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The most common interface: Radio Frequency (RF) interface, that is, cable television interface, I believe all people who buy TV will use.
The latest wave interface: HDMI interface, the preferred interface for almost all next-generation playback devices, supports 1080P display.
The most familiar interface: composite (AV) interface, from the VCD, red and white machine era used on the red, white and yellow color interface, with the growth of audio-visual products after 80.
The most practical interface: RJ45 interface - network (LAN) interface, so that television can connect to the Internet, so that "watching TV" to "play TV."
The highest-end interface: Optical (OPTICAL) interface, generally used by advanced home theater players, is characterized by the ability to prevent the passage of digital noise, the loss of the transmission process is minimal.
The latest trend of the interface - HDMI interface 
At present, the most popular and display effect is the HDMI interface. This is also the connection method adopted by the next-generation devices. HDMI adopts all-digital transmission. The signal transmission via TMDS can support 1080P images and up to 7.1 channels at the same time. Output. HDMI connection is simple and it can transmit video and audio signals at the same time with a single cable. HDMI uses a fully digitalized transmission, eliminating the need for digital/analog or analog/digital conversions, resulting in the highest quality audio and video transmissions.
Most familiar interface: Composite (AV) interface 
The AV interface may be the oldest but still preserved interface type. The popular VCDs, red and white game machines, and bully learning machines in the 1990s used this connection method. The connectors were composed of red, white, and yellow colors. Red and white interfaces are left and right channel audio interfaces, while yellow interfaces are video interfaces.
Emerging interface type - USB, LAN interface
1, USB interface 
USB is the abbreviation for Universal Serial Bus (Universal Serial Bus). This interface first appeared on PCs. Now it has been used very frequently, but it has been on TV for nearly a year. This interface is mainly for TVs. Streaming media services, that is, through the USB interface TV can directly read the video, music, text and other files on the mobile storage device, expanding the TV's function, and some television through the USB interface to achieve TV upgrades.
2, network interface 
The network interface on the TV is also the RJ45 standard. This is the standard interface for network devices. It is the same as the USB interface. The network interface has only recently appeared on TVs. It has appeared for TV Internet access, and the Internet here also includes home LANs. And the Internet, the difference is not detailed here, but the hardware implementation is the same. The network interface is simple and the network cable used in the home computer can be directly inserted into the TV interface, which is easy to use.
Most common interface - cable TV interface 
TV interface, also known as RF RF input interface, its imaging principle is the video signal (CVBS) and audio signal (Audio) mixed encoding output, and then within the display device for a series of separation / decoding, and finally output imaging. The main disadvantage is that because of the need for more steps for video, audio, and video hybrid encoding, which can cause signals to interfere with each other, its picture quality output quality is general.
VGA interface 
The VGA interface is a type D interface with a total of 15 pins empty, divided into three rows of five in each row. The VGA interface application is no problem, but for connecting a display device such as a tablet, the image loss during the conversion process will slightly reduce the display effect. This interface is currently the interface commonly owned by flat-panel TVs. In order to make it convenient for consumers to use the computer in the home as an input device, the screen is output to the TV.
However, this interface is an analog signal interface, so when the flat-panel TV is output, some TV opportunities cannot be peer-to-peer. If you want to use it as a display device for a long time, it is better to conduct a point-to-point test before buying. Although the DVI interface allows digital transmission, flat panel TVs are not equipped with this interface.
Tomorrow Star Displayport Interface 
DisplayPort is also a high-definition digital display interface standard that can connect computers and monitors, as well as connect computers and home theaters. In May 2006, the Video Electronics Standards Association (VESA) identified the 1.0 version of the standard and upgraded it to version 1.1 six months later, providing support for HDCP. Version 2.0 is also planned for launch this year.
As a competitor to HDMI and UDI and a potential successor to DVI, DisplayPort has won the support of AMD, Intel, NVIDIA, Dell, Hewlett-Packard, Lenovo, Philips, Samsung and other industry giants, and it is free to use, unlike HDMI. High licensing fees. Because of this, it won the support of big brands including AMD, and the DisplayPort interface was gradually added to the graphics card that came out in 2 years.
USB (Universal Serial Bus) was originally developed and introduced in 1996 as a way of setting up communication between a computer and peripheral devices by replacing many varieties of serial and parallel ports.
USB connectors have become the standard connection method for devices such as mice, keyboards, game pads & joysticks, scanners, digital cameras, printers and external hard drives.
Although designed for personal computers USB has become commonplace on other devices such as mobile phones, PDA's, video game consoles, AC power adaptors, memory sticks and mobile internet access dongles.
USB Connector Type
USB Type A
Also known as USB standard A connector, the USB A connector is primarily be used on host controllers in computers and hubs. USB-A socket is designed to provide a "downstream" connection intended for host controllers and hubs, rarely implemented as an "upstream" connector on a peripheral device. This is because USB host will supply a 5V DC power on the VBUS pin. As such, it is important to remember while purchasing USB cables it is safest to make sure at least one of the plugs is a USB A.
Though not that common, USB A male to A male cables are used by some implementers to make connections between two USB A style female port. Be aware that typical A-A cables are not intended for connection between two host computers or computer to hub.
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USB Type B
Also known as USB standard B connector, the B style connector is designed for USB peripherals, such as printer, upstream port on hub, or other larger peripheral devices. The primary reason for the development of USB B connectors were to allow the connection of peripheral devices without running the risk of connecting two host computers to one another. USB B type connector is still used today, though it is slowly being phased out in favor of more refined usb connector types.
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USB Type C
USB-C or USB Type-C connector is the newest USB interface came to the market along with the new USB 3.1 standard. Different from previously mentioned USB A type and B type connector, USB C Type connector can be used on both host controller ports and devices which use upstream sockets. In the last few years a numbers of laptops and cellphones have appeared on the market with C style USB connectors.
USB Type C connector is compatible with USB 2.0, 3.0, 3.1 Gen 1 and Gen 2 signals. A full feature USB 3.1 Gen 2 C to C cable is able to transmit data at maximum 10 Gbps with enhanced power delivery of up to 20V, 5A (100W) and to support DisplayPort and HDMI alternate mode to transfer video and audio signal.
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USB Mini B
Similar to USB B type connector, USB mini B sockets are used on USB peripheral devices, but in a smaller form factor. The mini B plug by default has 5 pins, including an extra ID pin to support USB On-The-Go (OTG), which allows mobile devices and other peripherals to act as a USB host.
Initially, this plug was designed for earlier models of smartphones, but as smartphones have become more compact and with sleeker profiles, the Mini USB plug has been replaced by the micro USB. Now, the Mini-B is designed for some digital cameras while the rest of the mini plugs series have become more of a legacy connectors as they are no longer certified for new products.
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USB Micro B
The micro USB B connector essentially a scaled down form of the mini USB which allowed mobile devices to get slimmer while still maintaining the ability to connect to computers and other hubs.
In order to meet the different needs of consumers, many high-definition televisions are equipped with a variety of interfaces. However, some users do not know what these interfaces are and how they are used. So today, Xiao Bian has addressed this issue and explained it to everyone in detail.