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What is the screen type of smartphones?
There are many different types of screen types available across the range of smartphones and it is important that we know about them before buying one. The screen also contributes in test of screen types to know their Contrast Ratio, Color Calibration, Brightness and Sunlight Legibility.
Screen types include:
TFT stands for Thin Film Transistor technology. While LCD stands for Liquid Crystal Display displays which consist of a matrix of Liquid Crystals. LCD displays can be very visible in direct sunlight. TFT LCDs are the most common type of display units used across mobile phones. TFT LCD offer better image quality and higher resolutions compared to earlier generation LCD displays but their limitation lies in narrow viewing angles and poor visibility in direct light or sunlight.
IPS stands for In-Place Switching. LCDs are superior to normal TFT LCD displays with wider viewing angles and consumes less power which leads to a much improved battery life. IPS-LCDs are more expensive than normal TFT LCD. This has become a common display type for mid-range to high-end phones.
OLED stands for Organic Light Emitting Diode and is a newer technology for type of displays of mobiles and monitors. It utilizes ‘organic’ LEDs which emits light and in the majority of cases does away with the need for the back-light of an LCD display resulting in a potentially thinner panel. In OLED technology a layer of organic material (carbon based) is sandwiched between two conducting sheets (an anode and a cathode), which in turn are sandwiched between a glass top plate (seal) and a glass bottom plate (substrate). OLEDs produce exceptional than LCDs and also has fast response times, wider viewing angles, higher brightness and extremely light weight designs.
AMOLED stands for Active-Matrix Organic Light-Emitting Diode. It also utilizes ‘organic’ LEDs which emits light and in the majority of cases does away with the need for the back-light of an LCD display resulting in a potentially thinner panel. AMOLED displays are a type of OLED displays for mobiles and are rapidly gaining popularity in top end smartphone segment.
The Super AMOLED displays are an even advanced version of AMOLED displays developed by Samsung. It is built with touch sensors on the display itself, as opposed to creating a separate touch sensitive layer (as in capacitive touchscreen). This makes it the thinnest display technology on the market.