Display Gyaan

SCREENS 

Resistive Display

here are two factors when talking about displays. One is kind of display technology used and the other is the kind of touch technology overlaying it. The AMOLED technology has a great demand in the market but still a large section of phones still utilise LCD (Liquid Crystal Display) technology. Within these LCD space, the most commonly are the TFT (Thin-Film-Transistor) display. TFTs are not that great technology since they don't have good viewing angles, have poor visiblity in sun and consume more power. The other type is IPS (In-Plane-Switching) technology found in few rare phones like the iPhone 4 and Droid X. Apple calls this as 'retina' display which is merely a market gimmickry. However the IPS display looks brilliant, thanks to their crystal moleculs which are oriented in such a way that their motion is parallel to the panel than perpendicular. in the AMOLED ( Active-Matrix Organic Light-Emitting Diode) displays, organic compounds form the electroluminescent material making them quite vibrant and with great contrast. The super-AMOLED technology which are used in the latest WAVE and GALAXY take things a step furthur to improve clarity by placing the touch sensors on the screen itself rather than placing a seperate layer. This helps in improving the viewing angles and makes it wafer thin. Speaking about the touch screens, they are of 2 types - resistive and capacitive. Resistive is the more primitive technology which used two layer for display and for touch. Capacitive uses the modern technology with just one screen which is used for both displaying and touch. This technology works with the powerful processors which calculate the position of the finger and proceeds accordingly.