Autostereoscopic display

• US 7,375,885 B2
• Filed: 03/26/2004
• Issued: 05/20/2008
• Est. Priority Date: 03/31/2003
• Status: Expired due to Fees

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Ijzerman, Willem Lubertus, Krijn, Marcellinus Petrus Carolus Michael
• Primary Examiner(s): Allen; Stephone B.
• Assistant Examiner(s): FINEMAN, LEE A
• Application Number:
  US10/550,880
• Publication Number:
  US 20060262395A1
• Time in Patent Office: 1,516 Days
• Field of Search: None
• US Class Current: 359/462
• CPC Class Codes: G02B 30/27 involving lenticular arrays
• CPC Class Codes: H04N 13/305 using lenticular lenses, e.g. arrangements of cylindrical lenses
• CPC Class Codes: H04N 13/307 using fly-eye lenses, e.g. arrangements of circular lenses
• CPC Class Codes: H04N 13/31 using parallax barriers
• CPC Class Codes: H04N 13/359 Switching between monoscopic and stereoscopic modes

Abstract

In an autostereoscopic display, a cylindrical lens focuses collimated light emitted from pixels of a display array, and a scanning device sequentially provides the light to openings in a display screen. The image information is provided in the display area at a rate corresponding to the frequency of the scanning of the openings in the display screen to provide the autostereoscopic image.

Claims

1. An autostereoscopic display device comprising:

a display array that includes a number of addressable pixels,

a means for addressing the pixels in the display array to form an image,

a means for providing collimated light emitted by the pixels of the display array,

a display screen that includes a number of openings,

a cylindrical lens for focusing the collimated light onto the openings of the display screen,

a scanning means to sequentially scan the image from the cylindrical lens over said openings on the display screen, and

means for changing the image information on the display array at a rate corresponding to a frequency of scanning of the openings in the display screen.

2. The autostereoscopic display device of claim 1, wherein the device includes cylindrical lenses that are in, near to or on the display screen.

3. The autostereoscopic display device of claim 1, wherein the display device includes a lens between the scanning means and the display screen.

4. The autostereoscopic display device of claim 1, wherein the display device includes index light sensors on or near the display screen.

5. The autostereoscopic display device of claim 1, wherein the display device includes a shadow mask between the scanning means and the display screen.

6. An autostereoscopic display device comprising:

a display array that includes a number of addressable pixels for forming an image,

a display screen that includes a number of openings,

a cylindrical lens that is configured to;

receive collimated light emitted by the pixels of the display array, and

focus the collimated light upon the openings on the display screen,

a scanning device that is configured to sequentially scan the image from the cylindrical lens over the openings on the display screen, and

a controller that is configured to change the image information on the display array at a rate corresponding to a frequency of scanning the openings in the display screen.

7. The autostereoscopic display device of claim 6, wherein the device includes cylindrical lenses that are in, near to, or on the display screen.

8. The autostereoscopic display device of claim 7, wherein the display device includes a lens between the scanning device and the display screen.

9. The autostereoscopic display device of claim 8, wherein the display device includes index light sensors on or near the display screen.

10. The autostereoscopic display device of claim 7, wherein the display device includes index light sensors on or near the display screen.

11. The autostereoscopic display device of claim 7, wherein the display device includes a lens between the scanning device and the display screen.

12. The autostereoscopic display device of claim 6, wherein the display device includes a lens between the scanning device and the display screen.

13. The autostereoscopic display device of claim 12, wherein the display device includes index light sensors on or near the display screen.

14. The autostereoscopic display device of claim 13, wherein the display device includes a shadow mask between the scanning means and the display screen.

15. The autostereoscopic display device of claim 6, wherein the display device includes index light sensors on or near the display screen.

16. The autostereoscopic display device of claim 15, wherein the display device includes a shadow mask between the scanning means and the display screen.

17. The autostereoscopic display device of claim 6, wherein the display device includes a shadow mask between the scanning means and the display screen.