Light source control device and method for projection system

A technology of light source control and projection system, which is applied in the parts, projection devices, optics, etc. of TV systems, can solve the problems of wasting time and electricity, and achieve the goal of improving reliability, prolonging life, and shortening the time required for restart. Effect
CN1667499AInactive Publication Date: 2005-09-14LEIJIN ELECTRONIC SHENYANG CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
LEIJIN ELECTRONIC SHENYANG CO LTD
Publication Date
2005-09-14
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a projection system light source control apparatus and method, wherein, the apparatus comprises an main input unit of main power source needed by inputting drive system, a voltage measuring unit, an A / D converter converting voltage measured by voltage measuring unit to digital signal, a microcomputer which changes fan run-on time according to digital signal from A / D converter and controls light source on-off.If last closedown is innormal, the appatatus is able to identify its process and sets different fan run-on time when restarting.
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Description

technical field

[0001] The invention relates to a projection system, in particular to a light source control device and method for the projection system. The light source control device and method provided by the present invention can recognize the previous system state and shorten the start-up time when the system restarts. Background technique

[0002] In recent years, we have ushered in the age of Home Theater. It turns out that projection TVs or other projection devices over 40 inches that can only be seen in companies or public buildings have spread rapidly and entered families. Now, the average household is using a large projection device to watch TV broadcasts.

[0003] Projection equipment and projection TVs used in this area, in order to pursue high brightness and vividness, a large number of liquid crystal displays are used. The development and production of such products for families is increasing rapidly, which is a major trend. The determining factor of the ...

Claims

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