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The Five Quality Parameters Influence LED Full Color Display-two
4; Brightness; brightness of LED lights is the important determinate factor of led display screen brightness. Higher LED brightness, using current margin is bigger, to electric power savings, is good for the stability of LED. The LED having different angle values, in the case of that the brightness of LED chips has been set, the angle is smaller, the LED is brighter, but the viewing angle of led screen is smaller. The generally should selected at 100 degrees LED to ensure sufficient angle of display screen. For the different viewing distance and spacing led display screen, should be find a balance point on the brightness 、viewing angle and price.
5; Consistency: the full color led display screen is composed of the tens of thousands or even hundreds of thousands of red, green, blue LED pixel. The brightness and wavelength of each color led can determines the brightness consistency of the display screen, consistency of white balance, color consistency. General speaking, the led display supplier require device suppliers to provide 5nm wavelength range and brightness range of LED lights. These indicators were graded by the device supplier through the color separation machine, to achieve the consistency of the voltage, is generally not required.