Display substrate and display device

Patent metadata

Field	Value
Publication number	US-10488570-B2
Application number	US-201815945195-A
Country	US
Kind code	B2
Filing date	Apr 4, 2018
Priority date	Sep 13, 2017
Publication date	Nov 26, 2019
Grant date	Nov 26, 2019

Abstract

The present disclosure provides a display substrate and a display device. The display substrate includes a color filter layer and a shielding layer formed on a base substrate, the display substrate includes a display region and a non-display region, the display region has an anomalous boundary, the shielding layer covers the non-display region, a prism component is provided between the shielding layer and the color filter layer, and the prism component is located at a border of the display region and the non-display region for introducing light emitted from the color filter layer in the non-display region into the display region so that the light emitted from the color filter layer in the non-display region finally emits from the display region.

First claim

The invention claimed is:

1. A display substrate, comprising a color filter layer and a shielding layer formed on a base substrate, the display substrate comprises a display region and a non-display region, the display region has an anomalous boundary, the shielding layer covers the non-display region,
wherein a prism component is provided between the shielding layer and the color filter layer, and the prism component is located at a border of the display region and the non-display region for introducing light emitted from the color filter layer in the non-display region into the display region so that the light emitted from the color filter layer in the non-display region finally emits from the display region.

2. The display substrate of claim 1 , wherein the prism component comprises a first prism located in the non-display region at the border and a second prism located in the display region at the border,
the first prism is configured to reflect the light emitted from the color filter layer in the non-display region to the second prism, and
the second prism is configured to receive and reflect the light reflected by the first prism so that the light finally emits from the display region.

3. The display substrate of claim 2 , wherein each of the first prism and the second prism has a reflective surface, and the reflective surfaces of the first prism and the second prism are parallel and face to each other.

4. The display substrate of claim 2 , wherein a reflective surface of the first prism is a totally reflective surface, and is configured to totally reflect the light emitted from the color filter layer in the non-display region to the second prism.

5. The display substrate of claim 2 , wherein a reflective surface of the second prism is a semi-reflective surface, is configured to reflect the light reflected by the first prism so that the light finally emits from the display region, and to allow light emitted from the color filter layer in the display region to transmit therethrough so that the light emitted from the color filter layer in the display region finally emits from the display region.

6. The display substrate of claim 2 , further comprising a polarization conversion component, which is provided between the prism component and the color filter layer and is configured to convert the light emitted from the color filter layer in the non-display region into a polarized light which is incident to the first prism.

7. The display substrate of claim 6 , wherein the reflective surface of the first prism is formed by coating a polarized light reflective layer, and is configured to totally reflect the polarized light emitted from the polarization conversion component to the second prism.

8. The display substrate of claim 6 , wherein the reflective surface of the second prism is formed by coating a polarized light reflective layer, and is configured to reflect the polarized light reflected by the first prism so that the light finally emits from the display region.

9. The display substrate of claim 2 , wherein a boundary of an orthographic projection of the reflective surface of the first prism on the color filter layer and a boundary of an orthographic projection of the shielding layer on the color filter layer coincide with the boundary of the display region.

10. The display substrate of claim 2 , wherein an orthographic projection of the reflective surface of the first prism on the color filter layer covers the color filter layer in the non-display region.

11. The display substrate of claim 2 , wherein an orthographic projection of the reflective surface of the second prism on the color filter layer covers a portion of the display region.

12. The display substrate of claim 2 , wherein vertical heights of the first prism and the second prism between the color filter layer and the shielding layer are the same with each other.

13. The display substrate of claim 1 , wherein an orthographic projection of the prism component on the color filter layer covers one or more pixels of the color filter layer.

14. A display device, comprising the display substrate of claim 1 .

Assignees

• Boe Technology Group Co Ltd
• Chengdu Boe Optoelect Tech Co

Inventors

• Chen Shiqi
• Jiang ni
• Feng Yuanming
• Zuo Xiongcan

Classifications

• G02F1/133512

  Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence) · CPC title

• G02B5/3025

  Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state (G02B5/3008, G02B5/3016 take precedence) · CPC title

• G02F1/133524

  Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides · CPC title

• G02B5/22 Primary

  Absorbing filters {(G02B5/201 - G02B5/208 take precedence)} · CPC title

• G02F1/133

  Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements (arrangements or circuits for control of liquid crystal elements in a matrix, not structurally associated with these elements G09G3/36) · CPC title