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:
Sep. 13, 2005
Filed:
Sep. 24, 2003
Masaya Adachi, Hitachi, JP;
Makoto Tsumura, Hitachi, JP;
Ikuo Hiyama, Hitachi, JP;
Tetsuro Minemura, Hitachioota, JP;
Masaya Adachi, Hitachi, JP;
Makoto Tsumura, Hitachi, JP;
Ikuo Hiyama, Hitachi, JP;
Tetsuro Minemura, Hitachioota, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
There is eliminated a fringe pattern produced at the time of incidence of polarized light of a light distribution control element, in which stray light derived from outside unnecessary light in a liquid crystal display apparatus or the like can be effectively reduced, and bright, wide viewing angle characteristics are achieved as viewed at any angle by an observer. In the light distribution control element () constituted of a transparent base member (), an array of a plurality of micro-lenses (transparent beads) densely arranged on the transparent base member and a light absorbing layer having very small opening portions substantially at focal positions of the micro-lenses, the transparent base member is constituted of a transparent body which is substantially isotropic optically or a transparent body having uniaxial optical anisotropy.