Osram Displix LED for extreme conditions
Robust multichip LED for high-contrast displays in outdoor applications
The high-quality multichip LED is available as Displix black in a black package with a black reflector and as Displix blackprint in a white package with black overprinting and white reflector. Displix black offers excellent contrast even in direct sunlight and offers precise color rendering even after a long operating time. Their brightness values are also impressive. The typical light intensity at the Illuminant D65 white point (at a color temperature of 6504 Kelvin), is 1450 millicandela (mcd) at an operating current of 20 milliamps, which appears very bright in the black package. Under the same operating conditions Displix blackprint is even more intense at 2950 mcd with good contrast.
The 4.5 x 4.5 x 2.1 mm package for both Displix versions contains three chips with typical wavelengths of 625 nm (red), 528 nm (green) and 470 nm (blue). This means that individual LEDs do not have to be combined into an RGB cluster. This reduces the pixel spacing and improves the resolution for the same area. Sven Weber, Marketing Manager for LED Displays at Osram Opto Semiconductors, said: "People are more and more used to seeing HD images in their homes and on HD compatible devices so the requirements placed on outdoor displays are changing. The two new Displix versions enable long-life displays with high resolution, high intensity and excellent contrast to be produced for a wide variety of applications."
Thanks to SMT technology the LEDs can be processed at reduced cost. With a height of 2.1 mm there is enough space for further standard processes such as silicon encapsulation for added protection against harsh outdoor conditions. Special shading elements can also be easily fitted. Both measures extend the life of the LED, which may be more than 100,000 hours depending on the ambient temperature. At the same time they provide the basis for long-term stability. This is evidenced by the approval of the components for various harsh ambient conditions such as specialty corrosive gases, aging in direct sunlight and resistance to heavy rain.
The Displix LEDs can be seen for the first time at electronica 2012 (November 13 to 16 in Munich) on Booth 107 in Hall A3.
For more technical information on the two Displix LEDs (LRTB GFUG und LRTB GRTG) see the product catalog.
Osram Opto Semiconductors GmbH
OSRAM GmbH, a wholly owned subsidiary of Siemens, is one of the two leading lighting manufacturers in the world. Its subsidiary, OSRAM Opto Semiconductors GmbH in Regensburg (Germany), offers its customers solutions based on semiconductor technology for lighting, sensor and visualization applications. Osram Opto Semiconductors has production sites in Regensburg (Germany) and Penang (Malaysia). Its headquarters for North America is in Sunnyvale (USA). Its headquarters for the Asia region is in Hong Kong. Osram Opto Semiconductors also has sales offices throughout the world. For more information go to www.osram-os.com.
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