The present disclosure provides coinage metal carbene emitters of Formula I; organic light emitting device (OLED) comprising an anode, a cathode, and an organic layer, disposed between the anode and the cathode, comprising a compound of Formula I; and consumer products comprising an OLED comprising a compound of Formula I:

##STR00001##

A light-emitting device includes a first emission layer and a second emission layer, wherein the first emission layer includes a first hole-transporting host (HTH1), a first electron-transporting host (ETH1), and a first phosphorescent dopant (G1), and the second emission layer includes a second hole-transporting host (HTH2), a second electron-transporting host (ETH2), and a second phosphorescent dopant (G2). The electron mobility of the ETH1 is faster than the electron mobility of the ETH2, the hole mobility of the HTH2 is faster than the hole mobility of the HTH1, and the HTH1 and/or HTH2 includes deuterium.

The present invention relates to a an organic electroluminescent device comprising at least one light-emitting layer B comprising at least one host material H.sup.B, at least one thermally activated delayed fluorescence (TADF) material E.sup.B, and at least one small full width at half maximum (FWHM) emitter S.sup.B wherein E.sup.B transfers energy to S.sup.B and S.sup.B emits light with an emission maximum in the wavelength range from 500 nm to 560 nm.

An OLED device, including: an anode (100), a cathode (300), and a first light-emitting unit (200) located between the anode (100) and the cathode (300). The first light-emitting unit (200) comprises a hole functional unit (210) and a light-emitting layer (220) that are sequentially stacked. The hole functional unit (210) is located between the anode (100) and the light-emitting layer (220). The hole functional unit (210) comprises a first functional layer (211) for transporting electrons, a second functional layer (212) for injecting holes, and a third functional layer (213) for transporting holes, which are sequentially stacked. The first functional layer (211) comprises an electron transport material on which one or more among an active metal and an active metal compound is doped.

Provided are bisoxaborinine compounds. The compound comprises a structure of Formula I

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Also provided are formulations comprising these bisoxaborinine compounds. Further provided are OLEDs and related consumer products that utilize these bisoxaborinine compounds. The OLEDs comprise an anode, a cathode, and an organic layer disposed between the anode and the cathode, wherein the organic layer comprises the compound of Formula I.

An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode; a hole transport region between the first electrode and the emission layer; and an electron transport region between the emission layer and the second electrode, wherein the electron transport region includes a first compound, at least one selected from the hole transport region and the electron transport region includes a second compound, the first compound is represented by one selected from Formulae 1A to 1D, and the second compound is represented by Formula 2A or Formula 2B: ##STR00001##

An electroluminescent device and a display device including the electroluminescent device. The electroluminescent device includes a first electrode and a second electrode each having a surface opposite the other; a light emitting layer disposed between the first electrode and the second electrode, the light emitting layer including quantum dots; and an electron transport layer disposed between the light emitting layer and the second electrode, the electron transport layer including inorganic material nanoparticles including an anion dopant including P, N, C, Cl, F, Br, S, or a combination thereof.

Disclosed herein are a white organic light-emitting device. The white organic light-emitting device enables an overall improvement in characteristics such as color temperature, efficiency, luminance, and service life, by changing the configuration of different types of emission layers in contact with each other, and a display device using the same.

An organic-light-emitting-diode device and a fabricating method thereof, a displaying base plate and a displaying device, wherein the organic-light-emitting-diode device includes a substrate, and an anode layer, an organic functional layer and a cathode layer that are provided in stacking on one side of the substrate, wherein the organic functional layer includes a first functional layer, a second functional layer and a light emitting layer that are provided in stacking, and the first functional layer is provided closer to the anode layer; and a HOMO energy level of the second functional layer is deeper than both of a HOMO energy level of the first functional layer and a HOMO energy level of a host material of the light emitting layer.

Disclosed is a light-emitting element including an anode, a first functional layer over the anode, an emission layer over and in contact with the first functional layer, an electron-transporting layer over the emission layer, and a cathode over the electron-transporting layer. The first functional layer includes a first hole-transporting material and a hole-trapping material. The emission layer includes a host material, an emission material, and the hole-trapping material. Concentrations of the hole-trapping material are lower than concentrations of the first hole-transporting material and the host material in the first functional layer and the emission layer, respectively. A highest occupied molecular orbital level of the hole-trapping material is higher than a highest occupied molecular orbital level of the first hole-transporting material and a highest occupied molecular orbital level of the host material.