TWI778730B

• Main Authors: HU, YUANG, ZHUANG, FENG-HUI, PAN, XI-MING, LU, XIN-YI
• Format: Patent
• Language: Chinese
• Published: 21.09.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

A light-emitting diode device with a common electrode is a common cathode electrode structure, comprising a substrate, a plurality of light-emitting diode units, a plurality of electrode units, and a wavelength conversion unit. Each light-emitting diode unit includes a plurality of light-emitting sources and an epitaxial support structure, each having an n-type semiconductor layer, a light-emitting layer, and a p-type semiconductor layer formed upwardly in sequence from the substrate. The epitaxial support structure has a groove. Each electrode unit has a plurality of p-type electrodes correspondingly arranged on the p-type semiconductor layer of the light emitting source, and at least one common N electrode extending from the n-type semiconductor layer of the light-emitting diode unit to the top surface of the epitaxial support structure. The wavelength conversion unit is arranged on the other side of the substrate and is used for converting the wavelength of the light emitted by the light emitting source. I