AN INNER TUBE FOR SUBLIMATION PURIFICATION APPARATUS

摘要

The present invention relates to an inner tube used for a sublimation purification apparatus for producing organic materials for an organic light emitting display (OLED) and, more specifically, to an inner tube for collecting purified materials. The size and volume of the existing inner tube for the sublimation purification apparatus are limited by the size and volume of the outer tube, resulting in obtaining restricted amounts of purified materials via a single purifying process. Therefore, the present invention provides the inner tube to improve yields of purified materials compared with the existing inner tube.