Light-emitting device

US11437430B2 · kind B2 · utility

Assignee

• Epistar Corporation · TW

Inventors

• Chao-Hsing Chen · Tainan, TW
• Chi-Shiang HSU · Hsinchu, TW
• Yong-Yang CHEN · Hsinchu, TW

Key dates

• Filing date: Dec 30, 2020
• Grant date: Sep 6, 2022
• Expiry date: Dec 30, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/841

Abstract

A light-emitting device includes a substrate with light-emitting units. The light-emitting units include a first light-emitting unit, a second light-emitting unit, and one or more of third light-emitting units. Each of the light-emitting units includes a first semiconductor layer, an active layer and a second semiconductor layer. An insulating layer includes a first insulating layer opening and a second insulating layer opening formed on each of the light-emitting units. A first extension electrode covers the first light-emitting unit and the first extension electrode covers the first insulating layer opening on the first light-emitting unit. A second extension electrode covers the second light-emitting unit and the second extension electrode covers the second insulating layer opening on the second light-emitting unit. First and second electrode pads cover different parts of the light-emitting units.