Projection display
First Claim
1. A projection display, comprising:
- a transmission screen having a light transmission property and including a rear layer having light directivity on the rear;
a projector that projects projection light;
a mirror to introduce projection light from the projector into the rear of the transmission screen;
a frame to support the transmission screen, the projector, and the mirror; and
a support mechanism to support the projector so that the projector can be attached to and detached from the frame, the transmission screen, the projector, and the mirror being exposed to the outside, to project light in a rear mode, the projection light introduced by the mirror being allowed to pass through from the rear with the projector attached to the frame to display an image on the transmission screen, to project light in a front mode, the projection light from the projector being projected onto a reflection screen with the projector detached from the frame, thereby displaying an image on the reflection screen.
1 Assignment
0 Petitions
Accused Products
Abstract
To provide a projection display that can easily switch between rear and front projection modes with a transmission screen, a projector, and a mirror exposed to the outside, a projection display has a projector to project projection light applied to a display image, a mirror to introduce the projection light from the projector, a screen to allow the projection light introduced by the mirror to pass through from the rear to project light in a rear mode, and a frame to hold the projector and the screen. The projection display has the screen, the projector, and the mirror exposed to the outside, and the projector is installed so that it can be attached to and detached from the frame.
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Citations
13 Claims
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1. A projection display, comprising:
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a transmission screen having a light transmission property and including a rear layer having light directivity on the rear;
a projector that projects projection light;
a mirror to introduce projection light from the projector into the rear of the transmission screen;
a frame to support the transmission screen, the projector, and the mirror; and
a support mechanism to support the projector so that the projector can be attached to and detached from the frame, the transmission screen, the projector, and the mirror being exposed to the outside, to project light in a rear mode, the projection light introduced by the mirror being allowed to pass through from the rear with the projector attached to the frame to display an image on the transmission screen, to project light in a front mode, the projection light from the projector being projected onto a reflection screen with the projector detached from the frame, thereby displaying an image on the reflection screen. - View Dependent Claims (2, 4, 5, 6, 7, 8, 12, 13)
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3. A projection display, comprising:
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a transmission screen having a light transmission property and including a rear layer having light directivity on the rear;
a projector that projects projection light;
a mirror to introduce projection light from the into the rear of the transmission screen;
a frame to support the transmission screen, the projector, and the mirror; and
a front/rear switch to switch between rear and front projection modes in which to project light in the rear mode, the projection light introduced by the mirror is allowed to pass through from the rear to display an image on the transmission screen and to project light in the front mode, the projection light from the projector is projected onto a reflection screen, thereby displaying an image on the reflection screen, the transmission screen, the projector, and the mirror being exposed to the outside, and a screen switch to switch between a mode in which the transmission screen is positioned on an optical path of the projection light in the rear mode and a mode in which the transmission screen is placed out of the optical path of the projection light in the front mode.
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9. A projection display, comprising:
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a transmission screen having a light transmission property and including a rear layer having light directivity on the rear;
a projector that projects projection light;
a mirror to introduce projection light from the projector into the rear of the transmission screen; and
a frame to support the transmission screen, the projector, and the mirror, the transmission screen, the projector, and the mirror being exposed to the outside, a mirror switch to switch between a mode in which the mirror is positioned on an optical path of the projection light and a mode in which the mirror is placed out of the optical path of the projection light, wherein to project light in a rear mode, the mode in which the mirror is positioned on the optical path of the projection light being set by the mirror switch to allow the projection light introduced by the mirror to pass through from the rear to display an image on the transmission screen, and to project light in a front mode, the mode in which the mirror is placed out of the optical path of the projection light being set by the mirror switch to project the projection light from the projector onto a reflection screen, thereby displaying an image on the reflection screen. - View Dependent Claims (10, 11)
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Specification