Display device and method for starting up at a low temperature
First Claim
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1. A projection device for starting up at a low temperature, comprising:
- at least a lamp for raising an environmental temperature in the projection device and also acting as a projecting light source of the projection device;
a temperature detecting unit for detecting the environmental temperature in the projection device and generating a temperature signal;
at least a fan for raising the environmental temperature in the projection device; and
a control unit for receiving the temperature signal, starting up the lamp and the fan prior to the temperature signal indicating that the environmental temperature has reached a starting-up temperature, and starting up the projection device when, or after, the temperature signal indicates that the environmental temperature has reached a starting-up temperature of the projection device.
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Abstract
A display device and a method for starting up at a low temperature utilizing a heating unit of the display device or an external heating unit to increase the environmental temperature of the display device are disclosed. After the environmental temperature inside the display device reaches a starting-up temperature, the display device can be started up in the low-temperature environment.
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Citations
10 Claims
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1. A projection device for starting up at a low temperature, comprising:
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at least a lamp for raising an environmental temperature in the projection device and also acting as a projecting light source of the projection device; a temperature detecting unit for detecting the environmental temperature in the projection device and generating a temperature signal; at least a fan for raising the environmental temperature in the projection device; and a control unit for receiving the temperature signal, starting up the lamp and the fan prior to the temperature signal indicating that the environmental temperature has reached a starting-up temperature, and starting up the projection device when, or after, the temperature signal indicates that the environmental temperature has reached a starting-up temperature of the projection device. - View Dependent Claims (2, 3, 4)
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5. A method for starting up a projection device at a low temperature, comprising the steps of:
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starting up a power supply of the projection device; starting up at least a lamp of the projection device for raising an environmental temperature in the projection device; providing at least a fan for raising the environmental temperature in the projection device;
wherein the lamp and the fan are started up prior to a temperature signal indicating that the environmental temperature has reached a starting-up temperature;starting up a temperature detecting unit of the projection device; using the temperature detecting unit to detect the environmental temperature; and starting up the projection device when the environmental temperature is higher than the starting-up temperature of the projection device. - View Dependent Claims (6, 7, 8, 9, 10)
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Specification