| Summary: | 碩士 === 國立中央大學 === 光電科學研究所碩士在職專班 === 96 === The main purpose of the temperature control system is to control the stability of LED light source. When applied to the TFT-LCD backlight, it can feed back the impact of temperature, to change the states of each color light sources; therefore the panel can get more stable optical quality.At the same time, the temperature distribution of the backlight module is different, reduce temperature feedback effect, therefore need for the regional compensation, reduce brightness differences caused by uneven temperature. Thus, it is simple and effective to stabilize the efficiency of the LED colors system.
Using this method of controlling temperature compensation ,the backlight module system can be effectively controlled , below the default color temperature 6500 K , the operating temperature range between 5 ℃ ~ 50 ℃ ,the changes in color temperature of the backlight module can be controlled within 125 k , and △ u '' reduced to 0.0011, △ v'' reduced to 0.0017.
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