Display substrate with photoelectric sensor having regions connected with each other, display panel and display device

Patent metadata

Field	Value
Publication number	US-10937355-B2
Application number	US-202016872412-A
Country	US
Kind code	B2
Filing date	May 12, 2020
Priority date	Aug 1, 2017
Publication date	Mar 2, 2021
Grant date	Mar 2, 2021

Abstract

A display substrate, a display panel, and a display device. The display substrate includes a substrate, and a plurality of polygonal pixels arranged in an array on the substrate. Each polygonal pixel includes a plurality of sub-pixels and a photoelectric sensor. An orthographic projection of the plurality of sub-pixels on the substrate and an orthogonal projection of the photoelectric sensor on the substrate do not overlap with each other. The display substrate, the display panel and the display device of the embodiments of the present disclosure can maximize the collection of optical signals, thereby improving the efficiency of the photoelectric sensor and the accuracy of a fingerprint identification in certain applications.

First claim

What is claimed is:

1. A display substrate, comprising:
a substrate; and a plurality of polygonal pixels arranged in an array on the substrate,
wherein each polygonal pixel comprises:
a plurality of sub-pixels; and
a photoelectric sensor having three regions,
wherein an orthographic projection of the plurality of sub-pixels on the substrate and an orthogonal projection of the photoelectric sensor on the substrate do not overlap with each other, and three regions of the photoelectric sensor are connected with each other, and
wherein in each polygonal pixel, an edge of each sub-pixel near a center of the polygonal pixel has an arc shape, and an arcing direction of the arc shape departs from the center of the polygonal pixel.

2. The display substrate according to claim 1 , wherein in each polygonal pixel, the plurality of sub-pixels are disposed on a periphery of the polygonal pixel, and an edge of each sub-pixel at a periphery of the polygonal pixel overlaps with an edge of the polygonal pixel.

3. The display substrate according to claim 2 , wherein a shape of the sub-pixel is a triangle or an isosceles trapezoid.

4. The display substrate according to claim 1 , wherein each polygonal pixel further comprises three sub-pixels of different colors, and a shape of the polygonal pixels is a hexagon.

5. The display substrate according to claim 4 , wherein the three sub-pixels of different colors in each polygonal pixel correspond to a first edge, a third edge, and a fifth edge of the hexagon, respectively.

6. The display substrate according to claim 1 , wherein each polygonal pixel further comprises four sub-pixels of different colors, and a shape of the polygonal pixels is an octagon.

7. The display substrate according to claim 6 , wherein the four sub-pixels of different colors in each polygonal pixel correspond to a first edge, a third edge, a fifth edge, and a seventh edge of the octagon, respectively.

8. The display substrate according to claim 1 , wherein the photoelectric sensor and the plurality of sub-pixels are disposed in different layers on the substrate, and the plurality of sub-pixels are closer to a light exit side of the display substrate than is the photoelectric sensor.

9. The display substrate according to claim 1 , wherein the photoelectric sensor is a photodiode.

10. The display substrate according to claim 1 , wherein the sub-pixel is a light emitting device.

11. A display panel, comprising the display substrate according to claim 1 .

12. The display panel according to claim 11 , wherein in each polygonal pixel, the plurality of sub-pixels are disposed on a periphery of the polygonal pixel, and an edge of each sub-pixel at a periphery of the polygonal pixel overlaps with an edge of the polygonal pixel.

13. The display panel according to claim 12 , wherein a shape of the sub-pixels is a triangle or an isosceles trapezoid.

14. The display panel according to claim 11 , wherein each polygonal pixel includes three sub-pixels of different colors, and a shape of the polygonal pixels is a hexagon.

15. The display panel according to claim 14 , wherein the three sub-pixels of different colors in each polygonal pixel correspond to a first edge, a third edge, and a fifth edge of the hexagon, respectively.

16. The display panel according to claim 11 , wherein each polygonal pixel includes four sub-pixels of different colors, and a shape of the polygonal pixels is an octagon.

17. The display panel according to claim 16 , wherein the four sub-pixels of different colors in each polygonal pixel correspond to a first edge, a third edge, a fifth edge, and a seventh edge of the octagon, respectively.

18. A display device, comprising the display panel according to claim 11 .

Assignees

• Boe Technology Group Co Ltd

Inventors

• Li Dongsheng
• Sun Jianming
• Wu Huili
• Li Shipei
• Ren Qingrong

Classifications

• G06V40/1318 Primary

  using electro-optical elements or layers, e.g. electroluminescent sensing · CPC title

• G09G3/2003 Primary

  Display of colours (specific for liquid crystal displays G09G3/3607) · CPC title

• H10W90/00

  Package configurations · CPC title

• G06V10/147

  Details of sensors, e.g. sensor lenses (fingerprint or palmprint sensors G06V40/13; vascular sensors G06V40/145; eye sensors G06V40/19) · CPC title

• H10K59/878

  comprising reflective means · CPC title