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:
Apr. 29, 2008
Filed:
Jun. 10, 2005
Kyoko Hino, Sodegaura, JP;
Toshihiko Suzuki, Ichihara, JP;
Hiroaki Takahata, Ichihara, JP;
Ryuma Kuroda, Ichihara, JP;
Kyoko Hino, Sodegaura, JP;
Toshihiko Suzuki, Ichihara, JP;
Hiroaki Takahata, Ichihara, JP;
Ryuma Kuroda, Ichihara, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Abstract
Disclosed is a phase retardation film including two outer layers facing each other, and an inner layer interposed between the outer layers, each of the outer layers are formed of a non-styrene polymeric material and the inner layer being formed of a polymeric material with a negative intrinsic birefringence, wherein the phase retardation film has a negative intrinsic birefringence and a Haze from 0% to 1%. A liquid crystal display device including the phase retardation film is also disclosed.