Array substrate, manufacturing method thereof, display panel and display device

Abstract

The invention discloses an array substrate, a manufacturing method thereof, a display panel and a display device. The array substrate comprises: a base substrate, a pixel defining layer on the base substrate, the pixel defining layer has a plurality of opening regions and surrounding each The peripheral area of ​​the opening area; also includes: the first electrode layer located on the side of the pixel defining layer away from the base substrate; sheet, and a black matrix surrounding each color filter; the roughness of the first electrode layer in the peripheral area is greater than the roughness of the first electrode layer in other areas. By making the roughness of the first electrode layer in each peripheral area larger than the roughness of the first electrode layer in other areas, the reflection direction of the original light can be changed, so that the reflected light corresponding to the sub-pixels of different colors can be Uniform light mixing to alleviate the phenomenon of color separation in the display panel.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an array substrate, a manufacturing method thereof, a display panel and a display device. Background technique [0002] With the development of display technology, there is an increasing demand for thinner and more flexible display panels, which can be met by reducing the thickness of the module. [0003] In related technologies, the thickness of the circular polarizer in the array substrate accounts for a large proportion of the thickness of the entire array substrate. To solve this problem, the color filter is integrated on the packaging layer of the light emitting device to replace the circular polarizer, so that The thickness of the module is greatly reduced. However, for the structure of the above-mentioned array substrate, in the off-screen state, when external light is irradiated on the display panel, since the cathode layer in each sub-pixel has a fixed reflection direc...

AI Technical Summary

Problems solved by technology

However, for the structure of the above-mentioned array substrate, in the off-screen state, when external light is irradiated on the display panel, since the cathode layer in each sub-pixel has a fixed reflection direction for the light irradiated thereon, and the sub-pixels at different positions The light reflected by the pixels is in a separated state, that is, the color separation of the reflected light occurs, which affects the user's experience of the absolute black screen

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