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. 26, 2019
Filed:
May. 29, 2015
Cholesteric liquid crystal reflective polarizing plate and liquid crystal display including the same
Samsung Display Co., Ltd., Yongin, Gyeonggi-do, KR;
Ji Hye Kim, Hwaseong-si, KR;
Kwang Hyun Kim, Gunpo-si, KR;
Sang Jae Kim, Seoul, KR;
Teck Soo Kim, Seongnam-si, KR;
Gwan Young Na, Yongin-si, KR;
Hyoung Joo Lee, Seoul, KR;
Seon Ah Cho, Busan, KR;
Hyo Sung Hong, Suwon-si, KR;
SAMSUNG DISPLAY CO., LTD., Yongin, Gyeonggi-Do, KR;
Abstract
A cholesteric liquid crystal reflective polarizing plate includes a cholesteric liquid crystal layer and a λ/4 compensation layer disposed on the cholesteric liquid crystal layer. The cholesteric liquid crystal layer includes a first left-handed circularly polarizing portion which extends in a first direction that include a left-handed cholesteric liquid crystal material, and a first right-handed circularly polarizing portion which extends in the first direction adjacent to first left-handed circularly polarizing portion and that includes a right-handed cholesteric liquid crystal material. The λ/4 compensation layer includes a first λ/4 compensation pattern which extends in the first direction and overlapping the first left-handed circularly polarizing portion, and a second λ/4 compensation pattern which extends in the first direction adjacent to the first λ/4 compensation pattern and overlaps the first right-handed circularly polarizing portion. The first λ/4 compensation pattern and the second λ/4 compensation pattern have slow axes perpendicular to each other.