PROJECTION DISPLAY DEVICE
First Claim
1. A projection display device comprising:
- a light source unit configured to emit lights;
a light combining unit configured to generate a leakage light from the lights emitted by the light source unit and to selectively combine the lights from the light source unit;
an image projection unit configured to project an image using the combined light from the light combining unit; and
a virtual input unit configured to project an input unit image using the leakage light from the light combining unit.
1 Assignment
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Accused Products
Abstract
A projection display device (100) capable of providing a virtual keyboard function to the user, using a light source of a pico projector, is discussed. According to an embodiment, the projection display device includes a light source unit (110) configured to emit lights; a light combining unit (120) configured to generate a leakage light from the lights emitted by the light source (110) unit and to selectively combine the lights from the light source unit (110); an image projection unit (130) configured to project an image using the combined light from the light combining unit (120); and a virtual input unit (140) configured to project an input unit image (150) using the leakage light from the light combining unit (120).
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Citations
20 Claims
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1. A projection display device comprising:
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a light source unit configured to emit lights; a light combining unit configured to generate a leakage light from the lights emitted by the light source unit and to selectively combine the lights from the light source unit; an image projection unit configured to project an image using the combined light from the light combining unit; and a virtual input unit configured to project an input unit image using the leakage light from the light combining unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A projection display device comprising:
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first to third light sources configured to emit first to third lights, respectively; an image projection unit configured to produce an image using the lights emitted from the light sources, and to project the produced image onto a screen; a color synthesizing unit configured to selectively transmit or reflect each of the first to third lights, and to generate a leakage light from at least one of the first to third lights; and a virtual input unit configured to project an input unit image using the leakage light leaked from the color synthesizing unit. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification