The SPI interface (Serial Peripheral Interface, basically a serial port that requires a software driver to emulate a hardware display) being used for PiTFT displays is slow and less configurable than a standard composite video (low resolution, but standardized and built-in on the board) and HDMI (high resolution, easily configurable, standardized).correia5022 wrote:Why can't i connect the RpiZ directly to a LCD (those made especially for raperry)?
This answer is probably partially wrong, but I'm using my own level of understanding to describe it.