Power supply circuit for display unit, method for...

Details Power supply circuit for display unit, method for... Power supply circuit for display unit, method for...

2005-12-13

2005-12-13

Shankar, Vijay (Department: 2673)

Computer graphics processing and selective visual display system

Display driving control circuitry

Display power source

C345S204000, C345S210000, C345S211000, C345S214000

Reexamination Certificate

active

06975313

ABSTRACT:
The invention prevents or substantially prevents the brightness from changing according to the number of pixels that are turned on in a display. A power supply circuit calculates the total number of pixels that are turned on using ON/OFF data RD that stipulates the ON/OFF state of the pixels1400and controls the output impedance of a power supply voltage that is transmitted to a display panel, so that the output impedance becomes lower as the calculated total number of the pixels increases.

REFERENCES:
patent: 6262704 (2001-07-01), Kurumisawa et al.
patent: 6526516 (2003-02-01), Ishikawa et al.
patent: 2002/0018059 (2002-02-01), Yanagi et al.
patent: 2002/0036624 (2002-03-01), Ohta et al.
patent: A 64-78527 (1989-03-01), None
patent: A 2-87189 (1990-03-01), None
patent: A 6-348227 (1994-12-01), None
patent: A 7-336228 (1995-12-01), None
patent: A 8-211853 (1996-08-01), None
patent: A 10-10497 (1998-01-01), None
patent: A 10-11026 (1998-01-01), None
patent: A 10-269787 (1998-10-01), None
patent: A 10-312682 (1998-11-01), None
patent: A 11-288255 (1999-10-01), None
patent: A 2000-111867 (2000-04-01), None
patent: A 2000-250475 (2000-09-01), None
patent: A 2000-276111 (2000-10-01), None
patent: A 2000-305513 (2000-11-01), None
patent: A 2000-305524 (2000-11-01), None
patent: A 2000-330085 (2000-11-01), None
patent: A 2002-158096 (2002-05-01), None
patent: A 2002-189437 (2002-07-01), None

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