Sony lays out the how their Super Top Emission OLED display functions.Panasonic's probably works the same way.
"a much more efficient means of utilizing the light produced by the organic material and this method offers lower power consumption and longer life."
"OLED self luminescent displays feature superb video image response times and stunningly vivid color reproduction. Sony has striven to enhance functionality even further with "Super Top Emission" technology. The following provides a look at the basic OLED principles and introduces Super Top Emission."
Use link to read the specific details, and view the charts.
What's this? A post about OLED technology? What's that doing in the OLED technology thread?