WO2019227693A1 - 显示设备的控制方法和显示设备 - Google Patents

显示设备的控制方法和显示设备 Download PDF

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Publication number
WO2019227693A1
WO2019227693A1 PCT/CN2018/101635 CN2018101635W WO2019227693A1 WO 2019227693 A1 WO2019227693 A1 WO 2019227693A1 CN 2018101635 W CN2018101635 W CN 2018101635W WO 2019227693 A1 WO2019227693 A1 WO 2019227693A1
Authority
WO
WIPO (PCT)
Prior art keywords
scanning
driving circuit
display
touch screen
display device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/101635
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English (en)
French (fr)
Inventor
田维军
崔宏青
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US16/182,638 priority Critical patent/US10777150B2/en
Publication of WO2019227693A1 publication Critical patent/WO2019227693A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers

Definitions

  • the present application relates to the field of display technology, and in particular, to a control method of a display device and a display device.
  • touch screens can be divided into: Panel), On Cell Touch Panel, and In Cell Touch Panel.
  • LCD Liquid Crystal Display, liquid crystal display device
  • TP touch panel, touch screen
  • Scanning is a process of sampling analog signals, which is very sensitive to interference from other scans. Other scans affect the normal operation of TP scans, causing the entire module to have jump points and random report points, which seriously affects the user ’s use.
  • the current display device is affected by other scans when the touch screen is scanned, which interferes with the normal work of the touch screen.
  • the technical problem mainly solved by the present application is to provide a control method and a display device for a display device, which can avoid the display device from being affected by other scanning work when the touch screen is scanned, and ensure the normal operation of the touch screen.
  • the first technical solution adopted in the present application is to provide a control method for a display device, wherein the control method includes: acquiring a change in a scanning state of a display driving circuit; if the display driving circuit When the scanning state is switched from the display scanning state to the touch screen scanning state, scanning of the backlight driving circuit is suspended, wherein the refresh rate of the display scanning state is not lower than 60 Hz, and the adjacent display scanning state and the touch screen scanning The sum of the states and times is one frame, and the backlight is a scanning direct-type backlight.
  • the second technical solution adopted in the present application is to provide a control method for a display device, the control method including: detecting whether the display device is in a touch screen scan start or period; if it is in a touch screen scan start Or during, at least one signal / current scanning operation in the display device different from the display scanning is stopped.
  • a third technical solution adopted in the present application is to provide a display device including a memory and a processor coupled to each other, and the memory stores a computer program that can run on the processor. And when the processor executes the computer program, it is implemented: detecting whether the display device is in a touch screen start or period; if it is in a touch screen scan start or period, stopping at least one signal different from the display scan in the display device / Current scanning works.
  • the control method of the display device of the present application includes: detecting whether the display device is in the start or period of the touch screen scan; if it is in the start or period of the touch screen scan, stopping the display device is different from the display scan At least one signal / current scan works.
  • This application first detects the scanning status of the display device. When the display device performs touch screen scanning, other scanning tasks different from the display scanning are closed, which can prevent the display device from being affected by other scanning tasks when the touch screen is scanned, and ensure that the touch screen works normally.
  • FIG. 1 is a schematic structural diagram of an embodiment of a display device according to the present application.
  • FIG. 2 is a schematic diagram of a scanning timing of a display driving circuit in an embodiment of a display device of the present application
  • FIG. 3 is a schematic structural diagram of a backlight driving circuit in an embodiment of a display device of the present application.
  • FIG. 4 is a schematic diagram of a scanning timing of a backlight driving circuit in an embodiment of a display device of the present application
  • FIG. 5 is a schematic flowchart of an embodiment of a method for controlling a display device of the present application
  • FIG. 6 is a schematic diagram of a scanning sequence of a display device in an embodiment of a method for controlling a display device of the present application
  • FIG. 7 is a schematic structural diagram of another embodiment of a display device of the present application.
  • FIG. 1 is a schematic structural diagram of an embodiment of a display device of the present application.
  • the display device 10 includes a display driving circuit 11, a backlight driving circuit 12, a memory 13, and a processor 14.
  • the display driving circuit 11, the backlight driving circuit 12 and the memory 13 are respectively coupled to the processor 14.
  • the memory 13 stores a computer program that can be run on the processor 14; when the processor 14 executes the computer program, the display driving circuit 11 and the backlight driving circuit 12 are controlled.
  • the display device 10 is a liquid crystal display device, and the liquid crystal display device is an in-cell touch screen (In Cell Touch). Panel). In other embodiments, the display device 10 may also be another type of display device, for example, an external touch screen (Add on Mode Touch). Panel) and On Cell Touch Panel, which are not limited in this application.
  • the display device 10 may also be another type of display device, for example, an external touch screen (Add on Mode Touch). Panel) and On Cell Touch Panel, which are not limited in this application.
  • FIG. 2 is a schematic diagram of a scanning timing of a display driving circuit in an embodiment of a display device of the present application.
  • the display driving circuit 11 enters the display scanning state A after startup, and the display driving circuit 11 switches between the display scanning state A and the touch screen scanning state B as time changes.
  • the display driving circuit 11 performs display scanning in the display scanning state A, and performs touch screen scanning in the touch screen scanning state B.
  • the refresh rate of the display scan state A is not lower than 60 Hz, and the sum of the time of the adjacent display scan state A and the touch screen scan state B is one frame.
  • the scanning frequency of 60hz exceeds the human eye's resolution limit for flicker, which can ensure that the human eye does not feel flicker when viewing the display panel.
  • the display driving circuit 11 after the display driving circuit 11 is started, the screen data is refreshed at a rate of 60 Hz, that is, within one minute, the display driving circuit 11 performs 60 display scans and 60 touch screen scans. Within one frame (approximately 16.67 ms), the display driving circuit 11 performs a display scan for a period of time, then stops the display scan, and simultaneously starts the touch screen scan. After the touch screen scan is completed, the touch screen scan is stopped, and the display scan is restarted, that is, the touch screen scan and the display scan. Time-sharing scan. The number of time divisions and time allocation are designed according to the size and resolution of different display devices 10, which are not limited in this application.
  • FIG. 3 is a schematic structural diagram of a backlight driving circuit in an embodiment of a display device of the present application
  • FIG. 4 is a schematic scanning timing diagram of a backlight driving circuit in an embodiment of a display device of the present application.
  • the backlight driving circuit 12 is a scanning direct-type backlight.
  • the direct type backlight is a backlight scheme in which multiple LED lights are arranged on a substrate in a certain row and column distribution, and all LEDs are arranged on a substrate in a row and column matrix. According to the status of the LED positive and negative connections, a single or multiple adjacent LED lights are called a zone.
  • Direct type backlight can achieve local Diming (local backlight adjustment) control effect, that is, the entire backlight is not lit at the same time, but is divided into many partitions, the brightness of each partition can be individually controlled to match the LCD display screen.
  • the direct-type backlight dynamically changes the brightness of the partition as the gray level of the LCD display screen changes, so that the entire LCD module can perform better display effects.
  • the direct-type backlight drives all the LED lights by a row and column scanning method.
  • the backlight driving circuit 12 has 34 ⁇ 6 partitions. In other embodiments, the number of partitions may be determined according to actual conditions, for example, 34 ⁇ 9 partitions, which is not limited in this application.
  • the scanning driving method of the backlight driving circuit 12 is as follows: first SW1 is turned on, the positive electrode of the first row of LEDs is turned on, and CS1 ⁇ CS34 are turned on at the same time, so that the first row of LED lights are turned on, then SW1 is turned off, and SW2 is turned on at the same time, and turned on The positive electrode of the second column turns on CS1 ⁇ CS34 at the same time, so that the LED lights of the second column are turned on.
  • the scanning frequency of the direct-scanning backlight can reach several thousand HZ, which is far beyond the human eye's resolution limit for flicker, that is, as long as we have a scanning frequency of more than 60hz, we can ensure that the human eye does not feel flicker.
  • FIG. 5 is a schematic flowchart of an embodiment of a control method of a display device of the present application
  • FIG. 6 is a schematic diagram of a scanning sequence of a display device in an embodiment of a control method of a display device of the present application.
  • the control method of the display device 10 includes the following steps:
  • Step 101 Detect whether the display device is in the start or period of the touch screen scanning.
  • the processor 14 obtains the level change of the gate signal and the source signal of the display driving circuit 11, and the processor 14 obtains the display drive circuit according to the level change of the gate and source signals of the display driving circuit 11.
  • the change of the scanning state of 11. For example, if the processor 14 obtains all the gate start voltage (VGH), gate off voltage (VGL), and source signal (Vsource) of the display driving circuit 11 at preset values, the processor 14 judges the display The driving circuit 11 enters the touch screen scanning state B; if the processor 14 obtains the gate start voltage, gate off voltage, and source signal of the display driving circuit 11 not being preset values, the processor 14 determines that the display driving circuit 11 is in Enter the touch screen scanning state B.
  • Step 102 if it is in the start or period of the touch screen scanning, stop at least one signal / current scanning operation in the display device 10 that is different from the display scanning.
  • the processor 14 acquires a change in the scanning state of the display driving circuit 11. If the processor 14 determines that the scanning state of the display driving circuit 11 is switched from the display scanning state A to the touch screen scanning state B, the processor 14 suspends the backlight driving The scanning operation of the circuit 12.
  • the processor 14 obtains the level change of the gate signal and the source signal of the display driving circuit 11, and the processor 14 obtains the level change of the gate signal and the source signal of the display driving circuit 11 If the scanning state of the display driving circuit 11 changes, if the processor 14 determines that the scanning state of the display driving circuit 11 is switched from the display scanning state A to the touch screen scanning state B, the processor 14 suspends the scanning operation of the backlight driving circuit 12. For example, the processor 14 obtains the level change of the gate signal and the source signal of the display driving circuit 11.
  • the processor 14 obtains the gate start voltage, gate off voltage, and source signal of the display drive circuit 11, When the value is preset, the processor 14 determines that the display driving circuit 11 enters the touch screen scanning state B, and the processor 14 suspends the scanning operation of the backlight driving circuit 12.
  • the display driving circuit 11 and the backlight driving circuit 12 start synchronously, the display driving circuit 11 and the backlight driving circuit 12 enter a display scanning state A, and then enter a touch screen scanning state B, and in the display scanning state A and Switch between touch screen scanning state B.
  • the backlight driving circuit 12 starts scanning within a preset time before the display driving circuit 11 starts scanning, which can effectively avoid the frame delay caused by the backlight scanning being later than the display scanning.
  • the processor 14 obtains the level change of the gate signal and the source signal of the display driving circuit 11, and the processor 14 obtains the scanning state of the display drive circuit 11 according to the level change of the gate signal and the source signal of the display driving circuit 11.
  • the processor 14 determines that the scanning state of the display driving circuit 11 is switched from the display scanning state A to the touch screen scanning state B, the processor 14 suspends the scanning operation of the backlight driving circuit 12 and resumes the backlight driving when the touch screen scanning state B ends.
  • the scanning operation of the circuit 12. Preferably, when the touch screen scanning state B ends, the processor 14 controls the backlight driving circuit 12 to continue the scanning operation from the position where the scanning operation of the backlight driving circuit 12 is suspended.
  • the display driving circuit 11 and the backlight driving circuit 12 start synchronously after turning on, the display driving circuit 11 enters the display scanning state A, the backlight driving circuit 12 enters the scanning state, and the LCD screen is normally displayed.
  • the processor 14 detects when the gate start voltage (VGH), gate off voltage (VGL), and source signal (Vsource) of the display driving circuit 11 reach preset values. Then, the processor 14 determines that the display driving circuit 11 enters the touch screen scanning state B, then the processor 14 temporarily sets all the output signals of the backlight driving circuit 12 to the ground, the backlight driving circuit 12 no longer performs scanning work, and does not generate electromagnetic pulses. Avoid interference with touch screen scanning. When the state of the touch screen scanning state B ends, the backlight driving circuit 12 switches from the touch screen scanning state B to the display scanning state A, and the gate start voltage (VGH), gate off voltage (VGL), and source signal (Vsource) occur.
  • VGH gate start voltage
  • VGL gate off voltage
  • Vsource source signal
  • the backlight driver circuit 12 restarts, and then the position where the backlight driver circuit 12 paused scanning last time is followed by scanning. At this time, the touch screen scanning has ended, and the scanning of the backlight driving circuit 12 will not interfere with the touch screen scanning, thereby ensuring the normal operation of the touch screen scanning.
  • the suspended signal / current scanning work may be other scanning work than display scanning, and is not limited to backlight scanning.
  • the backlight scanning method may also be an edge-type backlight, which is not limited in this application.
  • the control method of the display device 10 of the present application includes: detecting whether the display device 10 is in the start or period of the touch screen scan; if it is in the start or period of the touch screen scan, stopping at least one of the display device 10 different from the display scan Signal / current scan operation.
  • This application first detects the scanning state of the display device 10, and when the display device 10 performs a touch screen scan, other scanning tasks different from the display scanning are closed, which can avoid the display device 10 from being affected by other scanning tasks when the touch screen is scanned, and ensure that the touch screen is normal. jobs.
  • FIG. 7 is a schematic structural diagram of another embodiment of a display device of the present application.
  • the display device 20 includes a display driving circuit 21, a backlight driving circuit 22, a display panel 23, a backlight 24, and a processor (not shown).
  • the display driving circuit 21 is used to drive the display screen of the display panel 23 and is switched between the touch screen scanning state and the display scanning state.
  • the scanning timing diagram of the display driving circuit 21 is the same as that in FIG. 2, and is not repeated here.
  • the backlight driving circuit 22 is used to drive the backlight 23 to provide a backlight source to the display panel 23.
  • the schematic diagram of the structure of the backlight driving circuit 22 is the same as that in FIG.
  • the processor After receiving the touch screen scanning synchronization signal of the display driving circuit 21, the processor sends a signal to the backlight driving circuit 22 to further control the display panel 23 and the backlight 24.
  • the display driving circuit 21 and the backlight driving circuit 22 are started synchronously, the display driving circuit 21 and the backlight driving circuit 22 enter a display scanning state A, and then enter a touch screen scanning state B, and in the display scanning state A and the touch screen Switch between scan states B.
  • the display driving circuit 21 enters the display scanning state A
  • the backlight driving circuit 22 The backlight 22 is driven to perform backlight scanning, a backlight source is provided to the display panel 23, and the display driving circuit 21 drives the display panel 23 to perform display scanning to display a screen.
  • the processor detects that the gate start voltage (VGH), gate off voltage (VGL), and source signal (Vsource) of the display driving circuit 21 reach preset values, Then the processor determines that the display driving circuit 21 enters the touch screen scanning state B, then the processor temporarily sets all the output signals of the backlight driving circuit 22 to the ground, the backlight driving circuit 22 no longer performs scanning work, and does not generate electromagnetic pulses, thereby avoiding Disturbance of touch screen scanning.
  • the backlight driving circuit 22 switches from the touch screen scanning state B to the display scanning state A, and the gate start voltage (VGH), gate off voltage (VGL), and source signal (Vsource) occur.
  • the backlight driving circuit 22 is restarted, and the position where the backlight driving circuit 22 paused scanning last time is then scanned. At this time, the touch screen scanning has ended, and the scanning of the backlight driving circuit 22 will not interfere with the touch screen scanning, thereby ensuring the normal operation of the touch screen scanning.
  • the control method of the display device of the present application includes: detecting whether the display device is at the start or period of the touch screen scan; if it is at the start or period of the touch screen scan, stopping at least one signal / current in the display device that is different from the display scan Scan job.
  • This application first detects the scanning status of the display device. When the display device performs touch screen scanning, other scanning tasks different from the display scanning are closed, which can prevent the display device from being affected by other scanning tasks when the touch screen is scanned, and ensure that the touch screen works normally.
  • the disclosed methods and devices may be implemented in other ways.
  • the device implementations described above are merely schematic.
  • the division of modules or units is only a logical function division.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

一种显示设备（10）的控制方法和显示设备（10），控制方法包括：检测显示设备（10）是否处于触摸屏扫描开始或期间（101）；若处于触摸屏扫描开始或期间，则停止显示设备（10）内不同于显示扫描的至少一种信号/电流扫描工作（102）。检测显示设备（10）的扫描状态，在显示设备（10）进行触摸屏扫描的时候关闭了不同于显示扫描的其他扫描工作，能够避免显示设备（10）在触摸屏扫描的时候被其他扫描工作影响，保证触摸屏正常工作。

Description

显示设备的控制方法和显示设备
【技术领域】
本申请涉及显示技术领域，特别是涉及一种显示设备的控制方法和显示设备。
【背景技术】
目前，触控屏按照组成结构可以分为：外挂式触摸屏（Add on Mode Touch Panel）、覆盖表面式触摸屏（On Cell Touch Panel）以及内嵌式触摸屏（In Cell Touch Panel）。针对市场上常见的in cell结构LCD（Liquid Crystal Display，液晶显示装置），在一段时间里，LCD和TP（touch panel，触摸屏）数据分时扫描。由于TP（touch panel，触摸屏）扫描是一个对模拟量采样的过程，对其他扫描干扰非常敏感，其他扫描影响了TP扫描的正常工作，使得整个模组出现了跳点和乱报点的情况，严重影响用户的使用。
也就是说，由于目前的显示设备在触摸屏扫描的时候会被其他扫描所影响，干扰了触摸屏的正常工作。
【发明内容】
本申请主要解决的技术问题是提供一种显示设备的控制方法和显示设备，能够避免显示设备在触摸屏扫描的时候被其他扫描工作影响，保证触摸屏的正常工作。
为解决上述技术问题，本申请采用的第一个技术方案是：提供一种显示设备的控制方法，其中，所述控制方法包括：获取显示驱动电路的扫描状态的变化；若所述显示驱动电路的扫描状态由显示扫描状态切换至触摸屏扫描状态，则暂停背光驱动电路的扫描工作，其中，所述显示扫描状态的刷新速率不低于60Hz，相邻的所述显示扫描状态和所述触摸屏扫描状态的时间之和为一帧，所述背光为扫描式的直下式背光。
为解决上述技术问题，本申请采用的第二个技术方案是：提供一种显示设备的控制方法，所述控制方法包括：检测所述显示设备是否处于触摸屏扫描开始或期间；若处于触摸屏扫描开始或期间，则停止所述显示设备内不同于显示扫描的至少一种信号/电流扫描工作。
为解决上述技术问题，本申请采用的第三个技术方案是：提供一种显示设备，包括相互耦接的存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器执行所述计算机程序时实现：检测所述显示设备是否处于触摸屏扫描开始或期间；若处于触摸屏扫描开始或期间，则停止所述显示设备内不同于显示扫描的至少一种信号/电流扫描工作。
本申请的有益效果是：区别于现有技术，本申请显示设备的控制方法包括：检测显示设备是否处于触摸屏扫描开始或期间；若处于触摸屏扫描开始或期间，则停止显示设备内不同于显示扫描的至少一种信号/电流扫描工作。本申请首先检测显示设备的扫描状态，在显示设备进行触摸屏扫描的时候关闭了不同于显示扫描的其他扫描工作，能够避免显示设备在触摸屏扫描的时候被其他扫描工作影响，保证触摸屏正常工作。
【附图说明】
图1是本申请显示设备一实施方式的结构示意图；
图2是本申请显示设备一实施方式中显示驱动电路的扫描时序示意图；
图3是本申请显示设备一实施方式中背光驱动电路的结构示意图；
图4是本申请显示设备一实施方式中背光驱动电路的扫描时序示意图；
图5是本申请显示设备的控制方法一实施方式的流程示意图；
图6是本申请显示设备的控制方法一实施方式中显示设备的扫描时序示意图；
图7是本申请显示设备另一实施方式的结构示意图。
【具体实施方式】
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，均属于本申请保护的范围。
请参阅图1，图1是本申请显示设备一实施方式的结构示意图。
如图1所示，显示设备10包括显示驱动电路11、背光驱动电路12、存储器13以及处理器14。显示驱动电路11、背光驱动电路12和存储器13分别与处理器14耦接。存储器13上存储有可在处理器14上运行的计算机程序；处理器14执行计算机程序时控制显示驱动电路11和背光驱动电路12。
本实施方式中，显示设备10为液晶显示设备，且液晶显示设备为内嵌式触摸屏（In Cell Touch Panel）。在其他实施方式中，显示设备10也可以为其他类型的显示设备，例如，外挂式触摸屏（Add on Mode Touch Panel）和覆盖表面式触摸屏（On Cell Touch Panel）等，本申请对此不作限定。
继续参阅图2，图2是本申请显示设备一实施方式中显示驱动电路的扫描时序示意图。如图2所示，显示驱动电路11在启动后进入显示扫描状态A，且显示驱动电路11随着时间的变化在显示扫描状态A和触摸屏扫描状态B之间切换。需要说明的是，显示驱动电路11在显示扫描状态A进行显示扫描，在触摸屏扫描状态B进行触摸屏扫描。显示扫描状态A的刷新速率不低于60Hz，相邻的显示扫描状态A和触摸屏扫描状态B的时间之和为一帧。60hz的扫描频率超出了人眼对于闪烁的分辨极限，可以保证人眼在观看显示面板时感受不到闪烁。
在一个具体的实施方式中，显示驱动电路11启动后以60hz的速率刷新画面数据，即在一分钟内，显示驱动电路11进行60次显示扫描和60次触摸屏扫描。在一帧内(约16.67ms)，显示驱动电路11先进行一段时间显示扫描，然后停止显示扫描，同时开始触摸屏扫描，触摸屏扫描完成后停止触摸屏扫描，重新开始显示扫描，即触摸屏扫描和显示扫描分时扫描。分时的数量和时间分配根据不同显示设备10的尺寸和分辨率设计，本申请对此不作限定。
参阅图3和图4，图3是本申请显示设备一实施方式中背光驱动电路的结构示意图，图4是本申请显示设备一实施方式中背光驱动电路的扫描时序示意图。
如图3所示，本实施方式中，背光驱动电路12为扫描式的直下式背光。直下式背光是一种将多颗LED灯按照一定的行列分布排布在基板上的背光方案，所有的LED按照行列矩阵排布在基板上。按照LED正负极连接的状态，单颗或多颗临近的LED灯被称为一个分区。直下式背光可以实现local diming（局部背光调节）的控制效果，即整面背光不是同时点亮，而是被分成了很多个分区，每一个分区的亮度可以单独控制，以配合LCD的显示画面。具体来说，当LCD某个区域的显示的画面灰度低时，对应直下式背光的分区亮度随之调低，当LCD某个区域显示的画面灰度高时，对应的直下式背光的分区亮度也随之调高。直下式背光随着LCD显示画面的灰度变化动态的去改变分区的亮度，使得整个LCD模组能表现更优异的显示效果。直下式背光为了动态的控制分区的亮度，通过行列扫描式的方法来驱动所有的LED灯。
结合图3和图4，背光驱动电路12具有34×6个分区。在其他实施方式中，分区个数可以根据实际情况决定，例如34×9个分区，本申请对此不作限定。背光驱动电路12的扫描式驱动方法如下：首先SW1打开，接通第一列LED的正极，同时打开CS1~CS34，使得第一列LED灯被点亮，然后关闭SW1，同时打开SW2，接通第二列的正极，同时打开CS1~CS34，使得第二列LED灯被点亮。以此类推顺序打开SW1，SW2到SW6，使得整面LED全部被点亮。最后一列LED被点亮之后，返回第一列打开SW1，重复扫描，在扫描速度超过60hz的情况下，人眼无法识别LED的闪烁过程，表现为整面LED保持常亮。直下扫描式背光的扫描频率可以到几千HZ，远远超出了人眼对于闪烁的分辨极限，即我们只要有超过60hz的扫描频率，就可以保证人眼感受不到闪烁。
继续参阅图5和图6，图5是本申请显示设备的控制方法一实施方式的流程示意图；图6是本申请显示设备的控制方法一实施方式中显示设备的扫描时序示意图。结合图1-6，显示设备10的控制方法包括如下步骤：
步骤101：检测显示设备是否处于触摸屏扫描开始或期间。
本实施方式中，处理器14获取显示驱动电路11的栅极信号和源极信号的电平变化，处理器14根据显示驱动电路11的栅极信号和源极信号的电平变化获取显示驱动电路11的扫描状态的变化。例如，若处理器14获取到显示驱动电路11的栅极启动电压(VGH)、栅极关闭电压(VGL)、以及源极信号(Vsource)全部置于预设值时，则处理器14判断显示驱动电路11进入触摸屏扫描状态B；若处理器14获取到显示驱动电路11的栅极启动电压、栅极关闭电压以及源极信号不为预设值，则处理器14判断显示驱动电路11处于未进入触摸屏扫描状态B。
步骤102：若处于触摸屏扫描开始或期间，则停止显示设备10内不同于显示扫描的至少一种信号/电流扫描工作。
本实施方式中，处理器14获取显示驱动电路11的扫描状态的变化，若处理器14判断显示驱动电路11的扫描状态由显示扫描状态A切换至触摸屏扫描状态B，则处理器14暂停背光驱动电路12的扫描工作。
在一个具体的实施方式中，处理器14获取显示驱动电路11的栅极信号和源极信号的电平变化，处理器14根据显示驱动电路11的栅极信号和源极信号的电平变化获取显示驱动电路11的扫描状态的变化，若处理器14判断显示驱动电路11的扫描状态由显示扫描状态A切换至触摸屏扫描状态B，则处理器14暂停背光驱动电路12的扫描工作。例如，处理器14获取显示驱动电路11的栅极信号和源极信号的电平变化，若处理器14获取到显示驱动电路11的栅极启动电压、栅极关闭电压以及源极信号全部置于预设值时，则处理器14判断显示驱动电路11进入触摸屏扫描状态B，则处理器14暂停背光驱动电路12的扫描工作。
在一个更具体的实施方式中，显示驱动电路11和背光驱动电路12同步启动，显示驱动电路11和背光驱动电路12进入显示扫描状态A，然后进入触摸屏扫描状态B，且在显示扫描状态A和触摸屏扫描状态B之间切换。在另一个具体的实施方式中，背光驱动电路12在显示驱动电路11启动扫描之前的预设时间内启动扫描，可以有效避免由于背光扫描晚于显示扫描所造成的画面延迟。处理器14获取显示驱动电路11的栅极信号和源极信号的电平变化，处理器14根据显示驱动电路11的栅极信号和源极信号的电平变化获取显示驱动电路11的扫描状态的变化，若处理器14判断显示驱动电路11的扫描状态由显示扫描状态A切换至触摸屏扫描状态B，则处理器14暂停背光驱动电路12的扫描工作，并在触摸屏扫描状态B结束时恢复背光驱动电路12的扫描工作。优选地，在触摸屏扫描状态B结束时，处理器14控制背光驱动电路12从暂停背光驱动电路12扫描工作的位置处继续进行扫描工作。例如，开机后显示驱动电路11和背光驱动电路12同步启动，显示驱动电路11进入显示扫描状态A，背光驱动电路12进入扫描状态，LCD画面正常显示。当一帧的数据扫描到某一行时，处理器14检测到显示驱动电路11的栅极启动电压(VGH)、栅极关闭电压(VGL)、以及源极信号(Vsource)到达预设至值时，则处理器14确定显示驱动电路11进入触摸屏扫描状态B，则处理器14暂时将背光驱动电路12的输出信号全部置地，背光驱动电路12不再进行扫描工作，不会产生电磁脉冲，也就避免了对触摸屏扫描的干扰。在触摸屏扫描状态B的状态结束时，背光驱动电路12由触摸屏扫描状态B切换至显示扫描状态A，栅极启动电压(VGH)、栅极关闭电压(VGL)、以及源极信号(Vsource)发生变化，背光驱动电路12重新启动，接着上一次背光驱动电路12暂停扫描的位置接着进行扫描。此时，触摸屏扫描已经结束，背光驱动电路12的扫描不会对触摸屏扫描产生干扰，保证了触摸屏扫描的正常工作。
在其他实施方式中，暂停的信号/电流扫描工作也可以是其他不同于显示扫描的扫描工作，并不仅限于背光扫描，背光扫描的方式也可以是侧入式背光，本申请对此不作限定。
区别于现有技术，本申请显示设备10的控制方法包括：检测显示设备10是否处于触摸屏扫描开始或期间；若处于触摸屏扫描开始或期间，则停止显示设备10内不同于显示扫描的至少一种信号/电流扫描工作。本申请首先检测显示设备10的扫描状态，在显示设备10进行触摸屏扫描的时候关闭了不同于显示扫描的其他扫描工作，能够避免显示设备10在触摸屏扫描的时候被其他扫描工作影响，保证触摸屏正常工作。
参阅图7，图7是本申请显示设备另一实施方式的结构示意图。如图7所示，显示设备20包括显示驱动电路21、背光驱动电路22、显示面板23、背光24以及处理器（图未示）。显示驱动电路21用于驱动显示面板23显示画面，且在触摸屏扫描状态和显示扫描状态之间切换，显示驱动电路21的扫描时序图与图2相同，在此不再赘述。背光驱动电路22用于驱动背光23向显示面板23提供背光源，背光驱动电路22的结构示意图与图3相同，背光驱动电路22的扫描时序图与图4相同，显示装置20的扫描时序图与图6相同，在此不再赘述。处理器接收显示驱动电路21的触摸屏扫描同步信号后，向背光驱动电路22发送信号，进而控制显示面板23和背光24。
本实施方式中，开机后，显示驱动电路21和背光驱动电路22同步启动，显示驱动电路21和背光驱动电路22进入显示扫描状态A，然后进入触摸屏扫描状态B，且在显示扫描状态A和触摸屏扫描状态B之间切换。显示驱动电路21进入显示扫描状态A时，背光驱动电路22 驱动背光22进行背光扫描，向显示面板23提供背光源，显示驱动电路21驱动显示面板23进行显示扫描以显示画面。当一帧的数据扫描到某一行时，处理器检测到显示驱动电路21的栅极启动电压(VGH)、栅极关闭电压(VGL)、以及源极信号(Vsource)到达预设至值时，则处理器确定显示驱动电路21进入触摸屏扫描状态B，则处理器暂时将背光驱动电路22的输出信号全部置地，背光驱动电路22不再进行扫描工作，不会产生电磁脉冲，也就避免了对触摸屏扫描的干扰。在触摸屏扫描状态B的状态结束时，背光驱动电路22由触摸屏扫描状态B切换至显示扫描状态A，栅极启动电压(VGH)、栅极关闭电压(VGL)、以及源极信号(Vsource)发生变化，背光驱动电路22重新启动，接着上一次背光驱动电路22暂停扫描的位置接着进行扫描。此时，触摸屏扫描已经结束，背光驱动电路22的扫描不会对触摸屏扫描产生干扰，保证了触摸屏扫描的正常工作。
区别于现有技术，本申请显示设备的控制方法包括：检测显示设备是否处于触摸屏扫描开始或期间；若处于触摸屏扫描开始或期间，则停止显示设备内不同于显示扫描的至少一种信号/电流扫描工作。本申请首先检测显示设备的扫描状态，在显示设备进行触摸屏扫描的时候关闭了不同于显示扫描的其他扫描工作，能够避免显示设备在触摸屏扫描的时候被其他扫描工作影响，保证触摸屏正常工作。
在本申请所提供的几个实施例中，应该理解到，所揭露的方法和装置，可以通过其它的方式实现。例如，以上所描述的装置实施方式仅仅是示意性的，例如，模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
以上仅为本申请的实施方式，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (20)

  1. 一种显示设备的控制方法，其中，所述控制方法包括：
    获取显示驱动电路的扫描状态的变化；
    若所述显示驱动电路的扫描状态由显示扫描状态切换至触摸屏扫描状态，则暂停背光驱动电路的扫描工作，其中，所述显示扫描状态的刷新速率不低于60Hz，相邻的所述显示扫描状态和所述触摸屏扫描状态的时间之和为一帧，所述背光为扫描式的直下式背光。
  2. 根据权利要求1所述的显示设备的控制方法，其中，所述若所述显示驱动电路的扫描状态由显示扫描状态切换至触摸屏扫描状态，则暂停所述背光驱动电路的扫描工作的步骤之后包括：
    在所述触摸屏扫描状态结束时恢复所述背光驱动电路的扫描工作。
  3. 根据权利要求2所述的显示设备的控制方法，其中，所述在所述触摸屏扫描状态结束时恢复所述背光驱动电路的扫描工作的步骤之后包括：
    在所述触摸屏扫描状态结束时，从暂停所述背光驱动电路扫描工作的位置处继续进行扫描工作。
  4. 根据权利要求1所述的显示设备的控制方法，其中，
    所述获取显示驱动电路的扫描状态的变化的步骤具体包括：
    获取所述显示驱动电路的栅极信号和源极信号的电平变化；
    所述若所述显示驱动电路的扫描状态由显示扫描状态切换至触摸屏扫描状态，则暂停背光驱动电路的扫描工作的步骤具体包括:
    若所述显示驱动电路的栅极信号和源极信号的电平变化至预设值，则暂停所述背光驱动电路的扫描工作。
  5. 根据权利要求4所述的显示设备的控制方法，其中，所述获取所述显示驱动电路的栅极信号和源极信号的电平变化的步骤之前包括：
    所述显示驱动电路和所述背光驱动电路同步扫描，所述显示驱动电路和所述背光驱动电路先进行所述显示扫描，再进行所述触摸屏扫描，两者交替切换。
  6. 根据权利要求4所述的显示设备的控制方法，其中，所述获取所述显示驱动电路的栅极信号和源极信号的电平变化的步骤之前包括：
    所述背光驱动电路在所述显示驱动电路开启扫描之前的预设时间内开启扫描。
  7. 一种显示设备的控制方法，其中，所述控制方法包括：
    检测所述显示设备是否处于触摸屏扫描开始或期间；
    若处于触摸屏扫描开始或期间，则停止所述显示设备内不同于显示扫描的至少一种信号/电流扫描工作。
  8. 根据权利要求7所述的控制方法，其中，
    所述检测所述显示设备是否处于触摸屏扫描开始或期间包括：
    获取显示驱动电路的扫描状态的变化；
    所述若处于触摸屏扫描开始或期间，则停止所述显示设备内不同于显示扫描的至少一种信号/电流扫描工作包括：
    若所述显示驱动电路的扫描状态由显示扫描状态切换至触摸屏扫描状态，则暂停背光驱动电路的扫描工作。
  9. 根据权利要求8所述的显示设备的控制方法，其中，所述若所述显示驱动电路的扫描状态由显示扫描状态切换至触摸屏扫描状态，则暂停背光驱动电路的扫描工作的步骤之后包括：
    在所述触摸屏扫描状态结束时恢复所述背光驱动电路的扫描工作。
  10. 根据权利要求9所述的显示设备的控制方法，其中，所述在所述触摸屏扫描状态结束时恢复所述背光驱动电路的扫描工作的步骤之后包括：
    在所述触摸屏扫描状态结束时，从暂停所述背光驱动电路扫描工作的位置处继续进行扫描工作。
  11. 根据权利要求8所述的显示设备的控制方法，其中，
    所述获取显示驱动电路的扫描状态的变化的步骤具体包括：
    获取所述显示驱动电路的栅极信号和源极信号的电平变化；
    所述若所述显示驱动电路的扫描状态由显示扫描状态切换至触摸屏扫描状态，则暂停背光驱动电路的扫描工作的步骤具体包括:
    若所述显示驱动电路的栅极信号和源极信号的电平变化至预设值，则暂停所述背光驱动电路的扫描工作。
  12. 根据权利要求11所述的显示设备的控制方法，其中，所述获取所述显示驱动电路的栅极信号和源极信号的电平变化的步骤之前包括：
    所述显示驱动电路和所述背光驱动电路同步扫描，所述显示驱动电路和所述背光驱动电路先进行所述显示扫描，再进行所述触摸屏扫描，两者交替切换。
  13. 根据权利要求11所述的显示设备的控制方法，其中，所述获取所述显示驱动电路的栅极信号和源极信号的电平变化的步骤之前包括：
    所述背光驱动电路在所述显示驱动电路开启扫描之前的预设时间内开启扫描。
  14. 根据权利要求8所述的显示设备的控制方法，其中，所述显示扫描状态的刷新速率不低于60Hz，相邻的所述显示扫描状态和所述触摸屏扫描状态的时间之和为一帧。
  15. 根据权利要求8所述的显示设备的控制方法，其中，所述背光为扫描式的直下式背光。
  16. 一种显示设备，其中，包括相互耦接的存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器执行所述计算机程序时实现：
    检测所述显示设备是否处于触摸屏扫描开始或期间；
    若处于触摸屏扫描开始或期间，则停止所述显示设备内不同于显示扫描的至少一种信号/电流扫描工作。
  17. 根据权利要求16所述的显示设备，其中，
    所述检测所述显示设备是否处于触摸屏扫描开始或期间包括：
    获取显示驱动电路的扫描状态的变化；
    所述若处于触摸屏扫描开始或期间，则停止所述显示设备内不同于显示扫描的至少一种信号/电流扫描工作包括：
    若所述显示驱动电路的扫描状态由显示扫描状态切换至触摸屏扫描状态，则暂停背光驱动电路的扫描工作。
  18. 根据权利要求17所述的显示设备，其中，所述若所述显示驱动电路的扫描状态由显示扫描状态切换至触摸屏扫描状态，则暂停背光驱动电路的扫描工作的步骤之后包括：
    在所述触摸屏扫描状态结束时恢复所述背光驱动电路的扫描工作。
  19. 根据权利要求18所述的显示设备，其中，所述在所述触摸屏扫描状态结束时恢复所述背光驱动电路的扫描工作的步骤之后包括：
    在所述触摸屏扫描状态结束时，从暂停所述背光驱动电路扫描工作的位置处继续进行扫描工作。
  20. 根据权利要求17所述的显示设备，其中，所述显示扫描状态的刷新速率不低于60Hz，相邻的所述显示扫描状态和所述触摸屏扫描状态的时间之和为一帧，所述背光为扫描式的直下式背光。
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