Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Reexamination Certificate
2005-06-23
2010-10-26
Awad, Amr (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
C345S098000
Reexamination Certificate
active
07821512
ABSTRACT:
In apparatus for generating an analog driving voltage, a ripple amplitude determining unit compares the analog driving voltage with a reference voltage to determine a ripple level of the analog driving voltage and an analog driving voltage generating unit adjusts an analog driving voltage level based on the determined ripple level. In an apparatus for generating a common electrode voltage, a common electrode voltage ripple detecting unit compares ripple amplitude of the common electrode voltage with a ripple reference voltage to generate a common electrode voltage control signal and a common electrode voltage generating unit controls the common electrode voltage level based on the common electrode voltage control signal. Therefore, the analog driving voltage and the common electrode voltage are adjusted to appropriate voltage levels for reducing current consumption and flicker.
REFERENCES:
patent: 5489910 (1996-02-01), Kuwata et al.
patent: 2002/0050973 (2002-05-01), Takaoka et al.
patent: 2004/0080962 (2004-04-01), Charych
patent: 2005/0088105 (2005-04-01), Tajiri et al.
Awad Amr
Innovation Counsel LLP
Samsung Electronics Co,. Ltd.
Willis Randal
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