# US 2025/0098424 A1 · Display substrate and display device

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- Number: US 2025/0098424 A1
- Document ID: US20250098424A1
- Status: Published application
- Kind: A1
- Application number: 18/289,044
- Filed: 2022-05-31
- Published: 2025-03-20
- Earliest claimed: 2022-05-31
- Assignees: Chengdu Boe Optoelectronics Technology Co., Ltd.; Boe Technology Group Co., Ltd.
- Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd.; Boe Technology Group Co., Ltd.
- Inventors: Jiandong BAO; Yunhao WANG; Peng HOU
- Web page: https://patentgrep.com/patent/US20250098424A1

## CPC

- H10K 59/122: Pixel-defining structures or layers, e.g. banks
- G06F 3/041: Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F 3/0412: {Digitisers structurally integrated in a display}
- G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element
- H10K 50/80: Constructional details
- H10K 50/81: Anodes
- H10K 59/00: Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K 59/8723: {Vertical spacers, e.g. arranged between the sealing arrangement and the OLED}
- H10K 59/8792: {comprising light absorbing layers, e.g. black layers}
- G09G 2300/0426: Layout of electrodes and connections
- G09G 2300/0819: used for counteracting undesired variations, e.g. feedback or autozeroing
- G09G 2300/0842: forming a memory circuit, e.g. a dynamic memory with one capacitor
- G09G 2300/0861: with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
- G09G 2310/08: Details of timing specific for flat panels, other than clock recovery
- G09G 2320/0233: Improving the luminance or brightness uniformity across the screen
- G09G 2320/0247: Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
- G09G 2354/00: Aspects of interface with display user
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)

## Abstract

A display substrate and a display device, the display substrate has a plurality of sub-pixels, and includes a base substrate, a pixel driving circuit layer, a pixel definition layer and a spacer layer. The pixel driving circuit layer is disposed on the base substrate, the pixel definition layer is disposed on a side of the pixel driving circuit layer away from the base substrate, and includes a plurality of sub-pixel openings, wherein each of the plurality of sub-pixels includes a pixel driving circuit disposed in the pixel driving circuit layer and a light-emitting device at least partially disposed in the sub-pixel opening, the spacer layer is disposed on a side of the pixel definition layer away from the base substrate, and includes a plurality of spacers, wherein a transmittance of the plurality of spacers is less than 5%.

## Claims

### Claim 1

A display substrate, having a plurality of sub-pixels, and comprising:
a base substrate,
a pixel driving circuit layer, disposed on the base substrate,
a pixel definition layer, disposed on a side of the pixel driving circuit layer away from the base substrate, and comprising a plurality of sub-pixel openings, wherein each of the plurality of sub-pixels comprises a pixel driving circuit disposed in the pixel driving circuit layer and a light-emitting device at least partially disposed in the sub-pixel opening, and
a spacer layer, disposed on a side of the pixel definition layer away from the base substrate, and comprising a plurality of spacers, wherein a transmittance of the plurality of spacers is less than 5%.

### Claim 2 (depends on 1)

The display substrate according to claim 1, wherein a transmittance of a portion of the pixel definition layer other than the plurality of sub-pixel openings is less than 5%.

### Claim 3 (depends on 1)

The display substrate according to claim 1, wherein a material of the spacer layer is the same as a material of the pixel definition layer.

### Claim 4 (depends on 1)

The display substrate according to claim 1, wherein a minimum distance between the plurality of spacers and the plurality of sub-pixel openings is L, and 1 μm<L<8 μm.

### Claim 5

(canceled)

### Claim 6

(canceled)

### Claim 7 (depends on 1)

The display substrate according to claim 1, wherein the pixel driving circuit layer comprises a plurality of pixel driving circuits, a plurality of scanning signal lines providing scanning signals for the plurality of pixel driving circuits, and a plurality of reset control signal lines providing reset control signals for the plurality of pixel driving circuits,
in a direction parallel to the base substrate, at least parts of the plurality of spacers are respectively located between one reset control signal line and one scanning signal line that is closest to the one reset control signal line, or
in a direction perpendicular to the base substrate, at least parts of the plurality of spacers are respectively overlapped with at least one of one reset control signal line and one scanning signal line that is closest to the one reset control signal line.

### Claim 8

(canceled)

### Claim 9 (depends on 1)

The display substrate according to claim 1, further comprising a black matrix layer, disposed on a side of the light-emitting device away from the base substrate, wherein the black matrix layer comprises a plurality of first light transmission openings,
orthographic projections of the plurality of sub-pixel openings on the base substrate are respectively located within orthographic projections of the plurality of first light transmission openings on the base substrate, and distances between boundaries of the orthographic projections of the plurality of sub-pixel openings on the base substrate and boundaries of the orthographic projections of the plurality of first light transmission openings on the base substrate are in a range of 1.0 μm to 6.5 μm.

### Claim 10 (depends on 9)

The display substrate according to claim 9, further comprising a plurality of color filters, wherein the plurality of color filters are respectively at least partially disposed in the plurality of first light transmission openings;
for one first light transmission opening and one color filter that is at least partially disposed in the one first light transmission opening, an orthographic projection of the one first light transmission opening on the base substrate is located within an orthographic projection of the one color filter on the base substrate.

### Claim 11 (depends on 10)

The display substrate according to claim 10, wherein the black matrix layer further comprises a plurality of second light transmission openings, and the plurality of second light transmission openings are respectively disposed between two adjacent first light transmission openings among the plurality of first light transmission openings.

### Claim 12 (depends on 11)

The display substrate according to claim 11, further comprising a light shielding layer disposed on the base substrate, wherein the pixel driving circuit layer is disposed on a side of the light shielding layer away from the base substrate, and the light shielding layer comprises a plurality of third light transmission openings,
orthographic projections of at least parts of the plurality of third light transmission openings on the base substrate are respectively at least partially overlapped with orthographic projections of the plurality of second light transmission openings on the base substrate.

### Claim 13 (depends on 12)

The display substrate according to claim 12, wherein the orthographic projections of the plurality of third light transmission openings on the base substrate are respectively located within the orthographic projections of the plurality of second light transmission openings on the base substrate.

### Claim 14

(canceled)

### Claim 15 (depends on 12)

The display substrate according to claim 12, wherein the plurality of sub-pixels comprise first sub-pixels, second sub-pixels and third sub-pixels,
at least part of the plurality of second light transmission openings is located between first light transmission openings corresponding to a first sub-pixel and a third sub-pixel that are adjacent to each other, and a distance between the at least part of the plurality of second light transmission opening and the first light transmission opening corresponding to the first sub-pixel is different from a distance between the at least part of the plurality of second light transmission opening and the first light transmission opening corresponding to the third sub-pixel.

### Claim 16 (depends on 15)

The display substrate according to claim 15, wherein the first sub-pixels and the third sub-pixels are arranged in a plurality of rows and a plurality of columns,
a plurality of first sub-pixels and a plurality of third sub-pixels in a same column are arranged alternately, and one second light transmission opening is disposed between first light transmission openings corresponding to a first sub-pixel and a third sub-pixel that are adjacent to each other in a same column.

### Claim 17 (depends on 16)

The display substrate according to claim 16, wherein one first sub-pixel, two second sub-pixels and one third sub-pixel constitute a repeating unit, and a plurality of repeating units are arranged in an array,
a plurality of second sub-pixels in the plurality of repeating units are arranged in a plurality of rows and a plurality of columns, and the one second light transmission opening is also disposed between first light transmission openings corresponding to second sub-pixels that are adjacent in a row direction.

### Claim 18 (depends on 17)

The display substrate according to claim 17, wherein an orthographic projection of each of the plurality of spacers on the base substrate is located between orthographic projections of sub-pixel openings of second sub-pixels that are adjacent in a column direction, and is located between orthographic projections of sub-pixel openings of a first sub-pixel and a third sub-pixel that are adjacent in the row direction on the base substrate.

### Claim 19 (depends on 18)

The display substrate according to claim 18, wherein a shortest distance between the orthographic projection of each of the plurality of spacers on the base substrate and the orthographic projection of the sub-pixel opening of the first sub-pixel among the first sub-pixel and the third sub-pixel that are adjacent to each other on the base substrate is greater than a shortest distance between the orthographic projection of each of the plurality of spacers on the base substrate and the orthographic projection of the sub-pixel opening of the third sub-pixel among the first sub-pixel and the third sub-pixel that are adjacent to each other on the base substrate.

### Claim 20 (depends on 19)

The display substrate according to claim 19, wherein shortest distances between the orthographic projection of each of the plurality of spacers on the base substrate and the orthographic projections of the sub-pixel openings of the second sub-pixels that are adjacent to each other on the base substrate are substantially the same.

### Claim 21

(canceled)

### Claim 22 (depends on 11)

The display substrate according to claim 11, further comprising an encapsulation layer disposed on a side of the light-emitting device away from the base substrate and a touch layer disposed on a side of the encapsulation layer away from the base substrate,
wherein the black matrix layer is disposed on a side of the encapsulation layer away from the base substrate, the black matrix layer is disposed on a side of the touch layer away from the base substrate, and the touch layer comprises a plurality of touch lines,
orthographic projections of the plurality of touch lines on the base substrate are not overlapped with orthographic projections of the plurality of second light transmission openings on the base substrate.

### Claim 23 (depends on 22)

The display substrate according to claim 22, wherein the first sub-pixels and the third sub-pixels are arranged in a plurality of rows and a plurality of columns,
a plurality of first sub-pixels and a plurality of third sub-pixels in a same column are arranged alternately, wherein at least a part of the plurality of touch lines has a gap between a first sub-pixel and a third sub-pixel that are adjacent in a same column.

### Claim 24 (depends on 23)

The display substrate according to claim 23, wherein at least a part of the plurality of touch lines has a gap at a side close to the third sub-pixel or a side close to the first sub-pixel among the first sub-pixel and the third sub-pixel that are adjacent in a same column; or
at least a part of the plurality of touch lines has a gap at a side close to the third sub-pixel and a side close to the first sub-pixel among the first sub-pixel and the third sub-pixel that are adjacent in a same column.

### Claim 25 (depends on 1)

A display device, comprising the display substrate according to claim 1.