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:
Dec. 20, 2016
Filed:
Dec. 30, 2014
Lg Display Co., Ltd., Seoul, KR;
Bayer Materialscience Ag, Leverkusen, DE;
Hyungseok Bang, Goyang-si, KR;
Friedrich-Karl Bruder, Krefeld, DE;
Thomas Peter Fäcke, Leverkusen, DE;
Rainer Hagen, Leverkusen, DE;
Günther Walze, Köln, DE;
LG DISPLAY CO., LTD., Seoul, KR;
COVESTRO DEUTSCHLAND AG, Leverkusen, DE;
Abstract
Disclosed is a flat panel display device having a display panel and a back light unit in which the back light unit may, for example, include a base film having a width and a length and including a high refractive film and a low refractive film on the high refractive film; a first incident pattern at a one side of a first surface of the base film; a reflective pattern on the first surface of the base film at an opposite side spaced apart from the one side with a distance substantially corresponding to the length of the first surface of the base film and substantially covering the width of the first surface of the base film; a light radiating pattern on a second surface of the base film; and a light source spaced apart from the first incident pattern with a first focal length and providing an incident light to the first incident pattern.