Display device and method of manufacturing same

Patent metadata

Field	Value
Publication number	US-10996503-B2
Application number	US-201916623388-A
Country	US
Kind code	B2
Filing date	Nov 4, 2019
Priority date	Sep 24, 2019
Publication date	May 4, 2021
Grant date	May 4, 2021

Abstract

A display device and a method of manufacturing the same are provided. The display device includes a liquid crystal cell, a first polarizer, a second polarizer, a backlight module, a first light shielding body and a second light shielding body. The liquid crystal cell includes a light transmissive area. The first polarizer is provided with a first opening. The second polarizer is provided with a second opening. The first light shielding body is disposed in the first opening. The second light shielding body is disposed in the second opening.

First claim

What is claimed is:

1. A display device, comprising:
a liquid crystal cell comprising a light transmissive area for passing light required for an electronic device, wherein the liquid crystal cell comprises a first surface and a second surface, the first surface is oriented a side of a user, and the second surface is located on a side facing a backlight module;
a first polarizer disposed on the first surface; wherein the first polarizer is provided with a first opening, and an orthographic projection of the light transmissive area on the first surface is located within an orthographic projection of a wall of the first opening on the first surface;
a second polarizer disposed on the second surface; wherein the second polarizer is provided with a second opening, and an orthographic projection of the light transmissive area on the second surface is located within an orthographic projection of a wall of the second opening on the second surface;
the backlight module disposed on a side of the second polarizer; wherein the backlight module is bonded to the liquid crystal cell through a glue, the backlight module comprises a first through hole, and the first through hole corresponds to the light transmissive area;
a first light shielding body disposed in the first opening, wherein an orthographic projection of the first light shielding body on the first surface is located at an outer circumference of an orthographic projection of the light transmissive area on the first surface, and the first light shielding body is a light shielding glue or a black ink; and
a second light shielding body disposed in the second opening and extending to a wall of the first through hole, wherein an orthographic projection of the second light shielding body on the second surface is located at an outer circumference of an orthographic projection of the light transmissive area on the second surface, and the second light shielding body is a light shielding glue.

2. The display device according to claim 1 , wherein the liquid crystal cell further comprises a color filter substrate and an array substrate disposed opposite to each other and a liquid crystal disposed between the filter film substrate and the array substrate;
the color filter substrate comprises a first substrate and a color filter functional layer disposed on the first substrate, the color filter functional layer is provided with a second through hole corresponding to the light transmissive area, and the second through hole exposes the first substrate;
the array substrate comprises a second substrate and a thin film transistor functional layer disposed on the second substrate, the thin film transistor functional layer is provided with a third through hole corresponding to the light transmissive area, and the third through hole exposes the second substrate;
the liquid crystal is filled in the second through hole and the third through hole; and
the light transmissive area comprises an exposed portion of the first substrate, an exposed portion of the second substrate, and the liquid crystal between the exposed portion of the first substrate and the exposed portion of the second substrate.

3. The display device according to claim 2 , wherein the first light shielding body is attached to the wall of the first opening, and the second light shielding body is attached to the wall of the second opening;
an orthographic projection of the second light shielding body on the second surface is located within an orthographic projection of the first light shielding body on the second surface.

4. The display device according to claim 3 , wherein the second light shielding body has a predetermined distance from a boundary of the light transmissive area.

5. The display device according to claim 1 , wherein an orthographic projection of the wall of the second opening on the first surface is located within an orthographic projection of the wall of the first opening on the first surface.

6. The display device according to claim 1 , wherein the first through hole is disposed coaxially with the light transmissive area.

7. A display device, comprising:
a liquid crystal cell comprising a light transmissive area for passing light required for an electronic device, wherein the liquid crystal cell comprises a first surface and a second surface, the first surface is oriented a side of a user, and the second surface is located on a side facing a backlight module;
a first polarizer disposed on the first surface; wherein the first polarizer is provided with a first opening, and an orthographic projection of the light transmissive area on the first surface is located within an orthographic projection of a wall of the first opening on the first surface;
a second polarizer disposed on the second surface; wherein the second polarizer is provided with a second opening, and an orthographic projection of the light transmissive area on the second surface is located within an orthographic projection of a wall of the second opening on the second surface;
the backlight module disposed on a side of the second polarizer; wherein the backlight module comprises a first through hole, and the first through hole corresponds to the light transmissive area;
a first light shielding body disposed in the first opening, wherein an orthographic projection of the first light shielding body on the first surface is located at an outer circumference of an orthographic projection of the light transmissive area on the first surface; and
a second light shielding body disposed in the second opening and extending to a wall of the first through hole, wherein an orthographic projection of the second light shielding body on the second surface is located at an outer circumference of an orthographic projection of the light transmissive area on the second surface.

8. The display device according to claim 7 , wherein the liquid crystal cell further comprises a color filter substrate and an array substrate disposed opposite to each other and liquid crystal disposed between the filter film substrate and the array substrate;
the color filter substrate comprises a first substrate and a color filter functional layer disposed on the first substrate, the color filter functional layer is provided with a second through hole corresponding to the light transmissive area, and the second through hole exposes the first substrate;
the array substrate comprises a second substrate and a thin film transistor functional layer disposed on the second substrate, the thin film transistor functional layer is provided with a third through hole corresponding to the light transmissive area, and the third through hole exposes the second substrate;
the liquid crystal is filled in the second through hole and the third through hole; and
the light transmissive area comprises an exposed portion of the first substrate, an exposed portion of the second substrate, and liquid crystal between the exposed portion of the first substrate and the exposed portion of the second substrate.

9. The display device according to claim 8 , wherein the first light shielding body is attached to the wall of the first opening, and the second light shielding body is attached to the wall of the second opening;
an orthographic projection of the second light shielding body on the second surface is located within an orthographic projection of the first light shielding body on the second surface.

10. The display device according to claim 9 , wherein the second light shielding body has a predetermined distance from a boundary of the light transmissive area.

11. The display device according to claim 7 , wherein the backlight module is bonded to the liquid crystal cell through a glue.

Assignees

• Wuhan China Star Optoelectronics Technology Co Ltd

Inventors

• Yu Pengfei
• Long Chong
• Song Tao
• Tang Wei

Classifications

• G02F1/133528

  Polarisers · CPC title

• G02F1/13312 Primary

  Circuits comprising photodetectors for purposes other than feedback · CPC title

• G02F1/133512 Primary

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

• G02F2201/56

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

• G02F2202/28

  Adhesive materials or arrangements · CPC title