AMOLED – What is it?

AMOLED stands for (active-matrix organic light-emitting diode). It is a display technology used in mobile phones, watches, laptops and televisions. It uses a thin film display technology in which organic compounds from electroluminescent material is brought into the action, along with it active matrix technology is used to address the pixels.

This concept was used in mobile phones in the year 2008. And in the same year it found its place in digital cameras and other media devices and further it continued to made progress in an efficient way, by making efficient power control, low cost and large-size applications.

The main fabricators of this technology are AU OPTRONICS and SAMSUNG. SAMSUNG has marketed this by the name “SUPER AMOLED”.

DISADVANTAGES:

The major disadvantage is related to the life span of the OLED films used, that is the red and green OLED films have longer life spans when compared to the blue OLED films. And the major effect of this is the variation in color as the color shifts as a particular pixel fades faster than the other pixels.

Another disadvantage of AMOLED displays is the SCREEN BURN IN issue, which leaves an imprint of the overused colors which in turn is caused due to over used images.

 

HOW IS AMOLED WHEN COMPARED TO OTHER TECHNOLOGIES:

AMOLED displays provide higher refresh times which mainly reduces the response time to less than a millisecond, and this technology consumes less power. This advantage makes the active matrix OLED’s very well suited for electronics, where power consumption is always an issue related to the battery life. AMOLED display has higher contrast ratios than that of the LCD; the main reason for this is the black pixel turn off completely due to the above matrix technology used.

COMPARISION:

Below is a mapping table of marketing terms versus resolutions and sub-pixel types. Note how the pixel density relates to choices of sub-pixel type.

TermResolutionSize (inches)PPIPixel LayoutUsed in
AMOLED240×3202.6154RGBG PenTileNokia N85
AMOLED Capacitive Touchscreen640×3603.2229RGBG PenTileNokia C6-01
Super AMOLED3.5210RGB S-StripeNokia N8
4.0184RGB S-StripeNokia 808 PureView
720×7203.1328RGB S-StripeBlackBerry Q10
854×4803.9251RGBG PenTileNokia N9
800×4804.0233RGBG PenTileSamsung Galaxy S
960×5404.3256RGB S-StripeSamsung Galaxy S4 Mini
1280×7684.5332RGBG PenTileNokia Lumia 1020
Super AMOLED Plus800×4804.3 (4.27)218RGB stripeSamsung Galaxy S II
Super AMOLED Advanced960×5404.3256RGBG PenTileMotorola Droid RAZR
HD Super AMOLED1280×8005.3 (5.29)285RGBG PenTileSamsung Galaxy Note
1280×7205.0295RGB S-StripeBlackBerry Z30

Samsung Galaxy J7

Samsung Galaxy J5

Samsung Galaxy E5

4.7 (4.65)316RGBG PenTileSamsung Galaxy Nexus
4.7 (4.65)316RGB S-StripeMoto X (1st generation)
4.8306RGBG PenTileSamsung Galaxy S III
5.6 (5.55)267RGB S-StripeSamsung Galaxy Note II
5.6 (5.55)267RGB S-StripeSamsung Galaxy Note 3 Neo
HD Super AMOLED Plus1280×8007.7197RGB stripeSamsung Galaxy Tab 7.7
Full HD Super AMOLED1920×10805.5400RGBG PenTileMeizu MX5
5.0 (4.99)441Samsung Galaxy S4
5.0 (4.99)441OnePlus X
5.0 (4.99)441Google Pixel
5.2423Motorola Moto X (2nd gen)
5.1432Samsung Galaxy S5
5.5401OnePlus 3

OnePlus 3T

OnePlus 5

5.7388Samsung Galaxy Note 3
WQHD Super AMOLED2560×14405.1577RGBG PenTileSamsung Galaxy S6

Samsung Galaxy S6 Edge

Samsung Galaxy S6 Active

Samsung Galaxy S7

Samsung Galaxy S7 Active

5.2564Microsoft Lumia 950
5.2565Motorola Droid Turbo
5.4540BlackBerry Priv
5.5534BlackBerry DTEK60

Samsung Galaxy S7 Edge

Google Pixel XL

Alcatel Idol 4S

Moto Z

Moto Z Force

ZTE Axon 7

5.7515Samsung Galaxy Note 4

Samsung Galaxy Note 5

Samsung Galaxy S6 Edge+

Nexus 6P

Samsung Galaxy Note 7

5.7518Microsoft Lumia 950 XL
2960×14405.8571Samsung Galaxy S8
6.2529Samsung Galaxy S8+
6.3521Samsung Galaxy Note 8
WQXGA Super AMOLED2560×16008.4359RGBG PenTileSamsung Galaxy Tab S 8.4
10.5287RGB S-StripeSamsung Galaxy Tab S 10.5

 

 

 

About Abhishek Malvadkar

This WWF aficionado has got as much interest when it comes to tech and knowing more than any jack and jill about any gadget hitting the stores goes to be his forte!

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