WO2014044181A1 - Écran tactile infrarouge - Google Patents

Écran tactile infrarouge Download PDF

Info

Publication number
WO2014044181A1
WO2014044181A1 PCT/CN2013/083727 CN2013083727W WO2014044181A1 WO 2014044181 A1 WO2014044181 A1 WO 2014044181A1 CN 2013083727 W CN2013083727 W CN 2013083727W WO 2014044181 A1 WO2014044181 A1 WO 2014044181A1
Authority
WO
WIPO (PCT)
Prior art keywords
infrared
circuit board
touch panel
touch screen
frame
Prior art date
Application number
PCT/CN2013/083727
Other languages
English (en)
Chinese (zh)
Inventor
尚晓东
吴羊群
刘新斌
Original Assignee
北京汇冠新技术股份有限公司
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 北京汇冠新技术股份有限公司 filed Critical 北京汇冠新技术股份有限公司
Publication of WO2014044181A1 publication Critical patent/WO2014044181A1/fr

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

  • the invention relates to an infrared touch screen. Background technique
  • Infrared touch screens are widely used in various environments due to their stable operation and long service life.
  • an infrared touch screen includes a touch panel mounted on the front of the display and a bezel including a circuit board, such as a glass, and for covering the display, the bezel surrounding the outside of the touch panel, at the border
  • the infrared emitting elements and the infrared receiving tubes are arranged above the four sides of the circuit board.
  • the infrared emitting element and the infrared receiving tube are disposed on opposite sides of the frame to form a crossed infrared matrix on the touch panel surrounded by the frame.
  • the circuit board of the existing infrared touch screen, the infrared emitting element and the infrared receiving tube are disposed above the circuit board, and the infrared light emitted from the infrared emitting element causes a loss of light due to scattering.
  • the present invention provides an infrared touch screen capable of reducing the light intensity loss of infrared light emitted from an infrared emitting element.
  • An infrared touch screen includes a frame and a touch panel, the frame includes a casing and a circuit board, and the casing, the circuit board and the touch panel are sequentially stacked, and the circuit board is provided with an electronic component and an infrared transceiver component.
  • the infrared transceiver component is located between the circuit board and the touch panel.
  • the circuit board is disposed inside an edge of the touch panel.
  • the circuit board is disposed outside the touch panel.
  • the electronic component and the infrared transceiver component are both located between the circuit board and the touch panel.
  • the electronic component is located between the circuit board and the outer casing.
  • the frame further includes a light transmissive frame, and the light transmissive frame is located between the circuit board and the touch panel.
  • the light transmissive frame has a plurality of avoidance holes or avoidance slots matched with the infrared transceiver element.
  • the infrared transceiver component comprises an infrared receiving component and an infrared emitting component
  • the frame further comprises a convex lens, the convex lens being located inside the side of the frame on which the infrared receiving component is disposed.
  • the infrared touch screen since the infrared emitting element is sealed between the circuit board and the touch panel, on the one hand, the sealed space avoids the loss of infrared light emitted by the infrared emitting element, and on the other hand, the touch panel is usually made of transparent glass.
  • the infrared emitting component is disposed between the circuit board and the touch panel, so that the light irradiated to the glass surface by the infrared light emitted by the infrared emitting component can be reflected back to the infrared emitting component by the glass surface, thereby enhancing the emitted infrared light.
  • FIG. 1 is a perspective block diagram showing the structure of a touch screen according to the present invention. detailed description
  • the present invention provides an infrared touch screen including a bezel and a touch panel 13, the bezel including a casing 1 1 and a circuit board 12, and the casing 1 1 , the circuit board 12 and the touch panel 13 are sequentially stacked
  • the circuit board 12 is provided with an electronic component 14 and an infrared receiver
  • the emitting element 15 is located between the circuit board 12 and the touch panel 13.
  • the infrared transceiving element 15 is disposed between the circuit board 12 and the touch panel 13, that is, under the circuit board 12, rather than above the circuit board 12, on the one hand
  • the infrared emitting element is sealed under the circuit board, for example, between the circuit board and the touch panel 13, avoiding the loss of infrared light emitted by the infrared emitting element.
  • the touch panel 13 is usually made of transparent glass, infrared
  • the emitting element is disposed under the circuit board 12 such that the light illuminating the surface of the glass in the infrared light emitted by the infrared emitting element can be reflected back to the infrared emitting element by the surface of the glass, thereby enhancing the emitted infrared light.
  • the circuit board 12 may be disposed inside the edge of the touch panel 13.
  • the circuit board 12 and the casing 11 of the bezel are sequentially superimposed over the touch panel 13, instead of being disposed outside the touch panel 13 and overlapping the touch panel 13 as in the prior art.
  • the touch panel 13 may be made of a material such as transparent glass or plywood.
  • the circuit board 12 can also be disposed outside the touch panel 13, for example, by being overlapped with the touch panel 13.
  • the bezel with the circuit board 12 is disposed outside the touch panel 13, instead of being disposed above the touch panel 13, the height of the bezel can be lowered, so that the thickness of the touch panel becomes thin.
  • the electronic component 14 and the infrared transceiver component 15 may both be located between the circuit board 12 and the touch panel 13. Since the electronic component 14 and the infrared transceiver component 15 are on the same side, the thickness of the circuit board 12 can be reduced, thereby reducing the thickness of the touch screen frame.
  • the electronic component 14 may be located between the circuit board 12 and the outer casing 11. At this time, the electronic component 14 and the infrared transceiving element 15 are located on both sides of the circuit board 12.
  • the frame may further include a light transmissive frame 16 between the circuit board 12 and the touch panel.
  • the transparent frame 16 can have the infrared transceiver
  • the plurality of avoidance holes or avoidance slots 17 are matched in the member 15 for accommodating the infrared transceiver component 15 in the circuit board 12 in the avoidance hole or the avoidance slot 17.
  • the transparent frame 16 is used to filter ambient light other than infrared light, thereby avoiding the interference of the ambient light on the touch screen.
  • the infrared transceiver element 15 includes an infrared receiving element and an infrared emitting element
  • the frame further includes a convex lens located inside the side of the frame on which the infrared receiving element is disposed.
  • the incident infrared light can be concentrated, thereby enhancing the infrared light signal, thereby improving the performance of the infrared touch screen.
  • the infrared touch screen provided by the invention, since the infrared emitting element is sealed under the circuit board, on the one hand, the sealed space avoids the loss of infrared light emitted by the infrared emitting element.
  • the touch panel is usually made of transparent glass, infrared The emitting element is disposed under the circuit board such that the light illuminating the surface of the glass in the infrared light emitted by the infrared emitting element can be reflected back to the infrared emitting element by the surface of the glass, thereby enhancing the emitted infrared light.

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)
  • Position Input By Displaying (AREA)

Abstract

L'invention porte sur un écran tactile infrarouge, comprenant un cadre et un panneau tactile (13) ; le cadre comprend un boîtier (11) et une carte de circuit imprimé (12) ; le boîtier (11), la carte de circuit imprimé (12) et le panneau tactile (13) sont séquentiellement superposés ; la carte de circuit imprimé (12) est pourvue d'un composant électronique (14) et d'un élément émetteur/récepteur infrarouge (15) sur elle ; l'élément émetteur/récepteur infrarouge (15) est placé entre la carte de circuit imprimé (12) et le panneau tactile (13). L'écran tactile infrarouge est utilisé pour éviter la perte de la lumière infrarouge émise par un élément émetteur infrarouge, intensifiant ainsi la lumière infrarouge émise par l'élément émetteur infrarouge.
PCT/CN2013/083727 2012-09-18 2013-09-18 Écran tactile infrarouge WO2014044181A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201220478105.4 2012-09-18
CN 201220478105 CN202771401U (zh) 2012-09-18 2012-09-18 红外触摸屏

Publications (1)

Publication Number Publication Date
WO2014044181A1 true WO2014044181A1 (fr) 2014-03-27

Family

ID=47777963

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/083727 WO2014044181A1 (fr) 2012-09-18 2013-09-18 Écran tactile infrarouge

Country Status (2)

Country Link
CN (1) CN202771401U (fr)
WO (1) WO2014044181A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11016605B2 (en) 2017-03-22 2021-05-25 Flatfrog Laboratories Ab Pen differentiation for touch displays
US11029783B2 (en) 2015-02-09 2021-06-08 Flatfrog Laboratories Ab Optical touch system comprising means for projecting and detecting light beams above and inside a transmissive panel
US11182023B2 (en) 2015-01-28 2021-11-23 Flatfrog Laboratories Ab Dynamic touch quarantine frames
US11256371B2 (en) 2017-09-01 2022-02-22 Flatfrog Laboratories Ab Optical component
US11269460B2 (en) 2017-03-28 2022-03-08 Flatfrog Laboratories Ab Touch sensing apparatus and method for assembly
US11474644B2 (en) 2017-02-06 2022-10-18 Flatfrog Laboratories Ab Optical coupling in touch-sensing systems
US11567610B2 (en) 2018-03-05 2023-01-31 Flatfrog Laboratories Ab Detection line broadening
US11579731B2 (en) 2016-12-07 2023-02-14 Flatfrog Laboratories Ab Touch device
US11893189B2 (en) 2020-02-10 2024-02-06 Flatfrog Laboratories Ab Touch-sensing apparatus
US11943563B2 (en) 2019-01-25 2024-03-26 FlatFrog Laboratories, AB Videoconferencing terminal and method of operating the same

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202771401U (zh) * 2012-09-18 2013-03-06 北京汇冠新技术股份有限公司 红外触摸屏
CN104461167A (zh) * 2013-09-12 2015-03-25 奇鋐科技股份有限公司 光学触控模组及光学触控构件结构
CN104461166A (zh) * 2013-09-12 2015-03-25 奇鋐科技股份有限公司 光学触控模组及其装置
CN104461165A (zh) * 2013-09-12 2015-03-25 奇鋐科技股份有限公司 光学触控模组及其构件
CN106445252B (zh) * 2016-11-23 2023-10-20 杭州碳诺电子科技有限公司 能避免连笔轨迹误识别和记录粗细的手写红外采集结构

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05189123A (ja) * 1992-01-14 1993-07-30 Matsushita Electric Ind Co Ltd タッチスイッチ装置
CN201000622Y (zh) * 2006-12-30 2008-01-02 贺伟 一种红外线触摸屏装置
CN201097368Y (zh) * 2007-10-29 2008-08-06 北京汇冠新技术有限公司 红外触摸屏的局部透镜抗干扰光路结构
CN102419667A (zh) * 2011-10-27 2012-04-18 北京汇冠新技术股份有限公司 用于红外触摸屏的透光部件、红外触摸屏及触摸显示器
CN202677356U (zh) * 2012-07-18 2013-01-16 绍兴文理学院 一种红外触摸屏
CN202771401U (zh) * 2012-09-18 2013-03-06 北京汇冠新技术股份有限公司 红外触摸屏

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05189123A (ja) * 1992-01-14 1993-07-30 Matsushita Electric Ind Co Ltd タッチスイッチ装置
CN201000622Y (zh) * 2006-12-30 2008-01-02 贺伟 一种红外线触摸屏装置
CN201097368Y (zh) * 2007-10-29 2008-08-06 北京汇冠新技术有限公司 红外触摸屏的局部透镜抗干扰光路结构
CN102419667A (zh) * 2011-10-27 2012-04-18 北京汇冠新技术股份有限公司 用于红外触摸屏的透光部件、红外触摸屏及触摸显示器
CN202677356U (zh) * 2012-07-18 2013-01-16 绍兴文理学院 一种红外触摸屏
CN202771401U (zh) * 2012-09-18 2013-03-06 北京汇冠新技术股份有限公司 红外触摸屏

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11182023B2 (en) 2015-01-28 2021-11-23 Flatfrog Laboratories Ab Dynamic touch quarantine frames
US11029783B2 (en) 2015-02-09 2021-06-08 Flatfrog Laboratories Ab Optical touch system comprising means for projecting and detecting light beams above and inside a transmissive panel
US11579731B2 (en) 2016-12-07 2023-02-14 Flatfrog Laboratories Ab Touch device
US11474644B2 (en) 2017-02-06 2022-10-18 Flatfrog Laboratories Ab Optical coupling in touch-sensing systems
US11740741B2 (en) 2017-02-06 2023-08-29 Flatfrog Laboratories Ab Optical coupling in touch-sensing systems
US11099688B2 (en) 2017-03-22 2021-08-24 Flatfrog Laboratories Ab Eraser for touch displays
US11016605B2 (en) 2017-03-22 2021-05-25 Flatfrog Laboratories Ab Pen differentiation for touch displays
US11269460B2 (en) 2017-03-28 2022-03-08 Flatfrog Laboratories Ab Touch sensing apparatus and method for assembly
US11281338B2 (en) 2017-03-28 2022-03-22 Flatfrog Laboratories Ab Touch sensing apparatus and method for assembly
US11256371B2 (en) 2017-09-01 2022-02-22 Flatfrog Laboratories Ab Optical component
US11650699B2 (en) 2017-09-01 2023-05-16 Flatfrog Laboratories Ab Optical component
US11567610B2 (en) 2018-03-05 2023-01-31 Flatfrog Laboratories Ab Detection line broadening
US11943563B2 (en) 2019-01-25 2024-03-26 FlatFrog Laboratories, AB Videoconferencing terminal and method of operating the same
US11893189B2 (en) 2020-02-10 2024-02-06 Flatfrog Laboratories Ab Touch-sensing apparatus

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Publication number Publication date
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