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(11) | EP 3 035 774 A8 |
(12) | CORRECTED EUROPEAN PATENT APPLICATION |
published in accordance with Art. 153(4) EPC |
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(54) | LIGHT EMITTING ELEMENT AND METHOD FOR MANUFACTURING LIGHT EMITTING ELEMENT |
(57) A light emitting element 100 includes a base member 40, a sealing member 101 disposed
to face the base member 40, a concave-convex structure layer 142, a first electrode
92, an organic layer 94, a second electrode 98, and an adhesive layer 103. The concave-convex
structure layer 142, the first electrode 92, the organic layer 94, and the second
electrode 98 are formed on the base member 40 in that order. The adhesive layer 103
is positioned between the base member 40 and the sealing member 101. An outer periphery
142c of the concave-convex structure layer 142 is positioned between an inner periphery
103a and an outer periphery 103b of the adhesive layer 103. The light emitting element
100 includes the concave-convex structure layer 142 functioning as a diffracting grating,
and thus light extraction efficiency thereof is excellent. Further, a light emitting
part is sealed with sufficient sealing performance and deterioration of the light
emitting part due to moisture and oxygen is prevented. Thus, the light emitting element
100 has a long service life.
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