Hello,
Well, to support MHL you need a chip/licence in the phone which you don't need with DisplayLink. You only needs USB, available on pretty much anything.
For the charging, new products are being launched now on USB Type-C with Power Delivery.
It is technically not possible (even forbidden) by the standard to do charging on micro-USB because the phone can EITHER be host OR device (if it supports USB OTG). To charge in non-Type-C, you need to be in device mode and to access a device like a docking station, you must be in host mode.
Also, USB Power Delivery (USB-PD) over Type-C requires dedicated USB-PD circuitry in both the device and the host. Therefore it will never be possible to retrofit USB-PD on existing products which don't have the circuitry.
For multiple monitors, we know it's possible because we have demonstrated it. However it requires changes in the OS to be able to select on which display the app has to be shown. I think you need to flag your interest to the phone manufacturers, as they can do this in their UI. This is definitely not possible from an app only.
Kind regards,
Alban
|