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LED illumination unit, projection display device using the same, and method of operating LED illumination unit
LED illumination unit, projection display device using the same, and method of operating LED illumination unit
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机译:LED照明单元,使用该照明单元的投影显示装置及其操作方法
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摘要
An LED illumination unit, a projection display device using the LED illumination unit, and a method of operating the LED illumination unit are provided. The LED illumination unit includes a light source with a plurality of LEDs, and a lighting control unit which sequentially turns on the LEDs for lighting time sections which are assigned for each LED in a cyclic time period. The lighting control unit includes a driving signal modulator which generates a modulation signal for turning on at least one of the LEDs with a lighting duty that is shorter than the lighting time section for the at least one of the LEDs. The method includes sequentially turning on a plurality of LEDs of the LED illumination unit for lighting time sections which are assigned for each LED in a cyclic time period. At least one of the LEDs is turned on with a lighting duty that is shorter than its lighting time section.
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