发明名称 |
METHOD AND APPARATUS FOR CONTROLLING VISUAL ENHANCEMENT OF LIGHTING DEVICES |
摘要 |
The disclosed embodiments provide a method and apparatus for visual enhancement of liquid crystal displays. A microprocessor or embedded microcontroller associated with visual enhancement circuit modules allows a single inverter to control the intensity of illumination for an array of multiple CCFLs. The microcontroller continuously senses the operating currents of every lamp and adjusts for variations in illumination of individual lamps by parallel switching of capacitance that ensures an equal current is applied to each lamp. The microcontroller produces the appropriate control signals and executes a digital servo control algorithm to modify the currents for carrying out the luminance adjustments. |
申请公布号 |
WO2005051051(A3) |
申请公布日期 |
2005.09.15 |
申请号 |
WO2004US37504 |
申请日期 |
2004.11.08 |
申请人 |
CEYX TECHNOLOGIES, INC.;SANCHEZ, JORGE |
发明人 |
SANCHEZ, JORGE |
分类号 |
G09G3/34;H05B33/08;H05B41/24;H05B41/282;H05B41/392 |
主分类号 |
G09G3/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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