CN106324875B - A kind of method, apparatus and display equipment of determining overdrive voltage - Google Patents
A kind of method, apparatus and display equipment of determining overdrive voltage Download PDFInfo
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- CN106324875B CN106324875B CN201610926111.4A CN201610926111A CN106324875B CN 106324875 B CN106324875 B CN 106324875B CN 201610926111 A CN201610926111 A CN 201610926111A CN 106324875 B CN106324875 B CN 106324875B
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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 present invention provides the method, apparatus and display equipment of a kind of determining overdrive voltage, is related to technical field of liquid crystal display, to reduce the workload determined when overdriving gray-scale intensity.The method of determination overdrive voltage of the invention includes: the gray-scale intensity for obtaining target frame image；Obtain the display time of settling time and every frame image that frame image to be processed is overdrived；The gray-scale intensity of overdriving of the frame image to be processed is determined using the gray-scale intensity of the target frame image, the settling time overdrived, the display time；Corresponding overdrive voltage is determined according to the gray-scale intensity of overdriving.Present invention is mainly used for technical field of liquid crystal display.
Description
Technical field
The present invention relates to the method, apparatus of technical field of liquid crystal display more particularly to a kind of determining overdrive voltage and aobvious
Show equipment.
Background technique
With the development of display technology, liquid crystal display due to small in size, higher resolution ratio, frivolous shape with
And the advantages that lower energy consumption and radiation, the mainstream device being increasingly becoming in display device.From the working principle of liquid crystal display
On say, liquid crystal needs the biggish response time from by applied force and the rotation angles of needs is reached.
Overdrive voltage is generally obtained by LCD-Overdrive LUT Method in the prior art.In this approach,
Take-off potential VPF and target potential VCF is determined first, then overdrive voltage VOD, and the response curve observed and measured out are set
It whether is optimal curve.If it is not, then needing to adjust overdrive voltage VOD again, until finding optimal overdrive voltage
Until.Wherein, what the grayscale value and current frame image that the best overdrive voltage and previous frame image are presented to be presented
Grayscale value is related.
But in the implementation of the present invention inventors have found that by taking 0 to 255 grayscale as an example, a total of 256 × 256
Gray scale combines, will if will constantly adjust according to the method described above and determine overdrive voltage between every two gray scale
It will lead to heavy workload, 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 of determining overdrive voltage, overdrive to reduce determination
Workload when gray-scale intensity.
In order to solve the above technical problems, the present invention provides a kind of method of determining overdrive voltage, comprising:
Obtain the gray-scale intensity of target frame image；
Obtain the display time of settling time and every frame image that frame image to be processed is overdrived；
Institute is determined using the gray-scale intensity of the target frame image, the settling time overdrived, the display time
State the gray-scale intensity of overdriving of frame image to be processed；
Corresponding overdrive voltage is determined according to the gray-scale intensity of overdriving.
Wherein, the gray-scale intensity of the target frame image, the settling time overdrived, institute are utilized according to the following equation
State the gray-scale intensity of overdriving for showing that the time determines the frame image to be processed:
a1×GLod≤GLod'≤a2×GLod
Wherein, GLod' expression is overdrived gray-scale intensity, and GLod indicates that benchmark is overdrived gray-scale intensity, and Tframe indicates every
The display time of frame image, GL indicate the gray-scale intensity of the target frame image, TRODThe settling time overdrived described in expression,
A1 indicates that the first coefficient, a2 indicate the second coefficient, a1 >=0, a1≤a2.
Wherein, first coefficient is 0.9, and second coefficient is 1.1.
Wherein, the method also includes:
The gray-scale intensity of the target frame image is stored in the first intensity gray scale table；
The gray-scale intensity of overdriving is stored in the second intensity gray scale table；
Wherein the first intensity gray scale table and the second intensity gray scale table include 4 (row) × 64 (column) a addresses, and
Each address and the second intensity gray scale table corresponding address have one-to-one relationship in the first intensity gray scale table.
Wherein, the method also includes:
Reception is overdrived gray-scale intensity acquisition request, includes the target in the gray-scale intensity acquisition request of overdriving
First gray-scale intensity of frame image；
The first intensity gray scale table is searched according to the first gray-scale intensity of the target frame image, obtains the target frame
First storage address of first gray-scale intensity of image in the first intensity gray scale table；
According to first storage address, in the second intensity gray scale table corresponding with first storage address is obtained
Two storage address search the second intensity gray scale table according to second storage address, obtain first and overdrive gray-scale intensity.
Second aspect, the present invention provide a kind of device of determining overdrive voltage, comprising:
First obtains module, for obtaining the gray-scale intensity of target frame image；
Second obtains module, when for obtaining the display of settling time and every frame image that frame image to be processed is overdrived
Between；
Gray-scale intensity of overdriving obtains module, for using the target frame image gray-scale intensity, described overdrive
Settling time, the display time determine the gray-scale intensity of overdriving of the frame image to be processed；
Overdrive voltage obtains module, determines corresponding overdrive voltage for gray-scale intensity of overdriving according to.
Wherein, the gray-scale intensity of overdriving obtains module and determines that crossing for the frame image to be processed is driven according to the following equation
Dynamic gray-scale intensity:
a1×GLod≤GLod'≤a2×GLod
Wherein, GLod' expression is overdrived gray-scale intensity, and GLod indicates that benchmark is overdrived gray-scale intensity, and Tframe indicates every
The display time of frame image, GL indicate the gray-scale intensity of the target frame image, TRODThe settling time overdrived described in expression,
A1 indicates that the first coefficient, a2 indicate the second coefficient, a1≤a2.
Wherein, first coefficient is 0.9, and second coefficient is 1.1.
Wherein, described device further include:
First memory module, for the gray-scale intensity of the target frame image to be stored in the first intensity gray scale table；
Second memory module, for the gray-scale intensity of overdriving to be stored in the second intensity gray scale table；
The wherein table that the first intensity gray scale table and the second intensity gray scale table arrange for 4 rows × 64, and described first
Each address and the second intensity gray scale table corresponding address have one-to-one relationship in intensity gray scale table.
Wherein, described device further include:
Request receiving module is obtained for receiving gray-scale intensity acquisition request of overdriving in the gray-scale intensity of overdriving
It include the first gray-scale intensity of the target frame image in request；
Searching module, for searching the first intensity gray scale table according to the first gray-scale intensity of the target frame image,
Obtain first storage address of the first gray-scale intensity of the target frame image in the 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 first storage address, and root
The second intensity gray scale table is searched according to second storage address, first is obtained and overdrives gray-scale intensity；
Sending module is overdrived gray-scale intensity for sending described first.
The third aspect, the present invention provide a kind of display equipment, the device including weighing determining overdrive voltage above-mentioned.
The advantageous effects of the above technical solutions of the present invention are as follows:
In embodiments of the present invention, it can be overdrived according to gray-scale intensity, the frame image to be processed of the target frame image of acquisition
Settling time and display time of every frame image determine the gray-scale intensity of overdriving of the frame image to be processed, and then determined
Driving gray-scale intensity determines corresponding overdrive voltage.Therefore, using the scheme of the embodiment of the present invention, without as in the prior art
It is constantly adjusted between different gray scales like that and determines overdrive voltage, but can be directly according to the target frame of acquisition
The display time of settling time and every frame image that the gray-scale intensity of image, frame image to be processed are overdrived determine described to be processed
The gray-scale intensity of overdriving of frame image, and then determine that gray-scale intensity of overdriving determines corresponding overdrive voltage, to reduce
Determine the workload of overdrive voltage.
Detailed description of the invention
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 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 the schematic diagram of device of the 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.
Specific embodiment
Below in conjunction with drawings and examples, specific embodiments of the present invention will be described in further detail.Following reality
Example is applied for illustrating the present invention, but is not intended to limit the scope of the invention.
The response speed of liquid crystal is improved, using overdrive technique generally in practical applications so as to improve the response of liquid crystal
Time.
With TFT-LCD (Thin film transistor-liquid crystal display, tft liquid crystal
Display) for, when the gate source voltage of TFT is greater than drain voltage, the source of TFT, drain electrode are connected, and the voltage for being applied to source electrode is quick
It is charged on storage capacitance CS (CS shortens the charging time) and CLC.When TFT gate source voltage be lower than TFT blanking voltage,
Then its source, drain electrode cut-off, the voltage for being applied to source electrode can not be charged on storage capacitance CS and CLC.C=on liquid crystal molecule capacitor
Q/V is affected by the external environment when electricity Q is remained unchanged, and the capacitor of liquid crystal capacitance CLC rises, to will lead to corresponding electricity
Press V decline.Therefore the gray scale response curve of liquid crystal is difficult to reach target value in a frame time, and overdrive technique passes through increase
Driving voltage can be such that electricity Q increases, and the response time of such liquid crystal shortens.Therefore the target of overdrive technique is exactly: to appointing
Jump between grayscale of anticipating, it is ensured that in a frame time, the brightness output of liquid crystal reaches the stationary value of brightness needed for target gray.
In practical applications, human eye experiences the height (i.e. luminous energy) of brightness and luminous flux, lighting time have such as ShiShimonoseki
System:
Human eye experiences bright height (luminous energy)=luminous flux (lumen) × lighting time=Lm × T=cd/m2× area ×
T。
Under display module scheme, in the case where Lm and light-emitting area have determined, the luminous energy that human eye is experienced is
By T, i.e. lighting time determines, cd/m2(candela/square metre) is the unit of brightness, indicates impression of the people to the intensity of light.
As shown in Figure 1, being display brightness model.The brightness of each frame image is integral total amount of its luminous flux on unit area:
The brightness of first frame image: L1=S1=(Tframe-TR+Tframe) × GL/2
The brightness of second frame image: L2=S2=Tframe × GL
Wherein, L1, L2 respectively indicate the brightness of first frame image and the second frame image；Tframe indicates the aobvious of every frame image
Show the time；The gray-scale intensity of GL expression normal driving；TR indicated to drive the time established.
According to the requirement of moving picture display, the display brightness base of adjacent two field pictures picture when using overdrive technique
This is identical, and therefore, it is appropriate that this requires overdrive voltages.This is because excessive overdrive voltage will make moving target
Edge generate it is bright, dark bilateral, that is, overdrive in edge artifacts；And too small overdrive voltage, it will make the response time of LC
It is not short enough, still cause motion image blurring.
For this purpose, the embodiment of the present invention one proposes a kind of method of determining overdrive voltage.As shown in Fig. 2, the method
Include:
Step 201, the gray-scale intensity for obtaining target frame image.
Wherein, the target frame image refers to meeting the image that display requires, and what following frame images to be processed referred to
It is the image for not meeting display and requiring and needing to improve liquid crystal response speed using overdrive voltage.For example, target frame image can
To refer to the second frame image, and following images to be processed also refers to first frame image.
Step 202, the display time for obtaining settling time and every frame image that frame image to be processed is overdrived.
In a particular application, the settling time and every frame that the gray-scale intensity of target frame image, frame image to be processed are overdrived
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
It obtains, settling time is pre-set, and the display time of every frame image is then determined by display pattern.
Step 203, using the target frame image gray-scale intensity, the settling time overdrived, the display when
Between determine the gray-scale intensity of overdriving of the frame image to be processed.
As shown in figure 3, being drive display brightness model.According to the principle of above-mentioned Fig. 1, it is known that:
S1OD≈S2
S1OD=(Tframe-TROD+Tframe)×GLOD/2
S2=Tframe × GL
To shift onto out:
Wherein, GLod indicates that benchmark is overdrived gray-scale intensity, and Tframe indicates the display time of every frame image, and GL indicates institute
State the gray-scale intensity of target frame image, TRODThe settling time overdrived described in expression.
Therefore, it is overdrived gray-scale intensity based on the above-mentioned benchmark derived, determines overdriving for the frame image to be processed
Gray-scale intensity:
a1×GLod≤GLod'≤a2×GLod
Wherein, a1 indicates that the first coefficient, a2 indicate the second coefficient, a1 >=0, a1≤a2.
According to international VESA standard, first coefficient can value be 0.9, second coefficient can value be 1.1.
Step 204, gray-scale intensity of overdriving according to determine corresponding overdrive voltage.
From the above, it can be seen that using the scheme of the embodiment of the present invention, without as in the prior art in different gray scales
Between constantly adjusted and determine overdrive voltage, but can directly according to the gray-scale intensity of the target frame image of acquisition,
The display time of settling time and every frame image that frame image to be processed is overdrived determine overdriving for the frame image to be processed
Gray-scale intensity, and then determine that gray-scale intensity of overdriving determines corresponding overdrive voltage, to reduce determining overdrive voltage
Workload.
As shown in figure 4, the embodiment of the present invention two proposes a kind of method of determining overdrive voltage, comprising:
Step 401, the gray-scale intensity for obtaining target frame image.
Step 402, the display time for obtaining settling time and every frame image that frame image to be processed is overdrived.
Step 403, using the target frame image gray-scale intensity, the settling time overdrived, the display when
Between determine the gray-scale intensity of overdriving of the frame image to be processed.
Step 404, gray-scale intensity of overdriving according to determine corresponding overdrive voltage.
Wherein, the description of step 401-404 can refer to the description of abovementioned steps 201-204.
The gray-scale intensity of the target frame image is stored in the first intensity gray scale table by step 405.
The gray-scale intensity of overdriving is stored in the second intensity gray scale table by step 406.
Wherein, as shown in Table 1 and Table 2, the first intensity gray scale table and the second intensity gray scale table include 4 (rows) ×
64 (column) a addresses, and each address and the second intensity gray scale table corresponding address have one in the first intensity gray scale table
One corresponding relationship.
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 used to store the gray-scale intensity of target frame image.For example, (00,0x 02) this address
Middle storage be grayscale 2 gray-scale intensity.In table 2, each address is for storing gray-scale intensity of overdriving.For example, (00,0x
02) what is stored in this address is the gray-scale intensity of overdriving of grayscale 2.
Step 407 receives gray-scale intensity acquisition request of overdriving, and includes in the gray-scale intensity acquisition request of overdriving
First gray-scale intensity of the target frame image.
Step 408 searches the first intensity gray scale table according to the first gray-scale intensity of the target frame image, obtains institute
State first storage address of the first gray-scale intensity of target frame image in the first intensity gray scale table.
Step 409, according to first storage address, obtain the second intensity gray scale corresponding with first storage address
The second storage address in table searches the second intensity gray scale table according to second storage address, obtains first and overdrives
Gray-scale intensity.
It overdrives after gray-scale intensity obtaining first, sending module can be to the hair for gray-scale intensity acquisition request of overdriving
The side of sending sends described first and overdrives gray-scale intensity.
In one embodiment, it overdrives after gray-scale intensity obtaining first, can also be obtained by overdrive voltage
Modulus block obtains corresponding overdrive voltage, and sending module can also be sent to the sender for gray-scale intensity acquisition request of overdriving
Described first overdrives gray scale voltage.
Since the address in the first intensity gray scale table and the second intensity gray scale table is to correspond, searched through step 408
After first intensity gray scale table, first storage address of first gray-scale intensity in the first intensity gray scale table can be obtained.It should
First storage address is also storage address of the corresponding overdrive voltage of the first gray-scale intensity 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 be exported according to format shown in fig. 5.Wherein, C0-C5
The column information of address in table is represented, R0-R3 indicates to represent the row information of address in table.DE, VS, HS etc. indicate synchronization signal etc..
For example, it is assumed that the first gray-scale intensity in gray-scale intensity acquisition request of overdriving is L253.Above-mentioned table 1 is searched, is obtained
Obtaining its corresponding storage address is (11,0x3D).So, this storage address is exported according to format shown in fig. 5.Recipient
After receiving the address, look-up table 2, obtaining the corresponding overdrive voltage of the first gray-scale intensity is GLOD253。
In this way, in embodiments of the present invention, the address that the Gamma data of pixel in a line are represented according to tonal gradation
It is transmitted.In practical applications, the address Gamma encode critically important, the number of bits occupied after coding is fewer, then and one
Capable data compression ratio is bigger, then the efficiency of data bus transmission is higher, and transmits the clock frequency of data needs just
It is lower.
In embodiments of the present invention, by overdrive voltage normal data, being formed has the calculation formula for stablizing output, greatly
The reduction workload of amplitude, and artificially the influence of data standard more clearly can be measured and be evaluated to overdriving, no
It can be because individual reason generates the effect that can not be popularized.Being transmitted and calculated using data format can be in the storage sky of very little
The interior drive of crossing for completing 256 full grayscale exports, and avoids drive output error, the gamma crossed after driving is more preferable.
From the above, it can be seen that using the scheme of the embodiment of the present invention, without as in the prior art in different gray scales
Between constantly adjusted and determine overdrive voltage, but can directly according to the gray-scale intensity of the target frame image of acquisition,
The display time of settling time and every frame image that frame image to be processed is overdrived determine overdriving for the frame image to be processed
Gray-scale intensity, and then determine that gray-scale intensity of overdriving determines corresponding overdrive voltage, to reduce determining overdrive voltage
Workload.
As shown in fig. 6, the device of the determination overdrive voltage of the embodiment of the present invention three, comprising:
First obtains module 601, for obtaining the gray-scale intensity of target frame image；Second obtains module 602, for obtaining
The display time of settling time and every frame image that frame image to be processed is overdrived；Gray-scale intensity of overdriving obtains module 603, uses
It is determined in the gray-scale intensity using the target frame image, the settling time overdrived, the display time described wait locate
Manage the gray-scale intensity of overdriving of frame image；Overdrive voltage obtains module 604, and for overdriving according to, gray-scale intensity is determined
Corresponding overdrive voltage.
Wherein, in practical applications, the gray-scale intensity of overdriving obtain module 603 determine according to the following equation it is described to
Handle the gray-scale intensity of overdriving of frame image:
a1×GLod≤GLod'≤a2×GLod
Wherein, GLod' expression is overdrived gray-scale intensity, and GLod indicates that benchmark is overdrived gray-scale intensity, and Tframe indicates every
The display time of frame image, GL indicate the gray-scale intensity of the target frame image, TRODThe settling time overdrived described in expression,
A1 indicates that the first coefficient, a2 indicate the second coefficient, a1≤a2.
According to international VESA standard, first coefficient is 0.9, and second coefficient is 1.1.
As shown in fig. 7, to save memory space, described device further include:
First memory module 605, for the gray-scale intensity of the target frame image to be stored in the first intensity gray scale table；
Second memory module 606, for the gray-scale intensity of overdriving to be stored in the second intensity gray scale table.Wherein described first is bright
Spending grayscale table and the second intensity gray scale table is 4 rows × 64 column table, and in the first intensity gray scale table each address and
The second intensity gray scale table corresponding address has one-to-one relationship.
As shown in figure 8, to improve data bus transmission efficiency, described device further include:
Request receiving module 607 is obtained for receiving gray-scale intensity acquisition request of overdriving in the gray-scale intensity of overdriving
Take the first gray-scale intensity in request including the target frame image；Searching module 608, for according to the target frame image
First gray-scale intensity searches the first intensity gray scale table, obtains the first gray-scale intensity of the target frame image described first
The first storage address in intensity gray scale table；According to first storage address, obtain corresponding with first storage address
The second storage address in second intensity gray scale table, and the second intensity gray scale table is searched according to second storage address,
First is obtained to overdrive gray-scale intensity；Sending module 609 is overdrived gray-scale intensity for sending described first.
The working principle of device of the present invention can refer to the description of preceding method embodiment.
From the above, it can be seen that using the scheme of the embodiment of the present invention, without as in the prior art in different gray scales
Between constantly adjusted and determine overdrive voltage, but can directly according to the gray-scale intensity of the target frame image of acquisition,
The display time of settling time and every frame image that frame image to be processed is overdrived determine overdriving for the frame image to be processed
Gray-scale intensity, and then determine that gray-scale intensity of overdriving determines corresponding overdrive voltage, to reduce determining overdrive voltage
Workload.
The embodiment of the invention also provides a kind of display equipment, the dress including Fig. 5-Fig. 7 any determination overdrive voltage
It sets.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of method of determining overdrive voltage characterized by comprising
Obtain the gray-scale intensity of target frame image；
Obtain the display time of settling time and every frame image that frame image to be processed is overdrived；
Using the gray-scale intensity of the target frame image, the settling time overdrived, the display time determine it is described to
Handle the gray-scale intensity of overdriving of frame image；
Corresponding overdrive voltage is determined according to the gray-scale intensity of overdriving；
Wherein, the gray-scale intensity of the target frame image, settling time overdrived, described aobvious is utilized according to the following equation
Show that the time determines the gray-scale intensity of overdriving of the frame image to be processed:
a1×GLod≤GLod'≤a2×GLod
Wherein, GLod' expression is overdrived gray-scale intensity, and GLod indicates that benchmark is overdrived gray-scale intensity, and Tframe indicates every frame figure
The display time of picture, GL indicate the gray-scale intensity of the target frame image, TRODThe settling time overdrived described in expression, a1 table
Show that the first coefficient, a2 indicate the second coefficient, a1 >=0, a1≤a2.
2. second coefficient is 1.1 the method according to claim 1, wherein first coefficient is 0.9.
3. the method according to claim 1, wherein the method also includes:
The gray-scale intensity of the target frame image is stored in the first intensity gray scale table；
The gray-scale intensity of overdriving is stored in the second intensity gray scale table；
Wherein the first intensity gray scale table and the second intensity gray scale table include that 4 rows × 64 arrange an address, and described first
Each address and the second intensity gray scale table corresponding address have one-to-one relationship in intensity gray scale table.
4. according to the method described in claim 3, it is characterized in that, the method also includes:
Reception is overdrived gray-scale intensity acquisition request, includes the target frame figure in the gray-scale intensity acquisition request of overdriving
First gray-scale intensity of picture；
The first intensity gray scale table is searched according to the first gray-scale intensity of the target frame image, obtains the target frame image
First storage address of first gray-scale intensity in the first intensity gray scale table；
According to first storage address, second obtained in the second intensity gray scale table corresponding with first storage address is deposited
Address is stored up, the second intensity gray scale table is searched according to second storage address, first is obtained and overdrives gray-scale intensity.
5. a kind of device of determining overdrive voltage characterized by comprising
First obtains module, for obtaining the gray-scale intensity of target frame image；
Second obtains module, for obtaining the display time of settling time and every frame image that frame image to be processed is overdrived；
Gray-scale intensity of overdriving obtains module, for the gray-scale intensity using the target frame image, the foundation overdrived
Time, the display time determine the gray-scale intensity of overdriving of the frame image to be processed；
Overdrive voltage obtains module, determines corresponding overdrive voltage for gray-scale intensity of overdriving according to；
Wherein, the gray-scale intensity of overdriving obtains the ash of overdriving that module determines the frame image to be processed according to the following equation
Rank brightness:
a1×GLod≤GLod'≤a2×GLod
Wherein, GLod' expression is overdrived gray-scale intensity, and GLod indicates that benchmark is overdrived gray-scale intensity, and Tframe indicates every frame figure
The display time of picture, GL indicate the gray-scale intensity of the target frame image, TRODThe settling time overdrived described in expression, a1 table
Show that the first coefficient, a2 indicate the second coefficient, a1≤a2.
6. device according to claim 5, which is characterized in that first coefficient is 0.9, and second coefficient is 1.1.
7. device according to claim 5, which is characterized in that described device further include:
First memory module, for the gray-scale intensity of the target frame image to be stored in the first intensity gray scale table；
Second memory module, for the gray-scale intensity of overdriving to be stored in the second intensity gray scale table；
The wherein table that the first intensity gray scale table and the second intensity gray scale table arrange for 4 rows × 64, and first brightness
Each address and the second intensity gray scale table corresponding address have one-to-one relationship in grayscale table.
8. device according to claim 7, which is characterized in that described device further include:
Request receiving module, for receiving gray-scale intensity acquisition request of overdriving, in the gray-scale intensity acquisition request of overdriving
In include the target frame image the first gray-scale intensity；
Searching module is obtained for searching the first intensity gray scale table according to the first gray-scale intensity of the target frame image
First storage address of first gray-scale intensity of the target frame image in the 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 first storage address, and according to institute
It states the second storage address and searches the second intensity gray scale table, obtain first and overdrive gray-scale intensity；
Sending module is overdrived gray-scale intensity for sending described first.
9. a kind of display equipment, which is characterized in that the device including any determination overdrive voltage of claim 5-8.
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| 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 |
| CN110619813B (en) | 2018-06-20 | 2021-05-14 | 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 |
| WO2019242510A1 (en) | 2018-06-20 | 2019-12-26 | 京东方科技集团股份有限公司 | Display substrate and driving method therefor, 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 |
| 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 |
| CN111243546B (en) * | 2020-03-13 | 2021-07-23 | Tcl华星光电技术有限公司 | Method and system for measuring overdrive voltage, and computer readable storage medium |
| WO2023102996A1 (en) * | 2021-12-07 | 2023-06-15 | 惠州华星光电显示有限公司 | Display driving method, and display |
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