OLED

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In connection with the MID technology, the organic light diodes maintain their flat structure and can simultaneously be equipped with a housing and the required electronics and connection technology.

Description

Advantages of OLED technology

  • glare-free, uniform area light source
  • good color rendering and high-quality light
    without delay
  • warm light color, giving a friendly and comforting
    atmosphere
  • no UV/IR radiation, so ideal for lighting sensitive
    objects
  • mercury-free and RoHS compliant

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OLED – modern lighting solutions with special features

The organic light-emitting diode is a component that, like the normal LED, is used for lighting. It consists of several layers and usually has a very flat structure. A housing produced using MID (Mechatronic Integrated Devices) technology and incorporating laser-structured conductor paths is suitable for accommodating the OLED as well as the electronic parts. The optimum flat structure is thus retained.

Structure and operating principle of an OLED

Organic LEDs consist of at least four layers. A hole transport layer is applied to the anode. On top of this there is an emissive layer containing the colour which determines the colour of the light. The final layer is the cathode. Between the individual layers there are often protective and separating layers. When electricity is applied the cathode emits negative electrons, whereas the anode provides the positive charge carriers. Positive and negative charge carriers move towards each other and meet in the emissive layer. The reaction of the two charge carriers creates light in the desired colour tone.

Advantages of MIDs and OLEDs

MIDs are often used for components which should take up as little space as possible. The flat structure of the OLED is retained by using an MID. An MID is extremely well-suited for space-saving installation of lamps. In addition it can be equipped with customised electronic parts or using connection technology making the unit tailor-made to the particular area of application. The flat structure and low heat generation make the OLED an excellent lighting solution for monitors. They also possess an extremely fast reaction time as well as requiring much less energy than LCD monitors. This is of particular interest for battery-operated devices as the monitor consumes a large proportion of the energy. The mechanical properties are a further advantage of the OLED. Due to the materials used the illuminated area is bendable. This contrasts sharply with the normal LEDs which are in danger of breaking under the smallest of loads. This makes the use of OLEDs for the production of flexible monitors possible.

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