Claims
- 1. A method of generating data for a color display, the method comprising:
receiving a plurality of digital data signals, the digital data signals representing bits of data to be displayed during a frame, the bits of data comprising different color bits; arranging the bits of data into a plurality of constant-weight segments so that the data displayed during each of a plurality of equal length time periods will comprise a plurality of color bands; and providing the segments to a digital display system.
- 2. The method of claim 1 wherein the constant-weight segments comprise curved segments aligned with an optical display device.
- 3. The method of claim 2 further comprising determining one or more rectangular blocks of data bits of a color corresponding to one of the curved color segments, the rectangular blocks comprising data to be displayed during contiguous time periods proportional to weights of each block, wherein the total of the contiguous time periods is equal to one of the equal length time periods.
- 4. The method of claim 3 wherein the first time period greater than about five times as long as the second time period.
- 5. The method of claim 2 and further comprising determining a curved block of white or a secondary color least significant bits that can be displayed during one of the equal length time periods.
- 6. The method of claim 1 wherein the digital data signals represent bits of red, green and blue data.
- 7. The method of claim 6 wherein the digital data signals further represent bits of white or secondary color data.
- 8. The method of claim 1 and further comprising generating the plurality of digital data signals from an analog video signal.
- 9. The method of claim 1 and further comprising displaying the data bits at the digital display system.
- 10. The method of claim 1 wherein the digital display system includes a DMD spatial light modulator.
- 11. The method of claim 1 wherein the data bits comprise a plurality of color cycles for a single frame of data.
- 12. The method of claim 11 wherein each frame of data includes at least three color cycles.
- 13. A display system comprising:
a light source; a color wheel; an optical section arranged to receive light from the light source and direct the light toward a color wheel; and a digital micromirror device arranged to receive the light from the color wheel and to direct image data toward a display, wherein the image data comprises an array of pixels arranged in rows and columns and wherein the array of pixels comprises pixels of at least three colors that are to be displayed simultaneously.
- 14. The system of claim 13 wherein the array of pixels comprises curved color bands.
- 15. The system of claim 14 wherein the array of pixels further comprises rectangular color bands that can change during a period shorter than a display period of the curved color bands.
- 16. The system of claim 13 wherein the light source comprises an arc lamp.
- 17. The system of claim 13 wherein the optical section includes an integrator rod.
- 18. The system of claim 13 and further comprising a second optical section arranged between the color wheel and the digital micromirror device.
- 19. The system of claim 18 wherein the second optical section includes a first lens and a second lens such that light from the color wheel is transmitted through the first lens and the second lens.
- 20. The system of claim 13 wherein the color wheel has a color pattern in a spiral of Archimedes.
- 21. The system of claim 20 wherein the color wheel includes a red band, a blue band and a green band.
- 22. The system of claim 21 wherein the color wheel further comprises a white or secondary color band.
- 23. The system of claim 20 wherein the color wheel has a diameter no greater than about 45 mm.
- 24. The system of claim 23 wherein the color wheel has a diameter no greater than about 25 mm.
- 25. The system of claim 13 wherein the image data over a frame is generated to have 256 levels of intensity.
- 26. The system of claim 25 wherein the 256 levels are determined by eight control bits, wherein a state of the pixels in the array of pixels during an MSB time period are controlled by four of the eight control bits and the state of pixels may be changed for some period of time during the MSB time period in accordance with the other four of the control bits.
- 27. The system of claim 13 and further comprising a graphics memory with an output coupled to a data input of the digital micromirror device.
- 28. The system of claim 27 and further comprising a multiplexer with an output coupled to an input of the graphics memory.
- 29. The system of claim 28 and further comprising a digital video source with an output coupled to the multiplexer.
- 30. The system of claim 29 and further comprising processing circuitry coupled between the digital video source and the multiplexer.
- 31. The system of claim 30 wherein the processing circuitry includes red-green-blue-white hue correction circuit.
- 32. The system of claim 30 wherein the processing circuitry includes a degamma circuit.
- 33. The system of claim 30 wherein the processing circuitry includes a blue-noise STM circuit.
- 34. The system of claim 30 wherein the processing circuitry includes a secondary color boost/spoke light recapture circuit.
- 35. The system of claim 30 wherein the processing circuitry includes a noise-free boundary dispersion circuit.
- 36. The system of claim 13 and further comprising a sequencer with an output coupled to an input of the digital micromirror device.
- 37. The system of claim 13 and further comprising a processor with an output coupled to the input of the sequencer.
- 38. The system of claim 39 wherein the processor comprises a microprocessor.
- 39. The system of claim 38 and further comprising a digital video source, the digital video source providing timing and control data to the sequencer, the digital video source providing pixel data to the digital micromirror device.
- 40. A digital display system comprising:
a digital video source; a sequencer receiving control signals from the video source; a data formatter receiving data signals from the video source; a graphics memory receiving formatted data signals from the data formatter, wherein the formatted data signals are arranged in a series of bit-planes, at least some of the bit-planes including data related to more than one color; and a spatial light modulator with a control input coupled to the sequencer and a data input coupled to the graphics memory.
- 41. The system of claim 40 wherein the formatted data signals comprise an array of pixels arranged in rows and columns and wherein the array of pixels comprises curved color bands during a first time period and rectangular color bands during a second time period, the second time period being concurrent with but of a shorter duration than the first time period.
- 42. The system of claim 40 wherein the digital video source comprises an XGA source.
- 43. The system of claim 40 and further comprising a microprocessor coupled between the digital video source and the sequencer.
- 44. The system of claim 40 wherein the data formatter includes a multiplexer.
- 45. The system of claim 40 wherein the graphics memory comprises an array of dynamic random access memory cells, the array including at least 128 Mbits of memory.
- 46. The system of claim 40 and further comprising processing circuitry coupled between the digital video source and the data formatter.
- 47. The system of claim 46 wherein the processing circuitry includes red-green-blue-white hue correction circuit.
- 48. The system of claim 47 wherein the processing circuitry includes a degamma circuit.
- 49. The system of claim 47 wherein the processing circuitry includes a blue-noise STM circuit.
- 50. The system of claim 47 wherein the processing circuitry includes a secondary color boost/spoke light recapture circuit.
- 51. The system of claim 47 wherein the processing circuitry includes a noise-free boundary dispersion circuit.
- 52. The system of claim 40 wherein the spatial light modulator comprises a digital micromirror device.
- 53. The system of claim 52 and further comprising a light source for generating light and an optics section for directing the light toward the digital micromirror device, the light passing through a color wheel before reaching the digital micromirror device.
- 54. The system of claim 53 wherein the color wheel has a color pattern in a spiral of Archimedes.
- 55. The system of claim 54 wherein the color wheel includes a red band, a blue band and a green band.
- 56. The system of claim 55 wherein the color wheel further comprises a white or secondary color band.
- 57. The system of claim 54 wherein the color wheel has a diameter no greater than about 45mm.
- 58. The system of claim 57 wherein the color wheel has a diameter no greater than about 25 mm.
- 59. The system of claim 40 wherein the data formatter reformats data signals from the video source to generate at least three types of bit planes.
- 60. The system of claim 59 wherein the three types of bit planes comprise:
color LSB bit planes that comprise bits of a single color; non-LSB bit planes that comprise bits of different colors; and white LSB bit planes that contain bits of different colors that represent white LSBs.
- 61. The system of claim 59 wherein each of the bit planes is organized in sub-blocks, each sub-block representing data that is spatially contiguous when displayed at the spatial light modulator.
- 62. The system of claim 61 wherein the sequencer reads a first sub-block within a first bit plane and then reads a second sub-block within a second bit-plane, the first sub-block and the second sub-block being displayed at the spatial light modulator within a single frame.
- 63. The system of claim 40 wherein the formatted data signals comprise an array of pixels arranged in rows and columns and wherein the array of pixels comprises curved color bands, each of the curved color bands being stored in a plurality of the bit planes.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the benefit of U.S. Provisional Application No. 60/387,857, filed on Jun. 11, 2002, entitled “Control Electronics,” which application is hereby incorporated herein by reference.
[0002] This application relates to the following patents and co-pending, commonly-assigned patent applications. Each of these documents is incorporated herein by reference.
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Provisional Applications (1)
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Number |
Date |
Country |
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60387857 |
Jun 2002 |
US |