Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Reexamination Certificate
2007-03-27
2007-03-27
Shankar, Vijay (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
C345S204000, C345S212000
Reexamination Certificate
active
09823927
ABSTRACT:
A power supply circuit (300) for a display device such as a liquid crystal outputs a boosted supply voltage VDD2during normal operation, and generates a non-boosted supply voltage VDD2having a voltage lower than that during the normal display operation by controlling the switches for switching the output within the power supply circuit (300) during a power save mode. The non-boosted supply voltage is supplied to the analog circuits of a driving circuit (100) so that the power consumption at the analog circuits is reduced. By controlling the switch for switching the output within the power supply circuit and the supply of the power supply clock, the circuit can be switched, in the power save mode, to either a mode where a lower supply voltage is generated or to a mode where the power supply is turned off.
REFERENCES:
patent: 4155112 (1979-05-01), Miller et al.
patent: 4347474 (1982-08-01), Brooks et al.
patent: 4355277 (1982-10-01), Davis et al.
patent: 4544912 (1985-10-01), Iwamoto et al.
patent: 4584517 (1986-04-01), Schwob
patent: 5155840 (1992-10-01), Niijima
patent: 5537650 (1996-07-01), West et al.
patent: 5552836 (1996-09-01), Nobuoka
patent: 5910891 (1999-06-01), Jo
patent: 5991883 (1999-11-01), Atkinson
patent: 6078319 (2000-06-01), Bril et al.
patent: 6087816 (2000-07-01), Volk
patent: 6297622 (2001-10-01), Yatabe
patent: 6323851 (2001-11-01), Nakanishi
patent: 6380982 (2002-04-01), Obitsu
patent: 0-707301 (1996-04-01), None
patent: 04-095995 (1992-03-01), None
patent: A 10-164840 (1999-06-01), None
patent: 11-202842 (1999-07-01), None
patent: A 11-202842 (1999-07-01), None
patent: 11-282435 (1999-10-01), None
Kitagawa Makoto
Kobayashi Mitsugu
Tsutsui Yusuke
Uehara Hisao
Sanyo Electric Co,. Ltd.
Shankar Vijay
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