PRIVATE VIDEO PRESENTATION
First Claim
Patent Images
1. A video presentation system, comprising:
- a display surface;
a directional backlight system configured to emit a beam of light from the display surface and to vary a direction in which the beam of light is directed;
a spatial light modulator configured to form an image for display via light from the directional backlight system; and
a controller configured to control the directional backlight system and the spatial light modulator to display a first video content item at a first viewing angle and a second video content item at a second viewing angle.
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Abstract
Embodiments are disclosed that relate to private video presentation. For example, one disclosed embodiment provides a system including a display surface, a directional backlight system configured to emit a beam of light from the display surface and to vary a direction in which the beam of light is directed, and a spatial light modulator configured to form an image for display via the directional backlight system. The system further includes a controller configured to control the optical system and the light modulator to display a first video content item at a first viewing angle and a second video content item at a second viewing angle.
164 Citations
20 Claims
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1. A video presentation system, comprising:
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a display surface; a directional backlight system configured to emit a beam of light from the display surface and to vary a direction in which the beam of light is directed; a spatial light modulator configured to form an image for display via light from the directional backlight system; and a controller configured to control the directional backlight system and the spatial light modulator to display a first video content item at a first viewing angle and a second video content item at a second viewing angle. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A video presentation system, comprising:
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a display surface; a directional backlight system system configured to emit a beam of light from the display surface and to modulate a direction in which the beam of light is directed; a spatial light modulator configured to form an image for display via light from the directional backlight system; a controller configured to control the directional backlight system and the spatial light modulator to display a first video content item at a first viewing angle and a second video content item at a second viewing angle; and a private audio output controllable by the controller to provide a first private audio output corresponding to the first video content item and to provide a second private audio output corresponding to the second video content item. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20)
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17. A method of concurrently providing different audio/video presentations to different viewers via a video presentation system comprising an optical waveguide, a spatial light modulator, and a private audio output system, the optical waveguide comprising a first end, a second end opposite the first end, a collimating end reflector located at the second end, a viewing surface extending between the first end and the second end, a back surface opposing the viewing surface, the method comprising:
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injecting light into the first end of the optical waveguide; delivering the light to the end reflector via total internal reflection; internally reflecting the light off of the end reflector, thereby collimating the light; emitting the light from the viewing surface; varying a location along the first end of the optical waveguide at which light is injected into the optical waveguide; switching images produced by the spatial light modulator between a first video content item and a second video content item in synchronization with varying the location at which light is injected into the optical tide; providing a first audio output corresponding to the first video content item; and providing a second audio output corresponding to the second video content item.
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Specification