Joke Collection Website - Cold jokes - What do you mean by LCD TV backlight module, logic module and high frequency tuner?

What do you mean by LCD TV backlight module, logic module and high frequency tuner?

Backlight assembly: LCD can produce transparent images of different colors, and people can only see the images under the illumination of backlight. Otherwise, you will see a black screen.

High frequency tuner: Every TV station and every program has a fixed frequency. To put it bluntly, it is used to tune the channel.

Logical component: I don't know.