Display panel, pixel isolation wall and preparation method thereof

Abstract

The invention discloses a display panel, a pixel isolation wall and a preparation method thereof, relates to the field of flat panel display technology, and mainly aims at improving the film-forming quality of an organic functional layer between pixel isolation walls. The main technical solution of the present invention is: a pixel isolation wall, comprising: a lyophilic layer, which is arranged on an electrode substrate; a first lyophobic layer, which is arranged on a side of the lyophilic layer away from the electrode substrate, Wherein, the material of the first lyophobic layer is a magnetic lyophobic material; the isolation layer is arranged on the side of the first lyophobic layer away from the lyophilic layer. The present invention is mainly used for isolating sub-pixel units.

Description

technical field [0001] The invention relates to the field of flat panel display technology, in particular to a display panel, a pixel isolation wall and a preparation method thereof. Background technique [0002] Compared with LCD display technology, OLED display technology has the advantages of self-luminescence, fast response, wide viewing angle, high brightness, and bright colors, and is one of the important development directions of display technology. [0003] In the preparation process of OLED devices, there are mainly two methods of OLED film formation: evaporation process and solution process. Among them, the inkjet printing technology in the solution process is widely used because of its high utilization rate and large size. Specifically, inkjet printing technology mainly drops ink droplets into designated sub-pixel grooves accurately, so that it forms an organic functional layer for light emission in the sub-pixel grooves, and encloses sub-pixels. The pixel separa...

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Problems solved by technology

[0003] In the preparation process of OLED devices, there are mainly two methods of OLED film formation: evaporation process and solution process. Among them, the inkjet printing technology in the solution process is widely used because of its high utilization rate and large size. Specifically, inkjet printing technology mainly drops ink droplets into designated sub-pixel grooves accurately, so that it forms an organic functional layer for light emission in the sub-pixel grooves, and encloses sub-pixels. The pixel separation wall of the groove is mainly made of lyophilic material. During the drying process of the ink, the organic functional layer formed by the ink will climb a certain height along the side wall of the pixel separation wall, which seriously affects the film quality. Among them, the higher the climbing height, the worse the film-forming quality

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