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US 2003/0197840 A1Published application
Image display mechanism and image display device
AssigneeHitachi, Ltd.
InventorsMikio Shiraishi, Yasuo Otsuka, Toru Numata
Life of this patent
Estimating the term…
Abstract
In order to prevent dust from sticking to the LCD panel, to prevent the LCD panel from being heated and to suitably adjust the position of the LCD panel, a duct is provided between cooling means for a light source and cooling means for a LCD panel to send cooling air from the LCD panel side to the light source side. Therefore, a light incidence/reflection plane of the LCD panel is disposed in an almost hermetically closed space and an optical path from an integrator lens to the LCD panel is formed in the almost hermetically closed space.
Claims51
An image display mechanism comprising:
- illuminating means;
- projecting means;
- reflection type light valve means having a light incidence/reflection plane;
- and
- cooling means,
- wherein both said reflection type light valve means and said illuminating means share a part of said cooling means.
3 more elements
An image display mechanism comprising:
- illuminating means;
- projecting means;
- reflection type light valve means having a light incidence/reflection plane;
- and
- cooling means,
- wherein said reflection type light valve means is provided with cooling means which is designed specifically therefor and/or shares a part of the cooling means of said illuminating means.
3 more elements
An image display device comprising:
- illuminating means;
- projecting means;
- reflection type light valve means having a light incidence/reflection plane;
- and
- cooling means,
- wherein both said reflection type light valve means and said illuminating means share a part of said cooling means.
3 more elements
An image display device comprising:
- illuminating means;
- projecting means;
- reflection type light valve means having a light incidence/reflection plane;
- and
- cooling means,
- wherein said reflection type light valve means is provided with cooling means which is designed specifically therefor and/or shares a part of the cooling means of said illuminating means.
3 more elements
An image display mechanism comprising:
- illuminating means;
- projecting means;
- reflection type light valve means having a light incidence/reflection plane;
- and
- an almost hermetically closed space shut off from the outside air,
- wherein said illuminating means illuminates said reflection type light valve means and said projecting means projects light reflected by said reflection type light valve means to make a screen image, and wherein said almost hermetically closed space comprises a plurality of structural members and the light incidence/reflection plane of said reflection type light valve means contacts the joints of said plurality of structural members.
3 more elements
An image display mechanism comprising:
- illuminating means;
- projecting means;
- reflection type light valve means having a light incidence/reflection plane;
- an almost hermetically closed space shut off from the outside air;
- and
- position adjusting means provided outside said almost hermetically closed space and for adjusting said reflection type light valve means,
- wherein said illuminating means illuminates said reflection type light valve means and said projecting means projects light reflected by said reflection type light valve means to make a screen image.
4 more elements
An image display mechanism comprising:
- illuminating means;
- projecting means;
- reflection type light valve means having a light incidence/reflection plane;
- an almost hermetically closed space shut off from the outside air;
- and
- position adjusting means provided in a single direction nearly orthogonal to the optical axis of illumination and the optical axis of projection and for adjusting said reflection type light valve means,
- wherein said illuminating means illuminates said reflection type light valve means and said projecting means projects light reflected by said reflection type light valve means to make a screen image, and wherein said almost hermetically closed space comprises a plurality of structural members and the light incidence/reflection plane of said reflection type light valve means contacts the joints of said plurality of structural members.
4 more elements
An image display mechanism comprising:
- illuminating means;
- projecting means;
- and
- reflection type light valve means having a light incidence/reflection plane,
- wherein said illuminating means illuminates said reflection type light valve means and said projecting means projects light reflected by said reflection type light valve means to make a screen image, and wherein a light source of said illuminating means is removably supported and electric connectors of said image display mechanism side for connecting said light source to said image display mechanism are arranged in nearly parallel to a grip of said light source side.
2 more elements
A light source unit employed for an image display mechanism, the light source can be removed from said image display mechanism and is provided with a grip in nearly parallel to electric connectors for connecting said light source to said image display mechanism.
An image display device comprising:
- illuminating means;
- projecting means;
- reflection type light valve means having a light incidence/reflection plane;
- and
- an almost hermetically closed space shut off from the outside air,
- wherein said illuminating means illuminates said reflection type light valve means and said projecting means projects light reflected by said reflection type light valve means to make a screen image, and wherein said almost hermetically closed space comprises a plurality of structural members and the light incidence/reflection plane of said reflection type light valve means contacts the joints of said plurality of structural members.
3 more elements
An image display device comprising:
- illuminating means;
- projecting means;
- reflection type light valve means having a light incidence/reflection plane;
- an almost hermetically closed space shut off from the outside air;
- and
- position adjusting means for adjusting said reflection type light valve means and provided outside said almost hermetically closed space,
- wherein said illuminating means illuminates said reflection type light valve means and said projecting means projects light reflected by said reflection type light valve means to make a screen image.
4 more elements
An image display device comprising:
- illuminating means;
- projecting means;
- reflection type light valve means having a light incidence/reflection plane;
- an almost hermetically closed space shut off from the outside air;
- and
- position adjusting means provided in a single direction nearly orthogonal to the optical axis of illumination and the optical axis of projection and for adjusting said reflection type light valve means,
- wherein said illuminating means illuminates said reflection type light valve means and said projecting means projects light reflected by said reflection type light valve means to make a screen image, and wherein said almost hermetically closed space comprises a plurality of structural members and the light incidence/reflection plane of said reflection type light valve means contacts the joints of said plurality of structural members.
4 more elements
Dependencies are inferred from the claim text.