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Single-layer mutual capacitance touch screen, touch screen device, and equipment

A technology of touch screen and mutual capacitance, which is applied in the direction of electrical digital data processing, instrumentation, calculation, etc., and can solve problems such as low reliability, decreased precision, and too many leads

Active Publication Date: 2021-01-01
FOCALTECH SYST LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide a single-layer mutual capacitance touch screen, aiming to solve the problems of the current single-layer mutual capacitance touch screen with too many lead wires in the electrode structure resulting in decreased accuracy and low reliability.

Method used

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  • Single-layer mutual capacitance touch screen, touch screen device, and equipment
  • Single-layer mutual capacitance touch screen, touch screen device, and equipment
  • Single-layer mutual capacitance touch screen, touch screen device, and equipment

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Embodiment Construction

[0072] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0073] In the embodiment of the present invention, the driving electrodes or / and receiving electrodes are grouped, and each group shares the same lead and is connected to the same binding pad (PAD), thereby reducing the number of leads and the number of binding PADs, thereby improving the single-layer mutual capacitance touch screen. The bonding yield, linearity, precision and reliability are improved, and in addition, the area and cost of the flexible circuit board (FPC) connected with the bonding PAD are also reduced.

[0074] In addition, the "second electrodes arranged in mirror image symmetry"...

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Abstract

The disclosure relates to a single layer mutual capacitance touchscreen, a single layer mutual capacitance touchscreen apparatus, and a touch device. The touchscreen comprises a plurality of bonding pads connected to a touch detection circuit, and a plurality of sensing electrode units arranged in parallel. Each of the sensing electrode units comprises a plurality of first electrodes, a first electrode set, and a second electrode set. Each of the first and second electrode sets comprise a plurality of second electrodes respectively. The first electrode and the second electrodes are configured to form a plurality of mutual capacitors. The first electrode and the second electrodes are connected to the bonding pads respectively via a plurality of first and second lead wires. The first electrode set corresponds to a first electrode. The second electrode set corresponds to another first electrode. The second electrodes in the first and second electrode sets are arranged in mirror symmetrical way.

Description

technical field [0001] The invention relates to the field of touch technology, in particular to a single-layer mutual capacitance touch screen, a touch screen device, and equipment. Background technique [0002] At present, in a mutual capacitance touch screen composed of a single layer of electrode patterns, each electrode pattern is connected to a bonding pad (PAD) through a separate lead, so that the mutual capacitance touch screen not only needs more bonding pads , and more lead wires are required, and the more lead wires occupy more effective touch areas of the mutual capacitance touch screen, which in turn leads to a decrease in the linearity and touch sensing accuracy of the mutual capacitance touch screen. Contents of the invention [0003] The purpose of the embodiments of the present invention is to provide a single-layer mutual capacitance touch screen, aiming at solving the problems of the current single-layer mutual capacitance touch screen with too many lead ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044
CPCG06F3/0412G06F3/044G06F2203/04111
Inventor 侯卫京郭明孙添平陈超
Owner FOCALTECH SYST LTD
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