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US 2019/0355800 A1Published application
Display device
AssigneeSharp Kabushiki Kaisha
InventorsTakao SAITOH, Yohsuke KANZAKI, Seiji KANEKO, Masahiko MIWA, Masaki YAMANAKA
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Abstract
At a bending section of a frame region, an opening portion is formed on at least one layer of inorganic film included in a TFT layer, in which a residual layer of the inorganic film is formed, a flattening film is provided to plug the opening portion, and the frame wiring line is provided on the flattening film.
Claims10
1:
- A display device comprising:
- a resin substrate;
- a light-emitting element included in a display region, the light-emitting element being provided above the resin substrate with a TFT layer in between;
- a frame region provided around the display region;
- a terminal section provided at an end portion of the frame region;
- a bending section provided between the display region and the terminal section;
- a frame wiring line provided in the frame region, the frame wiring line extending to the terminal section with being coupled to the light-emitting element;
- and
- an at least one layer of inorganic film provided in the frame region, the at least one layer of inorganic film being included in the TFT layer overlaid on the resin substrate,
- wherein at the bending section, an opening portion is formed on the at least one layer of inorganic film,
- in the opening portion, a residual layer of the inorganic film is formed, and
- the frame wiring line is provided on a flattening film being provided to plug the opening portion.
9 more elements
2:
- The display device according to claim 1,
- wherein the residual layer is provided as a plurality of residual layers each having an island shape.
3:
- The display device according to claim 2,
- wherein the residual layer is provided greater than a line width of the frame wiring line in a plan view.
4:
- The display device according to claim 3,
- wherein the residual layer is provided to intersect the plurality of frame wiring lines.
5:
- The display device according to claim 2,
- wherein the residual layer is provided in a staggered manner in a plan view.
6:
- The display device according to claim 1,
- wherein the residual layer is provided to cover the resin substrate.
7:
- The display device according to claim 1,
- wherein the residual layer is formed with a part of a base coat film provided on the resin substrate.
8:
- The display device according to claim 7,
- wherein the base coat film is provided by layering a plurality of inorganic insulating films, and
- wherein the residual layer is formed with an inorganic insulating film as a lowermost layer among the plurality of inorganic insulating films.
9:
- The display device according to claim 1,
- wherein the light-emitting element includes an organic EL element.
10:
- The display device according to claim 1,
- wherein the resin substrate and the flattening film are each formed of polyimide resin.