Apple iPhone 6s Plus : Display
+ Type : used in mobile phones. They can be either color or monochrome. Monochrome displays on the other hand can be alphanumeric or graphic. Alphanumeric displays can show only symbols with a constant size, while graphic displays can show fonts of different sizes and animations.
The color displays usually are CSTN, TFT, TFD or OLED with a predominant use of TFT displays in current mobile lineups. There are also two types of touchscreen displays - capacitive and resistive, which are both based on TFT technology.
CAPACITIVE touchscreens work by sensing the electrical properties of the human body, while RESISTIVE ones operate by sensing direct pressure applied by the user.
The RESISTIVE type can be activated by pressing not only with human skin but also with a stylus and thus allow handwriting recognition input.
Multitouch : In mobile computing, multi-touch refers to the capability of a touchscreen (or a touchpad) to recognize two or more points of contact on the surface concurrently. The constant tracking of the multiple points allows the mobile phone interface to recognize gestures, which enable advanced functionality such as pinch-to-zoom.
The multi-touch sensing doesn't work on the resistive type of touchscreens (budget touch phones), the capability comes inherited in capacitive touchscreens (majority of touch phones nowadays).
Apple is considered the pioneer of multi-touch technology on mobile phones with their first iPhone. They introduced the pinch-to-zoom gesture that is now available across various platforms.
Protection (Screen protection) : As touchscreen displays are growing larger in recent years, the need for enhanced scratch resistance and protection of the screens created the demand for usage of screen covers of increased resistance including chemically hardened glass.
Corning's Gorilla Glass is a popular brand of hardened glass used for high-end handset in the mobile industry.
Additionally, manufacturers has started applying oleophobic coating on top of its screens to make finger smudges less of an issue.
