Method for driving active matrix type liquid crystal display

Details Method for driving active matrix type liquid crystal display Method for driving active matrix type liquid crystal display

2006-02-21

2006-02-21

Awad, Amr A. (Department: 2675)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S099000, C345S208000, C345S211000

Reexamination Certificate

active

07002543

ABSTRACT:
In an active matrix type liquid crystal display, during a non-display period such as the horizontal blanking interval or the vertical blanking interval wherein no pixel TFT is selected, the voltage of the opposing electrode is changed so that the power consumption is reduced with application of sufficient voltage to the liquid crystal and without increasing the amplitude of the display data. Also, a change alleviating voltage VM is applied during the change in the opposing electrode voltage to data lines for supplying display data to each of pixel TFTs during the display period, in order to prevent changes in the potential of the data lines caused by the change in the opposing electrode voltage and large reverse bias from being loaded to switches Hsw for outputting display data to the data lines.

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