Abstract:
Provided is an organic light-emitting diode including a compound of Formula 1 below: wherein a detailed description of a substituent in Formula 1 above is defined as described in the detailed description.
Abstract:
According to example embodiments, a laser optical system includes a laser generator, at least one scan module, an objective lens, a relay lens, a review optical system, and a control device. The laser generator is configured to generate a laser beam. The at least one scan module is configured to reflect the laser beam generated by the laser generator and to direct the laser beam in different directions. The objective lens is configured to focus the laser beam on a substrate. The relay lens is configured to guide the laser beam scanned by the at least one scan module to within an incident range of the objective lens. The review optical system is configured to monitor, in real time, repair of the substrate using the laser beam. The control device is configured to control the at least one scan module.
Abstract:
Provided are a novel anthracene derivative and an organic light-emitting device using the same, and more particularly, an anthracene derivative having a core (e.g., an indenoanthracene core) where an anthracene moiety with excellent device characteristics is fused with a fluorene moiety or the like with excellent fluorescent properties, wherein an aryl group is introduced at the core, and an organic light-emitting device using the anthracene derivative, which is enhanced in efficiency, operating voltage, lifetime, etc.
Abstract:
An apparatus for refining an organic material includes an outer tube, a plurality of inner tubes in the outer tube and including at least one loading inner tube for loading an organic material to be refined and comprising a first loading boat and a second loading boat above the first loading boat in the loading inner tube, and at least one collecting inner tube for collecting refined organic material, a heating unit outside the outer tube, and a vacuum pump coupled to the outer tube for providing low pressure in the outer tube and the inner tubes.