Invention Grant
- Patent Title: Hollow backlight with structured films
- Patent Title (中): 空心背光与结构薄膜
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Application No.: US12866094Application Date: 2009-02-06
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Publication No.: US08848132B2Publication Date: 2014-09-30
- Inventor: Mark B. O'Neill , Shandon D. Hart , Kenneth A. Epstein , David G. Freier , David J. Lamb
- Applicant: Mark B. O'Neill , Shandon D. Hart , Kenneth A. Epstein , David G. Freier , David J. Lamb
- 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
- International Application: PCT/US2009/033356 WO 20090206
- International Announcement: WO2009/100307 WO 20090813
- Main IPC: G02F1/1335
- IPC: G02F1/1335 ; F21V7/04
Abstract:
A backlight (120) that includes a front reflector (130) and a back reflector (160) that form a hollow light recycling cavity (162) having an output surface (164) is disclosed. The front reflector includes at least four directional recycling films (132). The backlight also includes a semi-specular diffuser disposed between the front reflector and the back reflector, and one or more light sources (166) disposed to emit light into the light recycling cavity.
Public/Granted literature
- US20110051047A1 HOLLOW BACKLIGHT WITH STRUCTURED FILMS Public/Granted day:2011-03-03
Information query
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