A method for manufacturing a screen printing plate of a liquid crystal display sealing frame

Abstract

The invention discloses a manufacturing method of a screen printed plate of an edge sealing frame of a liquid-crystal display, comprising the following steps: designing the patterns of the whole screen printed plate as rectangular patterns which are matched with a glass substrate to be processed; arranging a rectangular layout area for multiple patterns of the edge sealing frame on the middle parts of the rectangular patterns in a row and column form; and respectively arranging U-shaped auxiliary lines of which the opening face outwards on the two ends of the patterns of the edge sealing frame in each row and each column, wherein the U-shaped auxiliary lines are located between the outer edge of the rectangular layout area and the outer edges of the patterns of the whole screen printed plate, the whole width of each U-shaped auxiliary line is the same as the widths of the patterns of the edge sealing frames in corresponding rows or corresponding columns, and the widths of the lines of the U-shaped auxiliary line is the same as the widths of the lines of the patterns of the edge sealing frame. According to the method, the U-shaped auxiliary lines are arranged at the four sides of the layout area, the U-shaped auxiliary lines are similar to the local shapes of the patterns of the edge sealing frame, and the density of the U-shaped auxiliary lines is the same, so that the influence of the thickness uniformity of the boxes caused by edge effect is maximally eliminated, the rainbow problem caused by the influence is solved, and the quality of the product is improved.

Description

technical field [0001] The invention relates to a method for manufacturing a screen printing plate pattern used when printing an edge sealing rubber frame of a liquid crystal box by using screen printing technology, and belongs to the technical field of optical elements. Background technique [0002] The edge-sealing rubber frame of the liquid crystal display is printed by screen printing, and the quality of the edge-sealing plate directly affects the uniformity of the box thickness. figure 1 It is a traditional frame pattern. Because the auxiliary lines around it are straight lines, it is quite different from the pattern in the middle typesetting area. After the edge seal frame is printed on the glass substrate to be processed, it is easy to produce edge effects, which makes the substrate Different parts of the display are inconsistently stressed, which in turn leads to uneven thickness of the box, so the display often has a serious rainbow phenomenon, which greatly reduces...

AI Technical Summary

Problems solved by technology

figure 1 It is a traditional frame pattern. Because the auxiliary lines around it are straight lines, it is quite different from the pattern in the middle typesetting area. After the edge seal frame is printed on the glass substrate to be processed, it is easy to produce edge effects, which makes the substrate Different parts of the box are subjected to inconsistent forces, which leads to uneven thickness of the box, so the display often has a serious rainbow phenomenon, which greatly reduces the quality of the product

[0003] In addition, many liquid crystal display edge sealing frames are generally printed on a glass substrate. Since there is no positioning reference object on the traditional sealing frame pattern, electrodes are often cut by mistake during the division process of each liquid crystal cell. , which reduces the yield of the product and increases the manufacturing cost of the product

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