WO2016032085A1 - Procédé pour balayer un panneau tactile et circuit intégré tactile pour le réaliser - Google Patents

Procédé pour balayer un panneau tactile et circuit intégré tactile pour le réaliser Download PDF

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Publication number
WO2016032085A1
WO2016032085A1 PCT/KR2015/003751 KR2015003751W WO2016032085A1 WO 2016032085 A1 WO2016032085 A1 WO 2016032085A1 KR 2015003751 W KR2015003751 W KR 2015003751W WO 2016032085 A1 WO2016032085 A1 WO 2016032085A1
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WO
WIPO (PCT)
Prior art keywords
lines
numbered
sensing
driving
signals
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Application number
PCT/KR2015/003751
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English (en)
Korean (ko)
Inventor
홍원철
송준
김한경
김영욱
Original Assignee
주식회사 동부하이텍
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Application filed by 주식회사 동부하이텍 filed Critical 주식회사 동부하이텍
Publication of WO2016032085A1 publication Critical patent/WO2016032085A1/fr

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    • 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

Definitions

  • Embodiments of the present invention relate to a touch panel scanning method and a touch integrated circuit for performing the same. More particularly, the present invention relates to a method for scanning a touch panel to detect a touch signal or gesture by a user, and a touch integrated circuit for performing the same.
  • the touch panel may be used as an input device of a smart device including a display panel and an application processor.
  • the touch panel may be classified into a resistive type, a capacitive type, an electro magnetic type, and the like.
  • a mutual capacitance type touch panel may detect a touch position by measuring a mutual capacitance changed by a touch of a conductor between a driving line and a sensing line.
  • the mutual capacitance type touch panel may include a plurality of driving lines and a plurality of sensing lines crossing the driving lines. When driving signals are sequentially provided to the driving lines, mutual capacitance generated by the provision of the driving signals from the sensing lines may be detected.
  • the driving lines and the sensing lines may be connected to a touch integrated circuit, and the touch integrated circuit may provide the driving signals and obtain touch signals from the sensing lines.
  • the touch integrated circuit may sequentially provide driving signals to the driving lines, and sequentially detect sensing signals corresponding to the driving lines from the sensing lines. However, when the touch panel is operated in the full scan mode as described above, power consumption of the touch panel may be increased.
  • Embodiments of the present invention for solving the above problems are to provide a touch panel scanning method that can reduce the power consumption of the touch panel and a touch integrated circuit suitable for performing the same.
  • the touch panel scanning method comprising sequentially providing drive signals to the odd-numbered driving lines of the touch panel, from at least some of the sensing lines of the touch panel And sequentially detecting sensing signals corresponding to the odd-numbered driving lines to obtain first scan data.
  • the method may further include sequentially providing driving signals to even-numbered driving lines of the touch panel, and corresponding to the even-numbered driving lines from the at least some sensing lines.
  • the method may further include obtaining second scan data by sequentially detecting the sensing signals.
  • the first scan data may be obtained from odd or even sensing lines among the sensing lines.
  • the first scan data may be obtained from odd-numbered sensing lines among the sensing lines.
  • the method may include sequentially providing driving signals to the odd-numbered driving lines, and sequentially detecting sensing signals corresponding to the odd-numbered driving lines from even-numbered sensing lines of the touch panel.
  • the method may further include obtaining second scan data.
  • the method may further include sequentially providing driving signals to even-numbered driving lines of the touch panel, and sequentially detecting sensing signals corresponding to the even-numbered driving lines from the odd-numbered sensing lines. Acquiring 3 scan data; sequentially providing driving signals to the even-numbered driving lines; sequentially detecting sensing signals corresponding to the even-numbered driving lines from the even-numbered sensing lines; The method may further include obtaining 4 scan data.
  • a touch integrated circuit for providing drive signals to the drive lines of the touch panel, and a signal processor for detecting the sensing signals from the sensing lines of the touch panel And a controller for controlling operations of the touch driver and the signal processor.
  • the touch driver sequentially provides driving signals to odd-numbered driving lines among the driving lines
  • the signal processor sequentially processes sensing signals corresponding to the odd-numbered driving lines from at least some of the sensing lines.
  • the first scan data may be obtained by detecting the data.
  • the touch driver sequentially provides driving signals to even-numbered driving lines of the touch panel
  • the signal processor is configured to provide the even-numbered driving lines from the at least some sensing lines.
  • Second scan data may be obtained by sequentially detecting corresponding sensing signals.
  • the first scan data may be obtained from odd-numbered sensing lines among the sensing lines.
  • the touch driver sequentially provides driving signals to the odd-numbered driving lines, and the signal processor corresponds to the odd-numbered driving lines from even-numbered sensing lines of the touch panel.
  • the second scan data may be obtained by sequentially detecting the sensing signals.
  • the touch driver sequentially provides driving signals to even-numbered driving lines of the touch panel, and the signal processor corresponds to the even-numbered driving lines from the odd-numbered sensing lines.
  • the sensing signals may be sequentially detected to obtain third scan data.
  • the touch driver sequentially provides driving signals to the even-numbered driving lines, and the signal processor sequentially detects sensing signals corresponding to the even-numbered driving lines from the even-numbered sensing lines and sequentially generates a fourth signal.
  • Scan data can be obtained.
  • driving signals may be selectively provided to odd or even driving lines, and sensing signals may be odd and And / or from even numbered sensing lines. Accordingly, power consumption of the touch panel may be greatly reduced as compared with the case in which the touch panel is operated in the full scan mode.
  • FIG. 1 is a block diagram illustrating a smart device using a touch integrated circuit according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram illustrating a touch panel and a touch integrated circuit shown in FIG. 1.
  • 3 and 4 are schematic views for explaining a touch panel scanning method according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram illustrating a full scan mode of a touch panel.
  • 6 to 9 are schematic views for explaining a touch panel scanning method according to another embodiment of the present invention.
  • the element When an element is described as being disposed or connected on another element or layer, the element may be placed or connected directly on the other element, and other elements or layers may be placed therebetween. It may be. Alternatively, where one element is described as being directly disposed or connected on another element, there may be no other element between them. Terms such as first, second, third, etc. may be used to describe various items such as various elements, compositions, regions, layers and / or parts, but the items are not limited by these terms. Will not.
  • Embodiments of the invention are described with reference to schematic illustrations of ideal embodiments of the invention. Accordingly, changes from the shapes of the illustrations, such as changes in manufacturing methods and / or tolerances, are those that can be expected sufficiently. Accordingly, embodiments of the invention are not to be described as limited to the particular shapes of the areas described as the illustrations, but include variations in the shapes, and the areas described in the figures are entirely schematic and their shapes. Is not intended to describe the precise shape of the region nor is it intended to limit the scope of the invention.
  • FIG. 1 is a block diagram illustrating a smart device using a touch integrated circuit according to an exemplary embodiment of the present invention
  • FIG. 2 is a schematic diagram illustrating the touch panel and the touch integrated circuit illustrated in FIG. 1.
  • a smart device 100 generally includes a touch panel 110, a display panel 120 disposed below the touch panel 110, and a touch connected to the touch panel 110.
  • An integrated circuit 130 and an application processor 140 for operating an application program according to the signals detected by the touch integrated circuit 130 may be included.
  • touch panel 110 for example, a mutual capacitance type touch panel may be used.
  • the touch panel 110 may include a plurality of driving lines 112 and sensing lines 114 that vertically cross the driving lines 112.
  • the sensing lines 114 may be disposed on the driving lines 112, and an insulating layer (not shown) may be disposed between the driving lines 112 and the sensing lines 114. .
  • the touch integrated circuit 130 may include a touch driver 132 for providing driving signals to the driving lines 112 of the touch panel 110, and the touch panel 110 of the touch panel 110.
  • a signal processor 134 for detecting electrical signals generated from the sensing lines 114, that is, sensing signals, and converting the electrical signals into digital signals, and the touch driver 132 and the signal processor 134.
  • the controller 136 may control an operation of the control unit and transmit a command corresponding to the digital signals to the application processor 140.
  • the smart device 100 may execute a low power mode to reduce power consumption, and the display panel 120 may be turned off in the low power mode.
  • the low power mode may be executed through a power button (not shown) of the smart device 100.
  • the low power mode is automatically executed. It may be.
  • the low power mode may be executed while a sound source playing program such as a music player is executed.
  • the touch panel scanning method uses the touch panel 110 while the low power mode of the display panel 120 is executed as described above, that is, while the display panel 120 remains off. It may be used to detect an input touch signal or gesture. According to an embodiment of the present invention, the touch integrated circuit 130 may be operated in a partial scan mode to reduce power consumption of the touch panel 110.
  • FIG. 3 and 4 are schematic diagrams for describing a touch panel scanning method according to an embodiment of the present invention
  • Figure 5 is a schematic diagram for explaining a full scan mode of the touch panel.
  • the partial scan mode of the touch panel 110 may be executed while the display panel 120 is operated in the low power mode. That is, the partial scan mode of the touch panel 110 may be used to detect the touch signal or gesture while the display panel 120 is kept off.
  • a driving signal on odd-numbered or even-numbered driving lines 112A or 112B of the driving lines 112 to detect the touch signal or gesture while the partial scan mode is executed. May be provided and sensing signals corresponding to the driving signals may be received from the sensing lines 114.
  • the first scan data constituting the first frame sequentially provides driving signals to the odd-numbered driving lines 112A and senses received from the sensing lines 114 as shown in FIG. 3. May include signals. That is, as shown in FIG. 3, the first scan data includes sensing signals obtained after providing the first driving signal D1, sensing signals obtained after providing the third driving signal D3, Sensing signals obtained after providing the fifth driving signal D5 and sensing signals obtained after providing the seventh driving signal D7 may be included.
  • the second scan data constituting the second frame sequentially provides driving signals to the even-numbered driving lines 112B and the sensing signals received from the sensing lines 114 as shown in FIG. 4. It may include. That is, as shown in FIG. 4, the second scan data includes sensing signals obtained after providing the second driving signal D2, sensing signals obtained after providing the fourth driving signal D4, Sensing signals obtained after providing the sixth driving signal D6 and sensing signals obtained after providing the eighth driving signal D8 may be included.
  • the controller 136 may repeatedly acquire the first scan data and the second scan data to detect the touch signal or gesture.
  • each of the frames is configured by sensing signals received from the sensing lines 114 after driving signals are selectively provided to the odd or even driving lines 112A or 112B.
  • the power consumption of 110 can be greatly reduced.
  • the operation mode of the touch panel 110 may be switched from the partial scan mode to the full scan mode.
  • the full scan mode may be used to improve linearity and accuracy of the touch panel 110.
  • driving signals may be sequentially provided to the driving lines 112, and scan data may be obtained using electrical signals detected from the sensing lines 114.
  • 6 to 9 are schematic views for explaining a touch panel scanning method according to another embodiment of the present invention.
  • the touch driver 132 selectively provides driving signals to the odd or even driving lines 112A or 112B while the touch panel 110 is operated in the partial scan mode.
  • the signal processor 134 may selectively receive sensing signals from odd or even sensing lines 114A or 114B.
  • the first scan data constituting the first frame sequentially provides driving signals to the odd-numbered driving lines 112A and is received from the odd-numbered sensing lines 114A, as shown in FIG. 6.
  • the sensing signals may be included. That is, as shown in FIG. 6, the first scan data includes sensing signals obtained from the odd-numbered sensing lines 114A and the third driving signal D3 after providing the first driving signal D1. Sensing signals obtained from the odd-numbered sensing lines 114A after providing a fifth driving signal D5 and sensing signals obtained from the odd-numbered sensing lines 114A after providing a fifth driving signal D5 After providing the signal D7, the detection signal may include sensing signals obtained from the odd-numbered sensing lines 114A.
  • the second scan data constituting the second frame sequentially provides driving signals to the odd-numbered driving lines 112A and senses the sensing signals received from the even-numbered sensing lines 114B. It may include. That is, as shown in FIG. 7, the first scan data includes sensing signals obtained from the even-numbered sensing lines 114B and the third driving signal D3 after providing the first driving signal D1. Sensing signals obtained from the even-numbered sensing lines 114B after providing a fifth driving signal, and sensing signals obtained from the even-numbered sensing lines 114B after a fifth driving signal D5 is provided. After providing the signal D7, the sensing signals may be obtained from the even-numbered sensing lines 114B.
  • the third scan data constituting the third frame sequentially supplies driving signals to the even-numbered driving lines 112B and senses the sensing signals received from the odd-numbered sensing lines 114A. It may include. That is, as shown in FIG. 8, the third scan data includes sensing signals acquired from the odd-numbered sensing lines 114A and the fourth driving signal D4 after providing the second driving signal D2. Sensing signals acquired from the odd-numbered sensing lines 114A after providing the sixth driving signal and sensing signals acquired from the odd-numbered sensing lines 114A after providing the sixth driving signal D6 After providing the signal D8, the sensing signal may include sensing signals obtained from the odd-numbered sensing lines 114A.
  • the fourth scan data constituting the fourth frame sequentially supplies driving signals to the even-numbered driving lines 112B and senses the sensing signals received from the even-numbered sensing lines 114B. It may include. That is, as shown in FIG. 9, the fourth scan data includes sensing signals obtained from the even-numbered sensing lines 114B and the fourth driving signal D4 after providing the second driving signal D2. Sensing signals obtained from the even-numbered sensing lines 114B after supplying?, Sensing signals obtained from the even-numbered sensing lines 114B and eighth driving after providing a sixth driving signal D6 After providing the signal D8, the sensing signal may include sensing signals obtained from the even-numbered sensing lines 114B.
  • the controller 136 may repeatedly acquire the first to fourth scan data in order to recognize the touch signal or gesture. At this time, the order of acquiring the first to fourth scan data may be changed, whereby the scope of the present invention is not limited.
  • each frame is selectively sensed from the odd or even sensing lines 114A or 114B after drive signals are selectively provided to the odd or even driving lines 112A or 112B.
  • the power consumption of the touch panel 110 may be greatly reduced since the signal is configured by the signals.
  • the touch panel scanning method according to the embodiments of the present invention as described above may be preferably used while the smart device 100 is operated in a low power mode.
  • the touch panel scanning method may be used to operate functions of an application program operated in an off state of the display panel 120 or an environment setting program of the smart device 100.
  • the application program may include a sound source playback program, a flash on / off program, and the like.
  • the configuration program may be a WiFi mode, a Bluetooth mode, a short range communication mode, or a ring tone. Mode, vibration mode, and the like.
  • the controller 136 transmits a command corresponding to the input touch signal or gesture to the application processor 140.
  • the application processor 140 may execute an event corresponding to the command while keeping the display panel 120 in an off state.
  • the driving signals may be selectively provided to the odd-numbered or even-numbered driving lines 112A or 114B to obtain scan data constituting one frame, and sensing The signals may be obtained from odd and / or even sensing lines 114A and / or 114B. Accordingly, power consumption of the touch panel 110 may be greatly reduced as compared with the case in which the touch panel 110 is operated in the full scan mode.
  • embodiments of the present invention as described above can be preferably used for the manufacture of touch integrated circuits and touch panels.

Abstract

L'invention concerne un procédé pour balayer un panneau tactile et un circuit intégré tactile. Un pilote tactile fournit séquentiellement des signaux de pilotage à des lignes de pilotage à nombre impair d'un panneau tactile, et une unité de traitement de signal détecte séquentiellement des signaux de détection correspondant aux lignes de pilotage à nombre impair en provenance de lignes de détection du panneau tactile pour obtenir des premières données de balayage. Ensuite, le pilote tactile fournit séquentiellement des signaux de pilotage à des lignes de pilotage à nombre pair du panneau tactile, et l'unité de traitement de signal détecte séquentiellement des signaux de détection correspondant aux lignes de pilotage à nombre pair en provenance des lignes de détection pour obtenir des secondes données de balayage.
PCT/KR2015/003751 2014-08-29 2015-04-15 Procédé pour balayer un panneau tactile et circuit intégré tactile pour le réaliser WO2016032085A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020140113796A KR20160026041A (ko) 2014-08-29 2014-08-29 터치 패널 스캐닝 방법 및 이를 수행하기 위한 터치 집적 회로
KR10-2014-0113796 2014-08-29

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010039602A (ja) * 2008-08-01 2010-02-18 Sony Corp タッチパネルおよびその動作方法ならびに電子機器およびその動作方法
KR101105978B1 (ko) * 2009-12-04 2012-01-18 위순임 분할 스캔 구역을 갖는 터치스크린 장치 및 분할 스캔 방법
KR101281018B1 (ko) * 2012-07-20 2013-07-08 (주)실리콘화일 터치패널의 분할 스캔 방법
US20130265243A1 (en) * 2012-04-10 2013-10-10 Motorola Mobility, Inc. Adaptive power adjustment for a touchscreen
WO2013183925A1 (fr) * 2012-06-04 2013-12-12 크루셜텍 주식회사 Procédé et appareil de détection de toucher

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130021574A (ko) 2011-08-23 2013-03-06 주식회사 동부하이텍 터치센서패널

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010039602A (ja) * 2008-08-01 2010-02-18 Sony Corp タッチパネルおよびその動作方法ならびに電子機器およびその動作方法
KR101105978B1 (ko) * 2009-12-04 2012-01-18 위순임 분할 스캔 구역을 갖는 터치스크린 장치 및 분할 스캔 방법
US20130265243A1 (en) * 2012-04-10 2013-10-10 Motorola Mobility, Inc. Adaptive power adjustment for a touchscreen
WO2013183925A1 (fr) * 2012-06-04 2013-12-12 크루셜텍 주식회사 Procédé et appareil de détection de toucher
KR101281018B1 (ko) * 2012-07-20 2013-07-08 (주)실리콘화일 터치패널의 분할 스캔 방법

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