Abstract: A light emitter includes an elongated substrate and a plurality of emission elements on the substrate. The emission elements include a first electrode, an organic layer, and a second electrode in this order from the substrate side. The organic layer stretches over one of the emission elements and a next one in the longitudinal direction of the substrate. The light emitter further has a plurality of projections on the substrate. Each of the projections is adjacent to each of the emission elements in the transverse direction of the substrate. The emission elements are located between one of the projections and another. The projections are higher than the second electrode with respect to the principal surface of the substrate. The projections and the second electrode are spaced from each other.

Abstract: Provided is an organic light emitting device having high emission efficiency and a long continuous driving lifetime. The organic light emitting device includes: an anode; a cathode; and an emitting layer placed between the anode and the cathode, in which: the emitting layer contains an emitting material that emits fluorescence; and in an emission wavelength region of the emitting material, an absorption peak of an absorption spectrum in a minimum excited triplet state of a material having a smallest minimum excited triplet energy out of constituent materials in the emitting layer is absent.

Abstract: Provided is an organic light emitting element having stable performance in the air.

Abstract: Provided is an organic light emitting device, including: a substrate; and a lower electrode, an organic compound layer including an emission layer, and an upper electrode sequentially provided on the substrate, in which: the organic compound layer covers the lower electrode; the upper electrode covers the organic compound layer; the upper electrode is electrically connected to a wiring connecting portion provided in the substrate; and when an angle formed between a tilt of a section of an end in at least a partial region of the organic compound layer and a surface of the substrate is represented by ?1, the following formulas (1) and (2) are satisfied: tan(?1)=d1/d2??(1) tan(?1)?0.2??(2) in the formula (1), d1 represents a thickness of the organic compound layer and d2 represents a taper width of the section of the end of the organic compound layer.

Abstract: Provided is an organic light emitting device, including: a lower electrode; an upper electrode and a substrate having an electrode pad portion, in which when an angle formed by a slant in section of a film end in a region between the lower electrode and the electrode pad portion and a surface of the substrate is given as ?1, Formula (1) and Formula (2) are satisfied; and when an angle formed by a slant in section of a film end in at least a part of other regions than the region between the lower electrode and the electrode pad portion and the surface of the substrate is given as ?3, Formula (3) and Formula (4) are satisfied. tan(?1)=d1/d2??(1) tan(?1)<0.2??(2) tan(?3)=d3/d4??(3) tan(?3)?0.

Abstract: Provided is an organic light emitting element having stable performance in the air. The organic light emitting element includes: an anode; a cathode; and an emission layer placed between the anode and the cathode, in which: the organic light emitting element further includes a first organic compound layer placed between the cathode and the emission layer, and a second organic compound layer placed between the emission layer and the first organic compound layer, and contacted with the first organic compound layer; the first organic compound layer contains a first organic compound; the second organic compound layer contains a second organic compound; and the first organic compound includes a viologen compound represented by the following general formula [1] and the second organic compound includes an organic compound different from the viologen compound.

Abstract: An exposure device includes an element array that includes a plurality of organic electroluminescent elements and a lens array optical system that uses a lens array that includes a plurality of lenses, which forms images of light from the element array on a photosensitive body. In the exposure device, each electroluminescent element has a first electrode disposed on a light emitting side, a second electrode disposed on a light reflecting side, and a light emitting layer. In the exposure device, in each organic electroluminescent element, an optical path length L1 between a light emitting position of the light emitting layer and the second electrode is an optical path length within ±10% of an optical path length at which variation in light amount during light exposure is minimized.

Abstract: An organic electroluminescence device includes a first electrode, a second electrode located on a light extraction side and having a metal film, and an organic compound layer provided between the first electrode and the second electrode and including an emission layer. In addition, a first inorganic protective layer is in direct contact with the second electrode and has a specified thickness.

Abstract: In a light-emitting apparatus including a cap layer disposed on a second electrode and a contact portion, which is disposed in an external region outside the light-emitting region and which electrically connects the second electrode to the drive circuit, the formation end of the cap layer is located in the side nearer to the light-emitting region than is the formation end of the second electrode.

Abstract: A first light-emitting layer of a first organic electroluminescent element is disposed in common to a second organic electroluminescent element, a second light-emitting layer of the second organic electroluminescent element is disposed in contact with the first light-emitting layer and in the cathode side, and the second light-emitting layer is a light-emitting layer having an electron trapping property.

Abstract: A first light-emitting layer of a first organic electroluminescent element is disposed in common to a second organic electroluminescent element, a second light-emitting layer of the second organic electroluminescent element is disposed in contact with the first light-emitting layer and in the anode side, and the second light-emitting layer is a light-emitting layer having a hole trapping property.

Abstract: An organic light-emitting element includes a first electrode, an organic compound layer, and a second electrode on a substrate and emits light from the second electrode side, wherein the second electrode includes a first layer and a second layer in contact with the first layer sequentially from the substrate side, the second layer is a layer comprising Ag, and the first layer is a layer comprising Ag and Cs.

Abstract: A display apparatus includes a first substrate provided with a plurality of closed containers, a fluid filled in the closed containers, a plurality of positively charged particles which have a relative dielectric constant different from the fluid and are dispersed and held in the fluid, a plurality of negatively charged particles which have a same color as the positively charged particles and a relative dielectric constant different from the fluid and are dispersed and held in the fluid, and a pair of electrodes for generating an electric field in the closed containers. The display apparatus displays an image formed by a positional distribution of positively and negatively charged particles in each of the closed containers.

Abstract: A first light-emitting layer of a first organic electroluminescent element is disposed in common to a second organic electroluminescent element, a second light-emitting layer of the second organic electroluminescent element is disposed in contact with the first light-emitting layer and in the anode side, and the second light-emitting layer is a light-emitting layer having a hole trapping property.

Abstract: A first light-emitting layer of a first organic electroluminescent element is disposed in common to a second organic electroluminescent element, a second light-emitting layer of the second organic electroluminescent element is disposed in contact with the first light-emitting layer and in the cathode side, and the second light-emitting layer is a light-emitting layer having an electron trapping property.

Abstract: An organic light-emitting element includes a first electrode, an organic compound layer, and a second electrode on a substrate and emits light from the second electrode side, wherein the second electrode includes a first layer and a second layer in contact with the first layer sequentially from the substrate side, the second layer is a layer comprising Ag, and the first layer is a layer comprising Ag and Cs.

Abstract: An organic electroluminescent element includes a first electrode, an organic compound film including a plurality of layers that include an emissive layer, a second electrode, a protective layer, and a buffer layer formed by an evaporation method between the second electrode and the protective layer, light emitted from the emissive layer emerging from the second electrode side, in which the second electrode is formed of a metal film having a thickness of 5 nm to 20 nm, a distance between a surface of the emissive layer adjacent to the first electrode and a surface of the second electrode adjacent to the organic compound film is in the range of 55 nm to 90 nm, and the protective layer is formed by a sputtering method or a plasma-enhanced chemical vapor deposition method.

Abstract: A display apparatus includes pixel units, each including a plurality of pixels having different emission colors. The pixel unit is provided with lenses so that the difference in deterioration property among the emission colors of the pixels.

Abstract: In a display apparatus in which a plurality of pixel units including a plurality of pixels whose emission colors are different are arranged and white is displayable by the pixel unit, the pixel includes an organic EL device, and lenses are provided in the pixel unit to minimize a difference of currents supplied to the organic EL devices for respective emission colors when white of desired luminance is displayed.

Abstract: A pixel unit having two or more pixels different in emission color is provided with lenses in such a manner that the difference of the angular dependence of brightness in organic EL elements for every emission color of the pixels becomes small.