Curved-screen immersive rear projection display
View Patent ↗The present invention provides an immersive rear projection display capable of providing aspect ratios of 2.66:1 or 4:1, or even greater. This allows viewers to be “immersed” in the images being displayed because the images can encompass both the direct and the peripheral views of a viewer. In one implementation, the immersive rear projection display includes two or more electronic projectors (e.g., three) that are positioned behind a curved translucent display screen. The electronic projectors project respective display images adjacent each other onto the display screen.
1. A curved-screen rear projection display, comprising:
a curved translucent display screen;
plural electronic projectors positioned behind the display screen to project respective display images adjacent each other onto the display screen; and
pincushion distortion-compensating optical elements in association with the electronic projectors to compensate for pincushion distortion arising from projection of display images onto the curved display screen.
2. The display of claim 1 in which the display screen has an aspect ratio of at least 2.66:1 for width-to-height.
3. The display of claim 1 in which the display screen has an aspect ratio of at least 4:1 for width-to-height.
4. The display of claim 1 in which the display screen is formed as a generally continuous curve with substantially no discontinuities in the curvature.
5. The display of claim 1 in which the display screen is curved laterally about a vertical axis.
6. The display of claim 1 in which the display screen is associated with a desktop workspace and is sized for viewing generally by only one viewer.
7. A computer workstation curved-screen rear projection display, comprising:
a computer workstation having at least one computer input device in communication with a computer;
a curved translucent display screen;
plural electronic projectors positioned behind the display screen and in communication with the computer to project respective computer display images adjacent each other onto the display screen; and
pincushion distortion compensating optical elements in association with the electronic projectors to compensate for pincushion distortion arising from projection of display images onto the curved display screen.
8. The display of claim 7 in which the display screen has an aspectration of at least 2.66:1 for width-to-height.
9. The display of claim 7 in which the display screen has an aspectration of at least 4:1 for width-to-height.
10. The display of claim 7 in which the display screen is formed as a generally continuous curve with substantially no discontinuities in the curvature.
11. The display of claim 7 in which the display screen is curved laterally about a vertical axis.
12. A curved-screen rear projection display, comprising:
a curved translucent display screen having an aspect ratio of at least 4:1 for width to height; and
plural electronic projectors positioned behind the display screen to project respective display images adjacent each other onto the display screen.
13. The display of claim 12 in which the display screen is formed as a generally continuous curve with substantially no discontinuities in the curvature.
14. The display of claim 12 further comprising pincushion distortion-compensating optical elements in association with the electronic projectors to compensate for pincushion distortion arising from projection of display images onto the curved display screen.
15. The display of claim 14 in which the pincushion distortion-compensating optical elements further comprise curved reflectors positioned in optical paths between the electronic projectors and the curved display screen.
16. The display of claim 12 in which the display screen is curved laterally about a vertical axis.
17. The display of claim 12 in which the display screen is associated with a desktop workspace and is configured and sized for viewing generally by only one viewer.
18. A computer workstation curved-screen rear projection display, comprising:
a computer workstation having at least one computer input device in communication with a computer;
a curved translucent display screen having an aspect ratio of at least 4:1 for width-to-height; and
plural electronic projectors positioned behind the display screen and in communication with the computer to project respective computer display images adjacent each other onto the display screen.
19. The display of claim 18 in which the display screen is formed as a generally continuous curve with substantially no discontinuities in the curvature.
20. The display of claim 18 in which the display screen is curved laterally about a vertical axis.
21. The display of claim 18 , further comprising pincushion distortion-compensating optical elements in association with the electronic projectors to compensate for pincushion distortion arising from projection of display images onto the curved display screen.
22. The display of claim 21 , in which the pincushion distortion-compensating optical elements further comprise curved reflectors positioned in optical paths between the electronic projectors and the curved display screen.
23. A curved-screen immersive rear projection display method, comprising:
providing display image signals corresponding to plural adjacent display image segments to plural respective rear-projection electronic projectors;
projecting the plural display images from the plural electronic projectors onto a rear surface of a curved translucent display screen; and
providing pincushion distortion compensation in association with the electronic projectors to compensate for pincushion distortion arising from the projection of display images onto the curved display screen.
24. The method of claim 23 further comprising providing the display image signals from a computer.
25. The method of claim 23 in which the display screen has an aspect ratio of at least 2.66:1 for width-to-height.
26. The method of claim 23 in which the display screen has an aspect ratio of at least 4:1 for width to height.
27. The method of claim 23 in which the display screen is formed as a generally continuous curve with substantially no discontinuities in the curvature.
28. The method of claim 23 in which the display screen is curved only laterally about a vertical axis.
29. The method of claim 23 in which the display screen is associated with a desktop workspace and is configured and sized for viewing generally by only one viewer.