Abstract: A light emitting device comprises a first electrode, a second electrode, and an emissive layer (EML) between the first electrode and the second electrode and electrically connected to the first electrode and the second electrode. The EML comprises a charge transport matrix of a first polarity, a plurality of quantum dots in the charge transport matrix, and a plurality of charge transport nanoparticles of a second polarity in the charge transport matrix.

Abstract: A light-emitting device includes a substrate, an anode, a cathode, an emissive layer between the anode and the cathode, the emissive layer comprising quantum dots having ligands, a cross-linked matrix comprising a cross-linkable charge transport material other than the ligands, and another charge transport material, where the quantum dots are dispersed in the cross-linked matrix, and the another charge transport material alters mobility of charge carriers of the emissive layer. The another charge transport material is not cross-linked with the cross-linked charge transport material in the cross-linked matrix. The cross-linked charge transport material is a cross-linkable hole transporting material. The another charge transporting material includes a hole transporting material. The hole transporting material has a highest occupied molecular orbital or valence energy level between those of the cross-linked hole transporting material and the quantum dots.

Abstract: A quantum dot LED display apparatus includes a substrate having a plurality of banks deposited thereon. A plurality of red emitting LED sub-pixels, green emitting LED sub-pixels, and blue emitting LED sub-pixels are individually disposed between the banks. Each of the red emitting LED sub-pixels, green emitting LED sub-pixels, and blue emitting LED sub-pixels has an emissive layer, wherein each of the emissive layers comprises quantum dots, an organic matrix, and a photoinitiator. A first concentration of the photoinitiator in the blue emitting LED sub-pixels is lower than a second concentration of the photoinitiator in the red emitting LED sub-pixels, and lower than a third concentration of the photoinitiator in the green emitting LED sub-pixels.

Abstract: A quantum dot LED display apparatus includes a substrate having a plurality of banks deposited thereon. A plurality of red emitting LED sub-pixels, green emitting LED sub-pixels, and blue emitting LED sub-pixels are individually disposed between the banks. Each of the red emitting LED sub-pixels, green emitting LED sub-pixels, and blue emitting LED sub-pixels has an emissive layer, wherein each of the emissive layers comprises quantum dots, an organic matrix, and a photoinitiator. A first concentration of the photoinitiator in the blue emitting LED sub-pixels is lower than a second concentration of the photoinitiator in the red emitting LED sub-pixels, and lower than a third concentration of the photoinitiator in the green emitting LED sub-pixels.

Abstract: A light-emitting structure includes an anode, a cathode, a combined charge transport and emissive layer disposed between the anode and the cathode, and an interlayer of a material with at least electron blocking properties. The interlayer is disposed adjacent an upper outer surface of the combined charge transport and emissive layer. The combined charge transport and emissive layer comprises quantum dots (QDs) with ligands, and the QDs are dispersed in a crosslinked matrix formed at least partially from at least one crosslinkable charge transport material other than the ligands.

Abstract: A light emitting device comprises a first electrode, a second electrode, and an emissive layer (EML) between the first electrode and the second electrode and electrically connected to the first electrode and the second electrode. The EML comprises a charge transport matrix of a first polarity, a plurality of quantum dots in the charge transport matrix, and a plurality of charge transport nanoparticles of a second polarity in the charge transport matrix.

Abstract: A light-emitting structure includes a substrate and a plurality of sub-pixel structures over the substrate. At least one of the plurality of sub-pixel structures includes an anode, a cathode, and a combined charge transport and emissive layer disposed between the anode and the cathode. The combined charge transport and emissive layer includes quantum dots (QDs) with ligands, and nanoparticles smaller than the QDs. The QDs and the nanoparticles are dispersed in a crosslinked matrix formed at least partially from at least one crosslinkable charge transport material other than the ligands, and the combined charge transport and emissive layer is arranged with the QDs and the nanoparticles phase segregated in an upper outer surface of the crosslinkable charge transport material, with the nanoparticles arranged closer to the upper outer surface than the QDs.

Abstract: A light-emitting device includes a substrate, an anode, a cathode, an emissive layer between the anode and the cathode, the emissive layer comprising quantum dots having ligands, a cross-linked matrix comprising a cross-linkable charge transport material other than the ligands, and another charge transport material, where the quantum dots are dispersed in the cross-linked matrix, and the another charge transport material alters mobility of charge carriers of the emissive layer. The another charge transport material is not cross-linked with the cross-linked charge transport material in the cross-linked matrix. The cross-linked charge transport material is a cross-linkable hole transporting material. The another charge transporting material includes a hole transporting material. The hole transporting material has a highest occupied molecular orbital or valence energy level between those of the cross-linked hole transporting material and the quantum dots.

Abstract: A light-emitting device includes an anode, a cathode, an electron transporting or injecting layer between the cathode and the anode, an emissive layer having quantum dots between the anode and the electron transporting or injecting layer, and a cross-linked hole transporting or injecting layer between the anode and the emissive layer. The cross-linked hole transporting or injecting layer includes a cross-linked material formed by a cross-linkable material cross-linked by at least one of a stimulus or an initiator. The stimulus is an external stimulus including one of light, a change in temperature, a change in pressure and a change in pH value.

Abstract: A light-emitting device is configured to emit light in improved accordance with the Rec. 2020 specification. The light emitting device includes a substrate; a first electrode disposed on the substrate between an outer surface of the light emitting device and the substrate; a second electrode disposed between the first electrode and the outer surface; a first emissive layer in electrical contact with the first electrode and the second electrode, wherein the first emissive layer includes quantum dots that emit light when electrically excited, and wherein the first emissive layer is associated with a first peak wavelength, ?1; and a second emissive layer disposed between the first emissive layer and a viewing side of the light emitting device, wherein the second emissive layer is a photoluminescent layer that includes quantum dots that emit light when optically excited, and the second emissive layer is associated with a second peak wavelength, ?2, different from the first peak wavelength.

Abstract: A light-emitting device includes an anode, cathode, and a combined charge transport and emissive layer (CCTEL) disposed on a deposition surface between the anode and cathode. The CCTEL includes a crosslinked charge transport material and quantum dots, the quantum dots distributed unevenly within the crosslinked charge transport material and arranged relative to the deposition layer. The quantum dots include nucleophilic or electrophilic centers and ligands respectively bonded to the quantum dots. The deposition surface has nucleophilic or electrophilic properties. A method of forming the CCTEL includes the steps of depositing a mixture on a deposition surface having nucleophilic or electrophilic properties. The mixture includes a solvent, cross-linkable charge transport material, and quantum dots comprising nucleophilic or electrophilic centers and ligands respectively bonded to the quantum dots. At least a portion of the mixture to an activation stimulus to crosslink the cross-linkable material.

Abstract: A light-emitting device includes an anode, a cathode, and a crosslinked emissive layer disposed between the anode and the cathode in which quantum dots are dispersed. The crosslinked layer includes a crosslinked material and quantum dots dispersed in the crosslinked mater, the quantum dots having ligands respectively bonded to the quantum dots. The quantum dots are distributed unevenly within the crosslinked material. The ligands have a concentration relative to the weight of the quantum dots of 10 to 45 wt %. A method of forming a crosslinked emissive layer of a light-emitting device in which quantum dots are dispersed includes the steps of depositing a mixture on a deposition surface and subjecting at least a portion of the mixture to an activation stimulus to crosslink the cross-linkable material.

Abstract: A light-emitting device includes an anode, cathode, and a combined charge transport and emissive layer (CCTEL) disposed on a deposition surface between the anode and cathode. The CCTEL includes a crosslinked charge transport material and quantum dots, the quantum dots distributed unevenly within the crosslinked charge transport material and arranged relative to the deposition layer. The quantum dots include nucleophilic or electrophilic centers and ligands respectively bonded to the quantum dots. The deposition surface has nucleophilic or electrophilic properties. A method of forming the CCTEL includes the steps of depositing a mixture on a deposition surface having nucleophilic or electrophilic properties. The mixture includes a solvent, cross-linkable charge transport material, and quantum dots comprising nucleophilic or electrophilic centers and ligands respectively bonded to the quantum dots. At least a portion of the mixture to an activation stimulus to crosslink the cross-linkable material.

Abstract: A light-emitting device includes an anode, a cathode, and a crosslinked emissive layer disposed between the anode and the cathode in which quantum dots are dispersed. The crosslinked layer includes a crosslinked material and quantum dots dispersed in the crosslinked mater, the quantum dots having ligands respectively bonded to the quantum dots. The quantum dots are distributed unevenly within the crosslinked material. The ligands have a concentration relative to the weight of the quantum dots of 10 to 45 wt %. A method of forming a crosslinked emissive layer of a light-emitting device in which quantum dots are dispersed includes the steps of depositing a mixture on a deposition surface and subjecting at least a portion of the mixture to an activation stimulus to crosslink the cross-linkable material.

Abstract: A method of fabricating a reactive mesogen (RM) guest-host polarizer is disclosed. The method includes forming an RM guest-host polarizer material on a substrate that promotes a substantially uniform planar alignment configuration of the RM guest-host molecules, forming a temporary layer on the RM guest-host polarizer material to align RM guest-host molecules of the RM guest-host polarizer material in the substantially uniform planar alignment configuration, performing polymerization of the RM guest-host polarizer material, and removing the temporary layer from the RM guest-host polarizer. The temporary layer includes at least one of a temporary fluid layer, a temporary particulate layer, a temporary gaseous layer, a temporary vacuum layer, and a temporary alignment substrate layer.

Abstract: A light emitting device comprises a first electrode, a second electrode, and an emissive layer between the first and the second electrodes. The emissive layer comprises a first plurality of quantum dots having hole transporting ligands, and a second plurality of quantum dots having electron transporting ligands, where at least one of the first and the second plurality of quantum dots is incorporated in a matrix. The matrix comprises at least one of an electrically insulating material, a photo-responsive material, and a dielectric material. The matrix comprises cross-linked molecules, the cross-linked molecules transport charge carriers to or away from the at least one of the first plurality of quantum dots and the second plurality of quantum dots that is incorporated in the matrix.

Abstract: A quantum dot includes a salt ligand at an outer surface thereof, the salt ligand including an anion and a cation, the cation having charge transporting properties. A light-emitting device includes an anode, a cathode, and an emissive layer disposed between the anode and the cathode, the emissive layer including multiple instances of the quantum dot. In some embodiments, the emissive layer is a crosslinked layer formed by depositing a mixture including the quantum dots on a layer, and subjecting at least a portion of the mixture to external activation stimuli to form the emissive layer including quantum dots dispersed in a crosslinked matrix.

Abstract: A method is disclosed for forming an emissive layer of a light-emitting device. One or more layers of the light-emitting device are formed. A solution including quantum dots having ligands at the outer surface thereof is contacted with the uppermost layer of the light-emitting device. A portion of the solution is subjected to external activation stimuli to form a crosslinked layer on the uppermost formed layer of the light-emitting device, the crosslinked layer including the ligands at the outer surface of the quantum dots in a crosslinked state. The solution is washed away, and the crosslinked layer is contacted with ligand exchange solution including compact ligands to perform a ligand exchange. Also disclosed is a light-emitting device including an anode, cathode, and emissive layer disposed therebetween, the emissive layer including quantum dots and compact ligands at the outer surface thereof.

Abstract: A light-emitting device includes an anode; a cathode; and an emissive layer disposed between the anode and the cathode, the emissive layer including quantum dots dispersed in a crosslinked matrix formed from one or more crosslinkable charge transport materials. A method of forming the emissive layer of a light-emitting device includes depositing a mixture including quantum dots and one or more crosslinkable charge transport materials on a layer; and subjecting at least a portion of the mixture to UV activation to form an emissive layer including quantum dots dispersed in a crosslinked matrix.

Abstract: A light-emitting device includes a first electrode, a second electrode, and an emissive layer between the first and second electrodes, where the emissive layer comprises quantum dots and oxygen scavenging nanoparticles. The oxygen scavenging nanoparticles comprise at least one of one or more iron based materials, and one or more organic polymer based materials.