Display substrate having spacer for spacing apart carrier injection layer portions of two adjacent sub-pixels, and manufacturing method thereof

US11539017B2 · kind B2 · utility

Assignee

• BOE Technology Group Co., Ltd. · CN

Inventors

• Shengji Yang · Beijing, CN
• Hui Wang · Beijing, CN
• Xiaochuan Chen · Beijing, CN
• Kuanta HUANG · Beijing, CN
• Yanming Wang · Beachwood, US
• Pengcheng Lu · Beijing, CN
• Yage Song · Beijing, CN
• Guangtong Liu · Xingtai City, CN
• Jiantong Li · Beijing, CN

Key dates

• Filing date: Aug 23, 2019
• Grant date: Dec 27, 2022
• Expiry date: Jan 2, 2040

Classification

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

Abstract

A display substrate and a manufacturing method thereof are provided. The display substrate includes a base substrate, as well as a first conductive layer, an organic functional layer and a second conductive layer which are on the base substrate sequentially, and the organic functional layer includes a carrier injection layer including a first carrier injection layer portion and a second carrier injection layer portion which are in a first sub-pixel area and a second sub-pixel area respectively; the display substrate further includes a spacer which separates the first carrier injection layer portion and the second carrier injection layer portion, and the carrier injection layer further includes a third carrier injection layer portion which is separated from the first carrier injection layer portion and the second carrier injection layer portion respectively.