Flexible substrate
AssigneeNitto Denko Corporation
InventorsTakeshi Murashige, Takashi Yamaoka, Daisuke Hattori, Yoshimasa Sakata, Tatsuki Nagatsuka
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Abstract
There is provided a flexible substrate having excellent flexibility and gas barrier properties. A flexible substrate 100 according to the present invention includes: a base material 20 including an inorganic glass 10 and resin layers 11 and 11′ placed on both sides of the inorganic glass 10; and an inorganic thin film 12 placed on a side of one of the resin layers where the inorganic glass is not placed, wherein the inorganic thin film 12 is formed on at least a peripheral edge of one surface of the base material.
Claims13
An organic electroluminescence display apparatus comprising a flexible substrate,
- wherein the flexible substrate comprises:
- a base material including an inorganic glass and resin layers placed on both sides of the inorganic glass;
- an inorganic thin film placed on a side of one of the resin layers where the inorganic glass is not placed, and
- a transparent electrode placed on a side of the inorganic thin film where the resin layers are not placed,
- wherein the inorganic thin film is formed on at least a peripheral edge of one surface of the base material,
- the inorganic thin film is formed from at least one inorganic compound selected from the group consisting of carbon, silicon, aluminum, magnesium, calcium, potassium, sodium, boron, titanium, lead, zirconium and yttrium,
- the inorganic thin film is of a three-layer configuration having an inorganic oxide layer, an inorganic nitride layer, and an inorganic oxide layer,
- the flexible substrate has a surface roughness Ra of 5 nm or less, and
- the flexible substrate has a total thickness of 20 to 200 μm.
Dependencies are inferred from the claim text.