CN109119033A - Backlight compensation method, equipment, system and storage medium - Google Patents
Backlight compensation method, equipment, system and storage medium Download PDFInfo
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- CN109119033A CN109119033A CN201811210458.4A CN201811210458A CN109119033A CN 109119033 A CN109119033 A CN 109119033A CN 201811210458 A CN201811210458 A CN 201811210458A CN 109119033 A CN109119033 A CN 109119033A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
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Abstract
The invention discloses a kind of backlight compensation method, equipment, system and storage mediums, this method comprises: obtaining the location information for working as headlight area, and determine the divisional type for working as headlight area according to the positional information；The backlight brightness values in the adjacent lamps area for working as headlight area are obtained with the divisional type according to the positional information；Based on predetermined luminance backoff algorithm and described when the compensation backlight brightness values for working as headlight area are calculated in the backlight brightness values in the adjacent lamps area in headlight area；Based on the compensation backlight brightness values, to described when headlight area carries out backlight compensation.The present invention realizes the phenomenon that carrying out backlight compensation by the bright block automatically to dark area, improving uneven luminance.
Description
Technical field
The present invention relates to liquid crystal display technical field more particularly to a kind of backlight compensation method, equipment, system and storages
Medium.
Background technique
With the development of science and technology and continuous improvement of people's living standards, liquid crystal display is due to lower with power consumption, again
Amount is relatively light, color hands over the reasons such as gorgeous, has become the mainstream technology of FPD, is widely used in our daily
In the electronic product of consumption.Since liquid crystal display itself can't shine, need that a kind of backlight is installed after liquid crystal display panel,
The effect of video image is adjusted, by the probability through light of liquid crystal cells again to reach the figure for thinking dynamic scene to be shown
Picture.
But current most of television sets with Local Dimming (local backlight adjusting) technology, Local
Dimming algorithm is to provide support by SOC (System-on-a-Chip main control chip) supplier or third party, and solidify not
Easily update.Certain scene Local Dimming algorithms in TV programme can not be well adapted for, such as similar in dark
The bright block moved under the dark backgrounds such as the torch of middle movement, will appear when mobile it is suddenly bright neglect dark phenomenon, and front and rear side along by
, also can be very unintelligible in backlight deficiency, especially when backlight subarea number is less, since lamp is away from larger, it can seem and become apparent.
When bright block moves on backlight position, bright block is brighter, and when being moved between two lamps, bright block is darker, mobile speed
Faster, variation is more obvious.This is because caused by backlight always has the delay in a field synchronization (VSYNC vertical synchronization) period.
Summary of the invention
The main purpose of the present invention is to provide a kind of backlight compensation method, equipment, system and storage mediums, it is intended to realize
The phenomenon that carrying out backlight compensation by the bright block automatically to dark area, improve uneven luminance.
To achieve the above object, the present invention provides a kind of backlight compensation method, and the backlight compensation method is applied to display
Equipment, the display equipment are provided with multiple lamp areas, the backlight compensation method the following steps are included:
The location information for working as headlight area is obtained, and determines the divisional type for working as headlight area according to the positional information；
The backlight brightness values in the adjacent lamps area for working as headlight area are obtained with the divisional type according to the positional information；
Based on predetermined luminance backoff algorithm and it is described when the backlight brightness values in the adjacent lamps area in headlight area be calculated it is described
When the compensation backlight brightness values in headlight area；
Based on the compensation backlight brightness values, to described when headlight area carries out backlight compensation.
Optionally, it when the divisional type is angle subregion, sets in the angle area subregion range Nei Deng there are three adjacent lamps
Area, the backlight brightness values for obtaining the adjacent lamps area for working as headlight area with lamp area type according to the positional information
Step includes:
Three adjacent lamps areas when headlight area within the scope of the angle subregion are obtained according to the positional information
Backlight brightness values；
It is described based on predetermined luminance backoff algorithm and described when the backlight brightness values in the adjacent lamps area in headlight area are calculated
It is described to include: when the step of compensation backlight brightness values in headlight area
The angle average value for calculating the backlight brightness values in three adjacent lamps areas, as angle subregion average value；
The angle subregion average value is multiplied with predetermined luminance penalty coefficient, is obtained described when the compensation backlight in headlight area is bright
Angle value.
Optionally, it when the divisional type is side subregion, sets in the side area subregion range Nei Deng there are five adjacent lamps
Area, the backlight brightness values for obtaining the adjacent lamps area for working as headlight area with lamp area type according to the positional information
Step includes:
Five adjacent lamps areas when headlight area within the scope of the side subregion are obtained according to the positional information
Backlight brightness values；
It is described based on predetermined luminance backoff algorithm and described when the backlight brightness values in the adjacent lamps area in headlight area are calculated
It is described to include: when the step of compensation backlight brightness values in headlight area
The average value for calculating the backlight brightness values in five adjacent lamps areas, as side subregion average value；
The side subregion average value is multiplied with predetermined luminance penalty coefficient, is obtained described when the compensation backlight in headlight area is bright
Angle value.
Optionally, when lamp area type is intermediate partition, eight phases are equipped in the area intermediate partition range Nei Deng
The area Lin Deng, the backlight illumination for obtaining the adjacent lamps area for working as headlight area with lamp area type according to the positional information
The step of value includes:
Eight adjacent lamps when headlight area within the scope of the intermediate partition are obtained according to the positional information
The backlight brightness values in area；
It is described based on predetermined luminance backoff algorithm and described when the backlight brightness values in the adjacent lamps area in headlight area are calculated
It is described to include: when the step of compensation backlight brightness values in headlight area
The average value for calculating the backlight brightness values in eight adjacent lamps areas, as intermediate partition average value；
The intermediate partition average value is multiplied with predetermined luminance penalty coefficient, obtains the compensation backlight for working as headlight area
Brightness value.
Optionally, the location information in headlight area is worked as in the acquisition, and determines the lamp in the lamp area according to the positional information
Before the step of area's type further include:
Obtain the backlight brightness values for working as headlight area；
Judge whether the backlight brightness values are less than default backlight illumination threshold value；
If the backlight brightness values are less than default backlight illumination threshold value, then follow the steps: obtaining the position for working as headlight area
Information, and the divisional type for working as headlight area is determined according to the positional information.
Optionally, described to be based on the compensation backlight brightness values, work as the step of headlight area carries out backlight compensation packet to described
It includes:
By described when the backlight brightness values in headlight area are added with the compensation backlight brightness values, amendment backlight illumination is obtained
Value；
Control is described when headlight area is exported by the amendment backlight brightness values.
The present invention also provides a kind of display equipment, which includes data obtaining module, luminance acquisition module, calculates
Module and compensating module, in which:
Data obtaining module obtains the location information for working as headlight area, and works as headlight described in determination according to the positional information
The divisional type in area；
Luminance acquisition module obtains the adjacent lamps area for working as headlight area with the divisional type according to the positional information
Backlight brightness values；
Computing module, the backlight brightness values based on predetermined luminance backoff algorithm and the adjacent lamps area when headlight area calculate
Obtain the compensation backlight brightness values for working as headlight area；
Compensating module is based on the compensation backlight brightness values, to described when headlight area carries out backlight compensation.
In addition, to achieve the above object, the present invention also provides a kind of backlight compensation system, the backlight compensation system packet
It includes: memory, processor and being stored in the backlight compensation program that can be run on the memory and on the processor, it is described
The step of backlight compensation program realizes backlight compensation method as described above when being executed by the processor.
In addition, to achieve the above object, the present invention also provides a kind of storage medium, being stored with backlight on the storage medium
The step of compensation program, the backlight compensation program realizes backlight compensation method as described above when being executed by processor.
Backlight compensation method, equipment, system and storage medium proposed by the present invention, by obtaining the position letter when headlight area
Breath, and the divisional type for working as headlight area is determined according to the positional information；According to the positional information with the subregion class
Type obtains the backlight brightness values in the adjacent lamps area for working as headlight area；Based on predetermined luminance backoff algorithm and described when headlight area
The compensation backlight brightness values for working as headlight area are calculated in the backlight brightness values in adjacent lamps area；Based on the compensation backlight illumination
Value, to described when headlight area carries out backlight compensation.The present invention, which is realized, carries out backlight benefit by the bright block automatically to dark area
The phenomenon that repaying, improving uneven luminance.
Detailed description of the invention
Fig. 1 is the terminal structure schematic diagram for the hardware running environment that the embodiment of the present invention is related to；
Fig. 2 is display device functions module diagram of the invention；
Fig. 3 is the flow diagram of backlight compensation method first embodiment of the present invention；
Fig. 4 is the flow diagram of backlight compensation method second embodiment of the present invention；
Fig. 5 is the flow diagram of backlight compensation method 3rd embodiment of the present invention；
Fig. 6 is the flow diagram of backlight compensation method fourth embodiment of the present invention；
Fig. 7 is the flow diagram of the 5th embodiment of backlight compensation method of the present invention.
The object of the invention is realized, the embodiments will be further described with reference to the accompanying drawings for functional characteristics and advantage.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The primary solutions of the embodiment of the present invention are: obtaining the location information for working as headlight area, and believed according to the position
Breath determines the divisional type for working as headlight area；When headlight area described in being obtained according to the positional information with the divisional type
The backlight brightness values in adjacent lamps area；Backlight brightness values based on predetermined luminance backoff algorithm and the adjacent lamps area when headlight area
The compensation backlight brightness values for working as headlight area are calculated；Based on the compensation backlight brightness values, to it is described when headlight area into
Row backlight compensation.The present invention, which is realized, carries out backlight compensation by the bright block automatically to dark area, improves showing for uneven luminance
As.
Due to most of television sets with Local Dimming (local backlight adjusting) technology in the prior art,
Local Dimming algorithm be support is provided by SOC (System-on-a-Chip main control chip) supplier or third party, and
Solidification is not easy to update.Certain scene Local Dimming algorithms in TV programme can not be well adapted for, such as similar to
The bright block moved under the dark backgrounds such as the torch moved in the dark will appear suddenly bright suddenly dark phenomenon, and front and back when mobile
Edge, also can be very unintelligible due to backlight deficiency, especially when backlight subarea number is less, since lamp is away from larger, can seem more
It is obvious.When bright block moves on backlight position, bright block is brighter, and when being moved between two lamps, bright block is darker, mobile
Speed it is faster, variation is more obvious.This is because backlight always has the delay in a field synchronization (VSYNC vertical synchronization) period to make
At.
The embodiment of the present invention proposes a solution, may be implemented to carry out backlight benefit to the bright block of dark area automatically
It repays.
As shown in Figure 1, Fig. 1 is the terminal structure schematic diagram for the hardware running environment that the embodiment of the present invention is related to.
The terminal of that embodiment of the invention is display equipment.
As shown in Figure 1, the terminal may include: processor 1001, such as CPU, network interface 1004, user interface
1003, memory 1005, communication bus 1002.Wherein, communication bus 1002 is for realizing the connection communication between these components.
User interface 1003 may include display screen (Display), input unit such as keyboard (Keyboard), optional user interface
1003 can also include standard wireline interface and wireless interface.Network interface 1004 optionally may include that the wired of standard connects
Mouth, wireless interface (such as WI-FI interface).Memory 1005 can be high speed RAM memory, be also possible to stable memory
(non-volatile memory), such as magnetic disk storage.Memory 1005 optionally can also be independently of aforementioned processor
1001 storage device.
Optionally, terminal can also include camera, RF (Radio Frequency, radio frequency) circuit, sensor, audio
Circuit, WiFi module etc..Wherein, sensor such as optical sensor, motion sensor and other sensors.Specifically, light
Sensor may include ambient light sensor and proximity sensor, wherein ambient light sensor can according to the light and shade of ambient light come
The brightness of display screen is adjusted, proximity sensor can close display screen and/or backlight when terminal device is moved in one's ear.Certainly,
Terminal can also configure the other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor, no longer superfluous herein
It states.
It will be understood by those skilled in the art that the restriction of the not structure paired terminal of terminal structure shown in Fig. 1, can wrap
It includes than illustrating more or fewer components, perhaps combines certain components or different component layouts.
As shown in Figure 1, as may include that operating terminal, network are logical in a kind of memory 1005 of computer storage medium
Believe module, Subscriber Interface Module SIM and backlight compensation program.
In terminal shown in Fig. 1, network interface 1004 is mainly used for connecting background server, carries out with background server
Data communication；User interface 1003 is mainly used for connecting client (user terminal), carries out data communication with client；And processor
1001 can be used for calling the backlight compensation program stored in memory 1005, and execute following operation:
The location information for working as headlight area is obtained, and determines the divisional type for working as headlight area according to the positional information；
The backlight brightness values in the adjacent lamps area for working as headlight area are obtained with the divisional type according to the positional information；
Based on predetermined luminance backoff algorithm and it is described when the backlight brightness values in the adjacent lamps area in headlight area be calculated it is described
When the compensation backlight brightness values in headlight area；
Based on the compensation backlight brightness values, to described when headlight area carries out backlight compensation.
Further, processor 1001 can call the backlight compensation program stored in memory 1005, also execute following
Operation:
Three adjacent lamps areas when headlight area within the scope of the angle subregion are obtained according to the positional information
Backlight brightness values；
It is described based on predetermined luminance backoff algorithm and described when the backlight brightness values in the adjacent lamps area in headlight area are calculated
It is described to include: when the step of compensation backlight brightness values in headlight area
The angle average value for calculating the backlight brightness values in three adjacent lamps areas, as angle subregion average value；
The angle subregion average value is multiplied with predetermined luminance penalty coefficient, is obtained described when the compensation backlight in headlight area is bright
Angle value.
Further, processor 1001 can call the backlight compensation program stored in memory 1005, also execute following
Operation:
Five adjacent lamps areas when headlight area within the scope of the side subregion are obtained according to the positional information
Backlight brightness values；
The average value for calculating the backlight brightness values in five adjacent lamps areas, as side subregion average value；
The side subregion average value is multiplied with predetermined luminance penalty coefficient, is obtained described when the compensation backlight in headlight area is bright
Angle value.
Further, processor 1001 can call the backlight compensation program stored in memory 1005, also execute following
Operation:
Eight adjacent lamps when headlight area within the scope of the intermediate partition are obtained according to the positional information
The backlight brightness values in area；
The average value for calculating the backlight brightness values in eight adjacent lamps areas, as intermediate partition average value；
The intermediate partition average value is multiplied with predetermined luminance penalty coefficient, obtains the compensation backlight for working as headlight area
Brightness value.
Further, processor 1001 can call the backlight compensation program stored in memory 1005, also execute following
Operation:
Obtain the backlight brightness values for working as headlight area；
Judge whether the backlight brightness values are less than default backlight illumination threshold value；
If the backlight brightness values are less than default backlight illumination threshold value, then follow the steps: obtaining the position for working as headlight area
Information, and the divisional type for working as headlight area is determined according to the positional information.
Further, processor 1001 can call the backlight compensation program stored in memory 1005, also execute following
Operation:
By described when the backlight brightness values in headlight area are added with the compensation backlight brightness values, amendment backlight illumination is obtained
Value；
Control is described when headlight area is exported by the amendment backlight brightness values.
Technical solution provided by the invention, the backlight compensation terminal are called in memory 1005 by processor 1001 and are deposited
The backlight compensation program of storage, to realize step: obtaining the location information for working as headlight area, and described in determining according to the positional information
When the divisional type in headlight area；The adjacent lamps area for working as headlight area is obtained with the divisional type according to the positional information
Backlight brightness values；Based on predetermined luminance backoff algorithm and described when institute is calculated in the backlight brightness values in the adjacent lamps area in headlight area
State the compensation backlight brightness values when headlight area；Based on the compensation backlight brightness values, to described when headlight area carries out backlight compensation.
The present invention realizes the phenomenon that carrying out backlight compensation by the bright block automatically to dark area, improving uneven luminance.
Fig. 2 is participated in, Fig. 2 is display device functions module diagram of the invention.
The present invention also provides a kind of display equipment, the display equipment includes:
Data obtaining module 10 obtains the location information for working as headlight area, and determines according to the positional information described current
The divisional type in lamp area；
Luminance acquisition module 20 obtains the adjacent lamps for working as headlight area with the divisional type according to the positional information
The backlight brightness values in area；
Computing module 30, by predetermined luminance backoff algorithm and described based on the backlight brightness values in the adjacent lamps area in headlight area
It calculates and obtains the compensation backlight brightness values for working as headlight area；
Compensating module 40 is based on the compensation backlight brightness values, to described when headlight area carries out backlight compensation.
It is no longer superfluous herein the invention shows equipment specific embodiment and each embodiment of backlight compensation method are essentially identical
It states.
The present invention provides a kind of storage medium, the storage medium is stored with one or more than one program, described
One or more than one program can also be executed by one or more than one processor for realizing any of the above-described institute
The step of backlight compensation method stated.
Storage medium specific embodiment of the present invention and each embodiment of backlight compensation method are essentially identical, no longer superfluous herein
It states.
Based on above-mentioned hardware configuration, backlight compensation method embodiment of the present invention is proposed.
It is the flow diagram of backlight compensation method first embodiment of the present invention referring to Fig. 3, Fig. 3.
As shown in figure 3, first embodiment of the invention provides a kind of backlight compensation method, the backlight compensation method is applied to
Show equipment, the display equipment is provided with multiple lamp areas, the backlight compensation method the following steps are included:
Step S1 obtains the location information for working as headlight area, and determines point when headlight area according to the positional information
Area's type；
It is understood that backlight compensation method proposed by the present invention, is suitable for liquid crystal display technical field.
In the present embodiment, the backlight subarea of display screen is divided to the lamp area of corresponding number according to the quantity of light source, each
Lamp area corresponds to a light source, and backlight subarea is divided into different types of subregion according to the location of lamp area, is angle point respectively
Area, side subregion and intermediate partition, each type of subregion include multiple lamp areas.
Display equipment obtains the backlight brightness values in all lamp areas from main control chip, successively does brightness threshold to each lamp area and sentences
It is disconnected, if wherein the backlight brightness values in some lamp area are more than or equal to default backlight illumination threshold value, without to the lamp area into
The compensation of row backlight illumination, if but wherein the backlight brightness values in some lamp area are less than default backlight illumination threshold value, it needs to this
Lamp area carries out backlight illumination compensation.
Specifically, backlight illumination compensation, data obtaining module are carried out to the lamp area for being less than default backlight illumination threshold value
The location information for obtaining the lamp area for being less than default backlight illumination threshold value one by one is first had to, and true according to the location information in the lamp area
Determine the divisional type belonging to it.
Step S2 obtains the backlight in the adjacent lamps area of lamp area with the lamp area type in the lamp area according to the positional information
Brightness value；
The location information for being less than the lamp area of default backlight illumination threshold value is got in data obtaining module, and according to the lamp
After the location information in area determines the divisional type belonging to it, location information and the lamp area of the luminance acquisition module according to the lamp area
Divisional type obtain and the backlight brightness values in the adjacent lamps area of lamp area.
When divisional type in the lamp area is angle subregion, angle subregion is located at four angles of backlight subarea, and there are four lamps altogether
Area is upper left corner lamp area, upper right corner lamp area, lower-left corner lamp area and bottom right corner lamp area respectively.Due within the scope of the subregion of angle
There are three adjacent different lamp areas in each of four areas Ge Deng, therefore need specifically to be determined that it is according to the more specific location information in the lamp area
Lamp area of which of corner lamp area, then obtain the backlight brightness values in three areas Ge Deng adjacent thereto.
When divisional type in the lamp area is side subregion, side subregion is located at the four edges of backlight subarea, but does not include being in
Corner lamp area on the side, side subregion include left partition, right partition, top margin subregion and bottom edge subregion.Due to being in side subregion
There are five adjacent different lamp areas in each lamp area in four side subregions in range, therefore need the specific position according to the lamp area
Confidence breath specifically determines that it is lamp area of which of cowl lamp area, then obtains the backlight brightness values in five areas Ge Deng adjacent thereto.
When divisional type in the lamp area is intermediate partition, intermediate partition is located at the centre of backlight subarea, for except beveling point
All lamp areas outside area and side subregion.Since there are eight adjacent different lamps in each lamp area within the scope of intermediate partition
Area, therefore need specifically to determine that it is lamp area of which of cowl lamp area according to the more specific location information in the lamp area, then obtain therewith
The backlight brightness values in the eight adjacent areas Ge Deng.
Bright block includes one or more lamp area, and bright block also may include multiple subregions.
Step S3, based on predetermined luminance backoff algorithm and described when the backlight brightness values in the adjacent lamps area in headlight area calculate
To the compensation backlight brightness values when headlight area；
It gets in luminance acquisition module with after the backlight brightness values in the adjacent lamps area of lamp area, is compensated and calculated using predetermined luminance
Method calculates the backlight brightness values in adjacent lamps area, obtains the compensation backlight brightness values in the lamp area.
Specifically, luminance acquisition module get with after the backlight brightness values in the adjacent lamps area of lamp area, computing module meter
The average value for calculating the backlight brightness values in adjacent lamps area, obtained average value is multiplied with predetermined luminance penalty coefficient, obtains the lamp
The compensation backlight brightness values in area.
Wherein, predetermined luminance penalty coefficient is greater than zero and less than or equal to one.
Step S4 is based on the compensation backlight brightness values, to described when headlight area carries out backlight compensation.
After computing module obtains to the compensation backlight brightness values in the lamp area, compensating module is based on the compensation backlight brightness values
Backlight compensation is carried out to when headlight area.
Specifically, after computing module obtains to the compensation backlight brightness values in the lamp area, compensating module is by the back in the lamp area
Brightness values are superimposed with the compensation backlight brightness values, obtain revised backlight brightness values, then control lamp area output and amendment
The light of the corresponding brightness of backlight brightness values afterwards.
The above divisional type and partitioned mode are only presently preferred embodiments of the present invention, are not intended to limit the invention, this hair
It is bright subregion to be carried out to backlight by other means, however it is not limited to which that backlight subarea is divided into the side of three subregions by the present invention
The number of formula, the adjacent lamps area obtained when averaging of the invention is also not necessarily limited to three adjacent lamps areas, the cowl lamp area in corner lamp area
Five adjacent lamps areas, intermediate lamp area eight adjacent lamps areas, corner lamp area can also obtain 1 or 2 or multiple adjacent lamps areas
Backlight brightness values, cowl lamp area can also obtain the backlight brightness values in 1,2,3,4 or multiple adjacent lamps areas, and intermediate lamp area can be with
Obtain 1~7 adjacent lamps area or multiple backlight brightness values.All any modifications within spirit of the present invention are equally replaced
It changes and improves, should be included within the scope of the present invention.
The backlight compensation method proposed through this embodiment realizes and carries out backlight by the bright block automatically to dark area
The phenomenon that compensation, improvement uneven luminance.
Further, as shown in figure 4, being based on above-mentioned first embodiment shown in Fig. 3, backlight compensation method of the present invention is proposed
Second embodiment when the divisional type is angle subregion, is equipped with three in the angle subregion area range Nei Deng in the present embodiment
A adjacent lamps area, the backlight for obtaining the adjacent lamps area for working as headlight area with lamp area type according to the positional information
The step of brightness value includes:
Step S21 obtains three when headlight area within the scope of the angle subregion according to the positional information
The backlight brightness values in adjacent lamps area；
Backlight subarea is divided into three kinds of different types of subregions according to the location of lamp area, is angle subregion, side respectively
Subregion and intermediate partition, each type of subregion include multiple lamp areas.
When divisional type in the lamp area locating for the headlight area is angle subregion, angle subregion is located at four angles of backlight subarea, and one
There are four lamp areas altogether, are upper left corner lamp area, upper right corner lamp area, lower-left corner lamp area and bottom right corner lamp area respectively.Due in angle point
There are three adjacent different lamp areas in each of four areas Ge Deng within the scope of area, therefore need to be had according to the more specific location information in the lamp area
Body determines that it is lamp area of which of corner lamp area, then obtains the backlight brightness values in three areas Ge Deng adjacent thereto.
Such as: a coordinate system is established if entire backlight subarea, if backlight subarea is ROWS row * COLUMNS column, then 4
Coordinate number in the area Ge Jiaodeng is upper left corner S (0,0), upper right corner S (0, COLUMNS-1), lower left corner S (ROWS-1,0), bottom right
Angle S (ROWS-1, COLUMNS-1), wherein adjacent 3 lamps of each lamp, upper left corner adjacent lamps coordinate is respectively (0,1) S, S (1,
0), (1,1) S, upper right corner adjacent lamps coordinate are respectively (0, COLUMNS-2) S, S (1, COLUMNS-2), S (1, COLUMNS-1),
Lower left corner adjacent lamps coordinate is respectively S (ROWS-1,1), S (ROWS-2,0), S (ROWS-2,1), lower right corner adjacent lamps coordinate point
Not Wei S (ROWS-1, COLUMNS-2), S (ROWS-2, COLUMNS-2), S (ROWS-2, COLUMNS-1), if work as headlight position
In in the corner lamp area of upper left, then its coordinate is S (0,0), and the backlight brightness values in three adjacent lamps areas are respectively (S (0,1)) L, L (S
(1,0)), L (S (1,1)), if coordinate is S (0, COLUMNS-1), and three are adjacent when headlight area is located in upper right corner lamp area
The backlight brightness values in lamp area are respectively (S (0, COLUMNS-2)) L, L (S (1, COLUMNS-2)), L (S (1, COLUMNS-1)),
If coordinate is S (ROWS-1,0), the backlight brightness values difference in three adjacent lamps areas when headlight area is located in the corner lamp area of lower-left
For L (S (ROWS-1,1)), L (S (ROWS-2,0)), L (S (ROWS-2,1)), it is located in the corner lamp area of bottom right if working as headlight area,
Its coordinate is S (ROWS-1, COLUMNS-1), and the backlight brightness values in three adjacent lamps areas are respectively L (S (ROWS-1, COLUMNS-
2)), L (S (ROWS-2, COLUMNS-2)), L (S (ROWS-2, COLUMNS-1)).
Further, described based on predetermined luminance backoff algorithm and the backlight brightness values in the adjacent lamps area when headlight area
Include: when the step of compensation backlight brightness values in headlight area described in being calculated
Step S31 calculates the angle average value of the backlight brightness values in three adjacent lamps areas, as angle subregion average value；
Such as: if when headlight area is located in the corner lamp area of upper left, average value=((L of the backlight brightness values in three adjacent lamps areas
(S (0,1))+L (S (1,0))+L (S (1,1)))/3；If when headlight area is located in upper right corner lamp area, the backlight in three adjacent lamps areas
The average value of brightness value=((L (S (0, COLUMNS-2))+L (S (1, COLUMNS-2))+L (S (1, COLUMNS-1)))/3；If
When headlight area is located in the corner lamp area of lower-left, average value=((L (S (ROWS-1,1))+L of the backlight brightness values in three adjacent lamps areas
(S (ROWS-2,0))+L (S (ROWS-2,1)))/3；If when headlight area is located in the corner lamp area of bottom right, the backlight in three adjacent lamps areas
The average value of brightness value=((L (S (ROWS-2, COLUMNS-2))+L (S (ROWS-1, COLUMNS-2))+L (S (ROWS-2,
COLUMNS-1)))/3。
The average value is multiplied by step S32 with predetermined luminance penalty coefficient, obtains the compensation backlight for working as headlight area
Brightness value.
The average value of the backlight brightness values in three adjacent lamps areas is multiplied with predetermined luminance penalty coefficient K, this can be obtained
The compensation backlight brightness values in lamp area.
Such as: the compensation backlight brightness values L (S (0,0)) in upper left corner lamp area=((L (S (0,1))+L (S (1,0))+L (S
(1,1)))/3) * K；The compensation backlight brightness values L (S (0, COLUMNS-1)) in upper right corner lamp area=((L (S (0, COLUMNS-2))
+ L (S (1, COLUMNS-2))+L (S (1, COLUMNS-1)))/3) * K；The compensation backlight brightness values L (S in lower-left corner lamp area
(ROWS-1,0))=((L (S (ROWS-1,1))+L (S (ROWS-2,0))+L (S (ROWS-2,1)))/3) * K；Upper right corner lamp area
Compensation backlight brightness values L (S (ROWS-1, COLUMNS-1))=((L (S (ROWS-2, COLUMNS-2))+L (S (ROWS-1,
COLUMNS-2))+L (S (ROWS-2, COLUMNS-1)))/3) * K.
The backlight compensation method proposed through this embodiment realizes three phases by obtaining the area angle subregion range Nei Deng
The compensation backlight brightness values in the angle area subregion range Nei Deng are calculated in the backlight brightness values in the area Lin Deng.
Further, as shown in figure 5, being based on above-mentioned first embodiment shown in Fig. 3, backlight compensation method of the present invention is proposed
3rd embodiment when the divisional type is side subregion, is equipped with five in the side subregion area range Nei Deng in the present embodiment
A adjacent lamps area, the backlight for obtaining the adjacent lamps area for working as headlight area with lamp area type according to the positional information
The step of brightness value includes:
Step S22 obtains five when headlight area within the scope of the side subregion according to the positional information
The backlight brightness values in adjacent lamps area；
When divisional type in the lamp area locating for the headlight area is side subregion, side subregion is located at the four edges of backlight subarea, but
It does not include the corner lamp area on the side, side subregion includes left partition, right partition, top margin subregion and bottom edge subregion.Due to
There are five adjacent different lamp areas in each lamp area when in four within the scope of subregion in subregion, therefore need according to the lamp
The more specific location information in area specifically determines that it is lamp area of which of cowl lamp area, then obtains the back in five areas Ge Deng adjacent thereto
Brightness values.
Such as: top margin subregion coordinate number are as follows: S (0,1) to S (0, COLUMNS-2) has 5 adjacent lamps areas, if top margin point
It is integer that the coordinate number in any lamp area, which is (0, j) S, 0 < j < COLUMNS-1, and j, in area, then the backlight in lamp area adjacent thereto is bright
Angle value is followed successively by L (S (0, j-1)), L (S (0, j+1)), L (S (1, j-1)), L (S (1, j)), L (S (1, j+1)).
Left partition, right partition and bottom edge subregion are similar with top margin subregion, and details are not described herein.
Further, described based on predetermined luminance backoff algorithm and the backlight brightness values in the adjacent lamps area when headlight area
Include: when the step of compensation backlight brightness values in headlight area described in being calculated
Step S33 calculates the average value of the backlight brightness values in five adjacent lamps areas, as side subregion average value；
Such as: if when headlight area is located in top margin subregion, average value=((L (S of the backlight brightness values in five adjacent lamps areas
(0, j-1))+L (S (0, j+1))+L (S (1, j-1))+L (S (1, j)+) L (S (1, j+1))))/5.
The average value is multiplied by step S34 with predetermined luminance penalty coefficient, obtains the compensation backlight for working as headlight area
Brightness value.
The average value of the backlight brightness values in five adjacent lamps areas is multiplied with predetermined luminance penalty coefficient K, this can be obtained
The compensation backlight brightness values in lamp area.
Such as: L (S (0, j))=((L (S (0, j-1))+L (S (0, j+1))+L (S (1, j-1))+L (S (1, j)+) L (S
(1, j+1)))/5) * K.
The backlight compensation method proposed through this embodiment realizes five phases by obtaining the area side subregion range Nei Deng
The compensation backlight brightness values in the side area subregion range Nei Deng are calculated in the backlight brightness values in the area Lin Deng.
Further, as shown in fig. 6, being based on above-mentioned first embodiment shown in Fig. 3, backlight compensation method of the present invention is proposed
Fourth embodiment when lamp area type is intermediate partition, is in the area intermediate partition range Nei Deng in the present embodiment
It is described to obtain the adjacent lamps area for working as headlight area with lamp area type according to the positional information equipped with eight adjacent lamps areas
Backlight brightness values the step of include:
Step S23 is obtained described when the eight of headlight area within the scope of the intermediate partition according to the positional information
The backlight brightness values in a adjacent lamps area；
When divisional type in the lamp area is intermediate partition, intermediate partition is located at the centre of backlight subarea, for except beveling point
All lamp areas outside area and side subregion.Since there are eight adjacent different lamps in each lamp area within the scope of intermediate partition
Area, therefore need specifically to determine that it is lamp area of which of cowl lamp area according to the more specific location information in the lamp area, then obtain therewith
The backlight brightness values in the eight adjacent areas Ge Deng.
Such as: intermediate lamp area coordinate number are as follows: S (i, j), 1 < i < ROWS-2,1 < j < COLUMNS-2, and i and j are whole
Number, has 8 adjacent lamps areas, if centre any lamp area coordinate number S (i, j), 1 < i < ROWS-2,1 < j < COLUMNS-2, then therewith
The backlight brightness values in adjacent lamps area are followed successively by L (S (i-1, j-1))+L (S (i-1, j))+L (S (i, j+1))+L (S (i, j-1))+L
(S (i-1, j+1))+L (S (i+1, j-1))+L (S (i+1, j))+L (S (i+1, j+1)).
Further, described based on predetermined luminance backoff algorithm and the backlight brightness values in the adjacent lamps area when headlight area
Include: when the step of compensation backlight brightness values in headlight area described in being calculated
Step S35 calculates the average value of the backlight brightness values in eight adjacent lamps areas, as intermediate partition average value；
Such as: if when headlight area is located in intermediate partition, average value=((L (S of the backlight brightness values in eight adjacent lamps areas
(i-1, j-1))+L (S (i-1, j))+L (S (i, j+1))+L (S (i, j-1))+L (S (i-1, j+1))+L (S (i+1, j-1))+L
(S (i+1, j))+L (S (i+1, j+1)))/8.
The average value is multiplied by step S36 with predetermined luminance penalty coefficient, obtains the compensation backlight for working as headlight area
Brightness value.
The average value of the backlight brightness values in eight adjacent lamps areas is multiplied with predetermined luminance penalty coefficient K, this can be obtained
The compensation backlight brightness values in lamp area.
Such as: L (S (i, j))=((L (S (i-1, j-1))+L (S (i-1, j))+L (S (i, j+1))+L (S (i, j-1))+L
(S (i-1, j+1))+L (S (i+1, j-1))+L (S (i+1, j))+L (S (i+1, j+1)))/8) * K.
Second embodiment, 3rd embodiment and fourth embodiment respectively can individually be implemented, can also with combination of two or
Three combines implementation, i.e. it also may include a multiple subregions that bright block, which may include one or more lamp area,.
The backlight compensation method proposed through this embodiment realizes eight by the acquisition area intermediate partition range Nei Deng
The compensation backlight brightness values in the angle area subregion range Nei Deng are calculated in the backlight brightness values in adjacent lamps area.
Further, as shown in fig. 7, being based on above-mentioned first embodiment shown in Fig. 3, backlight compensation method of the present invention is proposed
5th embodiment, in the present embodiment, before above-mentioned steps S1 further include:
Step S01 obtains the backlight brightness values for working as headlight area；
Step S02, judges whether the backlight brightness values are less than default backlight illumination threshold value；
If the backlight brightness values are less than default backlight illumination threshold value, then follow the steps: obtaining the position for working as headlight area
Information, and the divisional type for working as headlight area is determined according to the positional information.
In this example it is shown that equipment obtains the backlight brightness values in all lamp areas from main control chip, successively to each lamp
The judgement of brightness threshold is done in area, if wherein the backlight brightness values in some lamp area are more than or equal to default backlight illumination threshold value,
Without carrying out backlight illumination compensation to the lamp area, if but wherein the backlight brightness values in some lamp area are less than default backlight illumination threshold
Value then needs to carry out the lamp area backlight illumination compensation, i.e. execution step: obtaining the location information for working as headlight area.
Further, above-mentioned steps S4 includes:
Step S41 obtains amendment back by described when the backlight brightness values in headlight area are added with the compensation backlight brightness values
Brightness values；
Step S42, control are described when headlight area is exported by the amendment backlight brightness values.
It is calculated after the compensation backlight brightness values in headlight area in computing module, compensating module is by the compensation backlight illumination
The backlight brightness values in the area Zhi Yugaideng are added, and the revised backlight brightness values in lamp area can be obtained, and compensating module controls later
The lamp area is according to the light of amendment backlight brightness values output corresponding brightness, and the brightness of the light of lamp area output at this time is because obtain phase
The backlight compensation in the area Lin Deng and be apparent from.
The backlight compensation method proposed through this embodiment realizes and carries out backlight by the bright block automatically to dark area
The phenomenon that compensation, improvement uneven luminance.
The technical solution proposed through the embodiment of the present invention solves most of with Local in the prior art
The television set of Dimming (local backlight adjusting) technology, Local Dimming algorithm is by SOC (System-on-a-Chip
Main control chip) supplier or third party provide support, and solidification is not easy to update.Certain scene Local in TV programme
Dimming algorithm can not be well adapted for, such as bright similar to moving under the dark backgrounds such as the torch moved in the dark
Block, will appear when mobile it is suddenly bright neglect dark phenomenon, and front and rear side is along due to backlight deficiency, also can be very unintelligible, especially work as
When backlight subarea number is less, since lamp is away from larger, it can seem and become apparent.When bright block moves on backlight position, bright block
It is brighter, and when being moved between two lamps, bright block is darker, and mobile speed is faster, and variation is more obvious.This is because backlight is always
Caused by the delay for having a field synchronization (VSYNC vertical synchronization) period.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the terminal that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or terminal institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or terminal.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that terminal device (it can be mobile phone,
Computer, server, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of backlight compensation method, which is characterized in that the backlight compensation method is applied to display equipment, the display equipment
Be provided with multiple lamp areas, the backlight compensation method the following steps are included:
The location information for working as headlight area is obtained, and determines the divisional type for working as headlight area according to the positional information；
The backlight brightness values in the adjacent lamps area for working as headlight area are obtained with the divisional type according to the positional information；
Based on predetermined luminance backoff algorithm and it is described when the backlight brightness values in the adjacent lamps area in headlight area be calculated it is described current
The compensation backlight brightness values in lamp area；
Based on the compensation backlight brightness values, to described when headlight area carries out backlight compensation.
2. backlight compensation method as described in claim 1, which is characterized in that when the divisional type is angle subregion, be in
The angle area subregion range Nei Deng is set there are three adjacent lamps area, described according to the positional information and described in lamp area type obtains
Include: when the step of backlight brightness values in the adjacent lamps area in headlight area
The back in three adjacent lamps areas when headlight area within the scope of the angle subregion is obtained according to the positional information
Brightness values；
It is described based on predetermined luminance backoff algorithm and it is described when the backlight brightness values in the adjacent lamps area in headlight area be calculated it is described
Include: when the step of compensation backlight brightness values in headlight area
The angle average value for calculating the backlight brightness values in three adjacent lamps areas, as angle subregion average value；
The angle subregion average value is multiplied with predetermined luminance penalty coefficient, obtains the compensation backlight illumination for working as headlight area
Value.
3. backlight compensation method as described in claim 1, which is characterized in that when the divisional type is side subregion, be in
The side area subregion range Nei Deng is set there are five adjacent lamps area, described according to the positional information and described in lamp area type obtains
Include: when the step of backlight brightness values in the adjacent lamps area in headlight area
The back in five adjacent lamps areas when headlight area within the scope of the side subregion is obtained according to the positional information
Brightness values；
It is described based on predetermined luminance backoff algorithm and it is described when the backlight brightness values in the adjacent lamps area in headlight area be calculated it is described
Include: when the step of compensation backlight brightness values in headlight area
The average value for calculating the backlight brightness values in five adjacent lamps areas, as side subregion average value；
The side subregion average value is multiplied with predetermined luminance penalty coefficient, obtains the compensation backlight illumination for working as headlight area
Value.
4. backlight compensation method as described in claim 1, which is characterized in that when lamp area type is intermediate partition, place
Eight adjacent lamps areas are equipped in the intermediate partition area range Nei Deng, it is described to be obtained according to the positional information with lamp area type
It is described to include: when the step of backlight brightness values in the adjacent lamps area in headlight area
Eight adjacent lamps areas when headlight area within the scope of the intermediate partition are obtained according to the positional information
Backlight brightness values；
It is described based on predetermined luminance backoff algorithm and it is described when the backlight brightness values in the adjacent lamps area in headlight area be calculated it is described
Include: when the step of compensation backlight brightness values in headlight area
The average value for calculating the backlight brightness values in eight adjacent lamps areas, as intermediate partition average value；
The intermediate partition average value is multiplied with predetermined luminance penalty coefficient, obtains the compensation backlight illumination for working as headlight area
Value.
5. backlight compensation method as described in claim 1, which is characterized in that the location information in headlight area is worked as in the acquisition, and
Before the step of determining the lamp area type in the lamp area according to the positional information further include:
Obtain the backlight brightness values for working as headlight area；
Judge whether the backlight brightness values are less than default backlight illumination threshold value；
If the backlight brightness values are less than default backlight illumination threshold value, then follow the steps: obtaining the position for working as headlight area
Information, and the divisional type for working as headlight area is determined according to the positional information.
6. backlight compensation method as claimed in claim 5, which is characterized in that it is described based on the compensation backlight brightness values, it is right
It is described to include: the step of headlight area carries out backlight compensation
By described when the backlight brightness values in headlight area are added with the compensation backlight brightness values, amendment backlight brightness values are obtained；
Control is described when headlight area is exported by the amendment backlight brightness values.
7. such as the described in any item backlight compensation methods of claim 2 to 4, which is characterized in that the predetermined luminance penalty coefficient
Greater than 0 and it is less than or equal to 1.
8. a kind of display equipment, which is characterized in that the display equipment includes:
Data obtaining module obtains the location information for working as headlight area, and determines described work as headlight according to the positional information
The divisional type in area；
Luminance acquisition module obtains the back in the adjacent lamps area for working as headlight area with the divisional type according to the positional information
Brightness values；
Computing module, based on predetermined luminance backoff algorithm and described when the backlight brightness values in the adjacent lamps area in headlight area are calculated
The compensation backlight brightness values when headlight area；
Compensating module is based on the compensation backlight brightness values, to described when headlight area carries out backlight compensation.
9. a kind of backlight compensation system, which is characterized in that the backlight compensation system includes: memory, processor and is stored in
On the memory and the backlight compensation program that can run on the processor, the backlight compensation program is by the processor
The step of backlight compensation method as described in any one of claims 1 to 7 is realized when execution.
10. a kind of storage medium, which is characterized in that be stored with backlight compensation program, the backlight compensation on the storage medium
The step of backlight compensation method as described in any one of claims 1 to 7 is realized when program is executed by processor.
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| PCT/CN2019/111577 WO2020078404A1 (en) | 2018-10-17 | 2019-10-17 | Backlight compensation method, device, system, and storage medium |
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| WO2020078404A1 (en) * | 2018-10-17 | 2020-04-23 | 深圳Tcl新技术有限公司 | Backlight compensation method, device, system, and storage medium |
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