Three-dimensional display system

Patent metadata

Field	Value
Publication number	US-2016124233-A1
Application number	US-201414437140-A
Country	US
Kind code	A1
Filing date	Oct 11, 2014
Priority date	Apr 15, 2014
Publication date	May 5, 2016
Grant date	—

Abstract

A three-dimensional display system is provided, comprising: a display device; a three-dimensional grating, located on a light emitting side of the display device; and a refractive index adjusting device, disposed between the display device and the three-dimensional grating, wherein the refractive index adjusting device adjusts a viewing distance of the three-dimensional display system by changing a refractive index of outgoing light emitted from the display device to the three-dimensional grating. The viewing distance of the three-dimensional display system is changeable, so that the three-dimensional display system has enhanced space adaptability and a wider application range.

First claim

1 . A three-dimensional display system, comprising:
a display device; a three-dimensional grating, located on a light emitting side of the display device; and a refractive index adjusting device, disposed between the display device and the three-dimensional grating, wherein the refractive index adjusting device adjusts a viewing distance of the three-dimensional display system by changing a refractive index of outgoing light emitted from the display device to the three-dimensional grating.

2 . The three-dimensional display system according to claim 1 , wherein the refractive index adjusting device, along a direction from the display device to the three-dimensional grating, comprises: a first substrate, a first electrode, a liquid crystal layer, a second electrode and a second substrate disposed sequentially; and under a condition that a voltage signal is applied to the first electrode and the second electrode, liquid crystal molecules in the liquid crystal layer rotates, so the refractive index of the outgoing light passing through the liquid crystal layer is changed.

3 . The three-dimensional display system according to claim 2 , wherein the display device is provided with a polarizer on a side of the refractive index adjusting device.

4 . The three-dimensional display system according to claim 3 , wherein the refractive index adjusting device further comprises: a first alignment layer located on a side facing the liquid crystal layer of the first electrode, and an included angle between a rubbing direction of the first alignment layer and a polarization direction of the polarizer is greater than or equal to 0° and less than 90°.

5 . The three-dimensional display system according to claim 4 , wherein the rubbing direction of the first alignment layer and the polarization direction of the polarizer are parallel to each other.

6 . The three-dimensional display system according to claim 4 , wherein the refractive index adjusting device further comprises: a second alignment layer located on a side facing the liquid crystal layer of the second electrode.

7 . The three-dimensional display system according to claim 6 , wherein a rubbing direction of the second alignment layer and the rubbing direction of the first alignment layer are perpendicular to each other or parallel to each other.

8 . The three-dimensional display system according to claim 2 , wherein the refractive index adjusting device and the three-dimensional grating share the second substrate as a base substrate.

9 . The three-dimensional display system according to claim 1 , wherein the three-dimensional grating is an active grating or a passive grating.

10 . The three-dimensional display system according to claim 1 , wherein the display device is a liquid crystal display device or an organic electroluminescence display device.

11 . The three-dimensional display system according to claim 2 , wherein the voltage signal is within a range of 0V-5V.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Wei Wei

Classifications

• G02B30/25

  using polarisation techniques · CPC title

• H04N13/373

  for tracking forward-backward translational head movements, i.e. longitudinal movements · CPC title

• G02F1/133784

  by rubbing · CPC title

• H04N13/315

  the parallax barriers being time-variant · CPC title

• G02F2201/30

  grating · CPC title