Array substrate master, array substrate, display panel and display device

Abstract

The invention provides an array substrate master, an array substrate, a display panel and a display device. The array substrate master comprises a substrate, alignment layers and protective layers, wherein at least one display area and non-display area are limited on the substrate, and the non-display areas are arranged the display areas in a surrounding mode; the alignment layers are arranged onone side of the substrate, and at least one display area is at least covered with the alignment layers; and the protective layers are arranged in the same layer as the alignment layers and the non-display areas are covered with the protective layers, and the substrate is completely covered with the sum of the forward projections of the protective layers and the alignment layers. According to the array substrate master, the protective layers arranged in the same layer as the alignment layers are additionally arranged in the area outside the display areas, so that debris produced by friction cloth in surrounding areas is effectively reduced in the friction process, the generation of impurities from a foreign body source is reduced, and the good product rate of a fabricated display panel is further improved.

Description

technical field [0001] The present invention relates to the field of display technology, and in particular, the present invention relates to an array substrate master, an array substrate, a display panel and a display device. Background technique [0002] In the liquid crystal display (LCD) manufacturing process, it is an indispensable process to arrange the liquid crystal molecules in a certain direction, and the Rubbing process is one of them: through rubbing cloth (Rubbing Cloth, such as nylon, fiber or cotton wool, etc.) According to a certain direction, the orientation of the alignment film is rubbed, so that the film surface condition of the alignment film changes regularly, and then the alignment film can align the liquid crystal, and finally the liquid crystal arrangement has the expected pretilt angle. [0003] However, in the process of rubbing (Rubbing), the uppermost layer of the peripheral area composed of the glass dummy area, the peripheral circuit (GOA) area ...

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Problems solved by technology

[0003] However, in the process of rubbing (Rubbing), the uppermost layer of the peripheral area composed of the glass dummy area, the peripheral circuit (GOA) area and the fan-out (FanOut) area of ​​the array substrate (TFT) is generally nitrogen. SiN x ), while SiN x It is harder than the polyimide (PI) of the alignment film in the display area, so when rubbing, refer to figure 1 , the surrounding area is more prone to friction cloth debris

Moreover, this kind of debris cannot be completely cleaned during cleaning, but may be cleaned or blown to the display (AA) area, which easily leads to abnormal looseness of the alignment film on the TFT side of the edge of the display panel (Panel) (Zara )

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