LEDs (light-emitting diodes) are used for backlighting in an increasing number of medium- and large-format displays. The consumer-electronics sector is assuming a pioneering role in these products, with many ultra-flat TV appliances now featuring LED backlighting. The question is, can the new backlight technology also be suitable for industrial applications?
The major challenge with industry displays is to combine the advantages of LED backlighting with the standards required of industrial applications in terms of temperature resistance and robustness. The wish list of requirements that design engineers place on backlighting for industrial displays is a long one. They require a high level of brightness with good uniformity, extensive dimmability, low weight, low power consumption, long life cycle over a broad temperature range and high mechanical resilience – and these are just a few parameters. Further, requirements include long-term availability and low costs.
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