Patent ID: 11903238
Assignee: LG DISPLAY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H  Y | IPC H

Claim 3:
4. A display device, comprising:
a flexible substrate including a first substrate layer, a second substrate layer disposed on the first substrate layer, and a substrate protecting layer between the first substrate layer and the second substrate layer;
a first common layer on the flexible substrate, the first common layer including a thin-film transistor within the first common layer;
a hole extending through each layer of the flexible substrate and the first common layer, the hole having a side surface; and
a second common layer on the first common layer, the second common layer including a light-emitting element within the second common layer,
wherein the substrate protecting layer includes a first tip, the first tip protruding further horizontally than a first side surface of the first substrate layer and a second side surface of the second substrate layer, the first tip having a top surface, a bottom surface opposite the top surface, and a side surface between the top surface and the bottom surface, the first tip and the first side surface of the first substrate layer forming a first undercut region;
wherein the first common layer includes a second tip, the second tip protruding further horizontally than the second side surface of the second substrate layer, the second tip having a top surface, a bottom surface opposite the top surface, and a side surface between the top surface and the bottom surface, the second tip and the second side surface of the second substrate layer forming a second undercut region; and
wherein the second common layer at least partially covers the first tip and the second tip, wherein the second common layer extends continuously from the top surface of the first tip to the side surface of the first tip,
wherein the second common layer covers the first side surface of the first substrate layer from a lateral direction, and
wherein the second common layer covers an entirety of the side surface of the second tip from the lateral direction, and extends continuously from the side surface of the second substrate layer to the side surface of the second tip,
wherein at least a portion of the bottom surface of the first tip is not covered by the second common layer in the first undercut region and at least a portion of the bottom surface of the second tip is not covered by the second common layer in the second undercut region, and
wherein an encapsulation layer is disposed on the second common layer in the non-active area and is continuously disposed from an upper portion of the second common layer to the side surface of the second substrate layer without being disconnected.