Abstract:
Organic light-emitting device including light-emitting portions disposed in two intersecting directions along a substrate main surface. Each light-emitting portion, in a first direction intersecting the substrate main surface, includes first and second electrodes, a charge transport layer, and an organic light-emitting layer, and is partitioned from adjacent light-emitting portions by first banks extending in a third direction being one of the two directions and second banks extending in a second direction being the other of the two directions. Each area between adjacent first banks is covered by the charge transport and organic light-emitting layers extending continuously across the area over the second banks. The first and second banks contain insulating material, a thickness of the second banks is no greater than 20% a height of the first banks, and the second banks have a surface portion contact angle smaller than that of the first banks.
Abstract:
A display panel includes: a substrate; a light emitting element array that is disposed above the substrate in an image display region; a peripheral electrode that is disposed above the substrate in a peripheral region, the peripheral region being located outside the image display region in plan view; a lyophilic insulating layer that is disposed on the peripheral electrode; and a peripheral bank that includes a liquid-repellent resin material including fluorine, and has an outer edge that overlaps the peripheral electrode in the peripheral region in plan view. The lyophilic insulating layer includes a resin material having a lower percentage of fluorine than the peripheral bank. At least a corner part of a bottom surface of the peripheral bank is disposed on the lyophilic insulating layer.
Abstract:
An organic EL display panel manufacturing method including: preparing a substrate; forming at least first electrodes on the substrate; forming, by performing photolithography on the substrate having the first electrodes, a bank layer made of a photoresist and having apertures corresponding one-to-one with the first electrodes; forming a functional layer in each of the apertures by applying an ink containing a functional material to the aperture and drying the applied ink; and forming at least a second electrode on the functional layer. The forming of the bank layer includes: applying the photoresist to the substrate having the first electrodes; forming apertures corresponding one-to-one with the first electrodes in the photoresist by performing exposure using a mask and then developing the photoresist; after forming the apertures, performing exposure of the photoresist having the apertures; after performing the exposure of the photoresist having the apertures, baking the photoresist.
Abstract:
An object is to provide an organic light-emitting panel and an organic light-emitting device capable of reducing ink repellence at portions of banks intersecting an insulating layer. Light-emitting units of the organic light-emitting panel are separated by the insulating layer and the banks. The insulating layer is disposed between first electrode units that are adjacent in a first direction, and the banks are disposed between first electrode units that are adjacent in a second direction. Portions of the banks that intersect with the insulating layer extend over the insulating layer in the first direction. Each of the portions of the banks over the insulating layer, in lateral cross-section, have a surface where an inclination angle θ1 and an inclination angle θ2 between the surface and a surface of the insulating layer satisfy θ1>20° and θ2>20°.
Abstract:
An organic EL device including: a substrate; a bank layer having therewithin an opening having an elongated shape in plan view; and a functional layer including an organic material, disposed within the opening, and having an elongated shape in plan view. The bank layer includes first banks opposing each other with the functional layer therebetween in an transverse direction of the functional layer and extending along a longitudinal direction of the functional layer and second banks opposing each other with the functional layer therebetween in the longitudinal direction of the functional layer and extending along the transverse direction of the functional layer. An angle θ2 between an inclined surface of a second bank and an upper surface of the substrate is greater than an angle θ1 between an inclined surface of a first bank and the upper surface of the substrate.
Abstract:
An organic light-emitting device including a substrate, first electrodes, first banks extending in a first direction, second banks extending in a second direction, organic functional layers each including an organic light-emitting layer, and a second electrode. The second banks include an organic fluorine compound, and have portions intersecting with and disposed above the first banks. Each of the first banks includes an organic bank layer including an organic material and an inorganic bank layer disposed on the organic bank layer. For each of the first banks, an uppermost surface thereof is a surface of the inorganic bank layer included therein.
Abstract:
An organic light-emitting device including a substrate, light emitters in a two-dimensional arrangement along a surface of the substrate, and banks that define the light emitters. The banks include elongated first banks and elongated second banks. The first banks and the second banks intersect. The first banks and the second banks include insulating material, and surfaces of the first banks and the second banks that face an organic functional layer of any of the light emitters contain fluorine. The first banks are above the second banks at each intersection between the first banks and the second banks. Fluorine concentration of the surface portion of each of the second banks is less than fluorine concentration of the surface portion of each of the first banks.