Display Panel and Display Device

• US 20200133052A1
• Filed: 12/23/2019
• Published: 04/30/2020
• 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: Hefei BOE Optoelectronics Technology Company Limited (BOE Technology Group Co., Ltd.)
• Inventors: Gu, Honggang, Shao, Xianjie, Song, Jie, Zhang, Zhen
• Granted Patent: US 10,921,634 B2
• Time in Patent Office: Days
• CPC Class Codes: G02F 1/133334 Electromagnetic shields
• CPC Class Codes: G02F 1/133512 Light shielding layers, e.g. black matrix G02F1/136209 takes precedence
• CPC Class Codes: G02F 1/1339 Gaskets; Spacers; Sealing of cells
• CPC Class Codes: G02F 1/136204 Arrangements to prevent high voltage or static electricity failures
• 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: G02F 2202/28 Adhesive materials or arrangements

Abstract

A display panel and a display device are provided. The display panel has a display region and a peripheral region, a black matrix layer including a portion in the peripheral region; a first annular opening surrounding the display region and a second annular opening surrounding the first annular opening and on a side, away from the display region, of the first annular opening are provided in the portion of the black matrix layer; the first annular opening divides the portion of the black matrix layer into an inner part close to the display region and an outer part away from the display region; the second annular opening divides the outer part into a first part close to the display region and a second part away from the display region; both the first annular opening and the second annular opening are closed annular.

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; and

a black matrix layer, between the array substrate and the opposed substrate, wherein the black matrix layer comprises a portion in the peripheral region, at least one opening in the peripheral region is provided in the black matrix layer, and the at least one opening comprises;

a first annular opening surrounding the display region, wherein the portion in the peripheral region of the black matrix layer is disconnected at a position of the first annular opening, the first annular opening divides the portion in the peripheral region of the black matrix layer into an inner part and an outer part which are not connected to each other, the inner part is on a side, close to the display region, of the first annular opening, and the outer part is on a side, away from the display region, of the first annular opening; and

a second annular opening surrounding the first annular opening and on a side, away from the display region, of the first annular opening, wherein the outer part is disconnected at a position of the second annular opening, the second annular opening divides the outer part in the peripheral region into a first part and a second part which are not connected to each other, the first part is on a side, close to the display region, of the second annular opening, and the second part is on a side, away from the display region, of the second annular opening;

both the first annular opening and the second annular opening are closed annular.

2. The display panel according to claim 1, further comprising:

a conductive adhesive connected to the opposed substrate and the array substrate, and electrically connected to the second part of the black matrix layer, and the conductive adhesive is grounded.

3. The display panel according to claim 2, further comprising:

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

the first annular opening at least partially overlaps the sealant in a direction perpendicular to the array substrate or is between the sealant and the display region, and the second annular opening at least partially overlaps the sealant in the direction perpendicular to the array substrate or is between the sealant and the display region.

4. The display panel according to claim 3, wherein the conductive adhesive is on a side, away from the display region, of the sealant.

5. The display panel according to claim 3, further comprising:

a non-annular opening in the second part and spaced apart from the second annular opening, wherein

the second part is disconnected at a position of the non-annular opening, the non-annular opening comprises a first terminal and a second terminal, the first terminal is opposite to the second terminal in an extension direction of the non-annular opening, and both the first terminal and the second terminal are flush with an edge, away from the display region, of the black matrix layer;

the non-annular opening divides the second part into a third part and a fourth part which are not connected to each other, the third part is on a side, close to the display region, of the non-annular opening, and the fourth part is on a side, away from the display region, of the non-annular opening;

the fourth part is electrically connected to the conductive adhesive.

6. The display panel according to claim 5, wherein a planar shape of the display panel is a rectangle, the first terminal of the non-annular opening is close to a first edge of the rectangle, and the second terminal of the non-annular opening is close to a second edge of the rectangle;

the first edge and the second edge are opposite to each other, or the first edge and the second edge are a same edge, or the first edge and the second edge are adjacent to each other.

7. The display panel according to claim 5, wherein a planar shape of an entirety of the non-annular opening is a straight strip, or a planar shape of the non-annular opening comprises a curved strip.

8. The display panel according to claim 5, wherein the non-annular opening at least partially overlaps the sealant in the direction perpendicular to the opposite substrate.

9. The display panel according to claim 2, wherein the conductive adhesive is electrically connected to the second part of the black matrix layer at a plurality of positions.

10. The display panel according to claim 5, wherein the at least one openings comprise a plurality of the non-annular openings, and the black matrix layer comprises a plurality of the fourth parts;

the conductive adhesive is electrically connected to all the plurality of the fourth parts.

11. 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.

12. 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 and the second annular opening at a direction perpendicular to the array substrate.

13. The display panel according to claim 12, wherein the light-shielding layer comprises a color filter layer overlapping the first annular opening and the second annular opening.

14. The display panel according to claim 13, wherein the color filter layer comprises a blue color filter pattern, and the blue color filter pattern overlaps the first annular opening and the second annular opening.

15. The display panel according to claim 12, wherein the light-shielding layer comprises a metal layer overlapping the first annular opening and the second annular opening.

16. The display panel according to claim 2, wherein a groove is in the conductive adhesive, and the groove separates the conductive adhesive from the black matrix layer.

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

18. 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; and

a black matrix layer, between the array substrate and the opposed substrate, wherein the black matrix layer comprises a portion in the peripheral region, at least one opening in the peripheral region is provided in the black matrix layer, and the at least one opening comprises;

a first annular opening surrounding the display region, wherein the portion in the peripheral region of the black matrix layer is disconnected at a position of the first annular opening, the first annular opening divides the portion in the peripheral region of the black matrix layer into an inner part and an outer part which are not connected to each other, the inner part is on a side, close to the display region, of the first annular opening, and the outer part is on a side, away from the display region, of the first annular opening; and

a non-annular opening in the outer part and spaced from the first annular opening, wherein the outer part is disconnected at a position of the non-annular opening, the non-annular opening comprises a first terminal and a second terminal, the first terminal is opposite to the second terminal in an extension direction of the non-annular opening, and both the first terminal and the second terminal are flush with an edge, away from the display region, of the black matrix layer;

the non-annular opening divides the outer part into a first part and a second part which are not connected to each other, the first part is on a side, close to the display region, of the non-annular opening, and the second part is on a side, away from the display region, of the non-annular opening.

19. The display panel according to claim 18, wherein a planar shape of the display panel is rectangle, the first terminal of the non-annular opening is close to a first edge of the rectangle, and the second terminal of the non-annular opening is close to a second edge of the rectangle;

the first edge and the second edge are opposite to each other, or the first edge and the second edge are a same edge, or the first edge and the second edge are adjacent to each other.

20. The display panel according to claim 19, further comprising:

a conductive adhesive connected to the opposed substrate and the array substrate, and electrically connected to the second part of the black matrix layer, and the conductive adhesive is grounded.