There are many various types of display/ touch screens available in the range of smartphones & it is also important to know about them before buying any one of them. Over last one year smartphones with large displays and touchscreens phones have really become popular. In this post we are trying to explain different types of display and touchscreens and their pros and cons.
Various Types of Display and TouchScreens
Thin Film Transistor technology is generally said as TFT. TFT LCD is one of the common types of display used in mobile phones which present better quality of images and higher resolutions as compared to past generation LCD displays but their drawback is that they have poor visibility in sunlight or in direct light & narrow viewing angles. Large TFT displays consume more power and hence battery consumption is high. But since these are cheaper in rate to the manufacture, therefore, these found mostly on featured phones, budget smartphones and lower-end smartphones.
IPS stands for In-Place Switching. If you compare TFT & IPS, then IPS LCDs are said to be ten times better than the normal TFT LCD displays which IPS display has wider viewing angles and their power consumption is low which leads to a minimum usage of the battery also leads to improve battery life. IPS-LCDs are costlier than the TFT LCD and hence are found only on higher end smartphones. A higher resolution is 640 x 960 pixels. The higher version of IPS LCD is used in Apple iPhone 4, therefore, it is also called as Retina Display due to its brilliant picture quality.
3. Touchscreen LCD
Touchscreen LCD displays are of two types –
Resistive Touchscreen LCD
Resistive touchscreens consist of two layers of conductive material which have a very small gap present between them which act as a resistance. The basic mechanism takes place is the touching. When the resistive touchscreen is touched with the finger the two layers meet at the point of touch thus making a circuit complete at the point of touch. The touch is recognized by the mobile’s processor or chip and passed on the mobile’s operating system thereby activating and event or action to function at the point of touch. They are only used in feature touch phones and lower end smartphones.
Capacitive Touchscreen LCD
Capacitive touchscreen technology consists of conductor indium tin oxide on a layer of glass coated with a transparent conductor such as indium tin oxide. When a capacitive touchscreen is touched by a human finger, an interruption is created in the screens electrostatic field which is measurable as a change in capacitance and is detected by phone’s processor or chip and which instructs phone’s operating system accordingly to trigger and event or action.
As compared to the Resistive touchscreen, Capacitive Touchscreens are much better and responsive to human touch and therefore the user experience for touch is much better with capacitive touchscreens. Resistive Touchscreens are not as responsive as capacitive touchscreens and often require a hard point to identify the point of touch accurately Capacitive Touchscreens are mostly used in the higher end smartphones.
OLED is Organic Light Emitting Diode and it is the latest technology for types of display of mobiles and monitors too. OLED technology consists of a layer of organic material mostly carbon based which is sandwich between two conducting sheets an anode and a cathode, which in are sandwiched between a glass top plate i.e seal and a glass bottom plate i.e. substrate. On application of electric pulse the two conducting sheets top & bottom plate directly produces electro-luminescent light from the organic material sandwiched. According to the electric pulse Brightness and color may vary.
OLEDs are much better as compared to LCDs because of their exceptional color reproduction, wider viewing angles, blazing fast response times, extremely light weight designs & higher brightness. It is a rumor that Apple iPhone 8 will have an OLED Display.
AMOLED stands for Active-Matrix Organic Light-Emitting Diode. AMOLED displays are similar to the type of OLED displays for mobiles. They are getting rapidly popular in the top end smartphone segment. AMOLED screens have all similar attributes of an OLED display like brilliant light weight, color reproduction, higher brightness and sharpness, better battery life and light weight designs.
AMOLED displays are mainly used in the latest higher end smartphones like Nokia N8, Samsung Galaxy A9 Pro and are now coming with these displays.
6. Super AMOLED
Super AMOLED displays are advanced or pro version of AMOLED displays which is developed by Samsung. The display 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.
Super AMOLED displays are much more responsive than other AMOLED displays. Samsung’s Samsung Galaxy S7 Edge is one of the best top line smartphone with Super AMOLED display.
7. Retina Display
Retina Display is a term used by Apple iPhone4 for its high resolution (640 x 960 pixels) IPS LCD used by them. The pixels cannot be individually identified by the human eye, therefore making the display brilliant and super sharp. Hence it is said Retina Display.
8. Haptic / Tactile touchscreen
Blackberry and Nokia use Haptic technology for their touchscreen smartphones. This technology provides a tactile feedback on a touch action by providing an immediate and unmistakable confirmation to the user. Haptic technology has been found to drastically improve user performance, satisfaction, and accuracy while typing on a touchscreen.
9. Gorilla Glass
Gorilla Glass is a special made up of alkali-aluminosilicate glass shield with outstanding damage resistance that helps to protect mobile displays from drops, scratches, and bumps of everyday use. Many companies like Motorola, Nokia, and Samsung are now using Gorilla Glass to make their mobile displays more reliable and durable. It is always better to go for a smartphone with Gorilla Glass for that added protection and peace of mind.
Which is the best Mobile Display Type?
Now, the question arises here, among these different types of display what is the best type of mobile display.
If Compared TFT with IPS, IPS is way better than TFT display.If it is OLED vs. AMOLED, AMOLED is the better version of OLED and Super AMOLED is better than AMOLED.
And, there is a great major feature of OLED, AMOLED and Super AMOLED display is, they are Battery Saver.OLED screens produce its own light.It’s producing light When the pixel is white and When the pixel is black, it isn’t producing any light.
But at the end what type of display you want is only depends on you. If you use your mobile mostly to play games or to watch movies then you should go for AMOLED display.However, if internet surfing and document viewing is more your thing, LCD screens are better to do reading or chatting.