Invention Grant
- Patent Title: Optical compensation film
- Patent Title (中): 光学补偿膜
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Application No.: US13690913Application Date: 2012-11-30
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Publication No.: US09188786B2Publication Date: 2015-11-17
- Inventor: Moon Yeon Lee , Hee Kyung Kim , Kyu Yeol In , Jae Hyun Kim , Hyung Jun Kim , Won Cheol Jung , Hyeon Ho Choi , Woo Joong Kim , Kyoung Ah Oh
- Applicant: SAMSUNG ELECTRONICS CO., LTD. , CHEIL INDUSTRIES INC.
- Applicant Address: KR KR
- Assignee: SAMSUNG ELECTRONICS CO., LTD.,CHEIL INDUSTRIES INC.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.,CHEIL INDUSTRIES INC.
- Current Assignee Address: KR KR
- Agency: Cantor Colburn LLP
- Priority: KR10-2011-0128645 20111202
- Main IPC: G02B5/30
- IPC: G02B5/30 ; G02B27/28 ; G02F1/1335 ; G02B27/12 ; G02B27/10 ; G02B27/26 ; G02B5/32 ; G02F1/13363 ; G02B27/00 ; B32B27/32 ; B32B27/08 ; B32B27/30 ; G09G3/36

Abstract:
An optical compensation film includes: a first layer having positive birefringence; a second layer on the first layer and having negative birefringence; and a third layer on the second layer and having positive birefringence. A retardation value of the optical compensation film for incident light having a wavelength of about 550 nm is about 135 nm to about 145 nm, and a ratio of a thickness of the first layer or of the third layer to a thickness of the second layer is about 1.1 to 2.2.
Public/Granted literature
- US20130141785A1 OPTICAL COMPENSATION FILM Public/Granted day:2013-06-06
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