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Types of OLED:
1.AMOLED
AMOLED stands for active matrix organic light emitting diode. In AMOLED a thin film transistor backplane directly access and switch each individual pixel on or off thus allowing for higher resolution and larger display sizes.
2.PMOLED
PMOLED stands for passive matrix organic light emitting diode. In PMOLED each line or row in the display is controlled sequentially one after another.
Advantages of OLED:
1.OLED displays can be fabricated on flexible plastic substrate so it is possible to manufacture light weight and flexible OLED display devices.
2.Since OLED pixels emit light directly, it gives better picture quality with sharp contrast and wider viewing angles.
3.In near future OLED displays will be cheaper to manufacture.
4.An inactive OLED element does not produce light thus consuming less power.
5.An inactive OLED element produce true black, so reduce the additional substrate required, thus making the display thinner.
6.Response time of OLED is also quick.
Disadvantages of OLED:
1.Due to the organic material used, the life span of OLED display is less.
2.Water can damage the OLED display.
3.Outdoor performance of OLED display is poor due to high refection of OLED screen in bright ambient light.
4.OLED material used to produce blue light degrade rapidly with time as compared to materials used to produce other colours thus affecting the colour balance of the screen.
Application of OLED technology:
1.Improved image quality with sharp contrast.
2.Ultra thin flexible display
3.Transparent display
So as we can see OLED has changed the display technology for good but we must understand that there is still a need for improvement. The disadvantages should be properly dealt with otherwise a new display technique will replace it.
WATCH THE FOLLOWING VIDEO TO KNOW ABOUT OLED DISPLAYS:
Image courtesy of Goldy at FreeDigitalPhotos.net
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