Display substrate, display panel and display device having improved luminance

Patent metadata

Field	Value
Publication number	US-10754193-B2
Application number	US-201816053120-A
Country	US
Kind code	B2
Filing date	Aug 2, 2018
Priority date	Dec 4, 2017
Publication date	Aug 25, 2020
Grant date	Aug 25, 2020

Abstract

A display substrate, a display panel, and a display device are provided. The display substrate includes a substrate body capable of transmitting light and a cover layer arranged on the substrate body to form a predetermined pattern, a plurality of pixel unit spaces are in the predetermined pattern. Light incident from a side of the substrate body to the cover layer is concentrated inside the cover layer and transmitted, and passes through the cover layer in a first direction, an angle between the first direction and a preset plane is less than a preset angle, the preset plane is parallel to the substrate body, the preset angle is less than 90 degrees.

First claim

What is claimed is:

1. A display substrate, comprising a light transmitting substrate body and a cover layer arranged on the substrate body to form a predetermined pattern, a plurality of pixel unit spaces are in the predetermined pattern;
wherein the cover layer is configured to enable light incident from a side of the substrate body to the cover layer to be concentrated inside the cover layer and transmitted, and pass through the cover layer in a first direction, an angle between the first direction and a preset plane is less than a preset angle, the preset plane is parallel to the substrate body, and the preset angle is less than 90 degrees.

2. The display substrate according to claim 1 , wherein the cover layer comprises light conducting portions and light shielding portions;
wherein at least a part of the light shielding portions are arranged on a side of the light conducting portions away from the substrate body;
the light conducting portions are configured to enable the light incident to the cover layer to be concentrated inside the cover layer and pass through the cover layer in the first direction.

3. The display substrate according to claim 2 , wherein the cover layer comprises a base layer made of a light shielding material, wherein light guiding paths are arranged inside the base layer, and light guiding members are arranged within the light guiding paths; and
the light conducting portions comprise the light guiding paths and the light guiding members, and the light shielding portions each include comprises a portion on the base layer other than the light guiding path.

4. The display substrate according to claim 2 , wherein the cover layer comprises a base layer made of a light transmitting material and a light shielding layer arranged on a surface of the base layer away from the substrate body; wherein light guiding members are arranged inside the base layer,
the light conducting portions comprise the base layer and the light guiding members, and the light shielding portions comprise the light shielding layer.

5. The display substrate according to claim 3 , wherein each light guiding member comprises a light concentrating member and a light reflecting member, and the light reflecting member is arranged on a side of the light concentrating member away from the substrate body.

6. The display substrate according to claim 5 , wherein the light concentrating member comprises at least one convex lens, and the light reflecting member comprises at least one triangular prism.

7. The display substrate according to claim 2 , wherein an orthographic projection of each light conducting portion on the substrate body is within an orthographic projection of each light shielding portion on the substrate body.

8. The display substrate according to claim 3 , wherein the light guiding members are arranged in an array form within the cover layer.

9. The display substrate according to claim 1 , wherein the preset angle is less than 45 degrees.

10. The display substrate according to claim 2 , wherein a first region of the cover layer comprises the light conducting portions and the light shielding portions, and the light shielding portions in a second region of the cover layer are arranged on an upper surface of the substrate body.

11. The display substrate according to claim 1 , wherein the display substrate is a color filter substrate or an array substrate.

12. The display substrate according to claim 4 , wherein each light guiding member comprises a light concentrating member and a light reflecting member, and the light reflecting member is arranged on a side of the light concentrating member away from the substrate body.

13. The display substrate according to claim 4 , wherein the light guiding members are arranged in an array form within the cover layer.

14. A display panel comprising the display substrate according to claim 1 .

15. A display device comprising the display panel according to claim 12 .

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Special Display Tech Co Ltd

Inventors

• Zhu Huizhong

Classifications

• G02F1/133504 Primary

  Diffusing, scattering, diffracting elements (associated to illuminating devices G02F1/133606) · CPC title

• G02F1/133606 Primary

  including a specially adapted diffusing, scattering or light controlling members · CPC title

• G02F1/133607

  the light controlling member including light directing or refracting elements, e.g. prisms or lenses · CPC title

• G02F1/13356

  characterised by the placement of the optical elements · CPC title

• G02F1/133507

  Films for enhancing the luminance · CPC title