DEPOSITION SOURCE FOR DEPOSITING ORGANIC LIGHT EMITTING LAYER, CAPABLE OF PREVENTING MATERIAL VAPOR FROM BEING EXHALED BY SUPPRESSING HEAT EMISSION

摘要

PURPOSE: A deposition source for depositing an organic light emitting layer is provided to prevent material vapor from being solidified around an aperture by using a heat shielding layer formed on a cover. CONSTITUTION: A deposition source is heated by applied power, and emits material vapor outside to form a deposition material layer on a substrate. The deposition source includes a sidewall member(21B), a bottom member(21C), an upper member(21A), a cover(31), and a heat shielding layer(41). The sidewall member includes a heating unit to apply heat to a deposition material. The upper member includes an aperture for emitting the material vapor. The cover is implemented on the upper member by being fixed on the sidewall member and includes an opening(31-1) corresponding to the aperture in the upper member. The heat shielding layer is formed on the cover and includes another opening at a position corresponding to that of the opening of the cover.