What is AV input for liquid crystal display

AV input is the use of AV interface for signal input, AV interface is a relatively early interface, which consists of red, white, yellow three color lines, including yellow line for video transmission line, red and white is responsible for the sound transmission of the left and right channels.

The earliest audio-video separation transmission Interface--av interface

AV interface is a relatively early interface, it consists of red, white, yellow three color lines, including yellow line for video transmission line, red and white is responsible for the sound transmission of the left and right channels.

AV interface

AV interface for the first time the video and audio separation transmission, but it is responsible for the video transmission of only a line, so this transmission is still the first combination of brightness and chroma, and then on the display device to decode the display, so, in the video transmission quality is still some loss. AV interface has been widely used in the early days of VCD and DVD player and TV connection.

AV line

AV interface is also called (RCA), refers to the current number of car GPS equipment, through their own sound, video terminals, connect AV line will own data image sound, etc., output to other display and audio-visual equipment, such as external monitors or headphones, the main interface has AV composite terminals, S-video terminals, headphones interface. It can be regarded as the improved interface of TV, the appearance of a lot of different. Divided into 3 lines, respectively: audio interface (red and white line, composed left and right channel) and video Interface (yellow).

Because the AV output is still a combination of brightness and chroma of the video signal, so still need to display devices for brightness and color separation, and decoding to imaging. Such practices will inevitably cause loss of quality, so the quality of AV interface is still not satisfactory. The connection is very simple, just 3 colors of AV cable and TV end of the 3 colors of the interface to connect.

In general, the AV interface separates video from audio, thus avoiding interference between audio and video. But because in the video transmission also needs the brightness and chroma to decode display, so the video transmission still has the loss, so the current high-definition video playback basically gave up the AV interface.