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A touchscreen (or touch screen) is a type of display that can detect touch input from a user. It consists of both an input device (a touch panel) and an output device (a visual display). The touch panel is typically layered on the top of the electronic visual display of a device.
[7] [8] [2] [9] [10] In 1973 Beck and Stumpe published a CERN report, outlining the concept for a prototype touchscreen as well as a multi-function computer-configurable knob. [ 11 ] [ 12 ] On the left, x-y multi touch capacitance screen prototype developed at CERN in 1977; [ 13 ] [ 14 ] on the right, self capacitance screen developed at CERN ...
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The switch will operate regardless of whether force is applied through insulating or conducting materials. Capacitive switches respond to an electric field applied to the switch. The field will pass through thin gloves, but not through thick gloves. [1] Piezo switches usually cost more than capacitive switches. [1]
The Yoga 13's capacitive touch display allows for up to 10-point touch control. The Yoga 13 is powered by an Intel Chief River platform, using an Ivy Bridge processor, has 4 GB or 8 GB of RAM, and SSD with 128 GB or 256 GB. [1] [8] The battery life of the Yoga 13 is estimated at eight hours. [1]
Human interface devices based on capacitive sensing, such as touchpads, [1] can replace the computer mouse. Digital audio players, mobile phones, and tablet computers will sometimes use capacitive sensing touchscreens as input devices. [2] Capacitive sensors can also replace mechanical buttons.
Some capacitive touch-screens can detect the size of the touched area and the pressure used. [ 123 ] Since mid-2010s, most tablets use capacitive touchscreens with multi-touch , unlike earlier resistive touchscreen devices which users needed styluses to perform inputs.
The late 2000s and early 2010s saw a shift in smartphone interfaces away from devices with physical keyboards and keypads to ones with large finger-operated capacitive touchscreens. [36] The first phone of any kind with a large capacitive touchscreen was the LG Prada, announced by LG in December 2006. [37]