Capacitive touch screen and manufacturing method thereof

Abstract

The invention provides a capacitive touch screen which comprises a transparent base board, transparent electrode layers formed on the transparent base board and electrode routing layers. The transparent electrode layers are longitudinally arranged on the transparent base board, and the transparent electrode layers and the electrode routing layers are connected with a walking line to the upper side or / and the lower side corresponding to the upper side of the transparent base board. The invention further provides a manufacture method of the capacitive touch screen. According to the capacitive touch screen and the manufacture method of the capacity of the touch screen, the electrode walking line layers of the upper side or / and the lower side can be respectively connected with a main board of the capacitive touch screen through a flexible printed circuit (FPC). Thus, the electrode walking line layers are in short distance with the upper side or / and the lower side of the transparent base board so that the width of the electrode walking line layers can be set to be wide, and a long-distance narrow line is prevented from being wide. The electrode routing layers can be made by using the same materials with the transparent electrode layer, manufacture cost is reduced, meanwhile, the transparent electrode layers and the electrode routing layers can be synchronously manufactured and finished, and manufacture technology is simplified.

Description

technical field [0001] The invention belongs to the display field, and in particular relates to a capacitive touch screen and a manufacturing method thereof. Background technique [0002] Please refer to Figure 1-2 As shown, in the prior art, the structure of a capacitive touch screen generally includes a transparent substrate 11 , and a transparent electrode layer 12 and an electrode wiring layer 13 formed on the transparent substrate 11 . Wherein, the transparent electrode layer 12 is laterally formed on the transparent substrate 11, and can be formed by etching a transparent electrode material such as ITO; Form or vapor-deposit MoAlMo film, Cu film, Ag film to form, and finally gather all the electrode wiring layers 13 to the FPC (Flexible Printed Circuit, referred to as flexible printed circuit board) binding area 14 on the lower side of the transparent substrate 11, and then pass The FPC is connected with the control circuit of the capacitive touch screen. [0003] A...

AI Technical Summary

Problems solved by technology

However, the current technology is difficult to achieve a narrow border of less than 1 mm

[0004] Further, the conductive layer is first deposited by the coating method, and then the pattern of the electrode wiring layer 13 is etched out using a high-precision photoresist process, but the coating and photolithography equipment are expensive, and the initial investment cost is high. With the increasing market competition Intensive, the cost pressure is gradually highlighted; at the same time, the structure of the existing narrow-frame capacitive touch screen needs to form a transparent electrode layer 12 and an electrode wiring layer 13 respectively, and the manufacturing process is complicated

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