Provided is an organic light emitting device that includes an anode, a cathode, a light emitting layer containing a compound of Chemical Formula 1:

##STR00001##

and a hole transport region that includes a compound of Chemical Formula 2:

##STR00002##

the organic light emitting device having improved driving voltage, efficiency and lifetime.

An organic light emitting device including a light emitting layer, which comprises a compound represented by Formula 1 and a compound represented by Formula 2.

##STR00001##

An etchant composition includes: an inorganic acid compound at 9.0 wt % to 9.9 wt %; an inorganic salt compound at 5.0 wt % to 10.0 wt %; an organic acid compound at 35 wt % to 45 wt %; a lactate-based compound at 10 wt % to 20 wt %; a nitrogen cyclic compound containing oxygen at 0.1 wt % to 1.0 wt %; and a remaining amount of water such that a total weight of the etchant composition is 100 wt %, wherein the inorganic acid compound is an etchant composition having an acid dissociation constant (pKa) value of −1.0 to −3.0.

A display device includes: a base substrate; a first pixel electrode, a second pixel electrode, and a third pixel electrode arranged on the base substrate to be spaced apart from each other; a pixel defining film on the first pixel electrode, the second pixel electrode, and the third pixel electrode and including a first opening exposing the first pixel electrode, a second opening exposing the second pixel electrode and spaced apart from the first opening, and a third opening exposing the third pixel electrode and spaced apart from the first opening and the second opening; a first organic layer on the first pixel electrode exposed by the first opening; a second organic layer on the second pixel electrode exposed by the second opening; and a third organic layer on the third pixel electrode exposed by the third opening.

A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode and including an emission layer, wherein the first electrode includes a metal oxide having a work function value of about −5.3 eV or less, and the interlayer includes a layer including a compound of Formula 1:

##STR00001##

wherein, in Formula 1, the variables are described herein.

A material for an organic electroluminescent device that is excellent in hole injection and transport abilities, electron blocking ability, stability in a thin film state, and durability is provided as a material for an organic electroluminescent device having high efficiency and high durability. Further, an organic electroluminescent device having low driving voltage, high efficiency, and a long lifetime is provided by combining the material with various materials for an organic EL device that is excellent in hole and electron injection and transport abilities, electron blocking ability, thin film stability, and durability, in such a manner that the characteristics of the materials can be effectively exhibited. An organic electroluminescent device comprising at least an anode, a hole transport layer, a light emitting layer, an electron transport layer, and a cathode in this order, wherein the hole transport layer comprises an arylamine compound of the following general formula (1). ##STR00001##

A conductor includes a plurality of metal nanostructures and an organic material, where a portion of the organic material surrounding each of the metal nanostructures is selectively removed, and the conductor has a haze of less than or equal to about 1.1, a light transmittance of greater than or equal to about 85% at about 550 nm, and a sheet resistance of less than or equal to about 100 Ω/sq. An electronic device includes the conductor, and a method of manufacturing a conductor includes preparing a conductive film including a metal nanostructure and an organic material, and selectively removing the organic material from the conductive film using a cluster ion beam sputtering.

To provide a material for an organic EL device that is excellent in hole injection and transport abilities, electron blocking ability, thin film stability, and durability, as a material for an organic EL device with high efficiency and high durability, and also to provide an organic EL device having a high efficiency, a low driving voltage, and a long lifetime by combining the material with various materials for an organic EL device that is excellent in hole and electron injection and transport abilities, electron blocking ability, thin film stability, and durability. An organic electroluminescent device comprising at least an anode, a hole transport layer, a light emitting layer, an electron transport layer and a cathode in this order, wherein the hole transport layer comprises a carbazole compound of the following general formula (1), and the light emitting layer comprises a blue light emitting dopant. ##STR00001##

The invention relates to an organic electronic component comprising a cathode, an anode, at least one light-emitting layer which is arranged between the anode and the cathode, a first layer, which comprises a first matrix material and a dopant, a second layer, which comprises a second matrix material, wherein the first layer is arranged between the second layer and the anode, wherein the second layer is arranged between the anode and the at least one light-emitting layer, wherein the dopant is a fluorinated sulfonimide metal salt of the following formula 1: ##STR00001##

An organic light-emitting diode (OLED) display panel is provided, including a base substrate and an anode. The base substrate includes a display region and a non-display region. A dam region having a blocking wall is in the non-display region. The anode is positioned on the base substrate and extended into the dam region from the display region. The blocking wall is on a surface of the anode. A first portion of the anode includes a first conductive layer, a metal thin film layer, and a second conductive layer stacked one above another. A second portion of the anode includes a portion of the metal thin film layer, and the second portion is positioned at least in the dam region.