Light emitting device and display device including the same

    公开(公告)号:US11569469B2

    公开(公告)日:2023-01-31

    申请号:US17205015

    申请日:2021-03-18

    Abstract: A light emitting device, a method of manufacturing the same, and a display device including the same are disclosed. The light emitting device including a first electrode and a second electrode facing each other, an emission layer disposed between the first electrode and the second electrode, the emission layer including quantum dots, and a charge auxiliary layer disposed between the emission layer and the second electrode, wherein the emission layer includes a first surface facing the charge auxiliary layer and an opposite second surface, the quantum dots include a first organic ligand on a surface of the quantum dots, in the emission layer, an amount of the first organic ligand in a portion adjacent to the first surface is larger than an amount of the first organic ligand in a portion adjacent to the second surface.

    LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME

    公开(公告)号:US20210066634A1

    公开(公告)日:2021-03-04

    申请号:US17007021

    申请日:2020-08-31

    Abstract: A light emitting device includes an emission layer including a plurality of quantum dots, and an electron auxiliary layer disposed on the emission layer, the electron auxiliary layer to transport electrons to the emission layer, wherein the electron auxiliary layer includes a plurality of metal oxide nanoparticles, wherein the metal oxide nanoparticles include zinc and a dopant metal, wherein the dopant metal includes Mg, Mn, Ni, Sn, Al, Y, Ga, Zr, Ni, Li, Co, or a combination thereof, wherein the dopant metal in at least one of the metal oxide nanoparticles is included in the meal oxide nanoparticle to have a concentration gradient of the dopant metal.

    Electroluminescent device, and display device comprising thereof

    公开(公告)号:US10818859B2

    公开(公告)日:2020-10-27

    申请号:US16233567

    申请日:2018-12-27

    Abstract: An electroluminescent device, a method of manufacturing the same, and a display device including the same.The electroluminescent device includes a first electrode, a hole transport layer disposed on the first electrode, an emission layer disposed on the hole transport layer and including light emitting particles, an electron transport layer disposed on the emission layer and including nanoparticles having electron transport capability, and a second electrode disposed on the electron transport layer, wherein at least a portion of the nanoparticles having electron transport capability include an inorganic oxide core represented by Chemical Formula 1, an organic ligand attached to a surface of the inorganic oxide core, and a metal-organic compound chemically bound to the surface of the inorganic oxide core. MxOy  Chemical Formula 1

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