Large-sized industrial control touch screen

Abstract

The invention discloses a large-sized industrial control touch screen. The large-sized industrial control touch screen comprises an ITO conducting film, the ITO conducting film comprises a peripheral wiring area and a middle window area, the peripheral wiring area is arranged on the periphery of the middle window area in an encircling mode, and a silver adhesive conducting main circuit in the peripheral wiring area is connected with the serial port circuit end which is connected with a communication control bus arranged on a bottom frame of the peripheral wiring area. The area where the silver adhesive conducting main circuit is connected with the serial port circuit end is an FPC hot-press area, the position, towards the upper portion of the middle window area, of the FPC hot-press area is a hot-press sinking area, a thermal-insulated cutting groove is formed between the FPC hot-press area and the hot-press sinking area, and the thermal-insulated cutting groove is used for thermal insulation and separation of the FPC hot-press area and the hot-press sinking area. According to the large-sized industrial control touch screen, the thermal-insulated cutting groove is formed between the FPC hot-press area and the hot-press sinking area and running through the ITO conducting film from the upper surface to the lower surface, so that thermal insulation and separation are conducted between the FPC hot-press area and the hot-press sinking area, and the problem that the touch screen is mistakenly triggered is solved.

Description

technical field [0001] The invention relates to a touch screen, in particular to a large-size industrial control touch screen. Background technique [0002] Due to the high requirements on anti-electromagnetic interference, large-size industrial touch screens generally adopt resistive touch design, which requires long service life and can work in harsh environments such as high temperature and high humidity. After being used for a period of time in a harsh environment, false touches will occur: when a certain position of the touch screen is pressed, the touch action corresponding to the position should appear, but there is no touch action at this position, and it is near the FPC connection. A. Area A (the action area, which is also the effective work area on the touch screen) has touch actions first. Further observation of defective products with false triggering phenomenon found that: the ITO conductive film near the A.A area near the FPC connection has obvious collapse ph...

AI Technical Summary

Problems solved by technology

[0004] In view of this, it is necessary to provide a thermal insulation separation between the FPC hot-pressed area and the hot-pressed slump area, so as to avoid heat conduction to the hot-pressed slump area when the serial port line end is hot-pressed. Large-size industrial control touch screen that solves the problem of false triggering of the touch screen

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