CN106683633A - Method and device for adjusting display module - Google Patents
Method and device for adjusting display module Download PDFInfo
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- CN106683633A CN106683633A CN201710164591.XA CN201710164591A CN106683633A CN 106683633 A CN106683633 A CN 106683633A CN 201710164591 A CN201710164591 A CN 201710164591A CN 106683633 A CN106683633 A CN 106683633A
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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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3674—Details of drivers for scan electrodes
- G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
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- Crystallography & Structural Chemistry (AREA)
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Abstract
The invention discloses a method and a device for adjusting a display module. The method comprises the following steps: acquiring a corresponding first public electrode voltage of the display module when an image is only displayed in the odd number lines and a pixel electrode leaping voltage is within a preset leaping scope and a corresponding second public electrode voltage of the display module when a preset image is only displayed in all the even number lines and the pixel electrode leaping voltage is within the preset leaping scope, and then, adjusting the grid opening voltages applied by the driving transistors of the odd number line pixels and/or the even number line pixels according to the magnitude relation between the first public electrode voltage and the second public electrode voltage when the preset image is displayed on all the pixels of the display module, till the difference of the pixel electrode leaping voltage corresponding to the odd number line pixels and the pixel electrode leaping voltage corresponding to the even number line pixels is within a preset difference scope, thereby regarding as the pixel electrode leaping voltages of the odd number line pixels and the even number line pixels being consistent and avoiding the problem of difficulty in adjusting the flicker image of the display module.
Description
Technical field
The present invention relates to display technology field, the method for adjustment and device of more particularly to a kind of display module.
Background technology
With the continuous progress of Display Technique, at present, as shown in figure 1, thin-film transistor LCD device (Thin
Film Transistor-Liquid Crystal Display, abbreviation TFT-LCD) generally comprise pixel cell 100, grid line
Gate, data wire Data, wherein, pixel cell 100 is typically from thin film transistor (TFT), a storage capacitance and for liquid crystal
The pixel electrode of molecule applied voltage is constituted.
The signal waveforms of above-mentioned pixel cell are as shown in Figure 2.Wherein, carried out using the pixel cell structure of prior art
During display, first, the grid with high level (such as 15V) is applied to grid line and opens voltage, i.e., to the grid of thin film transistor (TFT)
The certain high level voltage of upper applying turns on thin film transistor (TFT), so as to output signal can be sent to liquid crystal capacitance and storage electricity
Rong Shang.After scanning is completed, the gate off voltage of low level voltage (such as -5V), i.e. voltage on grid line are applied to grid line
It is changed into low level voltage, now thin film transistor (TFT) is in cut-off state, liquid crystal capacitance and storage capacitance maintenance work are loaded, and
When thin film transistor (TFT) is transformed into cut-off state by conducting state, the voltage at liquid crystal two ends can produce a saltus step, normally referred to as
Pixel electrode leaping voltage Δ V and Δ V meets formula：Wherein, VGH is represented
The grid that being applied on grid line is used for driving thin film transistor (TFT) to open opens voltage, and VGL represents to be applied on grid line to be used to drive
The gate off voltage that thin film transistor (TFT) is closed, Cgs represents the gate-source capacitance of thin film transistor (TFT), and Clc represents liquid crystal capacitance, Cst
Represent storage capacitance.Due to the presence of Δ V, result in and occur in TFT-LCD display pictures flicker (Flicker) phenomenon.
However, as shown in figure 1, the relative position of the TFT of each pixel cell 100 is identical in the odd-numbered line in TFT-LCD,
The relative position of the TFT of each pixel cell 100 is identical in even number line in TFT-LCD, and in odd-numbered line pixel cell 100 with it is even
The relative position of the TFT of pixel cell 100 is differed in several rows.And it is directed to odd-line pixels unit and idol in TFT-LCD
The inconsistent situation of the relative position of the TFT in several rows pixel cell, when the source-drain electrode metal level in TFT shifts, example
During such as right avertence, due to the relative position of the TFT in adjacent odd-line pixels unit and even rows unit it is inconsistent, odd number
The Cgs1 of row pixel will reduce, and the Cgs2 of even rows will increase, so as to result in odd-line pixels and even number line picture
The Cgs of element is different, and so as to result in, odd-line pixels are different from the Δ V of even rows, and then cause the flicker picture of TFT-LCD
Face is difficult the problem for adjusting.
The content of the invention
Embodiments provide the method for adjustment and device of a kind of display module, to solve prior art in due to
The relative position of the TFT in odd-line pixels unit and even rows unit is inconsistent, causes the Δ V of odd-numbered line and even number line
Difference, so as to the flicker picture for causing TFT-LCD is difficult the problem for adjusting.
Therefore, a kind of method of adjustment of display module, in the display module, each odd number are embodiments provided
The relative position of the driving transistor of row pixel is identical, and the relative position of the driving transistor of each even rows is identical, described
The driving transistor of odd-line pixels is different from the relative position of the driving transistor of the even rows；Methods described bag
Include：
Obtain the display module and only show default picture and pixel electrode leaping voltage satisfaction in all odd-line pixels
Corresponding first public electrode voltages during default saltus step scope, and the display module is only in all even rows display institute
State default picture and pixel electrode leaping voltage meets corresponding second public electrode voltages when presetting saltus step scope；
When all row pixels of the display module show the default picture, according to first public electrode voltages
With the magnitude relationship between second public electrode voltages, the regulation odd-line pixels and/or the even rows
Grid that driving transistor is applied opens voltage, until the corresponding pixel electrode leaping voltage of the odd-line pixels with it is described
The difference of the corresponding pixel electrode leaping voltage of even rows meets preset difference value scope；Wherein, each odd-line pixels
Driving transistor applies identical grid and opens voltage, and the driving transistor of each even rows applies identical grid and beats
Open voltage.
Preferably, in said method provided in an embodiment of the present invention, it is described according to first public electrode voltages with
Magnitude relationship between second public electrode voltages, adjusts the drive of the odd-line pixels and/or the even rows
The grid that dynamic transistor is applied opens voltage, specifically includes：
When first public electrode voltages are less than second public electrode voltages, increase the odd-line pixels
The grid that driving transistor is applied opens voltage, and/or, reduce the grid that the driving transistor of the even rows is applied
Open voltage in pole；
When second public electrode voltages are less than first public electrode voltages, increase the even rows
The grid that driving transistor is applied opens voltage, and/or, reduce the grid that the driving transistor of the odd-line pixels is applied
Open voltage in pole.
Preferably, it is described to obtain the display module only all strange in said method provided in an embodiment of the present invention
Several rows pixel shows default picture and pixel electrode leaping voltage meets corresponding first public electrode electricity during default saltus step scope
Pressure, specifically includes：
Identical grid opening voltage is applied to the driving transistor of each described odd-line pixels of the display module, is made
The display module shows the default picture；
The public electrode voltages of the display module are adjusted, the pixel electrode leaping voltage for making the display module reduces；
When judging that the pixel electrode leaping voltage meets the default saltus step scope, it is determined that the public electrode after adjustment
Voltage is first public electrode voltages.
Preferably, it is described to obtain the display module only in all idols in said method provided in an embodiment of the present invention
Several rows pixel shows the default picture and pixel electrode leaping voltage to meet during the default saltus step scope corresponding second public
Common-battery pole tension, specifically includes：
Identical grid opening voltage is applied to the driving transistor of each described even rows of the display module, is made
The display module shows the default picture；
The public electrode voltages of the display module are adjusted, the pixel electrode leaping voltage for making the display module reduces；
When judging that the pixel electrode leaping voltage meets the default saltus step scope, it is determined that the public electrode after adjustment
Voltage is second public electrode voltages.
Preferably, in said method provided in an embodiment of the present invention, described until the odd-line pixels pair
The difference of the corresponding pixel electrode leaping voltage of the pixel electrode leaping voltage and the even rows answered meets preset difference value model
After enclosing, also include：
Record the corresponding pixel electrode leaping voltage of odd-line pixels pixel electricity corresponding with the even rows
When the difference of pole leaping voltage meets preset difference value scope, the odd-line pixels and the even rows corresponding grid of difference
Voltage is opened, and voltage is opened respectively to odd-line pixels described in the display module and the idol according to the grid that recorded
Several rows pixel carries out grid and opens voltage burning.
Correspondingly, the embodiment of the present invention additionally provides a kind of adjusting apparatus of display module, in the display module, respectively
The relative position of the driving transistor of odd-line pixels is identical, and the relative position of the driving transistor of each even rows is identical,
The driving transistor of the odd-line pixels is different from the relative position of the driving transistor of the even rows；Described device
Including：
Acquiring unit, only default picture and pixel electrode are shown for obtaining the display module in all odd-line pixels
Corresponding first public electrode voltages when leaping voltage meets default saltus step scope, and the display module is only in all even numbers
Row pixel shows the default picture and pixel electrode leaping voltage to meet during the default saltus step scope corresponding second public
Electrode voltage；
Adjustment unit, for when all row pixels of the display module show the default picture, according to described
Magnitude relationship between one public electrode voltages and second public electrode voltages, adjusts the odd-line pixels and/or institute
The grid opening voltage that the driving transistor of even rows is applied is stated, until the corresponding pixel electrode of the odd-line pixels
The difference of leaping voltage and the corresponding pixel electrode leaping voltage of the even rows meets preset difference value scope；Wherein, each institute
The driving transistor for stating odd-line pixels applies identical grid opening voltage, and the driving transistor of each even rows is applied
Plus identical grid opens voltage.
Preferably, in said apparatus provided in an embodiment of the present invention, the adjustment unit specifically for：
When first public electrode voltages are less than second public electrode voltages, increase the odd-line pixels
The grid that driving transistor is applied opens voltage, and/or, reduce the grid that the driving transistor of the even rows is applied
Open voltage in pole；
When second public electrode voltages are less than first public electrode voltages, increase the even rows
The grid that driving transistor is applied opens voltage, and/or, reduce the grid that the driving transistor of the odd-line pixels is applied
Open voltage in pole.
Preferably, in said apparatus provided in an embodiment of the present invention, the acquiring unit specifically for：To the display
The driving transistor of each described odd-line pixels of module applies identical grid and opens voltage, makes the display module show institute
State default picture；The public electrode voltages of the display module are adjusted, the pixel electrode leaping voltage for making the display module subtracts
It is little；When judging that the pixel electrode leaping voltage meets the default saltus step scope, it is determined that the public electrode voltages after adjustment
For first public electrode voltages.
Preferably, in said apparatus provided in an embodiment of the present invention, the acquiring unit specifically for：To the display
The driving transistor of each described even rows of module applies identical grid and opens voltage, makes the display module show institute
State default picture；The public electrode voltages of the display module are adjusted, the pixel electrode leaping voltage for making the display module subtracts
It is little；When judging that the pixel electrode leaping voltage meets the default saltus step scope, it is determined that the public electrode voltages after adjustment
For second public electrode voltages.
Preferably, in said apparatus provided in an embodiment of the present invention, also include：
Recording unit, for recording the corresponding pixel electrode leaping voltage of the odd-line pixels and the even rows
When the difference of corresponding pixel electrode leaping voltage meets preset difference value scope, the odd-line pixels and the even rows divide
Not corresponding grid opens voltage；
Burning unit, for opening voltage respectively to odd-numbered line picture described in the display module according to the grid that recorded
It is plain to carry out grid opening voltage burning with the even rows.
The present invention has the beneficial effect that：
The method of adjustment and device of display module provided in an embodiment of the present invention, by when display module is only in odd-numbered line picture
When element shows, the pixel electrode leaping voltage for obtaining display module meets corresponding first public electrode electricity during default saltus step scope
Pressure；And when display module only shows default picture in all even rows, obtain the pixel electrode saltus step of display module
Corresponding second public electrode voltages when voltage meets default saltus step scope；The drive of each odd-line pixels in display module
Dynamic transistor applies identical grid opening voltage and the driving transistor to each even rows applies identical grid and beats
Open voltage, it is public with second according to the first public electrode voltages during so that all pixels of display module carrying out showing default picture
The grid that the driving transistor of the magnitude relationship between common-battery pole tension, regulation odd-line pixels and/or even rows is applied
Voltage is opened in pole, until the pixel electrode saltus step corresponding with even rows of the corresponding pixel electrode leaping voltage of odd-line pixels
Difference in voltage meets preset difference value scope.So as in the corresponding pixel electrode leaping voltage of odd-line pixels and even rows pair
When the difference of the pixel electrode leaping voltage answered meets preset difference value scope, it is believed that the picture of odd-line pixels and even rows
Plain electrode leaping voltage reaches unanimity, and then the flicker picture of display module can be avoided to be difficult the problem for adjusting.
Description of the drawings
The structural representation of the display module that Fig. 1 is provided for prior art；
The signal waveforms of the pixel cell that Fig. 2 is provided for prior art；
Fig. 3 is the flow chart of method of adjustment provided in an embodiment of the present invention；
Fig. 4 is the flow chart of the method for first public electrode voltages of acquisition provided in an embodiment of the present invention；
Fig. 5 is the flow chart of the method for second public electrode voltages of acquisition provided in an embodiment of the present invention；
Fig. 6 a are that the grid after adjustment provided in an embodiment of the present invention opens one of schematic diagram of voltage；
Fig. 6 b are the two of the schematic diagram that the grid after adjustment provided in an embodiment of the present invention opens voltage；
Fig. 7 is the structural representation of adjusting apparatus provided in an embodiment of the present invention.
Specific embodiment
In order that the purpose of the present invention, technical scheme and advantage are clearer, below in conjunction with the accompanying drawings, to the embodiment of the present invention
The method of adjustment of the display module of offer and the specific embodiment of device are described in detail.It should be appreciated that being retouched below
The preferred embodiment stated is merely to illustrate and explains the present invention, is not intended to limit the present invention.And in the case where not conflicting,
The feature in embodiment and embodiment in the application can be mutually combined.
Embodiments provide a kind of method of adjustment of display module, in display module, each odd-line pixels
The relative position of driving transistor is identical, and the relative position of the driving transistor of each even rows is identical, odd-line pixels
Driving transistor is different from the relative position of the driving transistor of even rows；As shown in figure 3, method includes：
S301, acquisition display module only show default picture in all odd-line pixels and pixel electrode leaping voltage meets
Corresponding first public electrode voltages during default saltus step scope, and display module only shows default picture in all even rows
Corresponding second public electrode voltages when face and pixel electrode leaping voltage meet default saltus step scope；
S302, when all row pixels of display module show default picture, according to the first public electrode voltages and second
What the driving transistor of the magnitude relationship between public electrode voltages, regulation odd-line pixels and/or even rows was applied
Grid opens voltage, until the corresponding pixel electrode leaping voltage of odd-line pixels pixel electrode corresponding with even rows is jumped
The difference of time variant voltage meets preset difference value scope；Wherein, the driving transistor of each odd-line pixels applies identical grid opening electricity
Pressure, the driving transistor of each even rows applies identical grid and opens voltage.
The method of adjustment of above-mentioned display module provided in an embodiment of the present invention, as shown in Fig. 2 due to pixel electrode saltus step electricity
The presence of pressure Δ V so that the actual voltage value of public electrode voltages Vcom is relative to central valueIt is less.Therefore it is logical
Only when odd-line pixels show, the pixel electrode leaping voltage for obtaining display module meets default saltus step model to excessive display module
Corresponding first public electrode voltages when enclosing；And when display module only shows default picture in all even rows, obtain
Corresponding second public electrode voltages when the pixel electrode leaping voltage for taking display module meets default saltus step scope；To showing
The driving transistor of each odd-line pixels in module applies identical grid and opens voltage and the drive to each even rows
Dynamic transistor applies identical grid and opens voltage, during so that all pixels of display module carrying out showing default picture, according to
Magnitude relationship between first public electrode voltages and the second public electrode voltages, adjusts odd-line pixels and/or even number line picture
The grid that the driving transistor of element is applied opens voltage, until the corresponding pixel electrode leaping voltage of odd-line pixels and even number
The difference of the corresponding pixel electrode leaping voltage of row pixel meets preset difference value scope.So as in the corresponding pixel electricity of odd-line pixels
When the difference of pole leaping voltage and the corresponding pixel electrode leaping voltage of even rows meets preset difference value scope, it is believed that strange
Several rows pixel reaches unanimity with the pixel electrode leaping voltage of even rows, and then can avoid the flicker picture of display module
The problem for being difficult to adjust.
In actual applications, due to the difference of applied environment, the flicker to display module requires also difference, therefore to showing
The requirement of the size of the pixel electrode leaping voltage of module is also differed.In the specific implementation, provided in an embodiment of the present invention
In said method, default saltus step scope needs actually to be determined according to actual application environment, is not limited thereto.
In actual applications, the corresponding pixel electrode leaping voltage of odd-line pixels and even rows can not typically be realized
Corresponding pixel electrode leaping voltage is essentially equal, therefore can illustrate that it is phase when its deviation is in the range of error is allowed
Deng.In the specific implementation, in said method provided in an embodiment of the present invention, preset difference value scope is according to empirical
Difference error allowed band.For example, preset difference value may range from -0.100-0.100, or -0.01-0.01, or -
0.001-0.001.Certainly, because different adjustment flashes requirement difference of the method for picture to difference error allowed band, therefore
Preset difference value scope needs the difference error allowed band according to required by actual application environment to design determination, and here is not limited
It is fixed.
In the specific implementation, in said method provided in an embodiment of the present invention, display module is obtained only in all odd numbers
Row pixel shows default picture and pixel electrode leaping voltage meets corresponding first public electrode voltages when presetting saltus step scope,
As shown in figure 4, specifically can include：
S401, the driving transistor to each odd-line pixels of display module apply identical grid and open voltage, make to show
Show that module displays preset picture；
S402, the public electrode voltages for adjusting display module, the pixel electrode leaping voltage for making display module reduces；
S403, when judging that pixel electrode leaping voltage meets default saltus step scope, it is determined that the public electrode electricity after adjustment
Press as the first public electrode voltages.
In the specific implementation, in said method provided in an embodiment of the present invention, display module is obtained only in all even numbers
Row pixel shows default picture and pixel electrode leaping voltage meets corresponding second public electrode voltages when presetting saltus step scope,
As shown in figure 5, specifically can include：
S501, the driving transistor to each even rows of display module apply identical grid and open voltage, make to show
Show that module displays preset picture；
S502, the public electrode voltages for adjusting display module, the pixel electrode leaping voltage for making display module reduces；
S503, when judging that pixel electrode leaping voltage meets default saltus step scope, it is determined that the public electrode electricity after adjustment
Press as the second public electrode voltages.
In the specific implementation, in said method provided in an embodiment of the present invention, until the corresponding picture of odd-line pixels
The difference of plain electrode leaping voltage and the corresponding pixel electrode leaping voltage of even rows is met after preset difference value scope, is also wrapped
Include：
The corresponding pixel electrode leaping voltage of record odd-line pixels pixel electrode saltus step electricity corresponding with even rows
When the difference of pressure meets preset difference value scope, odd-line pixels grid opening voltage corresponding with even rows difference, and according to
The grid that recorded opens voltage and respectively odd-line pixels in display module and even rows is carried out with grid opening voltage burning
Record.When so entering the regulation of line flicker picture to the display module after burning again, the flicker of display module can be fast and effectively made
Value reaches optimum state.
In said method provided in an embodiment of the present invention, according to the first public electrode voltages and the second public electrode voltages
Between magnitude relationship, adjust the grid that the driving transistor of odd-line pixels and/or even rows applied and open voltage
The step of, can specifically adopt following methods.
Embodiment one,
In the specific implementation, in said method provided in an embodiment of the present invention, in the first public electrode voltages less than the
During two public electrode voltages, increase the grid opening voltage that the driving transistor of odd-line pixels is applied.So due to first
Public electrode voltages are less than the second public electrode voltages, illustrate the Δ Vs of the Δ V less than even rows of odd-line pixels, with reference to
The formula that Δ V meets, by the VGH for increasing odd-line pixels, so that the Δ V of odd-line pixels increases, and then can make strange
The Δ V of several rows pixel reaches unanimity with the Δ V of even rows.Increase the schematic diagram after the VGH of odd-line pixels, such as Fig. 6 a institutes
Show, it can be seen that the VGH of odd-line pixels (G (2n-1), G (2n+1), G (2n+3)) is than even rows (G (2n), G (2n+
2), G (2n+4)) VGH it is big；Wherein, n is positive integer.
Embodiment two,
In the specific implementation, in said method provided in an embodiment of the present invention, in the first public electrode voltages less than the
During two public electrode voltages, reduce the grid opening voltage that the driving transistor of even rows is applied.So due to first
Public electrode voltages are less than the second public electrode voltages, illustrate the Δ Vs of the Δ V less than even rows of odd-line pixels, with reference to
The formula that Δ V meets, by the VGH for reducing even rows, so that the Δ V of even rows reduces, and then can make strange
The Δ V of several rows pixel reaches unanimity with the Δ V of even rows.
Embodiment three,
In the specific implementation, in said method provided in an embodiment of the present invention, in the first public electrode voltages less than the
During two public electrode voltages, increase grid opening voltage and reduction even number line picture that the driving transistor of odd-line pixels is applied
The grid that the driving transistor of element is applied opens voltage.So because the first public electrode voltages are less than the second public electrode electricity
Pressure, illustrates the Δ Vs of the Δ V less than even rows of odd-line pixels, with reference to the formula that Δ V meets, by both increasing odd-numbered line
The VGH of pixel reduces the VGH of even rows again, so as to the Δ V for not only making odd-line pixels increases but also make the Δ V of even rows
Reduce, and then can quickly make the Δ V of odd-line pixels reach unanimity with the Δ V of even rows.
Example IV,
In the specific implementation, in said method provided in an embodiment of the present invention, in the second public electrode voltages less than the
During one public electrode voltages, increase the grid opening voltage that the driving transistor of even rows is applied.So due to second
Public electrode voltages are less than the first public electrode voltages, illustrate the Δ Vs of the Δ V less than odd-line pixels of even rows, with reference to
The formula that Δ V meets, by the VGH for increasing even rows, so that the Δ V of even rows increases, and then makes odd-numbered line
The Δ V of pixel reaches unanimity with the Δ V of even rows.Increase the schematic diagram after the VGH of even rows, as shown in Figure 6 b,
It can be seen that the VGH of even rows (G (2n), G (2n+2), G (2n+4)) is than odd-line pixels (G (2n-1), G (2n+1), G
(2n+3) VGH) is big；Wherein, n is positive integer.
Embodiment five,
In the specific implementation, in said method provided in an embodiment of the present invention, in the second public electrode voltages less than the
During one public electrode voltages, reduce the grid opening voltage that the driving transistor of odd-line pixels is applied.So due to second
Public electrode voltages are less than the first public electrode voltages, illustrate the Δ Vs of the Δ V less than odd-line pixels of even rows.With reference to
The formula that Δ V meets, by the VGH for reducing odd-line pixels, so that the Δ V of odd-line pixels reduces, and then makes odd-numbered line
The Δ V of pixel reaches unanimity with the Δ V of even rows.
Embodiment six,
In the specific implementation, in said method provided in an embodiment of the present invention, in the second public electrode voltages less than the
During one public electrode voltages, increase grid opening voltage and reduction odd-numbered line picture that the driving transistor of even rows is applied
The grid that the driving transistor of element is applied opens voltage.So because the second public electrode voltages are less than the first public electrode electricity
Pressure, illustrates the Δ Vs of the Δ V less than odd-line pixels of even rows, with reference to the formula that Δ V meets, by both increasing even number line
The VGH of pixel reduces the VGH of odd-line pixels again, can not only make the Δ V of even rows and increase but also make the Δ V of odd-line pixels
Reduce, and then can quickly make the Δ V of odd-line pixels reach unanimity with the Δ V of even rows.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of adjusting apparatus of display module, such as Fig. 7 institutes
Show, in display module 710, the relative position of the driving transistor of each odd-line pixels is identical, the driving of each even rows
The relative position of transistor is identical, the relative position of the driving transistor of odd-line pixels and the driving transistor of even rows
It is different；Adjusting apparatus specifically can include：
Acquiring unit 720, only default picture and pixel electrode are shown for obtaining display module in all odd-line pixels
Corresponding first public electrode voltages when leaping voltage meets default saltus step scope, and display module is only in all even number line pictures
Element shows default picture and pixel electrode leaping voltage meets corresponding second public electrode voltages when presetting saltus step scope；
Adjustment unit 730, for when all row pixels of display module show default picture, according to the first public electrode
Magnitude relationship between voltage and the second public electrode voltages, adjusts the driving crystal of odd-line pixels and/or even rows
The grid that pipe is applied opens voltage, until the corresponding pixel electrode leaping voltage of odd-line pixels is corresponding with even rows
The difference of pixel electrode leaping voltage meets preset difference value scope；Wherein, the driving transistor of each odd-line pixels applies identical
Grid opens voltage, and the driving transistor of each even rows applies identical grid and opens voltage.
The adjusting apparatus of above-mentioned display module provided in an embodiment of the present invention, by when display module is only in odd-line pixels
During display, the pixel electrode leaping voltage for obtaining display module meets corresponding first public electrode electricity during default saltus step scope
Pressure；And when display module only shows default picture in all even rows, obtain the pixel electrode saltus step of display module
Corresponding second public electrode voltages when voltage meets default saltus step scope；The drive of each odd-line pixels in display module
Dynamic transistor applies identical grid opening voltage and the driving transistor to each even rows applies identical grid and beats
Open voltage, it is public with second according to the first public electrode voltages during so that all pixels of display module carrying out showing default picture
The grid that the driving transistor of the magnitude relationship between common-battery pole tension, regulation odd-line pixels and/or even rows is applied
Voltage is opened in pole, until the pixel electrode saltus step corresponding with even rows of the corresponding pixel electrode leaping voltage of odd-line pixels
Difference in voltage meets preset difference value scope.So as in the corresponding pixel electrode leaping voltage of odd-line pixels and even rows pair
When the difference of the pixel electrode leaping voltage answered meets preset difference value scope, it is believed that the picture of odd-line pixels and even rows
Plain electrode leaping voltage reaches unanimity, and then the flicker picture of display module can be avoided to be difficult the problem for adjusting.
In actual applications, due to the difference of applied environment, the flicker to display module requires also difference, therefore to showing
The requirement of the size of the pixel electrode leaping voltage of module is also differed.In the specific implementation, provided in an embodiment of the present invention
In said method, default saltus step scope needs actually to be determined according to actual application environment, is not limited thereto.
In actual applications, the corresponding pixel electrode leaping voltage of odd-line pixels and even rows can not typically be realized
Corresponding pixel electrode leaping voltage is essentially equal, therefore can illustrate that it is phase when its deviation is in the range of error is allowed
Deng.In the specific implementation, in said method provided in an embodiment of the present invention, preset difference value scope is according to empirical
Difference error allowed band.For example, preset difference value may range from -0.100-0.100, or -0.01-0.01, or -
0.001-0.001.Certainly, because different adjustment flashes requirement difference of the method for picture to difference error allowed band, therefore
Preset difference value scope needs the difference error allowed band according to required by actual application environment to design determination, and here is not limited
It is fixed.
In the specific implementation, in said apparatus provided in an embodiment of the present invention, adjustment unit specifically can be used for：
When one public electrode voltages are less than the second public electrode voltages, the grid that the driving transistor of increase odd-line pixels is applied is beaten
Open voltage.
Or, adjustment unit specifically can be used for：When the first public electrode voltages are less than the second public electrode voltages, subtract
The grid that the driving transistor of little even rows is applied opens voltage.
It is preferred that adjustment unit specifically can be used for：When the first public electrode voltages are less than the second public electrode voltages,
Increase the grid opening voltage that the driving transistor of odd-line pixels is applied, and reduce the driving transistor institute of even rows
The grid of applying opens voltage.
In the specific implementation, in said apparatus provided in an embodiment of the present invention, adjustment unit specifically can be used for：
When two public electrode voltages are less than the first public electrode voltages, the grid that the driving transistor of increase even rows is applied is beaten
Open voltage.
Or, adjustment unit specifically can be used for：When the second public electrode voltages are less than the first public electrode voltages, subtract
The grid that the driving transistor of little odd-line pixels is applied opens voltage.
It is preferred that adjustment unit specifically can be used for：When the second public electrode voltages are less than the first public electrode voltages,
Increase the grid opening voltage that the driving transistor of even rows is applied, and reduce the driving transistor institute of odd-line pixels
The grid of applying opens voltage.
In the specific implementation, in said apparatus provided in an embodiment of the present invention, acquiring unit specifically can be used for：To aobvious
Show that the driving transistor of each odd-line pixels of module applies identical grid and opens voltage, make display module show default picture
Face；The public electrode voltages of display module are adjusted, the pixel electrode leaping voltage for making display module reduces；Judging pixel electrode
When leaping voltage meets default saltus step scope, it is determined that the public electrode voltages after adjustment are the first public electrode voltages.
In the specific implementation, in said apparatus provided in an embodiment of the present invention, acquiring unit specifically can be used for：To aobvious
Show that the driving transistor of each even rows of module applies identical grid and opens voltage, make display module show default picture
Face；The public electrode voltages of display module are adjusted, the pixel electrode leaping voltage for making display module reduces；Judging pixel electrode
When leaping voltage meets default saltus step scope, it is determined that the public electrode voltages after adjustment are the second public electrode voltages.
In the specific implementation, in said apparatus provided in an embodiment of the present invention, can also include：
Recording unit, for recording the corresponding pixel electrode leaping voltage of odd-line pixels picture corresponding with even rows
When the difference of plain electrode leaping voltage meets preset difference value scope, odd-line pixels grid corresponding with even rows difference is opened
Voltage；
Burning unit, for opening voltage respectively to odd-line pixels in display module and even number according to the grid that recorded
Row pixel carries out grid and opens voltage burning.
The method of adjustment and device of above-mentioned display module provided in an embodiment of the present invention, by when display module is only in odd number
When row pixel shows, corresponding first common electrical when the pixel electrode leaping voltage for obtaining display module meets default saltus step scope
Pole tension；And when display module only shows default picture in all even rows, obtain the pixel electrode of display module
Corresponding second public electrode voltages when leaping voltage meets default saltus step scope；Each odd-line pixels in display module
Driving transistor apply that identical grid opens voltage and the driving transistor to each even rows applies identical grid
Voltage is opened in pole, during so that all pixels of display module carrying out showing default picture, according to the first public electrode voltages and the
Magnitude relationship between two public electrode voltages, the driving transistor for adjusting odd-line pixels and/or even rows is applied
Grid open voltage, until the corresponding pixel electrode leaping voltage of odd-line pixels pixel electrode corresponding with even rows
The difference of leaping voltage meets preset difference value scope.So as in the corresponding pixel electrode leaping voltage of odd-line pixels and even number line picture
When the difference of the corresponding pixel electrode leaping voltage of element meets preset difference value scope, it is believed that odd-line pixels and even rows
Pixel electrode leaping voltage reach unanimity, and then can avoid display module flicker picture be difficult adjust problem.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (10)
1. a kind of method of adjustment of display module, in the display module, the driving transistor of each odd-line pixels it is relative
Position is identical, and the relative position of the driving transistor of each even rows is identical, the driving transistor of the odd-line pixels with
The relative position of the driving transistor of the even rows is different；Characterized in that, methods described includes：
Obtain the display module and only show that presetting picture and pixel electrode leaping voltage satisfaction presets in all odd-line pixels
Corresponding first public electrode voltages during saltus step scope, and the display module only shows described pre- in all even rows
If corresponding second public electrode voltages when picture and pixel electrode leaping voltage meet default saltus step scope；
When all row pixels of the display module show the default picture, according to first public electrode voltages and institute
The magnitude relationship between the second public electrode voltages is stated, the driving of the odd-line pixels and/or the even rows is adjusted
The grid that transistor is applied opens voltage, until the corresponding pixel electrode leaping voltage of the odd-line pixels and the even number
The difference of the corresponding pixel electrode leaping voltage of row pixel meets preset difference value scope；Wherein, the driving of each odd-line pixels
Transistor applies identical grid and opens voltage, and the driving transistor of each even rows applies identical grid and opens electricity
Pressure.
2. the method for claim 1, it is characterised in that described according to first public electrode voltages and described second
Magnitude relationship between public electrode voltages, adjusts the driving transistor of the odd-line pixels and/or the even rows
The grid for being applied opens voltage, specifically includes：
When first public electrode voltages are less than second public electrode voltages, increase the driving of the odd-line pixels
The grid that transistor is applied opens voltage, and/or, the grid that the driving transistor of the reduction even rows is applied is beaten
Open voltage；
When second public electrode voltages are less than first public electrode voltages, increase the driving of the even rows
The grid that transistor is applied opens voltage, and/or, the grid that the driving transistor of the reduction odd-line pixels is applied is beaten
Open voltage.
3. the method for claim 1, it is characterised in that the acquisition display module is only in all odd-line pixels
Show default picture and pixel electrode leaping voltage meets corresponding first public electrode voltages when presetting saltus step scope, concrete bag
Include：
Identical grid opening voltage is applied to the driving transistor of each described odd-line pixels of the display module, is made described
Display module shows the default picture；
The public electrode voltages of the display module are adjusted, the pixel electrode leaping voltage for making the display module reduces；
When judging that the pixel electrode leaping voltage meets the default saltus step scope, it is determined that the public electrode voltages after adjustment
For first public electrode voltages.
4. the method for claim 1, it is characterised in that the acquisition display module is only in all even rows
Show the default picture and pixel electrode leaping voltage meets corresponding second public electrode electricity during the default saltus step scope
Pressure, specifically includes：
Identical grid opening voltage is applied to the driving transistor of each described even rows of the display module, is made described
Display module shows the default picture；
The public electrode voltages of the display module are adjusted, the pixel electrode leaping voltage for making the display module reduces；
When judging that the pixel electrode leaping voltage meets the default saltus step scope, it is determined that the public electrode voltages after adjustment
For second public electrode voltages.
5. the method as described in any one of claim 1-4, it is characterised in that described until the odd-line pixels pair
The difference of the corresponding pixel electrode leaping voltage of the pixel electrode leaping voltage and the even rows answered meets preset difference value model
After enclosing, also include：
Record the corresponding pixel electrode leaping voltage of odd-line pixels pixel electrode corresponding with the even rows to jump
When the difference of time variant voltage meets preset difference value scope, odd-line pixels grid corresponding with even rows difference is opened
Voltage, and voltage is opened respectively to odd-line pixels described in the display module and the even number line according to the grid that recorded
Pixel carries out grid and opens voltage burning.
6. a kind of adjusting apparatus of display module, in the display module, the driving transistor of each odd-line pixels it is relative
Position is identical, and the relative position of the driving transistor of each even rows is identical, the driving transistor of the odd-line pixels with
The relative position of the driving transistor of the even rows is different；Characterized in that, described device includes：
Acquiring unit, only default picture and pixel electrode saltus step are shown for obtaining the display module in all odd-line pixels
Corresponding first public electrode voltages when voltage meets default saltus step scope, and the display module is only in all even number line pictures
Element shows the default picture and pixel electrode leaping voltage meets corresponding second public electrode during the default saltus step scope
Voltage；
Adjustment unit, it is public according to described first for when all row pixels of the display module show the default picture
Magnitude relationship between common-battery pole tension and second public electrode voltages, adjusts the odd-line pixels and/or the idol
The grid that the driving transistor of several rows pixel is applied opens voltage, until the corresponding pixel electrode saltus step of the odd-line pixels
The difference of voltage and the corresponding pixel electrode leaping voltage of the even rows meets preset difference value scope；Wherein, it is each described strange
The driving transistor of several rows pixel applies identical grid and opens voltage, and the driving transistor of each even rows applies phase
Same grid opens voltage.
7. device as claimed in claim 6, it is characterised in that the adjustment unit specifically for：
When first public electrode voltages are less than second public electrode voltages, increase the driving of the odd-line pixels
The grid that transistor is applied opens voltage, and/or, the grid that the driving transistor of the reduction even rows is applied is beaten
Open voltage；
When second public electrode voltages are less than first public electrode voltages, increase the driving of the even rows
The grid that transistor is applied opens voltage, and/or, the grid that the driving transistor of the reduction odd-line pixels is applied is beaten
Open voltage.
8. device as claimed in claim 6, it is characterised in that the acquiring unit specifically for：To the display module
The driving transistor of each odd-line pixels applies identical grid and opens voltage, shows the display module described default
Picture；The public electrode voltages of the display module are adjusted, the pixel electrode leaping voltage for making the display module reduces；Sentencing
The pixel electrode leaping voltage break when meeting the default saltus step scope, it is determined that the public electrode voltages after adjustment are described the
One public electrode voltages.
9. device as claimed in claim 6, it is characterised in that the acquiring unit specifically for：To the display module
The driving transistor of each even rows applies identical grid and opens voltage, shows the display module described default
Picture；The public electrode voltages of the display module are adjusted, the pixel electrode leaping voltage for making the display module reduces；Sentencing
The pixel electrode leaping voltage break when meeting the default saltus step scope, it is determined that the public electrode voltages after adjustment are described the
Two public electrode voltages.
10. the device as described in any one of claim 6-9, it is characterised in that also include：
Recording unit, it is corresponding with the even rows for recording the corresponding pixel electrode leaping voltage of the odd-line pixels
The difference of pixel electrode leaping voltage when meeting preset difference value scope, the odd-line pixels are right respectively with the even rows
The grid answered opens voltage；
Burning unit, for according to the grid that recorded open voltage respectively to odd-line pixels described in the display module with
The even rows carry out grid and open voltage burning.
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| CN106683633B (en) | 2019-04-30 |
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