Color projection display device
First Claim
Patent Images
1. A color projection display device, comprising:
- a light source;
a micro-mirror unit; and
a projection lens;
wherein the micro-mirror unit performs switching between an on state and an off state according to a driving signal, the micro-mirror unit reflecting light beams emitted from the light source to the projection lens in the on state, and not reflecting said light beams to the projection lens in the off state, the projection lens enlarging and displaying the light beams reflected by the micro-mirror on a screen for generating images thereon.
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Abstract
A color projection display device (3) includes a light source (30), a light modulation unit (32), a projection lens (34) and a screen (38). The light modulation unit includes a micro-mirror array (325) having a red micro-mirror, a green micro-mirror and a blue micro-mirror. Each micro-mirror functions as a color filter, and is capable of reflecting light beams emitted from the light source to the projection lens. A driver circuit offers a digital signal to the micro-mirror array to maintain each micro-mirror thereof is in an on state or in an off state. The projection lens projects the light beams reflected by the light modulation unit onto the screen.
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Citations
11 Claims
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1. A color projection display device, comprising:
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a light source;
a micro-mirror unit; and
a projection lens;
wherein the micro-mirror unit performs switching between an on state and an off state according to a driving signal, the micro-mirror unit reflecting light beams emitted from the light source to the projection lens in the on state, and not reflecting said light beams to the projection lens in the off state, the projection lens enlarging and displaying the light beams reflected by the micro-mirror on a screen for generating images thereon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 10)
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8. A color projection display device, comprising:
- a light source, a light modulation unit for modulating colors of light beams emitted from the light source, and a projection lens for projecting the light beams reflected by the light modulation unit onto a screen;
the light modulation unit comprising;
a micro-mirror array including a red micro-mirror, a green micro-mirror and a blue micro-mirror, each micro-mirror functioning as a color filter and capable of reflecting the light beams emitted from the light source to the projection lens; and
a driver circuit for providing a digital signal to the micro-mirror array to maintain each micro-mirror thereof in an on state or in an off state. - View Dependent Claims (9)
- a light source, a light modulation unit for modulating colors of light beams emitted from the light source, and a projection lens for projecting the light beams reflected by the light modulation unit onto a screen;
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11. A color projection display device, comprising:
- a light source, a light modulation unit for modulating colors of light beams emitted from the light source, and a projection lens for projecting the light beams reflected by the light modulation unit onto a screen;
the light modulation unit comprising;
a micro-mirror array including at least three micro-mirrors each characterized with one single original color, and functioning as a color filter and being capable of reflecting the light beams emitted from the light source to the projection lens; and
a driver circuit for providing a digital signal to the micro-mirror array to maintain each micro-mirror thereof in an on state or in an off state;
wherein through an on-off state change of each of said micro-mirror, a combination of the light beams defines at least 23 alternatives.
- a light source, a light modulation unit for modulating colors of light beams emitted from the light source, and a projection lens for projecting the light beams reflected by the light modulation unit onto a screen;
Specification