An organic light-emitting device includes a condensed cyclic compound represented by Formula 1, where at least one of X.sub.4 to X.sub.11 is C(R.sub.x), and R.sub.x is a group represented by Formula 2: ##STR00001## The condensed cyclic compound represented by Formula 1 has a planar conformation because of the single bond linking the 8 and 8′ positions of the spirobifluorene moiety. Accordingly, the condensed cyclic compound may provide the organic light-emitting device with suitable hole mobility and thermal stability.

An organic light-emitting device includes a condensed cyclic compound represented by Formula 1, where at least one of X.sub.4 to X.sub.11 is C(R.sub.x), and R.sub.x is a group represented by Formula 2: ##STR00001## The condensed cyclic compound represented by Formula 1 has a planar conformation because of the single bond linking the 8 and 8′ positions of the spirobifluorene moiety. Accordingly, the condensed cyclic compound may provide the organic light-emitting device with suitable hole mobility and thermal stability.

The invention relates to compounds comprising functional substituents in a specific spatial arrangement, devices containing same, and the preparation and use thereof.

The invention relates to compounds comprising functional substituents in a specific spatial arrangement, devices containing same, and the preparation and use thereof.

The present specification relates to a compound, a coating composition including the same, and an organic light emitting device.

The present invention relates to a compound of the following formula (I). The invention also relates to uses thereof as a chromophore as such or for building pigments displaying special optical effects, including metal-like reflection. ##STR00001##

The present invention relates to a compound of the following formula (I). The invention also relates to uses thereof as a chromophore as such or for building pigments displaying special optical effects, including metal-like reflection. ##STR00001##

A novel composition formed of a first compound is disclosed where the first compound is selected from ##STR00001##

A novel composition formed of a first compound is disclosed where the first compound is selected from ##STR00001##

An organic light emitting device including: a substrate; a first electrode; a second electrode; and an organic layer interposed between the first electrode and the second electrode and including an emission layer, wherein one of the first electrode and the second electrode is a reflective electrode and the other is a semitransparent or transparent electrode, and wherein the organic layer includes a layer having at least one of the compounds having at least one carbazole group, and a flat panel display device including the organic light emitting device. The organic light emitting device has low driving voltage, excellent current density, high brightness, excellent color purity, high efficiency, and long lifetime.