What is the difference between Cai Zhen and Dolby?

Cai Zhen and Dolby are two different brands and technical standards.

First of all, Cai Zhen is a color technical standard introduced by China Video Industry Association (CEA), which is dedicated to improving the color expressiveness and accuracy of display devices. The standards of color realization mainly include the requirements of color range, color depth, color accuracy and color brightness.

Dolby is a world-renowned audio and video technology company, which has developed a number of audio and video processing technologies, including Dolby Panoramic Sound, dolby digital and Dolby Vision.

Dolby Vision is one of Dolby's most famous video technologies. It is a high dynamic range (HDR) technology, which can provide a wider color range, more accurate color representation and higher brightness contrast. Dolby Vision dynamically adjusts the display of brightness and color to present a more realistic and vivid image effect.

To sum up, Cai Zhen is China's color technology standard, and Dolby is a world-renowned audio and video technology company, which has developed many audio and video processing technologies, including Dolby Vision. The difference between Cai Zhen and Dolby is that they are different technical standards and brands. Cai Zhen focuses on improving color expression, while Dolby focuses on improving audio expression and image effect of audio and video.