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Mutually capacitive touch screen with electrodes arranged on double-layer conductive material thin film

A material thin film and touch screen technology, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve problems such as non-compliance with touch screens, increase the manufacturing cost of mutual capacitance touch screens, increase the thickness of touch screens, etc., to solve the problem of thickness Effects of increase, area reduction, and manufacturing cost reduction

Inactive Publication Date: 2012-12-19
FOCALTECH SYST LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method of adding the shielding electrode film 300' not only increases the manufacturing cost of the mutual capacitance touch screen, but also causes the thickness of the touch screen to increase, which is not in line with the trend of the touch screen to be thinner.

Method used

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  • Mutually capacitive touch screen with electrodes arranged on double-layer conductive material thin film
  • Mutually capacitive touch screen with electrodes arranged on double-layer conductive material thin film
  • Mutually capacitive touch screen with electrodes arranged on double-layer conductive material thin film

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Embodiment Construction

[0032] Further details will be given below in conjunction with the embodiments shown in the accompanying drawings.

[0033] The present invention proposes a mutual capacitance touch screen in which electrodes are arranged on a double-layer conductive material film, such as Figure 1 to Figure 4 As shown, it includes an upper electrode film 100 and a lower electrode film 200, and the two electrode films 100, 200 include respective electrode surfaces 110, 210 made of transparent conductive materials and insulating surfaces 120 made of transparent insulating materials. , 220; the insulating surfaces 120, 220 of the two electrode films 100, 200 are attached together. The electrode surface 210 of the lower electrode film 200 is separately provided with lower electrode plates 211, and shielding electrode plates 212 are arranged in the gaps between the lower electrode plates 212, so that the lower electrode plates 211 and the shielding electrode plates 212 cover the entire lower laye...

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Abstract

A mutual capacitance touch screen with electrodes arranged on dual conductive material films, which comprises an upper electrode film and a lower electrode film, and the two electrode films respectively comprise an electrode plane made of transparent conductive materials and an insulated plane made of transparent insulating materials. The insulated planes of the two electrode films are fused together. Lower electrode plates are arranged on the electrode plane of the lower electrode film separately, and shielding electrode plates are arranged in the clearance between the lower electrode plates. Therefore, the lower electrode plates and the shielding electrode plates are distributed to the whole electrode plane of the lower electrode film. The touch screen of the present invention can isolate interference from the display screen in the conditions that the thickness is not increased and the shielding electrode film is not required to be arranged individually. Therefore, the manufacturing cost of the touch screen is reduced.

Description

technical field [0001] The invention relates to a data input device for converting action information into required electric signals, in particular to a capacitive touch screen, especially a touch screen with electrodes arranged on a thin film. Background technique [0002] The prior art mutual-capacitance touch screen includes drive electrodes electrically connected to the excitation signal module of the touch screen peripherals and sensing electrodes electrically connected to the sensing signal detection processing module of the touch screen peripherals. A mutual capacitance is formed between them. When a touch action occurs on the surface of the mutual capacitance touch screen, the mutual capacitance value in the area centered on the touch point will change, so as to convert the touch action information into an electrical signal. The coordinate data of the center position of the touch action can be obtained by processing the capacitance value change area data, and then t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044
CPCG06F2203/04103G06F3/044G06F3/0446G06F3/0445
Inventor 莫良华张靖恺彭玲
Owner FOCALTECH SYST LTD
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