DISPLAY PANEL AND DISPLAY DEVICE

• US 20200135972A1
• Filed: 12/28/2019
• Published: 04/30/2020
• Est. Priority Date: 08/26/2019
• Status: Active Grant

• Current Assignee: Wuhan Tianma Micro-Electronics Company Limited (Wuhan Donghu New Technology Development Zone Production Promotion Centre)
• Original Assignee: Wuhan Tianma Micro-Electronics Company Limited (Wuhan Donghu New Technology Development Zone Production Promotion Centre)
• Inventors: MA, Yangzhao, ZHOU, Ruiyuan, CHEN, Yingjie
• Granted Patent: US 10,991,848 B2
• Time in Patent Office: Days
• CPC Class Codes: H01L 25/0753 the devices being arranged next to each other
• CPC Class Codes: H01L 27/156 two-dimensional arrays
• CPC Class Codes: H01L 31/14 the light source or sources being controlled by the semiconductor device sensitive to radiation, e.g. image converters, image amplifiers or image storage devices
• CPC Class Codes: H01L 33/24 of the light emitting region, e.g. non-planar junction
• CPC Class Codes: H01L 33/62 Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls

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

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.