Organic electroluminescence element, its manufacturing method, and display device using organic electroluminescence element
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United States of America Patent
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Feb 27, 2001
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N/A
app pub date -
Dec 24, 1996
filing date -
Dec 28, 1995
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Abstract
The invention presents an organic electroluminescence element excellent in long-term durability and reliability, a manufacturing method excellent in mass producibility, and a display device using the organic electroluminescence element. Accordingly, to prevent growth of dark spots in the luminous layer by completely shutting off invasion of moisture or oxygen into an anode or an organic thin film layer, a shield material is adhered to an element by using low melting glass or low melting solder. To fuse the low melting glass or low melting solder used for this purposes, laser or ultrasonic wave is used. The surface of the element is sealed with a protective film in a film thickness of 3 microns to 30 microns, or a protective film composed of two-layer laminate film of insulating compound layer andmetal film. According to these inventions, a highly reliable organic electroluminescence element small in changes in the time course suchas growth of dark sports and lowering of luminance is obtained.
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