85 дюймовый 4K плоский дисплей для обучения Интерактивная цифровая доска занятий в классе

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Характеристики







Touch parameters
Display performance parameters
Touch type
Infrared touch technology (20 points)
Backlit type
DLED
Writing style
Fingers, stylus or other non-transparent objects not less than 5mm in diameter (multi-point 8mm)
Backlight life
For 50,000 hours
Cursor speed
120 points per second
Physical resolution
4K 
positioning accuracy
1PI+/- 1MM/OFFset/ 10MM
Machine peak brightness
350cd/㎡-20
Touch resolution
4096*4096
Dynamic contrast
5000:1:
Number of touches
Theoretical infinite
Watch the perspective
H / V: 178 / 178 degrees
Watch the perspective
H / V: 178 / 178 degrees
Screen ratio
16:9
Computer response
System automatic identification; ≤15ms
Show color
10Bit, 16.7M
operating system
Windows system 
refresh rate
60HZ
















1. Who are we?
We are based in Guangdong, China, start from 2016,sell to Africa (55.00%), North America (12.00%), Eastern Europe (12.00%) , Oceania(12.00%). There are total about 101-200 people in our office. Specialized in High Quality Cheap Price Electronics Products and OEM Accepted.

2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.What can you buy from us?
LED Monitors,Touch screen Monitor, LED/LCD TV, Indoor advertising machine, Teaching Conference all-in-one machine, Touch query all-in-one machine.

4. Why should you buy from us not from other suppliers?
You get what you pay for, I believe in our quality and service, and professional foreign trade.

5. What is your Fast Delivery date?
The wholesale products can Fast Delivery date in 1-3 days for samples.

6. Do you accept Alibaba Trade Assurance?
Yes, we support Alibaba Trade Assurance.




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