The Company produced trichromatic phosphor stable quality, reasonable price.
本公司生产的三基色荧光粉质量稳定，价格合理。
With the emergence of blue LED, trichromatic LEDs have been completed and LED has also been applied to the projection display.
随着蓝光led的问世，LED三基色发光已齐备，近年来被逐步应用于投影显示中。
But was an extra photopigment all that was needed to evolve trichromatic vision? Or does seeing the world in all its colourful splendour require extra brain power too?
