A novel functional panel that is highly convenient, useful, or reliable is provided. The functional panel includes a first element, a first reflective film, and an insulating film. The first element includes a first electrode, a second electrode, and a layer containing a light-emitting material; the layer containing a light-emitting material includes a region interposed between the first electrode and the second electrode; the first electrode has a light-transmitting property; and the first electrode has a first thickness. The first electrode is interposed between a region of the first reflective film and the layer containing a light-emitting material, and the first reflective film has a second thickness. The insulating film includes a first opening portion, and the first opening portion overlaps with the first electrode. The insulating film has a first step-like cross-sectional shape, and the first step-like cross-sectional shape surrounds the first opening portion. The first step-like cross-sectional shape includes a first step, and the first step is larger than or equal to a thickness obtained by adding the second thickness to the first thickness.

A display device includes a substrate and a light-emitting element provided on the substrate. The light-emitting element includes a light-emitting portion and a first light-exiting portion. The light-emitting portion includes, in order from the substrate side, a first electrode, a light-emitting layer, a second electrode, and a light absorption layer. The first light-exiting portion includes a first light-reflecting layer provided at an incline on the substrate, and a first opening provided in the light absorption layer.

A display panel includes a light-emitting substrate, an opposite substrate, and an intermediate layer assembly between the light-emitting substrate and the opposite substrate. The light-emitting substrate has a light-emitting surface configured to allow light to be emitted from, and the light emitted from the light-emitting surface is directed to the opposite substrate. The intermediate layer assembly includes a thin film encapsulation layer, a filler layer, and an overcoat that are sequentially stacked in a pointing direction vertically pointing from the light-emitting substrate to the opposite substrate. The thin film encapsulation layer includes at least two encapsulation sub-layers that are stacked in the pointing direction. In the pointing direction, refractive indexes of the encapsulation sub-layers gradually increase. A refractive index of the overcoat is higher than a refractive index of the filler layer.

Various embodiments set forth light emission display elements, and display devices that include such display elements. In some embodiments, a display element includes an electroluminescent light source and a pair of reflective elements that form a resonant cavity for a particular range of wavelengths and/or a particular polarization of light. One or both of the reflective elements can include meta-reflectors, such as anisotropic meta-reflectors or chiral meta-reflectors. An optional waveplate can be placed between the reflective elements to adjust the polarization state of light emitted by the display element.

An organic light emitting diode display includes: a substrate including a plurality of sub-pixels that each include an emission area and a non-emission area; a thin film transistor in the non-emission area; a passivation layer on the thin film transistor, the passivation layer including a surface that has random nano-patterns; a first overcoat layer on the passivation layer, the first overcoat layer including a surface having a plurality of micro lenses and the first overcoat layer having a first refractive index; a second overcoat layer on the first overcoat layer, the second overcoat layer including a flat surface and a second refractive index that is greater than the first refractive index of the first overcoat layer; and a light emitting diode on the second overcoat layer in the emission area.

A display device, includes: a substrate; a thin film transistor layer including a plurality of thin film transistors; a light-emitting element layer including a plurality of light-emitting elements; a display region displaying an image; and an electronic componen being disposed on a back face side of the display region with respect to the substrate, wherein the display region includes a first display region and a second display region, each of the plurality of light-emitting elements includes a first light-emitting element and a second light-emitting element, each of the first light-emitting element and the second light-emitting element, the first electrode of the first light-emitting element includes a first reflective conductive layer, and a first upper transparent conductive layer, the first electrode of the second light-emitting element includes a second transparent conductive layer, and the second transparent conductive layer is crystallized and is thicker than the first upper transparent conductive layer.

A light emitting device in which light emitting elements sealed by a sealing layer are arranged on a surface of a substrate, is provided. Each of the light emitting elements comprises a first electrode arranged between the substrate and the sealing layer, a second electrode arranged between the first electrode and the sealing layer, and an organic light emitting layer arranged between the first electrode and the second electrode. The light emitting device further comprises an insulating layer configured to cover a edge portion of the first electrode and arranged between the substrate and the sealing layer in a portion between two adjacent light emitting elements, and a light shielding member arranged between the two adjacent light emitting elements, extending through the insulating layer, and extending in the insulating layer and the sealing layer in a direction intersecting the surface.

A highly reliable display device is provided. The display device includes a pixel electrode including first to fourth conductive layers, and an EL layer including a functional layer and a light-emitting layer. The second to fourth conductive layers are stacked in this order and provided to cover the first conductive layer. The functional layer includes a region that covers the second to fourth conductive layers and is in contact with the fourth conductive layer. The light-emitting layer is provided over the functional layer. The side surface of the first conductive layer has a tapered shape with a taper angle less than 90° in the cross section. The second to fourth conductive layers each include a tapered portion in a region overlapping the side surface of the first conductive layer. The visible light reflectance of the third conductive layer is higher than that of the first, second, and fourth conductive layers.

A top-emitting subpixel structure may include at least one bank structure defining a plurality of emissive areas, and an emissive structure located in each emissive area. The subpixel structure may have a subpixel length and a subpixel width less than the subpixel length, a ratio of the subpixel length to the subpixel width defining a subpixel aspect ratio. Each emissive area may have an emissive area length and an emissive area width shorter than the emissive area length, a ratio of the emissive area length to the emissive area width defining an emissive area aspect ratio. The subpixel length may define a primary axis when the subpixel aspect ratio is greater than the emissive area aspect ratio; otherwise, the emissive area length may define the primary axis. At least a majority of the emissive areas may be arranged successively widthwise along a secondary axis perpendicular to the primary axis.

A display panel includes a light emitting element that includes a first electrode, a light emitting layer disposed on the first electrode, and a second electrode disposed on the light emitting layer, and that outputs a source light, a light control layer disposed on the light emitting element, and that includes light control patterns, and low refractive patterns disposed on an upper portion of each of the light control patterns, wherein light control patterns include a first light control pattern and a second light control pattern spaced apart from the first light control pattern, and the low refractive patterns include a first low refractive pattern disposed on the first light control pattern and a second low refractive pattern disposed on the second light control pattern, wherein the first low refractive pattern and the second low refractive pattern are spaced apart from each other on a plane.