Connection display device technology: the difference between MHL and OTG technology
Mobile phones and tablets have become an indispensable part of people's lives. The smart and diversified touch-screen phones have also driven the development of peripheral devices, such as monitors or TVs connected by mobile phones. At present, mobile phone connection display devices can be used in two ways, one is HDMI, the other is MHL, I believe that HDMI everyone knows, MHL is still a relatively new technology and interface. A few days ago, Xiaobin, the co-founder of Xiaomi Technology, sent a microblog, MHL technology of Science and Technology Xiaomi Mobile 2, to explain to everyone what is MHL, and some netizens asked, the difference between MHL and OTG, today Xiaobian focuses on Answer this question. What is MHL? MHL: It is an abbreviation of Mobile High-DefiniTIon Link, a high-definition audio and video standard interface for mobile terminals. A video and audio standard interface for connecting portable consumer electronic devices. It utilizes the existing Micro USB interface to deliver complete media content directly to a monitor or TV without compromising the high resolution of the film, whether it is a cell phone, digital camera, digital camera or portable multimedia player. Full screen display, does not affect image quality It is very convenient to connect directly to the monitor. Some monitors have MHL hotkeys on the menu. You can see the same screen (MHL mode) on the mobile device from the actual screen, and tap the MHL button again to exit the MHL mode. In addition to synchronizing the mobile phone and the display screen, the MHL line can also output digital audio signals, which is actually the audio and video synchronization of the mobile phone box computer. Because MHL can support high-quality digital high-definition video with up to 1080p resolution through a cable, it is really cool to play games to fully synchronize the phone with the display. In addition, MHL also has a built-in charging function. As soon as it is connected to the monitor, the charging icon is displayed immediately. The user can charge while playing, without worrying about the battery being insufficient. And it is compatible with the HDMI input interface adopted by most digital TVs. What is OTG? OTG is an abbreviation of On-The-Go. It is a technology developed in recent years. It is mainly used for the connection between various devices or mobile devices for data exchange. Especially PDAs, mobile phones, consumer devices. It is inconvenient to change data exchange between up to seven types of memory cards by changing a variety of different types of connectors between devices such as digital cameras, camcorders, and printers. On an OTG-enabled tablet or mobile phone, we can connect various USB devices, such as a mouse, keyboard, USB flash drive, etc., which is still useful for mobile office. In particular, the reading of U disk, card reader and other devices can be directly used by mobile devices without a computer. In fact, MHL technology can synchronize the things displayed on the mobile phone to the display or TV. The OTG function can exchange data and file storage with some portable digital devices, and can also view U disk or digital on the mobile phone. Data information inside the camera and some other portable devices.
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