Organic light-emitting diode display panel and organic light-emitting diode display device

US10205112B2 · kind B2 · utility

Assignees

• Shanghai Tianma AM-OLED Co., Ltd. · CN
• TIANMA MICROELECTRONICS CO., LTD. · CN

Inventors

• Xiangcheng Wang · Shanghai, CN
• Jinghua Niu · Shanghai, CN
• Wei He · Beijing, CN
• Yuji Hamada · Tokyo, JP
• Chen-Yu Liu · Taoyuan, TW

Key dates

• Filing date: May 11, 2017
• Grant date: Feb 12, 2019
• Expiry date: Jun 2, 2037

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2101/30

Abstract

An organic light-emitting diode (OLED) display panel and an OLED display device are provided. The OLED display panel comprises a first substrate; a first electrode layer including a plurality of first electrodes; a first hole transport layer; a second hole transport layer including a plurality of hole transport units arranged in correspondence with the plurality of first electrodes respectively; a plurality of light-emitting devices disposed on a surface of the second hole transport layer and arranged in correspondence with the plurality of hole transport units respectively, wherein the hole transport units corresponding to the light-emitting devices of at least one color include at least two hole transport materials, and at least one of the at least two hole transport materials in the hole transport units has a higher lowest unoccupied molecular orbital (LUMO) than the corresponding light-emitting devices; an electron transport layer; and a second electrode layer.