Claims
- 1. A liquid crystal display, comprising:
- a liquid crystal matrix panel having a matrix of liquid crystal pixels and X and Y electrodes for selectively applying driving voltages to said pixels to thereby display information;
- an X electrode driving circuit applying X driving voltages to said X electrodes;
- a Y electrode driving circuit applying Y driving voltages to said Y electrodes;
- a compensating voltage superimposing circuit applying voltage signals to said X electrodes, wherein each of said voltage signals is a high-frequency compensating voltage which continuously varies the waveform of the liquid crystal driving voltages to decrease variation in the effective values of said driving voltages in the entire area of a region including pixels having the same brightness data, wherein a different compensating voltage signal is applied to each of the X electrodes.
- 2. A liquid crystal display, comprising:
- a liquid crystal matrix panel having a matrix of liquid crystal pixels and X and Y electrodes for selectively applying driving voltages to said pixels to thereby display information;
- an X electrode driving circuit applying X driving voltages to said X electrodes;
- a Y electrode driving circuit applying Y driving voltages to said Y electrodes;
- a power supply circuit supplying X and Y reference voltages to said X and Y electrode driving circuits;
- a compensating voltage superimposing circuit applying voltage signals to said X reference voltages, wherein each of said voltage signals is a high-frequency compensating voltage which continuously varies the waveform of the liquid crystal driving voltages to decrease variation in the effective values of said driving voltages in the entire area of a region including pixels having the same brightness data, wherein a different compensating voltage signal is applied to each of the X electrodes.
- 3. A liquid crystal display, comprising:
- a liquid crystal matrix panel having a matrix of liquid crystal pixels and X and Y electrodes for selectively applying driving voltages to said pixels to thereby display information;
- an X electrode driving circuit applying X driving voltages to said X electrodes;
- a Y electrode driving circuit applying Y driving voltages to said Y electrodes;
- a power supply circuit supplying X and Y reference voltages to said X and Y electrode driving circuits;
- a compensating voltage superimposing circuit superimposing voltage signals each to said X driving voltages in said X electrode driving circuit, wherein each of said voltage signals is a high-frequency compensating voltage which continuously varies the waveform of the liquid crystal driving voltages to decrease variation in the effective values of said driving voltages in the entire area of a region including pixels having the same brightness data, wherein a different compensating voltage signal is applied to each of the X electrodes.
- 4. A liquid crystal display, comprising:
- a liquid crystal matrix panel having a matrix of liquid crystal pixels and X and Y electrodes for selectively applying driving voltages to said pixels to thereby display information;
- an X electrode driving circuit applying X driving voltages to terminals at one end of said X electrodes;
- a Y electrode driving circuit applying Y driving voltages to terminals at one end of said Y electrodes;
- a compensating voltage superimposing circuit applying voltage signals to terminals on the other end of said X electrodes, wherein each of said voltage signals is a high-frequency compensating voltage which continuously varies the waveform of the liquid crystal driving voltages to decrease variation in the effective values of said driving voltages in the entire area of a region including pixels having the same brightness data, wherein a different compensating voltage signal is applied to each of said terminals on the other end of said X electrodes.
- 5. A driving method for driving a liquid crystal display of the type having a matrix of liquid crystal pixels which are selectively supplied with X and Y driving voltages through X and Y electrodes, thereby displaying information, said method comprising:
- superimposing voltage signals to said X electrodes, wherein each of said voltage signals is a high-frequency compensating voltage which continuously varies the waveform of the liquid crystal driving voltages to decrease variation in the effective values of said driving voltages in the entire area of a region including pixels having the same brightness data, wherein a different compensating voltage signal is applied to each of the X electrodes.
- 6. A driving method for driving a liquid crystal display of the type having a matrix of liquid crystal pixels which are selectively supplied with X and Y driving voltages generated based on X and Y reference voltages from a power supply circuit and supplied by X and Y electrode driving circuits, thereby displaying information, said method comprising:
- superimposing voltage signals to said X reference voltages, wherein each of said voltage signals is a high-frequency compensating voltage which continuously varies the waveform of the liquid crystal driving voltages to decrease variation in the effective values of said driving voltages in the entire area of a region including pixels having the same brightness data, wherein a different compensating voltage signal is applied to each of the X electrodes.
- 7. A driving method for driving a liquid crystal display of the type having a matrix of liquid crystal pixels which are selectively supplied with X and Y driving voltages generated based on X and Y reference voltages from a power supply circuit and supplied by X and Y electrode driving circuits, thereby displaying information, said method comprising:
- superimposing voltage signals to said X driving voltages, wherein each of said voltage signals is a high-frequency compensating voltage which continuously varies the waveform of the liquid crystal driving voltages to decrease variation in the effective values of said driving voltages in the entire area of a region including pixels having the same brightness data, wherein a different compensating voltage signal is applied to each of the X electrodes.
- 8. A liquid crystal display, comprising:
- a liquid crystal matrix panel having a matrix of liquid crystal pixels and X and Y electrodes for selectively applying driving voltages to said pixels to thereby display information;
- an X electrode driving circuit applying X driving voltages to said X electrodes;
- a Y electrode driving circuit applying Y driving voltages to said Y electrodes;
- a compensating voltage superimposing circuit applying voltage signals to said Y electrodes, wherein each of said voltage signals is a high-frequency compensating voltage which continuously varies the waveform of the liquid crystal driving voltages to decrease variation in the effective values of said driving voltages in the entire area of a region including pixels having the same brightness data, wherein a different compensating voltage signal is applied to each of the Y electrodes.
- 9. A liquid crystal display, comprising:
- a liquid crystal matrix panel having a matrix of liquid crystal pixels and X and Y electrodes for selectively applying driving voltages to said pixels to thereby display information;
- an X electrode driving circuit applying X driving voltages to said X electrodes;
- a Y electrode driving circuit applying Y driving voltages to said Y electrodes;
- a power supply circuit supplying X and Y reference voltages to said X and Y electrode driving circuits;
- a compensating voltage superimposing circuit applying voltage signals to said Y reference voltages, wherein each of said voltage signals is a high-frequency compensating voltage which continuously varies the waveform of the liquid crystal driving voltages to decrease variation in the effective values of said driving voltages in the entire area of a region including pixels having the same brightness data, wherein a different compensating voltage signal is applied to each of the Y electrodes.
- 10. A liquid crystal display, comprising:
- a liquid crystal matrix panel having a matrix of liquid crystal pixels and X and Y electrodes for selectively applying driving voltages to said pixels to thereby display information;
- an X electrode driving circuit applying X driving voltages to said X electrodes;
- a Y electrode driving circuit applying Y driving voltages to said Y electrodes;
- a power supply circuit supplying X and Y reference voltages to said X and Y electrode driving circuits;
- a compensating voltage superimposing circuit superimposing voltage signals each to said Y driving voltages in said Y electrode driving circuit, wherein each of said voltage signals is a high-frequency compensating voltage which continuously varies the waveform of the liquid crystal driving voltages to decrease variation in the effective values of said driving voltages in the entire area of a region including pixels having the same brightness data, wherein a different compensating voltage signal is applied to each of the Y electrodes.
- 11. A liquid crystal display, comprising:
- a liquid crystal matrix panel having a matrix of liquid crystal pixels and X and Y electrodes for selectively applying driving voltages to said pixels to thereby display information;
- an X electrode driving circuit applying X driving voltages to terminals at one end of said X electrodes;
- a Y electrode driving circuit applying Y driving voltages to terminals at one end of said Y electrodes;
- a compensating voltage superimposing circuit applying voltage signals to terminals on the other end of said Y electrodes, wherein each of said voltage signals is a high-frequency compensating voltage which continuously varies the waveform of the liquid crystal driving voltages to decrease variation in the effective values of said driving voltages in the entire area of a region including pixels having the same brightness data, wherein a different compensating voltage signal is applied to each of said terminals on the other end of said Y electrodes.
- 12. A driving method for driving a liquid crystal display of the type having a matrix of liquid crystal pixels which are selectively supplied with X and Y driving voltages through X and Y electrodes thereby displaying information, said method comprising:
- superimposing voltage signals to said Y electrodes, wherein each of said voltage signals is a high-frequency compensating voltage which continuously varies the waveform of the liquid crystal driving voltages to decrease variation in the effective values of said driving voltages in the entire area of a region including pixels having the same brightness data, wherein a different compensating voltage signal is applied to each of the Y electrodes.
- 13. A driving method for driving a liquid crystal display of the type having a matrix of liquid crystal pixels which are selectively supplied with X and Y driving voltages generated based on X and Y reference voltages from a power supply circuit and supplied by X and Y electrode driving circuits, thereby displaying information, said method comprising:
- superimposing voltage signals to at least one of said Y reference voltages wherein each of said voltage signals is a high-frequency compensating voltage which continuously varies the waveform of the liquid crystal driving voltages to decrease variation in the effective values of said driving voltages in the entire area of the region including pixels having the same brightness data, wherein a different compensating voltage signal is applied to each of the Y electrodes.
- 14. A driving method for driving a liquid crystal display of the type having a matrix of liquid crystal pixels which are selectively supplied with X and Y driving voltages generated based on X and Y reference voltages from a power supply circuit and supplied by X and Y electrode driving circuits, thereby displaying information, said method comprising:
- superimposing voltage signals to said Y driving voltages, wherein each of said voltage signals is a high-frequency compensating voltage which continuously varies the waveform of the liquid crystal driving voltages to decrease variation in the effective values of said driving voltages in the entire area of a region including pixels having the same brightness data, wherein a different compensating voltage signal is applied to each of the Y electrodes.
Priority Claims (1)
Number |
Date |
Country |
Kind |
1-123894 |
May 1989 |
JPX |
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Parent Case Info
This application is a continuation-in-part of application Ser. No. 07/922,009 filed on Aug. 4, 1992, now abandoned, which is a continuation of application Ser. No. 07/523,378, filed on May 15, 1990 now abandoned.
US Referenced Citations (13)
Foreign Referenced Citations (9)
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Continuations (1)
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Number |
Date |
Country |
Parent |
523378 |
May 1990 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
922009 |
Aug 1992 |
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