Display device and display method

Patent metadata

Field	Value
Publication number	US-2018203324-A1
Application number	US-201615537575-A
Country	US
Kind code	A1
Filing date	Sep 26, 2016
Priority date	Apr 19, 2016
Publication date	Jul 19, 2018
Grant date	—

Abstract

A display device and a display method are provided. The display device includes a display assembly and a refractive component. The display assembly includes a display region and is configured to emit imaging light from the display region to default direction. The refractive component is disposed on a display side of the display assembly and configured to diverge or converge at least partial imaging light. The comfort degree of the head mounted virtual reality device is improved, or a head-mounted display device with anti peeping function is provided.

First claim

1 . A display device, comprising:
a display assembly including a display region and being configured to emit imaging light from the display region to a default direction; and a refractive component disposed on a display side of the display assembly and configured to diverge or converge at least partial imaging light.

2 . The display device according to claim 1 , wherein the refractive component is configured to be able to adjust the divergence or convergence degree of the at least partial imaging light.

3 . The display device according to claim 2 , wherein the refractive component comprises:
a first lens and a second lens spaced apart from each other; and an adjustment structure connected with the first lens and the second lens and configured to adjust a spacing between the first lens and the second lens.

4 . The display device according to claim 3 , wherein the first lens and the second lens are sequentially arranged along a propagation direction of the imaging light.

5 . The display device according to claim 4 , wherein the refractive component further comprises:
a third lens disposed on a side of the second lens away from the first lens, wherein the third lens is spaced apart from the first lens and the second lens.

6 . (canceled)

7 . The display device according to claim 5 , wherein the first lens, the second lens and the third lens are sequentially arranged along the propagation direction of the imaging light.

8 . The display device according to claim 5 , wherein both the first lens and the second lens are convex lenses, and the third lens is a concave lens.

9 . The display device according to claim 2 , wherein the refractive component is a liquid crystal lens.

10 . The display device according to claim 9 , wherein the liquid crystal lens comprises a first substrate and a second substrate arranged oppositely to each other, and a first electrode, a second electrode and a liquid crystal layer which are disposed between the first substrate and the second substrate; the first electrode and the second electrode are spaced apart from each other; and at least one of the first electrode or the second electrode includes a plurality of sub-electrodes spaced apart from each other.

11 . The display device according to claim 10 , wherein the second substrate is disposed between the first substrate and the display assembly; and
the second substrate is a polarizer, or the liquid crystal lens includes a polarizer disposed between the second substrate and the display assembly; wherein the liquid crystal lens and the display assembly share the polarizer.

12 . (canceled)

13 . The display device according to claim 11 , wherein the display assembly comprises a third substrate and a fourth substrate arranged oppositely to each other, and a liquid crystal layer disposed between the third substrate and the fourth substrate; and the third substrate is disposed between the polarizer and the fourth substrate.

14 . The display device according to claim 9 , wherein the liquid crystal lens comprises a drive unit which is configured to apply a voltage to the liquid crystal lens to change the diopter of the liquid crystal lens.

15 . The display device according to claim 14 , wherein the liquid crystal lens and the display assembly share the drive unit.

16 . The display device according to claim 1 , wherein the refractive component comprises:
a refractive unit configured to diverge or converge the at least partial imaging light; and a distance adjustment structure configured to change a distance between the refractive unit and the display region of the display assembly.

17 . The display device according to claim 1 , further comprising:
a detecting component in signal communication with the refractive component, wherein the refractive component is configured to adjust the divergence or convergence degree of the at least partial imaging light according to signals transmitted by the detecting component.

18 . The display device according to claim 17 , wherein the detecting component comprises an eye detecting unit configured to acquire eye information of the user, and a brain wave detecting unit configured to acquire brain wave information of the user.

19 . (canceled)

20 . The display device according to claim 1 , wherein the display device is a head-mounted display device, or a non-head-mounted display device.

21 . (canceled)

22 . A display method, comprising:
emitting imaging light from a display region of a display assembly to a default direction; and diverging or converging at least partial imaging light through a refractive component, in which the refractive component is disposed on a display side of the display assembly.

23 . The method according to claim 22 , further comprising: adjusting the divergence or convergence degree of the imaging light by changing a distance between the refractive component and the display assembly; or adjusting the divergence or convergence degree by changing the focal length of the refractive component.

24 . (canceled)

25 . (canceled)

26 . The method according to claim 23 , further comprising:
acquiring viewing information of a user, in which the viewing information of the user includes eye information or brain wave information of the user; and adjusting the divergence or convergence degree according to the viewing information.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Li Wenbo

Classifications

• G02C7/081

  Ophthalmic lenses with variable focal length · CPC title

• G02B27/0093

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

• G09G2354/00

  Aspects of interface with display user · CPC title

• G09G3/001

  using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background (slide projectors per se G03B23/00 = 42 HP) · CPC title

• G09G2300/0469

  Details of the physics of pixel operation · CPC title