Organic light-emitting display panel and display device

US11145691B2 · kind B2 · utility

Assignee

• Shanghai Tianma AM-OLED Co., Ltd. · CN

Inventors

• Xiaoqian Sun · Shanghai, CN
• Xiangcheng Wang · Shanghai, CN
• Jinghua Niu · Shanghai, CN
• Weili Qiao · Shanghai, CN
• Jun Lin · New Taipei, TW
• Lei Wen · Longbeilingcun, CN
• Ping An · Shanghai, CN

Key dates

• Filing date: Dec 5, 2018
• Grant date: Oct 12, 2021
• Expiry date: Apr 5, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K77/10

Abstract

Provided are an organic light-emitting display panel and a display device, for improving the light extraction efficiency of OLED display panel. The organic light-emitting display panel includes an array substrate having a plurality of driving elements, and a plurality of organic light-emitting components. Each light-emitting component includes an anode, a cathode and an organic functional layer arranged between the anode and the cathode. The organic functional layer includes a hole transmission region, a light-emitting layer, and an electron transmission region stacked in a sequence from the anode to the cathode. With respect to visible light having a certain wavelength, a refractive index of the light-emitting layer is less than a refractive index of the electron transmission region, and the refractive index of the light-emitting layer is less than a refractive index of the hole transmission region. The above organic light-emitting display panel is applicable to the display device.