JP2013041576A - タッチパネルの制御システム及びその制御方法 - Google Patents
タッチパネルの制御システム及びその制御方法 Download PDFInfo
- Publication number
- JP2013041576A JP2013041576A JP2012160312A JP2012160312A JP2013041576A JP 2013041576 A JP2013041576 A JP 2013041576A JP 2012160312 A JP2012160312 A JP 2012160312A JP 2012160312 A JP2012160312 A JP 2012160312A JP 2013041576 A JP2013041576 A JP 2013041576A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- touch panel
- voltage
- frequency
- control system
- 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.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Position Input By Displaying (AREA)
Abstract
【解決手段】タッチパネルの制御システムは、電圧制御発振器及び信号処理器を含む。電圧制御発振器は、タッチパネルの検出信号に対応する直流電圧信号を正弦波信号に変換するために用いられる。信号処理器は、正弦波信号の周波数をカウントする。タッチパネルの制御システムの電圧制御発振器は、直流電圧信号を正弦波信号に変換する。電圧制御発振器から出力される正弦波信号の周波数の範囲内での変化が広いので、当該信号はノイズによって簡単に影響を受けず、即ち制御システムのSNRは比較的高い。
【選択図】図1
Description
110 パルス信号駆動器
120 信号検出器
124 積分器
126 サンプリング・ホールディング回路
129 増幅器
130 第1のマルチプレクサ
135 第2のマルチプレクサ
140 電圧制御発振器
150 信号処理器
152 低ノイズ増幅器
154 周波数カウンタ
160 制御ユニット
200 タッチパネル
Claims (10)
- タッチパネルの検出信号に基づく直流電圧信号を、当該直流電圧信号の電圧に応じた周波数信号に変換する電圧制御発振器と、
前記周波数信号の周波数をカウントする信号処理器と、
を備えるタッチパネルの制御システム。 - 前記周波数信号は正弦波信号である、請求項1に記載のタッチパネルの制御システム。
- 信号検出器を更に備え、
前記信号検出器は、前記タッチパネルに電気的に接続されており、前記タッチパネルの検出信号を検出する、請求項1又は2に記載のタッチパネルの制御システム。 - 前記信号検出器は、
前記検出信号を前記直流電圧信号に変換する積分器と、
前記直流電圧信号の電圧レベルを抽出して維持するためのサンプリング・ホールディング回路と、
前記直流電圧信号の電圧レベルを増幅する増幅器と、
を備える、請求項3に記載のタッチパネルの制御システム。 - 前記信号処理器は、
周波数カウンタと、
前記周波数信号の振幅を増幅するための低ノイズ増幅器と、
を備える、請求項1乃至4のいずれか1項に記載のタッチパネルの制御システム。 - 前記タッチパネルに伝送するためのパルス駆動信号を生成し、前記パルス駆動信号に基づいて前記検出信号を誘起するために、前記タッチパネルが接続されるパルス信号駆動器と、
前記パルス駆動信号及び前記検出信号を取得するためのマルチプレクサと、
前記パルス信号駆動器の動作を制御し、前記周波数に基づいて接触動作を決定する制御ユニットと、
を備える、請求項1乃至5のいずれか1項に記載のタッチパネルの制御システム。 - タッチパネルの検出信号に基づく直流電圧信号を、当該電流電圧信号の電圧に応じた周波数信号に変換し、
前記周波数信号の周波数をカウントする、タッチパネルの制御方法。 - 前記検出信号を前記直流電圧信号に変換し、
前記直流電圧信号の電圧レベルを抽出して維持し、
前記直流電圧信号の電圧レベルを増幅する、請求項7に記載のタッチパネルの制御方法。 - 前記周波数信号の周波数に基づいて接触動作を決定する、請求項7又は8に記載のタッチパネルの制御方法。
- 前記周波数信号の周波数をカウントするために前記周波数信号の振幅を増幅する、請求項7乃至9のいずれか1項に記載のタッチパネルの制御方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110237989.4 | 2011-08-18 | ||
CN2011102379894A CN102955589A (zh) | 2011-08-18 | 2011-08-18 | 触控面板的控制系统及控制方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013041576A true JP2013041576A (ja) | 2013-02-28 |
JP5502945B2 JP5502945B2 (ja) | 2014-05-28 |
Family
ID=46317253
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012160312A Active JP5502945B2 (ja) | 2011-08-18 | 2012-07-19 | タッチパネルの制御システム及びその制御方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20130044067A1 (ja) |
EP (1) | EP2560078A3 (ja) |
JP (1) | JP5502945B2 (ja) |
KR (1) | KR101421464B1 (ja) |
CN (1) | CN102955589A (ja) |
TW (2) | TWI497362B (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102955589A (zh) * | 2011-08-18 | 2013-03-06 | 宸鸿光电科技股份有限公司 | 触控面板的控制系统及控制方法 |
CN104461093B (zh) * | 2013-09-17 | 2018-01-16 | 宸鸿科技(厦门)有限公司 | 控制系统及其触控装置 |
KR102302139B1 (ko) | 2015-01-27 | 2021-09-14 | 삼성디스플레이 주식회사 | 터치 표시 장치 및 그 구동 방법 |
CN105467259B (zh) * | 2015-11-16 | 2018-06-29 | 上海天马微电子有限公司 | 检测电容感测线路的检测电路、电容式触摸屏和检测方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08204566A (ja) * | 1995-01-27 | 1996-08-09 | Nec Corp | A/d変換器 |
JP2010003285A (ja) * | 2008-05-21 | 2010-01-07 | Mitsubishi Electric Corp | タッチパネル、およびそれを備えた表示装置 |
JP2011028735A (ja) * | 2009-06-25 | 2011-02-10 | Semiconductor Energy Lab Co Ltd | タッチパネル及びその駆動方法 |
JP2011175452A (ja) * | 2010-02-24 | 2011-09-08 | Renesas Sp Drivers Inc | タッチセンサ装置 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4550221A (en) * | 1983-10-07 | 1985-10-29 | Scott Mabusth | Touch sensitive control device |
US5914710A (en) * | 1997-08-20 | 1999-06-22 | Ace Cad Enterprise Co., Ltd. | Cordless pointing instrument for graphics tablet |
US7069357B2 (en) * | 2003-01-29 | 2006-06-27 | Numark Industries, Llc | Touch sensor system |
US20060097992A1 (en) * | 2004-10-25 | 2006-05-11 | Motorola, Inc. | Apparatus and method of determining a user selection in a user interface |
JP4346572B2 (ja) * | 2005-03-23 | 2009-10-21 | 富士通株式会社 | タッチパネル装置におけるノイズ除去のための制御方法および装置並びにタッチパネル装置 |
US20090009483A1 (en) * | 2007-06-13 | 2009-01-08 | Apple Inc. | Single-chip touch controller with integrated drive system |
WO2009063817A1 (ja) * | 2007-11-12 | 2009-05-22 | Mitsubishi Electric Corporation | タッチパネル及びそれを備えた表示装置 |
US8659556B2 (en) * | 2008-09-10 | 2014-02-25 | Apple Inc. | Advanced receive channel architecture |
CN101685364B (zh) * | 2008-09-27 | 2012-03-07 | 盛群半导体股份有限公司 | 触摸面板的传感装置及方法 |
US8482545B2 (en) * | 2008-10-02 | 2013-07-09 | Wacom Co., Ltd. | Combination touch and transducer input system and method |
JP2010108501A (ja) * | 2008-10-30 | 2010-05-13 | Samsung Electronics Co Ltd | センシング感度を向上させたタッチスクリーンコントローラ、タッチスクリーンコントローラを備えるディスプレイ駆動回路、ディスプレイ装置及びシステム |
KR101573698B1 (ko) * | 2009-03-18 | 2015-12-03 | 삼성전자주식회사 | 터치 데이터 프로세싱 회로, 이를 포함하는 디스플레이 구동 회로 및 디스플레이 장치 |
CN101419522B (zh) * | 2008-11-28 | 2010-12-15 | 深圳市汇顶科技有限公司 | 电容式触摸检测装置及其检测方法 |
EP2204726A1 (en) * | 2008-12-30 | 2010-07-07 | STMicroelectronics R&D Oy | Touch screen controller |
BRPI1012635A2 (pt) * | 2009-03-27 | 2016-06-21 | Academia Sinica | "métodos e composições para imunização contra o vírus" |
CN101853099B (zh) * | 2009-03-30 | 2012-03-28 | 盛群半导体股份有限公司 | 触控系统补偿方法 |
TWI443554B (zh) * | 2009-08-05 | 2014-07-01 | Silicon Integrated Sys Corp | 觸碰感測裝置及其方法 |
TWI409683B (zh) * | 2010-02-04 | 2013-09-21 | Chunghwa Picture Tubes Ltd | 觸控面板偵測電路 |
CN102314389B (zh) * | 2010-07-08 | 2015-04-15 | 飞思卡尔半导体公司 | 用于触摸传感器接口故障检测的方法和系统 |
US8847896B2 (en) * | 2010-09-09 | 2014-09-30 | Conexant Systems, Inc. | Adaptive high dynamic range surface capacitive touchscreen controller |
DE112012001000T5 (de) * | 2011-02-25 | 2013-11-21 | Maxim Integrated Products, Inc. | Kapazitive Berührungserkennungs-Architektur |
US9030421B2 (en) * | 2011-04-01 | 2015-05-12 | Qualcomm Incorporated | Touchscreen controller with adjustable parameters |
US9268441B2 (en) * | 2011-04-05 | 2016-02-23 | Parade Technologies, Ltd. | Active integrator for a capacitive sense array |
CN102955589A (zh) * | 2011-08-18 | 2013-03-06 | 宸鸿光电科技股份有限公司 | 触控面板的控制系统及控制方法 |
-
2011
- 2011-08-18 CN CN2011102379894A patent/CN102955589A/zh active Pending
-
2012
- 2012-06-19 US US13/526,552 patent/US20130044067A1/en not_active Abandoned
- 2012-06-21 EP EP12172929.7A patent/EP2560078A3/en not_active Withdrawn
- 2012-07-16 KR KR1020120077311A patent/KR101421464B1/ko active IP Right Grant
- 2012-07-19 JP JP2012160312A patent/JP5502945B2/ja active Active
- 2012-08-16 TW TW101129642A patent/TWI497362B/zh active
- 2012-08-16 TW TW101215745U patent/TWM448022U/zh unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08204566A (ja) * | 1995-01-27 | 1996-08-09 | Nec Corp | A/d変換器 |
JP2010003285A (ja) * | 2008-05-21 | 2010-01-07 | Mitsubishi Electric Corp | タッチパネル、およびそれを備えた表示装置 |
JP2011028735A (ja) * | 2009-06-25 | 2011-02-10 | Semiconductor Energy Lab Co Ltd | タッチパネル及びその駆動方法 |
JP2011175452A (ja) * | 2010-02-24 | 2011-09-08 | Renesas Sp Drivers Inc | タッチセンサ装置 |
Also Published As
Publication number | Publication date |
---|---|
KR101421464B1 (ko) | 2014-07-22 |
TWI497362B (zh) | 2015-08-21 |
KR20130020554A (ko) | 2013-02-27 |
US20130044067A1 (en) | 2013-02-21 |
CN102955589A (zh) | 2013-03-06 |
TW201310303A (zh) | 2013-03-01 |
EP2560078A2 (en) | 2013-02-20 |
EP2560078A3 (en) | 2015-11-18 |
TWM448022U (zh) | 2013-03-01 |
JP5502945B2 (ja) | 2014-05-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9857932B2 (en) | Capacitive touch sense architecture having a correlator for demodulating a measured capacitance from an excitation signal | |
US8575988B2 (en) | Mixed-signal integrator architecture | |
CN101799734B (zh) | 电容式触摸屏按键检测方法 | |
CN104049789B (zh) | 触敏设备及使用触摸表面电路的方法 | |
KR101292733B1 (ko) | 멀티 터치 패널용 정전용량 감지회로 | |
US9389740B2 (en) | Touch sensing apparatus and method capable of supporting hover sensing | |
US20130021291A1 (en) | Quadrature signal receiver using synchronized oscillator | |
KR101509857B1 (ko) | 감지 전극 어레이를 위한 제어 회로 및 제어 방법 및 이를 이용한 터치 제어 감지 시스템 | |
CN102681743B (zh) | 微量阻抗变化检测装置 | |
JP5502945B2 (ja) | タッチパネルの制御システム及びその制御方法 | |
Hu et al. | 12.2 3D gesture-sensing system for interactive displays based on extended-range capacitive sensing | |
JP2007334690A (ja) | 静電容量センサ回路 | |
US10831304B2 (en) | Control chip for capacitive touch device with high sensitivity and low power consumption | |
US20140375593A1 (en) | Capacitive Touch Sensor Control Unit With Automatic Gain Control | |
US10423277B2 (en) | Interference reduction circuit for touch system | |
Song et al. | A 50.7-dB-DR finger-resistance extracting multi-touch sensor IC for soft classification of fingers contacted on 6.7-in capacitive touch screen panel | |
TWI474245B (zh) | 觸控裝置、感測電路以及其感測方法 | |
JP5764855B2 (ja) | 物理量検出回路、及び物理量検出方法 | |
CN202205179U (zh) | 触控面板的控制系统 | |
Lee et al. | A Compact Low-Power Shunt Proximity Touch Sensor and Readout for Haptic Function | |
Lee et al. | Advancements in Capacitive Touch System and Stylus Technologies | |
TWM493098U (zh) | 觸控面板的控制系統及裝置 | |
KR20170027407A (ko) | 터치 센서 제어 장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20130820 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20130821 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20131025 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20131030 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20131209 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20140304 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20140313 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5502945 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |