[Breaking Down OLED TV] High Full On/Off Contrast Ratio [Part 10]

Dec 26, 2007
Nikkei Electronics Breakdown Team
Measurement of contrast ratio (longitudinal axis: contrast ratio, horizontal axis: ambient illumination)
Measurement of contrast ratio (longitudinal axis: contrast ratio, horizontal axis: ambient illumination)
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The Nikkei Electronics Breakdown Team disassembled Sony's OLED TV, reporting about it on the Tech-On! Website and in the Nikkei Electronics magazine. Next, we went on to measure the TV's display properties.

First, we measured the contrast ratio. A high ratio was expected as the TV utilizes a self-emitting OLED panel. When displaying black, the TV reportedly features a high full On/Off contrast ratio because the light emitting material will not emit light.

We conducted the measurements with the help of a panel engineer and found that the TV was true to its reputation. Under the condition where the illuminance of ambient light is extremely low, the contrast ratio exceeded the limit of the engineer's measurement instrument.

When measured in an ambient illumination of 100Lx, which is an environment similar to that in an ordinary office, the contrast ratio was 369:1.

We measured a variety of display properties in addition to the contrast ratio. The results showed that Sony had made various efforts to fully utilize the OLED panel, which still face many challenges. The details will be published in the Dec 31, 2007 issue of Nikkei Electronics.