Computer graphics processing and selective visual display system – Display driving control circuitry
Reexamination Certificate
2007-03-13
2007-03-13
Nguyen, Jimmy H. (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
C089S163000
Reexamination Certificate
active
09925909
ABSTRACT:
The signal line drive circuit is provided with: a reference voltage chooser circuit for choosing one of incoming voltages in accordance with tones represented by an image signal to output the chosen voltage as a signal line drive signal; and a reference voltage line for directly transmitting first reference voltages VB1(inclusive of a maximum voltage value VB1max and a minimum voltage value VB1min) supplied by an external reference power supply circuit to the reference voltage chooser circuit. The arrangement eliminates the need to provide a buffer circuit to a reference voltage line over which the first reference voltage is directly transmitted, thereby reducing that electric current which would otherwise flow through the buffer circuit.
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Kumada Kouji
Ohta Takashige
Yanagi Toshihiro
Conlin David G.
Edwards Angell Palmer & & Dodge LLP
Nguyen Jimmy H.
Sharp Kabushiki Kaisha
Tucker David A.
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