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

Patent metadata

Field	Value
Publication number	US-2023136816-A1
Application number	US-202218147900-A
Country	US
Kind code	A1
Filing date	Dec 29, 2022
Priority date	Oct 27, 2022
Publication date	May 4, 2023
Grant date	—

Abstract

Provided is a display panel and a method for manufacturing the display panel, and a display apparatus. The display panel includes a cover and a display unit array that are opposite to each other. The display unit array includes at least two display units spliced together. Each display unit has a pixel region and a peripheral region at least partially surrounding the pixel region. Each display unit includes pins provided in the peripheral region. The cover includes connection electrodes. At a splicing position, the pins of two adjacent display units are electrically connected by a connection electrode of the connection electrodes.

First claim

What is claimed is:

1 . A display panel, comprising:
a cover; and a display unit array wherein the cover and the display unit array are arranged opposite of each other, wherein the display unit array comprises at least two display units spliced together, and wherein each of the at least two display units comprises:
a pixel region,
a peripheral region at least partially surrounding the pixel region, and
pins provided in the peripheral region, and the cover comprises connection electrodes,
wherein at a splicing position, the pins of two adjacent display units of the at least two display units are electrically connected by a connection electrode of the connection electrodes.

2 . The display panel according to claim 1 , wherein two pins of the pins of the two adjacent display units are aligned with each other in an extending direction of the connection electrode.

3 . The display panel according to claim 1 , further comprising an adhesive layer through which a display unit of the at least two display units is bonded to the cover.

4 . The display panel according to claim 1 , wherein the cover comprises at least one electrode region, wherein at least two connection electrodes of the cover are arranged in the electrode region along a same direction, and wherein adjacent connection electrodes of the at least two connection electrodes are spaced apart from each other by an insulation part.

5 . The display panel according to claim 1 , wherein at a splicing position, the pin and the connection electrode are electrically connected to each other through a conductive structure.

6 . The display panel according to claim 1 , wherein the cover comprises a substrate in direct contact with the connection electrodes.

7 . The display panel according to claim 1 , wherein the cover comprises a substrate, and a light-blocking layer arranged between the connection electrodes and the substrate.

8 . The display panel according to claim 7 , wherein an orthogonal projection of the connection electrodes on a plane of the light-blocking layer is within the light-blocking layer.

9 . The display panel according to claim 1 , wherein the cover comprises a substrate, wherein the substrate comprises protruding parts located on a side of the substrate close to the display unit array, wherein the protruding parts protrude from a surface of the substrate towards the at least two display units, respectively, and wherein a connection electrode of the connection electrodes overlaps a protruding part of the protruding parts in a direction perpendicular to a plane of the substrate.

10 . The display panel according to claim 1 , wherein the pin has an edge that is recessed with respect to an edge of the display unit.

11 . The display panel according to claim 1 , further comprising:
driver structures bonded on a periphery of the display unit array.

12 . The display panel according to claim 11 , wherein at least one driver structure of the driver structures is bonded to at least one of two sides of the display unit array opposite to each other in a first direction, and at least another one driver structure of the driver structures is bonded to at least one of two sides of the display unit array opposite to each other in a second direction intersecting the first direction.

13 . The display panel according to claim 1 , wherein the connection electrodes are made of a metal material or a transparent conductive material, and the pins are made of a metal material or a transparent conductive material.

14 . The display panel according to claim 1 , wherein a splicing gap formed between adjacent display units is filled with an adhesive material.

15 . A display apparatus, comprising a display panel, wherein the display panel comprises:
a cover; and a display unit array wherein the cover and the display unit array are arranged opposite of each other, wherein the display unit array comprises at least two display units that are spliced together, and wherein each of the at least two display units comprises:
a pixel region, a peripheral region at least partially surrounding the pixel region, and
pins provided in the peripheral region, and
wherein the cover comprises connection electrodes; and wherein at a splicing position, the pins of two adjacent display units of the at least two display units are electrically connected by a connection electrode of the connection electrodes.

16 . A method for manufacturing a display panel, comprising:
providing a substrate; forming connection electrodes on the substrate to form a cover comprising the connection electrodes; providing at least two display units, wherein each of the display units comprises a pixel region, a peripheral region at least partially surrounding the pixel region, and pins provided in the peripheral region; and aligning and attaching the at least two display units to the cover in such a manner that the at least two display units are spliced to form a display unit array, wherein the display unit array is opposite to the cover, and at a splicing position, the pins of two adjacent display units of the at least two display units are electrically connected by a connection electrode of the connection electrodes.

17 . The method according to claim 16 , wherein the aligning and attaching the at least two display units to the cover comprises:
pre-splicing the at least two display units to form a splicing array; and aligning and attaching the splicing array to the cover.

18 . The method according to claim 16 , wherein the aligning and attaching the at least two display units to the cover comprises:
aligning and attaching the at least two display units to the cover one at a time.

19 . The method according to claim 16 , further comprising:
before aligning and attaching the at least two display units to the cover, forming conductive structures on the pins of the at least two display units at predetermined splicing positions, wherein the aligning and attaching the at least two display units to the cover comprises: bonding the pins and the connection electrodes through the conductive structures at a splicing position.

20 . The method according to claim 16 , wherein the forming connection electrodes on the substrate to form the cover comprises:
forming the connection electrodes on the substrate through a patterning process.

Assignees

• Hubei Yangtze Ind Innovation Center Of Advanced Display Co Ltd

Inventors

• Wu Shouzheng

Classifications

• H10D86/60

  wherein the TFTs are in active matrices · CPC title

• H10H29/142

  Two-dimensional arrangements, e.g. asymmetric LED layout · CPC title

• H10D86/441 Primary

  Interconnections, e.g. scanning lines · CPC title

• G02F1/1343

  Electrodes {(reflective electrodes G02F1/133553)} · CPC title

• G02F1/13336 Primary

  Combining plural substrates to produce large-area displays, e.g. tiled displays · CPC title