Driver IC for display and display including same

Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix

Reexamination Certificate

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Details

C345S089000, C345S094000

Reexamination Certificate

active

07903071

ABSTRACT:
A driver IC for a display that includes a first D/A converter with a 1stselection circuit that receives 1stimage signals and supplies a selected positive divisional voltage to a 1stoperational amplifier, which supplies a positive pixel voltage by amplifying the selected positive divisional voltage; a 2ndD/A converter with a 2ndselection circuit that receives 2ndimage signals and supplies a selected negative divisional voltage to a 2ndoperational amplifier, which supplies a negative pixel voltage by amplifying the selected negative divisional voltage; and a polarity switching switch with 1stand 2ndswitches connecting the 1stand 2ndD/A converters respectively, the polarity switching switch being switched to supply each of output terminals corresponding to the 1stand 2ndimage signals alternately with the positive and negative pixel voltages every horizontal scan period by activating/inactivating the 1stand 2ndswitches in a complementary manner.

REFERENCES:
patent: 2001/0028336 (2001-10-01), Yamagata et al.
patent: 2002/0008686 (2002-01-01), Kumada et al.
patent: 2003/0034947 (2003-02-01), Tanaka et al.
patent: 2005/0225573 (2005-10-01), Kudo et al.
patent: 62-24713 (1987-02-01), None
patent: 9-138670 (1997-05-01), None
patent: 9-258695 (1997-10-01), None
patent: 2001-290123 (2001-10-01), None

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