Projected capacitive touch screen panel with single-layer indium tin compound electrode

Abstract

The invention discloses a projected capacitive touch screen panel with a single-layer indium tin compound electrode, comprising a first protective layer, an indium tin compound electrode layer and a second protective layer, wherein the indium tin compound electrode layer consists of a plurality of basic units; each basic unit comprises an interdigital type induction region and two driving electrode wiring channels; the interdigital type induction region comprises an induction electrode and a driving electrode which are arranged in an interdigital way. Compared with the prior art, the projected capacitive touch screen panel with the single-layer indium tin compound electrode has the indium tin compound electrode layer, the induction electrode and the driving electrode of the indium tin compound electrode layer are located on the same ITO (Indium Tin Oxide) layer, thus the process complexity is lowered; and as the induction electrode and the driving electrode are not overlapped on the same layer, the bridging process in the traditional touch screen panel is not needed, the manufacturing cost is saved, and the problem of the raising reject ratio of the touch screen panel caused by breakage of a metal connection bridge is avoided. Meanwhile the invention discloses a projected capacitive touch screen.

Description

technical field [0001] The present invention relates to the technical field of touch sensing devices, and more particularly relates to a projected capacitive touch screen panel with a single-layer indium tin compound electrode. Background technique [0002] In recent years, with the rapid development of projected capacitive touch screen technology, more and more products have begun to use the touch system to complete the direct operation of the target object, thereby replacing the traditional mouse, keyboard and other input devices, thereby saving space. Makes it more convenient to carry. At present, projected capacitive touch screen technology is widely used in handheld devices such as mobile phones and tablet computers. [0003] In the existing projected capacitive touch screen panels, there are two main types of ITO patterns on the electrode layer that are common on the market: figure 1 The rhombus shown and the figure 2 The flat cutout figure shown. Please refer to ...

AI Technical Summary

Problems solved by technology

[0007] (1) The cost of the touch panel is high: the touch panel realized by double-layer ITO needs three layers of glass and two layers of ITO electrodes. Compared with the realization of single-layer ITO, the material cost is higher

Due to the large number of layers of the panel, the manufacturing process steps are cumbersome and the process is complicated, which increases the manufacturing cost;

[0008] (2) The increase in the thickness of the touch panel is not conducive to the realization of thinner and lighter electronic products

[0010] (1) Electroplated metal and insulating materials will reduce the transparency of the touch screen, which is not suitable for large-area use;

[0011] (2) The manufacturing process is cumbersome, the process is complicated, and the manufacturing cost increases;

[0012] (3) The poor fracture of the metal connection bridge will reduce the yield of the panel and increase the cost

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