A 5-inch HDMI touchscreen display for use with Raspberry Pi is available from Winstar.
With a resolution of 800 x 480 the display is available with resistive and capacitive touch options.
It comes with a control board with HDMI interface and a 40 pin connector for connecting to a Raspberry Pi.
http://www.electronicsweekly.com/news/raspberry-pi-gets-5-inch-hdmi-touch-screen-2016-12/