Source: https://patents.google.com/patent/KR20170109139A/en
Timestamp: 2019-11-21 01:53:45
Document Index: 84938452

Matched Legal Cases: ['art 32', 'arts 34', 'art 35', 'art 31', 'art 32', 'art 31', 'art 32']

KR20170109139A - Display device - Google Patents
KR20170109139A
KR20170109139A KR1020160032369A KR20160032369A KR20170109139A KR 20170109139 A KR20170109139 A KR 20170109139A KR 1020160032369 A KR1020160032369 A KR 1020160032369A KR 20160032369 A KR20160032369 A KR 20160032369A KR 20170109139 A KR20170109139 A KR 20170109139A
KR1020160032369A
2016-03-17 Application filed by 삼성디스플레이 주식회사 filed Critical 삼성디스플레이 주식회사
2016-03-17 Priority to KR1020160032369A priority Critical patent/KR20170109139A/en
2017-09-28 Publication of KR20170109139A publication Critical patent/KR20170109139A/en
A display device according to an embodiment of the present invention includes a flat portion for displaying an image on a front surface, a curved portion for curving both ends of the flat portion along one direction and displaying an image, A first display unit and a second display unit each including a side portion for displaying an image and being positioned on the same side and joined to each other at the side portion, and an adhesive layer for bonding the first display unit and the second display unit .
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device, and more particularly, to a display device having a display screen with an expanded area.
2. Description of the Related Art In recent years, a flexible display device has been spotlighted as a next-generation display device, and a curved surface display device in which at least a part of the flexible display device is bent or bent can be actively developed.
The curved surface display device may be configured such that the entire display panel is curved at a constant curvature or includes curved portions bent at both side ends along one direction of the display panel. Such a curved surface display device is attached and assembled to the set frame by an adhesive tape or a viscous liquid provided on the edge.
The curved display device is capable of displaying an image only on one surface, and does not display an image on the side and rear surfaces, and a display device capable of displaying an image on the entire surface has recently been developed.
An object of the present invention is to provide a display device in which two curved surface display units are combined through a coupling member formed of a transparent material so that an image can be displayed on the whole surface.
According to an embodiment of the present invention, there is provided an image display apparatus including: a flat portion for displaying an image on a front surface; a curved portion for curving both ends of the flat portion along one direction and displaying an image; A first display unit and a second display unit each including a side surface for displaying an image on a side surface and positioned on the same side and joined to each other at the side surface portion and an adhesive layer for bonding the first display unit and the second display unit to each other And a display device including the display device.
Further comprising an engaging member which covers the side portion of the first display unit and the side portion of the second display unit and which engages the first display unit and the second display unit, can do.
Wherein the engaging member extends from the central portion of the engaging member toward the flat portion of the first display unit and is coupled to the first display unit, a second engaging portion extending from the center portion toward the flat portion of the second display unit, 2 display unit, and a support protruding from the central portion toward the side portions of the first display unit and the second display unit.
The support base may extend and correspond to the longitudinal direction of the side surface portion.
Wherein the engaging member is located at an end of the first engaging portion and includes a first fixing portion that fixes the engaging member to the first display unit and a second fixing portion that is located at an end of the second engaging portion, And a second fixing part fixing the second fixing part.
The first engaging portion or the second engaging portion extending from the center portion may have an inclination angle inclined by 1 to 89 degrees with respect to the surface of the side portion.
The first engaging portion or the second engaging portion may have an inclination angle inclined by 1 to 10 degrees with respect to the surface of the side portion.
There may be a space between the side portion and the engagement member.
The engaging member may include at least one of polycarbonate and acrylic.
The adhesive layer may include at least one of a pressure sensitive adhesive (PSA), an optically clear adhesive (OCA), a silicone adhesive, and an acrylic adhesive.
Wherein the adhesive layer includes an inner surface adhesion area bonded to at least a portion of the inner surface of the side portion, a panel adhesion area for bonding the first display panel and the second display panel, the first cover window and the second cover window And the thickness of the inner surface adhesion area, the panel adhesion area, and the window adhesion area may be different from each other.
The thickness of the inner surface bonding region may be thicker than the thickness of the panel bonding region and the thickness of the panel bonding region may be thicker than the thickness of the window bonding region.
The adhesive layer may further include a light shielding material.
Wherein the first display unit includes a first display panel that displays an image and a first cover window that covers a display surface of the first display panel, the second display unit includes a second display panel that displays an image, And a second cover window covering the display surface of the second display panel.
As described above, according to the embodiment of the present invention, the two curved surface display units are coupled through the coupling member formed of the transparent material, so that the image can be displayed on the whole surface of the display device.
3 is a perspective view illustrating a coupling member according to an embodiment of the present invention.
5 is a pixel circuit diagram of a display panel according to an embodiment of the present invention.
6 is a cross-sectional view of one pixel of a display panel according to an embodiment of the present invention.
Throughout the specification, the term "thickness" means the distance in the z-axis direction in the drawing, and the term "length"
Now, a display device according to an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing a display device according to an embodiment of the present invention, FIG. 2 is a sectional view taken along a line II-II in FIG. 1, FIG. 3 is a perspective view showing a coupling member according to an embodiment of the present invention, to be.
1 to 3, a display device 100 according to an exemplary embodiment of the present invention includes a flat portion P for displaying an image in front, a curved portion C having both ends bent along one direction, The first display unit 110 and the second display unit 220 including the side portion S for displaying an image on the side surface constitute the upper portion and the lower portion of the display device 100, respectively. The first display unit 110 and the second display unit 220 can display an image on the flat portion P, the curved portion C and the side portion S as a whole. That is, the display device 100 can display an image on the upper and lower surfaces of the display device 100 and on the entire surface of the side surface portion.
The first display unit 110 and the second display unit 220 are positioned back to back and are joined to each other at the side portion S. That is, the first display unit 110 and the second display unit 220 are positioned and joined to each other so as to face each other, which is the opposite side of the flat portion P for displaying the respective images.
The adhesive layer 40 is positioned on the side surface S of the first display unit 110 and the second display unit 220 so that the first display unit 110 and the second display unit 220 can be bonded to each other. have.
An engaging member 30 reinforcing the engagement of the two display units 110 and 220 bonded to each other is fixed to the side portion S of the first display unit 110 and the second display unit 220. [
The first display unit 110 includes a first display panel 10 and a first cover window 20 positioned on the surface of the first display panel 10 to protect the surface of the first display panel 10 The second display unit 220 includes a second cover window 60 that is located on the surfaces of the second display panel 50 and the second display panel 50 and protects the surface of the second display panel 50 .
The first display panel 10 and the second display panel 50 may be a flexible display panel including a substrate (not shown) formed of a flexible polymer. A plurality of signal lines (not shown) and a plurality of pixels (not shown) including a plurality of scan lines and a plurality of data lines may be located in the display region of each of the display panels 10 and 50.
A configuration for driving a display device such as a circuit board for displaying an image may be formed on each of the first and second display units 110 and 220, which are formed as curved surfaces and coupled to each other. Accordingly, the supporting structure including the driving circuit substrate may be positioned between the first display unit 110 and the second display unit 220. [ The bezel area of the display device 100 can be minimized by arranging the structure of the drive circuit board and the like on the back surface of each of the first and second display units 110 and 220. [
The first display panel 10 and the second display panel 50 are formed at least partially in a bent shape. For example, each of the display panels 10 and 50 includes a flat portion P, a pair of curved portions C positioned at both ends of the flat portion P along one direction of the display panels 10 and 50, The display panel 10 and 50 may include a side portion S which is bent in a direction perpendicular to the flat portion P by the portion C. [
The cover windows 20 and 60 are located outside the display surfaces of the display panels 10 and 50 and are formed in a shape corresponding to the display panels 10 and 50. That is, the cover windows 20 and 60 cover the flat portion P, the curved portion C and the side portion S of the display panels 10 and 50 and are formed in the same shape as the display panels 10 and 50 .
The first display unit 110 and the second display unit 220 are bonded by an adhesive layer 40 including an adhesive at the outermost sides of the first display unit 110 and the second display unit 220.
The adhesive layer 40 may be formed of at least one of a pressure sensitive adhesive (PSA), an optically clear adhesive (OCA), a silicone adhesive, and an acrylic adhesive.
The engaging member 30 is continuously formed along the longitudinal direction of the side portion S on both side portions S of the display device 100 so as to cover the entirety of both side portions S of the display device 100, 20, and 60 so as to form the outer shape of the display device 100.
The engaging member 30 includes a first engaging portion 34 extending in one direction from the center portion and fixedly coupled to the surface of the first display unit 110 and a second engaging portion 34 extending in the other direction from the center portion and fixedly coupled to the surface of the second display unit 220 And a second fixing part 32 at the ends of the first and second coupling parts 34 and 35. The fixing part 35 includes a first fixing part 31 and a second fixing part 32, The engaging member 30 can be fixed to the display device 100 by the engaging members 31 and 32.
The first fixing part 31 fixes the engaging member 30 to the first display unit 110 and the second fixing part 32 fixes the engaging member 30 to the second display unit 220 The first fixing portion 31 is bent at a predetermined angle with respect to the first engaging portion 34 and the second fixing portion 32 is bent at a predetermined angle with respect to the second engaging portion 35. [
The coupling member 30 includes a support base 33 protruding from the central portion of the coupling member 30 toward the side surface portion S of the display device 100 so as to form a certain space between the coupling member 30 and the display device 100, As shown in FIG. The support base 33 may also be formed continuously extending along the longitudinal direction of the side surface S of the display device 100.
The surfaces of the first engaging portion 34 and the second engaging portion 35 extending from the support table 33 are pressed against the display device 100 by the support 33 protruding toward the side portion S of the display device 100 100 with respect to the plane of the side surface S of the base member.
The angle of the surface of each of the engaging portions 34 and 35 extending from the support table 33 may be in a range of 1 to 89 degrees with respect to the surface of the side surface S of the display device 100, Deg.].
It is possible to alleviate the impact that may be exerted on the display device 100 from the outside by forming a certain space between the engaging portions 34 and 35 of the engaging member 30 and the display device 100 through the support base 33 .
The engaging member 30 can be formed of a transparent material since the image displayed on both side portions S of the display device 100 can be externally displayed. The joining member 30 may be formed of transparent polycarbonate (PC) or transparent acrylic, for example.
By joining the two display units 110 and 220 by using the coupling member 30 formed of a transparent material, the coupling strength of the two display units 110 and 220 is excellent and the impact from the outside can be alleviated , It is possible to display an image on all the surfaces including the upper and lower surfaces and the side surfaces of the display device 100.
Further, the manufacturing process can be simplified and economical compared with the entire surface display device formed using one display panel.
Next, a display device according to another embodiment of the present invention will be described in detail with reference to FIG. 4
The display device according to another embodiment of the present invention shown in FIG. 4 is the same as that of the embodiment of FIG. 1 to FIG. 3 except for the structure of the adhesive layer.
4, the adhesive layer 45 of the display device according to another embodiment of the present invention includes an inner surface adhesive region (not shown) adhered to the inner surfaces of the side portions of the first display panel 10 and the second display panel 50 A panel adhesive region 45b for adhering the first and second display panels 10 and 50 and a window adhesive region 45c for adhering the first and second cover windows 20 and 60 to the first and second display panels 10 and 50.
The thicknesses Da, Db, and Dc of the respective bonding regions can be reduced toward the inner surface bonding region 45a, the panel bonding region 45b, and the window bonding region 45c.
By forming the adhesive regions 45a, 45b and 45c so that the thickness of the adhesive regions 45a, 45b and 45c decreases from the inside to the outside of the display device 100, the adhesive area between the adhesive layer 45 and the display device 100 can be widened, 110 and the second display unit 220 can be improved.
Further, the adhesive layer 45 according to another embodiment of the present invention may further include a light shielding material.
In the display device 100 according to another embodiment of the present invention, the bonding area of the adhesive layer 45 can be widened so that sufficient bonding strength can be obtained between the first display unit 110 and the second display unit 220 The coupling member according to the embodiment of Figs. 1 to 3 described above can be omitted.
The display device shown in Figs. 1 to 4 of the present invention may be composed of an organic light emitting display panel. In this case, the pixel formed on the display panel for implementing an image may include an organic light emitting device.
Hereinafter, pixels of a display panel according to an embodiment of the present invention will be briefly described with reference to FIGS. 5 to 6. FIG.
FIG. 5 is a pixel circuit diagram of a display panel according to an embodiment of the present invention, and FIG. 6 is a cross-sectional view of one pixel of a display panel according to an embodiment of the present invention.
Referring to FIGS. 5 and 6, the pixel includes an organic light emitting diode (LED) L1 and driving circuit portions T1, T2, and C1. The organic light emitting diode L1 includes a pixel electrode 161, an organic light emitting layer 162, and a common electrode 163. The driving circuit portions T1, T2 and C1 include at least two thin film transistors (switching transistor T1 and driving transistor T2) and at least one capacitor C1.
The switching transistor T1 is connected to the scan line SL1 and the data line DL1 and supplies a data voltage input from the data line DL1 to the driving transistor T2 according to a switching voltage input to the scan line SL1 send. The capacitor C1 is connected to the switching transistor T1 and the power supply line VDD and stores a voltage corresponding to a difference between a voltage received from the switching transistor T1 and a voltage supplied to the power supply line VDD.
A driving transistor (T2) is a power supply line (VDD) and the output current (I OLED) in proportion to the stored voltage and the square of the difference of the threshold voltage on the capacitor (C1) is connected to the capacitor (C1) to the organic light emitting diode (L1) And the organic light emitting diode L1 emits light with an intensity proportional to the output current I OLED . The driving transistor T2 may include a gate electrode 181 and source / drain electrodes 182 and 183 and the pixel electrode 161 may be connected to the drain electrode 183 of the driving transistor T2.
However, the organic light emitting display device shown in FIGS. 5 and 6 is only one example of the display panel. The display device according to the present embodiment is not limited to the above-described organic light emitting display device, A liquid crystal display device may be applied in addition to the organic light emitting display device.
As described above, according to the embodiment of the present invention, the two curved display devices are combined through the coupling member formed of the transparent material, so that the image can be displayed on the whole surface of the display device.
100: display device 110: first display unit
220: second display unit 10: first display panel
20: first cover window 50: second display panel
60: second cover window 30: engaging member
40, 45: Adhesive layer
A flat portion for displaying an image on the front side, a curved portion for curving both ends of the flat portion along one direction of the flat portion and displaying an image, and a side portion continuously connected to the curved portion and for displaying an image on the side, A first display unit and a second display unit which are positioned on the side portion and joined to each other,
And an adhesive layer for bonding the first display unit and the second display unit
Further comprising an engaging member that covers the side portion of the first display unit and the side portion of the second display unit and couples the first display unit and the second display unit.
Wherein the coupling member comprises a transparent material.
A first engaging portion extending from the central portion of the engaging member toward the flat portion of the first display unit and coupled to the first display unit,
A second engaging portion extending from the central portion toward the flat portion of the second display unit and coupled to the second display unit,
And a support protruding from the central portion toward the side portions of the first display unit and the second display unit.
And the support base extends to correspond to the longitudinal direction of the side surface portion.
A first fixing unit located at an end of the first coupling unit and fixing the coupling member to the first display unit,
And a second fixing unit positioned at an end of the second coupling unit and fixing the coupling member to the second display unit.
And the first engaging portion or the second engaging portion extending from the center portion has an inclination angle inclined by 1 to 89 degrees with respect to the surface of the side portion.
Wherein the first engaging portion or the second engaging portion has an inclination angle inclined by 1 to 10 degrees with respect to the surface of the side portion.
And a space is provided between the side surface portion and the engagement member.
Wherein the engaging member includes at least one of polycarbonate and acrylic.
Wherein the adhesive layer comprises at least one of a pressure sensitive adhesive (PSA), an optically clear adhesive (OCA), a silicone adhesive, and an acrylic adhesive.
Wherein the adhesive layer includes an inner surface adhesion area bonded to at least a portion of the inner surface of the side portion, a panel adhesion area for bonding the first display panel and the second display panel, the first cover window and the second cover window And a window adhesion region,
Wherein the thicknesses of the inner surface adhesion area, the panel adhesion area, and the window adhesion area are different from each other.
Wherein the thickness of the inner surface adhesion region is thicker than the thickness of the panel adhesion region,
Wherein the thickness of the panel adhesive region is thicker than the thickness of the window adhesive region.
Wherein the adhesive layer further comprises a light shielding material.
Wherein the first display unit includes a first display panel for displaying an image and a first cover window for covering a display surface of the first display panel,
And the second display unit includes a second display panel for displaying an image and a second cover window covering the display surface of the second display panel.
KR1020160032369A 2016-03-17 2016-03-17 Display device KR20170109139A (en)
KR1020160032369A KR20170109139A (en) 2016-03-17 2016-03-17 Display device
US15/458,669 US10390448B2 (en) 2016-03-17 2017-03-14 Curved display device having improved display area
KR20170109139A true KR20170109139A (en) 2017-09-28
ID=59848098
US (1) US10390448B2 (en)
KR (1) KR20170109139A (en)
WO2011001933A1 (en) * 2009-07-01 2011-01-06 シャープ株式会社 Display device
KR101482629B1 (en) 2011-06-30 2015-01-14 삼성디스플레이 주식회사 flexible display panel and the display apparatus comprising the flexible display panel
CN103681763B (en) * 2012-09-24 2016-08-10 乐金显示有限公司 Organic light-emitting display device
KR20150025875A (en) * 2013-08-30 2015-03-11 삼성디스플레이 주식회사 Bezel structure in display device and display device having the same
KR20150064337A (en) 2013-12-03 2015-06-11 엘지디스플레이 주식회사 Curved Display Device
KR20150099676A (en) 2014-02-22 2015-09-01 삼성전자주식회사 foldable electronic device having flexible display
2016-03-17 KR KR1020160032369A patent/KR20170109139A/en unknown
2017-03-14 US US15/458,669 patent/US10390448B2/en active Active
US10390448B2 (en) 2019-08-20
US20170273199A1 (en) 2017-09-21
US9565738B2 (en) 2017-02-07 Flexible display panel and display apparatus including the same
JP2008176263A (en) 2008-07-31 Liquid crystal display device
US8853941B2 (en) 2014-10-07 Organic light emitting diode display