WO2005103872A3 - Acoustic touch sensor - Google Patents

Acoustic touch sensor Download PDF

Info

Publication number
WO2005103872A3
WO2005103872A3 PCT/US2005/012891 US2005012891W WO2005103872A3 WO 2005103872 A3 WO2005103872 A3 WO 2005103872A3 US 2005012891 W US2005012891 W US 2005012891W WO 2005103872 A3 WO2005103872 A3 WO 2005103872A3
Authority
WO
WIPO (PCT)
Prior art keywords
substrate
transducer
acoustic waves
sidewall
touch sensor
Prior art date
Application number
PCT/US2005/012891
Other languages
French (fr)
Other versions
WO2005103872A2 (en
Inventor
Joel C Kent
Paulo I Gomes
Masahiro Tsumura
Original Assignee
Elo Touchsystems Inc
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 Elo Touchsystems Inc filed Critical Elo Touchsystems Inc
Priority to GB0622184A priority Critical patent/GB2428092B/en
Priority to AU2005236440A priority patent/AU2005236440A1/en
Priority to JP2007508575A priority patent/JP4989461B2/en
Publication of WO2005103872A2 publication Critical patent/WO2005103872A2/en
Publication of WO2005103872A3 publication Critical patent/WO2005103872A3/en

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
    • G06F3/043—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves
    • G06F3/0436—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves in which generating transducers and detecting transducers are attached to a single acoustic waves transmission substrate

Abstract

A touch sensor comprises a substrate capable of propagating acoustic waves. The substrate includes a first surface having a touch sensitive region. In one embodiment, the substrate includes a first sidewall intersecting the first surface at a first edge. A transmitter is provided on the first sidewall of the substrate. The transmitter generates acoustic waves that propagate directly from the first sidewall through at least a portion of the touch sensitive region. In another embodiment, a transducer is formed on the substrate. The transducer comprises a piezoelectric element which is thermally cured after being formed on the substrate. The transducer is configured for at least one of generating acoustic waves and detecting acoustic waves. Alternatively, the transducer may include a strip comprising the piezoelectric element.
PCT/US2005/012891 2004-04-14 2005-04-13 Acoustic touch sensor WO2005103872A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0622184A GB2428092B (en) 2004-04-14 2005-04-13 Acoustic touch sensor
AU2005236440A AU2005236440A1 (en) 2004-04-14 2005-04-13 Acoustic touch sensor
JP2007508575A JP4989461B2 (en) 2004-04-14 2005-04-13 Elastic wave touch screen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56245504P 2004-04-14 2004-04-14
US60/562,455 2004-04-14

Publications (2)

Publication Number Publication Date
WO2005103872A2 WO2005103872A2 (en) 2005-11-03
WO2005103872A3 true WO2005103872A3 (en) 2006-04-06

Family

ID=34966016

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/012891 WO2005103872A2 (en) 2004-04-14 2005-04-13 Acoustic touch sensor

Country Status (5)

Country Link
JP (3) JP4989461B2 (en)
CN (2) CN101387933B (en)
AU (1) AU2005236440A1 (en)
GB (3) GB2443744B (en)
WO (1) WO2005103872A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11950512B2 (en) 2020-03-23 2024-04-02 Apple Inc. Thin-film acoustic imaging system for imaging through an exterior surface of an electronic device housing

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4772460B2 (en) * 2005-11-10 2011-09-14 宸鴻光電科技股▲分▼有限公司 Contact control panel wiring structure
EP2017703A1 (en) * 2007-07-09 2009-01-21 Sensitive Object Touch control system and method for localising an excitation
US8743091B2 (en) 2008-07-31 2014-06-03 Apple Inc. Acoustic multi-touch sensor panel
CN102339175A (en) * 2010-07-15 2012-02-01 汉王科技股份有限公司 Touch sensitive locating device and method
KR101815006B1 (en) * 2013-05-13 2018-01-09 삼성전자주식회사 Apparatus and method for sensing bending and touch using optical waveguide
US20150102994A1 (en) * 2013-10-10 2015-04-16 Qualcomm Incorporated System and method for multi-touch gesture detection using ultrasound beamforming
US20150220214A1 (en) * 2014-01-31 2015-08-06 Samsung Display Co., Ltd. Multi-touch acoustic beam sensing apparatus and driving method thereof
KR20160008359A (en) * 2014-07-14 2016-01-22 주식회사 코아로직 Pressure sensor for touch panel
US9952095B1 (en) 2014-09-29 2018-04-24 Apple Inc. Methods and systems for modulation and demodulation of optical signals
EP3040815B1 (en) * 2014-12-29 2018-08-01 LG Display Co., Ltd. Display device
US11048902B2 (en) 2015-08-20 2021-06-29 Appple Inc. Acoustic imaging system architecture
US10671222B2 (en) 2015-09-30 2020-06-02 Apple Inc. Touch sensor pattern for edge input detection
US11036318B2 (en) 2015-09-30 2021-06-15 Apple Inc. Capacitive touch or proximity detection for crown
WO2018023080A2 (en) 2016-07-29 2018-02-01 Apple Inc. Methodology and application of acoustic touch detection
WO2018153484A1 (en) 2017-02-24 2018-08-30 Vestel Elektronik Sanayi Ve Ticaret A.S. Acousto-optic transducer, array and method
US11157115B2 (en) 2017-03-31 2021-10-26 Apple Inc. Composite cover material for sensitivity improvement of ultrasonic touch screens
US10606418B2 (en) 2017-03-31 2020-03-31 Apple Inc. Ultrasonic touch detection on stylus
US11334196B2 (en) 2017-05-24 2022-05-17 Apple Inc. System and method for acoustic touch and force sensing
US11144158B2 (en) 2017-05-24 2021-10-12 Apple Inc. Differential acoustic touch and force sensing
CN208722170U (en) 2017-05-24 2019-04-09 苹果公司 It touches and power sensitive device, electronic equipment and wearable audio frequency apparatus
CN109427975B (en) * 2017-08-23 2021-01-22 京东方科技集团股份有限公司 Flexible substrate, preparation method thereof, bending detection method and flexible display device
US10949030B2 (en) 2017-09-26 2021-03-16 Apple Inc. Shear-poled curved piezoelectric material
US10802651B2 (en) 2018-01-30 2020-10-13 Apple Inc. Ultrasonic touch detection through display
US11366552B2 (en) 2018-02-06 2022-06-21 Apple, Inc. Ultrasonic polarizer
WO2019235988A1 (en) * 2018-06-04 2019-12-12 Fingerprint Cards Ab Acoustic biometric imaging system with acoustic impedance matched opaque masking layer, and manufacturing method
US10725573B2 (en) 2018-08-06 2020-07-28 Apple Inc. Annular piezoelectric structure for ultrasonic touch sensing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998029853A1 (en) * 1996-12-25 1998-07-09 Elo Touchsystems, Inc. Grating transducer for acoustic touchscreen
US6087599A (en) * 1997-11-24 2000-07-11 The Whitaker Corporation Touch panels having plastic substrates
EP1260937A2 (en) * 2001-05-15 2002-11-27 Fujitsu Limited Touch panel device

Family Cites Families (10)

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EP0112889A1 (en) * 1982-07-10 1984-07-11 Syrinx Precision Instuments Limited Data input device
US4564928A (en) * 1982-09-30 1986-01-14 New York Institute Of Technology Graphical data apparatus
JPS6266689A (en) * 1985-09-19 1987-03-26 Sumitomo Bakelite Co Ltd Manufacture of composite sheet with piezoelectric or pyroelectric property
JP3882231B2 (en) * 1996-07-31 2007-02-14 住友電気工業株式会社 Manufacturing method of composite piezoelectric material
US5852433A (en) * 1996-08-09 1998-12-22 Toda; Kohji Elastic wave position-sensing device
JP3959533B2 (en) * 1997-03-03 2007-08-15 耕司 戸田 Ultrasonic touch panel
JP2001014094A (en) * 1999-06-30 2001-01-19 Touch Panel Systems Kk Acoustic contact detecter
JP2001111133A (en) * 1999-10-05 2001-04-20 Masashige Morise Method of manufacturing piezoelectric microactuator
JP2002041232A (en) * 2000-07-21 2002-02-08 Daicel Chem Ind Ltd Acoustic touch sensing device
JP4562294B2 (en) * 2001-01-26 2010-10-13 富士通株式会社 Touch panel device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998029853A1 (en) * 1996-12-25 1998-07-09 Elo Touchsystems, Inc. Grating transducer for acoustic touchscreen
US6087599A (en) * 1997-11-24 2000-07-11 The Whitaker Corporation Touch panels having plastic substrates
EP1260937A2 (en) * 2001-05-15 2002-11-27 Fujitsu Limited Touch panel device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11950512B2 (en) 2020-03-23 2024-04-02 Apple Inc. Thin-film acoustic imaging system for imaging through an exterior surface of an electronic device housing

Also Published As

Publication number Publication date
GB0723396D0 (en) 2008-01-09
JP2007533039A (en) 2007-11-15
CN101387933A (en) 2009-03-18
CN100530057C (en) 2009-08-19
GB0622184D0 (en) 2006-12-20
WO2005103872A2 (en) 2005-11-03
JP2011123904A (en) 2011-06-23
GB2428092B (en) 2008-04-16
GB0816653D0 (en) 2008-10-22
GB2443744B (en) 2008-10-29
JP4989461B2 (en) 2012-08-01
CN1977236A (en) 2007-06-06
GB2428092A (en) 2007-01-17
GB2443744A (en) 2008-05-14
GB2449809A (en) 2008-12-03
JP2010232664A (en) 2010-10-14
AU2005236440A1 (en) 2005-11-03
CN101387933B (en) 2011-05-18

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