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. 23, 2021
Filed:
May. 24, 2018
Applicant:
Lg Display Co., Ltd., Seoul, KR;
Inventors:
JinRyun Kim, Seoul, KR;
Youngki Song, Paju-si, KR;
MinSoo Park, Anyang-si, KR;
Eunhee Choi, Goyang-si, KR;
Assignee:
LG Display Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/13 (2006.01); G02F 1/35 (2006.01); G02B 26/02 (2006.01); G02B 5/23 (2006.01); G02F 1/13357 (2006.01);
U.S. Cl.
CPC ...
G02F 1/1323 (2013.01); G02B 26/02 (2013.01); G02F 2001/133626 (2013.01); G02F 2202/14 (2013.01);
Abstract
A viewing angle controlling film, a backlight unit using the same, and a display device using the same are disclosed. The viewing angle controlling film comprises a first area where light transmittance is not converted; and a second area where light transmittance is converted, wherein the second area includes a light-transmittance conversion portion configured to react with light of a predetermined wavelength range to convert the light transmittance and not to react with light of a wavelength range other than the predetermined wavelength range.