Source: http://www.google.ca/patents/CN105247393A?cl=en
Timestamp: 2018-01-19 06:02:54
Document Index: 102521399

Matched Legal Cases: ['ART0', 'ART0', 'ART0', 'ART0', 'ART0', 'ART0']

Patent CN105247393A - Display device with capacitive touch panel - Google Patents
A display device with a capacitive touch panel according to the present invention comprises, between a display panel and a cover layer, a laminate which has a viewing-side polarizing plate, a first conductive layer, a second conductive layer and a base. The first conductive layer, the second conductive...http://www.google.ca/patents/CN105247393A?cl=en&utm_source=gb-gplus-sharePatent CN105247393A - Display device with capacitive touch panel
Publication number CN105247393 A
Application number CN 201480028537
PCT number PCT/JP2014/002046
Also published as US20160092005, WO2014185000A1
Publication number 201480028537.7, CN 105247393 A, CN 105247393A, CN 201480028537, CN-A-105247393, CN105247393 A, CN105247393A, CN201480028537, CN201480028537.7, PCT/2014/2046, PCT/JP/14/002046, PCT/JP/14/02046, PCT/JP/2014/002046, PCT/JP/2014/02046, PCT/JP14/002046, PCT/JP14/02046, PCT/JP14002046, PCT/JP1402046, PCT/JP2014/002046, PCT/JP2014/02046, PCT/JP2014002046, PCT/JP201402046
Inventors 丰嵨哲也, 山中俊介
Applicant 日本瑞翁株式会社
Patent Citations (6), Classifications (30), Legal Events (2)
CN 105247393 A
A display device with a capacitive touch panel according to the present invention comprises, between a display panel and a cover layer, a laminate which has a viewing-side polarizing plate, a first conductive layer, a second conductive layer and a base. The first conductive layer, the second conductive layer and the base are arranged closer to the cover layer than the viewing-side polarizing plate; and the first conductive layer is arranged closer to the cover layer than the second conductive layer. The first conductive layer and the second conductive layer are arranged apart from each other in the lamination direction, and constitute a capacitive touch sensor. The first conductive layer is formed on the cover layer-side surface of the base, and the second conductive layer is formed on the display panel-side surface of the base. The base has an optical film having a (2n - 1)[Lambda]/4 retardation (wherein n is a positive integer). The viewing-side polarizing plate has a polarizing film. The intersection angle between the slow axis of the optical film and the transmission axis of the polarizing film is about 45 degrees when viewed from the lamination direction.
1.一种带静电容量式触摸面板的显示装置，其在显示面板和覆盖层之间具备叠层体，该叠层体具有视觉辨认侧偏振片、第一导电层、第二导电层及基材， 所述第一导电层、所述第二导电层及所述基材较所述视觉辨认侧偏振片更靠近所述覆盖层侧，并且，所述第一导电层较所述第二导电层更靠近覆盖层侧， 所述第一导电层及所述第二导电层在叠层方向上相互隔离开地配置而构成静电容量式触控传感器， 所述第一导电层形成于所述基材的所述覆盖层侧的表面， 所述第二导电层形成于所述基材的所述显示面板侧的表面， 所述基材具有光学膜，该光学膜具有(2η-1) λ/4的相位差，其中，η为正整数， 所述视觉辨认侧偏振片具有偏振膜， 从叠层方向观察，所述光学膜的慢轴与所述偏振膜的透射轴的夹角约为45°。 A display device with a touch panel of the electrostatic capacity, which includes a laminate layer between the display panel and the cover, the laminated body having visually recognizable side polarizing plate, the first conductive layer, a second conductive layer and the substrate material, the first conductive layer, the second conductive layer and the substrate than the visual recognition side polarizing plate closer to the cover layer side, and the first conductive layer than the second conductive layer closer to the side of the cover layer, the first conductive layer and the second conductive layer isolated from each other and arranged an electrostatic capacity type touch sensor in the laminating direction, the first conductive layer formed on said base surface side of the top panel of the cover layer side of the material, the second conductive layer is formed on the display substrate, said substrate having an optical film, the optical film having (2η-1) λ / phase 4, wherein, [eta] is a positive integer, the visual recognition side polarizing plate having a polarizing film, as viewed from the lamination direction, the angle between the slow axis of the optical film and the polarizing film transmission axis of about 45 °.
2.一种带静电容量式触摸面板的显示装置，其在显示面板和覆盖层之间具备叠层体，该叠层体具有视觉辨认侧偏振片、第一导电层、第二导电层及显示面板侧基材， 所述第一导电层、所述第二导电层及所述显示面板侧基材较所述视觉辨认侧偏振片更靠近所述显示面板侧，并且，所述第一导电层较所述第二导电层更靠近覆盖层侧， 所述第一导电层及所述第二导电层在叠层方向上相互隔离开地配置而构成静电容量式触控传感器， 所述第一导电层形成于所述显示面板侧基材的所述覆盖层侧的表面， 所述第二导电层形成于所述显示面板侧基材的所述显示面板侧的表面。 2. A display device with a touch panel of the electrostatic capacity, which includes a display panel and the laminate between the cover layer, the laminate having a visual recognition side polarizing plate, the first conductive layer, a second conductive layer and the display panel side of the substrate, the first conductive layer, the second conductive layer and the display panel side of the substrate than the visual recognition side polarizing plate closer to the display panel side, and the first conductive layer, comparing said second conductive layer closer to the side of the cover layer, the first conductive layer and the second conductive layer isolated from each other and arranged an electrostatic capacity type touch sensor in the laminating direction, the first conductive layer is formed on a surface side of the base panel of the cover layer side of the display, the second conductive layer is formed on the surface of the display panel side of the display panel side of the substrate.
3.根据权利要求2所述的带静电容量式触摸面板的显示装置，其中， 在所述覆盖层与所述视觉辨认侧偏振片之间进一步具备光学膜，该光学膜具有(2η-1)λ/4的相位差，其中，η为正整数，所述视觉辨认侧偏振片具有偏振膜，从叠层方向观察，所述光学膜的慢轴与所述偏振膜的透射轴的夹角约为45°， 及/或所述显示面板侧基材具有光学补偿用相位差膜。 The display device with the electrostatic capacity type touch panel according to claim 2, wherein, in the cover layer and the visibility is further provided between the side of the optical film polarizing plate, the optical film having (2η-1) phase difference of λ / 4, where, [eta] is a positive integer, the visual recognition side polarizing plate having a polarizing film, as viewed from the lamination direction, the transmission axis of the slow axis of the optical film and the polarizing film angle of about is 45 °, and / or the display panel side of the substrate having an optical compensating retardation film.
4.根据权利要求1〜3中任一项所述的带静电容量式触摸面板的显示装置，其中，所述显示面板为液晶面板。 The display device according to an electrostatic capacity type touch panel according to any one of claims 1~3, wherein said display panel is a liquid crystal panel.
5.一种带静电容量式触摸面板的显示装置，其在显示面板和覆盖层之间具备叠层体，该叠层体具有圆偏振片、第一导电层及第二导电层， 所述圆偏振片包含基材和偏振片， 所述第一导电层、所述第二导电层及所述基材较所述偏振片更靠近所述显示面板侧，并且，所述第一导电层较所述第二导电层更靠近覆盖层侧， 所述第一导电层及所述第二导电层在叠层方向上相互隔离开地配置而构成静电容量式触控传感器， 所述第一导电层形成于所述基材的所述覆盖层侧的表面， 所述第二导电层形成于所述基材的所述显示面板侧的表面， 所述基材具有光学膜，该光学膜具有λ/4的相位差， 所述偏振片具有偏振膜。 A display device of an electrostatic capacity type touch panel, which is provided between the display panel and the cover layer laminate, the laminate having a circularly polarizing plate, the first conductive layer and the second conductive layer, said circular a polarizing plate comprising a substrate and a polarizer, said first conductive layer, the second conductive layer and the polarizing plate closer to the substrate than the display panel side, and the first conductive layer than the closer to the side of the cover layer, the first conductive layer and the second conductive layer isolated from each other and arranged an electrostatic capacity type touch sensor in the laminating direction, the first conductive layer is formed of said second conductive layer the surface of the panel to the side surface of the cover layer side of the substrate, the second conductive layer is formed on the display substrate, said substrate having an optical film, the optical film having a λ / 4 the phase difference of the polarizing plate having a polarizing film.
6.根据权利要求5所述的带静电容量式触摸面板的显示装置，其中，从叠层方向观察，所述光学膜的慢轴与所述偏振膜的透射轴的夹角约为45°。 6. The display device according to an electrostatic capacity type touch panel according to claim 5, wherein, viewed from the lamination direction, the angle between the optical film and the slow axis of the polarizing film transmission axis of about 45 °.
7.根据权利要求6所述的带静电容量式触摸面板的显示装置，其中，所述光学膜具有反波长色散特性。 7. The display device according to an electrostatic capacity type touch panel according to claim 6, wherein the optical film has reverse wavelength dispersion characteristics.
8.根据权利要求5所述的带静电容量式触摸面板的显示装置，其中，所述圆偏振片还包含位于所述基材和所述偏振片之间的偏振片侧基材， 所述偏振膜位于所述偏振片的所述显示面板侧的表面， 所述偏振片侧基材贴合于所述偏振膜的所述显示面板侧的表面， 从叠层方向观察，所述光学膜的慢轴与所述偏振膜的透射轴的夹角约为75°， 所述偏振片侧基材具有其它光学膜，该其它光学膜具有λ/2的相位差， 从叠层方向观察，所述其它光学膜的慢轴与所述偏振膜的透射轴的夹角约为15°。 The display device according to an electrostatic capacity type touch panel according to claim 5, wherein, further comprising polarizing the circularly polarizing plate side of the substrate and the polarizer located on the substrate between the polarization the film of the polarizing plate located on a display panel surface side of the polarizing film side surface of the panel substrate bonded to the side of the polarizing film are shown, viewed from the direction of lamination of the optical film is slow the angle between the axis of the polarizing film transmission axis of about 75 °, the polarizing film side of the substrate having the other optical films, the optical film having other retardation λ / 2, and viewed from the lamination direction, the other the angle between the optical film and the slow axis of the polarizing film transmission axis of about 15 °.
9.根据权利要求5所述的带静电容量式触摸面板的显示装置，其中，所述圆偏振片还包含位于所述基材和所述偏振片之间的偏振片侧基材， 所述偏振膜位于所述偏振片的所述显示面板侧的表面， 所述偏振片侧基材贴合于所述偏振膜的所述显示面板侧的表面， 从叠层方向观察，所述光学膜的慢轴与所述偏振膜的透射轴的夹角约为90°， 所述偏振片侧基板具有其它光学膜，该其它光学膜具有λ/2的相位差， 从叠层方向观察，所述其它光学膜的慢轴与所述偏振膜的透射轴的夹角约为22.5°。 The display device according to claim 5, wherein the belt electrostatic capacity type touch panel, wherein, further comprising the circularly polarizing plate located on the side of the base substrate and the polarizing film between the polarizers, the polarization the film of the polarizing plate located on a display panel surface side of the polarizing film side surface of the panel substrate bonded to the side of the polarizing film are shown, viewed from the direction of lamination of the optical film is slow the angle between the axis of the transmission axis of the polarizing film is about 90 °, the polarizing film side substrate having other optical films, the optical film having other retardation λ / 2, and viewed from the lamination direction, the other optical the angle between the slow axis of the film is the polarizing film transmission axis of about 22.5 °.
10.根据权利要求5〜9中任一项所述的带静电容量式触摸面板的显示装置，其中，所述显示面板包含有机EL显示面板。 10. The display apparatus of an electrostatic capacity type touch panel according to any one of claim 5~9 claim, wherein the display panel includes an organic EL display panel.
11.根据权利要求1〜10中任一项所述的带静电容量式触摸面板的显示装置，其中，所述光学膜及/或所述其它光学膜为斜向拉伸膜。 11. A display apparatus according to any one of claims 1~10 electrostatic capacity type touch panel according to claim, wherein the optical film and / or other optical films to the obliquely stretched film.
12.根据权利要求1〜11中任一项所述的带静电容量式触摸面板的显示装置，其中，所述光学膜、所述相位差膜、及/或所述其它光学膜由环烯烃聚合物、聚碳酸酯、聚对苯二甲酸乙二醇酯或三乙酸纤维素形成。 12. The display apparatus of an electrostatic capacity type touch panel according to any one of 1~11 claim, wherein the optical film, the retardation film, and / or the other optical film is made of cyclic olefin polymerization thereof, polycarbonate, polyethylene terephthalate or cellulose triacetate is formed.
13.根据权利要求12所述的带静电容量式触摸面板的显示装置，其中，所述光学膜、所述相位差膜、及/或所述其它光学膜为不具有极性基团的环烯烃聚合物。 13. A display apparatus according to claim 12 wherein the electrostatic capacity type touch panel, wherein the optical film, the retardation film, and / or the other optical film having no polar group cycloolefin polymer.
14.根据权利要求1〜13中任一项所述的带静电容量式触摸面板的显示装置，其中，所述光学膜、所述相位差膜、及/或所述其它光学膜的相对介电常数为2以上且5以下。 14. The display device with a touch panel of the electrostatic capacity 1~13 according to any one of claims, wherein the optical film, the retardation film, and / or relative to the other optical film dielectric constant of 2 or more and 5 or less.
15.根据权利要求1〜14中任一项所述的带静电容量式触摸面板的显示装置，其中，所述光学膜、所述相位差膜、及/或所述其它光学膜的饱和吸水率为0.01质量％以下。 15. The display device with a touch panel of the electrostatic capacity 1~14 according to any one of claims, wherein the optical film, the retardation film saturated water absorption, and / or of the other optical film 0.01 mass% or less.
16.根据权利要求1〜15中任一项所述的带静电容量式触摸面板的显示装置，其中，所述第一导电层及所述第二导电层使用氧化铟锡、碳纳米管或银纳米线形成。 16. A display apparatus according to any one of claims 1~15 belt electrostatic capacity type touch panel, wherein the first conductive layer and the second conductive layer, indium tin oxide, carbon nanotubes or silver nanowires.
17.根据权利要求8或9所述的带静电容量式触摸面板的显示装置，其不具有折射率匹配层。 17. The display device according to claim 8 or 9 wherein the belt of the electrostatic capacity type touch panel, which does not have a refractive index matching layer.
带静电容量式触摸面板的显示装置 The display device with capacitance touch panel
[0001] 本发明涉及带触摸面板的显示装置，特别涉及带静电容量式触摸面板的的显示装置。 [0001] The present invention relates to a display device with a touch panel, and more particularly to an electrostatic capacitance type touch panel of the display device.
[0002] 在笔记本电脑、OA设备、医疗设备、车载导航、手机等便携式电子装置、个人信息终端(Personal Digital Assistant)等电子设备中，作为兼具输入机构的显示器，带触摸面板的显示装置已得到了广泛利用。 The display device [0002] In a laptop, OA equipment, medical equipment, car navigation, mobile phones and other portable electronic devices, personal information terminal (Personal Digital Assistant) and other electronic devices, as both the input means display with touch panel has It has been widely used.
[0003] 这里，作为触摸面板的方式，已知有静电容量式、光学式、超声波式、电磁感应式、电阻膜式等。 [0003] Here, the touch panel mode, known electrostatic capacity type, an optical type, ultrasonic type, electromagnetic induction type, a resistive film type and the like. 而其中，捕捉指尖和导电层之间的静电容量的变化来检测输入坐标的静电容量式，已与电阻膜式并列成为目前触摸面板的主流。 The one that captures a change in capacitance between the finger and the conductive layer to detect input coordinates capacitance-type parallel with the resistor film has become the mainstream of the touch panel.
[0004] 以往，作为带静电容量式触摸面板的显示装置，例如，已知有从背光侧向视觉辨认侧依次叠层背光侧偏振片、液晶面板、视觉辨认侧偏振片、触控传感器部及覆盖玻璃层而成的液晶显示装置，所述液晶面板是在2片玻璃基板(薄膜晶体管基板及滤色片基板)之间夹入液晶层而成的。 [0004] Conventionally, as a display device with capacitance touch panel, for example, are known to identify the side of the backlight side polarizing plate stacked in this order from the backlight side vision, the liquid crystal panel, visual recognition side polarizing plate, and the touch sensor section covering glass layer made of a liquid crystal display device, the liquid crystal panel is in between two glass substrates (the TFT substrate and the color filter substrate) is formed with a liquid crystal layer. 另外，在上述传统的带静电容量式触摸面板的液晶显示装置中，有时在液晶面板和视觉辨认侧偏振片之间设置视角补偿用的相位差膜。 Further, in the above conventional electrostatic capacity type touch panel LCD device, the liquid crystal panel and sometimes visibility viewing angle compensating retardation film disposed between the polarizing plate side.
[0005] 另外，在传统的带触摸面板的液晶显示装置中，提出了通过在视觉辨认侧偏振片和覆盖玻璃层之间设置1/4波长板，从而利用1/4波长板将从液晶面板侧起通过视觉辨认侧偏振片向覆盖玻璃层侧进发的直线偏振光转变为圆偏振光或椭圆偏振光的方案(例如，参见专利文献I) ο如此一来，以佩戴偏光眼镜的状态操作带触摸面板的液晶显示装置时，即使在视觉辨认侧偏振片的透射轴和偏光眼镜的透射轴正交而形成所谓的正交尼科尔状态的情况下，也可以视觉辨认到显示内容。 [0005] Further, in the conventional liquid crystal display with a touch panel device, proposed by the visual recognition side polarizing plate and a 1/4 wavelength plate disposed between the cover glass layer, whereby the use of the 1/4 wavelength plate from the liquid crystal panel identified from side to side polarizer by visual side of the glass layer covering the moving linearly polarized light into circularly polarized light or elliptically polarized scheme (e.g., see Patent Document I) ο Thus, the state of wearing the polarized glasses with the operation when the touch panel LCD device, even in the case of the visual recognition side polarizer and the transmission axis orthogonal to the transmission axis of the polarizing glasses and a so-called crossed Nicols state to be visually recognized display.
[0006] 另外，以往，作为其它带静电容量式触摸面板的显示装置，已知有从显示面板侧(发光侧)向视觉辨认侧依次叠层显示面板、防反射用圆偏振片、触控传感器部及覆盖玻璃层而成的有机EL显示装置，所述显示面板包含有机EL显示(OLED)面板及相比于该OLED面板位于视觉辨认侧的阻挡玻璃层，所述防反射用圆偏振片包含1/4波长板及相比于该1/4波长板位于视觉辨认侧的偏振片(例如，参见专利文献2)。 [0006] In addition, conventional, as other display devices with electrostatic capacity type touch panel, the display panel is known from the side (light emitting side) to identify the visual side of the display panel are stacked, a circularly polarizing plate with anti-reflection, the touch sensor portion covering glass layer and an organic EL display device from the display panel includes an organic EL display (OLED) panel and compared to the OLED panel located visibility glass barrier layer side, the circularly polarizing plate using the antireflection comprising a polarizing plate (e.g., see Patent Document 2) as compared to the 1/4 wavelength plate and the 1/4 wavelength plate located on the side visibility. 根据这样的有机EL显示装置，可以防止外部入射光(自然光)在OLED面板表面(特别是OLED面板中电极的表面)的反射光而导致的显示内容变得难以视觉辨认。 The display device according to this organic EL, can prevent incident external display (natural light) in the OLED panel surface (especially the OLED panel surface electrode) caused by reflected light becomes difficult to visually identify.
[0007]另外，就上述传统的带静电容量式触摸面板的显示装置而言，其触控传感器部均是例如将2片表面形成有导电层的透明基板以使一片透明基板的导电层和另一片透明基板的与形成有导电层的一侧相反一侧的面相对的方式进行叠层而形成的(例如，参见专利文献3) ο [0007] Further, in the case of the display device with the above conventional electrostatic capacity type touch panel, the touch sensor section which are for example, two electrically conductive layer formed on the surface of the transparent substrate so that the substrate is a transparent conductive layer and other a transparent substrate formed with the opposite surface of the opposite way of the visible side of the conductive layer formed by laminating (e.g., see Patent Document 3) ο
[0008] 现有技术文献 [0008] prior art documents
[0010] 专利文献1:日本特开2009-169837号公报 [0010] Patent Document 1: Japanese Unexamined Patent Publication No. 2009-169837
[0011] 专利文献2:日本特开2013-41566号公报 [0011] Patent Document 2: Japanese Unexamined Patent Publication No. 2013-41566
[0012] 专利文献3:日本特开2013-3952号公报 [0012] Patent Document 3: Japanese Unexamined Patent Publication No. 2013-3952
[0013] 发明要解决的问题 [0013] The invention is to solve the problem
[0014] 于是，近年来，对于带静电容量式触摸面板的显示装置，要求实现装置的进一步的薄型化/轻质化。 [0014] Thus, in recent years, a display device for an electrostatic capacity type touch panel, the apparatus required to achieve further thinning / lightening.
[0015] 然而，在上述传统的带静电容量式触摸面板的显示装置中，由于使用了2片表面形成有导电层的透明基板来形成触控传感器部，因此，存在液晶面板或OLED面板与覆盖玻璃层之间的厚度变厚、结果导致装置整体的厚度变厚这样的问题。 [0015] However, in the above conventional display device with capacitance touch panel, since the two surfaces of the transparent substrate is formed with a conductive layer to form the touch sensor unit, therefore, the presence of a liquid crystal panel or an OLED panel and the covering thickness of the glass layer becomes thicker, resulting in the entire apparatus must be thick such problems.
[0016] 特别是，液晶面板或OLED面板与覆盖玻璃层之间的厚度变厚的问题在如上所述的设置有视角补偿用相位差膜、用以实现在佩戴偏光眼镜的状态下对带触摸面板的显示装置的操作的1/4波长板、或防反射用圆偏振片的情况下等显示面板与覆盖玻璃层之间的构件数多的情况下尤为突出。 [0016] In particular, the liquid crystal panel or an OLED panel and the thickness of the cover glass layer thickening problems described above have set a viewing angle compensation retardation film to achieve in the state of wearing polarized glasses with a touch the operation panel display device 1/4 wavelength plate, or a circularly polarizing plate with anti-reflection case and the cover panel and other display member between the glass layer particularly under index is large.
[0017] 为此，本发明的第I目的在于提供实现了薄型化的带静电容量式触摸面板的显示 [0017] To this end, I, object of the present invention to provide a thin tape to achieve a capacitance touch panel display
[0018] 另外，本发明的第2目的在于提供在佩戴偏光眼镜(polarized sunglass)的状态下也能够操作、并且实现了薄型化的带静电容量式触摸面板的显示装置。 [0018] In addition, a second object of the present invention is to provide in wearing polarized glasses (polarized sunglass) state can operate, and to achieve a display device thinner electrostatic capacity type touch panel.
[0019] 进一步，本发明的第3目的在于提供能够防止由外部入射光的反射光而导致显示内容变得难以视觉辨认、并且实现了薄型化的带静电容量式触摸面板的显示装置。 [0019] Further, a third object of the present invention to provide a light reflection can be prevented by the incident light from outside and cause the display to become difficult to visually recognize, and to achieve a display device with thin electrostatic capacity type touch panel.
[0020] 解决问题的方法 [0020] Solving the Problems
[0021] 本发明人等为解决上述课题而进行了深入研究。 Etc. [0021] The present inventors to solve the above problems, and conducted intensive studies. 进而，本发明人等想到，通过在带静电容量式触摸面板的显示装置中使用的相位差膜、1/4波长板、或防反射用圆偏振片等赋予相位差的光学构件的两面形成导电层，从而省略导电层形成用的透明基板，可使带静电容量式触摸面板的显示装置薄型化。 Further, the present inventors have thought that by the retardation film used in the display device with the electrostatic capacity type touch panel, two 1/4-wavelength plate or circular polarizing plate with anti-reflection optical retardation assigned to form a conductive member layer, thus omitting the conductive layer is formed of a transparent substrate, the display device can make an electrostatic capacity type touch panel thinner.
[0022] 本发明的目的在于有效地解决上述课题，本发明的第一发明的带静电容量式触摸面板的显示装置在显示面板和覆盖层之间具备具有视觉辨认侧偏振片、第一导电层、第二导电层及基材的叠层体，上述第一导电层、上述第二导电层及上述基材较上述视觉辨认侧偏振片更靠近上述覆盖层侧，并且，上述第一导电层相比于上述第二导电层位于上述覆盖层侧，上述第一导电层及上述第二导电层在叠层方向上相互隔离开地配置而构成静电容量式触控传感器，上述第一导电层形成于上述基材的上述覆盖层侧的表面，上述第二导电层形成于上述基材的上述显示面板侧的表面，上述基材含有具有(2η_1) λ/4的相位差[其中，η为正整数]的光学膜，上述视觉辨认侧偏振片具有偏振膜，从叠层方向观察，上述光学膜的慢轴与上述偏振膜的透射轴的夹角为约45°。 [0022] The object of the present invention is to effectively solve the above problem, a display device with a capacitance touch panel of the first aspect of the present invention between the display panel and the cover layer includes a visually recognizable side polarizer, a first conductive layer , the second conductive layer and the laminate substrate, the first conductive layer, the second conductive layer and said substrate than said visual recognition side polarizing plate side is closer to said cover layer and said first conductive layer than to said second conductive layer located at the side of the cover layer, the first conductive layer and said second conductive layer separated from each other in the laminating direction are arranged to constitute open capacitance type touch sensor is formed on the first conductive layer the surface of the coating layer side of the substrate, the second conductive layer is formed on the surface of said substrate side of the display panel, comprising a substrate having the above-described (2η_1) λ / 4 retardation [wherein, [eta] is a positive integer ] the optical film, polarizing plate having the above-described visual recognition side polarizing film, as viewed from the lamination direction, the angle between the transmission axis of the slow axis of the optical film and the polarizing film was about 45 °. 这样，如果将具有赋予光以给定相位差的光学膜的基材设置成比视觉辨认侧偏振片更靠近覆盖层侧，且使光学膜的慢轴与偏振膜的透射轴的夹角为约45°，则在佩戴偏光眼镜的状态下也能够实现对带触摸面板的显示装置的操作。 Thus, if the optical film having the optical imparting a given phase difference than that of the substrate arranged closer to the visual recognition side polarizing plate side of the cover layer, and so that the transmission axis of the polarizing film and the slow axis of the optical film included angle of about 45 °, then in the state of wearing polarized glasses can also be achieved on a display device with a touch panel operation. 另外，如果在一个基材上形成第一导电层及第二导电层这两者，则可以削减用于形成导电层的透明基板，简化触控传感器的结构，从而减薄显示面板和覆盖层之间的厚度。 Further, if the first conductive layer and the second conductive layer is formed both on a substrate, the substrate can be reduced for forming a transparent conductive layer, simplifying the structure of the touch sensor, thus thinning the display panel and the cover layer thickness between.
[0023] 需要说明的是，在上述第一发明中，所述“约45° ”是指，能够利用基材的光学膜将从显示面板侧起通过视觉辨认侧偏振片向覆盖层侧进发的直线偏振光转变为圆偏振光或椭圆偏振光、从而实现在佩戴偏光眼镜的状态下的操作的角度，例如，是指45° ±10°的角度范围。 [0023] Note that, in the first invention, the "approximately 45 °" means that the optical film can utilize a substrate from moving from the display panel side to the cover layer side by side polarizer visibility linearly polarized light into circularly polarized light or elliptically polarized light, enabling the angle of the operation in a state of wearing polarized glasses, for example, refers to the angle range of 45 ° ± 10 °.
[0024]另外，本发明的目的在于有效地解决上述课题，本发明的第二发明的带静电容量式触摸面板的显示装置在显示面板和覆盖层之间具备具有视觉辨认侧偏振片、第一导电层、第二导电层及显示面板侧基材的叠层体，上述第一导电层、上述第二导电层及上述显示面板侧基材较上述视觉辨认侧偏振片更靠近上述显示面板侧，并且，上述第一导电层相比于上述第二导电层位于上述覆盖层侧，上述第一导电层及上述第二导电层在叠层方向上相互隔离开地配置而构成静电容量式触控传感器，上述第一导电层形成于上述显示面板侧基材的上述覆盖层侧的表面，上述第二导电层形成于上述显示面板侧基材的上述显示面板侧的表面。 [0024] Further, the object of the present invention is to effectively solve the above problem, a display device with a touch panel of the electrostatic capacity of the second aspect of the present invention between the display panel and the cover layer having visually recognizable side polarizing plate includes, a first a conductive layer, a second conductive layer and the display panel side of the laminate base material, the first conductive layer, said conductive layer and said second display panel side of the substrate than the above-described visual recognition side polarizing plate closer to the display panel side, and said first conductive layer is located at the side of the cover layer compared to the second conductive layer, the first conductive layer and said second conductive layer separated from each other in the laminating direction are arranged to constitute open capacitance type touch sensor said first conductive layer is formed on the surface of the coating layer side of the display panel side of the substrate, the second conductive layer is formed on a surface of the display panel side of the display panel side of the substrate. 这样一来，如果在一个显示面板侧基材上形成第一导电层及第二导电层这两者，则可以削减用于形成导电层的透明基板，简化触控传感器的结构，从而减薄显示面板和覆盖层之间的厚度。 Thus, if the first conductive layer and the second conductive layer is formed on both a display panel side of the substrate, the substrate can be reduced for forming a transparent conductive layer, simplifying the structure of the touch sensor, thus thinning the display thickness of the panel and a cover layer.
[0025] 这里，本发明的第二发明的带静电容量式触摸面板的显示装置优选:(i)在上述覆盖层与上述视觉辨认侧偏振片之间进一步具备具有(2η-1) λ/4的相位差[其中，η为正整数]的光学膜，且上述视觉辨认侧偏振片具有偏振膜，从叠层方向观察，上述光学膜的慢轴与上述偏振膜的透射轴的夹角为约45° ;及/或(ii)上述显示面板侧基材具有光学补偿用相位差膜。 [0025] Here, a display device with a touch panel of the electrostatic capacity of the second aspect of the present invention is preferably: (i) in the cover layer and the visual recognition is further provided between the polarizing plate having a side (2η-1) λ / 4 the phase difference [wherein, [eta] is a positive integer] the optical film and the visual recognition side polarizing plate having the above polarizing film, as viewed from the lamination direction, the angle between the transmission axis of the slow axis of the optical film and the polarizing film was about 45 °; and / or (ii) the display panel side of the substrate having an optical compensating retardation film. 这样，如果将赋予光以给定相位差的光学膜设置成比视觉辨认侧偏振片更靠近覆盖层侧，且使光学膜的慢轴与偏振膜的透射轴的夹角为约45°，则可以实现在佩戴偏光眼镜的状态下也能够实现对带触摸面板的显示装置的操作。 Thus, if the film is imparted to the optical phase difference given to the light is set lower than visually recognizable side polarizing plate closer to the side of the cover layer, and so that the transmission axis of the polarizing film and the slow axis of the optical film of the angle of about 45 °, the can be achieved in the state of wearing polarized glasses can also be achieved on a display device with a touch panel operation. 另外，如果将具有光学补偿用相位差膜的显示面板侧基材设置于比视觉辨认侧偏振片更靠近显示面板侧，则能够对视角依赖性、斜向观察时的偏振片的漏光现象加以补偿。 Further, if the display panel having an optical compensating retardation film side of the base is disposed on the side visibility than the polarizing plate closer to the display panel side, it is possible for the viewing angle dependency, as obliquely viewed polarizing light leakage compensated .
[0026] 需要说明的是，在上述第二发明中，所述“约45° ”是指，能够利用光学膜将从显示面板侧起通过视觉辨认侧偏振片向覆盖层侧进发的直线偏振光转变为圆偏振光或椭圆偏振光、从而实现在佩戴偏光眼镜的状态下的操作的角度，例如，是指45° ±10°的角度范围。 [0026] Note that, in the second invention, the "approximately 45 °" means can be utilized to identify the optical film from the panel side to the visual side polarizing plate by moving the cover layer side of the linearly polarized light from the display into a circularly polarized light or elliptically polarized light, enabling the angle of the operation in a state of wearing polarized glasses, for example, it refers to the angle range of 45 ° ± 10 °.
[0027] 另外，对于上述的第一及第二发明的情况而言，优选上述显示面板为液晶面板。 [0027] Further, in the case of the above-described first and the second embodiment, it is preferable that the display panel is a liquid crystal panel.
[0028]另外，本发明的目的在于有效地解决上述课题，本发明的第三发明的带静电容量式触摸面板的显示装置在显示面板和覆盖层之间具备具有圆偏振片、第一导电层及第二导电层的叠层体，上述圆偏振片包含基材和偏振片，上述第一导电层、上述第二导电层及上述基材较上述偏振片更靠近上述显示面板侧，并且，上述第一导电层相比于上述第二导电层位于上述覆盖层侧，上述第一导电层及上述第二导电层在叠层方向上相互隔离开地配置而构成静电容量式触控传感器，上述第一导电层形成于上述基材的上述覆盖层侧的表面，上述第二导电层形成于上述基材的上述显示面板侧的表面，上述基材含有具有λ/4的相位差的光学膜，上述偏振片具有偏振膜。 [0028] Further, the object of the present invention is to effectively solve the above problem, a display device with a touch panel of the electrostatic capacity of the third aspect of the present invention between the face plate and the display includes a cover layer having a circularly polarizing plate, the first conductive layer, laminate and the second conductive layer, said circularly polarizing plate comprising a substrate and a polarizer, said first conductive layer, the second conductive layer and said substrate than said polarizing film side is closer to said display panel, and said compared to the first conductive layer of the second conductive layer located at the side of the cover layer, the first conductive layer and said second conductive layer separated from each other in the laminating direction are arranged to constitute open capacitance type touch sensor, the first a conductive layer formed on the surface of the substrate side of the cover layer, the second conductive layer is formed on the surface of said substrate side of the display panel, said substrate comprising an optical retardation film having λ / 4 of the above polarizer has a polarizing film. 这样，如果如果将相对于偏振片而言在显示面板侧具有含有赋予光以λ/4相位差的光学膜的基材的圆偏振片设置在显示面板和覆盖层之间，则可以防止由外部入射光的反射光而导致显示内容变得难以视觉辨认。 Thus, if the if the polarizing plate with respect to the display panel side in terms of having a light comprising circularly polarizing plate imparting λ / 4 optical retardation film disposed between the substrate and the cover layer display panel, it is possible to prevent external the reflection of the incident light resulting display becomes difficult to visually recognize. 另外，如果在一个基材上形成第一导电层及第二导电层这两者，则无需另外使用用以形成导电层的透明基板，因此可以简化触控传感器的结构，减薄显示面板和覆盖层之间的厚度。 Further, if the first conductive layer and the second conductive layer is formed on both a base material, there are no additional substrate used for forming the transparent conductive layer, it is possible to simplify the structure of the touch sensor, the display panel and the cover thinning the thickness of the layer.
[0029] 需要说明的是，所述“圆偏振片”是指:能够通过在将从覆盖层侧向显示面板侧入射的光转变为直线偏振光后，在将该直线偏振光转变为圆偏振光的同时、将作为该圆偏振光在显不面板的反射光的反向圆偏振光转变为与上述直线偏振光正交的其它直线偏振光，从而来防止反射光向覆盖层侧透射的构件，是至少具备偏振片和相比于该偏振片配置于显示面板侧的具有λ/4的相位差的光学膜的构件。 [0029] Note that, the "circularly polarizing plate" means: through from the cover layer side to the light incident side of the display panel into linearly polarized light, the linearly polarized light into the circularly polarized at the same light as the circularly polarized light circularly polarized in reverse of the panel was not reflected light into linearly polarized light perpendicular to said linearly polarized light other, thereby preventing the reflected light transmissive layer side to the cover member , is compared to at least a polarizer and an optical retardation film member having a λ / 4 polarizing film is disposed on the side of the display panel. 具体而言，作为“圆偏振片”，可列举例如:将具有偏振膜的偏振片和具有λ/4的相位差的光学膜以使光学膜的慢轴和偏振膜的透射轴的夹角成给定角度的方式依次叠层而成的圆偏振片；将后述的具有偏振膜的偏振片、具有λ/2的相位差的光学膜及具有λ/4的相位差的光学膜以使各光学膜的慢轴和偏振膜的透射轴的夹角成给定角度的方式依次叠层而成的圆偏振片。 Angle as a polarizing plate having a polarizing film and an optical film having a λ / 4 phase difference so that the slow axis of the optical film and the polarizing film transmission axis: Specifically, as "circularly polarizing plate" include e.g. to a given angle of approach of the circularly polarizing plate are stacked together; polarizing film is the polarizing plate described later, a phase difference of λ / 2 film and an optical film having an optical λ / 4 phase difference so that each the angle between the transmission axis of the polarizing film and the slow axis of the optical film into a predetermined manner to the angle formed by sequentially laminating a circularly polarizing plate. 需要说明的是，对于构成圆偏振片的偏振片和各种光学膜，可以在叠层方向上相互隔离开地配置，也可以在偏振片和光学膜之间、或在光学膜间介入地设置其它构件。 It notes that, for various optical films constituting a polarizing plate and the circularly polarizing plate may be isolated from each other in the laminating direction are arranged to be interposed between the polarizer and the optical film, or interventional disposed between the optical film other components.
[0030] 另外，就上述第三发明的情况而言，优选从叠层方向观察，上述光学膜的慢轴与上述偏振膜的透射轴的夹角为约45°。 [0030] Further, the case of the third invention, it is preferable to observe from the lamination direction, the angle between the transmission axis of the slow axis of the optical film and the polarizing film was about 45 °. 如果使光学膜的慢轴与偏振膜的透射轴的夹角为约45°、并利用偏振片和具有λ/4的相位差的光学膜来形成圆偏振片，则能够防止由外部入射光的反射光而导致显示内容变得难以视觉辨认。 If the optical film and the slow axis angle of the transmission axis of the polarizing film is about 45 °, and using a polarizing plate and an optical film having a retardation of λ / 4 is formed circularly polarizing plate, it is possible to prevent incident light from the outside reflected light resulting display becomes difficult to visually recognize.
[0031] 需要说明的是，在上述第三发明中，所述“约45° ”是指，能够防止由外部入射光的反射光而导致显示内容变得难以视觉辨认的角度，例如，是指45° ±5°的角度范围。 [0031] Note that, in the third invention, the "approximately 45 °" means capable of preventing the reflection of light caused by the incident light from outside becomes difficult to visually recognize the display angle, for example, means angle range of 45 ° ± 5 °.
[0032] 需要说明的是，就上述第三发明的情况而言，优选上述光学膜具有反波长色散特性。 [0032] Note that, the case of the third invention, it is preferable that the optical film having reverse wavelength dispersion characteristics. 这样一来，入射到光学膜的光的波长越长，所能提供的相位差的绝对值越大，波长越短，所能提供的相位差的绝对值越小，因此能够在宽波长范围获得期望的偏光特性，将直线偏振光良好地转变为圆偏振光。 As a result, light incident to the optical film the longer the wavelength, the greater the absolute value of the retardation can be provided, the shorter the wavelength, the absolute value of retardation can provide smaller, it is possible to obtain a wide wavelength range desired polarization characteristics, good linearly polarized light into circularly polarized light.
[0033]另外，本发明的第三发明的带静电容量式触摸面板的显示装置中，优选上述圆偏振片进一步包含位于上述基材和上述偏振片之间的偏振片侧基材，上述偏振膜位于上述偏振片的上述显示面板侧的表面，上述偏振片侧基材贴合于上述偏振膜的上述显示面板侧的表面，且从叠层方向观察，上述光学膜的慢轴与上述偏振膜的透射轴的夹角为约75°，上述偏振片侧基材含有具有λ/2的相位差的其它光学膜，且从叠层方向观察，上述其它光学膜的慢轴与上述偏振膜的透射轴的夹角为约15°。 [0033] Further, a display device with a touch panel of the electrostatic capacity of the third aspect of the present invention, preferably, the circularly polarizing plate further comprises a polarizer located on the substrate side of said substrate and said polarizing film, said polarizing film surface of the surface side of the display panel is located above said polarizer, said polarizer is bonded to said substrate-side polarizing film side of the display panel, and the observation from the lamination direction, the slow axis of the optical film and the polarizing film the angle between the transmission axis of about 75 °, said polarizer containing other side of the substrate film having an optical retardation λ / 2 of, and viewed from the lamination direction, the transmission axis of the slow axis of the other optical film and the polarizing film angle of about 15 °. 如果使光学膜的慢轴与偏振膜的透射轴的夹角为约75°、使上述其它光学膜的慢轴与上述偏振膜的透射轴的夹角为约15°，则可以利用光学膜和其它光学膜而形成所谓的宽带1/4波长板，从而在宽波长范围获得期望的偏光特性，将直线偏振光良好地转变为圆偏振光。 If the angle between the slow axis of the polarizing film so that the optical film of the angle between the transmission axis of about 75 °, said other optical films so that the transmission axis of the slow axis of the polarizing film is about 15 °, and the optical film can be used other characteristics of the optical polarizing film to form a so-called wide-band quarter wavelength plate in a wide wavelength range so as to obtain the desired, linearly polarized light into circularly polarized light well. 因此，能够良好地防止由外部入射光的反射光而导致显示内容变得难以视觉辨认。 Accordingly, it is possible to well prevent reflection of incident light by the external light caused by the display becomes difficult to visually recognize. 另外，如果使上述偏振膜位于上述偏振片的上述显示面板侧的表面、上述偏振片侧基材贴合于上述偏振膜的上述显示面板侧的表面，则能够将偏振片侧基材作为偏振膜的保护膜使用。 Further, if the above-mentioned polarizing film located on the surface of the display panel side of the polarizer, the polarizer is bonded to the surface side of the substrate of the display panel side of the polarizing film, the polarizing film can be used as the polarizing film side of the base protective film. 其结果，不需要偏振片的显示面板侧保护膜，可以减薄偏振片的厚度。 As a result, the display panel does not require a protective film side polarizer, the polarizer can reduce the thickness.
[0034] 需要说明的是，在上述第三发明中，所述“约75° ”及“约15° ”是指，能够形成宽带1/4波长板而防止由外部入射光的反射光而导致显示内容变得难以视觉辨认的角度，例如，分别指“75° ±5° ”、“15° ±5° ”的角度范围，所述“约75° ”及“约15° ”是指，在与偏振膜的透射轴相同的方向上测定的角度。 [0034] Note that, in the third invention, the "approximately 75 °" and "about 15 °" means capable of forming a broadband quarter-wave plate to prevent reflection of light caused by the incident light from outside it becomes difficult to visually recognize the display angle, e.g., refer to "75 ° ± 5 °", "15 ° ± 5 °" angular range, the "approximately 75 °" and "about 15 °" means, in on the same transmission axis of the polarizing film measured in the direction of the angle.
[0035] 进而，就本发明的第三发明的带静电容量式触摸面板的显示装置而言，优选上述圆偏振片进一步包含位于上述基材和上述偏振片之间的偏振片侧基材，上述偏振膜位于上述偏振片的上述显示面板侧的表面，上述偏振片侧基材贴合于上述偏振膜的上述显示面板侧的表面，从叠层方向观察，上述光学膜的慢轴与上述偏振膜的透射轴的夹角为约90°，上述偏振片侧基板含有具有λ/2的相位差的其它光学膜，且从叠层方向观察，上述其它光学膜的慢轴与上述偏振膜的透射轴的夹角为约22.5°。 [0035] Further, the case of a display device with capacitance touch panel of the third aspect of the present invention, preferably, the circularly polarizing plate side of the substrate further comprises a polarizer located between said substrate and said polarizer, said said surface side of the display panel is located on the polarizer polarizing film, said polarizing film side is bonded to the substrate surface of the display panel, the polarizing film on the side, viewed from the lamination direction, the slow axis of the optical film and the polarizing film the angle between the transmission axis of about 90 °, said polarizer containing other side of the substrate film having an optical retardation λ / 2 of, and viewed from the lamination direction, the transmission axis of the slow axis of the other optical film and the polarizing film angle of about 22.5 °. 如果使光学膜的慢轴与偏振膜的透射轴的夹角为约90°、使上述其它光学膜的慢轴与上述偏振膜的透射轴的夹角为约22.5°，则能够利用光学膜和其它光学膜而形成所谓的宽带1/4波长板，从而在宽波长范围获得期望的偏光特性，将直线偏振光良好地转变为圆偏振光。 If the angle between the slow axis of the polarizing film so that the optical film of the angle between the transmission axis of about 90 °, said other optical films so that the transmission axis of the slow axis of the polarizing film was about 22.5 °, it is possible to use an optical film and other characteristics of the optical polarizing film to form a so-called wide-band quarter wavelength plate in a wide wavelength range so as to obtain the desired, linearly polarized light into circularly polarized light well. 因此，能够防止由外部入射光的反射光而导致显示内容变得难以视觉辨认。 Accordingly, it is possible to prevent the reflection of incident light by the external light caused by the display becomes difficult to visually recognize. 另外，如果使上述偏振膜位于上述偏振片的上述显示面板侧的表面、使上述偏振片侧基材贴合于上述偏振膜的上述显示面板侧的表面，则能够将偏振片侧基材作为偏振膜的保护膜使用。 Further, if the above-mentioned polarizing film located on the surface of the display panel side of the polarizer, the above-mentioned polarizing plate is bonded to the surface side of the substrate of the display panel side of the polarizing film, the polarizing film side of the substrate can be used as a polarization protective film film use. 其结果，不需要偏振片的显示面板侧保护膜，能够减薄偏振片的厚度。 As a result, the display panel does not require a polarizing plate protective film side, it is possible to reduce the thickness of the polarizer.
[0036] 需要说明的是，在上述第三发明中，所述“约90° ”及“约22.5° ”是指，能够形成宽带1/4波长板而防止由外部入射光的反射光而导致显示内容变得难以视觉辨认的角度，例如，分别指“90° ±5° ”、“22.5° ±5° ”的角度范围，所述“约90° ”及“约22.5° ”是指，在与偏振膜的透射轴相同的方向上测定的角度。 [0036] Note that, in the third invention, the "approximately 90 °" and "approximately 22.5 °" means capable of forming a broadband quarter-wave plate to prevent reflection of light caused by the incident light from outside it becomes difficult to visually recognize the display angle, e.g., refer to "90 ° ± 5 °", "22.5 ° ± 5 °" angular range, the "approximately 90 °" and "approximately 22.5 °" means, in on the same transmission axis of the polarizing film measured in the direction of the angle.
[0037] 需要说明的是，就上述第三发明的情况而言，优选上述显示面板包含有机EL显示面板。 [0037] Note that, the case of the third invention, it is preferable that the display panel includes an organic EL display panel.
[0038]另外，在第一〜第三发明的带静电容量式触摸面板的显示装置中，优选上述光学膜、上述相位差膜、及/或上述其它光学膜的相对介电常数为2以上且5以下。 [0038] In the display device with a touch panel of the electrostatic capacity of the first to third aspects, preferably, the optical film, the relative dielectric constant of the retardation film, and / or said other optical film is 2 or more and 5 or less. 另外，优选上述光学膜、上述相位差膜、及/或上述其它光学膜的饱和吸水率为0.01质量％以下。 In addition, the saturated water absorption is preferable that the optical film, the retardation film, and / or said other optical film is 0.01 mass% or less. 进一步，上述光学膜、上述相位差膜、及/或上述其它光学膜优选由环烯烃聚合物、聚碳酸酯、聚对苯二甲酸乙二醇酯或三乙酸纤维素形成，更优选为不具有极性基团的环烯烃聚合物。 Further, the optical film, the retardation film, and / or preferred above other optical films, polycarbonate, polyethylene terephthalate or cellulose triacetate is formed from cycloolefin polymer, preferably having no more cyclic olefin polymer polar groups. 如果将上述光学膜、相位差膜、及/或其它光学膜用于基材及/或偏振片侧基材，则能够良好地形成静电容量式触控传感器。 If the above-mentioned optical film, retardation film, and / or other optical film to a substrate and / or the polarizing plate side of the substrate, it is possible to satisfactorily form an electrostatic capacity type touch sensor.
[0039] 需要说明的是，在本发明中，“相对介电常数”可基于ASTM D150进行测定。 [0039] It should be noted that, in the present invention, the term "relative permittivity" can be measured based on ASTM D150. 另外，在本发明中，“饱和吸水率”可基于ASTM D570进行测定。 In the present invention, "saturated water absorption" may be measured based on ASTM D570.
[0040] 进而，在第一〜第三发明的带静电容量式触摸面板的显示装置中，优选上述光学膜及/或上述其它光学膜为斜向拉伸膜。 [0040] Further, in the display device with capacitance touch panel of the first to third aspects, preferably, the optical film and / or the another optical film is a stretched film obliquely. 如果光学膜及/或其它光学膜为斜向拉伸膜，则能够通过卷对卷(roll-to-roll)容易地制造包含偏振片、和光学膜及/或其它光学膜的叠层体。 If the optical film and / or other optical film is a stretched film obliquely, it is possible by roll to roll (roll-to-roll) containing polarizer easily manufactured, and the optical film and / or other optical film laminate.
[0041] 进而，在第一〜第三发明的带静电容量式触摸面板的显示装置中，优选上述第一导电层及上述第二导电层是使用氧化铟锡、碳纳米管或银纳米线而形成的。 [0041] Further, in the display device with capacitance touch panel of the first to third aspects, preferably, the first conductive layer and the second conductive layer is indium tin oxide, carbon nanotubes or silver nanowires Forming.
[0042] 进而，就第三发明的带静电容量式触摸面板的显示装置而言，在圆偏振片进一步包含位于基材和偏振片之间的偏振片侧基材的情况下，优选不具有折射率匹配层。 By [0042] Further, the case of a display device with capacitance touch panel of the third invention, further comprising the circularly polarizing plate polarizing film side of the base located between the substrate and the polarizer, it is preferable not having a refractive rate matching layer. 这样一来，能够简化触控传感器的结构，从而减薄显示面板和覆盖层之间的厚度。 As a result, it is possible to simplify the structure of the touch sensor, thus thinning the thickness of the display panel and the cover layer.
[0043] 发明的效果 Effects [0043] invention.
[0044] 根据本发明，能够提供实现了薄型化的带静电容量式触摸面板的显示装置。 [0044] According to the present invention, it is possible to achieve a display device provided with thin electrostatic capacity type touch panel.
[0045] 特别是，根据本发明，能够提供在佩戴偏光眼镜的状态下也能够操作、并且实现了薄型化的带静电容量式触摸面板的显示装置。 [0045] Particularly, according to the present invention, it can be provided in a state of wearing polarized glasses can operate, and to achieve a display device with thin electrostatic capacity type touch panel. 另外，根据本发明，能够提供可防止由外部入射光的反射光而导致显示内容变得难以视觉辨认、并且实现了薄型化的带静电容量式触摸面板的显示装置。 Further, according to the present invention, can be provided by the prevent reflection of external incident light resulting display becomes difficult to visually recognize, and to achieve a display device with thin electrostatic capacity type touch panel.
[0046][图1]示意性地示出按照本发明的第I带静电容量式触摸面板的显示装置的主要部分的剖面结构的说明图。 [0046] [Figure 1] illustrates schematically illustrating a sectional structure of a main part of a display device in accordance with section I of the present invention is an electrostatic capacity type touch panel.
[0047][图2]示意性地示出按照本发明的第2带静电容量式触摸面板的显示装置的主要部分的剖面结构的说明图。 [0047] [2] schematically shows a sectional structure according to an explanatory view of a main part of the second electrostatic capacity type touch panel of the present invention is a display device.
[0048][图3]示意性地示出按照本发明的第3带静电容量式触摸面板的显示装置的主要部分的剖面结构的说明图。 [0048] [3] schematically shows a sectional structure according to an explanatory view of a main part of the third electrostatic capacity type touch panel of the present invention is a display device.
[0049][图4]示意性地示出按照本发明的第4带静电容量式触摸面板的显示装置的主要部分的剖面结构的说明图。 [0049] [4] schematically shows a sectional structure according to an explanatory view of a main part of a fourth electrostatic capacity type touch panel of the present invention is a display device.
[0050] 符号说明 [0050] Explanation of Symbols
[0051] 10背光侧偏振片 [0051] backlight side polarizing plate 10
[0052] 20显示面板 [0052] The display panel 20
[0053] 21薄膜晶体管基板 [0053] The TFT substrate 21
[0054] 22液晶层 [0054] 22 of the liquid crystal layer
[0055] 23滤色片基板 [0055] The color filter substrate 23
[0056] 24有机EL显示(OLED)面板 [0056] 24 the organic EL display (OLED) panel
[0057] 25阻挡层 [0057] the barrier layer 25
[0058] 30相位差膜 [0058] 30 retardation film
[0059] 40视觉辨认侧偏振片、偏振片 [0059] 40 visual recognition side polarizing polarizer
[0060] 41背光侧(显示面板侧)保护膜[0061 ] 42偏振膜 [0060] 41 on the backlight side (display panel side) protective film [0061] The polarizing film 42
[0062] 43覆盖层侧保护膜 [0062] cover layer 43 side of the protective film
[0063] 50第二导电层 [0063] The second conductive layer 50
[0064] 60 基材 [0064] 60 base
[0065] 61、63 硬涂层 [0065] 61, 63 hard coat layer
[0066] 62光学膜 [0066] The optical film 62
[0067] 70第一导电层 [0067] The first conductive layer 70
[0068] 80覆盖层 [0068] cover layer 80
[0069] 90偏振片侧基材 [0069] polarizing plate side of the substrate 90
[0070] 91、93 硬涂层 [0070] 91, 93 hard coat layer
[0071] 92其它光学膜 [0071] Other optical films 92
[0072] 100、200、300、400带静电容量式触摸面板的显示装置 [0072] The display device 100,200,300,400 electrostatic capacity type touch panel
[0073] 以下，结合附图对本发明的实施方式进行具体说明。 [0073] Hereinafter, with reference to the embodiment of the present invention will be described in detail. 需要说明的是，各图中标有相同符号的，表示的是相同的构成要素。 Note that, the figures labeled with the same symbols denote the same components. 另外，在各图中，在能够实现本发明目的的范围内，可以在位于各构件之间的空间部分设置追加的层或膜。 In each figure, the object can be achieved within the scope of the present invention, various components can be located between a space portion is provided additional layers or films. 在此，作为追加的层或膜，例如可以列举用于将各构件彼此贴合而一体化的粘接剂层或粘结剂层，粘接剂层或粘结剂层优选相对于可见光为透明的，另外，优选为不会产生无用的相位差的层。 Here, as an additional layer or film, for example, may include various components to each other and integrated bonding adhesive layer or an adhesive layer, an adhesive layer or an adhesive layer is preferably transparent to visible light the addition is preferably no needless retardation layer.
[0074] <带静电容量式触摸面板的显示装置(第一实施方式)> [0074] <display device with electrostatic capacity type touch panel (the first embodiment)>
[0075]图1示意性地示出了按照本发明的第I带静电容量式触摸面板的显示装置的主要部分的剖面结构。 [0075] FIG. 1 schematically illustrates a cross-sectional structure of the main portion of the display device in accordance with section I of the present invention is an electrostatic capacity type touch panel. 这里，图1所示的带静电容量式触摸面板的显示装置100是兼具在画面上显示图像信息的显示功能、以及检测操作者触及的画面位置作为信息信号向外部输出的触控传感器功能的装置。 Here, the electrostatic capacity type touch panel display apparatus 1 shown in FIG. 100 is displayed on the screen of both the touch sensor function display image information, and to detect the position of the operator touch screen as an information signal to the external output means.
[0076] 带静电容量式触摸面板的显示装置100从照射背光的一侧(图1中的下侧。以下简称为“背光侧”)向着操作者视觉辨认图像的一侧(图1中的上侧。以下简称为“视觉辨认侧”)依次叠层而具有:背光侧偏振片10、作为显示面板20的液晶面板、光学补偿用相位差膜30、视觉辨认侧偏振片40、第二导电层50、基材60、第一导电层70、及覆盖层80。 Irradiated from one side of the backlight (lower side in FIG. 1. Hereinafter referred to as "the backlight side") display device [0076] with the electrostatic capacity type touch panel 100 toward the side of the operator to visually recognize the image (Figure 1 on side hereinafter referred to as "side visibility") having laminated in this order: the backlight side polarizing plate 10, the liquid crystal panel as a display panel 20, an optical compensating retardation film 30, visual recognition side polarizing plate 40, a second conductive layer 50, the substrate 60, the first conductive layer 70 and cover layer 80. 另外，在该带静电容量式触摸面板的显示装置100中，第一导电层70形成于基材60的一侧(覆盖层80侧)，第二导电层50形成于基材60的另一侧(显示面板20侧)的表面。 Further, in the display device 100 with the electrostatic capacity type touch panel, a first conductive layer 70 is formed on the side of the substrate 60 (the cover layer 80 side), the second conductive layer 50 is formed on the other side of the base plate 60 (display panel 20 side) of the surface.
[0077] 需要说明的是，对于背光侧偏振片10、显示面板20、相位差膜30、视觉辨认侧偏振片40、形成有第一导电层70及第二导电层50的基材60、以及覆盖层80，可通过使用粘接剂层或粘结剂层、或通过构件表面的等离子体处理等已知的方法，将各构件彼此间相互贴合而实现一体化。 [0077] Note that, the backlight side polarizing plate 10, the display panel 20, the retardation film 30, visual recognition side polarizing plate 40, 70 and the substrate 60 is formed with a first conductive layer on the second conductive layer 50, and cover layer 80, by using an adhesive layer or an adhesive layer, or by known methods such as plasma treatment of the surface of the member, each member will be mutually bonded to each other and integrated. 即，图1中的叠层结构的间隙部分形成有例如粘接剂层或粘结剂层。 That is, the gap portion 1 is formed with a stacked structure such as an adhesive layer or an adhesive layer.
[0078][背光侧偏振片] [0078] [backlight side polarizing plate]
[0079] 作为背光侧偏振片10，可以使用具有偏振膜的已知的偏振片、例如利用2片保护膜夹持偏振膜而成的偏振片。 [0079] As the backlight side polarizing plate 10, a known polarizer has the polarizing film, for example, using two protective film made of a polarizing film sandwiched polarizer. 进一步，对于背光侧偏振片10，以使背光侧偏振片10的偏振膜的透射轴和后续详细说明的视觉辨认侧偏振片40的偏振膜42的透射轴沿叠层方向(在图1中为上下方向)观察时正交的方式进行配置，可实现利用作为显示面板20的液晶面板的图像的显示。 Further, the backlight side polarizing plate 10, so that polarizing transmission axis of the backlight side polarizing film 10 and the subsequent detailed description of the visual recognition side polarizing plate transmission axis of the polarizing film 40 in the stacking direction 42 (as in FIG. 1 configure the vertical direction) perpendicular to the observation mode, enabling the use of a liquid crystal panel as an image display panel 20 of the display.
[0080][显示(液晶)面板] [0080] [display (LCD) panel]
[0081] 就作为显示面板20的液晶面板而言，可以使用在2片基板间夹持液晶层而成的液晶面板、例如在位于背光侧的薄膜晶体管基板21和位于视觉辨认侧的滤色片基板23之间夹持液晶层22而成的液晶面板。 [0081] For the purposes of the liquid crystal panel as the display panel 20 can be used between the two substrates sandwiching the liquid crystal layer made of liquid crystal panel, for example, located at the backlight side of the TFT substrate 21 and the color filter side is located visibility liquid crystal layer interposed between the liquid crystal panel 22 from substrate 23. 进而，在带静电容量式触摸面板的显示装置100中，通过向配置于背光侧偏振片10和视觉辨认侧偏振片40之间的液晶面板的液晶层22通电，可以对操作者显示期望的图像。 Further, in the display device with capacitance touch panel 100, by the polarizing plate disposed on the backlight side polarizing plate 10 and the side visibility of the liquid crystal layer 22 between the energized liquid crystal panel 40, a desired image can be displayed to the operator .
[0082] 需要说明的是，作为薄膜晶体管基板21及滤色片基板23，可以使用已知的基板。 [0082] Note that, as a thin film transistor substrate 21 and the color filter substrate 23, a known substrate may be used. 另外，作为液晶层22，可以使用已知的液晶层。 Further, as the liquid crystal layer 22, a known liquid crystal layer. 需要说明的是，能够用于本发明的带静电容量式触摸面板的显示装置的显示面板20并不限定于上述结构的液晶面板。 Note that, the display panel of the present invention can be used in electrostatic capacity type touch panel of the display device 20 is not limited to the above-described structure of the liquid crystal panel.
[0083][相位差膜] [0083] [retardation film]
[0084] 相位差膜30为光学补偿用的膜，其补偿液晶层22的视角依赖性、斜向观察时偏振片10、40的漏光现象，从而使带静电容量式触摸面板的显示装置100的视角特性提高。 [0084] retardation film 30 used as an optical compensation film, which compensates for the viewing angle dependence of the liquid crystal layer 22, a polarizer 10, 40 when light leakage was observed obliquely, so that the electrostatic capacity type touch panel display device 100 viewing angle characteristics are improved.
[0085]另外，作为相位差膜30，例如可以使用已知的纵向单向拉伸膜、横向单向拉伸膜、纵横双向拉伸膜、或使液晶性化合物聚合而成的相位差膜。 [0085] Further, as the retardation film 30, e.g., using known longitudinally uniaxially stretched film, a uniaxially stretched film laterally, vertically and horizontally stretch film, or a retardation film so that the liquid crystal compound is polymerized. 具体而言，作为相位差膜30，没有特殊限定，可列举采用已知的方法将环烯烃聚合物等热塑性树脂成膜而成的热塑性树脂膜进行单向拉伸或双向拉伸而成的膜。 Specifically, as the retardation film 30 is not particularly limited, and known methods include the use of uniaxially or biaxially stretching a thermoplastic resin film of cycloolefin polymer film forming thermoplastic resin such as were made . 另外，作为市售的热塑性树脂膜，可列举例如“Esushina”、“SCA40” (积水化学工业制造)、“ZeonorFilm” (日本瑞翁制造)、“ART0NFILM “ (JSR制造)等(均为商品名)。 Further, examples of commercially available thermoplastic resin film, for example, include "Esushina", "SCA40" (manufactured by Sekisui Chemical), "ZeonorFilm" (manufactured Zeon), "ART0NFILM" (JSR) and the like (all trade name).
[0086] 另外，也可以在相位差膜30的两表面形成后述的硬涂层。 [0086] Further, both surfaces may be in the retardation film 30 is formed on said hard coat layer.
[0087] 需要说明的是，就相位差膜30而言，可以按照使得沿叠层方向观察，相位差膜30的慢轴和偏振片10、40的偏振膜的透射轴成例如平行或正交的方式进行配置。 [0087] Note that, the retardation film 30, there can be such that the stacking direction according to the observation, the slow axis of the retardation film 30 and the polarizing film 10, 40 polarizer transmission axis parallel or perpendicular to e.g. It is configured.
[0088][视觉辨认侧偏振片] [0088] [visual recognition side polarizing plate]
[0089] 作为视觉辨认侧偏振片40，没有特殊限定，例如可以使用由2片保护膜(背光侧保护膜41及覆盖层侧保护膜43)夹持偏振膜42而成的偏振片40。 [0089] As a visual recognition side polarizing plate 40 is not particularly limited, for example, can be used by two protective films (backlight side protective film 41 and protective film 43 side of the cover layer) 42 made of a polarizing film sandwiched polarizing plate 40.
[0090][第二导电层] [0090] [Second conductive layer]
[0091] 第二导电层50形成于基材60的一侧(显示面板20侧)的表面，位于视觉辨认侧偏振片40和基材60之间，更具体而言，位于视觉辨认侧偏振片40的覆盖层侧保护膜43和基材60之间。 [0091] The second conductive layer 50 is formed on the side of the substrate 60 (the display panel 20 side) of the surface, located between the visual recognition side polarizing plate 40 and the substrate 60, more specifically, located in visual recognition side polarizing plate covering layer 40 between the side of the protective film 43 and the substrate 60. 进而，第二导电层50与夹着基材60在叠层方向上隔离开地设置的第一导电层70共同构成静电容量式的触控传感器。 Further, the second conductive layer 50 sandwiched between the substrate and the first conductive layer 60 in the laminating direction provided to isolate 70 together constitute the capacitance-type touch sensor.
[0092] 这里，第二导电层50只要是在可见光范围具有透射率且具有导电性的层即可，没有特别地限定，可以使用下述材料来形成:导电性聚合物；银糊、聚合物糊等导电性糊；金、铜等的金属胶体；氧化铟锡(掺锡氧化铟:ΙΤ0)、掺锑氧化锡(ATO)、掺氟氧化锡(FTO)、掺铝氧化锌(AZO)、镉氧化物、镉-锡氧化物、氧化钛、氧化锌等金属氧化物；碘化铜等金属化合物；金(Au)、银(Ag)、铀(Pt)、钯(Pd)等金属；银纳米线、碳纳米管(CNT)等无机或有机类纳米材料。 [0092] Here, the second conductive layer 50 as long as the transmittance in the visible range and having a conductive layer is not particularly limited, and can be formed using the following materials: conductive polymers; silver paste, polymer paste and conductive paste; gold, copper and other metal colloid; indium tin oxide (tin-doped indium oxide: ΙΤ0), antimony-doped tin oxide (ATO), fluorine-doped tin oxide (FTO), aluminum-doped zinc oxide (AZO), cadmium oxide, cadmium - tin oxide, titanium oxide, zinc oxide and other metal oxides; metal compounds such as copper iodide; gold (Au), silver (Ag), uranium (Pt), palladium (Pd) and other metals; silver nanowires, carbon nanotubes (CNT) and inorganic or organic nanomaterials. 这些中，优选氧化铟锡、碳纳米管或银纳米线，从透光性及耐久性的观点来看，尤其优选氧化铟锡。 Of these, indium tin oxide, silver nanowires or carbon nanotubes, and from the translucent viewpoint of durability, particularly preferably indium tin oxide.
[0093] 需要说明的是，在使用CNT的情况下，使用的CNT可以为单壁CNT、双壁CNT、三壁以上的多壁CNT中的任意CNT，但优选直径为0.3〜lOOnm、长度为0.1〜20 μ m。 [0093] It should be noted that, in the case of using the CNT, CNT can be used as a single-walled CNT, a double-walled CNT, three or more wall multiwall CNT CNT any, but preferably has a diameter 0.3~lOOnm, length 0.1~20 μ m. 需要说明的是，从提高导电层的透明性、降低表面电阻值的观点来看，优选使用直径1nm以下，长度I〜10 μ m的单壁CNT或双壁CNT。 It should be noted, improving the transparent conductive layer, the viewpoint of decreasing the surface resistance value, it is preferable to use a diameter 1nm or less in length I~10 μ m single-walled or double-walled CNT CNT. 另外，优选CNT聚集体中尽可能不含有无定形碳、催化剂金属等杂质。 Further, CNT aggregates preferably contain as amorphous carbon, metal catalyst and other impurities.
[0094][第一导电层] [0094] [a first conductive layer]
[0095] 第一导电层70形成于基材60的另一侧(覆盖层80侧)的表面，相比于第二导电层50位于覆盖层80侧，更具体而言，位于基材60和覆盖层80之间。 [0095] The first conductive layer 70 is formed on the other side of the substrate 60 (the cover layer 80 side) of the surface, compared to the second conductive layer 50 located on the side cover layer 80, more specifically, the substrate 60 is located and the cover layer 80. 另外，第一导电层70与夹着基材60在叠层方向上隔离开地设置的第二导电层50共同构成静电容量式的触控传感器。 Further, the first conductive layer 70 sandwiched between the substrate and the second conductive layer 60 in the laminating direction provided to isolate 50 together constitute the capacitance-type touch sensor.
[0096] 另外，第一导电层70可使用与第二导电层50同样的材料形成。 [0096] In addition, the first conductive layer 70 may be formed using the same material as the second conductive layer 50.
[0097] 这里，就构成静电容量式的触控传感器的导电层50、70而言，多进行图案化而形成。 [0097] Here, the conductive layers 50, 70 constitute the capacitance-type touch sensor, the multi-patterned and formed. 具体而言，构成静电容量式触控传感器的第一导电层70及第二导电层50可以由以下图案所形成:在相对配置并沿叠层方向观察时会形成直线格子、波浪线格子或钻石状格子等的图案。 Specifically, an electrostatic capacity type touch sensor 70 and the first conductive layer of the second conductive layer 50 may be formed of the following pattern: When disposed opposite the stacking direction and observe the formation of linear lattice, the diamond lattice or wavy lines shaped like a lattice pattern. 需要说明的是，波浪线格子是指，在交叉部间至少具有一个弯曲部的形状。 It notes that wavy line means a lattice, at least between the cross-section shape having a curved portion.
[0098] 进而，对于在基材60的各表面上第一导电层70及第二导电层50的形成没有特殊限定，可以使用溅射法、真空蒸镀法、CVD法、离子镀法、溶胶凝胶法、涂敷法等来进行。 [0098] Further, the surface of the substrate 60 on each of the first conductive layer 70 is formed and the second conductive layer 50 is not particularly limited, a sputtering method, a vacuum deposition method, CVD method, ion plating method, a sol gel method, coating method or the like.
[0099] 需要说明的是，就第一导电层70及第二导电层50的厚度而言，例如在由ITO制成的情况下，没有特殊限定，可优选为10〜150nm、进一步优选为15〜70nm。 [0099] Note that, the thickness of the first conductive layer 70 and the second conductive layer 50, for example in the case made of ITO, is not particularly limited, may preferably 10~150nm, more preferably 15 ~70nm. 另外，第一导电层70及第二导电层50的表面电阻率没有特殊限定，可优选为100〜1000 Ω/ 口。 Further, the first conductive layer 70 and the surface resistivity of the second conductive layer 50 is not particularly limited, may preferably 100~1000 Ω / port.
[0100][具有光学膜的基材] [0100] [substrate having an optical film]
[0101] 形成有第一导电层70及第二导电层50的基材60具有:具有(2η-1) λ/4的相位差[其中，η为正整数]的光学膜62、和形成于光学膜62的两表面的硬涂层61、63。 [0101] 60 substrate formed with the first conductive layer 70 and the second conductive layer 50 has: a phase difference (2η-1) λ / 4 of the [wherein, [eta] is a positive integer] The optical film 62, and is formed in the the two surfaces 61 and 63 of the hard coat layer 62 of the optical film. 另外，基材60位于第二导电层50和第一导电层70之间，作为使用第一导电层70及第二导电层50构成的静电容量式触控传感器的绝缘层而发挥作用。 Further, the substrate 60 on the second conductive layer 50 and the first conductive layer 70, a first conductive layer 70 used as a capacitance-type touch sensor of the second insulating layer 50 composed of a conductive layer and play a role. 需要说明的是，对于基材60的光学膜62，可以按照使得沿叠层方向观察，该光学膜62的慢轴和视觉辨认侧偏振片40的偏振膜42的透射轴的夹角成给定角度的方式进行配置。 Note that, the optical film 62 of the substrate 60, can be given to the stacking direction in accordance with such observation, the optical film 62 and the slow axis of the polarizing film is visually recognized side polarizing plate transmission axis 40 of the angle 42 configure an angular manner.
[0102] 这里，所述“给定角度”是指能够将作为显示面板20的液晶面板侧起通过视觉辨认侧偏振片40向覆盖层80侧进发的直线偏振光转变为圆偏振光或椭圆偏振光，在操作者佩戴了偏光眼镜的状态下也能够视觉辨认到显示内容的角度。 [0102] Here, the "given angle" refers to the ability to play as a liquid crystal display panel side panel 20 by visual recognition side polarizing plate 40 to the cover layer 80 side moving linearly polarized light into circularly polarized light or elliptically polarized under light, the operator of the state of wearing polarized glasses can be visually recognized to angle display content. 具体而言，给定角度为约45°左右，更具体而言为45° ±10°、优选为45° ±3°、更优选为45° ±1°、进一步优选为45° ±0.3°的范围内的角度。 Specifically, the given angle is about 45 °, more specifically of 45 ° ± 10 °, preferably 45 ° ± 3 °, more preferably 45 ° ± 1 °, more preferably of 45 ° ± 0.3 ° angle range.
[0103] 另外，所述“具有(2η-1) λ/4的相位差[其中，η为正整数]”是指，对沿叠层方向透过了光学膜62后的光赋予的相位差(延迟Re)为光波长λ的约(2η-1)/4倍[其中，η为正整数，优选为I]。 [0103] In addition, the "phase difference (2η-1) λ / 4 of the [wherein, [eta] is a positive integer]" refers to the stacking direction of the optical retardation film 62 through the light after imparting of (delayed Re) of the optical wavelength λ of approximately (2η-1) / 4 times [wherein, [eta] is a positive integer, preferably I]. 具体而言，在要透射的光的波长范围为400nm〜700nm的情况下，Re为波长λ 的约(2η-1)/4 倍是指:Re 为(2η_1) λ/4±65ηπκ优选为(2η_1) λ/4±30ηπκ更优选为(2η-1) λ/4±10ηηι的范围。 Specifically, in the wavelength range of light to be transmitted is the case 400nm~700nm, Re [lambda] is a wavelength of approximately (2η-1) / 4 times the mean: Re is (2η_1) λ / 4 ± 65ηπκ preferably ( 4 ± range 2η_1) λ / 4 ± 30ηπκ more preferably (2η-1) λ / 10ηηι of. 需要说明的是，Re为式:Re = (nx_ny) Xd[式中，ηχ为膜面内的慢轴方向的折射率，ny为膜面内的与慢轴在面内垂直的方向的折射率，d为光学膜62的厚度]所示的面内方向延迟。 Note that, Re is the formula: Re = (nx_ny) Xd [wherein, ηχ refractive index of the slow axis in the film plane, ny is a refractive index in a direction perpendicular to the plane of the slow axis within the film plane , d is the thickness of the delay] in-plane direction of the optical film 62 shown.
[0104]另外，如图1所示，在该例的带静电容量式触摸面板的显示装置100中，构成静电容量式的触控传感器的第一导电层70和第二导电层50夹着具有光学膜62的基材60相对时，如果基材60的厚度均一，则能够将第一导电层70和第二导电层50之间的距离保持恒定，从而使触控传感器的检测灵敏度良好。 [0104] Further, as shown, in the case of the display device 100 with the electrostatic capacity type touch panel, an electrostatic capacity type touch sensor 70 of the first conductive layer and the second conductive layer 50 having a sandwich the optical film 62 relative to the substrate 60, if the thickness of the base plate 60 uniform, it is possible the distance between the first conductive layer 50 and the second conductive layer 70 is kept constant, so that good detection sensitivity of the touch sensor.
[0105][光学膜] [0105] [Optical Film]
[0106] 作为光学膜62，可以使用通过将热塑性树脂成膜及拉伸而得到的实施了取向处理的膜。 [0106] As the optical film 62 may be used by forming a thermoplastic resin and stretching the film was subjected to the orientation treatment.
[0107] 这里，作为热塑性树脂的拉伸方法，可以使用已知的拉伸方法，但优选采用斜向拉伸。 [0107] Here, as a method of stretching a thermoplastic resin, may be used a known stretching method, it is preferable to use oblique stretching. 这是由于，就光学膜62而言，在需要以使光学膜62的慢轴和视觉辨认侧偏振片40的偏振膜42的透射轴成给定角度交叉的方式叠层时，实施了常规的拉伸处理(纵向拉伸处理或横向拉伸处理)后的拉伸膜的光轴的朝向为与膜的宽度方向平行的方向或与宽度方向正交的方向。 This is because, on the optical film 62, in the need to make the optical film and the slow axis 62 of the visual recognition side polarizing plate 40 of the polarizing film transmission axis 42 at a given angle to intersect the laminate, the implementation of a conventional the optical axis of the stretched film stretching process (longitudinal stretching transverse stretching treatment or treatment) toward the film width direction is the direction parallel to the width direction or a direction orthogonal. 因此，为了使该一般的拉伸膜和偏振膜以给定角度叠层，需要将拉伸膜裁切成斜向单页(斜®枚葉)。 Therefore, in order to make the general stretched film and a polarizing film laminated at a given angle, you need to obliquely stretched film was cut into a single page (oblique ® gold leaf). 但是，就经过斜向拉伸后的膜而言，由于其光轴的朝向为相对于膜的宽度方向倾斜的方向，因此如果使用斜向拉伸膜作为光学膜62，则可以通过卷对卷而容易地制造包含视觉辨认侧偏振片40及光学膜62的叠层体。 But, after the stretched film obliquely, since the direction of its optical axis with respect to the film width direction oblique direction, so if using the obliquely stretched film as the optical film 62, by the roll to roll manufactured readily recognizable visual side polarizing plate comprising the optical film 40 and laminate 62. 需要说明的是，在通过卷对卷来制造包含视觉辨认侧偏振片40及光学膜62的叠层体的情况下，对作为光学膜62使用的斜向拉伸膜的取向角进行调整、使得形成了叠层体时光学膜62的慢轴与偏振膜42的透射轴成上述给定角度即可。 It should be noted that, in the case of manufactured by Roll contains visual recognition side polarizing plate 40 and the optical film laminate 62, the alignment angle obliquely stretched film used as an optical film 62 is adjusted such that when forming the optical film laminate 62 and the slow axis 42 of the polarizing film transmission axis to said given angle.
[0108] 作为斜向拉伸的方法，可以使用日本特开昭50-83482号公报、日本特开平2-113920号公报、日本特开平3-182701号公报、日本特开2000-9912号公报、日本特开2002-86554号公报、日本特开2002-22944号公报等中记载的方法。 [0108] As oblique stretching method, you can use the Japanese Unexamined Patent Publication No. 50-83482, Japanese Unexamined Patent Publication No. 2-113920, Japanese Unexamined Patent Publication No. 3-182701, Japanese Unexamined Patent Publication No. 2000-9912, the method described in Japanese Unexamined Patent Publication No. 2002-86554, Japanese Unexamined Patent Publication No. 2002-22944 and the like. 斜向拉伸所使用的拉伸机没有特别限制，可以使用以往公知的拉幅式拉伸机。 Oblique stretching stretching machine used is not particularly limited, and conventionally known tenter type stretching machine. 另外，拉幅式拉伸机包括横向单向拉伸机、同步双向拉伸机等，只要是可以连续地斜向拉伸长条的膜的拉伸机即可，没有特殊限制，可以使用各种类型的拉伸机。 In addition, a tenter stretching machine comprises a transverse uniaxial stretching machine, simultaneous biaxial stretching machine, as long as it can be continuously long obliquely stretched film stretching machine is not particularly limited, and each type stretcher.
[0109] 另外，就斜向拉伸热塑性树脂时的温度而言，如果将热塑性树脂的玻璃化转变温度设为Tg，则优选为Tg-30°c〜Tg+60°C之间、更优选为Tg-10°c〜Tg+50°C之间。 [0109] In addition, the obliquely stretched thermoplastic resin when the temperature, if the glass transition temperature of the thermoplastic resin, a Tg of set, it is preferably between Tg-30 ° c~Tg + 60 ° C, more preferably between Tg-10 ° c~Tg + 50 ° C. 另外，拉伸倍率通常为1.01〜30倍、优选为1.01〜10倍、更优选为1.01〜5倍。 Further, the draw ratio is generally 1.01~30 times, preferably 1.01~10 times, more preferably 1.01~5 times.
[0110] 作为能够用于光学膜62的形成的热塑性树脂，没有特殊限定，可列举:环烯烃聚合物、聚碳酸酯、聚芳酯、聚对苯二甲酸乙二醇酯、三乙酸纤维素、聚砜、聚醚砜、聚苯硫醚、聚酰亚胺、聚酰胺酰亚胺、聚乙烯、聚丙烯、聚氯乙烯、聚苯乙烯、聚烯烃、聚乙烯醇、聚氯乙烯聚甲基丙烯酸甲酯等。 [0110] As the thermoplastic resin can be used for forming the optical film 62 is not particularly limited, and include: a cycloolefin polymer, polycarbonate, polyarylate, polyethylene terephthalate, cellulose triacetate , polysulfone, polyether sulfone, polyphenylene sulfide, polyimide, polyamide-imide, polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyolefin, polyvinyl alcohol, polyvinyl chloride poly A yl methacrylate. 其中，优选环烯烃聚合物、聚碳酸酯、聚对苯二甲酸乙二醇酯及三乙酸纤维素，由于相对介电常数低，因此进一步优选环烯烃聚合物，由于相对介电常数及吸水率两者均低，因此特别优选氨基、羧基、羟基等不具有极性基团的环烯烃聚合物。 Among these, cycloolefin polymer, polycarbonate, polyethylene terephthalate, cellulose triacetate and, due to the relatively low dielectric constant, thus further preferred cycloolefin polymer, since the relative dielectric constant and water absorption both low, it is particularly preferably an amino, carboxyl, hydroxyl and other cyclic olefin polymer having no polar group.
[0111] 作为环烯烃聚合物，可列举降冰片烯类树脂、单环的环状烯烃类树脂、环状共轭二烯类树脂、乙烯基脂环式烃类树脂，及它们的氢化物等。 [0111] As cyclic olefin polymers include norbornene resin, monocyclic cyclic olefin resin, cyclic conjugated diene resin, vinyl alicyclic hydrocarbon resin, and hydrogenated product thereof, etc. . 这些中，由于透明性和成型性良好，因此可以优选使用降冰片烯类树脂。 Among these, since the transparency and good moldability, it can be preferably used a norbornene-based resin.
[0112] 作为降冰片烯类树脂，可列举:具有降冰片烯结构的单体的开环聚合体或者具有降冰片烯结构的单体与其它单体的开环共聚物或它们的氢化物、或者是具有降冰片烯结构的单体的加成聚合物或者具有降冰片烯结构的单体与其它单体的加成共聚物或它们的氢化物等。 [0112] As the norbornene resin include: a drop norbornene structure monomer ring-opening polymer or a drop with other monomers norbornene structure or a ring-opening copolymer hydride, or reducing a monomer having norbornene structure or an addition polymer having an addition copolymer of a norbornene structure with other monomers and hydrogenation products thereof, or the like.
[0113] 作为市售的环烯烃聚合物，例如有:“Topas”(Ticona制造)、“ART0N”(JSR制造)、“ZE0N0R”及“ZEONEX” (日本瑞翁制造)、“Apel” (三井化学制造)等(均为商品名)。 [0113] The cycloolefin polymer commercially available, for example: "Topas" (Ticona manufactured), "ART0N" (JSR manufactured), "ZE0N0R" and "ZEONEX" (manufactured Zeon), "Apel" (Mitsui Chemicals Co.) and the like (all trade names). 将这样的环烯烃类树脂成膜，可得到热塑性树脂制的光学膜62。 Thus forming a cyclic olefin resin, a thermoplastic resin is obtained optical film 62. 成膜中，可适宜使用溶剂流延法、熔融挤出法等公知的成膜方法。 Film formation can be preferably used a solvent casting method, a known method such as melt extrusion film formation method. 另外，成膜后的环烯烃类树脂膜也有市售品，例如有“Esushina”、“SCA40”(积水化学工业制造)、“ZeonorFilm” (日本瑞翁制造)、“ART0NFILM”(JSR制造)等(均为商品名)。 Further, the cycloolefin resin film after the film also are commercially available, for example, "Esushina", "SCA40" (manufactured by Sekisui Chemical), "ZeonorFilm" (manufactured Zeon), "ART0NFILM" (JSR manufactured) (all trade names). 拉伸前的热塑性树脂膜通常为未拉伸的长条的膜，所述长条是指相对于膜的宽度至少具有5倍左右以上的长度，优选具有10倍或其以上的长度，具体来说是指具有可被卷绕成卷状而保管或搬运程度的长度的膜。 The thermoplastic resin film before stretching is usually long unstretched film, the strip means with respect to the width of the film at least having a length of about 5 times or more, preferably 10 or more times the length, to the specific He said means having to be wound into a roll while keeping the length or extent of a film handling.
[0114] 上述热塑性树脂的玻璃化转变温度优选为80°C以上、更优选为100〜250°C。 [0114] The thermoplastic resin has a glass transition temperature of preferably above 80 ° C, more preferably 100~250 ° C. 另夕卜，热塑性树脂的光弹性系数的绝对值优选为1X 10 12Pa1以下，更优选为7X10 12Pa 1W下，特别优选为4X 10 12Pa 1WTc3在将双折射设为Δη、应力设为σ时，光弹性系数C为C=An/σ表示的值。 Another Xi Bu, absolute value of photoelastic coefficient of the thermoplastic resin is 1X 10 12Pa1 or less, and more preferably at 7X10 12Pa 1W, particularly preferably 4X 10 12Pa 1WTc3 in the birefringent set Δη, when stress is set to σ, light elastic coefficient C is C = An / σ value represented. 使用光弹性系数在这样范围的透明的热塑性树脂时，可以减少光学膜的面内方向延迟Re的偏差。 When using the photoelastic coefficient of the transparent thermoplastic resin such range, it can reduce the in-plane direction of the optical film of Re delay variations. 进一步，在将这样的光学膜应用于使用了液晶面板的显示装置的情况下，可以抑制显示装置的显示画面端部的色调发生变化的现象。 Further case, the optical film is applied to such a display device using a liquid crystal panel can be suppressed tone display screen of the display device end change phenomenon.
[0115] 需要说明的是，在用于形成光学膜62的热塑性树脂中，也可以配合其它配合剂。 [0115] It should be noted that, in the thermoplastic resin for forming an optical film 62, may be blended with other agents. 作为配合剂，没有特别地限定，可以列举:层状晶体化合物；无机微粒；抗氧化剂、热稳定剂、光稳定剂、耐候稳定剂、紫外线吸收剂、近红外线吸收剂等稳定剂；润滑剂、增塑剂等树脂改性剂；染料、颜料等着色剂；抗静电剂等。 As a complexing agent, is not particularly limited, and may include: a layered crystal compound; inorganic fine particles; antioxidants, thermal stabilizers, light stabilizers, weathering stabilizers, ultraviolet absorbers, stabilizers such as a near infrared absorber; a lubricant, plasticizers and other resin modifier; dyes, pigments and other colorants; antistatic agents. 这些配合剂可以单独使用或将两种以上组合使用，其配合量可以在不损害本发明的目的的范围内适当选择。 These complexing agents may be used alone or in combination of two or more, the amount thereof may be suitably selected within a range not to impair the object of the present invention.
[0116] 作为抗氧化剂，可以列举:酚类抗氧化剂、磷类抗氧化剂、硫类抗氧化剂等，其中优选酚类抗氧化剂，尤其优选烷基取代酚类抗氧化剂。 [0116] Examples of the antioxidant include: phenolic antioxidant, phosphorus antioxidant, sulfur antioxidant and the like, in which preferable phenolic antioxidants, particularly preferably an alkyl-substituted phenolic antioxidants. 通过配合这些抗氧化剂，可以防止由膜成型时的氧化劣化等引起的膜的着色、强度降低，而不会降低透明性、低吸水性等。 By blending these antioxidants, colored film can be prevented from deterioration due to oxidation during the film formation, the strength decreased, without lowering the transparency, low water absorption. 这些抗氧化剂可以分别单独使用或将两种以上组合使用，其配合量可以在不损害本发明的目的的范围内适当选择，但相对于热塑性树脂100质量份通常为0.001〜5质量份、优选为0.01〜I质量份。 These antioxidants may be used singly or in combination of two or more, the blending amount may be suitably selected within a range without impairing the object of the present invention, but with respect to 100 parts by mass of the thermoplastic resin is usually 0.001~5 parts by mass, preferably 0.01~I parts by mass.
[0117] 作为无机微粒，优选具有0.7〜2.5 μ m的平均粒径和1.45〜1.55的折射率的微粒。 [0117] As the inorganic fine particles, preferably fine particles having an average particle size of 0.7~2.5 μ m and a refractive index of 1.45~1.55. 具体可以列举:粘土、滑石、二氧化硅、沸石、水滑石，其中，优选二氧化硅、沸石及水滑石。 Specific examples thereof include: clay, talc, silica, zeolite, hydrotalcite, wherein, preferably silica, zeolite and hydrotalcite. 无机微粒的添加量没有特别地限制，相对于热塑性树脂100质量份，通常为0.001〜10质量份、优选为0.005〜5质量份。 Amount of the inorganic fine particles is not particularly limited with respect to 100 parts by mass of the thermoplastic resin, usually 0.001~10 mass parts, preferably 0.005~5 parts by mass.
[0118] 作为润滑剂，可以列举:烃类润滑剂；脂肪酸类润滑剂；高级醇类润滑剂；脂肪酸酰胺类润滑剂；脂肪酸酯类润滑剂；金属皂类润滑剂。 [0118] Examples of the lubricant may include: hydrocarbon lubricants; fatty acid-based lubricant; lubricant higher alcohols; fatty acid amide lubricants; fatty acid ester lubricant; metal soap lubricant. 其中，优选烃类润滑剂、脂肪酸酰胺类润滑剂及脂肪酸酯类润滑剂。 Among these, hydrocarbon lubricants, fatty acid esters, fatty acid amide lubricants and lubricant. 进一步，其中特别优选熔点为80°C〜150°C及酸值为10mgK0H/mg以下的润滑剂。 Further, particularly preferred a melting point of 80 ° C~150 ° C and an acid number of the lubricant 10mgK0H / mg or less.
[0119] 如果恪点不在80°C〜150°C内、并且酸值大于10mgK0H/mg，则可能导致雾度值增大。 [0119] If Verified point is not within 80 ° C~150 ° C, and an acid value greater than 10mgK0H / mg, may cause haze value increases.
[0120] 进一步，被用作光学膜62的拉伸膜的厚度例如为5〜200 μ m左右是适当的，优选为20〜100 μ m。 [0120] Further, the optical thickness of the film 62 is used as a stretched film, for example, of about 5~200 μ m is appropriate, preferably 20~100 μ m. 膜如果过薄，则存在强度不足、或延迟值不足的隐患，如果过厚，则存在透明性下降、或难以获得目标延迟值的隐患。 If the film is too thin, the strength is insufficient, inadequate or delayed there is hidden value, if it is too thick, there is transparency decrease or delay difficult to obtain the target value of the hidden dangers.
[0121]另外，就被用作光学膜62的拉伸膜而言，优选膜内残留的挥发性成分的含量为100质量ppm以下。 [0121] Further, the stretched film is used as an optical film 62, the content of the residual volatile component is preferably film ppm 100 is less by mass. 挥发性成分含量在上述范围的拉伸膜即使经长时间使用也不会发生显示不均，光学特性的稳定性优异。 Volatile ingredients even after prolonged use will not happen display unevenness in the stretched film above range, excellent stability of the optical characteristics. 在此，挥发性成分是指热塑性树脂中微量含有的分子量为200以下的相对低沸点的物质，例如可以列举:将热塑性树脂聚合后残留的残留单体、溶剂等。 Here, the volatile component refers to a thermoplastic resin containing a small amount of a relatively low molecular weight material boiling below 200 includes, for example: after the thermoplastic resin to polymerize the remaining residual monomer, solvent or the like. 可以通过使用气相色谱对热塑性树脂进行分析来对挥发性成分的含量进行定量。 It can be quantified on the content of the volatile constituents by gas chromatography analysis of the thermoplastic resin.
[0122] 需要说明的是，作为获得挥发性成分含量在100质量ppm以下的拉伸膜的方法，例如可以列举:(a)对挥发性成分含量在100质量ppm以下的未拉伸膜进行斜向拉伸的方法、(b)使用挥发性成分含量大于100质量ppm的未拉伸膜，在斜向拉伸工序中或拉伸后进行干燥来减少挥发性成分含量的方法等。 [0122] Note that, to obtain a stretched film having a nonvolatile content mass ppm 100 in a method, for example, may include: (a) a volatile component content of the unstretched film mass ppm 100 be oblique stretching method, (b) using a nonvolatile content greater than 100 ppm by mass of the unstretched film, and drying to reduce volatile component content and other methods after stretching or obliquely stretching step. 在这些方法中，为了得到挥发性成分含量进一步降低的拉伸膜，优选(a)方法。 In these methods, in order to obtain a stretched film having a nonvolatile content is further reduced, preferably (a) method. 在(a)方法中，为了得到挥发性成分含量为100质量ppm以下的未拉伸膜，优选对挥发性成分含量在100质量ppm以下的树脂进行熔融挤出成型。 In the method (a) in order to obtain a nonvolatile content of 100 ppm by mass or less of the unstretched film, preferably having a nonvolatile content of 100 ppm by mass or less in the resin melt extrusion.
[0123] 此外，被用作光学膜62的拉伸膜的饱和吸水率优选为0.01质量％以下，更优选为0.007质量％以下。 [0123] Further, the stretched film is used as the optical film 62 of the saturated water absorption is preferably 0.01 mass% or less, preferably 0.007 mass% or less. 如果饱和吸水率大于0.01质量％，则可能由于使用环境导致拉伸膜产生尺寸变化而产生内部应力。 If the saturated water absorption of more than 0.01% by mass, it may result in the use environment to produce dimensional changes stretched film internal stress. 另外，在例如作为显示面板20使用了反射型液晶面板的情况下，存在发生黑显示局部变薄(观察到发白)等显示不均的隐患。 Further, for example, as a display panel 20 using a reflective liquid crystal panel in the case, the presence of black display occurs locally thinned (observed in white) and other display unevenness risks. 另一方面，饱和吸水率在上述范围的拉伸膜即使经过长时间使用也不会发生显示不均，光学特性的稳定性优异。 On the other hand, saturated water absorption unevenness, excellent stability of the optical properties of the stretched film in the above range even after prolonged use will not happen display.
[0124] 另外，光学膜62的饱和吸水率如果为0.0I质量％以下，则能够抑制由吸水引起的光学膜62的相对介电常数的经时变化。 [0124] In addition, the saturated water absorption of the optical film 62 is at 0.0I mass%, it is possible to suppress changes over time due to water absorption by the relative permittivity of the optical film 62. 因此，如图1所示，即使在构成静电容量式的触控传感器的第一导电层70和第二导电层50之间配置有具有光学膜62的基材60的情况下，也能够抑制光学膜62的相对介电常数的变化引起的触控传感器的检测灵敏度的变化。 Accordingly, as shown in FIG. 1, even in the case where the substrate 60 is disposed between the optical film 62 constitutes 50 capacitance type touch sensor 70 of the first conductive layer and the second conductive layer, it is possible to suppress the optical detecting variation in sensitivity relative dielectric constant film 62 due to the touch sensor changes.
[0125] 需要说明的是，拉伸膜的饱和吸水率可以通过改变用于膜的形成的热塑性树脂的种类等来进行调整。 [0125] It should be noted that the saturated water absorption of the film can be stretched thermoplastic resin film of the kind is formed to be adjusted by changing a.
[0126]另外，被用作光学膜62的拉伸膜的相对介电常数优选为2以上，优选为5以下、特别优选为2.5以下。 [0126] Further, the stretched film is used as the optical film 62 of the relative dielectric constant of preferably 2 or more, preferably 5 or less, particularly preferably 2.5 or less. 这是由于，如图1所示，在该例的带静电容量式触摸面板的显示装置100中，在构成静电容量式的触控传感器的第一导电层70和第二导电层50之间配置有具有光学膜62的基材60。 This is because, as shown in FIG. 1, the display apparatus 100 in this embodiment is an electrostatic capacity type touch panel, continuity between the capacitance-type touch sensor 70 of the first conductive layer and the second conductive layer 50 is disposed 60 has a substrate 62 having the optical film. 因此，如果减小基材60中包含的光学膜62的相对介电常数，则能够使第一导电层70和第二导电层50之间的静电容量降低，从而使静电容量式触控传感器的检测灵敏度提尚。 Thus, if the relative dielectric constant of the substrate 60 is reduced in the optical film 62 included, it is possible to make the first conductive layer 70 and second conductive layers 50 between the electrostatic capacity is reduced, so that the electrostatic capacity type touch sensor sensitivity to mention yet.
[0127][硬涂层] [0127] [hard coat layer]
[0128] 形成于光学膜62的两表面的硬涂层61、63是用于防止光学膜62的损伤、卷曲的层。 [0128] formed on both surfaces of the optical film 62 of the hard coat layer 61, 63 is used to prevent damage to the optical film 62, the curl layer. 作为用于形成硬涂层61、63的材料，优选使用在由JIS K5700规定的铅笔硬度试验中显示“HB”以上硬度的材料。 As a material for forming the hard coat layer 61, 63 is preferably used to display "HB" or more in the pencil hardness of the material by the hardness test specified in JIS K5700. 作为这样的材料，例如可以列举:有机硅类、三聚氰胺类、环氧类、丙烯酸酯类、多官能(甲基)丙烯酸类化合物等有机类硬涂层形成材料；二氧化硅等无机类硬涂层形成材料；等等。 As such a material, and examples thereof include: an organic hard coat silicone, melamine, epoxy, acrylate, polyfunctional acrylic compound (meth) material or the like; inorganic silica-based hard coating forming a layer of the material; and the like. 其中，从粘接力良好、生产性优异的观点出发，优选使用(甲基)丙烯酸酯类、多官能(甲基)丙烯酸类化合物的硬涂层形成材料。 Among these, good adhesion, excellent productivity viewpoint, it is preferable to use (meth) acrylic acid esters, hard coat polyfunctional (meth) acrylic compound-forming material. 在此，所述(甲基)丙烯酸酯是指丙烯酸酯及/或甲基丙烯酸酯，所述(甲基)丙烯酸是指丙烯酸及/或甲基丙烯酸。 Here, the (meth) acrylate means acrylate and / or methacrylate, the (meth) acrylic acid means acrylic acid and / or methacrylic acid.
[0129] 作为(甲基)丙烯酸酯，可以列举:分子内具有I个聚合性不饱和基团的(甲基)丙烯酸酯、具有2个聚合性不饱和基团的(甲基)丙烯酸酯、具有3个以上聚合性不饱和基团的(甲基)丙烯酸酯、分子内含有3个以上聚合性不饱和基团的(甲基)丙烯酸酯低聚物。 [0129] As the (meth) acrylic acid esters include: I a molecule having a polymerizable unsaturated group-containing (meth) acrylate having two polymerizable unsaturated group-containing (meth) acrylate, (meth) acrylate having three or more polymerizable unsaturated groups in the molecule containing three or more polymerizable unsaturated groups of (meth) acrylate oligomer. (甲基)丙烯酸酯可以单独使用，也可以使用2种以上。 (Meth) acrylates may be used alone, or two or more may be used.
[0130] 硬涂层的形成方法没有特殊限制，可如下地进行:通过浸渍法、喷雾法、斜板式涂布法(slide coating)、棒涂法、棍涂法、模涂法、凹版涂布法、丝网印刷法等公知方法将硬涂层形成材料的涂敷液涂敷于光学膜62上，在空气、氮等气体氛围中通过干燥而除去溶剂，然后涂布丙烯酸类硬涂层材料并利用紫外线、电子束等使其交联固化，或涂布有机硅类、三聚氰胺类、环氧类的硬涂层材料并使其热固化。 [0130] The method of forming the hard coat layer is not particularly limited and can be carried out as follows: by immersion method, spraying method, coating method swash plate (slide coating), bar coating method, a rod coating method, a die coating method, gravure coating method, screen printing method or other known methods to a hard coat layer coating solution of the coating material on the optical film 62, in the air, such as nitrogen gas atmosphere and the solvent is removed by drying, and then coated with an acrylic hard coating material and the use of ultraviolet light, electron beam crosslinked cured coating or silicone, melamine, epoxy-based hard coating material and thermally cured. 由于在干燥时，容易产生涂膜的膜厚不均，因此优选调整吸气和排气以使涂膜外观不受损，进行控制使得涂膜整体均匀。 Because when dry, prone to uneven thickness of the coating, it is preferable to adjust the intake and exhaust to make the appearance of the coating is not damaged, is controlled so that the film as a whole uniform. 在使用可通过紫外线固化的材料的情况下，通过进行紫外线照射使涂布后的硬涂层形成材料固化的照射时间通常在0.01秒〜10秒的范围，能量射线源的照射量以紫外线波长365nm下的累积曝光量计，通常在40mJ/cm2〜1000mJ/cm2的范围。 In the case of using the ultraviolet curable material, the ultraviolet irradiation through the hard coat layer forming coating material is cured after an irradiation time of 0.01 seconds is typically in the range of ~ 10 seconds, the amount of energy irradiated with ultraviolet ray source wavelength of 365nm cumulative exposure meter under, usually in the range 40mJ / cm2~1000mJ / cm2 of. 另外，紫外线的照射例如可以在氮及氩等不活泼气体中进行，也可以在空气中进行。 In addition, ultraviolet irradiation, for example, can be carried out in nitrogen and argon and other inert gases can also be carried out in air.
[0131] 需要说明的是，在设置硬涂层61、63的情况下，出于提高与硬涂层61、63之间的粘接性的目的，可以对被用作光学膜62的拉伸膜实施表面处理。 [0131] Note that, in the case of a hard coat layer 61, 63, for the purpose of improving the adhesiveness between the hard coat layer 61, 63, may be used as the optical film 62 is stretched surface treatment film. 作为该表面处理，可以列举:等离子体处理、电晕处理、碱处理、涂敷处理等。 Examples of the surface treatment include: plasma treatment, corona treatment, alkali treatment, coating treatment and so on. 尤其是在光学膜62由热塑性降冰片烯类树脂形成的情况下，通过采用电晕处理，可以使由上述热塑性降冰片烯类树脂形成的光学膜62与硬涂层61、63之间的密合变得强固。 Especially in the case where the optical film 62 made of a thermoplastic norbornene-based resin, by corona treatment, the adhesion of the thermoplastic norbornene resin is reduced by the formation of an optical film with the hard coat layer 62 between 61 and 63 together becoming strong. 作为电晕处理条件，优选电晕放电电子的照射量为I〜1000W/m2/min。 As a condition of corona treatment, preferably a corona discharge amount of the electron irradiation is I~1000W / m2 / min. 上述电晕处理后的光学膜62相对于水的接触角优选为10〜50°。 After the above-mentioned optical film 62 with respect to the corona treatment the contact angle of water is preferably 10~50 °. 另外，硬涂层形成材料的涂敷液可以在刚进行完电晕处理后立即涂敷，也可以在消除静电后进行涂敷，但由于在消除静电后进行涂敷时硬涂层61、63的外观变得良好，因此优选。 Further, the coating liquid forming a hard coat material may be applied immediately in the just finished corona treatment, can also be applied after the elimination of static electricity, but after the elimination of static electricity when the hard coat layer is coated 61,63 appearance becomes good, which is preferable.
[0132] 形成于光学膜62上的硬涂层61、63的平均厚度通常为0.5 μ m以上且30 μ m以下，优选为2 μπι以上且15 μπι以下。 The average thickness of [0132] the optical film 62 is formed on the hard coat layer 61, 63 is typically 0.5 μ m or more and 30 μ m or less, and more preferably 2 μπι 15 μπι or less. 硬涂层61、63的厚度如果比上述范围厚，则在视觉辨认性方面可能会存在问题，如果过薄则存在耐擦伤性变差的可能性。 If the thickness of the hard coating layer 61, 63 is thicker than the above range, there may be a problem in terms of visibility, the possibility of deterioration of the scratch resistance if there is too thin.
[0133] 硬涂层61、63的雾度为0.5 %以下，优选为0.3 %以下。 Haze [0133] The hard coat layer 61, 63 is 0.5% or less, preferably 0.3% or less. 通过在这样的雾度值范围，可以使得硬涂层61、63适合用在带触摸面板的显示装置100内。 By such a haze value range, a hard coat layer 61, 63 can be made suitable for use in a display device with a touch panel 100.
[0134] 需要说明的是，在不脱离本发明的要点的范围内，在硬涂层形成材料中也可以添加有机粒子、无机粒子、光敏剂、阻聚剂、聚合引发助剂、流平剂、润湿性改良剂、表面活性剂、增塑剂、紫外线吸收剂、抗氧化剂、抗静电剂、硅烷偶联剂等。 [0134] It should be noted that, without departing from the scope of the gist of the present invention, the hard coat layer forming material may be added to organic particles, inorganic particles, photosensitizers, polymerization inhibitors, polymerization initiator aids, leveling agents , wettability improver, a surfactant, a plasticizer, an ultraviolet absorber, an antioxidant, an antistatic agent, a silane coupling agent.
[0135] 需要说明的是，在本发明的带静电容量式触摸面板的显示装置中，基材60也可以不具有硬涂层61、63，另外，也可以代替硬涂层61、63、或除了硬涂层61、63以外，还具有折射率匹配层、低折射率层等光学功能层。 [0135] Note that, in the display device with capacitance touch panel of the present invention, the substrate 60 may not have a hard coat layer 61, 63, is also possible to replace the hard coat layer 61 and 63, or In addition to the hard coat layer 61, 63, it has the optical function of refractive index matching layer, a low refractive index layer.
[0136][折射率匹配层] [0136] [index matching layer]
[0137] 这里，折射率匹配层是为了防止由在基材60的光学膜62和在基材60上形成的导电层50、70之间、特别是光学膜62和第一导电层70之间产生的折射率之差而引发的在层界面处的光反射，而在例如光学膜62和导电层50、70之间(界面)设置的层。 [0137] Here, in order to prevent the refractive index matching layer is between the substrate 62 between the optical film 60 and the conductive layers 50, 70 are formed on a substrate 60, particularly an optical film 62 and the first conductive layer 70 the difference in refractive index layer is generated caused by the light reflection layer interface, e.g., between the optical film and the conductive layers 50, 70 and 62 (interface) settings. 作为折射率匹配层，可以列举:包含交替配置的多个高折射率膜及低折射率膜的层、包含氧化锆等金属的树脂层。 As an index matching layer, may include: a plurality of alternately disposed, contain high refractive film and the low refractive index film layer, a metal such as zirconia containing resin layer. 即使光学膜62和导电层50、70之间的折射率相差较大，也可以通过在光学膜62与导电层50、70之间且与导电层50、70邻接配置的折射率匹配层来防止在基材60的设置有导电层50、70的区域和未设置导电层50、70的区域的反射率发生大幅变化。 Even if the refractive index of the optical film 62 and the conductive layers 50, 70 between the large difference may be between the optical film 62 and the conductive layer and the conductive layer 50, 70, 50, 70 are disposed adjacent to a refractive index matching layer to prevent 60 are provided in the base region of the conductive layer and the conductive layer is not provided reflectance region 50, 70 50, 70 change significantly.
[0138][低折射率层] [0138] [low-refractive index layer]
[0139] 低折射率层是出于防止光反射的目的而设置的层，例如可以设置在硬涂层61、63上。 [0139] low refractive index layer is a layer for the purpose of preventing light reflection provided, for example, may be provided on the hard coat layer 61, 63. 在设置于硬涂层61、63上的情况下，低折射率层是指具有的折射率低于硬涂层61、63的折射率的层。 Under Settings on the hard coat layer 61, 63, the low refractive index layer is a hard coat layer having a refractive index lower than the refractive index layers 61, 63. 低折射率层的折射率在23°C、波长550nm下优选在1.30〜1.45的范围，更优选在1.35〜1.40的范围。 Refractive index of the low refractive index layer at 23 ° C, at a wavelength of 550nm in a range of 1.30~1.45, preferably in the range of more preferably 1.35~1.40.
[0140]作为低折射率层，优选包含 Si02、T12, NaF, Na3AlF6, LiF、MgF2, CaF2, S1、S1x,LaF3' CeF3' Al2O3' CeO2, Nd2O3' Sb2O3' Ta2O5' ZrO2, ZnO, ZnS 等的无机化合物。 [0140] As a low refractive index layer preferably comprises Si02, T12, NaF, Na3AlF6, LiF, MgF2, CaF2, S1, S1x, LaF3 'CeF3' Al2O3 'CeO2, Nd2O3' Sb2O3 'Ta2O5' ZrO2, ZnO, ZnS, etc. inorganic compounds. 另外，无机化合物和丙烯酸树脂、氨基甲酸酯树脂、硅氧烷类聚合物等有机化合物的混合物也优选作为低折射率层形成材料使用。 Further, inorganic compounds, and a mixture of acrylic resins, urethane resins, silicone-based polymer organic compound also preferably is formed as a low-refractive index material layer. 作为一个例子，可以列举通过涂布包含紫外线固化树脂和二氧化硅中空粒子的组合物、并照射紫外线而形成的低折射率层。 As an example may be mentioned by coating an ultraviolet curable resin containing hollow particles and silica composition, the low refractive index layer is formed by irradiation with ultraviolet light. 低折射率层的膜厚优选在膜厚70nm以上且120nm以下、更优选为80nm以上且IlOnm以下。 Thickness of the low refractive index layer is preferably in a film thickness of 70nm or more and 120nm or less, and more preferably 80nm or more and less IlOnm. 如果低折射率层的膜厚超过120nm，则可能因反射色带色感、黑显示时的色彩再现性消失而导致视觉辨认性下降，有时不优选。 If the thickness of the low refractive index layer is more than 120nm, it may be due to reflection ribbon color sense, a black display color reproducibility caused by the disappearance of decreased visibility, it is not favorable.
[0141][覆盖层] [0141] [overlay]
[0142] 覆盖层80可以使用已知的构件、例如玻璃制或塑料制的相对于可见光透明的板来形成。 [0142] cover layer 80 may be a known member, such as glass or plastic plate transparent to visible light is formed.
[0143] 另外，根据带静电容量式触摸面板的显示装置100，由于在视觉辨认侧偏振片40和覆盖层80之间设置有具备具有给定相位差的光学膜62的基材60，因此可以将通过视觉辨认侧偏振片40后向覆盖层80侧进发的直线偏振光转变为圆偏振光或椭圆偏振光。 [0143] Further, according to the electrostatic capacity type touch panel display device 100, since the visual recognition side polarizing plate 40 disposed between the layer 80 and the cover 60 has a base material having a given optical retardation film 62, and therefore can be We will identify side polarizing plate 40 to the rear side of the cover layer 80 moving linearly polarized light into circularly polarized light or elliptically polarized light through visually. 因此，就带静电容量式触摸面板的显示装置100而言，即使在操作者的偏光眼镜的透射轴和视觉辨认侧偏振片40的偏振膜42的透射轴正交而形成所谓的正交尼科尔状态的情况下，操作者也可以视觉辨认到显示内容。 Thus the display device, the electrostatic capacity type with a touch panel 100, the so-called crossed Nicol formed even when the operator of the transmission axis of the polarizing glasses and the visibility of the polarizing film side polarizing plate 40 is orthogonal to the transmission axis 42 of the Seoul state case, the operator can also visually recognize the display content.
[0144] 另外，由于在带静电容量式触摸面板的显示装置100中，第二导电层50及第一导电层70两者设置于一个基材60，因此不需要另外设置用于形成第二导电层的透明基板及用于形成第一导电层的透明基板。 [0144] Further, since the display device with capacitance touch panel 100, the second conductive layer 50 and the first conductive layer 70 disposed on a substrate 60 both have no additional settings for forming the second conductive a first transparent substrate, a conductive layer and a transparent substrate for forming. 因此，可以简化触控传感器的结构，削减存在于视觉辨认侧偏振片40和覆盖层80之间的构件的数量，减薄作为显示面板20的液晶面板和覆盖层80之间的厚度。 Therefore, it can simplify the structure of the touch sensor, reducing visibility presence in the side polarizing plate 40 and the number of member 80 between the cover layer thickness is reduced 80 between the liquid crystal panel as a display panel and a cover layer 20. 其结果，能够实现显示装置100的薄型化。 As a result, it is possible to realize the display device 100 thinner. 需要说明的是，在该显示装置100中，在基材60的两面形成了导电层50、70，因此与在基材60的表面形成导电层50、70中的一者、在其它构件的表面形成导电层50、70中的另一者的情况相比，例如，可以防止在构件叠层时第一导电层70和第二导电层50的图案发生错位。 Note that, in the display device 100, on both sides of the substrate 60 is formed a conductive layer 50, 70, and thus the surface of the substrate 60 is formed of a conductive layer 50, 70 are, on the surface of the other member forming a conductive layer 50, 70 as compared to the other of the case, for example, to prevent the first conductive layer 70 and a patterned second conductive layer 50 occurs when the displacement member laminate.
[0145] 进一步，在上述示例的显示装置100中，将构成静电容量式触控传感器的第一导电层70及第二导电层50设置在了视觉辨认侧偏振片40和覆盖层80之间，因此，与将第一导电层70及第二导电层50设置在比视觉辨认侧偏振片40更靠近作为显示面板20的液晶面板侧的情况相比，即使在对装置进行了薄型化的情况下，也能够确保液晶面板和构成触控传感器的第一导电层70及第二导电层50之间的距离，从而抑制由从液晶面板侧受到的电噪声的影响而导致的触控传感器的灵敏度降低。 [0145] Further, in the display device 100 in the above example, the capacitance touch sensors constituting the first conductive layer 70 and the second conductive layer 50 is provided on the visual recognition side polarizing plate 40 and the cover layer 80, Thus, with the first conductive layer 70 and the second conductive layer 50 is provided at a visual recognition side polarizing plate 40 closer to the liquid crystal display panel as compared to a case of the side panel 20, even when the apparatus on the lower case thin , 70 can be ensured and the distance between the second conductive layer 50 of the liquid crystal panel and the first conductive layer of the touch sensor, thereby suppressing the influence of electric noise from the side of the liquid crystal panel caused by the reduced sensitivity of the touch sensor .
[0146] 另外，在显不装置100中，在第一导电层70和第二导电层50之间设置了基材60，因此能够容易地构成静电容量式触控传感器。 [0146] Further, in the apparatus 100 is not significant, the first conductive layer 70 between the conductive layer 50 and the second substrate 60 is provided, it is possible to easily form the electrostatic capacity type touch sensor. 另外，作为基材60的光学膜62，可以使用相对介电常数低、并且饱和吸水率小的膜，因此能够良好地形成静电容量式触控传感器。 Further, the optical film 62 as the substrate 60, use can be low relative dielectric constant, and the saturated water absorption of the film is small, it is possible to satisfactorily form an electrostatic capacity type touch sensor.
[0147]〈带静电容量式触摸面板的显示装置(第二实施方式)> [0147] <display device with capacitance touch panel (second embodiment)>
[0148]图2示意性地示出了按照本发明的第2带静电容量式触摸面板的显示装置的主要部分的剖面结构。 [0148] Figure 2 schematically shows a sectional structure of a display device according to the second electrostatic capacity type touch panel of the present invention, the main portion.
[0149] 这里，图2所示的带静电容量式触摸面板的显示装置200，在以下方面与前一例的带静电容量式触摸面板的显示装置100的构成不同: The display device [0149] Here, a display device with capacitance touch panel shown in FIG 2200, in the following example of the former with the electrostatic capacity type touch panel 100 constituting the difference:
[0150].第二导电层50未形成于基材60的一侧(显示面板20侧)的表面、而是形成于包含光学补偿用相位差膜30的显示面板侧基材的一侧(显示面板20侧)的表面的这一方面； [0150] The second conductive layer 50 is not formed on the side of the substrate 60 (the display panel 20 side) of the surface, but is formed on one side of the substrate side of the display panel includes an optical compensating retardation film 30 (shown this aspect of the panel 20 side) of the surface;
[0151] •第一导电层70未形成于基材60的另一侧(覆盖层80侧)的表面、而是形成于包含光学补偿用相位差膜30的显示面板侧基材的另一侧(覆盖层80侧)的表面的这一方面， [0151] • The first conductive layer 70 is not formed on the other side of the substrate 60 (the cover layer 80 side) of the surface, but on the other side is formed comprising an optical compensation retardation film 30 of the display panel side of the substrate this aspect (the cover layer 80 side) of the surface,
[0152] 在其它方面，具有与带静电容量式触摸面板的显示装置100相同的构成。 [0152] In other aspects, the display device having an electrostatic capacity type touch panel 100 is configured the same.
[0153] 这里，在包含相位差膜30的显示面板侧基材上第二导电层50及第一导电层70的形成可以利用与在带静电容量式触摸面板的显示装置100中导电层的形成中采用的相同的方法来进行。 [0153] Here, the display panel on the side of the substrate comprising a second retardation film 30 formed on the first conductive layer 50 and conductive layer 70 can be used in the display device with an electrostatic capacity type touch panel 100 is formed in the conductive layer the same method used to carry out.
[0154]另外，如图2所示，在该例的带静电容量式触摸面板的显示装置200中，构成静电容量式的触控传感器的第一导电层70和第二导电层50夹着包含相位差膜30的显示面板侧基材相对时，如果包含相位差膜30的显示面板侧基材的厚度均一，则能够将第一导电层70和第二导电层50之间的距离保持恒定，从而使触控传感器的检测灵敏度良好。 [0154] Further, as shown in the embodiment of the display device of the electrostatic capacity type touch panel 200 constituting the electrostatic capacity type touch sensor 70 of the first conductive layer and the second conductive layer 50 comprises two sandwiching the retardation film 30 side of the substrate opposed to the display panel, the display panel having a uniform thickness of the side of the base 30 of the retardation film if included, can be the distance between the first conductive layer 50 and the second conductive layer 70 is kept constant, thereby making good touch sensor detection sensitivity.
[0155] 需要说明的是，该带静电容量式触摸面板的显示装置200也可以不具有基材60。 [0155] It should be noted that the display device with a capacitance touch panel 200 may not have a substrate 60. 另外，带静电容量式触摸面板的显示装置200的显示面板侧基材还可以在相位差膜30的两表面形成有硬涂层、折射率匹配层、或低折射率层。 Further, a display device with a display panel capacitance touch panel 200 on the side of the substrate has low refractive index layer may be formed on both surfaces of the retardation film 30 has a hard coat layer, the refractive index matching layer, or a. 这里，作为硬涂层、折射率匹配层及低折射率层，可使用与形成于基材60的光学膜62的表面的相同的层。 Here, the hard coat layer, the refractive index matching layer and low refractive index layer may be formed using the same layer on the surface of the optical film 62 of the substrate 60. 此外，带静电容量式触摸面板的显示装置200的显示面板侧基材也可以不是包含相位差膜30的基材，而是包含具有给定的光学功能的原膜的基材。 Further, the display apparatus with a display panel side of the substrate capacitance touch panel 200 may not comprise the base of the retardation film 30, but includes a base having a given optical function of the original film.
[0156] 进一步，根据上述带静电容量式触摸面板的显示装置200，与前一例的带静电容量式触摸面板的显示装置100相同，即使在操作者的偏光眼镜的透射轴和视觉辨认侧偏振片40的偏振膜42的透射轴正交而形成所谓的正交尼科尔状态的情况下，操作者也可以视觉辨认到显示内容。 [0156] Further, 200, the same display device of the electrostatic capacity type touch panel according to the previous example of an electrostatic capacity type touch panel display device 100, even if the operator of the transmission axis of the polarized glasses and a polarizing plate side visibility 40 when the transmission axis of polarizing film 42 is formed orthogonal to a so-called crossed Nicols state, the operator can also visually recognize the display content. 另外，由于第二导电层50及第一导电层70这两者设置在了一个显示面板侧基材(相位差膜30)上，因此可以在利用相位差膜30补偿作为显示面板20的液晶面板的视角依赖性、斜向观察时的偏振片的漏光现象的同时，简化触控传感器的结构，减薄作为显示面板20的液晶面板和覆盖层80之间的厚度。 Further, since the second conductive layer 50 and the first conductive layer 70 disposed on both sides of the panel substrate (the retardation film 30) on a display, it is possible to compensate for the phase difference film 30 as a display panel 20 of the liquid crystal panel viewing angle dependence, as obliquely viewed polarizing light leakage while simplifying the structure of the touch sensor 80 to reduce the thickness between the liquid crystal panel as a display panel and a cover layer 20. 另外，在显示装置200中，可以使用包含相位差膜30的显示面板侧基材而容易且良好地形成静电容量式触控传感器。 Further, the display device 200, the display panel may be used comprises the retardation film side of the substrate 30 easily and smoothly formed electrostatic capacity type touch sensor.
[0157] 需要说明的是，在该显示装置200中，在作为显示面板侧基材的相位差膜30的两面形成了导电层50、70，因此与在相位差膜30的表面形成导电层50、70中的一者、在其它构件的表面形成导电层50、70中的另一者的情况相比，例如，可以防止在构件叠层时第一导电层70和第二导电层50的图案发生错位。 [0157] Note that, in the display device 200, on both surfaces of the retardation film side of the base panel 30 is formed as a conductive layer 50, 70 is displayed, and so the retardation film 30 formed on the surface of the conductive layer 50 , one 70, the other surface of the member 50, 70 of the conductive layer of the other of the case is formed as compared, for example, possible to prevent the pattern of the first conductive layer 70 and the second conductive layer 50 when the laminate member dislocation.
[0158]〈带静电容量式触摸面板的显示装置(第三实施方式)> [0158] <display device with electrostatic capacity type touch panel (third embodiment)>
[0159]图3示意性地示出了按照本发明的第3带静电容量式触摸面板的显示装置的主要部分的剖面结构。 [0159] Figure 3 schematically shows a sectional structure of the display device in accordance with paragraph 3 of the electrostatic capacity type touch panel of the present invention, the main portion. 这里，图3所示的带静电容量式触摸面板的显示装置300是兼具在画面上显示图像信息的显示功能、以及检测操作者触及的画面位置作为信息信号向外部输出的触控传感器功能的装置。 Here, the display unit with the electrostatic capacity type touch panel 300 is shown in Figure 3 show both the touch sensor function display image information, and to detect the position of the operator touch screen as an information signal to an external output on the screen means.
[0160] 带静电容量式触摸面板的显示装置300从配置有有机EL显示(OLED)面板的一侧(图3中的下侧。以下简称为“显示面板侧”)向着操作者视觉辨认图像的一侧(图3中的上侦U。以下简称为“视觉辨认侧”)依次叠层而具有:作为显示面板20的有机EL显示(OLED)面板24及阻挡层25、第二导电层50、基材60、第一导电层70、作为偏振片40的显示面板侧保护膜41、偏振膜42及覆盖层侧保护膜43、以及覆盖层80。 [0160] The display device 300 with the electrostatic capacity type touch panel arranged from the side of the organic EL display (OLED) panel (lower side in FIG. 3. Hereinafter referred to as "display panel side") toward the operator to visually recognize the image supply side (Figure 3 in the investigation U. hereinafter referred to as "side visibility") having laminated in this order: a display panel 20 as an organic EL display (OLED) panel 24 and the barrier layer 25, the second conductive layer 50, substrate 60, the first conductive layer 70, a display panel 40 used as a polarizer protective film 41 side, the polarizing film 42 and the cover layer side of the protective film 43, and a covering layer 80. 另外，在该带静电容量式触摸面板的显示装置300中，第一导电层70形成于基材60的一侧(覆盖层80侧)的表面，第二导电层50形成于基材60的另一侧(显示面板20侧)的表面。 Further, in the belt of the electrostatic capacity type touch panel display device 300, the first conductive layer 70 is formed on the side of the substrate 60 (the cover layer 80 side) of the surface of the second conductive layer 50 is formed on the substrate 60 other side (the display panel 20 side) of the surface. 另外，在该显示装置300中，偏振片40和相比于偏振片40位于显示面板20侧的基材60构成圆偏振片。 Further, the display device 300, polarizing plates 40 and 40 as compared to the polarizing film 60 located on the display panel 20 side of the base material constituting the circularly polarizing plate.
[0161] 需要说明的是，显示面板20、形成有第二导电层50及第一导电层70的基材60、显示面板侧保护膜41、偏振膜42、覆盖层侧保护膜43、及覆盖层80，可通过使用粘接剂层或粘结剂层、或通过构件表面的等离子体处理等已知的方法，将各构件彼此间相互贴合而实现一体化。 [0161] Note that, the display panel 20, there are formed a first conductive layer 50 and the substrate 70 of the second conductive layer 60, the display panel 41 side of the protective film, the polarizing film 42, the protective film side of the cover layer 43, and cover layer 80, by using an adhesive layer or an adhesive layer, or by known methods such as plasma treatment of the surface of the member, each member will be mutually bonded to each other and integrated. 即，图3中的叠层结构的间隙部分形成有例例如粘接剂层或粘结剂层。 That is, the gap portion 3 is formed with a laminated structure in Example e.g., an adhesive layer or an adhesive layer.
[0162][有机EL显示(OLED)面板] [0162] [organic EL display (OLED) panel]
[0163] 作为有机EL显示(OLED)面板24，可以使用例如在透明基板表面具有由透明的电极材料形成的透明电极、叠层于该透明电极且由EL材料形成的发光层、及叠层于该发光层且与上述透明电极相对地形成的背面电极，且向透明基板侧发光的透明基板侧发光的有机EL显示(OLED)面板。 [0163] The organic EL display (OLED) panel 24, for example, may be used a light-emitting layer composed of a transparent electrode material formed on the transparent electrode to laminate the transparent electrode and the EL material formed on the surface of the transparent substrate, and lamination to the light-emitting layer and the transparent electrode and a back electrode formed opposite of the transparent substrate and the light emitting side to the light side of the transparent substrate of the organic EL display (OLED) panel. 进而，在带静电容量式触摸面板的显示装置300中，通过向有机EL显示(OLED)面板24通电，从而对操作者显示期望的图像。 Further, in the display device 300 with the electrostatic capacity type touch panel, by providing an organic EL display (OLED) 24 is energized panel, thereby displaying a desired image operator.
[0164] 需要说明的是，作为透明电极、发光层及背面电极，可以使用已知的材料。 [0164] It should be noted that, as a transparent electrode, a light emitting layer and a back electrode, a known material. 另外，能够用于本发明的带静电容量式触摸面板的显示装置的显示面板，并不限定于使用了上述结构的有机EL显示(OLED)面板24的显示面板。 Further, the display panel can be used with the electrostatic capacity type touch panel of the display device of the present invention is not limited to the use of the above-described structure of the organic EL display (OLED) display panel 24 of the panel.
[0165][阻挡层] [0165] [barrier]
[0166] 作为位于有机EL显示(OLED)面板24的视觉辨认侧的阻挡层25，可使用已知的构件、例如玻璃制或塑料制的对可见光透明的板。 [0166] As the organic EL display is located (OLED) to identify the visual side of the panel 24 of barrier layer 25, using known means, e.g., a glass or plastic plate transparent to visible light.
[0167][第二导电层] [0167] [Second conductive layer]
[0168] 第二导电层50形成于基材60的另一侧(显示面板20侧)的表面，位于阻挡层25和基材60之间。 [0168] The second conductive layer 50 is formed on the other side of the substrate 60 (the display panel 20 side) of the surface, located between the barrier layer 25 and the substrate 60. 进而，第二导电层50与第一导电层70共同构成静电容量式的触控传感器。 Further, the second conductive layer 50 and conductive layer 70 constitute a first capacitance-type touch sensor.
[0169] 这里，作为第二导电层50，可使用与在带静电容量式触摸面板的显示装置100中使用的相同的层。 [0169] Here, as the second conductive layer 50, with the same layer in the display device 100 with the electrostatic capacity type touch panel using use.
[0170][第一导电层] [0170] [a first conductive layer]
[0171] 第一导电层70形成于基材60的一侧(覆盖层80侧)的表面，相比于第二导电层50位于覆盖层80侧，更具体而言，位于偏振片40和基材60之间。 [0171] The first conductive layer 70 is formed on the side of the substrate 60 (the cover layer 80 side) of the surface, compared to the second conductive layer 50 located on the side cover layer 80, more specifically, the polarizer (40) and located between the timber 60. 进而，第一导电层70与夹着基材60在叠层方向上隔离开地设置的第二导电层50共同构成静电容量式的触控传感器。 Further, the first conductive layer 70 sandwiched between the substrate and the second conductive layer 60 in the laminating direction provided to isolate 50 together constitute the capacitance-type touch sensor.
[0172] 这里，第一导电层70可使用与第二导电层50同样的材料形成。 [0172] Here, the first conductive layer 70 may be formed using the same material as the second conductive layer 50.
[0173] 另外，在基材60的表面上第一导电层70及第二导电层50的形成可以采用与带静电容量式触摸面板的显示装置100同样的方法进行。 [0173] Further, on the surface of the substrate 60 is formed of a first conductive layer 70 and the second conductive layer 50 may be performed using the same method as the display device with capacitance touch panel 100.
[0174][具有光学膜的基材] [0174] [substrate having an optical film]
[0175] 基材60位于第一导电层70和第二导电层50之间，如图3所示，具有:具有λ/4的相位差的光学膜62、和形成于光学膜62的两表面的硬涂层61、63。 [0175] The first substrate 60 is conductive layer 70 and the second conductive layer 50, shown in Figure 3, having: an optical retardation film 62 having a λ / 4's, and are formed on the two surfaces of the optical film 62 the hard coat layer 61, 63. 另外，就基材60的光学膜62而言，其配置使得该光学膜62的慢轴和后续详细说明的偏振片40的偏振膜42的透射轴的夹角从叠层方向观察成给定角度。 In addition, the optical film 62 on the substrate 60, its configuration so that the slow axis of the optical film 62 and a polarizer subsequent detailed description of the transmission axis of polarizing film 40 42 angle as viewed from the direction of lamination to a given angle .
[0176] 这里，所述“给定角度”是指，能够利用偏振片40和光学膜62形成圆偏振片，从而防止由外部入射光的反射光而导致显示内容变得难以视觉辨认的角度。 [0176] Herein, the "given angle" means, can utilize a polarizing plate, an optical film 40 is formed circularly polarizing plate 62, thereby preventing the reflected light caused by the incident light from outside becomes difficult to visually recognize the display angle. 具体而言，给定角度为能够使从覆盖层80侧起通过偏振片40向显示面板20侧进发的直线偏振光利用光学膜62而成为圆偏振光的角度(例如，约45°左右)，更具体而言，为45° ±5°、优选为45° ±3°、更优选为45° ±1°、进一步优选为45° ±0.3°的范围内的角度。 Specifically, the given angle is changed by the polarizer 40 to enable the display panel 20 side moving linearly polarized light using the optical films 62 and 80 from the side of the cover layer becomes circularly polarized light from the angle (e.g., about 45 ° or so), more specifically, the angle is 45 ° ± 5 °, preferably 45 ° ± 3 °, more preferably 45 ° ± 1 °, more preferably 45 ° ± 0.3 ° range.
[0177] 另外，所述“具有λ/4的相位差”是指，对沿叠层方向透过了光学膜62后的光赋予的相位差(延迟Re)为光波长λ的约1/4倍。 [0177] In addition, the "having a phase difference of λ / 4" refers to, for the stacking direction through the retardation (retardation Re) of the optical film 62 of the light after imparting light wavelength [lambda] is about 1/4 times. 具体而言，在要透射的光的波长范围为400nm〜700nm的情况下，Re为波长λ的约1/4倍是指，Re为λ/4±65ηηι、优选为λ/4±30nm、更优选为λ/4±10ηηι的范围。 Specifically, in the wavelength range of light to be transmitted is the case 400nm~700nm, Re is approximately 1/4 wavelength [lambda] refers, Re is λ / 4 ± 65ηηι, preferably λ / 4 ± 30nm, more preferably λ / 4 ± 10ηηι the range. 需要说明的是，Re为式:Re = (nx-ny)Xd[式中，ηχ为膜面内的慢轴方向的折射率，ny为膜面内的与慢轴在面内垂直的方向的折射率，d为光学膜62的厚度]所示的面内方向延迟。 Note that, Re is the formula: Re = (nx-ny) Xd [wherein, ηχ refractive index of the slow axis in the film plane, ny is the slow axis in the plane perpendicular to the direction within the film plane refractive index, d is the thickness of the delay] in-plane direction of the optical film 62 shown.
[0178]另外，如图3所示，在该例的带静电容量式触摸面板的显示装置300中，构成静电容量式的触控传感器的第一导电层70和第二导电层50夹着具有光学膜62的基材60相对时，如果基材60的厚度均一，则能够将第一导电层70和第二导电层50之间的距离保持恒定，从而使触控传感器的检测灵敏度良好。 [0178] Further, as shown, in the case of an electrostatic capacity type touch panel display device 300 constituting the electrostatic capacity type touch sensor 70 of the first conductive layer and the second conductive layer 50 having a sandwich 3 the optical film 62 relative to the substrate 60, if the thickness of the base plate 60 uniform, it is possible the distance between the first conductive layer 50 and the second conductive layer 70 is kept constant, so that good detection sensitivity of the touch sensor.
[0179][光学膜] [0179] [Optical Film]
[0180] 作为光学膜62，可以使用与在带静电容量式触摸面板的显示装置100中使用的相同的膜。 [0180] As the optical film 62, the same film can be used in the display apparatus 100 with a touch panel of the electrostatic capacity used.
[0181] 需要说明的是，在该带静电容量式触摸面板的显示装置300中构成圆偏振片的一部分的光学膜62，优选具有入射到光学膜的光在长波长侧被赋予的相位差增大、在短波长侧被赋予的相位差减小的反波长色散特性。 [0181] Note that, the optical film constituting the circularly polarizing plate 62 in a portion of the display device with a capacitance touch panel 300, incident on the optical film preferably has a retardation of growth in light of the long wavelength side is given large anti retardation wavelength dispersion characteristics in the short wavelength side is given reduced. 这样一来，入射到光学膜的光的波长越长则被赋予的相位差的绝对值越大，波长越短则被赋予的相位差的绝对值越小，因此能够在宽波长范围获得期望的偏光特性，将直线偏振光转变为圆偏振光。 Thus, the wavelength of incident light to the optical film were given longer the larger the absolute value of the phase difference, the shorter the wavelength of the absolute value of the retardation were given smaller, it is possible to obtain a desired wide wavelength range polarizing property, the linearly polarized light into circularly polarized light.
[0182][硬涂层] [0182] [hard coat layer]
[0183] 作为在光学膜62的两表面形成的硬涂层61、63，可使用与在带静电容量式触摸面板的显示装置100中使用的相同的层。 [0183] As the hard coat layer 61, 63 on both surfaces of the optical film 62 is formed with the same layer in the display device 100 with the electrostatic capacity type touch panel using use.
[0184][折射率匹配层] [0184] [index matching layer]
[0185] 作为折射率匹配层，可以使用与在带静电容量式触摸面板的显示装置100中使用的相同的层。 [0185] as an index matching layer can be used in the same layer in the display device 100 with the electrostatic capacity type touch panel use.
[0186]与带静电容量式触摸面板的显示装置100同样地，基材60也可以不具有硬涂层61、63，另外，也可以代替硬涂层61、63、或除了硬涂层61、63以外，还具有折射率匹配层、低折射率层等光学功能层。 [0186] and the display device with capacitance touch panel 100 in the same manner, the substrate 60 may not have a hard coat layer 61, 63, it is also possible to replace the hard coat layer 61, 63, or 61 in addition to the hard coat layer, 63, it also has the optical function layer index matching layer, a low refractive index layer.
[0187][偏振片] [0187] [polarizing]
[0188] 作为偏振片40，没有特殊限定，例如，可以使用利用2片保护膜(显示面板侧保护膜41及覆盖层侧保护膜43)夹持偏振膜42而成的偏振片40。 [0188] As polarizing plate 40 is not particularly limited, for example, may be used utilizing two protective film (protective film side of the display panel 41 and the cover layer 43 side of the protective film) 42 made of a polarizing film sandwiched polarizing plate 40. 另外，如上所述，可以配置成使得偏振膜42的透射轴和基材60中光学膜62的慢轴在叠层方向(在图3中为上下方向)观察时以约45°交叉。 Further, as described above, it may be configured such that the transmission axis of polarizing film 60 and the substrate 62 in the optical film laminate in the slow axis direction (in the vertical direction in FIG. 3) of approximately 45 ° when viewed in the cross 42. 需要说明的是，在通过卷对卷来制造包含偏振片40及基材60的叠层体的情况下，只要调整用作光学膜62的斜向拉伸膜的取向角、使得形成叠层体时光学膜62的慢轴和偏振膜42的透射轴达到上述给定角度即可。 Note that, in the case of producing by roll to roll laminate comprising the polarizing plate 40 and the base plate 60, as long as the optical film 62 to adjust the orientation angle of the stretched film obliquely, so as to form a laminate when the optical film and the slow axis 62 of the transmission axis of the polarizing film 42 to achieve the given angle.
[0189][覆盖层] [0189] [overlay]
[0190] 覆盖层80可以使用已知的构件、例如玻璃制或塑料制的相对于可见光透明的板来形成。 [0190] cover layer 80 may be a known member, such as glass or plastic plate transparent to visible light is formed.
[0191] 另外，根据带静电容量式触摸面板的显示装置300，由于在覆盖层80和显示面板20之间配置有圆偏振片，且该圆偏振片包含具有偏振膜42的偏振片40、和具有以给定光轴角度配置且具有给定相位差的光学膜62的基材60，因此可以防止由外部入射光的反射光而导致显示内容变得难以视觉辨认。 [0191] Further, according to the electrostatic capacity type touch panel display device 300, since the cover layer 80 between the display panel and a circular polarizer 20 is disposed, and a circularly polarizing plate comprising the polarizing plate 42 having a polarizing film 40, and having a given angle to the optical axis and having a given configuration of the optical retardation film 62 of the substrate 60, thereby preventing the reflected light caused by the incident light from outside becomes difficult to visually recognize the display content. 具体而言，可以在利用基材60的光学膜62将从覆盖层80侧起通过偏振片40向显示面板20侧进发的直线偏振光转变为圆偏振光的同时，利用基材60的光学膜62将作为该圆偏振光在显不面板20处的反射光的反向圆偏振光转变为与上述直线偏振光正交的其它直线偏振光，从而利用偏振片40来防止该其它直线偏振光向覆盖层80侧的透射。 Specifically, a base material 60 from the cover film 62 from the optical layer 80 side through the polarizer 40 to the side of the display panel 20 moving linearly polarized light into circularly polarized light at the same time, the film substrate 60 using an optical 62 as a circularly polarized light in the panel was not reflected light 20 of a reverse circularly polarized light into linearly polarized light perpendicular to said linearly polarized light other, to take advantage of the polarizing plate 40 to prevent the other linearly polarized light to transmissive cover layer 80 side. 因此，在带静电容量式触摸面板的显示装置300中，不会受到反射光的阻碍，操作者可以容易地视觉辨认到显示内容。 Thus, the display device 300 with the electrostatic capacity type touch panel, the reflected light is not impeded, the operator can easily visually recognize the display contents.
[0192] 另外，在带静电容量式触摸面板的显示装置300中，第二导电层50及第一导电层70两者设置于一个基材60，因此不需要另外设置用于形成第二导电层50及第一导电层70的透明基板。 [0192] In the display device 300 with the electrostatic capacity type touch panel, the second conductive layer 50 and the first conductive layer 70 disposed on a substrate 60 both have no additional conductive layer is provided for forming a second a first conductive layer 50 and the transparent substrate 70. 因此，可以简化触控传感器的结构，削减存在于显示面板20和覆盖层80之间的构件的数量，从而减薄显示面板20和覆盖层80之间的厚度。 Accordingly, the touch sensor can be simplified, reducing the number of member 80 between the panel 20 and the cover layer is present on the display, thereby thinning the thickness of the display panel 20 and the cover layer 80. 其结果，能够实现显示装置300的薄型化。 As a result, thinner display device 300. 需要说明的是，在该显示装置300中，在基材60的两面形成了导电层50、70，因此与在基材60的表面形成导电层50、70中的一者、在其它构件的表面形成导电层50、70中的另一者的情况相比，例如，可以防止在构件叠层时第一导电层70和第二导电层50的图案发生错位。 Note that, in the display device 300, on both sides of the substrate 60 is formed a conductive layer 50, 70, so the surface of the other surface of the base member 60 is formed in a conductive layer 50, 70 are, in forming a conductive layer 50, 70 as compared to the other of the case, for example, to prevent the first conductive layer 70 and a patterned second conductive layer 50 occurs when the displacement member laminate.
[0193] 进一步，在上述一例的显示装置300中，在第一导电层70和第二导电层50之间设置了基材60，因此能够容易地构成静电容量式触控传感器。 [0193] Further, in the above-described example of the display device 300, the first conductive layer 70 between the conductive layer 50 and the second substrate 60 is provided, it is possible to easily form the electrostatic capacity type touch sensor. 另外，作为基材60的光学膜62，可以使用相对介电常数低、并且饱和吸水率小的膜，因此能够良好地形成静电容量式触控传感器。 Further, the optical film 62 as the substrate 60, use can be low relative dielectric constant, and the saturated water absorption of the film is small, it is possible to satisfactorily form an electrostatic capacity type touch sensor.
[0194] <带静电容量式触摸面板的显示装置(第三实施方式的变形例)> [0194] <(Modification of Third Embodiment) The display device with capacitance touch panel>
[0195]图4示意性地示出了按照本发明的第4带静电容量式触摸面板的显示装置的主要部分的剖面结构爸示意性地示出。 [0195] Figure 4 schematically shows a sectional structure according to a fourth principal part of dad electrostatic capacity type touch panel of the display device of the present invention is schematically illustrated.
[0196] 这里，图4所示的带静电容量式触摸面板的显示装置400，在以下方面与前例的带静电容量式触摸面板的显示装置300的构成不同: [0196] Here, the display device shown in FIG. 4 with a capacitance touch panel 400, in the previous example with the following electrostatic capacity type touch panel constituting the display apparatus 300 is different:
[0197] •偏振片40不具有显示面板侧保护膜41、偏振膜42位于偏振片40的显示面板20侧的表面(图4中的下面)的这一方面； [0197] • polarizing plate 40 does not have a display panel 41 side of the protective film, the polarizing film 42 is a polarizing plate 40 of the side surface of the display panel 20 (FIG. 4 below) in this regard;
[0198].在基材60和偏振片40之间、更具体而言在形成于基材60的表面的第一导电层70和偏振片40的偏振膜42之间进一步包含偏振片侧基材90，圆偏振片由基材60、偏振片侧基材90及偏振片40形成的这一方面； [0198] In between the substrate 60 and the polarizing plate 40, more specifically, between the first conductive layer 60 is formed on the surface of the substrate 70 and the polarizing film 40 of the polarizing plate 42 further comprises a substrate-side polarizing plate 90, the substrate 60 by the circularly polarizing plate, the polarizing plate side of the substrate 90 and the polarizing film 40 formed in this regard;
[0199] •偏振片侧基材90贴合于偏振片40的偏振膜42的显示面板20侧的表面、偏振片侧基材90贴合于第一导电层70的覆盖层80侧的表面的这一方面； [0199] • polarizing plate side of the substrate 90 bonded to the surface of the polarizing film is a polarizing plate 40 a display panel 42 20 side polarizer side of the substrate 90 bonded to the surface of the first conductive layer 80 of the cover layer 70 side of in this regard;
[0200].偏振片侧基材90含有具有λ /2的相位差的其它光学膜92的这一方面； . [0200] containing polarizing film side of the substrate 90 to other optical retardation film having λ / 2 of 92 in this regard;
[0201].光学膜62的慢轴、其它光学膜92的慢轴及偏振膜42的透射轴以给定角度交叉的这一方面， [0201] The optical film of the slow axis 62, other optical film and the slow axis 92 of the transmission axis of polarizing film 42 at a given angle crossing this aspect,
[0202] 在其它方面，具有与带静电容量式触摸面板的显示装置300相同的构成。 [0202] In other aspects, the display device 300 having an electrostatic capacity type touch panel of the same composition.
[0203] 这里，偏振片侧基材90向偏振膜42上的贴合、以及偏振片侧基材90向第一导电层70上的贴合，可以使用已知的粘接剂层或粘结剂层来进行。 [0203] Here, the polarizing plate side of the substrate 90 bonded to the polarizing film 42 on the side of the substrate 90 and the polarizing film 70 bonded to the first conductive layer, a known adhesive layer or an adhesive layer to.
[0204] 偏振片侧基材90具有:具有λ /2的相位差的其它光学膜92、和形成于光学膜92的两表面的硬涂层91、93。 [0204] substrate 90 having a polarizing film side: Other optical films having a retardation λ / 2 of 92, and formed on both surfaces of the optical film 92 of the hard coat layer 91, 93. 另外，就其它光学膜92而言，可以使用与光学膜62相同的材料及方法来制造。 Further, the other optical film 92, the optical film 62 may be used with the same materials and manufacturing methods.
[0205] 这里，所述“具有λ/2的相位差”是指，对沿叠层方向透过了偏振片侧基材90的其它光学膜的光赋予的相位差(延迟Re)为光波长λ的约1/2。 [0205] Here, the "having a phase difference of λ / 2" refers to, the stacking direction of the polarizing plate side of the substrate through the other retardation (retardation Re) imparting light optical film 90 is a wavelength of light λ is approximately 1/2. 具体而言，在要透射的光的波长范围为400nm〜700nm的情况下，Re为波长λ的约1/2倍是指，Re为λ/2±65ηηι、优选为λ/2±30nm、更优选为λ/2±10ηηι的范围。 Specifically, in the wavelength range of light to be transmitted is the case 400nm~700nm, Re is approximately 1/2 times the wavelength [lambda] refers, Re is λ / 2 ± 65ηηι, preferably of λ / 2 ± 30nm, more preferably the range of λ / 2 ± 10ηηι of. 需要说明的是，Re为式:Re = (nx-ny)Xd[式中，ηχ为膜面内的慢轴方向的折射率，ny为膜面内的与慢轴在面内垂直的方向的折射率，d为其它光学膜92的厚度]所示的面内方向延迟。 Note that, Re is the formula: Re = (nx-ny) Xd [wherein, ηχ refractive index of the slow axis in the film plane, ny is the slow axis in the plane perpendicular to the direction within the film plane refractive index, d is the thickness of the delay] in-plane direction of the optical film 92 shown in the other.
[0206] 另外，优选基材60的光学膜62及偏振片侧基材90的其它光学膜92可以2片组合的方式而形成赋予λ/4的相位差的光学板(所谓的宽带1/4波长板)，并且它们均由具有相同的波长色散特性的同一材料形成。 [0206] Further, the optical film 62 and the polarizing film side of the base substrate 60 to other optical film is preferably 90 92 2 can be combined to form a given manner λ / 4 optical retardation plate (a so-called wide-band quarter the same material wavelength plate), and they have the same wavelength by the dispersion characteristics of the formation.
[0207] 进一步，光学膜62及其它光学膜92配置成使得光学膜62的慢轴和偏振片40的偏振膜42的透射轴的夹角、及偏振片侧基材90的其它光学膜92的慢轴和偏振片40的偏振膜42的透射轴的夹角从叠层方向观察分别成给定角度。 [0207] Further, the optical film 62 and the other optical film 92 is arranged such that the optical film and the slow axis angle of the polarizer 62 polarizing transmission axis 42 of the film 40, and other optical polarizing film substrate 90 side of 92 the angle between the slow axis of the polarizing plate 40 and the polarizing film transmission axis 42 as viewed from the direction of lamination into a given angle, respectively.
[0208] 这里，所述“给定角度”是指，能够形成宽带1/4波长板的角度，具体而言，是使从覆盖层80侧起通过偏振片40向显示面板20侧进发的直线偏振光A在依次通过其它光学膜92及光学膜62时转变为圆偏振光Α，并且使圆偏振光A在显示面板20处反射而成的反向圆偏振光B在依次通过光学膜62及其它光学膜92时转变为和上述直线偏振光A正交的其它直线偏振光B的角度。 [0208] Here, the "given angle" refers to a broadband quarter-wave plate angle can be formed, specifically, it is to make the 80-side cover layer 20 side from the display panel headed straight through the polarizer 40 to a polarized light sequentially through the other optical film 92 and the optical film 62 into circularly polarized light Α, and so a circularly polarized light reflected from the display panel 20 B reverse circularly polarized light passes through the optical film 62 and other optical films 92 into linearly polarized light and said a linearly polarized light perpendicular to the angle B of the other.
[0209] 具体而言，“给定角度”是指，在其它光学膜92及光学膜62具有相同的波长色散特性的情况下，在将光学膜62的慢轴和偏振膜42的透射轴的夹角设为X。 By [0209] Specifically, "given angle" means, in other optical film 92 and the optical film 62 has the same wavelength dispersion characteristics of the case, the slow axis of the optical film and the polarizing film 62 of the transmission shaft 42 angle is set to X. 、将偏振片侧基材90的其它光学膜92的慢轴和偏振膜42的透射轴的夹角设为Y。 The angle between the transmission axis to the other side of the substrate 90 of the optical polarizing film slow axis 92 and the polarizing film 42 Y. 时，使Χ-2Υ = 45°成立的角度。 When that Χ-2Υ = 45 ° angle of the establishment. 更具体而言，“给定角度”例如可以列举下述组合:(i)使光学膜62的慢轴和偏振膜42的透射轴的夹角为约75°、使偏振片侧基材90的其它光学膜92的慢轴和偏振膜42的透射轴的夹角为约15°的组合、(ii)使光学膜62的慢轴和偏振膜42的透射轴的夹角为约90°、使偏振片侧基材90的其它光学膜92的慢轴和偏振膜42的透射轴的夹角为约22.5°的组合等。 More specifically, "a given angle" Examples include the following combinations: (i) the optical film 62 and the angle between the slow axis of the transmission axis of polarizing film 42 is about 75 °, the polarizing plate 90 side of the base other slow axis angle of the optical film and the polarizing film 92 of the transmission shaft 42 is a combination of about 15 °, (ii) the optical film and the slow axis 62 of the polarizing film transmission axis angle 42 of about 90 °, so that the angle between the polarizing plate side of the base 90 of the other optical film and the slow axis 92 of the transmission axis of the polarizing film 42 is a combination of 22.5 ° about the like.
[0210] 这里，“约75° ”更具体而言为75° ±5°、优选为75° ±3°、更优选为75° ±1°、进一步优选为75° ±0.3°的范围内的角度，“约15° ”更具体而言为15° ±5°、优选为15° ±3°、更优选为15° ±1°、进一步优选为15° ±0.3°的范围内的角度，“约90° ”更具体而言为90° ±5°、优选为90° ±3°、更优选为90° ±1°、进一步优选为90° ±0.3°的范围内的角度，“约22.5° ”更具体而言为22.5° ±5°、优选为22.5° ±3°、更优选为22.5° ±1°、进一步优选为22.5° ±0.3°的范围内的角度。 [0210] Here, "about 75 °" More specifically, 75 ° ± 5 °, preferably 75 ° ± 3 °, more preferably 75 ° ± 1 °, more preferably within a range of 75 ° ± 0.3 ° of the angle, "about 15 °" more specifically, 15 ° ± 5 °, preferably 15 ° ± 3 °, more preferably 15 ° ± 1 °, more preferably within a range of 15 ° ± 0.3 ° angle of " about 90 ° "more specifically, 90 ° ± 5 °, preferably 90 ° ± 3 °, more preferably 90 ° ± 1 °, more preferably 90 ° ± 0.3 ° angle in a range of" about 22.5 ° "more specifically, 22.5 ° ± 5 °, preferably 22.5 ° ± 3 °, more preferably 22.5 ° ± 1 °, more preferably at an angle in the range of 22.5 ° ± 0.3 ° of.
[0211] 需要说明的是，从能够通过卷对卷容易地制造包含偏振片40的叠层体的方面考虑，优选与偏振膜42的透射轴的夹角为约90°的光学膜62为纵向拉伸膜，优选与偏振膜42的透射轴的夹角为约75°的光学膜62为斜向拉伸膜，优选与偏振膜42的透射轴的夹角为约15°的其它光学膜92为斜向拉伸膜，优选与偏振膜42的透射轴的夹角为约22.5°的其它光学膜92为斜向拉伸膜。 [0211] It should be noted that aspects of the laminate from the polarizing plate 40 can be considered by the roll to roll easily manufactured comprises, and preferably the angle between the transmission axis of the polarizing film 42 is an optical film of approximately 62 by 90 ° to the longitudinal direction other optical films stretched film, preferably the angle between the polarizing film and the transmission axis 42 of the optical film 62 is approximately 75 ° obliquely stretched film, and preferably the angle between the transmission axis of the polarizing film 42 is about 15 ° 92 angle of obliquely stretched film, preferably with the polarizing film transmission axis of about 42 of 22.5 ° to the other optical film 92 obliquely stretched film.
[0212] 在上述第三实施方式的变形例中，在即使基材与直接叠层于该基材的层(例如，导电层、硬涂层、粘接剂层、粘结剂层)之间的折射率差为0.05以上也不存在对界面反射的影响(例如，在偏振片侧基材90的显示面板20侧形成有第一导电层70)的情况下，无需设置折射率匹配层。 [0212] In the modified example of the above-described third embodiment, even if between the substrate and directly laminated to the substrate layer (e.g., a conductive layer, a hard coat layer, an adhesive layer, an adhesive layer) under the influence of the refractive index difference of 0.05 or more interfacial reflection does not exist (e.g., the polarizing plate 90 side of the base 20 side of the display panel is formed with a first conductive layer 70) of the case, without providing a refractive index matching layer.
[0213] 进一步，根据上述带静电容量式触摸面板的显示装置400，与前例的带静电容量式触摸面板的显示装置300同样地，操作者能够容易地视觉辨认到显示内容。 [0213] Further, the display device according to the above-described electrostatic capacity type touch panel 400, the previous example with the electrostatic capacity type touch panel display device 300 in the same manner, the operator can easily visually recognize the display contents. 另外，可以简化触控传感器的结构，削减存在于显示面板20和覆盖层80之间的构件的数量，从而减薄显示面板20和覆盖层80之间的厚度。 Further, the touch sensor can be simplified, reducing the number of member 80 between the panel 20 and the cover layer is present on the display, thereby thinning the thickness of the display panel 20 and the cover layer 80. 另外，在显示装置400中，能够使用基材60容易且良好地形成静电容量式触控传感器。 Further, in the display device 400, the substrate 60 can be used easily and satisfactorily forming an electrostatic capacity type touch sensor.
[0214] 进一步，根据带静电容量式触摸面板的显示装置400，无需设置折射率匹配层，因此能够简化触控传感器的结构，减薄显示面板和覆盖层之间的厚度。 [0214] Further, according to the display device with capacitance touch panel 400, without providing a refractive index matching layer, it is possible to simplify the structure of the touch sensor, a display panel to reduce the thickness and the cover layer.
[0215] 需要说明的是，在该显示装置400中，可以使偏振片侧基材90作为偏振膜42的保护膜发挥功能，因此不需要偏振片40的显示面板侧保护膜41，可以减薄偏振片40的厚度。 [0215] Note that, in the display device 400, the polarizing plate side of the substrate 90 can as a polarization film-protecting function 42 therefore requires no polarizing plate protective film 40 side of the display panel 41 can be thinned the thickness of the polarizer 40. 因此，能够进一步减薄显示面板20和覆盖层80之间的厚度。 Accordingly, it is possible to further thin the thickness of the display panel 20 and the cover layer 80.
[0216] 另外，在该显示装置400中，能够利用光学膜62和其它光学膜92形成所谓的宽带1/4波长板，从而在宽波长范围获得期望的偏光特性，将直线偏振光良好地转变为圆偏振光。 [0216] Further, in the display device 400 can be utilized, and other optical film 62 of the optical film 92 is formed a so-called wide-band quarter wavelength plate in a wide wavelength range so as to obtain the desired polarization characteristics, good linearly polarized light converted circularly polarized light.
[0217] 需要说明的是，在该显示装置400中，在基材60的两面形成了导电层50、70，因此与在基材60的表面形成导电层50、70中的一者、在其它构件的表面形成导电层50、70中的另一者的情况相比，例如，可以防止在构件叠层时第一导电层70和第二导电层50的图案发生错位。 [0217] Note that, in the display device 400, on both sides of the substrate 60 is formed a conductive layer 50, 70 and the substrate 60 thus formed on the surface of a conductive layer 50, 70 are, in other forming a conductive layer surface of the member 50, 70 in comparison with the case of the other one, e.g., 70 to prevent the first conductive layer and the patterned second conductive layer 50 occurs when the displacement member laminate.
[0218] 以上，结合实例对本发明的带静电容量式触摸面板的显示装置进行了说明，但本发明的带静电容量式触摸面板的显示装置并不限定于上述的实例，在本发明的带静电容量式触摸面板的显示装置中可以加入适当的变化。 [0218] or more, with an example of a display device with capacitance touch panel of the present invention have been described, but the display device with capacitance touch panel of the present invention is not limited to the above examples, the static electricity of the present invention the display device capacity type touch panel and adding suitable changes.
[0219] 工业实用性 [0219] Industrial Applicability
[0220] 根据本发明，可以提供实现了薄型化的带静电容量式触摸面板的显示装置。 [0220] According to the present invention can provide a display device to achieve a thinner tape electrostatic capacity type touch panel.
[0221] 另外，根据本发明，可以提供在佩戴偏光眼镜的状态下也能够操作、并且实现了薄型化的带静电容量式触摸面板的显示装置。 [0221] Further, according to the present invention, can be provided in a state of wearing polarized glasses can operate, and to achieve a display device with thin electrostatic capacity type touch panel.
[0222] 进一步，根据本发明，可以提供能够防止由外部入射光的反射光而导致显示内容变得难以视觉辨认、并且实现了薄型化的带静电容量式触摸面板的显示装置。 [0222] Further, according to the present invention, it can be provided to prevent the reflected light from the incident light from outside and cause the display to become difficult to visually recognize, and to achieve a display device with thin electrostatic capacity type touch panel.
CN101135806A * 31 Aug 2007 5 Mar 2008 精工爱普生株式会社 Polarizing plate, liquid crystal device, and electronic apparatus
CN101276091A * 31 Mar 2008 1 Oct 2008 Nec液晶技术株式会社 Liquid crystal display device with touch panel and terminal device
CN101377587A * 30 Aug 2007 4 Mar 2009 颖台科技股份有限公司 Liquid crystal display device and optical film
JP2009283349A * Title not available
WO2012073964A1 * 29 Nov 2011 7 Jun 2012 Nitto Denko Corporation Display panel device having touch-input function
International Classification G09F9/00, B32B7/02, H01L51/50, G02F1/1333, G06F3/041, G02B5/30, G02F1/1335, H05B33/02
Cooperative Classification H05K1/0296, H05K1/0274, G06F3/0412, H01L27/323, H05K1/09, G06F3/044, G02F2413/08, G02B5/3025, G02F2001/133638, G02F2413/01, G06F2203/04103, B32B27/06, B32B2307/202, B32B27/365, B32B2457/20, B32B27/36, B32B2307/42, G02F1/13363, H01L51/5281, G02F2001/133635, G02F2001/133562, B32B27/325