LG solves the "last piece of the OLED puzzle" by improving blue pixel efficiency and lifespan

LG improves blue pixel efficiency and lifespan in OLED displays using tandem OLEDs and a mix of blue phosphorescent and fluorescent materials.

: LG tackles inefficiency and shorter lifespan of blue OLED pixels using a two-stack tandem structure and new materials. This innovation promises a 10-20% increase in display efficiency and reduced pixel burn-in. Apple introduced a similar concept in their 2024 iPad Pros but did not address the blue pixel issue directly. LG's Dream OLED may be adopted by phone makers in the near future.

LG addresses the inefficiency and shorter lifespan of blue OLED pixels by implementing a two-stack tandem structure and using a mix of blue phosphorescent and fluorescent materials. This new development, referred to as Dream OLED, promises a 10-20% increase in display efficiency, reducing pixel strain and extending the lifespan of blue pixels. Universal Display Corporation provides the blue phosphorescent material.

Burn-in issues mainly arise from the faster degradation of blue pixels, as they require more power to match the luminance of red and green pixels. LG's Dream OLED aims to resolve this problem effectively. Various mitigation methods like pixel dimming and shifting have been employed previously but did not substantially address the core issue.

Apple's 2024 iPad Pros introduced a similar tandem OLED concept, improving brightness and lifespan without focusing specifically on blue pixel efficiency. LG plans to evaluate Dream OLED for mass production within the year, with commercialization expected in one to two years. If successful, phone manufacturers might be among the first to adopt this battery-saving feature.

OLEDblue pixelsdisplay