Display panel and method for manufacturing the same, and display device

Patent metadata

Field	Value
Publication number	US-2023100946-A1
Application number	US-202117799979-A
Country	US
Kind code	A1
Filing date	May 14, 2021
Priority date	Jun 29, 2020
Publication date	Mar 30, 2023
Grant date	—

Abstract

A display panel having an active area includes: an array substrate and an opposite substrate disposed opposite to the array substrate. The array substrate includes a first substrate and a conductive structure disposed on the first substrate. The conductive structure is located on a side of the active area. On a side of the conductive structure away from the active area, a side surface of the conductive structure is substantially flush with a side surface of the first substrate. On the side where the conductive structure is located, an edge of an orthographic projection of the opposite substrate on a plane where the array substrate is located is located outside an edge of the array substrate.

First claim

1 . A display panel having an active area, the display panel comprising:
an array substrate including: a first substrate and a conductive structure disposed on the first substrate, wherein the conductive structure is located on a side of the active area; on a side of the conductive structure away from the active area, a side surface of the conductive structure is substantially flush with a side surface of the first substrate; and an opposite substrate disposed opposite to the array substrate, wherein on the side where the conductive structure is located, an edge of an orthographic projection of the opposite substrate on a plane where the array substrate is located is located outside an edge of the array substrate.

2 . The display panel according to claim 1 , wherein the array substrate further includes:
a plurality of gate lines disposed on the first substrate and located in the active area; and a first gate driving circuit disposed on the first substrate, wherein in an extension direction of the gate lines, the conductive structure and the first gate driving circuit are located on two opposite sides of the active area, respectively, wherein the plurality of gate lines are coupled to the conductive structure and the first gate driving circuit.

3 . The display panel according to claim 2 , wherein, on a side where the first gate driving circuit is located, a side surface of the opposite substrate is substantially flush with a side surface of the array substrate.

4 . The display panel according to claim 2 , wherein a distance, on the side where the conductive structure is located, between the edge of the array substrate and an edge of the active area is less than a distance, on a side where the first gate driving circuit is located, of an edge of the array substrate and an edge of the active area.

5 . The display panel according to claim 2 , wherein the conductive structure includes a remaining portion of a second gate driving circuit.

6 . The display panel according to claim 1 , wherein the conductive structure includes metal patterns; or the conductive structure includes metal patterns and semiconductor patterns.

7 . The display panel according to claim 2 , wherein the display panel further has a bonding area;
in a direction perpendicular to the extension direction of the gate lines, the bonding area is located on one of two opposite sides of the active area; on a side where the bonding area is located, an edge of the orthographic projection of the opposite substrate on the plane where the array substrate is located is located on an inner side of an edge of the array substrate.

8 . The display panel according to claim 7 , wherein in the direction perpendicular to the extension direction of the gate lines, on a side of the active area opposite to the bonding area, a side surface of the array substrate is substantially flush with a side surface of the opposite substrate; or
in the direction perpendicular to the extension direction of the gate lines, on the side of the active area opposite to the bonding area, an edge of the array substrate is located on an inner side of an edge of the orthographic projection of the opposite substrate on the plane where the array substrate is located.

9 . (canceled)

10 . The display panel according to claim 8 , wherein a distance, on the side where the conductive structure is located, between an edge of the array substrate and an edge of the active area is equal to a distance, on the side of the active area opposite to the bonding area, between an edge of the array substrate and an edge of the active area.

11 . The display panel according to claim 1 , wherein on the side where the conductive structure is located, a distance between an edge of the array substrate and an edge of the orthographic projection of the opposite substrate on the plane where the array substrate is located is in a range of 0.05 mm to 0.2 mm, inclusive.

12 . The display panel according to claim 1 , wherein the opposite substrate includes:
a second substrate; and a black matrix disposed on the second substrate, wherein the conductive structure is within an orthographic projection of the black matrix on the plane where the array substrate is located.

13 . The display panel according to claim 1 , further comprising: a frame sealant, wherein
the frame sealant is located on a side of the conductive structure proximate to the opposite substrate, and the frame sealant surrounds the active area; an orthographic projection of the frame sealant on the first substrate overlaps with an orthographic projection of the conductive structure on the first substrate; the side surface, away from the active area, of the conductive structure is substantially flush with a side surface, located on the side where the conductive structure is located and away from the active area, of the frame sealant; or an edge, away from the active area, of the orthographic projection of the conductive structure on the first substrate exceeds an edge, located on the side where the conductive structure is located and away from the active area, of the orthographic projection of the frame sealant on the first substrate.

14 . The display panel according to claim 13 , wherein in a case where the edge, away from the active area, of the orthographic projection of the conductive structure on the first substrate exceeds the edge, located on the side where the conductive structure is located and away from the active area, of the orthographic projection of the frame sealant on the first substrate,
a distance between the edge, away from the active area, of the orthographic projection of the conductive structure on the first substrate and the edge, located on the side where the conductive structure is located and away from the active area, of the orthographic projection of the frame sealant on the first substrate is in a range of 0.5 mm to 1 mm, inclusive; and a width of the frame sealant is in a range of 0.5 mm to 2 mm, inclusive.

15 . The display panel according to claim 1 , further comprising: an insulating adhesive, the insulating adhesive at least covering a side surface of the display panel on the side where the conductive structure is located, wherein
the display panel further comprises a frame sealant, an edge, away from the active area, of an orthographic projection of the conductive structure on the first substrate exceeds an edge, located on the side where the conductive structure is located and away from the active area, of an orthographic projection of the frame sealant on the first substrate, and the insulating adhesive further covers a portion, exceeding the frame sealant in a direction away from the active area, of the conductive structure.

16 . A display device, comprising: at least two display panels according to claim 1 , wherein each display panel is configured to be capable of being spliced at least at an edge of the display panel on the side where the conductive structure is located.

17 . The display device according to claim 16 , wherein the display panel further has a bonding area, the display panel is further configured capable of being spliced at an edge of the display panel opposite to an edge of the display panel on a side where the bonding area is located;
the display device comprises four display panels, and the four display panels are arranged in an array; two display panels in a same row are spliced with each other at edges thereof on sides where conductive structures are located; and two display panels in a same column are spliced with each other at edges thereo

Assignees

• Hefei Boe Display Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Li Chao
• Zhang Wei
• Gao Jilei
• Li Bin
• Xu Benzhi
• Wang Xipeng
• Liu Yunfei
• Liu Qi
• Zhang Yonggang

Classifications

• G02F1/13458

  Terminal pads · CPC title

• G02F1/133388

  with constructional differences between the display region and the peripheral region · CPC title

• G02F1/1368 Primary

  in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} · CPC title

• G02F1/13454 Primary

  Drivers integrated on the active matrix substrate (G02F1/136277 takes precedence) · CPC title

• G02F1/133512

  Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence) · CPC title