KR20160026043A - Method of scanning touch panel and touch integrated circuit for performing the same - Google Patents

Method of scanning touch panel and touch integrated circuit for performing the same Download PDF

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Publication number
KR20160026043A
KR20160026043A KR1020140113799A KR20140113799A KR20160026043A KR 20160026043 A KR20160026043 A KR 20160026043A KR 1020140113799 A KR1020140113799 A KR 1020140113799A KR 20140113799 A KR20140113799 A KR 20140113799A KR 20160026043 A KR20160026043 A KR 20160026043A
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KR
South Korea
Prior art keywords
lines
driving
sensing
touch panel
numbered
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KR1020140113799A
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Korean (ko)
Inventor
이진아
김민선
송현
김영욱
홍원철
Original Assignee
주식회사 동부하이텍
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Application filed by 주식회사 동부하이텍 filed Critical 주식회사 동부하이텍
Priority to KR1020140113799A priority Critical patent/KR20160026043A/en
Priority to PCT/KR2015/003756 priority patent/WO2016032086A1/en
Publication of KR20160026043A publication Critical patent/KR20160026043A/en

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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

Abstract

Disclosed are a touch panel scanning method and a touch integrated circuit. A touch driver sequentially provides driving signals to driving lines of a touch panel, and a signal processing unit sequentially detects sensing signals corresponding to the driving lines from odd-numbered sensing lines of the touch panel to obtain first scan data. Subsequently, the touch driver sequentially provides driving signals to the driving lines, and the signal processing unit sequentially detects sensing signals corresponding to the driving lines from even-numbered sensing lines of the touch panel to obtain second scan data. The purpose of the present invention is to provide the touch panel scanning method to decrease power consumption of the touch panel, and the touch integrated circuit for performing the same.

Description

TECHNICAL FIELD [0001] The present invention relates to a touch panel scanning method and a touch integrated circuit for performing the touch panel scanning method.

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 of scanning a touch panel to detect a touch signal or a gesture by a user, and a touch integrated circuit for performing the method.

The touch panel can 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, and an electro magnetic type.

For example, a touch panel of a mutual capacitance type can detect a touch position by measuring a mutual capacitance which varies due to 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 intersecting the driving lines. When driving signals are sequentially supplied to the driving lines, a mutual capacitance generated by providing 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 acquire touch signals from the sensing lines.

The touch integrated circuit may sequentially provide driving signals to the driving lines and may 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, the power consumption of the touch panel can be increased.

Korean Patent Publication No. 10-2013-0021574 (March 31, 2013)

Embodiments of the present invention for solving the above problems provide a touch panel scanning method capable of reducing power consumption of a touch panel and a touch integrated circuit suitable for performing the touch panel scanning method.

According to an aspect of the present invention, there is provided a touch panel scanning method including sequentially providing driving signals to at least a part of driving lines of a touch panel, And sequentially obtaining sensing signals corresponding to the at least a part of the driving lines to obtain first scan data.

According to embodiments of the present invention, the first scan data may be obtained from odd-numbered sensing lines of the touch panel.

According to embodiments of the present invention, the method may further comprise sequentially providing driving signals to the at least a portion of the driving lines, and sequentially applying driving signals to the at least a portion of the driving lines from the even- And sequentially acquiring the second scan data by sensing the sensing signals sequentially.

According to embodiments of the present invention, the driving signals may be provided to odd-numbered driving lines of the touch panel, and the first scan data may be obtained from odd-numbered sensing lines of the touch panel.

According to embodiments of the present invention, the method may further include sequentially providing driving signals to even-numbered driving lines of the touch panel, and driving the odd-numbered driving lines And successively detecting signals to obtain second scan data.

According to embodiments of the present invention, the method may further include sequentially providing driving signals to the odd-numbered driving lines, sensing the odd-numbered driving lines from the even-numbered sensing lines of the touch panel, Sequentially obtaining drive signals for the even-numbered drive lines, acquiring third scan data by sequentially detecting signals, sequentially supplying drive signals to the even-numbered drive lines, And sequentially detecting the signals to obtain the fourth scan data.

According to embodiments of the present invention, the touch panel may be divided into a plurality of areas, and the driving signals may be provided to driving lines passing through any one of the areas.

According to embodiments of the present invention, the touch panel is divided into a plurality of areas, and the sensing signals can be detected from sensing lines passing through any one of the areas.

According to another aspect of the present invention, there is provided a touch integrated circuit including: a touch driver for providing driving signals to driving lines of a touch panel; a signal processor for sensing signals from sensing lines of the touch panel; And a controller for controlling operations of the touch driver and the signal processor. Here, the touch driver sequentially provides driving signals to at least a part of the driving lines, and the signal processing unit sequentially detects sensing signals corresponding to the at least some driving lines from at least a part of the sensing lines So that the first scan data can be obtained.

According to embodiments of the present invention, the first scan data may be obtained from odd-numbered sensing lines of the touch panel. In this case, after the first scan data is acquired, the touch driver sequentially provides driving signals to the at least some driving lines, and the signal processing unit may receive the driving signals from the even- The second scan data can be obtained by sequentially sensing the sensing signals corresponding to the driving lines.

According to embodiments of the present invention, the driving signals may be provided to odd-numbered driving lines of the touch panel, and the first scan data may be obtained from odd-numbered sensing lines of the touch panel. In this case, after the first scan data is obtained, the touch driver sequentially provides drive signals to the even-numbered drive lines of the touch panel, and the signal processing unit receives the even-numbered drive lines from the odd- It is possible to sequentially obtain the second scan data by sensing the sensing signals corresponding to the second scan data.

After the second scan data is obtained, the touch driver sequentially provides drive signals to the odd-numbered drive lines, and the signal processing unit receives the odd-numbered drive lines from the even-numbered sensing lines of the touch panel, The touch driver sequentially acquires the third scan data, and the touch driver successively provides the drive signals to the even-numbered drive lines, The processing unit may sequentially detect the sensing signals corresponding to the even-numbered driving lines from the even-numbered sensing lines to acquire the fourth scan data.

According to embodiments of the present invention as described above, driving signals may be selectively provided to odd-numbered and / or even-numbered driving lines in order to obtain scan data constituting one frame, Or even-numbered sensing lines.

Alternatively, a part of the touch panel may be used as a touch area, so that the number of driving signals and / or the number of sensing signals used to obtain scan data constituting each frame may be reduced. As a result, the power consumption of the touch panel can be greatly reduced as compared with the case where the touch panel is operated in the full scan mode.

1 is a block diagram illustrating a smart device in which a touch integrated circuit according to an embodiment of the present invention is used.
2 is a schematic view for explaining the touch panel and the touch integrated circuit shown in FIG.
3 and 4 are schematic views for explaining a touch panel scanning method according to an embodiment of the present invention.
5 is a schematic diagram for explaining a full scan mode of the touch panel.
6 to 9 are schematic views for explaining a touch panel scanning method according to another embodiment of the present invention.
10 and 11 are schematic views for explaining a touch panel scanning method according to another embodiment of the present invention.
12 and 13 are schematic views for explaining a touch panel scanning method according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in more detail below with reference to the accompanying drawings showing embodiments of the invention. However, the present invention should not be construed as limited to the embodiments described below, but may be embodied in various other forms. The following embodiments are provided to fully convey the scope of the present invention to those skilled in the art without departing from the scope of the present invention.

When an element is described as being placed on or connected to another element or layer, the element may be directly disposed or connected to the other element, and other elements or layers may be placed therebetween It is possible. Alternatively, if one element is described as being placed directly on or connected to another element, there can be no other element between them. The terms first, second, third, etc. may be used to describe various items such as various elements, compositions, regions, layers and / or portions, but the items are not limited by these terms .

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Furthermore, all terms including technical and scientific terms have the same meaning as will be understood by those skilled in the art having ordinary skill in the art, unless otherwise specified. These terms, such as those defined in conventional dictionaries, shall be construed to have meanings consistent with their meanings in the context of the related art and the description of the present invention, and are to be interpreted as being ideally or externally grossly intuitive It will not be interpreted.

Embodiments of the present invention are described with reference to schematic illustrations of ideal embodiments of the present invention. Thus, changes from the shapes of the illustrations, e.g., changes in manufacturing methods and / or tolerances, are those that can be reasonably expected. Accordingly, the embodiments of the present invention should not be construed as being limited to the specific shapes of the areas illustrated in the drawings, but include deviations in shapes, the areas described in the drawings being entirely schematic and their shapes Is not intended to illustrate the exact shape of the area and is not intended to limit the scope of the invention.

FIG. 1 is a block diagram for explaining a smart device in which a touch integrated circuit according to an embodiment of the present invention is used, and FIG. 2 is a schematic diagram for explaining a touch panel and a touch integrated circuit shown in FIG.

1 and 2, a smart device 100 generally includes a touch panel 110, a display panel 120 disposed below the touch panel 110, a touch panel 110 connected to the touch panel 110, An integrated circuit 130 and an application processor 140 for operating an application program according to signals detected by the touch integrated circuit 130. [

As the touch panel 110, for example, a mutual capacitance type touch panel may be used.

As shown in FIG. 2, the touch panel 110 may include a plurality of driving lines 112 and sensing lines 114 perpendicularly intersecting the driving lines 112. The sensing lines 114 may be disposed on the driving lines 112 and an insulating layer 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, A signal processor 134 for detecting electrical signals or sensing signals generated from the sensing lines 114 and converting the electrical signals to digital signals, And transmits the 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.

For example, the low power mode may be executed through a power button (not shown) of the smart device 100, or alternatively, when the state where the touch signal is not input is maintained for a preset time, the low power mode is automatically executed It is possible. Particularly, the low power mode can be executed even while a sound source reproduction program such as a music player is being executed.

The method of scanning a touch panel according to an embodiment of the present invention may be performed while the low power mode of the display panel 120 is being executed, that is, while the display panel 120 is kept in the off state, It can be used to detect a touch signal or a gesture that is input. According to an embodiment of the present invention, the touch integrated circuit 130 may be operated in a partial scan mode in order to reduce power consumption of the touch panel 110.

FIGS. 3 and 4 are schematic views for explaining a touch panel scanning method according to an embodiment of the present invention, and FIG. 5 is a schematic diagram for explaining a full scan mode of a touch panel.

3 and 4, the partial scan mode of the touch panel 110 may be performed 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 the gesture while the display panel 120 is kept in the off state.

According to an embodiment of the present invention, driving signals may be provided to the driving lines 112 to detect the gesture while the partial scanning mode is executed, and odd-numbered or even-numbered The sensing signals corresponding to the driving signals may be received from the first sensing lines 114A or 114B.

For example, the first scan data constituting the first frame sequentially supplies driving signals to the driving lines 112 as shown in FIG. 3, and sequentially supplies driving signals to the sensing Signals. 3, the first scan data may include sensing signals S1, S3, S5, and S7 obtained from the odd-numbered sensing lines 114A after providing the first driving signal D1. S3, S5, and S7, and a third driving signal D3 obtained from the odd sensing lines 114A after providing the first driving signal D2, the second driving signal D2, The sensing signals S1, S3, S5 and S7 obtained from the odd sensing lines 114A and the fourth driving signal D4 are supplied to the odd sensing lines 114A, S3, S5, and S7 obtained from the odd-numbered sensing lines 114A after providing the fifth drive signals D5, S1, S3, S5, and S7, S3, S5, and S7 and seventh driving signals D7 obtained from the odd sensing lines 114A after providing the odd sensing lines D6, 114A S3, S5, and S7 obtained from the odd-numbered sensing lines 114A after providing the obtained sensing signals S1, S3, S5, and S7 and the eighth driving signal D8, ).

The second scan data constituting the second frame sequentially supplies driving signals to the driving lines 112 as shown in FIG. 4 and sequentially outputs sensing signals received from the even-numbered sensing lines 114B . 4, the second scan data may include sensing signals S2, S4, S6, and S8 obtained from the even-numbered sensing lines 114B after providing the first driving signal D1. The sensing signals S2, S4, S6 and S8 obtained from the even sensing lines 114B and the third driving signal D3 after providing the second driving signal D2, The sensing signals S2, S4, S6, and S8 obtained from the even-numbered sensing lines 114B, the fourth driving signal D4, and the sensing signals obtained from the even-numbered sensing lines 114B S4, S6, and S8 obtained from the even-numbered sensing lines 114B after providing the fifth drive signals D5, S2, S4, S6, and S8, S4, S6, and S8, and seventh driving signals D7 obtained from the even-numbered sensing lines 114B after providing the even-numbered sensing lines D6, 114B S4, S6, and S8 obtained from the even-numbered sensing lines 114B after providing the obtained sensing signals S2, S4, S6, and S8 and the eighth driving signal D8, ).

The controller 136 may repeatedly obtain the first scan data and the second scan data to detect the touch signal or the gesture.

As described above, since each of the frames is constituted by the sensing signals received from the odd-numbered or even-numbered sensing lines 114A or 114B after the driving signals are provided to the driving lines 112, the touch panel 110 Can be greatly reduced.

When the display panel 120 is turned on, 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 the linearity and accuracy of the touch panel 110. 5, driving signals may be sequentially provided to the driving lines 112, and scan data may be acquired using electrical signals sensed from the sensing lines 114 . That is, the driving signals may be sequentially provided to all the driving lines 112 in every frame, and the sensing signals may be sequentially obtained from all the scanning lines 114.

6 to 9 are schematic views for explaining a touch panel scanning method according to another embodiment of the present invention.

According to another embodiment of the present invention, while the touch panel 110 is operated in the partial scan mode, the touch driver 132 selectively supplies driving signals to odd-numbered or even-numbered driving lines 112A or 112B And the signal processing unit 134 may selectively receive the sensing signals from the odd-numbered or even-numbered sensing lines 114A or 114B.

For example, as shown in FIG. 6, the first scan data constituting the first frame sequentially supplies driving signals to the odd-numbered driving lines 112A and receives the driving signals from the odd-numbered sensing lines 114A As shown in FIG. 6, the first scan data may include sensing signals obtained from the odd-numbered sensing lines 114A after providing the first driving signal D1, a third driving signal D3, The sensing signals obtained from the odd sensing lines 114A, the fifth driving signal D5, and the sensing signals obtained from the odd sensing lines 114A, And the sensing signals obtained from the odd-numbered sensing lines 114A after providing the signal D7.

As shown in FIG. 7, the second scan data constituting the second frame sequentially supplies driving signals to the even-numbered driving lines 112B and sequentially outputs sensing signals received from the odd-numbered sensing lines 114A . 7, the second scan data may include sensing signals obtained from the odd-numbered sensing lines 114A after providing the second driving signal D2, a fourth driving signal D4, The sensing signals obtained from the odd sensing lines 114A, the sixth driving signal D6, and the sensing signals obtained from the odd sensing lines 114A, And the sensing signals obtained from the odd-numbered sensing lines 114A after providing the signal D8.

As shown in FIG. 8, the third scan data constituting the third frame sequentially supplies driving signals to the odd-numbered driving lines 112A and sequentially outputs sensing signals received from the even-numbered sensing lines 114B . 8, the first scan data may include sensing signals obtained from the even-numbered sensing lines 114B after providing the first driving signal D1, a third driving signal D3, The sensing signals obtained from the even-numbered sensing lines 114B, the fifth driving signal D5, and the sensing signals obtained from the even-numbered sensing lines 114B and the seventh And the sensing signals obtained from the even-numbered sensing lines 114B after providing the signal D7.

As shown in FIG. 9, the fourth scan data constituting the fourth frame sequentially supplies driving signals to the even-numbered driving lines 112B and sequentially outputs sensing signals received from the even-numbered sensing lines 114B . 9, the fourth scan data may include sensing signals obtained from the even-numbered sensing lines 114B after providing the second driving signal D2, a fourth driving signal D4, The sensing signals obtained from the even-numbered sensing lines 114B, the sixth driving signal D6, and the sensing signals obtained from the even-numbered sensing lines 114B and the eighth And the sensing signals obtained from the even-numbered sensing lines 114B after providing the signal D8.

The control unit 136 may repeatedly obtain the first through fourth scan data to recognize the touch signal or the gesture. At this time, the order of acquiring the first to fourth scan data may be changed, and thus the scope of the present invention is not limited thereto.

As described above, each of the frames is supplied with the driving signals to the odd-numbered or even-numbered driving lines 112A or 112B, and then the sensing signals selectively received from the odd-numbered or even-numbered sensing lines 114A or 114B The power consumption of the touch panel 110 can be greatly reduced.

10 and 11 are schematic views for explaining a touch panel scanning method according to another embodiment of the present invention.

Referring to FIGS. 10 and 11, the controller 136 may divide the touch panel 110 into a plurality of areas, and may select any one of the areas. In particular, the selected area may be used as a touch area (TA), and the driving signals may be selectively provided to the touch area TA.

For example, driving signals may be sequentially provided to the driving lines 112 arranged in the touch area TA as shown in the figure, and odd-numbered or even-numbered sensing lines passing through the touch area TA The sensing signals may be obtained from the sensor 114. [

12 and 13 are schematic views for explaining a touch panel scanning method according to another embodiment of the present invention.

12 and 13, the controller 136 may divide the touch panel 110 into a plurality of areas, and may select any one of the areas. In particular, the selected area may be used as a touch area TA, and the driving signals may be selectively provided to the touch area TA.

For example, driving signals may be sequentially provided to the driving lines 112 passing through the touch area TA as shown in FIG. 2. The driving signals may be sequentially supplied from the sensing lines 114 passing through the touch area TA, Signals can be obtained.

As described above, since the number of the driving signals and / or the number of the sensing signals used for obtaining the scan data constituting each frame can be reduced, the power consumption of the touch panel 110 can be greatly reduced. That is, by selectively using a part of the area of the touch panel 110, the power consumption of the touch panel 110 can be greatly reduced.

The touch panel scanning method according to the embodiments of the present invention as described above can be preferably used while the smart device 100 is operated in the low power mode. In particular, the touch panel scanning method may be used to operate an application program operated in the off state of the display panel 120 or functions of the environment setting program of the smart device 100. [ For example, as shown in FIG. 1, the application program may include a sound reproduction program, a flash on / off program, and the like. The environment setting program may be a WiFi mode, a Bluetooth mode, Mode, a vibration mode, and the like.

For example, when the touch signal or the gesture is input in the partial scan mode of the touch panel 110, the control unit 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.

According to the embodiments of the present invention as described above, in order to obtain scan data constituting one frame, driving signals are selectively provided to the odd-numbered and / or even-numbered driving lines 112A and / or 114B And the sensing signals can be obtained from the odd-numbered or even-numbered sensing lines 114A or 114B.

Alternatively, a part of the touch panel 110 may be used as a touch area TA. Accordingly, the number of driving signals and / or the number of sensing signals used to obtain scan data constituting each frame Can be reduced. As a result, the power consumption of the touch panel 110 can be significantly reduced as compared with the case where the touch panel 110 is operated in the full scan mode.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

100: smart device 110: touch panel
112: driving line 112A: odd-numbered driving line
112B: even-numbered driving line 114: sensing line
114A: odd-numbered sensing line 114B: even-numbered sensing line
120: display panel 130; Touch integrated circuit
132: Touch driver 134: Signal processor
136: control unit 140: application processor

Claims (16)

Sequentially providing driving signals to at least a part of the driving lines of the touch panel; And
And sequentially obtaining sensing signals corresponding to the at least some driving lines from at least a part of the sensing lines of the touch panel to obtain first scan data. The method of claim 1, wherein the first scan data is obtained from odd-numbered sensing lines of the touch panel. 3. The method of claim 2, further comprising: sequentially providing drive signals to at least a portion of the drive lines; And
Further comprising the step of sequentially sensing the sensing signals corresponding to the at least some driving lines from the even-numbered sensing lines of the touch panel to obtain the second scan data. The method of claim 1, wherein the driving signals are provided to odd-numbered driving lines of the touch panel, and the first scan data is obtained from odd-numbered sensing lines of the touch panel. The method of claim 4, further comprising: sequentially supplying driving signals to even-numbered driving lines of the touch panel; And
And sequentially obtaining sensing signals corresponding to the even-numbered driving lines from the odd-numbered sensing lines to acquire second scan data. 6. The method of claim 5, further comprising: sequentially supplying driving signals to the odd-numbered driving lines;
Sequentially detecting sensing signals corresponding to the odd-numbered driving lines from even-numbered sensing lines of the touch panel to obtain third scan data;
Sequentially supplying driving signals to the even-numbered driving lines; And
And sequentially sensing the sensing signals corresponding to the even-numbered driving lines from the even-numbered sensing lines to acquire the fourth scan data. The touch panel scanning method according to claim 1, wherein the touch panel is divided into a plurality of areas, and the driving signals are provided to driving lines passing through any one of the areas. 2. The method of claim 1, wherein the touch panel is divided into a plurality of areas, and the sensing signals are detected from sensing lines passing through any one of the areas. A touch driver for providing driving signals to the driving lines of the touch panel;
A signal processing unit for sensing the sensing signals from the sensing lines of the touch panel; And
And a controller for controlling operations of the touch driver and the signal processor,
The touch driver sequentially provides driving signals to at least a part of the driving lines, and the signal processing unit successively detects sensing signals corresponding to the at least a part of the driving lines from at least a part of the sensing lines, And acquires one scan data. The touch integrated circuit of claim 9, wherein the first scan data is obtained from odd-numbered sensing lines of the touch panel. 11. The method of claim 10, wherein after the first scan data is acquired, the touch driver sequentially provides driving signals to the at least a part of the driving lines, and the signal processing unit receives the driving signals from the even- And sequentially acquires second scan data by sequentially sensing the sensing signals corresponding to at least some of the driving lines. The touch integrated circuit of claim 9, wherein the driving signals are provided to odd-numbered driving lines of the touch panel, and the first scan data is obtained from odd-numbered sensing lines of the touch panel. 13. The method of claim 12, wherein after the first scan data is acquired, the touch driver sequentially provides drive signals to even-numbered drive lines of the touch panel, and the signal processing unit receives the even- Th scan lines and sequentially obtains second scan data by sequentially sensing the sensing signals corresponding to the first to third drive lines. 14. The touch panel of claim 13, wherein the touch driver sequentially provides driving signals to the odd-numbered driving lines after the second scan data is obtained, and the signal processing unit receives the odd-numbered driving lines from the even- Th scan lines in order to obtain third scan data,
After the third scan data is obtained, the touch driver sequentially provides the driving signals to the even-numbered driving lines, and the signal processing unit receives the sensing signals corresponding to the even-numbered driving lines from the even- And sequentially acquires the fourth scan data to obtain the fourth scan data. 10. The touch integrated circuit of claim 9, wherein the touch panel is divided into a plurality of regions, and the driving signals are provided to driving lines passing through any one of the regions. 10. The touch integrated circuit of claim 9, wherein the touch panel is divided into a plurality of regions, and the sensing signals are detected from sensing lines passing through any one of the regions.
KR1020140113799A 2014-08-29 2014-08-29 Method of scanning touch panel and touch integrated circuit for performing the same KR20160026043A (en)

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PCT/KR2015/003756 WO2016032086A1 (en) 2014-08-29 2015-04-15 Touch panel scanning method and touch integrated circuit for performing same

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KR101496844B1 (en) * 2008-07-28 2015-02-27 삼성디스플레이 주식회사 Touch screen display device and driving method of the same
KR100935499B1 (en) * 2009-01-08 2010-01-06 이성호 Touch panel
WO2013183923A1 (en) * 2012-06-04 2013-12-12 크루셜텍 주식회사 Method and apparatus for detecting touch
KR101966861B1 (en) * 2012-07-23 2019-04-09 삼성디스플레이 주식회사 Touch screen panel, touch sensing apparatus having the same and driving method thereof
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