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:
Aug. 02, 2022
Filed:
Apr. 20, 2018
Nitto Denko Corporation, Ibaraki, JP;
Ryo Kawamura, Ibaraki, JP;
Takehito Fuchida, Ibaraki, JP;
Katsunori Takada, Ibaraki, JP;
Yoshitsugu Kitamura, Ibaraki, JP;
NITTO DENKO CORPORATION, Ibaraki, JP;
Abstract
A liquid crystal display apparatus having improved viewing angle characteristics in a region vertically asymmetrical. A liquid crystal display apparatus of the present invention includes: a liquid crystal cell including a liquid crystal layer containing liquid crystal molecules aligned in homogeneous alignment under a state in which an electric field is absent; a first polarizer arranged on a viewer side of the liquid crystal cell; a second polarizer arranged on a back surface side of the liquid crystal cell; a first optical compensation layer arranged between the liquid crystal cell and the first polarizer; and a second optical compensation layer arranged between the liquid crystal cell and the first optical compensation layer. A refractive index nzin a thickness direction of the first optical compensation layer is less than 1.5187, and a refractive index nzin a thickness direction of the second optical compensation layer is less than 1.5340.