A phone's resistive screen is essentially a sensor that uses pressure sensing to pinpoint the point of touch. When we touch the screen with fingers or other similar objects, there are two conductive touch screens set inside the resistive touch screen. When the layers come into contact with each other immediately, screen manufacture，a series of changes will occur in the resistance value, and the controller at the other end can detect this subtle change, thereby judging the coordinates of the contact point according to a certain measurement method.
The disadvantage of resistive touch screens is that they can only respond quickly to one touch point at a time, and if there are too many touch points, the response will be slow.
Therefore, according to the characteristics of the resistive screen, it is not difficult to think that the resistive touch screen is only suitable for actions such as clicking and dragging, and it will have a certain impact on the line of sight at the bottom of the screen. Sunlight.
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