Pixel structure, display panel and display apparatus

Patent metadata

Field	Value
Publication number	US-11522018-B2
Application number	US-201916975761-A
Country	US
Kind code	B2
Filing date	Dec 23, 2019
Priority date	Jan 4, 2019
Publication date	Dec 6, 2022
Grant date	Dec 6, 2022

Abstract

The present disclosure provides a pixel structure, a display panel and a display apparatus. The pixel structure according to an embodiment of the present disclosure includes a pixel structure including: a plurality of pixel units. Each of the plurality of pixel units includes a plurality of sub-pixels, each of the plurality of sub-pixels is divided into at least two target sub-pixels, and a separation region is provided between two adjacent target sub-pixels.

First claim

What is claimed is:

1. A pixel structure, characterized in that it comprises: a plurality of pixel units, wherein each of the plurality of pixel units comprises a plurality of sub-pixels, each of the plurality of sub-pixels is divided into at least two target sub-pixels, and a separation region is provided between two adjacent target sub-pixels, wherein
the plurality of sub-pixels are arranged in an array, and the separation regions each have a strip shape, and are arranged such that in any one row of sub-pixels, each separation region disposed in one of two adjacent sub-pixels is perpendicular to each separation region disposed in the other of the two adjacent sub-pixels, and in any one column of sub-pixels, each separation region disposed in one of two adjacent sub-pixels is also perpendicular to each separation region disposed in the other of the two adjacent sub-pixels.

2. The pixel structure of claim 1 , characterized in that any two target sub-pixels have a same area.

3. The pixel structure of claim 1 , characterized in that a number of the target sub-pixels into which the each of the plurality of sub-pixels is divided is in a range of 2 to 10.

4. The pixel structure of claim 1 , characterized in that at least two separation regions are disposed in the each of the plurality of sub-pixels, and the at least two separation regions disposed in the each of the plurality of sub-pixels are arranged parallel to each other.

5. The pixel structure of claim 1 , characterized in that a smallest side length of each of the at least two target sub-pixels is greater than 10 μm.

6. The pixel structure of claim 1 , characterized in that the each of the plurality of sub-pixels comprises an anode, a cathode, and an organic functional layer between the anode and the cathode, the organic functional layer comprises an electron injection layer, an electron transport layer, a light emitting layer, a hole transport layer, and a hole injection layer, which are sequentially disposed on a side of the cathode close to the anode, wherein the light emitting layer comprises a plurality of light emitting region sets, each of the plurality of light emitting region sets comprises at least two light emitting regions, and the separation region is provided between two adjacent light emitting regions.

7. The pixel structure of claim 6 , characterized in that the plurality of light emitting region sets are arranged in an array, and the separation regions each have a strip shape, and are arranged such that in any one row of light emitting region sets, a separation region disposed in one of two adjacent light emitting region sets is perpendicular to a separation region disposed in the other of the two adjacent light emitting region sets, and in any one column of light emitting region sets, a separation region disposed in one of two adjacent light emitting region sets is also perpendicular to a separation region disposed in the other of the two adjacent light emitting region sets.

8. The pixel structure of claim 7 , characterized in that at least two separation regions are disposed in the each of the plurality of light emitting region sets, and the at least two separation regions disposed in the each of the plurality of light emitting region sets are arranged parallel to each other.

9. The pixel structure of claim 6 , characterized in that the separation regions each have a strip shape, and in a case where two separation regions are disposed in the each of the plurality of light emitting region sets, the separation regions are arranged such that the two separation regions disposed in the each of the plurality of light emitting region sets are perpendicular to each other, and in a case where at least three separation regions are disposed in the each of the plurality of sub-pixels, the separation regions are arranged such that any two of the at least three separation regions disposed in the each of the plurality of light emitting region sets are parallel or perpendicular to each other.

10. A display panel, characterized in that it comprises the pixel structure of claim 1 .

11. A display apparatus, characterized in that it comprises the display panel of claim 10 .

12. A method of manufacturing a pixel structure, characterized in that it comprises steps of:
forming an anode on a substrate;
sequentially forming a hole injection layer and a hole transport layer on the anode;
evaporating, by a mask, an organic light emitting material to a particular position on a side of the hole transport layer away from the hole injection layer to form a light emitting layer having a plurality of light emitting region sets, wherein each of the plurality of light emitting region sets is configured to comprise at least two light emitting regions, and there is a separation region between two adjacent light emitting regions;
sequentially forming, on the light emitting layer, an electron transport layer which covers the light emitting layer, and an electron injection layer; and
forming a cathode on a side of the electron injection layer away from the electron transport layer, wherein
the plurality of sub-pixels are arranged in an array, and the separation regions each have a strip shape, and are arranged such that in any one row of sub-pixels, each separation region disposed in one of two adjacent sub-pixels is perpendicular to each separation region disposed in the other of the two adjacent sub-pixels, and in any one column of sub-pixels, each separation region disposed in one of two adjacent sub-pixels is also perpendicular to each separation region disposed in the other of the two adjacent sub-pixels.

Assignees

• Fuzhou Boe Optoelectronics Tech Co Ltd
• Beijing Boe Technology Dev Co Ltd

Inventors

• Liu Chengjun
• Sun Shaojun
• Lu Junxiang
• Chen Xia
• Chi Yanfei
• Yin Junyao
• Lin Xiangdong
• Hu Guiguang
• Li Haiguang

Classifications

• H01L51/5012

  Electricity · mapped topic

• H01L51/0011

  Electricity · mapped topic

• H01L27/3211 Primary

  Electricity · mapped topic

• H01L27/3213

  Electricity · mapped topic

• H10K59/353 Primary

  characterised by the geometrical arrangement of the RGB subpixels · CPC title