A method for preparing a light emitting device comprising: disposing an electron-injection layer comprising a metal oxide on a cathode, disposing a first layer adjacent the electron-injection layer, the first layer comprising a small molecule material with a bandgap of at least about 3 eV capable of blocking holes, forming an emissive layer comprising quantum dots capable of emitting blue light upon excitation at a surface of the first layer opposite the electron-injection layer; disposing a second layer comprising a material capable of transporting holes and blocking electrons with a bandgap of at least about 3 eV adjacent a surface of the emissive layer opposite the first layer, and disposing an anode over the second layer. A light-emitting device is also disclosed.

A method for preparing a light emitting device comprising: disposing an electron-injection layer comprising a metal oxide on a cathode, disposing a first layer adjacent the electron-injection layer, the first layer comprising a small molecule material with a bandgap of at least about 3 eV capable of blocking holes, forming an emissive layer comprising quantum dots capable of emitting blue light upon excitation at a surface of the first layer opposite the electron-injection layer; disposing a second layer comprising a material capable of transporting holes and blocking electrons with a bandgap of at least about 3 eV adjacent a surface of the emissive layer opposite the first layer, and disposing an anode over the second layer. A light-emitting device is also disclosed.

A division mask includes a main body including at least one opening pattern, and a clamping portion at an edge of the main body, the clamping portion having an increasing width with respect to an increasing distance from the main body, and the clamping portion including a fan-out portion extending from the main body and including at least one dummy pattern, and at least one branch portion having a decreasing width with respect to an increasing distance from the fan-out portion.

A division mask includes a main body including at least one opening pattern, and a clamping portion at an edge of the main body, the clamping portion having an increasing width with respect to an increasing distance from the main body, and the clamping portion including a fan-out portion extending from the main body and including at least one dummy pattern, and at least one branch portion having a decreasing width with respect to an increasing distance from the fan-out portion.

The film-forming method according to an embodiment of the present invention includes: a step A for forming a photocurable resin liquid film on a substrate; a step B for vaporizing the photocurable resin in a first region on the substrate by selectively irradiating the first region with infrared rays or visible light having a wavelength that is longer than 550 nm; and a step C for obtaining a photocured resin film by curing the photocurable resin in the second region on the substrate, said second region including the first region, by irradiating, simultaneously with the step 3 or after performing the step 3, the second region with light, to which the photocurable resin is sensitive.

A first damming wall and a second damming wall are provided in a frame region. The first damming wall surrounds a display region formed from a first organic material and overlaps with a circumferential end part of an organic layer. The second damming wall includes a top part formed from a second organic material in the periphery of the first damming wall, and overlaps with an edge of the circumferential end part of the organic layer. The second damming wall includes a bottom part located closer to a base substrate, the bottom part being formed from a material constituting parts of switching elements.

A display device includes a flexible substrate, and a display region having a plurality of pixels on the flexible substrate. The substrate includes a resin layer, a first inorganic insulating layer provided on the first resin layer, and a second resin layer provided on the first insulating layer. A thickness of the second resin layer is larger than a thickness of the first resin layer, and the first resin layer is a resin layer baked at a higher baking temperature than the second resin layer.

A method of manufacturing an organic device including: forming a plurality of organic device units in one direction at predetermined intervals; affixing a sealing member extending in the one direction, such that a part of each of a first and a second electrode layer in each of the organic device units is exposed and the sealing member straddles across the plurality of organic device units; and cutting the plurality of organic device units to which the sealing member is affixed; in the affixing, the sealing member including a sealing base material containing a material having conductivity, and an adhesive portion containing a pressure-sensitive adhesive is affixed to the organic device unit; in the cutting, the sealing member is cut such that a cutting blade is allowed to approach from the sealing member side, and the adhesive portion after being cut protrudes to the outside from the sealing base material.

An organic-EL display apparatus comprises an organic layer for each of a plurality of pixels each comprising at least three sub-pixels having substantially rectangular shapes. A first sub-pixel and a second sub-pixel are arranged in parallel with each other such that a long side of the first sub-pixel and a long side of the second sub-pixel are substantially parallel with each other; and a long side of a third sub-pixel is substantially parallel with a short side of each of the first and second sub-pixels. In the first and second sub-pixel, a variation in a thickness of the organic layer through a long-side direction is larger than a variation in the thickness through a short-side direction; and in the third sub-pixel, a variation in a thickness of the organic layer through a short-side direction is larger than a variation in the thickness through a long-side direction.

[Object] To provide an organic electro-luminescence device in which occurrence of failures such as local abnormal light emission and current leakage is suppressed. [Solution] An organic electro-luminescence device including: a recessed structure in which a first electrode is provided at a bottom part and a first member serves as a sidewall; a second electrode configured to cover an entire surface of the recessed structure; and an organic light emitting layer containing an evaporation material and sandwiched by the second electrode and the recessed structure. In the organic light emitting layer, a film thickness of a layer containing a leaky material is non-uniform at the bottom part of the recessed structure, and an entire film thickness of the organic light emitting layer is generally uniform at the bottom part of the recessed structure.