LCD transparent screens cannot yet achieve the same thinness and lightness as OLED transparent screens. The most significant difference between OLED and LCD is that OLED screens are self-emissive while LCD screens are not. This allows OLED to have fewer modules and fewer stacked layers compared to LCD.
No matter how thin the components of an LCD transparent screen are made, it cannot change the fact that it requires a backlight cabinet. OLED screens, on the other hand, can achieve a sufficiently thin and light form factor by eliminating the liquid crystal layer and backlight layer modules commonly found in traditional LCD screens, thanks to their self-emissive nature.
The structure of a transparent OLED display includes an upper substrate and a TFT substrate. A transparent LCD display includes an upper polarizer, upper substrate, TFT substrate, lower polarizer, diffuser plate, prism sheet, light guide plate, circuit board, etc.