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US 2022/0069036 A1Published application
Oled panel
AssigneeSeeya Optronics Co., Ltd.
InventorZhongshou Huang
Life of this patent
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Abstract
An OLED panel includes a plurality of light-emitting elements, that each light-emitting element includes a fence structure on a substrate and in an opening of a pixel definition layer. A trench is formed between the fence structure and the pixel definition layer. Charge transport layer is disconnected at the trench by a shadowing effect of the fence structure during thermal evaporation of the charge transport layer. Therefore, lateral current leakage between two adjacent light-emitting elements is minimized.
Claims12
An organic light-emitting diode (OLED) panel, comprising:
- a pixel array comprising a plurality of light-emitting elements;
- wherein
- each of the plurality of light-emitting elements comprises a fence structure, a first electrode layer, a pixel definition layer, a first charge transport layer, a light-emitting layer, a second charge transport layer, and a second electrode layer, that which are stacked on a substrate in evaporation sequence;
- and
- the pixel definition layer comprises an opening that exposes part of the first electrode layer;
- a vertical projection of the fence structure on the substrate is located inside a vertical projection of the opening on the substrate;
- a trench is formed between a sidewall of the fence structure and a sidewall of the opening, and the first charge transport layer is discontinued in the trench.
4 more elements
Dependencies are inferred from the claim text.