Process for the production of electroluminescence element, elect

Details Process for the production of electroluminescence element, elect Process for the production of electroluminescence element, elect

1998-02-19

1999-08-10

Patel, Vip

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313503, 313511, 313512, H01J 162

Patent

active

059363460

ABSTRACT:
An electroluminescence element provided with a luminescent layer sandwiched between two electrodes on an insulating substrate. The luminescent layer is composed of zinc sulfide with a fluoride or a luminescent center element added, wherein the X-ray diffraction spectrum thereof has only a single peak at an X-ray diffraction angle from the luminescent layer, ranging from 25.degree. to 30.degree. according to a thin film X-ray diffraction measurement method using Cu-Kd radiation, and no other peaks of the X-ray diffraction spectrum exist at an X-ray diffraction angle of 27.degree..

REFERENCES:
patent: 4508610 (1985-04-01), Freeman
patent: 4675092 (1987-06-01), Baird
patent: 4707419 (1987-11-01), Ogura
patent: 5369333 (1994-11-01), Inoguchi
Ohwaki et al., "High-Brightness Blue, Red, and Stable Green Thin-Film Electroluminescent Devices", Electrical Communications Laboratories, 1987, pp. 811-818.
Hirabayashi et al., "Color Electroluminescent Devices Prepared by Metal Organic Chemical Vapor Deposition", Japanese Journal of Applied Physics, Sep., 1987, vol. 26, No. 9, pp. 1472-1476.

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