Touchpad manufacturing method

Abstract

The invention discloses a touchpad manufacturing method. The method comprises the following steps: providing a substrate, forming a shielding layer on the substrate, defining the substrate as a non-touch region on the shielding layer and defining an unshielded portion as a touch region; forming a touch electrode layer provided with a plurality of touch electrodes on the substrate; forming a metal line layer provided with a plurality of metal lines on the touch electrode layer; molding the touch electrode layer and the metal line layer, and developing and etching the metal wires and the touch electrodes twice by using yellow light. By adopting the method, the cost of a photo-mask can be reduced greatly, and the labor hour of an entire process can be shortened.

Description

technical field [0001] The invention relates to a touch panel, in particular to a method for manufacturing the touch panel which can save the cost of the photomask and further reduce the manufacturing cost. Background technique [0002] With the development of the industry, digital tools such as mobile phones, personal digital assistants, notebook computers and tablet computers are all moving towards more convenient, multi-functional and beautiful directions. develop. [0003] However, the display screens in mobile phones, personal digital assistants, notebook computers, and tablet computers are indispensable human-machine communication interfaces. The display screens of the above products will bring more convenience to the user's operations. For convenience, most of the display screens are liquid crystal display devices. [0004] In recent years, with the rapid development and application of information technology, wireless mobile communication and information home applia...

AI Technical Summary

Problems solved by technology

[0005] Herein, the above-mentioned touch-sensitive liquid crystal display device is referred to as a touch panel for short. The touch panel is a layered structure, which includes a glass substrate, a touch electrode layer, a shielding layer, an electrode wiring layer, an insulating layer, And protective layer and other structures, the above-mentioned layers are layered structures stacked on each other, the glass substrate has a touch area and a non-touch area, and the touch electrode layer covers the aforementioned touch electrode layer mainly by sputtering. After being attached to the touch area of ​​the glass substrate, the touch electrode is shaped by yellow light development and etching, and then a masking layer is printed on the non-touch area of ​​the substrate by printing ink, and then splashed The aforementioned electrode wiring layer is coated on the shielding layer by means of plating, and then the electrode wiring is shaped by yellow light development and etching, and the touch electrode is extended in the shielding area by printing ink. end and non-corresponding electrode traces, printing insulating ink to avoid short circuit between the touch electrode extension end and the non-corresponding electrode traces, and then coating the aforementioned glass substrate, touch electrode layer, shielding layer, electrode The protective layer is covered on the wiring layer and the insulating layer. The known touch panel manufacturing method forms the touch electrode and the electrode wiring through the process of sputtering and yellow light development and etching, which consumes the manufacturing cost of the photomask and sputtering. The time spent in plating, so the known touch panel manufacturing process requires a lot of cost and manufacturing time

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