Abstract: A light emitting device with a plurality of light emitting elements arranged on a main surface of a substrate is provided. Each of the plurality of light emitting elements includes a light emitter and a lens, and a surface of the lens includes a convex portion that has a convex bulge extending continuously in a direction along the main surface and has positive power, and a concave portion surrounded by the convex portion.

Abstract: A light emitting device is provided. The device includes a first chip and a second chip disposed on a main surface of a substrate, the first chip includes a first light emitting element and a first lens that overlaps a center of a first light-emission region of the first light emitting element, and the second chip includes a second light emitting element and a second lens that overlaps a center of a second light-emission region of the second light emitting element. A vertex of the first lens is shifted in a positive direction of a first direction from the center of the first light emitting region, and a vertex of the second lens is shifted in a negative direction of the first direction from the center of the second light emitting region.

Abstract: A light emitting device is provided. The device includes an insulating layer arranged on a main surface of a substrate, lower electrodes arranged on the insulating layer, an organic layer arranged to cover the lower electrodes, an upper electrode arranged to cover the organic layer, and a supply electrode configured to supply a potential to the upper electrode. The organic layer includes function layers each including a light emitting layer, and a charge generation layer arranged between the function layers, the upper electrode includes a contact portion that is in contact with the supply electrode, the insulating layer includes a trench between the contact portion and each of the lower electrodes, and a thickness of the charge generation layer in the trench is thinner than the thickness of the charge generation layer on the lower electrodes.

Abstract: A light emitting device including a first light emitting element disposed on a main surface of a substrate, and a first lens fixed to the substrate and overlapping a center of a first light-emission region of the first light emitting element in plan view in a direction perpendicular to the main surface. In the plan view in the direction perpendicular to the main surface, the center of the first light-emission region and a center of the first lens are separated from each other by a first distance in a direction parallel to the main surface.

Abstract: The present disclosure provides an apparatus including a substrate including a surface, first to fourth elements that emit first light or second light, and first to fourth lenses, in which the relationship between the size of the emission area and the relative position of the lenses differs between the first light and the second light so that color misregistration due to the viewing angle is reduced.

Abstract: A light emitting apparatus includes a substrate including a principal surface, first to fourth light emitting elements configured to emit first light or second light, first to fourth lenses, wherein relationships between sizes of light emitting regions and relative positions of lenses differ between the first light and the second light.

Abstract: A display apparatus includes a plurality of pixels arranged on a surface of a substrate, the plurality of pixels including a first pixel including a first sub-pixel that includes a first light emitting element and emits light of a first color and a second sub-pixel that includes a second light emitting element and emits light of a second color, a first lens disposed on a first light emitting area of the first light emitting element, and a second lens disposed on a second light emitting area of the second light emitting element. A vector from a center of the first light emitting area in plan view from a direction perpendicular to the main surface to an apex of the first lens differs from a vector from a center of the second light emitting area to an apex of the second lens in plan view from the direction.

Abstract: A light-emitting device includes: a substrate; a lens; and a light-emitting part provided between the substrate and the lens, wherein the lens has a convex curved surface portion on an opposite side to the substrate, in a first direction perpendicular to the substrate, the light-emitting part is more distant from the lens than a curvature center of the curved surface portion, when an apex of the curved surface portion in the first direction is referred to as a first position, and an end of the curved surface portion in a second direction in parallel with the substrate is referred to as a second position, and h represents a distance from the first position to the second position in the first direction, and r represents a distance from the first position to the second position in the second direction, h/r<0.95 is satisfied.

Abstract: A light emitting device includes a substrate, a lens, and a light emitting portion arranged between a main surface of the substrate and the lens. The lens functions as a collimator. The light emitting portion includes a first reflective layer, an organic layer, and a second reflective layer from a side of the substrate in this order. The first reflective layer includes one of a convex portion and a concave portion.

Abstract: Display device includes light-emitting element array of light-emitting elements and color filter layer including first bandpass filters configured to transmit light in first band, second bandpass filters configured to transmit light in second band, and third bandpass filters configured to transmit light in third band The color filter layer has an arrangement including at least first column in which the first bandpass filters are arranged, second column in which the second bandpass filters and the third bandpass filters are alternately arranged, and third column in which the second bandpass filters and the third bandpass filters are alternately arranged in the order different from the second column, and at least one first bandpass filter is in contact with at least one second bandpass filter and at least one third bandpass filter.

Abstract: Alight emitting device including a substrate, a lens with a refractive index n arranged on a main surface of the substrate, and a light emitting region arranged between the main surface and the lens is provided. A surface of the lens is convex and includes a vertex and an end portion. In a case where h represents a height between the vertex and the end portion, r represents a distance between the vertex and the end portion in orthogonal projection to the main surface, H represents a height between the end portion and the light emitting region, and 2a represents a width of the light emitting region, relationships of expressions below are satisfied h<r, ?<55°, and a>r?Htan?, where 2rh/(r2+h2)=sin?, sin?=nsin?, ?-?=?, and nsin?=sin?.

Abstract: The disclosure provides a light emitting device including a display element and an infrared light emitting element that are disposed on an insulating layer; and a reducer configured to reduce a quantity of light that is emitted in a direction of the display element from the infrared light emitting element in plan view from a direction perpendicular to the insulating layer.

Abstract: The present disclosure provides an apparatus including a substrate including a surface, first to fourth elements that emit first light or second light, and first to fourth lenses, in which the relationship between the size of the emission area and the relative position of the lenses differs between the first light and the second light so that color misregistration due to the viewing angle is reduced.

Abstract: A display apparatus includes a plurality of pixels arranged on a surface of a substrate, the plurality of pixels including a first pixel including a first sub-pixel that includes a first light emitting element and emits light of a first color and a second sub-pixel that includes a second light emitting element and emits light of a second color, a first lens disposed on a first light emitting area of the first light emitting element, and a second lens disposed on a second light emitting area of the second light emitting element. A vector from a center of the first light emitting area in plan view from a direction perpendicular to the main surface to an apex of the first lens differs from a vector from a center of the second light emitting area to an apex of the second lens in plan view from the direction.

Abstract: A light-emitting device includes: a substrate; a lens; and a light-emitting part provided between the substrate and the lens, wherein the lens has a convex curved surface portion on an opposite side to the substrate, in a first direction perpendicular to the substrate, the light-emitting part is more distant from the lens than a curvature center of the curved surface portion, when an apex of the curved surface portion in the first direction is referred to as a first position, and an end of the curved surface portion in a second direction in parallel with the substrate is referred to as a second position, and h represents a distance from the first position to the second position in the first direction, and r represents a distance from the first position to the second position in the second direction, h/r<0.95 is satisfied.

Abstract: An organic light-emitting device includes, on an insulating layer, a first lower electrode, an upper electrode, and an organic compound layer disposed between the first lower electrode and the upper electrode, wherein the organic compound layer includes a first light-emitting layer, a second light-emitting layer disposed between the first light-emitting layer and the upper electrode, and a first organic compound layer disposed between the first light-emitting layer and the second light-emitting layer, the first organic compound layer includes a second organic compound layer containing an alkali metal, and a third organic compound layer disposed between the second organic compound layer and the upper electrode and containing a compound having a lowest unoccupied molecular orbital level energy of -5.0 eV or less, and an orthogonal projection of the first organic compound layer onto the insulating layer is smaller than an orthogonal projection of the first light-emitting layer onto the insulating layer.

Abstract: An organic compound represented by formula (1) and an organic compound represented by formula (2). These organic compounds provide high color purity. In formulae (1) and (2), R1 to R24 are each independently selected from the group consisting of a hydrogen atom and a substituent.

Abstract: An electrophotographic photosensitive member including: a support, an undercoat layer formed above the support, a charge generation layer formed on the undercoat layer, and a charge transport layer formed above the charge generation layer, wherein the undercoat layer contains a polyamide resin and a titanium oxide particle which is surface-treated with a compound represented by Formula (1): when a volume of the titanium oxide particles to a volume of the polyamide resin in the undercoat layer is a, and an average primary particle diameter of the titanium oxide particles is b [?m], the following Equation (A) is satisfied: Equation (A): 14.0?a/b?19.1; and the charge generation layer contains a charge generating material and a thermoplastic resin having a hydroxyl group and a hydroxyl number of 50 mgKOH/g or more.

Abstract: A light emitting device including a first light emitting element disposed on a main surface of a substrate, and a first lens fixed to the substrate and overlapping a center of a first light-emission region of the first light emitting element in plan view in a direction perpendicular to the main surface. In the plan view in the direction perpendicular to the main surface, the center of the first light-emission region and a center of the first lens are separated from each other by a first distance in a direction parallel to the main surface.

Abstract: The disclosure provides a light emitting device including a display element and an infrared light emitting element that are disposed on an insulating layer; and a reducer configured to reduce a quantity of light that is emitted in a direction of the display element from the infrared light emitting element in plan view from a direction perpendicular to the insulating layer.