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CN1324449C - Power saving structure and power saving method of capacitive touch panel - Google Patents

Power saving structure and power saving method of capacitive touch panel Download PDF

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Publication number
CN1324449C
CN1324449C CNB2004100741113A CN200410074111A CN1324449C CN 1324449 C CN1324449 C CN 1324449C CN B2004100741113 A CNB2004100741113 A CN B2004100741113A CN 200410074111 A CN200410074111 A CN 200410074111A CN 1324449 C CN1324449 C CN 1324449C
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CN
China
Prior art keywords
capacitive touch
touch panel
conductor
circuit board
soft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB2004100741113A
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Chinese (zh)
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CN1744023A (en
Inventor
邱延诚
简永烈
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Elan Microelectronics Corp
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Elan Microelectronics Corp
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Filing date
Publication date
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Priority to CNB2004100741113A priority Critical patent/CN1324449C/en
Publication of CN1744023A publication Critical patent/CN1744023A/en
Application granted granted Critical
Publication of CN1324449C publication Critical patent/CN1324449C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A power-saving structure and method for capacitive touch control panel includes processing conductor on flexible panel to make it have sandwich structure of insulator and conductor interlaced to each other as a flexible capacitive touch control panel, having a grounding layer at bottom, having a layer of conductor on a circuit board corresponding to grounding layer, an elastic insulator filled between flexible capacitive touch control panel and circuit board, and a control circuit having an input/output port connected with conductor on circuit board for waking up touch control panel when grounding layer touches conductor.

Description

The electricity-saving structure of capacitive touch control plate and electricity saving method
Technical field
The present invention is relevant for a kind of Trackpad, particularly about a kind of electricity-saving structure and electricity saving method of capacitive touch control plate.
Background technology
Trackpad is widely used on the electronic product.Trackpad provides a kind of simple, light and cheap input media.Known Trackpad has three kinds of resistance-type, electromagnetic type and condenser types, the principle of work of capacitive touch control plate is to utilize user's finger or moment that conductor touches Trackpad to produce a capacity effect, thereby can judge the position that finger or conductor touch by the variation of capacitance.No matter yet capacitive touch control plate all need continue to detect its capacitance change when using or not using, therefore the consumption for power can't reduce always.
Therefore, a kind of structure of new capacitive touch control plate and utilize this structure to reduce the mechanism of consumed power is to be the institute Ji.
Summary of the invention
Fundamental purpose of the present invention is to propose a kind of electricity-saving structure and electricity saving method of capacitive touch control plate.
The electricity-saving structure of capacitive touch control plate comprises among the present invention:
One soft capacitive touch control plate, this soft capacitive touch control plate are by multi-layer conductive and the interlaced sandwich structure consisting of insulator, and its bottom has a ground plane;
One circuit board, its surface have one deck conductor to should ground plane;
One elastic insulator is filled between this soft capacitive touch control plate and this circuit board; And
One control circuit, this control circuit connects this conductor by an input/output end port, when not using capacitive touch control plate, this control circuit is closed, ports having changes circuit for detecting still in action, and suspension joint between soft capacitive touch control plate and the circuit board is when the soft capacitive touch control plate of finger presses, described ground plane contacts with described conductor and produces voltage signal and change input/output end port to described control circuit, wakes capacitive touch control plate up and returns back to normal manipulation mode by battery saving mode.
The electricity saving method of capacitive touch control plate is among the present invention, this Trackpad is a soft capacitive touch control plate by multi-layer conductive and the interlaced sandwich structure consisting of insulator, this soft capacitive touch control plate is installed on the circuit board, the bottom of this soft capacitive touch control plate has a ground plane, has one deck conductor on this circuit board to should ground plane, and between described circuit board and described soft capacitive touch control plate, be filled with elastic insulator, the input/output end port that the conductor of described circuit board and includes the control circuit of port variation circuit for detecting is connected, when not using capacitive touch control plate, this control circuit is closed, ports having changes circuit for detecting still in action, suspension joint between soft capacitive touch control plate and the circuit board, when the soft capacitive touch control plate of finger presses, described ground plane contacts with described conductor and produces voltage signal and change input/output end port to described control circuit, wakes capacitive touch control plate up and returns back to normal manipulation mode by battery saving mode.
Description of drawings
The structural representation of the electricity-saving structure of capacitive touch control plate among Fig. 1 the present invention.
Symbol description
10 soft capacitive touch control plate 11 insulation courses 12 conductors
13 insulation courses, 14 conductors, 15 insulation courses
16 conductors, 17 soft boards, 20 circuit boards
22 conductors, 30 elastic insulators, 40 control circuits
42 input/output end ports
Embodiment
As shown in Figure 1, the electricity-saving structure of capacitive touch control plate and method comprise a soft capacitive touch control plate 10 among the present invention, this soft capacitive touch control plate 10 is included on the soft board 17 the processing conductor makes it have the sandwich structure of insulation course 11, conductor 12, insulation course 13, conductor 14, insulation course 15 and conductor 16 interlaced compositions, wherein, conductor 12 and 14 is the inductor of soft capacitive touch control plate 14, and it comprises a netted pattern for ground plane and preferably for conductor 16.The surface of circuit board 20 has one deck conductor 22, generally speaking, conductor 22 comprises Copper Foil, elastic insulator 30 is filled between soft capacitive touch control plate 10 and the circuit board 20, and control circuit 40 has an input/output end port (I/O port) 42 and is connected with conductor 22, utilizes known port to change (port changed) mechanism and reaches the function of waking Trackpad up.When not using capacitive touch control plate, its all circuit are closed, and a ports having changes circuit for detecting still in running, so consumed power is extremely low.Under this battery saving mode, be suspension joint between soft capacitive touch control plate 10 and the circuit board 20.When desire is used capacitive touch control plate, in case the soft capacitive touch control plate 10 of finger presses, conductor 16 just contacts with conductor 22, produce voltage change signal and give the input/output end port 42 of control circuit 40, for example voltage signal becomes low level by high levle, thereby cause an arouse machine processed, impel capacitive touch control plate to return back to normal manipulation mode by battery saving mode.It is minimum to utilize this electricity-saving structure that the consumed power of capacitive touch control plate is reduced to, and the reaction time of waking up is short, need not recalibrate Trackpad.It is existing microcontroller technology commonly used that the port that uses in the control circuit 40 changes circuit for detecting, does not therefore increase cost.The preferably, control circuit 40 just is included in the microcontroller of Trackpad, and is mounted on the circuit board 20, does not therefore increase hardware cost fully.

Claims (3)

1.一种电容式触控板的省电结构，其特征在于，包括：1. A power-saving structure of a capacitive touch panel, characterized in that, comprising: 一软性电容式触控板，该软性电容式触控板由多层导体及绝缘体相互交错组成三明治结构，其底部具有一接地层；A flexible capacitive touch panel, the flexible capacitive touch panel is composed of multiple layers of conductors and insulators interlaced to form a sandwich structure, and the bottom has a grounding layer; 一电路板，其表面具有一层导体对应该接地层；A circuit board, the surface of which has a layer of conductor corresponding to the ground layer; 一弹性绝缘体，填充于该软性电容式触控板及该电路板之间；以及an elastic insulator filled between the flexible capacitive touch panel and the circuit board; and 一控制电路，该控制电路由一输入/输出端口连接该导体，当不使用电容式触控板时，该控制电路被关闭，只有端口变化侦测电路仍在动作，软性电容式触控板与电路板之间浮接，当手指按压软性电容式触控板时，所述接地层与所述导体接触产生电压信号变化给所述控制电路的输入/输出端口，唤醒电容式触控板由省电模式回复至正常操作模式。A control circuit, the control circuit is connected to the conductor by an input/output port, when the capacitive touch panel is not used, the control circuit is closed, only the port change detection circuit is still in action, the soft capacitive touch panel Floating connection with the circuit board, when the finger presses the soft capacitive touch panel, the ground layer contacts the conductor to generate a voltage signal change to the input/output port of the control circuit, and wakes up the capacitive touch panel Return to normal operation mode from power saving mode. 2.如权利要求1所述的结构，其特征在于，该接地层包括一网状图样。2. The structure of claim 1, wherein the ground layer comprises a mesh pattern. 3.一种电容式触控板的省电方法，其特征在于，该触控板为一由多层导体及绝缘体相互交错组成三明治结构的软性电容式触控板，该软性电容式触控板安装在一电路板上，该软性电容式触控板的底部具有一接地层，该电路板上具有一层导体对应该接地层，且在所述电路板与所述软性电容式触控板之间填充有弹性绝缘体，所述电路板的导体与一包括有端口变化侦测电路的控制电路的输入/输出端口连接，当不使用电容式触控板时，该控制电路被关闭，只有端口变化侦测电路仍在动作，软性电容式触控板与电路板之间浮接，当手指按压软性电容式触控板时，所述接地层与所述导体接触产生电压信号变化给所述控制电路的输入/输出端口，唤醒电容式触控板由省电模式回复至正常操作模式。3. A power-saving method for a capacitive touch panel, characterized in that the touch panel is a soft capacitive touch panel with a sandwich structure formed by interlacing multilayer conductors and insulators, and the soft capacitive touch panel The control board is installed on a circuit board, the bottom of the flexible capacitive touch panel has a ground layer, and the circuit board has a layer of conductor corresponding to the ground layer, and the circuit board and the flexible capacitive touch The touch pads are filled with elastic insulators, and the conductors of the circuit boards are connected to the input/output ports of a control circuit including a port change detection circuit, which is turned off when the capacitive touch pad is not used , only the port change detection circuit is still operating, the soft capacitive touch panel and the circuit board are floating, when the finger presses the soft capacitive touch panel, the ground layer contacts the conductor to generate a voltage signal Change to the input/output port of the control circuit to wake up the capacitive touch panel from the power saving mode to return to the normal operation mode.
CNB2004100741113A 2004-08-31 2004-08-31 Power saving structure and power saving method of capacitive touch panel Expired - Fee Related CN1324449C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2004100741113A CN1324449C (en) 2004-08-31 2004-08-31 Power saving structure and power saving method of capacitive touch panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2004100741113A CN1324449C (en) 2004-08-31 2004-08-31 Power saving structure and power saving method of capacitive touch panel

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CN1324449C true CN1324449C (en) 2007-07-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9098140B2 (en) 2013-05-02 2015-08-04 Paragon Technologies Co., Ltd. Power-saving touch pad apparatus

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US8125456B2 (en) 2007-01-03 2012-02-28 Apple Inc. Multi-touch auto scanning
US8094128B2 (en) 2007-01-03 2012-01-10 Apple Inc. Channel scan logic
JP5020165B2 (en) * 2007-10-16 2012-09-05 ソニーモバイルディスプレイ株式会社 Display device with input function and electronic device
CN101452360B (en) * 2007-11-30 2011-01-19 禾瑞亚科技股份有限公司 Sensing device for capacitive touch screen
TWI417776B (en) 2007-12-31 2013-12-01 Egalax Empia Technology Inc Device and method for improving accrucy of touch position on touch panel
US10969917B2 (en) 2008-01-30 2021-04-06 Apple Inc. Auto scanning for multiple frequency stimulation multi-touch sensor panels
CN101526871B (en) * 2008-03-04 2011-09-28 禾瑞亚科技股份有限公司 Sensing device and method for capacitive touch panel
CN101526870B (en) * 2008-03-07 2012-02-01 禾瑞亚科技股份有限公司 Sliding input device and method thereof
CN101625612B (en) * 2008-07-07 2011-05-11 禾瑞亚科技股份有限公司 Device and method for improving accuracy of touch panel
CN101825962B (en) * 2009-03-04 2012-05-23 联咏科技股份有限公司 Touch device capable of saving electric energy and related method thereof
JP5100738B2 (en) * 2009-04-22 2012-12-19 株式会社ジャパンディスプレイイースト Input device and display device including the same
US20110242043A1 (en) * 2010-04-06 2011-10-06 Mark Yarvis Device with capacitive touchscreen panel and method for power management
CN102375630B (en) * 2010-08-17 2014-03-12 东莞万士达液晶显示器有限公司 Surface capacitive touch device and control method thereof
US10133420B2 (en) 2012-06-09 2018-11-20 Visteon Global Technologies, Inc. Capacitive sensor arrangement and touch-sensitive screen having a capacitive sensor arrangement
CN103677435B (en) * 2012-09-04 2016-12-21 原相科技股份有限公司 Electrical switch and correlation surface plate module thereof and electronic installation
CN104506673B (en) * 2014-08-06 2017-10-20 深圳市财富之舟科技有限公司 A kind of production method of mobile phone and mobile phone

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
US9098140B2 (en) 2013-05-02 2015-08-04 Paragon Technologies Co., Ltd. Power-saving touch pad apparatus

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Granted publication date: 20070704

Termination date: 20110831