Array substrate having polysilicon TFT for liquid crystal...

Details Array substrate having polysilicon TFT for liquid crystal... Array substrate having polysilicon TFT for liquid crystal...

2005-01-11

2005-01-11

Dudek, James A. (Department: 2871)

Liquid crystal cells, elements and systems

Particular excitation of liquid crystal

Electrical excitation of liquid crystal

Reexamination Certificate

active

06842202

ABSTRACT:
An array substrate for a liquid crystal display (LCD) device includes a plurality of gate lines extending along a first direction on a first substrate, a plurality of data lines extending along a second direction on the first substrate, the gate and data lines defining a pixel region by crossing each other, a thin film transistor formed at a portion adjacent to a cross point of the gate and data lines, the thin film transistor having a gate electrode, an active layer, a source electrode extending from the data line, and a drain electrode spaced apart from the source electrode, the source and drain electrodes contacting the active layer via source and drain contact holes, wherein a first portion of the active layer corresponding to the source electrode has an area wider than other portions of the active layer corresponding to the gate electrode and the drain electrode to include areas of the source electrode and the source contact hole, and a pixel electrode in the pixel region, the pixel electrode being electrically connected to the drain electrode.

REFERENCES:
patent: 5856854 (1999-01-01), Hyun
patent: 6671022 (2003-12-01), Lee et al.
patent: 20020113916 (2002-08-01), Hashiguchi et al.
patent: 20020158995 (2002-10-01), Hwang et al.

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