Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal
Reexamination Certificate
2006-01-03
2006-01-03
Nguyen, Dung T. (Department: 2871)
Liquid crystal cells, elements and systems
Particular excitation of liquid crystal
Electrical excitation of liquid crystal
C349S041000, C349S042000, C349S052000, C349S113000, C349S114000
Reexamination Certificate
active
06982769
ABSTRACT:
A substrate for a LCD device improves the flatness of the outermost substrate surface in the contact region for interconnecting an electrode of a switching element (e.g., a TFT) and a pixel electrode to each other in each pixel. Switching elements for respective pixels are formed on a transparent plate. Protrusions for the respective pixels are formed on the plate to protrude to a vicinity of an outermost surface of the substrate. Each protrusion raises an electrode of a corresponding switching element to the vicinity of the outermost surface in the corresponding pixel. A planarization layer forming the outermost surface is formed to cover the switching elements, the protrusions, and the electrodes of the elements in all the pixels. Pixel electrodes for the respective pixels are formed on the outermost surface. Each pixel electrode contacts the corresponding electrode of the element in the vicinity of the outermost surface.
REFERENCES:
patent: 5818550 (1998-10-01), Kadota et al.
patent: 5943105 (1999-08-01), Fujikawa et al.
patent: 6515428 (2003-02-01), Yeh et al.
patent: 13-147446 (2001-05-01), None
patent: 1998-21818 (1998-06-01), None
NEC LCD Technologies Ltd.
Nguyen Dung T.
Scully Scott Murphy & Presser
Wang George Y.
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