ORGANIC LIGHT EMITTING DIODES

SEMINAR ON ORGANIC LIGHT EMITTING DIODES : Scientific research in the field of organic semiconductor materials as active substance light emitting diodes (LEDs) has grown significantly over the last four decades. organic semiconductors has been reported in the 60: s and materials which is regarded as a mere scientific curiosity. (They are called organic because they consist mainly of carbon, hydrogen and oxygen.). But when it was recognized in the eighties that many of them are photoconductive to visible light, attracted the interest of the sector. Many major electronics companies like Philips and Pioneer, are now a lot of money to invest in biological science electronic and optoelectronic devices. The main reason for the great attention to these devices is that possibly could be much more effective than modern components it is the consumption of energy and light produced. Single light emitters in the day, light Diodes (LEDs) and light bulbs use more energy than organic products LEDs do. And seek to reduce energy consumption is still something about it. Other causes of attention is the fact that industrial organic color finally displays will replace today's liquid sample crystal (LCD) used in laptops and
Maybe one day replace our conventional CRT.
Organic light devices (OLED), operate on the principle of conversion electrical energy into light, a phenomenon known as electroluminescence. Exploit properties of some organic materials that emit light when electricity passes through them. simplest form, an OLED consists of layers of this luminescent material sandwiched between two electrodes. When an electric current passed between the electrodes through the organic layer, the light emitted by a color depends on the particular material. In order to observe the light OLED, at least one of the electrodes must be transparent. When used as pixel OLED flat panel displays have certain advantages more backlit active matrix LCD screens - a wider viewing angle, light weight, and to react more quickly. Because only a portion of the display is really back to consume power, the power the most effective use OLEDs become less available. Based on these advantages, OLEDs have been proposed for a wide range of Display applications, such as microdisplay enlarged, wearable, head-mounted computers, digital cameras, personal digital assistants, pagers, smart virtual reality games, and mobile phones, as well as medical, automotive and other industries applications.