Disclosed is an active matrix substrate that includes a plurality of TFTs. The active matrix substrate 11 includes a substrate 100, TFTs, a light transmission film 204, and a protection film Cap4. The TFTs are provided on the substrate 100 so as to correspond to a plurality of pixels, respectively. The light transmission film 204 is provided between the TFTs and the substrate 100. The protection film Cap4 covers an end surface 204b of the light transmission film 204, the end surface 204b being not parallel with the substrate 100. The TFT includes a gate electrode, a gate insulating film, a semiconductor film, a drain electrode, and a source electrode. The protection film Cap4 is arranged between the light transmission film 204 and the semiconductor film of the TFT.

An optical device includes a light emitting device and a sensor device (light receiving element). The light emitting device includes a substrate, a plurality of light emitting elements, and a plurality of light transmission portions. The substrate has a first surface and a second surface. The second surface is opposite to the first surface. The plurality of light emitting elements is positioned at the first surface side of the substrate. Each of the plurality of light transmission portions is positioned between adjacent light emitting elements. The light emitting device is light-transmissive by the plurality of light transmission portions. Light from the plurality of light emitting elements is mainly output from the second surface of the substrate. An amount of light emitted from each of the light emitting elements and leaked to the outside of the first surface of the substrate is reduced.

An optical device includes a light emitting device and a sensor device (light receiving element). The light emitting device includes a substrate, a plurality of light emitting elements, and a plurality of light transmission portions. The substrate has a first surface and a second surface. The second surface is opposite to the first surface. The plurality of light emitting elements is positioned at the first surface side of the substrate. Each of the plurality of light transmission portions is positioned between adjacent light emitting elements. The light emitting device is light-transmissive by the plurality of light transmission portions. Light from the plurality of light emitting elements is mainly output from the second surface of the substrate. An amount of light emitted from each of the light emitting elements and leaked to the outside of the first surface of the substrate is reduced.

An organic EL device of one aspect of the disclosure includes: a base material; an insulating layer provided with a recessed portion on an upper face thereof; and a light-emitting element including a reflective layer provided on at least a surface of the recessed portion, a filling layer having optical transparency and filling the inside of the recessed portion with the reflective layer interposed between the filling layer and the recessed portion, a first electrode having optical transparency and provided on at least an upper layer side of the filling layer, an organic layer containing at least a light-emitting layer provided on an upper layer of the first electrode, a second electrode having optical transparency and provided on an upper layer side of the organic layer, and an edge cover layer covering at least an end portion of the first electrode, wherein the organic electroluminescence device includes a plurality of unit light emitting regions separated from one another, an excavated portion is provided in the insulating layer between adjacent unit light emitting regions, and at last the filling layer is provided inside the excavated portion.

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 display apparatus having a light detection function is provided. The display apparatus includes a first pixel and a second pixel. The first pixel includes a first subpixel and a second subpixel. The second pixel includes a third subpixel. The first subpixel is a subpixel that emits light with the shortest wavelength (e.g., blue light or light with a shorter wavelength than blue light) in subpixels included in the first pixel. The second subpixel has a function of receiving the light emitted by the first subpixel. The third subpixel is a subpixel that emits light with the shortest wavelength in subpixels included in the second pixel. The wavelength of the light emitted by the first subpixel is shorter than the wavelength of the light emitted by the third subpixel.

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.

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.

A method for fabricating a display device that easily achieves higher resolution is provided. A display device having both high display quality and high resolution is provided. A first EL film is formed over a first pixel electrode and a second pixel electrode; a first sacrificial film is formed to cover the first EL film; the first sacrificial film and the first EL film are etched to expose the second pixel electrode and to form a first EL layer over the first pixel electrode and a first sacrificial layer over the first EL layer; and the first sacrificial layer is removed. The first EL film and the second EL film are etched by dry etching, and the first sacrificial layer is removed by wet etching.