Display module and glue dispensing method hereof

Patent metadata

Field	Value
Publication number	US-11385487-B2
Application number	US-201916630483-A
Country	US
Kind code	B2
Filing date	Nov 6, 2019
Priority date	Sep 23, 2019
Publication date	Jul 12, 2022
Grant date	Jul 12, 2022

Abstract

A display module and a glue dispensing method thereof are provided. The display module includes a display panel and a backlight module, and a polarizer is disposed between the display panel and the backlight module. The display module includes a blind hole for under-screen camera lighting in a display area, and the display panel includes a light transmission region and a light non-transmission region which are disposed corresponding to the blind hole. An aperture of the polarizer corresponding to the blind hole is reduced and blackened at an edge, thereby omitting the first glue dispensing process in the blind hole of the conventional structures.

First claim

What is claimed is:

1. A display module, comprising a display panel and a backlight module which are aligned and adhered to each other, and a polarizer disposed between the display panel and the backlight module;
wherein the display module comprises a display area and a blind hole, and the blind hole is disposed in the display area and penetrates a back of the display module;
wherein the display panel comprises a light transmission region and a light non-transmission region surrounding the light transmission region, which are formed in a position corresponding to the blind hole;
wherein a boundary of an opening of the polarizer at the blind hole extends to an edge of the light transmission region, and a boundary of an opening of the backlight module at the blind hole is disposed in the light non-transmission region;
wherein at least one part of the polarizer corresponding to the blind hole is a light-shielding portion, the light-shielding portion extends from the boundary of the opening of the polarizer to a side of the light non-transmission region away from the light transmission region, and the light-shielding portion overlaps the light non-transmission region to form an overlap region;
wherein the blind hole is filled with a glue, and the glue adheres to the backlight module and a side surface of the opening of the polarizer, and contacts with the display panel;
wherein the display module further comprises a camera assembly, the camera assembly corresponds to the blind hole and is disposed at a side of the backlight module away from the display panel, and the camera assembly is configured to take a picture of an article at a side of the display panel away from the camera assembly; and
wherein a height of the glue is less than or equal to a distance between the camera assembly and the display panel, and the glue is disposed outside of a photosensitive region of the camera assembly.

2. The display module according to claim 1 , wherein the boundary of the opening of the polarizer is disposed in the light transmission region, and a distance between the boundary of the opening of the polarizer and the edge of the light transmission region is less than or equal to a width of the glue.

3. The display module according to claim 1 , wherein the polarizer comprises a light-shielding material corresponding to a surface of the light-shielding portion, or the light-shielding portion of the polarizer is made of the light-shielding material.

4. The display module according to claim 1 , wherein the light-shielding portion extends from the boundary of the opening of the polarizer to the light non-transmission region and stops in the light non-transmission region, and a distance between a boundary of the light-shielding portion and the side of the light non-transmission region away from the light transmission region is greater than or equal to 0.25 mm.

5. The display module according to claim 1 , wherein the display panel comprises a black matrix corresponding to the light non-transmission region, and the black matrix extends from a boundary of the light transmission region to a boundary of the light non-transmission region.

6. A glue dispensing method of the display module according to claim 1 , comprising:
step S 10 : adhering the polarizer to a surface of the display panel, and adhering and aligning the display panel having the polarizer to the backlight module to form the display module to be glue dispensed;
step S 20 : performing a glue dispensing process at a boundary of an opening of the blind hole, such that the glue adheres to the backlight module and a side surface of an opening of the polarizer, and contacts with the display panel; and
step S 30 : curing the glue.

7. A display module, comprising a display panel and a backlight module which are aligned and adhered to each other, and a polarizer disposed between the display panel and the backlight module;
wherein the display module comprises a display area and a blind hole, and the blind hole is disposed in the display area and penetrates a back of the display module;
wherein the display panel comprises a light transmission region and a light non-transmission region surrounding the light transmission region, which are formed in a position corresponding to the blind hole;
wherein a boundary of an opening of the polarizer at the blind hole extends to an edge of the light transmission region, and a boundary of an opening of the backlight module at the blind hole is disposed in the light non-transmission region;
wherein at least one part of the polarizer corresponding to the blind hole is a light-shielding portion, the light-shielding portion extends from the boundary of the opening of the polarizer to the light non-transmission region and stops at a side of the light non-transmission region away from the light transmission region, and the light-shielding portion overlaps the light non-transmission region to form an overlap region;
wherein the blind hole is filled with a glue, and the glue adheres to the backlight module and a side surface of the opening of the polarizer, and contacts with the display panel;
wherein the display module further comprises a camera assembly, the camera assembly corresponds to the blind hole and is disposed at a side of the backlight module away from the display panel, and the camera assembly is configured to take a picture of an article at a side of the display panel away from the camera assembly; and
wherein a height of the glue is less than or equal to a distance between the camera assembly and the display panel, and the glue is disposed outside of a photosensitive region of the camera assembly.

8. The display module according to claim 7 , wherein the boundary of the opening of the polarizer is disposed in the light transmission region, and a distance between the boundary of the opening of the polarizer and the edge of the light transmission region is less than or equal to a width of the glue.

9. The display module according to claim 7 , wherein the polarizer comprises a light-shielding material corresponding to a surface of the light-shielding portion, or the light-shielding portion of the polarizer is made of the light-shielding material.

10. The display module according to claim 7 , wherein the light-shielding portion extends from the boundary of the opening of the polarizer to the light non-transmission region and stops in the light non-transmission region, and a distance between a boundary of the light-shielding portion and the side of the light non-transmission region away from the light transmission region is greater than or equal to 0.25 mm.

11. The display module according to claim 7 , wherein the display panel comprises a black matrix corresponding to the light non-transmission region, and the black matrix extends from a boundary of the light transmission region to a boundary of the light non-transmission region.

Assignees

• Wuhan China Star Optoelectronics Technology Co Ltd

Inventors

• Zhang Wei

Classifications

• H04N23/57

  Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices · CPC title

• G02F1/133512

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

• G02F1/133354 Primary

  Arrangements for aligning or assembling substrates · CPC title

• G02F2202/28

  Adhesive materials or arrangements · CPC title

• G02F1/133528

  Polarisers · CPC title