Computer graphics processing and selective visual display system – Display driving control circuitry
Reexamination Certificate
2006-08-29
2006-08-29
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
C345S098000
Reexamination Certificate
active
07098902
ABSTRACT:
A display driver includes a correction parameter register which stores correction parameters for correcting contrast adjustment values; a computation circuit which adds a correction value specified by a correction parameter to a contrast adjustment value instructed by an MPU, to calculate a corrected contrast adjustment value; and a drive circuit which drives a display panel with a drive voltage that is obtained based on the corrected contrast adjustment value. The display driver uses a correction value for a contrast reference value that is obtained by measuring a display characteristic of the display panel. At power-on, at a system reset, or at refresh timing, a correction parameter that has been read from the EEPROM is written to the correction parameter register, to initialize or refresh the register.
REFERENCES:
patent: 5532718 (1996-07-01), Ishimaru
patent: 5627457 (1997-05-01), Ishiyama et al.
patent: 6008791 (1999-12-01), Arai et al.
patent: 6181313 (2001-01-01), Yokota et al.
patent: 6252606 (2001-06-01), Vaswani et al.
patent: 6271825 (2001-08-01), Greene et al.
patent: 6275209 (2001-08-01), Yamamoto
patent: 6414664 (2002-07-01), Conover et al.
patent: 6593934 (2003-07-01), Liaw et al.
patent: 1 014 333 (2000-06-01), None
patent: 61-256382 (1986-11-01), None
patent: 04-116621 (1992-04-01), None
patent: 04-194818 (1992-07-01), None
patent: A 9-160001 (1997-06-01), None
patent: A 2001-092436 (2001-04-01), None
patent: A 2003-531407 (2003-10-01), None
patent: WO 01/80211 (2001-10-01), None
Hjerpe Richard
Nguyen Kimnhung
Oliff & Berridg,e PLC
Seiko Epson Corporation
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