Single view display
AssigneeSharp Kabushiki Kaisha
InventorsMichel Sagardoyburu, Allan Evans, Alistair Paul Curd, Sumanta Talukdar, Harry Garth Walton, Nathan James Smith
Life of this patent
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Abstract
A single view display of reduced power consumption is provided. The display comprises a display device for displaying the single view and an optical system for concentrating light modulated by the single view into a reduced angular range. A viewer direction determining system determines the direction of a viewer relative to the display and controls the display device and the optical system so that the angular range includes the direction of the viewer.
Claims22
A single view display comprising:
- a display device for displaying a single view;
- an optical system comprising a backlight for illuminating said display device and converging lenses for concentrating light from the backlight and modulated by said single view into a reduced angular range;
- an optical detector for determining a direction of a viewer relative to said display;
- a switchable electro-optic device for directing light from the optical system into the reduced angular range;
- and
- a control device for controlling the switchable electro-optic device so that said reduced angular range includes said determined direction.
A display method for using a display to obtain reduced power consumption, said method comprising the steps of:
- displaying in a display a single view;
- concentrating light in an optical system which is modulated by said single view into a reduced angular range, said optical system including a backlight for illuminating said display device and converging lenses;
- determining with an optical detector a direction of a viewer relative to said display;
- directing light from the optical system into the reduced angular range with a switchable electro-optic device;
- and
- controlling said switchable electro-optic device so that said reduced angular range includes said determined direction, wherein
- the reduced angular range has reduced power consumption.
Dependencies are inferred from the claim text.