Liquid crystal display and ESD protection circuit thereof

Details Liquid crystal display and ESD protection circuit thereof Liquid crystal display and ESD protection circuit thereof

2008-05-20

2008-05-20

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

C345S087000, C345S098000, C361S088000

Reexamination Certificate

active

07375724

ABSTRACT:
A protection circuit of an LCD panel. The LCD panel includes a display cell coupled between a data electrode, a gate electrode and a common electrode. A switch includes a first terminal and a second terminal. The first terminal is coupled to the data electrode, the gate electrode or both. The switch is turned on when a voltage level of the first terminal or the second terminal exceeds a threshold voltage. An ESD protection circuit includes a capacitive load and a resistive load, coupled between the second terminal and the common electrode.

REFERENCES:
patent: 6175394 (2001-01-01), Wu et al.
patent: 6323847 (2001-11-01), Kaneko et al.
patent: 6493047 (2002-12-01), Ha
patent: 7006068 (2006-02-01), Haga
patent: 7151516 (2006-12-01), Takeda et al.
patent: 2001/0017611 (2001-08-01), Moriyama
patent: 2002/0154080 (2002-10-01), Miyazaki

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