Patent ID: 8979274
Filing Date: 2015-03-17
Classification: G03B,H04N

Abstract:
1. A display device, comprising: a light source configured to emit light; an optical modulator configured to (a) modulate light from the light source based on a picture signal, and (b) emit modulated light as a picture light; a direct-view display section configured to display an image on a display screen based on the picture light; a projection system configured to project an image on a projection screen based on the picture light; an optical member configured to direct the picture light from the optical modulator toward at least one of the direct-view display section and the projection system; a switch (a) that controls the direction of the picture light by the optical member, and (b) switches between a direct-view display mode, a projection display mode, a first two-way display mode allowing an identical image to be displayed in the direct-view screen and the projection display screen, and a second two-way display mode allowing different images to be displayed in the direct-view screen and the projection display screen, and a controller (a) comprising a polarization controller configured to polarize the picture light and a polarized beam splitter configured to direct the picture light from the polarization controller toward the direct-view display section or the projection optical system or both according to the polarization state of the picture light and (b) configured to control the direction of the picture light in response to the switch and the polarization controller in order to switch between the direct-view display mode, the projection display mode, and the first and second two-way display modes, wherein, the second two-way display mode comprises (a) a first period where a first period picture light from the optical modulator is polarized in a first state by the polarization controller, and (b) a second period where a second period picture light from the optical modulator is polarized in a second state by the polarization controller.