LCD device having a smaller level difference

Details LCD device having a smaller level difference LCD device having a smaller level difference

2006-11-28

2006-11-28

Schechter, Andrew (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S149000, C349S150000, C349S151000

Reexamination Certificate

active

07142276

ABSTRACT:
The TFT substrate of an LCD device has an array of pixel electrodes defined by a plurality of signal lines and a plurality of scanning lines. Each terminal of the scanning lines includes a first metallic pattern, a second metallic pattern in contact with the first metallic pattern through a first via hole, and an ITO pattern in contact with the second metallic pattern through a second via hole. The ITO pattern has a width smaller than the width of the first via hole and larger than the second via hole, thereby providing the TFT substrate with a smaller level difference. The smaller level difference prevents the dust generated during a rubbing treatment from attaching onto the TFT substrate.

REFERENCES:
patent: 6839120 (2005-01-01), Choo et al.
patent: 2002/0033918 (2002-03-01), Shigeno et al.
patent: 2003/0086046 (2003-05-01), You
patent: 09-043629 (1997-02-01), None
patent: 2001-311963 (2001-11-01), None
patent: 2001-66244 (2001-11-01), None

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