Friday 20 July 2018
 
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Samsung QLED TVs ‘free of burn-in, afterglow’

SEOUL, 7 days ago

All 2018 Samsung QLED TV series were proved free of burn-in and afterglow in tests conducted by video, an acclaimed German tech magazine in conjunction with the connect Testlab, a global testing lab.

The requirements for TV displays are made ever more demanding by technologies such as High Dynamic Range (HDR). The risk of putative burn-in is of particular concern to TV customers in the premium segment.

To see if displays stand up to the exacting performance requirements, the TV experts from video and connect Testlab carried out certification test based on the Information Display Measurements Standard (IDMS), an international norm for panel measurements, and concentrated on QLED TV’s HDR content display quality.

Samsung’s QLED TVs passed the stress test and received the certificate for ꞌno burn-inꞌ and ꞌno afterglowꞌ. In a 72-hour endurance test, the testers performed measurements on Samsung QLED TVs to check their putative burn-in effects, which may be caused by static picture elements. These effects, also referred to as ꞌmemory effectꞌ, ꞌghostingꞌ, ꞌimage retentionꞌ, ꞌsticky imageꞌ or imprecisely as ꞌburn-inꞌ, tangibly impair the picture quality of a television.

In the case of some display technologies, memory effects will start glowing after one minute of TV use if static picture elements are shown on their screen in high luminosities. In the test, the TVs were therefore made to display a checkerboard pattern for deep black and very bright white values for longer periods of time.

The test engineers added variable text elements and an intermittently blinking white frame to the test picture so that the automatic stills detection customary for modern HDR TVs could not spring into action. This helped the testers create similar conditions as in HDR games. In addition to the standard analysis, the testers used dark gray images with brightness values of 10 nits– which will show if dark pixels are brightened up.

The measurements showed that the tested Samsung QLED TVs remained unaffected by the rigorous tests. The TV can thus theoretically be left on permanently without picture elements like network logos leaving an afterglow or burning in.

Taking into account that the quality of a TV screen is strongly impaired by afterglow and burn-in – especially after emitting HDR quality pictures with extreme brightness values – Samsung QLED TV is a product of choice among many other modern TVs for those planning to invest in a high-end TV. It guarantees powerful visual capabilities without potential memory effects or permanent damage.
 
“Anyone who is particularly sensitive to ghost images and unwilling to run any risks over many years of use will be on the safe side with LCD or QLED, respectively,” concluded the test experts. – TradeArabia News Service




Tags: Samsung | QLED TV |

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