Display module

Patent metadata

Field	Value
Publication number	US-12025872-B2
Application number	US-202318210712-A
Country	US
Kind code	B2
Filing date	Jun 16, 2023
Priority date	Jul 31, 2019
Publication date	Jul 2, 2024
Grant date	Jul 2, 2024

Abstract

Provided is a display module, including: a back panel including a bottom board and a side frame disposed on the bottom board; a display assembly at least partially located in an accommodation space enclosed by the side frame and the bottom board; a cover board located on a side of the display assembly away from the bottom board and supported by the side frame; and a bonding layer bonding the cover board to the side frame. The side frame is detachably coupled to the bottom board.

First claim

What is claimed is:

1. A display module, comprising:
a back panel comprising a bottom board and a side frame disposed on the bottom board;
a display assembly at least partially located in an accommodation space enclosed by the side frame and the bottom board;
a cover board located on a side of the display assembly away from the bottom board and supported by the side frame; and
a bonding layer bonding the cover board to the side frame,
wherein the side frame is detachably coupled to the bottom board,
wherein a bottom surface of the side frame comprises a first bottom surface and a second bottom surface, the first bottom surface is located closer to an outer wall surface of the side frame than the second bottom surface, the first bottom surface and the second bottom surface are provided in different planes, and the first bottom surface extends from the second bottom surface in a direction away from the cover board so that the first bottom surface and the second bottom surface form a step structure,
wherein the side frame is provided with a groove extending, from the second bottom surface, into the side frame in a direction towards the cover board,
wherein the bottom board is provided with a protrusion extending from a surface, facing the second bottom surface of the side frame, of the bottom board, and
wherein the bottom board is provided on the second bottom surface and is in contact with the second bottom surface, and the protrusion extends into and is provided in the groove of the side frame.

2. The display module according to claim 1 , wherein the bonding layer comprises a first bonding portion and a second bonding portion located between the cover board and the side frame, and the first bonding portion and the second bonding portion are both configured to bond the cover board to the side frame to enable the cover board to be curved,
wherein an elasticity modulus of the second bonding portion is smaller than the elasticity modulus of the first bonding portion.

3. The display module according to claim 2 , wherein
the first bonding portion comprises first solid glue and second solid glue disposed on the side frame, and the first solid glue and the second solid glue both are configured to extend along a circumferential direction of the cover board, and the first solid glue, the second solid glue and the side frame are configured to enclose an accommodation cavity; and
the second bonding portion comprises liquid glue, and the liquid glue is filled in the accommodation cavity.

4. The display module according to claim 3 , wherein the first solid glue and the second solid glue are spaced apart, the first solid glue is closer to an outer wall surface of the side frame than the second solid glue, and the second solid glue is closer to an inner wall surface of the side frame than the first solid glue.

5. The display module according to claim 4 , wherein both the first solid glue and the second solid glue are in a ring shape, and the first solid glue is configured to surround the second solid glue.

6. The display module according to claim 3 , wherein a surface of the side frame in contact with the liquid glue is provided with a groove.

7. The display module according to claim 3 , wherein the first solid glue and the second solid glue are a substrate-free double sided adhesive, and the liquid glue is optical glue.

8. The display module according to claim 2 , wherein
the first bonding portion and the second bonding portion are both solid glue, the second bonding portion is disposed in a plurality of corner areas of the side frame, and the first bonding portion is disposed between any two adjacent corner areas and extends from one corner area of any two adjacent corner areas to the other corner area of the two adjacent corner areas.

9. The display module according to claim 8 , wherein
the first bonding portion is a substrate-free double sided adhesive, and the second bonding portion is a foam substrate double sided adhesive.

10. The display module according to claim 8 , wherein
an end of the first bonding portion close to the second bonding portion comprises a first bump protruding toward the second bonding portion, an end of the second bonding portion close to the first bonding portion comprises a second bump protruding toward the first bonding portion, and the first bump and the second bump are configured to abut against each other in a width direction of the first bonding portion.

11. The display module according to claim 1 , wherein the display module is curved.

12. The display module according to claim 1 , wherein the display assembly comprises a display panel and a touch panel bonded between the display panel and the cover board, and the display panel, the touch panel, and the cover board are all curved.

13. The display module according to claim 1 , wherein the back panel is curved, and a curvature of the back panel is the same as a curvature of the cover board.

14. The display module according to claim 1 , wherein the side frame is detachably coupled to the bottom board through a fastener.

15. The display module according to claim 14 , wherein the fastener penetrates through the bottom board from a bottom surface, away from the side frame, of the bottom board, and extends into the side frame.

16. The display module according to claim 15 , wherein the fastener penetrates through the bottom board from the bottom surface of the bottom board and extends into the side frame from the second bottom surface, and the groove is spaced apart from a portion, extending into the side frame, of the fastener.

17. The display module according to claim 15 , wherein the fastener comprises a head and a screw.

Assignees

• Beijing Boe Optoelectronics Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Han Rui
• Huang Wei
• Zhai Yue
• Liu Yiming
• Ma Qing
• Zhang Zhipeng
• Tong Zeyuan
• Cui Dong
• Li Wenyang
• Zhang Zan
• Leng Shouyang
• Chi Weining
• Wang Fengping
• Tan Rui

Classifications

• G02F2201/46

  Fixing elements · CPC title

• G02F1/13338

  Input devices, e.g. touch panels · CPC title

• G02F2202/28

  Adhesive materials or arrangements · CPC title

• G02F1/133331

  Cover glasses · CPC title

• G02F2201/56

  Substrates having a particular shape, e.g. non-rectangular · CPC title