LCD module Simple point is the screen + backlight light components. LCD TV Display part is the LCD module, its status is equivalent to CRT in the picture tube. Other parts include the power circuit, signal processing circuit, and, of course, the shell or something. Modules are mainly divided into screen and backlight light components. The two parts are assembled together, but the work is independent of each other (that is, the circuit is irrelevant).
The principle of liquid crystal display is that the backlight unit emits a uniform surface light, and the light passes through the LCD screen to our eyes. The function of the screen is to process the light in pixels to display the image. Two parts contain a lot of parts, there is no detail here. Now the best technology is sharp, followed by Samsung Sony.