Light emitting diode with a patterned scattering layer and fabrication method thereof, display substrate and display panel

US11315982B2 · kind B2 · utility

Assignee

• BOE Technology Group Co., Ltd. · CN

Inventors

• Qingchao Zhou · Beijing, CN
• Shengji Yang · Beijing, CN
• Xiaochuan Chen · Beijing, CN
• Qing Wang · Beijing, CN
• Luyang Zhou · Beijing, CN

Key dates

• Filing date: Dec 5, 2018
• Grant date: Apr 26, 2022
• Expiry date: Apr 14, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K59/877

Abstract

A light emitting diode includes a pixel unit. The pixel unit may include a first sub-pixel configured to emit white light. The first sub-pixel may include a first microcavity adjustment layer, a scattering layer, a first transparent electrode layer, a first emitting layer, and a first semi-transparent electrode layer. The scattering layer includes a plurality of patterns formed on a surface of the scattering layer. The scattering layer may be configured to reduce color cast of the first sub-pixel to be less than about 0.025 at viewing angles in a range of about −50 degree to +50 degree.