What's the difference between 88 screen and holographic screen?
88 screen and holographic screen, the difference is that the pixel unit is different. Holographic display screen is composed of holographic pixel units, each pixel unit is based on the image plane holographic structure of speckle, and the unit grating plays the role of modulating incident light and directional diffraction imaging. 88 screen is a digital tube, which can only display numbers and decimal points.