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:
Jan. 07, 2020
Filed:
Oct. 03, 2018
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Tomoyuki Hayasaki, Tokyo, JP;
Hitoshi Asami, Tokyo, JP;
Yoshiyuki Yahagi, Tokyo, JP;
Chihiro Takahashi, Tokyo, JP;
Kouichi Tanaka, Tokyo, JP;
NIPPON KAYAKU KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An optical laminate structure includes a light control laminate having at least one light reflection layer, a first quarter wave plate laminated on one of surfaces of the light reflection layer, and a second quarter wave plate laminated on another surface of the light reflection layer. The light reflection layer includes a right-handed circularly polarized light reflection layer or a left-handed circularly polarized light reflection layer, and an angle formed by a polarization axis of the S-polarized light or P-polarized light incident from a position inclined from an axis perpendicular to a surface of the light control laminate by 45° or more and 65° or less and a slow axis of the first quarter wave plate on a side to which the S-polarized light or P-polarized light is incident is 5° or more and less than 45°.