Abstract: A light-emitting device includes a first sub-pixel provided with a first light emitter, and a second sub-pixel provided with a second light emitter and constituting, together with the first sub-pixel, one of a plurality of pixels. The first light emitter has a first cathode, a first anode, and a first light-emitting layer containing a first quantum dot and disposed between the first cathode and the first anode. The second light emitter has a second cathode, a second anode, and a second light-emitting layer containing a second quantum dot and disposed between the second cathode and the second anode. The second quantum dot emits light having a longer light-emission wavelength than the first quantum dot. The first light-emitting layer is thicker than the second light-emitting layer.

Abstract: A light-emitting element includes: a cathode; an anode; and an electron-transport layer, a light-emitting layer, and a hole-transport layer provided, between the cathode and the anode, in a stated order from the cathode. At least one of the electron-transport layer or the hole-transport layer includes: a first charge-transport layer and a second charge-transport layer containing different carrier-transport materials. The light-emitting element includes, in plan view, a first region including the first charge-transport layer, and a second region including the second charge-transport layer. The light-emitting element shares the anode and the cathode between the first region and the second region.

Abstract: In a display device, a light-emitting layer of at least one subpixel includes a first region, and a second region having a number of inorganic ligands contained per unit volume less than a number of the inorganic ligands contained per unit volume in the first region. The first region includes a central portion of the light-emitting layer, and the second region includes at least one end portion among end portions, of the light-emitting layer, adjacent to other adjacent subpixels.

Abstract: A light-emitting element includes a light-emitting layer including first quantum dots and second quantum dots, the electron transport layer includes a first material having a first particle size distribution and a second material having a second particle size distribution different from the first particle size distribution, an electron affinity of a first light-emitting material is equal to or smaller than an electron affinity of the first material, an electron affinity of the second material is smaller than the electron affinity of the first material, and an electron affinity of a second light-emitting material is equal to or smaller than the electron affinity of the second material.

Abstract: A light-emitting device includes a first sub-pixel provided with a first light emitter, and a second sub-pixel provided with a second light emitter and constituting, together with the first sub-pixel, one of a plurality of pixels. The first light emitter has a first cathode, a first anode, and a first light-emitting layer containing a first quantum dot and disposed between the first cathode and the first anode. The second light emitter has a second cathode, a second anode, and a second light-emitting layer containing a second quantum dot and disposed between the second cathode and the second anode. The second quantum dot emits light having a longer light-emission wavelength than the first quantum dot. The first light-emitting layer is thicker than the second light-emitting layer.

Abstract: A blue light-emitting element includes a first electrode and a second electrode, and a function layer placed between the first electrode and the second electrode and including at least a blue light-emitting layer containing quantum dots. The blue light-emitting layer contains at least some amount of first ligands, which are at least one type of ligand selected from a ligand being a halogen atom and a ligand being a sulfur atom, and includes a first region, which is a partial region of the blue light-emitting layer including at least part of an end portion of the blue light-emitting layer, and a second region other than the first region. The number of the first ligands contained per unit volume in the first region is greater than the number of the first ligands contained per unit volume in the second region.

Abstract: Provided is a light-emitting element to highly efficiently emit light in different colors. The light-emitting element includes: a cathode; an anode; a light-emitting layer formed between the cathode and the anode, and including a plurality of light-emitting regions respectively emitting light of different wavelengths; and an electron-transport layer formed between the cathode and the light-emitting layer, and including a plurality of regions each corresponding to one of the light-emitting regions. The electron-transport layer includes a Zn1-XMgXO film (where X is 0?X<1). Of the plurality of regions included in the electron-transport layer, a region, corresponding to one of the light-emitting regions that emits light of a shorter wavelength, is higher in composition ratio X of Mg and/or less in thickness of the Zn1-XMgXO film.

Abstract: A light-emitting element includes an anode electrode, a QD layer containing QDs, and a cathode electrode, in which the QDs have a core-shell structure including a core and a shell and are Cd-free QDs that emit blue light, the QDs contain halogen elements, and an external quantum efficiency percentage of the light-emitting element is 7% or more.

Abstract: A light-emitting element includes an anode electrode, an EML containing a QD dispersed in a non-polar solvent, a first ETL containing an MOP dispersed in a polar solvent, the first ETL being adjacent to the EML, a second ETL-containing an MOP dispersed in a non-polar solvent, the second ETL being adjacent to the first ETL, and a cathode electrode, which are layered in this order from a lower layer side.

Abstract: This inspection assistance program is a program for assisting inspection of a vehicle, and causes an inspection assistance apparatus 2 to function as: a registration information acquisition unit 251 that acquires vehicle registration information corresponding to the vehicle; a determination unit 252 that determines whether wireless identification information for identifying an on-vehicle wireless machine installed in the vehicle is associated with the vehicle registration information; and a display control unit 253 that causes a display unit 23 to display an operation screen that is generated in a mode determined on the basis of the determination result of the determination unit 252 and that is used for inspecting the vehicle through communication with the on-vehicle wireless machine.

Abstract: Provided is a display device using a quantum dot including: a display portion including a plurality of pixels configured to display an image, each of the plurality of pixels including a light-emitting layer including the quantum dot, an anode electrode, and a cathode electrode; and a ligand formed at least in each of the plurality of pixels in an outer peripheral portion from an edge of a sealing layer formed on the display portion. Content of the ligands in the plurality of pixels of the same color is greater in the outer peripheral portion of the display portion than in a center portion of the display portion.

Abstract: An inspection circuit in a display device includes: a measuring circuit configured to sweep a voltage to the display device and to measure a current value that flows in a light-emitting element in response to a voltage value applied; a computation circuit configured to compute a first derivative value of the current value with respect to the voltage value, the first derivative value representing voltage dependence of a first derivative of the current value; a peak determination circuit configured to determine a peak of the first derivative value; and a processing circuit configured to process the light-emitting element based on a result of the determination by the peak determination circuit.

Abstract: A light-emitting element includes an anode electrode, a QD layer containing QDs, and a cathode electrode, in which the QDs are Cd-free quantum dots having a core-shell structure including a core containing at least Ag, Ga, and at least one of S and Se, and a shell containing at least Zn, and exhibit fluorescence characteristics with a fluorescence full-width at half-maximum of 40 nm or less and a fluorescence quantum yield percentage of 70% or more.

Abstract: A light-emitting element includes an anode electrode, a cathode electrode, and a QD layer provided between the anode electrode and the cathode electrode, the QD layer containing the QDs. The QDs are AgInxGa1-xSySe1-y-based or ZnAgInxGa1-xSySe1-y-based Cd-free QDs (0?x<1, 0?y?1) and exhibit fluorescence characteristics having a fluorescent half width of 45 nm or less and a fluorescence quantum yield of 35% or more in a green wavelength region to a red wavelength region.

Abstract: A display device includes: a light-emitting element provided on a substrate, and including a first electrode that reflects visible light, a second electrode that transmits visible light, and a light-emitting layer provided between the first electrode and the second electrode; a subpixel that is a light-emitting region in plan view of the light-emitting element; a polarizing plate provided on the light-emitting element disposed in a light emission direction in which light is emitted from the light-emitting element, the polarizing plate partially overlapping with the subpixel in plan view; and a light-blocking layer provided at least partially around the subpixel and raised higher in the light emission direction than the polarizing plate.

Abstract: A pixel is divided into a first subpixel and a second subpixel. A first data signal is input to a first drive unit that drives a first light-emitting element constituting the first subpixel, and a second data signal is input to a second drive unit that drives a second light-emitting element constituting the second subpixel. A gray scale value of the first data signal is smaller than a gray scale value of the second data signal.

Abstract: A display device includes a plurality of light-emitting elements each including: a first electrode; a second electrode; and a light-emitting layer between the first electrode and the second electrode, the plurality of light-emitting elements including: at least one main light-emitting element containing quantum dots in the light-emitting layer; and at least one set of compact light-emitting elements including a plurality of compact light-emitting elements smaller than the at least one main light-emitting element.

Abstract: A light-emitting element according to the disclosure includes, in the recited order, an anode, a blue light-emitting layer, an electron transport layer and a cathode, wherein the electron transport layer includes a nanoparticle containing a metal oxide, and a ligand containing a thiol group.

Abstract: A light-emitting element includes: a first electrode having a reflective surface that reflects light; a second electrode that transmits light; and a light-emitting layer between the first electrode and the second electrode, the light-emitting layer containing a first light-emitting material that emits first light that has a peak wavelength equal to a first wavelength and a second light-emitting material that emits second light that has a peak wavelength equal to a second wavelength shorter than the first wavelength, wherein the second light has at least one location where intensity is higher in a direction off a normal to the reflective surface than in the normal.

Abstract: A light-emitting element includes: a cathode; an anode; and an electron-transport layer, a light-emitting layer, and a hole-transport layer provided, between the cathode and the anode, in a stated order from the cathode. At least one of the electron-transport layer or the hole-transport layer includes: a first charge-transport layer and a second charge-transport layer containing different carrier-transport materials. The light-emitting element includes, in plan view, a first region including the first charge-transport layer, and a second region including the second charge-transport layer. The light-emitting element shares the anode and the cathode between the first region and the second region.