touch panel for mac

touch panel for mac.The problem is solved, but the cost is large: the first is " drift " , because the coupling capacitor is unstable, it is directly affected by temperature, humidity, finger wetness, human body weight, and dryness of the ground, and it is affected by a large area The interference of the object is also very large, which brings unstable results. These directly violate the basic requirements of the absolute coordinate system as a touch screen, which inevitably generates drift. Some capacitive touch screens want to pass the 25- point calibration method or even 96. The point calibration method to solve the drift problem is actually impossible. The drift is determined by the capacitor operation. Even using dynamic calculation and empirical value look-up tables on the controller's single-chip computer program, it can only cure the symptoms and not the root causes. . The multi-point calibration method was the earliest method used by large-screen projection touch panels. The purpose is to eliminate the linear distortion corresponding to the coordinates. The linear distortion of the capacitive touch screen is also very strong, mainly because the calculation of the capacitive screen is based on the four current levels and the touch point. In the ideal state where the distance between the four electrodes is proportional, due to the influence of environmental capacitance, line parasitic capacitance, and use by different people, this proportional relationship cannot be completely linear. The multi-point calibration method can only solve the linearity of local distribution. The problem cannot solve the overall drift.

Interactive Whiteboard

IQAio GR519 Interactive Whiteboard

touch panel for mac.IQAio GR519 is highly integrated with multi-point infrared interactive whiteboard, central control system, wireless microphone, stereo amplifier system, OPS and other equipment, forming a perfect multi-media classroom solution together with a projector. 

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IQ Infrared
Interactive Whiteboard

Support gesture recognition:
1 finger to write, 2 fingers to select, full palm to erase.

Enable 10/16/32 touch points for collaboration.

18 hotkeys on both sides for handy operation.

No special pen required

Bundled with IQ Interactive Education Platform Software 6.0 which has rich resources and tools to achieve a vivid class atmosphere.

IQ All-in-one
Infrared Interactive Whiteboard

Integrated design: Highly integrated multi-point infrared interactive whiteboard, central control system, wireless microphone, stereo amplifier system, built-in OPS and other equipment.

Cost-effective : Only with a projector, IQAio GR519 can form a perfect classroom solution.

One key operation to power on: all the devices will be powered on including interactive whiteboard, built-in OPS, projector, central control system etc.

No complicated devices connection: save much time for classroom devices management before teaching.

Rich ports: plug-n-play external computers.

Bundled with IQ Interactive Education Platform Software: to give a vivid and wonderful demonstration in class.

IQClass Solution

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