A display device includes a plurality of pixels each including a first light emitting element with a first light reflecting layer, a second light emitting element with a second light reflecting layer, and a third light emitting element with a third light reflecting layer, arranged in a two-dimensional matrix. Each of the light emitting elements includes a first electrode, an organic layer, and a second electrode. Grooves that each have a light shielding layer are formed in a boundary region between the light emitting elements. A bottom of the first groove and a bottom of the third groove are located at a position higher than a top surface of the first light reflecting layer. A bottom of the second groove is located at a position higher than a top surface of the second light reflecting layer.

An electroluminescent element according to an aspect of the disclosure includes: a pair of a cathode electrode and an anode electrode; a light-emitting layer provided between the cathode electrode and the anode electrode; an electron transport layer provided between the cathode electrode and the light-emitting layer; and a hole transport layer provided between the anode electrode and the light-emitting layer. The light-emitting layer includes ZnSe-based quantum dots including ZnSe and one of the electron transport layer and the hole transport layer is composed of ZnO particles having an average particle size of 3 nm or greater and 30 nm or less.

A plurality of light-emitting devices (10) include a plurality of light-emitting devices (10a), a plurality of light-emitting devices (10b), and a plurality of light-emitting devices (10c). The plurality of light-emitting devices (10) are aligned on a reflecting member (20). Six light-emitting devices (10c) are aligned in a straight line along one direction. Four light-emitting devices (10b) are aligned surrounding a region facing one ends of the six light-emitting devices (10c). Each of four light-emitting devices (10a) are aligned with each of the four light-emitting devices (10b) outside the four light-emitting devices (10b).

A novel light-emitting device with high emission efficiency is provided. A light-emitting device with a high blue index (BI) is provided. A light-emitting device with low power consumption is provided. A light-emitting device including a first electrode and a second electrode which are a reflective electrode and a semi-transmissive and semi-reflective electrode, and an EL layer sandwiched between the first electrode and the second electrode, where the EL layer contains an emission center substance, where when the emission center substance in the EL layer includes only one kind of substance, photon energy of a peak wavelength of light emitted from the light-emitting device is designed from an average value of photon energy of light emitted by the emission center substance in a solution state and emission edge energy on a short wavelength side of an emission spectrum of the emission center substance in the solution state.

An organic electroluminescence device including: at least a first pixel and a blue pixel apposed on a substrate, in which the first pixel and the blue pixel each have an anode and a cathode, and the first pixel and the blue pixel have a first emitting layer and a blue emitting layer, respectively; a hole transporting zone provided between the first emitting layer and the anode and between the blue emitting layer and the anode; and an electron transporting zone provided between the first emitting layer and the cathode and between the blue emitting layer and the cathode, in which the first emitting layer includes a delayed fluorescent second compound and a fluorescent first compound capable of emitting light ranging from 500 nm to 660 nm, and the electron transporting zone includes: a first common layer; and an additional layer provided between the first emitting layer and the cathode.

A novel light-emitting device is provided. A light-emitting device or a display device having high display quality is provided. An electronic device including a display portion with high display quality is provided. Provided is a light-emitting device including a first pixel which includes a first light-emitting element and a light-scattering layer; and a second pixel which includes a second light-emitting element and a first color conversion layer, in which an emission center substance in each of the first light-emitting element and the second light-emitting element is an organic compound, the light-scattering layer includes a first substance that scatters light emitted from the first light-emitting element, the first color conversion layer includes a second substance that emits light by absorbing light emitted from the second light-emitting element, and the first light-emitting element and the second light-emitting element have a microcavity structure.

An organic light emitting display device includes a substrate comprising a display area and a peripheral area and a first reflective member positioned in both the display area and the peripheral area. The first reflective member includes a first opening formed in a light-emitting region of the display area and a second opening formed in the peripheral area. The second reflective portion has openings having the same shape as openings formed in the first reflective portion. Thus, a reflectivity of the first reflective portion may be substantially the same as a reflectivity of the second reflective portion, and the first reflective portion and the second reflective portion may be perceived as an integral reflective member. Therefore, a bezel-less mirror organic light emitting display device may be manufactured.

An organic light emitting display device includes a substrate comprising a display area and a peripheral area and a first reflective member positioned in both the display area and the peripheral area. The first reflective member includes a first opening formed in a light-emitting region of the display area and a second opening formed in the peripheral area. The second reflective portion has openings having the same shape as openings formed in the first reflective portion. Thus, a reflectivity of the first reflective portion may be substantially the same as a reflectivity of the second reflective portion, and the first reflective portion and the second reflective portion may be perceived as an integral reflective member. Therefore, a bezel-less mirror organic light emitting display device may be manufactured.

A light emitting element, display device, and method of manufacture of the same are disclosed. In one example, a light emitting element includes a lower layer/interlayer insulation layer; a light reflection layer formed on the lower layer/interlayer insulation layer; an upper layer/interlayer insulation layer; a first electrode formed on the upper layer/interlayer insulation layer; an insulation film formed at least on a region of the upper layer/interlayer insulation layer where the first electrode is not formed; an organic layer formed over the insulation film from above the first electrode, the organic layer having a light emitting layer including an organic light emitting material; and a second electrode formed on the organic layer. A groove is formed in a portion of the upper layer/interlayer insulation layer located in an edge region of the light emitting element, and an upper portion of the groove is closed with the insulation film.

A light emitting element, display device, and method of manufacture of the same are disclosed. In one example, a light emitting element includes a lower layer/interlayer insulation layer; a light reflection layer formed on the lower layer/interlayer insulation layer; an upper layer/interlayer insulation layer; a first electrode formed on the upper layer/interlayer insulation layer; an insulation film formed at least on a region of the upper layer/interlayer insulation layer where the first electrode is not formed; an organic layer formed over the insulation film from above the first electrode, the organic layer having a light emitting layer including an organic light emitting material; and a second electrode formed on the organic layer. A groove is formed in a portion of the upper layer/interlayer insulation layer located in an edge region of the light emitting element, and an upper portion of the groove is closed with the insulation film.