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:
May. 12, 2009
Filed:
Apr. 18, 2007
Xiang-dong MI, Rochester, NY (US);
Richard D. Bomba, Rochester, NY (US);
Robert P. Bourdelais, Pittsford, NY (US);
Michael L. Ferranti, Holley, NY (US);
Jehuda Greener, Rochester, NY (US);
Louis P. Harasta, Jr., Webster, NY (US);
Herong Lei, Webster, NY (US);
Stephen C. Meissner, West Henrietta, NY (US);
Steven J. Neerbasch, Rochester, NY (US);
Robert L. Walton, Fairport, NY (US);
John M. Palmeri, Hamlin, NY (US);
Tomohiro Ishikawa, Evanston, IL (US);
Xiang-Dong Mi, Rochester, NY (US);
Richard D. Bomba, Rochester, NY (US);
Robert P. Bourdelais, Pittsford, NY (US);
Michael L. Ferranti, Holley, NY (US);
Jehuda Greener, Rochester, NY (US);
Louis P. Harasta, Jr., Webster, NY (US);
Herong Lei, Webster, NY (US);
Stephen C. Meissner, West Henrietta, NY (US);
Steven J. Neerbasch, Rochester, NY (US);
Robert L. Walton, Fairport, NY (US);
John M. Palmeri, Hamlin, NY (US);
Tomohiro Ishikawa, Evanston, IL (US);
SKC Haas Display Films Co., Ltd., Choongchungnamdo, KR;
Abstract
A backlight device for a display comprising (1) a side-lit light source, (2) a light guide plate and (3) a turning film comprising a light entry and a light exit surface comprising lenticular elements on the exit surface and prismatic structures on the entry surface, wherein the average values of the parameters of the features and the thickness of the film are selected to provide a peak output angle of ±10° from normal to the light exit surface of the light guide plate and an optical gain of at least 1.25. Also disclosed are methods of making the turning film and a display incorporating the backlight.