Computer graphics processing and selective visual display system – Computer graphics display memory system – Graphic display memory controller
Reexamination Certificate
2007-01-08
2011-11-29
Tung, Kee M (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics display memory system
Graphic display memory controller
C365S200000
Reexamination Certificate
active
08068113
ABSTRACT:
The present invention provides a display control semiconductor integrated circuit having therein a RAM, capable of repairing a defective bit included in the RAM and improving the yield without significantly increasing the occupation area. A liquid crystal controller/driver in which a RAM for storing display data is provided in a chip and the storage capacity of the built-in RAM is determined according to the size of a display screen of a liquid crystal panel to be driven, includes a fuse circuit for setting a defect address, and a comparing circuit for comparing the defect address set in the fuse circuit with an input address. The liquid crystal controller/driver also has a redundant circuit, when the addresses match each other, for replacing the input address with an address that instructs the spare memory area and supplying the address to an address decoder.
REFERENCES:
patent: 6414885 (2002-07-01), Nagamatsu et al.
patent: 7184356 (2007-02-01), Noguchi et al.
patent: 2002/0036932 (2002-03-01), Lee et al.
patent: 2004/0150653 (2004-08-01), Sakamaki et al.
patent: 2006/0083087 (2006-04-01), Cowles et al.
patent: 2006/0193184 (2006-08-01), Poechmueller
patent: 2000-347646 (2000-12-01), None
patent: WO 2005/015569 (2005-02-01), None
Iizuka Masaru
Kinno Hiroto
Shiraishi Iori
Tsuji Sosuke
Crawford Jacinta M
Miles & Stockbridge P.C.
Renesas Electronic Corporation
Tung Kee M
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