CN106324875A - Method and device for determining overdrive voltage as well as display device - Google Patents
Method and device for determining overdrive voltage as well as display device Download PDFInfo
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- CN106324875A CN106324875A CN201610926111.4A CN201610926111A CN106324875A CN 106324875 A CN106324875 A CN 106324875A CN 201610926111 A CN201610926111 A CN 201610926111A CN 106324875 A CN106324875 A CN 106324875A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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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
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
Abstract
The invention provides a method and a device for determining overdrive voltage as well as a display device, relates to the technical field of liquid crystal display and is used for reducing the workload during determination of overdrive gray scale brightness. The method for determining the overdrive voltage comprises steps as follows: acquiring gray scale brightness of a target frame image; acquiring the setting time of overdrive of to-be-processed frame images and display time of each frame of one image; determining the overdrive gray scale brightness of the to-be-processed frame images according to the gray scale brightness of the target frame image, the setting time of overdrive and the display time; determining the corresponding overdrive voltage according to the overdrive gray scale brightness. The method and the device for determining the overdrive voltage as well as the display device are mainly applied to the technical field of liquid crystal display.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly relate to a kind of determine the method for overdrive voltage, device and aobvious
Show equipment.
Background technology
Along with the development of Display Technique, liquid crystal display due to have little, the higher resolution of volume, frivolous profile with
And the advantage such as relatively low energy consumption and radiation, the main flow device being increasingly becoming in display device.From the operation principle of liquid crystal display
On say, liquid crystal from by applying power and reach need the anglec of rotation, need bigger response time.
In prior art, general LCD-Overdrive LUT Method of passing through obtains overdrive voltage.In this approach,
First determine take-off potential VPF and target potential VCF, then overdrive voltage VOD is set, and observes the response curve measured
Whether it is optimal curve.If it is not, then need to regulate overdrive voltage VOD again, until find optimal overdrive voltage
Till.Wherein, this optimal overdrive voltage and previous frame image are presented grey decision-making and current frame image are to be presented
Grey decision-making is correlated with.
But, during realizing the present invention, inventor finds, as a example by 0 to 255 GTGs, and a total of 256 × 256
Gray scale combines, if will the most constantly adjusting between each two gray scale and determining overdrive voltage, then will
Workload can be caused big, be not suitable for using in practice.
Summary of the invention
In view of this, the present invention provides a kind of method and device determining overdrive voltage, determines overdrive in order to reduce
Workload during gray-scale intensity.
For solving above-mentioned technical problem, the present invention provides a kind of method determining overdrive voltage, including:
Obtain the gray-scale intensity of target frame image；
Obtain time of setting up and the display time of every two field picture that pending two field picture is overdrived；
Utilize described target frame image gray-scale intensity, described in time of setting up of overdriving, described display time determine institute
State the gray-scale intensity of overdriving of pending two field picture；
The overdrive voltage of correspondence is determined according to described gray-scale intensity of overdriving.
Wherein, utilize according to the following equation described target frame image gray-scale intensity, described in overdrive time of setting up, institute
Stating the display time determines the gray-scale intensity of overdriving of described pending two field picture:
a1×GLod≤GLod'≤a2×GLod
Wherein, GLod' represents that gray-scale intensity of overdriving, GLod represent that benchmark is overdrived gray-scale intensity, and Tframe represents every
The display time of two field picture, GL represents the gray-scale intensity of described target frame image, TRODThat overdrives described in expression sets up the time,
A1 represents the first coefficient, and a2 represents the second coefficient, a1 >=0, a1≤a2.
Wherein, described first coefficient is 0.9, and described second coefficient is 1.1.
Wherein, described method also includes:
The gray-scale intensity of described target frame image is stored in the first intensity gray scale table；
Described gray-scale intensity of overdriving is stored in the second intensity gray scale table；
Wherein said first intensity gray scale table and described second intensity gray scale table include 4 (OK) × 64 (arranging) individual addresses, and
In described first intensity gray scale table, each address and described second intensity gray scale table corresponding address have one-to-one relationship.
Wherein, described method also includes:
Reception overdrive gray-scale intensity obtain request, described overdrive gray-scale intensity obtain request include described target
First gray-scale intensity of two field picture；
The first gray-scale intensity according to described target frame image searches described first intensity gray scale table, obtains described target frame
First gray-scale intensity of image the first storage address in described first intensity gray scale table；
According to described first storage address, obtain and the in described first second intensity gray scale table corresponding to storage address
Two storage addresses, according to the second intensity gray scale table described in described second storage address search, obtain first and overdrive gray-scale intensity.
Second aspect, the present invention provides a kind of device determining overdrive voltage, including:
First acquisition module, for obtaining the gray-scale intensity of target frame image；
Second acquisition module, during for obtaining the display of time of setting up that pending two field picture overdrives and every two field picture
Between；
Overdrive gray-scale intensity acquisition module, for utilize described target frame image gray-scale intensity, described in overdrive
Set up the time, the described display time determines the gray-scale intensity of overdriving of described pending two field picture；
Overdrive voltage acquisition module, determines the overdrive voltage of correspondence for gray-scale intensity of overdriving described in basis.
Wherein, gray-scale intensity acquisition module of overdriving described in determines that the mistake of described pending two field picture is driven according to the following equation
Dynamic gray-scale intensity:
a1×GLod≤GLod'≤a2×GLod
Wherein, GLod' represents that gray-scale intensity of overdriving, GLod represent that benchmark is overdrived gray-scale intensity, and Tframe represents every
The display time of two field picture, GL represents the gray-scale intensity of described target frame image, TRODThat overdrives described in expression sets up the time,
A1 represents the first coefficient, and a2 represents the second coefficient, a1≤a2.
Wherein, described first coefficient is 0.9, and described second coefficient is 1.1.
Wherein, described device also includes:
First memory module, for being stored in the gray-scale intensity of described target frame image in the first intensity gray scale table；
Second memory module, for being stored in described gray-scale intensity of overdriving in the second intensity gray scale table；
Wherein said first intensity gray scale table and described second intensity gray scale table are the table of 4 row × 64 row, and described first
In intensity gray scale table, each address and described second intensity gray scale table corresponding address have one-to-one relationship.
Wherein, described device also includes:
Request receiver module, for reception overdrive gray-scale intensity obtain request, described overdrive gray-scale intensity obtain
Request includes the first gray-scale intensity of described target frame image；
Search module, search described first intensity gray scale table for the first gray-scale intensity according to described target frame image,
Obtain the first gray-scale intensity of described target frame image the first storage address in described first intensity gray scale table；According to described
First storage address, obtains the second storage address in the second intensity gray scale table corresponding with described first storage address, and root
According to the second intensity gray scale table described in described second storage address search, obtain first and overdrive gray-scale intensity；
Sending module, is used for sending described first and overdrives gray-scale intensity.
The third aspect, the present invention provides a kind of display device, including weighing the aforesaid device determining overdrive voltage.
Having the beneficial effect that of the technique scheme of the present invention:
In embodiments of the present invention, can overdrive according to the gray-scale intensity of target frame image obtained, pending two field picture
Time of setting up and display time of every two field picture determine the gray-scale intensity of overdriving of described pending two field picture, and then determined
Gray-scale intensity is driven to determine the overdrive voltage of correspondence.Therefore, the scheme of the embodiment of the present invention is utilized, it is not necessary to as in prior art
Constantly adjust between different gray scales and determine overdrive voltage like that, but can be directly according to the target frame obtained
Time of setting up and the display time of every two field picture that the gray-scale intensity of image, pending two field picture are overdrived determine described pending
The gray-scale intensity of overdriving of two field picture, and then determine that gray-scale intensity of overdriving determines the overdrive voltage of correspondence, thus reduce
Determine the workload of overdrive voltage.
Accompanying drawing explanation
Fig. 1 is display brightness model；
Fig. 2 is the flow chart of the method for the determination overdrive voltage of the embodiment of the present invention one；
Fig. 3 was to drive display brightness model；
Fig. 4 is the flow chart of the method for the determination overdrive voltage of the embodiment of the present invention two；
Fig. 5 is data transfer model in the embodiment of the present invention；
Fig. 6 is one of schematic diagram of device of determination overdrive voltage of the embodiment of the present invention three；
Fig. 7 is the two of the schematic diagram of the device of the determination overdrive voltage of the embodiment of the present invention three；
Fig. 8 is the three of the schematic diagram of the device of the determination overdrive voltage of the embodiment of the present invention three.
Detailed description of the invention
Below in conjunction with drawings and Examples, the detailed description of the invention of the present invention is described in further detail.Following reality
Execute example for the present invention is described, but be not limited to the scope of the present invention.
The most typically use overdrive technique to improve the response speed of liquid crystal, thus improve the response of liquid crystal
Time.
With TFT-LCD (Thin film transistor-liquid crystal display, tft liquid crystal
Display) as a example by, when the gate source voltage of TFT is more than drain voltage, and the source of TFT, drain electrode conducting, the voltage being applied to source electrode is quick
It is charged to store on electric capacity CS (CS makes the charging interval shorten) and CLC.When the gate source voltage of TFT is less than the blanking voltage of TFT,
Then its source, drain electrode cut-off, the voltage being applied to source electrode cannot be charged to store on electric capacity CS and CLC.C=on liquid crystal molecule electric capacity
Q/V, when electricity Q keeps constant, is affected by the external environment, and the electric capacity of liquid crystal capacitance CLC rises, thus can cause the electricity of correspondence
Pressure V declines.Therefore the gray scale response curve of liquid crystal is difficult to reach desired value in a frame time, and overdrive technique is by increasing
Driving voltage, can make electricity Q increase, and the response time of such liquid crystal shortens.Therefore the target of overdrive technique is exactly: to appointing
Saltus step between meaning GTG, it is ensured that in a frame time, the brightness of liquid crystal output reaches the stationary value of brightness needed for target gray.
In actual applications, human eye experiences the height (i.e. luminous energy) of brightness and luminous flux, lighting time exist such as ShiShimonoseki
System:
Height (luminous energy)=luminous flux (lumen) × lighting time=Lm × T=cd/m that human eye impression is bright2× area ×
T。
Under display module scheme, Lm and light-emitting area all it has been determined that in the case of, the luminous energy that human eye is experienced is
Determined by T, i.e. lighting time, cd/m2(candela/square metre) is the unit of brightness, represents people's impression to the intensity of light.
As it is shown in figure 1, be display brightness model.The brightness of each two field picture is its luminous flux integration total amount in unit are:
The brightness of the first two field picture: L1=S1=(Tframe-TR+Tframe) × GL/2
The brightness of the second two field picture: L2=S2=Tframe × GL
Wherein, L1, L2 represent the first two field picture and the brightness of the second two field picture respectively；Tframe represents the aobvious of every two field picture
Show the time；GL represents the gray-scale intensity of driven；TR represented the time driving foundation.
The requirement shown according to dynamic menu, the display brightness base of two two field picture pictures adjacent during use overdrive technique
This is identical, and therefore, this just requires that overdrive voltage wants appropriate.This is because, excessive overdrive voltage will make moving target
Edge produces bright, the most bilateral, the edge artifacts in i.e. overdriving；And too small overdrive voltage, it will make the response time of LC
The shortest, still cause motion image blurring.
To this end, the embodiment of the present invention one proposes a kind of method determining overdrive voltage.As in figure 2 it is shown, described method
Including:
Step 201, the gray-scale intensity of acquisition target frame image.
Wherein, described target frame image refers to meet the image that display requires, and what following pending two field picture referred to
It is not meet display to require and need the image utilizing overdrive voltage to improve liquid crystal response speed.Such as, target frame image can
To refer to the second two field picture, and following pending image also refers to the first two field picture.
Step 202, obtain time of setting up and the display time of every two field picture that pending two field picture overdrives.
In a particular application, the gray-scale intensity of target frame image, pending two field picture are overdrived time of setting up and every frame
The display time of image is all known.Wherein, the gray-scale intensity of target frame image can be from the display output valve of display image
Obtaining, the time of foundation pre-sets, and the display time of every two field picture is then determined by display pattern.
Step 203, utilize described target frame image gray-scale intensity, described in overdrive time of setting up, described display time
Between determine the gray-scale intensity of overdriving of described pending two field picture.
As it is shown on figure 3, be to drive display brightness model.Principle according to above-mentioned Fig. 1, it is known that:
S1OD≈S2
S1OD=(Tframe-TROD+Tframe)×GLOD/2
S2=Tframe × GL
Thus, can shift onto out:
Wherein, GLod represents that benchmark is overdrived gray-scale intensity, and Tframe represents the display time of every two field picture, and GL represents institute
State the gray-scale intensity of target frame image, TRODThat overdrives described in expression sets up the time.
Therefore, overdrive gray-scale intensity based on the above-mentioned benchmark derived, determine overdriving of described pending two field picture
Gray-scale intensity:
a1×GLod≤GLod'≤a2×GLod
Wherein, a1 represents the first coefficient, and a2 represents the second coefficient, a1 >=0, a1≤a2.
According to international VESA standard, described first coefficient can value be 0.9, and described second coefficient can value be 1.1.
Gray-scale intensity of overdriving described in step 204, basis determines the overdrive voltage of correspondence.
As seen from the above, the scheme of the embodiment of the present invention is utilized, it is not necessary to as in the prior art in different gray scales
Between constantly adjust and determine overdrive voltage, but can directly according to the gray-scale intensity of the target frame image obtained,
The display time of what pending two field picture was overdrived set up time and every two field picture determines overdriving of described pending two field picture
Gray-scale intensity, and then determine that gray-scale intensity of overdriving determines the overdrive voltage of correspondence, thus reduce and determine overdrive voltage
Workload.
As shown in Figure 4, the embodiment of the present invention two proposes a kind of method determining overdrive voltage, including:
Step 401, the gray-scale intensity of acquisition target frame image.
Step 402, obtain time of setting up and the display time of every two field picture that pending two field picture overdrives.
Step 403, utilize described target frame image gray-scale intensity, described in overdrive time of setting up, described display time
Between determine the gray-scale intensity of overdriving of described pending two field picture.
Gray-scale intensity of overdriving described in step 404, basis determines the overdrive voltage of correspondence.
Wherein, the description of step 401-404 can refer to the description of abovementioned steps 201-204.
Step 405, the gray-scale intensity of described target frame image is stored in the first intensity gray scale table.
Step 406, described gray-scale intensity of overdriving is stored in the second intensity gray scale table.
Wherein, as shown in Table 1 and Table 2, described first intensity gray scale table and described second intensity gray scale table include 4 (OK) ×
In 64 (arranging) individual address, and described first intensity gray scale table, each address and described second intensity gray scale table corresponding address have one
One corresponding relation.
Table 1
| 0x00 | 0x 01 | 0x 02 | …… | 0x3D | 0x3E | 0x3F | |
| 00 | L0 | L1 | L 2 | …… | L61 | L62 | L63 |
| 01 | L64 | L65 | L66 | …… | L125 | L126 | L127 |
| 10 | L128 | L129 | L130 | …… | L189 | L190 | L191 |
| 11 | L192 | L193 | L194 | …… | L253 | L254 | L255 |
Table 2
| 0x00 | 0x 01 | 0x 02 | …… | 0x3D | 0x3E | 0x3F | |
| 0 | GLOD0 | GLOD1 | GLOD2 | …… | GLOD61 | GLOD62 | GLOD63 |
| 01 | GLOD64 | GLOD65 | GLOD66 | …… | GLOD125 | GLOD126 | GLOD127 |
| 10 | GLOD128 | GLOD129 | GLOD130 | …… | GLOD189 | GLOD190 | GLOD191 |
| 11 | GLOD192 | GLOD193 | GLOD194 | …… | GLOD253 | GLOD254 | GLOD255 |
In Table 1, each address is for storing the gray-scale intensity of target frame image.Such as, (00,0x 02) this address
Middle storage is the gray-scale intensity of GTG 2.In table 2, overdrive gray-scale intensity for storage in each address.Such as, (00,0x
02) store in this address is the gray-scale intensity of overdriving of GTG 2.
Step 407, receive overdrive gray-scale intensity obtain request, described overdrive gray-scale intensity obtain request include
First gray-scale intensity of described target frame image.
Step 408, according to described target frame image first gray-scale intensity search described first intensity gray scale table, obtain institute
State the first gray-scale intensity of target frame image the first storage address in described first intensity gray scale table.
Step 409, according to described first storage address, obtain and described first second intensity gray scale corresponding to storage address
The second storage address in table, according to the second intensity gray scale table described in described second storage address search, obtains first and overdrives
Gray-scale intensity.
Overdriving after gray-scale intensity obtaining first, sending module can obtain sending out of request to gray-scale intensity of overdriving
The side of sending sends described first and overdrives gray-scale intensity.
In one embodiment, overdrive after gray-scale intensity obtaining first, it is also possible to obtained by overdrive voltage
Delivery block obtains corresponding overdrive voltage, and sending module can also obtain sender's transmission of request to gray-scale intensity of overdriving
Described first overdrives gray scale voltage.
Owing to the address in the first intensity gray scale table and the second intensity gray scale table is one_to_one corresponding, search through step 408
After first intensity gray scale table, first gray-scale intensity the first storage address in described first intensity gray scale table can be obtained.Should
First storage address is also overdrive voltage corresponding to the first gray-scale intensity storage address in the second intensity gray scale table, i.e.
Second storage address.
When exporting the storage address in the first intensity gray scale table, can export according to the form shown in Fig. 5.Wherein, C0-C5
Representing the column information of address in table, R0-R3 represents the row information representing address in table.DE, VS, HS etc. represent synchronizing signal etc..
The first gray-scale intensity during gray-scale intensity obtains request for example, it is assumed that overdrive is L253.Search above-mentioned table 1, obtain
The storage address obtaining its correspondence is (11,0x3D).So, this storage address is exported according to the form shown in Fig. 5.Recipient
After receiving this address, look-up table 2, it is thus achieved that the overdrive voltage that the first gray-scale intensity is corresponding is GLOD253。
So, in embodiments of the present invention, the address Gamma data of pixel in a line represented according to tonal gradation
It is transmitted.In actual applications, encoding critically important to Gamma address, the number of bits taken after coding is the fewest, then and one
The data compression ratio of row is the biggest, then the efficiency of data bus transmission is the highest, and just transmits the clock frequency of data needs
The lowest.
In embodiments of the present invention, by overdrive voltage normal data, form the computing formula with stable output, greatly
The minimizing workload of amplitude, and the artificial impact on data standard, more clearly can measure overdriving and evaluate, no
Can be because individual reason produces the effect that cannot popularize.Utilizing data form to be transmitted and calculate can be empty in the least storage
In complete the mistake of 256 full GTGs and drive output, it is to avoid cross and drive output error, cross the gamma after driving more preferable.
As seen from the above, the scheme of the embodiment of the present invention is utilized, it is not necessary to as in the prior art in different gray scales
Between constantly adjust and determine overdrive voltage, but can directly according to the gray-scale intensity of the target frame image obtained,
The display time of what pending two field picture was overdrived set up time and every two field picture determines overdriving of described pending two field picture
Gray-scale intensity, and then determine that gray-scale intensity of overdriving determines the overdrive voltage of correspondence, thus reduce and determine overdrive voltage
Workload.
As shown in Figure 6, the device of the determination overdrive voltage of the embodiment of the present invention three, including:
First acquisition module 601, for obtaining the gray-scale intensity of target frame image；Second acquisition module 602, is used for obtaining
What pending two field picture was overdrived sets up the display time of time and every two field picture；Overdrive gray-scale intensity acquisition module 603, use
In utilize described target frame image gray-scale intensity, described in time of setting up of overdriving, described display time determine described in wait to locate
The gray-scale intensity of overdriving of reason two field picture；Overdrive voltage acquisition module 604, determines for gray-scale intensity of overdriving described in basis
Corresponding overdrive voltage.
Wherein, in actual applications, gray-scale intensity acquisition module 603 of overdriving described in is treated described in determining according to the following equation
The gray-scale intensity of overdriving of process two field picture:
a1×GLod≤GLod'≤a2×GLod
Wherein, GLod' represents that gray-scale intensity of overdriving, GLod represent that benchmark is overdrived gray-scale intensity, and Tframe represents every
The display time of two field picture, GL represents the gray-scale intensity of described target frame image, TRODThat overdrives described in expression sets up the time,
A1 represents the first coefficient, and a2 represents the second coefficient, a1≤a2.
According to international VESA standard, described first coefficient is 0.9, and described second coefficient is 1.1.
As it is shown in fig. 7, for saving memory space, described device also includes:
First memory module 605, for being stored in the gray-scale intensity of described target frame image in the first intensity gray scale table；
Second memory module 606, for being stored in described gray-scale intensity of overdriving in the second intensity gray scale table.Wherein said first bright
Degree GTG table and described second intensity gray scale table be 4 row × 64 row table, and in described first intensity gray scale table each address and
Described second intensity gray scale table corresponding address has one-to-one relationship.
As shown in Figure 8, for improving data bus transmission efficiency, described device also includes:
Request receiver module 607, for reception overdrive gray-scale intensity obtain request, obtain at described gray-scale intensity of overdriving
The request of taking includes the first gray-scale intensity of described target frame image；Search module 608, for according to described target frame image
First gray-scale intensity searches described first intensity gray scale table, obtains the first gray-scale intensity of described target frame image described first
The first storage address in intensity gray scale table；According to described first storage address, obtain corresponding with described first storage address
The second storage address in second intensity gray scale table, and according to the second intensity gray scale table described in described second storage address search,
Obtain first to overdrive gray-scale intensity；Sending module 609, is used for sending described first and overdrives gray-scale intensity.
The operation principle of device of the present invention can refer to the description of preceding method embodiment.
As seen from the above, the scheme of the embodiment of the present invention is utilized, it is not necessary to as in the prior art in different gray scales
Between constantly adjust and determine overdrive voltage, but can directly according to the gray-scale intensity of the target frame image obtained,
The display time of what pending two field picture was overdrived set up time and every two field picture determines overdriving of described pending two field picture
Gray-scale intensity, and then determine that gray-scale intensity of overdriving determines the overdrive voltage of correspondence, thus reduce and determine overdrive voltage
Workload.
The embodiment of the present invention additionally provides a kind of display device, including the dress of determination overdrive voltage arbitrary for Fig. 5-Fig. 7
Put.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of without departing from principle of the present invention, it is also possible to make some improvements and modifications, these improvements and modifications are also
Should be regarded as protection scope of the present invention.
Claims (11)
1. the method determining overdrive voltage, it is characterised in that including:
Obtain the gray-scale intensity of target frame image；
Obtain time of setting up and the display time of every two field picture that pending two field picture is overdrived；
Utilize described target frame image gray-scale intensity, described in time of setting up of overdriving, described display time determine described in treat
Process the gray-scale intensity of overdriving of two field picture；
The overdrive voltage of correspondence is determined according to described gray-scale intensity of overdriving.
Method the most according to claim 1, it is characterised in that utilize the GTG of described target frame image according to the following equation
Brightness, described in time of setting up of overdriving, described display time determine the gray-scale intensity of overdriving of described pending two field picture:
a1×GLod≤GLod'≤a2×GLod
Wherein, GLod' represents that gray-scale intensity of overdriving, GLod represent that benchmark is overdrived gray-scale intensity, and Tframe represents every frame figure
The display time of picture, GL represents the gray-scale intensity of described target frame image, TRODThat overdrives described in expression sets up the time, a1 table
Showing the first coefficient, a2 represents the second coefficient, a1 >=0, a1≤a2.
Method the most according to claim 2, it is characterised in that described first coefficient is 0.9, described second coefficient is 1.1.
Method the most according to claim 1, it is characterised in that described method also includes:
The gray-scale intensity of described target frame image is stored in the first intensity gray scale table；
Described gray-scale intensity of overdriving is stored in the second intensity gray scale table；
Wherein said first intensity gray scale table and described second intensity gray scale table include 4 (OK) × 64 (arranging) individual addresses, and described
In first intensity gray scale table, each address and described second intensity gray scale table corresponding address have one-to-one relationship.
Method the most according to claim 4, it is characterised in that described method also includes:
Reception overdrive gray-scale intensity obtain request, described overdrive gray-scale intensity obtain request include described target frame figure
First gray-scale intensity of picture；
The first gray-scale intensity according to described target frame image searches described first intensity gray scale table, obtains described target frame image
The first gray-scale intensity in described first intensity gray scale table first storage address；
According to described first storage address, second obtained in the second intensity gray scale table corresponding with described first storage address is deposited
Storage address, according to the second intensity gray scale table described in described second storage address search, obtains first and overdrives gray-scale intensity.
6. the device determining overdrive voltage, it is characterised in that including:
First acquisition module, for obtaining the gray-scale intensity of target frame image；
Second acquisition module, for obtaining time of setting up and the display time of every two field picture that pending two field picture is overdrived；
Overdrive gray-scale intensity acquisition module, for utilize described target frame image gray-scale intensity, described in the foundation overdrived
Time, described display time determine the gray-scale intensity of overdriving of described pending two field picture；
Overdrive voltage acquisition module, determines the overdrive voltage of correspondence for gray-scale intensity of overdriving described in basis.
Device the most according to claim 6, it is characterised in that described in overdrive gray-scale intensity acquisition module according to following public affairs
Formula determines the gray-scale intensity of overdriving of described pending two field picture:
a1×GLod≤GLod'≤a2×GLod
Wherein, GLod' represents that gray-scale intensity of overdriving, GLod represent that benchmark is overdrived gray-scale intensity, and Tframe represents every frame figure
The display time of picture, GL represents the gray-scale intensity of described target frame image, TRODThat overdrives described in expression sets up the time, a1 table
Showing the first coefficient, a2 represents the second coefficient, a1≤a2.
Device the most according to claim 7, it is characterised in that described first coefficient is 0.9, described second coefficient is 1.1.
Device the most according to claim 6, it is characterised in that described device also includes:
First memory module, for being stored in the gray-scale intensity of described target frame image in the first intensity gray scale table；
Second memory module, for being stored in described gray-scale intensity of overdriving in the second intensity gray scale table；
Wherein said first intensity gray scale table and described second intensity gray scale table are the table of 4 row × 64 row, and described first brightness
In GTG table, each address and described second intensity gray scale table corresponding address have one-to-one relationship.
Device the most according to claim 9, it is characterised in that described device also includes:
Request receiver module, for reception overdrive gray-scale intensity obtain request, described overdrive gray-scale intensity obtain request
Include the first gray-scale intensity of described target frame image；
Search module, search described first intensity gray scale table for the first gray-scale intensity according to described target frame image, obtain
First gray-scale intensity of described target frame image the first storage address in described first intensity gray scale table；According to described first
Storage address, obtains the second storage address in the second intensity gray scale table corresponding with described first storage address, and according to institute
State the second intensity gray scale table described in the second storage address search, obtain first and overdrive gray-scale intensity；
Sending module, is used for sending described first and overdrives gray-scale intensity.
11. 1 kinds of display devices, it is characterised in that include the dress of the arbitrary described determination overdrive voltage of claim 6-10
Put.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369418A (en) * | 2017-08-04 | 2017-11-21 | 中国科学院光电技术研究所 | A kind of liquid crystal based on FPGA is overdrived implementation method |
| CN109686329A (en) * | 2018-12-29 | 2019-04-26 | 成都中电熊猫显示科技有限公司 | It overdrives method, equipment and the storage medium of debugging |
| CN110619813A (en) * | 2018-06-20 | 2019-12-27 | 京东方科技集团股份有限公司 | Display substrate, driving method thereof, display device and high-precision metal mask |
| CN110620129A (en) * | 2018-06-20 | 2019-12-27 | 京东方科技集团股份有限公司 | Display substrate, driving method thereof, display device and high-precision metal mask plate |
| CN111243546A (en) * | 2020-03-13 | 2020-06-05 | Tcl华星光电技术有限公司 | Method and system for measuring overdrive voltage, and computer readable storage medium |
| US11263968B2 (en) | 2018-06-20 | 2022-03-01 | Boe Technology Group Co., Ltd. | Display substrate and driving method thereof, and display device |
| WO2023103152A1 (en) * | 2021-12-07 | 2023-06-15 | 惠州华星光电显示有限公司 | Driving method for display, and display |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1690776A (en) * | 2004-04-21 | 2005-11-02 | 钰瀚科技股份有限公司 | Method for improving image gray level response speed |
| CN1956049A (en) * | 2005-09-16 | 2007-05-02 | 三星电子株式会社 | Method for driving liquid crystal display and apparatus employing the same |
| EP1879173A1 (en) * | 2006-07-11 | 2008-01-16 | Hannstar Display Corporation | Liquid crystal display and over driving method thereof |
| US20090207117A1 (en) * | 2008-02-18 | 2009-08-20 | Hannstar Display Corporation | Field sequential lcd driving method |
| CN102568427A (en) * | 2012-02-24 | 2012-07-11 | 友达光电股份有限公司 | Method for implementing uniform gray-level picture in liquid crystal 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 |
| CN103474042A (en) * | 2013-09-12 | 2013-12-25 | 青岛海信电器股份有限公司 | Method, device and displaying device for overvoltage driving |
| CN105913825A (en) * | 2016-06-30 | 2016-08-31 | 京东方科技集团股份有限公司 | Liquid crystal display driving method, liquid crystal display and display device |
-
2016
- 2016-10-24 CN CN201610926111.4A patent/CN106324875B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1690776A (en) * | 2004-04-21 | 2005-11-02 | 钰瀚科技股份有限公司 | Method for improving image gray level response speed |
| CN1956049A (en) * | 2005-09-16 | 2007-05-02 | 三星电子株式会社 | Method for driving liquid crystal display and apparatus employing the same |
| EP1879173A1 (en) * | 2006-07-11 | 2008-01-16 | Hannstar Display Corporation | Liquid crystal display and over driving method thereof |
| US20090207117A1 (en) * | 2008-02-18 | 2009-08-20 | Hannstar Display Corporation | Field sequential lcd driving method |
| CN102693702A (en) * | 2011-03-21 | 2012-09-26 | 宏碁股份有限公司 | Liquid crystal display apparatus and driving method thereof |
| CN102568427A (en) * | 2012-02-24 | 2012-07-11 | 友达光电股份有限公司 | Method for implementing uniform gray-level picture in liquid crystal display |
| CN103474042A (en) * | 2013-09-12 | 2013-12-25 | 青岛海信电器股份有限公司 | Method, device and displaying device for overvoltage driving |
| CN105913825A (en) * | 2016-06-30 | 2016-08-31 | 京东方科技集团股份有限公司 | Liquid crystal display driving method, liquid crystal display and display device |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369418B (en) * | 2017-08-04 | 2019-08-02 | 中国科学院光电技术研究所 | A kind of liquid crystal based on FPGA is overdrived implementation method |
| CN107369418A (en) * | 2017-08-04 | 2017-11-21 | 中国科学院光电技术研究所 | A kind of liquid crystal based on FPGA is overdrived implementation method |
| US11263968B2 (en) | 2018-06-20 | 2022-03-01 | Boe Technology Group Co., Ltd. | Display substrate and driving method thereof, and display device |
| US11600230B2 (en) | 2018-06-20 | 2023-03-07 | Boe Technology Group Co., Ltd. | Display substrate and driving method thereof, and display device |
| CN110620129A (en) * | 2018-06-20 | 2019-12-27 | 京东方科技集团股份有限公司 | Display substrate, driving method thereof, display device and high-precision metal mask plate |
| US11900853B2 (en) | 2018-06-20 | 2024-02-13 | Boe Technology Group Co., Ltd. | Display substrate and display device |
| US11776452B2 (en) | 2018-06-20 | 2023-10-03 | Boe Technology Group Co., Ltd. | Display substrate and display device |
| CN110620129B (en) * | 2018-06-20 | 2022-02-01 | 京东方科技集团股份有限公司 | Display substrate, driving method thereof, display device and high-precision metal mask plate |
| CN110619813A (en) * | 2018-06-20 | 2019-12-27 | 京东方科技集团股份有限公司 | Display substrate, driving method thereof, display device and high-precision metal mask |
| US11315469B2 (en) | 2018-06-20 | 2022-04-26 | Boe Technology Group Co., Ltd. | Display substrate, method for driving the same, display device, and high-precision metal mask |
| US11538392B2 (en) | 2018-06-20 | 2022-12-27 | Boe Technology Group Co Ltd. | Display substrate, method for driving the same, display device, and fine metal mask |
| US11562680B2 (en) | 2018-06-20 | 2023-01-24 | Boe Technology Group Co., Ltd. | Display substrate and display device |
| CN109686329A (en) * | 2018-12-29 | 2019-04-26 | 成都中电熊猫显示科技有限公司 | It overdrives method, equipment and the storage medium of debugging |
| CN109686329B (en) * | 2018-12-29 | 2020-12-08 | 成都中电熊猫显示科技有限公司 | Method, device and storage medium for over-drive debugging |
| CN111243546A (en) * | 2020-03-13 | 2020-06-05 | Tcl华星光电技术有限公司 | Method and system for measuring overdrive voltage, and computer readable storage medium |
| WO2023103152A1 (en) * | 2021-12-07 | 2023-06-15 | 惠州华星光电显示有限公司 | Driving method for display, and display |
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