Invention Grant
- Patent Title: Higher transmission light control film
- Patent Title (中): 高透射光控膜
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Application No.: US12682640Application Date: 2008-10-13
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Publication No.: US09335449B2Publication Date: 2016-05-10
- Inventor: Gary E. Gaides , Kenneth A. Epstein
- Applicant: Gary E. Gaides , Kenneth A. Epstein
- 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 Yen Tong Florczak
- International Application: PCT/US2008/079725 WO 20081013
- International Announcement: WO2009/052052 WO 20090423
- Main IPC: G02F1/1335
- IPC: G02F1/1335 ; G02B5/22 ; G02B5/02 ; G02B5/30

Abstract:
A light control film, and light collimating assemblies and liquid crystal displays incorporating such light control films are described. The light control film includes alternating transmissive and absorptive regions, where the refractive index of each transmissive region is greater than the refractive index of each absorptive region. The absorptive regions form interfaces at angles that are close to the perpendicular to the light control film. A portion of the incident light intercepting the absorptive region undergoes Total Internal Reflection, and is transmitted through the film. The axial brightness of light passing through the film is increased, the brightness is more uniform within the viewing angle, and the viewing cutoff angle is sharpened.
Public/Granted literature
- US20100214506A1 HIGHER TRANSMISSION LIGHT CONTROL FILM Public/Granted day:2010-08-26
Information query
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