IP Library › Granted Patent US 10,991,848
Granted Patent B2
US 10,991,848 · App. 16/729,310 · Granted Apr 27, 2021

Display panel and display device

Inventors: Yangzhao Ma (Wuhan, CN); Ruiyuan Zhou (Wuhan, CN); Yingjie Chen (Wuhan, CN)
Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
H01L33/24H01L25/0753H01L33/62H01L31/14
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Quick Facts
Patent No.
US 10,991,848
App. No.
16/729,310
Granted
Apr 27, 2021
Kind
B2
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.

Claims (58)

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 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; and

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.

2. 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.

3. The display panel according to claim 2 , 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.

4. The display panel according to claim 3 , 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.

5. 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.

6. 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.

7. 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; and/or

a light-emitting unit in at least one of the virtual sub-pixels only comprises a light-emitting layer and a cathode.

8. The display panel according to claim 1 , 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.

9. 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.

10. 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.

11. 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 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; and

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;

wherein the photosensitive device setting area of the display panel is provided with a camera or a fingerprint recognition device.

12. The display device according to claim 11 , 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.

13. The display device according to claim 12 , 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.

14. The display device according to claim 13 , 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 at least three 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; and

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 at least three sub-pixels located in two adjacent first sub-pixel columns and in a same row comprise at least one virtual sub-pixel.

15. The display device according to claim 11 , 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; and

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.

16. The display device according to claim 11 , 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; and

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.

17. The display device according to claim 11 , 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; and

a light-emitting unit in at least one of the virtual sub-pixels only comprises a light-emitting layer and a cathode.

18. The display device according to claim 11 , wherein the display panel 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.

19. The display device according to claim 11 , 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.

20. The display device according to claim 11 , 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.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 28, 2019
From: MA, YANGZHAO; ZHOU, RUIYUAN; CHEN, YINGJIE
To: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
Reel/Frame 051382/0172 →
Priority Claims (1)
CN 201910789575.9 · Aug 26, 2019 · national
Continuity (1)
Related Publication 20200135972A1 · Apr 30, 2020