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Patent Searching and Data


Title:
PROJECTION DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/186035
Kind Code:
A1
Abstract:
The present invention provides a projection display device in which size is reduced while the heat radiating function is preserved. This projection display device is provided with a first substrate (42) on which a red light source is mounted, a second substrate (44) on which a green light source is mounted, a third substrate (45) on which a blue light source is mounted, a housing (40) to which the first through third substrates are attached, an optical member accommodated inside the housing, and a light modulating element (30); light emitted inside the housing from the red light source, the green light source, and the blue light source being distributed by the optical member, the distributed light being converted to a prescribed display image by the light modulating element, and the light being projected outside the housing, wherein the projecting display device is characterized in that the first through third substrates are made of metal or of filler-containing plastic compounded with a filler having high thermal conductivity, and the housing is made of metal or a filler-containing plastic compounded a filler having high thermal conductivity.

Inventors:
KOIIDA AKINORI
TAKAHASHI YUICHI
HIROKAWA TAKURO
HATANO TAKAYUKI
Application Number:
JP2016/064321
Publication Date:
November 24, 2016
Filing Date:
May 13, 2016
Export Citation:
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Assignee:
NIPPON SEIKI CO LTD (JP)
International Classes:
G03B21/16; F21S2/00; F21V15/01; F21V29/503; F21V29/507; F21V29/70; F21V29/87; F21V29/89; H04N9/31; G03B21/00
Domestic Patent References:
WO2008069143A12008-06-12
Foreign References:
JP2008090163A2008-04-17
JP2009186701A2009-08-20
Other References:
See also references of EP 3299886A4
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