DE69123435T2 - Sensor-Matrizes - Google Patents

Sensor-Matrizes

Info

Publication number
DE69123435T2
DE69123435T2 DE69123435T DE69123435T DE69123435T2 DE 69123435 T2 DE69123435 T2 DE 69123435T2 DE 69123435 T DE69123435 T DE 69123435T DE 69123435 T DE69123435 T DE 69123435T DE 69123435 T2 DE69123435 T2 DE 69123435T2
Authority
DE
Germany
Prior art keywords
sensor matrices
matrices
sensor
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 - Lifetime
Application number
DE69123435T
Other languages
English (en)
Other versions
DE69123435D1 (de
Inventor
Michael Hack
Alan G Lewis
Richard H Bruce
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xerox Corp
Original Assignee
Xerox Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xerox Corp filed Critical Xerox Corp
Application granted granted Critical
Publication of DE69123435D1 publication Critical patent/DE69123435D1/de
Publication of DE69123435T2 publication Critical patent/DE69123435T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
DE69123435T 1990-12-13 1991-12-12 Sensor-Matrizes Expired - Lifetime DE69123435T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/626,795 US5204661A (en) 1990-12-13 1990-12-13 Input/output pixel circuit and array of such circuits

Publications (2)

Publication Number Publication Date
DE69123435D1 DE69123435D1 (de) 1997-01-16
DE69123435T2 true DE69123435T2 (de) 1997-06-12

Family

ID=24511882

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69123435T Expired - Lifetime DE69123435T2 (de) 1990-12-13 1991-12-12 Sensor-Matrizes

Country Status (4)

Country Link
US (1) US5204661A (de)
EP (1) EP0490683B1 (de)
JP (1) JP3251964B2 (de)
DE (1) DE69123435T2 (de)

Families Citing this family (135)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9027481D0 (en) * 1990-12-19 1991-02-06 Philips Electronic Associated Matrix display device with write-in facility
GB9108226D0 (en) * 1991-04-17 1991-06-05 Philips Electronic Associated Optical touch input device
BE1006985A3 (nl) * 1993-04-08 1995-02-07 Imec Inter Uni Micro Electr Lichtgevoelige interface-inrichting voor datacommunicatie.
JP3368627B2 (ja) * 1993-08-31 2003-01-20 双葉電子工業株式会社 ディスプレイ一体型タブレット
GB2286100A (en) * 1994-01-19 1995-08-02 Ibm Touch-sensitive display apparatus
GB2314664A (en) 1996-06-27 1998-01-07 Sharp Kk Address generator,display and spatial light modulator
JP4013293B2 (ja) 1997-09-01 2007-11-28 セイコーエプソン株式会社 表示装置兼用型イメージセンサ装置及びアクティブマトリクス型表示装置
US6747638B2 (en) * 2000-01-31 2004-06-08 Semiconductor Energy Laboratory Co., Ltd. Adhesion type area sensor and display device having adhesion type area sensor
JP4485087B2 (ja) * 2001-03-01 2010-06-16 株式会社半導体エネルギー研究所 半導体装置の動作方法
JP3959454B2 (ja) * 2001-10-22 2007-08-15 シャープ株式会社 入力装置および入出力装置
GB2381644A (en) * 2001-10-31 2003-05-07 Cambridge Display Tech Ltd Display drivers
US7009663B2 (en) * 2003-12-17 2006-03-07 Planar Systems, Inc. Integrated optical light sensitive active matrix liquid crystal display
US7053967B2 (en) * 2002-05-23 2006-05-30 Planar Systems, Inc. Light sensitive display
US7023503B2 (en) * 2002-02-20 2006-04-04 Planar Systems, Inc. Image sensor with photosensitive thin film transistors
WO2003073159A1 (en) * 2002-02-20 2003-09-04 Planar Systems, Inc. Light sensitive display
WO2003075207A2 (en) * 2002-03-01 2003-09-12 Planar Systems, Inc. Reflection resistant touch screens
US7219241B2 (en) * 2002-11-30 2007-05-15 Intel Corporation Method for managing virtual and actual performance states of logical processors in a multithreaded processor using system management mode
US20080048995A1 (en) * 2003-02-20 2008-02-28 Planar Systems, Inc. Light sensitive display
US20080084374A1 (en) * 2003-02-20 2008-04-10 Planar Systems, Inc. Light sensitive display
TWI363206B (en) * 2003-02-28 2012-05-01 Samsung Electronics Co Ltd Liquid crystal display device
KR100954082B1 (ko) * 2003-04-08 2010-04-23 삼성전자주식회사 액정표시장치
US7053412B2 (en) * 2003-06-27 2006-05-30 The Trustees Of Princeton University And Universal Display Corporation Grey scale bistable display
CA2443206A1 (en) 2003-09-23 2005-03-23 Ignis Innovation Inc. Amoled display backplanes - pixel driver circuits, array architecture, and external compensation
US20050134749A1 (en) * 2003-12-19 2005-06-23 Adiel Abileah Reflection resistant display
US7773139B2 (en) 2004-04-16 2010-08-10 Apple Inc. Image sensor with photosensitive thin film transistors
CA2472671A1 (en) 2004-06-29 2005-12-29 Ignis Innovation Inc. Voltage-programming scheme for current-driven amoled displays
CA2490858A1 (en) 2004-12-07 2006-06-07 Ignis Innovation Inc. Driving method for compensated voltage-programming of amoled displays
US10012678B2 (en) 2004-12-15 2018-07-03 Ignis Innovation Inc. Method and system for programming, calibrating and/or compensating, and driving an LED display
US9280933B2 (en) 2004-12-15 2016-03-08 Ignis Innovation Inc. System and methods for extraction of threshold and mobility parameters in AMOLED displays
US20140111567A1 (en) 2005-04-12 2014-04-24 Ignis Innovation Inc. System and method for compensation of non-uniformities in light emitting device displays
US9171500B2 (en) 2011-05-20 2015-10-27 Ignis Innovation Inc. System and methods for extraction of parasitic parameters in AMOLED displays
EP2688058A3 (de) 2004-12-15 2014-12-10 Ignis Innovation Inc. Verfahren und System zur Programmierung, Kalibrierung und Ansteuerung einer lichtemittierenden Vorrichtungsanzeige
US9799246B2 (en) 2011-05-20 2017-10-24 Ignis Innovation Inc. System and methods for extraction of threshold and mobility parameters in AMOLED displays
US8599191B2 (en) 2011-05-20 2013-12-03 Ignis Innovation Inc. System and methods for extraction of threshold and mobility parameters in AMOLED displays
US8576217B2 (en) 2011-05-20 2013-11-05 Ignis Innovation Inc. System and methods for extraction of threshold and mobility parameters in AMOLED displays
US9275579B2 (en) 2004-12-15 2016-03-01 Ignis Innovation Inc. System and methods for extraction of threshold and mobility parameters in AMOLED displays
US10013907B2 (en) 2004-12-15 2018-07-03 Ignis Innovation Inc. Method and system for programming, calibrating and/or compensating, and driving an LED display
US20060145974A1 (en) * 2004-12-30 2006-07-06 Willis Thomas E Power management for display device
CA2496642A1 (en) 2005-02-10 2006-08-10 Ignis Innovation Inc. Fast settling time driving method for organic light-emitting diode (oled) displays based on current programming
JP4613689B2 (ja) * 2005-05-20 2011-01-19 三菱電機株式会社 光センサ内蔵表示装置
KR20080032072A (ko) * 2005-06-08 2008-04-14 이그니스 이노베이션 인크. 발광 디바이스 디스플레이 구동 방법 및 시스템
KR100552451B1 (ko) * 2005-07-27 2006-02-21 실리콘 디스플레이 (주) 문턱전압이 보상되는 요철 검출장치 및 그 방법
CA2518276A1 (en) 2005-09-13 2007-03-13 Ignis Innovation Inc. Compensation technique for luminance degradation in electro-luminance devices
JP4510738B2 (ja) * 2005-09-28 2010-07-28 株式会社 日立ディスプレイズ 表示装置
US20070109239A1 (en) * 2005-11-14 2007-05-17 Den Boer Willem Integrated light sensitive liquid crystal display
KR101246785B1 (ko) * 2005-12-28 2013-04-03 엘지디스플레이 주식회사 스캐너 일체형 액정표시장치와 이의 스캐너 모드 구동방법
US9489891B2 (en) 2006-01-09 2016-11-08 Ignis Innovation Inc. Method and system for driving an active matrix display circuit
WO2007079572A1 (en) 2006-01-09 2007-07-19 Ignis Innovation Inc. Method and system for driving an active matrix display circuit
US9269322B2 (en) 2006-01-09 2016-02-23 Ignis Innovation Inc. Method and system for driving an active matrix display circuit
TW200746022A (en) 2006-04-19 2007-12-16 Ignis Innovation Inc Stable driving scheme for active matrix displays
GB2439098A (en) * 2006-06-12 2007-12-19 Sharp Kk Image sensor and display
GB2439118A (en) 2006-06-12 2007-12-19 Sharp Kk Image sensor and display
CA2556961A1 (en) 2006-08-15 2008-02-15 Ignis Innovation Inc. Oled compensation technique based on oled capacitance
FR2912265B1 (fr) 2007-02-06 2009-04-24 Batscap Sa Batterie a modules de cellules en serie, et vehicule equipe de celle-ci
US7940252B2 (en) * 2007-10-18 2011-05-10 Himax Technologies Limited Optical sensor with photo TFT
TWI409537B (zh) * 2008-04-03 2013-09-21 Innolux Corp 液晶面板及採用該液晶面板之液晶顯示裝置
CN102057418B (zh) 2008-04-18 2014-11-12 伊格尼斯创新公司 用于发光器件显示器的系统和驱动方法
KR101415725B1 (ko) * 2008-05-21 2014-07-21 서울대학교산학협력단 표시 장치와 그 구동 방법
CA2637343A1 (en) 2008-07-29 2010-01-29 Ignis Innovation Inc. Improving the display source driver
EP2151811A3 (de) * 2008-08-08 2010-07-21 Semiconductor Energy Laboratory Co, Ltd. Anzeigevorrichtung und elektronische Vorrichtung
TWI366784B (en) * 2008-08-21 2012-06-21 Au Optronics Corp Matrix sensing apparatus
US8115846B2 (en) * 2008-10-15 2012-02-14 Au Optronics Corporation Active pixel sensor circuit
KR100989959B1 (ko) * 2008-10-27 2010-10-26 하이디스 테크놀로지 주식회사 터치스크린 기능을 갖는 일체형 액정표시장치 및 이 장치에서 수행되는 외부 조도량 검출방법
US9370075B2 (en) 2008-12-09 2016-06-14 Ignis Innovation Inc. System and method for fast compensation programming of pixels in a display
US8878816B2 (en) * 2009-02-19 2014-11-04 Au Optronics Corporation Active pixel sensor and method for making same
US9384698B2 (en) 2009-11-30 2016-07-05 Ignis Innovation Inc. System and methods for aging compensation in AMOLED displays
CA2688870A1 (en) 2009-11-30 2011-05-30 Ignis Innovation Inc. Methode and techniques for improving display uniformity
CA2669367A1 (en) 2009-06-16 2010-12-16 Ignis Innovation Inc Compensation technique for color shift in displays
US9311859B2 (en) 2009-11-30 2016-04-12 Ignis Innovation Inc. Resetting cycle for aging compensation in AMOLED displays
US10319307B2 (en) 2009-06-16 2019-06-11 Ignis Innovation Inc. Display system with compensation techniques and/or shared level resources
US8274489B2 (en) * 2009-09-17 2012-09-25 Himax Technologies Limited Readout apparatus and multi-channel readout apparatus for touch panel
CN102597930B (zh) * 2009-11-06 2016-06-29 株式会社半导体能源研究所 触摸屏及触摸屏的驱动方法
US8633873B2 (en) 2009-11-12 2014-01-21 Ignis Innovation Inc. Stable fast programming scheme for displays
US10867536B2 (en) 2013-04-22 2020-12-15 Ignis Innovation Inc. Inspection system for OLED display panels
US10996258B2 (en) 2009-11-30 2021-05-04 Ignis Innovation Inc. Defect detection and correction of pixel circuits for AMOLED displays
US8803417B2 (en) 2009-12-01 2014-08-12 Ignis Innovation Inc. High resolution pixel architecture
CA2687631A1 (en) 2009-12-06 2011-06-06 Ignis Innovation Inc Low power driving scheme for display applications
JP2011141418A (ja) * 2010-01-07 2011-07-21 Sony Corp 表示装置、光検出方法、電子機器
US20140313111A1 (en) 2010-02-04 2014-10-23 Ignis Innovation Inc. System and methods for extracting correlation curves for an organic light emitting device
US10176736B2 (en) 2010-02-04 2019-01-08 Ignis Innovation Inc. System and methods for extracting correlation curves for an organic light emitting device
US9881532B2 (en) 2010-02-04 2018-01-30 Ignis Innovation Inc. System and method for extracting correlation curves for an organic light emitting device
CA2692097A1 (en) 2010-02-04 2011-08-04 Ignis Innovation Inc. Extracting correlation curves for light emitting device
US10089921B2 (en) 2010-02-04 2018-10-02 Ignis Innovation Inc. System and methods for extracting correlation curves for an organic light emitting device
US10163401B2 (en) 2010-02-04 2018-12-25 Ignis Innovation Inc. System and methods for extracting correlation curves for an organic light emitting device
CA2696778A1 (en) 2010-03-17 2011-09-17 Ignis Innovation Inc. Lifetime, uniformity, parameter extraction methods
US8907991B2 (en) 2010-12-02 2014-12-09 Ignis Innovation Inc. System and methods for thermal compensation in AMOLED displays
US9310923B2 (en) 2010-12-03 2016-04-12 Apple Inc. Input device for touch sensitive devices
US9886899B2 (en) 2011-05-17 2018-02-06 Ignis Innovation Inc. Pixel Circuits for AMOLED displays
US20140368491A1 (en) 2013-03-08 2014-12-18 Ignis Innovation Inc. Pixel circuits for amoled displays
US9351368B2 (en) 2013-03-08 2016-05-24 Ignis Innovation Inc. Pixel circuits for AMOLED displays
US9530349B2 (en) 2011-05-20 2016-12-27 Ignis Innovations Inc. Charged-based compensation and parameter extraction in AMOLED displays
US9466240B2 (en) 2011-05-26 2016-10-11 Ignis Innovation Inc. Adaptive feedback system for compensating for aging pixel areas with enhanced estimation speed
US9773439B2 (en) 2011-05-27 2017-09-26 Ignis Innovation Inc. Systems and methods for aging compensation in AMOLED displays
EP2945147B1 (de) 2011-05-28 2018-08-01 Ignis Innovation Inc. Verfahren zur schnellkompensationsprogrammierung von pixeln in einer anzeige
US8638320B2 (en) 2011-06-22 2014-01-28 Apple Inc. Stylus orientation detection
US9329703B2 (en) 2011-06-22 2016-05-03 Apple Inc. Intelligent stylus
US8928635B2 (en) 2011-06-22 2015-01-06 Apple Inc. Active stylus
TWI467134B (zh) * 2011-08-22 2015-01-01 Ind Tech Res Inst 感測裝置與感測方法
US10089924B2 (en) 2011-11-29 2018-10-02 Ignis Innovation Inc. Structural and low-frequency non-uniformity compensation
US9324268B2 (en) 2013-03-15 2016-04-26 Ignis Innovation Inc. Amoled displays with multiple readout circuits
US8937632B2 (en) 2012-02-03 2015-01-20 Ignis Innovation Inc. Driving system for active-matrix displays
US9747834B2 (en) 2012-05-11 2017-08-29 Ignis Innovation Inc. Pixel circuits including feedback capacitors and reset capacitors, and display systems therefore
US8922544B2 (en) 2012-05-23 2014-12-30 Ignis Innovation Inc. Display systems with compensation for line propagation delay
US9652090B2 (en) 2012-07-27 2017-05-16 Apple Inc. Device for digital communication through capacitive coupling
US9176604B2 (en) 2012-07-27 2015-11-03 Apple Inc. Stylus device
US9557845B2 (en) 2012-07-27 2017-01-31 Apple Inc. Input device for and method of communication with capacitive devices through frequency variation
US9786223B2 (en) 2012-12-11 2017-10-10 Ignis Innovation Inc. Pixel circuits for AMOLED displays
US9336717B2 (en) 2012-12-11 2016-05-10 Ignis Innovation Inc. Pixel circuits for AMOLED displays
US9830857B2 (en) 2013-01-14 2017-11-28 Ignis Innovation Inc. Cleaning common unwanted signals from pixel measurements in emissive displays
US9171504B2 (en) 2013-01-14 2015-10-27 Ignis Innovation Inc. Driving scheme for emissive displays providing compensation for driving transistor variations
CA2894717A1 (en) 2015-06-19 2016-12-19 Ignis Innovation Inc. Optoelectronic device characterization in array with shared sense line
US9721505B2 (en) 2013-03-08 2017-08-01 Ignis Innovation Inc. Pixel circuits for AMOLED displays
US10048775B2 (en) 2013-03-14 2018-08-14 Apple Inc. Stylus detection and demodulation
EP2779147B1 (de) 2013-03-14 2016-03-02 Ignis Innovation Inc. Neuinterpolation mit Kantendetektion zur Extraktion eines Alterungsmusters für AMOLED-Anzeigen
US10067580B2 (en) 2013-07-31 2018-09-04 Apple Inc. Active stylus for use with touch controller architecture
DE112014003719T5 (de) 2013-08-12 2016-05-19 Ignis Innovation Inc. Kompensationsgenauigkeit
US9761170B2 (en) 2013-12-06 2017-09-12 Ignis Innovation Inc. Correction for localized phenomena in an image array
US9741282B2 (en) 2013-12-06 2017-08-22 Ignis Innovation Inc. OLED display system and method
US9502653B2 (en) 2013-12-25 2016-11-22 Ignis Innovation Inc. Electrode contacts
DE102015206281A1 (de) 2014-04-08 2015-10-08 Ignis Innovation Inc. Anzeigesystem mit gemeinsam genutzten Niveauressourcen für tragbare Vorrichtungen
JP2015225150A (ja) * 2014-05-27 2015-12-14 ソニー株式会社 表示装置及び電子機器
US10067618B2 (en) 2014-12-04 2018-09-04 Apple Inc. Coarse scan and targeted active mode scan for touch
CA2873476A1 (en) 2014-12-08 2016-06-08 Ignis Innovation Inc. Smart-pixel display architecture
CA2879462A1 (en) 2015-01-23 2016-07-23 Ignis Innovation Inc. Compensation for color variation in emissive devices
CA2886862A1 (en) 2015-04-01 2016-10-01 Ignis Innovation Inc. Adjusting display brightness for avoiding overheating and/or accelerated aging
CA2889870A1 (en) 2015-05-04 2016-11-04 Ignis Innovation Inc. Optical feedback system
CA2892714A1 (en) 2015-05-27 2016-11-27 Ignis Innovation Inc Memory bandwidth reduction in compensation system
CA2898282A1 (en) 2015-07-24 2017-01-24 Ignis Innovation Inc. Hybrid calibration of current sources for current biased voltage progra mmed (cbvp) displays
US10373554B2 (en) 2015-07-24 2019-08-06 Ignis Innovation Inc. Pixels and reference circuits and timing techniques
US10657895B2 (en) 2015-07-24 2020-05-19 Ignis Innovation Inc. Pixels and reference circuits and timing techniques
CA2900170A1 (en) 2015-08-07 2017-02-07 Gholamreza Chaji Calibration of pixel based on improved reference values
CA2908285A1 (en) 2015-10-14 2017-04-14 Ignis Innovation Inc. Driver with multiple color pixel structure
US10474277B2 (en) 2016-05-31 2019-11-12 Apple Inc. Position-based stylus communication
KR102365543B1 (ko) * 2016-06-10 2022-02-18 가부시키가이샤 한도오따이 에네루기 켄큐쇼 정보 단말
CN108536336B (zh) * 2018-04-24 2020-04-17 京东方科技集团股份有限公司 触控电路和触控驱动方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5685792A (en) * 1979-12-14 1981-07-13 Citizen Watch Co Ltd Liquid crystal display unit
FR2487566A1 (fr) * 1980-07-25 1982-01-29 Thomson Csf Matrice de detection d'un rayonnement electromagnetique et intensificateur d'images radiologiques comportant une telle matrice
JPS58221562A (ja) * 1982-06-18 1983-12-23 Fuji Xerox Co Ltd 原稿読取装置
JPS5934772A (ja) * 1982-08-20 1984-02-25 Olympus Optical Co Ltd 画像信号処理装置
JPS6086981A (ja) * 1983-10-18 1985-05-16 Toshiba Corp 固体撮像装置
US4655552A (en) * 1984-03-17 1987-04-07 Citizen Watch Co., Ltd. Flat panel display device having on-screen data input function

Also Published As

Publication number Publication date
JPH04302593A (ja) 1992-10-26
EP0490683B1 (de) 1996-12-04
EP0490683A2 (de) 1992-06-17
EP0490683A3 (en) 1993-02-10
JP3251964B2 (ja) 2002-01-28
US5204661A (en) 1993-04-20
DE69123435D1 (de) 1997-01-16

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