Invention Grant
- Patent Title: Display apparatus and projection type lighting apparatus therefor
- Patent Title (中): 显示装置及投影型照明装置
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Application No.: US12030899Application Date: 2008-02-14
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Publication No.: US07901097B2Publication Date: 2011-03-08
- Inventor: Koji Hirata , Masahiko Yatsu , Takanori Hisada , Hidehiro Ikeda
- Applicant: Koji Hirata , Masahiko Yatsu , Takanori Hisada , Hidehiro Ikeda
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2007-048335 20070228
- Main IPC: G03B21/20
- IPC: G03B21/20
Abstract:
A display apparatus comprises a lighting unit for emitting a light, and a first light modulation unit for forming an image through modulation of the light from a light source unit, wherein the lighting unit includes a light source for emitting the light, a second light modulation unit for modulating the light from the light source, being smaller than the first light modulation unit for modulating the light from the light source, and a projection unit for projecting the light modulated through the second light modulation unit, enlargely, upon the first light modulation unit for use of display.
Public/Granted literature
- US20090103060A1 DISPLAY APPARATUS AND PROJECTION TYPE LIGHTING APPARATUS THEREFOR Public/Granted day:2009-04-23
Information query
