Merck KGaA, has announced a €20 million expansion of its OLED manufacturing capacity at sites in Pyeongtaek, Korea, and Shanghai, China. This comes in response to growing demand, the company said.

The investment will be spent on building a new modular production system to facilitate the installation of additional sublimation units. These units are central to material purity, which is one of the most important factors in the performance and lifetime of OLED devices.