An organometallic compound represented by Formula 1A: ##STR00001## wherein, in Formula 1A, groups and variables are the same as described in the specification.

A display substrate and a display apparatus are provided. The display substrate includes: a display region and a non-display region, the non-display region including a fan-out region and a bending region; a plurality of sub-pixels located in the display region; a plurality of first data signal lines located in the display region and electrically connected with the plurality of sub-pixels; a plurality of fan-out wires located in the fan-out region; a plurality of second data signal lines located in the bending region; and a plurality of transfer lines located in the fan-out region and between the plurality of fan-out wires and the plurality of second data signal lines, wherein a ratio of a width of at least part of the plurality of transfer lines to a width of the plurality of fan-out wires is 0.5 to 5.5.

There is provided a photodetector element including a first electrode layer; a second electrode layer; a photoelectric conversion layer provided between the first electrode layer and the second electrode layer; an electron transport layer provided between the first electrode layer and the photoelectric conversion layer; and a hole transport layer provided between the photoelectric conversion layer and the second electrode layer, in which the photoelectric conversion layer contains an aggregate of semiconductor quantum dots that contain a metal atom and contains a ligand coordinated to the semiconductor quantum dot, the hole transport layer contains an organic semiconductor, and the second electrode layer is formed of a metal material containing at least one metal atom selected from Au, Pt, Ir, Pd, Cu, Pb, Sn, Zn, Ti, W, Mo, Ta, Ge, Ni, Cr, or In. There is also provided an image sensor including the photodetector element.

A light-emitting device includes: a first electrode; a second electrode facing the first electrode; an interlayer between the first electrode and the second electrode and including an emission layer; and at least one organometallic compound of Formula 1:

##STR00001##

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

Provided are organometallic compounds including a ligand L.sub.A of the following Formula I

##STR00001##

Also provided are formulations including these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.

A compound including a first ligand L.sub.A of Formula I,

##STR00001##

is disclosed. In Formula I, ring B is a 5- or 6-membered ring; X.sup.1, X.sup.2, and X.sup.3 are each CR.sup.A or N; R is a 5- or 6-membered carbocyclic or heterocyclic ring, which can be further fused or substituted; and (1) when ring B is an unfused 6-membered ring, X.sup.1 and X.sup.2 are N, and X.sup.3 is C; and (2) when ring B is a fused 6-membered ring, ring B has the structure of Formula II,

##STR00002##

In this structure, the wavy line indicates the point of connection to ring A; Q.sup.1 to Q.sup.6 are each C or N; and, when proviso (2) applies, (I) at least one of X.sup.1, X.sup.2, and X.sup.3 is N; or (II) R is two or more fused or unfused 5- or 6-membered carbocyclic or heterocyclic rings, or (III) at least ring A or R is substituted with a partially or fully deuterated alkyl or partially or fully deuterated cycloalkyl group.

The present specification provides a heterocyclic compound represented by Chemical Formula 1, an organic light emitting device comprising the same, a composition for an organic material layer of an organic light emitting device, and a method for manufacturing an organic light emitting device.

Provided is a compound of Formula I

##STR00001##

in which at least one moiety A, moiety B, moiety C, or moiety D is a 6-membered carbocyclic or heterocyclic ring, and at least one R.sup.A, R.sup.B, R.sup.C, or R.sup.D includes a group having Formula II

##STR00002##

where R.sup.X can be silyl, germyl, boryl, nitrile, F, CF.sub.3, cycloalkyl, heterocycloalkyl, or monocyclic heteroaryl. The compounds are useful as emitters in OLEDs providing improved efficiency.

The present disclosure provides for an organic electroluminescent device (OLED) including an anode; a cathode; and an emissive layer, disposed between the anode and the cathode. The emissive layer includes a phosphorescent dopant, a first host, and a second host, wherein the first host transports holes, the second host transports electrons, and the first host is fully or partially deuterated. Consumer products that include the OLED are also provided.

There is disclosed a compound having Formula I ##STR00001## In Formula, I: Ar.sup.1 is selected from the group consisting of dibenzofuran, dibenzothiophene, or deuterated analogs thereof; Ar.sup.2 and Ar.sup.3 are the same or different and are hydrocarbon aryl, substituted derivatives thereof, or deuterated analogs thereof, with the proviso that Ar.sup.2 and Ar.sup.3 are not the same as Ar.sup.1; a is 0; and Ar.sup.1, Ar.sup.2, and Ar.sup.3 have no additional amino substituents.