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AssigneeSharp Kabushiki Kaisha
InventorsJonathan Mather, Neil Barratt, Diana U. Kean, Emma J. Walton, Grant Bourhill, Thomas Wynne Powell
Estimating the term…
A directional backlight, a multiple view display and a multi-direction display A multiple view display (18) comprises a directional display device (19) for displaying a first image or sequence of images so as to be mainly visible from a first range of directions relative to the device and for simultaneously displaying a second image or sequence of images so as to be mainly visible from a second range of directions relative to the device different from the first range. The display (18) further comprises a directional backlight (20) for directing light through the display device (19) at least mainly in the first and second ranges. Since the directional backlight (20) directs light through the display device (19) at least mainly in the first and second ranges, the display provides users located in the first and second ranges with images of greater intensity than a conventional display. The backlight may be arranged to direct substantially no light in at least part of a third range of directions that lies between the first range of directions and the second range of directions. This provides a ‘black window’ between the first and second ranges in which the intensity of the display is lower than in other ranges. The intensity of the display in the black window is possibly zero, or close to zero, so that an observer located in this window will not perceive an image.
A directional backlight comprising a light source for emitting light that is at least partially collimated, and an optical arrangement for splitting the light from the light source and directing the light from the light source simultaneously in at least mainly a first range of directions and a second range of directions different from the first range of directions;
A directional backlight comprising a light source, and an optical arrangement for splitting the light from the light source and directing the light from the light source at least mainly in a first range of directions and a second range of directions, the first and second range of directions being on a same side of the optical arrangement, wherein light mainly directed in the second range of directions is non-parallel to and non-overlapping with light mainly directed in the first range of directions,
A multi-directional two-dimensional display comprising:
Dependencies are inferred from the claim text.