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:
Feb. 07, 2017
Filed:
Mar. 26, 2014
Applicant:
Cheil Industries Inc., Gumi-si, Gyeongsangbuk-do, KR;
Inventors:
Mun Bo Ko, Uiwang-si, KR;
Ki Ho Park, Uiwang-si, KR;
Assignee:
SAMSUNG SDI CO., LTD., Yongin-si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01); H01L 51/52 (2006.01);
U.S. Cl.
CPC ...
G02B 5/3083 (2013.01); H01L 51/5281 (2013.01); G02B 5/3025 (2013.01);
Abstract
A polarizing plate for an OLED includes a polarizer, a protective film on an upper side of the polarizer, and a stack structure of a λ/4 reverse dispersion retardation film and a positive C plate on a lower side of the polarizer. An optical display includes the polarizing plate. The polarizing plate minimizes the difference in retardation at all lateral viewing angles, and can therefore reduce or suppress lateral color shift causing the viewer to see different colors, depending on the lateral viewing angle.