23 February 2011

Osram Opto’s Multi CHIPLEDs used in FormoLight’s displays

Taiwan-based display maker FormoLight Technologies has developed a high-performance LED video display for indoor and outdoor applications that uses Multi CHIPLEDs from Osram Opto Semiconductors GmbH of Regensburg, Germany to produce high-quality images with brilliant colors and sharp contrasts.

Picture: FormoLight’s LED video displays.

The Multi CHIPLEDs comprise what is claimed to be the smallest RGB LED on the market. Their compact size permits a special image format. In this display for interior use, the LEDs are not used as backlighting (hidden from observers as in LCD appliances), but are clearly visible on the surface. However, they remain undetected by observers, because the Multi CHIPLEDs are very small (1.6mm x 1.6mm and 0.9mm thick) and are barely visible through the black LED housing.

“Information has to be presented clearly in every respect. This concerns not only the concept of visualization, but also the technical reproduction,” explains Sven Weber of Osram Opto. “Excellent image quality is needed, which is easier to realise thanks to the advantages of LEDs, such as their directional characteristics and light quality,” he adds. “The black LED housing reflects almost no ambient light, thus ensuring a perfectly flawless image.” The FormoLight display thus has rich colors, sharp contours and depth of field, showing high-quality images rich in contrast, says Osram Opto.

The firm says that its Multi CHIPLEDs produce a homogenous image from every perspective. Such homogeneity is based on two principles: LEDs can be packed very closely because of their compact size (the distance between pixels can be as little as 2mm); and the special casting material ensures a perfect color mix. The LED contains three chips (red, green, blue) in Thinfilm or ThinGaN technology, each of which can be controlled separately. The color impression remains constant across the entire viewing angle and also appears brilliant viewed from the side, claims Osram Opto. Due to the LEDs’ sharp contrasts and high output, this high image quality is maintained even in very light rooms.

Use of the technology is also worthwhile from an economic perspective, claims the firm: LEDs are characterized by low power consumption and long durability.

Tags: Osram LEDs

Visit: www.osram-os.com

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