What’s so great about OLED? Lots! Blazing fast response times, wide viewing angles, exceptional color reproduction, outstanding Contrast levels, and high Brightness. The nature of its technology lends itself to extremely thin and lightweight designs along with the ability to use it in a variety of different applications. OLED is the holy grail of TV Display technologies!
What is OLED? OLED stands for Organic Light Emitting Diode. The "organic" in OLED refers to organic material. Carbon is the basis of all organic matter. Examples of carbon-based substances include sugar, wood and the majority of plastics. The "LED" stands for "Light Emitting Diode" and describes the process of converting electric energy into light. There are two types of OLED – small molecule OLED and polymer OLED. Sony uses the small molecule type because it has a longer lifespan.
How does OLED work? A Layer of organic material is sandwiched between two conductors (an anode and a cathode), which in turn are sandwiched between a glass top plate (seal) and a glass bottom plate (substrate). When electric Current is applied to the two conductors, a bright, electro-luminescent light is produced directly from the organic material.
How is color created? : OLED has more control over color expression because it only expresses pure colors when an electric Current stimulates the relevant Pixels. The OLED primary color matrix is arranged in red, green, and blue Pixels, which are mounted directly to a printed circuit board. Each individual OLED element is housed in a special "micro-cavity" structure designed to greatly reduce ambient light interference that also works to improve overall color Contrast. The thickness of the organic Layer is adjusted to produce the strongest light for each of the colors – red, green and blue - used to render the color picture. The three colors are further refined by a color filter, which purifies each color without the need for a polarizer, rendering outstanding color purity.
What’s next for OLED? Sony established a milestone with the introduction of the industry’s first Organic Light Emitting Diode (OLED) television, the XEL-1. This 11" diagonal desktop color television is just the first step Sony is taking in the world of OLED televisions. Larger screen sizes and higher native resolutions are possible. As substrates get thinner, the displays will in turn get thinner.