TCL T69C 55T69C. Display diagonal: 139.7 cm (55″), Display resolution: 3840 x 2160 pixels, HD type: 4K Ultra HD, Display technology: LCD, Screen shape: Flat, LED backlighting type: Direct-LED. Smart TV. Motion interpolation technology: PPI (Picture Performance Index) 3400, Display brightness: 350 cd/m², Response time: 15 ms, Native aspect ratio: 16:9. Digital signal format system: DVB-C, DVB-S2, DVB-T2. Wi-Fi, Ethernet LAN. Product colour: Black