Dual-view naked-eye 3D display device and manufacturing method thereof, liquid crystal display device

Patent metadata

Field	Value
Publication number	US-10705349-B2
Application number	US-201615509434-A
Country	US
Kind code	B2
Filing date	Aug 5, 2016
Priority date	Jan 8, 2016
Publication date	Jul 7, 2020
Grant date	Jul 7, 2020

Abstract

Disclosed are a dual-view naked-eye 3D display device and a method for manufacturing the same, and a liquid crystal display device. The dual-view naked-eye 3D display device includes a thin film transistor (TFT) substrate, a diffraction grating provided on the TFT substrate, a liquid crystal layer provided on the diffraction grating, a polarizer provided on the liquid crystal layer, and a light source for emitting light to the TFT substrate. The TFT substrate includes a plurality of pixel units arranged in an array, the diffraction grating in each pixel unit having two grating patterns, and the extending directions of the light-shielding strips of the two grating patterns being at a predetermined angle.

First claim

The invention claimed is:

1. A dual-view naked-eye 3D display device, comprising:
a thin film transistor (TFT) substrate;
a diffraction grating disposed on the TFT substrate;
a liquid crystal layer disposed on the diffraction grating;
a polarizer disposed on the liquid crystal layer; and
a light source for emitting light to the TFT substrate,
wherein the TFT substrate comprises a plurality of pixel units arranged in an array, the diffraction grating in each pixel unit has two grating patterns, extending directions of light-shielding strips of the two grating patterns have a predetermined angle therebetween, and the light source is a light source that emits collimated light,
wherein each pixel unit comprises two sub-pixels, each sub-pixel comprising either of the two grating patterns,
wherein the two sub-pixels are configured to display corresponding different images, and
wherein angles between extending directions of the light-shielding strips of the two grating patterns corresponding to adjacent pixel units on the TFT substrate are different.

2. The device according to claim 1 , wherein a base substrate of the TFT substrate is a glass substrate.

3. The device according to claim 1 , wherein the diffraction grating is a sinusoidal phase grating or a blazed grating.

4. The device according to claim 1 , wherein, among the plurality of pixel units on the TFT substrate, an angle between the light-shielding strips of the two grating patterns corresponding to some pixel units is different from that corresponding to other pixel units.

5. The device according to claim 1 , wherein the TFT substrate comprises an in-plane switching (IPS), or a vertical alignment (VA) display mode.

6. The device according to claim 1 , wherein each of the two grating patterns comprises a plurality of light-shielding strips parallel to and spaced from each other.

7. The device according to claim 1 , wherein the light-shielding strips of the two grating patterns extend in different directions.

8. A liquid crystal display equipment, comprising the device according to claim 1 .

9. A method for manufacturing a dual-view naked-eye 3D display device, comprising:
providing a diffraction grating on a thin film transistor (TFT) substrate;
providing a liquid crystal layer on the diffraction grating;
providing a polarizer on the liquid crystal layer; and
providing a light source for emitting light to the TFT substrate,
wherein the TFT substrate comprises a plurality of pixel units arranged in an array, the diffraction grating in each pixel unit has two grating patterns, extending directions of light-shielding strips of the two grating patterns have a predetermined angle therebetween, and the light source is a light source that emits collimated light,
wherein each pixel unit comprises two sub-pixels, each sub-pixel comprising either of the two grating patterns,
wherein the two sub-pixels are configured to display corresponding different images, and
wherein angles between extending directions of the light-shielding strips of the two grating patterns corresponding to adjacent pixel units on the TFT substrate are different.

10. The liquid crystal display equipment according to claim 8 , wherein a base substrate of the TFT substrate is a glass substrate.

11. The liquid crystal display equipment according to claim 8 , wherein the diffraction grating is a sinusoidal phase grating or a blazed grating.

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Optoelectronics Tech Co Ltd

Inventors

• Niu Xiaochen
• Dong Xue
• Zhao Wenqing
• Chen Xiaochuan
• Gao Jian
• Lu Pengcheng
• Yang Ming
• Wang Qian
• Xu Rui
• Wang Lei
• Wang Pengpeng

Classifications

• H04N13/312 Primary

  the parallax barriers being placed behind the display panel, e.g. between backlight and spatial light modulator [SLM] · CPC title

• G02B30/30

  involving parallax barriers · CPC title

• G02F1/133302

  Rigid substrates, e.g. inorganic substrates · CPC title

• H04N2013/405

  the images being stereoscopic or three dimensional · CPC title

• G02F1/133615

  Edge-illuminating devices, i.e. illuminating from the side · CPC title