Abstract: An organic electroluminescent display device of the present invention includes: a substrate; an anode (first electrode); an organic layer including a light-emitting layer; a cathode (second electrode); a reflective layer and a semi-transmissive reflective layer provided to interpose an organic layer; and a plurality of sub-pixels of different colors in which light emitted from the organic layer is repeatedly reflected between the reflective layer and the semi-transmissive reflective layer such that light of a specific wavelength is enhanced and emitted. The substrate is bent or curved, and an optical path length between the reflective layer and the cathode (semi-transmissive reflective layer) in a sub-pixel of a predetermined color of a flat region (first region) is different from an optical path length between the reflective layer and the cathode (semi-transmissive reflective layer) in a sub-pixel of a same color as the predetermined color of a bent region (second region).

Abstract: A vapor deposition mask (10) has a fine-irregularities structure (14), provided on a contact surface of the vapor deposition mask (10), which is configured to attract, by van der Waals force, a film formation target substrate (30) so as to surround a plurality of apertures (12). The contact surface makes contact with the film formation target substrate (30).

Abstract: The organic electroluminescent element of the present invention includes, in the given order: an anode; a light-emitting layer; and a cathode, the light-emitting layer including a luminescent dopant layer and a luminescent host layer, the luminescent dopant layer containing a luminescent dopant material and substantially no luminescent host material, the luminescent host layer containing a luminescent host material and substantially no luminescent dopant material.

Abstract: A mixed material for vapor deposition of lithium contains lithium oxide M1 in an amount of 90% or more, sodium chloride (at least one material selected from oxides, sulfides, chlorides, and fluorides of alkali metals) M2 having a melting point lower than the melting point of lithium oxide M1, and magnesium oxide (at least one material selected from oxides and sulfides of alkaline-earth metals) M3 having a melting point higher than the melting point of lithium oxide M1.

Abstract: A method of producing a vapor deposition mask includes the steps of (i) preparing a mixture which contains a resin material and an inorganic filler and (ii) shaping, with use of a reactor which serves as a shaping die, the mixture so that the mask substrate is shaped, the mask substrate containing a resin made of the resin material and the inorganic filler mixed in the resin.

Abstract: The organic electroluminescent element of the present invention includes, in the given order: an anode; a light-emitting layer; and a cathode, the light-emitting layer including a luminescent dopant layer and a luminescent host layer, the luminescent dopant layer containing a luminescent dopant material and substantially no luminescent host material, the luminescent host layer containing a luminescent host material and substantially no luminescent dopant material.

Abstract: The organic EL display panel includes: an active matrix substrate including a thin-film transistor; and an organic EL element disposed on the active matrix substrate, the organic EL element including, in the order from the active matrix substrate side, a cathode electrically connected to the thin-film transistor, a first charge conversion layer in contact with the cathode, a first hole injection layer, a first hole transport layer, a first light-emitting layer, a first electron transport layer, a first electron injection layer, a second charge conversion layer, and an anode in contact with the second charge conversion layer, the first charge conversion layer designed to inject electrons into the cathode and emit holes to the first light-emitting layer side, the second charge conversion layer designed to inject holes into the anode and emit electrons to the first light-emitting layer side.

Abstract: The present invention provides an organic electroluminescent panel capable of increasing the luminous efficacy and decreasing the driving voltage of a top emission (TE) organic EL element. The organic electroluminescent panel of the present invention includes: a substrate; and an organic electroluminescent element provided on the substrate. The organic electroluminescent element is a top emission element that includes, in the order from the substrate side: an anode; a light-emitting layer; an electron transport layer; a first metal layer; a p-type oxide layer; and a transparent cathode. The top emission element is configured to emit light from the transparent cathode side. The light-emitting layer and the electron transport layer are each formed from an organic material. At least one of a mixture layer of a p-type oxide and a hole transport material and a second metal layer is provided between the electron transport layer and the transparent cathode.

Abstract: A magnetic material section is provided on a mask substrate so as to be interposed between Y aperture lines of the mask substrate and between X aperture line of the mask substrate. A portion of the magnetic material section which portion is interposed between the X aperture lines has a first thickness and a second thickness which is less than the first thickness, the first thickness being that of each sub-portion thereof which is positioned between mutually adjacent ones of the Y aperture lines, the second thickness being that of each sub-portion thereof which is positioned between apertures which are mutually adjacent in a Y direction.

Abstract: Occurrence of a crosstalk phenomenon is prevented in a light-emitting device including a tandem element. The light-emitting device includes an insulating layer, a first lower electrode over the insulating layer, a second lower electrode over the insulating layer, a partition positioned over the insulating layer and between the first lower electrode and the second lower electrode, a first light-emitting unit over the first lower electrode, the partition, and the second lower electrode, intermediate layers over the first light-emitting unit, a second light-emitting unit over the intermediate layer, and an upper electrode over the second light-emitting unit. The partition has a first depression.

Abstract: A light-emitting device with high reliability is provided. A light-emitting device includes a substrate 101, an organic EL element 110 formed over the substrate, a counter substrate 102 which is disposed so as to face the substrate, a plurality of projection structures 102a which are formed on the counter substrate and face the organic EL element, and a thermal conductor 135a of a liquid, a solid, or the like, which is disposed between the substrate and the counter substrate. The plurality of projection structures and the organic EL element are each in contact with the thermal conductor.

Abstract: An organic EL display device includes a plurality of sub-pixels each including a first organic EL element and a second organic EL element, a temperature information detector configured to measure current-voltage characteristics of the second organic EL element included in each of the sub-pixels, and to detect, on the basis of a result of the measurement, temperature information of the second organic EL element included in each of the sub-pixels, and a correction unit configured to correct a driving signal of the first organic EL element included in each of the sub-pixels on the basis of the temperature information of the second organic EL element included in the same sub-pixel as the sub-pixel including the relevant first organic EL element.

Abstract: An organic electroluminescent display device of the present invention includes: a substrate; an anode (first electrode); an organic layer including a light-emitting layer; a cathode (second electrode); a reflective layer and a semi-transmissive reflective layer provided to interpose an organic layer; and a plurality of sub-pixels of different colors in which light emitted from the organic layer is repeatedly reflected between the reflective layer and the semi-transmissive reflective layer such that light of a specific wavelength is enhanced and emitted. The substrate is bent or curved, and an optical path length between the reflective layer and the cathode (semi-transmissive reflective layer) in a sub-pixel of a predetermined color of a flat region (first region) is different from an optical path length between the reflective layer and the cathode (semi-transmissive reflective layer) in a sub-pixel of a same color as the predetermined color of a bent region (second region).

Abstract: In an organic EL element equipped with an anode, a cathode, a luminescent layer provided between the anode and the cathode, a hole transport layer provided between the anode and the luminescent layer, and an electron transport layer provided between the cathode and the luminescent layer, the cathode is composed of a reflecting electrode. The electron transport layer is composed of a doped electron transport layer to which an n-type dopant material is added and a non-doped electron transport layer to which an n-type dopant material is not added. A first reflection surface that reflects light from the luminescent layer is provided at an interface between the doped electron transport layer and the non-doped electron transport layer.

Abstract: A display according to an embodiment of the present invention includes an element substrate, a display section including a plurality of pixels each including a plurality of light-emitting elements, and monitoring elements for detecting the temperature of the light-emitting elements. The light-emitting elements each include an anode, a cathode, and a light-emitting layer placed between the anode and the cathode. The monitoring elements each include an anode, a cathode, and a light emission-suppressing layer containing the same light-emitting material as the light-emitting layer. When voltages are supplied to the monitoring elements, the light emission-suppressing layers do not emit any visible light or emit visible light with a luminance lower than the case where the same voltages as the above voltages are applied to the light-emitting elements.

Abstract: A mixed material for vapor deposition of lithium contains lithium oxide M1 in an amount of 90% or more, sodium chloride (at least one material selected from oxides, sulfides, chlorides, and fluorides of alkali metals) M2 having a melting point lower than the melting point of lithium oxide M1, and magnesium oxide (at least one material selected from oxides and sulfides of alkaline-earth metals) M3 having a melting point higher than the melting point of lithium oxide M1.

Abstract: An organic electroluminescent element includes, in the following order: an anode; a hole transport layer; a first mixed light-emitting layer; a luminescent dopant layer; a second mixed light-emitting layer; an electron transport layer; and a cathode, the first mixed light-emitting layer containing a first luminescent host material and a first luminescent dopant material, the second mixed light-emitting layer containing a second luminescent host material and a second luminescent dopant material, the luminescent dopant layer consisting essentially only of a third luminescent dopant material and being thinner than the first mixed light-emitting layer and the second mixed light-emitting layer.

Abstract: The present invention provides an organic EL element having high luminous efficacy and productivity and an organic EL panel including the organic EL element. The organic electroluminescent element of the present invention includes, in the given order, an anode, a hole-transport layer, a luminescent unit, an electron-transport layer, and a cathode. The luminescent unit includes a mixed light-emitting layer and includes a luminescent dopant layer at least between the hole-transport layer and the mixed light-emitting layer or between the electron-transport layer and the mixed light-emitting layer. The mixed light-emitting layer contains a first luminescent host material and a first luminescent dopant material. The luminescent dopant layer consists essentially of a second luminescent dopant material and is thinner than the mixed light-emitting layer.

Abstract: The organic electroluminescent element of the present invention includes, in the given order: an anode; a light-emitting layer; and a cathode, the light-emitting layer including a luminescent dopant layer and a luminescent host layer, the luminescent dopant layer containing a luminescent dopant material and substantially no luminescent host material, the luminescent host layer containing a luminescent host material and substantially no luminescent dopant material.

Abstract: The present invention provides an organic electroluminescent panel capable of increasing the luminous efficacy and decreasing the driving voltage of a top emission (TE) organic EL element. The organic electroluminescent panel of the present invention includes: a substrate; and an organic electroluminescent element provided on the substrate. The organic electroluminescent element is a top emission element that includes, in the order from the substrate side: an anode; a light-emitting layer; an electron transport layer; a first metal layer; a p-type oxide layer; and a transparent cathode. The top emission element is configured to emit light from the transparent cathode side. The light-emitting layer and the electron transport layer are each formed from an organic material. At least one of a mixture layer of a p-type oxide and a hole transport material and a second metal layer is provided between the electron transport layer and the transparent cathode.