US Patent No: 7,432,905
Number of patents in Portfolio can not be more than 2000
Driver circuit for display device
Stats
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Oct 7, 2008
Issued date -
Apr 5, 2004
filing date -
10/818,390
serial no -
In Force
status
Importance
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Abstract
A driver circuit for use in an active matrix display having switching devices at pixels. The driver circuit uses no shift registers. Random access to signal lines or scanning lines can be obtained. The display quality is improved. The production yield is improved. Also, lower electric power consumption and higher-speed operation can be accomplished. Data about gray levels assumes the form of digital values and is supplied to the driver circuit. The signal lines or scanning lines are selected by an address decoder circuit.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,765,720 Method and apparatus for driving ferroelectric liquid crystal, optical modulation device to achieve gradation | 48 | 1987 | |
| 4,923,285 Drive apparatus having a temperature detector | 52 | 1988 | |
| 5,353,041 Driving device and display system | 23 | 1991 | |
| 5,264,839 Display apparatus | 21 | 1993 | |
| 5,592,190 Liquid crystal display apparatus and drive method | 24 | 1994 | |
| 5,898,417 Display apparatus and driving circuit | 5 | 1995 | |
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| 4,926,168 Liquid crystal display device having a randomly determined polarity reversal frequency | 24 | 1988 | |
| 5,414,443 Drive device for driving a matrix-type LCD apparatus | 144 | 1992 | |
| 5,583,535 Column electrode drive circuit of liquid crystal display device capable of simultaneously applying display voltages to column electrodes as well as sequentially applying scanning voltages to column electrodes | 14 | 1994 | |
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| 6,344,843 Drive circuit for display device | 44 | 1995 | |
| 6,177,920 Active matrix display with synchronous up/down counter and address decoder used to change the forward or backward direction of selecting the signal or scanning lines | 12 | 1995 | |
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| 4,802,106 Sweep marker display apparatus for polar coordinate display | 8 | 1986 | |
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| 5,196,738 Data driver circuit of liquid crystal display for achieving digital gray-scale | 89 | 1991 | |
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| 5,130,704 Logic operation circuit | 12 | 1991 | |
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| 5,363,118 Driver integrated circuits for active matrix type liquid crystal displays and driving method thereof | 56 | 1992 | |
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| 5,583,532 Active matrix liquid crystal display for reproducing images on screen with floating image signal | 13 | 1994 | |
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| 5,038,139 Half tone display driving circuit for crystal matrix panel and half tone display method thereof | 15 | 1989 | |
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| 5,337,068 Field-sequential display system utilizing a backlit LCD pixel array and method for forming an image | 108 | 1993 | |
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| 5,784,044 Image display method and circuit | 2 | 1995 | |
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| 5,457,661 Semiconductor memory device having a delay circuit for controlling access time | 17 | 1994 | |
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| 5,642,129 Color sequential display panels | 168 | 1994 | |
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| 5,218,352 Liquid crystal display circuit | 14 | 1990 | |
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| 6,151,005 Liquid-crystal display system having a driver circuit capable of multi-color display | 26 | 1993 | |
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| 5,699,085 Display device | 9 | 1992 | |
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| 5,051,739 Driving circuit for an image display apparatus with improved yield and performance | 43 | 1989 | |
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| 5,250,931 Active matrix panel having display and driver TFT's on the same substrate | 252 | 1989 | |
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| 5,818,412 Horizontal driver circuit with fixed pattern eliminating function | 24 | 1994 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Apr 7, 2016 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 7, 2020 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |