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:
Nov. 20, 2007
Filed:
Mar. 29, 2004
Applicants:
Takahiko Ueda, Ibaraki, JP;
Hiroshi Koyama, Ibaraki, JP;
Tomotsugu Takahashi, Tokyo, JP;
Inventors:
Assignee:
Yupo Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a semitransparent reflector having a whole light transmittance (T) of 10-80%, a whole light reflectance (R) of 20-90%, (T+R) of 80-100%, and (R−Rd) of 8-30% in which Ris the whole light diffusion reflectance. When installed in a display device, the semitransparent reflector ensures efficient light transmission and reflection, and attains a high transmittance and a high reflectance of the display device, therefore significantly improving the letter visibility of the device.