OLED THIN FILM PACKAGING STRUCTURE AND PACKAGING METHOD

An OLED thin film packaging structure, comprising a substrate (10) loaded with an OLED device (20) and a first inorganic barrier layer (30), an organic buffer layer (40), and a second inorganic barrier layer (50) sequentially covering the OLED device (20). The refractive index of the first inorganic...

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Bibliographic Details
Main Author GUO, Tianfu
Format Patent
LanguageChinese
English
French
Published 04.07.2019
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:An OLED thin film packaging structure, comprising a substrate (10) loaded with an OLED device (20) and a first inorganic barrier layer (30), an organic buffer layer (40), and a second inorganic barrier layer (50) sequentially covering the OLED device (20). The refractive index of the first inorganic barrier layer (30) gradually decreases in a direction from the OLED device (20) to the organic buffer layer (40), the refractive index of the organic buffer layer (40) is smaller than the refractive index of the first inorganic barrier layer (30), and the refractive index of the second inorganic barrier layer (50) is smaller than the refractive index of the organic buffer layer (40). The change of the refractive indexes of the first inorganic barrier layer (30), the organic buffer layer (40), and the second inorganic barrier layer (50) can increase the light emitting efficiency of the OLED device (20), block the penetration of external water vapor and oxygen into the OLED device (20), and avoid corrosion of the in
Bibliography:Application Number: WO2018CN72696