Display panel exposure alignment method and display panel

Abstract

The invention provides a display panel exposure alignment method and a display panel. In the display panel exposure alignment method, a plurality of alignment mark groups are provided on the display panel; each alignment mark group includes a first alignment mark and a second alignment mark that are respectively arranged on both sides of the display panel and are asymmetrically arranged. mark, a plurality of alignment mark groups corresponding to a plurality of alignment mark groups are provided in the exposure machine; the display panel is placed in the exposure machine, and the plurality of alignment mark groups are aligned with the plurality of alignment mark groups When the alignment is completed, the display panel is exposed, and when the alignment fails, the display panel is intercepted to avoid exposing the turned display panel, which has a good fool-proof effect.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to an exposure alignment method for a display panel and a display panel. Background technique [0002] Thin Film Transistor (TFT) is the main driving element in current Liquid Crystal Display (LCD) and Active Matrix Organic Light-Emitting Diode (AMOLED). It is related to the display performance of the flat panel display device. [0003] Most of the liquid crystal displays currently on the market are backlight liquid crystal displays, which include a liquid crystal display panel and a backlight module. The working principle of the liquid crystal display panel is to pour liquid crystal molecules between the thin film transistor array substrate (ThinFilm Transistor Array Substrate, TFT Array Substrate) and the color filter (ColorFilter, CF) substrate, and apply pixel voltage on the two substrates respectively. and the common voltage, through the electric field formed between...

AI Technical Summary

Problems solved by technology

At present, the panel is usually manufactured with 14 layers of film technology, but the alignment mark of the panel is usually set on the alignment layer. The alignment layer of the panel is mainly the light-shielding (LS) layer, the active layer and the second metal layer. , limited by the size of the alignment mark on the panel, the panel needs to be aligned multiple times, so there will be multiple sets of alignment marks symmetrically set on both sides of the panel. With the increase of new products on the production line, the number of production line experiments increases , Many experiments involve turning experiments. If the turned panel before entering the exposure machine is not turned back, due to the symmetrical setting of the alignment marks, the alignment will still be successful, resulting in direct reverse exposure, resulting in abnormal graphics superposition

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