Signal-adjusted LCD control unit

Details Signal-adjusted LCD control unit Signal-adjusted LCD control unit

2007-02-06

2007-02-06

Shalwala, Bipin (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S089000, C345S096000

Reexamination Certificate

active

10090954

ABSTRACT:
An LCD control unit includes a software adjustment block for adjusting the γ-correction voltages by a software. The LCD control unit includes a voltage generator block generating n γ-correction voltages and m Vcom voltages based on a voltage address signal, a voltage selecting block selecting a pair of γ-correction voltages and a Vcom voltage based on a time series polarity control signal, and an LCD driver having a γ-correction resistor string which receives the γ-correction voltages at both the ends thereof. The LCD driver converts external data signals into display voltages having voltages corrected by the outputs from the γ-correction resistor string.

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patent: 6466191 (2002-10-01), Choi et al.
patent: 6570560 (2003-05-01), Hashimoto

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