Philips launches new technology for OLED production, film coverage reduces consumables
Recently, the reporter learned that scientists at the Aachen Fraunhofer Institute have developed a new OLED production method for Philips. The use of new methods will effectively reduce the waste of raw materials.
Prior to this technology, OLEDs were fabricated by applying liquid crystal molecule-related materials to glass substrates. After the panel is formed, the excess material is removed. But the drawback of this technology is that it wastes a lot of raw materials.
The new technology is carried out in a film-covered manner. The film is covered on a glass substrate, and the useful material is left on the glass plate by processing, leaving only a small amount of waste, thereby reducing waste of raw materials.
The Schottky Diode is another type of semiconductor diode which can be used in a variety of wave shaping, switching and rectification applications the same as any other junction diode. The main adavantage is that the forward voltage drop of a Schottky Diode is substantially less than the 0.7 volts of the conventional silicon pn-junction diode.
Schottky diodes have many useful applications from rectification, signal conditioning and switching, through to TTL and CMOS logic gates due mainly to their low power and fast switching speeds.
the Schottky Diode also known as a Schottky Barrier Diode is a solid-state semiconductor diode in which a metal electrode and an n-type semiconductor form the diodes ms-junction giving it two major advantages over traditional pn-junction diodes, a faster switching speed, and a low forward bias voltage.
The metal–to-semiconductor or ms-junction provides a much lower knee voltage of typically 0.3 to 0.4 volts compared against a value of 0.6 to 0.9 volts seen in a standard silicon base pn-junction diode for the same value of forward current.
Variations in the metal and semiconductor materials used for their construction means that silicon carbide (SiC) Schottky diodes are able to turn [ON" with with a forward voltage drop as little as 0.2 volts with the Schottky diode replacing the less used germanium diode in many applications requiring a low knee voltage.
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