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:
Oct. 29, 2019
Filed:
May. 18, 2018
Applicant:
Samsung Display Co. Ltd., Yongin-si, KR;
Inventors:
Assignee:
SAMSUNG DISPLAY CO. LTD., Gyeonggi-Do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/10 (2006.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0035 (2013.01); G02B 6/0025 (2013.01); G02B 6/0036 (2013.01); G02B 6/0091 (2013.01); G02B 6/0038 (2013.01); G02B 6/0055 (2013.01); G02B 6/0073 (2013.01);
Abstract
A backlight unit includes: a light source unit including a point light source; and a light guide plate disposed on a path of light emitted from the light source unit, where a plurality of split patterns is defined in the light guide plate. The plurality of split patterns transmits a part of the light emitted from the light source unit and reflects a remaining part thereof, and the plurality of split patterns is concentrically arranged on the light guide plate and around the light source unit.