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:
Sep. 20, 2022
Filed:
Apr. 12, 2019
Nitto Denko Corporation, Ibaraki, JP;
Jin Yoshikawa, Ibaraki, JP;
Hiroyuki Takemoto, Ibaraki, JP;
Mariko Hirai, Ibaraki, JP;
Masanori Otsuka, Ibaraki, JP;
NITTO DENKO CORPORATION, Ibaraki, JP;
Abstract
The liquid crystal display apparatus includes: a liquid crystal panel; a light control layer; and a surface light source device, wherein the liquid crystal panel includes: a liquid crystal cell; a viewer-side polarizing plate; and a back surface-side polarizing plate, wherein the light control layer includes a first transparent substrate; a first transparent electrode layer; a composite layer of a polymer matrix and a liquid crystal compound; a second transparent electrode layer; and a second transparent substrate, wherein the first transparent substrate and the second transparent substrate each independently have a thickness of 70 μm or less, wherein the first transparent substrate and the second transparent substrate each independently have a front retardation at a wavelength of 590 nm of 100 nm or less, wherein the surface light source device is configured to emit light which has directivity in an approximately normal direction of the light emitting surface.