OLED display panel, manufacturing method thereof and display device

• Main Authors: YU CHI, SHI BO, ZHOU ZHENLI
• Format: Patent
• Language: Chinese; English
• Published: 10.08.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

The invention relates to the technical field of display, and discloses an OLED display panel, a manufacturing method of the OLED display panel and a display device. The OLED display panel comprises a substrate, a cover plate arranged opposite to the substrate and frame sealing glue located between the substrate and the cover plate and used for bonding the substrate and the cover plate. A device layer is arranged in the side, facing the cover plate, of the substrate; a filling layer corresponding to an effective display area of the OLED display panel is arranged between the device layer and the cover plate; a gap between the device layer and the cover plate is filled with the filling layer, and the absolute value of the difference value between the refractive index of the filling layer and the refractive index of the cover plate is smaller than the absolute value between the refractive index of the cover plate and the refractive index of nitrogen. According to the OLED display panel, the problem of rainbow lin