OPTICAL LAMINATE
To provide an optical laminate that has an excellent light extraction function.SOLUTION: An optical laminate according to an embodiment of the present invention comprises: a light extraction layer that has first and second planes, one of the first and second planes being provided with a light extrac...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide an optical laminate that has an excellent light extraction function.SOLUTION: An optical laminate according to an embodiment of the present invention comprises: a light extraction layer that has first and second planes, one of the first and second planes being provided with a light extraction mechanism including a recess; a first cover sheet that is laminated, via a first adhesive agent layer, on the principal surface side where the light extraction mechanism of the light extraction layer is provided; and a second cover sheet that is laminated, via a second adhesive agent layer, on the principal surface side where the light extraction mechanism of the light extraction layer is not provided. A region having a smaller refractive index than the refractive index of the first or the second adhesive agent layer is provided on either the first or the second principal surface side of the light extraction layer.SELECTED DRAWING: Figure 1
【課題】優れた光取り出し機能を有する光学積層体を提供すること。【解決手段】本発明の実施形態による光学積層体は、第1主面と第2主面とを有し、第1主面または第2主面のいずれか一方に、凹部を含む光取り出し機構が設けられている、光取り出し層と;光取り出し層の光取り出し機構が設けられた主面側に、第1の粘着剤層を介して積層された、第1のカバーシートと;光取り出し層の光取り出し機構が設けられていない主面側に、第2の粘着剤層を介して積層された、第2のカバーシートと;を有し、光取り出し層の第1主面側または第2主面側のいずれか一方の側に、第1の粘着剤層または第2の粘着剤層の屈折率よりも小さい屈折率を有する領域が設けられている。【選択図】図1 |
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