LCD TV interface Daquan, detailed explanation of common interface uses

April 4, 2022

HDMI interface:

HDMI interface can be said to be an essential interface in the high-definition digital era, not only can meet the resolution of full HD 1080p, but also support digital audio formats such as DVDAudio. HDMI equipment has the characteristics of plug and play, and can transmit up to 15 meters, which is convenient and powerful.

USB interface:

While many flat-screen TVs are equipped with USB ports, the functionality that can be achieved when a storage device is connected is not the same. Some TVs only support the playback of pictures, while others can play high-definition video and music files.

VGA interface:

VGA (VideoGraphicsArray) is the interface that transmits the analog signal to the display device. I believe that most people are exposed to it on the computer monitor. Since the era of CRT monitors, the VGA interface has been used and has been used since.

Optical audio interface:

Optical fiber audio interface TosLink, full name ToshibaLink, is a technical standard developed and set by Toshiba Corporation of Japan earlier, and there is an OpTical logo on the back panel of audio-visual equipment. The optical audio interface has absolutely optimized functions not only for images, but also for audio.

LAN network interface:

With the continuous deepening of the Internet, our daily life is closely related to the Internet. Without the Internet, it seems to be a bit out of touch with the world. Therefore, most flat-screen TVs are currently equipped with LAN network interfaces, and RJ-45 is common on TVs. Interface, commonly known as "crystal head".

Displayport interface:

DisplayPort is an interface specification approved by the Video Electronics Standards Association (VESA). DisplayPort is royalty-free and aims to leapfrog DVI and HDMI in several areas. DisplayPort utilizes the electrical layer of PCIExpress, which currently operates at a rate of 2.5Gbps, for a total of up to 10.8Gbps of bandwidth for four lanes. DisplayPort will add support for high-definition audio signal transmission while transmitting video signals, while supporting higher resolutions and refresh rates.

AV interface:

The earliest realization of audio and video separation, AV interface is a relatively early interface, it is composed of red, white and yellow lines, of which the yellow line is the video transmission line, and the red and white are responsible for the sound transmission of the left and right channels. .

S terminal interface:

Separation of chrominance and luminance, the full name of S terminal is SeparateVideo, the S-Video connection specification is a specification developed by the Japanese, S refers to "SEPARATE (separation)", which separates the output of luminance and chrominance, avoiding mixing The mutual interference of luminance and chrominance during video signal output. The S terminal is actually a five-core interface, consisting of two video luminance signals, two video chrominance signals and one common shielded ground wire, a total of five core wires.

Differential component interface:

The color difference component interface adopts YPbPr and YCbCr two kinds of signs, the former represents the progressive scan color difference output, the latter represents the interlaced scan color difference output. Simply put, compared to AV and S terminals, chromatic aberration divides the signal into three primary colors of red, green and blue for input.