An OLED is a light-emitting diode in which the emissive electroluminescent layer is a film of organic compound which emits light in response to an electric current. This layer of organic semiconductor is situated between two electrodes. Generally, at least one of these electrodes is transparent. OLEDs are used to create digital displays in devices such as television screens, computer monitors, portable systems such as mobile phones, handheld games consoles and PDAs. A major area of research is the development of white OLED devices for use in solid-state lighting applications. There are two main families of OLEDs: those based on small molecules and those employing polymers. Adding mobile ions to an OLED creates a light-emitting electrochemical cell or LEC, which has a slightly different mode of operation. OLED displays can use either passive-matrix or active-matrix addressing schemes. Active-matrix OLEDs require a thin-film transistor backplane to switch each individual pixel on or off, but allow for higher resolution and larger display sizes. An OLED display works without a backlight. Thus, it can display deep black levels and can be thinner and lighter than a liquid crystal display. In low ambient light conditions such as a dark room an OLED screen can achieve a higher contrast ratio than an LCD, whether the LCD uses cold cathode fluorescent lamps or LED backlight.
dole, leod, lode, olde
The numerical value of OLED in Chaldean Numerology is: 1
The numerical value of OLED in Pythagorean Numerology is: 9
Sample Sentences & Example Usage
In the near future OLED products will be foldable and flexible.
The real question is whether Apple can or should jump in one step from a flat LCD to a curved screen OLED ?
If we thought that would be possible within the next two to three years, we'd have to launch our own OLED product.
OLED has very big potential for the future but I don't see any breakthrough into mass production in the next two years.
For some LCD panel manufacturers, OLED production may be too much of an investment, especially when that may result in increased competition against their own LCD products, producing OLED panels means taking on an enormous amortization cost ... and there may be a long interim period before seeing profits.
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