Organic light-emitting display apparatus

US10553651B2 · kind B2 · utility

Assignee

• SAMSUNG ELECTRONICS CO., LTD. · KR

Inventors

• Sanghoon Yim · Yongin-si, KR
• Donghoon Kim · Suwon-si, KR
• Samil Kho · Yongin-si, KR
• Mikyung Kim · Seoul, KR
• Eunkyoung Kim · Saint Augustine, US
• Seunggak Yang · Yongin-si, KR
• Kwanhee Lee · Seoul, KR

Key dates

• Filing date: Jun 22, 2018
• Grant date: Feb 4, 2020
• Expiry date: Jun 22, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2102/3026

Abstract

An organic light-emitting display apparatus includes a first sub-pixel, a second sub-pixel, and a third sub-pixel configured to emit different colors of light. The organic light-emitting display apparatus includes: a substrate; first through third pixel electrodes; a first organic emission layer configured to emit light having a first wavelength; a second organic emission layer configured to emit light having a second wavelength; a third organic emission layer configured to emit light having a third wavelength; an opposite electrode; a capping layer over the opposite electrode and having a refractive index with respect to the first wavelength that is higher than a refractive index with respect to the second wavelength by at least 7%; and a thin-film encapsulation layer over the capping layer.