Pixel circuit substrate, LCD apparatus and projection...

Details Pixel circuit substrate, LCD apparatus and projection... Pixel circuit substrate, LCD apparatus and projection...

2005-10-05

2009-12-01

Heyman, John (Department: 2871)

Liquid crystal cells, elements and systems

Particular excitation of liquid crystal

Electrical excitation of liquid crystal

C349S038000, C349S047000

Reexamination Certificate

active

07626648

ABSTRACT:
A pixel circuit substrate includes a first interlayer insulating film which is made of an inorganic material at least in a source and drain regions of a thin film transistor. A contact hole is formed in an area above the source and drain regions of a thin film transistor in the first interlayer insulating film. A wiring layer is formed on the first interlayer insulating film, extends to an inner wall and a bottom surface of the contact hole. On a top surface of the wiring layer is formed a recess reflecting the shape of a contact hole. A second interlayer insulating film is formed on the wiring layer, embedded in the recess and has a flat top surface in an area above the thin film transistor. A storage capacitor on the second interlayer insulating film is disposed in the area above the thin film transistor.

REFERENCES:
patent: 6141066 (2000-10-01), Matsushima
patent: 7122830 (2006-10-01), Ishikawa et al.
patent: 10-10580 (1998-01-01), None
patent: 2001-281684 (2001-10-01), None

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