Head-mounted display device including plurality of displays and plurality of eye lenses

Patent metadata

Field	Value
Publication number	US-10288885-B2
Application number	US-201715621275-A
Country	US
Kind code	B2
Filing date	Jun 13, 2017
Priority date	Jun 28, 2016
Publication date	May 14, 2019
Grant date	May 14, 2019

Abstract

A head-mounted display device includes: a first display that displays a first image, the first display being located in front of a pupil of a user in a forward-looking-state in which the pupil is looking forward; a second display that displays a second image, the second display being located diagonally in front of the pupil in the forward-looking-state; a first eye lens that causes first light of the first image to pass through the pupil, the first eye lens being located between the pupil and the first display in the forward-looking-state; and a second eye lens that causes second light of the second image to pass through the pupil, the second eye lens being located between the pupil and the second display in the forward-looking-state. The distance between the second display and the second eye lens decreases as a distance from the first display increases.

First claim

What is claimed is:

1. A head-mounted display device configured to be worn on a user's head, the head-mounted display comprising:
a first display that displays a first image, the first display being located in front of a pupil of the user in a forward-looking-state in which the pupil is looking forward of the user;
a second display that displays a second image, the second display being located diagonally in front of the pupil in the forward-looking-state;
a first eye lens that causes first light of the first image to pass through the pupil, the first eye lens being located between the pupil and the first display in the forward-looking-state; and
a second eye lens that causes second light of the second image to pass through the pupil, the second eye lens being located between the pupil and the second display in the forward-looking-state, a distance between the second display and the second eye lens decreasing as a distance from the first display increases,
wherein a lens surface, which faces the second display, of the second eye lens includes:
a plurality of ring surfaces arranged from inside of the second eye lens toward outside of the second eye lens; and
a plurality of rising surfaces each extending between adjacent two of the plurality of ring surfaces.

2. The head-mounted display device according to claim 1 , wherein the second display and the second eye lens cause at least part of the second light to converge toward behind a retina of the user in the forward-looking-state.

3. The head-mounted display device according to claim 1 , wherein
the second eye lens includes:
a first edge that is in contact with the first eye lens and has a linear shape when seen from an optical axis direction of the second eye lens; and
a second edge that is located opposite to the first edge and has a circular arc shape when seen from the optical axis direction.

4. The head-mounted display device according to claim 1 , wherein:
each of the plurality of rising surfaces includes an inclined surface at a position closer to the first eye lens than a center of the lens surface, and
a normal vector to the inclined surface is tilted in a direction toward the second display with reference to a vector perpendicularly directed to an optical axis of the second eye lens from the inclined surface.

5. The head-mounted display device according to claim 1 , wherein the first eye lens has a horizontal angle of view of 60 degrees or larger to 120 degrees or smaller.

6. The head-mounted display device according to claim 1 , wherein each of the plurality of ring surfaces becomes narrower in width as a distance from the first eye lens increases.

7. The head-mounted display device according to claim 1 , wherein:
the lens surface of the second eye lens includes:
a first area that is closer to the first eye lens than a center of the lens surface; and
a second area that is farther from the first eye lens than the center of the lens surface, and

at least one of the plurality of rising surfaces in the second area is greater in width than the plurality of rising surfaces in the first area.

8. The head-mounted display device according to claim 1 , wherein an edge of the second eye lens is contact with an edge of the first eye lens over a vertical area of 20 degrees or larger of the user's field of vision.

9. The head-mounted display device according to claim 1 , wherein a first space through which light propagates from the first display to the first eye lens and a second space through which light propagates from the second display to the second eye lens are separated from each other.

10. The head-mounted display device according to claim 1 , wherein the first display and the second display are included in one curved display panel.

11. The head-mounted display device according to claim 10 , wherein the curved display panel is flexible.

12. The head-mounted display device according to claim 1 , further comprising an image processor that acquires an original image and extracts the first image and the second image from the original image,
wherein part of the first image overlaps part of the second image.

13. The head-mounted display device according to claim 12 , wherein the image processor further corrects at least either the first image or the second image to make the second image smaller in size than the first image.

14. The head-mounted display device according to claim 12 , wherein the extracted second image is shorter in horizontal length than the extracted first image.

15. The head-mounted display device according to claim 12 , wherein the image processor further performs at least one selected from the group consisting of a first correction and a second correction, the first correction correcting the first image according to an aberration property of the first eye lens, the second correction correcting the second image according to an aberration property of the second eye lens.

16. The head-mounted display device according to claim 12 , wherein the image processor further performs at least one selected from the group consisting of a first correction and a second correction, the first correction correcting a color tone of the first image according to a viewing angle characteristic of the first display, the second correction correcting a color tone of the second image according to a viewing angle characteristic of the second display.

17. The head-mounted display device according to claim 1 , wherein at least one of the first eye lens and the second eye lens includes a film, a coating layer, or a film for adjusting a color tone of the first or second image according to a viewing angle characteristic of the first or second display.

18. A head-mounted display device configured to be worn on a user's head, the head-mounted display comprising:
a first display that displays a first image, the first display being located in front of a pupil of the user in a forward-looking-state in which the pupil is looking forward of the user;
a second display that displays a second image, the second display being located diagonally in front of the pupil in the forward-looking-state;
a first eye lens that causes first light of the first image to pass through the pupil, the first eye lens being located between the pupil and the first display in the forward-looking-state; and
a second eye lens that causes second light of the second image to pass through the pupil, the second eye lens being located between the pupil and the second display in the forward-looking-state, a distance between the second display and the second eye lens decreasing as a distance from the first display increases,
wherein a lens surface, which faces the first display, of the first eye lens includes:
a plurality of ring surfaces arranged from inside of the first eye lens toward outside of the first eye lens; and
a plurality of rising surfaces each extending between adjacent two of the plurality of ring surfaces.

19. The head-mounted display device according to claim 18 , wherein
the lens surface of the first eye lens further includes:
a convex lens surface surrounded by the plurality of ring surfaces, a center of the convex lens surface is more protruded toward the first display than an envelope surface touching the plurality of ring surfaces.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Makino Hiroyasu

Classifications

• G02B27/0172 Primary

  characterised by optical features · CPC title

• G02B6/003

  Lens or lenticular sheet or layer · CPC title

• G02B27/0176

  characterised by mechanical features · CPC title

• G02B7/28

  Systems for automatic generation of focusing signals · CPC title

• G02B27/0093

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