Source: https://patents.google.com/patent/CN103858077A/en
Timestamp: 2020-07-10 15:38:55
Document Index: 161815529

Matched Legal Cases: ['art\n120', 'art 113', 'art 113', 'art 113', 'art 113', 'art 111', 'art 233', 'art 233', 'art 440', 'art 440', 'art 440', 'art 440', 'art 440', 'art 440']

CN103858077A - Touch window and LCD using the same - Google Patents
CN103858077A
CN103858077A CN201180073847.7A CN201180073847A CN103858077A CN 103858077 A CN103858077 A CN 103858077A CN 201180073847 A CN201180073847 A CN 201180073847A CN 103858077 A CN103858077 A CN 103858077A
CN201180073847.7A
CN103858077B (en
韩在兴
金璋焕
2011-11-02 Application filed by Lg伊诺特有限公司 filed Critical Lg伊诺特有限公司
2014-06-11 Publication of CN103858077A publication Critical patent/CN103858077A/en
2017-09-19 Publication of CN103858077B publication Critical patent/CN103858077B/en
238000000059 patterning Methods 0.000 claims abstract description 15
Touch window and the LCD that uses it
The present invention relates to improve the design freedom of icon area and the structure of manufacturing process efficiency that touch window.
Fig. 1 is the planimetric map that touches window, and Fig. 2 is the sectional view of getting along the line I-I ' of Fig. 1.
As shown in fig. 1, the touch window that is called as touch screen is configured to comprise: transparent window W, for by receiving touch from outside touch; Touch sensor module (TSP), is arranged under transparent window W and by sensing electrode patterned layer and implements viewing areas (V/A) and shaded areas (D/A); And function (F), for being electrically connected to touch sensor module (TSP), is formed on the surface of transparent window, and implements with icon.
Fig. 3 is the side cross-sectional view that is illustrated in detail in the structure of the touch sensor module (TSP) in the structure of Fig. 2.
; according in the touch window of correlation technique; under transparent window W, arrange printed patterns 1, and carry out bonded substrates 10 and 30 via the binding material 20 and 40 of such as OCA etc., on substrate 10 and 30 patterning the sensing electrode pattern 12 and 32 under printed patterns 1.The transparent window region corresponding with the region that wherein forms sensing electrode pattern 12 and 32 becomes the live part X as viewing areas (V/A), the part corresponding with shaded areas (D/A) becomes the wiring portion Y that wherein realizes wiring pattern 31, and the structure that the functional area (F/A) that wherein forms icon has wherein been printed icon (IC) realizes.
In this structure, as wherein realizing in the functional area (F/A) of above-mentioned figure target area, at 10 times printing icons of transparent window, and, whether icon is applied in flashing function, feed back and exist user to touch to use such as the light source of LED etc. in the time that user touches.In this case, by the main printing that carrys out execution icon by the printing of semi-transparent reflection formula, paste or liquid-phase resin.
But in the time forming icon part by common printing process, although there are the needs that highlight in product design, printing for example, is carried out by only applying monochromatic (, cold ash).The method causes the inhomogeneous of design factor, and produces the product with similar image, makes may be difficult to distinguish product.In addition, in manufacture process, also need semi-transparent reflection design, and therefore, need independently typography, manufacture process may be grown.
One aspect of the present invention relates to provides a kind of window that touches, it can improve by following manner design freedom in improving manufacturing process efficiency: during forming the icon area that touches window, pattern metal pattern part, these metal pattern parts are signal input unit of the function for forming on the surface of transparent window in the time realizing sensing electrode pattern.
According to one embodiment of present invention, one touch window comprises: transparent window; Sensing cell, is disposed on described transparent window, and carrys out sensing touch by sensing electrode pattern; Wiring portion, for being electrically connected to described sensing electrode pattern; And metal pattern part, for being connected function with the end of described wiring portion.
Specifically, in the time realizing described sensing electrode pattern or wiring pattern, above-mentioned metal pattern part can increase process efficiency, to realize simultaneously or in order, and in the situation that need not carrying out independently typography, realize reflecting effect by applying the material identical with described sensing electrode pattern or described wiring pattern in identical plane.Specifically, also can realize light transmission effects by realize light transmission pattern on described metal wiring pattern.
And, can differently change according to the implementation of described sensing electrode pattern the structure of above-mentioned touch window, such as structure that is directly formed on structure on described transparent window or realize in transparent substrates independently etc.
Can be configured to comprise according to the above-mentioned touch window of exemplary embodiment of the present invention: back light unit, described back light unit utilizing emitted light; And Liquid Crystal Module, described Liquid Crystal Module comprises color filter and thin film transistor (TFT), described thin film transistor (TFT) receives from the light of described back light unit transmitting.And a kind of liquid crystal display.
As mentioned above, during forming the icon area that touches window, exemplary embodiment of the present invention can be improved by following manner design freedom in improving manufacturing process efficiency: during forming the icon area that touches window, pattern metal pattern part, described metal pattern part is the signal input unit of the function that forms on the surface of transparent window in the time realizing sensing electrode pattern.
Specifically, exemplary embodiment of the present invention can be by adding that to the metal pattern part of executive signal input meticulous light transmission pattern or reflection graphic patterns control transmissivity, controls thus brightness and form the transparent effect of various icons.
By below in conjunction with the description of the drawings, certain exemplary embodiments of the present invention above and other aspects, features and advantages will be clearer, in the accompanying drawings:
Fig. 1 is the planimetric map that touches window.
Fig. 2 is the sectional view of the line I-I ' of Fig. 1.
Fig. 4 is the sectional view illustrating according to the structure of the touch window of one exemplary embodiment of the present invention.
Fig. 5 be illustrated in shown in Fig. 4 according to the figure of another example of touch window of the present invention.
Fig. 6 to Fig. 8 is the figure that another exemplary embodiment of the present invention is shown.
Fig. 9 is the figure that the modified example of metal pattern part is shown.
< drawing reference numeral >
100,200,300,400: transparent window
111,131: wiring pattern
112,132,212,232,312,332,410,420: sensing electrode pattern
113,133,233,313,440: metal pattern part
120,140,220,320: bonding insulation course
V/A: viewing areas
D/A: shaded areas
F/A: functional area
Describe below with reference to the accompanying drawings exemplary embodiment of the present invention in detail.Run through instructions, indicate identical element by identical drawing reference numeral, and will omit the explanation of its repetition.Although should be understood that at this and use word " first ", " second " etc. to describe various elements, these elements should not limited by these words.These words are only for distinguishing an element and another element.
For mode of the present invention
1. the first exemplary embodiment
Below, the region of the transparent window corresponding with the region that wherein forms sensing electrode pattern is defined as the live part X of viewing areas (V/A), the part corresponding with shaded areas (D/A) is defined as wherein realizing the wiring portion Y of wiring pattern, and the middle region that forms icon (IC) of function (F/A) that forms therein icon is defined as icon part Z.
Referring to shown in accompanying drawing, can be configured to comprise according to the touch window of exemplary embodiment of the present invention: transparent window 100; Sensing cell, it is disposed on transparent window 100, and carrys out sensing touch by sensing electrode pattern 112 and 132; Wiring pattern 111 and 131, it is electrically connected to these sensing electrode patterns; And metal pattern part 113 and 133, for playing the function of the end that is connected to wiring portion.
That is, in the structure shown in Fig. 4, the sensing cell forming on the basal surface of transparent window 100 has following structure: wherein, and patterning sensing electrode pattern 112 and 132 respectively on a surface of transparent substrates 110 and 130 independently.In this case, wiring pattern 111 and 131 is connected to the sensing electrode pattern 112 and 132 in same transparent substrates, and can form the metal pattern part 113 and 133 of the end that is connected to wiring pattern 111 and 131 thereon.
In this case, sensing cell can be configured to be included in the first sensing electrode pattern 132 forming in transparent substrates 130 and the second sensing electrode pattern 112 forming in another transparent substrates 110.This transparent substrates can be used membraneous material or glass.In this case, this membraneous material can use by any film forming in following substances: polyethylene terephthalate (PET), polycarbonate (PC), polyethersulfone (PES), polyimide (PI) and polymethylmethacrylate (PMMA).
, can by during the process at patterning sensing electrode pattern simultaneously or in order pattern metal drafting department assign to form metal pattern part 113 and 133.For example, can implement metal pattern part 113 and 133 in the position corresponding with the functional areas Z with said structure, simultaneously, carry out photoetching and realize sensing electrode pattern, described transparent electrode material such as indium tin oxide (ITO), indium-zinc oxide (IZO) or zinc paste (ZnO) etc. scribbling the membrane material of transparent electrode material.The metal pattern 113 and 133 of processing is electrically connected to wiring pattern 111 and 131.Because this technique, when on the functional area Z of the printed patterns 101 forming on the basal surface of transparent window 100 by printing form have open architecture icon 102 and can transmitted light time, realize various icons according to the color of lower metal pattern part 111 and 131, and can in the situation that need not carrying out independently typography, realize for realizing the functional area of the function corresponding with icon.
Specifically, when as below will state form transparent pattern in metal pattern part time, can in the design of the control of the control such as color or perspective etc., realize various changes.
In addition, transparent window 100 is engaged with each other via bonding material layer 120 and 140 with transparent substrates 110 and 130.
In the first above-mentioned exemplary embodiment, wiring pattern and sensing electrode pattern can use identical material.And, can realize wiring pattern, sensing electrode pattern and metal pattern by identical material.; during realizing sensing electrode pattern, wiring pattern and metal pattern, can use following technique: use such as the conductive material of Ag, Al or Cu etc. instead of with above-mentioned transparent electrode material and form sensing electrode pattern, wiring pattern or metal pattern simultaneously.This can solve following problems: while using ITO material to form electrode pattern, pattern form is shown, and because cause increasing manufacturing cost as the ITO material of expensive material, and be difficult to produce the structure with ITO material layer on two surfaces of single base substrate because of the degradation of the film hardness of ITO material.And, can provide in reducing manufacturing cost by following technique, be not subject to the degradation impacts ground of film hardness, realize the technique of the degree of freedom of various designs: each pattern that simultaneously forms live part X, wiring portion Y and icon part Z by formation in optical substrate and patterning conductive material instead of ITO material.
2. the second exemplary embodiment
Fig. 5 be illustrated in shown in Fig. 4 according to the figure of another example of touch window of the present invention.Live part X, the wiring portion Y shown in Fig. 5 and the arrangement of icon part Z, at the pattern of 200 times printing printings of transparent window with carry out patterning icon 202 with open type identical with Fig. 4.But Fig. 5 and Fig. 4 do not coexist: during being formed on the sensing cell of 200 times formation of transparent window, realize respectively the first sensing electrode pattern 232 and the second sensing electrode pattern 212 on two surfaces of single transparent substrates 230.
And, on a surface of transparent substrates 230, in the plane identical with the first sensing electrode pattern 232, form wiring portion and the metal pattern part 233 corresponding with icon.And, shown in structure in, can in the plane identical with the second sensing electrode pattern 212, form metal pattern part 233.
3. the 3rd exemplary embodiment
Fig. 6 illustrates another exemplary embodiment different from the first and second exemplary embodiments as above.The arrangement of live part X, wiring portion Y and icon part Z is similar, but difference is directly to form the first sensing electrode pattern 332 on a surface of transparent window 100, and also in the plane identical with the first sensing electrode pattern 332, forms wiring pattern 311 and metal pattern 313.
In this configuration, on a surface of transparent window 100, directly form the first sensing electrode pattern 332 corresponding to the concept that comprises following part: as shown in the figure, by deposition, apply and be printed on the surface of transparent substrates and directly form, and thin layer independently not; Or, by etching optionally independently film-substrate (for example, ito thin film etc.) realize pattern.
And, can on formation the second sensing electrode pattern 312 of transparent substrates 330 and the same level of wiring pattern 331, form metal pattern 313, be undertaken by the Patternized technique of carrying out the second sensing electrode pattern 312 forming on a surface of transparent substrates 330 simultaneously.
4. the 4th exemplary embodiment
Below, describe according to the structure of the touch window of the exemplary embodiment of the present invention as the 4th exemplary embodiment with reference to Fig. 7.
Difference between the structure of the 4th exemplary embodiment and the structure of the 3rd exemplary embodiment is, although similar on the arrangement of live part X, wiring portion Y and icon part Z, on a surface of transparent window 400, directly form the first sensing electrode pattern 410 and the second sensing electrode pattern 420 simultaneously.In addition, can in the plane identical with the first and second sensing electrode patterns 410 and 420, form metal pattern part 440.
And the first sensing electrode pattern 410 and the second sensing electrode pattern 420 are patterned and are separated from each other to be electrically insulated from each other simultaneously., realize at grade the first and second sensing electrode patterns.Can on a surface, (for example be used for definite the first axle touching by patterning, X-axis) the first sensing electrode layer of component, and can for example carry out patterning, for determining the second sensing electrode layer of the second axle (, Y-axis) component of touch by realizing the layout of wherein the second sensing electrode layer and the first sensing electrode layer insulation.
Fig. 8 illustrates for realizing light transmission pattern to control the exemplary embodiment of transmissivity in metal pattern part.
Referring to Fig. 7 and Fig. 8, form metal pattern part 440 with the structure that wherein forms predetermined light transmission pattern, control thus transmittance., can realize with network, web frame or the rule as shown in the structure of Fig. 8 B or irregular smooth transmission pattern the lower metal pattern part of arranging of icon (IC) of the open architecture forming of Fig. 8 on printed patterns 401.The implementation of light transmission pattern forms meticulous beam orifice by the selective etch in formation metal pattern part 440 during photoetching process, and therefore, can form light transmission pattern to realize the structure of optical transmission effect and reflecting effect.
For example, have when comprising in metal pattern part 440 or applying Ag or there is the structure of material of high reflectance when light transmission pattern is formed, can realize together because the reflecting effect that metal particle causes or because the light transmission effects that beam orifice causes.As reflecting material, can use such as TiO 2, CaCO 3, BaSO 4, Al 2o 3, silicon, PS and Al etc. material.
Referring to have the structure shown in Fig. 8, according to the touch window of exemplary embodiment of the present invention, according to the coupling of the touch window of exemplary embodiment of the present invention and Liquid Crystal Module (L), to be applied to various display device.
For example, as shown in Figure 8, in the liquid crystal display as using back light unit (BLU) as the passive light-emitting device of light emitting module, there is the top that the touch window of said structure can be coupled to liquid crystal display, this liquid crystal display comprises Liquid Crystal Module, and this Liquid Crystal Module comprises thin film transistor (TFT) 520, liquid crystal 530, color filter 540 and multiple polarizing coatings 510 and 550.In this case, the path (arrow) according to the light transmission pattern transmission of the metal pattern part 440 of the touch window 400 of exemplary embodiment of the present invention from the light of back light unit transmitting, to realize lighting function in various icons.
Fig. 9 illustrates the various realization examples of realizing light transmission pattern in the structure of Fig. 8 for realizing in metal pattern part 440.
There is the icon in printed patterns 401 (IC) function of open architecture by metal pattern part with at its lower light transmission pattern of arranging, realize transmission effects and reflecting effect by light transmission by reflection simultaneously simultaneously.
Although illustrate and described the present invention with reference to its exemplary embodiment, but those skilled in the art can understand, in the case of not departing from the spirit and scope of the present invention defined by the appended claims, can carry out therein various changes in form and details.Therefore, scope of the present invention is by detailed description of the present invention but limited by appended claim, and all difference in this scope will be interpreted as being included in the present invention.
1. touch a window, comprising:
Sensing cell, for being disposed in described transparent window, and carrys out sensing touch by sensing electrode pattern;
Wiring portion, for being electrically connected to described sensing electrode pattern; And
Metal pattern part, for being connected function with the end of described wiring portion.
2. touch window according to claim 2, wherein, described sensing cell is included in the first sensing electrode pattern and the second sensing electrode pattern of patterning in transparent substrates, and described transparent substrates is via bonding material layer and the coupling of described transparent window.
3. touch window according to claim 2 wherein, is arranged described metal pattern part in the plane identical with described the first sensing electrode pattern or described the second sensing electrode pattern.
4. touch window according to claim 3, wherein, described sensing cell has following structure: in this structure, the first sensing electrode pattern and described the second sensing electrode pattern described in patterning on a surface of same transparent substrates, make described the first sensing electrode pattern and described the second sensing electrode pattern insulated from each other.
5. touch window according to claim 3, wherein, described sensing cell has following structure: in this structure, and respectively the first sensing electrode pattern and described the second sensing electrode pattern described in patterning on a surface of same transparent substrates and on another surface.
6. touch window according to claim 3, wherein, described sensing cell has following structure: in this structure, respectively the first sensing electrode pattern and described the second sensing electrode pattern described in patterning on the surface of different transparent substrates.
7. touch window according to claim 1, wherein, described sensing cell comprises:
The first sensing electrode pattern of patterning on a surface on described transparent window; And
The second sensing electrode pattern of patterning in described transparent substrates, described transparent substrates is via described bonding material layer and the coupling of described transparent window.
8. touch window according to claim 7 wherein, forms described metal pattern part in described transparent window.
9. touch window according to claim 1, wherein, described sensing cell is included in described the first sensing electrode pattern and the described second sensing electrode pattern of direct patterning on a surface of described transparent window, and wherein said the first sensing electrode pattern and described the second sensing electrode pattern are insulated from each other.
10. touch window according to claim 9 wherein, is arranged described metal pattern part on described transparent window.
11. according to the touch window described in any one of claim 1 to 10, and wherein, described metal pattern part realizes light transmission pattern in described metal pattern part, to control transmissivity.
12. according to the touch window described in any one of claim 1 to 10, and wherein, described transparent substrates is membraneous material or glass material.
13. touch windows according to claim 12, wherein, described membraneous material is made up of any in following substances: polyethylene terephthalate (PET), polycarbonate (PC), polyethersulfone (PES), polyimide (PI) and polymethylmethacrylate (PMMA).
14. touch windows according to claim 12, wherein, described the first sensing electrode pattern and described the second sensing electrode pattern are any in indium tin oxide (ITO), indium-zinc oxide (IZO) and zinc paste (ZnO).
15. touch windows according to claim 12, wherein, described wiring portion and described metal pattern part are made up of identical material.
16. touch windows according to claim 12, wherein, described wiring portion and described metal pattern part are made up of Ag.
17. touch windows according to claim 15, wherein, described metal pattern part further comprises TiO 2, CaCO 3, BaSO 4, Al 2o 3, any reflecting material in silicon, PS and Al.
18. touch windows according to claim 15, wherein, described the first sensing electrode pattern and the second sensing electrode pattern, described wiring pattern and described metal pattern part are made up of identical material.
19. 1 kinds of liquid crystal display, comprising:
Back light unit, for utilizing emitted light;
Liquid Crystal Module, it comprises color filter and thin film transistor (TFT), described thin film transistor (TFT) receives from the light of described back light unit transmitting; And
Touch window described in claim 12.
CN201180073847.7A 2011-07-28 2011-11-02 Touch window and use its LCD CN103858077B (en)
CN103858077A true CN103858077A (en) 2014-06-11
CN103858077B CN103858077B (en) 2017-09-19
CN201180073847.7A CN103858077B (en) 2011-07-28 2011-11-02 Touch window and use its LCD
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