LCD brightness and LCD backlight requirements

LCD brightness

Brightness represents the amount of brightness of a picture per unit area. Specifically, the density of the amount of light passing through the normal direction of the screen. The unit is [CD / m2] or nit(1 nit = CD / m2).Brightness depends on the amount of light passing through the LCD and color film, and the brightness of the backlight.


LCD backlight requirements:

  1. The liquid crystal should have good transmittance;
  2. light weight;
  3. It should be thin and not easy to damage;
  4. The area light source with uniform brightness is the best;
  5. Low cost;
  6. The light color is pleasing to the eye, the primary color is rich, and the brightness can be adjusted;
  7. Low power consumption and easy power supply


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