Display substrates, display panels, and display devices

Patent metadata

Field	Value
Publication number	US-12144231-B2
Application number	US-202117473381-A
Country	US
Kind code	B2
Filing date	Sep 13, 2021
Priority date	Aug 29, 2019
Publication date	Nov 12, 2024
Grant date	Nov 12, 2024

Abstract

The present application provides a display substrate, a display panel, and a display device. The display substrate includes a substrate layer. The substrate layer includes a first substrate portion and a second substrate portion joined to each other. The first substrate portion is made of a first substrate material and configured to be disposed opposite to a photosensitive element. The second substrate portion is made of a second substrate material. A light transmittance of the first substrate material is larger than or equal to a light transmittance threshold, and a light transmittance of the second substrate material is smaller than the light transmittance threshold.

First claim

What is claimed is:

1. A display substrate, comprising:
a substrate layer comprising a first substrate portion and a second substrate portion joined to the first substrate portion;
wherein the first substrate portion is made of a first substrate material and configured to be disposed opposite to a photosensitive element, the second substrate portion is made of a second substrate material being different from the first substrate material, a light transmittance of the first substrate material is larger than or equal to a light transmittance threshold, and a light transmittance of the second substrate material is smaller than the light transmittance threshold;
wherein the first substrate material is a transparent polyimide, and the second substrate material is a yellow polyimide.

2. The display substrate of claim 1 , wherein the substrate layer is made of a flexible material, the display substrate further comprises a support base and a sacrificial layer, the sacrificial layer is made of a homogeneous material and disposed on the support base, and the substrate layer is disposed on the sacrificial layer.

3. The display substrate of claim 2 , wherein a thickness of the sacrificial layer is smaller than or equal to a thickness threshold.

4. The display substrate of claim 3 , wherein the thickness threshold is 50 nm.

5. The display substrate of claim 2 , wherein a material of the sacrificial layer is amorphous silicon, indium tin oxide, or a silicon-based organic material.

6. The display substrate of claim 1 , wherein the first substrate portion has the same thickness as the second substrate portion.

7. The display substrate of claim 1 , further comprising a drive circuit layer, wherein the drive circuit layer comprises a first circuit portion and a second circuit portion, the first circuit portion is located at a side of the first substrate portion away from the photosensitive element, the second circuit portion is located at a side of the second substrate portion away from the photosensitive element, and a light transmittance of the first circuit portion is larger than a light transmittance of the second circuit portion.

8. The display substrate of claim 7 , wherein the first circuit portion comprises at least one first wiring layer made of a transparent conductive material.

9. The display substrate of claim 8 , wherein the transparent conductive material comprises indium zinc oxide or indium tin oxide.

10. The display substrate of claim 7 , wherein the second circuit portion comprises at least one second wiring layer, and each of the at least one second wiring layer comprises metal.

11. The display substrate of claim 7 , wherein a circuit distribution density of the first circuit portion is smaller than a circuit distribution density of the second circuit portion.

12. The display substrate of claim 7 , wherein the first circuit portion comprises a passive drive circuit, and the second circuit portion comprises an active drive circuit.

13. A display panel, comprising:
a substrate layer comprising a first substrate portion and a second substrate portion joined to the first substrate portion, the first substrate portion comprising a first substrate material and being configured to be positioned opposite to a photosensitive element, the second substrate portion comprising a second substrate material being different from the first substrate material, a light transmittance of the first substrate material being greater than or equal to a light transmittance threshold, and a light transmittance of the second substrate material being smaller than the light transmittance threshold; and
light-emitting members disposed at a side of the substrate layer away from the photosensitive element, the light-emitting members comprising a first pixel region and a second pixel region, the first pixel region being disposed at a side of the first substrate portion away from the photosensitive element, and the second pixel region being disposed at a side of the second substrate portion away from the photosensitive element;
wherein the first substrate material is a transparent polyimide, and the second substrate material is a yellow polyimide.

14. The display panel of claim 13 , wherein the substrate layer is made of a flexible material, the display substrate further comprises a support base and a sacrificial layer, the sacrificial layer is made of a homogeneous material and disposed on the support base, and the substrate layer is disposed on the sacrificial layer.

15. The display panel of claim 14 , wherein a thickness of the sacrificial layer is smaller than or equal to a thickness threshold.

16. The display panel of claim 15 , wherein the thickness threshold is 50 nm.

17. The display panel of claim 13 , wherein the display substrate further comprises a drive circuit layer comprising a first circuit portion and a second circuit portion, the first circuit portion is located at the side of the first substrate portion away from the photosensitive element, the second circuit portion is located at the side of the second substrate portion away from the photosensitive element, and a light transmittance of the first circuit portion is greater than a light transmittance of the second circuit portion.

18. A display device, comprising the display panel of claim 13 and a photosensitive element, wherein the photosensitive element is opposite to the first substrate portion and is disposed at a side of the first substrate portion away from the first pixel region of the light-emitting members.

Assignees

• Hefei Visionox Tech Co Ltd

Inventors

• Chao Wei
• Liao Peng
• Wang Zhonglai
• Liu Xiaojia
• Chen Jingli
• Pan Buwei
• Hou Huayun

Classifications

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title

• H10K59/65 Primary

  OLEDs integrated with inorganic image sensors · CPC title

• H10K59/131 Primary

  Interconnections, e.g. wiring lines or terminals · CPC title

• H10K2102/311

  Flexible OLED · CPC title

• H10K2102/103

  comprising indium oxides, e.g. ITO · CPC title