Patent application number | Description | Published |
20130119413 | LIGHT-EMITTING ELEMENT, DISPLAY DEVICE, AND METHOD FOR PRODUCING LIGHT-EMITTING ELEMENT - A light-emitter including: a transparent first electrode; a charge injection transport layer; a light-emitting layer; and a transparent second electrode, layered in this order. The light-emitting layer is defined by a bank. The charge injection transport layer has a recessed structure including: an inner bottom surface in contact with a bottom surface of the light-emitting layer; and an inner side surface continuous with the inner bottom surface. The inner side surface includes: a lower edge continuous with the inner bottom surface; and an upper edge continuous with the lower edge. The upper edge is aligned with a bottom periphery of the bank, or has contact with a bottom surface of the bank. The charge injection transport layer has contact with a side surface of the light-emitting layer. | 05-16-2013 |
20130126842 | LIGHT EMITTING ELEMENT, METHOD FOR MANUFACTURING SAME, AND LIGHT EMITTING DEVICE - Each of organic light-emitting elements | 05-23-2013 |
20130126846 | ORGANIC EL ELEMENT, DISPLAY DEVICE, AND LIGHT-EMITTING DEVICE - An organic EL element comprising: an anode; a cathode; banks; a functional layer between the anode and the cathode, the functional layer including one or more sublayers including a light-emitting sublayer, the light-emitting sublayer defined by the banks and containing an organic material; and a hole injection layer between the anode and the functional layer, wherein the hole injection layer comprises tungsten oxide. An Ultraviolet Photoelectron Spectroscopy (UPS) spectrum, obtained from a UPS measurement, has a protrusion appearing near a Fermi surface and within a region corresponding to a binding energy range lower than a top of a valence band. The tungsten oxide contained in the hole injection layer satisfies a condition, determined from an X-ray Photoelectron Spectroscopy (XPS) measurement, that a ratio in a number density of atoms other than tungsten atoms and oxygen atoms to the tungsten atoms does not exceed approximately 0.83. | 05-23-2013 |
20130126847 | ORGANIC EL ELEMENT - In an organic EL element, a bank is formed on a hole injection layer so as to surround light-emitting layer. The hole injection layer is formed with a tungsten oxide thin film, and has, in an electronic state thereof, an occupied energy level 1.8 eV to 3.6 eV lower than the lowest energy level of a valence band of the hole injection layer. The hole injection layer has a recessed portion in an upper surface thereof. An inner surface of the recessed portion is in contact with a functional layer (light-emitting layer). the inner side surface of the recessed portion includes an upper edge that is one of aligned with part of a lower edge of the bank, the part being in contact with the functional layer, and in contact with a bottom surface of the bank. | 05-23-2013 |
20130126848 | ORGANIC ELECTROLUMINESCENCE ELEMENT AND METHOD OF MANUFACTURING THEREOF - An organic light-emitting element comprising: an anode; a cathode; banks; a functional layer between the anode and the cathode; and a hole injection layer between the anode and the functional layer. The functional layer includes at least a light-emitting sublayer defined by the banks and that contains an organic material. The hole injection layer comprises tungsten oxide and includes a crystal of the tungsten oxide, whose particle diameter is on an order of nanometers. Tungsten atoms constituting the tungsten oxide include both tungsten atoms with a valence of six and tungsten atoms with a valence less than six. The hole injection layer has a surface facing the functional layer, and a portion of the surface overlapping with the light-emitting sublayer is located closer to the anode than other portions, thereby forming a recessed structure having a recessed portion whose inner surface is in contact with the functional layer. | 05-23-2013 |
20130134403 | ORGANIC ELECTROLUMINESCENCE ELEMENT - An organic light-emitting element comprising: an anode; a cathode; banks; a functional layer between the anode and the cathode; and a hole injection layer between the anode and the functional layer. The functional layer includes one or more sublayers including a light-emitting sublayer defined by the banks and that contains an organic material. The hole injection layer comprises tungsten oxide, includes an occupied energy level that is approximately 1.8 electron volts to approximately 3.6 electron volts lower than a lowest energy level of a valence band of the hole injection layer in terms of a binding energy, has a surface facing the functional layer, and has a recessed structure such that a portion of the surface overlapping with the light-emitting sublayer is located closer to the anode than other portions. The recessed structure has a recessed portion whose inner surface is in contact with the functional layer. | 05-30-2013 |
20130134474 | LIGHT EMITTING ELEMENT, METHOD FOR MANUFACTURING SAME, AND LIGHT EMITTING DEVICE - Organic light-emitting elements each have the following structure: a transparent anode, a functional layer including a charge injection layer and an organic light-emitting layer, and a transparent cathode are layered on a substrate in the stated order; a bank defines a formation area of the organic light-emitting layer; the charge injection layer is a metal oxide layer formed by oxidizing an upper surface portion of the anode composed of the metal layer, and a portion of the charge injection layer that is positioned under the area is depressed so as to form a recess; and the upper peripheral edge of the recess is covered with a covering portion of the bank. | 05-30-2013 |
20130140542 | ORGANIC ELECTROLUMINESCENCE ELEMENT AND METHOD OF MANUFACTURING THEREOF - An organic EL element comprises: an anode; a cathode; a functional layer including at least a light-emitting layer; a hole injection layer disposed between the anode and the functional layer; and a bank. The hole injection layer contains tungsten oxide. Tungsten atoms constituting the tungsten oxide include both tungsten atoms with a valence of six and tungsten atoms with a valence less than six. The hole injection layer includes a crystal of the tungsten oxide. A particle diameter of the crystal is on an order of nanometers. The hole injection layer has a recessed portion whose inner side surface has an upper edge that is one of (i) aligned with part of a lower edge of the bank, the part being in contact with the light-emitting layer, and (ii) in contact with a bottom surface of the bank. | 06-06-2013 |
20130140543 | ORGANIC EL ELEMENT, DISPLAY DEVICE, AND LIGHT-EMITTING DEVICE - An organic EL element comprises: an anode; a cathode; a functional layer that is disposed between the anode and the cathode and includes at least a light-emitting layer; a hole injection layer disposed between the anode and the functional layer; and a bank. The hole injection layer contains tungsten oxide, and has a recessed portion. A UPS spectrum of the hole injection layer, obtained from a UPS measurement, has a protrusion appearing near a Fermi surface and within a region corresponding to a binding energy range lower than a top of a valence band. The tungsten oxide contained in the hole injection layer satisfies a condition, determined from an XPS measurement, that a ratio in a number density of atoms other than tungsten atoms and oxygen atoms to the tungsten atoms does not exceed approximately 0.83. | 06-06-2013 |
20140284588 | ORGANIC EL DISPLAY PANEL AND METHOD OF MANUFACTURING THE SAME - An organic electroluminescence display panel includes a thin-film transistor layer above a substrate. A planarizing film is above the thin-film transistor layer with contact holes being formed in the planarizing film. A bank is above the planarizing film. The bank includes openings arranged in rows and columns that define regions for forming organic electroluminescence elements. Each opening is between a pair of adjacent concaves in one of the columns. The concaves are formed in an upper surface of the bank and sunken into the contact holes. The upper surface of the bank has repellency. A light-emitting layer is formed in each opening by ejecting drops of an ink from nozzles of an inkjet head into the openings while moving the inkjet head relative to the substrate. The nozzles further eject drops of the ink into the concaves when above the concaves for ejecting the drops of the ink through every nozzle. | 09-25-2014 |
20140367669 | DISPLAY PANEL AND METHOD FOR MANUFACTURING SAME - A display panel where, within at least one aperture, an inter-layer insulation layer includes a planar region having a planar surface and a protruding region having a protruding surface relative to the planar region located wherever two or more of a gate electrode, a drain electrode, a source electrode, a first power supply signal wiring, and a second power supply signal wiring intersect, and an insulation film covers at least part of the protruding region and does not cover at least part of the planar region. | 12-18-2014 |