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:
Jan. 15, 2019
Filed:
Jun. 24, 2013
Lms Co., Ltd, Pyeongtaek, KR;
Jee Hong Min, Seongnam, KR;
Young Il Kim, Seongnam, KR;
Sung Sik Cho, Suwon, KR;
Woo Jong Lee, Osan, KR;
Tae Jun Lee, Osan, KR;
Hee Jeong Kim, Osan, KR;
Joon Hwan Hwang, Seoul, KR;
LMS Co., LTD., Pyeongtaek, KR;
Abstract
A laminated optical sheet module includes: an upper optical sheet having a first structure pattern in which a first unit light collector having an inclined surface, the cross-section area of which decrease when progressing upwardly, is continuously repeated; and a lower optical sheet laminated beneath the upper optical sheet and having a second structure pattern in which a second unit light collector having an inclined surface, the cross-sectional area of which decreases when progressing upwardly, is continuously repeated. The vertical distance between the lowermost portion and the uppermost portion of the second unit collector is greater than the vertical distance between the lowermost portion and the uppermost portion of the first unit collector. The surface area of the inclined surface of the second unit collector is relatively larger than the surface area of the inclined surface of the first unit collector.