Title :
Microlens Array Film with Full Fill Factor for Enhancing Outcoupling Efficiency from OLED Lighting
Author :
Kwon, Hyouk ; Yee, Youngjoo ; Jeong, Chi-Hwan ; Nam, Hyo-Jin ; Park, Ki-Won ; Lee, Gun-Woo ; Bu, Jong-Uk
Author_Institution :
LG Electron. Inst. of Technol., Seoul
Abstract :
This paper reports a microlens array (MLA) film with full fill factor and presents its application to organic light emitting diode (OLED) for improving outcoupling efficiency. Gapless MLA film having high sag ratio is proposed and fabricated by simple micromachining process including trench formation and conformal vapor phase deposition of polymer. As applying MLA film to OLED panel, the outcoupling efficiency increased by maximum 48%. High-sag MLA optical film with full fill factor is expected to give remarkable optical efficiency to various display or lighting applications of the flat panel light sources including OLED.
Keywords :
microlenses; micromachining; optical arrays; organic light emitting diodes; vapour deposition; OLED lighting; conformal vapor phase deposition; full fill factor; microlens array film; micromachining; organic light emitting diode; outcoupling efficiency; polymer; sag ratio; trench formation; Flat panel displays; Lenses; Light sources; Micromachining; Microoptics; Optical arrays; Optical films; Optical polymers; Organic light emitting diodes; Polymer films; MLA film; Microlens array; OLED; full fill factor; high-sag; outcoupling efficiency;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems Conference, 2007. TRANSDUCERS 2007. International
Conference_Location :
Lyon
Print_ISBN :
1-4244-0842-3
Electronic_ISBN :
1-4244-0842-3
DOI :
10.1109/SENSOR.2007.4300324
