To prevent attenuation and modulation of light received or projected through a display surface.

An image display device includes a plurality of pixels arranged two-dimensionally. A pixel in a first pixel region including some pixels among the plurality of pixels includes a first light emitting region, a second light emitting region having a higher visible light transmittance than the first light emitting region, a first self-light emitting element that emits light from the first light emitting region, and a second self-light emitting element that emits light from the second light emitting region, and a pixel in a second pixel region other than the first pixel region among the plurality of pixels includes a third light emitting region having a lower visible light transmittance than the second light emitting region, and a third self-light emitting element that emits light from the third light emitting region.

A display device includes: an organic EL layer formed over a circuit section formed over a substrate, an insulating layer interposed between the circuit section and the organic EL layer; a cathode electrode formed over the organic EL layer in common for all pixels; and a contact electrode that is provided at an outer peripheral portion of an effective pixel region and that electrically connects the cathode electrode and the circuit section. In the display device, the cathode electrode is electrically connected to the contact electrode, on an inner side as compared to an end surface of a film formation area of the organic EL layer.

A display device includes a light-emitting-element layer including a plurality of light-emitting elements each including a first electrode, a functional layer, and a second electrode. The plurality of light-emitting elements are formed to emit lights in different colors. A nanoparticle layer is provided on a surface of the first electrode toward a light-emitting layer, and contains metal oxide nanoparticles that are electrically conductive.

A method of manufacturing an electroluminescence element according to an embodiment of the present invention includes forming a first electrode on a substrate, forming a first electron transport layer in contact with the first electrode, forming a first insulating layer having an opening in a region overlapping with the first electrode, forming a second electron transport layer includes metal oxide semiconductor by applying a composition to the opening and removing a solvent after application, forming a light emitting layer overlapping with the second electron transport layer, the light emitting layer containing an electroluminescent material, forming a second electrode in a region overlapping with the light emitting layer.

In a display device, sub-pixels each having a structure in which a first electrode and a second electrode are laminated with an organic compound layer having a light emitting layer interposed therebetween are provided in such an arrangement pattern that the sub-pixels are separated from each other two-dimensionally, and the second electrode is patterned so as to straddle the sub-pixels and be connected between the sub-pixels, and includes a plurality of branching portions connected to each other, and the branching portions are two-dimensionally arranged.

A display apparatus includes: a first substrate and a second substrate arranged so as to face each other; a display region included in each of the first substrate and the second substrate; a transparent region formed inside the display region in a planar view; a frame region formed between the display region and the transparent region so as to surround the transparent region along an outer edge of the transparent region in a planar view; a polarizer formed in either the first substrate or the second substrate and having an opening overlapping the transparent region; a first transparent conductive film formed in a first conductive layer between the first substrate and the second substrate; and a second transparent conductive film formed in a second conductive layer between the first conductive layer and the second substrate. The second transparent conductive film is in the frame region in a planar view.

A display device includes a base material, a thin film transistor provided on the base material, a light-emitting-element layer provided on the thin film transistor layer and including a plurality of light-emitting elements each including a first electrode, a functional layer, and a second electrode. The plurality of light-emitting elements are formed to emit lights in different colors. The display device also includes: a contact portion provided to a frame region and electrically connecting together a terminal unit provided to the frame region and the second electrode through a routed wire; and a block structure shaped into a frame and provided to the contact portion beside a display region, in order to block formation of the functional layer on the contact portion.

An organic EL device includes at least two light-emitting units and at least one intermediate electrode that are disposed between a lower electrode and an upper electrode, the at least one intermediate electrode being electrically connected to an external power source. The at least one intermediate electrode is disposed between the at least two light-emitting units. At least one of the at least one intermediate electrode consists of a first metal layer composed of a metal with a work function of 3 eV or lower and a second metal layer adjoining the first metal layer and composed of another metal with a work function of 4 eV or higher. The first and second metal layers have a total thickness of 15 nm or less. The first metal layer is adjacent to an anode side of the second metal layer, when a voltage is applied across the intermediate electrode and the electrode opposing the intermediate electrode.

An organic EL device includes at least two light-emitting units and at least one intermediate electrode that are disposed between a lower electrode and an upper electrode, the at least one intermediate electrode being electrically connected to an external power source. The at least one intermediate electrode is disposed between the at least two light-emitting units. At least one of the at least one intermediate electrode consists of a first metal layer composed of a metal with a work function of 3 eV or lower and a second metal layer adjoining the first metal layer and composed of another metal with a work function of 4 eV or higher. The first and second metal layers have a total thickness of 15 nm or less. The first metal layer is adjacent to an anode side of the second metal layer, when a voltage is applied across the intermediate electrode and the electrode opposing the intermediate electrode.

Provided are an AC electroluminescence device includes a bottom electrode including a first electrode and a second electrode apart from each other, wherein AC power is applied between the first electrode and the second electrode; an electron injecting layer disposed on the bottom electrode; an emission layer disposed on the electron injecting layer; a dielectric layer disposed on the emission layer; a top electrode, which is disposed on the dielectric layer and includes a first portion opposing the first electrode and a second portion opposing the second electrode; a first emission region defined by a first overlapping region of the emission layer between the first portion of the top electrode and the first electrode of the bottom electrode; and a second emission region defined by a second overlapping region of the emission layer between the second portion of the top electrode and the second electrode of the bottom electrode.