Reflective 3D display device and display method

Patent metadata

Field	Value
Publication number	US-10859850-B2
Application number	US-201816314147-A
Country	US
Kind code	B2
Filing date	Apr 4, 2018
Priority date	Apr 7, 2017
Publication date	Dec 8, 2020
Grant date	Dec 8, 2020

Abstract

A reflective 3D display device, including: a display panel which includes a plurality of columns of pixels, the plurality of columns of pixels include columns of left eye pixels and columns of right eye pixels, which are provided alternatively; an eye tracker, configured to identify location information of eyes of a human who is watching the display panel; and a plurality of MEMS reflectors, provided at a side of the display panel opposite to a display surface of the display panel, and configured to rotate according to the location information of the eyes of the human to adjust an outgoing direction of light irradiated on the MEMS reflectors, so that light emitted from the left eye pixels is incident into a left eye of the human, and light emitted from the right eye pixels is incident into a right eye of the human, to form a 3D display picture.

First claim

The invention claimed is:

1. A reflective 3D display device, comprising:
a display panel which comprises a plurality of columns of pixels, the plurality of columns of pixels comprise columns of left eye pixels and columns of right eye pixels, which are provided alternatively, the left eye pixels are configured to form a left eye image, and the right eye pixels are configured to form a right eye image;
an eye tracker, configured to identify location information of eyes of a human who is watching the display panel; and
a plurality of MEMS reflectors, which are provided at a side of the display panel opposite to a display surface of the display panel, configured to rotate according to the location information of the eyes of the human to adjust an outgoing direction of light irradiated on the MEMS reflectors, so that light emitted from the left eye pixels in the display panel is incident into a left eye of the human, and light emitted from the right eye pixels in the display panel is incident into a right eye of the human, to form a 3D display picture,
wherein the plurality of the columns of pixels are divided into a plurality of pixel groups, each of the pixel groups comprises one of the left eye pixels and one of the right eye pixels provided adjacently, the MEMS reflectors are provided corresponding to the pixel group in an one-to-one correspondence mode,
each of the MEMS reflectors is configured to rotate at a first timing according to the location information of the left eye of the human collected by the eye tracker to adjust the outgoing direction of the light irradiated on each of the MEMS reflectors, so that light emitted from the left eye pixels is incident into the left eye of the human, and rotate at a second timing according to the location information of the right eye of the human collected by the eye tracker to adjust the outgoing direction of the light irradiated on each of the MEMS reflectors, so that light emitted from the right eye pixels is incident into the right eye of the human.

2. The reflective 3D display device of claim 1 , wherein the MEMS reflectors are electrostatic actuated MEMS reflectors.

3. The reflective 3D display device of claim 1 , wherein the reflective 3D display device further incudes a front light source provided at a side of the display surface of the display panel.

4. A display method of the reflective 3D display device of claim 1 , the display method comprising:
controlling the left eye pixels in the display panel to display a left eye image and controlling the right eye pixels in the display panel to display a right eye image;
identifying location information of eyes of a human who is watching the display panel; and
rotating the plurality of MEMS reflectors according to the location information of the eyes of the human to adjust an outgoing direction of light irradiated on each of the plurality of MEMS reflectors, so that light emitted from the left eye pixels in the display panel is incident into a left eye of the human, and light emitted from the right eye pixels in the display panel is incident into a right eye of the human, to form a 3D display picture,
wherein controlling the left eye pixels in the display panel to display the left eye image and controlling the right eye pixels in the display panel to display the right eye image comprises:
at a first timing, writing data signal corresponding to the left eye image to the left eye pixels in the display panel; and
at a second timing, writing data signal corresponding to the right eye image to the right eye pixels in the display panel,
and wherein rotating the plurality of MEMS reflectors accoording to the location information of the eyes of the human to adjust the outgoing direction of the light irradiated on the MEMS reflectors so that light emitted from the left eye pixels in the display panel is incident into the left eye of the human and light emitted from the right eye pixels in the display panel is incident into the right eye of the human to form the 3D display picture comprises:
at the first timing, rotating each of the plurality of MEMS reflectors according to the location information of the left eye of the human collected by the eye tracker to adjust the outgoing direction of the light irradiated on each of the plurality of MEMS reflectors, so that light emitted from the left eye pixels is incident into the left eye of the human to form the left eye image in the left eye of the human; and
at the second timing, rotating each of the plurality of MEMS reflectors according to the location information of the right eye of the human collected by the eye tracker to adjust the outgoing direction of the light irradiated on each of the plurality of MEMS reflectors, so that light emitted from the right eye pixels is incident into the right eye of the human to form the right eye image in the right of the human.

Assignees

• Boe Technology Group Co Ltd
• Ordos Yuansheng Optoelectronics Co Ltd

Inventors

• Qin Weida
• Guo Pan
• Li Wei

Classifications

• G02B30/33 Primary

  involving directional light or back-light sources · CPC title

• G02B27/0093

  with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking · CPC title

• H04N13/305

  using lenticular lenses, e.g. arrangements of cylindrical lenses · CPC title

• G02B30/27

  involving lenticular arrays · CPC title

• H04N13/32

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