Size 15-22" Dot pitch ( mm) 0.297H* 0.297V Color 16.2M Resolution 1280* 768 Contrast ration 1000: 01: 00 Brightness( cd/ m2) 600cd/ m2 Contact Bounce( ms) 5ms view Angle Level160/ Vertical160 Lifespan( hrs) 50, 000( hrs) Material Pure Glass Luminousness 90% -92% Hitting Life Expectancy > 50, 000, 000 Contact response time f10ms Contact medium Finger, finger with glove, Rubber and soft pen Contact us: Sales@ h-only.com Web: www.h-only.com