PCAP 17 Inch Touch screen multi-touch Projected capacitive touch screen
Typical Application
Main Feature
HOW PCAP Touchscreens Work?
A Projected Capacitive Touch (PCT; also PCAP) technology consists of an insulator such as glass, which is coated with a transparent conductor, like ITO (indium tin oxide). The user’s finger conducts electricity, so touching the surface of the screen results in a distortion of the screen’s electrostatic field; that distortion is measurable as a change in capacitance.
In other words, a capacitance-based sensor is a circuit designed to sense touch by coupling with the electrical fields; touch causes the capacitance of the circuit to change.
Different technologies may be used to determine the location of the touch; the location is then sent to the controller for processing.
A capacitive touchscreen sensor consists of a large array of indium tin oxide (ITO) conductors on one or more layers of glass or polyethylene terephthalate (PET) plastic.
The good optical clarity and low resistivity of ITO make it the overwhelming choice for this very sensitive circuit.
Specification of Product
Technical specification | |
Type | Projected touch panel |
Interface | USB |
Number of touch point | 10 |
input voltage | 5V ---- |
Pressure endurance value | <10g |
Input | Hand writing or capacitive pen |
Transmittance | >90% |
Surface Hardness | ≥6H |
Usage | The specification is applied to transparent and handwriting input |
capacitive touch panels | |
Application | It's applied in ordinary electric equipments and automatic office facilities |
Cover Lens Specification | |
Pressure Value | 400 ~500 mPA above 6u |
Ball Drop Test | 130g±2g, 35cm, No damage after the impact at the central area for once. |
Hardness | ≥6H Pencil: 6H Pressure: 1N/45. |
Environment | |
Working temperature and humidity | -10~+60ºC, 20~85% RH |
Storage temperature and humidity | -10~+65ºC, 20~85% RH |
Humidity resistance | 85% RH, 120H |
Heat resistance | 65ºC, 120H |
Cold resistance | -10ºC, 120H |
Thermal shock | -10ºC(0.5hour)-60ºC(0.5hour) by 50 cycles |
Anti - glare Test | Incandescent lamp (220V,100W) , |
operating distance over 350mm | |
Altitude | 3,000m |
Working Environment | Directly Under sunlight ,indoor and outdoor |
Software(Firmware) | |
Scanning | Auto full screen scanning |
Operate system | Win 7,Win 8,Win10, Andriod,Linux |
Calibration tool | Precalibrated & Software can be download in CJTouch Website |
Picture of Product
Technical Drawing