WO2016192151A1 - 触控信号的扫描方法 - Google Patents

触控信号的扫描方法 Download PDF

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Publication number
WO2016192151A1
WO2016192151A1 PCT/CN2015/082266 CN2015082266W WO2016192151A1 WO 2016192151 A1 WO2016192151 A1 WO 2016192151A1 CN 2015082266 W CN2015082266 W CN 2015082266W WO 2016192151 A1 WO2016192151 A1 WO 2016192151A1
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Prior art keywords
signal
touch
line
scanning
scan pulse
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English (en)
French (fr)
Inventor
谢剑星
左清成
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Priority to US14/771,504 priority Critical patent/US20160357302A1/en
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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

Definitions

  • the present invention relates to the field of touch display technologies, and in particular, to a method for scanning a touch signal.
  • LCDs liquid crystal displays
  • Various consumer electronic products such as digital assistants, digital cameras, notebook computers, and desktop computers have become mainstream in display devices.
  • the touch panel provides a new human-computer interaction interface that is more direct and user-friendly.
  • the touch panel and the flat display device are integrated to form a touch display device, which can enable the flat display device to have a touch function, and can perform input through a finger, a stylus, etc., and the operation is more intuitive and simple.
  • liquid crystal displays and touch panels have been widely accepted and used, and replace conventional cathode ray tubes and physical key input devices, respectively.
  • the original touch display device usually uses a separate touch screen, that is, the touch panel is separately manufactured from the liquid crystal panel, and then assembled together.
  • the touch display device made by using such a manufacturing scheme is relatively thick, and more glass and film are added, and the transmittance and contrast of the liquid crystal panel are also significantly reduced, and the cost is high due to separate manufacturing, and the market is competitive. The power is falling.
  • a touch display device with a lighter weight, better display effect and lower cost is provided, and an embedded touch technology emerges as the times require.
  • the so-called embedded touch technology combines a touch panel and a liquid crystal panel. As one, and the touch panel function is embedded in the liquid crystal panel, the liquid crystal panel has the functions of displaying and sensing the touch input at the same time.
  • the existing embedded touch technology is mainly divided into two types: one is that the touch circuit is on the cell type (On Cell), and the other is that the touch circuit is in the cell type (In Cell).
  • On Cell the cell type
  • In Cell the cell type
  • the existing In Cell type touch panel adopts a time-sharing driving method, that is, the display driver and the touch driver are time-divisionally independent, in one cycle (usually one).
  • the scanning operation of the display signal is performed, and then the scanning operation of the touch signal is performed during the remaining time period of the period, and the scanning of the mutual-capacitive touch signal is generally performed line by line.
  • the resolution of the product increases, the time required to display the signal scan becomes longer and longer, and the corresponding touch signal is scanned.
  • the required scan time is compressed, and the scanning time of the touch signal is insufficient, which limits the development of the product.
  • An object of the present invention is to provide a method for scanning a touch signal, which can reduce the time taken by the In Cell type touch display device to scan the touch signal, increase the scanning time of the display signal, and promote the In Cell type touch display device. To a higher resolution.
  • the present invention provides a method for scanning a touch signal, including the following steps:
  • Step 1 providing a touch display panel
  • the touch display panel includes m horizontal driving lines arranged in parallel with each other and sequentially arranged, and n vertical receiving lines arranged in parallel with each other, wherein m and n are integers greater than 2;
  • Step 2 using a signal generator to simultaneously generate a different scan pulse signal to simultaneously scan the corresponding a drive lines, wherein 2 ⁇ a ⁇ m, corresponding to the falling edge of the scan pulse signal of the previous drive line and corresponding to The rising edge of the scan pulse signal of the next driving line is simultaneously generated, and each scanning pulse signal is correspondingly encoded;
  • each receive line When a scan pulse signal simultaneously scans a drive line, each receive line synchronously receives all scan pulse signals provided by a drive line, so that each receive line receives a receive signal of the same semaphore. ;
  • Step 3 using a control chip to decode the received signals received by each of the receiving lines, and obtain codes of different scan pulse signals corresponding to different signal segments in the received signal;
  • Step 4 When the finger touches the touch display panel, it is determined by the coding of the signal segment that the signal amount becomes small that the finger touches the drive line that provides the scan pulse signal corresponding to the code, and the signal with the signal amount becomes smaller.
  • the receiving line corresponding to the received signal of the segment obtains the touch position.
  • step 2 of the positioning method of the touch signal scanning the scan pulse signal corresponding to the ith driving line is encoded as i, where 1 ⁇ i ⁇ a.
  • the sum of the pulse durations of all the scan pulse signals is equal to the pulse duration of the received signal.
  • step 3 of the scanning method of the touch signal the signal segment corresponding to the scan pulse signal encoded as i is encoded as i in chronological order.
  • the specific process of the step 4 of the scanning method of the touch signal is: when the finger touches the intersection of the ith driving line and the yth receiving line, where 1 ⁇ y ⁇ n, the yth receiving line Connect
  • the signal amount corresponding to the signal segment encoded as i will become smaller, and the code i of the signal segment whose signal amount becomes smaller in the received signal is determined, and it is determined that the finger touches the scan pulse signal corresponding to the code i.
  • the i driving lines in combination with the receiving signal having the signal segment having a small signal amount, correspond to the yth receiving line, and the touch position is obtained at the intersection of the ith driving line and the yth receiving line.
  • the driving line and the receiving line are both formed on the common electrode layer.
  • the driving line is formed on a common electrode layer, and the receiving line is formed in another metal layer different from the common electrode layer.
  • the scan pulse signal is a high frequency signal.
  • the touch display panel is an In Cell type touch display panel.
  • the touch display panel is a mutual capacitive touch display panel.
  • the invention also provides a scanning method for a touch signal, comprising the following steps:
  • Step 1 providing a touch display panel
  • the touch display panel includes m horizontal driving lines arranged in parallel with each other and sequentially arranged, and n vertical receiving lines arranged in parallel with each other, wherein m and n are integers greater than 2;
  • Step 2 using a signal generator to simultaneously generate a different scan pulse signal to simultaneously scan the corresponding a drive lines, wherein 2 ⁇ a ⁇ m, corresponding to the falling edge of the scan pulse signal of the previous drive line and corresponding to The rising edge of the scan pulse signal of the next driving line is simultaneously generated, and each scanning pulse signal is correspondingly encoded;
  • each receive line When a scan pulse signal simultaneously scans a drive line, each receive line synchronously receives all scan pulse signals provided by a drive line, so that each receive line receives a receive signal of the same semaphore. ;
  • Step 3 using a control chip to decode the received signal received by each receiving line to obtain a code of different scan pulse signals corresponding to different signal segments in the received signal;
  • Step 4 When the finger touches the touch display panel, it is determined by the coding of the signal segment that the signal amount becomes small that the finger touches the drive line that provides the scan pulse signal corresponding to the code, and the signal with the signal amount becomes smaller.
  • the receiving line corresponding to the received signal of the segment obtains the touch position;
  • the scan pulse signal corresponding to the ith driving line is encoded as i, where 1 ⁇ i ⁇ a;
  • the touch display panel is an In Cell type touch display panel
  • the touch display panel is a mutual capacitive touch display panel.
  • the present invention provides a method for scanning a touch signal, which uses different scanning pulse signals corresponding to a plurality of driving lines to simultaneously scan, and performs corresponding encoding on each scanning pulse signal; At the same time, each of the plurality of receiving lines synchronously receives all the scanning pulse signals provided by the plurality of driving lines, and then uses the control chip to receive the plurality of receiving signals.
  • Each received signal in the line is decoded to determine the source of different signal segments in the received signal; when the finger is touched, the code segment of the signal segment where the semaphore becomes smaller determines that the finger touch is provided correspondingly
  • the driving line of the encoded scan pulse signal combined with the receiving line corresponding to the receiving signal having the signal segment with a small signal amount, obtains the position where the touch is located, and can reduce the occupation of the touch signal by the In Cell type touch display device.
  • the time to increase the scanning time of the display signal causes the In Cell type touch display device to develop to a higher resolution.
  • FIG. 1 is a schematic diagram of a touch display panel of a method for scanning a touch signal according to the present invention
  • FIG. 2 is a waveform diagram of a scan pulse signal of a method for scanning a touch signal according to the present invention
  • FIG. 3 is a waveform diagram of a received signal of a method for scanning a touch signal according to the present invention.
  • FIG. 4 is a waveform diagram of a received signal when a touch method is applied to the touch signal of the present invention
  • FIG. 5 is a flowchart of a method for scanning a touch signal according to the present invention.
  • the present invention provides a method for scanning a touch signal, including the following steps:
  • Step 1 As shown in FIG. 1, a touch display panel is provided.
  • the touch display panel includes m horizontal drive lines Tx(1) to Tx(m) arranged in parallel and sequentially arranged, and n vertical receiving lines Rx(1) to Rx(n) arranged in parallel with each other and sequentially arranged. ), where m and n are positive integers greater than two.
  • the driving lines Tx(1) to Tx(m) and the receiving lines Rx(1) to Rx(n) may be formed in the same layer.
  • the receiving lines Rx(1) to Rx(n) are formed on the common electrode layer.
  • the driving lines Tx(1) to Tx(m) and the receiving lines Rx(1) to Rx(n) may be formed in different layers.
  • the driving lines Tx(1) to Tx(m) are formed in The common electrode layer, the receiving lines Rx(1) to Rx(n) are formed in another metal layer different from the common electrode layer.
  • the touch display panel is an In Cell type touch display panel; at the same time, the touch display surface
  • the board is a mutual capacitive touch display panel.
  • Step 2 using a signal generator to simultaneously generate a scan pulse signal different from a to simultaneously scan the corresponding a drive lines, wherein 2 ⁇ a ⁇ m, corresponding to the falling edge of the scan pulse signal of the previous drive line and corresponding The rising edge of the scan pulse signal of the next drive line is simultaneously generated, and each scan pulse signal is correspondingly encoded.
  • the scan pulse signal corresponding to the first drive line Tx(1) is encoded as 1
  • the scan pulse signal corresponding to the second drive line Tx(2) is encoded as 2 until it corresponds to the
  • the scan pulse signal of the a drive line Tx(a) is coded as a, that is, the scan pulse signal corresponding to the i-th drive line Tx(i) is encoded as i, where 1 ⁇ i ⁇ a;
  • each of the plurality of receive lines Rx(1) to Rx(n) is synchronously received. All of the scan pulse signals supplied from the a drive lines Tx(1) to Tx(a) cause each of the plurality of receive lines Rx(1) to Rx(n) to receive a received signal of the same semaphore.
  • the scan pulse signal is a high frequency signal; the sum of the pulse durations of all the scan pulse signals in the step 2 is equal to the pulse duration of the received signal.
  • the value of a can be selected according to the operation and control capabilities of the internal control chip of the touch display panel. It is assumed that the touch display panel comprises a total of 30 horizontal drive lines arranged in parallel and arranged in sequence, that is, the value of m is 30, and the signal generator can simultaneously generate two different scan pulse signals to simultaneously drive two drive lines. Simultaneous scanning, that is, the value of a is 2, and all 30 driving lines are scanned in 15 times. Compared with the prior art progressive scanning, the scanning time is shortened to 1/2; the signal generator can also be used.
  • the scanning time is shortened to 1/5 of the original; the signal generator can simultaneously generate 10 different scanning pulse signals to simultaneously scan 10 driving lines at the same time, that is, the value of a is 10, and the number of 3 times is 30
  • the scan time is shortened to 1/10 compared to the prior art progressive scan; the signal generator can even generate 30 different scan pulse signals simultaneously to simultaneously simultaneously drive 30 drive lines.
  • Scan that is, the value of a is 30, 1 time 30 all the scanned driving lines, compared to the prior art progressive scan, the scan time is shortened to 1/30 the original.
  • Step 3 Decode the received signal received by each of the plurality of receiving lines Rx(1) to Rx(n) by using a control chip, and obtain codes of different scan pulse signals corresponding to different signal segments in the received signal. .
  • the received signal corresponds to a signal segment of the scan pulse signal encoded as 1 and has a code of 1 corresponding to the scan pulse signal encoded as 2, in chronological order.
  • the encoding of the segment is 2 until it corresponds to the code a
  • the code segment of the scan pulse signal is coded a, that is, the code segment of the received signal corresponding to the scan pulse signal encoded as i is i, where 1 ⁇ i ⁇ a.
  • Step 4 When the finger touches the touch display panel, it is determined by the coding of the signal segment that the signal amount becomes small that the finger touches the drive line that provides the scan pulse signal corresponding to the code, and the signal with the signal amount becomes smaller. The touch position corresponding to the received signal of the segment can be obtained.
  • the i-th driving line Tx(i) of the scan pulse signal in combination with the received signal having the signal segment having a small signal amount, corresponds to the y-th receiving line Rx(y), so that the touch position is obtained on the i-th driving line Tx ( i) The intersection with the yth receiving line Rx(y).
  • the received signal of the yth receiving line Rx(y) in the step 4 corresponds to the signal amount of the signal segment encoded as i becomes smaller because the finger touches the ith driving line Tx(i) and When the yth receives the intersection of the line Rx(y), the capacitance at the junction becomes small.
  • the received signal of the second receiving line Rx(2) corresponds to The signal amount of the signal segment coded to 2 will become smaller, and by the code 2 of the signal segment whose signal amount becomes smaller in the received signal, it is determined that the second touch line corresponding to the scan pulse signal of the code 2 is touched by the finger.
  • Tx(2) in combination with the received signal having the signal segment having a small signal amount corresponding to the second receiving line Rx(2), the touch position is obtained at the second driving line Tx(2) and the second receiving line Rx. (2) The junction.
  • the scanning method of the touch signal of the present invention scans simultaneously with different scanning pulse signals corresponding to the number of the plurality of driving lines, and performs corresponding encoding on each scanning pulse signal; at the same time,
  • Each of the strip receiving lines synchronously receives all of the scan pulse signals provided by the plurality of drive lines, and then uses the control chip to decode the received signals received by each of the plurality of receive lines to determine the received signal.
  • the source of the different signal segments when the finger is touched, it is determined by the coding of the signal segment where the semaphore becomes small that the finger touches the drive line that provides the scan pulse signal corresponding to the code, combined with the signal segment having the smaller signal amount
  • the receiving line corresponding to the received signal that is, the position where the touch is located, can reduce the time taken by the In Cell type touch display device to scan the touch signal, increase the scanning time of the display signal, and promote the In Cell type touch display device. To a higher resolution.

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  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
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Abstract

本发明提供一种触控信号的扫描方法，使用与多条驱动线对应条数的不同扫描脉冲信号同时进行扫描，并对每一条扫描脉冲信号进行相应的编码；与此同时，多条接收线中的每一条均同步接收所有扫描脉冲信号，再使用控制芯片对每一条接收线接收到的接收信号进行解码，以确定接收信号中不同信号段的来源；当手指触摸时，由出现信号量变小的信号段的编码判定出手指触摸到的是提供对应该编码的扫描脉冲信号的驱动线，结合具有信号量变小的信号段的接收信号所对应的接收线，即得到触摸所在的位置，能够减少In Cell型触控显示装置对触控信号进行扫描所占用的时间，增加显示信号扫描的时间，促使In Cell型触控显示装置向更高的分辨率发展。

Description

触控信号的扫描方法 技术领域
本发明涉及触控显示技术领域，尤其涉及一种触控信号的扫描方法。
背景技术
随着显示技术的发展，液晶显示器(Liquid Crystal Display，LCD)等平面显示装置因具有高画质、省电、机身薄及应用范围广等优点，而被广泛的应用于手机、电视、个人数字助理、数字相机、笔记本电脑、台式计算机等各种消费性电子产品，成为显示装置中的主流。
触控面板(Touch panel)提供了一种新的人机互动界面，其在使用上更直接、更人性化。将触控面板与平面显示装置整合在一起，形成触控显示装置，能够使平面显示装置具有触控功能，可通过手指、触控笔等执行输入，操作更加直观、简便。
目前，液晶显示器及触控面板已经广泛地被人们所接受及使用，并且分别取代传统的阴极射线显像管和实体按键输入装置。最初的触控显示装置通常采用分离式触控屏，即将触控面板与液晶面板分开制造，然后通过组装的方式制作在一起。采用这种制造方案制得的触控显示装置比较厚，增加了较多的玻璃、薄膜，液晶面板的透光率与对比度也也会明显下降，而且由于分开制造，导致成本较高，市场竞争力下降。
为了解决上述问题，提供一种更轻薄，有更好的显示效果且低成本的触控显示装置，嵌入式触控技术应运而生，所谓嵌入式触控技术是将触控面板和液晶面板结合为一体，并将触控面板功能嵌入到液晶面板内，使得液晶面板同时具备显示和感知触控输入的功能。
现有的嵌入式触控技术主要分为两种：一种是触控电路在液晶盒上型(On Cell)，另一种是触控电路在液晶盒内型(In Cell)。随着智能手机市场的竞争日趋激烈，触显一体化产品的发展迅速。In Cell技术被认为是触控显示领域的高端技术，但现有的In Cell型触控面板多采用分时驱动方式，即将显示驱动和触控驱动分时独立进行，在一个周期(通常为一帧图像的显示时间)的第一时段内只进行显示信号的扫描操作，然后再在该周期的剩余时段内进行触控信号的扫描操作，而且对于互容触控信号的扫描一般是逐行进行的，行数越多，触控信号扫描所占用的时间就越多。随着产品分辨率的提高，显示信号扫描所需的时间就越来越长，相应的触控信号扫描 所需的扫描时间被压缩，出现触控信号的扫描时间不足的情况，限制了产品的发展。
因此，需要减少触控信号扫描所占用的时间，进而增加显示信号扫描的时间，以适应触控显示装置高分辨率的发展趋势。
发明内容
本发明的目的在于提供一种触控信号的扫描方法，能够减少In Cell型触控显示装置对触控信号进行扫描所占用的时间，增加显示信号扫描的时间，促使In Cell型触控显示装置向更高的分辨率发展。
为实现上述目的，本发明提供了一种触控信号的扫描方法，包括如下步骤：
步骤1、提供一触控显示面板；
所述触控显示面板包括m条相互平行并依次排列的水平的驱动线与n条相互平行并依次排列的竖直的接收线，其中m、n均为大于2的整数；
步骤2、使用信号发生器同时产生a条不同的扫描脉冲信号对相应的a条驱动线同时进行扫描，其中2≤a≤m，对应于上一条驱动线的扫描脉冲信号的下降沿与对应于下一条驱动线的扫描脉冲信号的上升沿同时产生，并对每一条扫描脉冲信号进行相应的编码；
在a条扫描脉冲信号对a条驱动线同时进行扫描时，每一条接收线均同步接收由a条驱动线提供的所有扫描脉冲信号，使得每一条接收线均接收到一相同信号量的接收信号；
步骤3、使用控制芯片对所每一条接收线所接收到的接收信号进行解码，得到接收信号中不同信号段对应的不同扫描脉冲信号的编码；
步骤4、当手指触摸所述触控显示面板时，由出现信号量变小的信号段的编码判定出手指触摸到的是提供对应该编码的扫描脉冲信号的驱动线，结合具有信号量变小的信号段的接收信号所对应的接收线，得到触摸位置。
所述触控信号扫描的定位方法的步骤2中，将对应于第i条驱动线的扫描脉冲信号编码为i，其中1≤i≤a。
所述步骤2中，所有扫描脉冲信号的脉冲时长之和等于接收信号的脉冲时长。
所述触控信号的扫描方法的步骤3中，按照时间先后顺序，接收信号对应于编码为i的扫描脉冲信号的信号段编码为i。
所述触控信号的扫描方法的步骤4的具体过程为：当手指触摸到第i条驱动线与第y条接收线的交接处时，其中1≤y≤n，该第y条接收线的接 收信号对应于编码为i的信号段的信号量将会变小，通过接收信号中信号量变小的信号段的编码i，判定出手指触摸到的是对应提供编码为i的扫描脉冲信号的第i条驱动线，结合具有信号量变小的信号段的接收信号对应于第y条接收线，得到触摸位置在第i条驱动线与第y条接收线的交接处。
所述驱动线与接收线均形成于公共电极层。
所述驱动线形成于公共电极层，所述接收线形成于不同于公共电极层的另一金属层。
所述扫描脉冲信号为高频信号。
所述触控显示面板为In Cell型触控显示面板。
所述触控显示面板为互容式触控显示面板。
本发明还提供一种触控信号的扫描方法，包括如下步骤：
步骤1、提供一触控显示面板；
所述触控显示面板包括m条相互平行并依次排列的水平的驱动线与n条相互平行并依次排列的竖直的接收线，其中m、n均为大于2的整数；
步骤2、使用信号发生器同时产生a条不同的扫描脉冲信号对相应的a条驱动线同时进行扫描，其中2≤a≤m，对应于上一条驱动线的扫描脉冲信号的下降沿与对应于下一条驱动线的扫描脉冲信号的上升沿同时产生，并对每一条扫描脉冲信号进行相应的编码；
在a条扫描脉冲信号对a条驱动线同时进行扫描时，每一条接收线均同步接收由a条驱动线提供的所有扫描脉冲信号，使得每一条接收线均接收到一相同信号量的接收信号；
步骤3、使用控制芯片对每一条接收线所接收到的接收信号进行解码，得到接收信号中不同信号段对应的不同扫描脉冲信号的编码；
步骤4、当手指触摸所述触控显示面板时，由出现信号量变小的信号段的编码判定出手指触摸到的是提供对应该编码的扫描脉冲信号的驱动线，结合具有信号量变小的信号段的接收信号所对应的接收线，得到触摸位置；
其中，所述步骤2中，将对应于第i条驱动线的扫描脉冲信号编码为i，其中1≤i≤a；
其中，所述触控显示面板为In Cell型触控显示面板；
其中，所述触控显示面板为互容式触控显示面板。
本发明的有益效果：本发明提供的一种触控信号的扫描方法，使用与多条驱动线对应条数的不同扫描脉冲信号同时进行扫描，并对每一条扫描脉冲信号进行相应的编码；与此同时，多条接收线中的每一条均同步接收由多条驱动线提供的所有扫描脉冲信号，再使用控制芯片对所述多条接收 线中的每一条所接收到的接收信号进行解码，以确定接收信号中不同信号段的来源；当手指触摸时，由出现信号量变小的信号段的编码判定出手指触摸到的是提供对应该编码的扫描脉冲信号的驱动线，结合具有信号量变小的信号段的接收信号所对应的接收线，即得到触摸所在的位置，能够减少In Cell型触控显示装置对触控信号进行扫描所占用的时间，增加显示信号扫描的时间，促使In Cell型触控显示装置向更高的分辨率发展。
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明的技术方案及其它有益效果显而易见。
附图中，
图1为本发明触控信号的扫描方法的触控显示面板的示意图；
图2为本发明触控信号的扫描方法的扫描脉冲信号的波形图；
图3为本发明触控信号的扫描方法的接收信号的波形图；
图4为应用本发明触控信号的扫描方法进行触摸时接收信号的波形图；
图5为本发明触控信号的扫描方法的流程图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图5，本发明提供一种触控信号的扫描方法，包括如下步骤：
步骤1、如图1所示，提供一触控显示面板。
所述触控显示面板包括m条相互平行并依次排列的水平的驱动线Tx(1)～Tx(m)与n条相互平行并依次排列的竖直的接收线Rx(1)～Rx(n)，其中m、n均为大于2的正整数。
具体地，所述驱动线Tx(1)～Tx(m)与接收线Rx(1)～Rx(n)可形成于同一层，优选的，所述驱动线Tx(1)～Tx(m)与接收线Rx(1)～Rx(n)均形成于公共电极层。所述驱动线Tx(1)～Tx(m)与接收线Rx(1)～Rx(n)也可形成于不同层，优选的，所述驱动线Tx(1)～Tx(m)形成于公共电极层，所述接收线Rx(1)～Rx(n)形成于不同于公共电极层的另一金属层。
所述触控显示面板为In Cell型触控显示面板；同时，所述触控显示面 板为互容式触控显示面板。
步骤2、使用信号发生器同时产生与a条不同的扫描脉冲信号对相应的a条驱动线同时进行扫描，其中2≤a≤m，对应于上一条驱动线的扫描脉冲信号的下降沿与对应于下一条驱动线的扫描脉冲信号的上升沿同时产生，并对每一条扫描脉冲信号进行相应的编码。
如图2所示，将对应于第1条驱动线Tx(1)的扫描脉冲信号编码为1，对应于第2条驱动线Tx(2)的扫描脉冲信号编码为2，直至将对应于第a条驱动线Tx(a)的扫描脉冲信号编码为a，即将对应于第i条驱动线Tx(i)的扫描脉冲信号编码为i，其中1≤i≤a；
在a条扫描脉冲信号对a条驱动线Tx(1)～Tx(a)进行扫描时，如图3所示，多条接收线Rx(1)～Rx(n)中的每一条均同步接收由a条驱动线Tx(1)～Tx(a)提供的所有扫描脉冲信号，使得多条接收线Rx(1)～Rx(n)中的每一条均接收到一相同信号量的接收信号。
具体地，所述扫描脉冲信号为高频信号；该步骤2中所有扫描脉冲信号的脉冲时长之和等于接收信号的脉冲时长。
值得一提的是，a的取值可以根据触控显示面板的内部控制芯片的运算与控制能力来选定。假设所述触控显示面板共包括30条相互平行并依次排列的水平的驱动线，即m的取值为30，信号发生器可同时产生2条不同的扫描脉冲信号以同时对2条驱动线同时进行扫描，即a的取值为2，分15次将30条驱动线全部扫描完，相比于现有技术的逐行扫描，扫描时间缩短至原来的1/2；信号发生器也可同时产生5条不同的扫描脉冲信号以同时对5条驱动线同时进行扫描，即a的取值为5，分6次将30条驱动线全部扫描完，相比于现有技术的逐行扫描，扫描时间缩短至原来的1/5；信号发生器还可同时产生10条不同的扫描脉冲信号以同时对10条驱动线同时进行扫描，即a的取值为10，分3次将30条驱动线全部扫描完，相比于现有技术的逐行扫描，扫描时间缩短至原来的1/10；信号发生器甚至可同时产生30条不同的扫描脉冲信号以同时对30条驱动线同时进行扫描，即a的取值为30，1次将30条驱动线全部扫描完，相比于现有技术的逐行扫描，扫描时间缩短至原来的1/30。
步骤3、使用控制芯片对所述多条接收线Rx(1)～Rx(n)中的每一条所接收到的接收信号进行解码，得到接收信号中不同信号段对应的不同扫描脉冲信号的编码。如图3所示，对所述接收信号进行解码后，按照时间先后顺序，接收信号对应于编码为1的扫描脉冲信号的信号段的编码为1，对应于编码为2的扫描脉冲信号的信号段的编码为2，直至对应于编码为a的 扫描脉冲信号的信号段的编码为a，即接收信号对应于编码为i的扫描脉冲信号的信号段的编码为i，其中1≤i≤a。
步骤4、当手指触摸所述触控显示面板时，由出现信号量变小的信号段的编码判定出手指触摸到的是提供对应该编码的扫描脉冲信号的驱动线，结合具有信号量变小的信号段的接收信号所对应的接收线，即可得到触摸位置。
具体地，当手指触摸到第i条驱动线Tx(i)与第y条接收线Rx(y)的交接处时，其中1≤i≤a、1≤y≤n，该第y条接收线Rx(y)的接收信号对应于编码为i的信号段的信号量将会变小，通过接收信号中信号量变小的信号段的编码i，判定出手指触摸到的是对应提供编码为i的扫描脉冲信号的第i条驱动线Tx(i)，结合具有信号量变小的信号段的接收信号对应于第y条接收线Rx(y)，即可得到触摸位置在第i条驱动线Tx(i)与第y条接收线Rx(y)的交接处。
进一步地，该步骤4中第y条接收线Rx(y)的接收信号对应于编码为i的信号段的信号量会变小，是由于当手指触摸到第i条驱动线Tx(i)与第y条接收线Rx(y)的交接处时，该交接处的电容变小。
以图4所示为例，当手指触摸到第2条驱动线Tx(2)与第2条接收线Rx(2)的交接处时，第2条接收线Rx(2)的接收信号对应于编码为2的信号段的信号量将会变小，通过接收信号中信号量变小的信号段的编码2，判定出手指触摸到的是对应提供编码为2的扫描脉冲信号的第2条驱动线Tx(2)，结合具有信号量变小的信号段的接收信号对应于第2条接收线Rx(2)，即可得到触摸位置在第2条驱动线Tx(2)与第2条接收线Rx(2)的交接处。
综上所述，本发明的触控信号的扫描方法，使用与多条驱动线对应条数的不同扫描脉冲信号同时进行扫描，并对每一条扫描脉冲信号进行相应的编码；与此同时，多条接收线中的每一条均同步接收由多条驱动线提供的所有扫描脉冲信号，再使用控制芯片对所述多条接收线中的每一条所接收到的接收信号进行解码，以确定接收信号中不同信号段的来源；当手指触摸时，由出现信号量变小的信号段的编码判定出手指触摸到的是提供对应该编码的扫描脉冲信号的驱动线，结合具有信号量变小的信号段的接收信号所对应的接收线，即得到触摸所在的位置，能够减少In Cell型触控显示装置对触控信号进行扫描所占用的时间，增加显示信号扫描的时间，促使In Cell型触控显示装置向更高的分辨率发展。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术 方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (17)

  1. 一种触控信号的扫描方法，包括如下步骤：
    步骤1、提供一触控显示面板；
    所述触控显示面板包括m条相互平行并依次排列的水平的驱动线与n条相互平行并依次排列的竖直的接收线，其中m、n均为大于2的整数；
    步骤2、使用信号发生器同时产生a条不同的扫描脉冲信号对相应的a条驱动线同时进行扫描，其中2≤a≤m，对应于上一条驱动线的扫描脉冲信号的下降沿与对应于下一条驱动线的扫描脉冲信号的上升沿同时产生，并对每一条扫描脉冲信号进行相应的编码；
    在a条扫描脉冲信号对a条驱动线同时进行扫描时，每一条接收线均同步接收由a条驱动线提供的所有扫描脉冲信号，使得每一条接收线均接收到一相同信号量的接收信号；
    步骤3、使用控制芯片对每一条接收线所接收到的接收信号进行解码，得到接收信号中不同信号段对应的不同扫描脉冲信号的编码；
    步骤4、当手指触摸所述触控显示面板时，由出现信号量变小的信号段的编码判定出手指触摸到的是提供对应该编码的扫描脉冲信号的驱动线，结合具有信号量变小的信号段的接收信号所对应的接收线，得到触摸位置。
  2. 如权利要求1所述的触控信号的扫描方法，其中，所述步骤2中，将对应于第i条驱动线的扫描脉冲信号编码为i，其中1≤i≤a。
  3. 如权利要求2所述的触控信号扫描定位方法，其中，所述步骤2中，所有扫描脉冲信号的脉冲时长之和等于接收信号的脉冲时长。
  4. 如权利要求3所述的触控信号的扫描方法，其中，所述步骤3中，按照时间先后顺序，接收信号对应于编码为i的扫描脉冲信号的信号段编码为i。
  5. 如权利要求4所述的触控信号的扫描方法，其中，所述步骤4的具体过程为：当手指触摸到第i条驱动线与第y条接收线的交接处时，其中1≤y≤n，该第y条接收线的接收信号对应于编码为i的信号段的信号量将会变小，通过接收信号中信号量变小的信号段的编码i，判定出手指触摸到的是对应提供编码为i的扫描脉冲信号的第i条驱动线，结合具有信号量变小的信号段的接收信号对应于第y条接收线，得到触摸位置在第i条驱动线与第y条接收线的交接处。
  6. 如权利要求1所述的触控信号的扫描方法，其中，所述驱动线与接 收线均形成于公共电极层。
  7. 如权利要求1所述的触控信号的扫描方法，其中，所述驱动线形成于公共电极层，所述接收线形成于不同于公共电极层的另一金属层。
  8. 如权利要求1所述的触控信号的扫描方法，其中，所述扫描脉冲信号为高频信号。
  9. 如权利要求1所述的触控信号的扫描方法，其中，所述触控显示面板为In Cell型触控显示面板。
  10. 如权利要求1所述的触控信号的扫描方法，其中，所述触控显示面板为互容式触控显示面板。
  11. 一种触控信号的扫描方法，包括如下步骤：
    步骤1、提供一触控显示面板；
    所述触控显示面板包括m条相互平行并依次排列的水平的驱动线与n条相互平行并依次排列的竖直的接收线，其中m、n均为大于2的整数；
    步骤2、使用信号发生器同时产生a条不同的扫描脉冲信号对相应的a条驱动线同时进行扫描，其中2≤a≤m，对应于上一条驱动线的扫描脉冲信号的下降沿与对应于下一条驱动线的扫描脉冲信号的上升沿同时产生，并对每一条扫描脉冲信号进行相应的编码；
    在a条扫描脉冲信号对a条驱动线同时进行扫描时，每一条接收线均同步接收由a条驱动线提供的所有扫描脉冲信号，使得每一条接收线均接收到一相同信号量的接收信号；
    步骤3、使用控制芯片对每一条接收线所接收到的接收信号进行解码，得到接收信号中不同信号段对应的不同扫描脉冲信号的编码；
    步骤4、当手指触摸所述触控显示面板时，由出现信号量变小的信号段的编码判定出手指触摸到的是提供对应该编码的扫描脉冲信号的驱动线，结合具有信号量变小的信号段的接收信号所对应的接收线，得到触摸位置；
    其中，所述步骤2中，将对应于第i条驱动线的扫描脉冲信号编码为i，其中1≤i≤a；
    其中，所述触控显示面板为In Cell型触控显示面板；
    其中，所述触控显示面板为互容式触控显示面板。
  12. 如权利要求11所述的触控信号扫描定位方法，其中，所述步骤2中，所有扫描脉冲信号的脉冲时长之和等于接收信号的脉冲时长。
  13. 如权利要求12所述的触控信号的扫描方法，其中，所述步骤3中，按照时间先后顺序，接收信号对应于编码为i的扫描脉冲信号的信号段编码为i。
  14. 如权利要求13所述的触控信号的扫描方法，其中，所述步骤4的具体过程为：当手指触摸到第i条驱动线与第y条接收线的交接处时，其中1≤y≤n，该第y条接收线的接收信号对应于编码为i的信号段的信号量将会变小，通过接收信号中信号量变小的信号段的编码i，判定出手指触摸到的是对应提供编码为i的扫描脉冲信号的第i条驱动线，结合具有信号量变小的信号段的接收信号对应于第y条接收线，得到触摸位置在第i条驱动线与第y条接收线的交接处。
  15. 如权利要求11所述的触控信号的扫描方法，其中，所述驱动线与接收线均形成于公共电极层。
  16. 如权利要求11所述的触控信号的扫描方法，其中，所述驱动线形成于公共电极层，所述接收线形成于不同于公共电极层的另一金属层。
  17. 如权利要求11所述的触控信号的扫描方法，其中，所述扫描脉冲信号为高频信号。
PCT/CN2015/082266 2015-06-02 2015-06-25 触控信号的扫描方法 Ceased WO2016192151A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020177096A1 (zh) * 2019-03-06 2020-09-10 深圳市汇顶科技股份有限公司 触摸控制器及相关芯片、触摸控制系统及触摸控制方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105807996A (zh) * 2016-03-08 2016-07-27 武汉华星光电技术有限公司 降低功耗的触控扫描驱动方法
CN109367239B (zh) * 2018-11-09 2020-10-30 珠海奔彩打印科技有限公司 一种自动识别打印方向的打印方法及装置
CN113760113B (zh) * 2020-06-03 2024-01-23 京东方科技集团股份有限公司 一种触控面板的驱动方法及装置、触控显示装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102460357A (zh) * 2009-05-29 2012-05-16 3M创新有限公司 高速多点触控触摸装置及其控制器
CN103941940A (zh) * 2013-01-22 2014-07-23 原相科技股份有限公司 并行驱动电容式触控感测装置及传输系统

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101128543B1 (ko) * 2006-06-09 2012-03-23 애플 인크. 터치 스크린 액정 디스플레이
JP5455126B2 (ja) * 2010-04-28 2014-03-26 株式会社ジャパンディスプレイ タッチ検出機能付き表示装置、駆動方法、および電子機器
CN102314245A (zh) * 2010-07-02 2012-01-11 君曜科技股份有限公司 编码式触控感测装置及方法
KR101840220B1 (ko) * 2011-10-10 2018-03-21 삼성디스플레이 주식회사 터치 표시 패널의 구동 방법 및 이에 적합한 터치 표시 장치
KR101374018B1 (ko) * 2012-04-24 2014-03-12 엘지디스플레이 주식회사 터치 스크린 구동 장치 및 방법
CN102736965B (zh) * 2012-05-23 2016-02-03 敦泰科技有限公司 一种基于电容式触摸屏驱动检测的方法和设备
KR101993856B1 (ko) * 2012-12-31 2019-06-28 삼성디스플레이 주식회사 터치센서 내장형 액정표시장치

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102460357A (zh) * 2009-05-29 2012-05-16 3M创新有限公司 高速多点触控触摸装置及其控制器
CN103941940A (zh) * 2013-01-22 2014-07-23 原相科技股份有限公司 并行驱动电容式触控感测装置及传输系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020177096A1 (zh) * 2019-03-06 2020-09-10 深圳市汇顶科技股份有限公司 触摸控制器及相关芯片、触摸控制系统及触摸控制方法
US11366554B2 (en) 2019-03-06 2022-06-21 Shenzhen GOODIX Technology Co., Ltd. Touch controller using simultaneously generated transmitting signals with different phases and associated chip, touch control system and touch control method

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