Organic light-emitting display apparatus and lift-off process for manufacturing the same

US11569314B2 · kind B2 · utility

Assignee

• SAMSUNG ELECTRONICS CO., LTD. · KR

Inventors

• Yonghoon Yang · Hwaseong-si, KR
• Minsuk Ko · Yongin-si, KR

Key dates

• Filing date: Sep 24, 2020
• Grant date: Jan 31, 2023
• Expiry date: Apr 9, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K59/8731

Abstract

An organic light-emitting display apparatus includes: first and second pixel electrodes on a substrate, and spaced from each other; a pixel-defining film surrounding edges of the first and second pixel electrodes; a first intermediate layer on the first pixel electrode; a second intermediate layer on the second pixel electrode, spaced from the first intermediate layer; a first counter electrode on the first intermediate layer; a second counter electrode on the second intermediate layer, spaced from the first counter electrode; a first passivation layer on the first counter electrode; a second passivation layer on the second counter electrode, spaced from the first passivation layer; a first bank around the first passivation layer and protruding from the pixel-defining film to extend in a direction away from the substrate; and a second bank around the second passivation layer and protruding from the pixel-defining film to extend in the direction away from the substrate.