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 novel light-emitting device with a microcavity structure which can improve the emission efficiency compared to the conventional one is provided. In a light-emitting device with a microcavity structure that emits light in a near-infrared range, reflectance of one or both of a first electrode (reflective electrode) and a second electrode (semi-transmissive and semi-reflective electrode) with respect to light in a near-infrared range (e.g., light with a wavelength of 850 nm) is higher than the reflectance thereof with respect to light in a visible light range (greater than or equal to 400 nm and less than 750 nm).

An optical member is arranged on a viewer-side of an image display panel. The optical member includes a circular polarizing plate having a first principal surface and a second principal surface, and a patterned light reflection layer arranged on a first principal surface-side of the circular polarizing plate. The circular polarizing plate is configured such that light incident from a second principal surface-side to a first principal surface-side is emitted as circular polarized light. The light reflection layer has a light-shielding property, and is configured to reflect light from a circular polarizing plate-side with fixed-end reflection.

An optical member is arranged on a viewer-side of an image display panel. The optical member includes a circular polarizing plate having a first principal surface and a second principal surface, and a patterned light reflection layer arranged on a first principal surface-side of the circular polarizing plate. The circular polarizing plate is configured such that light incident from a second principal surface-side to a first principal surface-side is emitted as circular polarized light. The light reflection layer has a light-shielding property, and is configured to reflect light from a circular polarizing plate-side with fixed-end reflection.

Provided is a display device in which pixels each configured by layering a first electrode, an organic layer, and a second electrode are formed in a two-dimensional matrix arrangement on a substrate; the first electrode is arranged for each pixel and includes a conductive light reflecting film formed on an insulating layer provided on the substrate, and a transparent electrode formed on the light reflecting film; vias conductive with the light reflecting films are formed in portions of the insulating layer positioned under the light reflecting films; and a voltage is applied to the first electrodes through the vias.

A display element includes a sub-pixel region including a wavelength conversion layer that converts a wavelength of excitation light, and further includes a low refractive index layer provided in a region between a wavelength conversion portion and an optical member.

A novel light-emitting device that is highly convenient, useful, or reliable is provided. The light-emitting device includes a function of emitting light, a first electrode, a second electrode, and a unit. The light has the maximum peak at a wavelength (lambda). The second electrode includes a region overlapping with the first electrode. The unit includes a region positioned between the first electrode and the second electrode. The unit includes a first layer, a second layer, and a third layer. The first layer includes a region positioned between the second layer and the third layer. The first layer contains a light-emitting material. The second layer includes a fourth layer and a fifth layer. The fifth layer includes a region positioned between the fourth layer and the first layer. The fourth layer contains a first organic compound. The first organic compound has a first refractive index with respect to light having the wavelength (lambda). The fifth layer is in contact with the fourth layer. The fifth layer contains a second organic compound. The second organic compound has a second refractive index with respect to light having the wavelength (lambda). The second refractive index is lower than the first refractive index.

Provided is a display device capable of curbing degradation of color purity.

The display device includes: a plurality of first electrodes that are two-dimensionally disposed; a second electrode that is provided to face first surfaces of the plurality of first electrodes; an electroluminescence layer that is provided between the plurality of first electrodes and the second electrode; an insulating layer that is provided between the adjacent first electrodes; and a plurality of reflective plates that are provided to second surfaces of the plurality of first electrodes, respectively. A plurality of resonator structures that resonate light emitted from the electroluminescence layer are configured of the second electrode and the plurality of reflective plates. The insulating layer includes a plurality of openings, and the openings are provided above the first surfaces of the first electrodes. The reflective plates include counter surfaces that face the electroluminescence layer via the first electrodes. In a case where regions corresponding to the openings in a plan view are defined as first regions, and regions corresponding to peripheral edge parts of the openings in the plan view are defined as second regions, a reflectance R1 on the counter surfaces in the first regions and a reflectance R2 on the counter surfaces in the second regions satisfy a relationship of R2<R1.

A light-emitting element includes: a first light-emitting layer containing quantum dots and emitting a first light including a first peak wavelength; a second light-emitting layer containing quantum dots and emitting a second light including a second peak wavelength greater than the first peak wavelength; a substrate on which the first light-emitting layer and the second light-emitting layer are arranged side-by-side in a first direction; and a first bank provided on the substrate and dividing the first light-emitting layer from the second light-emitting layer. The first bank is transparent to the first light.

A light-emitting device (20) includes a first light-emitting member (10a) and a second light-emitting member (10b). Each of the first light-emitting member (10a) and the second light-emitting member (10b) includes a first surface (12) and a second surface (14), and light is emitted from the first surface (12). The first light-emitting member (10a) includes a first region (16a) and a second region (16b), the first region (16a) of the first light-emitting member (10a) being located on the second surface (14) side of the second light-emitting member (10b) and the second region (16b) of the first light-emitting member (10a) being located on the first surface (12) side of the second light-emitting member (10b).