Color filter substrate and in-cell touch display device

• US 10,216,332 B2
• Filed: 07/15/2016
• Issued: 02/26/2019
• Est. Priority Date: 01/04/2016
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd., Ordos Yuansheng Optoelectronics Co., Ltd. (BOE Technology Group Co., Ltd.)
• Original Assignee: BOE Technology Group Co., Ltd., Ordos Yuansheng Optoelectronics Co., Ltd. (BOE Technology Group Co., Ltd.)
• Inventors: Sun, Le, Fang, Yezhou, Pan, Zhengwen, Zhang, Wei, Zhang, Kunpeng
• Primary Examiner(s): Giesy, Adam R.
• Application Number:
  US15/504,144
• Publication Number:
  US 20180107337A1
• Time in Patent Office: 956 Days
• CPC Class Codes: G02B 1/16 having an anti-static effect, e.g. electrically conducting coatings
• CPC Class Codes: G02B 5/201 in the form of arrays
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/133388 with constructional differences between the display region and the peripheral region
• CPC Class Codes: G02F 1/133512 Light shielding layers, e.g. black matrix G02F1/136209 takes precedence
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 1/13452 Conductors connecting driver circuitry and terminals of panels
• CPC Class Codes: G02F 2202/22 Antistatic materials or arrangements
• CPC Class Codes: G06F 2203/04107 Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04184 Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: H05K 1/0259 Electrostatic discharge [ESD] protection
• CPC Class Codes: H05K 2201/10128 Display

Abstract

A color filter substrate and an in-cell touch display device are disclosed. The color filter substrate including a display region and a non-display region surrounding the display region, wherein the color filter substrate further includes a conductive antistatic layer, and the antistatic layer is only disposed in the non-display region. The in-cell touch display device can eliminate static electricity under the premise of having no influence on touch function, and the in-cell touch display device is provided with an enhanced anti-electrostatic capability.

Claims

1. A color filter substrate comprising a display region and a non-display region surrounding the display region, wherein the color filter substrate further comprises a conductive antistatic layer, and the antistatic layer is only disposed in the non-display region;

and

wherein the color filter substrate further comprises a base substrate, and a planarization layer, an alignment film and a conductive member which are located on the base substrate, wherein the planarization layer covers the base substrate with the antistatic layer formed thereon, the color filter substrate further comprises a via hole, the via hole passes through the planarization layer and the alignment film, and the conductive member is connected with the antistatic layer through the via hole; and

wherein the conductive member is only disposed in the non-display region.

2. The color filter substrate according to claim 1, further comprising a black matrix located on the base substrate, wherein the black matrix and the antistatic layer are located on a same side of the base substrate.

3. The color filter substrate according to claim 2, wherein the antistatic layer is located on the black matrix and in contact with the black matrix.

4. The color filter substrate according to claim 1, wherein the antistatic layer is annular and surrounds a whole circumference of the display region.

5. The color filter substrate according to claim 1, wherein a material of the antistatic layer is metal or metal oxide.

6. The color filter substrate according to claim 1, further comprising a touch layer disposed on the base substrate, wherein a pattern of the touch layer and a pattern of the antistatic layer do not overlap in a direction perpendicular to the base substrate.

7. A touch display device comprising an array substrate and a color filter substrate according to claim 1.

8. The touch display device according to claim 7, wherein the antistatic layer of the color filter substrate is electrically connected with a first ground terminal of the array substrate.

9. A touch display device comprising an array substrate and a color filter substrate, the color filter substrate comprising a display region and a non-display region surrounding the display region, wherein the color filter substrate further comprises a conductive antistatic layer, and the antistatic layer is only disposed in the non-display region;

wherein the antistatic layer of the color filter substrate is electrically connected with a first ground terminal of the array substrate, and

wherein the touch display device further comprises a second ground terminal and a driving circuit module, wherein the second ground terminal is disposed on a position of the array substrate where is opposite to the color filter substrate, and the driving circuit module is disposed on an edge portion of the array substrate where is not opposite to the color filter substrate, the first ground terminal is integrated in the driving circuit module, and the first ground terminal is electrically connected with the second ground terminal.

10. The touch display device according to claim 9, wherein the color filter substrate further comprises a base substrate, and a black matrix, a planarization layer, an alignment film and a conductive member which are disposed on the base substrate, and the black matrix, the antistatic layer, the planarization layer, the alignment film and the conductive member are disposed on a side of the base substrate filter of the color substrate close to the array substrate in sequence, and the conductive member is connected with the second ground terminal.

11. The touch display device according to claim 9, wherein the color filter substrate further comprises a base substrate, and a black matrix, an alignment film which are disposed on the base substrate, and the black matrix, the alignment film and the antistatic layer are disposed on a side of the base substrate of the color filter substrate close to the array substrate in sequence, and the antistatic layer is connected with the second ground terminal.

12. The touch display device according to claim 9, wherein the color filter substrate further comprises an alignment film located on the base substrate, wherein the antistatic layer is in contact with the alignment film and located on the alignment film.

13. The touch display device according to claim 9, wherein the color filter substrate further comprises a base substrate, and a planarization layer, an alignment film and a conductive member which are located on the base substrate, wherein the planarization layer covers the base substrate with the antistatic layer formed thereon, the color filter substrate further comprises a via hole, the via hole passes through the planarization layer and the alignment film, and the conductive member is connected with the antistatic layer through the via hole.

14. The touch display device according to claim 13, wherein the conductive member is only disposed in the non-display region.

15. A touch display device comprising an array substrate and a color filter substrate, the color filter substrate comprising a base substrate, and a touch layer and an antistatic layer which are disposed on the base substrate, wherein a pattern of the touch layer and a pattern of the antistatic layer do not overlap in a direction perpendicular to the base substrate;

wherein the antistatic layer of the color filter substrate is electrically connected with a first ground terminal of the array substrate; and

wherein the touch display device further comprises a second ground terminal and a driving circuit module, wherein the second ground terminal is disposed on a position of the array substrate where is opposite to the color filter substrate, and the driving circuit module is disposed on an edge portion of the array substrate where is not opposite to the color filter substrate, the first ground terminal is integrated in the driving circuit module, and the first ground terminal is electrically connected with the second ground terminal.

16. The touch display device according to claim 15, wherein the color filter substrate further comprises a base substrate, and a black matrix, a planarization layer, an alignment film and a conductive member which are disposed on the base substrate, and the black matrix, the antistatic layer, the planarization layer, the alignment film and the conductive member are disposed on a side of the base substrate of the color filter substrate close to the array substrate in sequence, and the conductive member is connected with the second ground terminal.

17. The touch display device according to claim 15, wherein the color filter substrate comprises a base substrate, and a black matrix and an alignment film which are disposed on the base substrate, and the black matrix, the alignment film and the antistatic layer are disposed on a side of the base substrate of the color filter substrate close to the array substrate in sequence, and the antistatic layer is connected with the second ground terminal.

18. The touch display device according to claim 15, wherein the color filter substrate further comprises an alignment film located on the base substrate, wherein the antistatic layer is in contact with the alignment film and located on the alignment film.

19. The touch display device according to claim 15, wherein the color filter substrate further comprises a base substrate, and a planarization layer, an alignment film and a conductive member which are located on the base substrate, wherein the planarization layer covers the base substrate with the antistatic layer formed thereon, the color filter substrate further comprises a via hole, the via hole passes through the planarization layer and the alignment film, and the conductive member is connected with the antistatic layer through the via hole.

20. The touch display device according to claim 19, wherein the conductive member is only disposed in the non-display region.