Abstract:One kind of LED backlight module used for large-size TFT-LCD to apply in the direct illumination-type backlight source is designed by theoretical analysis and software simulation, and it is also confirmed such 15-inch backlight source can provide uniform illumination. The LED light intensity is estimated according to backlight module surface's brightness. A LED illumination model in Tracepro is established to study its illumination distribution. It is found the illuminance is most uniform when the mixed cavity… Show more
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