WO2002082253A2 - A touch input system - Google Patents
A touch input system Download PDFInfo
- Publication number
- WO2002082253A2 WO2002082253A2 PCT/US2002/010623 US0210623W WO02082253A2 WO 2002082253 A2 WO2002082253 A2 WO 2002082253A2 US 0210623 W US0210623 W US 0210623W WO 02082253 A2 WO02082253 A2 WO 02082253A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light emitting
- touch input
- emitting devices
- input system
- light
- 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
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0428—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by sensing at the edges of the touch surface the interruption of optical paths, e.g. an illumination plane, parallel to the touch surface which may be virtual
Definitions
- This invention relates to a touch input system for use with an information display system. More particularly, the present invention is directed to an optical touch input system for use with a flat panel display.
- Touch input systems have become ubiquitous throughout industrialized countries. These systems have replaced or supplemented conventional input systems, such as a keyboard or mouse in many applications, including for example, information kiosks, retail point of sale, order input, e.g. restaurants, and industrial line operations.
- Various types of touch input systems are currently in the marketplace. These include acoustic, resistive, capacitive and infrared.
- the present invention is directed primarily to infrared touch input systems. As with most technologies, a key to market penetration is improving quality and performance while reducing production costs. The present invention addresses at least one of these aspects in that it enables for reduced part count and the resulting savings in costs.
- the present invention also provides for touch analysis which in turn improves the system performance.
- the present invention will typically be used in conjunction with some type of information display system, for example a flat panel display connected to a computer system.
- the computer system provides a variety of screens on the display illustrating a selection of objects that may be selected by a user.
- the touch input system communicates the location of the touch to the computer system.
- the information display system typically includes two pairs of oppositely disposed sides that define an information display area.
- this invention provides a touch input system, comprising a frame having a first pair of opposed sides positioned parallel to a first axis and a second pair of opposed sides positioned parallel to a second axis, the second axis being perpendicular to the first axis, each of the second pair of sides connecting the first pair of sides, all four sides defining a generally rectangular touch input area, a linear array of light emitting devices along each side, and a light detection device positioned at each corner of the frame.
- this invention provides a touch input system, comprising a touch screen comprising a frame having a first pair of opposed sides positioned parallel to a first axis and a second pair of opposed sides positioned parallel to a second axis, the second axis being perpendicular to the first axis, each of the second pair of sides connecting the first pair of sides, all four sides defining a generally rectangular touch input area, a linear array of light emitting devices along each side, and a light detection device positioned at each corner of the frame; and a controller coupled to the light emitting devices and the light detection devices, wherein the controller sequentially activates each linear array and activates the light detection devices positioned at corners of the frame opposed to the activated array of light emitting devices.
- Figure 1 is a perspective view of a touch input system of the present invention.
- Figure 2 is a planar, schematic view of a touch input system of the present invention.
- the information display system may include a flat panel display having two pairs of oppositely disposed sides (Srase S 2 , S 3 , and S 4 ) defining an information display area I.
- the touch input system 10 of the present invention may include a frame L having two pairs of oppositely disposed sides (L ls L 2 , L 3 , and L 4 ) defining an open area corresponding in size and shape to the information display area I.
- Each of the sides of the touch frame includes a linear array of a light emitting devices (Eêt E 2 , E 3 , and E 4 ).
- the light emitting devices are organic light emitting devices (OLEDs) that emit light in the infrared (IR) range.
- the touch input system 10 also includes a light detecting device (Dinci D 2 , D 3 , and D 4 ) positioned at each corner of the frame L.
- the light detecting device is an IR phototransistor.
- the touch input system 10 includes a light transmissive prism (PCor P 2 , P 3 , and P 4 ) positioned along and adjacent each linear array of light emitting devices (Eêt E 2 , E 3 , and E 4 ) such that light emitted from the light emitting devices is directed across the information display area I.
- the touch input system 10 of the present invention can determine the location of a touch on the information display area I.
- the information display system includes a display device, for example a flat panel display having four sides (Slope S 2 , S 3 , and S 4 ) defining a information display area I.
- the touch input system 10 includes a frame L having four sides (Lhiel L 2 , L 3 , and L 4 ) defining an opening corresponding in size and shape to the information display area I.
- the frame may overlay a portion of the area defined by the four sides of the display device, therein providing less usable display area for touch applications.
- the touch input system 10 includes a linear array of light emitting devices (Eêt E 2 , E 3 , and E 4 ) along each of the four sides of the frame L tolerate L 2 , L 3 , and L 4 , respectively.
- Each array includes a plurality of individual light emitting devices. In the illustrated embodiment, each array includes N light emitting devices however the system may have a different number of devices in each array. Typically, the number of devices in opposing arrays will be the same to provide a rectangular or square frame.
- the individual light emitting devices are Organic Light Emitting Diodes (OLEDs) that emit in the infrared (IR) band.
- the OLEDs may be doped with rare earth ions such as neodymium or erbium.
- the touch input system 10 also includes a light detecting device (Dinci D 2 , D 3 , and D 4 ) positioned at each corner of the frame.
- the detecting devices are IR detectors such a silicon phototransistors.
- the touch input system also includes a light transmissive prism (P,, P 2 , P 3 , and P 4 ) positioned along each array E réelle E 2 , E 3 , and E 4 , respectively.
- Each of the individual OLED elements of each array are electrically connected to a controller system (not shown) which enables one to individually activate each of the elements.
- this controller system is comprised of a combination of circuit elements dedicated to the touch system function as well as circuit elements supporting both display and touch functions.
- a course scan/fine scan approach can be implemented.
- sequential blocks of light emitting elements may be activated to approximately locate a touch. Once the approximate location of a touch is determined a more precise location can be measured by sequential activation of a limited segment of individual light emitting elements determined by the approximate location determination.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002307121A AU2002307121A1 (en) | 2001-04-04 | 2002-04-04 | A touch input system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US28145701P | 2001-04-04 | 2001-04-04 | |
US60/281,457 | 2001-04-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002082253A2 true WO2002082253A2 (en) | 2002-10-17 |
WO2002082253A3 WO2002082253A3 (en) | 2003-05-01 |
Family
ID=23077388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2002/010623 WO2002082253A2 (en) | 2001-04-04 | 2002-04-04 | A touch input system |
Country Status (3)
Country | Link |
---|---|
US (1) | US20020175900A1 (en) |
AU (1) | AU2002307121A1 (en) |
WO (1) | WO2002082253A2 (en) |
Cited By (2)
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DE102005038389A1 (en) * | 2005-08-09 | 2007-02-15 | Cerbe, Michael, Dipl.-Ing. | Vending machine control position recognition method, involves sending light of units forming scattering field, so that control level is covered by radiation after switching cycle, and using detectors false alarm to find position |
CN102597813A (en) * | 2009-06-18 | 2012-07-18 | 百安托国际有限公司 | Systems and methods for sensing and tracking radiation blocking objects on a surface |
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US9213443B2 (en) * | 2009-02-15 | 2015-12-15 | Neonode Inc. | Optical touch screen systems using reflected light |
WO2009008786A1 (en) * | 2007-07-06 | 2009-01-15 | Neonode Inc. | Scanning of a touch screen |
US9471170B2 (en) * | 2002-11-04 | 2016-10-18 | Neonode Inc. | Light-based touch screen with shift-aligned emitter and receiver lenses |
US8674966B2 (en) | 2001-11-02 | 2014-03-18 | Neonode Inc. | ASIC controller for light-based touch screen |
SE0103835L (en) * | 2001-11-02 | 2003-05-03 | Neonode Ab | Touch screen realized by display unit with light transmitting and light receiving units |
US8339379B2 (en) * | 2004-04-29 | 2012-12-25 | Neonode Inc. | Light-based touch screen |
US9778794B2 (en) | 2001-11-02 | 2017-10-03 | Neonode Inc. | Light-based touch screen |
US20100238139A1 (en) * | 2009-02-15 | 2010-09-23 | Neonode Inc. | Optical touch screen systems using wide light beams |
US9052777B2 (en) | 2001-11-02 | 2015-06-09 | Neonode Inc. | Optical elements with alternating reflective lens facets |
US9164654B2 (en) | 2002-12-10 | 2015-10-20 | Neonode Inc. | User interface for mobile computer unit |
US9052771B2 (en) * | 2002-11-04 | 2015-06-09 | Neonode Inc. | Touch screen calibration and update methods |
US8587562B2 (en) * | 2002-11-04 | 2013-11-19 | Neonode Inc. | Light-based touch screen using elliptical and parabolic reflectors |
US8416217B1 (en) | 2002-11-04 | 2013-04-09 | Neonode Inc. | Light-based finger gesture user interface |
US8896575B2 (en) * | 2002-11-04 | 2014-11-25 | Neonode Inc. | Pressure-sensitive touch screen |
US8902196B2 (en) * | 2002-12-10 | 2014-12-02 | Neonode Inc. | Methods for determining a touch location on a touch screen |
US9389730B2 (en) * | 2002-12-10 | 2016-07-12 | Neonode Inc. | Light-based touch screen using elongated light guides |
US8403203B2 (en) * | 2002-12-10 | 2013-03-26 | Neonoda Inc. | Component bonding using a capillary effect |
US9195344B2 (en) * | 2002-12-10 | 2015-11-24 | Neonode Inc. | Optical surface using a reflected image for determining three-dimensional position information |
US7042444B2 (en) * | 2003-01-17 | 2006-05-09 | Eastman Kodak Company | OLED display and touch screen |
US7133032B2 (en) * | 2003-04-24 | 2006-11-07 | Eastman Kodak Company | OLED display and touch screen |
US7417627B2 (en) * | 2004-10-27 | 2008-08-26 | Eastman Kodak Company | Sensing display |
JP4645822B2 (en) * | 2005-04-19 | 2011-03-09 | ソニー株式会社 | Image display device and object detection method |
US20090074255A1 (en) * | 2007-09-18 | 2009-03-19 | Motorola, Inc. | Apparatus and method for capturing skin texture biometric in electronic devices |
JP4893683B2 (en) * | 2008-04-11 | 2012-03-07 | ソニー株式会社 | Image display device |
CN101727246B (en) * | 2008-10-13 | 2012-08-29 | 鸿富锦精密工业(深圳)有限公司 | Electronic device with infrared touch function and control method thereof |
CN101727247A (en) * | 2008-10-23 | 2010-06-09 | 鸿富锦精密工业(深圳)有限公司 | Electronic device with infrared touch function and control method thereof |
CN101739179B (en) * | 2008-11-07 | 2011-12-21 | 鸿富锦精密工业(深圳)有限公司 | Electronic device with infrared touch function and control method thereof |
JP4650703B2 (en) * | 2008-12-25 | 2011-03-16 | ソニー株式会社 | Display panel, module and electronic device |
CN101770315B (en) * | 2009-01-05 | 2012-05-23 | 鸿富锦精密工业(深圳)有限公司 | Touch electronic device with sliding control function and sliding control method thereof |
US9063614B2 (en) | 2009-02-15 | 2015-06-23 | Neonode Inc. | Optical touch screens |
US8775023B2 (en) | 2009-02-15 | 2014-07-08 | Neanode Inc. | Light-based touch controls on a steering wheel and dashboard |
US20100218249A1 (en) * | 2009-02-25 | 2010-08-26 | Microsoft Corporation | Authentication via a device |
US20110102371A1 (en) * | 2009-11-03 | 2011-05-05 | Hsun-Wen Chang | Optical Touch Panel |
KR101657252B1 (en) * | 2009-11-13 | 2016-09-19 | 삼성디스플레이 주식회사 | Touch sensing apparatus and method of driving the same |
KR101627715B1 (en) * | 2009-11-18 | 2016-06-14 | 엘지전자 주식회사 | Touch Panel, Driving Method for Touch Panel, and Display Apparatus having a Touch Panel |
JP4990990B2 (en) * | 2010-02-25 | 2012-08-01 | 東芝テック株式会社 | Touch panel display device and detection method of touch panel display device |
WO2013081894A1 (en) | 2011-11-28 | 2013-06-06 | Corning Incorporated | Optical touch-screen systems and methods using a planar transparent sheet |
CN104160366A (en) | 2011-11-28 | 2014-11-19 | 康宁股份有限公司 | Robust optical touch-screen systems and methods using a planar transparent sheet |
TWI526900B (en) * | 2011-12-08 | 2016-03-21 | 原相科技股份有限公司 | Optical touch apparatus, and light source unit and display module for the same |
TWI451312B (en) * | 2011-12-19 | 2014-09-01 | Pixart Imaging Inc | Optical touch device and light source assembly |
US9207800B1 (en) | 2014-09-23 | 2015-12-08 | Neonode Inc. | Integrated light guide and touch screen frame and multi-touch determination method |
US10282034B2 (en) | 2012-10-14 | 2019-05-07 | Neonode Inc. | Touch sensitive curved and flexible displays |
US9921661B2 (en) | 2012-10-14 | 2018-03-20 | Neonode Inc. | Optical proximity sensor and associated user interface |
US9164625B2 (en) | 2012-10-14 | 2015-10-20 | Neonode Inc. | Proximity sensor for determining two-dimensional coordinates of a proximal object |
EP4085321A4 (en) | 2019-12-31 | 2024-01-24 | Neonode Inc | Contactless touch input system |
EP4222586A1 (en) | 2020-09-30 | 2023-08-09 | Neonode Inc. | Optical touch sensor |
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- 2002-04-04 WO PCT/US2002/010623 patent/WO2002082253A2/en not_active Application Discontinuation
- 2002-04-04 AU AU2002307121A patent/AU2002307121A1/en not_active Abandoned
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US4247767A (en) * | 1978-04-05 | 1981-01-27 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence | Touch sensitive computer input device |
JPS60257304A (en) * | 1984-06-05 | 1985-12-19 | Dowa Mining Co Ltd | Optical position detecting device |
DE3836429A1 (en) * | 1988-10-26 | 1990-05-03 | Paul Nolden | Sensor matrix for screens |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005038389A1 (en) * | 2005-08-09 | 2007-02-15 | Cerbe, Michael, Dipl.-Ing. | Vending machine control position recognition method, involves sending light of units forming scattering field, so that control level is covered by radiation after switching cycle, and using detectors false alarm to find position |
CN102597813A (en) * | 2009-06-18 | 2012-07-18 | 百安托国际有限公司 | Systems and methods for sensing and tracking radiation blocking objects on a surface |
US10627973B2 (en) | 2009-06-18 | 2020-04-21 | Baanto International Ltd. | Systems and sensors for sensing and tracking radiation blocking objects on a surface |
EP2443481B1 (en) * | 2009-06-18 | 2021-05-19 | Baanto International Ltd. | Systems and methods for sensing and tracking radiation blocking objects on a surface |
Also Published As
Publication number | Publication date |
---|---|
US20020175900A1 (en) | 2002-11-28 |
WO2002082253A3 (en) | 2003-05-01 |
AU2002307121A1 (en) | 2002-10-21 |
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