Abstract: The present disclosure provides an organic light emitting device including a first electrode, a second electrode provided to face the first electrode, and an organic material layer including a light emitting layer provided between the first electrode and the second electrode, and the light emitting layer including a compound represented by Formula 1, a compound represented by Formula 2, and a compound represented by Formula 3.

Abstract: A hydrogen supply method includes a two-side heat exchange mode in which both introducing a second fluid into a hydrogen storage part after the second fluid exchanges heat with a first fluid in a second heat exchanger in a state in which a compressor is driven to compress the first fluid and introducing the second fluid into the hydrogen storage part after the second fluid is heated or cooled in the thermal device are performed. The method also includes a one-side heat exchange mode in which one of introducing the second fluid into the hydrogen storage part after the second fluid exchanges heat with the first fluid in the second heat exchanger in a state in which the compressor is driven to compress the first fluid and introducing the second fluid into the hydrogen storage part after the second fluid is heated or cooled in the thermal device is performed.

Abstract: A method of manufacturing a carbon nanotube field emitter for field emission displays by electrophoresis is disclosed. The method of manufacturing involves: first, loading an electrode plate and the field emitter substrate, which are spaced apart from one another, into an electrophoresis bath containing a carbon nanotube suspension for the electrophoresis; second, applying a predetermined bias voltage from a power supply between the electrode plate and the cathodes of the field emitter substrate to deposit, at room temperature, carbon nanotube particles on the surface of the electrodes exposed through the holes of the dielectric film; and third, drawing the field emitter substrate, on which the carbon nanotube particles have been deposited, out of the electrophoresis bath, and heating the field emitter substrate with carbon nanotube tips at a predetermined temperature. An efficient low-temperature process, incorporating low cost carbon nanotube particles, provides for a lower manufacturing cost.