Substrate for liquid crystal display and liquid crystal...

Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal

Reexamination Certificate

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C349S106000

Reexamination Certificate

active

07012658

ABSTRACT:
The generation of residues or flakes of a color filter is suppressed to eliminate conduction failures on an LCD substrate having a color filter on an array substrate. A passivation film formed between a pixel electrode formed in each of a plurality of pixel regions and a TFT for driving the pixel electrode has a multi-layer structure constituted by SiN layers and a SiO layers, and the SiO layer is located at the top of the film. A resin CF layer is formed on the passivation film having such a multi-layer structure. Since the resin CF layer is formed directly on the SiO layer, reduction of the adhesion of the same is suppressed. As a result, the color filter is unlikely to come off when the resin CF layer is formed, and residues of the color filter is unlikely to be generated when a contact hole is formed in the resin CF layer. This suppresses conduction failures and makes it possible to provide a reliable TFT substrate and LCD having high display characteristics.

REFERENCES:
patent: 6825907 (2004-11-01), Hashiguchi et al.
patent: 2004/0238886 (2004-12-01), Lee et al.
patent: 06-202153 (1994-07-01), None
patent: 10-039292 (1998-02-01), None
patent: 2000-098422 (2000-04-01), None
patent: 2001-142095 (2001-05-01), None
patent: 2002-277899 (2002-09-01), None

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