发明授权
US07812522B2 Aluminum oxide and aluminum oxynitride layers for use with phosphors for electroluminescent displays 有权
用于电致发光显示器的荧光体的氧化铝和氮氧化铝层

Aluminum oxide and aluminum oxynitride layers for use with phosphors for electroluminescent displays
摘要:
A novel laminate is provided to improve the operating stability of thioaluminate based phosphors used in ac thick film dielectric electroluminescent displays. The novel structure comprises a rare earth activated alkaline earth thioaluminate phosphor thin film layer and an aluminum oxide or aluminum oxynitride layer provided directly adjacent and in contact with the bottom of the phosphor thin film layer. The invention is particularly applicable to phosphors used in electroluminescent displays that employ thick dielectric layers subject to high processing temperatures to form and activate the phosphor films.
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