A display device includes: a base substrate; tight-emitting elements on the base substrate with a TFT layers intervening between the tight-emitting elements and the base substrate, to form a display area; a sealing film including a sequentially formed stack of a first inorganic film and a second inorganic film and provided so as to cover the light-emitting elements; and an insular non-display area in the display area, wherein the non-display area includes a frame-shaped inner circular wall protruding in a thickness direction of the base substrate and extending along a boundary between the non-display area and the display area, and the inner circular wall includes on a surface thereof an organic buffer layer interposed between the first inorganic film and the second inorganic film.

In a display device including a light emitting element, light extraction efficiency and a luminance viewing angle characteristic are improved.

The display device includes a light emitting element, a condenser lens, and a scattering lens. The light emitting element is an element that emits light. The condenser lens is a lens that condenses the light emitted from the light emitting element. The scattering lens is a lens that scatters the light condensed by the condenser lens. Combination of the condenser lens and the scattering lens improves the light extraction efficiency and the luminance viewing angle characteristic.

An organic EL display device (100) is provided with an element substrate (20) that has a substrate (1) and a plurality of organic EL elements (3) supported on the substrate, and a thin film encapsulation structure (10) that covers the plurality of organic EL elements. The thin film encapsulation structure is provided with a first inorganic barrier layer (12), an organic barrier layer (14) formed upon the first inorganic barrier layer, and a second inorganic barrier layer (16) formed upon the organic barrier layer. The surface (12S) of the first inorganic barrier layer that is in contact with the organic barrier layer has a plurality of fine protrusions, and the maximum height Rz of the surface roughness profile is 20 nm to less than 100 nm.

A method of manufacturing a display device, including: a stacking step of stacking, on a glass substrate, a sacrificial resin layer, a metal layer, a transparent metal oxide layer, a base material resin layer, and a functional layer including at least one of a pixel circuit-constituting layer driving a plurality of pixels and a color filter layer, in this order; a radiating step of radiating a pulsed light of a xenon flash lamp to the metal layer through the glass substrate and the sacrificial resin layer; and a detaching step of reducing a force of adhesion between the sacrificial resin layer and the metal layer with the pulsed light radiated in the radiating step, and detaching the sacrificial resin layer from the metal layer.

A method of manufacturing a display device, including: a stacking step of stacking, on a glass substrate, a sacrificial resin layer, a metal layer, a transparent metal oxide layer, a base material resin layer, and a functional layer including at least one of a pixel circuit-constituting layer driving a plurality of pixels and a color filter layer, in this order; a radiating step of radiating a pulsed light of a xenon flash lamp to the metal layer through the glass substrate and the sacrificial resin layer; and a detaching step of reducing a force of adhesion between the sacrificial resin layer and the metal layer with the pulsed light radiated in the radiating step, and detaching the sacrificial resin layer from the metal layer.

A material of the vapor deposition mask that a resin film layer is disposed on a surface of a metal film layer on which one or more openings are formed is welded on a metal frame in a manner so that the resin film layer faces outward under a condition that a predetermined tension is applied in a predetermined direction; the metal frame is held on a base mount; a taper forming member/material having a reflection surface or the like is disposed to facing the metal film layer which is inward of the metal frame; laser beams are irradiated from above the resin film layer.

In a manufacturing method for an organic EL display device according to an embodiment, a support substrate is mounted on a surface of a vapor deposition mask (S3) which surface faces a vapor deposition source and has been subjected to a modification treatment (S2), and a desired organic material is evaporated to the vapor deposition mask, so as to deposit an organic layer formed of multiple layers in a desired area on the support substrate (S4), and further a second electrode is formed on the organic layer (S8). An exposed surface of the vapor deposition mask or an exposed surface of the organic layer formed on the vapor deposition mask is modified at at least one timing among: before depositing the organic layer formed of the multiple layers; before or after depositing each organic layer of the multiple layers forming the organic layer; and before forming the second electrode.

An organic EL display device (100) includes a plurality of pixels, and also includes an element substrate including organic EL elements (3) respectively located in the plurality of pixels and a bank layer (48) defining each of the pixels; and a thin film encapsulation structure (10) covering the plurality of pixels. The thin film encapsulation structure includes a first inorganic barrier layer (12) and an organic barrier layer (14) in contact with a top surface or a bottom surface of the first inorganic barrier layer. The plurality of pixels include a red pixel, a green pixel and a blue pixel. The organic EL display device further includes a polydiacetylene layer (52) selectively provided on a second inorganic barrier layer (16) of the thin film encapsulation structure on the blue pixel and exhibiting a blue color. The polydiacetylene layer is a polymer of 10,12-pentacosadiynoic acid.

To efficiently prevent oxidation of quantum dots in a light-emitting device including the quantum dots, a light-emitting device including a first electrode, a second electrode, and a quantum dot layer between the first electrode and the second electrode, in which quantum dots including a core, a shell covering the core, and a ligand coordinated with a surface of the shell and having an antioxidant property are stacked in the quantum dot layer, is provided.

The method for manufacturing a display device includes forming a light emitting element and a terminal on a substrate, forming a sealing film including a first inorganic insulating film and a second inorganic insulating film to cover the light emitting element and the terminal, forming a resist having a taper shape in which a thickness of an end portion on the sealing film becomes thinner as it goes to the terminal side by using a gray-tone mask, forming a taper shape in which thicknesses in end portions of the first inorganic insulating film and the second inorganic insulating film becomes thinner as it goes to the terminal side by etching, forming a touch electrode above the sealing film and forming wiring connected to the terminal via the end portions together with connecting to the touch electrode for detecting a touched position.