WO2017024738A1 - 一种触控驱动方法、触控驱动装置及触控显示装置 - Google Patents

一种触控驱动方法、触控驱动装置及触控显示装置 Download PDF

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WO2017024738A1
WO2017024738A1 PCT/CN2015/099459 CN2015099459W WO2017024738A1 WO 2017024738 A1 WO2017024738 A1 WO 2017024738A1 CN 2015099459 W CN2015099459 W CN 2015099459W WO 2017024738 A1 WO2017024738 A1 WO 2017024738A1
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Prior art keywords
frequency
touch
scanning
write
ram
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PCT/CN2015/099459
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English (en)
French (fr)
Inventor
王秀荣
时凌云
张�浩
高博
李亚飞
韩鹏
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京东方科技集团股份有限公司
北京京东方光电科技有限公司
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Priority to US15/307,127 priority Critical patent/US9880661B2/en
Priority to EP15889432.9A priority patent/EP3333679B1/en
Publication of WO2017024738A1 publication Critical patent/WO2017024738A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • G06F1/3262—Power saving in digitizer or tablet
    • 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
    • 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
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes

Definitions

  • the present invention relates to the field of touch technologies, and in particular, to a touch driving method, a touch driving device, and a touch display device.
  • the touch display screen can include two types of self-capacitive screens and mutual capacitive screens.
  • a self-capacitive screen as an example, as shown in FIG. 1, the self-capacitance screen is formed into a horizontal and vertical electrode array 01 on a glass surface by using a transparent conductive material such as indium tin oxide (ITO).
  • ITO indium tin oxide
  • a scan line 03 is connected between each electrode and the driving IC 02, and these electrodes 01 and ground respectively form a so-called self-capacitance, that is, a capacitance of the electrode to the ground.
  • the capacitance of the finger will increase the capacitance of the screen body.
  • the driving IC 02 can determine the lateral coordinate and the longitudinal coordinate of the touch position according to the capacitance change before and after the touch.
  • the scanning driving method adopted by the above self-capacitive screen is a time sharing driving method.
  • the mutual capacitance screen can also be scanned and driven by a time-division driving method.
  • the unit time T can be divided into two parts, a part of time (T1) is used for touch scanning, and another part of time (T2) is used for Display scan.
  • T1 a part of time
  • T2 another part of time
  • the touch scan and the display scan do not interfere with each other, and high-frequency touch scanning can be realized, which improves the accuracy of the touch detection, but also increases the power consumption of the entire touch module, especially when the user does not need When the touch function is frequently used, it is easy to waste power.
  • Embodiments of the present invention provide a touch driving method, a touch driving device, and a touch display device, which can reduce power consumption of a touch display screen.
  • an embodiment of the present invention provides a touch driving method including: inputting a touch driving signal at a first scanning frequency to perform touch scanning; detecting a write frequency of the random access memory RAM and writing at the a duration at a frequency; if the write frequency of the RAM is greater than or equal to a first threshold, and the duration at the write frequency is greater than or equal to a second threshold, reducing the first scan frequency to a second scan frequency.
  • the first scanning frequency is N times the second scanning frequency.
  • the first threshold has a value ranging from 25 frames/second to 30 frames/second.
  • the second threshold is 5 seconds.
  • the detecting the write frequency of the RAM and the duration at the write frequency include: detecting a write frequency of the RAM; if a write frequency of the RAM is greater than or equal to the first threshold, then The duration at this write frequency is recorded.
  • the touch driving method further includes: if the user-triggered touch action is detected, restoring the second scanning frequency to the first A scan frequency.
  • an embodiment of the present invention provides a touch driving device, including: a scanning unit, configured to input a touch driving signal at a first scanning frequency for performing touch scanning; and a detecting unit configured to detect a writing of the RAM a frequency and a duration at the write frequency; and an inverter unit configured to: if a write frequency of the RAM is greater than or equal to a first threshold, and a duration at the write frequency is greater than or equal to a second threshold, And then reducing the first scanning frequency to a second scanning frequency.
  • the device further includes a storage unit, wherein the detecting unit is further configured to detect a write frequency of the RAM and store the same to the storage unit; and if the write frequency of the RAM is greater than or equal to the The first threshold then records the duration at the write frequency in the memory unit.
  • the frequency conversion unit is further configured to restore the second scan frequency to the first scan frequency if a touch action triggered by a user is detected.
  • the touch driving device is a driving IC.
  • an embodiment of the present invention provides a touch display device, including the touch driving device of any of the above.
  • the embodiment of the present invention provides a touch driving method, a touch driving device, and a touch display device.
  • the touch driving device inputs a touch driving signal at a first scanning frequency and performs touch scanning, the RAM is detected.
  • the current user is watching a video or the like, and at this time, the touch driving device can reduce the first scanning frequency to the second scanning frequency. In this way, the user can reduce the frequency of the touch scan without using the touch function frequently, thereby reducing the power consumption of the touch display device and avoiding waste of resources.
  • FIG. 1 is a schematic structural view of a self-capacitance screen in the prior art
  • FIG. 2 is a schematic diagram of the principle of a time division driving method in the prior art
  • FIG. 3 is a schematic flowchart of a touch driving method according to an embodiment of the present invention.
  • FIG. 4 is a timing diagram of a touch scan signal according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart diagram of a touch driving method according to another embodiment of the present invention.
  • FIG. 6 is a timing diagram of a touch scan signal according to another embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a touch driving device according to still another embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a touch driving device according to still another embodiment of the present invention.
  • first and second are used for descriptive purposes only, and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining “first” and “second” may include one or more of the features either explicitly or implicitly. In the description of the present invention, "a plurality” means two or more unless otherwise stated.
  • Embodiments of the present invention provide a touch driving method.
  • the touch driving method includes: 101: inputting a touch driving signal at a first scanning frequency to perform touch scanning. 102. Detect a write frequency of the RAM and a duration at the write frequency. 103. If the write frequency of the RAM is greater than or equal to the first threshold, and the duration at the write frequency is greater than or equal to the second threshold, then reducing the first scan frequency to the second scan frequency. The second scanning frequency is less than the first scanning frequency.
  • step 101 the touch driving device inputs a touch driving signal to the touch electrode at the first scanning frequency to perform touch scanning.
  • one display period R is taken as an example.
  • the unit time T can be divided into two parts, a part of time (T1) is used for display scanning, and another part of time (T2) is used for touch scanning.
  • T1 time for touch scanning as shown in the timing diagram shown in FIG. 4, STVL is the system clock, G is the touch scanning signal, and the touch driving device can be arranged according to the electrodes in the touch panel.
  • the touch signal in T2 is partitioned, and the number of partitions is X.
  • the frequency of the touch scan is the first scan frequency.
  • the first scanning frequency for performing touch scanning is the same as the display scanning frequency for performing display scanning.
  • the first scanning frequency may also be an integral multiple of the display scanning frequency, that is, one or more touch scans are performed every time the display scan is performed, so that the accuracy of the touch detection can be improved, but at the same time It also increases the power consumption of the entire touch display device, especially when the user does not need to frequently use the touch function (for example, when the user is watching the video, only the display function is needed and less touch function is used). It is easy to cause waste of power consumption.
  • step 102 the touch drive device detects the write frequency of its own RAM and the duration at the write frequency.
  • the touch drive device can carry a random access memory (RAM), which can be read and written at any time, and is fast, and is usually used as a temporary data storage medium for some running programs.
  • RAM random access memory
  • the touch driving device may first detect the writing frequency of the RAM; if the writing frequency of the RAM is greater than or equal to the first threshold, the touch driving device records the duration of the writing frequency. In this way, the touch driving device can determine whether the user currently needs to frequently use the touch function according to the writing frequency of the RAM and the duration of the writing frequency.
  • step 103 it is assumed that the first threshold is 30 frames/second, and the playback speed of the video is generally also 30 frames/second. Therefore, if the write frequency of the RAM is greater than or equal to the first threshold, and the duration at the write frequency is greater than or equal to the second threshold, that is, the write frequency of the RAM continues to be greater than 30 frames/second, the current user may be considered Play video without having to use touch features frequently.
  • the touch driving device may reduce the first scanning frequency to a second scanning frequency, and the second scanning frequency is smaller than the first scanning frequency.
  • the touch driving device can be reduced.
  • the number of partitions in each display period R For example, the number of partitions in the time T2 of each touch scan is reduced to X/2. At this time, the frequency of the touch scan is the second scan frequency. Since the number of partitions in T2 is reduced by half, the first scanning frequency is twice the second scanning frequency.
  • the display function can be provided to the user, and the power consumption caused by unnecessary touch scanning can be reduced, thereby reducing the power consumption of the entire touch display device.
  • An embodiment of the present invention provides a touch driving method.
  • a touch driving device inputs a touch driving signal at a first scanning frequency for touch scanning, the writing frequency of the RAM and the duration of the writing frequency are detected. time. If the write frequency of the RAM is greater than or equal to the first threshold, and the duration of the write frequency is greater than or equal to the second threshold, it can be considered that the current user does not need to frequently use the touch function. For example, the current user is watching a video or the like.
  • the touch driving device can reduce the first scanning frequency to the second scanning frequency, and the second scanning frequency is smaller than the first scanning frequency, so as to ensure that the user reduces the need to frequently use the touch function.
  • the frequency of the touch scan is performed, thereby reducing the power consumption of the touch display device and avoiding waste of resources.
  • the touch driving method includes: 201: inputting a touch driving signal at a first scanning frequency to perform touch scanning. 202. Detect a write frequency of the RAM. 203. If the write frequency of the RAM is greater than or equal to the first threshold, record the duration at the write frequency. 204. If the duration at the write frequency is greater than or equal to The second threshold reduces the first scanning frequency to a second scanning frequency, the second scanning frequency being less than the first scanning frequency. 205. If a touch action triggered by the user is detected, return the second scan frequency to the first scan frequency.
  • step 201 the touch driving device inputs a touch driving signal to the touch electrode at the first scanning frequency to perform touch scanning.
  • the unit time T can be divided into two parts, a part of time (T1) is used for display scanning, and another part of time (T2) is used for touch.
  • Control scanning For each T2 time used for touch scanning, the timing chart shown in FIG. 4 is taken as an example, and the touch signals in the T2 can be partitioned according to the arrangement of the electrodes in the touch panel, and the number of partitions is divided.
  • X At this time, when the number of partitions is X, the frequency of the touch scan is the first scan frequency.
  • the touch driving signal is input at the first scanning frequency to perform touch scanning.
  • the touch driving device detects the write frequency of the RAM. If the write frequency of the RAM is greater than the first threshold, step 203 is performed.
  • the first threshold may be 30 frames/second.
  • the value of the first threshold may be used in various situations. For example, since the limit of the human eye recognition is 25 frames/second, the first threshold may be set to be 25 frames/second. Not limited.
  • step 203 if the write frequency of the RAM is greater than the first threshold, the touch driving device records the duration of the write frequency, and stores the duration in the storage unit, if If the duration of the write frequency is greater than or equal to the second threshold, then step 204 is performed.
  • the second threshold may be 5 seconds.
  • the value of the second threshold may also be various.
  • the embodiment of the present invention does not limit this.
  • the user can manually set the value of the second threshold in the touch display device.
  • step 204 if the duration at the write frequency is greater than or equal to the second threshold, the touch driving device reduces the first scan frequency to the second scan frequency.
  • the second scanning frequency is less than the first scanning frequency.
  • the first scanning frequency in step 201 may be N times the second scanning frequency, and N is an integer greater than 1.
  • the touch driving device can reduce the number of partitions in the time T2 of each touch scan to Y (X>Y).
  • the frequency of the scan is the second scan frequency.
  • the first scanning frequency is three times the second scanning frequency.
  • the display function can be provided to the user, and the power consumption caused by unnecessary touch scanning can be reduced, thereby reducing the power consumption of the entire touch display device.
  • the touch driving device can restore the second scanning frequency to the first scanning frequency according to step 205, so as to meet the requirement of the user to read the touch detection sensitivity.
  • the embodiment of the present invention provides a touch driving method.
  • a touch driving device inputs a touch driving signal at a first scanning frequency to perform touch scanning, the writing frequency of the RAM is detected and the writing frequency is If the write frequency of the RAM is greater than or equal to the first threshold, and the duration of the write frequency is greater than or equal to the second threshold, it can be considered that the current user does not need to frequently use the touch function, for example, the current user is watching the video. Wait.
  • the touch driving device may reduce the first scanning frequency to the second scanning frequency, and the second scanning frequency is smaller than the first scanning frequency. In this way, the user can reduce the frequency of the touch scan without using the touch function frequently, thereby reducing the power consumption of the touch display device and avoiding waste of resources.
  • the embodiment of the present invention provides a touch driving device, as shown in FIG. 7, comprising: a scanning unit 11 for inputting a touch driving signal at a first scanning frequency for touch scanning; and a detecting unit 12 for detecting random Accessing a write frequency of the memory RAM and a duration at the write frequency; and an inverter unit 13 for if the write frequency of the RAM is greater than or equal to a first threshold and at the write frequency The duration is greater than or equal to the second threshold, and the first scanning frequency is decreased to the second scanning frequency.
  • the first scanning frequency is N times the second scanning frequency.
  • the first threshold ranges from 25 frames/second to 30 frames/second.
  • the second threshold is 5 seconds.
  • the device further includes a storage unit 14, wherein the detecting unit 12 is specifically configured to detect a write frequency of the RAM and store the same to the storage unit 14;
  • the write frequency of the RAM is greater than the first threshold, and the duration at the write frequency is recorded in the storage unit 14.
  • the frequency conversion unit 13 is further configured to restore the second scanning frequency to the first scanning frequency if a touch action triggered by a user is detected.
  • the touch driving device may be specifically a driving IC.
  • an embodiment of the present invention further provides a touch display device, including any of the above touch display devices.
  • the touch display device may be any product or component having a display function, such as a liquid crystal panel, an electronic paper, an OLED panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • a display function such as a liquid crystal panel, an electronic paper, an OLED panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • the embodiment of the present invention provides a touch driving device and a touch display device.
  • the touch driving device inputs a touch driving signal at a first scanning frequency for touch scanning, the writing frequency of the RAM is detected and written.
  • the duration of the input frequency if the write frequency of the RAM is greater than or equal to the first threshold, and the duration of the write frequency is greater than or equal to the second threshold, it can be considered that the current user does not need to frequently use the touch function.
  • the current user is watching a video or the like, and at this time, the touch driving device can reduce the first scanning frequency to the second scanning frequency. In this way, the user can reduce the frequency of the touch scan without using the touch function frequently, thereby reducing the power consumption of the touch display device and avoiding waste of resources.

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Abstract

提供了一种触控驱动方法，该触控驱动方法包括：以第一扫描频率输入触控驱动信号，进行触控扫描(101)；检测RAM的写入频率、以及在该写入频率下的持续时间(102)；若该RAM的写入频率大于等于第一阈值，且在该写入频率下的持续时间大于等于第二阈值，则将该第一扫描频率降低为第二扫描频率，该第二扫描频率小于第一扫描频率(103)。还提供了一种触控驱动装置及触控显示装置，上述触控驱动方法、触控驱动装置及触控显示装置可降低触摸显示屏的功耗。

Description

一种触控驱动方法、触控驱动装置及触控显示装置
本申请要求了2015年8月7日提交的、申请号为201510484944.5、发明名称为“一种触控驱动方法、触控驱动装置及触控显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及触控技术领域，尤其涉及一种触控驱动方法、触控驱动装置及触控显示装置。
背景技术
触摸显示屏可包括自电容屏和互电容屏两种类型。以自电容屏为例，如图1所示，自电容屏在玻璃表面利用诸如氧化铟锡(ITO)之类的透明导电材料制作成横向与纵向的电极阵列01。每个电极与驱动IC 02之间都连接有扫描线03，这些电极01与地之间分别形成通常所说的自电容，即电极对地的电容。当用户的手指触摸到自电容屏时，手指的电容将会使屏幕体的电容量增加。这样一来，驱动IC 02便可以根据触摸前后的电容变化，分别确定触摸位置的横向坐标和纵向坐标。
上述自电容屏采用的扫描驱动方式为分时驱动方法。当然，互电容屏也可以采用分时驱动的方法进行扫描驱动。如图2所示，以一个显示周期R为例，在分时驱动方法中，可以将单位时间T分为两部分，一部分时间(T1)用于触控扫描，另一部分时间(T2)用于显示扫描。这样，触控扫描和显示扫描互不干扰，并且可以实现高频率的触控扫描，提高了进行触控检测的精度，但同时也增加了整个触控模组的功耗，尤其是当用户无需频繁使用触控功能的情况下，容易造成功耗的浪费。
发明内容
本发明的实施例提供一种触控驱动方法、触控驱动装置及触控显示装置，可降低触摸显示屏的功耗。
为达到上述目的，本发明的实施例采用如下技术方案。
一方面，本发明的实施例提供一种触控驱动方法，包括：以第一扫描频率输入触控驱动信号，进行触控扫描；检测随机存取存储器RAM的写入频率以及在所述写入频率下的持续时间；若所述RAM的写入频率大于等于第一阈值，并且在所述写入频率下的持续时间大于等于第二阈值，则将所述第一扫描频率降低为第二扫描频率。
进一步地，所述第一扫描频率是所述第二扫描频率的N倍。
进一步地，所述第一阈值的取值范围为25帧/秒-30帧/秒。
进一步地，所述第二阈值为5秒。
进一步地，所述检测RAM的写入频率以及在所述写入频率下的持续时间包括：检测所述RAM的写入频率；若所述RAM的写入频率大于等于所述第一阈值，则记录在该写入频率下的持续时间。
进一步地，在将所述第一扫描频率降低为第二扫描频率之后，所述触控驱动方法还包括：若检测到用户触发的触摸动作，则将所述第二扫描频率恢复为所述第一扫描频率。
另一方面，本发明的实施例提供一种触控驱动装置，包括：扫描单元，用于以第一扫描频率输入触控驱动信号，进行触控扫描；检测单元，用于检测RAM的写入频率以及在所述写入频率下的持续时间；以及变频单元，用于若所述RAM的写入频率大于等于第一阈值，并且在所述写入频率下的持续时间大于等于第二阈值，则将所述第一扫描频率降低为第二扫描频率。
进一步地，所述装置还包括存储单元，其中所述检测单元，还用于检测所述RAM的写入频率，并存储至所述存储单元；以及若所述RAM的写入频率大于等于所述第一阈值，则将在该写入频率下的持续时间记录在所述存储单元中。
进一步地，所述变频单元还用于若检测到用户触发的触摸动作，则将所述第二扫描频率恢复为所述第一扫描频率。
进一步地，所述触控驱动装置为驱动IC。
另一方面，本发明的实施例提供一种触控显示装置，包括上述任一项所述的触控驱动装置。
本发明的实施例提供一种触控驱动方法、触控驱动装置及触控显示装置，当触控驱动装置以第一扫描频率输入触控驱动信号，进行触控扫描时，检测其RAM的写入频率、以及在该写入频率下的持续时间；若RAM的写入频率大于等于第一阈值，并且在写入频率下的持续时间大于等于第二阈值，则可以认为当前用户无需频繁使用触控功能。例如，当前用户正在观看视频等，此时，触控驱动装置可以将第一扫描频率降低为第二扫描频率。这样一来，在保证用户在无需频繁使用触控功能的情况下，减小进行触控扫描的频率，进而降低触控显示装置的功耗，避免资源浪费。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术中自电容屏的结构示意图；
图2为现有技术中分时驱动方法的原理示意图；
图3为本发明的实施例提供的触控驱动方法的流程示意图；
图4为本发明的实施例提供的触控扫描信号的时序图；
图5为本发明的另一个实施例提供的触控驱动方法的流程示意图；
图6为本发明的另一个实施例提供的触控扫描信号的时序图；
图7为本发明的再一实施例提供的一种触控驱动装置的结构示意图；以及
图8为本发明的又一实施例提供的一种触控驱动装置的结构示意图。
具体实施方式
以下描述中，为了说明而不是为了限定，提出了诸如特定***结构、接口、技术之类的具体细节，以便透彻理解本发明。然而，本领域的技术人员应当清楚，在没有这些具体细节的其它实施例中也可以实现本发明。在其它情况中，省略对众所周知的装置、电路以及方法的详细说明，以免不必要的细节妨碍本发明的描述。
另外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。
本发明的实施例提供一种触控驱动方法。如图3所示，所述触控驱动方法包括：101、以第一扫描频率输入触控驱动信号，进行触控扫描。102、检测RAM的写入频率以及在该写入频率下的持续时间。103、若RAM的写入频率大于等于第一阈值，并且在该写入频率下的持续时间大于等于第二阈值，则将第一扫描频率降低为第二扫描频率。该第二扫描频率小于第一扫描频率。
在步骤101中，触控驱动装置以第一扫描频率向触控电极输入触控驱动信号，进行触控扫描。
具体的，对于分时驱动方法，如图2所示，以一个显示周期R为例。在分时驱动方法中，可以将单位时间T分为两部分，一部分时间(T1)用于显示扫描，另一部分时间(T2)用于触控扫描。在每个用于触控扫描的T2时间内，如图4所示的时序图为例，STVL为***时钟，G为触控扫描信号，触控驱动装置可以根据触控面板内电极的排布方式，将T2内的触控信号进行分区，分区个数为X。此时，在分区个数为X时，进行触控扫描的频率为第一扫描频率。
从图2中可以看出，进行触控扫描的第一扫描频率，与进行显示扫描的显示扫描频率相同。或者，该第一扫描频率也可以为该显示扫描频率的整数倍，也就是说，每进行一次显示扫描，都会进行一次或多次触控扫描，这样，可以提高触控检测的精度，但同时也增加了整个触控显示装置的功耗，尤其是当用户无需频繁使用触控功能的情况下(例如，用户在观看视频时，只需要显示功能而较少的会用到触控功能)，容易造成功耗的浪费。
因此，在步骤102中，触控驱动装置检测其自身RAM的写入频率、以及在该写入频率下的持续时间。
其中，触控驱动装置内可携带有随机存取存储器(random access memory，RAM)，它可以随时读写，而且速度很快，通常作为一些正在运行中的程序的临时数据存储媒介。
具体的，触控驱动装置可以先检测其RAM的写入频率；若该RAM的写入频率大于等于所述第一阈值，触控驱动装置则记录在该写入频率下的持续时间。这样，触控驱动装置便可以根据该RAM的写入频率、以及在该写入频率下的持续时间，判断用户当前是否需要频繁使用触控功能。
进一步地，在步骤103中，假设第一阈值为30帧/秒，而视频的播放速度一般也是30帧/秒。因此，若该RAM的写入频率大于等于第一阈值，且在该写入频率下的持续时间大于等于第二阈值，即RAM的写入频率持续大于30帧/秒，则可以认为当前用户正在播放视频，无需频繁使用触控功能。此时，触控驱动装置可以将第一扫描频率降低为第二扫描频率，该第二扫描频率小于第一扫描频率。
具体的，仍以图4所示的时序图为例，若该RAM的写入频率大于等于第一阈值，并且在该写入频率下的持续时间大于等于第二阈值，触控驱动装置可以减少每个显示周期R内的分区个数。例如，将每个触控扫描的时间T2内的分区个数减少为X/2个，此时，进行触控扫描的频率为第二扫描频率。由于T2内的分区个数减少一半，因此，第一扫描频率为第二扫描频率的2倍。
这样一来，既可以保证向用户提供显示功能，又可以减少不必要的触控扫描所带来的功耗浪费，进而降低了整个触控显示装置的功耗。
本发明的实施例提供一种触控驱动方法，当触控驱动装置以第一扫描频率输入触控驱动信号进行触控扫描时，检测其RAM的写入频率以及在该写入频率下的持续时间。若RAM的写入频率大于等于第一阈值，且在写入频率下的持续时间大于等于第二阈值，则可以认为当前用户无需频繁使用触控功能。例如，当前用户正在观看视频等。此时，触控驱动装置可以将第一扫描频率降低为第二扫描频率，第二扫描频率小于第一扫描频率，这样一来，在保证用户在无需频繁使用触控功能的情况下，减小进行触控扫描的频率，进而降低触控显示装置的功耗，避免资源浪费。
本发明的另一实施例还提供一种触控驱动方法。如图5所示，所述触控驱动方法包括：201、以第一扫描频率输入触控驱动信号，进行触控扫描。202、检测RAM的写入频率。203、若该RAM的写入频率大于等于第一阈值，则记录在该写入频率下的持续时间。204、若在该写入频率下的持续时间大于等于 第二阈值，则将第一扫描频率降低为第二扫描频率，该第二扫描频率小于第一扫描频率。205、若检测到用户触发的触摸动作，则将第二扫描频率恢复为第一扫描频率。
在步骤201中，触控驱动装置以第一扫描频率向触控电极输入触控驱动信号，进行触控扫描。
具体的，对于分时驱动方法。如图2所示，以一个显示周期R为例，在分时驱动方法中，可以将单位时间T分为两部分，一部分时间(T1)用于显示扫描，另一部分时间(T2)用于触控扫描。在每个用于触控扫描的T2时间内，仍以图4所示的时序图为例，可以根据触控面板内电极的排布方式，将T2内的触控信号进行分区，分区个数为X。此时，在分区个数为X时，进行触控扫描的频率为第一扫描频率。
进一步地，在以第一扫描频率输入触控驱动信号，进行触控扫描。进行触控扫描之后，在步骤202中，触控驱动装置检测RAM的写入频率，若该RAM的写入频率大于第一阈值，则执行步骤203。
可选的，该第一阈值可以为30帧/秒。
当然，该第一阈值的取值可以有多种情况，例如，由于人眼识别的极限为25帧/秒，因此，可以设置该第一阈值可以为25帧/秒，本发明实施例对此不做限定。
具体的，在步骤203中，若该RAM的写入频率大于第一阈值，触控驱动装置则记录在该写入频率下的持续时间，并将该持续时间存储至存储单元内，若在该写入频率下的持续时间大于等于第二阈值，则执行步骤204。
其中，该第二阈值可以为5秒。
当然，该第二阈值的取值也可以有多种情况，本发明实施例对此不做限定。例如，用户可以在触控显示装置内手动设置该第二阈值的取值。
在步骤204中，若在该写入频率下的持续时间大于等于第二阈值，触控驱动装置则将第一扫描频率降低为第二扫描频率。该第二扫描频率小于第一扫描频率。
其中，步骤201中的第一扫描频率可以为该第二扫描频率的N倍，N为大于1的整数。
具体的，若该RAM的写入频率大于等于第一阈值，且在该写入频率下的持续时间大于等于第二阈值，则可以认为当前用户正在播放视频，无需频繁使用触控功能。此时，如图6所示的变频之后的时序图，触控驱动装置可以将每个触控扫描的时间T2内的分区个数减少至Y个(X＞Y)，此时，进行触控扫描的频率为第二扫描频率。
例如，可以将分区个数减少为X/3(即3Y＝X)个，那么，在T2时间内进行触控扫描的第二扫描频率降低为原来第一扫描频率的1/3。此时，即第一扫描频率为第二扫描频率的3倍。
这样一来，既可以保证向用户提供显示功能，又可以减少不必要的触控扫描所带来的功耗浪费，进而降低了整个触控显示装置的功耗。
进一步地，在将第一扫描频率降低为第二扫描频率之后，虽然进行触控扫描的第二扫描频率降低，但是仍然可以检测用户触发的触摸动作。一旦检测到用户触发的触摸动作，则说明用户需要恢复原有的触控功能。此时，触控驱动装置则可按步骤205，将第二扫描频率恢复为第一扫描频率，以满足用户读对触控检测灵敏度的需求。
至此，本发明的实施例提供一种触控驱动方法，当触控驱动装置以第一扫描频率输入触控驱动信号进行触控扫描时，检测其RAM的写入频率以及在该写入频率下的持续时间；若RAM的写入频率大于等于第一阈值，且在写入频率下的持续时间大于等于第二阈值，则可以认为当前用户无需频繁使用触控功能，例如，当前用户正在观看视频等。此时，触控驱动装置可以将第一扫描频率降低为第二扫描频率，第二扫描频率小于第一扫描频率。这样一来，在保证用户在无需频繁使用触控功能的情况下，减小进行触控扫描的频率，进而降低触控显示装置的功耗，避免资源浪费。
本发明的实施例提供一种触控驱动装置，如图7所示，包括：扫描单元11，用于以第一扫描频率输入触控驱动信号进行触控扫描；检测单元12，用于检测随机存取存储器RAM的写入频率以及在所述写入频率下的持续时间；以及变频单元13，用于若所述RAM的写入频率大于等于第一阈值，且在所述写入频率下的持续时间大于等于第二阈值，则将所述第一扫描频率降低为第二扫描频率。
可选的，所述第一扫描频率是所述第二扫描频率的N倍。
可选的，所述第一阈值的取值范围为25帧/秒-30帧/秒。
可选的，所述第二阈值为5秒。
进一步地，如图8所示，所述装置还包括存储单元14，其中，所述检测单元12，具体用于检测所述RAM的写入频率，并存储至所述存储单元14；以及，若所述RAM的写入频率大于所述第一阈值，则将在该写入频率下的持续时间记录在所述存储单元14中。
进一步地，所述变频单元13，还用于若检测到用户触发的触摸动作，则将所述第二扫描频率恢复为所述第一扫描频率。
示例性的，所述触控驱动装置可以具体为驱动IC。
进一步地，本发明的实施例还提供一种触控显示装置，包括上述任一种触控显示装置。
其中，所述触控显示装置可以为：液晶面板、电子纸、OLED面板、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
本发明的实施例提供一种触控驱动装置及触控显示装置，当触控驱动装置以第一扫描频率输入触控驱动信号进行触控扫描时，检测其RAM的写入频率以及在该写入频率下的持续时间；若RAM的写入频率大于等于第一阈值，且在写入频率下的持续时间大于等于第二阈值，则可以认为当前用户无需频繁使用触控功能。例如，当前用户正在观看视频等，此时，触控驱动装置可以将第一扫描频率降低为第二扫描频率。这样一来，在保证用户在无需频繁使用触控功能的情况下，减小进行触控扫描的频率，进而降低触控显示装置的功耗，避免资源浪费。
在本说明书的描述中，具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (11)

  1. 一种触控驱动方法，其特征在于，包括：
    以第一扫描频率输入触控驱动信号，进行触控扫描；
    检测随机存取存储器RAM的写入频率以及在所述写入频率下的持续时间；
    若所述RAM的写入频率大于等于第一阈值，并且在所述写入频率下的持续时间大于等于第二阈值，则将所述第一扫描频率降低为第二扫描频率。
  2. 根据权利要求1所述的方法，其特征在于，所述第一扫描频率是所述第二扫描频率的N倍，N为大于1的整数。
  3. 根据权利要求1所述的方法，其特征在于，所述第一阈值的取值范围为25帧/秒-30帧/秒。
  4. 根据权利要求1所述的方法，其特征在于，所述第二阈值为5秒。
  5. 根据权利要求1-4中任一项所述的方法，其特征在于，所述检测RAM的写入频率以及在所述写入频率下的持续时间包括：
    检测所述RAM的写入频率；
    若所述RAM的写入频率大于等于所述第一阈值，则记录在该写入频率下的持续时间。
  6. 根据权利要求1-4中任一项所述的方法，其特征在于，在将所述第一扫描频率降低为第二扫描频率之后，所述方法还包括：
    若检测到用户触发的触摸动作，则将所述第二扫描频率恢复为所述第一扫描频率。
  7. 一种触控驱动装置，其特征在于，包括：
    扫描单元，用于以第一扫描频率输入触控驱动信号，进行触控扫描；
    检测单元，用于检测随机存取存储器RAM的写入频率以及在所述写入频率下的持续时间；
    变频单元，用于若所述RAM的写入频率大于等于第一阈值，且在所述写入频率下的持续时间大于等于第二阈值，则将所述第一扫描频率降低为第二扫描频率。
  8. 根据权利要求7所述的装置，其特征在于，所述装置还包括存储单元，其中，
    所述检测单元，还用于检测所述RAM的写入频率并存储至所述存储单元；以及，若所述RAM的写入频率大于等于所述第一阈值，则将在该写入频率下的持续时间记录在所述存储单元中。
  9. 根据权利要求7所述的装置，其特征在于，所述变频单元，还用于若检测到用户触发的触摸动作，则将所述第二扫描频率恢复为所述第一扫描频率。
  10. 根据权利要求7-9中任一项所述的装置，其特征在于，所述触控驱动装置为驱动集成电路IC。
  11. 一种触控显示装置，其特征在于，包括如权利要求7-10中任一项所述的触控驱动装置。
PCT/CN2015/099459 2015-08-07 2015-12-29 一种触控驱动方法、触控驱动装置及触控显示装置 WO2017024738A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI675325B (zh) * 2018-10-12 2019-10-21 台灣類比科技股份有限公司 觸控裝置之省電掃描方法

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104991682B (zh) 2015-08-07 2017-11-14 京东方科技集团股份有限公司 一种触控驱动方法、触控驱动装置及触控显示装置
KR102284593B1 (ko) * 2017-03-24 2021-08-04 삼성전자주식회사 터치 표시 구동 집적 회로 및 그것의 동작 방법
CN107016963A (zh) * 2017-04-20 2017-08-04 京东方科技集团股份有限公司 电致发光显示面板的驱动方法、其驱动装置及显示装置
CN107402625B (zh) * 2017-07-28 2020-03-27 Oppo广东移动通信有限公司 触摸屏扫描方法、装置、终端及计算机可读存储介质
CN108762471A (zh) * 2018-05-30 2018-11-06 维沃移动通信有限公司 一种显示控制方法及移动终端
TWI670699B (zh) * 2018-06-27 2019-09-01 大陸商北京集創北方科技股份有限公司 一種觸控與顯示驅動整合系統之顯示效果優化方法及採用該方法之觸控顯示面板
CN112740152B (zh) 2018-09-30 2023-09-08 华为技术有限公司 手写笔检测方法、***及相关装置
CN110060460A (zh) * 2019-05-07 2019-07-26 广东好太太科技集团股份有限公司 一种可调节功耗的rf触摸遥控器及其功耗调节方法
US10720947B1 (en) * 2019-10-02 2020-07-21 Qualcomm Incorporated Dynamic spur mitigation for wireless systems
CN111158527A (zh) * 2019-12-31 2020-05-15 厦门天马微电子有限公司 显示面板的驱动方法和显示面板

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101702106A (zh) * 2009-11-04 2010-05-05 深圳市汇顶科技有限公司 一种触摸屏终端的唤醒方法及***
CN103019796A (zh) * 2012-12-28 2013-04-03 深圳市汇顶科技股份有限公司 一种触摸终端的唤醒方法、***及触摸终端
CN103034347A (zh) * 2011-09-29 2013-04-10 联想(北京)有限公司 触点采样频率切换方法和设备
CN202887141U (zh) * 2012-03-07 2013-04-17 深圳市中银科技有限公司 触摸屏
CN103235664A (zh) * 2013-04-27 2013-08-07 深圳市金立通信设备有限公司 一种终端及触摸屏的控制方法
CN103294158A (zh) * 2012-03-05 2013-09-11 联想(北京)有限公司 一种信息处理方法及电子设备
US20130293484A1 (en) * 2012-05-04 2013-11-07 Research In Motion Limited Electronic device and method of detecting touches on a touch-sensitive display
CN103558941A (zh) * 2013-11-05 2014-02-05 广东欧珀移动通信有限公司 一种调整触摸屏功耗的方法、装置及移动终端
CN103577096A (zh) * 2012-07-18 2014-02-12 索尼移动通信日本株式会社 移动终端装置、操作方法、程序和存储介质
CN103885567A (zh) * 2014-03-11 2014-06-25 青岛海信电器股份有限公司 一种触控终端的唤醒方法及触控终端
CN104063105A (zh) * 2014-06-11 2014-09-24 合肥鑫晟光电科技有限公司 一种触摸装置及触摸驱动方法
CN104991682A (zh) * 2015-08-07 2015-10-21 京东方科技集团股份有限公司 一种触控驱动方法、触控驱动装置及触控显示装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0822375A (ja) * 1994-07-06 1996-01-23 Toshiba Corp タッチパネル清掃方法
CN102081451B (zh) * 2010-12-29 2012-09-19 鸿富锦精密工业（深圳）有限公司 电子装置及其电源控制方法
US20130265276A1 (en) * 2012-04-09 2013-10-10 Amazon Technologies, Inc. Multiple touch sensing modes
US9489067B2 (en) * 2012-08-17 2016-11-08 Qualcomm Incorporated Scalable touchscreen processing with realtime role negotiation among asymmetric processing cores
KR20140046813A (ko) * 2012-10-11 2014-04-21 삼성전자주식회사 터치 감지 장치 및 그것의 구동 방법
KR102050385B1 (ko) * 2012-10-30 2019-11-29 엘지디스플레이 주식회사 터치 센싱 시스템과 그 지연 시간 감소 방법
KR101560535B1 (ko) * 2012-12-11 2015-10-15 엘지디스플레이 주식회사 터치스크린 일체형 표시장치 및 그 구동 방법
US20140176450A1 (en) * 2012-12-21 2014-06-26 Barnesandnoble.Com Llc System and apparatus for adaptive setting of scan rate
US9946410B2 (en) * 2013-03-15 2018-04-17 Microchip Technology Germany Gmbh System and method for energy efficient measurement of sensor signal
CN103500096A (zh) * 2013-09-27 2014-01-08 宇龙计算机通信科技(深圳)有限公司 一种信息处理方法及装置
CN103970337B (zh) * 2013-10-21 2017-07-25 上海中航光电子有限公司 触摸屏的触摸扫描方法及其触摸扫描控制电路、显示装置
US10037100B2 (en) * 2015-03-02 2018-07-31 Apple Inc. SNR-aware active mode touch scans with electrode reallocation

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101702106A (zh) * 2009-11-04 2010-05-05 深圳市汇顶科技有限公司 一种触摸屏终端的唤醒方法及***
CN103034347A (zh) * 2011-09-29 2013-04-10 联想(北京)有限公司 触点采样频率切换方法和设备
CN103294158A (zh) * 2012-03-05 2013-09-11 联想(北京)有限公司 一种信息处理方法及电子设备
CN202887141U (zh) * 2012-03-07 2013-04-17 深圳市中银科技有限公司 触摸屏
US20130293484A1 (en) * 2012-05-04 2013-11-07 Research In Motion Limited Electronic device and method of detecting touches on a touch-sensitive display
CN103577096A (zh) * 2012-07-18 2014-02-12 索尼移动通信日本株式会社 移动终端装置、操作方法、程序和存储介质
CN103019796A (zh) * 2012-12-28 2013-04-03 深圳市汇顶科技股份有限公司 一种触摸终端的唤醒方法、***及触摸终端
CN103235664A (zh) * 2013-04-27 2013-08-07 深圳市金立通信设备有限公司 一种终端及触摸屏的控制方法
CN103558941A (zh) * 2013-11-05 2014-02-05 广东欧珀移动通信有限公司 一种调整触摸屏功耗的方法、装置及移动终端
CN103885567A (zh) * 2014-03-11 2014-06-25 青岛海信电器股份有限公司 一种触控终端的唤醒方法及触控终端
CN104063105A (zh) * 2014-06-11 2014-09-24 合肥鑫晟光电科技有限公司 一种触摸装置及触摸驱动方法
CN104991682A (zh) * 2015-08-07 2015-10-21 京东方科技集团股份有限公司 一种触控驱动方法、触控驱动装置及触控显示装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI675325B (zh) * 2018-10-12 2019-10-21 台灣類比科技股份有限公司 觸控裝置之省電掃描方法

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