... the maintain cost.2. High refresh rate (greater than 4,000 Hz) with software adjustable, suitable for filming.3. High grayscale (15 ... bits) with perfect visual performance.4. High Contras ratio (2000:1) with black mask and black coating technique ... trade barriersCE, FCC, UL, RoHS, CCC,ISO9001:2000 etc are obtained. 4,Strong R&D TeamBESDLED absorbs many talents, with more than 500 ...