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:
Aug. 02, 2011
Filed:
Aug. 25, 2005
Applicants:
Yukio Miyaki, Kanagawa, JP;
Hiroyuki Kiso, Miyagi, JP;
Tsutomu Nagahama, Miyagi, JP;
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light-diffusing film and screen including same are provided. The light-diffusing film having anisotropy in the diffusion angle includes a translucent support, and a translucent resin layer having irregularities on the surface thereof and being provided on the translucent support. In the light-diffusing film, the maximal value of the loss tangent (tan δ) determined from a dynamic viscoelasticity of the light-diffusing film lies in a temperature range of 0° C. to 60° C.