WO2020097984A1 - 显示面板的驱动方法及装置 - Google Patents

显示面板的驱动方法及装置 Download PDF

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WO2020097984A1
WO2020097984A1 PCT/CN2018/117959 CN2018117959W WO2020097984A1 WO 2020097984 A1 WO2020097984 A1 WO 2020097984A1 CN 2018117959 W CN2018117959 W CN 2018117959W WO 2020097984 A1 WO2020097984 A1 WO 2020097984A1
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common voltage
voltage
preset threshold
display panel
target
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English (en)
French (fr)
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王明良
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HKC Co Ltd
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HKC Co Ltd
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Priority to US17/043,852 priority Critical patent/US11398203B2/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3648Control of matrices with row and column drivers using an active matrix
    • G09G3/3655Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3696Generation of voltages supplied to electrode drivers
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3648Control of matrices with row and column drivers using an active matrix
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/08Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809Several active elements per pixel in active matrix panels
    • G09G2300/0828Several active elements per pixel in active matrix panels forming a digital to analog [D/A] conversion circuit

Definitions

  • a driving method of a display panel including:
  • the second common voltage is output according to the first common voltage and the preset threshold.
  • the step of determining the preset threshold according to the first common voltage includes:
  • the preset threshold is determined according to the first target voltage.
  • the step of determining the preset threshold according to the first target voltage includes:
  • the preset threshold corresponding to the first target voltage is determined according to the range level of the first target voltage.
  • the method before the step of acquiring the first common voltage, the method further includes:
  • the first common voltage is determined according to the chip identification information.
  • obtaining the chip identification information refers to obtaining the factory number of the chip.
  • the step of outputting the second common voltage according to the first common voltage and the preset threshold includes:
  • the step of data processing the preset threshold and the first common voltage and outputting the second common voltage includes:
  • the second common voltage is output.
  • the step of data processing the preset threshold and the first common voltage and outputting the second common voltage includes:
  • the second common voltage is output.
  • the step of outputting the second common voltage after data conversion of the second target voltage includes:
  • the second common voltage is obtained, and the second common voltage is output.
  • a driving method of a display panel including:
  • the second common voltage is output according to the first common voltage and the preset threshold.
  • the step of determining the preset threshold according to the first target voltage includes:
  • the preset threshold corresponding to the first target voltage is determined according to the range level of the first target voltage.
  • obtaining the chip identification information refers to obtaining the factory number of the chip.
  • the step of outputting the second common voltage according to the first common voltage and the preset threshold includes:
  • the step of data processing the preset threshold and the first common voltage and outputting the second common voltage includes:
  • the second common voltage is obtained, and the second common voltage is output.
  • the second common voltage is output.
  • the step of outputting the second common voltage after data conversion of the second target voltage includes:
  • a driving device for a display panel including:
  • the processing output module is a micro control unit.
  • the above driving method of the display panel includes first obtaining a first common voltage; then determining a preset threshold according to the first common voltage; The second common voltage is output. In this way, only one common voltage needs to be adjusted, and the other common voltage will automatically follow based on the preset threshold, that is, the purpose of fixing the pressure difference is achieved. At the same time, this application can also improve work efficiency.
  • FIG. 1 is a flowchart of a driving method of a display panel provided by an embodiment of the present application
  • FIG. 2 is a flowchart of a driving method of a display panel provided by another embodiment of the present application.
  • FIG. 3 is a structural block diagram of a driving device for a display panel according to an embodiment of the application.
  • the embodiment of the present application discloses a driving method and device for a display panel. Only one common voltage needs to be adjusted, and the other common voltage will automatically follow, so as to achieve the purpose of fixing the pressure difference.
  • an embodiment of the present application provides a driving method of a display panel, including:
  • the specific value of the first common voltage is not specifically limited as long as the voltage output is guaranteed.
  • the first common voltage may be 5V. In one embodiment, the first common voltage may be 7V.
  • the specific value of the first common voltage may be set according to actual needs.
  • the manner of acquiring the first common voltage is not limited, as long as the first common voltage can be acquired.
  • the first common voltage can be obtained through a voltmeter.
  • the first common voltage can also be obtained through an oscilloscope.
  • the acquisition method of the first common voltage may be selected according to actual needs.
  • the first common voltage is the output voltage of the first chip.
  • S104 Determine a preset threshold according to the first common voltage.
  • the manner of determining the preset threshold according to the first common voltage is not limited, as long as the preset threshold can be determined according to the first common voltage.
  • the preset threshold may be determined by the mapping relationship between the first common voltage and the preset threshold. In one embodiment, when the first common voltage is 5V-6V, the preset threshold may be 0.5V. In one embodiment, when the first common voltage is 6V-7V, the preset threshold may be 1.5V. The specific mapping relationship between the first common voltage and the preset threshold may be selected according to actual needs. In one embodiment, the preset threshold may also be a fixed value, for example, the preset threshold is 0.5V or 1V, and so on. In one embodiment, the first processor may determine the preset threshold according to the first common voltage.
  • S106 Output a second common voltage according to the first common voltage and the preset threshold.
  • the second common voltage is output according to the first common voltage and the preset threshold. Specifically, the second common voltage is output after performing data analysis processing on the first common voltage and the preset threshold.
  • the data analysis processing may be sum processing or product processing.
  • the first common voltage and the preset threshold are added (ie, sum process); after the digital-to-analog conversion is performed on the added data To output the second common voltage.
  • the second common voltage may be output by the first single-chip microcomputer according to the first common voltage and the preset threshold. In one embodiment, the second common voltage is the output voltage of the second chip.
  • the first common voltage and the preset threshold are multiplied (ie, product processing); and the multiplied data is subjected to digital-to-analog conversion To output the second common voltage.
  • the value of the second common voltage can be determined by the value of the first common voltage and the value of the preset threshold. That is, only one common voltage needs to be adjusted, and the other common voltage will automatically follow, saving time and effort when adjusting.
  • the step of determining a preset threshold according to the first common voltage includes: performing analog-to-digital conversion on the first common voltage to obtain the first target voltage; and according to the first target voltage Determine the preset threshold.
  • the manner of performing analog-to-digital conversion on the first common voltage is not limited, as long as it is ensured that the first common voltage is converted from an analog voltage signal to a digital voltage signal.
  • the first common voltage may be signal converted by an analog-to-digital converter.
  • the analog-to-digital converter converts the first common voltage from an analog voltage signal to a digital voltage signal according to a preset reference standard.
  • the preset reference standard may be the largest convertible signal size.
  • the step of determining the preset threshold according to the first target voltage includes: determining the range level of the first target voltage; determining and determining the range based on the range level of the first target voltage The preset threshold corresponding to the first target voltage.
  • the range level may include a first level, a second level, and a third level.
  • the voltage range corresponding to the first level is 5V-6V
  • the preset threshold is 0.5V at this time.
  • the voltage range corresponding to the first level is 6V-7V, and the preset threshold is 1V at this time.
  • the voltage range corresponding to the first level is 7V-8V, and the preset threshold value is 1.5V.
  • the preset threshold corresponding to the first target voltage may be determined to be 0.5V.
  • the preset threshold corresponding to the first target voltage is 1V.
  • the range level may include a first level, a second level, a third level, a fourth level, and so on.
  • the voltage range of a specific level can be set according to actual needs.
  • the size of the preset threshold corresponding to a specific level can also be set according to actual needs.
  • the method before the step of acquiring the first common voltage, the method further includes: acquiring chip identification information; and determining the first common voltage according to the chip identification information.
  • the chip identification information may be the factory number of the chip.
  • the chip identification information may be a specific model of the chip and so on.
  • the chip identification information may also be a user-defined identification, such as identification of the chip in turn using natural numbers. According to the chip identification information, it can be determined which chip outputs the first common voltage.
  • the step of outputting the second common voltage according to the first common voltage and the preset threshold includes: acquiring the preset threshold; and converting the preset threshold and the first common voltage Perform data processing and output the second common voltage.
  • the numerical value of the preset threshold is not specifically limited, as long as the second common voltage is output according to the preset threshold and the first common voltage.
  • the value of the preset threshold may be set to 0.7V. In one embodiment, the value of the preset threshold may be set to 1.2V.
  • the specific numerical value of the preset threshold can be set according to actual needs.
  • Data processing the preset threshold and the first common voltage refers to summing or product processing the preset threshold and the first common voltage, and outputting the second common voltage according to the processing result . That is, the second common voltage may be determined according to the numerical value of the first common voltage and the preset threshold.
  • the step of performing data processing on the preset threshold and the first common voltage and outputting the second common voltage includes: converting the preset threshold and the first common voltage Performing sum processing or product processing to obtain a second target voltage; performing data conversion on the second target voltage and outputting the second common voltage.
  • Data conversion of the second target voltage refers to conversion of the second target voltage from a digital signal to an analog signal. Outputting the converted analog signal is to output the second common voltage.
  • the step of outputting the second common voltage after data conversion of the second target voltage includes: performing digital-to-analog conversion on the second target voltage based on a preset reference voltage; A second common voltage and output the second common voltage.
  • the value of the preset reference voltage is not specifically limited, as long as it is guaranteed that the second target voltage can be digital-analog converted based on the preset reference voltage.
  • the value of the preset reference voltage may be 13V. In one embodiment, the value of the preset reference voltage may be 15V.
  • the second target voltage can be converted from a digital voltage signal to an analog voltage signal by a digital-to-analog converter.
  • an embodiment of the present application provides a driving method of a display panel, including:
  • S202 Obtain chip identification information, and determine the first common voltage according to the chip identification information.
  • the specific value of the first common voltage is not specifically limited as long as the voltage output is guaranteed.
  • the first common voltage may be 5V.
  • the first common voltage may be 7V.
  • the specific value of the first common voltage may be set according to actual needs. It can be understood that the manner of acquiring the first common voltage is not limited, as long as the first common voltage can be acquired.
  • the chip identification information may be the factory number of the chip. In one embodiment, the chip identification information may be a specific model of the chip and so on. In one embodiment, the chip identification information may also be a user-defined identification, such as identification of the chip in turn using natural numbers. According to the chip identification information, it can be determined which chip outputs the first common voltage.
  • S204 Perform analog-to-digital conversion on the first common voltage to obtain the first target voltage.
  • the manner of performing analog-to-digital conversion on the first common voltage is not limited, as long as the conversion of the first common voltage from an analog voltage signal to a digital voltage signal is sufficient.
  • the first common voltage may be signal converted by an analog-to-digital converter.
  • the analog-to-digital converter converts the first common voltage from an analog voltage signal to a digital voltage signal according to a preset reference standard.
  • the preset reference standard may be the largest convertible signal size.
  • the manner of determining the preset threshold according to the first target voltage is not limited, as long as the preset threshold can be determined according to the first target voltage.
  • the preset threshold may be determined through the mapping relationship between the first target voltage and the preset threshold. In one embodiment, when the first target voltage is 5V-6V, the preset threshold may be 0.5V. In one embodiment, when the first target voltage is 6V-7V, the preset threshold may be 1.5V. The specific mapping relationship between the first target voltage and the preset threshold may be selected according to actual needs. In one embodiment, the preset threshold may also be a fixed value, for example, the preset threshold is 0.5V or 1V, and so on. In an embodiment, the first processor may determine the preset threshold according to the first target voltage.
  • the second common voltage is output according to the first common voltage and the preset threshold. Specifically, the second common voltage is output after performing data analysis processing on the first common voltage and the preset threshold.
  • the data analysis processing may be sum processing or product processing.
  • the data analysis process is a sum process
  • the first common voltage and the preset threshold are added (ie, sum process); after the digital-to-analog conversion is performed on the added data To output the second common voltage.
  • the first common voltage and the preset threshold are multiplied (ie, product processing); and the multiplied data is subjected to digital-to-analog conversion To output the second common voltage.
  • the value of the second common voltage can be determined by the value of the first common voltage and the value of the preset threshold. That is, only one common voltage needs to be adjusted, and the other common voltage will automatically follow, saving time and effort when adjusting.
  • the acquired first common voltage is subjected to analog-to-digital conversion, and the analog voltage V of the first common voltage is converted into a digital voltage V corresponding to the analog voltage V.
  • the analog voltage V of the first common voltage is converted into a digital voltage V corresponding to the analog voltage V.
  • the code For example, set a 7-bit code (the code), the first 3 bits represent the integer voltage value, and the last 4 bits represent the decimal voltage value, this code (code) is only a digital representation.
  • the digitized voltage value V is added to the preset threshold ( ⁇ V) to obtain the digitized voltage value V + ⁇ V of the second common voltage.
  • the operation conversion is performed, namely: Then This realizes the conversion of this purely digital V + ⁇ V into the actual usable code.
  • the code is subjected to digital-to-analog conversion processing, and finally the second common voltage can be output according to the first common voltage and the preset threshold to maintain a constant voltage difference.
  • the first common voltage obtained in this application is the actual output voltage of the chip, and the accuracy will be higher in specific applications.
  • an embodiment of the present application provides a display panel driving device 10, including an acquisition module 100, an analysis module 200, and a processing output module 300.
  • the obtaining module 100 is used to obtain a first common voltage.
  • the analysis module 200 is electrically connected to the acquisition module 100.
  • the analysis module 200 is used to determine a preset threshold according to the first common voltage.
  • the processing output module 300 is electrically connected to the acquisition module 100 and the analysis module 200, respectively.
  • the processing output module 300 is used to output a second common voltage according to the first common voltage and the preset threshold.
  • the analysis module 200 may use a processor 210.
  • the analysis module 200 may also use other devices, as long as it ensures the function of determining the preset threshold according to the first common voltage.
  • the processing output module 300 may use an MCU (Microcontroller Unit) 310.
  • the MCU outputs a second common voltage according to the first common voltage and the preset threshold.
  • the processing output module 300 may also use other devices, such as a processor.

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Abstract

提供了一种显示面板的驱动装置及驱动方法,该驱动方法包括:首先,获取第一公共电压(S102);然后,根据第一公共电压确定预设阈值(S104);最后,依据第一公共电压和预设阈值输出第二公共电压(S106)。通过该显示面板的驱动方法,只需调整一个公共电压即可,另一个公共电压基于所述预设阈值会自动跟随,即实现固定压差的目的。

Description

显示面板的驱动方法及装置
相关申请
本申请要求2018年11月12日申请的,申请号为201811338816.X,名称为“显示面板的驱动方法、装置及计算机设备”的中国专利申请的优先权,在此将其全文引入作为参考。
技术领域
本申请涉及液晶显示技术领域,更具体的说,涉及一种显示面板的驱动方法及装置。
背景技术
这里的陈述仅提供与本申请有关的背景信息,而不必然地构成现有技术。
液晶显示面板可视角不够大的问题,目前较流行将一个像素分成主像素(main)和次像素(sub),通过将次像素的电压释放到一个较低的准位来保证侧视角的亮度表现。针对次像素的放电方案,最新有提出一种双共电极(CF-VCOM、Array-VCOM)的设计。通过将液晶的次像素电压释放到Array-VCOM电压,那么次像素的液晶两端电压差就是Array-VCOM与CF-VCOM的差值。
目前这两个VCOM电压是用独立供电的方式提供的,互相不联动,故而无法实现固定压差的目的。
申请内容
基于此,有必要针对现有两个VCOM电压互相不联动,无法实现固定压差的问题,提供一种显示面板的驱动方法及装置。
一种显示面板的驱动方法,包括:
获取第一公共电压;
根据所述第一公共电压确定预设阈值;
依据所述第一公共电压和所述预设阈值输出第二公共电压。
在其中一个实施例中,所述根据所述第一公共电压确定预设阈值的步骤包括:
将所述第一公共电压进行模数转换,得到所述第一目标电压;
依据所述第一目标电压确定所述预设阈值。
在其中一个实施例中,所述依据所述第一目标电压确定所述预设阈值的步骤包括:
判断所述第一目标电压的范围等级;
依据所述第一目标电压的范围等级确定与所述第一目标电压对应的所述预设阈值。
在其中一个实施例中,所述获取第一公共电压的步骤之前,所述方法还包括:
获取芯片标识信息;
依据所述芯片标识信息确定所述第一公共电压。
在其中一个实施例中,所述获取芯片标识信息是指获取所述芯片的出厂编号。
在其中一个实施例中,所述依据所述第一公共电压和所述预设阈值输出第二公共电压的步骤包括:
获取所述预设阈值;
将所述预设阈值和所述第一公共电压进行数据处理,并输出所述第二公共电压。
在其中一个实施例中,所述将所述预设阈值和所述第一公共电压进行数据处理,并输出所述第二公共电压的步骤包括:
将所述预设阈值和所述第一公共电压进行和处理,得到第二目标电压;
将所述第二目标电压进行数据转换后输出所述第二公共电压。
在其中一个实施例中,所述将所述预设阈值和所述第一公共电压进行数据处理,并输出所述第二公共电压的步骤包括:
将所述预设阈值和所述第一公共电压进行积处理,得到第二目标电压;
将所述第二目标电压进行数据转换后输出所述第二公共电压。
在其中一个实施例中,所述将所述第二目标电压进行数据转换后输出所述第二公共电压的步骤包括:
将所述第二目标电压基于预设基准电压进行数模转换;
得到所述第二公共电压,并输出所述第二公共电压。
一种显示面板的驱动方法,包括:
获取芯片标识信息,并依据所述芯片标识信息确定所述第一公共电压;
将所述第一公共电压进行模数转换,得到所述第一目标电压;
依据所述第一目标电压确定预设阈值;
依据所述第一公共电压和所述预设阈值输出第二公共电压。
在其中一个实施例中,所述依据所述第一目标电压确定所述预设阈值的步骤包括:
判断所述第一目标电压的范围等级;
依据所述第一目标电压的范围等级确定与所述第一目标电压对应的所述预设阈值。
在其中一个实施例中,所述获取芯片标识信息是指获取所述芯片的出厂编号。
在其中一个实施例中,所述依据所述第一公共电压和所述预设阈值输出第二公共电压的步骤包括:
获取所述预设阈值;
将所述预设阈值和所述第一公共电压进行数据处理,并输出所述第二公共电压。
在其中一个实施例中,所述将所述预设阈值和所述第一公共电压进行数据处理,并输出所述第二公共电压的步骤包括:
将所述预设阈值和所述第一公共电压进行和处理,得到第二目标电压;
将所述第二目标电压进行数据转换后输出所述第二公共电压。
在其中一个实施例中,所述将所述第二目标电压进行数据转换后输出所述第二公共电压的步骤包括:
将所述第二目标电压基于预设基准电压进行数模转换;
得到所述第二公共电压,并输出所述第二公共电压。
在其中一个实施例中,所述将所述预设阈值和所述第一公共电压进行数据处理,并输出所述第二公共电压的步骤包括:
将所述预设阈值和所述第一公共电压进行积处理,得到第二目标电压;
将所述第二目标电压进行数据转换后输出所述第二公共电压。
在其中一个实施例中,所述将所述第二目标电压进行数据转换后输出所述第二公共电压的步骤包括:
将所述第二目标电压基于预设基准电压进行数模转换;
得到所述第二公共电压,并输出所述第二公共电压。
一种显示面板的驱动装置,包括:
获取模组,用于获取第一公共电压;
分析模组,与所述获取模组电连接,用于根据所述第一公共电压确定预设 阈值;
处理输出模组,分别与所述获取模组和所述分析模组电连接,用于依据所述第一公共电压和所述预设阈值输出第二公共电压。
在其中一个实施例中,所述分析模组为处理器。
在其中一个实施例中,所述处理输出模组为微控制单元。
从上述的技术方案可知,上述显示面板的驱动方法,包括首先获取第一公共电压;然后根据所述第一公共电压确定预设阈值;最后,依据所述第一公共电压和所述预设阈值输出第二公共电压。通过这种方法,只需调整一个公共电压即可,另一个公共电压基于所述预设阈值会自动跟随,即实现固定压差的目的。同时本申请还能够提高工作效率。
附图说明
为了更清楚地说明本申请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申请的实施例,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,还可以根据公开的附图获得其他的附图。
图1为本申请一实施例提供的显示面板的驱动方法的流程图;
图2为本申请另一实施例提供的显示面板的驱动方法的流程图;
图3为本申请一实施例提供的显示面板的驱动装置的结构框图。
附图标记
10  显示面板的驱动装置
100 获取模组
200 分析模组
210 处理器
300 输出模组
310 微控制单元
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,都属于本申请保护的范围。
本申请实施例公开了一种显示面板的驱动方法及装置,只需调整一个公共电压,另一个公共电压会自动跟随,从而实现固定压差的目的。
请参见图1,本申请一实施例提供一种显示面板的驱动方法,包括:
S102:获取第一公共电压。
可以理解,所述第一公共电压的具体数值不做具体的限定,只要保证电压输出即可。在一个实施例中,所述第一公共电压可为5V。在一个实施例中,所述第一公共电压可为7V。所述第一公共电压的具体数值,可根据实际需求进行设定。
可以理解,获取第一公共电压的方式不限,只要保证能够获取所述第一公共电压即可。在一个实施例中,可通过电压表获取所述第一公共电压。在一个实施例中,也可通过示波器获取所述第一公共电压。所述第一公共电压的获取方式,可根据实际需求进行选择。在一个实施例中,所述第一公共电压为第一芯片的输出电压。
S104:根据所述第一公共电压确定预设阈值。
可以理解,根据所述第一公共电压确定所述预设阈值的方式不限,只要保证根据所述第一公共电压能够确定所述预设阈值即可。在一个实施例中,可通过所述第一公共电压与所述预设阈值的映射关系确定所述预设阈值。在一个实 施例中,当所述第一公共电压为5V-6V时,所述预设阈值可为0.5V。在一个实施例中,当所述第一公共电压为6V-7V时,所述预设阈值可为1.5V。所述第一公共电压与所述预设阈值的具体映射关系,可根据实际需求进行选择。在一个实施例中,所述预设阈值也可为固定值,比如所述预设阈值为0.5V或1V等等。在一个实施例中,可通过第一处理器依据所述第一公共电压确定预设阈值。
S106:依据所述第一公共电压和所述预设阈值输出第二公共电压。
依据所述第一公共电压和所述预设阈值输出第二公共电压。具体的,将所述第一公共电压和所述预设阈值进行数据分析处理后输出所述第二公共电压。所述数据分析处理可以是和处理或积处理。在一个实施例中,当所述数据分析处理为和处理时,将所述第一公共电压和所述预设阈值相加(即和处理);并对相加后的数据进行数模转换后,输出所述第二公共电压。在一个实施例中,可通过第一单片机依据所述第一公共电压和所述预设阈值输出第二公共电压。在一个实施例中,所述第二公共电压为第二芯片的输出电压。
在一个实施例中,当所述数据分析处理为积处理时,将所述第一公共电压和所述预设阈值相乘(即积处理);并对相乘后的数据进行数模转换后,输出所述第二公共电压。不管采用和处理还是积处理,所述第二公共电压的数值大小均可通过所述第一公共电压和所述预设阈值的数值大小进行确定。即只需调整一个公共电压,另一个公共电压会自动跟随,调整时省时省力。
本实施例中,通过这种方法,只需调整一个公共电压即可,另一个公共电压基于所述预设阈值会自动跟随,即实现固定压差的目的。同时本申请还能够提高工作效率。
在一个实施例中,所述根据所述第一公共电压确定预设阈值的步骤包括:将所述第一公共电压进行模数转换,得到所述第一目标电压;依据所述第一目标电压确定所述预设阈值。
可以理解,将所述第一公共电压进行模数转换的方式不限,只要保证将所述第一公共电压从模拟电压信号转换为数字电压信号即可。在一个实施例中,所述第一公共电压可通过模数转换器进行信号转换。具体的,所述模数转换器依据预设参考标准将所述第一公共电压从模拟电压信号转换为数字电压信号。在一个实施例中,所述预设参考标准可为最大的可转换信号大小。
在一个实施例中,所述依据所述第一目标电压确定所述预设阈值的步骤包括:判断所述第一目标电压的范围等级;依据所述第一目标电压的范围等级确定与所述第一目标电压对应的所述预设阈值。
在一个实施例中,所述范围等级可包括第一级、第二级和第三级。具体的,所述第一级对应的电压范围为5V-6V,此时所述预设阈值为0.5V。所述第一级对应的电压范围为6V-7V,此时所述预设阈值为1V。所述第一级对应的电压范围为7V-8V,此时所述预设阈值为1.5V。在一个实施例中,当判断所述第一目标电压的范围等级为第一级时,可确定所述第一目标电压对应的所述预设阈值为0.5V。在一个实施例中,当判断所述第一目标电压的范围等级为第二级时,可确定所述第一目标电压对应的所述预设阈值为1V。在一个实施例中,所述范围等级可包括第一级、第二级、第三级以及第四级等等。具体等级的电压范围可根据实际需求进行设定。同样的,具体等级对应的所述预设阈值的大小也可根据实际需求进行设定。
在一个实施例中,所述获取第一公共电压的步骤之前,所述方法还包括:获取芯片标识信息;依据所述芯片标识信息确定所述第一公共电压。在一个实施例中,所述芯片标识信息可以为所述芯片的出厂编号。在一个实施例中,所述芯片标识信息可以为所述芯片的具体型号等等。在一个实施例中,所述芯片标识信息也可为用户自定义的标识,比如依次用自然数对芯片做的标识等。依据所述芯片标识信息可确定所述第一公共电压是哪一个芯片输出的。
在一个实施例中,所述依据所述第一公共电压和所述预设阈值输出第二公共电压的步骤包括:获取所述预设阈值;将所述预设阈值和所述第一公共电压进行数据处理,并输出所述第二公共电压。
可以理解,所述预设阈值的数值大小不做具体的限定,只要保证依据所述预设阈值和所述第一公共电压输出所述第二公共电压即可。在一个实施例中,所述预设阈值的数值大小可设定为0.7V。在一个实施例中,所述预设阈值的数值大小可设定为1.2V。所述预设阈值的具体数值大小,可根据实际需求进行设定。
将所述预设阈值和所述第一公共电压进行数据处理是指,将所述预设阈值和所述第一公共电压进行和处理或积处理,并依据处理结果输出所述第二公共电压。即所述第二公共电压可根据所述第一公共电压和所述预设阈值的数值大小进行确定。
在一个实施例中,所述将所述预设阈值和所述第一公共电压进行数据处理,并输出所述第二公共电压的步骤包括:将所述预设阈值和所述第一公共电压进行和处理或积处理,得到第二目标电压;将所述第二目标电压进行数据转换后输出所述第二公共电压。将所述第二目标电压进行数据转换是指,将所述第二目标电压从数字信号转换为模拟信号。将转换后的模拟信号输出即为输出所述第二公共电压。
在一个实施例中,所述将所述第二目标电压进行数据转换后输出所述第二公共电压的步骤包括:将所述第二目标电压基于预设基准电压进行数模转换;得到所述第二公共电压,并输出所述第二公共电压。
在一个实施例中,所述预设基准电压的数值不做具体的限定,只要保证基于所述预设基准电压能够将所述第二目标电压进行数模转换即可。在一个实施例中,所述预设基准电压的数值可为13V。在一个实施例中,所述预设基准电 压的数值可为15V。在一个实施例中,可通过数模转换器将所述第二目标电压从数字电压信号转换为模拟电压信号。
请参见图2,本申请一实施例提供一种显示面板的驱动方法,包括:
S202:获取芯片标识信息,并依据所述芯片标识信息确定所述第一公共电压。
可以理解,所述第一公共电压的具体数值不做具体的限定,只要保证电压输出即可。在一个实施例中,所述第一公共电压可为5V。在一个实施例中,所述第一公共电压可为7V。所述第一公共电压的具体数值,可根据实际需求进行设定。可以理解,获取第一公共电压的方式不限,只要保证能够获取所述第一公共电压即可。
在一个实施例中,所述芯片标识信息可以为所述芯片的出厂编号。在一个实施例中,所述芯片标识信息可以为所述芯片的具体型号等等。在一个实施例中,所述芯片标识信息也可为用户自定义的标识,比如依次用自然数对芯片做的标识等。依据所述芯片标识信息可确定所述第一公共电压是哪一个芯片输出的。
S204:将所述第一公共电压进行模数转换,得到所述第一目标电压。
可以理解,将所述第一公共电压进行模数转换的方式不限,只要保证将所述第一公共电压从模拟电压信号转换为数字电压信号即可。在一个实施例中,所述第一公共电压可通过模数转换器进行信号转换。具体的,所述模数转换器依据预设参考标准将所述第一公共电压从模拟电压信号转换为数字电压信号。在一个实施例中,所述预设参考标准可为最大的可转换信号大小。
S206:依据所述第一目标电压确定预设阈值。
可以理解,根据所述第一目标电压确定所述预设阈值的方式不限,只要保证根据所述第一目标电压能够确定所述预设阈值即可。在一个实施例中,可通 过所述第一目标电压与所述预设阈值的映射关系确定所述预设阈值。在一个实施例中,当所述第一目标电压为5V-6V时,所述预设阈值可为0.5V。在一个实施例中,当所述第一目标电压为6V-7V时,所述预设阈值可为1.5V。所述第一目标电压与所述预设阈值的具体映射关系,可根据实际需求进行选择。在一个实施例中,所述预设阈值也可为固定值,比如所述预设阈值为0.5V或1V等等。在一个实施例中,可通过第一处理器依据所述第一目标电压确定预设阈值。
S208:依据所述第一公共电压和所述预设阈值输出第二公共电压。
依据所述第一公共电压和所述预设阈值输出第二公共电压。具体的,将所述第一公共电压和所述预设阈值进行数据分析处理后输出所述第二公共电压。所述数据分析处理可以是和处理或积处理。在一个实施例中,当所述数据分析处理为和处理时,将所述第一公共电压和所述预设阈值相加(即和处理);并对相加后的数据进行数模转换后,输出所述第二公共电压。
在一个实施例中,当所述数据分析处理为积处理时,将所述第一公共电压和所述预设阈值相乘(即积处理);并对相乘后的数据进行数模转换后,输出所述第二公共电压。不管采用和处理还是积处理,所述第二公共电压的数值大小均可通过所述第一公共电压和所述预设阈值的数值大小进行确定。即只需调整一个公共电压,另一个公共电压会自动跟随,调整时省时省力。
本实施例中,通过这种方法,只需调整一个公共电压即可,另一个公共电压基于所述预设阈值会自动跟随,即实现固定压差的目的。同时本申请还能够提高工作效率。
本申请在具体使用时:
首先将获取到的所述第一公共电压进行模数转换,将所述第一公共电压的模拟电压V转换为与所述模拟电压V对应的数字电压V表示。比如设定一个7位的code(代码),前面3位表示整数位的电压值,后面4位表示小数位的电压 值,这个code(代码)只是数字型化的表示。然后将数字化的电压值V与所述预设阈值(△V)相加,得到所述第二公共电压的数字化电压值V+△V。然后依据硬件电路的设计原理进行运算转换,即:
Figure PCTCN2018117959-appb-000001
那么
Figure PCTCN2018117959-appb-000002
便实现了将这个纯数字化的V+△V转化为实际可用的code。其次,将code进行数模转换处理,最终便可依据所述第一公共电压和所述预设阈值输出所述第二公共电压,维持压差恒定。本申请获取到的所述第一公共电压为芯片的实际输出电压,在具体应用中精准度会更高。
综上所述,通过本申请这种方法,只需调整一个公共电压即可,另一个公共电压基于所述预设阈值会自动跟随,即实现固定压差的目的。同时本申请还能够提高工作效率。
请参见图3,本申请一实施例提供一种显示面板的驱动装置10,包括获取模组100、分析模组200以及处理输出模组300。所述获取模组100用于获取第一公共电压。所述分析模组200与所述获取模组100电连接。所述分析模组200用于根据所述第一公共电压确定预设阈值。所述处理输出模组300分别与所述获取模组100和所述分析模组200电连接。所述处理输出模组300用于依据所述第一公共电压和所述预设阈值输出第二公共电压。
在一个实施例中,所述分析模组200可采用处理器210。所述分析模组200也可采用其他的器件,只要保证能够根据所述第一公共电压确定预设阈值的功能即可。在一个实施例中,所述处理输出模组300可采用MCU(Microcontroller Unit,微控制单元)310。所述MCU依据所述第一公共电压和所述预设阈值输出第二公共电压。所述处理输出模组300也可采用其他的器件,比如处理器等。
最后,还需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者 暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
本说明书中各个实施例采用递进的方式描述,每个实施例重点说明的都是与其他实施例的不同之处,各个实施例之间相同相似部分互相参见即可。
对所公开的实施例的上述说明,使本领域专业技术人员能够实现或使用本申请。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的,本文中所定义的一般原理可以在不脱离本申请的精神或范围的情况下,在其它实施例中实现。因此,本申请将不会被限制于本文所示的这些实施例,而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (20)

  1. 一种显示面板的驱动方法,其中,包括:
    获取第一公共电压;
    根据所述第一公共电压确定预设阈值;
    依据所述第一公共电压和所述预设阈值输出第二公共电压。
  2. 根据权利要求1所述的显示面板的驱动方法,其中,所述根据所述第一公共电压确定预设阈值的步骤包括:
    将所述第一公共电压进行模数转换,得到所述第一目标电压;
    依据所述第一目标电压确定所述预设阈值。
  3. 根据权利要求2所述的显示面板的驱动方法,其中,所述依据所述第一目标电压确定所述预设阈值的步骤包括:
    判断所述第一目标电压的范围等级;
    依据所述第一目标电压的范围等级确定与所述第一目标电压对应的所述预设阈值。
  4. 根据权利要求1所述的显示面板的驱动方法,其中,所述获取第一公共电压的步骤之前,所述方法还包括:
    获取芯片标识信息;
    依据所述芯片标识信息确定所述第一公共电压。
  5. 根据权利要求4所述的显示面板的驱动方法,其中,所述获取芯片标识信息是指获取所述芯片的出厂编号。
  6. 根据权利要求1所述的显示面板的驱动方法,其中,所述依据所述第一公共电压和所述预设阈值输出第二公共电压的步骤包括:
    获取所述预设阈值;
    将所述预设阈值和所述第一公共电压进行数据处理,并输出所述第二公共 电压。
  7. 根据权利要求5所述的显示面板的驱动方法,其中,所述将所述预设阈值和所述第一公共电压进行数据处理,并输出所述第二公共电压的步骤包括:
    将所述预设阈值和所述第一公共电压进行和处理,得到第二目标电压;
    将所述第二目标电压进行数据转换后输出所述第二公共电压。
  8. 根据权利要求5所述的显示面板的驱动方法,其中,所述将所述预设阈值和所述第一公共电压进行数据处理,并输出所述第二公共电压的步骤包括:
    将所述预设阈值和所述第一公共电压进行积处理,得到第二目标电压;
    将所述第二目标电压进行数据转换后输出所述第二公共电压。
  9. 根据权利要求8所述的显示面板的驱动方法,其中,所述将所述第二目标电压进行数据转换后输出所述第二公共电压的步骤包括:
    将所述第二目标电压基于预设基准电压进行数模转换;
    得到所述第二公共电压,并输出所述第二公共电压。
  10. 一种显示面板的驱动方法,其中,包括:
    获取芯片标识信息,并依据所述芯片标识信息确定所述第一公共电压;
    将所述第一公共电压进行模数转换,得到所述第一目标电压;
    依据所述第一目标电压确定预设阈值;
    依据所述第一公共电压和所述预设阈值输出第二公共电压。
  11. 根据权利要求10所述的显示面板的驱动方法,其中,所述依据所述第一目标电压确定所述预设阈值的步骤包括:
    判断所述第一目标电压的范围等级;
    依据所述第一目标电压的范围等级确定与所述第一目标电压对应的所述预设阈值。
  12. 根据权利要求10所述的显示面板的驱动方法,其中,所述获取芯片标 识信息是指获取所述芯片的出厂编号。
  13. 根据权利要求10所述的显示面板的驱动方法,其中,所述依据所述第一公共电压和所述预设阈值输出第二公共电压的步骤包括:
    获取所述预设阈值;
    将所述预设阈值和所述第一公共电压进行数据处理,并输出所述第二公共电压。
  14. 根据权利要求13所述的显示面板的驱动方法,其中,所述将所述预设阈值和所述第一公共电压进行数据处理,并输出所述第二公共电压的步骤包括:
    将所述预设阈值和所述第一公共电压进行和处理,得到第二目标电压;
    将所述第二目标电压进行数据转换后输出所述第二公共电压。
  15. 根据权利要求14所述的显示面板的驱动方法,其中,所述将所述第二目标电压进行数据转换后输出所述第二公共电压的步骤包括:
    将所述第二目标电压基于预设基准电压进行数模转换;
    得到所述第二公共电压,并输出所述第二公共电压。
  16. 根据权利要求13所述的显示面板的驱动方法,其中,所述将所述预设阈值和所述第一公共电压进行数据处理,并输出所述第二公共电压的步骤包括:
    将所述预设阈值和所述第一公共电压进行积处理,得到第二目标电压;
    将所述第二目标电压进行数据转换后输出所述第二公共电压。
  17. 根据权利要求16所述的显示面板的驱动方法,其中,所述将所述第二目标电压进行数据转换后输出所述第二公共电压的步骤包括:
    将所述第二目标电压基于预设基准电压进行数模转换;
    得到所述第二公共电压,并输出所述第二公共电压。
  18. 一种显示面板的驱动装置,其中,包括:
    获取模组,用于获取第一公共电压;
    分析模组,与所述获取模组电连接,用于根据所述第一公共电压确定预设阈值;
    处理输出模组,分别与所述获取模组和所述分析模组电连接,用于依据所述第一公共电压和所述预设阈值输出第二公共电压。
  19. 根据权利要求18所述的显示面板的驱动装置,其中,所述分析模组为处理器。
  20. 根据权利要求18所述的显示面板的驱动装置,其中,所述处理输出模组为微控制单元。
PCT/CN2018/117959 2018-11-12 2018-11-28 显示面板的驱动方法及装置 Ceased WO2020097984A1 (zh)

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