Claims
- 1. A liquid crystal display device, for providing multiple-tone representations, said liquid crystal display device comprising:a data driver for receiving display data and providing a drive voltage corresponding with the display data; a scan driver for providing a selecting voltage; and a liquid crystal panel having a plurality of pixels arranged in a matrix, said liquid crystal panel coupled to said data driver and to said scan driver to provide the drive voltage from said data driver to a pixel of said liquid crystal panel selected in accordance with the selecting voltage, wherein the selected pixel of said liquid crystal panel displays a tone corresponding to the drive voltage, and wherein the intensities or brightnesses of all the intermediate tones between the maximum tone corresponding to the maximum drive voltage and the tone one tone higher than the minimum tone corresponding to the minimum drive voltage are at least as great as the intensity or brightness on a straight line linking the intensity or brightness of the maximum tone and the intensity or brightness of the minimum tone when the intensities or brightnesses as a function of the tones are plotted on a graph having the tones along the graph abscissa and the intensity or brightness on a logarithmic scale along the graph ordinate.
- 2. A liquid crystal display device as claimed in claim 1, further comprising a drive signal generator for producing a data clock signal for driving said data driver and a horizontal clock signal for driving said scan driver.
- 3. A liquid crystal display device as claimed in claim 1, further comprising:data driver lines coupling said data driver and said liquid crystal panel; and scan driver lines coupling said scan driver and said liquid crystal panel.
- 4. A liquid crystal display device as claimed in claim 1, wherein a line linking the intensities or brightnesses of the intermediate tones has a convex shape with respect to the straight line.
- 5. A liquid crystal display device as claimed in claim 1, wherein the display data is N-bit digital display data representing 2N tones.
- 6. A liquid crystal display device as claimed in claim 1, wherein the plurality of pixels include red (R) pixels, green (G) pixels and blue (B) pixels.
- 7. A liquid crystal display device as claimed in claim 6, wherein the display data is N-bit digital display data representing 2N tones.
- 8. A liquid crystal display device as claimed in claim 7, wherein the drive voltage for each of the R, G, and B pixels is the same when the N-bit digital display data representing the R, G, and B pixels are the same.
- 9. A liquid crystal display device as claimed in claim 1, further comprising a drive voltage generator for generating drive voltage levels corresponding to tones which the display data can represent, wherein the data driver selects one of the generated drive voltage levels in accordance with the display data and provides the selected drive voltage level.
- 10. A liquid crystal display device as claimed in claim 1, further comprising a drive signal generator for deserializing the display data and outputting the deserialized display data to the data driver.
- 11. A liquid crystal display device as claimed in claim 1, wherein the pixels display black for the maximum tone and white for the minimum tone.
- 12. A liquid crystal display device as claimed in claim 1, wherein the number of tones is eight.
- 13. A liquid crystal display device for providing multiple-tone representations, said liquid crystal display device comprising:a data driver for receiving display data, and providing a drive voltage corresponding with the display data; a scan driver for providing a selecting voltage; and a liquid crystal panel having a plurality of pixels arranged in a matrix, said liquid crystal panel coupled to said data driver and to said scan driver to provide the drive voltage from said data driver to a pixel of said liquid crystal panel selected in accordance with the selecting voltage, wherein the selected pixel of said liquid crystal panel displays a tone corresponding to the drive voltage, and wherein the intensities or brightnesses of all the intermediate tones between the maximum intensity or brightness and the intensity or brightness one intensity or brightness higher than the minimum intensity or brightness which the liquid crystal panel is capable of showing are greater than the intensity or brightness on a straight line linking the maximum intensity or brightness and the minimum intensity or brightness when the intensities or brightnesses as a function of the tones are plotted on a graph having the tones along the graph abscissa and the intensities or brightnesses on a logarithmic scale along the graph ordinate.
- 14. A liquid crystal display device as claimed in claim 13, further comprising a drive signal generator for producing a data clock signal for driving said data driver and a horizontal clock signal for driving said scan driver.
- 15. A liquid crystal display device as claimed in claim 13, further comprising:data driver lines coupling said data drive and said liquid crystal panel; and scan driver lines coupling said scan driver and said liquid crystal panel.
- 16. A liquid crystal display device as claimed in claim 13, wherein a line linking the intensities or brightness of the intermediate tones has a convex shape with respect to the straight line.
- 17. A liquid crystal display device as claimed in claim 13, wherein the display data is N-bit digital display data representing 2N tones.
- 18. A liquid crystal display device as claimed in claim 13, wherein the plurality of pixels include red (R) pixels, green (G) pixels and blue (B) pixels.
- 19. A liquid crystal display device as claimed in claim 18, wherein the display data is N-bit digital display data representing 2N tones.
- 20. A liquid crystal display device as claimed in claim 19, wherein the drive voltage for each of the R, G, and B pixels is the same when the N-bit digital display data representing the R, G, and B pixels are the same.
- 21. A liquid crystal display device as claimed in claim 13, further comprising a drive voltage generator for generating drive voltage levels corresponding to tones which the display data can represent, wherein the data driver selects one of the generated drive voltage levels in accordance with the display data and provides the selected drive voltage level.
- 22. A liquid crystal display device as claimed in claim 13, further comprising a drive signal generator for deserializing the display data and outputting the deserialized display data to the data driver.
- 23. A liquid crystal display device as claimed in claim 13, wherein the pixels display black for the maximum tone and white for the minimum tone.
- 24. A liquid crystal display device as claimed in claims 13, wherein the number of tones is eight.
- 25. A liquid crystal display device for providing multiple-tone representations, said liquid crystal display device comprising:a data driver for receiving display data and providing drive voltages corresponding with the display data; a scan driver for providing a selecting voltage; and a liquid crystal panel having a plurality of pixels arranged in a matrix, said liquid crystal panel coupled to said data driver and to said scan driver to provide the drive voltages to a line of pixels of said liquid crystal panel selected in accordance with the selecting voltage, wherein the selected line of pixels of said liquid crystal panel displays tones corresponding to the drive voltages, and wherein the intensities or brightnesses of all the intermediate tones between the maximum tone corresponding to the maximum drive voltage and the tone one tone higher than the minimum tone corresponding to the minimum drive voltage form a line above a straight line linking the intensity or brightness of the maximum tone and the intensity or brightness of the minimum tone on a graph having the tones along the graph abscissa and the intensities or brightnesses on a logarithmic scale along the graph ordinate.
- 26. A liquid crystal display device as claimed in claim 25, further comprising a generator for producing a data clock signal for driving said data driver and a clock signal for driving said scan driver.
- 27. A liquid crystal display device as claimed in claim 25, further comprising:data driver lines coupling said data drive and said liquid crystal panel; and scan driver lines coupling said scan driver and said liquid crystal panel.
- 28. A liquid crystal display device as claimed in claim 25, wherein a line linking the intensities or brightnesses of the intermediate tones has a convex shape with respect to the straight line.
- 29. A liquid crystal display device as claimed in claim 25, wherein the display data is N-bit digital display data representing 2N tones.
- 30. A liquid crystal display device as claimed in claim 25, wherein the plurality of pixels include red (R) pixels, green (G) pixels and blue (B) pixels.
- 31. A liquid crystal display device as claimed in claim 30, wherein the display data is N-bit digital display data representing 2N tones.
- 32. A liquid crystal display device as claimed in claim 31, wherein the drive voltage for each of the R, G, and B pixels is the same when the N-bit digital display data representing the R, G, and B pixels are the same.
- 33. A liquid crystal display device as claimed in claim 25, further comprising a drive voltage generator for generating drive voltage levels corresponding to tones which the display data can represent, wherein the data driver selects one of the generated drive voltage levels in accordance with the display data and provides the selected drive voltage level.
- 34. A liquid crystal display device as claimed in claim 25, further comprising a drive signal generator for deserializing the display data and outputting the deserialized display data to the data driver.
- 35. A liquid crystal display device as claimed in claim 25, wherein the pixel display black for the maximum tone and white for the minimum tone.
- 36. A liquid crystal display device as claimed in claim 25, wherein the number of tones is eight.
- 37. A liquid crystal display device for providing multiple-tone representations, said liquid crystal display device comprising:a data driver for receiving display data, and providing a drive voltage corresponding with the display data; a scan driver for providing a selecting voltage; and a liquid crystal panel having a plurality of pixels arranged in a matrix, said liquid crystal panel coupled to said data driver and to said scan driver to provide the drive voltage to a pixel of said liquid crystal panel selected in accordance with the selecting voltage, wherein the selected pixel of said liquid crystal panel displays a tone corresponding to the drive voltage, and wherein all the intensities or brightnesses between the maximum intensity or brightness and the intensity or brightness one intensity or brightness higher than the minimum intensity or brightness which the liquid crystal panel is capable of showing are greater than the intensity or brightness on a straight line linking the maximum intensity or brightness and the minimum intensity or brightness when the intensities or brightnesses as a function of the tones are plotted on a graph having the tones along the graph abscissa and the intensities or brightnesses on a logarithmic scale along the graph ordinate.
- 38. A liquid crystal display device as claimed in claim 37, further comprising a drive signal generator for producing a data clock signal for driving said data driver and a horizontal clock signal for driving said scan driver.
- 39. A liquid crystal display device as claimed in claim 37, further comprising:data driver lines coupling said data drive and said liquid crystal panel; and scan driver lines coupling said scan driver and said liquid crystal panel.
- 40. A liquid crystal display device as claimed in claim 37, wherein a line linking the intensities or brightnesses of the intermediate tones has a convex shape with respect to the straight line.
- 41. A liquid crystal display device as claimed in claim 37, wherein the display data is N-bit digital display data representing 2N tones.
- 42. A liquid crystal display device as claimed in claim 37, wherein the plurality of pixels include red (R) pixels, green (G) pixels and blue (B) pixels.
- 43. A liquid crystal display device as claimed in claim 42, wherein the display data is N-bit digital display data representing 2N tones.
- 44. A liquid crystal display device as claimed in claim 43, wherein the drive voltage for each of the R, G, and B pixels is the same when the N-bit digital display data representing the R, G, and B pixels are the same.
- 45. A liquid crystal display device as claimed in claim 37, further comprising a drive voltage generator for generating drive voltage levels corresponding to tones which the display data can represent, wherein the data driver selects one of the generated drive voltage levels in accordance with the display data and provides the selected drive voltage level.
- 46. A liquid crystal display device as claimed in claim 37, further comprising a drive signal generator for deserializing the display data and outputting the deserialized display data to the data driver.
- 47. A liquid crystal display device as claimed in claim 37, wherein the pixels display black for the maximum tone and white for the minimum tone.
- 48. A liquid crystal display device as claimed in claim 37, wherein the number of tones is eight.
- 49. A liquid crystal display device, for providing multiple-tone representations, said liquid crystal display device comprising:a data driver for receiving display data and providing a drive voltage corresponding with the display data; a scan driver for providing a selecting voltage; and a liquid crystal panel having a plurality of pixels arranged in a matrix, said liquid crystal panel coupled to said data driver and to said scan driver to provide the drive voltage from said data driver to a pixel of said liquid crystal panel selected in accordance with the selecting voltage, wherein the selected pixel of said liquid crystal panel displays a tone corresponding to the drive voltage, and wherein the intensities or brightnesses of all the intermediate tones between the maximum tone corresponding to the maximum drive voltage and the minimum tone corresponding to the minimum drive voltage are at least as great as the intensity or brightness on a straight line linking the intensity or brightness of the maximum tone and the intensity or brightness of a tone one tone higher than the minimum tone when the intensities or brightnesses as a function of the tones are plotted on a graph having the tones along the graph abscissa and the intensities or brightness on a logarithmic scale along the graph ordinate.
- 50. A liquid crystal display device as claimed in claim 49, further comprising a drive signal generator for producing a data clock signal for driving said data driver and a horizontal clock signal for driving said scan driver.
- 51. A liquid crystal display device as claimed in claim 49, further comprising:data driver lines coupling said data driver and said liquid crystal panel; and scan driver lines coupling said scan driver and said liquid crystal panel.
- 52. A liquid crystal display device as claimed in claim 49, wherein a line linking the intensities or brightnesses of the intermediate tones has a convex shape with respect to the straight line.
- 53. A liquid crystal display device as claimed in claim 49, wherein the display data is N-bit digital display data representing 2N tones.
- 54. A liquid crystal display device as claimed in claim 49, wherein the plurality of pixels include red (R) pixels, green (G) pixels and blue (B) pixels.
- 55. A liquid crystal display device as claimed in claim 54, wherein the display data is N-bit digital display data representing 2N tones.
- 56. A liquid crystal display device as claimed in claim 55, wherein the drive voltage for each of the R, G, and B pixels is the same when the N-bit digital display data representing the R, G, and B pixels are the same.
- 57. A liquid crystal display device as claimed in claim 49, further comprising a drive voltage generator for generating drive voltage levels corresponding to tones which the display data can represent, wherein the data driver selects one of the generated drive voltage levels in accordance with the display data and provides the selected drive voltage level.
- 58. A liquid crystal display device as claimed in claim 49, further comprising a drive signal generator for deserializing the display data and outputting the deserialized display data to the data driver.
- 59. A liquid crystal display device as claimed in claim 49, wherein the pixels display black for the maximum tone and white for the minimum tone.
- 60. A liquid crystal display device as claimed in claim 49, wherein the number of tones is eight.
- 61. A liquid crystal display device for providing multiple-tone representations, said liquid crystal display device comprising:a data driver for receiving display data, and providing a drive voltage corresponding with the display data; a scan driver for providing a selecting voltage; and a liquid crystal panel having a plurality of pixels arranged in a matrix, said liquid crystal panel coupled to said data driver and to said scan driver to provide the drive voltage from said data driver to a pixel of said liquid crystal panel selected in accordance with the selecting voltage, wherein the selected pixel of said liquid crystal panel displays a tone corresponding to the drive voltage, and wherein the intensities or brightnesses of all the intermediate tones between the maximum intensity or brightness and the minimum intensity or brightness which the liquid crystal panel is capable of showing are greater than the intensity or brightness on a straight line linking the maximum intensity or brightness and the intensity or brightness one intensity or brightness higher than the minimum intensity or brightness when the intensities or brightnesses as a function of the tones are plotted on a graph having the tones along the graph abscissa and the intensities or brightnesses on a logarithmic scale along the graph ordinate.
- 62. A liquid crystal display device as claimed in claim 61, further comprising a drive signal generator for producing a data clock signal for driving said data driver and a horizontal clock signal for driving said scan driver.
- 63. A liquid crystal display device as claimed in claim 61, further comprising:data driver lines coupling said data drive and said liquid crystal panel; and scan driver lines coupling said scan driver and said liquid crystal panel.
- 64. A liquid crystal display device as claimed in claim 61, wherein a line linking the intensities or brightnesses of the intermediate tones has a convex shape with respect to the straight line.
- 65. A liquid crystal display device as claimed in claim 61, wherein the display data is N-bit digital display data representing 2N tones.
- 66. A liquid crystal display device as claimed in claim 61, wherein the plurality of pixels include red (R) pixels, green (G) pixels and blue (B) pixels.
- 67. A liquid crystal display device as claimed in claim 66, wherein the display data is N-bit digital display data representing 2N tones.
- 68. A liquid crystal display device as claimed in claim 67, wherein the drive voltage for each of the R, G, and B pixels is the same when the N-bit digital display data representing the R, G, and B pixels are the same.
- 69. A liquid crystal display device as claimed in claim 61, further comprising a drive voltage generator for generating drive voltage levels corresponding to tones which the display data can represent, wherein the data driver selects one of the generated drive voltage levels in accordance with the display data and provides the selected drive voltage level.
- 70. A liquid crystal display device as claimed in claim 61, further comprising a drive signal generator for deserializing the display data and outputting the deserialized display data to the data driver.
- 71. A liquid crystal display device as claimed in claim 61, wherein the pixels display black for the maximum tone and white for the minimum tone.
- 72. A liquid crystal display device as claimed in claim 61, wherein the number of tones is eight.
- 73. A liquid crystal display device for providing multiple-tone representations, said liquid crystal display device comprising:a data driver for receiving display data and providing drive voltages corresponding with the display data; a scan driver for providing a selecting voltage; and a liquid crystal panel having a plurality of pixels arranged in a matrix, said liquid crystal panel coupled to said data driver and to said scan driver to provide the drive voltages to a line of pixels of said liquid crystal panel selected in accordance with the selecting voltage, wherein the selected line of pixels of said liquid crystal panel displays tones corresponding to the drive voltages, and wherein the intensities or brightness of all the intermediate tones between the maximum tone corresponding to the maximum drive voltage and the minimum tone corresponding to the minimum drive voltage form a line above a straight line linking the intensity or brightness of the maximum tone and the intensity or brightness of a tone one tone higher than the minimum tone on a graph having the tones along the graph abscissa and the intensities or brightnesses on a logarithmic scale along the graph ordinate.
- 74. A liquid crystal display device as claimed in claim 73, further comprising a drive signal generator for producing a data clock signal for driving said data driver and a horizontal clock signal for driving said scan driver.
- 75. A liquid crystal display device as claimed in claim 73, further comprising:data driver lines coupling said data drive and said liquid crystal panel; and scan driver lines coupling said scan driver and said liquid crystal panel.
- 76. A liquid crystal display device as claimed in claim 73, wherein a line linking the intensities or brightnesses of the intermediate tones has a convex shape with respect to the straight line.
- 77. A liquid crystal display device as claimed in claim 73, wherein the display data is N-bit digital display data representing 2N tones.
- 78. A liquid crystal display device as claimed in claim 73, wherein the plurality of pixels include red (R) pixels, green (G) pixels and blue (B) pixels.
- 79. A liquid crystal display device as claimed in claim 78, wherein the display data is N-bit digital display data representing 2N tones.
- 80. A liquid crystal display device as claimed in claim 79, wherein the drive voltage for each of the R, G, and B pixels is the same when the N-bit digital display data representing the R, G, and B pixels are the same.
- 81. A liquid crystal display device as claimed in claim 73, further comprising a drive voltage generator for generating drive voltage levels corresponding to tones which the display data can represent, wherein the data driver selects one of the generated drive voltage levels in accordance with the display data and provides the selected drive voltage level.
- 82. A liquid crystal display device as claimed in claim 73, further comprising a drive signal generator for deserializing the display data and outputting the deserialized display data to the data driver.
- 83. A liquid crystal display device as claimed in claim 73, wherein the pixels display black for the maximum tone and white for the minimum tone.
- 84. A liquid crystal display device as claimed in claim 73, wherein the number of tones is eight.
- 85. A liquid crystal display device for providing multiple-tone representations, said liquid crystal display device comprising:a data driver for receiving display data, and providing a drive voltage corresponding with the display data; a scan driver for providing a selecting voltage; and a liquid crystal panel having a plurality of pixels arranged in a matrix, said liquid crystal panel coupled to said data driver and to said scan driver to provide the drive voltage to a pixel of said liquid crystal panel selected in accordance with the selecting voltage, wherein the selected pixel of said liquid crystal panel displays a tone corresponding to the drive voltage, and wherein all the intensities or brightnesses between the maximum intensity or brightness and the minimum intensity or brightness which the liquid crystal panel is capable of showing are greater than the intensities or brightnesses on a straight line linking the maximum intensity or brightness and the intensity or brightness one intensity or brightness higher than the minimum intensity or brightness when the intensities or brightnesses as a function of the tones are plotted on a graph having the tones along the graph abscissa and the intensities or brightnesses on a logarithmic scale along the graph ordinate.
- 86. A liquid crystal display device as claimed in claim 85, further comprising a drive signal generator for producing a data clock signal for driving said data driver and a horizontal clock signal for driving said scan driver.
- 87. A liquid crystal display device as claimed in claim 85, further comprising:data driver lines coupling said data drive and said liquid crystal panel; and scan driver lines coupling said scan driver and said liquid crystal panel.
- 88. A liquid crystal display device as claimed in claim 85, wherein a line linking the intensities or brightnesses of the intermediate tones has a convex shape with respect to the straight line.
- 89. A liquid crystal display device as claimed in claim 85, wherein the display data is N-bit digital display data representing 2N tones.
- 90. A liquid crystal display device as claimed in claim 85, wherein the plurality of pixels included (R) pixels, green (G) pixels and blue (B) pixels.
- 91. A liquid crystal display device as claimed in claim 90, wherein the display data is N-bit digital display data representing 2N tones.
- 92. A liquid crystal display device as claimed in claim 91, wherein the drive voltage for each of the R, G, and B pixels is the same when the N-bit digital display data representing the R, G, and B pixels are the same.
- 93. A liquid crystal display device as claimed in claim 85, further comprising a drive voltage generator for generating drive voltage levels corresponding to tones which the display data can represent, wherein the data driver selects one of the generated drive voltage levels in accordance with the display data and provides the selected drive voltage level.
- 94. A liquid crystal display device as claimed in claim 85, further comprising a drive signal generator for deserializing the display data and outputting the deserialized display data to the data driver.
- 95. A liquid crystal display device as claimed in claim 85, wherein the pixels display black for the maximum tone and white for the minimum tone.
- 96. A liquid crystal display device as claimed in claim 85, wherein the number of tones is eight.
Priority Claims (1)
Number |
Date |
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Kind |
4-39203 |
Feb 1992 |
JP |
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Parent Case Info
This application is a continuation of application Ser. No. 09/773,728 filed Feb. 2, 2001 now U.S. Pat. No. 6,320,564, which is a continuation of application Ser. No. 09/459,341 filed Dec. 13, 1999, now U.S. Pat. No. 6,191,766, which is a continuation of application Ser. No. 09/080,234 filed May 18, 1998, now U.S. Pat. No. 6,100,864, which is a continuation of application Ser. No. 08/813,387 filed Mar. 7, 1997, now U.S. Pat. No. 5,786,798, which is a continuation application of Ser. No. 08/486,291 filed Jun. 7, 1995, now U.S. Pat. No. 5,610,626, which in turn was a division of application Ser. No. 08/018,494 filed Feb. 17, 1993, now U.S. Pat. No. 5,495,287.
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Continuations (5)
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09/773728 |
Feb 2001 |
US |
Child |
09/972924 |
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Parent |
09/459341 |
Dec 1999 |
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Child |
09/773728 |
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09/080234 |
May 1998 |
US |
Child |
09/459341 |
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Parent |
08/813387 |
Mar 1997 |
US |
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09/080234 |
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Parent |
08/486291 |
Jun 1995 |
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08/813387 |
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US |