Drive circuit of TFTLCD

Details Drive circuit of TFTLCD Drive circuit of TFTLCD

2007-05-01

2007-05-01

Patel, Nitin (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S087000

Reexamination Certificate

active

10250032

ABSTRACT:
A drive circuit of a thin-film transistor type liquid crystal display. A plurality of source drivers is connected in series. Each of the source drives has a charge pump therein to compensate the voltage drop caused by the metal wires for connecting the neighboring source drivers. The charge pump is preferably disposed at an input of the power line. A capacitor is further connected to each of the power lines for rectifying and filtering the power source transmitted by the power lines. The drive circuit also has a plurality of gate drivers. When the voltage drop caused by the power transmission line between the gate drivers is significant enough to affect a normal operation of the gate drivers, the charge pump is installed in each of the gate drivers.

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