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    Future Touch Screens Are Sensitive To Pressure

    Now a days our Mobile,music player,digital camera,laptop,desktop computer monitor-all have touch sensitive screens,TouchScreen.As the popularity of full-touch devices continues to grow rapidly, manufacturers are working as hard as they can on delivering better user experience.Till now your touchscreens are not able to measure the amount of pressure you applied cann't assume what are you wishing to do.But it can surely say the next generation of portable touch-screen devices will be able to distinguish between a gentle touch and a hard poke.
    A UK based company, Peratech has signed a $1.4 million deal to license its pressure-sensing touch-screen technology to Japanese screen manufacturer Nissha. They are currently making displays for companies including LG and Nintendo.
    But it won't be so easy.Peratech's technology is one of several approaches that can be packed into portable devices. It uses a novel quantum mechanism to sense pressure, and this promises to be more sensitive and more efficient than the other approaches.The important thing to note is that Peratech make pressure sensors from this material, which are incredibly thin and can be slipped under any touchscreens. They don't draw any power when idle so you shouldn't worry about battery life either.

    The approach allows Peratech's QTC sensors to be extremely thin: just 75 micrometers thick. The sensors line the perimeter of a display. When pressure is applied and the screen bends very slightly (as little as two micrometers), the switches detect this change. By comparing the readings from the sensors with sensory data from the touch screen, it is possible to tell precisely where, and how hard, the screen is being pressed.
    Now there are two kinds of touchscreens we can see,Resistive and capacitive touchscreens.The resistive screens are way more accurate than capacitive, but it needs more pressure to be applied and are generally less responsive. Capacitive screens require only slight touch to register a click, allow multi-touch gestures by default, but lack accuracy and cannot be used with gloves, styluses or if you have long nails.
    And now we have the next touchscreen technology that will have a go at conquering the mobile world. Pressure-sensitive touchscreens can tell the difference between a slight touch and a really hard poke. That would allow a whole new user experience, with gestures based on the amount of pressure applied, along with ones currently available.
    Some of the supposed new gestures will allow you to drag and zoom pictures simultaneously or determine the scroll speed based on your pressure force.
    Source: GSMArena
    Technology review

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