Invention Grant
- Patent Title: Compensation film, and optical film and display device including the same
-
Application No.: US14712662Application Date: 2015-05-14
-
Publication No.: US10067277B2Publication Date: 2018-09-04
- Inventor: Hyung Jun Kim , Ji-Hoon Lee , Hye Young Kong , Jong Hoon Won , Myung Sup Jung
- Applicant: Samsung Electronics Co., Ltd. , SAMSUNG SDI CO., LTD.
- Applicant Address: KR Gyeonggi-Do KR Gyeonggi-Do
- Assignee: SAMSUNG ELECTRONICS CO., LTD.,SAMSUNG SDI CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.,SAMSUNG SDI CO., LTD.
- Current Assignee Address: KR Gyeonggi-Do KR Gyeonggi-Do
- Agency: Cantor Colburn LLP
- Priority: KR10-2014-0169674 20141201
- Main IPC: G02B5/30
- IPC: G02B5/30 ; H01L51/52 ; G02F1/13363

Abstract:
A compensation film includes a first retardation layer comprising a polymer having negative birefringence, and a second retardation layer comprising a polymer having negative birefringence, where the first retardation layer has an in-plane retardation (Re1) in a range of about 180 nanometers to about 300 nanometers for incident light having a wavelength of about 550 nanometers, the second retardation layer has an in-plane retardation (Re2) in a range of about 60 nanometers to about 170 nanometers for the incident light having the wavelength of about 550 nanometers, and the entire in-plane retardation (Re0) of the first retardation layer and the second retardation layer for incident light having wavelengths of about 450 nanometers and about 550 nanometers satisfies the following inequation: Re0 (450 nm)
Public/Granted literature
- US20160154159A1 COMPENSATION FILM, AND OPTICAL FILM AND DISPLAY DEVICE INCLUDING THE SAME Public/Granted day:2016-06-02
Information query