Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2005-11-08
2005-11-08
Awad, Amr A. (Department: 2675)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S211000, C345S089000
Reexamination Certificate
active
06963325
ABSTRACT:
In a display driving apparatus of the present invention and a liquid display apparatus using the same, a DC current is supplied to a reference voltage generating circuit from both ends of a resistance of the resistance divided circuit, via a bypass circuit, which is a bypass other than a route from a power source. This arrangement allows the reference voltage generating circuit itself to compensate current supply ability of a reference voltage supplied from the power source, even if an output circuit is omitted from the arrangement, thereby preventing a waveform of a gradation display voltage from having non-sharp rising and falling edges, or preventing variation in voltage due to charging and discharging of a pixel capacitor. This ensures an accurate gradation display voltage.
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Kajihara Noriyuki
Orisaka Yukihisa
Yano Takeshi
Awad Amr A.
Birch & Stewart Kolasch & Birch, LLP
Sharp Kabushiki Kaisha
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