LG Display starts mass producing its 4th-Gen WOLED gaming monitors, developed a 540Hz QHD panel

In January 2025, LG Display  unveiled its 4th-Gen OLED large-area (WOLED) panel technology, that is able to deliver up to 4,000 nits of brightness, using a new stack structure that has two layers of blue emitters and two more layers, one with red emitters and one with green emitters. LGD refers to this architecture as a "Primary RGB Tandem structure".

Today LG Display announced that it has started to mass produce OLED gaming monitors based on the 4th-Gen WOLED panel technology. LGD's first panel is a 27-inch 280Hz panel that delivers a peak brightness of 1,500 nits (quite lower than the potential 4,000 nits that its 4th-Gen technology enables). LG says that this panel offers the highest color reproduction rate among existing OLED panels (99.5%).

LG Display incorporated a special film and improved the internal panel structure to reduce screen glare, and says that the new panel blocks 99% of internal and external light reflections. The new panel maintains perfect picture quality without color distortion even under lighting conditions of 500 lux - the brightness of a living room in broad daylight. This has enabled the panel to obtain certifications for Perfect Black, Perfect Color, and 100% Color Fidelity from global organizations such as UL Solutions and Intertek.

In addition to this panel, LGD also says that it has developed an OLED monitor panel that supports a 540Hz refresh rate with QHD resolution. LG's previous panels supported up to 480Hz resolution and that required a resolution reduction to FHD. Using the company's proprietary Dynamic Frequency & Resolution (DFR) technology, the panel can reach up to 720Hz in HD resolution. This explains Super Display's 720Hz panel announcement earlier this month. The 540Hz panel will enter mass production in the second half of 2025.