Image display apparatus and method

Details Image display apparatus and method Image display apparatus and method

2005-12-27

2005-12-27

Lefkowitz, Sumati (Department: 2675)

Computer graphics processing and selective visual display system

Display driving control circuitry

Intensity or color driving control

C345S102000, C345S692000, C345S693000, C349S061000

Reexamination Certificate

active

06980225

ABSTRACT:
A liquid crystal display apparatus that uses a backlight for display includes a video signal time compression circuit for compressing a video signal in the time axis direction and outputting the time-compressed video signal, an LCD controller for driving a liquid crystal panel based on the time-compressed video signal, and a source driver and a gate driver. The liquid crystal display apparatus also includes a motion detection circuit for detecting the amount of motion of a display image based on the video signal, a PWM modulation pulse generation circuit for generating modulation pulses different in frequency according to the detection result from the motion detection circuit, and an inverter for lighting up the backlight based on the modulation pulses, to thereby enable reduction of image contour blurring in a moving image and reduction of flicker in a still image.

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