I HAVE A QUESTION ABOUT DISPLAY AND TOUCH PENS
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Q. DOES TOUCH PENS HAVE ANY TOUCH SENSORS? IF YES WHAT'S FUNCTION OF THIS
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If it has additional functions besides being a stylus, yes. it probably has some sort of sensor...if nothing else to communicate with the software that connects it to the device.
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@Mian-Talha-Zia, great question, and like another question you asked, context it key! Most touch screens use a built in digitizer that transforms analog signals into digital signals to be processed by the system. Second, this depends on the display type, for example if it is capacitive touch, these screens use the electrical properties of a human finger. If it is resistive touch then almost any object will interact with the screen (stylus, finger, pen). In the case of a touch pen that uses a light sensor then this type of pen can have a small lens that tracks motion from the pen and send the signal to the computer (for example Samsung Galaxy S Pens). In the case of a Wacom tablet touchscreen, these have pens using EMR or Electro-Magnetic Resonance.
