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US 9,865,670 B2Granted
Flexible display device and manufacturing method thereof
AssigneeSamsung Display Co., Ltd.
InventorsHye Kyung Park, Young Su Kim
Life of this patent
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Abstract
A flexible display device includes: a flexible substrate including a bending area; an insulating layer formed on the flexible substrate and including at least one cutout formed to correspond to the bending area; and a plurality of wires formed along a surface shape of the insulating layer in the bending area. The at least one cutout may include an inclined lateral wall, and a width of the inclined lateral wall may be equal to or greater than a depth of the cutout.
Claims17
A flexible display device comprising:
- a flexible substrate including a bending area;
- an insulating layer formed on the flexible substrate and including at least one cutout formed to correspond to the bending area;
- and
- a plurality of wires formed along a surface shape of the insulating layer in the bending area,
- wherein the at least one cutout includes an inclined lateral wall,
- wherein a width of the inclined lateral wall is greater than a depth of the cutout,
- wherein the inclined lateral wall includes a first lateral wall and a second lateral wall spaced apart from each other,
- wherein a bottom surface of the at least one cutout is disposed between the first lateral wall and the second lateral wall, and
- wherein the plurality of wires are formed along a top surface of the insulating layer, the first lateral wall, the bottom surface, the second lateral wall, and a top surface of the insulating layer.
6 more elements
A flexible display device comprising:
- a display area in which a display unit is formed;
- a bending area contacting one side of the display area;
- and
- a data driver area contacting one side of the bending area and overlapping the display area,
- wherein an insulating layer including a cutout and a plurality of wires formed along a surface shape of the insulating layer are disposed in the bending area, and
- the cutout includes an inclined lateral wall, and a width of the inclined lateral wall is greater than a depth of the cutout,
- wherein the inclined lateral wall includes a first lateral wall and a second lateral wall spaced apart from each other,
- wherein a bottom surface of the cutout is disposed between the first lateral wall and the second lateral wall, and
- wherein the plurality of wires are formed along a top surface of the insulating layer, the first lateral wall, the bottom surface, the second lateral wall, and a top surface of the insulating layer.
6 more elements
A manufacturing method of a flexible display device, comprising:
- forming an insulating layer on a flexible substrate;
- forming a cutout by isotropic etching in the insulating layer by using an etching paste, the cutout including an inclined lateral wall and a width of the lateral wall being greater than a depth of the cutout, wherein a depth of the cutout is controlled by adjusting an etching time of the etching paste;
- forming a plurality of wires along a surface shape of the insulating layer in which the cutout is formed;
- and
- forming a bending area by bending a portion of the flexible substrate in which the cutout is formed.
2 more elements
Dependencies are inferred from the claim text.