Touch screen mobile phone capacitive touch screen and resistive touch screen mainly differ in touch sensitivity, accuracy, cost, feasibility of multi-touch, damage resistance, cleanliness, and visibility under sunlight.
Touch sensitivity, 1. Resistive touch screen: pressure is required to make contact with each layer of the screen, and it can be operated with fingers (even with gloves), nails, stylus, etc. Supporting stylus is very important in the Asian market, where gesture and text recognition are valued. 2. Capacitive touch screen: The subtle touch from the charged finger surface can also activate the capacitive sensing system under the screen. Non-living objects, nails, and gloves are invalid. Handwriting recognition is more difficult.
Precision, 1. Resistive touch screen: The precision is at least a single display pixel, which can be seen when using a stylus. It is convenient for handwriting recognition and helps to operate under the interface with small control elements. 2. Capacitive touch screen: The theoretical accuracy can reach a few pixels, but in practice it will be limited by the finger contact area. This makes it difficult for users to accurately click on targets smaller than 1cm2.
Cost, 1. Resistive touch screen: very cheap. 2. Capacitive touch screen: Capacitive screens from different manufacturers are 10% to 50% more expensive than resistive screens. This extra cost does not matter to flagship products, but it may discourage mid-priced phones.
Multi-touch feasibility, 1. Resistive touch screen: Impossible, unless the circuit connection between the resistance screen and the machine is reorganized. 2. Capacitive touch screen: Depends on the implementation method and software, it has been implemented in G1 technology demonstration and iPhone. The 1.7T version of G1 can already realize the multi-touch feature of the browser.
Tag: Shenzhen Light Touch
