Connection substrate and display device having the same
AssigneeSamsung Electronics Co., Ltd.
InventorYoungbae KIM
Life of this patent
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Abstract
A connection substrate and a display device including the same are provided. The connection substrate includes a first conductive portion disposed on a tensile surface of a base film and having a first thickness, a second conductive portion disposed on a compressive surface of the base film and having a second thickness smaller than the second thickness, a first insulating layer disposed on the first conductive portion and a second insulating layer disposed on the second conductive portion. A distance from a top surface of the first conductive portion to a top surface of the first insulating layer is smaller than the first thickness.
Claims20
A connection substrate, comprising:
- a flexible base film having a tensile surface and a compressive surface opposite to the tensile surface;
- a first conductive portion disposed on the tensile surface, the first conductive portion having a first thickness;
- a first insulating layer disposed on the tensile surface, the first insulation layer covering the first conductive portion;
- a second conductive portion disposed on the compressive surface, the second conductive portion having a second thickness wherein the second thickness is smaller than the first thickness;
- and
- a second insulating layer disposed on the compressive surface, the second insulating layer covering the second conductive portion,
- wherein a first distance from a top surface of the first conductive portion to a top surface of the first insulating layer is smaller than the first thickness.
A connection substrate, comprising:
- a base film having a tensile surface and a compressive surface opposite the tensile surface;
- an outer part including a first conductive portion disposed on the tensile surface of the base film and a first insulating layer disposed on the first conductive portion;
- and
- an inner part including a second conductive portion disposed on the compressive surface of the base film and a second insulating layer disposed on the second conductive portion
- wherein a concentration of the first conductive portion in the outer part is greater than a concentration of the second conductive portion in the inner part.
A display device, comprising:
- a display panel;
- an external circuit substrate electrically connected to the display panel;
- and
- a connection substrate connecting the display panel with the external circuit substrate, the connection substrate having flexibility,
- wherein the connection substrate comprises:
- a flexible base film having a tensile surface and a compressive surface opposite to the tensile surface;
- a plurality of first conductive patterns on the tensile surface, each of the first conductive patterns having a first thickness;
- a plurality of second conductive patterns on the compressive surface, each of the second conductive patterns having a second thickness smaller than the first thickness;
- a first insulating layer disposed on the tensile surface to cover the plurality of first conductive patterns, wherein a distance from a top surface of the first conducive patterns to a top surface of the first insulating layer is smaller than the first thickness;
- and
- a second insulating layer disposed on the compressive surface to cover the plurality of the second conductive patterns,
- wherein a concentration of the first conductive patterns over a total area of the tensile surface is greater than a concentration of the second conductive patterns over a total area of the compressive surface.
Dependencies are inferred from the claim text.