Abstract: Disclosed are a slidable filtration apparatus capable of performing reciprocating motion in a filtration tank and a filtration system including the same. The filtration apparatus includes a frame and a membrane module installed in the frame, wherein the frame includes at least two horizontal linear motion members provided at an upper portion thereof.

Abstract: Disclosed herein is a film-type photodegradable transfer material, comprising: a support film; a resin protection layer; a photodegradable photoresist layer; and a cover film, wherein the resin protection layer has an adhesion force of 0.05 kgf or less. When the film-type photodegradable transfer material is used to form a fine circuit pattern, such as a printed circuit board or the like, the resolution of the pattern can be increased by minimizing the distance between a mask and a photosensitive resin layer at the time of exposure, and work can be performed in the form of a sheet or a roll to roll process can be applied to the work even when the support film has been removed before an exposure process.

Abstract: Disclosed herein is a film-type photodegradable transfer material, comprising: a support film; a resin protection layer; a photodegradable photoresist layer; and a cover film, wherein the resin protection layer has an adhesion force of 0.05 kgf or less. When the film-type photodegradable transfer material is used to form a fine circuit pattern, such as a printed circuit board or the like, the resolution of the pattern can be increased by minimizing the distance between a mask and a photosensitive resin layer at the time of exposure, and work can be performed in the form of a sheet or a roll to roll process can be applied to the work even when the support film has been removed before an exposure process.

Abstract: The present invention relates to luminescence materials for an organic electroluminescent device (OELD), and particularly to phenyl pyridine-iridium metal complex compounds of formula (1), and preparation method thereof. In addition, the present invention relates to an organic electroluminescent device using the luminescence materials according to the present invention, which can greatly enhance the efficiency of luminescence and increase the operating life time of the device: wherein R1, R2 and R3 each are the same as defined in the specification.

Abstract: The present invention relates to luminescence materials for an organic electroluminescent device (OELD), and particularly to phenyl pyridine-iridium metal complex compounds of formula (1), and preparation method thereof.