WO2020206786A1 - 显示面板的驱动方法及装置、控制器 - Google Patents

显示面板的驱动方法及装置、控制器 Download PDF

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Publication number
WO2020206786A1
WO2020206786A1 PCT/CN2019/086122 CN2019086122W WO2020206786A1 WO 2020206786 A1 WO2020206786 A1 WO 2020206786A1 CN 2019086122 W CN2019086122 W CN 2019086122W WO 2020206786 A1 WO2020206786 A1 WO 2020206786A1
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Prior art keywords
voltage
area
target panel
common voltage
common
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PCT/CN2019/086122
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English (en)
French (fr)
Inventor
吕晓文
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深圳市华星光电半导体显示技术有限公司
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Publication of WO2020206786A1 publication Critical patent/WO2020206786A1/zh

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Classifications

    • 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
    • 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
    • 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

Definitions

  • the present application relates to the field of display, and in particular to a driving method, device, and controller of a display panel.
  • the pixels in the sub-area are connected to the common voltage A_com through the shared thin-film transistor TFT_share to discharge the sub-area.
  • the main area and the sub-area form a potential difference to achieve the reverse of the liquid crystal The direction is inconsistent, so as to achieve the function of compensating the viewing angle.
  • the voltage source of the common voltage A_com cannot stabilize the excessive current difference, the voltage of the common voltage A_com changes under different gray levels.
  • the present application provides a method and device for driving a display panel, so as to solve the technical problem of unstable common electrode voltage of the existing display panel.
  • the present application provides a method for driving a display panel, which includes:
  • the first common voltage is an input voltage of a common signal line of a pixel circuit in the first region.
  • step S10 includes:
  • the first data voltage is an input voltage of a data signal line in a pixel circuit in the first area.
  • the driving method of the display panel includes:
  • step S10 includes:
  • the second common voltage is the output voltage of the common signal line of the pixel circuit in the first area.
  • the driving method of the display panel includes:
  • This application also proposes a driving device for a display panel, which includes an acquisition module, a detection module, a first control module, and a second control module;
  • the acquiring module is used to acquire the first driving voltage of the first area of the target panel
  • the detection module is configured to detect an abnormality of the target panel according to the first driving voltage
  • the first control module is configured to reduce the first common voltage of the first area when the first driving voltage is less than a threshold, and the target panel is abnormal;
  • the second control module is configured to restore the first common voltage of the first area when the first driving voltage is equal to a threshold, and the target panel is normal;
  • the first common voltage is an input voltage of a common signal line of a pixel circuit in the first region.
  • the acquisition module includes a scanning unit and an acquisition unit
  • the scanning unit is used to scan the target panel
  • the obtaining unit obtains the first data voltage of the first area of the target panel
  • the first data voltage is an input voltage of a data signal line in a pixel circuit in the first area.
  • the first control module is configured to reduce the first common voltage of the first area through a predetermined device when the target panel is abnormal when the first data voltage is less than a first threshold;
  • the second control module is used for restoring the first common voltage of the first area through the predetermined device when the first data voltage is equal to a first threshold and the target panel is normal.
  • the acquisition module includes a scanning unit and an acquisition unit
  • the scanning unit is used to scan the target panel
  • the obtaining unit obtains the second common voltage of the first area of the target panel
  • the second common voltage is the output voltage of the common signal line of the pixel circuit in the first area.
  • the first control module is configured to reduce the first common voltage of the first area through a predetermined device when the target panel is abnormal when the second common voltage is less than a second threshold;
  • the second control module is used for restoring the first common voltage of the first zone through the predetermined device when the second common voltage is equal to a second threshold and the target panel is normal.
  • This application also proposes a controller for executing a number of instructions stored in a memory to implement a method for driving a display panel, wherein the method for driving the display panel includes:
  • the first common voltage is an input voltage of a common signal line of a pixel circuit in the first region.
  • step S10 includes:
  • the first data voltage is an input voltage of a data signal line in a pixel circuit in the first area.
  • the driving method of the display panel includes:
  • step S10 includes:
  • the second common voltage is the output voltage of the common signal line of the pixel circuit in the first area.
  • the driving method of the display panel includes:
  • the first driving voltage can be the output voltage of the common signal line or the input voltage of the data signal line.
  • the display panel is determined When horizontal crosstalk occurs, reduce the input voltage of the common signal line corresponding to the first zone through a predetermined device, reduce the voltage difference before and after the input and output of the common signal line, ensure the stability of the common voltage in the first zone, and avoid the horizontal crosstalk of the display panel screen occur.
  • FIG. 1 is a circuit diagram of a 3T pixel structure of a conventional display panel
  • FIG. 2 is a step diagram of a method for driving a display panel of this application
  • FIG. 3 is the first structure diagram of the display panel driving device of this application.
  • FIG. 4 is a second structure diagram of the display panel driving device of this application.
  • FIG. 1 is a circuit diagram of a 3T pixel structure of a conventional display panel.
  • the liquid crystal display panel of this structure includes a plurality of sub-pixels arranged in an array, and each sub-pixel includes a main area and a sub area.
  • the main area is provided with a main area thin film transistor TFT_m, a main area liquid crystal capacitor Clc_m, and a main area storage capacitor Cst_m.
  • the sub-area is provided with a sub-area thin film transistor TFT_s, a sub-area liquid crystal capacitor Clc_s, a sub-area storage capacitor Cst_s, and a shared thin film transistor TFT_share.
  • the liquid crystal display panel also includes a scan line Gate corresponding to each row of sub-pixels, and one data line Data corresponding to each column of sub-pixels.
  • the gate of the main region thin film transistor TFT_m is connected to the scan line Gate, and the source/drain of the main region thin film transistor TFT_m is connected to the data line Data.
  • the main area liquid crystal capacitor Clc_m is connected in parallel between the drain/source of the main area thin film transistor TFT_m and the first common voltage A_com1.
  • the main area storage capacitor Cst_m is connected in parallel between the drain/source of the main area thin film transistor TFT_m and C_com.
  • the gate of the thin film transistor TFT_s in the sub-region is connected to the scan line Gate, and the source/drain of the thin film transistor TFT_s in the sub-region is connected to the data line Data.
  • the secondary storage capacitor Cst_s is connected in parallel between the drain/source of the secondary thin film transistor TFT_s and the first common voltage A_com1.
  • the sub-region liquid crystal capacitor Clc_s is connected in parallel between the drain/source of the sub-region thin film transistor TFT_s and C_com.
  • the gate of the shared thin film transistor TFT_share is connected to the scan line Gate, and the source/drain of the shared thin film transistor TFT_share is respectively connected to the drain/source of the thin film transistor TFT_s and the second common voltage A_com2.
  • the first common voltage A_com1 is the input voltage of the common signal line in the pixel circuit
  • the second common voltage A_com2 is the output voltage of the common signal line in the pixel circuit.
  • the present application proposes a driving method of a display panel based on the above-mentioned pixel structure circuit diagram. Please refer to FIG. 2.
  • the driving method of the display panel includes:
  • Step S10 specifically includes:
  • S101 Scan the target panel by using a first device
  • the first area may be any area of the target panel, which is not specifically limited in this application.
  • Step S101 of the present application may be understood as the first device may scan any area of the target panel.
  • the first driving voltage may be the input voltage of the data signal line in the corresponding pixel circuit or the output voltage of the common signal line.
  • the input voltage of the data signal line corresponds to the input voltage of the data line Data in FIG. 1
  • the output voltage of the common signal line corresponds to the second common voltage A_com2 in FIG. 1.
  • the first driving voltage may be the input voltage of the data signal line corresponding to the pixel circuit or the output voltage of the common signal line.
  • the output voltage of the common signal line also fluctuates with the input voltage of the data signal line. Therefore, the monitoring of the target panel only needs to correspond to one of the input voltage of the data signal line in the pixel circuit or the output voltage of the common signal line.
  • step S30 and step S40 when the first driving voltage is the input voltage corresponding to the data signal line in the pixel circuit, the driving method of the display panel includes:
  • the first threshold value corresponds to the input voltage value of the data signal line when the pixel circuit is working normally.
  • the driving method of the display panel includes:
  • the second threshold value corresponds to the output voltage value of the common signal line when the pixel circuit is working normally.
  • the first common voltage A_com1 is the input voltage of the common signal line of the pixel circuit in the first area.
  • the first data voltage pulls the second common voltage A_com2 of the corresponding pixel unit to the same level, and the second common voltage A_com2 of the corresponding pixel unit If it is less than the second threshold, the gray-scale voltage corresponding to the pixel unit will decrease, and the brightness will decrease, resulting in abnormal display of the target panel.
  • the first common voltage A_com1 is reduced to reduce the difference between the first common voltage A_com1 and the second common voltage A_com2, which increases the stability of the common voltage in the corresponding area and avoids the target panel display panel lateral crosstalk happened.
  • the target panel When the first data voltage is equal to the first threshold or the second common voltage A_com2 is equal to the second threshold, the target panel is displayed normally. At this time, the reduced first common voltage A_com1 needs to be restored to the original value. There is a level to prevent the brightness of the corresponding pixel unit from being too low due to the decrease of the first common voltage A_com1.
  • the first driving voltage can be the output voltage of the common signal line or the input voltage of the data signal line.
  • the display panel is determined When horizontal crosstalk occurs, reduce the input voltage of the common signal line corresponding to the first zone through a predetermined device, reduce the voltage difference before and after the input and output of the common signal line, ensure the stability of the common voltage in the first zone, and avoid the horizontal crosstalk of the display panel screen occur.
  • This application also proposes a controller, which is used to execute a number of instructions stored in the memory to implement the above-mentioned driving method of the display panel.
  • the specific content is the same or similar to the above-mentioned driving method, and will not be repeated here.
  • FIG. 3 is a first structure diagram of the display panel driving device of the present application.
  • the driving device 200 of the display panel includes an acquisition module 201, a detection module 202, a first control module 203, and a second control module 204.
  • the acquiring module 201 is used for acquiring the first driving voltage of the first area of the target panel.
  • the detection module 202 is configured to detect an abnormality of the target panel according to the first driving voltage.
  • the first control module 203 is configured to reduce the first common voltage A_com1 of the first area when the first driving voltage is less than a threshold value and the target panel is abnormal.
  • the second control module 204 is used for restoring the first common voltage A_com1 of the first area when the first driving voltage is equal to the threshold, and the target panel is normal.
  • the first common voltage A_com1 is the input voltage of the common signal line of the pixel circuit in the first area.
  • FIG. 4 is a second structure diagram of the display panel driving device of the present application.
  • the acquiring module 201 includes a scanning unit 2011 and an acquiring unit 2012.
  • the scanning unit 2011 is used to scan the target panel.
  • the obtaining unit 2012 obtains the first data voltage of the first area of the target panel.
  • the first area may be any area of the target panel, which is not specifically limited in this application.
  • Step S101 of the present application may be understood as the first device may scan any area of the target panel.
  • the first driving voltage may be the input voltage of the data signal line in the corresponding pixel circuit or the output voltage of the common signal line.
  • the input voltage of the data signal line corresponds to the input voltage of the data line Data in FIG. 1
  • the output voltage of the common signal line corresponds to the second common voltage A_com2 in FIG. 1.
  • the first driving voltage may be the input voltage of the data signal line in the corresponding pixel circuit or the output voltage of the common signal line.
  • the output voltage of the common signal line also fluctuates with the input voltage of the data signal line. Therefore, the monitoring of the target panel only needs to correspond to one of the input voltage of the data signal line in the pixel circuit or the output voltage of the common signal line.
  • the acquiring unit in this embodiment can also acquire the second common voltage A_com2 of the first area of the target panel.
  • the first control module 203 may be used to reduce the first common voltage A_com1 of the first area through a predetermined device when the first data voltage is less than a first threshold and the target panel is abnormal.
  • the second control module 204 may be used to restore the first common voltage A_com1 of the first area through the predetermined device when the first data voltage is equal to a first threshold and the target panel is normal.
  • the first control module 203 may be used to reduce the first common voltage A_com1 of the first zone by using a predetermined device when the second common voltage A_com2 is less than a second threshold and the target panel is abnormal.
  • the second control module 204 may be used to restore the first common voltage A_com1 of the first zone through the predetermined device when the second common voltage A_com2 is equal to a second threshold, and the target panel is normal.
  • the first data voltage pulls the second common voltage A_com2 of the corresponding pixel unit to the same level, and the second common voltage A_com2 of the corresponding pixel unit If it is less than the second threshold, the gray-scale voltage corresponding to the pixel unit will decrease, and the brightness will decrease, resulting in abnormal display of the target panel.
  • the present application reduces the difference between the first common voltage A_com1 and the second common voltage A_com2 by reducing the first common voltage A_com1, thereby increasing the stability of the common voltage in the corresponding area, and avoiding the crosstalk of the target panel display panel. occur.
  • the target panel When the first data voltage is equal to the first threshold or the second common voltage A_com2 is equal to the second threshold, the target panel is displayed normally. At this time, the reduced first common voltage A_com1 needs to be restored to the original value. There is a level to prevent the brightness of the corresponding pixel unit from being too low due to the decrease of the first common voltage A_com1.
  • the present application provides a method and device for driving a display panel.
  • the driving method of the display panel includes: acquiring a first driving voltage of a first area of the target panel; and detecting the target panel according to the first driving voltage When the first driving voltage is less than the threshold, the first common voltage of the first region is reduced; when the first driving voltage is equal to the threshold, the first common voltage of the first region is restored .
  • This application detects the first driving voltage of the display panel.
  • the first driving voltage can be the output voltage of the common signal line or the input voltage of the data signal line.
  • the display panel is determined When horizontal crosstalk occurs, reduce the input voltage of the common signal line corresponding to the first zone through a predetermined device, reduce the voltage difference before and after the input and output of the common signal line, ensure the stability of the common voltage in the first zone, and avoid the horizontal crosstalk of the display panel screen occur.

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  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
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Abstract

一种显示面板的驱动方法及装置,显示面板的驱动方法包括:获取目标面板第一区的第一驱动电压(A_com2)(S10);根据第一驱动电压(A_com2),检测目标面板的异常(S20);当第一驱动电压(A_com2)小于阈值时,降低第一区的第一公共电压(A_com1)(S30);当第一驱动电压(A_com2)等于阈值时,恢复第一区的第一公共电压(A_com1)(S40)。

Description

显示面板的驱动方法及装置、控制器 技术领域
本申请涉及显示领域,尤其涉及一种显示面板的驱动方法及装置、控制器。
背景技术
在现有的3T像素结构中,通过共享薄膜晶体管TFT_share将次区像素接入到公共电压A_com以对次区进行放电,主区与次区形成电位差来达到使主区和次区的液晶倒向不一致,从而达到补偿视角的作用。而由于公共电压A_com的电压源无法稳定过大的电流差异,导致在不同的灰阶下公共电压A_com的电压发生改变。
当公共电压A_com的电压变化过大时,无法及时恢复到变化之前的值使得公共电压A_com的不稳定,导致显示面板画面发生横向串扰。
因此,目前亟需一种显示面板的驱动方法以解决上述问题。
技术问题
本申请提供一种显示面板的驱动方法及装置,以解决现有显示面板公共电极电压不稳定的技术问题。
技术解决方案
本申请提供了一种显示面板的驱动方法,其包括:
S10、获取目标面板第一区的第一驱动电压;
S20、根据所述第一驱动电压,检测所述目标面板的异常;
S30、当所述第一驱动电压小于阈值时,所述目标面板异常,降低所述第一区的第一公共电压;
S40、当所述第一驱动电压等于阈值时,所述目标面板正常,恢复所述第一区的所述第一公共电压;
其中,所述第一公共电压为所述第一区内像素电路公共信号线的输入电压。
在本申请的驱动方法中,步骤S10包括:
扫描所述目标面板;
获取所述目标面板第一区的第一数据电压;
其中,所述第一数据电压为所述第一区内像素电路中数据信号线的输入电压。
在本申请的驱动方法中,所述显示面板的驱动方法包括:
S30、当所述第一数据电压小于第一阈值时,所述目标面板异常,通过预定装置降低所述第一区的第一公共电压;
S40、当所述第一数据电压等于第一阈值时,所述目标面板正常,通过所述预定装置恢复所述第一区的所述第一公共电压。
在本申请的驱动方法中,步骤S10包括:
扫描所述目标面板;
获取所述目标面板第一区的第二公共电压;
其中,所述第二公共电压为所述第一区内像素电路公共信号线的输出电压。
在本申请的驱动方法中,所述显示面板的驱动方法包括:
S30、当所述第二公共电压小于第二阈值时,所述目标面板异常,通过预定装置降低所述第一区的第一公共电压;
S40、当所述第二公共电压等于第二阈值时,所述目标面板正常,通过所述预定装置恢复所述第一区的所述第一公共电压。
本申请还提出了一种显示面板的驱动装置,其包括获取模块、检测模块、第一调控模块、第二调控模块;
所述获取模块用于获取目标面板第一区的第一驱动电压;
所述检测模块用于根据所述第一驱动电压,检测所述目标面板的异常;
所述第一调控模块用于当所述第一驱动电压小于阈值时,所述目标面板异常,降低所述第一区的第一公共电压;
所述第二调控模块用于当所述第一驱动电压等于阈值时,所述目标面板正常,恢复所述第一区的所述第一公共电压;
其中,所述第一公共电压为所述第一区内像素电路公共信号线的输入电压。
在本申请的驱动装置中,所述获取模块包括扫描单元和获取单元;
所述扫描单元用于扫描所述目标面板;
所述获取单元获取所述目标面板第一区的第一数据电压;
其中,所述第一数据电压为所述第一区内像素电路中数据信号线的输入电压。
在本申请的驱动装置中,
所述第一调控模块用于当所述第一数据电压小于第一阈值时,所述目标面板异常,通过预定装置降低所述第一区的第一公共电压;
所述第二调控模块用于当所述第一数据电压等于第一阈值时,所述目标面板正常,通过所述预定装置恢复所述第一区的所述第一公共电压。
在本申请的驱动装置中,
所述获取模块包括扫描单元和获取单元;
所述扫描单元用于扫描所述目标面板;
所述获取单元获取所述目标面板第一区的第二公共电压;
其中,所述第二公共电压为所述第一区内像素电路公共信号线的输出电压。
在本申请的驱动装置中,
所述第一调控模块用于当所述第二公共电压小于第二阈值时,所述目标面板异常,通过预定装置降低所述第一区的第一公共电压;
所述第二调控模块用于当所述第二公共电压等于第二阈值时,所述目标面板正常,通过所述预定装置恢复所述第一区的所述第一公共电压。
本申请还提出了一种控制器,所述控制器用于执行存储于存储器的若干指令,以实现一种显示面板的驱动方法,其中,所述显示面板的驱动方法包括:
S10、获取目标面板第一区的第一驱动电压;
S20、根据所述第一驱动电压,检测所述目标面板的异常;
S30、当所述第一驱动电压小于阈值时,所述目标面板异常,降低所述第一区的第一公共电压;
S40、当所述第一驱动电压等于阈值时,所述目标面板正常,恢复所述第一区的所述第一公共电压;
其中,所述第一公共电压为所述第一区内像素电路公共信号线的输入电压。
在本申请的控制器中,步骤S10包括:
扫描所述目标面板;
获取所述目标面板第一区的第一数据电压;
其中,所述第一数据电压为所述第一区内像素电路中数据信号线的输入电压。
在本申请的控制器中,所述显示面板的驱动方法包括:
S30、当所述第一数据电压小于第一阈值时,所述目标面板异常,通过预定装置降低所述第一区的第一公共电压;
S40、当所述第一数据电压等于第一阈值时,所述目标面板正常,通过所述预定装置恢复所述第一区的所述第一公共电压。
在本申请的控制器中,步骤S10包括:
扫描所述目标面板;
获取所述目标面板第一区的第二公共电压;
其中,所述第二公共电压为所述第一区内像素电路公共信号线的输出电压。
在本申请的控制器中,所述显示面板的驱动方法包括:
S30、当所述第二公共电压小于第二阈值时,所述目标面板异常,通过预定装置降低所述第一区的第一公共电压;
S40、当所述第二公共电压等于第二阈值时,所述目标面板正常,通过所述预定装置恢复所述第一区的所述第一公共电压。
有益效果
本申请通过检测所述显示面板的第一驱动电压,该第一驱动电压可以为公共信号线的输出电压或数据信号线的输入电压,当上述两种电压小于预定阈值时,则判定该显示面板发生横向串扰,通过预定装置降低第一区对应的公共信号线的输入电压,降低公共信号线输入和输出前后的电压差,保证第一区内公共电压的稳定性,避免显示面板画面横向串扰的发生。
附图说明
为了更清楚地说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介绍,显而易见地,下面描述中的附图仅仅是发明的一些实施例,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为现有显示面板3T像素结构的电路图;
图2为本申请显示面板驱动方法的步骤图;
图3为本申请显示面板驱动装置的第一种结构图;
图4为本申请显示面板驱动装置的第二种结构图。
本发明的实施方式
以下各实施例的说明是参考附加的图示,用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语,例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等,仅是参考附加图式的方向。因此,使用的方向用语是用以说明及理解本申请,而非用以限制本申请。在图中,结构相似的单元是用以相同标号表示。
请参阅图1,图1为现有显示面板3T像素结构的电路图。
该结构的液晶显示面板包括多个子像素呈阵列式排布,每一子像素包括主(main)区和次(sub)区。
所述主区内设置有主区薄膜晶体管TFT_m、主区液晶电容Clc_m,主区存储电容Cst_m。
所述次区内设置有次区薄膜晶体管TFT_s、次区液晶电容Clc_s、次区存储电容Cst_s,以及共享薄膜晶体管TFT_share。
该液晶显示面板还包括对应每一行子像素的一条扫描线Gate、及对应每一列子像素的一条数据线Data。
在图1的结构中,主区薄膜晶体管TFT_m的栅极连接扫描线Gate,主区薄膜晶体管TFT_m的源极/漏极连接数据线Data。
在主区薄膜晶体管TFT_m的漏极/源极与第一公共电压A_com1之间并联连接主区液晶电容Clc_m。在主区薄膜晶体管TFT_m的漏极/源极与C_com之间并联连接主区存储电容Cst_m。
在图1的结构中,次区薄膜晶体管TFT_s的栅极连接扫描线Gate,次区薄膜晶体管TFT_s的源极/漏极连接数据线Data。
在次区薄膜晶体管TFT_s的漏极/源极与第一公共电压A_com1之间并联连接次区存储电容Cst_s。在次区薄膜晶体管TFT_s的漏极/源极与C_com之间并联连接次区液晶电容Clc_s。
在图1的结构中,共享薄膜晶体管TFT_share的栅极连接扫描线Gate,共享薄膜晶体管TFT_share的源极/漏极分别连接该次区薄膜晶体管TFT_s的漏极/源极和第二公共电压A_com2。
在图1的结构中,第一公共电压A_com1为像素电路中公共信号线的输入电压,第二公共电压A_com2为像素电路中公共信号线的输出电压。
本申请基于上述像素结构电路图,提出了一种显示面板的驱动方法,请参阅图2,所述显示面板的驱动方法包括:
S10、获取目标面板第一区的第一驱动电压;
步骤S10具体包括:
S101、利用第一装置扫描所述目标面板;
S102、获取所述目标面板第一区的第一驱动电压;
在本实施例中,所述第一区可以为所述目标面板任意区域,本申请不作具体限制。本申请的步骤S101可以理解为所述第一装置可以为扫描所述目标面板的任意区域。
在本实施例中,所述第一驱动电压可以为对应像素电路中数据信号线的输入电压或者公共信号线中的输出电压。数据信号线的输入电压对应图1中的数据线Data的输入电压,公共信号线中的输出电压对应图1中的第二公共电压A_com2。
S20、根据所述第一驱动电压,检测所述目标面板的异常;
在步骤S10可知,所述第一驱动电压可以为对应像素电路中数据信号线的输入电压或者公共信号线中的输出电压。由于数据信号线的输入电压出现扰动时,公共信号线中的输出电压同样随着数据信号线的输入电压出现变动。因此对所述目标面板的监控只需要对应像素电路中数据信号线的输入电压或者公共信号线中的输出电压中的一者即可。
S30、当所述第一驱动电压小于阈值时,所述目标面板异常,降低所述第一区的第一公共电压A_com1;
S40、当所述第一驱动电压等于阈值时,所述目标面板正常,恢复所述第一区的所述第一公共电压A_com1;
在步骤S30和步骤S40中,当所述第一驱动电压为对应像素电路中数据信号线的输入电压时,所述显示面板的驱动方法包括:
S30、当所述第一数据电压小于第一阈值时,所述目标面板异常,通过预定装置降低所述第一区的第一公共电压A_com1;
S40、当所述第一数据电压等于第一阈值时,所述目标面板正常,通过所述预定装置恢复所述第一区的所述第一公共电压A_com1。
在本实施例中,所述第一阈值为对应像素电路正常工作时数据信号线的输入电压值。
或者,当所述第一驱动电压为公共信号线中的输出电压时,所述显示面板的驱动方法包括:
S30、当所述第二公共电压A_com2小于第二阈值时,所述目标面板异常,通过预定装置降低所述第一区的第一公共电压A_com1;
S40、当所述第二公共电压A_com2等于第二阈值时,所述目标面板正常,通过所述预定装置恢复所述第一区的所述第一公共电压A_com1。
在本实施例中,所述第二阈值为对应像素电路正常工作时公共信号线的输出电压值。
在上述步骤中,所述第一公共电压A_com1为所述第一区内像素电路公共信号线的输入电压。
由于当所述第一数据电压小于第一阈值时,所述第一数据电压将对应像素单元的第二公共电压A_com2拉低到与之相同的准位,及对应像素单元的第二公共电压A_com2将小于第二阈值,对应像素单元对应的灰阶电压将降低,亮度降低,导致目标面板显示异常。
本申请通过将第一公共电压A_com1降低,以降低所述第一公共电压A_com1与所述第二公共电压A_com2的差值,增加了对应区域公共电压的稳定性,避免了目标面板显示面板横向串扰的发生。
而当所述第一数据电压等于第一阈值或所述第二公共电压A_com2等于第二阈值时,所述目标面板为正常显示,此时需要将降低的所述第一公共电压A_com1恢复至原有准位,避免因所述第一公共电压A_com1的降低导致对应像素单元的亮度过低。
本申请通过检测所述显示面板的第一驱动电压,该第一驱动电压可以为公共信号线的输出电压或数据信号线的输入电压,当上述两种电压小于预定阈值时,则判定该显示面板发生横向串扰,通过预定装置降低第一区对应的公共信号线的输入电压,降低公共信号线输入和输出前后的电压差,保证第一区内公共电压的稳定性,避免显示面板画面横向串扰的发生。
本申请还提出了一种控制器,所述控制器用于执行存储于存储器的若干指令,以实现上述显示面板的驱动方法。具体内容与上述驱动方法相同或相似,此处不再赘述。
请参阅图3,图3为本申请显示面板驱动装置的第一种结构图。
所述显示面板的驱动装置200包括获取模块201、检测模块202、第一调控模块203、第二调控模块204。
所述获取模块201用于获取目标面板第一区的第一驱动电压。
所述检测模块202用于根据所述第一驱动电压,检测所述目标面板的异常。
所述第一调控模块203用于当所述第一驱动电压小于阈值时,所述目标面板异常,降低所述第一区的第一公共电压A_com1。
所述第二调控模块204用于当所述第一驱动电压等于阈值时,所述目标面板正常,恢复所述第一区的所述第一公共电压A_com1。
在本实施例中,所述第一公共电压A_com1为所述第一区内像素电路公共信号线的输入电压。
请参阅图4,图4为本申请显示面板驱动装置的第二种结构图。
在本实施例中,所述获取模块201包括扫描单元2011和获取单元2012。
所述扫描单元2011用于扫描所述目标面板。
所述获取单元2012获取所述目标面板第一区的第一数据电压。
在本实施例中,所述第一区可以为所述目标面板任意区域,本申请不作具体限制。本申请的步骤S101可以理解为所述第一装置可以为扫描所述目标面板的任意区域。
在本实施例中,所述第一驱动电压可以为对应像素电路中数据信号线的输入电压或者公共信号线中的输出电压。数据信号线的输入电压对应图1中的数据线Data的输入电压,公共信号线中的输出电压对应图1中的第二公共电压A_com2。
在本实施例中,由于所述第一驱动电压可以为对应像素电路中数据信号线的输入电压或者公共信号线中的输出电压。由于数据信号线的输入电压出现扰动时,公共信号线中的输出电压同样随着数据信号线的输入电压出现变动。因此对所述目标面板的监控只需要对应像素电路中数据信号线的输入电压或者公共信号线中的输出电压中的一者即可。
因此本实施例中的所述获取单元还可以获取所述目标面板第一区的第二公共电压A_com2。
在本实施例中,当所述第一驱动电压为对应像素电路中数据信号线的输入电压时:
所述第一调控模块203可以用于当所述第一数据电压小于第一阈值时,所述目标面板异常,通过预定装置降低所述第一区的第一公共电压A_com1。
所述第二调控模块204可以用于当所述第一数据电压等于第一阈值时,所述目标面板正常,通过所述预定装置恢复所述第一区的所述第一公共电压A_com1。
或者,当所述第一驱动电压为公共信号线中的输出电压时:
所述第一调控模块203可以用于当所述第二公共电压A_com2小于第二阈值时,所述目标面板异常,通过预定装置降低所述第一区的第一公共电压A_com1。
所述第二调控模块204可以用于当所述第二公共电压A_com2等于第二阈值时,所述目标面板正常,通过所述预定装置恢复所述第一区的所述第一公共电压A_com1。
由于当所述第一数据电压小于第一阈值时,所述第一数据电压将对应像素单元的第二公共电压A_com2拉低到与之相同的准位,及对应像素单元的第二公共电压A_com2将小于第二阈值,对应像素单元对应的灰阶电压将降低,亮度降低,导致目标面板显示异常。
本申请通过将第一公共电压A_com1降低,降低所述第一公共电压A_com1与所述第二公共电压A_com2的差值,增加了对应区域公共电压的稳定性,避免了目标面板显示面板横向串扰的发生。
而当所述第一数据电压等于第一阈值或所述第二公共电压A_com2等于第二阈值时,所述目标面板为正常显示,此时需要将降低的所述第一公共电压A_com1恢复至原有准位,避免因所述第一公共电压A_com1的降低导致对应像素单元的亮度过低。
本申请提出了一种显示面板的驱动方法及装置,所述显示面板的驱动方法包括:获取所述目标面板第一区的第一驱动电压;根据所述第一驱动电压,检测所述目标面板的异常;当所述第一驱动电压小于阈值时,降低所述第一区的第一公共电压;当所述第一驱动电压等于阈值时,恢复所述第一区的所述第一公共电压。本申请通过检测所述显示面板的第一驱动电压,该第一驱动电压可以为公共信号线的输出电压或数据信号线的输入电压,当上述两种电压小于预定阈值时,则判定该显示面板发生横向串扰,通过预定装置降低第一区对应的公共信号线的输入电压,降低公共信号线输入和输出前后的电压差,保证第一区内公共电压的稳定性,避免显示面板画面横向串扰的发生。
综上所述,虽然本申请已以优选实施例揭露如上,但上述优选实施例并非用以限制本申请,本领域的普通技术人员,在不脱离本申请的精神和范围内,均可作各种更动与润饰,因此本申请的保护范围以权利要求界定的范围为准。

Claims (15)

  1. 一种显示面板的驱动方法,其中,包括:
    S10、获取目标面板第一区的第一驱动电压;
    S20、根据所述第一驱动电压,检测所述目标面板的异常;
    S30、当所述第一驱动电压小于阈值时,所述目标面板异常,降低所述第一区的第一公共电压;
    S40、当所述第一驱动电压等于阈值时,所述目标面板正常,恢复所述第一区的所述第一公共电压;
    其中,所述第一公共电压为所述第一区内像素电路公共信号线的输入电压。
  2. 根据权利要求1所述的驱动方法,其中,步骤S10包括:
    扫描所述目标面板;
    获取所述目标面板第一区的第一数据电压;
    其中,所述第一数据电压为所述第一区内像素电路中数据信号线的输入电压。
  3. 根据权利要求2所述的驱动方法,其中,
    所述显示面板的驱动方法包括:
    S30、当所述第一数据电压小于第一阈值时,所述目标面板异常,通过预定装置降低所述第一区的第一公共电压;
    S40、当所述第一数据电压等于第一阈值时,所述目标面板正常,通过所述预定装置恢复所述第一区的所述第一公共电压。
  4. 根据权利要求1所述的驱动方法,其中,步骤S10包括:
    扫描所述目标面板;
    获取所述目标面板第一区的第二公共电压;
    其中,所述第二公共电压为所述第一区内像素电路公共信号线的输出电压。
  5. 根据权利要求4所述的驱动方法,其中,
    所述显示面板的驱动方法包括:
    S30、当所述第二公共电压小于第二阈值时,所述目标面板异常,通过预定装置降低所述第一区的第一公共电压;
    S40、当所述第二公共电压等于第二阈值时,所述目标面板正常,通过所述预定装置恢复所述第一区的所述第一公共电压。
  6. 一种显示面板的驱动装置,其中,包括获取模块、检测模块、第一调控模块、第二调控模块;
    所述获取模块用于获取目标面板第一区的第一驱动电压;
    所述检测模块用于根据所述第一驱动电压,检测所述目标面板的异常;
    所述第一调控模块用于当所述第一驱动电压小于阈值时,所述目标面板异常,降低所述第一区的第一公共电压;
    所述第二调控模块用于当所述第一驱动电压等于阈值时,所述目标面板正常,恢复所述第一区的所述第一公共电压;
    其中,所述第一公共电压为所述第一区内像素电路公共信号线的输入电压。
  7. 根据权利要求6所述的驱动装置,其中,所述获取模块包括扫描单元和获取单元;
    所述扫描单元用于扫描所述目标面板;
    所述获取单元获取所述目标面板第一区的第一数据电压;
    其中,所述第一数据电压为所述第一区内像素电路中数据信号线的输入电压。
  8. 根据权利要求7所述的驱动装置,其中,
    所述第一调控模块用于当所述第一数据电压小于第一阈值时,所述目标面板异常,通过预定装置降低所述第一区的第一公共电压;
    所述第二调控模块用于当所述第一数据电压等于第一阈值时,所述目标面板正常,通过所述预定装置恢复所述第一区的所述第一公共电压。
  9. 根据权利要求6所述的驱动装置,其中,
    所述获取模块包括扫描单元和获取单元;
    所述扫描单元用于扫描所述目标面板;
    所述获取单元获取所述目标面板第一区的第二公共电压;
    其中,所述第二公共电压为所述第一区内像素电路公共信号线的输出电压。
  10. 根据权利要求9所述的驱动装置,其中,
    所述第一调控模块用于当所述第二公共电压小于第二阈值时,所述目标面板异常,通过预定装置降低所述第一区的第一公共电压;
    所述第二调控模块用于当所述第二公共电压等于第二阈值时,所述目标面板正常,通过所述预定装置恢复所述第一区的所述第一公共电压。
  11. 一种控制器,所述控制器用于执行存储于存储器的若干指令,以实现一种显示面板的驱动方法,其中,所述显示面板的驱动方法包括:
    S10、获取目标面板第一区的第一驱动电压;
    S20、根据所述第一驱动电压,检测所述目标面板的异常;
    S30、当所述第一驱动电压小于阈值时,所述目标面板异常,降低所述第一区的第一公共电压;
    S40、当所述第一驱动电压等于阈值时,所述目标面板正常,恢复所述第一区的所述第一公共电压;
    其中,所述第一公共电压为所述第一区内像素电路公共信号线的输入电压。
  12. 根据权利要求11所述的控制器,其中,步骤S10包括:
    扫描所述目标面板;
    获取所述目标面板第一区的第一数据电压;
    其中,所述第一数据电压为所述第一区内像素电路中数据信号线的输入电压。
  13. 根据权利要求12所述的控制器,其中,
    所述显示面板的驱动方法包括:
    S30、当所述第一数据电压小于第一阈值时,所述目标面板异常,通过预定装置降低所述第一区的第一公共电压;
    S40、当所述第一数据电压等于第一阈值时,所述目标面板正常,通过所述预定装置恢复所述第一区的所述第一公共电压。
  14. 根据权利要求11所述的控制器,其中,步骤S10包括:
    扫描所述目标面板;
    获取所述目标面板第一区的第二公共电压;
    其中,所述第二公共电压为所述第一区内像素电路公共信号线的输出电压。
  15. 根据权利要求14所述的控制器,其中,
    所述显示面板的驱动方法包括:
    S30、当所述第二公共电压小于第二阈值时,所述目标面板异常,通过预定装置降低所述第一区的第一公共电压;
    S40、当所述第二公共电压等于第二阈值时,所述目标面板正常,通过所述预定装置恢复所述第一区的所述第一公共电压。
PCT/CN2019/086122 2019-04-10 2019-05-09 显示面板的驱动方法及装置、控制器 WO2020206786A1 (zh)

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Publication number Priority date Publication date Assignee Title
CN112562607B (zh) * 2020-12-17 2022-05-20 昆山龙腾光电股份有限公司 用于显示面板的公共电压补偿电路,补偿方法及显示装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10153759A (ja) * 1996-11-26 1998-06-09 Matsushita Electric Ind Co Ltd 液晶表示装置
CN101311781A (zh) * 2007-05-25 2008-11-26 群康科技(深圳)有限公司 液晶显示器及其公共电压驱动方法
CN201293901Y (zh) * 2008-11-24 2009-08-19 上海广电光电子有限公司 液晶显示面板
US20150356932A1 (en) * 2014-06-10 2015-12-10 Samsung Electronics Co., Ltd. Liquid crystal display device for improving crosstalk characteristics
CN106097964A (zh) * 2016-08-22 2016-11-09 京东方科技集团股份有限公司 像素电路、显示面板、显示设备及驱动方法
CN106782427A (zh) * 2017-03-31 2017-05-31 深圳市华星光电技术有限公司 液晶显示面板的数据电压调整方法及装置
CN107274851A (zh) * 2017-08-14 2017-10-20 京东方科技集团股份有限公司 显示面板及其驱动方法和显示装置
CN107464537A (zh) * 2017-08-18 2017-12-12 深圳市华星光电技术有限公司 液晶显示面板驱动方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5328169B2 (ja) * 2007-02-28 2013-10-30 キヤノン株式会社 撮像装置及び放射線撮像システム
CN102842280B (zh) * 2012-08-31 2016-03-30 京东方科技集团股份有限公司 一种公共电压补偿电路、方法及液晶显示装置
CN103065591A (zh) * 2012-09-17 2013-04-24 友达光电股份有限公司 一种液晶面板驱动模式的动态切换方法
CN103065594B (zh) * 2012-12-14 2017-04-12 深圳市华星光电技术有限公司 一种数据驱动电路、液晶显示装置及一种驱动方法
KR20160055368A (ko) * 2014-11-07 2016-05-18 삼성디스플레이 주식회사 표시 장치 및 이의 구동 방법
CN104882104B (zh) * 2015-05-11 2017-05-31 深圳市华星光电技术有限公司 一种液晶显示面板及装置
CN106847226B (zh) * 2017-04-13 2019-04-02 深圳市华星光电半导体显示技术有限公司 3t像素最佳公共电压调整方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10153759A (ja) * 1996-11-26 1998-06-09 Matsushita Electric Ind Co Ltd 液晶表示装置
CN101311781A (zh) * 2007-05-25 2008-11-26 群康科技(深圳)有限公司 液晶显示器及其公共电压驱动方法
CN201293901Y (zh) * 2008-11-24 2009-08-19 上海广电光电子有限公司 液晶显示面板
US20150356932A1 (en) * 2014-06-10 2015-12-10 Samsung Electronics Co., Ltd. Liquid crystal display device for improving crosstalk characteristics
CN106097964A (zh) * 2016-08-22 2016-11-09 京东方科技集团股份有限公司 像素电路、显示面板、显示设备及驱动方法
CN106782427A (zh) * 2017-03-31 2017-05-31 深圳市华星光电技术有限公司 液晶显示面板的数据电压调整方法及装置
CN107274851A (zh) * 2017-08-14 2017-10-20 京东方科技集团股份有限公司 显示面板及其驱动方法和显示装置
CN107464537A (zh) * 2017-08-18 2017-12-12 深圳市华星光电技术有限公司 液晶显示面板驱动方法

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