Gray scale voltage generating circuit

Details Gray scale voltage generating circuit Gray scale voltage generating circuit

2007-07-31

2007-07-31

Nguyen, Linh (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S098000, C341S097000, C345S087000, C345S089000, C345S098000

Reexamination Certificate

active

11352296

ABSTRACT:
A gray scale voltage generating circuit includes a first resistor ladder circuit, connected between a high voltage power supply terminal and a low voltage power supply terminal and having nodes for outputting respective reference voltages, a second resistor ladder circuit, connected between the high voltage power supply terminal and the low voltage power supply terminal, and plural voltage follower circuits, connected between the respective nodes of the second resistor ladder circuit and the respective nodes of the first resistor ladder circuit with first resistor provided between the n/2'th node voltage and the high voltage power supply terminal and a second resistor provided between the n/2+1'th node voltage and the low voltage power supply terminal.

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