WO2019024157A1 - 一种液晶显示面板的驱动方法以及电压调整电路 - Google Patents

一种液晶显示面板的驱动方法以及电压调整电路 Download PDF

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Publication number
WO2019024157A1
WO2019024157A1 PCT/CN2017/099379 CN2017099379W WO2019024157A1 WO 2019024157 A1 WO2019024157 A1 WO 2019024157A1 CN 2017099379 W CN2017099379 W CN 2017099379W WO 2019024157 A1 WO2019024157 A1 WO 2019024157A1
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Prior art keywords
voltage
adjusted
preset
module
difference
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Ceased
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PCT/CN2017/099379
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English (en)
French (fr)
Inventor
张先明
曹丹
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Priority to US15/575,367 priority Critical patent/US10565948B2/en
Publication of WO2019024157A1 publication Critical patent/WO2019024157A1/zh
Anticipated expiration legal-status Critical
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    • 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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a driving method of a liquid crystal display panel and a voltage adjusting circuit.
  • the VSS voltage is used to supply a low-level voltage to the gate to turn off the thin film transistor, so that the data charge is saved in the panel to maintain normal display.
  • This application can be targeted for both GOA projects and non-GOA projects.
  • the VSS voltage is provided by a drive control module that is typically disposed below the panel.
  • a drive control module that is typically disposed below the panel.
  • the load is larger and larger, the voltage loss is larger, and the degree of interference is also greater. Therefore, the farther the distance control module is, the larger the error of the panel is.
  • the leakage current in the panel also becomes large, resulting in uneven display brightness during normal operation, which reduces the display effect.
  • An object of the present invention is to provide a driving method and a voltage adjusting circuit for a liquid crystal display panel, which can make the display brightness more uniform and improve the display effect.
  • the present invention provides a voltage adjustment circuit, wherein the voltage adjustment circuit is configured to adjust a voltage to be adjusted of a liquid crystal display panel, the liquid crystal display panel includes at least three regions; The area includes a preset area and at least two areas to be adjusted, wherein the preset area is an area equal to a preset distance from a driving module, the driving module is configured to provide a power supply voltage; and the voltage adjusting circuit includes :
  • Obtaining a module configured to obtain an adjustment voltage and a preset voltage, where the to-be-adjusted voltage is a power supply voltage of the to-be-adjusted region, and the preset voltage is a power supply voltage of the preset region;
  • a first determining module configured to determine whether the voltage to be adjusted is greater than the preset voltage
  • a first calculating module configured to calculate a first difference between the to-be-adjusted voltage and the preset voltage when the to-be-adjusted voltage is greater than the preset voltage
  • a second determining module configured to determine whether the first difference is greater than a reference voltage
  • a first adjustment module configured to: when the determination result of the second determining module is that the first difference is greater than a reference voltage, reduce the to-be-adjusted voltage
  • a second calculating module configured to calculate a second difference between the preset voltage and the to-be-adjusted voltage when the to-be-adjusted voltage is less than the preset voltage
  • a third determining module configured to determine whether the second difference is greater than the reference voltage
  • a second adjustment module configured to: when the determination result of the third determining module is that the second difference is greater than the reference voltage, increase the voltage to be adjusted;
  • the voltage adjustment circuit further includes a control module
  • the first adjustment module is configured to: when the determination result of the second determining module is that the first difference is greater than a reference voltage, generate a first adjustment signal; and input the first adjustment signal to the control And a module that triggers the control module to reduce the voltage to be adjusted.
  • the voltage adjustment circuit further includes a control module
  • the second adjustment module is configured to: when the second difference is greater than the reference voltage, generate a second adjustment signal; input the second adjustment signal to a control module, trigger the control module to The voltage to be adjusted is increased.
  • the second adjustment signal when the second difference is greater than the reference voltage, the second adjustment signal is at a high level.
  • the first determining module includes a third voltage comparator
  • the second calculating module includes a second subtractor and a second switch
  • the third determining module includes a fourth Voltage comparator
  • the first input end of the second subtractor is connected to the preset voltage, and the second input end of the first subtractor is connected to the to-be-adjusted voltage;
  • the forward input end of the third voltage comparator is connected to the preset voltage, and the reverse input end of the third voltage comparator is connected to the voltage to be adjusted, and the output end of the third voltage comparator Connected to the control end of the second switch;
  • An input end of the second switch is connected to an output end of the second subtractor, and an output end of the second switch is connected to a forward input end of the fourth voltage comparator, the fourth voltage comparator
  • the inverting input terminal is connected to the reference voltage, and the output terminal of the fourth voltage comparator outputs the second control signal.
  • the first determining module includes a first voltage comparator
  • the first calculating module includes a first subtractor and a first switch
  • the second determining module includes a second Voltage comparator
  • the first input end of the first subtractor is connected to the voltage to be adjusted, and the second input end of the first subtractor is connected to the preset voltage;
  • the forward input end of the first voltage comparator is connected to the voltage to be adjusted, and the reverse input end of the first voltage comparator is connected to the preset voltage, and the output end of the first voltage comparator Connected to the control end of the first switch;
  • An input end of the first switch is connected to an output end of the first subtractor, an output end of the first switch is connected to a forward input end of the second voltage comparator, and the second voltage comparator
  • the inverting input terminal is connected to the reference voltage, and the output end of the second voltage comparator outputs the first control signal.
  • the first adjustment signal when the first difference is greater than the reference voltage, the first adjustment signal is at a high level.
  • the liquid crystal display panel includes three regions, and the three regions include a preset region, a first to-be-adjusted region, and a second to-be-adjusted region, where the second distance is greater than The first distance, the first distance is greater than the preset distance;
  • the first distance is a distance between the first to-be-adjusted area and the driving module
  • the second distance is a distance between the second to-be-adjusted area and the driving module
  • the invention also provides a driving method of a liquid crystal display panel, comprising:
  • the driving module is configured to provide a power voltage;
  • the voltage to be adjusted is turned down.
  • the method further includes:
  • the voltage to be adjusted is adjusted.
  • the second adjustment signal is input to the control module, and the control module is triggered to increase the voltage to be adjusted.
  • the step of reducing the voltage to be adjusted includes:
  • the first adjustment signal is input to the control module, and the control module is triggered to reduce the voltage to be adjusted.
  • the present invention also provides a voltage adjustment circuit for adjusting a voltage to be adjusted of a liquid crystal display panel, the liquid crystal display panel including at least three regions; the at least three regions including a preset region and At least two areas to be adjusted, wherein the preset area is an area that is equal to a preset distance from the driving module, the driving module is configured to provide a power supply voltage; and the voltage adjusting circuit includes:
  • Obtaining a module configured to obtain an adjustment voltage and a preset voltage, where the to-be-adjusted voltage is a power supply voltage of the to-be-adjusted region, and the preset voltage is a power supply voltage of the preset region;
  • a first determining module configured to determine whether the voltage to be adjusted is greater than the preset voltage
  • a first calculating module configured to calculate a first difference between the to-be-adjusted voltage and the preset voltage when the to-be-adjusted voltage is greater than the preset voltage
  • the first adjustment module is configured to: when the determination result of the second determining module is that the first difference is greater than a reference voltage, reduce the to-be-adjusted voltage.
  • the voltage adjustment circuit further includes:
  • a second calculating module configured to calculate a second difference between the preset voltage and the to-be-adjusted voltage when the to-be-adjusted voltage is less than the preset voltage
  • a third determining module configured to determine whether the second difference is greater than the reference voltage
  • the second adjustment module is configured to: when the determination result of the third determining module is that the second difference is greater than the reference voltage, increase the voltage to be adjusted.
  • the voltage adjustment circuit further includes a control module
  • the second adjustment module is configured to: when the second difference is greater than the reference voltage, generate a second adjustment signal; input the second adjustment signal to a control module, trigger the control module to The voltage to be adjusted is increased.
  • the second adjustment signal when the second difference is greater than the reference voltage, the second adjustment signal is at a high level.
  • the first determination module includes a third voltage comparator and a second switch
  • the second calculation module includes a second subtractor
  • the third determination module includes a fourth voltage comparator
  • the first input end of the second subtractor is connected to the preset voltage, and the second input end of the first subtractor is connected to the to-be-adjusted voltage;
  • the forward input end of the third voltage comparator is connected to the preset voltage, and the reverse input end of the third voltage comparator is connected to the voltage to be adjusted, and the output end of the third voltage comparator Connected to the control end of the second switch;
  • An input end of the second switch is connected to an output end of the second subtractor, and an output end of the second switch is connected to a forward input end of the fourth voltage comparator, the fourth voltage comparator
  • the inverting input terminal is connected to the reference voltage, and the output terminal of the fourth voltage comparator outputs the second control signal.
  • the first determination module includes a first voltage comparator and a first switch
  • the first calculation module includes a first subtractor
  • the second determination module includes a second voltage comparator
  • the first input end of the first subtractor is connected to the voltage to be adjusted, and the second input end of the first subtractor is connected to the preset voltage;
  • the forward input end of the first voltage comparator is connected to the voltage to be adjusted, and the reverse input end of the first voltage comparator is connected to the preset voltage, and the output end of the first voltage comparator Connected to the control end of the first switch;
  • An input end of the first switch is connected to an output end of the first subtractor, an output end of the first switch is connected to a forward input end of the second voltage comparator, and the second voltage comparator
  • the inverting input terminal is connected to the reference voltage, and the output end of the second voltage comparator outputs the first control signal.
  • the voltage adjustment circuit further includes a control module
  • the first adjustment module is configured to: when the determination result of the second determining module is that the first difference is greater than a reference voltage, generate a first adjustment signal; and input the first adjustment signal to a control module, Triggering the control module to reduce the voltage to be adjusted.
  • the first adjustment signal when the first difference is greater than the reference voltage, the first adjustment signal is at a high level.
  • the liquid crystal display panel includes three regions, the three regions including a preset region, a first to-be-adjusted region, and a second to-be-adjusted region, wherein the second distance is greater than the first a distance, the first distance being greater than the preset distance;
  • the first distance is a distance between the first to-be-adjusted area and the driving module
  • the second distance is a distance between the second to-be-adjusted area and the driving module
  • the driving method and voltage adjusting circuit of the liquid crystal display panel of the present invention by adjusting the power supply voltage in a region far from the driving module, the power supply voltages of the respective regions are kept uniform, thereby making the display brightness more uniform and improving the display effect.
  • FIG. 1 is a schematic structural view of a display panel of the present invention
  • FIG. 2 is a circuit diagram of a voltage adjustment circuit according to an embodiment of the present invention.
  • FIG. 3 is a circuit diagram of a voltage adjustment circuit according to another embodiment of the present invention.
  • Embodiments of the present invention provide a driving method of a liquid crystal display panel, which includes the following steps:
  • the liquid crystal display panel of the present invention is divided into three regions 101-103; the three regions include a preset region 101, a first to-be-adjusted region 102, and a second to-be-adjusted region 103.
  • the preset area 101 is an area that is equal to the preset distance from the driving module 11; that is, the preset area 101 is the area closest to the driving module 11, and the area to be adjusted is an area farther from the driving module 11.
  • the distance between the first to-be-adjusted area 102 and the driving module 11 is a first distance
  • the distance between the second to-be-adjusted area 103 and the driving module 11 is a second distance, where the second distance is greater than the first distance
  • the first A distance is greater than the preset distance, that is, the distance between the preset area 101, the first to-be-adjusted area 102, the second to-be-adjusted area 103, and the driving module 11 is gradually increased.
  • the driving module 11 is configured to provide a power supply voltage, such as a low-level power supply voltage VSS, for turning off the thin film transistor.
  • a power supply voltage such as a low-level power supply voltage VSS
  • liquid crystal display panel may be divided into three or more regions, and the number of the regions is not limited to the present invention.
  • the power supply voltages of the first to-be-adjusted area 102 and the second to-be-adjusted area 103 are obtained, and two to-be-adjusted voltages VSS2 and VSS3 are respectively obtained.
  • the power supply voltage of the preset area is also obtained, and the preset voltage VSS1 is obtained. That is, the voltage to be adjusted is the power supply voltage of the area to be adjusted, and the preset voltage is the power supply voltage of the preset area.
  • each of the voltages to be adjusted is greater than a preset voltage.
  • Each of the areas to be adjusted may be provided with a voltage adjustment circuit, and the voltage comparator in the voltage adjustment circuit determines whether the voltage to be adjusted of the corresponding area is greater than the preset voltage.
  • the VSS3 of the second to-be-adjusted region 103 is greater than the power supply voltage VSS1 of the preset region 101, the VSS3 is acquired.
  • the difference from VSS1 is, for example, V1.
  • the difference V1 is greater than the reference voltage Vref, it indicates that the difference between the power supply voltage VSS3 of the second to-be-adjusted region 103 and the power supply voltage VSS1 of the preset region 101 exceeds a preset range, that is, VSS3 is too large due to two
  • VSS3 is too large due to two
  • step S106 the step of reducing the voltage to be adjusted includes:
  • S1061 Generate a first adjustment signal when the first difference is greater than the reference voltage.
  • S1062 Input the first adjustment signal to the control module, and trigger the control module to reduce the voltage to be adjusted.
  • a first adjustment signal is generated, and then the first adjustment signal is input to the control module 27 to trigger the control module 27 to turn down the voltage to be adjusted VSS3.
  • the control module 27 is, for example, a timing controller, and specifically changes the PWM through the timing controller. IC internal code to adjust the size of VSS3.
  • the difference between VSS1 and VSS3 is obtained, for example, V3 .
  • the difference V3 is greater than the reference voltage Vref, it indicates that the difference between the power supply voltage VSS1 of the preset region 101 and the power supply voltage VSS3 of the second to-be-adjusted region 103 exceeds a preset range, that is, VSS3 is too small, and thus The voltage to be adjusted is increased.
  • step S109 the step of increasing the voltage to be adjusted includes:
  • S1091 Generate a second adjustment signal when the second difference is greater than the reference voltage.
  • S1092 Input the second adjustment signal to the control module, and trigger the control module to increase the voltage to be adjusted.
  • a second adjustment signal is generated, and then the second adjustment signal is input to the control module 27 to trigger the control module 27 to increase the voltage to be adjusted VSS3.
  • the method for adjusting the power supply voltage of the first to-be-adjusted region 102 is the same as the method for adjusting the power supply voltage of the second to-be-adjusted region 103, and details are not described herein.
  • an embodiment of the present invention further provides a voltage adjustment circuit for adjusting a voltage to be adjusted of each area to be adjusted in a liquid crystal display panel, wherein the liquid crystal display panel includes The three regions include a preset area 101, a first to-be-adjusted area 102, and a second to-be-adjusted area 103, wherein the preset area is an area equal to a preset distance from the driving module 11
  • the voltage to be adjusted is a power supply voltage of the to-be-adjusted region, and the preset voltage is a power supply voltage of the preset region.
  • the voltage adjustment circuit includes: an acquisition module, a first determination module, a first calculation module, a second determination module, a first adjustment module, a second calculation module, a third determination module, and a second adjustment module;
  • an acquisition module configured to obtain an adjustment voltage and a preset voltage, where the to-be-adjusted voltage is a power supply voltage of the to-be-adjusted region, and the preset voltage is a power supply voltage of the preset region.
  • the acquisition module is for example TCON.
  • the first determining module is configured to determine whether the voltage to be adjusted is greater than the preset voltage.
  • a first calculating module configured to calculate a first difference between the to-be-adjusted voltage and the preset voltage when the to-be-adjusted voltage is greater than the preset voltage.
  • the second determining module is configured to determine whether the first difference is greater than a reference voltage.
  • the first adjustment module is configured to: when the determination result of the second determining module is that the first difference is greater than a reference voltage, reduce the to-be-adjusted voltage.
  • the second calculating module is configured to calculate a second difference between the preset voltage and the to-be-adjusted voltage when the to-be-adjusted voltage is less than the preset voltage.
  • the third determining module is configured to determine whether the second difference is greater than the reference voltage.
  • the second adjustment module is configured to: when the determination result of the third determining module is that the second difference is greater than the reference voltage, increase the voltage to be adjusted.
  • the voltage adjustment circuit further includes a control module 27;
  • the first adjustment module is configured to: when the determination result of the second determining module is that the first difference is greater than a reference voltage, generate a first adjustment signal; and input the first adjustment signal to the control module 27 The control module 27 is triggered to reduce the voltage to be adjusted.
  • the second adjustment module is configured to generate a second adjustment signal when the second difference is greater than the reference voltage, and input the second adjustment signal to the control module 27 to trigger the control module 27 to The voltage to be adjusted is adjusted to be large.
  • the first determining module includes a first voltage comparator 22, the first calculating module includes a first subtractor 21 and a first switch T1, The second determining module includes a second voltage comparator 23;
  • a first input end (forward input end) of the first subtractor 21 is connected to the to-be-adjusted voltage VSS3, and a second input end (inverting input end) of the first subtractor 21 is connected to the pre-adjusted Set the voltage VSS1.
  • the forward input terminal of the first voltage comparator 22 is connected to the to-be-adjusted voltage VSS3, and the inverting input terminal of the first voltage comparator 22 is connected to the preset voltage VSS1, and the first voltage is compared.
  • the output of the device 22 is connected to the control terminal of the first switch T1.
  • An input end of the first switch T1 is connected to an output end of the first subtractor 21, and an output end of the first switch T1 is connected to a forward input end of the second voltage comparator 23, where the The inverting input of the two voltage comparator 23 is connected to the reference voltage Vref, and the output of the second voltage comparator 23 outputs the first control signal.
  • the first determining module further includes a third voltage comparator 24, the second calculating module includes a second subtractor 25 and a second switch T2, and the third determining module includes a fourth voltage comparator 26.
  • the first input terminal (forward input terminal) of the second subtractor 25 is connected to the preset voltage VSS1, and the second input terminal (inverting input terminal) of the first subtractor 25 is connected to the Adjusting voltage VSS3;
  • the forward input terminal of the third voltage comparator 24 is connected to the preset voltage VSS1, and the reverse input terminal of the third voltage comparator 24 is connected to the to-be-adjusted voltage VSS3, and the third voltage is compared.
  • the output of the device 24 is connected to the control terminal of the second switch T2.
  • An input end of the second switch T2 is connected to an output end of the second subtractor 25, and an output end of the second switch T2 is connected to a forward input end of the fourth voltage comparator 26,
  • the inverting input of the four voltage comparator 26 is coupled to the reference voltage Vref, and the output of the fourth voltage comparator 26 outputs the second control signal.
  • the second adjustment signal when the second difference is greater than the reference voltage, the second adjustment signal is at a high level, and the voltage to be adjusted is adjusted to be large.
  • the first voltage comparator 22 when VSS3 is greater than VSS1, the first voltage comparator 22 outputs the voltage V2 to a high level, at which time the first switch T1 is turned on. Since the output voltage V1 of the first subtractor 21 is a difference between VSS3 and VSS1, the difference V1 is compared with the Vref value, and if the output voltage V5 of the second voltage comparator 23 is at a high level, it indicates that the difference is too large. And beyond the preset range, that is, the to-be-adjusted voltage VSS3 is too large, so VSS3 is turned down. If the output voltage V5 is low, it indicates that the difference is within the preset range and will not affect the display effect, so VSS3 is not adjusted.
  • the first adjustment signal when the first difference is greater than the reference voltage, the first adjustment signal is at a high level, and the voltage to be adjusted is turned down.
  • the third voltage comparator 24 outputs the voltage V4 to a high level.
  • the second switch T2 is turned on, and the second subtractor 25 outputs the voltage V3 as a difference between VSS1 and VSS3.
  • the value V3 is compared with the value of Vref. If the output voltage V6 of the fourth voltage comparator 26 is at a high level, it indicates that the difference is too large and exceeds a preset range, that is, the voltage to be adjusted VSS3 is too small, so the VSS3 is turned up. . If the output voltage V6 is low, it indicates that the difference is within the preset range and will not affect the display effect, so VSS3 is not adjusted.
  • the difference between the power supply voltage and the preset voltage in the region farther from the driving module is within a preset range, that is, the power supply voltages of the respective regions are approximately equal, thereby making the display brightness more uniform and improving.
  • the display effect is not limited to, the difference between the power supply voltage and the preset voltage in the region farther from the driving module.
  • the driving method and voltage adjusting circuit of the liquid crystal display panel of the present invention by adjusting the power supply voltage in a region far from the driving module, the power supply voltages of the respective regions are kept uniform, thereby making the display brightness more uniform and improving the display effect.

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

Abstract

一种液晶显示面板的驱动方法以及电压调整电路，方法包括：获取待调整电压（VSS2，VSS3）和预设电压（VSS1）；当待调整电压（VSS2，VSS3）大于预设电压（VSS1）时，计算待调整电压（VSS2，VSS3）与预设电压（VSS1）之间的第一差值（V1）；判断第一差值（V1）是否大于参考电压（Vref）；若第一差值（V1）大于参考电压（Vref），则将待调整电压（VSS2，VSS3）调小。

Description

一种液晶显示面板的驱动方法以及电压调整电路 技术领域
本发明涉及显示技术领域，特别是涉及一种液晶显示面板的驱动方法以及电压调整电路。
 背景技术
在面板驱动中VSS电压用来向栅极提供低电平电压，以关闭薄膜晶体管，从而使数据电荷保存在面板内以保持正常的显示，此应用可以同时针对于GOA项目以及非GOA项目。
通常VSS电压由驱动控制模块提供，该驱动控制模块一般设置在面板的下方。随着面板的尺寸越来越大，其负载越来越大，电压损耗也越大，其受到干扰的程度也会越来越大，因此距离驱动控制模块越远，面板的误差越大，使得面板内的漏电流也会变大，导致在正常工作中出现显示亮度不均的现象，降低了显示效果。
因此，有必要提供一种液晶显示面板的驱动方法以及电压调整电路，以解决现有技术所存在的问题。
 技术问题
本发明的目的在于提供一种液晶显示面板的驱动方法以及电压调整电路，能够使显示亮度更加均匀，提高了显示效果。
 技术解决方案
为解决上述技术问题，本发明提供一种电压调整电路，其中所述电压调整电路用于对液晶显示面板的待调整电压进行调整，所述液晶显示面板包括至少三个区域；所述至少三个区域包括预设区域以及至少两个待调整区域，其中所述预设区域为与驱动模块之间的距离等于预设距离的区域，所述驱动模块用于提供电源电压；所述电压调整电路包括：
获取模块，用于获取调整电压和预设电压，所述待调整电压为所述待调整区域的电源电压，所述预设电压为所述预设区域的电源电压；
第一判断模块，用于判断所述待调整电压是否大于所述预设电压；
第一计算模块，用于当所述待调整电压大于所述预设电压时，计算所述待调整电压与所述预设电压之间的第一差值；
第二判断模块，用于判断所述第一差值是否大于参考电压；
第一调整模块，用于当所述第二判断模块的判断结果为所述第一差值大于参考电压时，将所述待调整电压调小；
第二计算模块，用于当所述待调整电压小于所述预设电压时，计算所述预设电压与所述待调整电压之间的第二差值；
第三判断模块，用于判断所述第二差值是否大于所述参考电压；
第二调整模块，用于当所述第三判断模块的判断结果为所述第二差值大于所述参考电压时，将所述待调整电压调大；
其中所述电压调整电路还包括控制模块；
所述第一调整模块，具体用于当所述第二判断模块的判断结果为所述第一差值大于参考电压时，生成第一调整信号；将所述第一调整信号输入到所述控制模块，触发所述控制模块将所述待调整电压调小。
在本发明的液晶显示面板的驱动方法中，所述电压调整电路还包括控制模块；
所述第二调整模块，具体用于当所述第二差值大于所述参考电压时，生成第二调整信号；将所述第二调整信号输入到控制模块，触发所述控制模块将所述待调整电压调大。
在本发明的液晶显示面板的驱动方法中，当所述第二差值大于所述参考电压时，所述第二调整信号为高电平。
在本发明的液晶显示面板的驱动方法中，所述第一判断模块包括第三电压比较器，所述第二计算模块包括第二减法器和第二开关，所述第三判断模块包括第四电压比较器；
所述第二减法器的第一输入端接入所述预设电压，所述第一减法器的第二输入端接入所述待调整电压；
所述第三电压比较器的正向输入端接入所述预设电压，所述第三电压比较器的反向输入端接入所述待调整电压，所述第三电压比较器的输出端与所述第二开关的控制端连接；
所述第二开关的输入端与所述第二减法器的输出端连接，所述第二开关的输出端与所述第四电压比较器的正向输入端连接，所述第四电压比较器的反向输入端接入所述参考电压，所述第四电压比较器的输出端输出所述第二控制信号。
在本发明的液晶显示面板的驱动方法中，所述第一判断模块包括第一电压比较器，所述第一计算模块包括第一减法器和第一开关，所述第二判断模块包括第二电压比较器；
所述第一减法器的第一输入端接入所述待调整电压，所述第一减法器的第二输入端接入所述预设电压；
所述第一电压比较器的正向输入端接入所述待调整电压，所述第一电压比较器的反向输入端接入所述预设电压，所述第一电压比较器的输出端与所述第一开关的控制端连接；
所述第一开关的输入端与所述第一减法器的输出端连接，所述第一开关的输出端与所述第二电压比较器的正向输入端连接，所述第二电压比较器的反向输入端接入所述参考电压，所述第二电压比较器的输出端输出所述第一控制信号。
在本发明的液晶显示面板的驱动方法中，当所述第一差值大于所述参考电压时，所述第一调整信号为高电平。
在本发明的液晶显示面板的驱动方法中，所述液晶显示面板包括三个区域，所述三个区域包括预设区域、第一待调整区域以及第二待调整区域，所述第二距离大于所述第一距离，所述第一距离大于所述预设距离；
其中所述第一距离为所述第一待调整区域与所述驱动模块之间的距离，所述第二距离为所述第二待调整区域与所述驱动模块之间的距离。
本发明还提供一种液晶显示面板的驱动方法，其包括：
将液晶显示面板划分为至少三个区域；所述至少三个区域包括预设区域以及至少两个待调整区域，其中所述预设区域为与驱动模块之间的距离等于预设距离的区域；所述驱动模块用于提供电源电压；
获取待调整电压和预设电压；其中所述待调整电压为所述待调整区域的电源电压，所述预设电压为所述预设区域的电源电压；
判断所述待调整电压是否大于所述预设电压；
若所述待调整电压大于所述预设电压，计算所述待调整电压与所述预设电压之间的第一差值；
判断所述第一差值是否大于参考电压；
若所述第一差值大于所述参考电压，则将所述待调整电压调小。
在本发明的液晶显示面板的驱动方法中，所述方法还包括：
若所述待调整电压小于所述预设电压，计算所述预设电压与所述待调整电压之间的第二差值；
判断所述第二差值是否大于所述参考电压；
若所述第二差值大于所述参考电压，则将所述待调整电压调大。
在本发明的液晶显示面板的驱动方法中，当所述第二差值大于所述参考电压时，所述将所述待调整电压调大的步骤包括：
生成第二调整信号；
将所述第二调整信号输入到控制模块，触发所述控制模块将所述待调整电压调大。
在本发明的液晶显示面板的驱动方法中，当所述第一差值大于所述参考电压时，所述将所述待调整电压调小的步骤包括：
生成第一调整信号；
将所述第一调整信号输入到控制模块，触发所述控制模块将所述待调整电压调小。
本发明还提供一种电压调整电路，所述电压调整电路用于对液晶显示面板的待调整电压进行调整，所述液晶显示面板包括至少三个区域；所述至少三个区域包括预设区域以及至少两个待调整区域，其中所述预设区域为与驱动模块之间的距离等于预设距离的区域，所述驱动模块用于提供电源电压；所述电压调整电路包括：
获取模块，用于获取调整电压和预设电压，所述待调整电压为所述待调整区域的电源电压，所述预设电压为所述预设区域的电源电压；
第一判断模块，用于判断所述待调整电压是否大于所述预设电压；
第一计算模块，用于当所述待调整电压大于所述预设电压时，计算所述待调整电压与所述预设电压之间的第一差值；
第二判断模块，用于判断所述第一差值是否大于参考电压；
第一调整模块，用于当所述第二判断模块的判断结果为所述第一差值大于参考电压时，将所述待调整电压调小。
在本发明的电压调整电路中，所述电压调整电路还包括：
第二计算模块，用于在所述待调整电压小于所述预设电压，计算所述预设电压与所述待调整电压之间的第二差值；
第三判断模块，用于判断所述第二差值是否大于所述参考电压；
第二调整模块，用于当所述第三判断模块的判断结果为所述第二差值大于所述参考电压时，将所述待调整电压调大。
在本发明的电压调整电路中，所述电压调整电路还包括控制模块；
所述第二调整模块，具体用于当所述第二差值大于所述参考电压时，生成第二调整信号；将所述第二调整信号输入到控制模块，触发所述控制模块将所述待调整电压调大。
在本发明的电压调整电路中，当所述第二差值大于所述参考电压时，所述第二调整信号为高电平。
在本发明的电压调整电路中，所述第一判断模块包括第三电压比较器和第二开关，所述第二计算模块包括第二减法器，所述第三判断模块包括第四电压比较器；
所述第二减法器的第一输入端接入所述预设电压，所述第一减法器的第二输入端接入所述待调整电压；
所述第三电压比较器的正向输入端接入所述预设电压，所述第三电压比较器的反向输入端接入所述待调整电压，所述第三电压比较器的输出端与所述第二开关的控制端连接；
所述第二开关的输入端与所述第二减法器的输出端连接，所述第二开关的输出端与所述第四电压比较器的正向输入端连接，所述第四电压比较器的反向输入端接入所述参考电压，所述第四电压比较器的输出端输出所述第二控制信号。
在本发明的电压调整电路中，所述第一判断模块包括第一电压比较器和第一开关，所述第一计算模块包括第一减法器，所述第二判断模块包括第二电压比较器；
所述第一减法器的第一输入端接入所述待调整电压，所述第一减法器的第二输入端接入所述预设电压；
所述第一电压比较器的正向输入端接入所述待调整电压，所述第一电压比较器的反向输入端接入所述预设电压，所述第一电压比较器的输出端与所述第一开关的控制端连接；
所述第一开关的输入端与所述第一减法器的输出端连接，所述第一开关的输出端与所述第二电压比较器的正向输入端连接，所述第二电压比较器的反向输入端接入所述参考电压，所述第二电压比较器的输出端输出所述第一控制信号。
在本发明的电压调整电路中，所述电压调整电路还包括控制模块；
所述第一调整模块，具体用于当所述第二判断模块的判断结果为所述第一差值大于参考电压时，生成第一调整信号；将所述第一调整信号输入到控制模块，触发所述控制模块将所述待调整电压调小。
在本发明的电压调整电路中，当所述第一差值大于所述参考电压时，所述第一调整信号为高电平。
在本发明的电压调整电路中，所述液晶显示面板包括三个区域，所述三个区域包括预设区域、第一待调整区域以及第二待调整区域，所述第二距离大于所述第一距离，所述第一距离大于所述预设距离；
其中所述第一距离为所述第一待调整区域与所述驱动模块之间的距离，所述第二距离为所述第二待调整区域与所述驱动模块之间的距离。
 有益效果
本发明的液晶显示面板的驱动方法以及电压调整电路，通过对距离驱动模块较远的区域的电源电压进行调整，使得各区域的电源电压保持一致，从而使显示亮度更加均匀，提高了显示效果。
 附图说明
图1为本发明的显示面板的结构示意图；
图2为本发明一实施例的电压调整电路的电路图；
图3为本发明另一实施例的电压调整电路的电路图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，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发明，而非用以限制本发明。在图中，结构相似的单元是以相同标号表示。
本发明实施例提供一种液晶显示面板的驱动方法，其包括以下步骤：
S101、将液晶显示面板划分为至少三个区域。
如图1所示，本发明的液晶显示面板分为三个区域101-103；所述三个区域包括预设区域101、第一待调整区域102以及第二待调整区域103。
所述预设区域101为与驱动模块11之间的距离等于预设距离的区域；也即预设区域101为距离驱动模块11最近的区域，待调整区域为距离驱动模块11较远的区域。其中第一待调整区域102与驱动模块11之间的距离为第一距离，第二待调整区域103与驱动模块11之间的距离为第二距离，该第二距离大于第一距离，该第一距离大于预设距离，也即预设区域101、第一待调整区域102、第二待调整区域103与驱动模块11之间的距离逐渐增大。
所述驱动模块11用于提供电源电压，比如低电平电源电压VSS，用于断开薄膜晶体管。
可以理解的，也可以将该液晶显示面板划分为3个以上的区域，该区域的数量并不能对本发明构成限定。
S102、获取待调整电压和预设电压。
例如，获取第一待调整区域102、第二待调整区域103的电源电压，分别得到两个待调整电压VSS2、VSS3。同时还获取预设区域的电源电压，得到预设电压VSS1。也即所述待调整电压为所述待调整区域的电源电压，所述预设电压为所述预设区域的电源电压。
S103、判断待调整电压是否大于预设电压。
例如，判断每个待调整电压是否大于预设电压。其中每个待调整区域可设置有电压调整电路，通过电压调整电路中的电压比较器判断对应区域的待调整电压是否大于所述预设电压。
S104、若所述待调整电压大于所述预设电压，获取所述待调整电压与所述预设电压之间的第一差值。
以第二待调整区域103为例，如果第二待调整区域103的电源电压VSS3大于预设区域101的电源电压VSS1，则获取VSS3 与VSS1之间的差值，该差值比如为V1 。
S105、判断所述第一差值是否大于参考电压。
例如，通过一电压比较器判断该差值V1是否大于参考电压Vref。
S106、若所述第一差值大于所述参考电压，则将所述待调整电压调小。
例如，如果该差值V1大于参考电压Vref，表明第二待调整区域103的电源电压VSS3与预设区域101的电源电压VSS1之间的差值超过预设范围，也即VSS3过大，由于两个区域的电源电压的差值超过预设范围时，会使两个区域的亮度不同，因此此时将待调整电压调小，以使两个区域的亮度一致。
该步骤S106，将所述待调整电压调小的步骤包括：
S1061、当所述第一差值大于所述参考电压时，生成第一调整信号。
S1062、将所述第一调整信号输入到控制模块，触发所述控制模块将所述待调整电压调小。
结合图3，例如，当该差值V1大于参考电压Vref时，生成第一调整信号，之后将第一调整信号输入控制模块27，以触发控制模块27将待调整电压VSS3调小。该控制模块27比如为时序控制器，具体通过时序控制器改变PWM IC内部code以调整VSS3的大小。
S107、若所述待调整电压小于所述预设电压，获取所述预设电压与所述待调整电压之间的第二差值。
以第二待调整区域103为例，如果第二待调整区域103的电源电压VSS3小于预设区域101的电源电压VSS1，则获取VSS1与VSS3之间的差值，该差值比如为V3 。
S108、判断所述第二差值是否大于参考电压。
例如，通过另一电压比较器判断该差值V3是否大于参考电压Vref。
S109、若所述第二差值大于所述参考电压，则将所述待调整电压调大。
例如，如果该差值V3大于参考电压Vref，表明预设区域101的电源电压VSS1与第二待调整区域103的电源电压VSS3之间的差值超过预设范围，也即VSS3过小，因此将待调整电压调大。
该步骤S109，将所述待调整电压调大的步骤包括：
S1091、当所述第二差值大于所述参考电压时，生成第二调整信号。
S1092、将所述第二调整信号输入到控制模块，触发所述控制模块将所述待调整电压调大。
例如，当该差值V3大于参考电压Vref时，生成第二调整信号，之后将第二调整信号输入控制模块27，以触发控制模块27将待调整电压VSS3调大。可以理解的，第一待调整区域102的电源电压的调整方法与第二待调整区域103的电源电压的调整方法相同，在此不在赘述。
结合图1和2，本发明实施例还提供一种电压调整电路，所述电压调整电路用于对液晶显示面板中的每个待调整区域的待调整电压进行调整，其中所述液晶显示面板包括三个区域；所述三个区域包括预设区域101、第一待调整区域102以及第二待调整区域103，其中所述预设区域为与驱动模块11之间的距离等于预设距离的区域，所述待调整电压为所述待调整区域的电源电压，所述预设电压为所述预设区域的电源电压。
该电压调整电路包括：获取模块、第一判断模块、第一计算模块、第二判断模块、第一调整模块、第二计算模块、第三判断模块、第二调整模块；
获取模块，用于获取调整电压和预设电压，所述待调整电压为所述待调整区域的电源电压，所述预设电压为所述预设区域的电源电压。该获取模块比如为TCON。
第一判断模块，用于判断所述待调整电压是否大于所述预设电压。
第一计算模块，用于当所述待调整电压大于所述预设电压时，计算所述待调整电压与所述预设电压之间的第一差值。
第二判断模块，用于判断所述第一差值是否大于参考电压。
第一调整模块，用于当所述第二判断模块的判断结果为所述第一差值大于参考电压时，将所述待调整电压调小。
第二计算模块，用于在所述待调整电压小于所述预设电压，计算所述预设电压与所述待调整电压之间的第二差值。
第三判断模块，用于判断所述第二差值是否大于所述参考电压。
第二调整模块，用于当所述第三判断模块的判断结果为所述第二差值大于所述参考电压时，将所述待调整电压调大。
结合图3，所述电压调整电路还包括控制模块27；
所述第一调整模块，具体用于当所述第二判断模块的判断结果为所述第一差值大于参考电压时，生成第一调整信号；将所述第一调整信号输入到控制模块27，触发所述控制模块27将所述待调整电压调小。
所述第二调整模块，具体用于当所述第二差值大于所述参考电压时，生成第二调整信号；将所述第二调整信号输入到控制模块27，触发所述控制模块27将所述待调整电压调大。
如图3所示，以第二待调整区域103为例，所述第一判断模块包括第一电压比较器22，所述第一计算模块包括第一减法器21和第一开关T1，所述第二判断模块包括第二电压比较器23；
所述第一减法器21的第一输入端（正向输入端）接入所述待调整电压VSS3，所述第一减法器21的第二输入端（反向输入端）接入所述预设电压VSS1。
所述第一电压比较器22的正向输入端接入所述待调整电压VSS3，所述第一电压比较器22的反向输入端接入所述预设电压VSS1，所述第一电压比较器22的输出端与所述第一开关T1的控制端连接。
所述第一开关T1的输入端与所述第一减法器21的输出端连接，所述第一开关T1的输出端与所述第二电压比较器23的正向输入端连接，所述第二电压比较器23的反向输入端接入所述参考电压Vref，所述第二电压比较器23的输出端输出所述第一控制信号。
所述第一判断模块还包括第三电压比较器24，所述第二计算模块包括第二减法器25和第二开关T2，所述第三判断模块包括第四电压比较器26。
所述第二减法器25的第一输入端（正向输入端）接入所述预设电压VSS1，所述第一减法器25的第二输入端（反向输入端）接入所述待调整电压VSS3；
所述第三电压比较器24的正向输入端接入所述预设电压VSS1，所述第三电压比较器24的反向输入端接入所述待调整电压VSS3，所述第三电压比较器24的输出端与所述第二开关T2的控制端连接。
所述第二开关T2的输入端与所述第二减法器25的输出端连接，所述第二开关T2的输出端与所述第四电压比较器26的正向输入端连接，所述第四电压比较器26的反向输入端接入所述参考电压Vref，所述第四电压比较器26的输出端输出所述第二控制信号。
其中，当所述第二差值大于所述参考电压时，所述第二调整信号为高电平，将所述待调整电压调大。
例如，当VSS3大于VSS1时，第一电压比较器22输出电压V2为高电平，此时第一开关T1导通。由于第一减法器21输出电压V1为VSS3与VSS1的差值，将该差值V1与Vref值进行比较，如果第二电压比较器23输出电压V5为高电平，则表明该差值过大且超出预设范围，也即该待调整电压VSS3过大，因此将VSS3调小。若输出电压V5为低电平，表明该差值在预设范围内，不会影响显示效果，因此不对VSS3进行调整。
其中，当所述第一差值大于所述参考电压时，所述第一调整信号为高电平，将所述待调整电压调小。
例如，当VSS3小于VSS1时，第三电压比较器24输出电压V4为高电平，此时第二开关T2导通，第二减法器25输出电压V3为VSS1与VSS3的差值，将该差值V3与Vref值进行比较，如果第四电压比较器26输出电压V6为高电平，则表明该差值过大且超出预设范围，也即待调整电压VSS3过小，因此将VSS3调大。若输出电压V6为低电平，表明该差值在预设范围内，不会影响显示效果，因此不对VSS3进行调整。
通过上述调整后，使距离驱动模块较远的区域的电源电压与预设电压之间的差值位于预设范围内，也即使得各区域的电源电压近似相等，从而使得显示亮度更加均匀，提高了显示效果。
本发明的液晶显示面板的驱动方法以及电压调整电路，通过对距离驱动模块较远的区域的电源电压进行调整，使得各区域的电源电压保持一致，从而使显示亮度更加均匀，提高了显示效果。
综上所述，虽然本发明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发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种电压调整电路，其中所述电压调整电路用于对液晶显示面板的待调整电压进行调整，所述液晶显示面板包括至少三个区域；所述至少三个区域包括预设区域以及至少两个待调整区域，其中所述预设区域为与驱动模块之间的距离等于预设距离的区域，所述驱动模块用于提供电源电压；所述电压调整电路包括：
    获取模块，用于获取调整电压和预设电压，所述待调整电压为所述待调整区域的电源电压，所述预设电压为所述预设区域的电源电压；
    第一判断模块，用于判断所述待调整电压是否大于所述预设电压；
    第一计算模块，用于当所述待调整电压大于所述预设电压时，计算所述待调整电压与所述预设电压之间的第一差值；
    第二判断模块，用于判断所述第一差值是否大于参考电压；
    第一调整模块，用于当所述第二判断模块的判断结果为所述第一差值大于参考电压时，将所述待调整电压调小；
    第二计算模块，用于当所述待调整电压小于所述预设电压时，计算所述预设电压与所述待调整电压之间的第二差值；
    第三判断模块，用于判断所述第二差值是否大于所述参考电压；
    第二调整模块，用于当所述第三判断模块的判断结果为所述第二差值大于所述参考电压时，将所述待调整电压调大；
    其中所述电压调整电路还包括控制模块；
    所述第一调整模块，具体用于当所述第二判断模块的判断结果为所述第一差值大于参考电压时，生成第一调整信号；将所述第一调整信号输入到所述控制模块，触发所述控制模块将所述待调整电压调小。
  2. 如权利要求1所述的电压调整电路，其中所述电压调整电路还包括控制模块；
    所述第二调整模块，具体用于当所述第二差值大于所述参考电压时，生成第二调整信号；将所述第二调整信号输入到控制模块，触发所述控制模块将所述待调整电压调大。
  3. 如权利要求2所述的电压调整电路，其中，当所述第二差值大于所述参考电压时，所述第二调整信号为高电平。
  4. 如权利要求1所述的电压调整电路，其中所述第一判断模块包括第三电压比较器，所述第二计算模块包括第二减法器和第二开关，所述第三判断模块包括第四电压比较器；
    所述第二减法器的第一输入端接入所述预设电压，所述第一减法器的第二输入端接入所述待调整电压；
    所述第三电压比较器的正向输入端接入所述预设电压，所述第三电压比较器的反向输入端接入所述待调整电压，所述第三电压比较器的输出端与所述第二开关的控制端连接；
    所述第二开关的输入端与所述第二减法器的输出端连接，所述第二开关的输出端与所述第四电压比较器的正向输入端连接，所述第四电压比较器的反向输入端接入所述参考电压，所述第四电压比较器的输出端输出所述第二控制信号。
  5. 如权利要求1所述的电压调整电路，其中 所述第一判断模块包括第一电压比较器，所述第一计算模块包括第一减法器和第一开关，所述第二判断模块包括第二电压比较器；
    所述第一减法器的第一输入端接入所述待调整电压，所述第一减法器的第二输入端接入所述预设电压；
    所述第一电压比较器的正向输入端接入所述待调整电压，所述第一电压比较器的反向输入端接入所述预设电压，所述第一电压比较器的输出端与所述第一开关的控制端连接；
    所述第一开关的输入端与所述第一减法器的输出端连接，所述第一开关的输出端与所述第二电压比较器的正向输入端连接，所述第二电压比较器的反向输入端接入所述参考电压，所述第二电压比较器的输出端输出所述第一控制信号。
  6. 如权利要求1所述的电压调整电路，其中 当所述第一差值大于所述参考电压时，所述第一调整信号为高电平。
  7. 如权利要求1所述的电压调整电路，其中 所述液晶显示面板包括三个区域，所述三个区域包括预设区域、第一待调整区域以及第二待调整区域，所述第二距离大于所述第一距离，所述第一距离大于所述预设距离；
    其中所述第一距离为所述第一待调整区域与所述驱动模块之间的距离，所述第二距离为所述第二待调整区域与所述驱动模块之间的距离。
  8. 一种液晶显示面板的驱动方法，其中 将液晶显示面板划分为至少三个区域；所述至少三个区域包括预设区域以及至少两个待调整区域，其中所述预设区域为与驱动模块之间的距离等于预设距离的区域；所述驱动模块用于提供电源电压；
    获取待调整电压和预设电压；其中所述待调整电压为所述待调整区域的电源电压，所述预设电压为所述预设区域的电源电压；
    判断所述待调整电压是否大于所述预设电压；
    若所述待调整电压大于所述预设电压，计算所述待调整电压与所述预设电压之间的第一差值；
    判断所述第一差值是否大于参考电压；
    若所述第一差值大于所述参考电压，则将所述待调整电压调小。
  9. 如权利要求8所述的液晶显示面板的驱动方法，其中所述方法还包括：
    若所述待调整电压小于所述预设电压，计算所述预设电压与所述待调整电压之间的第二差值；
    判断所述第二差值是否大于所述参考电压；
    若所述第二差值大于所述参考电压，则将所述待调整电压调大。
  10. 如权利要求9所述的液晶显示面板的驱动方法，其中当所述第二差值大于所述参考电压时，所述将所述待调整电压调大的步骤包括：
    生成第二调整信号；
    将所述第二调整信号输入到控制模块，触发所述控制模块将所述待调整电压调大。
  11. 如权利要求8所述的液晶显示面板的驱动方法，其中当所述第一差值大于所述参考电压时，所述将所述待调整电压调小的步骤包括：
    生成第一调整信号；
    将所述第一调整信号输入到控制模块，触发所述控制模块将所述待调整电压调小。
  12. 一种电压调整电路，其中所述电压调整电路用于对液晶显示面板的待调整电压进行调整，所述液晶显示面板包括至少三个区域；所述至少三个区域包括预设区域以及至少两个待调整区域，其中所述预设区域为与驱动模块之间的距离等于预设距离的区域，所述驱动模块用于提供电源电压；所述电压调整电路包括：
    获取模块，用于获取调整电压和预设电压，所述待调整电压为所述待调整区域的电源电压，所述预设电压为所述预设区域的电源电压；
    第一判断模块，用于判断所述待调整电压是否大于所述预设电压；
    第一计算模块，用于当所述待调整电压大于所述预设电压时，计算所述待调整电压与所述预设电压之间的第一差值；
    第二判断模块，用于判断所述第一差值是否大于参考电压；
    第一调整模块，用于当所述第二判断模块的判断结果为所述第一差值大于参考电压时，将所述待调整电压调小。
  13. 如权利要求12所述的电压调整电路，其中所述电压调整电路还包括：
    第二计算模块，用于当所述待调整电压小于所述预设电压时，计算所述预设电压与所述待调整电压之间的第二差值；
    第三判断模块，用于判断所述第二差值是否大于所述参考电压；
    第二调整模块，用于当所述第三判断模块的判断结果为所述第二差值大于所述参考电压时，将所述待调整电压调大。
  14. 如权利要求13所述的电压调整电路，其中所述电压调整电路还包括控制模块；
    所述第二调整模块，具体用于当所述第二差值大于所述参考电压时，生成第二调整信号；将所述第二调整信号输入到所述控制模块，触发所述控制模块将所述待调整电压调大。
  15. 如权利要求14所述的电压调整电路，其中，当所述第二差值大于所述参考电压时，所述第二调整信号为高电平。
  16. 如权利要求13所述的电压调整电路，其中所述第一判断模块包括第三电压比较器，所述第二计算模块包括第二减法器和第二开关，所述第三判断模块包括第四电压比较器；
    所述第二减法器的第一输入端接入所述预设电压，所述第一减法器的第二输入端接入所述待调整电压；
    所述第三电压比较器的正向输入端接入所述预设电压，所述第三电压比较器的反向输入端接入所述待调整电压，所述第三电压比较器的输出端与所述第二开关的控制端连接；
    所述第二开关的输入端与所述第二减法器的输出端连接，所述第二开关的输出端与所述第四电压比较器的正向输入端连接，所述第四电压比较器的反向输入端接入所述参考电压，所述第四电压比较器的输出端输出所述第二控制信号。
  17. 如权利要求12所述的电压调整电路，其中 所述第一判断模块包括第一电压比较器，所述第一计算模块包括第一减法器和第一开关，所述第二判断模块包括第二电压比较器；
    所述第一减法器的第一输入端接入所述待调整电压，所述第一减法器的第二输入端接入所述预设电压；
    所述第一电压比较器的正向输入端接入所述待调整电压，所述第一电压比较器的反向输入端接入所述预设电压，所述第一电压比较器的输出端与所述第一开关的控制端连接；
    所述第一开关的输入端与所述第一减法器的输出端连接，所述第一开关的输出端与所述第二电压比较器的正向输入端连接，所述第二电压比较器的反向输入端接入所述参考电压，所述第二电压比较器的输出端输出所述第一控制信号。
  18. 如权利要求12所述的电压调整电路，其中所述电压调整电路还包括控制模块； 所述第一调整模块，具体用于当所述第二判断模块的判断结果为所述第一差值大于参考电压时，生成第一调整信号；将所述第一调整信号输入到控制模块，触发所述控制模块将所述待调整电压调小。
  19. 如权利要求18所述的电压调整电路，其中当所述第一差值大于所述参考电压时，所述第一调整信号为高电平。
  20. 如权利要求12所述的电压调整电路，其中所述液晶显示面板包括三个区域，所述三个区域包括预设区域、第一待调整区域以及第二待调整区域，所述第二距离大于所述第一距离，所述第一距离大于所述预设距离；
    其中所述第一距离为所述第一待调整区域与所述驱动模块之间的距离，所述第二距离为所述第二待调整区域与所述驱动模块之间的距离。
PCT/CN2017/099379 2017-08-03 2017-08-29 一种液晶显示面板的驱动方法以及电压调整电路 Ceased WO2019024157A1 (zh)

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