The true image color reproduction

Full-color LED electronic display of color vision and principles, through red, green and blue colors of light in different colors to restore the image reproduction. Red, green and blue images directly affect the degree of pure color reproduction of visual effects. However, three-color white ratio is not a simple superposition of three colors.

First, to ensure that the frequency of pure light on the premise of requiring red, green, blue strong to be close to the ratio 3:6:1;

Second, because of the sensitivity of the visual of a red, red hair require light source in space to spread distribution;

Third, because of the visual red, green and blue colors of light in three different non-linear response curve, the different requirements of white light red, green, blue similar to the TV, γ correction;

Fourth, people's vision of a limited ability to distinguish the difference. Hence the need to find out authenticity of the image color reproduction of objective indicators. In order to reproduce the true color images, electronic LED display light should be allocated to meet the requirements of some of the following: 

  ① red, green, and blue wavelengths are to: 660nm, 525nm, 470nm or so; 

  ② using 4 white unit is better equipped (multiple units can be, depending on the light); 

  ③ red, green, blue gray-scale for the 256; 

  ④ LED pixels to be used for control of non-linear correction. 

  red, green and blue light and equipped with non-linear correction can display control system hardware, system software can be broadcast.


Reference link: http://www.17led.com/LEDdisplay/2008-04/48p3.html