The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 02, 2010
Filed:
May. 15, 2006
Uv curable alignment material for fabrication of monolithic compensators for liquid crystal displays
Leonard G. Hale, Cambria, CA (US);
Young J. Chung, Calabasas, CA (US);
William J. Gunning, Iii, Newbury Park, CA (US);
Leonard G. Hale, Cambria, CA (US);
Young J. Chung, Calabasas, CA (US);
William J. Gunning, III, Newbury Park, CA (US);
Teledyne Scientific & Imaging, LLC, Thousand Oaks, CA (US);
Abstract
A segmented, rigid-rod aromatic polyimide mixed with a UV curable acrylate photopolymer material comprises an alignment layer for aligning nematic polymeric liquid crystal compensator films. The material may also provide an out-of-plane retardation. The segmented, rigid-rod aromatic polyimide-based UV curable acrylate alignment layer, when applied in appropriate thickness, functions as a negative uniaxial C-plate compensator and causes alignment of the nematic liquid crystal molecules. The combination of the retardation provided by the alignment layer and the compensator film deposited on it provides a significant improvement in the contrast and color stability of liquid crystal displays (LCDs) at large viewing angles.