UL Solutions evaluated black levels of various displays in a brightly illuminated environment of 500 lux. This is similar to the brightness of a living room in broad daylight. Through this assessment process, LG Display's OLED panels were shown to deliver black levels of 0.15 nit. By achieving a black level that is around 40% lower than standard 'Perfect Black' criteria of 0.24 nit, LG Display's OLED was able to become the first existing panel to receive the 'Perfect Black' verification.