CN109712583A - The method of adjustment of the overdrive table of display device - Google Patents
The method of adjustment of the overdrive table of display device Download PDFInfo
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Abstract
The present invention provides a kind of method of adjustment of the overdrive table of display device.The original gamma curve and practical gamma curve of the method for adjustment measurement display device of the overdrive table of display device of the invention and the mapping relations for obtaining original gray-scale and actual gray, original former frame grayscale each in original overdrive table and each original present frame grayscale are adjusted to the equal original gray-scale mapped actual gray of numerical value and obtain multiple adjustment former frame grayscale and adjustment present frame grayscale, utilize multiple adjustment former frame grayscale, multiple adjustment present frame grayscale and original overdrive table generate multiple adjustment and overdrive grayscale to be adjusted overdrive table, different adjustment overdrive tables can be generated under different actual display modes, promote Dynamically Announce effect of the display device under different actual display modes.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of methods of adjustment of the overdrive table of display device.
Background technique
In field of display technology, the panel display apparatus such as liquid crystal display device (Liquid Crystal Display, LCD)
Gradually replace cathode-ray tube (Cathode Ray Tube, CRT) display device.Liquid crystal display device have fuselage it is thin,
The many merits such as power saving, radiationless, are widely used.
Liquid crystal display device on existing market is largely backlight liquid crystal display device comprising liquid crystal display panel
And backlight module (backlight module).Usual liquid crystal display panel is by color film (Color Filter, CF) substrate, film
Transistor (Thin Film Transistor, TFT) array substrate is sandwiched between color membrane substrates and thin-film transistor array base-plate
Liquid crystal (Liquid Crystal, LC) and sealing glue frame (Sealant) composition.The working principle of liquid crystal display panel is two
Place liquid crystal molecule in the parallel glass substrate of piece, there are many tiny electric wire vertically and horizontally among two panels glass substrate,
Liquid crystal molecule is controlled whether by being powered and changes direction, and the light refraction of backlight module is come out and generates picture.
The principal element for influencing liquid crystal display device dynamic taste is the response time of liquid crystal, the response time of so-called liquid crystal
Refer to the speed that each pixel of liquid crystal display device reacts input signal, i.e., pixel by blackout it is bright or by bright turn it is dark required for
Time, principle is to apply voltage in liquid crystal molecule, make liquid crystal molecule torsion and reply.Reaction time more short then user
The feeling of tail shadow towing is not had more when seeing dynamic menu.
The adjustment of liquid crystal response time is generally realized by overdrive technique.It is so-called to overdrive, it is exactly to work as liquid crystal molecule
The corresponding voltage of dbjective state when being higher than the current voltage of liquid crystal molecule, just apply one and be higher than the voltage of dbjective state to liquid
Brilliant molecule just applies one and is lower than mesh when the corresponding voltage of the liquid crystal molecule dbjective state voltage current lower than liquid crystal molecule
The voltage of mark state is to liquid crystal molecule.Overdrive can make liquid crystal molecule accelerate rotation, so as to shorten liquid crystal molecule response when
Between, as the voltage of application overdrived, then by tabling look-up to obtain, specifically, according to the grayscale value of dbjective state and current shape
The grayscale value inquiry overdrive table of state obtains a grayscale value of overdriving, and the grayscale value of overdriving is opposite with an overdrive voltage
It answers.Existing display device is collocated with System on Chip/SoC (SOC), controls display device by machine core board and enters different display moulds
Formula, under different display patterns, display device can have different brightness curve and chroma curve.And crossing for display device is driven
Dynamic table is adjusted under the idle original dress state of System on Chip/SoC and is obtained generally before factory, controls display dress in System on Chip/SoC
When setting original into different displays, the parameter in original overdrive table be not be optimum value so that dynamic taste changes, hold
It is also easy to produce dynamic to trail or drag color phenomenon, influences the dynamic perception of picture, it is unrestrained if being adjusted again to overdrive table at this time
Take many times, if different overdrive tables is arranged for different display patterns, multiple overdrive tables occupy more deposit
Space is stored up, will increase the cost of display device.
Summary of the invention
The purpose of the present invention is to provide a kind of methods of adjustment of the overdrive table of display device, can be in different reality
Different adjustment overdrive tables is generated under display pattern, promotes Dynamically Announce effect of the display device under different actual display modes
Fruit.
To achieve the above object, the present invention provides a kind of method of adjustment of the overdrive table of display device, including walks as follows
It is rapid:
Step S1, display device is provided；The display device is stored with original overdrive table；The original overdrive table packet
Include multiple original former frame grayscale, multiple original present frame grayscale and multiple original grayscale of overdriving, each original ash of overdriving
Rank is corresponding with the combination of an original former frame grayscale and an original present frame grayscale；
Step S2, display device is set as original display mode, original gal of the measurement display device under original display mode
Horse curve；The original gamma curve indicates that original gray-scale of the display device under original display mode is corresponding with display brightness
Relationship；
Step S3, display device enters actual display mode, practical gal of the measurement display device under actual display mode
Horse curve；The practical gamma curve indicates that actual gray of the display device under actual display mode is corresponding with display brightness
Relationship；
Step S4, it is closed using the mapping that original gamma curve and practical gamma curve obtain original gray-scale and actual gray
System；
Step S5, each original former frame grayscale is adjusted to original gray-scale mapped actual gray equal thereto,
Adjustment former frame grayscale corresponding with multiple original former frame grayscale is obtained, each original present frame grayscale is adjusted to and its phase
Deng original gray-scale mapped actual gray, obtain adjustment present frame grayscale corresponding with multiple original present frame grayscale, benefit
Grayscale of overdriving is adjusted with the generation of multiple adjustment former frame grayscale, multiple adjustment present frame grayscale and original overdrive table is multiple,
Each grayscale of overdriving that adjusts is corresponding with an adjustment former frame grayscale and an adjustment combination for present frame grayscale, is adjusted drive
Dynamic table.
When an adjustment overdrives original former frame grayscale corresponding to the corresponding adjustment former frame grayscale of grayscale equal to the tune
When haveing suffered original present frame grayscale corresponding to the corresponding adjustment present frame grayscale of driving grayscale, adjustment grayscale of overdriving is equal to
Original former frame grayscale corresponding to its corresponding adjustment former frame grayscale and the adjustment overdrive the corresponding adjustment of grayscale at present
The corresponding original grayscale of overdriving of the combination of original present frame grayscale corresponding to frame grayscale, otherwise, which overdrives ash
Rank is equal to the equal original former frame grayscale of corresponding adjustment former frame grayscale and corresponding with adjustment grayscale of overdriving
Adjust the corresponding original grayscale of overdriving of combination of the equal original present frame grayscale of present frame grayscale.
The display device is liquid crystal display device.
The original gamma curve and practical gamma curve pass through normalized.
The step S4 specifically: multiple preset actual gray scales are provided, each actual gray scale is corresponding with a display brightness,
It is shown under original display mode using original gamma curve acquisition display device and is shown respectively with corresponding to multiple actual gray scales
Show corresponding original gray-scale when brightness, using practical gamma curve obtain display device shown under actual display mode respectively with
Corresponding actual gray when display brightness corresponding to multiple actual gray scales, will actual gray corresponding with same actual gray scale and original
Beginning grayscale is mapped, and the mapping relations of original gray-scale and actual gray are obtained.
The corresponding original gray-scale of each actual gray scale is equal.
The corresponding actual gray of maximum display brightness is less than maximum aobvious in original gamma curve in practical gamma curve
Show the corresponding original gray-scale of brightness.
The range of the original gray-scale is 0-255.
The display device includes display panel and is electrically connected System on Chip/SoC with display panel；
In the step S2, System on Chip/SoC is closed, display device is made to be set as original display mode；
In the step S3, System on Chip/SoC is opened, inputs control letter corresponding with actual display mode to System on Chip/SoC
Number control display device enter actual display mode.
The display device further include with display panel be electrically connected sequence controller, the System on Chip/SoC through it is described when
Sequence controller is electrically connected display panel；The original overdrive table is stored in the sequence controller.
Beneficial effects of the present invention: the original of the method for adjustment measurement display device of the overdrive table of display device of the invention
Beginning gamma curve and practical gamma curve and the mapping relations for obtaining original gray-scale and actual gray, will be every in original overdrive table
One original former frame grayscale and each original present frame grayscale are adjusted to the equal original gray-scale mapped actual gray of numerical value
Multiple adjustment former frame grayscale and adjustment present frame grayscale are obtained, multiple adjustment former frame grayscale, multiple adjustment present frames are utilized
Grayscale and original overdrive table generate multiple adjustment and overdrive grayscale to be adjusted overdrive table, can be in different reality
Different adjustment overdrive tables is generated under display pattern, promotes Dynamically Announce effect of the display device under different actual display modes
Fruit.
Detailed description of the invention
For further understanding of the features and technical contents of the present invention, it please refers to below in connection with of the invention detailed
Illustrate and attached drawing, however, the drawings only provide reference and explanation, is not intended to limit the present invention.
In attached drawing,
Fig. 1 is the flow chart of the method for adjustment of the overdrive table of display device of the invention；
Fig. 2 is the schematic diagram of the step S1 of the method for adjustment of the overdrive table of display device of the invention；
Fig. 3 is the schematic diagram of the step S2 of the method for adjustment of the overdrive table of display device of the invention；
Fig. 4 is the schematic diagram of the step S3 of the method for adjustment of the overdrive table of display device of the invention.
Specific embodiment
Further to illustrate technological means and its effect adopted by the present invention, below in conjunction with preferred implementation of the invention
Example and its attached drawing are described in detail.
Referring to Fig. 1, the present invention provides a kind of method of adjustment of the overdrive table of display device, include the following steps:
Step S1, display device is provided.The display device is stored with original overdrive table.The original overdrive table packet
Include multiple original former frame grayscale, multiple original present frame grayscale and multiple original grayscale of overdriving, each original ash of overdriving
Rank is corresponding with the combination of an original former frame grayscale and an original present frame grayscale.
Specifically, referring to Fig. 2, the display device includes display panel 1 and the timing with the electric connection of display panel 1
Controller 2 and the System on Chip/SoC 3 being electrically connected with sequence controller 2.The original overdrive table is stored in the sequence controller 2
In, it overdrives in the case that the original overdrive table is by before display device factory without System on Chip/SoC 3 to display device
Debugging is so that it meets factory level and obtains.
Specifically, the display device is liquid crystal display device.
Specifically, in a preferred embodiment of the invention, the original overdrive table is original shown in table 1 overdrives
Table.
Table 1, original overdrive table
Wherein, grayscale of overdriving corresponding with the combination of original former frame grayscale 0 and original present frame grayscale 0 is 0, with original
The combination of beginning former frame grayscale 32 and original present frame grayscale 0 is corresponding, and grayscale of overdriving is A, with original former frame grayscale 64 and
The corresponding grayscale of overdriving of the combination of original present frame grayscale 0 is B, with original former frame grayscale 0 and original present frame grayscale 32
Combination it is corresponding overdrive grayscale be D, mistake corresponding with the combination of original former frame grayscale 32 and original present frame grayscale 32
Driving grayscale is 32, and grayscale of overdriving corresponding with the combination of original former frame grayscale 64 and original present frame grayscale 32 is C, with
The corresponding grayscale of overdriving of the combination of original former frame grayscale 0 and original present frame grayscale 64 is E, with original former frame grayscale 32
And the corresponding grayscale of overdriving of combination of original present frame grayscale 64 is F, with original former frame grayscale 64 and original present frame ash
The corresponding grayscale of overdriving of the combination of rank 64 is 64.
Step S2, System on Chip/SoC 3 is closed, so that display device is set as original display mode, measurement display device is original
Original gamma curve under display pattern.Referring to Fig. 3, the original gamma curve indicates display device in original display mode
Under original gray-scale and display brightness corresponding relationship.
Specifically, the original gamma curve passes through normalized.
Step S3, System on Chip/SoC 3 is opened, inputs control signal control corresponding with actual display mode to System on Chip/SoC 3
Display device processed enters actual display mode, practical gamma curve of the measurement display device under actual display mode.The reality
Border gamma curve indicates the corresponding relationship of actual gray and display brightness of the display device under actual display mode.
Specifically, the practical gamma curve passes through normalized.
Step S4, it is closed using the mapping that original gamma curve and practical gamma curve obtain original gray-scale and actual gray
System.
Specifically, the step S4 specifically: provide multiple preset actual gray scales, each actual gray scale and a display are bright
Degree corresponds to, and it is right with multiple actual gray scales institutes respectively to be shown under original display mode using original gamma curve acquisition display device
Corresponding original gray-scale when the display brightness answered obtains display device using practical gamma curve and shows under actual display mode
Corresponding actual gray when respectively with display brightness corresponding to multiple actual gray scales, will practical ash corresponding with same actual gray scale
Rank is mapped with original gray-scale, obtains the mapping relations of original gray-scale and actual gray.
Specifically, the corresponding original gray-scale of each actual gray scale is equal.
Specifically, incorporated by reference to Fig. 3 and Fig. 4, the corresponding actual gray of maximum display brightness is less than in practical gamma curve
The corresponding original gray-scale of maximum display brightness in original gamma curve.
Specifically, the range of the original gray-scale is 0-255.
Specifically, the range of the actual gray is 0-255.
Specifically, in a preferred embodiment of invention, the mapping relations of original gray-scale and actual gray such as the following table 2:
The mapping relations of table 2, original gray-scale and actual gray
| Actual gray scale | Original gray-scale | Actual gray |
| 0 | 0 | 0 |
| 32 | 32 | 0 |
| 64 | 64 | 32 |
| …… | …… | …… |
Step S5, each original former frame grayscale is adjusted to original gray-scale mapped actual gray equal thereto,
Adjustment former frame grayscale corresponding with multiple original former frame grayscale is obtained, each original present frame grayscale is adjusted to and its phase
Deng original gray-scale mapped actual gray, obtain adjustment present frame grayscale corresponding with multiple original present frame grayscale, benefit
Grayscale of overdriving is adjusted with the generation of multiple adjustment former frame grayscale, multiple adjustment present frame grayscale and original overdrive table is multiple,
Each grayscale of overdriving that adjusts is corresponding with an adjustment former frame grayscale and an adjustment combination for present frame grayscale, is adjusted drive
Dynamic table.
Specifically, when one adjusts original former frame grayscale corresponding to the corresponding adjustment former frame grayscale of grayscale etc. of overdriving
When original present frame grayscale corresponding to the corresponding adjustment present frame grayscale of grayscale is overdrived in the adjustment, which overdrives ash
Rank is equal to original former frame grayscale and adjustment corresponding to its corresponding adjustment former frame grayscale and overdrives the corresponding tune of grayscale
The corresponding original grayscale of overdriving of the combination of original present frame grayscale corresponding to whole present frame grayscale, otherwise, the adjustment
Driving grayscale is equal to the equal original former frame grayscale of corresponding adjustment former frame grayscale and overdrives grayscale with the adjustment
The corresponding original grayscale of overdriving of combination of the equal original present frame grayscale of corresponding adjustment present frame grayscale.
Specifically, in the preferred embodiment of the present invention, the adjustment overdrive table that the step S5 is obtained is shown in table 3
Adjustment overdrive table.
Table 3, adjustment overdrive table
It should be noted that the method for adjustment measurement display device of the original overdrive table of display device of the invention is being
Original gamma curve when chip 3 of uniting is closed namely under original display mode, and measurement system chip 2 is opened and controls display dress
The practical gamma curve for setting display device when entering actual display mode is obtained using original gamma curve and practical gamma curve
Each original former frame grayscale is then adjusted to original gray-scale equal thereto by the mapping relations of original gray-scale and actual gray
Mapped actual gray obtains adjustment former frame grayscale corresponding with multiple original former frame grayscale, will it is each it is original at present
Frame grayscale is adjusted to original gray-scale mapped actual gray equal thereto, obtains corresponding with multiple original present frame grayscale
Present frame grayscale is adjusted, is generated using multiple adjustment former frame grayscale, multiple adjustment present frame grayscale and original overdrive table more
It is a to adjust grayscale of overdriving, each combination for adjusting overdrive grayscale and an adjustment former frame grayscale and an adjustment present frame grayscale
It is corresponding, when an adjustment overdrives original former frame grayscale corresponding to the corresponding adjustment former frame grayscale of grayscale equal to the adjustment
When driving original present frame grayscale corresponding to the corresponding adjustment present frame grayscale of grayscale, which overdrives, and to be equal to its right for grayscale
Original former frame grayscale corresponding to the adjustment former frame grayscale answered and the adjustment are overdrived grayscale corresponding adjustment present frame ash
The corresponding original grayscale of overdriving of the combination of original present frame grayscale corresponding to rank, otherwise, which overdrives grayscale etc.
It overdrives the corresponding adjustment of grayscale in the equal original former frame grayscale of corresponding adjustment former frame grayscale and with the adjustment
The corresponding original grayscale of overdriving of combination of the equal original present frame grayscale of present frame grayscale, overdrives to be adjusted
Table obtains different adjustment overdrive tables so as to dynamically adjust original overdrive table under different display patterns, with
The display device under different display patterns is overdrived using different adjustment overdrive tables, so that different
Display device can reach optimal dynamic taste under display pattern, meanwhile, it only needs to store an original in sequence controller 2
Beginning overdrive table, space needed for reducing original overdrive table storage, reduces product cost.
In conclusion the original gamma of the method for adjustment measurement display device of the overdrive table of display device of the invention is bent
Line and practical gamma curve and the mapping relations for obtaining original gray-scale and actual gray, by original overdrive table it is each it is original before
One frame grayscale and each original present frame grayscale be adjusted to the equal original gray-scale mapped actual gray of numerical value obtain it is multiple
Former frame grayscale and adjustment present frame grayscale are adjusted, multiple adjustment former frame grayscale, multiple adjustment present frame grayscale and original are utilized
Beginning overdrive table generates multiple adjustment and overdrives grayscale to being adjusted overdrive table, can be in different actual display modes
It is lower to generate different adjustment overdrive tables, promote Dynamically Announce effect of the display device under different actual display modes.
The above for those of ordinary skill in the art can according to the technique and scheme of the present invention and technology
Other various corresponding changes and modifications are made in design, and all these change and modification all should belong to the claims in the present invention
Protection scope.
Claims (10)
1. a kind of method of adjustment of the overdrive table of display device, which comprises the steps of:
Step S1, display device is provided；The display device is stored with original overdrive table；The original overdrive table includes more
A original former frame grayscale, multiple original present frame grayscale and multiple original grayscale of overdriving, it is each it is original overdrive grayscale with
The combination of one original former frame grayscale and an original present frame grayscale is corresponding；
Step S2, display device is set as original display mode, and original gamma of the measurement display device under original display mode is bent
Line；The original gamma curve indicates that original gray-scale of the display device under original display mode is corresponding with display brightness and closes
System；
Step S3, display device enters actual display mode, and practical gamma of the measurement display device under actual display mode is bent
Line；The practical gamma curve indicates that actual gray of the display device under actual display mode is corresponding with display brightness and closes
System；
Step S4, the mapping relations of original gray-scale and actual gray are obtained using original gamma curve and practical gamma curve；
Step S5, each original former frame grayscale is adjusted to original gray-scale mapped actual gray equal thereto, obtained
Adjustment former frame grayscale corresponding with multiple original former frame grayscale, is adjusted to equal thereto for each original present frame grayscale
Original gray-scale mapped actual gray obtains adjustment present frame grayscale corresponding with multiple original present frame grayscale, using more
A adjustment former frame grayscale, multiple adjustment present frame grayscale and original overdrive table generate multiple adjustment and overdrive grayscale, each
It is corresponding with an adjustment former frame grayscale and an adjustment combination for present frame grayscale to adjust grayscale of overdriving, is adjusted and overdrives
Table.
2. the method for adjustment of the overdrive table of display device as described in claim 1, which is characterized in that when an adjustment is overdrived
Original former frame grayscale corresponding to the corresponding adjustment former frame grayscale of grayscale is equal to the adjustment and overdrives the corresponding adjustment of grayscale
Corresponding to present frame grayscale when original present frame grayscale, which overdrives grayscale equal to its corresponding adjustment former frame grayscale
Corresponding original former frame grayscale and the adjustment are overdrived original current corresponding to the corresponding adjustment present frame grayscale of grayscale
The corresponding original grayscale of overdriving of the combination of frame grayscale, otherwise, the adjustment overdrive grayscale equal to before corresponding adjustment
It the equal original former frame grayscale of one frame grayscale and overdrives the equal original of the corresponding adjustment present frame grayscale of grayscale with the adjustment
The corresponding original grayscale of overdriving of the combination of beginning present frame grayscale.
3. the method for adjustment of the overdrive table of display device as described in claim 1, which is characterized in that the display device is
Liquid crystal display device.
4. the method for adjustment of the overdrive table of display device as described in claim 1, which is characterized in that the original gamma is bent
Line and practical gamma curve pass through normalized.
5. the method for adjustment of the overdrive table of display device as described in claim 1, which is characterized in that the step S4 is specific
Are as follows: multiple preset actual gray scales are provided, each actual gray scale is corresponding with a display brightness, obtains using original gamma curve aobvious
Showing device corresponding original gray-scale when being shown under original display mode respectively with display brightness corresponding to multiple actual gray scales,
It is shown under actual display mode using practical gamma curve acquisition display device and is shown respectively with corresponding to multiple actual gray scales
Show corresponding actual gray when brightness, actual gray corresponding with same actual gray scale is mapped with original gray-scale, obtains original
The mapping relations of beginning grayscale and actual gray.
6. the method for adjustment of the overdrive table of display device as claimed in claim 5, which is characterized in that each actual gray scale with
Its corresponding original gray-scale is equal.
7. the method for adjustment of the overdrive table of display device as described in claim 1, which is characterized in that in practical gamma curve
The corresponding actual gray of maximum display brightness is less than the corresponding original gray-scale of maximum display brightness in original gamma curve.
8. the method for adjustment of the overdrive table of display device as described in claim 1, which is characterized in that the original gray-scale
Range is 0-255.
9. the method for adjustment of the overdrive table of display device as described in claim 1, which is characterized in that the display device packet
It includes display panel and is electrically connected System on Chip/SoC with display panel；
In the step S2, System on Chip/SoC is closed, display device is made to be set as original display mode；
In the step S3, System on Chip/SoC is opened, inputs control signal control corresponding with actual display mode to System on Chip/SoC
Display device processed enters actual display mode.
10. the method for adjustment of the overdrive table of display device as claimed in claim 9, which is characterized in that the display device
It further include the sequence controller being electrically connected with display panel, the System on Chip/SoC is electrically connected through the sequence controller and shows
Panel；The original overdrive table is stored in the sequence controller.
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| WO2021017028A1 (en) * | 2019-07-30 | 2021-02-04 | Tcl华星光电技术有限公司 | Lod table adjustment method and system |
| CN113452872A (en) * | 2020-03-10 | 2021-09-28 | 瑞昱半导体股份有限公司 | Processor and display method |
| EP3952310A1 (en) * | 2020-08-07 | 2022-02-09 | Samsung Display Co., Ltd. | Dpcm codec with higher reconstruction quality on important gray levels |
| EP3952309A1 (en) * | 2020-08-07 | 2022-02-09 | Samsung Display Co., Ltd. | Compression with positive reconstruction error |
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