Elektrolumineszenzspeicher,申请号DE19671549143-传众专利搜索

Elektrolumineszenzspeicher

申请公布号：DE1549143(A1)

申请号：DE19671549143

申请日期：1967.09.29

申请公布日期：1971.02.18

申请人：

XEROX CORP.

发明人：KAZAN,BENJAMIN

分类号：H05B33/10;H05B33/12

主分类号：H05B33/10

摘要：1,201,375. Electroluminescence. XEROX CORP. 28 Sept., 1967 [29 Sept., 1966], No. 44127/67. Heading C4S. An eleotroluminscent device comprises a layer of electroluminescent material 13 between a layer of variable impedance material 14 and electrodes 11, the electroluminescent material having an inherent ability to emit light of reduced amplitude in a portion thereof. The electroluminescent material is Mn or Cu activated ZnS mixed with a transparent binder of epoxy or P.V.C. resin. After deposition on a glass substrate it is aged by passing a L.F. current between the electrodes, preferably in a high humidity atmosphere; the layer 14 may be deposited prior to aging provided that it is maintained in a high impedance state. The material 14 is ferromagnetic, e.g. Ba or BaSr titanate or Rochelle salt; a field effect semiconductor, e.g. ZnO, PbO, CdO or CdS or a photoconductor, e.g. CdSe, Se or Se alloys containing As or Te. The electrodes are of tin oxide deposited from the reaction of stannic acid, water and methanol vapours. If material 14 is photoconductive an opaque layer of lamp-black in a binder between layers 13, 14 prevents light feed-back.