One of the worlds leading TV research Companies Display Search has dented Sony's TV reputation by claiming that their OLED TV is not up to scratch and that fails to deliver the 30,000 hours of TV viewing they promised when the product was launched at the recent CES Show in Las Vegas earlier this year.

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 a serious product that puts Sony back in the forefront of television display technology? Or is it a primarily promotional vehicle that over-leverages a technology that's not yet ready for prime time in TVs?

According to Display Search Sony's much-hyped 11" XEL-1 OLED TV has failed to live up to expectation and during testing of the lifespan of OLED, the company ran two XEL-1 screens alongside each other for 1,000 hours before measuring the change in brightness. Crunching numbers, the company worked out the screen lifespan to be around 17,000 hours - or 5.8 years at eight hours a day  which is half of Sony's 30,000-hour claim.

Sony is standing by its own figure saying it has years of testing to back it up, but this still keeps the longevity of OLED as a technology in the spotlight.