Invention Grant
US08547637B2 Optical film composite for brightness enhancement including a birefringent polymer layer
有权
用于亮度增强的光学膜复合材料，包括双折射聚合物层
- Patent Title: Optical film composite for brightness enhancement including a birefringent polymer layer
- Patent Title (中): 用于亮度增强的光学膜复合材料，包括双折射聚合物层
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Application No.: US12159263Application Date: 2006-12-28
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Publication No.: US08547637B2Publication Date: 2013-10-01
- Inventor: Seo-Hern Lee , Myeong-Kyun Kang , Jong-Bok Choi , Yeon-Shin Kim , Byoung-Kyu Kim , Jong-Seo Lee , Chi-Deuk Kim , Dong-Won Chae , Kang-Il Seo
- Applicant: Seo-Hern Lee , Myeong-Kyun Kang , Jong-Bok Choi , Yeon-Shin Kim , Byoung-Kyu Kim , Jong-Seo Lee , Chi-Deuk Kim , Dong-Won Chae , Kang-Il Seo
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Jay R. Pralle; Lisa P. Fulton
- Priority: KR10-2005-0134698 20051230
- International Application: PCT/US2006/049428 WO 20061228
- International Announcement: WO2007/079145 WO 20070712
- Main IPC: G02B5/30
- IPC: G02B5/30
Abstract:
The present invention provides an optical film composite that includes a linear, reflective polarizing film; a first polymeric substrate layer having birefringence, which is placed on the reflective polarizing film; and a second polymeric substrate layer placed beneath the reflective polarizing film, wherein the optical axis of the first polymeric substrate layer is oriented with respect to the transmission axis of the reflective polarizing film to have of 0° to 25° of an angular difference between the axes. The optical film composite can be employed in LCD devices to improve optical performance.
Public/Granted literature
- US20090303589A1 OPTICAL FILM COMPOSITE FOR BRIGHTNESS ENHANCEMENT INCLUDING A BIREFRINGENT POLYMER LAYER Public/Granted day:2009-12-10
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