The difference between mobile phone capacitance and inductance

(capacitive screen) high price, high sensitivity, but there is no place on the finger

(Resistive screen) Cheap price Fingers or sticks can be controlled. Some small corners can also be effectively touched.

First, Induction method

1. Capacitive screen, electrostatic induction, requires the conductor to touch the screen to respond, so it does not need to be very hard, as long as the finger touches the screen to be recognized. Then, the ordinary stylus can not be used for the capacitive screen, and the capacitive screen has a special stylus with static electricity.

The advantage of the capacitive screen is that it is sensitive and supports multi-touch, which is more suitable for entertainment and playing games.

The downside is that you can't pinpoint it. For example, when editing a document, it's not so easy to click on a word or punctuation.

2. Resistance screen, pressure sensing, need to use force to respond, so some girls always feel that the resistance screen is not sensitive, in fact, because she did not force the screen, as long as the force is right, the resistance screen is quite sensitive.

The advantage of the resistive screen is that it can be accurately positioned and suitable for business applications such as editing documents.

The disadvantage is that multi-touch is not supported and the sensitivity is not as high as the capacitive screen.

Second, touch sensitivity.

1. Resistive touch screen: It is necessary to use pressure to make contact with each layer of the screen. You can use your fingers (even with gloves), nails, stylus, etc. to operate. Support for stylus is important in the Asian market, where gestures and text recognition are valued.

2, capacitive touch screen: the most subtle contact from the surface of the charged finger can also activate the capacitive sensing system at the bottom of the screen. Non-living objects, nails, and gloves are invalid. Handwriting recognition is more difficult.

Third, the accuracy

1, the resistance touch screen: the accuracy of at least a single display pixel, can be seen with the stylus. It is easy to recognize by hand and helps to operate under the interface of small control elements.

2, capacitive touch screen: theoretical accuracy can reach several pixels, but in fact will be limited by the finger contact area. It is difficult for the user to accurately click on a target of less than 1 cm 2 .