An organic light-emitting diode, comprising: a reflective electrode; an organic layer formed on the reflective electrode, the organic layer including a light-emitting point; a transparent electrode formed on the organic layer; a transparent resin layer formed on the transparent electrode, the transparent resin layer including cone- or pyramid-shaped transparent resin structures; and an encapsulation glass formed on the transparent resin layer, wherein: - each of the cone- or pyramid-shaped transparent resin structures splays from the transparent resin layer toward the encapsulation glass in a normal direction of the encapsulation glass; characterized in that - a refractive index of the transparent resin layer is 1.3 times or more to 1.6 times or less as high as a refractive index of the cone- or pyramid-shaped transparent resin structures, - the refractive index of the transparent resin layer is not less than 2.15 and not more than 2.25; - each of the cone- or pyramid-shaped transparent resin structures has a predetermined apex angle in a cross section including a normal line of the encapsulation glass; and - the predetermined apex angle (unit: degree) of a cross section including a normal line of the encapsulation glass of each of the cone- or pyramid-shaped transparent resin structures is 2(44.3x - 18 ± 5), where "x" represents a ratio between the refractive index of the transparent resin layer and the refractive index of the cone- or pyramid-shaped transparent resin structures. a reflective electrode; an organic layer formed on the reflective electrode, the organic layer including a light-emitting point; a transparent electrode formed on the organic layer; a transparent resin layer formed on the transparent electrode, the transparent resin layer including cone- or pyramid-shaped transparent resin structures; and an encapsulation glass formed on the transparent resin layer, wherein: - each of the cone- or pyramid-shaped transparent resin structures splays from the transparent resin layer toward the encapsulation glass in a normal direction of the encapsulation glass; - each of the cone- or pyramid-shaped transparent resin structures splays from the transparent resin layer toward the encapsulation glass in a normal direction of the encapsulation glass; characterized in that - a refractive index of the transparent resin layer is 1.3 times or more to 1.6 times or less as high as a refractive index of the cone- or pyramid-shaped transparent resin structures, - the refractive index of the transparent resin layer is not less than 2.15 and not more than 2.25; - each of the cone- or pyramid-shaped transparent resin structures has a predetermined apex angle in a cross section including a normal line of the encapsulation glass; and - the predetermined apex angle (unit: degree) of a cross section including a normal line of the encapsulation glass of each of the cone- or pyramid-shaped transparent resin structures is 2(44.3x - 18 ± 5), where "x" represents a ratio between the refractive index of the transparent resin layer and the refractive index of the cone- or pyramid-shaped transparent resin structures. - a refractive index of the transparent resin layer is 1.3 times or more to 1.6 times or less as high as a refractive index of the cone- or pyramid-shaped transparent resin structures, - the refractive index of the transparent resin layer is not less than 2.15 and not more than 2.25; - each of the cone- or pyramid-shaped transparent resin structures has a predetermined apex angle in a cross section including a normal line of the encapsulation glass; and - the predetermined apex angle (unit: degree) of a cross section including a normal line of the encapsulation glass of each of the cone- or pyramid-shaped transparent resin structures is 2(44.3x - 18 ± 5), where "x" represents a ratio between the refractive index of the transparent resin layer and the refractive index of the cone- or pyramid-shaped transparent resin structures.