Answer:
In case of Resistive touch: When a touch is made, the flexible screen presses down and touches the bottom layer. A change in electrical current is hence detected and the coordinates of the point of touch is calculated.
In case of Capacitive touch, one side of the insulator is coated with a conducting layer and a uniform electrostatic field is formed over the conductive layer. Whenever, a human finger touches the screen, conduction of electric charges occurs over the uncoated layer which results in the formation of a dynamic capacitor. The computer or the controller then detects the position of touch by measuring the change in capacitance at the four corners of the screen.
So you see, when using resistive touch, we need to press the screen, but with capacitive touch we can just touch the screen.
In case of Capacitive touch, one side of the insulator is coated with a conducting layer and a uniform electrostatic field is formed over the conductive layer. Whenever, a human finger touches the screen, conduction of electric charges occurs over the uncoated layer which results in the formation of a dynamic capacitor. The computer or the controller then detects the position of touch by measuring the change in capacitance at the four corners of the screen.
So you see, when using resistive touch, we need to press the screen, but with capacitive touch we can just touch the screen.
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