1) OLED TV does not suffer from motion lag or motion blur as does LCD displays. In fact, OLED technology has the fastest response rate time of any type of display due to utilizing TFT active matrix (AMOLED) technology with the organic light emitting diodes.
2) OLED TV screens have near perfect viewing angle. OLEDs create light (are emissive) rather than block light. Every pixel is lit independently and that light will be seen from off axis viewing angles easily and accurately, also like plasma TV technology.
3) OLED TVs have one solid layer of plexiglass-like material which is extremely thin and light and contains all of the color compounds and TFT material needed. Therefore, the OLED panel is flexible (as in non-breakable) as well.
4) OLED televisions utilize slight electric currents to excite a combination of organic phosphorescence encased in a plastic substrate. OLED needs very little power to operate so in theory should last for a very long time as the parts are not taxed significantly. One weakness here is the blue organic LED compound which may die before the red and green compounds.
5) OLED TV will be the most energy efficient TV technology ever produced. It takes hardly any power to energize the organic light emitting molecules located in the emissive layer of the substrate.
6) OLED televisions may one day be flexible, cardboard thin and large enough to cover an 9' X 9' wall.
7) OLEDs response rate is even faster than plasma and there is no motion lag or trailer effect either.
8) OLED TVs and monitors will have the advantage of no screen burn in.
9) Due to superior technological efficiencies in manipulating lighter, simpler carbon based material, generating deeper blacks, brighter whites and all the gray scales in between should be a great strength of OLED.
1) Price. Development costs are currently too high to economically develop larger screen sizes. But remember, plasma and LCD display technology started there as well.