Invention Grant
- Patent Title: Electro-optical display with in-situ polymerized columns providing alignment and structural bond between substrate
- Patent Title (中): 具有原位聚合柱的电光显示器提供基板之间的对准和结构粘合
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Application No.: US10222745Application Date: 2002-08-16
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Publication No.: US07075613B2Publication Date: 2006-07-11
- Inventor: Satyendra Kumar , Bharat Raj Acharya , Hyunchul Choi
- Applicant: Satyendra Kumar , Bharat Raj Acharya , Hyunchul Choi
- Applicant Address: US OH Kent
- Assignee: Kent State University
- Current Assignee: Kent State University
- Current Assignee Address: US OH Kent
- Agency: Fay, Sharpe, Fagan, Minnich & McKee, LLP
- Main IPC: G02F1/1339
- IPC: G02F1/1339

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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