3D display panel, ME1HOD for driving same, and display apparatus

Patent metadata

Field	Value
Publication number	US-11340473-B2
Application number	US-201716067318-A
Country	US
Kind code	B2
Filing date	Dec 11, 2017
Priority date	Apr 1, 2017
Publication date	May 24, 2022
Grant date	May 24, 2022

Abstract

The present disclosure belongs to the field of display technology, and particularly relates to a 3D display panel, a method for driving the same and a display apparatus. The 3D display panel is divided into a plurality of pixel regions and comprises a light emitting unit, and the light emitting unit includes a plurality of light emitting devices arranged in the plurality of pixel regions. The plurality of light emitting devices are configured to form a barrier pattern of alternating bright and dark bands during display of the 3D display panel.

First claim

The invention claimed is:

1. A 3D display panel, divided into a plurality of pixel regions and comprising a light emitting unit and a display adjustment unit, the light emitting unit comprising a plurality of light emitting devices arranged in an array and respectively in the plurality of pixel regions, and the display adjustment unit being configured to control an exit direction of light emitted from the plurality of light emitting devices, wherein the plurality of light emitting devices are configured to form a barrier pattern of alternating bright and dark bands during display of the 3D display panel,
the display adjustment unit comprises a display adjustment layer and a control electrode layer disposed on at least one side of the display adjustment layer, wherein:
the display adjustment layer is a liquid crystal layer;
the control electrode layer comprises a plurality of control electrodes spaced apart from each other, and the plurality of control electrodes are configured to drive liquid crystal in the liquid crystal layer to form a plurality of liquid crystal lenses under the action of voltages applied to the plurality of control electrodes, and adjust sizes and curvatures of the plurality of liquid crystal lenses by controlling the voltages applied to the plurality of control electrodes, so as to control the exit direction of the light emitted from the plurality of light emitting devices; and
the plurality of light emitting devices are each a micro light emitting diode, and the plurality of liquid crystal lenses are in one-to-one correspondence with the plurality of light emitting devices.

2. The 3D display panel of claim 1 , wherein the plurality of control electrodes each are strip-shaped, the plurality of control electrodes are symmetrically disposed on two sides of the display adjustment layer, and the control electrodes and the light emitting devices are disposed correspondingly.

3. The 3D display panel of claim 1 , wherein the plurality of control electrodes each are strip-shaped, the plurality of control electrodes are disposed at intervals on a single side of the display adjustment layer, and at least part of the control electrodes are disposed correspondingly to the light emitting devices.

4. The 3D display panel of 1 , wherein the liquid crystal layer is made of a twisted nematic liquid crystal, or an electrically controlled birefringence liquid crystal.

5. The 3D display panel of 1 , further comprising a first controller disposed at a peripheral region of the 3D display panel, wherein the plurality of control electrodes are connected to the first controller through electrode lines, and the first controller is configured to control a voltage applied to each of the plurality of control electrodes such that the liquid crystal in the liquid crystal layer forms a plurality of liquid crystal lenses, and the sizes and curvatures of the plurality of liquid crystal lenses are adjusted.

6. The 3D display panel of claim 1 , further comprising a second controller disposed at a peripheral region of the 3D display panel, the plurality of light emitting devices are connected to the second controller through electrode lines, and the second controller is configured to control the plurality of light emitting devices in the plurality of pixel regions to form a barrier pattern of alternating bright and dark bands.

7. The 3D display panel of claim 1 , further comprising a plurality of gate lines and a plurality of data lines intersecting with each other and disposed between adjacent pixel regions, wherein each of the plurality of light emitting devices is connected to one of the plurality of gate lines and one of the plurality of data lines.

8. The 3D display panel of claim 1 , wherein the micro light emitting diodes are monochromatic micro light emitting diodes, and the micro light emitting diodes having different colors are cyclically arranged in a row direction and a column direction.

9. The 3D display panel of claim 1 , wherein the micro light emitting diodes are white micro light emitting diode devices.

10. The 3D display panel of claim 1 , wherein the micro light emitting diodes are formed by a transfer method.

11. The 3D display panel of claim 10 , wherein the micro light emitting diodes are formed on any one of a glass substrate, a polyester film substrate, and a printed circuit board.

12. A method for driving a 3D display panel, wherein the 3D display panel is the 3D display panel of claim 1 , and the method comprises:
driving the plurality of light emitting devices row by row or column by column such that the plurality of light emitting devices form a barrier pattern of alternating bright and dark bands.

13. The method of claim 12 , wherein the plurality of light emitting devices are driven by a controller row by row or column by column such that the plurality of light emitting devices form a barrier pattern of alternating bright and dark bands.

14. A display apparatus, comprising the 3D display panel of claim 1 .

15. The 3D display panel of claim 1 , wherein the micro light emitting diode has a size of several tens of microns.

16. The 3D display panel of claim 1 , wherein the micro light emitting diode has a refresh rate reaching several kHz.

Assignees

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

Inventors

• Wang Yanfeng
• Wang Dan
• Qiu Yun
• Wang Zhidong
• Xu Xiaoling
• Du Yuanxin
• Lv Zhenhua
• Wei Congcong
• Hu Weipin

Classifications

• H10W90/00

  Package configurations · CPC title

• H04N13/32

  using arrays of controllable light sources; using moving apertures or moving light sources · CPC title

• G02F2201/18

  parallel · CPC title

• H04N13/31

  using parallax barriers · CPC title

• G02F2203/34

  Colour display without the use of colour mosaic filters · CPC title