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:
Jul. 27, 2010
Filed:
Jul. 03, 2006
Kenichi Nakagawa, Shizuoka, JP;
Kenichi Nakagawa, Shizuoka, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
A retardation compensation element () has a first optical anisotropic layer () that functions as a negative C-plate, and a second and a third optical anisotropic layers () that function as positive O-plates. VA mode liquid crystal molecules () tilt at an azimuth angle of 45 degrees and a polar angle of 5 degrees when no voltage is applied thereto. The second and third optical anisotropic layers have optical axes respectively at an angle of −105 degrees and +105 degrees from the tilt direction of the liquid crystal molecule. The first optical anisotropic layer () compensates the retardation of light that enters a liquid crystal layer () at an oblique angle while the second and third optical anisotropic layers () compensate the retardation of light that enters the liquid crystal layer at a right angle.