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:
Jun. 12, 2012
Filed:
Jan. 19, 2007
Shinichiro Suzuki, Koganei, JP;
Masataka Takimoto, Machida, JP;
Shinichiro Suzuki, Koganei, JP;
Masataka Takimoto, Machida, JP;
Konica Minolta Opto, Inc., Tokyo, JP;
Abstract
Disclosed is a cellulose ester film which, when used in a polarizing plate, can impart excellent dimensional stability, curling properties and surface properties to the polarizing plate. Also disclosed is a light-scattering-film, a polarizing plate or a liquid crystal display element which is produced by using the cellulose ester film, and therefore has more excellent optical anisotropy, higher surface properties and a smoother surface, causes less curling, and has good surface quality. The cellulose ester film comprises 1 to 50% by mass (inclusive) of microparticles having an average particle diameter of 1 to 400 nm (inclusive) and a compound showing negative birefringence in the direction of drawing, and has a retardation value (R) defined by the equation (I) of 0 to 5 nm (inclusive) and a retardation value (R) defined by the equation (II) of −10 to 20 nm (inclusive), both measured at 23° C. and 55% RH: Equation (I): R=(nx−ny)×d; and Equation (II): R=[(nx+ny)/2×nz]×d.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile