<p>➀ Researchers from Hanyang University, Yonsei University, and Sogang University in South Korea have developed a silicon-integrated hole transport layer using microlithography to enhance OLED performance without sacrificing energy efficiency.</p><p>➁ This innovation significantly improves charge balance, resulting in enhanced luminance and reduced crosstalk in OLED displays.</p><p>➂ The new structure achieved an ultra-high resolution of 10,062 pixels per inch (PPI) on a six-inch wafer, opening doors for high-definition OLED displays in VR, AR, smart glasses, wearables, and next-gen smartphones.</p>