DEPOSITION SOURCE FOR DEPOSITING ORGANIC EL LAYER, CAPABLE OF PREVENTING MATERIAL VAPOR FROM BEING CONGEALED BY MAINTAINING TEMPERATURE OF UPPER MEMBER

摘要

PURPOSE: A deposition source for depositing an organic EL(Electro-Luminescence) layer is provided to prevent material vapor from being congealed by maintaining the temperature of an upper member by suppressing heat dissipation to the outside of the deposition source. CONSTITUTION: A deposition source for depositing an organic EL layer includes a sidewall member(21B), a bottom member(21D), an upper member(21A) having a vapor efflux aperture(21A-1), a cover(22), and upper and lower reflectors(32,31). The sidewall member includes a heater heating a vapor material. The cover is attached to the upper member while fixed on the sidewall and includes an aperture corresponding to the vapor efflux aperture. The upper and lower reflectors include an aperture corresponding to the apertures on the upper member and the cover. The reflectors are implemented on the cover to prevent the heat from emitting outside.