Display panel and display device

Patent metadata

Field	Value
Publication number	US-11688828-B2
Application number	US-202117239663-A
Country	US
Kind code	B2
Filing date	Apr 25, 2021
Priority date	Aug 26, 2019
Publication date	Jun 27, 2023
Grant date	Jun 27, 2023

Abstract

A display panel and a display device. The display panel includes a display area. The display area includes pixels in an array, pixels include at least three sub-pixels of different colors; display area includes a general display area, a transition display area, a photosensitive device setting area, general display area surrounds at least a part of transition display area, transition display area surrounds photosensitive device setting area; in transition display area, sub-pixels include display sub-pixels and virtual sub-pixels, sub-pixels include pixel circuits and light-emitting units, light-emitting units are electrically connected to pixel circuits in display sub-pixels, light-emitting units are insulated from pixel circuits in virtual sub-pixels; in photosensitive device setting area, sub-pixels include display sub-pixels; a setting density of display sub-pixels in transition display area is higher than that of the display sub-pixels in photosensitive device setting area, and lower than that of the display sub-pixels in general display area.

First claim

What is claimed is:

1. A display panel, comprising:
a display area, wherein the display area comprises pixels arranged in an array, and the pixels comprise at least three sub-pixels of different colors;
the display area comprises a general display area, a transition display area and a photosensitive device setting area, the general display area surrounds at least a part of the transition display area, and the transition display area at least partially surrounds the photosensitive device setting area;
in the transition display area, the at least three sub-pixels comprise display sub-pixels and virtual sub-pixels, the sub-pixels comprise pixel circuits and light-emitting units, the light-emitting units are electrically connected to the pixel circuits in the display sub-pixels, and the light-emitting units are insulated from the pixel circuits in the virtual sub-pixels; and in the photosensitive device setting area, the at least three sub-pixels only comprise display sub-pixels.

2. The display panel according to claim 1 , wherein each of the light-emitting units comprises a cathode; in the transition display area, a cathode of at least one display sub-pixel and a cathode of at least one virtual sub-pixel are consecutive.

3. The display panel according to claim 1 , wherein at least one virtual sub-pixel is arranged between each two display sub-pixels which are at least partially adjacent in the transition display area.

4. The display panel according to claim 1 , wherein a setting density of the display sub-pixels in the transition display area is higher than a setting density of the display sub-pixels in the photosensitive device setting area, and lower than a setting density of the display sub-pixels in the general display area.

5. The display panel according to claim 4 , wherein the transition display area comprises a first sub-area and a second sub-area, and the first sub-area surrounds the second sub-area;
a setting density of the display sub-pixels in the first sub-area is higher than a setting density of the display sub-pixels in the second sub-area.

6. The display panel according to claim 5 , wherein
for the transition display area:
all sub-pixel columns are divided into first sub-pixel columns and second sub-pixel columns, the first sub-pixel columns comprise the display sub-pixels and the virtual sub-pixels, the second sub-pixel columns comprise the virtual sub-pixels, and the first sub-pixel columns and the second sub-pixel columns are alternately arranged;
in the first sub-pixel columns in the first sub-area, the display sub-pixels and the virtual sub-pixels are alternately arranged; and two of the sub-pixels respectively located in two adjacent first sub-pixel columns and in a same row comprise one display sub-pixel and one virtual sub-pixel;
in the first sub-pixel columns in the second sub-area, at least one virtual sub-pixel is arranged between two adjacent display sub-pixels; and two of the sub-pixels located in two adjacent first sub-pixel columns and in a same row comprise at least one virtual sub-pixel.

7. The display panel according to claim 1 , wherein the pixels comprise display pixels, and each of the display pixels comprises three display sub-pixels of different colors;
for the photosensitive device setting area:
all the display pixels are arranged in an array, and a light-transmitting area is formed between any two adjacent display pixels;
a minimum distance in a row direction between two adjacent display pixels in the row direction is a sum of lengths of at least two display sub-pixels in the row direction, and a minimum distance in a column direction between two adjacent display pixels in the column direction is a sum of lengths of at least two display sub-pixels in the column direction;
all of the display sub-pixels in each of the display pixels are divided into a first set and a second set, the first set comprises two of the display sub-pixels in a same column, the second set comprises one of the display sub-pixels, and all the display sub-pixels in the first set and the display sub-pixels in the second set are in different columns and different rows.

8. The display panel according to claim 1 , wherein the photosensitive device setting area comprises a third sub-area and a fourth sub-area, the third sub-area surrounds the fourth sub-area, and a setting density of the display sub-pixels in the third sub-area is equal to a setting density of the display sub-pixels in the fourth sub-area;
the display panel comprises a polaroid provided with a through hole, an outer contour of an orthographic projection of the through hole on a light-emitting surface of the display panel coincides with an edge of a side, away from the fourth sub-area, of the third sub-area.

9. The display panel according to claim 1 , wherein a light-emitting unit in at least one of the virtual sub-pixels comprises an anode, a light-emitting layer and a cathode, and the anode is insulated from the pixel circuit.

10. The display panel according to claim 1 , wherein a light-emitting unit in at least one of the virtual sub-pixels only comprises a light-emitting layer and a cathode.

11. The display panel according to claim 1 , wherein each of the light-emitting unit in the display sub-pixels comprises an anode, a light-emitting layer and a cathode, each of the light-emitting units in the virtual sub-pixels comprises a cathode.

12. The display panel according to claim 11 , further comprises a base substrate and pixel defining layers located on the base substrate;
the pixel defining layers are provided with a plurality of opening areas, the opening areas coincide with orthographic projections of the display sub-pixels on the base substrate and do not overlap with orthographic projections of the virtual sub-pixels on the base substrate.

13. The display panel according to claim 1 , wherein signal lines and light shield layers are arranged in the photosensitive device setting area; and
orthographic projections of the lines on the light-emitting surface of the display panel are located in orthographic projections of the light shield layers on the light-emitting surface of the display panel.

14. The display panel according to claim 1 , wherein the at least three sub-pixels in a same column of sub-pixels comprise different colors, and the at least three sub-pixels in a same row of sub-pixels comprise a same color; or
the at least three sub-pixels in a same column of sub-pixels comprise a same color, and the at least three sub-pixels in a same row of sub-pixels comprise different colors.

15. A display device, comprising:
a display panel, wherein:
the display panel comprises a display area, wherein the display area comprises pixels arranged in an array, and the pixels comprise at least three sub-pixels of different colors;
the display area comprises a general display area, a transition display area and a photosensitive device setting area, the general display area surrounds at least a part of the transition display area, and the transition display area at least partially surrounds the photosensitive device setting area;
in the transition display area, the at least three sub-pixels comprise display sub-pixels and virtual sub-pixels, the sub-pixels comprise pixel circuits and light-emitting units, the light-emitting units are electrically connected to the pixel circuits in the display sub-pixels, and the light-emitting units are insulated from the pixel circuits in the virtual sub-pixels; and in the photosensitive device setting area, the at least three sub-pixels only comprise display sub-pixels;
wherein the photosensitive devic

Assignees

• Wuhan Tianma Micro Electronics Co Ltd

Inventors

• Ma Yangzhao
• Zhou Ruiyuan
• Chen Yingjie

Classifications

• H10W90/00

  Package configurations · CPC title

• H10H20/857

  Interconnections, e.g. lead-frames, bond wires or solder balls · CPC title

• H10F55/10

  wherein the radiation-sensitive semiconductor devices control the electric light source, e.g. image converters, image amplifiers or image storage devices · CPC title

• H10H20/821 Primary

  of the light-emitting regions, e.g. non-planar junctions · CPC title

• H10H29/142 Primary

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