Inkjet printing system and technology to increase light output efficiency of light emitting elements

摘要

The present teachings relate to various embodiments of ink compositions. The ink composition is printed on a substrate and cured to produce a second pattern of polymer areas having a first index of refraction (RI) having a RI that is higher than the RI of the polymer areas of the first pattern. Forming a continuous composite membrane layer interspersed within the polymer area of the pattern. Various embodiments of composite thin film layers thus formed on a substrate provide enhanced light output, or light extraction, in various light emitting devices according to the present teachings such as, but not limited to, OLED displays or OLED illuminators. It can be adapted for efficiency.