Abstract: Display devices and electronic devices that reduce color mixture while reducing a decrease in brightness and a decrease in a protective function of light emitting elements are disclosed. In one example, a display device includes light emitting elements that include first electrodes, an organic layer, a second electrode, a protective layer, and color filters. Subpixels corresponding to the respective light emitting elements are formed. A ring-shaped lens including a convex surface portion that is convex in a direction away from a substrate is provided in a peripheral edge portion of each of the subpixels. A refractive index of the lens is higher than a refractive index of an outer portion of the lens in contact with the convex surface portion.

Abstract: A display device includes a substrate having a principal surface; plural light-emitting elements provided on the principal surface; and plural structures that are provided on the plural light-emitting elements and that have side surfaces vertical or substantially vertical to the principal surface. The refractive index between the structures is lower than a refractive index of the structures, and a pitch of the light-emitting elements is three times or less a pitch of the structures.

Abstract: A display device has a display panel provided with a plurality of light emitting elements 10 including a light emitting part 30, and a lens member 50 through which light emitted from the light emitting part 30 passes, in which when a distance (an offset amount) between a normal LN passing through a center of the light emitting part 30 and a normal LN? passing through a center of the lens member 50 is defined as D0, a value of the distance (offset amount) D0 is not 0 in at least some of the light emitting elements 10 provided in the display panel.

Abstract: Disclosed is a thermoelectric generation system that generates electricity using waste heat from a steam condenser that exchanges heat with steam as cyclic water flows through a high temperature portion and a low temperature portion, the thermoelectric generation system including: a first hot-water discharge line used to discharge the cyclic water passing through the high temperature portion; a cyclic water circulation line through which the cyclic water from under water circulates; and a thermoelectric generation unit that generates electricity on the basis of a temperature difference between a temperature of the cyclic water flowing through the first hot-water discharge line and a temperature of the cyclic water flowing through the cyclic water circulation line.

Abstract: Disclosed is a thermoelectric generation system that generates electricity using waste heat from a steam condenser that exchanges heat with steam as cyclic water flows through a high temperature portion and a low temperature portion, the thermoelectric generation system including: a first hot-water discharge line used to discharge the cyclic water passing through the high temperature portion; a cyclic water circulation line through which the cyclic water from under water circulates; and a thermoelectric generation unit that generates electricity on the basis of a temperature difference between a temperature of the cyclic water flowing through the first hot-water discharge line and a temperature of the cyclic water flowing through the cyclic water circulation line.

Abstract: According to one embodiment, a radiation detector includes a scintillator layer, a first conductive layer, a second conductive layer, and an organic layer. The second conductive layer is provided between the scintillator layer and the first conductive layer. The organic layer is provided between the first conductive layer and the second conductive layer. The organic layer includes an organic semiconductor region having a first thickness. The first thickness is 400 nanometers or more.

Abstract: Disclosed is a radiation detection element including: an organic layer configured to generate an electric charge by receiving an incident radioactive ray; a first electrode layer arranged in one side of the organic layer; and a second electrode layer arranged in the other side of the organic layer to face the first electrode layer and provided with a first electrode pattern and a second electrode pattern spaced from the first electrode pattern.

Abstract: According to one embodiment, a radiation detector includes a scintillator layer, a first conductive layer, a second conductive layer, and an organic layer. The second conductive layer is provided between the scintillator layer and the first conductive layer. The organic layer is provided between the first conductive layer and the second conductive layer. The organic layer includes an organic semiconductor region having a first thickness. The first thickness is 400 nanometers or more.

Abstract: According to one embodiment, a sensor includes a light emitter and a light sensor. The light emitter includes a first electrode, a second electrode, and a first light emitting layer. The second electrode is light-transmissive. The first light emitting layer is provided between the first electrode and the second electrode. The light sensor includes a third electrode, a fourth electrode, a fifth electrode, a first photoelectric conversion layer, and a second photoelectric conversion layer. the fourth electrode is light-transmissive. The fifth electrode is provided between the third electrode and the fourth electrode. The fifth electrode is light-transmissive. The first photoelectric conversion layer is provided between the third electrode and the fifth electrode. The second photoelectric conversion layer is provided between the fourth electrode and the fifth electrode.

Abstract: An organic electroluminescent device includes first and second electrode and an organic light emitting layer. The first electrode has an upper face. The organic light emitting layer is provided on the first electrode. The second electrode is provided on the organic light emitting layer. The second electrode includes a plurality of conductive parts. The conductive parts extend in a first direction parallel to the upper face and are arranged in a second direction. The second direction is parallel to the upper face and intersects with the first direction. When a length of each of the conductive parts in the second direction is set to W1 (micrometer), and a pitch of each of the conductive parts is set to P1 (micrometer). The W1 and the P1 satisfy a relationship of W1??647(1?W1/P1)+511 and a relationship of W1??882(1?W1/P1)+847.

Abstract: According to one embodiment, an organic electroluminescent element includes a first electrode, an organic layer, and a second electrode. The first electrode is light-transmissive. The organic layer is provided on the first electrode. The second electrode is provided on the organic layer. The second electrode is light-reflective and includes a first conductive portion and a second conductive portion. The first conductive portion extends in a first direction. The second conductive portion extends in a second direction intersecting the first direction. The second conductive portion intersects the first conductive portion. A length in the first direction of the first conductive portion is longer than 1 mm and not more than 47 mm. A length in the second direction of the second conductive portion is longer than 1 mm and not more than 47 mm.

Abstract: An organic electroluminescent device includes a first electrode, an insulating layer, an organic light emitting layer, and a second electrode. The insulating layer is provided on the first electrode. The insulating layer includes a first opening for exposing a part of the first electrode. The organic light emitting layer includes a first part and a second part. The first part is provided on the part of the first electrode. The second part is provided on the insulating layer. The second electrode is provided on the organic light emitting layer. The second electrode includes a conductive part and a plurality of second openings. The conductive part is disposed on at least a part of the first part. Each of the second openings exposes a part of the organic light emitting layer. The second electrode is light-reflective.

Abstract: According to one embodiment, a sensor includes a plurality of light-emitting elements, and a light receiving element. The light-emitting elements are arranged along a first direction and a second direction, the second direction intersecting the first direction. At least a portion of light emitted from each of the light-emitting elements is incident on the light receiving element. The light-emitting elements do not overlap the light receiving element in a third direction, the third direction being perpendicular to the first direction and the second direction. The light-emitting elements include a first light-emitting element and a second light-emitting element. A position of the second light-emitting element in a plane is between a position of the first light-emitting element in the plane and a position of the light receiving element in the plane. The plane includes the first direction and the second direction.

Abstract: According to one embodiment, a sensor includes a first light-emitting region, a second light-emitting region, and a light receiving element. At least one of at least a portion of a first light or at least a portion of a second light is incident on the light receiving element. The first light is emitted from the first light-emitting region. The second light is emitted from the second light-emitting region. A second position of the second light-emitting region in a first direction is between a first position of the first light-emitting region in the first direction and a light receiving position of the light receiving element in the first direction. The first direction is from the first light-emitting region toward the second light-emitting region.

Abstract: According to one embodiment, a method for manufacturing an organic electroluminescent element includes forming a first electrode including a first portion, a second portion, a third portion, a fourth portion, and a fifth portion. The method further includes forming an insulating layer on the first portion, the second portion, and the third portion. The method further includes forming an organic layer on the fifth portion. The method further includes forming a conductive layer having a light transmittance lower than a light transmittance of the first electrode so that the conductive layer is formed on the fourth portion, the insulating layer, and the organic layer, and causing a light transmittance of a portion of the conductive layer positioned on the fourth portion to be higher than a light transmittance of a portion of the conductive layer positioned on the organic layer.

Abstract: According to one embodiment, a sensor includes a light emitter and a light sensor. The light emitter includes a first electrode, a second electrode, and a first light emitting layer. The second electrode is light-transmissive. The first light emitting layer is provided between the first electrode and the second electrode. The light sensor includes a third electrode, a fourth electrode, a fifth electrode, a first photoelectric conversion layer, and a second photoelectric conversion layer. the fourth electrode is light-transmissive. The fifth electrode is provided between the third electrode and the fourth electrode. The fifth electrode is light-transmissive. The first photoelectric conversion layer is provided between the third electrode and the fifth electrode. The second photoelectric conversion layer is provided between the fourth electrode and the fifth electrode.

Abstract: According to an embodiment, an organic electroluminescent device includes a first electrode that is optically transparent and has a first region and a second region; an insulation layer that has insulation parts formed of a translucent insulation material on the first and second regions, the insulation parts arranged per unit of surface area are equal in number between the first and second regions; an organic layer provided on at least the first region of the first electrode via the insulation layer; and a second electrode formed on the organic layer, having conductive parts each of which is light-reflective and openings. Each of the openings overlaps at least two of the insulation parts.

Abstract: According to one embodiment, an organic electroluminescent element includes a first electrode, a first insulating layer, an organic layer, a second electrode, and a second insulating layer. The first insulating layer is provided on the first electrode. The first insulating layer has an opening. The organic layer is provided on the first electrode. At least a portion of the organic layer is provided in the opening. At least a portion of the second electrode is provided on the organic layer. A second insulating layer covers at least a portion of an outer edge of the first insulating layer. A density of the second insulating layer is higher than a density of the first insulating layer.

Abstract: According to one embodiment, a light-emitting device includes a first light emitter, a second light emitter. The first light emitter includes a first organic layer and a second organic layer. The first organic layer includes a fluorescent material to emit a first light having a first light emission spectrum. The second organic layer is stacked with the first organic layer in a first direction. The second organic layer includes a first phosphorescent material to emit a second light having a second light emission spectrum different from the first light emission spectrum. The second light emitter includes a third organic layer to emit a third light having a third light emission spectrum different from the first light emission spectrum and the second light emission spectrum. A triplet energy of the fluorescent material is higher than a triplet energy of the first phosphorescent material.

Abstract: According to one embodiment, an organic electroluminescent element includes a first electrode, an organic layer, and a second electrode. The first electrode is light-transmissive. The organic layer is provided on the first electrode. The second electrode is provided on the organic layer. The second electrode is light-reflective and includes a first conductive portion and a second conductive portion. The first conductive portion extends in a first direction. The second conductive portion extends in a second direction intersecting the first direction. The second conductive portion intersects the first conductive portion. A length in the first direction of the first conductive portion is longer than 1 mm and not more than 47 mm. A length in the second direction of the second conductive portion is longer than 1 mm and not more than 47 mm.