Preparing method of large-size capacitive touch screen glass and glass

Abstract

The invention discloses a preparing method of large-size capacitive touch screen glass. The preparing method includes the following steps that S1, a gel sheet is attached between a first glass sheet and a second glass sheet, wherein the size of the first glass sheet is smaller than that of the second glass sheet; S2, the attached first glass sheet and second glass sheet are placed into a silica gel bag; S3, a silica gel film is laid in a step formed by the edge of the first glass sheet and the second glass sheet; S4, the silica gel bag is sealed; S5, the silica gel bag is vacuumized and heated and kept under set air pressure and temperature conditions for preset time; S6, the silica gel bag is pressurized and cooled; S7, the glass is taken out of the silica gel bag. Mass production can be achieved by the preparing method, the glass edge step is high in uniformity, and the yield of the finished product is high.

Description

technical field [0001] The invention relates to touch screen glass, in particular to a method for preparing large-size capacitive touch screen glass and the glass. Background technique [0002] In the prior art, the bonding technology of capacitive touch screen with G+G structure has been successfully applied to the bonding process of small-sized glass, but the bonding process of large-sized glass is not yet mature enough. The following problems exist in the lamination process and application of large-size glass: First, the production capacity is low, and the existing large-size lamination process takes a long time to process, and can only process one piece at a time, and cannot process multiple pieces at one time, such as According to the calculation of 32 inches, the average time for each piece is about 5-8 minutes, and the average hourly production capacity is only about 7-12 pieces, which is low. Secondly, the step height consistency is poor. The height of the step in t...

AI Technical Summary

Problems solved by technology

[0002] In the existing technology, the bonding technology of capacitive touch screen with G+G structure has been successfully applied to the bonding process of small-sized glass, but the bonding process of large-sized glass is not mature enough

The following problems exist in the lamination process and application of large-size glass: First, the production capacity is low, and the existing large-size lamination process takes a long time to process, and can only process one piece at a time, and cannot process multiple pieces at one time, such as According to the calculation of 32 inches, the average time for each piece is about 5-8 minutes, and the average hourly production capacity is only about 7-12 pieces, which is low. Secondly, the step height consistency is poor. The height of the step in the middle of the side is high, the difference between the highest and the lowest is about 0.2mm, and the height tolerance of the step is about ±0.1mm; at the same time, the yield rate is low, and the yield rate of the existing process is low, and it is easy to produce air bubbles and debris The current yield rate is basically around 50-60%; once again, the equipment investment is large, and the investment cost of the existing processing equipment is high, with a minimum of more than RMB 800,000; in addition, the product overflows seriously, and the existing processed lamination products It is easy to produce glue overflow, which cannot be cleaned up thoroughly in the later stage, and there are serious quality hidden dangers leading to defective

In summary, the existing processing technology cannot meet the bonding process of large-size touch screen glass

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