Electroluminescent element
Patent 5126214 Issued on June 30, 1992. Estimated Expiration Date: 
March 5, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 5, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesFluorescent dyestuffs, processes for their preparation and their use as laser dyestuffs Fluorescent dyestuffs, processes for their preparation and their use as laser dyestuffs Electroluminescent device Substituted and unsubstituted ring-bridged para-oligophenylene UV laser dyes Display unit Patent #: 5015999 InventorsAssigneeApplicationNo. 488702 filed on 03/05/1990US Classes:428/690, Fluroescent, phosphorescent, or luminescent layer257/E51.047, Macromolecular system with low molecular weight (e.g., cyanine dyes, coumarine dyes, tetrathiafulvalene) (EPO)257/E51.049, Polycondensed aromatic or heteroaromatic compound (e.g., pyrene, perylene, pentacene) (EPO)313/503, With particular phosphor or electrode material313/504, Organic phosphor313/505, With electrode matrix313/506, Plural layers428/216, No layer or component greater than 5 mils thick428/691, Halogen-containing428/917ELECTROLUMINESCENTExaminersPrimary: Robinson, Ellis P.Assistant: Nold, Charles Attorney, Agent or FirmForeign Patent References
International ClassesH01J 001/62H05B 033/14 Foreign Application Priority Data1989-03-15 JPAbstractAn 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 fluorescence in a visible light range from blue to red. The electroluminescent element provides for emission of lights with a wide range of wavelength and three elementary colors of blue, green and red can be expressed by appropriate combinations of the organic EL material and the fluorescent material. Consequently, the electroluminescent element provides for a full color display.Other References
Field of SearchFluroescent, phosphorescent, or luminescent layerELECTROLUMINESCENT Halogen-containing Including components having same physical characteristic in differing degree No layer or component greater than 5 mils thick With particular phosphor or electrode material Organic phosphor With phosphor embedding material With electrode matrix Plural layers With photosensitive layer With piezoelectric layer With dielectric layer | |
