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:
Nov. 26, 2019
Filed:
Mar. 20, 2017
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Hyun-Jin Shim, Daejeon, KR;
Chang-Hee Lee, Daejeon, KR;
Byung-Kook Choi, Daejeon, KR;
Jun-Bo Choi, Daejeon, KR;
Du-Sun Hwang, Daejeon, KR;
Assignee:
LG Chem, Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 4/02 (2006.01); F21V 8/00 (2006.01); G02B 6/12 (2006.01); C03C 3/091 (2006.01); G02F 1/13357 (2006.01);
U.S. Cl.
CPC ...
G02B 6/12 (2013.01); C03C 3/091 (2013.01); C03C 4/02 (2013.01); G02B 6/0011 (2013.01); G02B 6/0065 (2013.01); G02F 1/1336 (2013.01); B32B 2457/202 (2013.01); G02B 6/0055 (2013.01); G02B 2006/12038 (2013.01);
Abstract
A glass light-guide plate having a small color difference and a manufacturing method thereof are provided. The light-guide plate includes glass containing 70 to 85 wt % of SiO, 5 to 20 wt % of BO, 0 to 5 wt % of AlO, 1 to 7 wt % of RO (here, R is at least one of Li, Na, and K), 0 to 0.005 wt % of FeO, and less than 0.002 wt % of a transition metal oxide for adjusting a color difference.