The difference of LCD and AMOLED screen in Mobile

With the increasingly widespread use of large touch screen as the primary input device on mobile devices, the display quality becomes increasingly important because it determines the user's convenience in using the gadget in question.

Various terms such as AMOLED, IPS, and the Retina display is used as an appendage specific device display technology to attract buyers.

However, in general there are two main types of screens used on most mobile devices, namely LCD and AMOLED. Differences following advantages and disadvantages of both will KompasTekno cover in this article.

LCD

Layout pixel layar LCD In-Plane Switching milik LG Optimus 4X HD (gambar:bestboyz.de)

LCD or Liquid Crystal Display has been used as display a wide range of devices for decades, ranging from computer monitors, screen smartphone, to watch.

As the name implies, the LCD screen using the medium of liquid crystals sandwiched between a couple of panes of glass or other transparent material.

When seen from very close range, the units seem pixels of red, green, and blue that make up the image on the LCD screen.

Some LCD screens using the technology In-Plane Switching or IPS to improve color reproduction and viewing angles wider optimal. Screen "Retina Display" property of the iPhone 4/4s for example, is the LCD screen with IPS technology that has a high resolution.

Color LCD display capable of reproducing very realistic, but requires additional torch light (backlight) because it does not produce its own light.

Some of the popular devices that use LCD screens: iPhone 4/4s, iPad, and HTC One X

AMOLED

Layout pixel AMOLED screen with a "PenTile display" HTC's One S (image: bestboyz.de)

Technology AMOLED or Active Matrix Organic Light Emitting Diode actually been around a long time, history extending up to decades of the 50's.

Later, this type of screen is applied in the bustling gadget devices because it has some advantages over LCD as it does not require backlight lamp and has a higher contrast.

AMOLED screen (left) had a higher contrast than LCD (image: oled-display.net)

AMOLED is made of a thin layer of an organic polymer that lights up when powered. Because of the simple construction, AMOLED display can be made ​​very thin.

Most of the AMOLED screen has a pixel structure called "PenTile display", in which the two sub-pixels of red and blue larger size and placed between two sub-pixels, green normal sized. With kemikian, its pixel array to 'Red-Green-Blue-Green (RGBG), not Red-Green-Blue as the LCD.

The advantage of the "PenTile display" is a bright AMOLED display screen can be made conventionally with only one-third the number of sub-pixels are usually required.

The drawback, due to the size of the sub-pixels of red and blue larger, the screen looks "grainy" or looks like it has a low resolution, even though it is not the case.

AMOLED screens are usually difficult to see under direct sunlight beam, but the technology Super AMOLED Plus from Samsung that does not use the "PenTile display" has given improvement in this regard.

Some of the popular devices that use AMOLED screens: Samsung Galaxy S series, the Nokia Lumia 900, and HTC One S.