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US 2026/0190646 A1Published application
Display panel
AssigneeLG Display Co., Ltd.
InventorsHarin Kim, Seunghee Nam, Daehee Kim, Seokwoo Son
Life of this patent
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Abstract
In a display panel, a light-emitting element layer, which becomes a path for a horizontal leakage current between adjacent sub-pixels, can be disconnected, thereby reducing the occurrence of the horizontal leakage current, and a second electrode can be used as a common electrode. Accordingly, it is possible to prevent color mixing between adjacent sub-pixels and the occurrence of abnormal light emission.
Claims19
A display panel comprising:
- a substrate on which a plurality of sub-pixels are defined;
- a planarization layer disposed on the substrate;
- a first electrode disposed on the planarization layer;
- a light-emitting element layer disposed on the first electrode;
- a second electrode disposed on the light-emitting element layer;
- and
- a structure disposed between adjacent sub-pixels of the plurality of sub-pixels, the structure forming an undercut portion that disconnects the light-emitting element layer,
- wherein the structure includes a first structure in which a portion of the planarization layer is removed, and a second structure positioned on the first structure and electrically connected to the second electrode.
5 more elements
A display panel comprising:
- a substrate;
- a first electrode disposed on the substrate;
- a light-emitting element layer disposed on the first electrode;
- a second electrode disposed on the light-emitting element layer;
- and
- a structure disposed between a plurality of sub-pixels that implement different colors, the structure including a first structure comprising an organic material and a second structure that is conductive and is disposed on the first structure,
- wherein the light-emitting element layer is disconnected by the structure, and
- the second structure is electrically connected to the second electrode between the plurality of sub-pixels that implement different colors.
5 more elements
A display panel comprising:
- a substrate on which a plurality of sub-pixels are defined;
- a planarization layer disposed on the substrate and formed of insulation material;
- a first electrode disposed on the planarization layer;
- a light-emitting element layer disposed on the first electrode;
- a second electrode disposed on the light-emitting element layer;
- and
- a structure disposed between adjacent sub-pixels of the plurality of sub-pixels, the structure comprising undercut portions that disconnect the light-emitting element layer,
- wherein the structure includes a first structure which is formed integrally with the planarization layer, and a second structure positioned on the first structure and electrically connected to the second electrode, and
- wherein the undercut portions include a first undercut portion on a first side of the first structure and a second undercut portion on a second side of the first structure, in which portions of the planarization layer are recessed inward into the first undercut portion and into the second undercut portion.
6 more elements
Dependencies are inferred from the claim text.