Light adjustment apparatus, 3D display apparatus, and control method thereof

Patent metadata

Field	Value
Publication number	US-11409126-B2
Application number	US-201816332114-A
Country	US
Kind code	B2
Filing date	Aug 29, 2018
Priority date	Sep 28, 2017
Publication date	Aug 9, 2022
Grant date	Aug 9, 2022

Abstract

The present disclosure is related to a display panel. The display panel may include a plurality of pixel units. Each of the plurality of pixel units may include a first pixel unit or a second pixel unit. The first pixel unit may include a first light adjusting structure configured to adjust an angle of light that transmits through the first light adjusting structure. The second pixel unit may include a second light adjusting structure configured to adjust an angle of light that transmits through the second light adjusting structure. A plurality of first pixel units may be configured to display a left-eye image. A plurality of second pixel units may be configured to display a right-eye image.

First claim

What is claimed is:

1. A display panel, comprising:
a first pixel unit; and
a second pixel unit,
wherein the first pixel unit comprises a first light adjusting structure configured to adjust an angle of light that transmits through the first light adjusting structure,
the second pixel unit comprises a second light adjusting structure configured to adjust an angle of light that transmits through the second light adjusting structure,
the first pixel unit and the second pixel unit are alternatively disposed in the display panel,
wherein the first light adjusting structure comprises a first transparent electrode, a second transparent electrode, a first liquid crystal layer, and a first sub-light adjusting structure, the first liquid crystal layer and the first sub-light adjusting structure being between the first transparent electrode and the second transparent electrode; and
the second light adjusting structure comprises the first transparent electrode, the second transparent electrode, and a second liquid crystal layer between the first transparent electrode and the second transparent electrode;
wherein the second light adjusting structure further comprises a second sub-light adjusting structure, the second sub-light adjusting structure is between the first transparent electrode and the second transparent electrode;
wherein the first sub-light adjusting structure comprises a first upper sub-light adjusting structure and a first lower sub-light adjusting structure being respectively on both sides of the first liquid crystal layer, and the second sub-light adjusting structure comprises a second upper sub-light adjusting structure and a second lower sub-light adjusting structure being respectively on both sides of the second liquid crystal layer;
wherein a plurality of first pixel units and a plurality of second pixel units are arranged in an array of rows and columns, the first lower sub-light adjusting structures of the first pixels in each of the columns have first inclined surfaces facing a first direction, the first inclined surfaces facing the first direction are arranged in a same column, the second lower sub-light adjusting structures of the second pixels in each of the columns have second inclined surfaces facing a second direction, the second inclined surfaces facing the second direction are arranged in the same column, and the first direction and the second direction are opposite to each other along a row direction; and
the first upper sub-light adjusting structures of the first pixels in each of the rows have third inclined surfaces facing a third direction, the third inclined surfaces facing the third direction are arranged in a same row, the second upper sub-light adjusting structures of the second pixels in each of the rows have fourth inclined surfaces facing a fourth direction, the fourth inclined surfaces facing the fourth direction are arranged in the same row, and the third direction and the fourth direction are opposite to each other along a column direction.

2. The display panel of claim 1 , further comprising a first base and a second base opposite the first base, the plurality of first pixel units and the plurality of second pixel units being between the first base and the second base,
wherein the first base comprising a first surface, the first transparent electrode and the first lower sub-light adjusting structure of the first pixel unit are stacked on the first surface, the first transparent electrode and the second lower sub-light adjusting structure of the second pixel unit are stacked on the first surface, and
the second base comprising a second surface, the second transparent electrode and the first upper sub-light adjusting structure of the first pixel unit are stacked on the second surface, the second transparent electrode and the second upper sub-light adjusting structure of the second pixel unit are stacked on the second surface.

3. The display panel of claim 2 , wherein the first upper sub-light adjusting structure and the first lower sub-light adjusting structure have different refractive indexes, and the second upper sub-light adjusting structure and the second lower sub-light adjusting structure have different refractive indexes; the first upper sub-light adjusting structure and the first lower sub-light adjusting structure are perpendicular to each other, and the second upper sub-light adjusting structure and the second lower sub-light adjusting structure are perpendicular to each other.

4. The display panel of claim 2 , wherein the first lower sub-light adjusting structure comprises a first bottom surface and a first inclined surface opposite the first bottom surface, the first bottom surface is arranged on the first base, the first inclined surface and the first bottom surface form a first acute angle, and the first acute angle is configured to determine exiting direction of a light that enters the first lower sub-light adjusting structure,
the first upper sub-light adjusting structure comprises a second bottom surface and a second inclined surface opposite the second bottom surface, the second bottom surface is arranged on the second base, the second inclined surface and the second bottom surface form a second acute angle, and the second acute angle is configured to determine exiting direction of a light that enters the first upper sub-light adjusting structure.

5. The display panel of claim 2 , wherein the second lower sub-light adjusting structure comprises a third bottom surface and a third inclined surface opposite the third bottom surface, the third bottom surface is arranged on the first base, the third inclined surface and the third bottom surface form a third acute angle, and the third acute angle is configured to determine exiting direction of a light that enters the second lower sub-light adjusting structure,
the second upper sub-light adjusting structure comprises a fourth bottom surface and a fourth inclined surface opposite the fourth bottom surface, the fourth bottom surface is arranged on the second base, the fourth inclined surface and the fourth bottom surface form a fourth acute angle, and the fourth acute angle is configured to determine exiting direction of a light that enters the second upper sub-light adjusting structure.

6. The display panel of claim 1 , wherein the first liquid crystal layer and the second liquid crystal layer comprises blue phase liquid crystals, and a refractive index of the blue phase liquid crystals in the first liquid crystal layer and the second liquid crystal layer is configured to be adjusted by an electrical field between the first transparent electrode and the second transparent electrode.

7. The display panel of claim 1 , wherein a cross-section of the first upper sub-light adjusting structure along a plane perpendicular to the first base has a shape of a right-angled triangle, a cross-section of the first lower sub-light adjusting structure along a plane perpendicular to the second base has a shape of a right-angled triangle.

8. The display panel of claim 1 , wherein a cross-section of the second upper sub-light adjusting structure along a plane perpendicular to the first base has a shape of a right-angled triangle, a cross-section of the second lower sub-light adjusting structure along a plane perpendicular to the second base has a shape of a right-angled triangle.

9. The display panel of claim 1 , wherein the plurality of first pixel units and the plurality of second pixel units are separated by a black matrix, the black matrix comprises a plurality of openings substantially coinciding with the plurality of first pixel units and the plurality of second pixel units respectively, and each of the plurality of openings has a rhombus shape.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Li Zhongxiao
• Dong Xue
• Chen Xiaochuan
• Zhao Wenqing
• Zhu Jinye
• Chen Chenyu

Classifications

• G02B30/33 Primary

  involving directional light or back-light sources · CPC title

• G02F1/133565

  inside the LC elements, i.e. between the cell substrates · CPC title

• G02F1/133371

  Cells with varying thickness of the liquid crystal layer · CPC title

• G02F1/1313 Primary

  specially adapted for a particular application · CPC title

• G02F1/133512

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