Oslon LX LEDs facilitate ultra-thin displays

Measuring just 3 x 3 x 1.6mm, the two white versions of the new Oslon LX LEDs are perfect for side injection into light guides with a thickness of 2 to 4mm so the displays can be made with ultra-thin profiles.

Thanks to the optimised lens, the light can be injected into light guides with exceptional efficiency.

This enables the manufacture of ultra-thin and uniform displays with LEDs mounted along one edge only.

The compact LED format and the high light-output of typically 75 or 90 lumens a minute at 350mA is sufficient to inject the light from two edges or even from only one side to provide uniform backlighting for computer monitors and 65in TVs.

The integrated polynomial lens with a beam angle of 125 degrees achieves an injection efficiency into the light guide of almost 80 per cent.

The Oslon LX is available for two colour spaces.

The multi-white version (High Color Gamut White) covers 100 per cent of the sRGB colour space and has a typical light output of 75 lumens a minute.

The ultra-white version of the LED covers 80 per cent of the sRGB colour space and is a little brighter, with a typical light output of 90 lumens a minute.

Winifred Schwedler, marketing manager for LCD backlighting at Osram Opto Semiconductors, said: 'Manufacturers that require only 80 per cent of the sRGB standard, such as in data processing or industrial applications, can opt for the more efficient ultra-white version, enabling them to achieve the required brightness level with fewer LEDs and with up to 30 per cent savings in costs.

'So every customer can have precisely the LEDs that they need for their particular application.' Oslon LX is manufactured using the latest Thingan chip technology with chip-level conversion and provides high optical efficiency and uniform light distribution.

The lens is optimised for maximum light extraction and its beam characteristic ensures a high injection efficiency of almost 80 per cent.

The substrate and lens materials are optimised for long lifetimes, exceeding those of CCFL (cold cathode fluorescent lamp).

These LEDs feature a design that is ideal for side injection into light guides for manufacture of displays with very thin profiles.

TVs equipped with Oslon LX LEDs will be premiered at the 2009 IFA exhibition in Berlin from 4-9 September.