A kind of preparation method of oled panel, oled panel and oled device

Abstract

The present application provides a method for preparing an OLED panel, an OLED panel and an OLED device. The OLED panel includes a light-emitting area and a non-light-emitting area, the light-emitting area includes a plurality of pixel units, and the pixel units near the edge of the light-emitting area include: a substrate, and a The pixel defining layer and the organic light-emitting layer on the side of the substrate; the first electrode layer arranged on the side away from the substrate of the pixel defining layer and the organic light-emitting layer; the first encapsulation layer arranged on the side of the first electrode layer away from the substrate; arranged on the A first barrier wall on the side of the encapsulation layer away from the substrate, the first barrier wall is used to scatter the light emitted from the organic light-emitting layer and incident on the first barrier wall, the orthographic projection of the first barrier wall on the substrate is located in the pixel defining layer In the range of the orthographic projection on the substrate. By setting the first barrier wall in the pixel unit close to the edge of the light-emitting area to scatter light from peripheral pixels, light leakage at the edge of the light-emitting area is reduced, the brightness of the edge of the OLED panel is improved, and edge jaggedness of the OLED panel is avoided.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for preparing an OLED panel, an OLED panel and an OLED device. Background technique [0002] Commercial OLED devices often require high brightness, high uniformity, and high reliability. For this reason, most OLED panels are pixelated to reduce the yield loss caused by particles in the manufacturing process. At the same time, based on cost considerations, the pixel size is generally not designed to be too small, and the problem of jaggedness is prone to appear on the edge of the panel, such as figure 1 As shown, it affects the appearance of the panel. [0003] Aiming at the problem of jagged edges, the current technical idea is mainly from the perspective of blocking the light from the edge of the pixel. For example, a decorative film is made on the cover plate. The decorative film can block the light from a specific pixel to block the jagged edges and beautify the app...

AI Technical Summary

Problems solved by technology

However, this solution is to make a decorative film on the cover plate, which requires high alignment accuracy between the cover plate and the lower light-emitting area, and the decorative film and the panel are produced separately, so the process integration is not high.

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