21.5 inch external embedded touch screen (model Q)

——Screen type: LED liquid crystal screen (a-Si TFT-LCD WLED backlight) specification A；——Size: 21.5 inches (16:9)；——Display area: 489.7 (W) * 272.9 (H) mm；——Resolution: 1920 * 1080；——Brightness: 250cd / m2；——Response time: 13 / 5 (typ.) (TR / TD) (MS)；——Color quantity: 16.7M (8-bit)；——Visual angle: full viewing angle 89 / 89 / 89 / 89 (typ.) (CR ≥ 10) (left / right / up / down)；——Color temperature: 6485k；——Contrast: 3000:1；——Refresh frequency: 60Hz；——Signal access: LVDS；——Power supply voltage: 5V

——Touch technology: projection capacitive Technology (capacitive touch screen)；——Response time: < 5ms；——Touch points: 10 point touch, which can realize multi-point touch functions such as enlarging and reducing pictures；——Effective touch recognition: > 1.5mm；——Scanning frequency: 200Hz；——Communication mode: full speed USB 2.0, 3.0；——Firmware: support USB upgrade；——Working current / voltage: 180mA / DC + 5V ± 5%；——Anti light interference: normal use of sunlight, incandescent lamps, fluorescent lamps and other strong light changes；——Surface hardness: chemical toughened, Mohs 6 explosion-proof glass；——Touch data output mode: coordinate output；——Scanning accuracy: 4096 × four thousand and ninety-six；——Theoretical hits: more than 50 million；——Drive: no drive, plug and play；——Touch mode: finger / capacitive pen