bids are invited for interactive panel-86 inches - displaydisplay size: 86 inches; display type: interactive flat panel display; native resolutions: 3840 x 2160 pixels; response time: 8ms; brightness: 350cd/m2 or above; contrast ratio: 1200:1 or above; aspect ratio: 16:09:00; pixel pitch: 0.429*0.429mm; refreshing frequency: 60hz; color depth: 1.07b (10bit) or above; viewing angle: 178°(h/v}; back light unit: dled; life time: =30000 hours or aboveaudiosound channel: 2 x 12w bottom loud speaker; touch systemtouch system:sensing type: infrared recognition; support system:windows10/windows8/windows7/windowsvista/win; dowsxp/windows2000/linux/mac/android; touch point: 10 points writing and 20 points touch; minimum object size: 2mm; touch tool: finger, finger cover by glove, opaque objects; response time: <15ms or better; touch accuracy: +/- 1.5mm or better; communication mode: full-speed usb;surface hardness: toughened glass with level 7 of mohs standardandroid systemsystem version: android 8.0 or above; cpu: arm cortex a73 dual core cpu; gpu: mali 450*5; ram: 4gb or above; rom: 32gb or above; , interactive panel-75 inches - displaydisplay size: 75 inches; display type: interactive flat panel display; native resolutions: 3840 x 2160 pixels; response time: 8ms; brightness: 350cd/m2 or above; contrast ratio: 1200:1 or above; aspect ratio: 16:09:00; pixel pitch: 0.429*0.429mm; refreshing frequency: 60hz; color depth: 1.07b (10bit) or above; viewing angle: 178°(h/v}; back light unit: dled; life time: =30000 hours or aboveaudiosound channel: 2 x 12w bottom loud speaker; touch systemtouch system:sensing type: infrared recognition; support system:windows10/windows8/windows7/windowsvista/win; dowsxp/windows2000/linux/mac/android; touch point: 10 points writing and 20 points touch; minimum object size: 2mm; touch tool: finger, finger cover by glove, opaque objects; response time: <15ms or better; touch accuracy: +/- 1.5mm or better; communication mode: full-speed usb;surface har