What is the difference between the color temperature of CRT display at 65K and 93K?

the color temperature of CRT monitor is 65K, which is suitable for watching movies and TV works and pictures made in Europe and America, and the color temperature of CRT monitor is 93K, which is suitable for watching movies and TV works and pictures made in China.

color temperature:

color temperature (colo(u)r temperature) is a scale indicating the light color of a light source, and the unit is k (Kelvin). Color temperature has important applications in photography, video recording, publishing and other fields. The color temperature of the light source is determined by comparing its color with the theoretical hot blackbody radiator. The Kelvin temperature when the hot blackbody radiator matches the color of the light source is the color temperature of that light source, which is directly related to Planck's law of blackbody radiation.

ColorTemperature is a performance index of high-end display. We know that when a light source emits light, it will produce a set of spectra. When a pure blackbody produces the same spectrum, it needs to reach a certain temperature, which is the color temperature of the light source. Numerical control displays over 15 inches must have a color temperature adjustment function, through which the color of the display can meet the high standard work requirements (generally there are three choices of 93K, 65K and 5K). Some high-end products also support linear adjustment of color temperature.

The average color temperature of the scenery in China is about 8 K ~ 95 K all year round, and TV stations take photos with the audience's color temperature of 93K in the production of programs. The usual color temperature in Europe and America is based on the average color temperature of about 6K throughout the year, so when we look at those foreign films again, we will find that 56 K ~ 65 K is the most suitable for watching. Therefore, we will feel that the color temperature is red and warm when we suddenly see the screens of computers or televisions in Europe and America. That is, people with black eyes look white at 93K, but people with blue eyes look blue at 65K. People with blue eyes look white and we in China look yellow.

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