title: Light diffusing effects of nano and micro-structures on OLED with microcavity.
abstract: We examined the light diffusing effects of nano and micro-structures on microcavity designed OLEDs. The results of FDTD simulations and experiments showed that the pillar shaped nano-structure was more effective than the concave micro-structure for light diffusing of microcavity OLEDs. The sharp luminance distribution of the microcavity OLED was changed to near Lambertian luminance distribution by the nano-structure, and light diffusing effects increased with the height of the nano-structure. Furthermore, the nano-structure has advantages including light extraction of the substrate mode, reproducibility of manufacturing process, and minimizing pixel blur problems in an OLED display panel. The nano-structure is a promising candidate for a light diffuser, resolving the viewing angle problems in microcavity OLEDs.
authors.forename: Doo-Hee
authors.initials: DH
authors.lastname: Cho
authors.forename: Jin-Wook
authors.initials: JW
authors.lastname: Shin
authors.forename: Chul Woong
authors.initials: CW
authors.lastname: Joo
authors.forename: Jonghee
authors.initials: J
authors.lastname: Lee
authors.forename: Seung Koo
authors.initials: SK
authors.lastname: Park
authors.forename: Jaehyun
authors.initials: J
authors.lastname: Moon
authors.forename: Nam Sung
authors.initials: NS
authors.lastname: Cho
authors.forename: Hye Yong
authors.initials: HY
authors.lastname: Chu
authors.forename: Jeong-Ik
authors.initials: JI
authors.lastname: Lee
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008029:Lighting / Q000295:instrumentation*; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D008904:Miniaturization; D009930:Organic Chemicals / Q000737:chemistry*; D012542:Scattering, Radiation; D012666:Semiconductors; D020349:Surface Plasmon Resonance / Q000295:instrumentation*
chemical_list: D009930:Organic Chemicals