Patent application number | Description | Published |
20090160325 | ORGANIC ELECTROLUMINESCENT DEVICE AND METHOD FOR MANUFACTURING THE SAME - An organic EL device which drives over a wide range from low brightness to high brightness for light source applications, operates stably over a wide range of brightness and has excellent life property is provided. The device comprises at least one pair of electrodes | 06-25-2009 |
20090251675 | EXPOSURE DEVICE - In an exposure device having tiny light emitting elements aligned, a space required for drive circuits and wires is secured without affecting the size or alignment of the light emitting elements for arrangement and wiring of the drive circuits. In this exposure device, the drive circuits are separately arranged outside the column formed by the multiple organic EL elements, and, the length of the region occupied by the circuit exceeds one pitch in the alignment of the organic EL elements, and, the multiple drive circuits are arranged along the column. | 10-08-2009 |
20090284141 | ORGANIC ELECTROLUMINESCENCE ELEMENT AND MANUFACTURING METHOD THEREOF - To improve the light emission characteristics of a device when a transition metal oxide is used for the hole injection layer, in particular, to enhance the electron blocking characteristics of a transition metal oxide. An organic electroluminescence element comprising an anode, a cathode and a plurality of functional layers formed between the anode and the cathode, the functional layer containing a layer with a light-emitting function composed of at least one kind of an organic semiconductor and, between the anode and the layer with a light-emitting function, a charge injection layer composed of at least one kind of a transition metal oxide, wherein the ratio of the metal to oxygen at the anode side of the transition metal oxide layer is smaller than the stoichiometric ratio and at the same time, the ratio of the metal to oxygen at the layer with a light-emitting function side is greater than that at the anode side. | 11-19-2009 |
20100102310 | ORGANIC ELECTROLUMINESCENCE DEVICE AND MANUFACTURING METHOD THEREOF - To provide an organic electroluminescence element including a structure that facilitates manufacturing of a large scale organic EL panel and a manufacturing method thereof, the organic electroluminescence element includes: an anode; a cathode; an organic luminescent layer located between the anode and the cathode; and a hole injection layer located between the anode and the organic luminescent layer. The hole injection layer comprises a mixture of molybdenum oxide and tungsten oxide that contains a molybdenum element in a range of 9 atomic percent to 35 atomic percent. | 04-29-2010 |
20120061656 | ORGANIC EL ELEMENT - An organic light-emitting element includes an anode, a functional layer, and a hole injection layer between the anode and the functional layer. The functional layer contains an organic material. The hole injection layer injects holes to the functional layer. The hole injection layer comprises tungsten oxide and 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 binding energy. | 03-15-2012 |
20120178191 | ORGANIC ELECTROLUMINESCENCE ELEMENT AND MANUFACTURING METHOD THEREOF - To improve the light emission characteristics of a device when a transition metal oxide is used for the hole injection layer, in particular, to enhance the electron blocking characteristics of a transition metal oxide. An organic electroluminescence element comprising an anode, a cathode and a plurality of functional layers formed between the anode and the cathode, the functional layer containing a layer with a light-emitting function composed of at least one kind of an organic semiconductor and, between the anode and the layer with a light-emitting function, a charge injection layer composed of at least one kind of a transition metal oxide, wherein the ratio of the metal to oxygen at the anode side of the transition metal oxide layer is smaller than the stoichiometric ratio and at the same time, the ratio of the metal to oxygen at the layer with a light-emitting function side is greater than that at the anode side. | 07-12-2012 |
20130126841 | ORGANIC EL ELEMENT - An organic electroluminescent (EL) element comprises: an anode; a cathode; a functional layer disposed between the anode and the cathode, and including a light-emitting layer containing an organic material; a hole injection layer disposed between the anode and the functional layer; and a bank that defines an area in which the light-emitting layer is to be formed, wherein the hole injection layer includes tungsten oxide and 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, the hole injection layer has a recess in an upper surface of the area defined by the bank, and an upper peripheral edge of the recess is covered with a part of the bank. | 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 |
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 |
20140135530 | NOVEL COMPOUND AND ORGANIC DEVICE EMPLOYING SAME - The compounds represented by the following general formula have excellent properties as a charge transport material. In the formula, R | 05-15-2014 |