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:
Mar. 06, 2018
Filed:
Jun. 01, 2015
Lg Display Co., Ltd., Seoul, KR;
Bayer Materialscience Ag, Leverkusen, DE;
Hyungseok Bang, Goyang-si, KR;
Seungman Ryu, Paju-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
The present disclosure relates to a thin film type controlled viewing window back light unit and a thin flat type Controlled Viewing window Display using the same. The present disclosure suggests a thin film type back light unit which can include: a base film having a width and a length, and including a high refractive film and a low refractive film stacked on the high refractive film; an incident pattern disposed at one side of a bottom surface of the base film; a reflective pattern disposed at an opposite side apart from the one side with the length of the bottom surface of the base film, and covering the width of the opposite side; a light radiating pattern disposed on an upper surface of the base film; a holographic film for controlling a viewing-window disposed on the light radiating pattern; and a light source being apart from the incident pattern, and providing an incident light to the incident pattern.