High Refractive Index Inkjet Formulations to improve OLED outcoupling efficiency

Breakthroughs in advanced materials are driving the next generation of OLED displays, sensors, and extended reality (XR) devices. Not surprisingly, high‐index materials are now considered an essential enabling technology for these next‐gen displays. The inks must deliver excellent film quality and precise patterning via various patterning techniques with high RIs, high transmission and low haze. For OLED displays, improved light outcoupling via structured MLAs is one key approach towards improving light outcoupling efficiency and brightness while lowering energy consumption. In parallel, inkjet printing has emerged as an established coating technique on display production lines. Until now, conventional display manufacturing technologies relied on polymer‐based materials. Refractive indices (RIs) for these materials typically top out at 1.6. In contrast, Pixelligent’s PixJet® and PixNIL® products deliver RIs ranging from 1.65 to 2.0. In his talk, Pixelligent’s Vice President of Product Development and Strategy, Neil Pschirer, will discuss the innovation behind the company’s materials including PixCor™, the only commercially available material that delivers refractive indices > 1.80, with the highest optical clarity, while dramatically improving UV stability.