CN109215594A - The driving device and driving method of liquid crystal display panel - Google Patents
The driving device and driving method of liquid crystal display panel Download PDFInfo
- Publication number
- CN109215594A CN109215594A CN201811172279.6A CN201811172279A CN109215594A CN 109215594 A CN109215594 A CN 109215594A CN 201811172279 A CN201811172279 A CN 201811172279A CN 109215594 A CN109215594 A CN 109215594A
- Authority
- CN
- China
- Prior art keywords
- pixel unit
- driving
- viewing area
- liquid crystal
- over
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Landscapes
- 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 (AREA)
Abstract
The present invention provides the driving method and driving device of a kind of liquid crystal display panel, liquid crystal display panel is divided at least one viewing area by it, viewing area includes at least one pixel unit, this method includes the over-driving look-up table for obtaining pixel unit, the over-driving look-up table for belonging to the pixel unit of different viewing areas is different, drives pixel unit work according to the over-driving look-up table of pixel unit；In this way when carrying out the driving of liquid crystal display panel, different overdrive voltages is provided for different pixel units, it can guarantee that these pixel units can carry out brightness change on time, realize in same video pictures region that pixel unit conversion rate is uniform, solving available liquid crystal display panel drive technique, there are all pixels units all to lead to the non-uniform technical problem of pixel unit conversion rate in same video pictures region using the same OD look-up table.
Description
Technical field
The present invention relates to the driving devices and driving side of field of liquid crystal display more particularly to a kind of liquid crystal display panel
Method.
Background technique
With the development of display technology, the planes such as liquid crystal display (Liquid Crystal Display, LCD) display dress
It sets because having many advantages, such as that high image quality, power saving, fuselage is thin and has a wide range of application, and is widely used in mobile phone, TV, a number
The various consumer electrical products such as word assistant, digital camera, laptop, desktop computer, become the master in display device
Stream.
Liquid crystal display device on existing market is largely backlight liquid crystal display comprising liquid crystal display panel and
Backlight module (backlight module).The working principle of liquid crystal display panel is put in the parallel glass substrate of two panels
Liquid crystal molecule is set, liquid crystal molecule is controlled whether by being powered and changes direction, the light refraction of backlight module is come out and generates picture
Face.
During liquid crystal display panel driving, since the reaction speed of liquid crystal is limited, it is difficult to be reached within the time of a frame
To expected deflection angle, it can make display brightness that expection be not achieved, dynamic menu shows to trail, to overcome drawbacks described above,
The prior art proposes a kind of overdrive technique (over driver, OD), so that liquid crystal reaches expected inclined in a relatively short period of time
Turn target, the principle of OD technology is: setting n as positive integer, when being switched to n frame from n-1 frame, if desired become grayscale from grayscale Gn-1
Gn, if only to the driving voltage of corresponding grayscale Gn, it is practical to be reached in n-th frame since the reaction speed of liquid crystal overturning is slow
Less than the grayscale Gn that we need, and OD technology is used, it is bigger with the voltage difference of the voltage of grayscale Gn-1 to provide correspondence in n-th frame
The driving voltage of grayscale Gn' reach actually required grayscale Gn in n-th frame, solve smear to accelerate liquid crystal reversal rate
Problem.
Further, in order to realize OD technology, the prior art is usually that one can be arranged in LCD driving mechanism
OD look-up table (Look-Up-Table, LUT), the abscissa of the LUT are the grayscale of former frame (Previous), and ordinate is to work as
The grayscale of previous frame (Current), the data searched by former frame grayscale and present frame grayscale are practical when overdriving
The grayscale of output, for example, former frame grayscale is 32, present frame grayscale is 96, is really the ash of output by tabling look-up, when overdriving
Rank is 152.
But the increase of size and resolution ratio with display panel, the pixel unit in display panel is also increasingly
It is more, and driving chip IC is often provided only on one end of display panel, this result in these pixel units and driving chip IC it
Between signal wire resistance it is different, when driving chip IC exports identical driving voltage, reach the practical drive of each pixel unit
Dynamic voltage is not identical, this results in the non-uniform problem of pixel unit conversion rate in same video pictures region.
That is, there are all pixels units all to be caused together using the same OD look-up table for available liquid crystal display panel drive technique
The non-uniform technical problem of pixel unit conversion rate in one video pictures region.
Summary of the invention
The present invention provides the driving device and driving method of a kind of liquid crystal display panel, to solve available liquid crystal display surface
All pixels unit existing for plate actuation techniques all leads to pixel list in same video pictures region using the same OD look-up table
First non-uniform technical problem of conversion rate.
To solve the above problems, technical solution provided by the invention is as follows:
The embodiment of the invention provides a kind of driving method of liquid crystal display panel, the liquid crystal display panel includes at least
One viewing area, the viewing area include at least one pixel unit, and the driving method includes the following steps:
Obtain the over-driving look-up table of the pixel unit；Belong to the lookup of overdriving of the pixel unit of different viewing areas
Table is different；
The pixel unit work is driven according to the over-driving look-up table of the pixel unit.
According to one preferred embodiment of the present invention, the step of over-driving look-up table for obtaining the pixel unit includes:
Obtain the ownership viewing area of the pixel unit；
Obtain the corresponding over-driving look-up table in the ownership viewing area；
Over-driving look-up table by the corresponding over-driving look-up table in the ownership viewing area, as the pixel unit.
According to one preferred embodiment of the present invention, described the step of obtaining the corresponding over-driving look-up table in the ownership viewing area
Include:
According to the viewing area mark of the ownership viewing area, from the mapping of preset viewing area mark and over-driving look-up table
Corresponding over-driving look-up table is found in relationship.
According to one preferred embodiment of the present invention, before the step of obtaining the over-driving look-up table of the pixel unit, also
Include:
The liquid crystal display panel is divided at least one viewing area；
Obtain the overdrive voltage of the viewing area；
According to the overdrive voltage of the viewing area, the over-driving look-up table of the viewing area is generated.
According to one preferred embodiment of the present invention, the step of overdrive voltage for obtaining the viewing area includes:
In the pixel unit of the viewing area, sampled pixel unit is selected；
Obtain the overdrive voltage of the sampled pixel unit；
According to the overdrive voltage of the sampled pixel unit, the overdrive voltage of the viewing area is generated.
According to one preferred embodiment of the present invention, the quantity of the sampled pixel unit is one, described according to the sample
The overdrive voltage of pixel unit, the step of generating the overdrive voltage of the viewing area include:
Overdrive voltage by the overdrive voltage of the sampled pixel unit, as the viewing area.
According to one preferred embodiment of the present invention, the quantity of the sampled pixel unit is described according to the sample greater than one
The overdrive voltage of this pixel unit, the step of generating the overdrive voltage of the viewing area include:
The overdrive voltage of each sample pixel unit is weighted, the overdrive voltage of the viewing area is obtained.
The embodiment of the invention provides a kind of driving device of liquid crystal display panel, the liquid crystal display panel includes at least
One viewing area, the viewing area include at least one pixel unit, and the driving device includes acquiring unit interconnected
And driving unit, in which:
The acquiring unit is used to obtain the over-driving look-up table of the pixel unit；Belong to the pixel of different viewing areas
The over-driving look-up table of unit is different；
The driving unit is used to drive the pixel unit to work according to the over-driving look-up table of the pixel unit.
According to one preferred embodiment of the present invention, the acquiring unit is specifically used for: the ownership for obtaining the pixel unit is aobvious
Show area；Obtain the corresponding over-driving look-up table in the ownership viewing area；By the corresponding over-driving look-up table in the ownership viewing area,
Over-driving look-up table as the pixel unit.
It according to one preferred embodiment of the present invention, further include division unit, test cell and processing unit, in which:
The division unit is used to the liquid crystal display panel being divided at least one viewing area；
The test cell is used to obtain the overdrive voltage of the viewing area；
The processing unit is used for the overdrive voltage according to the viewing area, generates the lookup of overdriving of the viewing area
Table.
The invention has the benefit that the present invention provides the driving method and driving dress of a kind of new liquid crystal display panel
It sets, the liquid crystal display panel is divided at least one viewing area, the viewing area includes at least one pixel unit, should
Method includes the over-driving look-up table for obtaining the pixel unit, belongs to the lookup of overdriving of the pixel unit of different viewing areas
Table is different, drives the pixel unit to work according to the over-driving look-up table of the pixel unit；Carrying out liquid crystal display in this way
When the driving of panel, different overdrive voltages is provided for different pixel units, it is ensured that these pixel units can be with
It is punctual to carry out brightness change, it realizes in same video pictures region that pixel unit conversion rate is uniform, solves available liquid crystal
There are all pixels units all to lead to picture in same video pictures region using the same OD look-up table for display panel drive technique
The plain non-uniform technical problem of unit conversion rate.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of embodiment or technical solution in the prior art
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only some of invention
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the first schematic diagram of driving method provided by the invention；
Fig. 2 is second of schematic diagram of driving method provided by the invention；
Fig. 3 is the display Division schematic diagram of liquid crystal display panel provided by the invention；
Fig. 4 is the schematic diagram of over-driving look-up table provided by the invention；
Fig. 5 is the schematic diagram of driving device provided by the invention.
Specific embodiment
The explanation of following embodiment is referred to the additional illustration, the particular implementation that can be used to implement to illustrate the present invention
Example.The direction term that the present invention is previously mentioned, such as [on], [under], [preceding], [rear], [left side], [right side], [interior], [outer], [side]
Deng being only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand the present invention, rather than to
The limitation present invention.The similar unit of structure is with being given the same reference numerals in the figure.
For available liquid crystal display panel drive technique, there are all pixels units all to be caused using the same OD look-up table
The non-uniform technical problem of pixel unit conversion rate, the present invention are able to solve the defect in same video pictures region.
As shown in figure 3, the liquid crystal display panel includes at least one viewing area, the viewing area includes at least one picture
Plain unit, specifically, carrying out being horizontally divided into the area M to panel, M is more than or equal to 1, and the size of M subregion can be unequal, by setting
Horizontal coordinate point is set subregion is arranged, panel is subjected to the area vertical partitioning N, N is more than or equal to 1, and the size of N subregion can not phase
Deng subregion is arranged by setting vertical coordinate point.
As shown in Figure 1, driving method provided in an embodiment of the present invention includes the following steps:
S11, the over-driving look-up table for obtaining the pixel unit；Belong to overdriving for the pixel unit of different viewing areas
Look-up table is different；
S12, the pixel unit is driven to work according to the over-driving look-up table of the pixel unit.
Optionally, according to the over-driving look-up table of the pixel unit drive the pixel unit work the step of include with
Under:
When the display picture of the pixel unit is by the first brightness screen switching to the second brightness picture, look into table 4
Find corresponding overdrive voltage value；
One first driving voltage is inputted to the pixel electrode of the pixel unit in the first frame of the second brightness picture
V1, and one first common voltage Vcom1, and the first driving voltage V1 and institute are inputted to the public electrode of the pixel unit
State the opposite in phase of the first common voltage Vcom1；
One second driving voltage is inputted to the pixel electrode of the pixel unit in the second frame of the second brightness picture
V2 inputs one second common voltage Vcom2 to the public electrode of the pixel unit, wherein V2=-V1-Vcom1, and Vcom2
=-Vcom1.
Wherein, the voltage absolute value of the difference of the first driving voltage V1 and the first common voltage Vcom1 is by institute
Electricity of overdriving needed for the first brightness screen switching being stated to the second brightness picture and being completed in a frame picture response time T
Pressure value, i.e., the described pixel unit is by the first brightness screen switching to the second brightness picture and when a frame picture responds
Between complete in T needed for driving voltage value.It is required when normally being shown due to it greater than the second brightness of pixel unit picture
Driving voltage value, therefore referred to as overdrive voltage value.The electricity of the second driving voltage V2 and the second common voltage Vcom2
Pressure absolute value of the difference is driving voltage value required when the second brightness picture is normally shown.
Optionally, described inputted in the first frame of the second brightness picture to the pixel electrode of the pixel unit
One driving voltage V1 is positive value, and first common voltage is negative value, in another embodiment of the present invention, described second
The first driving voltage V1 that the first frame of brightness picture is inputted to the pixel electrode of the pixel unit is negative value, described the
One common voltage is positive value, the present invention to this and without limitation, as long as guarantee first driving voltage and described first public
Voltage-phase is opposite.
Optionally, over-driving look-up table as shown in figure 4, the LUT abscissa be former frame (Previous) grayscale, indulge sit
It is designated as present frame (Current) grayscale, the data searched by former frame grayscale and present frame grayscale are when overdriving
The grayscale of reality output, for example, former frame grayscale is 32, present frame grayscale is 128, really defeated when overdriving by tabling look-up
Grayscale out is 152.
Optionally, the step of over-driving look-up table for obtaining the pixel unit includes:
Obtain the ownership viewing area of the pixel unit；
Obtain the corresponding over-driving look-up table in the ownership viewing area；
Over-driving look-up table by the corresponding over-driving look-up table in the ownership viewing area, as the pixel unit.
Optionally, described the step of obtaining the corresponding over-driving look-up table in the ownership viewing area, includes:
According to the viewing area mark of the ownership viewing area, from the mapping of preset viewing area mark and over-driving look-up table
Corresponding over-driving look-up table is found in relationship.
As shown in Fig. 2, driving method provided in an embodiment of the present invention includes the following steps:
S21, the liquid crystal display panel is divided at least one viewing area；
S22, the overdrive voltage for obtaining the viewing area；
S23, according to the overdrive voltage of the viewing area, generate the over-driving look-up table of the viewing area.
Optionally, the step of overdrive voltage for obtaining the viewing area includes:
In the pixel unit of the viewing area, sampled pixel unit is selected；
Obtain the overdrive voltage of the sampled pixel unit；
According to the overdrive voltage of the sampled pixel unit, the overdrive voltage of the viewing area is generated.
Optionally, the quantity of the sampled pixel unit is one, the overdriving according to the sampled pixel unit
Voltage, the step of generating the overdrive voltage of the viewing area include:
Overdrive voltage by the overdrive voltage of the sampled pixel unit, as the viewing area.
The quantity of the optional sampled pixel unit is greater than one, the overdriving according to the sampled pixel unit
Voltage, the step of generating the overdrive voltage of the viewing area include:
The overdrive voltage of each sample pixel unit is weighted to sum or average etc. and is calculated, is obtained described aobvious
Show the overdrive voltage in area.
Specifically, as shown in figure 3, panel is carried out being horizontally divided into the area M first, M is more than or equal to 1, and the size of M subregion can
With unequal, subregion is arranged by setting horizontal coordinate point；Then by panel carry out the area vertical partitioning N, N be more than or equal to 1, and
The size of N subregion can be unequal, and subregion is arranged by setting vertical coordinate point；Finally measure overdriving for corresponding viewing area
Data are inserted corresponding storage region.For example, horizontal position X1 can be set when horizontal subregion is arranged to 5,
When vertical subregion is arranged to 3 vertical position Y1, Y2 can be set, as shown in Figure 3, so that it may by panel in X2, X3, X4
It is divided into 15 viewing areas.
The viewing area of viewing area is identified for uniquely determining viewing area, can by the coordinate representation of viewing area, such as (0,0),
(x1,0) etc..
Optionally, the step of obtaining the overdrive voltage of the sampled pixel unit includes: according to look-up table shown in Fig. 4
The luminance difference measurement corresponding with the intersection point of ordinate of interior abscissa, completes minimum required for brightness change in a frame time
Voltage.For example, the video for being 40Hz for frequency, a frame time is 0.025 second, and brightness becomes grayscale 128 from grayscale 32, required
The minimum driving voltage wanted is grayscale 152, then corresponding over-drive unit is grayscale 152.
Optionally, originally can also can all be tested for the videos of all frequency formats, such as 40Hz, 60Hz and
144Hz etc. there is multiple over-driving look-up tables for a pixel unit in this way.So at this point, the embodiment of the present invention provides
Method the following steps are included:
Step 1 receives video source signal, and the refreshing frequency of the video source signal is determined according to the video source signal
Rate；
Step 2, the over-driving look-up table that pixel unit is obtained according to the refreshing frequency, the corresponding mistake of different refreshing frequencys
Drive look-up table different；The over-driving look-up table for belonging to the pixel unit of different viewing areas is different；
Step 3 drives liquid crystal display panel work according to the over-driving look-up table of the acquisition.
Wherein, in step 1, the tool of the refreshing frequency process of the video source signal is determined according to the video source signal
Body includes:
Decompression obtains pixel clock signal from the video source signal, and detects the frequency of the pixel clock signal；
It is calculated according to the frequency of the pixel clock signal and preset refreshing frequency calculation formula presently described
The refreshing frequency of liquid crystal display panel；
Wherein, preset refreshing frequency calculation formula are as follows:
Refresh=PCLKRefresh/ (Vtotal*Htotal)；
Wherein, Refresh is the refreshing frequency of liquid crystal display panel, and PCLKRefresh is the frequency of pixel clock signal,
Vtotal is the total data of preset horizontal direction scanning, and Htotal is the row data of preset vertical scan direction.
Specifically, the process for detecting the frequency of the pixel clock signal specifically includes:
Generate at least two successively phase shift and the identical sampled clock signals of frequency；
The high level of the pixel clock signal is acquired by the sampled clock signal, and is counted and collected the pixel
The item number of the sampled clock signal of the high level of clock signal；
When calculating pixel according to the item number of the sampled clock signal of the high level for collecting the pixel clock signal
The high level duration of clock signal；
According to the frequency of the high level duration calculation pixel clock signal of the pixel clock signal, the pixel clock letter
Number frequency be equal to 1/ (2T), T be pixel clock signal high level duration；
Wherein, the period of the sampled clock signal is greater than twice of the period of the pixel clock signal；The pixel
The calculation method of the high level duration of clock signal are as follows: the time of T=tl*n, tl between two adjacent sampled clock signals
Interval, n is the item number for collecting the sampled clock signal of high level of the pixel clock signal.
Optionally, in order to further promoted detecting pixel clock signal PCLK frequency accuracy, can also lead to
When crossing the sampled clock signal and carry out multiple repairing weld to the high level of the pixel clock signal, and obtaining the pixel accordingly
Multiple frequencies of clock signal, then the average value of multiple frequencies of the pixel clock signal is calculated, with the flat of the multiple frequency
Frequency of the mean value as the pixel clock signal for calculating refreshing frequency.
As shown in figure 5, the driving device of liquid crystal display panel provided in an embodiment of the present invention includes division interconnected
Unit 51, test cell 52, processing unit 53, acquiring unit 54 and driving unit 55, in which:
The division unit 51 is used to the liquid crystal display panel being divided at least one viewing area；
The test cell 52 is used to obtain the overdrive voltage of the viewing area；
The processing unit 53 is used for the overdrive voltage according to the viewing area, generates overdriving for the viewing area and looks into
Look for table；
The acquiring unit 54 is used to obtain the over-driving look-up table of the pixel unit；Belong to the picture of different viewing areas
The over-driving look-up table of plain unit is different；
The driving unit 55 is used to drive the pixel unit to work according to the over-driving look-up table of the pixel unit.
Optionally, the acquiring unit 54 is specifically used for: obtaining the ownership viewing area of the pixel unit；Return described in acquisition
Belong to the corresponding over-driving look-up table in viewing area；By the corresponding over-driving look-up table in the ownership viewing area, as the pixel list
The over-driving look-up table of member.
According to above-described embodiment:
The present invention provides the driving method and driving device of a kind of new liquid crystal display panel, by the liquid crystal display
Panel is divided at least one viewing area, and the viewing area includes at least one pixel unit, and this method includes obtaining the picture
The over-driving look-up table of plain unit, the over-driving look-up table for belonging to the pixel unit of different viewing areas is different, according to the picture
The over-driving look-up table of plain unit drives the pixel unit work；In this way when carrying out the driving of liquid crystal display panel, for
Different pixel units provides different overdrive voltages, it is ensured that and these pixel units can carry out brightness change on time,
It realizes in same video pictures region that pixel unit conversion rate is uniform, solves available liquid crystal display panel drive technique and deposit
All cause pixel unit conversion rate in same video pictures region uneven using the same OD look-up table in all pixels unit
Even technical problem.
In conclusion although the present invention has been disclosed above in the preferred embodiment, but above preferred embodiment is not to limit
The system present invention, those skilled in the art can make various changes and profit without departing from the spirit and scope of the present invention
Decorations, therefore protection scope of the present invention subjects to the scope of the claims.
Claims (10)
1. a kind of driving method of liquid crystal display panel, which is characterized in that the liquid crystal display panel includes at least one display
Area, the viewing area include at least one pixel unit, and the driving method includes the following steps:
Obtain the over-driving look-up table of the pixel unit；Belong to the over-driving look-up table of the pixel unit of different viewing areas not
Together；
The pixel unit work is driven according to the over-driving look-up table of the pixel unit.
2. the driving method of liquid crystal display panel according to claim 1, which is characterized in that described to obtain the pixel list
Member over-driving look-up table the step of include:
Obtain the ownership viewing area of the pixel unit；
Obtain the corresponding over-driving look-up table in the ownership viewing area；
Over-driving look-up table by the corresponding over-driving look-up table in the ownership viewing area, as the pixel unit.
3. the driving method of liquid crystal display panel according to claim 2, which is characterized in that the acquisition ownership is aobvious
The step of showing the corresponding over-driving look-up table in area include:
According to the viewing area mark of the ownership viewing area, from the mapping relations of preset viewing area mark and over-driving look-up table
In find corresponding over-driving look-up table.
4. the driving method of liquid crystal display panel according to any one of claims 1 to 3, which is characterized in that obtaining institute
Before the step of stating the over-driving look-up table of pixel unit, further includes:
The liquid crystal display panel is divided at least one viewing area；
Obtain the overdrive voltage of the viewing area；
According to the overdrive voltage of the viewing area, the over-driving look-up table of the viewing area is generated.
5. the driving method of liquid crystal display panel according to claim 4, which is characterized in that described to obtain the viewing area
Overdrive voltage the step of include:
In the pixel unit of the viewing area, sampled pixel unit is selected；
Obtain the overdrive voltage of the sampled pixel unit；
According to the overdrive voltage of the sampled pixel unit, the overdrive voltage of the viewing area is generated.
6. the driving method of liquid crystal display panel according to claim 5, which is characterized in that the sampled pixel unit
Quantity is one, and the overdrive voltage according to the sampled pixel unit generates the overdrive voltage of the viewing area
Step includes:
Overdrive voltage by the overdrive voltage of the sampled pixel unit, as the viewing area.
7. the driving method of liquid crystal display panel according to claim 5, which is characterized in that the sampled pixel unit
Quantity is greater than one, and the overdrive voltage according to the sampled pixel unit generates the overdrive voltage of the viewing area
The step of include:
The overdrive voltage of each sample pixel unit is weighted, the overdrive voltage of the viewing area is obtained.
8. a kind of driving device of liquid crystal display panel, which is characterized in that the liquid crystal display panel includes at least one display
Area, the viewing area include at least one pixel unit, and the driving device includes acquiring unit interconnected and driving
Unit, in which:
The acquiring unit is used to obtain the over-driving look-up table of the pixel unit；Belong to the pixel unit of different viewing areas
Over-driving look-up table it is different；
The driving unit is used to drive the pixel unit to work according to the over-driving look-up table of the pixel unit.
9. the driving device of liquid crystal display panel according to claim 8, which is characterized in that the acquiring unit is specifically used
In: obtain the ownership viewing area of the pixel unit；Obtain the corresponding over-driving look-up table in the ownership viewing area；Return described
Belong to the corresponding over-driving look-up table in viewing area, the over-driving look-up table as the pixel unit.
10. the driving device of liquid crystal display panel according to claim 8 or claim 9, which is characterized in that further include dividing list
Member, test cell and processing unit, in which:
The division unit is used to the liquid crystal display panel being divided at least one viewing area；
The test cell is used to obtain the overdrive voltage of the viewing area；
The processing unit is used for the overdrive voltage according to the viewing area, generates the over-driving look-up table of the viewing area.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811172279.6A CN109215594A (en) | 2018-10-09 | 2018-10-09 | The driving device and driving method of liquid crystal display panel |
| PCT/CN2018/116359 WO2020073433A1 (en) | 2018-10-09 | 2018-11-20 | Driving device and method for liquid crystal display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811172279.6A CN109215594A (en) | 2018-10-09 | 2018-10-09 | The driving device and driving method of liquid crystal display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109215594A true CN109215594A (en) | 2019-01-15 |
Family
ID=64983188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811172279.6A Pending CN109215594A (en) | 2018-10-09 | 2018-10-09 | The driving device and driving method of liquid crystal display panel |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109215594A (en) |
| WO (1) | WO2020073433A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616083A (en) * | 2019-01-29 | 2019-04-12 | 惠科股份有限公司 | A kind of driving method, drive module and display device |
| CN110428787A (en) * | 2019-07-23 | 2019-11-08 | 深圳市华星光电技术有限公司 | Over-driving look-up table establishes system and method for building up |
| CN110706665A (en) * | 2019-09-12 | 2020-01-17 | 深圳市华星光电技术有限公司 | Driving method of liquid crystal panel |
| CN111540329A (en) * | 2020-05-25 | 2020-08-14 | Tcl华星光电技术有限公司 | Time schedule controller, control method thereof and display device |
| CN111554246A (en) * | 2020-05-22 | 2020-08-18 | Tcl华星光电技术有限公司 | Liquid crystal display panel overdrive method and device, display panel and display device |
| WO2020199111A1 (en) * | 2019-04-01 | 2020-10-08 | Shenzhen Yunyinggu Technology Co., Ltd. | Method and system for determining overdrive pixel values in display panel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200921606A (en) * | 2007-11-02 | 2009-05-16 | Qisda Corp | Compensation device, method, and electronic system utilizing the same |
| CN101661716A (en) * | 2008-08-25 | 2010-03-03 | 中华映管股份有限公司 | Method and device for driving display |
| CN102693702A (en) * | 2011-03-21 | 2012-09-26 | 宏碁股份有限公司 | Liquid crystal display apparatus and driving method thereof |
| CN104882112A (en) * | 2015-06-25 | 2015-09-02 | 上海天马微电子有限公司 | Liquid crystal display panel and driving method thereof |
| CN107221296A (en) * | 2017-04-06 | 2017-09-29 | 友达光电股份有限公司 | Over-driving method, time schedule controller and display |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5369517B2 (en) * | 2008-06-30 | 2013-12-18 | カシオ計算機株式会社 | Display device and display method |
| US9053674B2 (en) * | 2012-01-02 | 2015-06-09 | Mediatek Inc. | Overdrive apparatus for dynamically loading required overdrive look-up tables into table storage devices and related overdrive method |
| CN103531158A (en) * | 2012-07-03 | 2014-01-22 | 联咏科技股份有限公司 | Overdrive device |
| CN105374336B (en) * | 2015-12-15 | 2019-02-26 | 深圳市华星光电技术有限公司 | Liquid crystal display and grid signal compensation method |
| CN107799086A (en) * | 2017-11-22 | 2018-03-13 | 深圳市华星光电技术有限公司 | The over-driving method and device of liquid crystal display panel |
-
2018
- 2018-10-09 CN CN201811172279.6A patent/CN109215594A/en active Pending
- 2018-11-20 WO PCT/CN2018/116359 patent/WO2020073433A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200921606A (en) * | 2007-11-02 | 2009-05-16 | Qisda Corp | Compensation device, method, and electronic system utilizing the same |
| CN101661716A (en) * | 2008-08-25 | 2010-03-03 | 中华映管股份有限公司 | Method and device for driving display |
| CN102693702A (en) * | 2011-03-21 | 2012-09-26 | 宏碁股份有限公司 | Liquid crystal display apparatus and driving method thereof |
| CN104882112A (en) * | 2015-06-25 | 2015-09-02 | 上海天马微电子有限公司 | Liquid crystal display panel and driving method thereof |
| CN107221296A (en) * | 2017-04-06 | 2017-09-29 | 友达光电股份有限公司 | Over-driving method, time schedule controller and display |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616083A (en) * | 2019-01-29 | 2019-04-12 | 惠科股份有限公司 | A kind of driving method, drive module and display device |
| WO2020156006A1 (en) * | 2019-01-29 | 2020-08-06 | 惠科股份有限公司 | Drive method, drive circuit, and display device |
| US11295656B2 (en) | 2019-01-29 | 2022-04-05 | HKC Corporation Limited | Driving method, driving circuit, and display device |
| WO2020199111A1 (en) * | 2019-04-01 | 2020-10-08 | Shenzhen Yunyinggu Technology Co., Ltd. | Method and system for determining overdrive pixel values in display panel |
| CN110428787A (en) * | 2019-07-23 | 2019-11-08 | 深圳市华星光电技术有限公司 | Over-driving look-up table establishes system and method for building up |
| CN110706665A (en) * | 2019-09-12 | 2020-01-17 | 深圳市华星光电技术有限公司 | Driving method of liquid crystal panel |
| CN110706665B (en) * | 2019-09-12 | 2020-11-03 | 深圳市华星光电技术有限公司 | Driving method of liquid crystal panel |
| CN111554246A (en) * | 2020-05-22 | 2020-08-18 | Tcl华星光电技术有限公司 | Liquid crystal display panel overdrive method and device, display panel and display device |
| CN111540329A (en) * | 2020-05-25 | 2020-08-14 | Tcl华星光电技术有限公司 | Time schedule controller, control method thereof and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020073433A1 (en) | 2020-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109215594A (en) | The driving device and driving method of liquid crystal display panel | |
| CN101312026B (en) | Liquid crystal display device and its drive method | |
| CN100543568C (en) | Be used to drive the Apparatus and method for of liquid crystal display device | |
| CN100517455C (en) | Apparatus and method for driving liquid crystal display device | |
| TWI412008B (en) | Liquid crystal display and driving method thereof | |
| CN1877405B (en) | Liquid crystal displaying apparatus using data line driving circuit | |
| US20050162416A1 (en) | Method of display by sub-frame driving | |
| KR101330459B1 (en) | Liquid Crystal Display | |
| US20050146495A1 (en) | LCD overdrive table triangular interpolation | |
| CN107799086A (en) | The over-driving method and device of liquid crystal display panel | |
| CN108039155B (en) | Method for obtaining overdrive lookup table of liquid crystal display | |
| CN101458909B (en) | Device and method for controlling driver of LCD | |
| KR20020065854A (en) | Image display system and image information transmission method | |
| JPH04502520A (en) | Flicker-free LCD display driver device | |
| JP2009301001A (en) | Liquid crystal display and driving method thereof | |
| WO2013121720A1 (en) | Liquid crystal display device | |
| KR20130062649A (en) | Liquid crystal display and driving method thereof | |
| US20140043376A1 (en) | Method for inserting frames in a liquid crystal display apparatus and the liquid crystal display apparatus | |
| CN108877714A (en) | Liquid crystal display and its over-driving method, memory | |
| US8373632B2 (en) | Apparatus and method for driving a liquid crystal display device | |
| CN110288958B (en) | Display panel driving method, driving device and display device | |
| KR101399237B1 (en) | Liquid crystal display device and method driving of the same | |
| WO2005096262A1 (en) | Overdriving a pixel of a matrix display | |
| CN111292692B (en) | Pixel matrix driving device, pixel matrix driving method and display thereof | |
| CN100359557C (en) | Liquid crystal driving system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190115 |