FMM-less OLED production is designed for panels from 1 to 100 inches
LG Display has unveiled FLiPP, its new OLED pixel patterning technology that removes the Fine Metal Mask (FMM) from the manufacturing process. The company is demonstrating the technology at IMID 2026 in Sourth Korea.
According to LG Display, FLiPP increases the OLED aperture ratio by approximately 55% compared with FMM production. Under comparable conditions, the company claims the technology can increase brightness by up to 1.6 times, extend panel lifespan by up to 2.4 times or reduce power consumption by 13%.
FLiPP replaces the metal mask with photolithography
Conventional RGB OLED production uses an FMM as a stencil while red, green and blue organic materials are deposited onto the substrate. This becomes more difficult with larger substrates because the metal mask can sag, while different panel sizes and resolutions require dedicated masks.
© LG Display FLiPP instead deposits RGB materials sequentially and fixes them in position before using photolithography and UV light to remove unwanted areas. LG Display says it has already produced FMM-less OLED panels using an entire 8.5-generation mother glass substrate rather than processing it in divided sections.
© LG Display For laptop-sized panels, LG claims this approach can improve mother-glass utilization by up to 64% compared with FMM or other FMM-less processes that require divided substrates. This should allow more panels to be produced from each substrate while reducing material waste and production costs.
LG Display says FLiPP is not restricted to a specific panel size or resolution. The process can theoretically cover displays ranging from 1-inch wearables to 100-inch TVs , including VR and AR panels. The company plans to start with IT products such as tablets and monitors before expanding FLiPP production to other display categories. No commercial product schedule has been announced yet.
Source: LG Display
