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. 20, 2006
Filed:
Apr. 11, 2002
Yoshihiro Katsu, Sagamihara, JP;
Akiko Nishikai, Yokohama, JP;
Michikazu Noguchi, Sagamihara, JP;
Masaru Suzuki, Yokohama, JP;
Yoshihiro Katsu, Sagamihara, JP;
Akiko Nishikai, Yokohama, JP;
Michikazu Noguchi, Sagamihara, JP;
Masaru Suzuki, Yokohama, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A light source device and display device capable of suppressing occurrence of unevenness in luminance therefrom by using a light guide with concave or convex structural portions in combination with a reflection layer disposed adjacent the light guide and including a plurality of spacers for strategically positioning the layer's reflecting surface from the light guide. Light within the light guide is both reflected from the guide (e.g., to an adjacent display panel) or emitted onto the reflecting surface and passed back through the guide for eventual emission (e.g., to the same display panel). A reflection sheet including a base sheet, reflection layer and structural portions is also provided.