Example embodiments provide a compound of Chemical Formula 1, and an organic photoelectric device, an image sensor, and an electronic device including the same.

Provided is an organic light-emitting device including a first electrode, a second electrode, an emission layer between the first electrode and the second electrode, and a hole transport region between the first electrode and the emission layer, wherein the hole transport region includes an auxiliary layer, the auxiliary layer including at least one amine-based compound represented by Formula 1: ##STR00001##
where R.sub.11, R.sub.12, R.sub.13, R.sub.14, R.sub.15, R.sub.16, X.sub.11, L.sub.11, L.sub.12, L.sub.13, a11, a12, a13, b15, and b16 are as defined in the specification.

The invention relates to compounds which are suitable for use in electronic devices, and electronic devices, in particular organic electroluminescent devices, containing said compounds.

A new leuco dye produces a yellow color while demonstrating also exceptional light and thermal stability under light.

An object is to provide a light-emitting element having high light-emission efficiency by provision of a novel fluorene derivative as represented by General Formula (G1) below. ##STR00001##
In the formula, R.sup.1 to R.sup.8 independently represent any of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted biphenyl group. Further, α.sup.1 to α.sup.4 independently represent any of a substituted or unsubstituted arylene group having 6 to 12 carbon atoms. Furthermore, Ar.sup.1 and Ar.sup.2 independently represent any of an aryl group having 6 to 13 carbon atoms in a ring and Ar.sup.3 represents an alkyl group having 1 to 6 carbon atoms or a substituted or unsubstituted aryl group having 6 to 12 carbon atoms. J, k, m, and n each independently represent 0 or 1.

The present invention provides a green coloring composition for use in a color filter, which can form a green colored film having low incident-angle dependence and improves the color-separation properties of a solid-state imaging device including the colored film; and a colored film, a color filter, and a solid-state imaging device. The green coloring composition for use in a color filter of the present invention is a green coloring composition for use in a color filter, containing a green colorant, a near-infrared absorbent, and a polymerizable compound, in which when the green coloring composition for use in a color filter is used to form a colored film having a film thickness of 0.8 μm, the maximum value of the transmittance at a wavelength from 400 nm to 450 nm of the colored film is 5% or less, the maximum value of the transmittance at a wavelength from 500 nm to 600 nm of the colored film is 70% or more, the minimum value of the transmittance at a wavelength from 650 nm to less than 700 nm of the colored film is 20% or less, and the minimum value of the transmittance at a wavelength from 700 nm to 900 nm of the colored film is 30% or less.

Disclosed is a fluorescent compound for the detection of isocyanate substances, a preparation method therefor and use thereof as a test-paper-type detection probe. The fluorescent compound is 2,4-di(((4′-(diphenylamino)-[1,1′-biphenyl]-4-yl)imino)methyl)phenol. The fluorescent compound is prepared by means of a one-step method. The fluorescent compound has simple and convenient preparation with high yield, and is capable of making a rapid and specific response to isocyanate substances. Moreover, the fluorescence intensity of the fluorescent compound will enhance with the increase of the isocyanate concentration. The fluorescent compound can be made into a portable test-paper-type probe for the detection of isocyanate substances in air, and can achieve the visual detection of volatile isocyanate gases. The probe has an aggregation-induced emission effect, and thus it has higher fluorescence quantum yield when using a test-paper-type probe for detection.

An organic light-emitting device comprises an anode, a cathode and a light-emitting layer between the anode and the cathode. The light-emitting layer comprises a compound of formula (I): ##STR00001## wherein Ar.sup.1, Ar.sup.2, Ar.sup.3, Ar.sup.6 and Ar.sup.7 in each occurrence independently represent an unsubstituted or substituted aryl or heteroaryl group; X independently in each occurrence represents S or O; R independently in each occurrence represents H or a substituent; p is 0 or 1; q is 0 or 1; f is 1, 2 or 3; g is 1, 2 or 3; and adjacent groups Ar.sup.3 or adjacent groups Ar.sup.2 may be linked by a divalent group to form a ring. This compound can provide a bluer emitter that can be blended into current host formulations (deep blue, CIEy<0.08) suitable for solution processing.

Provided are a novel aromatic amine derivative having a specific structure and an organic electroluminescence device in which an organic thin layer comprising a single layer or plural layers including a light emitting layer is interposed between a cathode and an anode, wherein at least one layer of the above organic thin layer contains the aromatic amine derivative described above in the form of a single component or a mixed component. Thus, the organic electroluminescence device is less liable to be crystallized in molecules, improved in a yield in producing the organic electroluminescence device and extended in a lifetime.

This application relates in part to an organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and an organic layer(s) including a light emitting layer, in which the organic layer(s) contains a compound represented by the following formula (1), in which R.sup.1 to R.sup.8 are each hydrogen or a substituent, at least one of R.sup.1 to R.sup.4 and at least one of R.sup.5 to R.sup.8 are each a substituent represented by the formula (2); R.sup.9 to R.sup.12, Z.sup.1 to Z.sup.4, Ar.sup.1, Ar.sup.2, and L.sup.1 are as defined herein. ##STR00001##