WO2017041322A1 - 触控驱动电路及触控显示面板 - Google Patents

触控驱动电路及触控显示面板 Download PDF

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Publication number
WO2017041322A1
WO2017041322A1 PCT/CN2015/089932 CN2015089932W WO2017041322A1 WO 2017041322 A1 WO2017041322 A1 WO 2017041322A1 CN 2015089932 W CN2015089932 W CN 2015089932W WO 2017041322 A1 WO2017041322 A1 WO 2017041322A1
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Prior art keywords
touch
driving
signal
display panel
chip
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PCT/CN2015/089932
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English (en)
French (fr)
Inventor
李曼
谭小平
郭星灵
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深圳市华星光电技术有限公司
武汉华星光电技术有限公司
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Application filed by 深圳市华星光电技术有限公司, 武汉华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US14/939,080 priority Critical patent/US10261618B2/en
Publication of WO2017041322A1 publication Critical patent/WO2017041322A1/zh

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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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Definitions

  • the present invention relates to the field of display driving, and in particular to a touch driving circuit and a touch display panel.
  • the touch display panel With the increasing intensity of competition in the smartphone market, the touch display panel has ushered in a new round of competition. However, as the resolution of the touch display panel increases, the touch display panel is used for longer and longer scanning time, and the time for touch scanning may not be sufficient, thereby limiting the development of the touch display panel.
  • the touch display panel includes a driving line for transmitting a driving signal and an sensing line for receiving the sensing signal.
  • the touch driving circuit of the existing mutual-capacitive touch display panel can simultaneously transmit different driving signals to all driving lines, and then receive sensing signals of the sensing lines (different driving signals correspond to different sensing signals), and pass the sensing signals.
  • the size determines the position of the touch driving line, determines the position of the touch sensing line by sensing the source of the signal, and finally determines the position of the sensing signal through the touch driving line and the touch sensing line.
  • An object of the present invention is to provide a touch driving circuit and a touch display panel with low manufacturing cost and low manufacturing complexity, so as to solve the problems of high cost and complicated manufacturing of the existing touch driving circuit and the touch display panel. Higher technical issues.
  • the embodiment of the invention provides a touch driving circuit, which is disposed on a corresponding touch display panel, and includes:
  • the touch driving chip is disposed on both sides of the touch display panel for transmitting the preliminary touch driving signal and receiving the touch sensing signal;
  • a plurality of driving lines disposed in the middle of the touch display panel for receiving the touch driving signals
  • a plurality of sensing lines are disposed in the middle of the touch display panel, and configured to generate the touch sensing signal according to the touch driving signal and the touch operation;
  • the preliminary touch driving signal includes a touch data signal and a touch clock signal, and the driving signal encoder converts the touch data signal into a touch driving signal according to the touch clock signal;
  • the touch clock signals corresponding to each of the driving lines are different;
  • the touch driving chip is disposed in the touch display driving integrated chip.
  • the phase difference of the touch clock signals corresponding to the adjacent driving lines is 0.15 microseconds to 0.3 microseconds.
  • the touch display driving integrated chip further includes a display driving chip, and the display driving chip includes a scanning signal generating module for generating a scan signal and a data signal for generating a data signal. Generate modules.
  • the embodiment of the invention further provides a touch driving circuit, which is disposed on the corresponding touch display panel, and includes:
  • the touch driving chip is disposed on both sides of the touch display panel for transmitting the preliminary touch driving signal and receiving the touch sensing signal;
  • a driving line disposed in the middle of the touch display panel for receiving the touch driving signal
  • the sensing line is disposed in the middle of the touch display panel, and is configured to generate the touch sensing signal according to the touch driving signal and the touch operation;
  • a driving lead for transmitting the preliminary touch driving signal to the driving signal encoder
  • a sensing lead for transmitting the touch sensing signal to the touch driving chip
  • the preliminary touch driving signal includes a touch data signal and a touch clock signal
  • the driving signal encoder converts the touch data signal into a touch driving signal according to the touch clock signal.
  • the touch clock signals corresponding to each of the driving lines are different.
  • the phase difference of the touch clock signals corresponding to the adjacent driving lines is 0.15 microseconds to 0.3 microseconds.
  • the touch driving signals corresponding to each of the driving lines are the same.
  • the touch driving chip is disposed in the touch display driving integrated chip.
  • the touch display driving integrated chip further includes a display driving chip, and the display driving chip includes a scanning signal generating module for generating a scan signal and a data signal for generating a data signal. Generate modules.
  • the present invention further provides a touch display panel comprising a glass substrate and a touch driving circuit disposed on the glass substrate; wherein the touch driving circuit comprises:
  • the touch driving chip is disposed on both sides of the touch display panel for transmitting the preliminary touch driving signal and receiving the touch sensing signal;
  • a driving line disposed in the middle of the touch display panel for receiving the touch driving signal
  • the sensing line is disposed in the middle of the touch display panel, and is configured to generate the touch sensing signal according to the touch driving signal and the touch operation;
  • a driving lead for transmitting the preliminary touch driving signal to the driving signal encoder
  • a sensing lead for transmitting the touch sensing signal to the touch driving chip
  • the preliminary touch driving signal includes a touch data signal and a touch clock signal
  • the driving signal encoder converts the touch data signal into a touch driving signal according to the touch clock signal.
  • the touch clock signals corresponding to each of the driving lines are different.
  • the phase difference of the touch clock signals corresponding to the adjacent driving lines is 0.15 microseconds to 0.3 microseconds.
  • the touch driving signals corresponding to each of the driving lines are the same.
  • the touch driving chip is disposed in the touch display driving integrated chip.
  • the touch display driving integrated chip further includes a display driving chip, and the display driving chip includes a scanning signal generating module for generating a scan signal and a data signal for generating a data signal. Generate modules.
  • the touch driving circuit and the touch display panel of the present invention generate a touch driving signal by using the touch data signal and the touch clock signal, thereby saving the touch driving.
  • the manufacturing cost of the circuit reduces the manufacturing complexity of the touch driving circuit, and solves the technical problems of high manufacturing cost and high manufacturing complexity of the existing touch driving circuit and the touch display panel.
  • FIG. 1 is a structural block diagram of a preferred embodiment of a touch driving circuit of the present invention
  • FIG. 2 is a detailed structural diagram of a preferred embodiment of the touch driving circuit of the present invention.
  • FIG. 3 is a timing diagram of a touch clock signal of a preliminary touch driving signal of a touch driving chip according to a preferred embodiment of the touch driving circuit of the present invention.
  • FIG. 1 is a structural block diagram of a preferred embodiment of a touch driving circuit of the present invention
  • FIG. 2 is a detailed structural diagram of a preferred embodiment of the touch driving circuit of the present invention.
  • the touch driving circuit 10 of the preferred embodiment is disposed on the corresponding touch display panel, and includes a touch driving chip 11, a plurality of driving signal encoders 12, a plurality of driving lines 13, a plurality of sensing lines 14, and a plurality of The lead 15 is driven and a plurality of sensing leads 16 are provided.
  • the touch driving chip 11 is disposed on two sides of the touch display panel for transmitting the preliminary touch driving signal and receiving the touch sensing signal.
  • the driving signal encoder 12 is configured to convert the preliminary touch driving signal into a touch driving signal.
  • the driving line 13 is disposed in the middle of the touch display panel for receiving the touch driving signal.
  • the sensing line 14 is disposed in the middle of the touch display panel, and is configured to generate a touch sensing signal according to the touch driving signal and the touch operation.
  • the drive lead 15 is used to transmit the preliminary touch drive signal to the drive signal encoder 12.
  • the sensing lead 16 is used to send the touch sensing signal to the touch driving chip 11 .
  • the preliminary touch driving signal includes a touch data signal and a touch clock signal, and the driving signal encoder 12 converts the touch data signal into a touch driving signal according to the touch clock signal.
  • FIG. 3 is a timing diagram of a touch clock signal of a preliminary touch driving signal of a touch driving chip according to a preferred embodiment of the touch driving circuit of the present invention.
  • the touch driving chip 11 of the touch driving circuit 10 generates a preliminary touch driving signal, and the preliminary touch driving signal includes a touch data signal for indicating a driving data signal and a touch clock signal for indicating a driving clock signal.
  • the touch driving chip 11 then transmits the touch data signal and the touch clock signal to the corresponding driving leads 15 and transmits them to the driving signal encoder 12 through the driving leads 15. As shown in FIG. 3, the touch data signal and the touch clock signal are separately transmitted to the corresponding driving signal encoder 12.
  • the driving signal encoder 12 then converts the touch data signal into a touch driving signal according to the touch clock signal.
  • a driving signal encoder 12 can use the second touch clock signal of each touch scan as a conversion signal, that is, receive the second touch clock signal, that is, convert the corresponding touch data signal into a touch driving signal. signal. Since the touch clock signals corresponding to each of the driving lines 13 are different, the transmission time of the touch driving signals sent by the driving signal encoder 12 to each of the driving lines 13 is different, so that the different driving lines 13 can be better distinguished.
  • Touch drive signal For details, please refer to the touch driving signals TX1, TX2, TX3, ..., TXn-1, TXn in FIG.
  • the phase difference of the touch clock signals corresponding to the adjacent driving lines 13 should be set between 0.15 microseconds and 0.3 micrometers. If the phase difference is set too small, the touch drive signal corresponding to the adjacent drive line 13 may not be distinguished; if the phase difference is set too large, the accuracy of the touch drive scan may be affected, that is, the same The number of driving lines 13 driven by the touch driving chip 11 is small.
  • the waveforms of the touch driving signals corresponding to each driving line 13 may be the same, as shown in FIG. 3, which can further reduce the touch.
  • the driving signal encoder 12 then sends the touch driving signal to the driving line 13 disposed in the middle of the touch display panel, so that the sensing line 14 disposed in the middle of the touch display panel can be displayed according to the touch driving signal and the touch display.
  • the touch operation on the panel generates a touch sensing signal corresponding to the touch operation.
  • the touch sensing signal is transmitted to the touch driving chip 11 through the sensing line 14 and the sensing lead 16 , and the touch driving chip 11 can receive the time (corresponding to the driving line) and the touch sensing signal according to the touch sensing signal.
  • the corresponding sensing line 14 determines the location of the touch operation.
  • the touch driving circuit of the preferred embodiment generates the touch driving signal by using the touch data signal and the touch clock signal, and does not need to set a plurality of pins to generate touch driving signals of different driving lines. Therefore, the touch driving chip of the touch driving circuit has lower manufacturing cost, and the touch driving chip of the touch driving circuit has lower fabrication complexity.
  • the touch display driver integrated chip (TDDI, touch LCD Driver
  • the integration includes a display driving chip including a scan signal generating module for generating a scan signal and a data signal generating module for generating a data signal. Therefore, the touch display driving integrated chip is larger in size. If the touch driving chip is disposed in the touch display driving integrated chip, the size problem of the touch display driving integrated chip can be better solved, and the advantage of low production cost of the touch display driving integrated chip can be better utilized.
  • the present invention further provides a touch display panel comprising a glass substrate and a touch driving circuit disposed on the glass substrate, the touch driving circuit comprising a touch driving chip, a plurality of driving signal encoders, and the like Drive lines, multiple sense lines, multiple drive leads, and multiple sense leads.
  • the touch driving chip is disposed on two sides of the touch display panel, and is configured to send a preliminary touch driving signal and receive the touch sensing signal.
  • the driving signal encoder is used to convert the preliminary touch driving signal into a touch driving signal.
  • the driving line is disposed in the middle of the touch display panel for receiving the touch driving signal.
  • the sensing line is disposed in the middle of the touch display panel, and is configured to generate a touch sensing signal according to the touch driving signal and the touch operation.
  • the drive leads are used to send the preliminary touch drive signals to the drive signal encoder.
  • the sensing lead is used to send the touch sensing signal to the touch driving chip.
  • the preliminary touch driving signal includes a touch data signal and a touch clock signal, and the driving signal encoder converts the touch data signal into a touch driving signal according to the touch clock signal.
  • the touch clock signals corresponding to each of the driving lines are different; the phase difference of the touch clock signals corresponding to the adjacent driving lines is 0.15 microseconds to 0.3 microseconds.
  • the touch driving signals corresponding to each driving line are the same.
  • the touch driving chip is disposed in the touch display driving integrated chip.
  • the specific working principle of the touch display panel of the preferred embodiment is the same as or similar to that of the preferred embodiment of the touch driving circuit.
  • the touch driving circuit and the touch display panel of the present invention generate a touch driving signal by using the touch data signal and the touch clock signal, thereby saving the manufacturing cost of the touch driving circuit and reducing the manufacturing complexity of the touch driving circuit.
  • the invention solves the technical problems of high production cost and high production complexity of the existing touch driving circuit and the touch display panel.

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  • 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)
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Abstract

一种触控驱动电路（10）及触控显示面板，该触控驱动电路（10）设置在相应的触控显示面板上，其包括触控驱动芯片（11）、驱动信号编码器（12）、驱动线（13）、感应线（14）、驱动引线（15）以及感应引线（16）；其中预备触控驱动信号包括触控数据信号以及触控时钟信号，驱动信号编码器（12）根据触控时钟信号，将触控数据信号转换为触控驱动信号（TX1、TX2 、TX3......TXn-1、TXn）。

Description

触控驱动电路及触控显示面板 技术领域
本发明涉及显示驱动领域，特别是涉及一种触控驱动电路及触控显示面板。
 背景技术
随着智能手机市场竞争的激烈化程度的日渐加深，触控显示面板迎来了新一轮的竞逐。但是随着触控显示面板的分辨率的提高，触控显示面板用于显示扫描的时间越来越长，用于触控扫描的时间可能会不够，从而限制了触控显示面板的发展。
触控显示面板包括用于发送驱动信号的驱动线以及用于接收感应信号的感应线。现有的互容式触控显示面板的触控驱动电路可以同时对所有的驱动线发送不同的驱动信号，然后接收感应线的感应信号（不同的驱动信号对应不同的感应信号），通过感应信号的大小确定触摸驱动线的位置，通过感应信号的来源确定触摸感应线的位置，最后通过触摸驱动线以及触摸感应线确定感应信号的位置。这样可以有效的减少触控扫描的时间，但是需要在触控驱动电路上设置多个驱动信号发送管脚，不利于触控驱动电路的小型化以及低成本；并且由于触摸驱动线对应的走线的增加，提高了触控驱动电路的制作复杂度。
故，有必要提供一种触控驱动电路及触控显示面板，以解决现有技术所存在的问题。
 技术问题
本发明的目的在于提供一种制作成本低且制作复杂度也低的触控驱动电路及触控显示面板；以解决现有的触控驱动电路及触控显示面板的制作成本较高且制作复杂度较高的技术问题。
 技术解决方案
本发明实施例提供一种触控驱动电路，设置在相应的触控显示面板上，其包括：
触控驱动芯片，设置在所述触控显示面板的两侧，用于发送预备触控驱动信号以及接收触控感应信号；
多个驱动信号编码器，用于将所述预备触控驱动信号转换为触控驱动信号；
多个驱动线，设置在所述触控显示面板的中间，用于接收所述触控驱动信号；
多个感应线，设置在所述触控显示面板的中间，用于根据所述触控驱动信号以及触控操作，生成所述触控感应信号；
多个驱动引线，用于将所述预备触控驱动信号发送至所述驱动信号编码器；以及
多个感应引线，用于将所述触控感应信号发送至所述触控驱动芯片；
其中所述预备触控驱动信号包括触控数据信号以及触控时钟信号，所述驱动信号编码器根据所述触控时钟信号，将所述触控数据信号转换为触控驱动信号；
其中每个所述驱动线对应的所述触控时钟信号不同；
其中所述触控驱动芯片设置在触摸显示驱动集成芯片中。
在本发明所述的触控驱动电路中，相邻的所述驱动线对应的所述触控时钟信号的相位差为0.15微秒至0.3微秒。
在本发明所述的触控驱动电路中，所述触摸显示驱动集成芯片还包括显示驱动芯片，所述显示驱动芯片包括用于生成扫描信号的扫描信号生成模块以及用于生成数据信号的数据信号生成模块。
本发明实施例还提供一种触控驱动电路，设置在相应的触控显示面板上，其包括：
触控驱动芯片，设置在所述触控显示面板的两侧，用于发送预备触控驱动信号以及接收触控感应信号；
多个驱动信号编码器，用于将所述预备触控驱动信号转换为触控驱动信号；
驱动线，设置在所述触控显示面板的中间，用于接收所述触控驱动信号；
感应线，设置在所述触控显示面板的中间，用于根据所述触控驱动信号以及触控操作，生成所述触控感应信号；
驱动引线，用于将所述预备触控驱动信号发送至所述驱动信号编码器；以及
感应引线，用于将所述触控感应信号发送至所述触控驱动芯片；
其中所述预备触控驱动信号包括触控数据信号以及触控时钟信号，所述驱动信号编码器根据所述触控时钟信号，将所述触控数据信号转换为触控驱动信号。
在本发明所述的触控驱动电路中，每个所述驱动线对应的所述触控时钟信号不同。
在本发明所述的触控驱动电路中，相邻的所述驱动线对应的所述触控时钟信号的相位差为0.15微秒至0.3微秒。
在本发明所述的触控驱动电路中，每个所述驱动线对应的所述触控驱动信号相同。
在本发明所述的触控驱动电路中，所述触控驱动芯片设置在触摸显示驱动集成芯片中。
在本发明所述的触控驱动电路中，所述触摸显示驱动集成芯片还包括显示驱动芯片，所述显示驱动芯片包括用于生成扫描信号的扫描信号生成模块以及用于生成数据信号的数据信号生成模块。
本发明还提供一种触控显示面板，其包括玻璃基板以及设置在所述玻璃基板上的触控驱动电路；其中所述触控驱动电路包括：
触控驱动芯片，设置在所述触控显示面板的两侧，用于发送预备触控驱动信号以及接收触控感应信号；
多个驱动信号编码器，用于将所述预备触控驱动信号转换为触控驱动信号；
驱动线，设置在所述触控显示面板的中间，用于接收所述触控驱动信号；
感应线，设置在所述触控显示面板的中间，用于根据所述触控驱动信号以及触控操作，生成所述触控感应信号；
驱动引线，用于将所述预备触控驱动信号发送至所述驱动信号编码器；以及
感应引线，用于将所述触控感应信号发送至所述触控驱动芯片；
其中所述预备触控驱动信号包括触控数据信号以及触控时钟信号，所述驱动信号编码器根据所述触控时钟信号，将所述触控数据信号转换为触控驱动信号。
在本发明所述的触控显示面板中，每个所述驱动线对应的所述触控时钟信号不同。
在本发明所述的触控显示面板中，相邻的所述驱动线对应的所述触控时钟信号的相位差为0.15微秒至0.3微秒。
在本发明所述的触控显示面板中，每个所述驱动线对应的所述触控驱动信号相同。
在本发明所述的触控显示面板中，所述触控驱动芯片设置在触摸显示驱动集成芯片中。
在本发明所述的触控显示面板中，所述触摸显示驱动集成芯片还包括显示驱动芯片，所述显示驱动芯片包括用于生成扫描信号的扫描信号生成模块以及用于生成数据信号的数据信号生成模块。
 有益效果
相较于现有的触控驱动电路及触控显示面板，本发明的触控驱动电路及触控显示面板通过触控数据信号以及触控时钟信号来生成触控驱动信号，节省了触控驱动电路的制作成本，且降低了触控驱动电路的制作复杂度；解决了现有的触控驱动电路及触控显示面板的制作成本较高且制作复杂度较高的技术问题。
 附图说明
图1为本发明的触控驱动电路的优选实施例的结构框图；
图2为本发明的触控驱动电路的优选实施例的具体结构图；
图3为本发明的触控驱动电路的优选实施例的触控驱动芯片的预备触控驱动信号的触控时钟信号的时序示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。
在图中，结构相似的单元是以相同标号表示。
请参照图1和图2，图1为本发明的触控驱动电路的优选实施例的结构框图，图2为本发明的触控驱动电路的优选实施例的具体结构图。本优选实施例的触控驱动电路10设置在相应的触控显示面板上，其包括触控驱动芯片11、多个驱动信号编码器12、多个驱动线13、多个感应线14、多个驱动引线15以及多个感应引线16。触控驱动芯片11设置在触控显示面板的两侧，用于发送预备触控驱动信号以及接收触控感应信号。驱动信号编码器12用于将预备触控驱动信号转换为触控驱动信号。驱动线13设置在触控显示面板的中间，用于接收触控驱动信号。感应线14设置在触控显示面板的中间，用于根据触控驱动信号以及触控操作，生成触控感应信号。驱动引线15用于将预备触控驱动信号发送至驱动信号编码器12。感应引线16用于将触控感应信号发送至触控驱动芯片11。其中预备触控驱动信号包括触控数据信号以及触控时钟信号，驱动信号编码器12根据触控时钟信号，将触控数据信号转换为触控驱动信号。
下面根据图2以及图3详细说明本优选实施例的触控驱动电路的具体工作原理。图3为本发明的触控驱动电路的优选实施例的触控驱动芯片的预备触控驱动信号的触控时钟信号的时序示意图。
首先触控驱动电路10的触控驱动芯片11生成预备触控驱动信号，该预备触控驱动信号包括用于表示驱动数据信号的触控数据信号以及用于表示驱动时钟信号的触控时钟信号。然后触控驱动芯片11将上述触控数据信号以及触控时钟信号传输至相应的驱动引线15上，并通过驱动引线15发送至驱动信号编码器12上。如图3中，触控数据信号以及触控时钟信号分开传输到相应的驱动信号编码器12上。
随后驱动信号编码器12根据触控时钟信号，将触控数据信号转换为触控驱动信号。如某个驱动信号编码器12可将每次触控扫描的第二个触控时钟信号作为转换信号，即接收到第二个触控时钟信号，即将相应的触控数据信号转换为触控驱动信号。由于每个驱动线13对应的触控时钟信号不同，因此驱动信号编码器12发送给每个驱动线13的触控驱动信号的发送时间是不同的，因此可以较好的区分不同驱动线13的触控驱动信号。具体请参照图3中的触控驱动信号TX1、TX2、TX3……TXn-1、TXn。
这里为了保证区分不同的触控驱动信号，相邻的驱动线13对应的触控时钟信号的相位差应设置在0.15微秒至0.3微米之间。如该相位差设置的太小，可能会导致无法区分相邻驱动线13对应的触控驱动信号；如该相位差设置的太大，可能会对触控驱动扫描的精度造成影响，即在相同时间内触控驱动芯片11驱动的驱动线13的数量较少。
由于这里通过触控驱动信号的发送时间来区分不同的触控驱动信号，因此每个驱动线13对应的触控驱动信号的波形可以是相同的，如图3所示，这样可以进一步降低触控驱动电路10的制作成本。
然后驱动信号编码器12将触控驱动信号发送至设置在触控显示面板的中间的驱动线13上，这样设置在触控显示面板的中间的感应线14可以根据触控驱动信号以及触控显示面板上的触控操作，生成与该触控操作对应的触控感应信号。
最后该触控感应信号通过感应线14以及感应引线16传输至触控驱动芯片11上，触控驱动芯片11可根据该触控感应信号的接收时间（与驱动线对应）以及该触控感应信号对应的感应线14确定触控操作的位置。
这样即完成了本优选实施例的触控驱动电路10的触控驱动以及触控感应过程。
由于本优选实施例的触控驱动电路通过触控数据信号以及触控时钟信号来生成触控驱动信号，而不需要设置多个管脚来生成不同驱动线的触控驱动信号。因此触控驱动电路的触控驱动芯片的制作成本更低，且触控驱动电路的触控驱动芯片的制作复杂度也较低。
同时由于触摸显示驱动集成芯片（TDDI，touch LCD Driver integration）包括显示驱动芯片以及触控驱动芯片，其中显示驱动芯片包括用于生成扫描信号的扫描信号生成模块以及用于生成数据信号的数据信号生成模块。因此触摸显示驱动集成芯片的体积更大。如将该触控驱动芯片设置在触摸显示驱动集成芯片中，则可较好的解决触摸显示驱动集成芯片的尺寸问题，可以更好的发挥触摸显示驱动集成芯片的低制作成本的优势。
本发明还提供一种触控显示面板，该触控显示面板包括玻璃基板以及设置在玻璃基板上的触控驱动电路，该触控驱动电路包括触控驱动芯片、多个驱动信号编码器、多个驱动线、多个感应线、多个驱动引线以及多个感应引线。触控驱动芯片设置在触控显示面板的两侧，用于发送预备触控驱动信号以及接收触控感应信号。驱动信号编码器用于将预备触控驱动信号转换为触控驱动信号。驱动线设置在触控显示面板的中间，用于接收触控驱动信号。感应线设置在触控显示面板的中间，用于根据触控驱动信号以及触控操作，生成触控感应信号。驱动引线用于将预备触控驱动信号发送至驱动信号编码器。感应引线用于将触控感应信号发送至触控驱动芯片。其中预备触控驱动信号包括触控数据信号以及触控时钟信号，驱动信号编码器根据触控时钟信号，将触控数据信号转换为触控驱动信号。
优选的，每个驱动线对应的触控时钟信号不同；相邻的驱动线对应的触控时钟信号的相位差为0.15微秒至0.3微秒。
优选的，每个驱动线对应的触控驱动信号相同。
优选的，所述触控驱动芯片设置在触摸显示驱动集成芯片中。
本优选实施例的触控显示面板的具体工作原理与上述的触控驱动电路的优选实施例中的相关描述相同或相似，具体请参见上述触控驱动电路的优选实施例中的相关描述。
本发明的触控驱动电路及触控显示面板通过触控数据信号以及触控时钟信号来生成触控驱动信号，节省了触控驱动电路的制作成本，且降低了触控驱动电路的制作复杂度；解决了现有的触控驱动电路及触控显示面板的制作成本较高且制作复杂度较高的技术问题。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (15)

  1. 一种触控驱动电路，设置在相应的触控显示面板上，其包括：
    触控驱动芯片，设置在所述触控显示面板的两侧，用于发送预备触控驱动信号以及接收触控感应信号；
    多个驱动信号编码器，用于将所述预备触控驱动信号转换为触控驱动信号；
    多个驱动线，设置在所述触控显示面板的中间，用于接收所述触控驱动信号；
    多个感应线，设置在所述触控显示面板的中间，用于根据所述触控驱动信号以及触控操作，生成所述触控感应信号；
    多个驱动引线，用于将所述预备触控驱动信号发送至所述驱动信号编码器；以及
    多个感应引线，用于将所述触控感应信号发送至所述触控驱动芯片；
    其中所述预备触控驱动信号包括触控数据信号以及触控时钟信号，所述驱动信号编码器根据所述触控时钟信号，将所述触控数据信号转换为触控驱动信号；
    其中每个所述驱动线对应的所述触控时钟信号不同；
    其中所述触控驱动芯片设置在触摸显示驱动集成芯片中。
  2. 根据权利要求1所述的触控驱动电路，其中相邻的所述驱动线对应的所述触控时钟信号的相位差为0.15微秒至0.3微秒。
  3. 根据权利要求1所述的触控驱动电路，其中所述触摸显示驱动集成芯片还包括显示驱动芯片，所述显示驱动芯片包括用于生成扫描信号的扫描信号生成模块以及用于生成数据信号的数据信号生成模块。
  4. 一种触控驱动电路，设置在相应的触控显示面板上，其包括：
    触控驱动芯片，设置在所述触控显示面板的两侧，用于发送预备触控驱动信号以及接收触控感应信号；
    多个驱动信号编码器，用于将所述预备触控驱动信号转换为触控驱动信号；
    多个驱动线，设置在所述触控显示面板的中间，用于接收所述触控驱动信号；
    多个感应线，设置在所述触控显示面板的中间，用于根据所述触控驱动信号以及触控操作，生成所述触控感应信号；
    多个驱动引线，用于将所述预备触控驱动信号发送至所述驱动信号编码器；以及
    多个感应引线，用于将所述触控感应信号发送至所述触控驱动芯片；
    其中所述预备触控驱动信号包括触控数据信号以及触控时钟信号，所述驱动信号编码器根据所述触控时钟信号，将所述触控数据信号转换为触控驱动信号。
  5. 根据权利要求4所述的触控驱动电路，其中每个所述驱动线对应的所述触控时钟信号不同。
  6. 根据权利要求5所述的触控驱动电路，其中相邻的所述驱动线对应的所述触控时钟信号的相位差为0.15微秒至0.3微秒。
  7. 根据权利要求4所述的触控驱动电路，其中每个所述驱动线对应的所述触控驱动信号相同。
  8. 根据权利要求4所述的触控驱动电路，其中所述触控驱动芯片设置在触摸显示驱动集成芯片中。
  9. 根据权利要求8所述的触控驱动电路，其中所述触摸显示驱动集成芯片还包括显示驱动芯片，所述显示驱动芯片包括用于生成扫描信号的扫描信号生成模块以及用于生成数据信号的数据信号生成模块。
  10. 一种触控显示面板，其包括玻璃基板以及设置在所述玻璃基板上的触控驱动电路；其中所述触控驱动电路包括：
    触控驱动芯片，设置在所述触控显示面板的两侧，用于发送预备触控驱动信号以及接收触控感应信号；
    多个驱动信号编码器，用于将所述预备触控驱动信号转换为触控驱动信号；
    驱动线，设置在所述触控显示面板的中间，用于接收所述触控驱动信号；
    感应线，设置在所述触控显示面板的中间，用于根据所述触控驱动信号以及触控操作，生成所述触控感应信号；
    驱动引线，用于将所述预备触控驱动信号发送至所述驱动信号编码器；以及
    感应引线，用于将所述触控感应信号发送至所述触控驱动芯片；
    其中所述预备触控驱动信号包括触控数据信号以及触控时钟信号，所述驱动信号编码器根据所述触控时钟信号，将所述触控数据信号转换为触控驱动信号。
  11. 根据权利要求10所述的触控显示面板，其中每个所述驱动线对应的所述触控时钟信号不同。
  12. 根据权利要求11所述的触控显示面板，其中相邻的所述驱动线对应的所述触控时钟信号的相位差为0.15微秒至0.3微秒。
  13. 根据权利要求10所述的触控显示面板，其中每个所述驱动线对应的所述触控驱动信号相同。
  14. 根据权利要求10所述的触控显示面板，其中所述触控驱动芯片设置在触摸显示驱动集成芯片中。
  15. 根据权利要求14所述的触控显示面板，其中所述触摸显示驱动集成芯片还包括显示驱动芯片，所述显示驱动芯片包括用于生成扫描信号的扫描信号生成模块以及用于生成数据信号的数据信号生成模块。
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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107562296B (zh) * 2017-08-31 2020-11-13 Oppo广东移动通信有限公司 阵列基板、显示面板和电子设备
CN110764639A (zh) * 2018-07-27 2020-02-07 京东方科技集团股份有限公司 功能面板及其制造方法、终端

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110267283A1 (en) * 2010-04-30 2011-11-03 Shih Chang Chang Kickback Voltage Equalization
CN102707480A (zh) * 2012-06-28 2012-10-03 旭曜科技股份有限公司 内嵌式多点触控液晶显示面板系统
CN102929460A (zh) * 2012-08-31 2013-02-13 友达光电股份有限公司 触控显示装置及显示驱动方法
CN103823589A (zh) * 2014-01-24 2014-05-28 京东方科技集团股份有限公司 一种触摸电路及驱动方法、触摸显示装置
US20140225840A1 (en) * 2013-02-14 2014-08-14 Apple Inc. Touchscreen system having on-panel touch driver circuitry
CN104793795A (zh) * 2015-04-09 2015-07-22 昆山龙腾光电有限公司 触控感应线路及触控显示面板

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8823657B2 (en) * 2010-09-07 2014-09-02 Apple Inc. Master/slave control of touch sensing
US20140204053A1 (en) * 2013-01-22 2014-07-24 Pixart Imaging Inc. Concurrent driving capacitive touch sensing device and transmission system
CN104834427B (zh) * 2015-05-27 2017-11-14 京东方科技集团股份有限公司 触控驱动电路及其驱动方法、阵列基板及触控显示装置
CN104866141B (zh) * 2015-06-10 2018-03-23 京东方科技集团股份有限公司 触控驱动电路、显示装置及其驱动方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110267283A1 (en) * 2010-04-30 2011-11-03 Shih Chang Chang Kickback Voltage Equalization
CN102707480A (zh) * 2012-06-28 2012-10-03 旭曜科技股份有限公司 内嵌式多点触控液晶显示面板系统
CN102929460A (zh) * 2012-08-31 2013-02-13 友达光电股份有限公司 触控显示装置及显示驱动方法
US20140225840A1 (en) * 2013-02-14 2014-08-14 Apple Inc. Touchscreen system having on-panel touch driver circuitry
CN103823589A (zh) * 2014-01-24 2014-05-28 京东方科技集团股份有限公司 一种触摸电路及驱动方法、触摸显示装置
CN104793795A (zh) * 2015-04-09 2015-07-22 昆山龙腾光电有限公司 触控感应线路及触控显示面板

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