Plurality of stacked organic light emitting layers in a light emitting diode display

US10756140B2 · kind B2 · utility

Assignees

• BOE Technology Group Co., Ltd. · CN
• BEIJING BOE DISPLAY TECHNOLOGY CO., LTD. · CN

Inventors

• Zhaokun Yang · Beijing, CN
• Xiang Feng · Beijing, CN
• Ruizhi Yang · Beijing, CN
• Lianjie Qu · Beijing, CN
• Sha Liu · Nanhu, CN

Key dates

• Filing date: Apr 12, 2017
• Grant date: Aug 25, 2020
• Expiry date: Apr 14, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K59/35

Abstract

The present application discloses a stacked organic light emitting apparatus including a base substrate; and at least two organic light emitting diodes. The at least two organic light emitting diodes include a first organic light emitting diode and a second organic light emitting diode. The first organic light emitting diode includes a first electrode layer on the base substrate; a first light emitting layer of a first color on a side of the first electrode layer distal to the base substrate; and a second electrode layer on a side of the first light emitting layer distal to the first electrode layer. The second organic light emitting diode includes a third electrode layer on a side of the second electrode layer distal to the first light emitting layer; a second light emitting layer of a second color on a side of the third electrode layer distal to the second electrode layer; and a fourth electrode layer on a side of the second light emitting layer distal to the third electrode layer.