Electrically isolated pixel element in a low voltage activated a

Details Electrically isolated pixel element in a low voltage activated a Electrically isolated pixel element in a low voltage activated a

1997-04-01

1999-02-02

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349 43, 349138, G02F 1136, G02F 11333

Patent

active

058672427

ABSTRACT:
The present invention is a novel pixel structure, and method for making the same, that reduces wasteful voltage drop associated with other pixel structures that cover their pixel elements with a final passivation layer. The presently claimed pixel structure is a combination of a thin film transistor (TFT), an associated pixel element, and a passivation layer. The TFT is first deposited atop a suitable substrate and patterned. Then, the passivation layer is deposited on top of the thin film transistor. Contact cuts are made into the passivation layer where the pixel element is to contact the TFT. Finally, the pixel element is deposited--lying atop the passivation layer and contacting with the underlying TFT where the contact cuts were made in the passivation layer.

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patent: 5518805 (1996-05-01), Ho et al.
patent: 5619033 (1997-04-01), Weisfield
Kaneko, E. Liquid Crystal TV Displays: Principles and Applications of Liquid Crystal Displays. KTK Scientific Publishers/Tokyo, .COPYRGT.1987, pp. 211-277.
European Search Report date Aug. 21, 1995 for Application No. 95302792.7.

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