Abstract: According to one embodiment, an organic electroluminescent element includes a substrate, a first electrode, a second electrode, an organic layer and a first conductive unit. The substrate is light-transmissive. The second electrode is provided between the substrate and the first electrode. The second electrode is light-transmissive. The second electrode includes a first region and a second region. A direction connecting the first region and the second region intersects a first direction connecting the substrate and the first electrode. The organic layer is provided between the second electrode and the first electrode. The first conductive unit is provided between the first region and a portion of the substrate. The first conductive unit is electrically connected with the second electrode. The first conductive unit includes a third region and a fourth region. A portion of the fourth region is disposed between the substrate and at least a portion of the third region.

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: According to one embodiment, a light emitting element includes a first electrode, a second electrode, a light emitting layer, and a conductive section. The second electrode is provided opposite to the first electrode. The light emitting layer is provided between the first electrode and the second electrode. The second electrode includes a plurality of layers, and the plurality of layers include a first layer. The conductive section pierces the first layer in thickness direction. The conductive section includes a conductive material. Each of the plurality of layers includes at least one of Al, Al alloy, Ag, Ag alloy, alkali metals, and alkaline-earth metals and being different from one another.

Abstract: An organic electroluminescent device includes a first electrode, an insulating layer, an organic light emitting layer, a second electrode, and a light transmissive part. The first electrode has an upper face. The insulating layer is provided on the upper face. The insulating layer includes first to fifth insulating parts. The organic light emitting layer is provided on the upper face in between the insulating parts. The second electrode is provided on the organic light emitting layer. The light transmissive part overlaps the first region of the first electrode when projected onto the plane. The light transmissive part makes a phase of a first light permeating the first region to be different from a phase of a second light permeating the second region of the first 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: 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: 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 upper face. The second electrode is provided on the organic light-emitting layer. The second electrode includes first and second extension parts. The first extension parts extend in a first direction and are arranged in a second direction. The second extension parts extend in the second direction and are arranged in the first direction. When a length of the first extension parts in the second direction is W1, a pitch of the first extension parts is P1, a length of the second extension parts in the first direction is W2, and a pitch of the second extension parts is P2. W1 and P1 satisfy a relationship of W1??750(1?W1/P1)(1?W2/P2)+675. W2 and P2 satisfy a relationship of W2???750(1?W1/P1)(1?W2/P2)+675.

Abstract: In general, according to one embodiment, an illumination device includes a light emitting unit, a connection unit, a containing unit, and a second sealing unit. The light emitting unit includes a first substrate, a second substrate, an organic electroluminescent element, and a first sealing unit. The organic electroluminescent element is provided between the first substrate and the second substrate. The first sealing unit seals circumferential edge portions between the first substrate and the second substrate. The connection unit supplies power to the organic electroluminescent element. The containing unit has a space being airtight in an interior of the containing unit. The containing unit contains the light emitting unit inside the space. The second sealing unit is provided in the containing unit. The second sealing unit seals between a portion of the unit extending outside the containing unit and the containing unit.

Abstract: According to one embodiment, a display device, includes: a display unit and a control unit. The display unit has a plurality of segments. Each of the plurality of segments includes a plurality of organic light emitting layers to emit light of mutually different colors. The plurality of segments forms one of a plurality types of images by changing the colors of the emitted light from the plurality of segments. The control unit drives each of the plurality of segments of the display unit to emit light.

Abstract: According to one embodiment, a light emitting element includes a first electrode, a second electrode, a light emitting layer, and a conductive section. The second electrode is provided opposite to the first electrode. The light emitting layer provided between the first electrode and the second electrode. The second electrode includes a plurality of layers. The conductive section pierces the first layer in thickness direction. The conductive section includes a conductive material. The second electrode includes a plurality of layers. Each of the plurality of layers includes at least one selected from the group consisting of Al, Al alloy, Ag, Ag alloy, alkali metals, and alkaline-earth metals and being different from one another.

Abstract: According to one embodiment, an organic electroluminescent device includes a first electrode, a second electrode, an organic light emitting layer and an optical layer. The first electrode has a first major surface and a second major surface opposite to the first major surface and is light transmissive. The second electrode faces a portion of the first major surface. The organic light emitting layer is provided between the first electrode and the second electrode. The organic light emitting layer and the first electrode are disposed between the optical layer and the second electrode. The optical layer is able to transit between a first state where a traveling direction of light emitted from the organic light emitting layer is changed and a second state having a smaller degree of the change in the traveling direction of the light than the first state.

Abstract: According to one embodiment, an organic electroluminescence device includes a first electrode, a second electrode, a first organic layer and a second organic layer. The second electrode includes a metal. The first organic layer is provided between the first electrode and the second electrode. The first organic layer is configured to emit light. The second organic layer is provided between the first organic layer and the second electrode. A refractive index of the second organic layer in a thickness direction for the light is lower than a refractive index of the first organic layer for the light.

Abstract: According to one embodiment, an organic electroluminescent device includes a first electrode, a plurality of second electrodes and an organic light-emitting layer. The first electrode includes a first major surface and is optical transparency. The second electrodes extend in a first direction parallel to the first major surface and are separated from each other in a second direction parallel to the first major surface and perpendicular to the first direction. An optical transmittance of the second electrodes is lower than an optical transmittance of the first electrode. A distance along the second direction between a line extending in the first direction and a side surface of each of the second electrodes continuously increases and decreases along the first direction. The side surface is unparallel to the first major surface. The organic light-emitting layer is provided between the first electrode and the second electrodes.

Abstract: According to one embodiment, an organic electroluminescent element includes: a first electrode having a first and a second major surfaces; a second electrode opposed to part of the first major surface; an organic luminescent layer provided between the first and the second electrodes; an optical layer having a third major surface opposed to the second major surface and a fourth major surface on opposite side from the third major surface. The fourth major surface includes a first region overlapping the second electrode, and a second region not overlapping the second electrode. The fourth major surface includes a first concave-convex provided in the first region and a second concave-convex provided in the second region. A planarization layer is provided on the second region and burying the second concave-convex.

Abstract: According to one embodiment, an organic electroluminescent device includes a transparent electrode, a metal electrode, an organic light emitting layer and an intermediate layer. The transparent electrode is transmissive with respect to visible light. The metal electrode is reflective with respect to the visible light. The organic light emitting layer is provided between the transparent electrode and the metal electrode and is configured to emit light including a wavelength component of the visible light. The intermediate layer contacts the metal electrode and the organic light emitting layer between the organic light emitting layer and the metal electrode and is transmissive with respect to the visible light. A thickness of the intermediate layer is 60 nanometers or more and less than 200 nanometers. A refractive index of the organic light emitting layer to the visible light is higher than a refractive index of the intermediate layer to the visible light.

Abstract: According to one embodiment, an organic electroluminescent device includes a transparent electrode, a metal electrode, an organic light emitting layer and an intermediate layer. The transparent electrode is transmissive with respect to visible light. The metal electrode is reflective with respect to the visible light. The organic light emitting layer is provided between the transparent electrode and the metal electrode and is configured to emit light including a wavelength component of the visible light. The intermediate layer contacts the metal electrode and the organic light emitting layer between the organic light emitting layer and the metal electrode and is transmissive with respect to the visible light. A thickness of the intermediate layer is 60 nanometers or more and less than 200 nanometers. A refractive index of the organic light emitting layer to the visible light is higher than a refractive index of the intermediate layer to the visible light.

Abstract: According to one embodiment, a display device, includes: a display unit and a control unit. The display unit has a plurality of segments. Each of the plurality of segments includes a plurality of organic light emitting layers to emit light of mutually different colors. The plurality of segments forms one of a plurality types of images by changing the colors of the emitted light from the plurality of segments. The control unit drives each of the plurality of segments of the display unit to emit light.

Abstract: In general, according to one embodiment, an illumination device includes a light emitting unit, a connection unit, a containing unit, and a second sealing unit. The light emitting unit includes a first substrate, a second substrate, an organic electroluminescent element, and a first sealing unit. The organic electroluminescent element is provided between the first substrate and the second substrate. The first sealing unit seals circumferential edge portions between the first substrate and the second substrate. The connection unit supplies power to the organic electroluminescent element. The containing unit has a space being airtight in an interior of the containing unit. The containing unit contains the light emitting unit inside the space. The second sealing unit is provided in the containing unit. The second sealing unit seals between a portion of the unit extending outside the containing unit and the containing unit.

Abstract: According to one embodiment, an organic electroluminescent device includes a transparent electrode, a metal electrode, an organic light emitting layer and an intermediate layer. The transparent electrode is transmissive with respect to visible light. The metal electrode is reflective with respect to the visible light. The organic light emitting layer is provided between the transparent electrode and the metal electrode and is configured to emit light including a wavelength component of the visible light. The intermediate layer contacts the metal electrode and the organic light emitting layer between the organic light emitting layer and the metal electrode and is transmissive with respect to the visible light. A thickness of the intermediate layer is 60 nanometers or more and less than 200 nanometers. A refractive index of the organic light emitting layer to the visible light is higher than a refractive index of the intermediate layer to the visible light.

Abstract: According to one embodiment, an organic electroluminescence device includes a first electrode, a second electrode, a first organic layer and a second organic layer. The second electrode includes a metal. The first organic layer is provided between the first electrode and the second electrode. The first organic layer is configured to emit light. The second organic layer is provided between the first organic layer and the second electrode. A refractive index of the second organic layer in a thickness direction for the light is lower than a refractive index of the first organic layer for the light.