Display panel and display device including camera area with light transmission hole

Patent metadata

Field	Value
Publication number	US-11335754-B2
Application number	US-202016769592-A
Country	US
Kind code	B2
Filing date	Mar 17, 2020
Priority date	Dec 12, 2019
Publication date	May 17, 2022
Grant date	May 17, 2022

Abstract

A display panel and a display device thereof are provided. Pixel units of camera areas are removed to form a light transmission hole, and after that, the camera component is disposed below the display panel of the camera area. External light can be incident on the camera component directly, so purpose of photographing is achieved, and the screen-to-body ratio is further increased.

First claim

What is claimed is:

1. A display panel, comprising:
a display region comprising a main display area and at least one camera area;
a plurality of pixel units distributed on the display panel of the display region;
wherein a distribution density of the pixel units on the camera area is less than a distribution density of the pixel units on the main display area; and
at least one light transmission hole defined on an area of the camera area without the plurality of pixel units.

2. The display panel as claimed in claim 1 , wherein the plurality of pixel units on the main display area and the camera area are arranged uniformly.

3. The display panel as claimed in claim 2 , wherein the distribution density of the pixel units on the camera area is less than or equal to half of the distribution density of the pixel units on the main display area.

4. The display panel as claimed in claim 1 , wherein the display region comprises two, three, or four camera areas, and each of the camera areas has the at least one light transmission hole.

5. The display panel as claimed in claim 1 , wherein the plurality of pixel units comprises:
a substrate;
a thin film transistor structure layer disposed on the structure;
a pixel definition layer disposed on the thin film transistor structure layer, wherein the pixel definition layer comprises an opening;
a pixel electrode disposed in the opening of the pixel definition layer;
a light emitting layer disposed on the pixel electrode in the opening; and
a cathode layer disposed on the light emitting layer.

6. The display panel as claimed in claim 5 , wherein the at least one light transmission hole penetrates from a surface of the cathode layer away from the substrate to a surface of the substrate away from the cathode layer.

7. The display panel as claimed in claim 1 , wherein the plurality of pixel units comprise four subpixels, and the subpixel are respectively a red subpixel, a blue subpixel, and two green subpixels.

8. The display panel as claimed in claim 1 , wherein a shape of the camera area comprises one or more of a rectangular shape, a polygonal shape, a circular shape, and an ellipse.

9. The display panel as claimed in claim 5 , wherein the display panel comprises:
a first inorganic layer disposed on the cathode layer;
an organic layer disposed on the first inorganic layer; and
a second inorganic layer disposed on the organic layer.

10. A display device, comprising the display panel as claimed in claim 1 , and comprising a camera component correspondingly disposed below the display panel of the camera area, wherein the display panel comprises:
a display region comprising a main display area and at least one camera area;
a plurality of pixel units distributed on the display panel of the display region;
wherein a distribution density of the pixel units on the camera area is less than a distribution density of the pixel units on the main display area; and
at least one light transmission hole defined on an area of the camera area without the plurality of pixel units.

11. The display device as claimed in claim 10 , wherein the plurality of pixel units on the main display area and the camera area are arranged uniformly.

12. The display device as claimed in claim 11 , wherein the distribution density of the pixel units on the camera area is less than or equal to half of the distribution density of the pixel units on the main display area.

13. The display device as claimed in claim 10 , wherein the display region comprises two, three, or four camera areas, and each of the camera areas has the at least one light transmission hole.

14. The display device as claimed in claim 10 , wherein the plurality of pixel units comprises:
a substrate;
a thin film transistor structure layer disposed on the structure;
a pixel definition layer disposed on the thin film transistor structure layer, wherein the pixel definition layer comprises an opening;
a pixel electrode disposed in the opening of the pixel definition layer;
a light emitting layer disposed on the pixel electrode in the opening; and
a cathode layer disposed on the light emitting layer.

15. The display device as claimed in claim 14 , wherein the at least one light transmission hole penetrates from a surface of the cathode layer away from the substrate to a surface of the substrate away from the cathode layer.

16. The display device as claimed in claim 10 , wherein the plurality of pixel units comprise four subpixels, and the subpixel are respectively a red subpixel, a blue subpixel, and two green subpixels.

17. The display device as claimed in claim 10 , wherein a shape of the camera area comprises one or more of a rectangular shape, a polygonal shape, a circular shape, and an ellipse.

18. The display device as claimed in claim 14 , wherein the display device comprises:
a first inorganic layer disposed on the cathode layer;
an organic layer disposed on the first inorganic layer; and
a second inorganic layer disposed on the organic layer.

Assignees

• Wuhan China Star Optoelectronics Semiconductor Display Tech Co Ltd
• Wuhan China Star Optoelectronies Semiconductor Display Tech Co Ltd

Inventors

• Wang Zhenmin

Classifications

• H10K59/8791

  Arrangements for improving contrast, e.g. preventing reflection of ambient light · CPC title

• H10K59/873

  Encapsulations · CPC title

• H10K59/65

  OLEDs integrated with inorganic image sensors · CPC title

• H01L27/326 Primary

  Electricity · mapped topic

• H01L2251/301

  Electricity · mapped topic