Delta Optoelectronics, Inc.

Chiu-Fen Tseng

Lai-Cheng Chen

Chih-Chiang Huang

Mao-Cheng Weng

A method of fabricating an organic light emitting diode. A fluid is sprayed from a nozzle to dissolve organic material or a water-soluble material to be removed from a multi-layer structure of organic luminescent layer, hole transport layer, hole injection layer, electron transport layer and electron injection layer on a substrate. Using an air venting or pumping system such as a vacuum system, the dissolved organic or water-soluble material is removed. The multi-layer structure of organic luminescent layer, hole transport layer, hole injection layer, electron transport layer and electron injection layer can be patterned. After patterning, a step of encapsulation is performed. Thereby, the multi-layer structure is wrapped insulated from oxygen and water. The possibility for the cathode to react with oxygen or water molecules is reduced, and the device lifetime is effectively increased.

Growing community of inventors

Hsin-Cheng Hsiang, Taiwan

Chiu-Fen Tseng