WO2016041224A1 - 调节液晶面板闪烁度的方法 - Google Patents

调节液晶面板闪烁度的方法 Download PDF

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Publication number
WO2016041224A1
WO2016041224A1 PCT/CN2014/088524 CN2014088524W WO2016041224A1 WO 2016041224 A1 WO2016041224 A1 WO 2016041224A1 CN 2014088524 W CN2014088524 W CN 2014088524W WO 2016041224 A1 WO2016041224 A1 WO 2016041224A1
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liquid crystal
flicker
common electrode
electrode voltage
crystal panel
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English (en)
French (fr)
Inventor
何健
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US14/426,377 priority Critical patent/US9508294B2/en
Publication of WO2016041224A1 publication Critical patent/WO2016041224A1/zh
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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
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G09G3/3655—Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
    • 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
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
    • 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
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/029—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel

Definitions

  • the present invention relates to the field of liquid crystal display, and more particularly to a method for adjusting the flicker of a liquid crystal panel.
  • the voltage of the common electrode is a voltage value of the panel end of the liquid crystal module. It is determined by the characteristics of the liquid crystal and the working principle of the liquid crystal module.
  • the common electrode voltage needs to be set at the most central point of the positive and negative deflection voltage.
  • the liquid crystal panel flicker automatic adjustment system applied to the production line has appeared.
  • the principle is that the common electrode voltage value is sequentially written from the low to the high of the common electrode voltage value to the RAM of the common electrode voltage chip (Random Access Memory). , random access memory), each time a common electrode voltage value is written, a flashing value is measured, and the most of all the flicker values are taken.
  • the common electrode voltage value corresponding to the small flicker value is written in the ROM (Read-Only Memory) of the common electrode voltage chip, and the adjustment is completed.
  • An object of the present invention is to provide a method for adjusting the flicker of a liquid crystal panel, which can effectively reduce the adjustment range of the common electrode voltage value, reduce the adjustment time, improve the production efficiency, and quickly screen out the abnormal film.
  • the present invention provides a method for adjusting the flicker of a liquid crystal panel, comprising: step 1, providing an Nth liquid crystal panel to be subjected to flicker adjustment, and providing a first to Nth liquid crystal panel Optimal common electrode voltage value;
  • the N is an integer greater than 10;
  • Step 2 Calculate the mathematical expectation ⁇ and the standard deviation ⁇ of the optimum common electrode voltage values of the first to N-1th liquid crystal panels;
  • Step 4 Display the flashing pattern, and write VH, VL, (VH+VL)/2 one by one into the Nth liquid a random access memory of the crystal panel and measuring the corresponding flicker value;
  • Step 5 Determine whether the flicker value corresponding to (VH+VL)/2 is the minimum value among the three flicker values in step 4; if not the minimum value, the Nth liquid crystal panel is an abnormal slice, and filter it Come out, adjust the end; if it is the minimum, continue to adjust;
  • Step 6 Write the common electrode voltage values in the initial range (VL, VH) from low to high into the random access memory and measure the corresponding flicker values;
  • Step 7 Select the common electrode voltage value corresponding to the minimum flicker value to be written into the read-only memory of the Nth liquid crystal panel, and the calibration ends.
  • the first to N-th liquid crystal panels in the step 1 are the same type.
  • the step 5 is performed according to the median theorem.
  • the step 1 provides an optimum common electrode voltage value of the first to N-1 liquid crystal panels, including: sequentially adjusting the flicker degree of the first to N-1 liquid crystal panels, and adjusting each liquid crystal panel.
  • the effective range of the common electrode voltage value is directly selected, the random access memory of the common electrode voltage chip of the liquid crystal panel is sequentially written from low to high, and a flashing value is measured every time a common electrode voltage value is written, all The common electrode voltage value corresponding to the minimum flicker value is written into the read-only memory of the common electrode voltage chip of the liquid crystal panel.
  • N is preferably an integer greater than 50.
  • M is less than 5.
  • M in the step 3 is preferably 3.
  • the present invention applies a statistical analysis method to the upper and lower limit settings of the flicker adjustment range, and performs statistical analysis on the optimal common electrode voltage value of the previously adjusted N-1 liquid crystal panel.
  • the initial range of the optimum common electrode voltage value adjustment of the Nth liquid crystal panel is greatly reduced, the variation range of the common electrode voltage value is greatly reduced, the flicker adjustment efficiency is improved, the production efficiency is greatly improved, and the process is improved as the process is improved.
  • the common electrode voltage value tends to be stable, that is, the ⁇ is continuously decreased, the interval range is also reduced, and the required flicker adjustment time is further reduced, and the improvement effect is more obvious; in addition to saving the adjustment time, the present invention can also quickly screen out the flicker. Unusual film.
  • FIG. 1 is a flow chart showing an implementation of a method for adjusting the flicker of a liquid crystal panel according to the present invention
  • FIG. 2 is a graph showing a relationship between a flicker value and a common electrode voltage value
  • Figure 4 is a histogram of the count of the optimum common electrode voltage values of 200 liquid crystal panels
  • Figure 5 is a normal distribution curve of the optimum common electrode voltage value
  • Figure 6 is a probability distribution table of optimal common electrode voltage values in different intervals
  • Fig. 7 is a graph showing an initial range of adjustment of a common electrode voltage value set from a 20th liquid crystal panel to a 200th liquid crystal panel.
  • the present invention provides a method for adjusting the flicker of a liquid crystal panel, comprising: Step 1. Providing an Nth liquid crystal panel to be subjected to flicker adjustment, and providing a first to N-1 liquid crystal panel Optimal common electrode voltage value;
  • N is an integer greater than 10, preferably N is an integer greater than 50;
  • the step 1 provides an optimum common electrode voltage value of the first to N-1 liquid crystal panels, including: sequentially adjusting the flicker degree of the first to N-1 liquid crystal panels, and adjusting each liquid crystal panel.
  • the step 1 provides an optimum common electrode voltage value of the first to N-1 liquid crystal panels, including: sequentially adjusting the flicker degree of the first to N-1 liquid crystal panels, and adjusting each liquid crystal panel.
  • Step 2 Calculate the mathematical expectation ⁇ and the standard deviation ⁇ of the optimum common electrode voltage values of the first to N-1th liquid crystal panels;
  • M is less than 5, preferably 3;
  • the optimal common electrode voltage values of 200 liquid crystal panels of the same model are counted, and the distribution of the optimum common electrode voltage values of the first to the 200th liquid crystal panels is plotted in FIG. 3 .
  • the line graph and counts the number of occurrences of each optimal common electrode voltage value, and draws a count histogram of the actual adjustment of the optimal common electrode voltage value of the 200 liquid crystal panels shown in FIG. 4, which can be seen from FIG.
  • the distribution of the common electrode voltage values is in a normal distribution, so the initial range of the common electrode voltage value adjustment can be set according to the probability principle of the normal distribution. Calculate the mathematical expectation ⁇ and standard deviation ⁇ of the estimated common common electrode voltage value, as shown in Fig.
  • Step 4 Display a blinking pattern, write VH, VL, (VH+VL)/2 one by one into a random access memory (RAM) of the Nth liquid crystal panel and measure the corresponding flicker value;
  • RAM random access memory
  • Step 5 Determine whether the flicker value corresponding to (VH+VL)/2 is the minimum value among the three flicker values in step 4; if not the minimum value, the Nth liquid crystal panel is an abnormal slice, and filter it Come out, adjust the end; if it is the minimum, continue to adjust.
  • the relationship between the flicker value and the common electrode voltage value is combined with the principle of the median theorem to measure the flicker value of the point and the midpoint of the initial range. If the flicker value corresponding to (VH+VL)/2 is not step 3
  • the minimum of the three flicker values may be determined that the optimal common electrode voltage value corresponding to the minimum flicker value of the liquid crystal panel is not within the set initial range (VL, VH), and is not within the set range.
  • the LCD panel is a flickering anomaly, which is screened out and the adjustment is finished.
  • the flicker value corresponding to (VH+VL)/2 is the minimum value among the three flicker values described in step 3, it can be determined that the optimal common electrode voltage value corresponding to the minimum flicker value of the liquid crystal panel is set. Within the initial range (VL, VH), proceed to the following steps 6-7.
  • Step 6 Write the common electrode voltage values in the initial range (VL, VH) from low to high into the random access memory of the Nth liquid crystal panel and measure the corresponding flicker value;
  • Step 7 Select the common electrode voltage value corresponding to the minimum flicker value to be written into the read only memory (ROM) of the Nth liquid crystal panel, and the calibration ends.
  • ROM read only memory
  • the initial range 6 ⁇ of the common electrode voltage adjustment set by the present invention is about 18 common electrode voltage units.
  • the method of the present invention is not used, all valid ranges of the common electrode voltage values are directly selected for calibration.
  • the initial range of the common electrode voltage adjustment is about 120 common electrode voltage units, the present invention can reduce the flicker adjustment time by 80% compared with the prior art, and greatly improve the production efficiency.
  • the optimal common electrode voltage value tends to be stable, that is, ⁇ is continuously decreasing, and the range of the adjustment of the common electrode voltage is also continuously reduced, and the adjustment time required for the flicker is further reduced, and the improvement effect is more and more improved. obvious.
  • the present invention can also quickly screen out scintillation anomalies.

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

Abstract

提供了一种调节液晶面板闪烁度的方法，包括：提供待进行闪烁度调节的第N片液晶面板；统计第1片至第N-1片液晶面板的最佳公共电极电压值的数学期望μ和标准差σ；设定公共电极电压值调校的初始范围(VL,VH)，其中VL＝μ-Mσ，VH＝μ+Mσ；显示闪烁图案，将VH、VL、(VH+VL)/2逐一写入第N片液晶面板的随机存取存储器并量测对应闪烁值；判断(VH+VL)/2对应的闪烁值是否为上一步骤中的三个闪烁值中的最小值；若不是最小值，则调校结束；若是最小值，则继续调校；将初始范围(VL,VH)内的公共电极电压值从低到高逐一写入随机存取存储器中并量测对应的闪烁值；选取最小的闪烁值对应的公共电极电压值写入第N片液晶面板的只读存储器，调校结束。

Description

调节液晶面板闪烁度的方法 技术领域
本发明涉及液晶显示领域，尤其涉及一种调节液晶面板闪烁度的方法。
背景技术
目前，液晶模组在生产过程中，总会存在一定程度的闪烁(Flicker)现象，闪烁值过大会造成观察者的视觉疲劳和不适，因此液晶模组在出厂前需要进行闪烁度调节，使画面的闪烁度达到预定的范围内，提高观看效果。公共电极电压(Voltage of Common electrode，V-com)是液晶模组面板(panel)端的一个电压值，由液晶的特性及液晶模组的工作原理决定，液晶面板驱动电路中存在一个正负偏转电压，公共电极电压需要设置在这个正负偏转电压的最中心点，通过调整公共电极电压的值，可以将液晶面板的闪烁值调整至最小，从而使液晶面板的显示效果达到最好。
最近几年出现了运用于生产线的液晶面板闪烁度自动调节系统，其原理是通过公共电极电压值的有效范围将公共电极电压值从低到高依次写入公共电极电压芯片的RAM(Random Access Memory，随机存取存储器)，每写入一个公共电极电压值，量测一个闪烁值，所有的闪烁值中取其中最 小闪烁值对应的公共电极电压值写入公共电极电压芯片的ROM(Read-Only Memory，只读存储器)中，完成调节。这种方法虽然比手动调节快很多，但依次写入的公共电极电压值数量会比较多，耗费的时间也较长，闪烁度调节的效率并不理想。
发明内容
本发明的目的在于提供一种调节液晶面板闪烁度的方法，其能有效缩小公共电极电压值的调节范围，减少调节时间，提高生产效率，同时可以快速筛选出异常片。
为实现上述目的，本发明提供了一种调节液晶面板闪烁度的方法，包括：步骤1、提供待进行闪烁度调节的第N片液晶面板，提供第1片至第N-1片液晶面板的最佳公共电极电压值；
所述N为大于10的整数；
步骤2、统计第1片至第N-1片液晶面板的最佳公共电极电压值的数学期望μ和标准差σ；
步骤3、设定公共电极电压值调校的初始范围(VL，VH)，该初始范围采用正态分布原理确定，其中VL＝μ-Mσ，VH＝μ+Mσ，M为正整数；
步骤4、显示闪烁图案，将VH、VL、(VH+VL)/2逐一写入第N片液 晶面板的随机存取存储器并量测对应闪烁值；
步骤5、判断(VH+VL)/2对应的闪烁值是否为步骤4中所述三个闪烁值中的最小值；若不是最小值，则该第N片液晶面板为异常片，将其筛选出来，调校结束；若是最小值，则继续调校；
步骤6、将初始范围(VL，VH)内的公共电极电压值从低到高逐一写入随机存取存储器中并量测对应的闪烁值；
步骤7、选取最小的闪烁值对应的公共电极电压值写入第N片液晶面板的只读存储器，调校结束。
所述步骤1中的第1片至第N片液晶面板为同一机种。
所述步骤5是根据中值定理进行的。
所述步骤1提供第1片至第N-1片液晶面板的最佳公共电极电压值包括：对第1片至第N-1片液晶面板依次进行闪烁度调节，对每一片液晶面板进行调节时，直接选取公共电极电压值的所有有效范围从低到高依次写入该片液晶面板的公共电极电压芯片的随机存取存储器，每写入一个公共电极电压值，量测一个闪烁值，所有的闪烁值中取其中最小闪烁值对应的公共电极电压值写入该片液晶面板的公共电极电压芯片的只读存储器。
所述步骤1中N优选为大于50的整数。
所述步骤3中M小于5。
所述步骤3中M优选为3。
本发明的有益效果：本发明将统计学分析方法运用到闪烁度调节范围的上限和下限设定上，通过对之前调节的N-1片液晶面板的最佳公共电极电压值进行统计分析从而设定第N片液晶面板的最佳公共电极电压值调校的初始范围，大大缩小公共电极电压值的变化范围，提高闪烁度调节效率，大大提高生产效率；并且随着制程的不断改善，最佳公共电极电压值趋于稳定，即σ不断减小，区间范围也减小，所需要闪烁度调节时间进一步缩减，改善效果也越发明显；除节约调节时间外，本发明还可以快速筛选出闪烁度异常片。
附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明的技术方案及其它有益效果显而易见。
附图中，
图1为本发明调节液晶面板闪烁度的方法的实施流程图；
图2为闪烁值与公共电极电压值的曲线关系图；
图3为200片液晶面板最佳公共电极电压值的分布折线图；
图4为200片液晶面板最佳公共电极电压值的计数柱状图；
图5为最佳公共电极电压值的正态分布曲线；
图6为最佳公共电极电压值在不同区间范围内的概率分布表；
图7为从第20片液晶面板到第200片液晶面板设定的公共电极电压值调校的初始范围的曲线图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图1，本发明提供了一种调节液晶面板闪烁度的方法，包括：步骤1、提供待进行闪烁度调节的第N片液晶面板，提供第1片至第N-1片液晶面板的最佳公共电极电压值；
为了确保设定的公共电压调校初始范围为有效范围，需保证所述步骤1中的第1片至第N片液晶面板为同一机种；
优选的，所述步骤1中N为大于10的整数，优选N为大于50的整数；
所述步骤1提供第1片至第N-1片液晶面板的最佳公共电极电压值包括：对第1片至第N-1片液晶面板依次进行闪烁度调节，对每一片液晶面板进行调节时，直接选取公共电极电压值的所有有效范围从低到高依次写 入该片液晶面板的公共电极电压芯片的随机存取存储器，每写入一个公共电极电压值，量测一个闪烁值，所有的闪烁值中取其中最小闪烁值对应的公共电极电压值写入该片液晶面板的公共电极电压芯片的只读存储器。
步骤2、统计第1片至第N-1片液晶面板的最佳公共电极电压值的数学期望μ和标准差σ；
步骤3、设定公共电极电压值调校的初始范围(VL，VH)，该初始范围采用正态分布原理确定，其中VL＝μ-Mσ，VH＝μ+Mσ，M为正整数；
所述步骤3中M小于5，优选为3；
请参阅图3至图6，统计了200片同一机种液晶面板的最佳公共电极电压值，并在图3中绘制了第1片到第200片液晶面板的最佳公共电极电压值的分布折线图，并统计了每一最佳公共电极电压值出现的次数，绘制了图4所示的200片液晶面板实际调节最佳公共电极电压值的计数柱状图，从图4可以看出最佳公共电极电压值的分布是符合正态分布的，因此可以根据正态分布的概率原理设定公共电极电压值调节的初始范围。计算统计出的最佳公共电极电压值的数学期望μ和标准差σ，如图5所示为分布于(μ-3σ，μ+3σ)区间范围内的最佳公共电极电压值的正态分布曲线；统计最佳公共电极电压值分别出现在(μ-σ，μ+σ)，(μ-2σ，μ+2σ)，(μ-3σ，μ+3σ)， (μ-4σ，μ+4σ)四个区间范围内的概率，如图6所示，可以看到，当选取区间(μ-3σ，μ+3σ)时，99.73％的最佳公共电极电压值都落在该区间内，可以保证绝大多数液晶面板的最佳公共电极电压值落在该初始设定范围内，实际效果如图7所示。
步骤4、显示闪烁图案，将VH、VL、(VH+VL)/2逐一写入第N片液晶面板的随机存取存储器(RAM)并量测对应闪烁值；
步骤5、判断(VH+VL)/2对应的闪烁值是否为步骤4中所述三个闪烁值中的最小值；若不是最小值，则该第N片液晶面板为异常片，将其筛选出来，调校结束；若是最小值，则继续调校。
如图2所示闪烁值与公共电极电压值的曲线关系图结合中值定理的原理，测量初始范围两端点及中点的闪烁值，如果(VH+VL)/2对应的闪烁值不是步骤3中所述三个闪烁值中的最小值，可以判断该片液晶面板最小的闪烁值所对应的最佳公共电极电压值不在设定的初始范围(VL，VH)内，不在设定范围内的液晶面板属于闪烁异常片，被筛选出来，调校结束。
如果(VH+VL)/2对应的闪烁值是步骤3中所述三个闪烁值中的最小值，可以判断该片液晶面板最小的闪烁值所对应的最佳公共电极电压值在设定的初始范围(VL，VH)内，则继续进行下列步骤6-7。
步骤6、将初始范围(VL，VH)内的公共电极电压值从低到高逐一写入第N片液晶面板的随机存取存储器并量测对应的闪烁值；
步骤7、选取最小的闪烁值对应的公共电极电压值写入第N片液晶面板的只读存储器(ROM)，调校结束。
在实际生产中，本发明设定的公共电极电压调校的初始范围6σ约为18个公共电极电压单位，然而，如果不采用本发明方法，直接选取公共电极电压值的所有有效范围进行调校的话，公共电极电压调校的初始范围约为120个公共电极电压单位，因此本发明与现有技术相比可以缩减80％的闪烁度调节时间，大大提高生产效率。而且随着制程的不断改善，最佳公共电极电压值趋于稳定，即σ不断减小，公共电极电压调校的区间范围也不断减小，所需要闪烁度调节时间进一步缩减，改善效果也越发明显。除了节约调节时间外，本发明还可以快速筛选出闪烁异常片。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (8)

  1. 一种调节液晶面板闪烁度的方法，包括：步骤1、提供待进行闪烁度调节的第N片液晶面板，提供第1片至第N-1片液晶面板的最佳公共电极电压值，所述N为大于10的整数；
    步骤2、统计第1片至第N-1片液晶面板的最佳公共电极电压值的数学期望μ和标准差σ；
    步骤3、设定公共电极电压值调校的初始范围(VL，VH)，该初始范围采用正态分布原理确定，其中VL＝μ-Mσ，VH＝μ+Mσ，M为正整数；
    步骤4、显示闪烁图案，将VH、VL、(VH+VL)/2逐一写入第N片液晶面板的随机存取存储器并量测对应闪烁值；
    步骤5、判断(VH+VL)/2对应的闪烁值是否为步骤4中所述三个闪烁值中的最小值；若不是最小值，则该第N片液晶面板为异常片，将其筛选出来，调校结束；若是最小值，则继续调校；
    步骤6、将初始范围(VL，VH)内的公共电极电压值从低到高逐一写入随机存取存储器中并量测对应的闪烁值；
    步骤7、选取最小的闪烁值对应的公共电极电压值写入第N片液晶面板的只读存储器，调校结束。
  2. 如权利要求1所述的调节液晶面板闪烁度的方法，其中，所述步骤1中的第1片至第N片液晶面板为同一机种。
  3. 如权利要求1所述的调节液晶面板闪烁度的方法，其中，所述步骤5是根据中值定理进行的。
  4. 如权利要求1所述的调节液晶面板闪烁度的方法，其中，所述步骤1提供第1片至第N-1片液晶面板的最佳公共电极电压值包括：对第1片至第N-1片液晶面板依次进行闪烁度调节，对每一片液晶面板进行调节时，直接选取公共电极电压值的所有有效范围从低到高依次写入该片液晶面板的公共电极电压芯片的随机存取存储器，每写入一个公共电极电压值，量测一个闪烁值，所有的闪烁值中取其中最小闪烁值对应的公共电极电压值写入该片液晶面板的公共电极电压芯片的只读存储器。
  5. 如权利要求4所述的调节液晶面板闪烁度的方法，其中，所述步骤1中N优选为大于50的整数。
  6. 如权利要求1所述的调节液晶面板闪烁度的方法，其中，所述步骤3中M小于5。
  7. 如权利要求6所述的调节液晶面板闪烁度的方法，其中，所述步骤3中M优选为3。
  8. 一种调节液晶面板闪烁度的方法，包括：步骤1、提供待进行闪烁度调节的第N片液晶面板，提供第1片至第N-1片液晶面板的最佳公共电极电压值，所述N为大于50的整数；
    步骤2、统计第1片至第N-1片液晶面板的最佳公共电极电压值的数学期望μ和标准差σ；
    步骤3、设定公共电极电压值调校的初始范围(VL，VH)，该初始范围采用正态分布原理确定，其中VL＝μ-Mσ，VH＝μ+Mσ，M为小于5的正整数；
    步骤4、显示闪烁图案，将VH、VL、(VH+VL)/2逐一写入第N片液晶面板的随机存取存储器并量测对应闪烁值；
    步骤5、判断(VH+VL)/2对应的闪烁值是否为步骤4中所述三个闪烁值中的最小值；若不是最小值，则该第N片液晶面板为异常片，将其筛选出来，调校结束；若是最小值，则继续调校；
    步骤6、将初始范围(VL，VH)内的公共电极电压值从低到高逐一写入随机存取存储器中并量测对应的闪烁值；
    步骤7、选取最小的闪烁值对应的公共电极电压值写入第N片液晶面板的只读存储器，调校结束；
    其中，所述步骤1中的第1片至第N片液晶面板为同一机种；
    其中，所述步骤5是根据中值定理进行的；
    其中，所述步骤1提供第1片至第N-1片液晶面板的最佳公共电极电压值包括：对第1片至第N-1片液晶面板依次进行闪烁度调节，对每一片液晶面板进行调节时，直接选取公共电极电压值的所有有效范围从低到高依次写入该片液晶面板的公共电极电压芯片的随机存取存储器，每写入一个公共电极电压值，量测一个闪烁值，所有的闪烁值中取其中最小闪烁值对应的公共电极电压值写入该片液晶面板的公共电极电压芯片的只读存储器。
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