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| Number | Title | Issue Date |
| 5294870 | Organic electroluminescent multicolor image display device An organic electroluminescent multicolor image display device is disclosed containing an image display array made up of a plurality of light emitting pixels arranged in intersecting files (rows and columns). Each pixel contains a light transmissive first ... | 03/15/1994 |
| 5284779 | Method of forming organic charge-transfer thin films Superconducting or conducting organic charge-transfer complex film is epitaxially grown on a substrate which has been given an oriented surface by applying a stearic acid film. The periodic charge distribution over the oriented surface regulates the forma... | 02/08/1994 |
| 5283132 | Organic electroluminescent device for white luminescence An organic electroluminescent device for white luminescence, which includes a pair of opposite electrodes at least one of which is transparent, a hole transport layer and a luminescent layer. The layers are stacked in that order between the electrodes, th... | 02/01/1994 |
| 5281489 | Electroluminescent element Disclosed is an electroluminescent element comprising an anode, a cathode and, disposed therebetween, an organic luminescent layer comprising a mixture of a fluorescent luminescent agent, at least one hole moving and donating agent capable of moving holes... | 01/25/1994 |
| 5276381 | Organic electroluminescent device An organic electroluminescent device which includes a cathode, an organic emitting layer which includes a quinoline derivative and a quinacridone or quinazoline compound, an organic positive hole transport layer, and an anode, laminated in sequence, has a... | 01/04/1994 |
| 5276380 | Organic electroluminescent image display device An improvement in a light emitting device having an image display array consisting of a plurality of light emitting pixels arranged in intersecting columns and rows. The pixels are each located on a common electrically insulative light transmissive suppor... | 01/04/1994 |
| 5260625 | Color sequential illumination system A color sequential illumination system, such as, for example, a backlighting system for a liquid crystal display (LCD), comprises lamps for emitting blue, red and green light. The red and green light is provided by lamps including fluorescent dyes having ... | 11/09/1993 |
| 5256945 | Organic electroluminescence element An organic EL element comprises a cathode, an EL layer of organic compound, a first hole transport layer of organic compound, a second hole transport layer of organic compound and an anode which are laminated in sequence, wherein the second hole transport... | 10/26/1993 |
| 5247226 | Organic electroluminescent device An organic electroluminescent device having an anode, an organic hole injection transport layer, an organic luminescent layer and a cathode formed sequentially in this order, wherein the organic hole injection transport layer contains a metal complex and/... | 09/21/1993 |
| 5247190 | Electroluminescent devices An electroluminescent device comprises a semiconductor layer (4) in the form of a thin dense polymer film comprising at least one conjugated polymer, a first contact layer (5) in contact with a first surface of the semiconductor layer, and a second contac... | 09/21/1993 |
| 5231329 | Organic thin film electroluminescent device An organic thin film electroluminescent device is composed of an electron transport layer, a hole transport layer and a transparent electrode. The electron transport layer is constituted of an electron conducting polymer represented by the formula (I) ... | 07/27/1993 |
| 5227252 | Electroluminescent device Electroluminescent device with improved luminous efficiency, where a fluorescent emitting layer and a positive-hole transporting layer are layered on each other and arranged between a cathode and an anode, the two layers comprising organic compounds and t... | 07/13/1993 |
| 5200668 | Luminescence element This invention relates to an injection type thin film luminescence element having a high luminance and a high stability characterized in having two electrode layers at least one of which is transparent or translucent and having between these two electrode... | 04/06/1993 |
| 5153073 | Electroluminescent device Disclosed herein is an electroluminescent device comprising an anode and a cathode and one or plurality of organic compound layer sandwiched therebetween, at least one of the organic compound layers being composed of an organic compound represented by the... | 10/06/1992 |
| 5151629 | Blue emitting internal junction organic electroluminescent device (I) An internal junction organic electroluminescent device is disclosed comprised of, in sequence, an anode, an organic hole injecting and transporting zone, an organic electron injecting and transporting zone, and a cathode. The organic electron injecting an... | 09/29/1992 |
| 5150006 | Blue emitting internal junction organic electroluminescent device (II) An internal junction organic electroluminescent device is disclosed comprised of, in sequence, an anode, an organic hole injecting and transporting zone, an organic electron injecting and transporting zone, and a cathode. The organic electron injecting an... | 09/22/1992 |
| 5130603 | Organic electroluminescence device An electroluminescence device comprising, as a light emitting material, a compound of the formula: ##STR1## wherein R1 and R2 are each an alkyl, cyclohexyl, alkoxy, cyano or aryl, R3 and R4 are a heterocycl... | 07/14/1992 |
| 5128587 | Electroluminescent device based on organometallic membrane The present invention relates to electroluminescent devices, which may be used as colored display elements in indicator devices or flat plate multicolored displays. Electroluminescent elements can be categorized as natural or injection type. The present i... | 07/07/1992 |
| 5126214 | Electroluminescent element An electroluminescent element comprising an electroluminescent (EL) material part which emits a near ultraviolet ray of light and a fluorescent material part which absorbs the ultraviolet light emitted from the electroluminescent material and emits a fluo... | 06/30/1992 |
| 5124610 | Tritiated light emitting polymer electrical energy source An electrical energy source is created by the combination of a light emitting polymer material having at least one light emitting surface emitting light energy of a specified frequency bandwidth and a photovoltaic cell having a light collecting surface an... | 06/23/1992 |
| 5122711 | Electroluminescent device An electroluminescent device comprising a fluophor luminescent layer and a hole transport layer respectively composed of organic compounds and laminated to each other disposed between a cathode and an anode, said fluophor luminescent layer comprising a pa... | 06/16/1992 |
| 5121029 | Electroluminescence device having an organic electroluminescent element An electroluminescence device (EL device) and method of manufacture thereof in which an emitting material is made of an organic compound represented by general formula (I), (I') or (II): ##STR1## The EL device displays a high brightness by applying o... | 06/09/1992 |
| 5118986 | Electroluminescent device An electroluminescent device having: an anode and a cathode; and at least two organic compound layers sandwiched between said two electrodes, at least one of said organic compound layers being a hole transporting layer containing a compound represented by the ... | 06/02/1992 |
| 5104749 | Organic electroluminescent device An organic electroluminescent device having an organic hole injection transport layer and an organic luminescent layer formed between two conductive layers constituting electrodes, wherein the organic hole injection transfer layer contains a hydrazone com... | 04/14/1992 |
| 5104740 | Electroluminescent element The electroluminescent element of the present invention comprises a fluorescent substance layer containing a courmarinic or azacoumarinic derivative and a hole transport layer, both made of organic compounds and laminated on top of the other. The both lay... | 04/14/1992 |
| 5093210 | Electroluminescent device Disclosed herein is an electroluminescent device having a luminescent layer comprising a luminescent material, which is capable of directly converting the energy of electric field applied thereto into a light energy and capable of providing a large surfac... | 03/03/1992 |
| 5093691 | Organic thin-film EL device An organic thin-film electroluminescence (=EL) device is provided. This device includes as a main constituent of an organic luminescent thin-film layer sandwiched between a couple of electrodes at least one of which is transparent, a naphthalimide derivat... | 03/03/1992 |
| 5085947 | Electroluminescence device An electroluminescence device containing a first organic compound having positive-hole-transporting and luminous properties, such as a triphenyl amine compound, a stilbene derivative or a pyrazoline derivative, and a second organic compound having electro... | 02/04/1992 |
| 5085946 | Electroluminescence device An electroluminesence device comprising an organic compound having positive-hole-transporting property and a fluorescent organic compound having electron-transporting property in its luminescence layer interposed between a pair of electrodes. When the ele... | 02/04/1992 |
| 5077142 | Electroluminescent devices Disclosed herein an electroluminescent device for converting an energy of an electric field applied directly to a light energy and capable of producing surface luminescent for a large area different from conventional incandescent lamps, fluorescent lamps ... | 12/31/1991 |
| 5073446 | Organic electroluminescent device with stabilizing fused metal particle cathode An organic electroluminescent device is disclosed which is protected from dark spot formation. The device is comprised of, in sequence, a support, an anode, an organic electroluminescent medium, and a cathode. The cathode is comprised of an electron injec... | 12/17/1991 |
| 5069975 | Electroluminescent element Disclosed herein is an electroluminescent element which is constructed such that a fluorescent substance layer and a hole transport layer, both made of organic compounds and laminated on top of the other, are interposed between a cathode and an anode. The... | 12/03/1991 |
| 5061569 | Electroluminescent device with organic electroluminescent medium An internal junction organic electroluminescent device is disclosed comprising in sequence, an anode, an organic hold injecting and transporting zone, an organic electron injecting and transporting zone, and a cathode. The hole injecting and transporting ... | 10/29/1991 |
| 5059863 | Organic electroluminescent device An organic electroluminescent device having an organic hole injection transport layer and an organic luminescent layer formed between two conductive layers constituting electrodes, wherein the organic luminescent layer contains a compound selected from th... | 10/22/1991 |
| 5059861 | Organic electroluminescent device with stabilizing cathode capping layer An organic electroluminescent device is disclosed which is protected from dark spot formation. The device is comprised of, in sequence, a support, an anode, an organic electroluminescent medium, and a cathode containing a plurality of metals other than al... | 10/22/1991 |
| 5059862 | Electroluminescent device with improved cathode An internal junction electroluminescent device is disclosed containing, in sequence, an anode, an organic hole injecting and transporting zone, an organic electron injecting and transporting zone forming a junction with the organic hole injecting and tran... | 10/22/1991 |
| 5047687 | Organic electroluminescent device with stabilized cathode An organic electroluminescent device is disclosed which is protected from dark spot formation. The device is comprised of, in sequence, a support, an anode, an organic electroluminescent medium, and a cathode. The cathode contains a plurality of metals, a... | 09/10/1991 |
| 5012156 | Dispersion-type electroluminescence device The object of the present invention is to provide a dispersion-type electroluminescence device low in current density, excellent in luminous efficiency and less in uneven luminance. For attaining this object, dented portions present in an upper part of a ... | 04/30/1991 |
| 4950950 | Electroluminescent device with silazane-containing luminescent zone An electroluminescent device having a luminescent zone of less than one millimicron (μm) in thickness comprised of an organic host material capable of sustaining hole-electron recombination. The hole-transporting agent is a silazane.... | 08/21/1990 |
| 4907043 | Polycrstalline electroluminescent device with Langmuir-Blodgett film An electroluminescent device comprising a first electrode, a radiating layer adjacent to the first electrode, a second electrode and an organic thin film provided between the radiating layer and the second electrode, wherein the radiating layer is a polyc... | 03/06/1990 |
