CN106960664A - A kind of method and device for realizing Polarity Control - Google Patents
A kind of method and device for realizing Polarity Control Download PDFInfo
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- CN106960664A CN106960664A CN201710380128.9A CN201710380128A CN106960664A CN 106960664 A CN106960664 A CN 106960664A CN 201710380128 A CN201710380128 A CN 201710380128A CN 106960664 A CN106960664 A CN 106960664A
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- polarity
- data wire
- control signal
- packet
- polarity control
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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
- G09G3/3685—Details of drivers for data electrodes
-
- 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
- G09G3/3614—Control of polarity reversal in general
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
A kind of method and device for realizing Polarity Control, realizing the method for Polarity Control includes：Time control integrated circuit exports two or more polarity control signals (POL) to source drive integrated circult；Source drive integrated circult carries out polarity output control according to the POL of reception to the data wire for delimiting packet in advance, so that the data wire of different grouping is not carrying out polarity inversion in the same time.The embodiment of the present invention avoids data wire while carrying out polarity output causes immediate current peak value, and then avoids the line afterimage phenomena caused by immediate current peak value.
Description
Technical field
Present document relates to but be not limited to Display Technique, espespecially a kind of method and device for realizing Polarity Control.
Background technology
At present, each source driver integrated circuit (Source driver IC) is exported comprising several in correlation technique
End, each output end connects a data lines respectively；Wherein, data wire includes odd data line and even data line, data
The polarity output of line is controlled by a polarity control signal (POL).
Fig. 1 is carries out the schematic diagram of the control of output polarity using a POL in correlation technique, as shown in figure 1, by the time
Control integrated circuit exports a POL, DC circuit (DC- respectively to the signal input part of each source driver integrated circuit
DC IC) provide the reversal voltage that polarity is exported for source driver integrated circuit；Fig. 2 be correlation technique in polarity control signal and
The relation schematic diagram of data, as shown in Fig. 2 during the input of each frame data, the data wire that all output ends are connected by a POL
Output polarity be controlled；Fig. 3 is the circuit diagram of progress polarity output control in correlation technique, as shown in figure 3, related
The control of the output polarity of data wire is only carried out in technology by a POL, when change occurs for output polarity (such as, when POL occurs
Trailing edge, output polarity changes) when, DC circuit provides the reverse current for carrying out polarity inversion for all data wires, this
When immediate current peak value occurs, immediate current peak value can influence reference voltage, so as to cause reference voltage voltage ripple occur
(ripple), and driving voltage drives liquid crystal with reference to reference voltage, if voltage ripple occurs in reference voltage, line can be caused
Afterimage phenomena, influences display effect.
The content of the invention
The following is the general introduction of the theme to being described in detail herein.This general introduction is not to limit the protection model of claim
Enclose.
The embodiment of the present invention provides a kind of method and device for realizing Polarity Control, can avoid producing immediate current peak
Value.
The embodiments of the invention provide a kind of method for realizing Polarity Control, including：
Time control integrated circuit exports two or more polarity control signals to source drive integrated circult；
It is defeated that source drive integrated circult carries out polarity according to the polarity control signal of reception to the data wire for delimiting packet in advance
Go out control, so that the data wire of different grouping is not carrying out polarity inversion in the same time.
Optionally, the packet delimited in advance includes：
Numbering is the data wire packet of odd number；
Numbering is the data wire packet of even number.
Optionally, the polarity control signal include the first polarity control signal and the second polarity control signal, it is described to
Source drive integrated circult, which exports two polarity control signals, to be included：
To data wire packet output first polarity control signal that numbering is odd number；To the institute that numbering is even number
State data wire packet output second polarity control signal.
Optionally, methods described also includes：
When the data wire carries out polarity inversion according to the polarity control signal, dc source is anti-to the polarity is carried out
The data wire turned provides reverse current.
Optionally, it is described not in the same time carry out polarity inversion include：
Polarity inversion is not carried out in the same time in data frame length.
On the other hand, the embodiment of the present invention also provides a kind of device for realizing Polarity Control, including：The integrated electricity of time control
Road, one or more source drive integrated circults；Wherein,
Time control integrated circuit is configured to：Two or more Polarity Controls letter is exported to source drive integrated circult
Number；
Source drive integrated circult is respectively configured as：According to the polarity control signal of reception to delimiting the data wire being grouped in advance
Polarity output control is carried out, so that the data wire of different grouping is not carrying out polarity inversion in the same time.
Optionally, the packet delimited in advance includes：
Numbering is the data wire packet of odd number；
Numbering is the data wire packet of even number.
Optionally, the polarity control signal includes the first polarity control signal and the second polarity control signal, when described
Between control integrated circuit be arranged to：
To data wire packet output first polarity control signal that numbering is odd number；To the institute that numbering is even number
State data wire packet output second polarity control signal.
Optionally, described device also includes：DC circuit；
The DC current is configured to：When the data wire carries out polarity inversion according to the polarity control signal, Xiang Jin
The data wire of the row polarity inversion provides reverse current.
Optionally, the source drive integrated circult is arranged to：Divided according to the polarity control signal of reception delimiting in advance
The data wire of group carries out polarity output control, so that the data wire of different grouping does not carry out pole in the same time in data frame length
Sex reversal.
Compared with correlation technique, technical scheme includes：Time control integrated circuit is defeated to source drive integrated circult
Go out two or more polarity control signals (POL)；Source drive integrated circult is according to the POL of reception to delimiting packet in advance
Data wire carries out polarity output control, so that the data wire of different grouping is not carrying out polarity inversion in the same time.The present invention is implemented
Example avoids data wire while carrying out polarity output causes immediate current peak value, and then avoids what is caused by immediate current peak value
Line afterimage phenomena.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by specification, rights
Specifically noted structure is realized and obtained in claim and accompanying drawing.
Brief description of the drawings
Accompanying drawing is used for providing further understanding technical solution of the present invention, and constitutes a part for specification, with this
The embodiment of application is used to explain technical scheme together, does not constitute the limitation to technical solution of the present invention.
Fig. 1 is the schematic diagram of the control for the output polarity for carrying out pin in correlation technique using POL；
Fig. 2 is the relation schematic diagram of polarity control signal and data in correlation technique；
Fig. 3 is the circuit diagram of progress polarity output control in correlation technique；
Fig. 4 realizes the flow chart of the method for Polarity Control for the embodiment of the present invention；
Fig. 5 is the circuit diagram for the control that the embodiment of the present invention is realized output polarity by two POL；
Fig. 6 is the signal schematic representation for the control that the embodiment of the present invention is realized output polarity by two POL；
Fig. 7 realizes the structured flowchart of the device of Polarity Control for the embodiment of the present invention.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with accompanying drawing to the present invention
Embodiment be described in detail.It should be noted that in the case where not conflicting, in the embodiment and embodiment in the application
Feature can mutually be combined.
Can be in the computer system of such as one group computer executable instructions the step of the flow of accompanying drawing is illustrated
Perform.And, although logical order is shown in flow charts, but in some cases, can be with suitable different from herein
Sequence performs shown or described step.
Fig. 4 realizes the flow chart of the method for Polarity Control for the embodiment of the present invention, as shown in figure 4, including：
Step 400, time control integrated circuit export two or more Polarity Controls letter to source drive integrated circult
Number (POL)；
It should be noted that polarity control signal of the embodiment of the present invention to the different numbers of output, the integrated electricity of time control
The realization principle on road is identical, will not be described here.
Step 401, source drive integrated circult carry out polarity output according to the POL of reception to the data wire for delimiting packet in advance
Control, so that the data wire of different grouping is not carrying out polarity inversion in the same time；
It should be noted that can be controlled at the time of polarity inversion according to polarity control signal, such as, with trailing edge
At the time of as polarity inversion, then two or more POL trailing edge both may be used in different time by different POL
Polarity inversion is not being carried out with the data wire for realizing different grouping in the same time.So as to avoid all data wires while extracting reversion electricity
The current peak that stream is caused.
Optionally, the embodiment of the present invention not in the same time carry out polarity inversion include：
Polarity inversion is not carried out in the same time in data frame length.
Optionally, the packet that the embodiment of the present invention delimited in advance includes：
Numbering is the data wire packet of odd number；
Numbering is the data wire packet of even number.
It should be noted that the embodiment of the present invention can also be grouped using other modes, it is for example, by numbering odd number
Data wire packet, the different demarcation of the source drive integrated circult connected according to data wire is two or more packets；
Similarly, the packet for numbering the data wire for being even number is subdivided into two or more packets again.Different packets is used
Different at the time of due to each packet progress polarity inversion after different POL, therefore, each grouped data line is carrying out polarity inversion
When be not in all data wires while extracting the current peak that reverse current is caused.
Optionally, embodiment of the present invention POL includes the first POL and the 2nd POL, and two are exported to source drive integrated circult
POL includes：
To the first POL of data wire packet output that numbering is odd number；To the data wire packet output second that numbering is even number
POL。
When including the first POL and two POL as alternative embodiment POL, the first POL and the 2nd POL can be set to control
Data wire carries out time interval of the time in the presence of half of frame length of polarity inversion.
Optionally, present invention method also includes：
When data wire carries out polarity inversion according to POL, reversion is provided from dc source to the data wire for carrying out polarity inversion
Electric current.
Fig. 5 is the circuit diagram for the control that the embodiment of the present invention is realized output polarity by two POL, as shown in figure 5, two
Individual POL is transmitted separately to source driver integrated circuit, the polarity output control of data wire is carried out, due to two POL control datas
Line carry out it is different at the time of polarity inversion, therefore different grouping data wire when output polarity finds to change, from DC circuit
There is interval in the time for providing reverse current to data wire, so as to avoid the shadow due to immediate current peak value to reference voltage
Ring；Fig. 6 is the signal schematic representation for the control that the embodiment of the present invention is realized output polarity by two POL, as shown in fig. 6, there is POL1
The control that polarity is exported is completed by different POL to a frame data with POL2.
Compared with correlation technique, technical scheme includes：Time control integrated circuit is defeated to source drive integrated circult
Go out two or more polarity control signals (POL)；Source drive integrated circult is according to the POL of reception to delimiting packet in advance
Data wire carries out polarity output control, so that the data wire of different grouping is not carrying out polarity inversion in the same time.The present invention is implemented
Example avoids data wire while carrying out polarity output causes immediate current peak value, and then avoids what is caused by immediate current peak value
Line afterimage phenomena.
Fig. 7 realizes the structured flowchart of the device of Polarity Control for the embodiment of the present invention, as shown in fig. 7, comprises：Time control
Integrated circuit, source drive integrated circult；Wherein,
Time control integrated circuit is configured to：Two or more polarity control signals are exported to source drive integrated circult
(POL)；POL1, POL2 etc. represent two or more POL in figure.
It should be noted that polarity control signal of the embodiment of the present invention to the different numbers of output, the integrated electricity of time control
The realization principle on road is identical, will not be described here.Here, time control integrated circuit to source drive integrated circult export two or
Two or more polarity control signal includes：In a data frame length, time control integrated circuit is defeated to source drive integrated circult
Go out two or more polarity control signals.
Source drive integrated circult is configured to：Polarity output is carried out to the data wire for delimiting packet in advance according to the POL of reception
Control, so that the data wire of different grouping is not carrying out polarity inversion in the same time.
It should be noted that can be controlled at the time of polarity inversion according to polarity control signal, such as, with trailing edge
At the time of as polarity inversion, then two or more POL trailing edge both may be used in different time by different POL
Polarity inversion is not being carried out with the data wire for realizing different grouping in the same time.So as to avoid all data wires while extracting reversion electricity
The current peak that stream is caused.
Optionally, embodiment of the present invention source drive integrated circult is arranged to：According to the polarity control signal of reception to pre-
The data wire for first delimiting packet carries out polarity output control, so that the data wire of different grouping is in the difference of data frame length
Carve and carry out polarity inversion.
Optionally, the packet that the embodiment of the present invention delimited in advance includes：
Numbering is the data wire packet of odd number；
Numbering is the data wire packet of even number.
It should be noted that the embodiment of the present invention can also be grouped using other modes, it is for example, by numbering odd number
Data wire packet, the different demarcation of the source drive integrated circult connected according to data wire is two or more packets；
Similarly, the packet for numbering the data wire for being even number is subdivided into two or more packets again.Different packets is used
Different at the time of due to each packet progress polarity inversion after different POL, therefore, each grouped data line is carrying out polarity inversion
When be not in all data wires while extracting the current peak that reverse current is caused.
Optionally, embodiment of the present invention POL includes the first POL and the 2nd POL, and time control integrated circuit is arranged to：
To the first POL of data wire packet output that numbering is odd number；To the data wire packet output second that numbering is even number
POL。
When including the first POL and two POL as alternative embodiment POL, the first POL and the 2nd POL can be set to control
Data wire carries out time interval of the time in the presence of half of frame length of polarity inversion.
Optionally, embodiment of the present invention device also includes：DC circuit；
DC current is configured to：When data wire carries out polarity inversion according to POL, provided to the data wire for carrying out polarity inversion
Reverse current.
Compared with correlation technique, technical scheme includes：Time control integrated circuit is defeated to source drive integrated circult
Go out two or more polarity control signals (POL)；Source drive integrated circult is according to the POL of reception to delimiting packet in advance
Data wire carries out polarity output control, so that the data wire of different grouping is not carrying out polarity inversion in the same time.The present invention is implemented
Example avoids data wire while carrying out polarity output causes immediate current peak value, and then avoids what is caused by immediate current peak value
Line afterimage phenomena.
One of ordinary skill in the art will appreciate that all or part of step in the above method can be instructed by program
Related hardware (such as processor) is completed, and described program can be stored in computer-readable recording medium, such as read-only storage,
Disk or CD etc..Alternatively, all or part of step of above-described embodiment can also use one or more integrated circuits
Realize.Correspondingly, each module/unit in above-described embodiment can be realized in the form of hardware, for example, pass through integrated electricity
Realize its corresponding function in road, it would however also be possible to employ the form of software function module is realized, for example, be stored in by computing device
Program/instruction in memory realizes its corresponding function.The present invention is not restricted to the hardware and software of any particular form
With reference to.
Although disclosed herein embodiment as above, described content be only readily appreciate the present invention and use
Embodiment, is not limited to the present invention.Technical staff in any art of the present invention, is taken off not departing from the present invention
On the premise of the spirit and scope of dew, any modification and change, but the present invention can be carried out in the form and details of implementation
Scope of patent protection, must be still defined by the scope of which is defined in the appended claims.
Claims (10)
1. a kind of method for realizing Polarity Control, including：
Time control integrated circuit exports two or more polarity control signals to source drive integrated circult；
Source drive integrated circult carries out polarity output to the data wire for delimiting packet in advance according to the polarity control signal of reception and controlled
System, so that the data wire of different grouping is not carrying out polarity inversion in the same time.
2. according to the method described in claim 1, it is characterised in that the packet delimited in advance includes：
Numbering is the data wire packet of odd number；
Numbering is the data wire packet of even number.
3. method according to claim 2, it is characterised in that the polarity control signal includes the first polarity control signal
With the second polarity control signal, it is described to source drive integrated circult export two polarity control signals include：
To data wire packet output first polarity control signal that numbering is odd number；To the number that numbering is even number
Second polarity control signal is exported according to line packet.
4. method according to claim 1 or 2, it is characterised in that methods described also includes：
When the data wire carries out polarity inversion according to the polarity control signal, dc source is to carrying out the polarity inversion
Data wire provides reverse current.
5. the method according to any one of claims 1 to 3, it is characterised in that described not carry out polarity inversion in the same time
Including：
Polarity inversion is not carried out in the same time in data frame length.
6. a kind of device for realizing Polarity Control, including：Time control integrated circuit, one or more sources drive integrated electricity
Road；Wherein,
Time control integrated circuit is configured to：Two or more polarity control signals are exported to source drive integrated circult；
Source drive integrated circult is respectively configured as：The data wire for delimiting packet in advance is carried out according to the polarity control signal of reception
Polarity output control, so that the data wire of different grouping is not carrying out polarity inversion in the same time.
7. device according to claim 6, it is characterised in that the packet delimited in advance includes：
Numbering is the data wire packet of odd number；
Numbering is the data wire packet of even number.
8. device according to claim 7, it is characterised in that the polarity control signal includes the first polarity control signal
With the second polarity control signal, the time control integrated circuit is arranged to：
To data wire packet output first polarity control signal that numbering is odd number；To the number that numbering is even number
Second polarity control signal is exported according to line packet.
9. the device according to claim 6 or 7, it is characterised in that described device also includes：DC circuit；
The DC current is configured to：When the data wire carries out polarity inversion according to the polarity control signal, to progress institute
The data wire for stating polarity inversion provides reverse current.
10. the device according to any one of claim 6~8, it is characterised in that the source drive integrated circult is configuration
For：Polarity output control is carried out to the data wire for delimiting packet in advance according to the polarity control signal of reception, so that different grouping
Data wire do not carry out polarity inversion in the same time in data frame length.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710380128.9A CN106960664A (en) | 2017-05-25 | 2017-05-25 | A kind of method and device for realizing Polarity Control |
| PCT/CN2018/083227 WO2018214670A1 (en) | 2017-05-25 | 2018-04-16 | Polarity control method and apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710380128.9A CN106960664A (en) | 2017-05-25 | 2017-05-25 | A kind of method and device for realizing Polarity Control |
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| CN106960664A true CN106960664A (en) | 2017-07-18 |
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| CN201710380128.9A Pending CN106960664A (en) | 2017-05-25 | 2017-05-25 | A kind of method and device for realizing Polarity Control |
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| WO (1) | WO2018214670A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018214670A1 (en) * | 2017-05-25 | 2018-11-29 | 京东方科技集团股份有限公司 | Polarity control method and apparatus |
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| CN101556769A (en) * | 2008-04-10 | 2009-10-14 | 奇美电子股份有限公司 | Device and method for controlling signal polarity switching of data wire of liquid crystal display panel |
| CN102930840A (en) * | 2012-08-09 | 2013-02-13 | 京东方科技集团股份有限公司 | Liquid crystal display driving circuit as well as driving method and LCD (Liquid Crystal Display) thereof |
| CN103208265A (en) * | 2013-04-15 | 2013-07-17 | 合肥京东方光电科技有限公司 | Liquid crystal display device and polarity reversal driving method and device of liquid crystal display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100304502B1 (en) * | 1998-03-27 | 2001-11-30 | 김영환 | Source driver circuit of liquid crystal display |
| US20080030452A1 (en) * | 2006-08-02 | 2008-02-07 | Chien-Ru Chen | Method and circuit for controlling the voltage polarity of pixel structure |
| CN102629453B (en) * | 2011-05-25 | 2014-04-30 | 京东方科技集团股份有限公司 | Method for driving liquid crystal display panel in polarity-reversal mode and apparatus thereof |
| CN102789771B (en) * | 2012-08-03 | 2016-06-15 | 京东方科技集团股份有限公司 | Polarity inversion signal conversion method, device and indicating meter |
| CN106960664A (en) * | 2017-05-25 | 2017-07-18 | 重庆京东方光电科技有限公司 | A kind of method and device for realizing Polarity Control |
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2017
- 2017-05-25 CN CN201710380128.9A patent/CN106960664A/en active Pending
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2018
- 2018-04-16 WO PCT/CN2018/083227 patent/WO2018214670A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101556769A (en) * | 2008-04-10 | 2009-10-14 | 奇美电子股份有限公司 | Device and method for controlling signal polarity switching of data wire of liquid crystal display panel |
| CN102930840A (en) * | 2012-08-09 | 2013-02-13 | 京东方科技集团股份有限公司 | Liquid crystal display driving circuit as well as driving method and LCD (Liquid Crystal Display) thereof |
| CN103208265A (en) * | 2013-04-15 | 2013-07-17 | 合肥京东方光电科技有限公司 | Liquid crystal display device and polarity reversal driving method and device of liquid crystal display device |
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| WO2018214670A1 (en) * | 2017-05-25 | 2018-11-29 | 京东方科技集团股份有限公司 | Polarity control method and apparatus |
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Application publication date: 20170718 |