ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE
First Claim
1. An organic EL display device comprising:
- a first electrode which is formed on a main surface of an insulation substrate;
an organic EL layer of the multi-layered structure which is formed on the first electrode;
a second electrode which is formed on the organic EL layer; and
a sealing member which covers the second electrode and has a peripheral end portion thereof sealed to a peripheral portion of the insulation substrate, whereinthe organic EL display element includes a moisture-resistant structural body which covers an upper surface and a side surface of the organic EL layer and is formed by stacking a first moisture prevention layer, a moisture absorption layer and a second moisture prevention layer, whereinthe first moisture prevention layer, the moisture absorption layer and the second moisture prevention layer on the side surface of the organic EL layer are bent toward the side surface from the upper surface of the organic EL layer and, further, are bent parallel to a main surface of the insulation substrate from the side surface, and lower surfaces of the respective bent portions are hermetically adhered to the main surface of the substrate.
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Accused Products
Abstract
The present invention provides an organic EL display device which can maintain a light emitting efficiency and can prolong a lifetime by suppressing the degradation of an organic light emitting layer attributed to moisture. The organic EL display device includes a sealing film formed of an organic film which covers an organic light emitting layer which is constituted of a first electrode which is formed on a main surface of an insulation substrate, an organic EL layer of the multi-layered structure, and a second electrode and has a peripheral end portion sealed to a peripheral portion of the insulation substrate. The organic EL display device includes a moisture-resistant structural body which covers an upper surface and a side surface of the organic light emitting layer and is formed by stacking a first moisture prevention layer, a moisture absorption layer and a second moisture prevention layer in this order. The first moisture prevention layer, the moisture absorption layer and the second moisture prevention layer on the side surface of the organic light emitting layer are bent toward the side surface from the upper surface of the organic light emitting layer and, further, are bent parallel to a main surface of the insulation substrate from the side surface, and lower surfaces of the respective bent portions are hermetically adhered to the main surface of the substrate.
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Citations
8 Claims
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1. An organic EL display device comprising:
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a first electrode which is formed on a main surface of an insulation substrate; an organic EL layer of the multi-layered structure which is formed on the first electrode; a second electrode which is formed on the organic EL layer; and a sealing member which covers the second electrode and has a peripheral end portion thereof sealed to a peripheral portion of the insulation substrate, wherein the organic EL display element includes a moisture-resistant structural body which covers an upper surface and a side surface of the organic EL layer and is formed by stacking a first moisture prevention layer, a moisture absorption layer and a second moisture prevention layer, wherein the first moisture prevention layer, the moisture absorption layer and the second moisture prevention layer on the side surface of the organic EL layer are bent toward the side surface from the upper surface of the organic EL layer and, further, are bent parallel to a main surface of the insulation substrate from the side surface, and lower surfaces of the respective bent portions are hermetically adhered to the main surface of the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification