Organic light-emitting display device having a repair area
AssigneeLG Display Co., Ltd.
InventorsYoung-Mi KIM, Woo-Sup SHIN, Sie-Hyug CHOI
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Abstract
Provided is an organic light-emitting display device which enables a fast and secure repair process without changing optical characteristics. The organic light-emitting display device includes a lower electrode, an organic emitting layer, an upper electrode and an optical compensation layer which are sequentially stacked. The upper electrode is thinner than the lower electrode. An opening is formed by particles in the organic emitting layer and the upper electrode. The opening caused by the particles is extended between the lower electrode and the organic emitting layer.
Claims20
An organic light-emitting display device comprising:
- a lower electrode on a lower substrate;
- an organic emitting layer on the lower electrode, the organic emitting layer including a first penetrating hole;
- an upper electrode on the organic emitting layer, the upper electrode including a second penetrating hole aligned with the first penetrating hole;
- and
- an optical compensation layer on the upper electrode, the optical compensation layer covering the second penetrating hole,
- wherein the sidewall of the first penetrating hole includes a lower sidewall which is negatively tapered, and a upper sidewall on the lower sidewall which is positively tapered.
An organic light-emitting display device comprising:
- a lower substrate including a normal area and a repair area;
- a light-emitting structure on the lower substrate, the light-emitting structure including a lower electrode, an organic emitting layer and an upper electrode, which area sequentially stacked, the upper electrode being thinner than the lower electrode;
- an optical compensation layer on the upper electrode of the light-emitting structure;
- and
- a penetrating hole on the repair area of the lower substrate, the penetrating hole penetrating the organic emitting layer and the upper electrode of the light-emitting structure,
- wherein an end portion of the organic emitting layer facing the penetrating hole includes an undercut.
An organic light-emitting display device comprising:
- a light-emitting structure including a lower electrode, an organic emitting layer and an upper electrode, which are sequentially stacked, the upper electrode being thinner than the lower electrode;
- an optical compensation layer on the upper electrode of the light-emitting structure;
- and
- a penetrating hole penetrating the organic emitting layer and the upper electrode of the light-emitting structure.
A method for manufacturing a light-emitting display device comprising:
- depositing a light-emitting structure including a lower electrode layer, a light-emitting layer and an upper electrode layer, which are sequentially stacked;
- depositing an optical compensation layer on the upper electrode layer of the light-emitting structure;
- and
- passing an electrical current through the light-emitting structure sufficient to produce a hole at a repair area penetrating both the light-emitting layer and the upper electrode of the light-emitting structure.
Dependencies are inferred from the claim text.