Abstract:
A difluoropyridine-based compound includes at least one difluoropyridine group in its molecule. The difluoropyridine-based compound may be used as an electron injection material, an electron transport material, or a hole blocking material in full-color fluorescent or phosphorescent devices. The difluoropyridine-based compound has good electrical characteristics and a high charge transport capability. The difluoropyridine-based compound may be used to produce an organic electroluminescent device with high efficiency, low voltage, improved brightness, and a long life expectancy.
Abstract:
A method and apparatus for synchronizing metadata of different assets referencing the same contents, using a backward-link information file of an asset when metadata of the asset is edited, the method including: editing a metadata of a first asset; detecting a second asset referencing the same content as the first asset using a backward-link information file of content which the first asset refers to; and synchronizing metadata of the second asset with the edited metadata of the first asset. Therefore, it is possible to easily synchronize metadata of assets in a plurality of MPV files referencing the same content.
Abstract:
A method and apparatus for reproducing multimedia data using a MusicPhotoVideo (MPV) profile. The method for reproducing multimedia data using a profile complying with the MPV standard, includes: detecting a reference element indicating that a predetermined profile among a plurality of supported profiles is used, in an MPV document; updating the MPV document using information on a profile corresponding to the detected reference element; and reproducing multimedia data by parsing the updated MPV document. Accordingly, by using the MPV standard profile, multimedia data can be reproduced more efficiently.