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:
Dec. 20, 2022
Filed:
Jun. 29, 2018
Sharp Kabushiki Kaisha, Sakai, JP;
Masanobu Mizusaki, Sakai, JP;
Hiroshi Tsuchiya, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
The present invention provides a liquid crystal alignment agent having high thermal stability and high solvent solubility, and a liquid crystal panel in which occurrence of ghosting and stain and a decrease in contrast are suppressed even under environments at high temperatures long period of time. The present invention is a liquid crystal alignment agent including a copolymer including a structure represented by a chemical formula (1) below, and a solvent. In the formula, X is a specified structure including a cyclic hydrocarbon group, Yis a specified structure including a cyclic hydrocarbon group, Rrepresents a homogeneous alignment group, a homeotropic alignment group, or a photoreactive functional group, and Zand Zare the same or different, and represent an —NH— group, an —O— group, or a —S— group.