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. 30, 2018
Filed:
Oct. 25, 2013
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Masayuki Tsunekawa, Okayama, JP;
DAI NIPPON PRINTING CO., LTD., Tokyo, JP;
Abstract
Provided is an optical laminate for a front surface of an in-cell touch panel liquid crystal element in which the thickness can be reduced while necessary functions are ensured, and a liquid crystal screen becoming cloudy can be prevented. The optical laminate for a front surface of an in-cell touch panel liquid crystal element comprises a phase difference plate, a polarizing film, and a surface protective film in this order, and further comprises a conductive layer. The surface protective film has optical anisotropy that scatters linear polarized light emitted from the polarizing film, and a thickness of the optical laminate is in a range of 90 μm to 450 μm.