An organometallic compound represented by Formula 1:

M(L.sub.1).sub.n1(L.sub.2).sub.n2  Formula 1

wherein M is a transition metal, L.sub.1 is a ligand represented by Formula 2-1, L.sub.2 is a ligand represented by Formula 2-2 or a ligand represented by Formula 2-3, n1 and n2 are each independently 1 or 2, when n1 is 2, two L.sub.1 are identical to or different from each other, and when n2 is 2, two L.sub.2 are identical to or different from each other, and L.sub.1 and L.sub.2 are different from each other,

##STR00001##

wherein the groups in Formulae 2-1, 2-2, and 2-3 are each independently as described herein.

A color conversion film having: a substrate film, a color conversion layer provided on the substrate film and a phase transformation adhesive layer including an adhesive resin matrix and a phase change material, and a backlight unit and a display apparatus including the color conversion film.

Platinum, palladium, and gold complexes suitable for use as phosphorescent emitters or as delayed fluorescent and phosphorescent emitters having one of the following structures:

##STR00001## ##STR00002## ##STR00003##

The present specification relates to a compound represented by Chemical Formula 1, and a color conversion film, a backlight unit and a display apparatus including the same.

The present specification relates to a color conversion film comprising a color conversion functional layer including a microcapsule phase change material, and a backlight unit and a display apparatus including the same.

The present disclosure relates to an organic compound having the following structure, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound includes an electron donor moiety separated from an electron acceptor moiety, thus has delayed fluorescent properties. Applying the organic compound into an emissive layer makes the OLED and the organic light emitting device can allows the OLED and the organic light emitting device to improve their luminous efficiency.

##STR00001##

Compounds comprising phosphorescent metal complexes comprising cyclometallated ligands having a structure of ##STR00001##
In the vgs3, each of the E.sup.1 atoms is selected from C and N, except that E.sup.1g is selected from C, N, and S. The E.sup.1 atoms collectively comprise an 18 pi-electron system, provided that E.sup.1a and E.sup.1p are different. The R.sup.1 substituents are each, independently, H, hydrocarbyl, heteroatom substituted hydrocarbyl, cyano, fluoro, OR.sup.2a, SR.sup.2a, NR.sup.2aR.sup.2b, BR.sup.2aR.sup.2b, or SiR.sup.2aR.sup.2bR.sup.2c, where the R.sup.2 substituents are each, independently, hydrocarbyl or heteroatom substituted hydrocarbyl. Any of the R.sup.1 or R.sup.2 substituents can be linked to form a saturated or unsaturated, aromatic or non-aromatic ring, provided that the R.sup.1 substituents are not present when the corresponding one of E atoms is N or S. Organic light emitting diode devices comprising these compounds are also described.

To provide an electrochromic compound represented by the following general formula (1) where X.sup.1 and X.sup.2 are each independently a carbon atom or a nitrogen atom, R.sup.1, R.sup.2 and R.sup.3 are each independently a halogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted alkoxy group, x is an integer selected from 0 through 3, y and z are each independently an integer selected from 0 through 4, and at least one of L.sup.1 and L.sup.2 is a monovalent functional group bonded to a nitrogen atom of a pyridinium ring directly, or via a divalent substituent. ##STR00001##

Glucose-sensing luminescent dyes, polymers, and sensors are provided. Additionally, systems including the sensors and methods of using these sensors and systems are provided.

A light-emitting device is described that includes a plurality of partially drivable light sources, and a color conversion component configured to convert at least part of incident light from at least part of the light sources and emit outgoing light falling in a different wavelength region from the incident light, where the color conversion component includes a pyrromethene derivative.