WO2012053749A3 - 멀티 터치 패널용 정전용량 감지회로 - Google Patents
멀티 터치 패널용 정전용량 감지회로 Download PDFInfo
- Publication number
- WO2012053749A3 WO2012053749A3 PCT/KR2011/007070 KR2011007070W WO2012053749A3 WO 2012053749 A3 WO2012053749 A3 WO 2012053749A3 KR 2011007070 W KR2011007070 W KR 2011007070W WO 2012053749 A3 WO2012053749 A3 WO 2012053749A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- axis electrode
- touch panel
- circuit unit
- capacitance sensing
- sensing circuit
- Prior art date
Links
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
- G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
-
- 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
- G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
-
- 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
- G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
-
- 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
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
- G06F3/04182—Filtering of noise external to the device and not generated by digitiser components
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04104—Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electronic Switches (AREA)
- Position Input By Displaying (AREA)
Abstract
본 발명은 멀티 터치 패널용 정전용량 감지회로에 관한 것으로, x축 전극과 y축 전극으로 구성되는 터치패널과, 상기 x축 전극으로 송신신호를 시분할적으로 일정한 주기를 갖는 송신신호를 인가하는 송신회로부와, 사용자의 인체 접촉이 발생하면 상기 x축 전극과 y축 전극 사이에 발생되는 정전용량 성분의 차이를 y축 전극으로부터 검출하기 위한 수신회로부로 구성되는 멀티 터치 패널용 감지회로에 있어서, 상기 수신회로부는, 전류미러(Current Mirror)기반의 전하 적분회로를 구성하고, 상기 송신회로부에서 인가되는 사각파 송신신호의 상승 주기와 하강 주기를 각각 적분하여 상기 터치패널의 x축 전극과 y축 전극 사이에 발생되는 정전용량 성분의 차이를 검출하여 터치 여부를 검출하는 것을 특징으로 한다. 이와 같이 구성되는 본 발명은 적분 후 전압값을 정밀하게 유지할 수 있고, 노이즈에 강하며, 제조의 용이성과 저전력 소비특성을 가지는 장점이 있다.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100101544A KR101292733B1 (ko) | 2010-10-18 | 2010-10-18 | 멀티 터치 패널용 정전용량 감지회로 |
KR10-2010-0101544 | 2010-10-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2012053749A2 WO2012053749A2 (ko) | 2012-04-26 |
WO2012053749A3 true WO2012053749A3 (ko) | 2012-06-14 |
Family
ID=45933732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2011/007070 WO2012053749A2 (ko) | 2010-10-18 | 2011-09-27 | 멀티 터치 패널용 정전용량 감지회로 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20120092297A1 (ko) |
KR (1) | KR101292733B1 (ko) |
WO (1) | WO2012053749A2 (ko) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8411062B1 (en) | 2012-03-14 | 2013-04-02 | Cypress Semiconductor Corporation | Adaptive drive system |
US20130300690A1 (en) * | 2012-04-25 | 2013-11-14 | Silicon Works Co., Ltd. | Control circuit of touch screen and noise removing method |
KR101314580B1 (ko) | 2012-05-09 | 2013-10-07 | 주식회사 실리콘웍스 | 터치신호 처리회로, 터치신호 처리시스템 및 터치신호 처리방법 |
US9306560B2 (en) * | 2012-05-14 | 2016-04-05 | Atmel Corporation | Self-capacitance detection using trans-conductance reference |
KR101350673B1 (ko) * | 2012-05-30 | 2014-01-13 | 삼성전기주식회사 | 정전용량 감지 장치, 정전용량 감지 방법, 및 터치스크린 장치 |
CN102799325B (zh) * | 2012-06-21 | 2016-03-30 | 敦泰科技有限公司 | 一种自电容触摸屏检测方法、装置和系统 |
KR101444524B1 (ko) | 2012-07-09 | 2014-09-24 | 삼성전기주식회사 | 정전용량 감지 장치, 정전용량 감지 방법 및 터치스크린 장치 |
KR101902929B1 (ko) | 2012-07-25 | 2018-10-01 | 삼성전자주식회사 | 터치 패널, 터치 스크린 장치 및 이의 구동 방법 |
US20140267143A1 (en) * | 2013-03-15 | 2014-09-18 | Synaptics Incorporated | System and method for a transcapacitive proximity sensing device |
US8928359B2 (en) * | 2013-05-08 | 2015-01-06 | Synaptics Incorporated | Charge distribution |
TWI516998B (zh) * | 2013-07-26 | 2016-01-11 | 奕力科技股份有限公司 | 雜訊補償的觸控面板及其觸控裝置 |
KR20150140047A (ko) | 2014-06-05 | 2015-12-15 | 삼성전기주식회사 | 적분 회로, 접촉 감지 장치 및 터치스크린 장치 |
TWI573077B (zh) * | 2015-03-27 | 2017-03-01 | 凌通科技股份有限公司 | 電子印刷品的自動頁面檢測方法以及使用其之電子印刷品 |
WO2017041249A1 (zh) * | 2015-09-09 | 2017-03-16 | 华为技术有限公司 | 一种提高触摸屏容错性的方法及触屏终端 |
JP6615683B2 (ja) * | 2016-04-14 | 2019-12-04 | ローム株式会社 | 容量測定回路、それを用いた入力装置、電子機器 |
CN108732609B (zh) * | 2017-04-24 | 2022-01-25 | 睿生光电股份有限公司 | 感测装置 |
JP2021505988A (ja) * | 2017-12-04 | 2021-02-18 | タクチュアル ラブズ シーオー. | アクティブスタイラス装置および方法 |
US10503319B2 (en) * | 2017-12-27 | 2019-12-10 | Novatek Microelectronics Corp. | Signal processing circuit for processing sensing signal from touch panel |
KR20200080830A (ko) * | 2018-12-27 | 2020-07-07 | 주식회사 실리콘웍스 | 터치센싱장치 및 이를 포함하는 디스플레이 장치 |
TWI737216B (zh) * | 2020-03-11 | 2021-08-21 | 大陸商北京集創北方科技股份有限公司 | 自電容檢測電路以及具有該電容檢測電路的資訊處理裝置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100274772B1 (ko) * | 1994-09-02 | 2000-12-15 | 제임스 엘 라우 | 물체 위치 검출기 |
KR100433362B1 (ko) * | 2002-07-11 | 2004-06-07 | 에이디반도체(주) | 임피던스 비교 집적회로 |
KR20080078783A (ko) * | 2007-02-24 | 2008-08-28 | 세이코 인스트루 가부시키가이샤 | 전류 미러 회로 |
KR20090055532A (ko) * | 2009-04-20 | 2009-06-02 | 주식회사 포인칩스 | 터치센서의 정전용량 측정회로 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6930530B1 (en) * | 2004-02-02 | 2005-08-16 | Taiwan Semiconductor Manufacturing Co., Ltd. | High-speed receiver for high I/O voltage and low core voltage |
-
2010
- 2010-10-18 KR KR1020100101544A patent/KR101292733B1/ko not_active IP Right Cessation
-
2011
- 2011-09-27 WO PCT/KR2011/007070 patent/WO2012053749A2/ko active Application Filing
- 2011-10-18 US US13/275,567 patent/US20120092297A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100274772B1 (ko) * | 1994-09-02 | 2000-12-15 | 제임스 엘 라우 | 물체 위치 검출기 |
KR100433362B1 (ko) * | 2002-07-11 | 2004-06-07 | 에이디반도체(주) | 임피던스 비교 집적회로 |
KR20080078783A (ko) * | 2007-02-24 | 2008-08-28 | 세이코 인스트루 가부시키가이샤 | 전류 미러 회로 |
KR20090055532A (ko) * | 2009-04-20 | 2009-06-02 | 주식회사 포인칩스 | 터치센서의 정전용량 측정회로 |
Also Published As
Publication number | Publication date |
---|---|
KR101292733B1 (ko) | 2013-08-05 |
WO2012053749A2 (ko) | 2012-04-26 |
KR20120040037A (ko) | 2012-04-26 |
US20120092297A1 (en) | 2012-04-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2012053749A3 (ko) | 멀티 터치 패널용 정전용량 감지회로 | |
WO2011084919A3 (en) | Capacitance measurement circuit with dynamic feedback | |
WO2011130755A3 (en) | Pressure dependent capacitive sensing circuit switch construction | |
WO2010110589A3 (ko) | 배터리 전압의 영향을 받지 않는 절연저항 측정회로 | |
WO2011063136A3 (en) | Occupant detection and classification system | |
EP2511800A3 (en) | Position pointer | |
WO2013048195A3 (ko) | 드라이빙 백 현상을 이용한 터치 검출수단, 검출방법 및 터치스크린패널과, 그러한 터치스크린패널을 내장한 표시장치 | |
EP3257449A3 (en) | Control systems for surgical instruments | |
WO2013135946A3 (en) | Master-slave interface | |
WO2014094016A3 (de) | Erfassung eines led-moduls | |
WO2013067550A8 (en) | Capacitive sensing enabled switch mode power supply and data transfer | |
WO2011150886A3 (zh) | 手持式终端设备用户界面自动切换方法及手持式终端设备 | |
WO2013019008A3 (ko) | 안전성이 향상된 전지모듈 | |
WO2005081213A3 (en) | Display activated by the presence of a user | |
GB2488623B (en) | A sensor | |
WO2013130396A3 (en) | Electronic device with shared near field communications and sensor structures | |
WO2012048168A3 (en) | Analyte monitoring devices and methods | |
WO2010117885A3 (en) | Integrated touch sensitive display gate driver | |
WO2011022152A3 (en) | Tactile user interface for an electronic device | |
WO2013165925A3 (en) | Capacitance touch near field-far field switching | |
WO2011069925A3 (en) | Multifunctional touch and/or proximity sensor | |
WO2009038035A1 (ja) | 二次電池の状態検出装置 | |
EP3567562A3 (en) | Theft detection and prevention in a power generation system | |
WO2012015838A3 (en) | Low power detection of wireless power devices | |
WO2012030183A3 (ko) | 레벨시프트를 이용한 정전식 터치 검출 장치, 검출 방법 및 이를 내장한 표시 장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11834549 Country of ref document: EP Kind code of ref document: A2 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 120813) |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 11834549 Country of ref document: EP Kind code of ref document: A2 |