Method of encapsulating organic electroluminescence device and organic electroluminescence device
AssigneeIdemitsu Kosan Co., Ltd.
InventorsMasato Fujita, Kenichi Fukuoka
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Abstract
A method of encapsulation for an organic EL device, which overcomes the difficulty of conventional methods by fully preventing the growth of dark spots in the organic EL device by providing an inert liquid layer having a dissolved oxygen concentration of 1 ppm or less on the periphery of the organic EL device.
Claims20
A method of encapsulating an organic electroluminescence device, which comprises providing a layer of an inert liquid having a dissolved oxygen concentration of 1 ppm or less on the periphery of an organic electroluminescence device, the electroluminescence device being formed by laminating an anode and a cathode through at least a light-emitting layer.
An encapsulated organic electroluminescence device comprising an organic device formed by laminating an anode and a cathode through at least a light-emitting layer, and a layer of an inert liquid which is provided on the periphery of the organic electroluminescence device, the layer of the inert liquid having a dissolved oxygen concentration of 1 ppm or less.
Dependencies are inferred from the claim text.