When buying a TV, you must also consider the various interfaces. Without some corresponding interfaces, some other functions would not work. For example, connecting the external speakers to the TV requires an HDMI ARC/eARC interface. The interface behind the TV looks like a lot, it seems very complicated. Today, discuss the most common tv interfaces and their roles. What are the functions of these interfaces?
Most Common TV Interfaces and Their Roles
In no particular order of importance, I shall be discussing in detail some of the most common tv interfaces and their roles in getting more from your smart TV
1. HDMI Interface
Basically, HDMI interface can be said to be a necessary interface in the high-definition digital era. It meets the resolution of Full HD 1080p and 4K and supports digital audio formats such as DVD Audio. HDMI interfaces exist in traditional Blu-ray TVs, Internet TVs, or popular smart TVs.
Roles/Functions of HDMI Interface on A Smart TV
The HDMI1.4 interface is the most commonly used. It supports 3840×2160 resolution and can support up to 30FPS frame rate picture playback.
Also, you can connect Blu-ray HD player and other equipment and play 4K video. In September 2013, the HDMI2.0 interface appeared. While maintaining the resolution of 3840×2160, it also supports picture playback of up to 60FPS frame rate, supports up to 32 channel output, and 1536KHz audio sampling rate.
HDMI equipment has the characteristics of plug-and-play. It can be connected to video equipment, such as smart TV boxes, XBOX and PS game consoles, and IPTV boxes, and can transmit up to 15 meters. It is convenient and powerful. HDMI is also required if you want to mirror your phone’s content to your TV screen
In addition, when buying a TV nowadays, HDMI cables are generally not given randomly. When buying a TV, everyone should try to buy HDMI cables from major manufacturers to ensure the TV picture and sound have a better playback performance.
2. USB interface
Apparently, the USB interface should be the most familiar to everyone, and it is also a necessary interface for TV.
It is often used for charging mobile phones or connecting to computers. Not too long ago, After the USB3.0 interface appeared. The maximum speed of the USB3.0 interface can reach 640MB/s, which is enough to meet the needs of 4K ultra-high-definition transmission.
Noteworthy is the fact that you need a USB port to power your “miracast dongles”. it becomes more convenient if one is on your TV
4. The Memory card Interface on TV
For an unknown reason, memory card interfaces on TV is not a very popular feature. However, you can still find them on some. The memory card interface is to expand the storage of space of smart TVs. At present, most smart TVs are equipped with SD card expansion interfaces.
Under normal circumstances, mainstream 16GB and 32GB memory cards can be fully compatible; the largest SD card that TV support ranges between 128GB and 256GB.
Sometimes, the TV may not recognize the memory card after the SD card is inserted into the TV card slot.
If such a problem occurs, don’t worry; as long as it can be recognized normally on a computer or a mobile phone, you can use the formatting memory card function with the TV to format it.
In addition, after using the SD card, it is best to use the remove or uninstall memory card function in the TV menu to prevent the files in the memory card from being lost.
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5. Audio Interfaces
In terms of audio interface, there are currently two major categories of analog audio interface and digital audio interface, which are suitable for different user groups.
RF input is commonly known as an antenna. It is the input interface for radio frequency signals. This interface is useless if you use a wired digital set-top box. To use this interface.
6. Miscellaneous Interfaces That you can find on a TV
- Antenna/Aerial IN interface on the TV: the name for a connector used to connect coaxial cables and with terrestrial VHF/UHF roof antennas or to share the signal from a decoder to me than one TV
- RS232 Serial Port
- digital visual interface (DVI)
- Optical Audio Output port
- VGA PC interface on TV
A final thought on TV Interfaces
The above are some of the common interfaces of TV nowadays. When buying a TV, in addition to whether the interface is missing, you must also pay attention to its specifications and functions to avoid trouble in future use.
Also, pay attention to the location of the interface, especially those commonly used interfaces, which should be easy to wire and plug.
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