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US 12,127,337 B2Granted
Flexible substrate
AssigneeJapan Display Inc.
InventorTakumi Sano
Life of this patent
Estimating the term…
Abstract
According to one embodiment, a flexible substrate includes an insulating base including a first surface and a second surface on an opposite side to the first surface, a wiring layer provided on the second surface side of the insulating base and a resin layer including a support located on the first surface side of the insulating base and a coating layer located on the second surface side of the insulating base, the resin layer including a first area and a second area in planar view, the resin layer having a first elastic modulus in the first area and a second elastic modulus in the second area, and the first elastic modulus being greater than the second elastic modulus.
Claims10
A flexible substrate comprising:
- an insulating base comprising a first surface and a second surface on an opposite side to the first surface;
- a wiring layer provided on the second surface side of the insulating base;
- and
- a resin layer including a support located on the first surface side of the insulating base and a coating layer located on the second surface side of the insulating base, wherein
- the insulating base includes, in planar view, a plurality of wavy first portions extending along a first direction and arranged along a second direction intersecting the first direction, a plurality of wavy second portions extending along the second direction and arranged along the first direction, island-like portions at respective intersections between the wavy first portions and the wavy second portions, and a plurality of areas surrounded by the wavy first portions and the wavy second portions,
- the resin layer includes a first area and a second area in planar view,
- the resin layer has a first elastic modulus in the first area and a second elastic modulus in the second area, and
- the first elastic modulus is greater than the second elastic modulus, and
- sizes of the areas surrounded by the wavy first portions and the wavy second portions are made even when the flexible substrate is affixed to a surface with non-uniform curvature.
6 more elements
A flexible substrate comprising:
- an insulating base comprising a first surface and a second surface on an opposite side to the first surface;
- a wiring layer provided on the second surface side of the insulating base;
- and
- a resin layer including a support located on the first surface side of the insulating base and a coating layer located on the second surface side of the insulating base, wherein
- the insulating base includes, in planar view, a plurality of wavy first portions extending along a first direction and arranged along a second direction intersecting the first direction, a plurality of wavy second portions extending along the second direction and arranged along the first direction, island-like portions at respective intersections between the wavy first portions and the wavy second portions, and a plurality of areas surrounded by the wavy first portions and the wavy second portions,
- the resin layer includes a first area and a second area in planar view,
- the resin layer has a first film thickness in the first area and a second film thickness in the second area in a cross-sectional view,
- the first film thickness is greater than the second film thickness when the first area and the second area have no curvature,
- the first film thickness is equal to the second film thickness when the first area and the second area have curvature, and
- sizes of the areas surrounded by the wavy portions first and the wavy second portions are made even when the flexible substrate is affixed to a surface with non-uniform curvature.
7 more elements
A flexible substrate comprising:
- an insulating base comprising a first surface and a second surface on an opposite side to the first surface;
- a wiring provided on the second surface side of the insulating base;
- and
- a resin layer including a support located on the first surface side of the insulating base and a coating layer located on the second surface side of the insulating base, wherein
- the resin layer includes a first area and a second are in planar view,
- the resin layer has a first film thickness in the first area and a second film thickness in the second area in a cross-sectional view,
- the first film thickness is greater than the second film thickness when the first area and the second area have no curvature,
- the first film thickness is equal to the second film thickness when the first area and the second area have curvature, and
- a curvature of the first area is less than a curvature of the second area when the first area and the second area have curvature.
6 more elements
A flexible substrate comprising:
- an insulating base comprising a first surface and a second surface on an opposite side to the first surface;
- a wiring layer provided on the second surface side of the insulating base;
- and
- a resin layer including a support located on the first surface side of the insulating base and a coating layer located on the second surface side of the insulating base, wherein
- the resin layer includes a first area and a second area in planar view,
- the resin layer has a first film thickness in the first area and a second film thickness in the second area in a cross-sectional view,
- the first film thickness is greater than the second film thickness when the first area and the second area have no curvature,
- the first film thickness is equal to the second film thickness when the first area and the second area have curvature,
- the support includes a fifth film thickness in the first area and a sixth film thickness in the second area,
- the fifth film thickness is greater than the sixth film thickness when the first area and the second area have no curvature, and
- the coating layer has equal film thickness in the first area and the second area.
8 more elements
A flexible substrate comprising:
- an insulating base comprising a first surface and a second surface on an opposite side to the first surface;
- a wiring layer provided on the second surface side of the insulating base;
- and
- a resin layer including a support located on the first surface side of the insulating base and a coating layer located on the second surface side of the insulating base, wherein
- the resin layer includes a first area and a second area in planar view,
- the resin layer has a first film thickness in the first area and a second film thickness in the second area in a cross-sectional view,
- the first film thickness is greater than the second film thickness when the first area and the second area have no curvature,
- the first film thickness is equal to the second film thickness when the first area and the second area have curvature,
- the coating layer has a third film thickness in the first area and a fourth film thickness in the second area,
- the third film thickness is greater than the fourth film thickness when the first area and the second area have no curvature,
- the support has a fifth film thickness in the first area and a sixth film thickness in the second area, and
- the fifth film thickness is greater than the sixth film thickness when the first area and the second area have no curvature.
9 more elements
Dependencies are inferred from the claim text.