Manufacturing process for touch screen

Abstract

The invention discloses a manufacturing process for a touch screen. Multiple X electrodes and multiple Y electrodes are etched on an ITO film; the X electrodes and the Y electrodes are insulated mutually; the X electrodes are kept continuous in an X-axis direction; and the regions, crossed with the X electrodes, of the Y electrodes are disconnected. Multiple insulation bridges are printed on the ITO film; the insulation bridges are in one-to-one correspondence with the disconnected regions of the Y electrodes; and the insulation bridges are located in the disconnected regions of the Y electrodes and connected with the Y electrodes on two sides of each disconnected region. Multiple molybdenum aluminum molybdenum jumper wires are arranged on the ITO film through spraying and etching processes; and the molybdenum aluminum molybdenum jumper wires are located on the insulation bridges and connect the Y electrodes on the two sides of the corresponding disconnected region. The insulation bridges are arranged on the ITO film through a printing process, so that the insulation bridges are easily controlled in size and the adhesion of the insulation bridges is improved; the molybdenum aluminum molybdenum jumper wires are arranged on the ITO film through the spraying and etching processes, so that the size of each molybdenum aluminum molybdenum jumper wire can be reduced to a size invisible for the naked eyes; and therefore, a good display effect of the touch screen is achieved.

Description

technical field [0001] The invention belongs to the field of touch screens, and in particular relates to a manufacturing process of the touch screen. Background technique [0002] The capacitive touch screen works by using the induced current of the human body. When a finger touches a certain point on the screen, the touch IC controller of the touch screen needs to obtain the current information of the point in the X-axis direction and the Y-direction to accurately calculate The location of the touch point. Commonly used capacitive touch screens generally use two-layer ITO electrodes, which are used as electrodes in the X-axis direction and electrodes in the Y-axis direction. The two layers of ITO electrodes are respectively deposited on two substrates, and then the two substrates are The materials are bonded with optical glue, and then the upper substrate is bonded with the glass cover plate with optical glue, so that the ITO electrodes in the X-axis direction and the Y-ax...

AI Technical Summary

Problems solved by technology

Due to the use of two layers of ITO conductive material and two layers of optical glue to make the touch screen, the process is cumbersome and the thickness of the touch screen is high; the wire width of the conductive jumper is large, and the jumper will inevitably be displayed in the display area, affecting the display effect of the touch screen

[0003] If the X electrode and the Y electrode are arranged on a single-layer conductive film, and the molybdenum-aluminum-molybdenum layer is used as a jumper to connect the disconnected electrodes, there will be the following problems: when the jumper is wide, the jumper is visible and affects the use of the touch screen. visual effect; when the jumper is narrow, the poor adhesion of the jumper will affect the touch sensitivity and service life of the touch screen

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