It is all about the:

2.1” round IPS display 480×480, TST020WVBS-08 is a 2.1 inch round IPSTFT-LCD module; resolution 480×480 pixels. Supports a SPI+RGB 18-bit interface; is also available in projected capacitive touch panel(PCAP) and resistive touch panel(RTP).
8” IPS 1280×720 LVDS, -30 to +85℃, TST080HDSH-21 by TSD
New PR-series UHD, 700nits ,24/7 Monitor by VESTEL