Organic light emitting display and manufacturing method thereof
AssigneeSamsung Display Co., Ltd.
InventorWoong sik KIM
Life of this patent
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Abstract
An organic light emitting display includes a substrate, a thin film transistor disposed on the substrate, an overcoat layer having a first thru-hole formed therethrough to expose a portion of the thin film transistor and inclined at an angle with respect to the substrate, an upper passivation layer disposed on the overcoat layer and having a second thru-hole formed threrethrough to expose the portion of the thin film transistor, a first electrode connected to the thin film transistor through the second thru-hole, a light emitting layer disposed on the first electrode, and a second electrode disposed on the light emitting layer.
Claims12
A method of manufacturing an organic light emitting display, comprising the steps of:
- forming a thin film transistor on a substrate;
- forming an overcoat layer on the thin film transistor to including a first thru-hole formed therethrough to expose a portion of the thin film transistor, the first thru-hole having a surface inclined at an angle not greater than about 60 degrees with respect to an upper surface of the substrate;
- forming an upper passivation layer on the overcoat layer including a second thru-hole formed therethrough to expose the portion of the thin film transistor;
- forming a first electrode on the upper passivation layer so as to be connected to the thin film transistor;
- forming an organic light emitting layer on the first electrode;
- and
- forming a second electrode on the organic light emitting layer.
An organic light emitting display, comprising:
- a substrate;
- a thin film transistor disposed on the substrate;
- an overcoat layer having a first thru-hole formed therethrough to expose a portion of the thin film transistor, the first thru-hole including a surface inclined at an angle not greater than about 60 degrees with respect to an upper surface of the substrate;
- an upper passivation layer disposed on the overcoat layer and having a second thru-hole formed therethrough to expose the portion of the thin film transistor;
- a first electrode connected to the thin film transistor through the second thru-hole;
- a light emitting layer disposed on the first electrode;
- and
- a second electrode disposed on the light emitting layer.
Dependencies are inferred from the claim text.