Two primary color display

• US 20080111834A1
• Filed: 11/09/2006
• Published: 05/15/2008
• Est. Priority Date: 11/09/2006
• Status: Abandoned Application

• Current Assignee: Snaptrack Incorporated (Qualcomm, Inc.)
• Original Assignee: Snaptrack Incorporated (Qualcomm, Inc.)
• Inventors: Mignard, Marc M.
• Application Number:
  US11/595,621
• Publication Number:
  US 20080111834A1
• Time in Patent Office: Days
• US Class Current: 345/690
• CPC Class Codes: G02B 26/001 based on interference in an adjustable optical cavity interference filters G02B5/28; devices or arrangements using multiple reflections in spectrometry or monochromators G01J3/26
• CPC Class Codes: G09G 2300/0452 Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
• CPC Class Codes: G09G 2310/0235 Field-sequential colour display
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607
• CPC Class Codes: G09G 3/2014 by modulation of the duration of a single pulse during which the logic level remains constant
• CPC Class Codes: G09G 3/2074 using sub-pixels
• CPC Class Codes: G09G 3/3466 based on interferometric effect

Abstract

A color display comprising a plurality of pixels is disclosed, wherein each pixel comprises two or fewer subpixels. In one embodiment, a color display comprises a fixed color display element configured to provide light of a first color, and a variable color display element configured to provide light of a variable second color, wherein the second color is variably controlled such that the variable color and fixed color display elements collectively and operatively display light of a perceivable color.

Claims

1. A color display, comprising:

a fixed color display element configured to provide light of a first color; and

a variable color display element configured to provide light of a variable second color;

wherein the second color is variably controlled such that the variable color and fixed color display elements collectively and operatively display light of a perceivable color.

2. The display of claim 1, wherein each display element forms a subpixel.

3. The display of claim 1, wherein each display element forms an interferometric modulator.

4. The display of claim 2, wherein the second color is variably controlled such that the perceivable color falls on a line connecting the first and second color on a two-dimensional CIE chromaticity diagram.

5. The display of claim 3, wherein the fixed color is red.

6. The display of claim 5, wherein the fixed color display element further comprises an additional filter, the filter being configured to adjust the saturation of the red.

7. The display of claim 2, wherein each display element is further divided into a plurality of portions, each portion being controlled independently to either provide light or no light.

8. The display of claim 7, wherein a first and second number of portions are controlled to provide light within the variable and fixed color display elements respectively such that the variable color and fixed color display elements collectively and operatively display light of the perceivable color.

9. The display of claim 2, wherein the variable and fixed color display elements are controlled to provide light for a first period and a second period respectively such that the variable color and fixed color display elements collectively and operatively display light of the perceivable color.

10. The display of claim 1, further comprising:

a processor that is configured to communicate with said display elements, said processor being configured to process image data; and

a memory device that is configured to communicate with said processor.

11. The display of claim 10, further comprising a driver circuit configured to send at least one signal to the display elements.

12. The display of claim 11, further comprising a controller configured to send at least a portion of the image data to the driver circuit.

13. The display of claim 10, further comprising an image source module configured to send said image data to said processor.

14. The display of claim 13, wherein the image source module comprises at least one of a receiver, transceiver, and transmitter.

15. The display of claim 10, further comprising an input device configured to receive input data and to communicate said input data to said processor.

16. The display of claim 1, wherein the second color is variably controlled such that the variable color and fixed color display elements collectively and operatively display light of a perceivable color and brightness.

17. A color display, comprising:

a first variable color display element configured to provide light of a variable first color; and

a second variable color display element configured to provide light of a variable second color;

wherein the first and second colors are variably controlled such that the first and second variable color display elements collectively and operatively display light of a perceivable color.

18. The display of claim 17, wherein each display element forms a subpixel.

19. The display of claim 17, wherein each display element forms an interferometric modulator.

20. The display of claim 17, wherein the first color and the second color are variably controlled such that the perceivable color falls on a line connecting the first and second color on a two-dimensional CIE chromaticity diagram.

21. The display of claim 20, wherein the first color and the second color are variably controlled such that the perceivable color is at a substantially same distance from the first color as from the second color on a two-dimensional CIE chromaticity diagram.

22. The display of claim 18, wherein each display element is further divided into a plurality of portions, each portion being controlled independently to either provide light or no light.

23. The display of claim 22, wherein a first and second number of portions are controlled to provide light within the first and second variable color display elements respectively such that the first and second variable color display elements collectively and operatively display light of the perceivable color.

24. The display of claim 18, wherein the first and second variable color display elements are controlled to provide light for a first period and a second period respectively such that the first and second variable color display elements collectively and operatively display light of the perceivable color.

25. The display of claim 17, wherein the first and second colors are variably controlled such that the first and second variable color display elements collectively and operatively display light of a perceivable color and brightness.

26. A color display, comprising:

a variable color display element configured to provide light of a variable color,

wherein the variable color display element is controlled to provide light of a first color for a first period and then light of a second color for a second period such that the display element provides light of a perceivable color.

27. The display of claim 26, wherein the variable color display element forms a subpixel.

28. The display of claim 26, wherein the variable color display element forms an interferometric modulator.

29. The display of claim 26, wherein the first color and the second color are variably controlled such that the perceivable color falls on a line connecting the first and second color on a two-dimensional CIE chromaticity diagram.

30. The display of claim 29, wherein the first color and the second color are variably controlled such that the perceivable color is at a substantially same distance from the first color as from the second color on a two-dimensional CIE chromaticity diagram.

31. The display of claim 27, wherein the display element is further divided into a plurality of portions, each portion being controlled independently to either provide light or no light.

32. The display of claim 31, wherein a first and second number of portions of the display element are controlled to provide light for the first and second periods respectively such that the display element provides light of the perceivable color.

33. The display of claim 26, wherein the variable color display element is controlled to provide light of a first color for a first period and then light of a second color for a second period such that the display element provides light of a perceivable color and brightness.

34. The display of claim 26, wherein the variable color display element is controlled to provide light of a first color for a first period and then light of a second color for a second period and then to be black for a third period such that the display element provides light of a perceivable color and brightness.

35. A color display, comprising:

a plurality of pixels, each pixel comprising two or fewer subpixels, wherein each pixel is capable of displaying a group of colors comprising a substantially red color, a substantially green color, and a substantially blue color.

36. The display of claim 35, wherein each pixel comprises at least one subpixel configured to provide light of a variable color.

37. The display of claim 35, wherein each subpixel forms an interferometric modulator.

38. A method of displaying a perceivable color, the method comprising:

providing a display comprising a fixed color display element configured to provide light of a first color and a variable color display element configured to provide light of a variable color; and

controlling the variable color display element to provide light of a selected second color such that the first color and second color collectively provide light of the perceivable color.

39. The method of claim 38, further comprising:

controlling the fixed color display element to provide light for a first period; and

controlling the variable color display element to provide light for a second period.

40. The method of claim 38, wherein each display element is further divided into a plurality of portions, each portion being controlled independently to either provide light or no light, further comprising:

controlling a first number of portions within the fixed color display element to provide light; and

controlling a second number of portions within the variable color display element to provide light.

41. The method of claim 38, wherein the second color is selected such that the perceivable color falls on a line connecting the first and second color on a two-dimensional CIE chromaticity diagram.

42. The method of claim 38, wherein the first color and second color collectively provide light of the perceivable color and brightness.

43. A method of displaying a perceivable color, the method comprising:

providing a display comprising a first and second variable color display element, each element being configured to provide light of a variable color; and

controlling the first and second variable color display element to provide light of a selected first and second color respectively such that the first color and second color collectively provide light of the perceivable color.

44. The method of claim 43, further comprising:

controlling the first element to provide light for a first period; and

controlling the second element to provide light for a second period.

45. The method of claim 43, wherein each display element is further divided into a plurality of portions, each portion being controlled independently to either provide light or no light, further comprising:

controlling a first number of portions within the first element to provide light; and

controlling a second number of portions within the second element to provide light.

46. The method of claim 43, wherein the first and second color are selected such that the perceivable color falls on a line connecting the first and second color on a two-dimensional CIE chromaticity diagram.

47. The method of claim 43, wherein the first color and second color collectively provide light of the perceivable color and brightness.

48. A method of displaying a perceivable color, the method comprising:

providing a display comprising a variable color display element configured to provide light of a variable color; and

controlling the variable color display element to provide light of a selected first color for a first period and provide light of a selected second color for a second period such that the display element provides light of a perceivable color.

49. The method of claim 48, wherein the display element is further divided into a plurality of portions, each portion being controlled independently to either provide light or no light, further comprising controlling the display element such that a first and a second number or portions within the display element provide light during the first and second period respectively.

50. The method of claim 48, wherein the perceivable color falls on a line connecting the first and second color on a two-dimensional CIE chromaticity diagram.

51. The method of claim 48, wherein the display element provides light of a perceivable color and brightness.

52. A color display, comprising:

means for providing light of a first color; and

means for providing light of a variable second color;

wherein the second color is variably controlled such that the means for providing light of a first color and the means for providing light of a second color collectively and operatively display light of a perceivable color.

53. The display of claim 52, wherein the means for providing light of a first color comprises an interferometric modulator configured to display a fixed color.

54. The display of claim 52, wherein the means for providing light of a variable second color comprises an interferometric modulator configured to display a variable color.

55. The display of claim 52, wherein the means for providing light of a first color and the means for providing light of a second color collectively and operatively display light of a perceivable color and brightness.

56. A color display, comprising:

means for providing light of a variable first color, and

means for providing light of a variable second color,

wherein the first and second colors are variably controlled such that the means for providing light of a variable first color and the means for providing light of a variable second color collectively and operatively display light of a perceivable color.

57. The display of claim 56, wherein each means for providing light of a variable color comprises an interferometric modulator configured to display a variable color.

58. The display of claim 56, wherein the first and second colors are variably controlled such that the means for providing light of a variable first color and the means for providing light of a variable second color collectively and operatively display light of a perceivable color and brightness.

59. A color display, comprising:

means for providing light of a variable color; and

means for processing image data, the means being configured to communicate with the means for providing;

wherein the means for providing is controlled to provide light of a first color for a first period and then light of a second color for a second period such that the means for providing provides light of a perceivable color.

60. The display of claim 59, wherein the means for providing light of a variable color comprises an interferometric modulator configured to display a variable color.

61. The display of claim 59, wherein the means for providing is controlled to provide light of a first color for a first period and then light of a second color for a second period such that the means for providing provides light of a perceivable color and brightness.