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:
May. 18, 2021
Filed:
Dec. 19, 2016
Sharp Kabushiki Kaisha, Sakai, JP;
Masanobu Mizusaki, Sakai, JP;
Hiroshi Tsuchiya, Sakai, JP;
SHARP KABUSHIKI KAISHA, Osaka, JP;
Abstract
The present invention provides a liquid crystal display device capable of maintaining a favorable voltage holding ratio and reducing occurrence of image sticking and stain and a decrease in contrast ratio in a high-temperature environment for a long time while including a photo-alignment film, and a method for manufacturing such a liquid crystal display device. The liquid crystal display device of the present invention includes paired substrates, a liquid crystal layer disposed between the substrates, a photo-alignment film disposed between at least one of the substrates and the liquid crystal layer, and a polymer layer disposed between the liquid crystal layer and the photo-alignment film. The photo-alignment film contains a polymer that contains a photo-reactive functional group. The polymer layer contains a polymer that has a structure derived from a specific polymerization initiator and a structure derived from a specific monomer.