OLED display panel, manufacturing method thereof, electronic device

US11245101B2 · kind B2 · utility

Assignees

• HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD. · CN
• BOE Technology Group Co., Ltd. · CN

Inventors

• Shi Sun · Beijing, CN
• Xuewu Xie · Beijing, CN
• Hao Liu · Taoyuan, TW
• Bowen Liu · Tianjin, CN
• Yu Ai · Beijing, CN
• Yubao Kong · Beijing, CN
• Ameng Zhang · Beijing, CN
• Yang Xu · Wenhe, CN

Key dates

• Filing date: Jun 24, 2019
• Grant date: Feb 8, 2022
• Expiry date: Dec 30, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2102/351

Abstract

A manufacturing method of an OLED display panel is provided. At least one of a electroluminescent material layer and a second electrode layer is formed such that a thickness of the second electrode layer in a light emitting region of the OLED display panel is less than that of the second electrode layer in a non-light emitting region of the OLED display panel. The method includes applying charges of a first conductivity type to a layer structure located below a to-be-formed layer and in the light emitting region, applying charges of the first conductivity type to a material of the to-be-formed layer, and applying the material of the to-be-formed layer having the charges of the first conductivity type to the layer structure to form the to-be-formed layer. An OLED display panel manufactured by the above method and an electronic device are further provided.