HDMI Touch Screen Display

An HDMI touch screen display is a type of computer display that uses the High Definition Multimedia Interface (HDMI) as its input source and also has touch screen functionality.
HDMI is a widely used interface for transmitting high-quality video and audio signals between devices. HDMI touch screen displays typically have an HDMI port, which allows them to connect to a wide range of devices, including laptops, desktop computers, gaming consoles, and streaming devices.
In addition to supporting HDMI input, these displays also have touch screen functionality, which allows users to interact with the display using their fingers or a stylus. This can be especially useful for applications such as digital signage

ssentially, the HDMI cable you use when you plug in your laptop is responsible for making sure that video and sound is conveyed to your touchscreen, but that’s where it stops. The USB cable on the other hand is responsible solely for the touch element of the screen, not the video and/ or sound.