Integrated imaging apparatus and display device

Patent metadata

Field	Value
Publication number	US-11067871-B2
Application number	US-201816196305-A
Country	US
Kind code	B2
Filing date	Nov 20, 2018
Priority date	May 24, 2018
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

The present disclosure provides an integrated imaging apparatus and a display device. The integrated imaging apparatus includes: a display member, an incident light adjusting member, a lens array and a second lens that are sequentially arranged. The display member is configured to display an image; the incident light adjusting member is configured to reduce a pixel divergence angle of an incident light emitted by the display member; the lens array includes a plurality of first lens, the plurality of first lens being arranged on a plane parallel to the display member; and the second lens and the display member are coaxially arranged. The present disclosure effectively extends the field of depth, thereby improving the imaging effect of the integrated imaging apparatus.

First claim

What is claimed is:

1. An integrated imaging apparatus, comprising: a display member, an incident light adjusting member, a lens array and a second lens that are sequentially arranged; wherein
the display member is configured to display an image;
the incident light adjusting member has an adjustable refractive index, and is configured to reduce a pixel divergence angle of an incident light emitted by the display member;
the lens array comprises a plurality of first lens, the plurality of first lens being arranged on a plane parallel to the display member; and
the second lens and the display member are coaxially arranged,
wherein the display member is a display panel having a plurality of pixel units, and the incident light adjusting member has a plurality of prism groups one-to-one corresponding to the plurality of pixel units, the prism group being configured to reduce a pixel divergence angle of an incident light of a corresponding pixel unit in the display panel;
the prism group comprises a first prism unit and a second prism unit that are symmetrically arranged, a light incident surface of the first prism unit and a light incident surface of the second prism unit being in a same plane; and,
the prism group is configured to enable a pixel divergence angle θ of the incident light of the corresponding pixel unit and a deflection angle α of a light emergent from the prism group to satisfy θ−2α≤θ0; wherein θ0=2 arctan [p/(2×g)], g being a distance from the display member to the lens array, and p being a diameter of a first lens in the lens array.

2. The integrated imaging apparatus according to claim 1 , wherein the incident light adjusting unit is a liquid crystal prism.

3. The integrated imaging apparatus according to claim 2 , wherein the liquid crystal prism comprises: a first substrate, a second substrate, a first electrode layer, a second electrode layer and a liquid crystal layer; wherein
the second electrode layer is arranged on the first substrate, the first electrode layer is arranged on the second substrate, the second electrode layer comprises a plurality of second electrodes, and the liquid crystal layer is arranged between the first electrode layer and the second electrode layer.

4. The integrated imaging apparatus according to claim 3 , wherein the liquid crystal prism further comprises a first orientation layer, the first orientation layer being disposed on a side of the second electrode layer distal from the first substrate.

5. The integrated imaging apparatus according to claim 3 , wherein the liquid crystal prism further comprises a first orientation layer, the second orientation layer being disposed on a side of the first electrode layer distal from the second substrate.

6. The integrated imaging apparatus according to claim 3 , wherein the first electrode layer is made from a transparent conductive material.

7. The integrated imaging apparatus according to claim 3 , wherein the second electrode layer is made from a transparent conductive material.

8. The integrated imaging apparatus according to claim 3 , wherein the first electrode layer is made from indium tin oxide.

9. The integrated imaging apparatus according to claim 3 , wherein the second electrode layer is made from indium tin oxide.

10. The integrated imaging apparatus according to claim 3 , wherein the liquid crystal prism has a plurality of prism groups one-to-one corresponding to the plurality of pixel units, each of the prism groups comprising a first prism unit and a second prism unit that are symmetrically arranged, a light incident surface of the first prism unit and a light incident surface of the second prism unit being in a same plane;
wherein each of the first prism units and each of the second prism units both comprise a first electrode layer, a plurality of second electrodes and a liquid crystal layer arranged between the first electrode layer and the plurality of second electrodes, a potential difference between the plurality of second electrodes and the first electrode layer of each of the first prism units gradually increasing along a first direction, a potential difference between the plurality of second electrodes and the first electrode layer of each of the second prism units gradually decreasing along the first direction, and a plurality of first prism units and a plurality of second prism units in the liquid crystal prism are arranged in a staggered manner along the first direction.

11. The integrated imaging apparatus according to claim 3 , wherein the second electrode layer comprises a first sub-electrode layer and a second sub-electrode layer that are insulated from each other, the first sub-electrode layer and the second sub-electrode layer both comprising a plurality of second electrodes, an orthographic projection of the second electrodes of the first sub-electrode layer on the first substrate not overlapping an orthographic projection of the second electrodes of the second sub-electrode layer on the first substrate.

12. The integrated imaging apparatus according to claim 11 , wherein the plurality of second electrodes of the first sub-electrode layer and the plurality of second electrodes of the second sub-electrode layer are arranged in a staggered manner.

13. The integrated imaging apparatus according to claim 11 , wherein the liquid crystal prism further comprises an insulating layer, the insulating layer being arranged between the first electrode layer and the second electrode layer.

14. The integrated imaging apparatus according to claim 1 , wherein the integrated imaging apparatus comprises: a display member, a liquid crystal prism, a lens array and a second lens that are sequentially arranged; wherein
the display member is configured to display an image;
the liquid crystal prism has an adjustable refractive index, and is configured to reduce a pixel divergence angle of an incident light emitted by the display member;
the lens array comprises a plurality of first lens, the plurality of first lens being arranged on a plane parallel to the display member;
the second lens and the display member are coaxially arranged;
the liquid crystal prism comprises: a first sub-electrode layer, an insulating layer, a second sub-electrode layer and an orientation layer that are stacked on the first substrate, the first sub-electrode layer and the second sub-electrode layer both comprising a plurality of second electrodes, the plurality of second electrodes of the first sub-electrode layer and the plurality of second electrode of the second sub-electrode layer being arranged in a staggered manner, an orthographic projection of the second electrodes of the first sub-electrode layer on the first substrate not overlapping an orthographic projection of the second electrodes of the second sub-electrode layer on the first substrate;
a first electrode layer and a second orientation layer stacked on the second substrate; and
a liquid crystal layer arranged between the first orientation layer and the second orientation layer;
wherein the liquid crystal prism has a plurality of prism groups one-to-one corresponding to the plurality of pixel units, each of the prism groups comprising a first prism unit and a second prism unit that are symmetrically arranged, a light incident surface of the first prism unit and a light incident surface of the second prism unit are in a same plane;
wherein each of the first prism units and each of the second prism units both comprise a first electrode layer, a plurality of second electrodes and a liquid crystal layer arranged between the first electrode layer and the plurality of second electrodes, a potential diff

Assignees

• Boe Technology Group Co Ltd

Inventors

• Wei Baoqiang
• Tan Jifeng
• Chen Xiaochuan
• Zhao Wenqing
• Dong Xue
• Chen Chenyu
• Niu Xiaochen

Classifications

• G02F1/294

  Variable focal length devices · CPC title

• G02F1/29 Primary

  for the control of the position or the direction of light beams, i.e. deflection · CPC title

• G02B30/27 Primary

  involving lenticular arrays · CPC title

• G02F2201/12

  electrode · CPC title

• G02F1/13439

  characterised by their electrical, optical, physical properties; materials therefor; method of making · CPC title