Flexible substrate and flexible display device including the same
AssigneeLG Display Co., Ltd.
InventorsWon-Jeong Shin, Da-Young Kim, Won-Gyu Jeong
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Abstract
A flexible display device is disclosed. The disclosed flexible display device includes a flexible substrate; a thin film transistor on the flexible substrate; and a light emitting diode or a liquid crystal capacitor connected to the thin film transistor. The flexible substrate includes: a first base layer; a second base layer on a first surface of the first base layer; and a third base layer on a second surface of the first base layer. A surface hardness of the second base layer is greater than a surface hardness of the third base layer, and an adhesion strength of the third base layer is greater than an adhesion strength of the second base layer.
Claims17
A flexible substrate, comprising:
- a first base layer;
- a second base layer on a first surface of the first base layer;
- and
- a third base layer on a second surface of the first base layer,
- wherein a surface hardness of the second base layer is greater than a surface hardness of the third base layer, and an adhesion strength of the third base layer is greater than an adhesion strength of the second base layer,
- wherein each of the second and third base layers comprises a silane compound and a siloxane compound,
- wherein the siloxane compound comprises a compound represented by the formula:
- where R is hydrogen, methyl group or ethyl group, and n is an integer from 2 to 30, inclusive, and
- wherein the silane compound comprises a compound represented by one of the formulas:
- where R is hydrogen, methyl group or ethyl group.
A flexible display device, comprising:
- a flexible substrate;
- a thin film transistor on the flexible substrate;
- and
- a light emitting diode or a liquid crystal capacitor connected to the thin film transistor,
- wherein the flexible substrate includes:
- a first base layer;
- a second base layer on a first surface of the first base layer;
- and
- a third base layer on a second surface of the first base layer,
- wherein a surface hardness of the second base layer is greater than a surface hardness of the third base layer, and an adhesion strength of the third base layer is greater than an adhesion strength of the second base layer, and
- wherein the first base layer and third base layer are disposed between the second base layer and the thin film transistor and the third base layer is disposed between the first base layer and the thin film transistor.
Dependencies are inferred from the claim text.