CN109326257A - A kind of driving method of display panel, display drive apparatus and display device - Google Patents
A kind of driving method of display panel, display drive apparatus and display device Download PDFInfo
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- CN109326257A CN109326257A CN201811393128.3A CN201811393128A CN109326257A CN 109326257 A CN109326257 A CN 109326257A CN 201811393128 A CN201811393128 A CN 201811393128A CN 109326257 A CN109326257 A CN 109326257A
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- public electrode
- voltage
- luma data
- compensation value
- voltage compensation
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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
Abstract
The invention discloses a kind of driving method of display panel, display drive apparatus and display devices, comprising: according to the luma data of frame picture to be shown, determines the luma data voltage of each public electrode corresponding region；Corresponding relationship between the voltage compensation value of the position and public electrode of each luma data voltage according to the pre-stored data and the public electrode, determines the voltage compensation value of each public electrode；While loading luma data to sub-pixel, compensated using voltage of the voltage compensation value determined to public electrode.Compared with prior art, the present invention passes through the corresponding relationship between the luma data voltage of each public electrode corresponding region and the voltage compensation value of public electrode, public electrode voltages are compensated, VCOM is offset to pull, VCOM spread of voltage caused by so as to improve being pulled because of VCOM, and then the problem of influence image quality.
Description
Technical field
The present invention relates to field of display technology, in particular to a kind of driving method of display panel, display drive apparatus and
Display device.
Background technique
In LCD technology, different voltage need to be applied on the liquid crystal capacitance of each pixel, to reach liquid crystal deflection, most
The bright picture of terminal.Liquid crystal capacitance one end is public electrode voltages (VCOM voltage), and the other end is data line voltage (GAMMA electricity
Pressure).VCOM voltage is the reference voltage of liquid crystal molecule deflection, and stability directly affects liquid crystal display.
In the prior art, since public electrode is divided into multiple induction electrodes (sensor), lead to common electrode signal
Coupling is serious, and when showing picture, public electrode voltages are easy to be influenced by data voltage variation, to cause public electrode
Voltage disturbance phenomenon influences the display quality of display panel.
Summary of the invention
The embodiment of the present invention provides the driving method, display drive apparatus and display device of a kind of display panel, to solve
Blocky common electrode signal coupling certainly in the prior art is serious, when showing picture, drawing of the public electrode vulnerable to data-signal
It is dynamic, the problem of causing public electrode unstable and then influence image quality.
Therefore, the embodiment of the invention provides a kind of driving methods of display panel, comprising:
According to the luma data of frame picture to be shown, the luma data voltage of each public electrode corresponding region is determined；
The position of each luma data voltage according to the pre-stored data and the public electrode and the public electrode
Corresponding relationship between voltage compensation value determines the voltage compensation value of each public electrode；
While loading the luma data to sub-pixel, using the voltage compensation value determined to described public
The voltage of electrode compensates.
In the specific implementation, described according to frame picture to be shown in above-mentioned driving method provided in an embodiment of the present invention
Luma data, determine the luma data voltage of each public electrode corresponding region, specifically include:
The public electrode, which is obtained, after multiple luma data voltages of the public electrode corresponding region are weighted corresponds to area
The luma data voltage in domain.
In the specific implementation, described according to the pre-stored data each in above-mentioned driving method provided in an embodiment of the present invention
Corresponding relationship between the luma data voltage and the voltage compensation value of the public electrode determines each public electrode
Voltage compensation value, specifically:
It is determined according to the position of the luma data voltage of each public electrode corresponding region and public electrode described public
Electrode voltage is pulled range value；
Using the negative value for being pulled range value of the public electrode voltages as the voltage compensation value of the public electrode.
In the specific implementation, described described using determining in above-mentioned driving method provided in an embodiment of the present invention
Voltage compensation value compensates the voltage of the public electrode, specifically includes:
The public electrode is driven using the sum of the initial voltage of the public electrode and described voltage compensation value.
In the specific implementation, in above-mentioned driving method provided in an embodiment of the present invention, the display panel has multiple
Region, each described region include multiple public electrodes, and each public electrode corresponding region includes multiple described
Sub-pixel；It is described that the voltage of the public electrode is compensated using the voltage compensation value determined, specifically:
The time that the public electrode of corner areas carries out voltage compensation is less than, electricity is carried out to the public electrode of neighboring area
The time for pressing compensation, to the time that the public electrode of neighboring area carries out voltage compensation be less than to the public electrode of intermediate region into
The time of row voltage compensation.
Correspondingly, the embodiment of the invention also provides a kind of display drive apparatus, comprising:
First determination unit determines each public electrode corresponding region for the luma data according to frame picture to be shown
Luma data voltage；
Second determination unit, the position for each the luma data voltage and the public electrode according to the pre-stored data
Corresponding relationship between the voltage compensation value of the public electrode determines the voltage compensation value of each public electrode；
Compensating unit, for being mended using the voltage determined while loading the luma data to sub-pixel
Value is repaid to compensate the voltage of the public electrode；
Storage unit, for being stored in advance between each luma data voltage and the voltage compensation value of the public electrode
Corresponding relationship.
In the specific implementation, in above-mentioned display drive apparatus provided in an embodiment of the present invention, first determination unit
Area is corresponded to specifically for obtaining the public electrode after weighting multiple luma data voltages of the public electrode corresponding region
The luma data voltage in domain.
In the specific implementation, in above-mentioned display drive apparatus provided in an embodiment of the present invention, second determination unit
Specifically for according to the determination of the position of the luma data voltage of each public electrode corresponding region and the public electrode
Public electrode voltages are pulled range value, using the negative value for being pulled range value of the public electrode voltages as described public
The voltage compensation value of electrode.
In the specific implementation, in above-mentioned display drive apparatus provided in an embodiment of the present invention, the compensating unit is specific
For the sum of the initial voltage of the public electrode and the voltage compensation value to be driven the public electrode.
Correspondingly, the embodiment of the invention also provides a kind of display device, including it is provided in an embodiment of the present invention above-mentioned aobvious
Show driving device.
The present invention has the beneficial effect that:
Driving method, display drive apparatus and the display device of display panel provided in an embodiment of the present invention, comprising: according to
The luma data of frame picture to be shown determines the luma data voltage of each public electrode corresponding region；It is according to the pre-stored data each
Corresponding relationship between the voltage compensation value of the position and public electrode of luma data voltage and the public electrode, determines each public affairs
The voltage compensation value of common electrode；While loading luma data to sub-pixel, using the voltage compensation value determined to public
The voltage of electrode compensates.Compared with prior art, the luma data voltage that the present invention passes through each public electrode corresponding region
Corresponding relationship between the voltage compensation value of public electrode, compensates public electrode voltages, offsets VCOM and pulls, thus
The problem of improving VCOM spread of voltage caused by pulling because of VCOM, and then influencing image quality.
Detailed description of the invention
Fig. 1 is the coupled capacitor structural schematic diagram of public electrode in the related technology；
Fig. 2 is the structure schematic diagram that public electrode voltages are pulled by data voltage in the related technology；
Fig. 3 is one of the driving method flow chart of display panel provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of public electrode voltages recovery situation provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the corresponding sub-pixel of each public electrode provided in an embodiment of the present invention；
Fig. 6 is the two of the driving method flow chart of display panel provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of each public electrode of display panel provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram provided in an embodiment of the present invention compensated to public electrode voltages；
Fig. 9 is the structural schematic diagram of display drive apparatus provided in an embodiment of the present invention.
Specific embodiment
In order to make the purpose of the present invention, the technical scheme and advantages are more clear, with reference to the accompanying drawing, to the embodiment of the present invention
The specific embodiment of the driving method of the display panel of offer, display drive apparatus and display device is described in detail.
It should be appreciated that preferred embodiment disclosed below is only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.And
In the absence of conflict, the features in the embodiments and the embodiments of the present application can be combined with each other.It should be noted that attached
Each layer film thickness and shape do not reflect actual proportions in figure, and purpose is schematically illustrate the content of present invention.And from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.
In the related technology, the public electrode of the display panel based on TDDI technology is divided into multiple induction electrodes
(SensorITO), since there are more coupled capacitors between SensorITO layers and adjacent ITO or metal wire, as shown in Figure 1,
There are the schematic diagram of coupled capacitor between SensorITO layers and adjacent ITO or metal wire, the lower left corner of Fig. 1 illustrates more Fig. 1
A public electrode (S1, S2, S3, S2 ' ... SN), the right half of Fig. 1 illustrates the coupling condition of S2 and S3, each public electrode
With adjacent public electrode or metal wire (such as Gate line, Data line, to signal wire L1, L2 of public electrode input signal) it
Between there is coupled capacitor, coupled capacitor at (1)-(8) is illustrated in Fig. 1, the coupling of public electrode is more serious, therefore causes
VCOM signal is easy to be influenced by data (Data) signal, and in the rising edge and failing edge of Data signal, VCOM signal is not easy
Restore, as shown in Fig. 2, Fig. 2 is the case where different corresponding public electrodes of data voltage is pulled, it can be seen that load is different
Data voltage, the case where public electrode is pulled is identical.Therefore public electrode voltages are easy to be changed by data voltage
It influences, to cause public electrode voltages disturbing phenomenon, influences the display quality of display panel.
Based on this, the embodiment of the invention provides a kind of driving methods of display panel, as shown in Figure 3, comprising:
S301, according to the luma data of frame picture to be shown, determine the luma data voltage of each public electrode corresponding region；
S302, the position of each luma data voltage according to the pre-stored data and the public electrode and public electrode voltage
Corresponding relationship between offset determines the voltage compensation value of each public electrode；
S303, to sub-pixel load luma data while, using the voltage compensation value determined to public electrode
Voltage compensates.
The driving method of display panel provided in an embodiment of the present invention include: according to the luma data of frame picture to be shown,
Determine the luma data voltage of each public electrode corresponding region；Each luma data voltage according to the pre-stored data and the common electrical
Corresponding relationship between the position of pole and the voltage compensation value of public electrode determines the voltage compensation value of each public electrode；Right
While sub-pixel loads luma data, compensated using voltage of the voltage compensation value determined to public electrode.With it is existing
There is technology to compare, the present invention by the voltage compensation value of the luma data voltage of each public electrode corresponding region and public electrode it
Between corresponding relationship, public electrode voltages are compensated, offset VCOM pull, so as to improve being pulled because of VCOM caused by VCOM
Spread of voltage, and then the problem of influence image quality.
It should be noted that on display panel different zones public electrode, suffered coupling condition is different, not same district
Domain, by an equal amount of data voltage pull when, public electrode voltages be pulled amplitude and recovery time is not identical；Same area
Domain is pulled by different size of data voltage, public electrode voltages to be pulled amplitude and recovery time also not identical.It therefore can
Between the voltage compensation value of the position and public electrode of each luma data voltage according to the pre-stored data and the public electrode
Corresponding relationship, determine the voltage compensation value of each public electrode.
In the specific implementation, corresponding between pre-stored each luma data voltage and the voltage compensation value of public electrode
Relationship is typically stored in external memory, but in practical operation, it is built-in to be stored in sequence controller (TCON)
Memory in.
In the specific implementation, the data (such as luma data voltage) handled in the embodiment of the present invention are digital signal.
In the specific implementation, public electrode voltages are restored slower, when showing picture, the problem for more easily causing image quality bad,
Since the load of the public electrode of different blocks is different, the recovery situation of public electrode voltages is not quite similar, is simulated by software,
Can be with the loading condition of each block public electrode of budget, sequence controller (TCON) is according to the corresponding luma data of each public electrode
Voltage analog goes out being pulled for the public electrode voltages of each block, then analog goes out the recovery of the public electrode voltages of each block
Situation, as shown in figure 4, Fig. 4 is the recovery situation after different public electrodes are pulled under same data voltage, curve table in figure
Show the recovery situation after being pulled, it can be seen that the load of public electrode is different, the recovery situation of public electrode voltages also not phase
Together, illustrate that load is different, coupling condition is different, and the speed of recovery is also not quite similar.
In the specific implementation, since the corresponding sub-pixel quantity of each public electrode is more, the case where VCOM is pulled, is not
It determines, in this regard, sequence controller (TCON) can analyze the luma data voltage feelings of the corresponding whole region of each public electrode
Condition, such as 10.1WUXGA 1920*RGB*1200 vertical screen project, public electrode piecemeal is 36*22, and an average public electrode is corresponding
Sub-pixel be distributed as 160*55 (it is partially a for 160*54), as shown in figure 5, include V1H1 ... V160H55 sub-pixel,
In every a line time, TCON anticipated that the corresponding luma data voltage of monolith public electrode, specifically, in the embodiment of the present invention
In the above-mentioned driving method provided, according to the luma data of frame picture to be shown, the grayscale of each public electrode corresponding region is determined
Data voltage specifically includes:
The grayscale of public electrode corresponding region is obtained after multiple luma data voltages of public electrode corresponding region are weighted
Data voltage.That is luma data weighted value of a voltage on monolith public electrode is obtained by calculation in TCON, obtains each public electrode
Corresponding luma data voltage.
In practical operation, TCON calculates public electrode voltages according to the corresponding luma data voltage of each public electrode
Pulling range value to determine voltage compensation value, public electrode voltages are compensated, offset VCOM pull, improve display picture
Quality.Since the amplitude that VCOM itself is pulled is related with the voltage of Data, for example, the Gamma voltage of Data include V1,
V2, V3 ... V6, it is assumed that V1 > V2 > V3 ... > V6, when Data output voltage is in V1, VCOM is pulled amplitude and is greater than Data in V6
Pulling amplitude.Therefore the corresponding luma data voltage of each public electrode is calculated to determine the voltage compensation of public electrode
Value.
In the specific implementation, in above-mentioned driving method provided in an embodiment of the present invention, as shown in fig. 6, according to depositing in advance
Corresponding relationship between each luma data voltage and the voltage compensation value of public electrode of storage determines that the voltage of each public electrode is mended
Value is repaid, specifically:
S601, determined according to the luma data voltage of each public electrode corresponding region and the position of the public electrode it is public
Electrode voltage is pulled range value；In practical operation, being pulled range value is size and the institute according to luma data voltage
State what the position of public electrode determined the pulling situation of public electrode；
S602, using the negative value for being pulled range value of public electrode voltages as the voltage compensation value of public electrode.
In the specific implementation, luma data voltage has a positive-negative polarity, the voltage compensation value of public electrode there is also polarity,
That is the voltage compensation value of public electrode may be positive polarity, it is also possible to negative polarity, when luma data voltage be positive polarity, it is public
Electrode voltage is also drawn to positive polarity, i.e. the range value that is pulled of public electrode voltages is positive value, then the voltage of public electrode
Offset should be the negative value for being pulled range value of the public electrode voltages；When luma data voltage is negative polarity, common electrical
Pole tension is also drawn to negative polarity, i.e. the range value that is pulled of public electrode voltages is negative value, then the voltage of public electrode is mended
Repay the negative value for being pulled range value that value should be the public electrode voltages.
In the specific implementation, pair between pre-stored each luma data voltage and the voltage compensation value of public electrode
In should being related to, multiple luma data voltages can correspond to a voltage compensation value, two ashes corresponding to same voltage compensation value
Difference between rank data voltage is less than predetermined difference value.Such as according to picture gray level information, according to Gamma voltage by image information
Several groups are classified as, for example can simply divide into the corresponding voltage compensation value of luma data voltage of 0~64 grayscale, 65~128
The corresponding voltage compensation value of the luma data voltage of grayscale, the corresponding voltage of the luma data voltage of 129~192 grayscale are mended
Repay value, the corresponding voltage compensation value of the luma data voltage of 193~255 grayscale.It therefore in the specific implementation, can be by grayscale
Data voltage is divided into several groups, and one suitable voltage compensation value of every group of correspondence can reduce the calculation amount of TCON in this way.When
So, it when it is implemented, being not limited to divide above-mentioned several groups, can be determined according to the actual situation.
In the specific implementation, in above-mentioned driving method provided in an embodiment of the present invention, using the voltage compensation determined
Value compensates the voltage of public electrode, specifically includes:
Public electrode is driven using the sum of the initial voltage of public electrode and voltage compensation value.Specifically, it calculates public
The corresponding luma data voltage of electrode, finds the voltage of the corresponding public electrode of luma data voltage from above-mentioned corresponding relationship
Offset, so that the sum of the initial voltage of public electrode and voltage compensation value are driven public electrode.
In the specific implementation, in above-mentioned driving method provided in an embodiment of the present invention, display panel can be divided into
With multiple regions, each region includes multiple public electrodes, and each public electrode corresponding region includes multiple described
Sub-pixel；Specifically, as shown in fig. 7, display panel has corner areas, neighboring area and intermediate region, with display panel packet
For including 12 pieces of public electrodes, certainly when it is implemented, the number of public electrode is set according to actual needs；Due to each public affairs
The position of common electrode is different, the capacitive coupling situation of every piece of public electrode and to walk line impedence variant, therefore according to design when obtains
The coupled capacitor and resistance value on the public electrode periphery of the different zones arrived, can simulate the public electrode voltages of different zones
By data voltage pull and restore as a result, so as to reverse push export under corresponding data voltage to each public electrode
Voltage compensation situation, database is established according to this, as storage unit, is called in practical application.Based on this, position can be predicted
It, similarly, can (can be with according to loading condition by 12 pieces of public electrodes in identical with the load of 12 public electrode marked as 1,3,10
Negligible resistance influences), the public electrode marked as 1,3,10 and 12 is divided into positioned at corner areas, marked as 2,4,6,7,9
The public electrode that is divided into positioned at neighboring area, marked as 5 and 8 of public electrode with 11 is divided into positioned at intermediate region；Relatively
Ground, since the number of the other public electrodes adjacent with the public electrode of intermediate region is more than the public electrode phase with neighboring area
The number of adjacent other public electrodes, the number of the other public electrodes adjacent with the public electrode of neighboring area is more than and corner
The number of the adjacent other public electrodes of the public electrode in region, therefore corner areas, neighboring area, the corresponding public affairs in intermediate region
The coupling condition of common-battery pole tension successively increases, coupling it is more serious, public electrode voltages restore it is slower, therefore corner areas,
Neighboring area, the recovery situation of the corresponding public electrode voltages in intermediate region are slower and slower, restore slower to public electrode voltages
Region, the time for carrying out common electrode voltage compensation is longer, therefore, using the voltage compensation value determined to public electrode
Voltage compensate, be specifically as follows:
The time that the public electrode of corner areas carries out voltage compensation is less than, electricity is carried out to the public electrode of neighboring area
The time for pressing compensation, to the time that the public electrode of neighboring area carries out voltage compensation be less than to the public electrode of intermediate region into
The time of row voltage compensation.
Specifically, IC prestores the load information of each public electrode, such as in the intermediate region that public electrode restores poor
(5 and 8 regions), coupling acutely, can suitably lengthen the time of compensation, then revert to initial public electrode voltages again；?
Corner areas (regions of such as 1,3,10 and 12), coupling is smaller, can suitably reduce the time of compensation.When it is implemented, can be with
The coupled capacitor size for calculating each public electrode periphery simulates the waveform that public electrode voltages are pulled, determines public
The recovery time of electrode voltage, it is stored to IC in advance, as shown in figure 8, for the present invention using above-mentioned driving method to public electrode
The schematic diagram that voltage compensates, the nethermost waveform for luma data voltage VSource in figure, 1 indicate to prestore it is public
The waveform that electrode voltage is pulled, it can be seen that public electrode voltages are pulled in the rising edge and failing edge of VSource；2
Indicate that the waveform that voltage compensation is carried out to public electrode, longitudinal four-headed arrow indicate that voltage compensation value, lateral four-headed arrow indicate
Overcharge the time；3 indicate the voltage waveform of compensated public electrode.
To sum up, the present invention proposes to restore public electrode voltages, the i.e. voltage compensation value and benefit of public electrode in terms of two
It repays the time, IC determines luma data voltage with the electricity of the corresponding public electrode of each luma data voltage of determination according to image information
Offset is pressed, and the time is compensated in the position of display panel to determine according to public electrode.Such as: IC built in common electrode power supply
Module and switch unit provide initial public electrode voltages VCOM and the corresponding voltage compensation value of each group luma data
Δ VCOM1, Δ VCOM and Δ VCOM3, if Δ VCOM1 < Δ VCOM2 < Δ VCOM3, folded using initial public electrode voltages
In addition Δ VCOM drives public electrode.Since the amplitude that public electrode itself is pulled is related with the voltage of Data, for example, Data
Gamma voltage include V1, V2, V3 ... V6, it is assumed that V1 > V2 > V3 ... > V6, when Data output voltage is in V1, public electrode electricity
Pressure is pulled amplitude greater than pulling amplitude of the Data in V6.It is if analyzing the i.e. corresponding luma data voltage of image information
V1, public electrode voltages pulling is most violent, then output is set as VCOM+ Δ VCOM3；If image information, that is, corresponding gray number
It is V6 according to voltage, public electrode voltages are slightly pulled, then output are set as VCOM+ Δ VCOM1.
Based on the same inventive concept, the embodiment of the invention also provides a kind of display drive apparatus, as shown in Figure 9, comprising:
First determination unit 10 determines each public electrode corresponding region for the luma data according to frame picture to be shown
Luma data voltage；
Second determination unit 20, for the position of each luma data voltage according to the pre-stored data and the public electrode with
Corresponding relationship between the voltage compensation value of public electrode determines the voltage compensation value of each public electrode；
Compensating unit 30 is used for while loading luma data to sub-pixel, using the voltage compensation value pair determined
The voltage of public electrode compensates；
Storage unit 40, it is corresponding between each luma data voltage and the voltage compensation value of public electrode for being stored in advance
Relationship.
When it is implemented, the coupled capacitor and resistance value on the public electrode periphery of the different zones obtained when according to design,
Can simulate the public electrode voltages of different zones by data voltage pulls and restore as a result, so as to reverse push export
The voltage compensation situation to each public electrode under corresponding data voltage, establishes database according to this, as storage unit,
It is called in practical application.
In the specific implementation, in above-mentioned display drive apparatus provided in an embodiment of the present invention, the first determination unit is specific
For obtaining the luma data of public electrode corresponding region after weighting multiple luma data voltages of public electrode corresponding region
Voltage.
In the specific implementation, in above-mentioned display drive apparatus provided in an embodiment of the present invention, the second determination unit is specific
For determining public electrode voltages according to the luma data voltage of each public electrode corresponding region and the position of the public electrode
Be pulled range value, using the negative value for being pulled range value of public electrode voltages as the voltage compensation value of public electrode.
In the specific implementation, in above-mentioned display drive apparatus provided in an embodiment of the present invention, compensating unit is specifically used for
The sum of the initial voltage of public electrode and voltage compensation value are driven into public electrode.
Specifically, display drive apparatus provided in an embodiment of the present invention includes sequence controller, the first determination unit, second
Determination unit, compensating unit and storage unit are all set on sequence controller.
Based on the same inventive concept, the embodiment of the invention also provides a kind of display devices, including the embodiment of the present invention to mention
The above-mentioned display drive apparatus supplied.Since the principle that the display device solves the problems, such as is similar to a kind of aforementioned display drive apparatus,
Therefore the implementation of the display device may refer to the implementation of aforementioned display drive apparatus, and overlaps will not be repeated.
In the specific implementation, above-mentioned display device provided in an embodiment of the present invention can have for large size TV etc. is any
In the large-sized display devices of display function.Other essential component parts for the display device are this field
Those of ordinary skill should be understood that have, and this will not be repeated here, also should not be taken as limiting the invention.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Driving method, display drive apparatus and the display device of display panel provided in an embodiment of the present invention, comprising: according to
The luma data of frame picture to be shown determines the luma data voltage of each public electrode corresponding region；It is according to the pre-stored data each
Corresponding relationship between the voltage compensation value of the position and public electrode of luma data voltage and the public electrode, determines each public affairs
The voltage compensation value of common electrode；While loading luma data to sub-pixel, using the voltage compensation value determined to public
The voltage of electrode compensates.Compared with prior art, the luma data voltage that the present invention passes through each public electrode corresponding region
Corresponding relationship between the voltage compensation value of public electrode, compensates public electrode voltages, offsets VCOM and pulls, thus
The problem of improving VCOM spread of voltage caused by pulling because of VCOM, and then influencing image quality.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of driving method of display panel characterized by comprising
According to the luma data of frame picture to be shown, the luma data voltage of each public electrode corresponding region is determined；
The voltage of the position of each luma data voltage according to the pre-stored data and the public electrode and the public electrode
Corresponding relationship between offset determines the voltage compensation value of each public electrode；
While loading the luma data to sub-pixel, using the voltage compensation value determined to the public electrode
Voltage compensate.
2. driving method as described in claim 1, which is characterized in that the luma data according to frame picture to be shown, really
The luma data voltage of fixed each public electrode corresponding region, specifically includes:
The public electrode corresponding region is obtained after multiple luma data voltages of the public electrode corresponding region are weighted
Luma data voltage.
3. driving method as described in claim 1, which is characterized in that each luma data electricity according to the pre-stored data
Corresponding relationship between pressure and the voltage compensation value of the public electrode, determines the voltage compensation value of each public electrode, has
Body are as follows:
It is determined according to the position of the luma data voltage of each public electrode corresponding region and the public electrode described public
Electrode voltage is pulled range value；
Using the negative value for being pulled range value of the public electrode voltages as the voltage compensation value of the public electrode.
4. driving method as described in claim 1, which is characterized in that described to use the voltage compensation value determined to institute
The voltage for stating public electrode compensates, and specifically includes:
The public electrode is driven using the sum of the initial voltage of the public electrode and described voltage compensation value.
5. driving method as claimed in claim 4, which is characterized in that the display panel has multiple regions, each institute
Stating region includes multiple public electrodes, and each public electrode corresponding region includes multiple sub-pixels；It is described to adopt
The voltage of the public electrode is compensated with the voltage compensation value determined, specifically:
The time that the public electrode of corner areas carries out voltage compensation is less than, voltage benefit is carried out to the public electrode of neighboring area
The time repaid is less than the time that the public electrode of neighboring area carries out voltage compensation and carries out electricity to the public electrode of intermediate region
Press the time of compensation.
6. a kind of display drive apparatus characterized by comprising
First determination unit determines the grayscale of each public electrode corresponding region for the luma data according to frame picture to be shown
Data voltage；
Second determination unit, position and institute for each luma data voltage according to the pre-stored data and the public electrode
The corresponding relationship between the voltage compensation value of public electrode is stated, determines the voltage compensation value of each public electrode；
Compensating unit is used for while loading the luma data to sub-pixel, using the voltage compensation value determined
The voltage of the public electrode is compensated；
Storage unit, pair for being stored in advance between each luma data voltage and the voltage compensation value of the public electrode
It should be related to.
7. display drive apparatus as claimed in claim 6, which is characterized in that first determination unit is specifically used for will be described
The luma data electricity of the public electrode corresponding region is obtained after multiple luma data voltages weighting of public electrode corresponding region
Pressure.
8. display drive apparatus as claimed in claim 6, which is characterized in that second determination unit is specifically used for according to each
The luma data voltage of the public electrode corresponding region and the position of the public electrode determine the public electrode voltages
It is pulled range value, using the negative value for being pulled range value of the public electrode voltages as the voltage compensation of the public electrode
Value.
9. display drive apparatus as claimed in claim 6, which is characterized in that the compensating unit is specifically used for will be described public
The sum of the initial voltage of electrode and the voltage compensation value drive the public electrode.
10. a kind of display device, which is characterized in that including display drive apparatus as claim in any one of claims 6-9.
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| CN109326257B (en) | 2021-01-26 |
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