Display panel and display device

• US 10,551,663 B2
• Filed: 05/04/2017
• Issued: 02/04/2020
• Est. Priority Date: 09/21/2016
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd., Hefei BOE Optoelectronics Technology Company Limited (BOE Technology Group Co., Ltd.)
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Gu, Honggang, Shao, Xianjie, Song, Jie, Zhang, Zhen
• Primary Examiner(s): Lam, Vinh T
• Application Number:
  US15/569,248
• Publication Number:
  US 20180299724A1
• Time in Patent Office: 1,006 Days
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133334 Electromagnetic shields
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• 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 1/1339 Gaskets; Spacers; Sealing of cells
• CPC Class Codes: G02F 2201/503 Arrangements improving the resistance to shock
• CPC Class Codes: G02F 2202/22 Antistatic materials or arrangements
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display

Abstract

A display panel and a display device are provided. The display panel has a display region and a peripheral region on a periphery of the display region and includes: an array substrate; an opposed substrate, opposite to the array substrate; a sealant, in the peripheral region so that the array substrate and the opposed substrate are bonded to form a cell; and a black matrix layer, between the array substrate and the opposed substrate. At least one opening in the peripheral region is provided in the black matrix layer, the at least one opening includes a first annular opening which is between the sealant and the display region and surrounds the display region, and the black matrix layer is disconnected at a position of the at least one opening.

Claims

1. A display panel, having a display region and a peripheral region on a periphery of the display region, and comprising:

an array substrate;

an opposed substrate, opposite to the array substrate;

a sealant, in the peripheral region so that the array substrate and the opposed substrate are bonded to form a cell; and

a black matrix layer, between the array substrate and the opposed substrate, wherein at least one opening in the peripheral region is provided in the black matrix layer, the at least one opening comprises a first annular opening which is between the sealant and the display region and surrounds the display region, and the black matrix layer is disconnected at a position of the at least one opening,

wherein the first annular opening is a closed annular structure, the first annular opening divides the black matrix layer in the peripheral region into an inner part and an outer part which are not connected to each other, wherein the inner part of the black matrix layer is at a side, which is close to the display region, of the first annular opening, and the outer part of the black matrix layer is at a side, which is away from the display region, of the first annular opening, and wherein the outer part surrounds the first annular opening, and

wherein the at least one opening further comprises a non-annular opening in the outer part of the black matrix layer and spaced from the first annular opening by a portion of the outer part of the black matrix layer.

2. The display panel according to claim 1, wherein the black matrix layer is on a side, facing the array substrate, of the opposed substrate.

3. The display panel according to claim 1, wherein the at least one opening further comprises a second annular opening which surrounds the display region, and the second annular opening at least partially overlaps the sealant.

4. The display panel according to claim 1, wherein the non-annular opening at least partially overlaps the sealant or is between the sealant and the display region.

5. The display panel according to claim 3, further comprising a touch electrode layer, wherein

the touch electrode layer is on the opposed substrate, and is on a side, away from the array substrate, of the opposed substrate or on a side, facing the array substrate, of the opposed substrate;

or

the touch electrode layer is on the array substrate.

6. The display panel according to claim 1, further comprising an electrostatic shielding layer, wherein the electrostatic shielding layer is on a side, away from the array substrate, of the opposed substrate.

7. The display panel according to claim 1, wherein a distance between the first annular opening and the display region is greater than or equal to 50 micrometers.

8. The display panel according to claim 1, further comprising a light-shielding layer, wherein the light-shielding layer is between the opposed substrate and the array substrate and the light-shielding layer overlaps the first annular opening.

9. The display panel according to claim 8, wherein the light-shielding layer comprises a color filter layer overlapping the first annular opening.

10. The display panel according to claim 9, wherein the color filter layer comprises a blue color filter pattern, and the blue color filter pattern overlaps the first annular opening.

11. The display panel according to claim 8, wherein the light-shielding layer comprises a metal layer overlapping the first annular opening.

12. The display panel according to claim 1, further comprising a conductive adhesive, wherein the conductive adhesive is on an outer side of the sealant and connected to the opposed substrate and the array substrate, and the conductive adhesive is grounded.

13. The display panel according to claim 12, wherein a groove is in the conductive adhesive, and the groove separates the conductive adhesive from the black matrix layer.

14. A display device, comprising the display panel according to claim 1.

15. The display panel according to claim 3, wherein the non-annular opening at least partially overlaps the sealant or is between the sealant and the display region.

16. The display panel according to claim 4, further comprising a touch electrode layer, wherein

the touch electrode layer is on the opposed substrate, and is on a side, away from the array substrate, of the opposed substrate or on a side, facing the array substrate, of the opposed substrate;

or

the touch electrode layer is on the array substrate.

17. The display panel according to claim 2, further comprising an electrostatic shielding layer, wherein the electrostatic shielding layer is on a side, away from the array substrate, of the opposed substrate.

18. The display panel according to claim 2, wherein a distance between the first annular opening and the display region is greater than or equal to 50 micrometers.

19. The display panel according to claim 2, further comprising a light-shielding layer, wherein the light-shielding layer is between the opposed substrate and the array substrate and the light-shielding layer overlaps the first annular opening.

20. The display panel according to claim 9, wherein the light-shielding layer comprises a metal layer overlapping the first annular opening.