Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2006-07-11
2006-07-11
Frech, Karl D. (Department: 2876)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
Reexamination Certificate
active
07075613
ABSTRACT:
A liquid crystal display device comprises two substrates facing and spaced from each other, at least one of the substrates being transparent; an electro-optical material filling a first portion of the space between the substrates, the electro-optical material comprising molecules whose spatial orientation can be altered by application of an electric field across the two substrates; and a polymeric material filling a second portion of the space between the substrates, the polymeric material having been polymerized in situ between the plates, wherein the polymeric material forms a multiplicity of microscopic polymer columns extending between the two substrates, and the columns provide both a structural bond between the two substrates for maintaining the spacing between the substrates and alignment of the molecules of the electro-optical material, with the alignment resulting from the close spacing of the microscopic columns. A method to fabricate electro-optical displays having two facing substrates, electro-optical material in the space between the substrates, and in-situ polymerized microscopic columns extending between the substrates is also disclosed.
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Acharya Bharat Raj
Choi Hyunchul
Kumar Satyendra
Fay Sharpe Fagan Minnich & McKee LLP
Frech Karl D.
Kent State University
Labaze Edwyn
LandOfFree
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