Organic light-emitting device, display device and lighting device

• Main Authors: NIU JINGHUA, ZHANG SHAOLI, HUA WANMING, LIN YAFEI, WANG JIANYUN
• Format: Patent
• Language: Chinese; English
• Published: 06.09.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

The invention provides an organic light-emitting device, a display device and a lighting device, the organic light-emitting device comprises a first electrode, a second electrode and an organic layer located between the first electrode and the second electrode, the organic layer comprises a light-emitting layer, the light-emitting layer comprises a first substance, a second substance and a third substance, the first substance is a substance with a TTA effect, the second substance is a substance with a TADF effect, and the third substance is a fluorescent luminescent material with a multiple resonance effect. According to the organic light-emitting device, the balance between the efficiency and the service life can be obtained, so that the purpose of obtaining relatively high efficiency and relatively long service life is achieved. 本发明提供一种有机电致发光器件及显示装置和照明装置，所述有机电致发光器件包括第一电极和第二电极，以及位于第一电极和第二电极之间有机层，所述有机层包括发光层，所述发光层包括第一物质、第二物质和第三物质，第一物质为具有TTA效应的物质，第二物质为具有TADF效应的物质，第三物质为具有多重共振效应的荧光发光材料。本发明的有机电致发光器件能够获得效率和寿命的平衡，以达