Patent ID: 7270423
Filing Date: 2007-09-18
Classification: G02B,G03B,G06F

Abstract:
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; 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; 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.