Claims
- 1. A display system comprising:a light source for producing a beam of white light along a first light path; a filter wheel on said first light path for filtering said beam of white light, said filter wheel having at least one set of primary colored filters thereon; a motor connected to said filter wheel for spinning said filter wheel at a nominal speed; a spatial light modulator on said first light path for receiving said filtered beam of light traveling along said first path and selectively modulating said filtered beam of light traveling along said first path to form an image; and a controller receiving an input video signal at a video frame rate and providing image data decoded from said input video signal to said spatial light modulator, said input video signal having one of at least two native frame rates, said controller detecting said native frame rate and converting said input video signal to said native frame rate when said native frame rate is not equal to said video frame rate and displaying said decoded image data at said native frame rate.
- 2. The display system of claim 1, said nominal speed being 120 revolutions per second.
- 3. The display system of claim 1, said filter wheel having two sets of filters.
- 4. The display system of claim 1, said controller operable to receive an input video signal having a 60 Hz native frame rate or a 24 Hz native frame rate.
- 5. The display system of claim 4, said color wheel rotating 2 revolutions per native frame period when said native frame rate is 60 Hz.
- 6. The display system of claim 4, said color wheel rotating 5 revolutions per native frame period when said native frame rate is 24 Hz.
- 7. The display system of claim 4, said controller further operable to receive an input video signal having a 30 Hz native frame rate, said color wheel rotating 4 revolutions per native frame period when said native frame rate is 30 Hz.
- 8. A method of operating a sequential color display system comprising the steps of:spinning a color wheel at a nominal speed; receiving an input video signal; detecting a native frame rate of said input video signal; converting said input video signal to said native frame rate; and displaying said input video signal at said native frame rate using said color wheel spinning at a nominal speed.
- 9. The method of claim 8, said step of receiving an input video signal comprising the step of receiving an input video signal having a 60 Hz native frame rate.
- 10. The method of claim 8, said step of receiving an input video signal comprising the step of receiving a input video signal having a 30 Hz native frame rate.
- 11. The method of claim 8, said step of receiving an input video signal comprising the step of receiving an input video signal having a 24 Hz native frame rate.
- 12. The method of claim 8, said step of spinning a color wheel comprising the step of spinning said color wheel at 120 Hz.
- 13. The method of claim 8, said step of spinning a color wheel comprising the step of spinning said color wheel at 180 Hz.
- 14. A display system comprising:a filter wheel operable at a nominal rate and having at least one set of color filters; a display operable to form an image bearing beam of light colored by said filter wheel; and a controller receiving an input video signal at a video frame rate and providing image data decoded from said input video signal to said display, said input video signal having a native frame rate less than said video frame rate, said controller detecting said native frame rate and providing said image data to said display at said native frame rate, wherein the number of said sets of color filters multiplied by said nominal rate, divided by said native rate is an integer.
- 15. The display system of claim 14, said nominal rate being 120 revolutions per second.
- 16. The display system of claim 14, said filter wheel having two sets of filters.
- 17. The display system of claim 14, said filter wheel having a clear segment.
- 18. The display system of claim 14, said filter wheel having a clear segment for each set of said color filters.
- 19. The display system of claim 14, said video frame rate being 60 Hz and said native frame rate being 24 Hz.
- 20. The display system of claim 14, said controller operable to receive said input video signals having a 60 Hz video frame rate and a native frame rates of 60 Hz, 30 Hz, and 24 Hz.
- 21. A method of operating a sequential color display system comprising the steps of:spinning a color wheel having at least one set of color filters at a nominal rate; receiving an input video signal at a video frame rate, said input video signal having a native frame rate less than said video frame rate; converting said input video signal to a video stream at said native frame rate; and displaying said video stream at said native frame rate using said color wheel spinning at a nominal speed, wherein the number of said sets of color filters multiplied by said nominal rate, divided by said native rate is an integer.
Parent Case Info
This application claims priority under 35 USC §119(e)(1) of provisional application No. 60/173,858 filed Dec. 30, 1999.
US Referenced Citations (11)
Non-Patent Literature Citations (1)
Entry |
U.S. patent application Ser. No. 09/745,906, Ohara et al., filed Dec. 21, 2000. |
Provisional Applications (1)
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Number |
Date |
Country |
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60/173858 |
Dec 1999 |
US |