Difference between MHL and OTG | Love Computer - 上海419贵族宝贝-上海后花园1314-上海品茶网-阿拉爱上海

Mobile phones and tablets have almost become an indispensable part of people's lives. The intellectualization and diversification of touch screen mobile phones have driven the development of peripheral devices, such as displays or televisions connected by mobile phones. At present, mobile phones can connect display devices in two ways, one is HDMI, and the other is MHL. I believe everyone knows about HDMI, MHL It is a relatively new technology and interface.

A few days ago, Lin Bin, the co-founder of Xiaomi Technology, sent a microblog to popularize science Xiaomi Mobile 2 MHL technology, explained to everyone what MHL is. At the same time, some netizens asked that MHL and OTG Today's editor will focus on answering this question.
　　
What is MHL?

MHL: short for Mobile High Definition Link, the standard interface for high-definition audio and video of mobile terminals. A standard AV interface for connecting portable consumer electronic devices. It uses the existing Micro USB interface. Whether it is a mobile phone, digital camera, digital camera or portable multimedia player, it can directly transmit complete media content to the display or TV without damaging the high-resolution effect of the film.

Full screen display without affecting image quality

It is convenient to connect the monitor directly. Some displays have MHL hotkeys on the menu. You can see the same picture (MHL mode) on the real screen as on the mobile device by touching it. You can exit the MHL mode by touching the MHL key again.

MHL cable can not only synchronize the pictures of the mobile phone and the display, but also output digital audio signals. In fact, it can synchronize the audio and video of the mobile phone box and the computer. Because MHL can support high-quality digital high-definition video with a resolution of up to 1080p through a single cable, playing games can fully synchronize the mobile phone with the display, which is really refreshing. In addition, MHL also has a built-in charging function. As long as it is connected to the display, the charging icon will be displayed immediately. Users can charge while playing without worrying about the battery shortage. And it is compatible with the HDMI input interface used by most digital TVs.

What is OTG?

OTG is the abbreviation of On The Go. It is a technology developed in recent years. It is mainly used to connect different devices or mobile devices for data exchange. Especially PDA, mobile phone and consumer equipment. It is inconvenient to change the connectors of many different systems between devices such as digital cameras, video cameras, printers, etc., and to exchange data between memory cards of up to seven systems.

On the tablet or mobile phone with OTG function, we can connect various USB devices, such as mouse, keyboard, USB flash disk, etc., which is still useful for mobile office. Especially for the reading of USB flash disk, card reader and other devices, mobile devices can be used directly when there is no computer around.

In fact, MHL technology is to synchronize the things displayed on the mobile phone to the display or TV. OTG function is to exchange data, store files, etc. with some portable digital devices, and view data information in USB flash drives, digital cameras, and other portable devices on the mobile phone.