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US 11,056,665 B2Granted
Electroluminescent display device
AssigneeLG Display Co., Ltd.
InventorsJin-Tae Kim, Woo-Ram Youn
Life of this patent
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Abstract
An electroluminescent display device includes a substrate; an overcoat layer disposed over the substrate; and a light-emitting diode disposed on the overcoat layer, comprising: a first electrode having a plurality of holes exposing a top surface of the overcoat layer, the holes having an inclined wall surface; a light-emitting layer disposed on the first electrode; and a second electrode disposed on the light-emitting layer.
Claims26
An electroluminescent display device, comprising:
- a substrate having a display area, the display area having a plurality of subpixel areas;
- an overcoat layer disposed over the substrate;
- a first electrode disposed on the overcoat layer;
- a bank layer disposed on the overcoat layer and the first electrode, the bank layer having an opening to expose the first electrode in each subpixel area;
- a light-emitting layer disposed on the first electrode;
- and
- a second electrode disposed on the light-emitting layer,
- wherein the first electrode within the opening of the bank layer has a plurality of holes therein, the holes exposing a top surface of the overcoat layer, wherein a thickness of the first electrode is thinner in a first region at an edge of a respective holes than in a second region that is spaced farther apart from the edge of the respective hole than the first region, thereby forming an inclined wall surface at the edge of the hole.
5 more elements
Dependencies are inferred from the claim text.