IP Library Granted Patent US 11,374,078
Granted Patent B2
US 11,374,078 · App. 16/909,317 · Granted Jun 28, 2022

Array substrate, display panel, and display device with pixel arrangement

Inventor: Yu Xin (Shanghai, CN)
Assignees: Wuhan Tianma Micro-Electronics Co., Ltd.; Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
H01L27/3262H01L27/3218H01L27/3234H01L27/3265H01L27/3276
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Quick Facts
Patent No.
US 11,374,078
App. No.
16/909,317
Granted
Jun 28, 2022
Kind
B2
Abstract

An array substrate, a display panel and a display device are provided. The array substrate includes a plurality of pixel groups arranged as a matrix. The plurality of pixel groups include a plurality of first pixel groups, a plurality of second pixel groups and a plurality of third pixel groups. In odd number rows of pixel groups and odd number columns of pixel groups, the first pixel groups and the second pixel groups are alternately arranged. In even number rows of pixel groups and even number columns of pixel groups, the second pixel groups and the third pixel groups are alternately arranged. Each first pixel group includes two first sub-pixels arranged along a first direction. Each second pixel group includes two second sub-pixels arranged along a second direction; and each third pixel group includes two third sub-pixel groups arranged along the first direction.

Claims (114)

1. An array substrate, comprising:

a plurality of pixel groups arranged as a matrix with a row direction as a first direction and a column direction as a second direction,

wherein:

the plurality of pixel groups include a plurality of first pixel groups, a plurality of second pixel groups and a plurality of third pixel groups;

in odd number rows of the matrix of pixel groups and odd number columns of the matrix of pixel groups, the plurality of first pixel groups and the plurality of second pixel groups are alternately arranged;

in even number rows of the matrix of pixel groups and even number columns of the matrix of pixel groups, the plurality of second pixel groups and the plurality of third pixel groups are alternately arranged;

a first pixel group of the plurality of first pixel groups includes two first sub-pixels arranged along the first direction;

a second pixel group of the plurality of second pixel groups includes two second sub-pixels arranged along the second direction; and

a third pixel group of the plurality of third pixel groups includes two third sub-pixel groups arranged along the first direction.

2. The array substrate according to claim 1 , wherein:

each of the two first sub-pixels, the two second sub-pixels and the two third sub-pixels includes a light-emitting component;

the light-emitting component includes a first electrode, an organic light-emitting functional layer and a second electrode sequentially stacked along a light-emitting direction; and

at least one pixel group in the plurality of first pixel groups, the plurality of second pixel groups and the plurality of third pixel groups is a reference pixel group,

wherein organic light-emitting functional layers of two sub-pixels in the reference pixel group share a same mask opening.

3. The array substrate according to claim 1 , wherein:

along the first direction, a distance between two sub-pixels in a same pixel group is “a”, a distance between two adjacent pixel groups is “b”, and a<b; and

along the second direction, a distance between two sub-pixels in a same pixel group is “c”, a distance between two adjacent pixel groups is “d”, and c<d.

4. The array substrate according to claim 3 , wherein:

a value of “a” is in a range of approximately 8 μm-13 μm;

a value of “c” is in a range of approximately 8 μm-13 μm;

a value of “b” is in a range of approximately 14 μm-28 μm; and

a value of “d” is in a range of approximately 14 μm-28 μm.

5. The array substrate according to claim 1 , wherein:

a pixel group at an n-th row and an m-th column and a pixel group at an (n+1)-th row and an (m+1)-th column are located in a same straight line; and

an acute angle between the straight line and the first direction is in a range of approximately 30°-70°,

wherein:

“n” traverses all positive integers smaller than a total row number of the matrix; and

“m” traverses all positive integers smaller than a total column number of the matrix.

6. The array substrate according to claim 1 , wherein:

opposing sides of the two adjacent second sub-pixels that are respectively located in two adjacent pixel group rows are parallel to each other; and

opposing sides of a first sub-pixel and an adjacent third sub-pixel that are respectively located in two adjacent pixel group rows are parallel to each other.

7. The array substrate according to claim 6 , wherein:

the first sub-pixels, the second sub-pixels and the third sub-pixels are octagonal-shaped.

8. The array substrate according to claim 1 , wherein:

a light-emitting direction of the array substrate is a third direction;

each of the first sub-pixels, the second sub-pixels and the third sub-pixels includes a base substrate, a pixel circuit layer and a light-emitting component sequentially stacked along the third direction;

the pixel circuit layer includes a pixel circuit and a plurality of hollowed-out structures;

along the third direction, the plurality of hollowed-out structures penetrate the corresponding pixel circuit layer;

the light-emitting component includes a first electrode, an organic light-emitting functional layer and a second electrode sequentially stacked along the third direction;

in a same sub-pixel, the first electrode is electrically connected to the pixel circuit;

the plurality of hollowed-out structures includes a first hollowed-out structure having a largest area among the plurality of hollowed-out structures; and

along the third direction, the first electrode and the light-emitting functional layer in a same sub-pixel does not overlap with the first hollowed-out structure.

9. The array substrate according to claim 8 , wherein:

the pixel circuit includes a plurality of signal lines;

along the third direction, an overlapped region between the pixel circuit layer and the first electrode is a first region;

a signal line density in the first region is “h”;

in the pixel circuit layer outside the first region, a signal line density of any region having a same area as an area of the first region is “k”; and

h>k.

10. The array substrate according to claim 8 , wherein:

the pixel circuit includes a storage capacitor and a driving thin-film transistor;

the driving thin-film transistor is electrically connected to the first electrode;

the storage capacitor includes a first capacitor electrode;

the first capacitor electrode and a gate electrode of the driving thin-film transistor are disposed on a same layer; and

an orthographic projection of the first electrode on the base substrate and an orthographic projection of the organic light-emitting functional layer on the base substrate fall within an orthographic projection of the first capacitor electrode on the base substrate.

11. The array substrate according to claim 1 , wherein:

the second sub-pixels are green pixels;

the first sub-pixels and the third sub-pixels are any one of red pixels and blue pixels; and

a color of the first sub-pixels is different from a color of the third sub-pixels.

12. The array substrate according to claim 1 , wherein:

the second pixel group includes a first second-sub-pixel and a second second-sub-pixel;

each second second-sub-pixel in the plurality of second pixel groups is located at a first side of each first second-sub-pixels;

a plurality of first second-sub-pixels, the plurality of first sub-pixels or the plurality of third sub-pixels in any pixel group row and a plurality of second second-sub-pixels in a pixel group row adjacent to the first side of the any pixel group row form a first sub-pixel column;

a plurality of first sub-pixels arranged along the second direction form a first sub-pixel column;

a plurality of second sub-pixels arranged along the second direction form a second sub-pixel column;

a plurality of third sub-pixels arranged along the second direction form a third sub-pixel column;

the array substrate further includes a plurality of first scan lines and a plurality of data lines intersecting with each other;

a plurality of sub-pixels in a same sub-pixel row are electrically connected to one of the plurality of scan lines;

a plurality of second sub-pixels in a same second sub-pixel column are electrically connected to one of the plurality of data lines; and

adjacent sub-pixels in the first sub-pixel column and the third sub-pixel column are electrically connected to one of the plurality of data lines.

13. The array substrate according to claim 1 , wherein:

two sub-pixels in any group of the plurality of second pixel groups and sub-pixels respectively disposed adjacent to opposing sides the any group of the plurality of second pixel groups form a pixel unit;

during a display stage, the pixel unit borrows a sub-pixel of a third color in an adjacent pixel unit to form a display pixel unit; and

the display pixel unit is configured to display content of an image pixel unit in a to-be-displayed image,

wherein:

a light-emitting color of the sub-pixel of the third color is different from a light-emitting color of the two sub-pixels of the pixel unit borrowing the sub-pixel.

14. A display panel, comprising:

an array substrate, including:

a plurality of pixel groups arranged as a matrix with a row direction as a first direction and a column direction as a second direction,

wherein:

the plurality of pixel groups include a plurality of first pixel groups, a plurality of second pixel groups and a plurality of third pixel groups;

in odd number rows of the matrix of pixel groups and odd number columns of the matrix of pixel groups, the plurality of first pixel groups and the plurality of second pixel groups are alternately arranged;

in even number rows of the matrix of pixel groups and even number columns of the matrix of pixel groups, the plurality of second pixel groups and the plurality of third pixel groups are alternately arranged;

a first pixel group of the plurality of first pixel groups includes two first sub-pixels arranged along the first direction;

a second pixel group of the plurality of second pixel groups includes two second sub-pixels arranged along the second direction; and

a third pixel group of the plurality of third pixel groups includes two third sub-pixel groups arranged along the first direction.

15. The display panel according to claim 14 , further comprising:

a plurality of optical fingerprint identification units disposed on a side of the array substrate facing away from a light-emitting side of the array substrate.

16. The display panel according to claim 14 , wherein:

each of the two first sub-pixels, the two second sub-pixels and the two third sub-pixels includes a light-emitting component;

the light-emitting component includes a first electrode, an organic light-emitting functional layer and a second electrode sequentially stacked along a light-emitting direction; and

at least one pixel group in the plurality of first pixel groups, the plurality of second pixel groups and the plurality of third pixel groups is a reference pixel group,

wherein organic light-emitting functional layers of the two sub-pixels in the reference pixel group borrow a same mask opening.

17. The display panel according to claim 14 , wherein:

along the first direction, a distance between two sub-pixels in a same pixel group is “a”, a distance between two adjacent pixel groups is “b”, and a<b; and

along the second direction, a distance between two sub-pixels in a same pixel group is “c”, a distance between two adjacent pixel groups is “d”, and c<d.

18. A display device, comprising:

a display panel,

wherein:

the display panel includes an array substrate; and

the array substrate includes a plurality of pixel groups arranged as a matrix with a row direction as a first direction and a column direction as a second direction,

wherein:

the plurality of pixel groups include a plurality of first pixel groups, a plurality of second pixel groups and a plurality of third pixel groups;

in odd number rows of the matrix of pixel groups and odd number columns of the matrix of pixel groups, the plurality of first pixel groups and the plurality of second pixel groups are alternately arranged;

in even number rows of the matrix of pixel groups and even number columns of the matrix of pixel groups, the plurality of second pixel groups and the plurality of third pixel groups are alternately arranged;

a first pixel group of the plurality of first pixel groups includes two first sub-pixels arranged along the first direction;

a second pixel group of the plurality of second pixel groups includes two second sub-pixels arranged along the second direction; and

a third pixel group of the plurality of second pixel groups includes two third sub-pixel groups arranged along the first direction.

19. The display device according to claim 18 , wherein the display panel further comprises:

a plurality of optical fingerprint identification units disposed on a side of the array substrate facing away from a light-emitting side of the array substrate.

20. The display device according to claim 18 , wherein:

each of the two first sub-pixels, the two second sub-pixels and the two third sub-pixels includes a light-emitting component;

the light-emitting component includes a first electrode, an organic light-emitting functional layer and a second electrode sequentially stacked along a light-emitting direction; and

at least one pixel group in the plurality of first pixel groups, the plurality of second pixel groups and the plurality of third groups is a reference pixel group,

wherein organic light-emitting functional layers of the two sub-pixels in the reference pixel group share a same mask opening.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 4, 2022
From: SHANGHAI TIANMA AM-OLED CO.,LTD.
To: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.; WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
Reel/Frame 059498/0307 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2020
From: XIN, YU
To: SHANGHAI TIANMA AM-OLED CO.,LTD.
Reel/Frame 053014/0672 →
Priority Claims (1)
CN 201911205621.2 · Nov 29, 2019 · national
Continuity (1)
Related Publication 20210167152A1 · Jun 3, 2021