Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2006-11-14
2006-11-14
Vo, Tuyet Thi (Department: 2821)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S215000, C345S690000
Reexamination Certificate
active
07136038
ABSTRACT:
A gamma voltage generating apparatus for reducing the number of parts to simplify a structure thereof is disclosed. The apparatus is operated in various modes such that a brightness value can be changed in correspondence with an external environment. A red gamma voltage generator has at least one variable resistor to generate a plurality of red gamma voltages and control the plurality of red gamma voltages such that said brightness value can be changed in correspondence with each of said various modes. A green gamma voltage generator has at least one variable resistor to generate a plurality of green gamma voltages and control the plurality of green gamma voltages such that said brightness value can be changed in correspondence with each of said various modes. A blue gamma voltage generator has at least one variable resistor to generate a plurality of blue gamma voltages and control the plurality of blue gamma voltages such that said brightness value can be changed in correspondence with each of said various modes.
REFERENCES:
patent: 6657619 (2003-12-01), Shiki
patent: 6778161 (2004-08-01), Chen et al.
patent: 7030840 (2006-04-01), Mametsuka
patent: 2004/0113923 (2004-06-01), Ha et al.
Ha Won Kyu
Kim Hak Su
Park Eun Myung
Birch & Stewart Kolasch & Birch, LLP
LG Electronics Inc.
Vo Tuyet Thi
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