Provided are a light-emitting device and a manufacturing method thereof, and a display device, and relates to the field of display technology. The light-emitting device includes: a light-emitting unit located on one side of a backplane; and an encapsulation layer located on one side of the light-emitting unit away from the backplane. The encapsulation layer includes: a first inorganic layer; a second inorganic layer located on one side of the first inorganic layer away from the backplane; an organic layer located between the first inorganic layer and the second inorganic layer; and a third inorganic layer located between the first inorganic layer and the organic layer. The refractive index of the first inorganic layer, the refractive index of the third inorganic layer, and the refractive index of the organic layer decrease sequentially.

An EL layer includes a low refractive index layer comprising an organic compound and a light-emitting layer comprising a light-emitting substance. The organic compound has an ordinary refractive index of 1.50 to 1.75 with respect to light at 455 nm to 465 nm, or an ordinary refractive index of 1.45 to 1.70 with respect to light at 633 nm. Given that a wavelength corresponding to an intensity 1/e times a maximum peak intensity in an emission spectrum of the light-emitting substance is λ.sub.n, a shortest λ.sub.n in a range of wavelengths longer than a maximum peak wavelength λ.sub.max of the light-emitting substance is λ.sub.1, and a longest λ.sub.n in a range of wavelengths shorter than λ.sub.max is λ.sub.2, a difference between λ.sub.1 and λ.sub.2 is greater than or equal to 5 nm and less than or equal to 45 nm.

A display device includes a first light emitting element, a second light emitting element, and a third light emitting element that are disposed on a substrate and emitting light of different colors, respectively; a first insulation layer disposed on the first light emitting element, the second light emitting element, and the third light emitting element, and including at least one opening; and a second insulation layer disposed on the first insulation layer, and disposed in the at least one opening, wherein a refractive index of the second insulation layer is higher than a refractive index of the first insulation layer, and the at least one opening overlaps at least one of the first light emitting element, the second light emitting element, and the third light emitting element in a plan view, and does not overlap at least another one in a plan view.

A display device includes a first light emitting element, a second light emitting element, and a third light emitting element that are disposed on a substrate and emitting light of different colors, respectively; a first insulation layer disposed on the first light emitting element, the second light emitting element, and the third light emitting element, and including at least one opening; and a second insulation layer disposed on the first insulation layer, and disposed in the at least one opening, wherein a refractive index of the second insulation layer is higher than a refractive index of the first insulation layer, and the at least one opening overlaps at least one of the first light emitting element, the second light emitting element, and the third light emitting element in a plan view, and does not overlap at least another one in a plan view.

A virtual display apparatus includes: a flexible display component layer having a light exit surface and a non-light exit surface opposite to the light exit surface; a lens layer disposed at the light exit surface of the flexible display component layer, and configured to converge light; a curvature adjustment layer disposed on the non-light exit surface of the flexible display component layer. The lens layer has a first surface facing the flexible display component layer, and the first surface of the lens layer and the light exit surface of the flexible display component layer have a gap therebetween. The curvature adjustment layer is configured to deform in response to at least one deformation signal, so as to adjust distances between the first surface of the lens layer and different positions of the light exit surface of the flexible display component layer along a thickness direction of the lens layer.

A display device includes a display region in which a plurality of pixels are arranged two-dimensionally. Each of the plurality of pixels includes a light-emitting layer and an optical member that refracts light from the light-emitting layer. In an orthographic projection of a first optical member included in a first pixel with respect to the light-emitting layer, a position of an apex of the first optical member and a position of a center of the first optical member are separated by a first distance.

A display device includes a display region in which a plurality of pixels are arranged two-dimensionally. Each of the plurality of pixels includes a light-emitting layer and an optical member that refracts light from the light-emitting layer. In an orthographic projection of a first optical member included in a first pixel with respect to the light-emitting layer, a position of an apex of the first optical member and a position of a center of the first optical member are separated by a first distance.

A display device includes a substrate, an electroluminescence element, a partition structure, a light conversion element and an intermediate layer. The electroluminescence element is disposed above the substrate. The partition structure is disposed above the electroluminescence element and includes a first opening. The light conversion element is disposed in the first opening. The intermediate layer is disposed above the light conversion element and the partition structure. The intermediate layer has a first part and a second part. In a top-view direction, the first part overlaps the light conversion element, the second part overlaps the partition structure, and a thickness of the first part is greater than a thickness of the second part.

A light-emitting unit (140) is formed on a substrate (100), and includes a light-transmitting first electrode (110), a light-reflective second electrode (130), and an organic layer (120) located between the first electrode (110) and the second electrode (130). A light-transmitting region is located between a plurality of light-emitting units (140). An insulating film (150) defines an end (142) of the light-emitting unit (140). A sealing member (200) is fixed to the light-emitting unit (140) directly or through an adhesive layer (210). In addition, a thickness of the substrate (100) is d, and a width of a portion of the second electrode (130) that is further on the outer side of the light-emitting unit (140) than the end (142) is W, d/2 W is established.

The present disclosure is related to an organic EL element including a capping layer that contains a compound represented by formula (A-1). In the formula, A and X are monovalent groups represented by formula (B-1) having 1 binding site among R.sub.1 to R.sub.6. Z represents a monovalent group represented by formula (B-1) having 1 binding site among R.sub.1 to R.sub.6, an aromatic hydrocarbon group, an aromatic heterocyclic group or a fused polycyclic aromatic group. Ar is a single bond or a divalent group of an aromatic hydrocarbon group, an aromatic heterocyclic group, or a fused polycyclic aromatic group. R.sub.1 to R.sub.6 each represent a linking group as a binding site, a hydrogen atom, a deuterium atom, a fluorine atom, a chlorine atom, a cyano group, a nitro group, a linear or branched alkyl group, a cycloalkyl group, an alkenyl group, an alkyloxy group, a cycloalkyloxy group, an aromatic hydrocarbon group, an aromatic heterocyclic group, a fused polycyclic aromatic group, or an aryloxy group. Q represents a nitrogen atom, an oxygen atom, or a sulfur atom. ##STR00001##