The MHL interface is a standard interface for audio and video signal transmission connected to portable electronic devices. MHL was developed mainly for the convenience of mobile phone users. Its appearance is the same as MICRO and USB, so it is compatible with mobile phone interfaces and is easy to use. MHL can compress and transmit multiple video signals at the same time. The signals are compressed through the built-in chip of the mobile phone. The MHL to HDMI converter outside the device cooperates with the compression chip in the mobile phone to process the data, which becomes HDMI.
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
What is the mhl interface
MHL is the abbreviation of "Mobile High-Definition Link", which is an audio and video interface that connects portable electronic devices Standard interface for signal transmission. MHL was developed mainly for the convenience of mobile phone users. Its appearance is the same as MICRO and USB, so it is compatible with mobile phone interfaces and is easy to use.
MHL can compress and transmit multiple video signals at the same time. The signals are compressed through the built-in chip of the mobile phone. The MHL to HDMI converter outside the device is connected with the compression chip in the mobile phone. Processing data coordination becomes HDMI.
In addition to mobile phones, other portable devices such as cameras have MHL output capabilities. The relationship between MHL and HDMI is independent but closely related. Since the MHL interface outputs HDMI signals, it needs to be connected to the mobile phone device through HDMI for transmission.
MHL can display video images on a high-definition TV by connecting with a standard HDMI input interface through only one signal current. During operation, using the existing Micro USB interface of the device, whether it is a mobile phone, digital camera, digital video camera, portable multimedia player and other devices, the media content can be directly transferred to the TV, and it can ensure that the video details are not damaged or lost, and the presentation is High resolution playback effect.
MHL application
The MHL interface can transmit the audio and video signals from the mobile phone to an external display device without any settings. You only need to choose a good external display device to complete the operation easily. Through MHL, you can transmit digital high-definition video with up to 1080P resolution from your mobile phone to the connected display device, and conveniently experience the large-screen high-definition visual sense.
Only requires a very small number of cables to connect: Generally, only a high-quality, easy-to-carry MHL cable is needed to connect to a 5-core interface to support the future. Compressed high-definition digital audio and video can be used for charging and setting operations. For example, the mobile phone can be connected to an external monitor, mouse, etc. to realize the PCization of the mobile phone.
Directly use existing common interfaces to implement: A major feature of MHL technology is that there is no need to establish an interface, and MHL transmission can be realized directly by using the existing interface on the mobile phone.
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