Technical terminology for LED backlights

1. Brightness: the luminous intensity of the backlight under the measurement conditions, and the average value of the brightness of five points or nine points of the backlight;

2. Uniformity: minimum brightness value / maximum brightness value, also has the maximum brightness value / minimum brightness value for the customer;

3. Color: white light is represented by X and Y coordinates, and other colors are represented by wavelength;

4. Constant voltage test: the backlight is lit with a constant voltage, and the current varies with the voltage of the backlight body, and is generally not used;

5. Constant current test: the backlight is illuminated with a constant current, and the resulting voltage drop is within the requirements of the drawings.