Liquid crystal display device having a patterned spacer and...

Details Liquid crystal display device having a patterned spacer and... Liquid crystal display device having a patterned spacer and...

2006-01-24

2006-01-24

Nguyen, Dung T. (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S123000

Reexamination Certificate

active

06989883

ABSTRACT:
A liquid crystal display device includes first and second substrates facing each other and spaced apart by a uniform cell gap, an array element having a switching element on the first substrate and a first transparent electrode connected to the switching element, a first patterned spacer disposed on the array element having a first height less than the uniform cell gap, a second transparent electrode under the second substrate, a second patterned spacer disposed beneath the second transparent electrode, the second patterned spacer having a second height less than the uniform cell gap and connected to the first patterned spacer, a first alignment layer covering the first patterned spacer, a second alignment layer covering the second patterned spacer, and a liquid crystal material layer interposed between the first and second alignment layers, wherein the first and second spacers are connected to each other and a summation of the first and second heights of the first and second patterned spacers is equivalent to the uniform cell gap.

REFERENCES:
patent: 4653864 (1987-03-01), Baron et al.
patent: 6335780 (2002-01-01), Kurihara et al.
patent: 6732356 (2004-05-01), Chen
patent: 6795141 (2004-09-01), Yamada
patent: 2001/0026347 (2001-10-01), Sawasaki et al.
patent: 2002/0060662 (2002-05-01), Hong

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