LG Displays Private Booth
January 14, 2019
Not surprisingly, LG put most of its emphasis on OLED TVs. The company showed the new version of the OLED C9 TV. Peak brightness was measured to 838 nits (5% at D65), which are about 100 nits higher than the B7 last year. DCI-P3 coverage was a single percentage point higher but this may just come down to panel variation. LG explains that it has made some refinements to how the Alpha 9 processor retains highlight details (in the sky, clouds etc.) and compared to at least the 2016 OLED generation visible improvements are recognizable. It is hard to say how much improvement there is over last year’s models without having one side-by-side, but there was plenty of room for improvement in the HDR standards that can define up to 100% Rec.2020 colors and up to 10,000 nits peak brightness. Full 100%” means that the full screen is white. OLED panels start to reduce peak brightness between 10% and 25%.
Figure 1: LG’s OLED TV C9 – Luminance vs. Window Size
Although, improvements have been limited in in recent years, the OLED TVs still excel when compared to the best LCD TVs. HDR is a very important step for the TV industry and probably the one single factor to be considered when buying a new TV. There is still a lot of potential in HDR but OLEDs have not yet unleashed the full potential although they do deliver the best HDR picture quality across movies, TV series, games, and other types of content.
Figure 2: LG C9 – Frame Insertion Demo
LG showed the C9‘s use of frame insertion for 120 Hz and compared the capability to the B7 and there were noticeable improvements in some fast moving images. What wasn’t noticeable was the difference between 8K OLED TVs and 4K TVs, when showing a 4K image. LGD also had a very mature OLED auto console and they demonstrated 55” transparent OLEDs used in retail sales.