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분야
pptxFeatures of OLED
Comparison
Features of OLED
Operation Principle
Functions of a device
Current status of its technology and market
PMOLED
AMOLED
Future perspective
Features of OLED
References
:Organic Light Emitting Diode
Organic means…
→Electroluminescent layer is
:a film of organic compound
(ex. C2, H2, O2, other polymers)
not semiconductor →used in LED
1.Self-luminescence
The biggest difference between LCD is that it is self-luminescence. It means that the diode can emit the light itself so it has the good visibility although there is light coming in from outside.
2. low power consumption, Ultra-thin
Since it doesn't need the backlight it's possible to produce OLED device having low power consumption(half of LCD) and ultra-thin screen(1/3 of LCD, below 2mm thickness is possible)
3. Flexibility
It can be applicable to the curved shape part.
4. Eco-friendly
It is eco-friendly since it doesn't contain the toxic substances such as Hg.
5. Wide viewing angle
Viewing angle is the range of oblique angle which we can see the normal screen. Unlike LCD, the image quality doesn't change though it is seen from just beside.
6. Fast response speed
If we play moving images, the quality of the screen is determined by the response speed. OLED shows natural screen of the moving images which have the similar level with that of the television.
7. High color property
2. http://www.samsungsdi.co.kr
3. http://www.oleddesign.com/oled/oled1.asp
4. http://www.kps.or.kr/storage/webzine_uploadfiles/410_article.pdf
5. 이형락, OLED 기술 및 발광원리, 경북대학교(2007)
6. Organic Electroluminescent displays
Richard H Friend, Cambridge Display Technology 181 A Huntigdon Road Cambridge CB3 ODJ, UK 원고의 일부.
7. 박순미, 김윤학, 이연진, 김정원, “Insertion of an Organic Hole Injection Layer for Inverted Organic Light-Emitting Devices”,한국표준과학연구원
8. Jan Meiss, Felix Holzmueller, Roland Gresser, Karl Leo, and Moritz Riede, Near-infrared absorbing semitransparent organic solar cells, Applied Physics Letters / Volume 99 / Issue 19(2011)
