Invention Grant
- Patent Title: Cholesteric liquid crystal reflective polarizing plate and liquid crystal display including the same
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Application No.: US14726313Application Date: 2015-05-29
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Publication No.: US10216040B2Publication Date: 2019-02-26
- Inventor: Ji Hye Kim , Kwang Hyun Kim , Sang Jae Kim , Teck Soo Kim , Gwan Young Na , Hyoung Joo Lee , Seon Ah Cho , Hyo Sung Hong
- Applicant: SAMSUNG DISPLAY CO., LTD.
- Applicant Address: KR Yongin, Gyeonggi-Do
- Assignee: SAMSUNG DISPLAY CO., LTD.
- Current Assignee: SAMSUNG DISPLAY CO., LTD.
- Current Assignee Address: KR Yongin, Gyeonggi-Do
- Agency: F. Chau & Associates, LLC
- Priority: KR10-2015-0017116 20150204
- Main IPC: G02F1/1335
- IPC: G02F1/1335 ; G02F1/13363 ; G02B5/30

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.
Public/Granted literature
- US20160223730A1 CHOLESTERIC LIQUID CRYSTAL REFLECTIVE POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME Public/Granted day:2016-08-04
Information query
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