The other qualities which make it better than others are refresh rate, contrast ratio, no back light, less power consumption, weight, and wide viewing angle.
All manufacturers are moving towards displays without bezels. As display technology develops, the bezel width will reduce even further. OLED technology will provide more opportunities to reach a zero bezel width.
LG's OLED TV uses four base colors White, Red, Green, and Blue through a color filter. Other types of OLED uses only 3 base colors that are tuned to provide a full range of colors without the need for a fourth sub-pixel.
The OLED TV can be the thinnest than any other TV technology. Samsung, Panasonic, Sony and LG are all preparing to release a range of OLED televisions with a thickness of as little as 4mm.
The basic OLED TV design (called a "True-OLED" TV) uses 3 color OLED sub-pixels (Red, Green and Blue) to create each 'pixel'. But some companies are using a different archicture, called WOLED-CF which uses four white OLED subpixels with color filters on top (RBG and W). This is also called a RGBW design. The WOLED-CF technology was developed by Kodak (and the IP is now owned by LG Display), and it should make the OLED panel easier to make. However it will also be less efficient. LG Display's OLED TVs which will be released in 2012 will be based on this design.
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White OLED refers to the LG technique of adding a white LED to the red, green and blue LEDs in their OLED display panels. LG claim that it produces more faithful reproduction than just using red, green and blue elements. Whether or not that is the case is a matter of opinion. Before investing, it is always important to audition several models of television. Compare LG's white OLED screen to other OLEDs and you can decide whether LG have made an improvement.
OLED: Organic Light Emitting Diode.
The actual price hasn't been disclosed by any of the brands who unveiled their OLED TVs.
OLED's are brighter than LEDs, OLED's do not require Backlighting. They are easier to produce and can be made to larger sizes. They are expensive, water easily damages them.
It is very true that everyone can not afford OLED TV. The expected price of LG OLED TV is into five figures. But it will be better confirmed when OLED TV will be launched.
ETL in OLED stands for Electron Transport Layer. It is a component of an OLED device that facilitates the movement of electrons from the cathode to the emissive layer, where light is generated. The ETL helps improve the efficiency and performance of OLED displays by providing a path for the electrons to reach the emissive layer.
The early OLED models from other manufacturers have adopted the conventional use of red, green and blue LEDs to generate an image. LG models need a fourth, white LED to adjust for the balance of their RGB drive. TO decide which is the more effective, get to see several OLED televisions and make your own judgment. Don't be in too much of rush to buy OLED television. They will be dropping in price in the next year or so by large amounts.