Image display device

Patent metadata

Field	Value
Publication number	US-11619867-B2
Application number	US-201917295518-A
Country	US
Kind code	B2
Filing date	Nov 14, 2019
Priority date	Nov 27, 2018
Publication date	Apr 4, 2023
Grant date	Apr 4, 2023

Abstract

To provide a new method for displaying a video image on a whole circumference screen. Provided is an image display device including: an emission unit configured to emit image light along a predetermined axis; a screen arranged over a whole circumference around the predetermined axis and having a cylindrical shape with the predetermined axis as a substantially central axis; and an optical unit arranged to face the emission unit with the predetermined axis as a reference, and configured to control an incident angle of the image light emitted by the emission unit, the incident angle being with respect to the screen, in which a video image displayed by the image light incident on the screen is simultaneously displayed over a whole circumference around the predetermined axis.

First claim

The invention claimed is:

1. An image display device comprising:
a light source configured to emit image light along a predetermined axis;
a screen arranged over a whole circumference around the predetermined axis and having a cylindrical shape with the predetermined axis as a substantially central axis;
a reflector arranged to face the light source with the predetermined axis as a reference, and configured to control an incident angle of the image light emitted by the light source, the incident angle being with respect to the screen; and
a plurality of cameras configured to capture an image of a user, wherein tracking is performed on a basis of a first video image captured by the plurality of cameras,
wherein a second video image displayed by the image light incident on the screen is simultaneously displayed over a whole circumference of the screen around the predetermined axis.

2. The image display device according to claim 1 , wherein a plurality of contents is visually recognized in a superimposed manner in the second video image when viewed from a predetermined direction of the screen.

3. The image display device according to claim 1 , wherein brightness is partially adjusted in the second video image.

4. The image display device according to claim 1 , wherein the second video image is continuous along a circumferential direction of the screen.

5. The image display device according to claim 4 , wherein the second video image rotates around the predetermined.

6. The image display device according to claim 1 , wherein the second video image has an information display area having a strip shape that is continuous along a circumferential direction of the screen in an upper part of the screen.

7. The image display device according to claim 6 , wherein the information display area slides in downward from an upper end of the screen.

8. The image display device according to claim 6 , wherein the second video image has a difference in lightness between the information display area and a region other than the information display area.

9. The image display device according to claim 6 , wherein the information display area rotates around the predetermined axis, and a speed of the rotation changes depending on a content of information.

10. An image display device comprising:
a light source configured to emit image light along a predetermined axis;
a screen arranged over a whole circumference around the predetermined axis and having a cylindrical shape with the predetermined axis as a substantially central axis; and
a reflector arranged to face the light source with the predetermined axis as a reference, and configured to control an incident angle of the image light emitted by the light source, the incident angle being with respect to the screen;
wherein a video image displayed by the image light incident on the screen is simultaneously displayed over a whole circumference of the screen around the predetermined axis, wherein the video image has an information display area having a strip shape that is continuous along a circumferential direction of the screen in an upper part of the screen.

11. The image display device according to claim 10 , wherein the information display area slides in downward from an upper end of the screen.

12. The image display device according to claim 10 , wherein the video image has a difference in lightness between the information display area and a region other than the information display area.

13. The image display device according to claim 10 , wherein the information display area rotates around the predetermined axis, and a speed of the rotation changes depending on a content of information.

14. The image display device according to claim 10 , wherein a plurality of contents is visually recognized in a superimposed manner in the video image when viewed from a predetermined direction of the screen.

15. The image display device according to claim 10 , wherein brightness is partially adjusted in the video image.

16. The image display device according to claim 10 , wherein the video image is continuous along a circumferential direction of the screen.

17. The image display device according to claim 10 , wherein the video image rotates around the predetermined axis.

18. The image display device according to claim 10 , further comprising a plurality of cameras configured to capture an image of a user, wherein tracking is performed on a basis of a video image captured by the plurality of cameras.

Assignees

• Sony Group Corp

Inventors

• Furue Nobuki
• Okumura Mitsuo
• Ohki Yoshihito
• Nakamura Tomoharu

Classifications

• H04N13/393

  the volume being generated by a moving, e.g. vibrating or rotating, surface · CPC title

• G03B21/10

  Projectors with built-in or built-on screen · CPC title

• G03B35/18 Primary

  by simultaneous viewing · CPC title

• G03B21/28

  Reflectors in projection beam {(in illumination beam G03B21/2066)} · CPC title

• H04N9/3185

  Geometric adjustment, e.g. keystone or convergence (optical or mechanical adjustment of convergence H04N9/317; using scanning means H04N3/22; optical or mechanical adjustments of projectors not peculiar to the presence of an electronic spatial light modulator G03B21/14) · CPC title