Display substrate and manufacturing method thereof, and display apparatus

US12069891B2 · kind B2 · utility

Assignees

• Chengdu BOE Optoelectronics Technology Co., Ltd. · CN
• BOE Technology Group Co., Ltd. · CN

Inventors

• Cheng Zeng · Newmarket, CA
• Jaeho Lee · Seoul, KR
• Myoungsoo Lee · Beijing, CN
• Xuemei Cui · Beijing, CN
• Ruitao Li · Beijing, CN
• Shiqi Li · Beijing, CN
• Zhen SUN · Beijing, CN
• Lulin MA · Beijing, CN

Key dates

• Filing date: Nov 24, 2020
• Grant date: Aug 20, 2024
• Expiry date: Jan 7, 2042

Classification

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

Abstract

A display substrate includes a backplane, first light-emitting devices capable of emitting first color light, second light-emitting devices capable of emitting second color light that are all disposed on the backplane, a low-refractive-index intercalation layer disposed at a side, away from the backplane, of the first light-emitting devices and the second light-emitting devices, and an encapsulation layer. The encapsulation layer includes a first inorganic barrier layer, a first organic barrier layer and a second inorganic barrier layer that are sequentially stacked on a side of the low-refractive-index intercalation layer away from the backplane. A refractive index of the low-refractive-index intercalation layer is less than a refractive index of the first inorganic barrier layer. In a direction perpendicular to the backplane, a transmittance of the low-refractive-index intercalation layer to the first color light is less than a transmittance of the low-refractive-index intercalation layer to the second color light.