Capacitive touch screen and single layer electrode array

Abstract

The invention relates to a capacitance touch screen and a single-layer electrode array. The single-layer electrode array comprises multiple unit capacitors which are sequentially arranged. Each unit capacitor comprises one or more inner electrodes on a plane and one or more outer electrodes corresponding to one or more inner electrodes. The inner electrodes are located in wave-shaped or zigzag grooves formed by the outer electrodes. The invention further relates to the capacitance touch screen comprising the single-layer electrode array. The capacitance touch screen comprises a substrate and an electrode array arranged on the substrate. The inner electrodes are connected through inner wires located on one sides of the inner electrodes in series. The outer electrodes are connected through outer wires located on the other sides of the outer electrodes in parallel. The inner wires and the outer wires are connected with corresponding control ports of a circuit board respectively. By means of the capacitance touch screen and the single-layer electrode array, equipment cost is low and the touch performance is high.

Description

Technical field [0001] The invention belongs to the field of electronic technology, and specifically relates to a single-layer electrode array. The invention also relates to a capacitive touch screen composed of a single-layer electrode array. Background technique [0002] Multi-touch technology is radiating from smart phones to the entire consumer electronics industry, including low-end mobile phones, game consoles, media players, navigators, e-readers, tablet computers, etc. [0003] The capacitive touch screen works by using the current induction of the human body. The capacitive touch screen is usually a four-layer composite glass screen. The inner surface and the interlayer of the glass screen are each coated with a transparent conductive film (ITO). The outermost layer is a thin layer of silica glass protective layer. The inner and outer layers of ITO are respectively Etch into strips along two perpendicular axes to form a grid (sensing capacitor). When a finger touches th...

AI Technical Summary

Problems solved by technology

[0005] The preparation process using two layers of ITO film obviously increases the complexity of the preparation process and increases the process cost, and makes the pass rate decrease

[0006] Therefore, it is currently popular to use a single-layer ITO film, but it is necessary to bridge between the electrodes during the preparation process. The bridge method will easily cause fracture problems due to the large difference between the thickness of the insulating layer and the thickness of the ITO or metal film.

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