86inch Indoor Touch Screen with Education

Technology specificationModelDD550BR4501DD650BR4501DD750BR4501DD860BR4501LED Panel Size55"65"74.5"85.6"LED Light SourceStraight down type backlightStraight down type backlightResolution1920*10803840*2160Display Area1209.6(H)*680.4(V)mm1428.48(H)*803.52(V)mm1650.24(H)*928.26(V)mm1913.0(H)*1084.0(V)mmPixel Size0.630(H)*0.630(V)mm0.372(H)*0.372(V)mm0.430(H)*0..430(V)mm0.4935(H)*0.4935(V)mmDisplay Colors1.07G colors(8-bit)1.07G colors(8-bit+FRC)1.07G colors(8-bit+FRC)1.07G colors(8-bit+FRC)Brightness280cd/m2360cd/m2360cd/m2360cd/m2Contrast Ratio4000:15000:1Refresh Frequency60HZResponse Time≤10ms≤5msDepth of Color8bitViewing Angle178°/178°Life Time>5000hBuilt-in Speakers(8Ω10W)*2stereo(8Ω12W)*2stereoFront PortsNAUSB Touch*1,USB*2,HDMI*1Input PortsHDMI*1,VGA*1,AV*1,RF*1HDMI*1,VGA*1,AV*2,YpbPr*1Mic*1,USB2.0*2,RJ45*1,RF*1(Optional),RS232*1,SD Card*1HDMI*2,VGA*1,AV*1,YpbPr*1Mic*1,USB3.0*2,RJ45*1,RF*1(Optional),RS232*1,SD Card*1Output PortsEarphone*1VGA*1,AV*1,Earphone*1,SPDIF*1                       CPUNACortex A 53*2 1 .3GHZCortex A 53*4 1 .4GHZAndroid            GPUNAMail-T720Mali450MP4(4+2)600MHz  RAM&ROMNA1G DDR3/4G2G DDR3/4GB  SD CardNASupport MAX 128 GB SD cardSupport MAX 128 GB SD cardVersionNAAndroid 5.1Android 5.0OPS         CPUceleron 1000M/J1900Intel  i3/i5/i7             RAM4GB   DDR34GB   DDR3 HDD120G  SSD120G  SSD/500G HDDTouch        TechnologyInfrared touch              Touch Points10  Touch Resolution32768*32768                          Response Time≤8msPower Supply90-264vac@50/60HZPower Consumption≤160W≤280W≤400W≤500WStand-by Power