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:
Jun. 07, 2016
Filed:
Apr. 24, 2013
Light Polymers Holding, George Town, KY;
Irina Kasyanova, South San Francisco, CA (US);
Mary Parent, South San Francisco, CA (US);
Evgeni Poliakov, South San Francisco, CA (US);
Valery Kuzmin, South San Francisco, CA (US);
LIGHT POLYMERS HOLDING, , KY;
Abstract
Provided are methods of depositing polymer solutions on substrates to form various optical elements. A polymer solution may include about%-% by weight of a specific polymer having rigid rod-like molecules. The molecules may include various cores, spacers, and sides groups to ensure their solubility, viscosity, and cross-linking ability. The deposition techniques may include slot die, spray, molding, roll coating, and so forth. Pre-deposition techniques may be used to improve wettability and adhesion of substrates. Post-deposition techniques may include ultraviolet cross-linking, specific drying techniques, evaporation of solvent, treating with salt solutions, and shaping. The disclosed polymers and deposition processes may yield optical elements with high refractive index values, such as greater than 1.6. These optical elements may be used as +A plates, −C plates, or biaxial polymers and used as retarders in LCD active panels or as light collimators and light guides.