# US 2017/0288142 A1 · Display substrate and fabricating method thereof, and system for fabricating display substrate and display device

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- Number: US 2017/0288142 A1
- Document ID: US20170288142A1
- Status: Published application
- Kind: A1
- Application number: 15/511,309
- Filed: 2016-04-01
- Published: 2017-10-05
- Earliest claimed: 2015-06-23
- Assignees: Boe Technology Group Co., Ltd.; Ordos Yuansheng Optoelectronics Co., Ltd.
- Applicants: Boe Technology Group Co., Ltd.; Ordos Yuansheng Optoelectronics Co., Ltd.
- Inventors: Zhen WANG
- Web page: https://patentgrep.com/patent/US20170288142A1

## CPC

- H10K 59/351: {comprising more than three subpixels, e.g. red-green-blue-white [RGBW]}
- G03F 1/50: Mask blanks not covered by G03F1/20 - G03F1/34; Preparation thereof
- G09G 3/2003: {Display of colours (specific for liquid crystal displays G09G3/3607)}
- G09G 3/2074: {using sub-pixels}
- G09G 3/3208: organic, e.g. using organic light-emitting diodes [OLED]
- H10K 59/353: {characterised by the geometrical arrangement of the RGB subpixels}
- H10K 71/166: {using selective deposition, e.g. using a mask}
- G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
- G09G 2320/0233: Improving the luminance or brightness uniformity across the screen
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- G03F: PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR; (phototypographic composing devices B41B; photosensitive materials or processes for photographic purposes G03C; electrophotography, sensitive layers or processes therefor G03G)
- 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 fabricating method thereof, and a system for fabricating a display substrate and a display device are disclosed. The display substrate includes a plurality of pixels, each of which includes a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel arranged in a first direction. The fourth sub-pixel in a first pixel is adjacent to the first sub-pixel in a second pixel, and that the second pixel is adjacent to the first pixel and at a side of the first pixel in the first direction. The fourth sub-pixel in the first pixel is adjacent to the second sub-pixel in a third pixel, and the third pixel is adjacent to the first pixel and at a side of the first pixel in a second direction perpendicular to the first direction.

## Claims

### Claim 1

A method for fabricating a display substrate comprising:
forming a first circuit for driving a first sub-pixel, a second circuit for driving a second sub-pixel, a third circuit for driving a third sub-pixel, and a fourth circuit for driving a fourth sub-pixel;
forming the first sub-pixel on the first circuit and the fourth circuit using a first mask plate, wherein the first mask plate includes a plurality of first openings, each first opening corresponding to one first sub-pixel and one fourth sub-pixel;
forming the second sub-pixel on the second circuit and the fourth circuit using a second mask plate, wherein the second mask plate includes a plurality of second openings, each second opening corresponding to one second sub-pixel and one fourth sub-pixel; and
forming the third sub-pixel on the third circuit and the fourth circuit using a third mask plate, wherein the third mask plate includes a plurality of third openings, each third opening corresponding to one third sub-pixel and one fourth sub-pixel, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel on the fourth circuit are superposed to form the fourth sub-pixel.

### Claim 2 (depends on 1)

The method for fabricating a display substrate according to claim 1, wherein each pixel in the display substrate to be formed includes the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel arranged in a first direction;
wherein the fourth sub-pixel corresponding to the first opening belongs to a first pixel, and the first sub-pixel corresponding to the first opening belongs to a second pixel adjacent to the first pixel and at a side of the first pixel in the first direction;
wherein the fourth sub-pixel corresponding to the second opening belongs to the first pixel, and the second sub-pixel corresponding to the second opening belongs to a third pixel adjacent to the first pixel and at a side of the first pixel in a second direction perpendicular to the first direction; and
wherein the third sub-pixel and the fourth sub-pixel corresponding to the third opening belong to the first pixel.

### Claim 3 (depends on 2)

The method for fabricating a display substrate according to claim 2, wherein the plurality of second openings are arranged in the second direction, wherein the fourth sub-pixel corresponding to a first second opening of two adjacent second openings is arranged at a side of the second sub-pixel corresponding to the first second opening in the second direction, and wherein the fourth sub-pixel corresponding to a second second opening of the two adjacent second openings is arranged at another side of the second sub-pixel corresponding to the first second opening along the second direction.

### Claim 4 (depends on 3)

The method for fabricating a display substrate according to claim 3, wherein the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel have a rectangular shape, and wherein the first opening, the second opening, and the third opening have a rectangular shape.

### Claim 5 (depends on 2)

The method for fabricating a display substrate according to claim 2, wherein adjacent sub-pixels in the first pixel are spaced apart by a preset distance, wherein the first sub-pixel in the second pixel is spaced apart from the fourth sub-pixel in the first pixel by the preset distance, and wherein the second sub-pixel in the third pixel is spaced apart from the fourth sub-pixel in the first pixel by the preset distance.

### Claim 6 (depends on 5)

The method for fabricating a display substrate according to claim 5, wherein the first opening further corresponds to a region between the fourth sub-pixel of the first pixel and the first sub-pixel of the second pixel;
wherein the second opening further corresponds to a region between the fourth sub-pixel of the first pixel and the second sub-pixel of the third pixel; and
wherein the third opening further corresponds to a region between the third sub-pixel and the fourth sub-pixel of the first pixel.

### Claim 7 (depends on 1)

The method for fabricating a display substrate according to claim 1, wherein the first sub-pixel is a red sub-pixel, the second sub-pixel is a green sub-pixel, the third sub-pixel is a blue sub-pixel, and the fourth sub-pixel is a white sub-pixel.

### Claim 8

A system for fabricating a display substrate comprising:
a circuit forming unit configured to form a first circuit for driving a first sub-pixel, a second circuit for driving a second sub-pixel, a third circuit for driving a third sub-pixel, and a fourth circuit for driving a fourth sub-pixel;
a first mask plate comprising a plurality of first openings, each first opening corresponding to one first sub-pixel and one fourth sub-pixel, the first mask plate configured to form the first sub-pixel on the first circuit and the fourth circuit;
a second mask plate; plate comprising a plurality of second openings, each second opening corresponding to one second sub-pixel and one fourth sub-pixel, the second mask plate configured to form the second sub-pixel on the second circuit and the fourth circuit; and
a third mask plate, comprising a plurality of third openings, each third opening corresponding to one third sub-pixel and one fourth sub-pixel, the third mask plate configured to form the third sub-pixel on the third circuit and the fourth circuit, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel on the fourth circuit are superposed to form the fourth sub-pixel.

### Claim 9 (depends on 8)

The system for fabricating a display substrate according to claim 8, wherein each pixel in the display substrate to be formed comprises the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel arranged in a first direction;
wherein the fourth sub-pixel corresponding to the first opening belongs to a first pixel, and the first sub-pixel corresponding to the first opening belongs to a second pixel adjacent to the first pixel and at a side of the first pixel in the first direction;
wherein the fourth sub-pixel corresponding to the second opening belongs to the first pixel, and the second sub-pixel corresponding to the second opening belongs to a third pixel adjacent to the first pixel and at a side of the first pixel in a second direction perpendicular to the first direction; and
wherein the third sub-pixel and the fourth sub-pixel corresponding to the third opening belong to the first pixel.

### Claim 10 (depends on 9)

The system for fabricating a display substrate according to claim 9, wherein the plurality of second openings are arranged in the second direction, wherein the fourth sub-pixel corresponding to a first second opening of two adjacent second openings is arranged at a side of the second sub-pixel corresponding to the first second opening in the second direction, and wherein the fourth sub-pixel corresponding to a second second opening of the two adjacent second openings is arranged at another side of the second sub-pixel corresponding to the first second opening along the second direction.

### Claim 11 (depends on 10)

The system for fabricating a display substrate according to claim 10, wherein the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel have a rectangular shape, and wherein the first opening, the second opening, and the third opening have a rectangular shape.

### Claim 12 (depends on 9)

The system for fabricating a display substrate according to claim 9, wherein adjacent sub-pixels in the first pixel are spaced apart by a preset distance;
wherein the first sub-pixel in the second pixel is spaced apart from the fourth sub-pixel in the first pixel by the preset distance; and
wherein the second sub-pixel in the third pixel is spaced apart from the fourth sub-pixel in the first pixel by the preset distance.

### Claim 13 (depends on 12)

The system for fabricating a display substrate according to claim 12, wherein the first opening further corresponds to a region between the fourth sub-pixel of the first pixel and the first sub-pixel of the second pixel;
wherein the second opening further corresponds to a region between the fourth sub-pixel of the first pixel and the second sub-pixel of the third pixel; and
wherein the third opening further corresponds to a region between the third sub-pixel and the fourth sub-pixel of the first pixel.

### Claim 14

A display substrate, comprising a plurality of pixels, each of which comprises a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel arranged in a first direction;
wherein the fourth sub-pixel in a first pixel is adjacent to the first sub-pixel in a second pixel, and the second pixel is adjacent to the first pixel and at a side of the first pixel in the first direction;
wherein the fourth sub-pixel in the first pixel is adjacent to the second sub-pixel in a third pixel, and the third pixel is adjacent to the first pixel and at a side of the first pixel in a second direction perpendicular to the first direction; and
wherein the fourth sub-pixel in the first pixel is adjacent to the third sub-pixel in the first pixel.

### Claim 15 (depends on 14)

The display substrate according to claim 14, wherein the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel are in a rectangular shape.

### Claim 16 (depends on 14)

The display substrate according to claim 14, wherein the adjacent sub-pixels in the first pixel are spaced apart by a preset distance;
wherein the first sub-pixel in the second pixel is spaced apart from the fourth sub-pixel in the first pixel by the preset distance; and
wherein the second sub-pixel in the third pixel is spaced apart from the fourth sub-pixel in the first pixel by the preset distance.

### Claim 17 (depends on 14)

A display device comprising the display substrate according to claim 14.

### Claim 18 (depends on 3)

The method for fabricating a display substrate according to claim 3, wherein adjacent sub-pixels in the first pixel are spaced apart by a preset distance, wherein the first sub-pixel in the second pixel is spaced apart from the fourth sub-pixel in the first pixel by the preset distance, and wherein the second sub-pixel in the third pixel is spaced apart from the fourth sub-pixel in the first pixel by the preset distance.

### Claim 19 (depends on 18)

The method for fabricating a display substrate according to claim 18, wherein the first opening further corresponds to a region between the fourth sub-pixel of the first pixel and the first sub-pixel of the second pixel;
wherein the second opening further corresponds to a region between the fourth sub-pixel of the first pixel and the second sub-pixel of the third pixel; and
wherein the third opening further corresponds to a region between the third sub-pixel and the fourth sub-pixel of the first pixel.

### Claim 20 (depends on 4)

The method for fabricating a display substrate according to claim 4, wherein the adjacent sub-pixels in the first pixel are spaced apart by a preset distance, wherein the first sub-pixel in the second pixel is spaced apart from the fourth sub-pixel in the first pixel by the preset distance, and wherein the second sub-pixel in the third pixel is spaced apart from the fourth sub-pixel in the first pixel by the preset distance.