Computer graphics processing and selective visual display system – Display driving control circuitry – Physically integral with display elements
Reexamination Certificate
2006-01-03
2006-01-03
Lefkowitz, Sumati (Department: 2675)
Computer graphics processing and selective visual display system
Display driving control circuitry
Physically integral with display elements
C345S204000, C345S055000
Reexamination Certificate
active
06982706
ABSTRACT:
A source driver4A arranged on a liquid crystal panel includes therein in-chip reference voltage wires17extending from one end to the other end of an LSI chip. The source driver4A includes therein: branch reference voltage wires17abranching off from in-chip reference voltage wires17; reference voltage production buffers31; a control circuit30for controlling the reference voltage production buffers31; a reference voltage production resistor section32for subdividing the reference voltage into values of n steps; voltage level selection circuits34each for selecting one of the subdivided voltages; and output buffers35. Since the reference voltages are supplied to each source driver4via wiring for connecting the in-chip reference voltage wires17in series with one another, the wiring structure for supplying the reference voltages can be simplified.
REFERENCES:
patent: 5250937 (1993-10-01), Kikuo et al.
patent: 5414443 (1995-05-01), Kanatani et al.
patent: 5670994 (1997-09-01), Kawaguchi et al.
patent: 5729316 (1998-03-01), Yamamura et al.
patent: 5748175 (1998-05-01), Shimada et al.
patent: 5751279 (1998-05-01), Okumura
patent: 5754150 (1998-05-01), Matsui
patent: 5801673 (1998-09-01), Shimada et al.
patent: 6002384 (1999-12-01), Tamai et al.
patent: 6211849 (2001-04-01), Sasaki et al.
patent: 6452590 (2002-09-01), Awamoto et al.
patent: 6600470 (2003-07-01), Tsuda
patent: 2001/0013850 (2001-08-01), Sakaguchi et al.
patent: 2001/0043176 (2001-11-01), Park
patent: 2002/0070928 (2002-06-01), Awamoto et al.
patent: 59-154808 (1984-09-01), None
patent: 62-154909 (1987-07-01), None
patent: 63-45918 (1988-02-01), None
patent: 3-165118 (1991-07-01), None
patent: 5-204339 (1993-08-01), None
patent: 9-44100 (1997-02-01), None
patent: 9-244590 (1997-09-01), None
patent: 2000-235376 (2000-08-01), None
Doi Yasuyuki
Nishi Kazuyoshi
Oomori Tetsuro
Lefkowitz Sumati
McDermott Will & Emery LLP
Nelson Alecia D.
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