DISPLAY DEVICE, DISPLAY METHOD AND HEAD-MOUNTED VIRTUAL DISPLAY HELMET

• US 20180113302A1
• Filed: 08/16/2017
• Published: 04/26/2018
• Est. Priority Date: 10/24/2016
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Wu, Naifu, Shi, Bing chuan
• Granted Patent: US 10,613,322 B2
• Time in Patent Office: Days
• CPC Class Codes: G02B 13/16 for use in conjunction with image converters or intensifiers , or for use with projectors, e.g. objectives for projection TV
• CPC Class Codes: G02B 2027/012 comprising devices for attenuating parasitic image effects
• CPC Class Codes: G02B 26/02 for controlling the intensity of light G02B26/004 takes precedence
• CPC Class Codes: G02B 27/0025 for optical correction, e.g. distorsion, aberration
• CPC Class Codes: G02B 27/0172 characterised by optical features
• CPC Class Codes: G02B 5/005 Diaphragms for cameras G03B9/02
• CPC Class Codes: G02B 9/04 having two components only

Abstract

Embodiments of the present disclosure disclose a display device, a display method and a head-mounted virtual display helmet. The display device includes: a display panel; and a first lens having a first focal length, a spatial filtering component configured for filtering and a second lens having a second focal length which are arranged in order at a light exit side of the display panel, wherein the second focal length is different from the first focal length.

Claims

1. A display device, comprising:

a display panel; and

a first lens having a first focal length, a spatial filtering component configured for filtering and a second lens having a second focal length which are arranged in order at a light exit side of the display panel,

wherein the second focal length is different from the first focal length.

2. The display device according to claim 1, wherein the spatial filtering component is a diaphragm having an aperture which has an adjustable diameter.

3. The display device according to claim 1, wherein a distance between the display panel and the first lens is equal to the first focal length.

4. The display device according to claim 3, wherein a distance between the diaphragm and the first lens is equal to the first focal length;

and a distance between the diaphragm and the second lens is equal to the second focal length.

5. The display device according to claim 1, wherein the second focal length is greater than the first focal length.

6. The display device according to claim 1, wherein the first focal length is in a range of 50 mm to 70 mm.

7. The display device according to claim 1, wherein each of the first lens and the second lens is a convex lens.

8. The display device according to claim 7, wherein the first lens and the second lens have a same primary optical axis;

and a central point of an aperture of the diaphragm is located on the primary optical axis.

9. The display device according to claim 1, wherein the display panel is a liquid crystal display panel or an electroluminescent display panel.

10. The display device according to claim 2, wherein the display panel is a liquid crystal display panel or an electroluminescent display panel.

11. The display device according to claim 3, wherein the display panel is a liquid crystal display panel or an electroluminescent display panel.

12. The display device according to claim 4, wherein the display panel is a liquid crystal display panel or an electroluminescent display panel.

13. The display device according to claim 5, wherein the display panel is a liquid crystal display panel or an electroluminescent display panel.

14. The display device according to claim 6, wherein the display panel is a liquid crystal display panel or an electroluminescent display panel.

15. The display device according to claim 7, wherein the display panel is a liquid crystal display panel or an electroluminescent display panel.

16. The display device according to claim 8, wherein the display panel is a liquid crystal display panel or an electroluminescent display panel.

17. A head-mounted virtual display helmet, comprising the display device according to claim 1.

18. A head-mounted virtual display helmet, comprising the display device according to claim 2.

19. A head-mounted virtual display helmet, comprising the display device according to claim 3.

20. A display method for the display device according to claim 1, comprising:

filtering a light ray emitted from the display panel by adjusting the spatial filtering component after the light ray is processed by the first lens; and

transmitting the light ray to the second lens.