CN108388416A - The average picture level processing method and system of display device - Google Patents
The average picture level processing method and system of display device Download PDFInfo
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- CN108388416A CN108388416A CN201810214581.7A CN201810214581A CN108388416A CN 108388416 A CN108388416 A CN 108388416A CN 201810214581 A CN201810214581 A CN 201810214581A CN 108388416 A CN108388416 A CN 108388416A
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- picture level
- average picture
- pending area
- setting position
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
- G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
Abstract
The present invention provides a kind of the average picture level processing method and system of display device.The average picture level processing method of the display device includes：Obtain point corresponding average picture level in setting position in the mosaic screen, wherein the line being in turn connected to form between multiple setting position points forms pending area；According to the position coordinates for the setting position point for forming pending area average picture level corresponding with the setting position point of pending area is formed, the corresponding average picture level expression formula of the pending area is generated.The average picture level processing method of display device provided by the present invention and the technical solution of system effectively improve the luminance difference that the stitching portion in display device between mosaic screen occurs.
Description
Technical field
The present invention relates to display technology field, more particularly to the average picture level processing method of a kind of display device and it is
System.
Background technology
Due to Organic Light Emitting Diode (Organic Light-Emitting Diode, abbreviation：OLED it is) that self-luminous is aobvious
Show device, therefore, the power consumption of oled panel depends on inputted image data.When input load is relatively low, it will cause work(
Consumption waste；When input load is higher, it will cause power consumption insufficient.To solve the above problems, existing oled panel is usually adopted
With adaption brightness system, when input load is higher, it will reduce the brightness value corresponding to unit grayscale；When input load is inclined
When low, it will increase the brightness value corresponding to unit grayscale, to increase contrast.
Existing Video Wall Display System is mainly made of multiple mosaic screens, and mosaic screen includes above-mentioned oled panel.It was showing
Cheng Zhong, a frame image can be divided into more parts and be respectively displayed on the mosaic screen of different zones, and the mosaic screen of different zones institute is defeated
The image data entered is different, i.e., institute's input load is different, and average picture level (Average Picture Level, referred to as：
APL it) also differs, apparent luminance difference occurs in the stitching portion be easy to causeing between mosaic screen.
Invention content
The present invention provides a kind of the average picture level processing method and system of display device, for being effectively improved display dress
Set the luminance difference that the stitching portion between mosaic screen occurs.
To achieve the above object, the present invention provides a kind of average picture level processing methods of display device, described aobvious
Showing device includes multiple mosaic screens, and the average picture level processing method of the display device includes：
Obtain point corresponding average picture level in setting position in the mosaic screen, wherein between multiple setting position points
The line being in turn connected to form forms pending area；
According to the position coordinates of setting position point of the formation pending area and setting for the formation pending area
Determine the corresponding average picture level of location point, generates the corresponding average picture level expression formula of the pending area.
Optionally, the position coordinates according to setting position point the average image corresponding with the setting position point
Level, generating the corresponding average picture level expression formula of the pending area includes：
According to the position coordinates of setting position point of the formation pending area and setting for the formation pending area
Determine the corresponding average picture level of location point, the setting position point to forming the pending area carries out at bilinear interpolation
Reason, generates the corresponding average picture level expression formula of the pending area.
Optionally, described to wait locating according to described in the position coordinates for the setting position point for forming the pending area and formation
The corresponding average picture level of setting position point for managing region, the setting position point to forming the pending area carry out two-wire
Property interpolation processing, generating the corresponding average picture level expression formula of the pending area includes：
According to the position coordinates of setting position point of the formation pending area and setting for the formation pending area
Determine the corresponding average picture level of location point, the setting position point to forming the pending area in a first direction carries out the
Linear interpolation on one direction generates the corresponding average picture level expression formula of multiple intermediate position points；
According to the position coordinates of multiple intermediate position points and the corresponding average picture level table of the intermediate position points
Up to formula, the linear interpolation in second direction is carried out to multiple intermediate position points, generates the corresponding the average image of interpolation location point
The expression formula of level, the corresponding average picture level expression formula of the pending area includes that the interpolation location point is corresponding
The expression formula of average picture level, the first direction and the second direction are arranged in a crossed manner.
Optionally, the average picture level processing method further includes：
According to the position coordinates of setting position point of the formation pending area and setting for the formation pending area
Determine the corresponding average picture level of location point, generates the corresponding the average image in neighboring area positioned at the pending area periphery
Level expression formula.
Optionally, described to wait locating according to described in the position coordinates for the setting position point for forming the pending area and formation
The corresponding average picture level of setting position point in region is managed, generates and is corresponded to positioned at the neighboring area on the pending area periphery
Average picture level expression formula include：
According to the position coordinates of setting position point of the formation pending area and setting for the formation pending area
Determine the corresponding average picture level of location point, the setting position point to forming the pending area carries out linear interpolation processing,
Generate the corresponding average picture level expression formula in neighboring area positioned at the pending area periphery.
Optionally, the neighboring area be to be formed the pending area setting position point and with formed it is described pending
The line being in turn connected to form between the corresponding marginal position point of setting position point in region is formed by region, the peripheral region
Domain includes the first neighboring area and the second neighboring area；The position according to the setting position point for forming the pending area
Coordinate average picture level corresponding with the setting position point of pending area is formed, to forming the pending area
Setting position point carries out linear interpolation processing, generates the corresponding the average image in neighboring area positioned at the pending area periphery
Level expression formula includes：
According to the position coordinates of setting position point of the formation pending area and setting for the formation pending area
Determine the corresponding average picture level of location point, the setting position point to forming the pending area in a first direction carries out the
Linear interpolation on one direction generates the corresponding average picture level expression formula in the first neighboring area；
According to the position coordinates of setting position point of the formation pending area and setting for the formation pending area
Determine the corresponding average picture level of location point, the setting position point to forming the pending area in a second direction carries out the
Linear interpolation on two directions generates the corresponding average picture level expression formula in the second neighboring area.
To achieve the above object, the present invention provides a kind of average picture level processing systems of display device, described aobvious
Showing device includes multiple mosaic screens, and the average picture level processing system includes：
Acquisition module, for obtaining point corresponding average picture level in setting position in the mosaic screen, wherein Duo Geshe
Determine the line being in turn connected to form between location point and forms pending area；
Generation module, for being waited for according to described in the position coordinates for the setting position point for forming the pending area and formation
The corresponding average picture level of setting position point of processing region, generates the corresponding average picture level table of the pending area
Up to formula.
Optionally, the generation module is specifically used for being sat according to the position for the setting position point for forming the pending area
Mark average picture level corresponding with the setting position point of pending area is formed, sets to forming the pending area
A progress bilinear interpolation processing is set in positioning, generates the corresponding average picture level expression formula of the pending area.
Optionally, the generation module is specifically used for the position according to the setting position point for forming the pending area
Coordinate average picture level corresponding with the setting position point of pending area is formed, it is described to being formed in a first direction
The setting position point of pending area carries out the linear interpolation on first direction, generates the corresponding mean chart of multiple intermediate position points
As level expression formula；According to the position coordinates of multiple intermediate position points and the corresponding the average image electricity of the intermediate position points
Flat expression formula carries out the linear interpolation in second direction to multiple intermediate position points, it is corresponding average to generate interpolation location point
The expression formula of picture level, the corresponding average picture level expression formula of the pending area includes the interpolation location point pair
The expression formula for the average picture level answered, the first direction and the second direction are arranged in a crossed manner.
Optionally, the generation module is additionally operable to the position coordinates according to the setting position point for forming the pending area
Average picture level corresponding with the setting position point of pending area is formed, generates and is located at the pending area periphery
The corresponding average picture level expression formula in neighboring area.
Optionally, the generation module is specifically used for being sat according to the position for the setting position point for forming the pending area
Mark average picture level corresponding with the setting position point of pending area is formed, sets to forming the pending area
A progress linear interpolation processing is set in positioning, generates the corresponding the average image electricity in neighboring area positioned at the pending area periphery
Flat expression formula.
Optionally, the neighboring area be to be formed the pending area setting position point and with formed it is described pending
The line being in turn connected to form between the corresponding marginal position point of setting position point in region is formed by region, the peripheral region
Domain includes the first neighboring area and the second neighboring area；
The generation module is specifically used for position coordinates and shape according to the setting position point for forming the pending area
At the corresponding average picture level of setting position point of the pending area, to forming the pending district in a first direction
The setting position point in domain carries out the linear interpolation on first direction, generates the corresponding average picture level expression in the first neighboring area
Formula；According to the position coordinates for the setting position point for forming the pending area and the setting position for forming the pending area
The corresponding average picture level of point, the setting position point to forming the pending area in a second direction carry out second direction
On linear interpolation, generate the corresponding average picture level expression formula in the second neighboring area.
The present invention has the advantages that：
In the average picture level processing method of display device provided by the present invention and the technical solution of system, according to shape
At the position coordinates of the setting position point of pending area the average image corresponding with the setting position point of pending area is formed
Level generates the corresponding average picture level expression formula of pending area, according to the corresponding average picture level of pending area
Expression formula can adjust accordingly the corresponding image data of each sub-pix in pending area, so that waiting for
The luminance difference of stitching portion in processing region between mosaic screen is effectively improved.
Description of the drawings
Fig. 1 is a kind of flow chart of the average picture level processing method for display device that the embodiment of the present invention one provides；
Fig. 2 is a kind of flow chart of the average picture level processing method of display device provided by Embodiment 2 of the present invention；
Fig. 3 is the planar structure schematic diagram of display device；
Fig. 4 is the position coordinates schematic diagram of setting position point；
Fig. 5 is the analogous diagram of the corresponding average picture level expression formula of pending area；
Fig. 6 is another analogous diagram of the corresponding average picture level expression formula of pending area；
Fig. 7 be the pending area of display device, the first neighboring area and the second neighboring area structural schematic diagram；
Fig. 8 is the corresponding APL schematic diagrames of each position coordinate in the display device for do not carry out bilinear interpolation processing；
Fig. 9 is the corresponding APL schematic diagrames of each position coordinate in the display device handled by bilinear interpolation；
Figure 10 is that a kind of structure of the average picture level processing system for display device that the embodiment of the present invention three provides is shown
It is intended to.
Specific implementation mode
To make those skilled in the art more fully understand technical scheme of the present invention, the present invention is carried below in conjunction with the accompanying drawings
The average picture level processing method and system of the display device of confession are described in detail.
Fig. 1 is a kind of flow chart of the average picture level processing method for display device that the embodiment of the present invention one provides,
Wherein, display device includes multiple mosaic screens, as shown in Figure 1, average picture level processing method includes：
Step 101 obtains point corresponding average picture level in setting position in mosaic screen, wherein multiple setting position points
Between the line that is in turn connected to form form pending area.
Step 102, the position coordinates of setting position point according to formation pending area and setting for formation pending area
Determine the corresponding average picture level of location point, generates the corresponding average picture level expression formula of pending area.
In the technical solution of the average picture level processing method for the display device that the present embodiment is provided, waited for according to formation
The position coordinates of the setting position point of processing region average picture level corresponding with the setting position point of pending area is formed,
The corresponding average picture level expression formula of pending area is generated, according to the corresponding average picture level expression formula of pending area
The corresponding image data of each sub-pix in pending area can be adjusted accordingly, so that in pending district
The luminance difference of stitching portion in domain between mosaic screen is effectively improved.
Fig. 2 is a kind of flow chart of the average picture level processing method of display device provided by Embodiment 2 of the present invention,
As shown in Fig. 2, this method includes：
Step 201 obtains point corresponding average picture level in setting position in mosaic screen, wherein multiple setting position points
Between the line that is in turn connected to form form pending area.
In the present embodiment, Fig. 3 is the planar structure schematic diagram of display device, as shown in figure 3, display device includes multiple spellings
Connect screen 1, it is preferable that display device includes 4 mosaic screens 1.Specifically, the optional setting position point in each mosaic screen 1,
Preferably, setting position point is the central point of mosaic screen 1.Specifically, the setting position of the first row first row mosaic screen 1 is obtained respectively
Set the corresponding average picture level APL of point AA, the first row secondary series mosaic screen 1 setting position point B corresponding the average image electricity
Flat APLB, the second row first row mosaic screen 1 the corresponding average picture level APL of setting position point CCIt is spelled with the second row secondary series
Meet the corresponding average picture level APL of setting position point D of screen 1D。
In the present embodiment, the corresponding APL of arbitrary setting position point in each mosaic screen 1 is identical, in each mosaic screen 1
Point corresponding APL in arbitrary setting position is 1 corresponding APL of the mosaic screen, and due to the picture number corresponding to different mosaic screens 1
According to difference, therefore difference 1 corresponding APL of mosaic screen is also differed.Wherein, 1 corresponding APL of each mosaic screen can be according to the spelling
The image data in screen corresponding to each sub-pix is connect to generate.That is, the setting position point in each mosaic screen 1 is corresponding
APL is that the image data corresponding to each sub-pix in the mosaic screen 1 generates.Therefore, in the present embodiment, step 201 packet
It includes：The raw image data corresponding to each sub-pix in mosaic screen 1 is obtained, and according to corresponding to each sub-pix in the mosaic screen 1
Raw image data generate 1 corresponding APL of the mosaic screen, 1 corresponding APL of the mosaic screen is the setting in the mosaic screen 1
The corresponding APL of location point.Specifically, the raw image data in mosaic screen 1 corresponding to each sub-pix is corresponding with the mosaic screen 1
APL has preset function correspondence, the raw image data in obtaining the mosaic screen 1 corresponding to each sub-pix
It afterwards, can be according to the preset function correspondence, by the raw image data generation corresponding to each sub-pix in the mosaic screen 1
Enter the preset function correspondence, you can generate 1 corresponding APL of the mosaic screen.
In the present embodiment, area that line that pending area 2 is in turn connected to form between multiple setting position points surrounds
Domain.Preferably, the quadrangle area that the line that pending area 2 is in turn connected to form between setting position point A, B, C, D surrounds
Domain.
Step 202, the position coordinates of setting position point according to formation pending area and setting for formation pending area
Determine the corresponding average picture level of location point, generates the corresponding average picture level expression formula of pending area.
Specifically, step 202 includes：It waits locating with being formed according to the position coordinates for the setting position point for forming pending area
The corresponding average picture level of setting position point for managing region, the setting position point to forming pending area carry out bilinearity and insert
Value processing generates the corresponding average picture level expression formula of pending area.
Fig. 4 be setting position point position coordinates schematic diagram, as shown in figure 4, using in Fig. 3 display device on one side as X
Axis establishes coordinate system as shown in Figure 4 using the another side adjacent with the side as Y-axis, then can be determined according to the coordinate system
Go out the position coordinates of each setting position point on the display apparatus.By taking display device includes 4 mosaic screens 1 as an example, then, this implementation
In example, the setting position point for forming pending area 2 includes setting position point A, setting position point B, setting position point C and setting
Location point D, it is assumed that the position coordinates of setting position point A are (x1, y1), the position coordinates of setting position point B are (x2, y1), set
The position coordinates for determining location point C are (x1, y2) and the position coordinates of setting position point D are (x2, y2).
Specifically, step 202 includes：
It is step 2021, described pending according to the position coordinates for the setting position point for forming the pending area and formation
The corresponding average picture level of setting position point in region, the setting position to forming pending area in a first direction click through
Linear interpolation on row first direction generates the corresponding average picture level expression formula of multiple intermediate position points.
As shown in figure 4, by taking first direction is X-direction as an example, then, setting for pending area is formed in a first direction
It includes setting position point A and setting position point B to determine location point, and, the setting position of pending area is formed in a first direction
Set includes a little setting position point C and setting position point D.
Specifically, according to the position coordinates (x1, y1) of the setting position point A in the first row first row mosaic screen 1 and correspondence
Average picture level APLAAnd setting in the first row secondary series mosaic screen 1 adjacent with the mosaic screen 1 in a first direction
Determine the position coordinates (x2, y1) of location point B and corresponding average picture level APLB, to setting position point A and setting position point B
The linear interpolation on first direction is carried out, generates the corresponding average picture level expression formulas of intermediate position points R2, wherein interposition
The coordinate for setting point R2 is (x, y1), and the corresponding average picture levels of intermediate position points R2 are f (R2), can according to linear interpolation formula
Know,Wherein, f (A) is the corresponding average picture level APL of setting position point AA, f
(B) it is the corresponding average picture level APL of setting position point BB.In brief, in a first direction, in setting position point A and
Intermediate position points R2 is inserted between the point B of setting position, according to linear interpolation formula, it can be deduced that intermediate position points R2 is corresponding flat
Equal picture level expression formula, i.e.,
According to the position coordinates (x1, y2) of the setting position point C in the second row first row mosaic screen 1 and corresponding mean chart
As level APLCAnd the setting position point D in the second row secondary series mosaic screen 1 adjacent with the mosaic screen 1 in a first direction
Position coordinates (x2, y2) and corresponding average picture level APLD, first is carried out to setting position point C and setting position point D
Linear interpolation on direction generates the corresponding average picture level expression formulas of intermediate position points R1, wherein intermediate position points R1's
Coordinate be (x, y2), the corresponding average picture levels of intermediate position points R1 be f (R1), according to linear interpolation formula it is found thatWherein, f (C) is the corresponding average picture level APL of setting position point CC, f (D)
For the corresponding average picture level APL of setting position point DD.In brief, in a first direction, in setting position point C and setting
Intermediate position points R1 is inserted between location point D, according to linear interpolation formula, it can be deduced that the corresponding mean charts of intermediate position points R1
As level expression formula, i.e.,
Step 2022, the corresponding average picture level table of position coordinates and intermediate position points according to multiple intermediate position points
Up to formula, the linear interpolation in second direction is carried out to multiple intermediate position points, generates the corresponding the average image of interpolation location point
The expression formula of level, the corresponding average picture level expression formula of pending area include the corresponding the average image of interpolation location point
The expression formula of level.
As shown in figure 4, using first direction as X-direction, for second direction is Y direction, specifically, according to interposition
Set position coordinates (x, y1) and the corresponding average picture level expression formula f (R1) of intermediate position points R1 and the centre position of point R1
The corresponding average picture level expression formula f (R2) of position coordinates (x, y2) and intermediate position points R2 of point R2, to intermediate position points
R1 and intermediate position points R2 carries out the linear interpolation in second direction, generates the corresponding average picture levels of interpolation location point P
Expression formula.Assuming that the position coordinates of interpolation location point P are (x, y), the corresponding average picture levels of interpolation location point P are
F (P), according to linear interpolation formula it is found that the expression formula of the corresponding average picture levels of interpolation location point P isIt will be above-mentionedWithIt substitutes intoFinally obtain interpolation position
Set the corresponding average picture level expression formulas of point P：
, wherein in pending area, for any one position coordinates (x, y), x ∈ (x1, x2), y ∈ (y2, y1).In short
It, is inserted into interpolation location point P, according to linear interpolation formula, it can be deduced that above-mentioned to be inserted between intermediate position points R1 and R2
It is worth the expression formula of the corresponding average picture levels of location point P.
In the present embodiment, using first direction as Y direction, second direction be X-direction carry out bilinear interpolation also can, tool
Body can refer to it is above-mentioned using first direction as X-direction, second direction be Y direction for carry out bilinear interpolation description, this
Place repeats no more.In the present embodiment, first direction and second direction are arranged in a crossed manner, it is preferable that first direction and second direction phase
It is mutually vertical.
Fig. 5 is the analogous diagram of the corresponding average picture level expression formula of pending area, by above-mentioned pending area
Corresponding average picture level expression formula is emulated, and each position coordinate (x, y) in pending area is substituted into pending area
Corresponding average picture level expression formula obtains the curved surface seamlessly transitted as shown in Figure 5.Fig. 6 is that pending area is corresponding
Another analogous diagram of average picture level expression formula, it is assumed that f (A)=APLA=1000, f (B)=APLB=800, f (C)=APLC
=600, f (D)=APLD=500, as shown in fig. 6, by the corresponding average picture level expression formula of above-mentioned pending area
It is emulated, each position coordinate (x, y) in pending area is substituted into the corresponding average picture level expression formula of pending area,
Obtain the curved surface as shown in FIG. 6 seamlessly transitted.On curved surface shown in Fig. 5 or on curved surface shown in fig. 6, each point pair
Each position coordinates that should be in pending area and corresponding APL.As can be known from Fig. 5 and Fig. 6, in pending area,
Each APL is seamlessly transitted.
Step 203, the position coordinates of setting position point according to formation pending area and setting for formation pending area
Determine the corresponding average picture level of location point, generates the corresponding average picture level in neighboring area positioned at pending area periphery
Expression formula.
Specifically, step 203 includes：It waits locating with being formed according to the position coordinates for the setting position point for forming pending area
The corresponding average picture level of setting position point for managing region, the setting position point to forming pending area carry out linear interpolation
Processing generates the corresponding average picture level expression formula in neighboring area positioned at pending area periphery.
Fig. 7 be the pending area of display device, the first neighboring area and the second neighboring area structural schematic diagram, such as scheme
Shown in 7, in the present embodiment, neighboring area is the setting position point to form pending area and the setting with formation pending area
The region that the line being in turn connected to form between the corresponding marginal position point of location point is formed, for example, setting position point A and edge
Location point I is corresponded to, and setting position point B is corresponding with marginal position point.Wherein, the quantity of neighboring area can be multiple, specifically,
Neighboring area includes the first neighboring area and the second neighboring area.Wherein, the quantity of the first neighboring area can be multiple, preferably
Ground, in the present embodiment, the quantity of the first neighboring area is 2；The quantity of second neighboring area can be multiple, it is preferable that the
The quantity of two neighboring areas is 2.Specifically, as shown in fig. 7, the first neighboring area 3 includes setting position point A, setting position
The region that the line being in turn connected to form between point B, marginal position point I and marginal position point J is formed, the hereinafter referred to as areas ABJI
Domain, the first neighboring area 4 include between setting position point C, setting position point D, marginal position point K and marginal position point L successively
Connect the region being formed continuously formed, the hereinafter referred to as regions CDLK；Second neighboring area 5 includes setting position point A, setting
The region that the line being in turn connected to form between location point C, marginal position point E and marginal position point F is formed, hereinafter referred to as
The regions ACFE, the second neighboring area 6 include setting position point B, setting position point D, marginal position point G and marginal position point H it
Between the region that is formed of the line that is in turn connected to form, the hereinafter referred to as regions BDHG.Wherein, the first neighboring area 3, the first periphery
Region 4, the second neighboring area 5 and the second neighboring area 6 are located at the periphery of pending area 2.
Specifically, step 203 includes：
Step 2031, the position coordinates of setting position point according to formation pending area and setting for formation pending area
Determine the corresponding average picture level of location point, the setting position point to forming pending area in a first direction carries out first party
Upward linear interpolation generates the corresponding average picture level expression formula in the first neighboring area.
In the present embodiment, 3 corresponding average picture level expression formula of the first neighboring area includes that the regions ABJI are corresponding flat
Equal picture level expression formula, 4 corresponding average picture level expression formula of the first neighboring area includes that the regions CDLK are corresponding average
Picture level expression formula, wherein the corresponding average picture level expression formula in the regions ABJI includes generated in above-mentioned steps 2021
The corresponding average picture level expression formulas of intermediate position points R2, the corresponding average picture level expression formula in the regions CDLK includes upper
State the corresponding average picture level expression formulas of intermediate position points R1 generated in step 2021.For how to generate it is multiple in
Between the corresponding average picture level expression formula of location point R1 and R2, reference can be made to the description of above-mentioned steps 2021, details are not described herein again.
Specifically, in the first neighboring area 3, the corresponding average picture level expression formula in the regions ABJI includes centre position
The corresponding average picture levels of point R2 are f (R2).Assuming that the position coordinates of marginal position point I are (x1, y0), marginal position point J
Position coordinates be (x2, y0), then at this point, in the regions ABJI, for any one position coordinates (x, y), x ∈ (x1, x2),
Each position coordinate (x, y) in the regions ABJI is substituted into f (R2) by y ∈ (y1, y0) respectively, you can plane ABJI is obtained, flat
Each point on the ABJI of face corresponds to each position coordinates and corresponding APL in the regions ABJI.
In the first neighboring area 4, the corresponding average picture level expression formula in the regions CDLK includes R1 pairs of intermediate position points
The average picture level answered is f (R1).Assuming that the position coordinates of marginal position point K are (x1,0), the position of marginal position point L is sat
It is designated as (x2,0), then at this point, in the regions CDLK, in any one position coordinates (x, y), x ∈ (x1, x2), y ∈ (0,
Y2), each position coordinate (x, y) in the regions CDLK is substituted into f (R1) respectively, you can plane CDLK is obtained, in plane CDLK
On each point correspond to the regions CDLK in each position coordinates and corresponding APL.
Step 2032, the position coordinates of setting position point according to formation pending area and setting for formation pending area
Determine the corresponding average picture level of location point, the setting position point to forming pending area in a second direction carries out second party
Upward linear interpolation generates the corresponding average picture level expression formula in the second neighboring area.
As shown in fig. 7, by taking second direction is Y direction as an example, then, setting for pending area is formed in a second direction
Determining location point has setting position point A and setting position point C, and forms the setting position point of pending area in a second direction
There are setting position point B and setting position point D.Specifically, according to the position of the setting position point A in the first row first row mosaic screen 1
Set coordinate (x1, y1) and corresponding average picture level APLAAnd the first row adjacent with the mosaic screen 1 in a second direction
The position coordinates (x1, y2) and corresponding average picture level APL of setting position point C in secondary series mosaic screen 1C, to setting
Location point A and setting position point C carries out the linear interpolation in second direction, generates the corresponding the average image electricity of intermediate position points T2
Flat expression formula, wherein the coordinate of intermediate position points T2 is (x1, y), and the corresponding average picture levels of intermediate position points T2 are f
(T2), according to linear interpolation formula it is found thatIn brief, in a second direction,
Intermediate position points T2 is inserted between setting position point A and setting position point C, according to linear interpolation formula, it can be deduced that intermediate
The corresponding average picture level expression formulas of location point T2, i.e.,
According to the position coordinates (x2, y1) of the setting position point B in the second row first row mosaic screen 1 and corresponding mean chart
As level APLBAnd the setting position point D in the second row secondary series mosaic screen 1 adjacent with the mosaic screen 1 in a second direction
Position coordinates (x2, y2) and corresponding average picture level APLD, second is carried out to setting position point B and setting position point D
Linear interpolation on direction generates the corresponding average picture level expression formulas of intermediate position points T1, wherein intermediate position points T1's
Coordinate be (x2, y), the corresponding average picture levels of intermediate position points T1 be f (T1), according to linear interpolation formula it is found thatIn brief, in a second direction, in setting position point B and setting position point D
Between be inserted into intermediate position points T1, according to linear interpolation formula, it can be deduced that the corresponding average picture levels of intermediate position points T1
Expression formula, i.e.,
In the present embodiment, 5 corresponding average picture level expression formula of the second neighboring area includes that the regions ACFE are corresponding flat
Equal picture level expression formula, 6 corresponding average picture level expression formula of the second neighboring area includes that the regions BDHG are corresponding average
Picture level expression formula.Specifically, in the second neighboring area 5, the corresponding average picture level expression formula in the regions ACFE includes
The corresponding average picture level expression formula f (T2) of intermediate position points T2.Assuming that the position coordinates of marginal position point E are (0, y1),
The position coordinates of marginal position point F are (0, y2), then at this point, in the regions ACFE, x ∈ (0, x1), y ∈ (y2, y1), by this
Each position coordinate (x, y) in the regions ACFE substitutes into f (T2) respectively, you can plane ACFE is obtained, it is each on plane ACFE
A point corresponds to each position coordinates and corresponding APL in the regions ACFE.
In the second neighboring area 6, the corresponding average picture level expression formula in the regions BDHG includes T1 pairs of intermediate position points
The average picture level expression formula f (T1) answered.Assuming that the position coordinates of marginal position point G are (x0, y1), marginal position point H's
Position coordinates are (x0, y2), then at this point, in the regions BDHG, in any one position coordinates (x, y), x ∈ (x2,
X0), each position coordinate (x, y) in the regions BDHG is substituted into f (T1) by y ∈ (y2, y1) respectively, you can plane BDHG is obtained,
Each point on plane BDHG corresponds to each position coordinates and corresponding APL in the regions BDHG.
It should be noted that the present embodiment is not limited in any way the execution sequencing of step 202 and step 203,
It may be performed simultaneously, can also be adjusted according to actual conditions and execute sequence.
Fig. 8 is the corresponding APL schematic diagrames of each position coordinate in the display device for do not carry out bilinear interpolation processing, and Fig. 9 is
The corresponding APL schematic diagrames of each position coordinate in the display device handled by bilinear interpolation, as shown in figure 8, due to each splicing
The corresponding APL of each position coordinate of screen 1 is different, causes the stitching portion between mosaic screen 1, APL step phenomenon occur, causes to spell
Also there is step phenomenon in the brightness at the place of connecing, i.e. the brightness of stitching portion has notable difference, reduces the display effect of display device.
As shown in figure 9, the present embodiment is from each mosaic screen by obtaining the corresponding APL of setting position point A, B, C, D, and to setting position
The position coordinates of point A, B, C, D and corresponding APL carry out bilinear interpolation so that each position coordinate is corresponding in pending area
APL is seamlessly transitted, the corresponding APL of each position coordinate in the first neighboring area and the second neighboring area adjacent with pending area
Also it seamlessly transits, the phenomenon that step occurs so as to avoid the APL of the stitching portion between mosaic screen, and then improve stitching portion
Luminance difference.
Step 204, according to each sub- picture in the corresponding average picture level expression formula of pending area and pending area
The corresponding raw image data of element generates the corresponding new image data of each sub-pix in pending area.
Specifically, step 204 includes：
Step 2041, determined according to the corresponding average picture level expression formula of pending area it is each in pending area
The corresponding average picture level of position coordinates.
As shown in figure 9, in pending area, the corresponding average picture level of each position coordinate seamlessly transits.This implementation
In example, it is preferable that each position coordinate in pending area is corresponded with each sub-pix in pending area.In other words,
Each position coordinate in pending area is the position coordinates of each sub-pix in pending area.
Step 2042, according to the corresponding average picture level of position coordinates of each sub-pix in pending area and pending
The corresponding raw image data of each sub-pix in region generates the corresponding new picture number of each sub-pix in pending area
According to.If each sub-pix inputs raw image data in pending area, i.e., when not carrying out bilinear interpolation to pending area, that
In pending area, in stitching portion, the corresponding average picture level of each position coordinate shows there is step as shown in Figure 8
As the apparent luminance difference of stitching portion in pending area between mosaic screen will be caused.Therefore, in the present embodiment, in step
In 2042, according to each Asia in the corresponding average picture level of the position coordinates of each sub-pix in pending area and pending area
The corresponding raw image data of pixel generates the corresponding new image data of each sub-pix in pending area, in pending area
Each sub-pix inputs corresponding new image data, so as to be carried out to the brightness of the corresponding current frame image of pending area
Corresponding adjustment, and then when current frame image is shown, the brightness of the stitching portion between mosaic screen is effectively improved in pending area
Difference.
In the present embodiment, it is preferable that the corresponding new image data of each sub-pix in pending area is pending district
The product of average picture level in domain corresponding to position coordinates of the corresponding raw image data of the sub-pix with the sub-pix.
Step 205, according to each sub-pix pair in the corresponding average picture level expression formula in neighboring area and neighboring area
The raw image data answered generates the corresponding new image data of each sub-pix in neighboring area.
Specifically, step 205 includes：
Step 2051 determines each position in neighboring area according to the corresponding average picture level expression formula in neighboring area
The corresponding average picture level of coordinate.
As shown in figure 9, in neighboring area, the corresponding average picture level of each position coordinate seamlessly transits.
In the present embodiment, each position coordinate in neighboring area is corresponded with each sub-pix in neighboring area.Change speech
It, each position coordinate in neighboring area is the position coordinates of each sub-pix in neighboring area.
Step 2052, according to the corresponding average picture level of position coordinates of each sub-pix in neighboring area and neighboring area
In the corresponding raw image data of each sub-pix generate the corresponding new image data of each sub-pix in neighboring area.
If each sub-pix inputs raw image data in neighboring area, i.e., when not carrying out linear interpolation to neighboring area, that
In neighboring area, in stitching portion, the corresponding average picture level of each position coordinate step phenomenon as shown in Figure 8 will occur,
It will cause the apparent luminance difference of stitching portion in neighboring area between mosaic screen.Therefore, in the present embodiment, in step 2052
In, it is corresponded to according to each sub-pix in the corresponding average picture level of the position coordinates of each sub-pix in neighboring area and neighboring area
Raw image data generate the corresponding new image data of each sub-pix in neighboring area, each sub-pix input in neighboring area
Corresponding new image data, so as to be adjusted accordingly to the brightness of the corresponding current frame image in neighboring area, in turn
When current frame image is shown, the luminance difference of the stitching portion between mosaic screen is effectively improved in neighboring area.
In the present embodiment, it is preferable that the corresponding new image data of each sub-pix in neighboring area is in neighboring area
The product of average picture level corresponding to position coordinates of the corresponding raw image data of the sub-pix with the sub-pix.
It should be noted that in the present embodiment, each sub-pix inputs corresponding raw image data in each mosaic screen 1
Before, the raw image data is cached to driving IC, driving IC APLs corresponding to pending area carry out bilinear interpolation in advance
It handles and linear interpolation processing is carried out to the corresponding APL in neighboring area, that is, execute step 201 to step 203, then, execute step
Rapid 204 and step 205, generate each sub- picture in each sub-pix in pending area corresponding new image data and neighboring area
The corresponding new image data of element, and drive IC for the corresponding APL in region other than pending area and neighboring area not into
Any processing of row, therefore, the corresponding image data of each sub-pix is still in the region other than pending area and neighboring area
Corresponding raw image data, finally, each sub-pixes of the driving IC into pending area export corresponding new image data,
It drives each sub-pixes of the IC into neighboring area to export corresponding new image data, drives IC to pending area and peripheral region
Each sub-pix in region other than domain exports corresponding raw image data, works as to which realization is shown in each mosaic screen 1
Prior image frame.It should be noted that the present embodiment is not limited in any way the execution sequencing of step 204 and step 205,
It may be performed simultaneously, can also be adjusted according to actual conditions and execute sequence.
In the technical solution of the average picture level processing method for the display device that the present embodiment is provided, waited for according to formation
The position coordinates of the setting position point of processing region average picture level corresponding with the setting position point of pending area is formed,
The corresponding average picture level expression formula of pending area is generated, according to the corresponding average picture level expression formula of pending area
The corresponding image data of each sub-pix in pending area can be adjusted accordingly, so that in pending district
The luminance difference of stitching portion in domain between mosaic screen is effectively improved.
Figure 10 is that a kind of structure of the average picture level processing system for display device that the embodiment of the present invention three provides is shown
It is intended to, wherein display device includes multiple mosaic screens, and as shown in Figure 10, average picture level processing system includes acquisition module
301 and generation module 302.
Wherein, acquisition module 301 is for obtaining point corresponding average picture level in setting position in mosaic screen, wherein more
The line being in turn connected to form between a setting position point forms pending area.
Generation module 302 is used for position coordinates and formation pending district according to the setting position point for forming pending area
The corresponding average picture level of setting position point in domain generates the corresponding average picture level expression formula of pending area.
Specifically, generation module 302 be specifically used for according to formed pending area setting position point position coordinates with
The corresponding average picture level of setting position point for forming pending area, the setting position point to forming pending area carry out
Bilinear interpolation processing generates the corresponding average picture level expression formula of pending area.
Specifically, generation module 302 is specifically used for the position coordinates according to the setting position point for forming pending area
Average picture level corresponding with the setting position point of pending area is formed, to forming pending area in a first direction
Setting position point carries out the linear interpolation on first direction, generates the corresponding average picture level expression of multiple intermediate position points
Formula；According to the position coordinates of multiple intermediate position points and the corresponding average picture level expression formula of intermediate position points, in multiple
Between position point carry out the linear interpolation in second direction, generate the expression formula of the corresponding average picture level of interpolation location point,
The corresponding average picture level expression formula of pending area includes the table of the corresponding average picture level of the interpolation location point
Up to formula, first direction and the second direction are arranged in a crossed manner.
Specifically, generation module 302 is additionally operable to position coordinates and shape according to the setting position point for forming pending area
At the corresponding average picture level of setting position point of pending area, generate positioned at the neighboring area pair on pending area periphery
The average picture level expression formula answered.
Specifically, generation module 302 be specifically used for according to formed pending area setting position point position coordinates with
The corresponding average picture level of setting position point for forming pending area, the setting position point to forming pending area carry out
Linear interpolation processing generates the corresponding average picture level expression formula in neighboring area positioned at pending area periphery.
Specifically, neighboring area is the setting position point to form pending area and the setting position with formation pending area
The region that the line being in turn connected to form between a little corresponding marginal position point is formed is set, neighboring area includes the first neighboring area
With the second neighboring area.Generation module 302 be specifically used for according to formed pending area setting position point position coordinates with
The corresponding average picture level of setting position point for forming pending area, sets to forming pending area in a first direction
The linear interpolation on a progress first direction is set in positioning, generates the corresponding average picture level expression formula in the first neighboring area；Root
It is corresponding average according to the position coordinates and the formation setting position point of pending area for the setting position point for forming pending area
Picture level, the setting position point to forming pending area in a second direction carries out the linear interpolation in second direction, raw
At the corresponding average picture level expression formula in the second neighboring area.
The average picture level processing system for the display device that the present embodiment is provided, carries for realizing above-described embodiment two
The average picture level processing method of the display device of confession specifically describes and can be found in above-described embodiment two, and details are not described herein again.
In the technical solution of the average picture level processing system for the display device that the present embodiment is provided, generation module is used
In corresponding with the setting position point of pending area is formed according to the position coordinates for the setting position point for forming pending area
Average picture level generates the corresponding average picture level expression formula of pending area, corresponding average according to pending area
Picture level expression formula can adjust accordingly the corresponding image data of each sub-pix in pending area, to
So that the luminance difference of the stitching portion in pending area between mosaic screen is effectively improved.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, in the essence for not departing from the present invention
In the case of refreshing and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a kind of average picture level processing method of display device, which is characterized in that the display device includes multiple splicings
Screen, the average picture level processing method include：
Obtain point corresponding average picture level in setting position in the mosaic screen, wherein between multiple setting position points successively
The line that connection is formed forms pending area；
According to the position coordinates for the setting position point for forming the pending area and the setting position for forming the pending area
A little corresponding average picture level is set, the corresponding average picture level expression formula of the pending area is generated.
2. the average picture level processing method of display device according to claim 1, which is characterized in that described according to institute
The position coordinates average picture level corresponding with the setting position point for stating setting position point, generates the pending area pair
The average picture level expression formula answered includes：
According to the position coordinates for the setting position point for forming the pending area and the setting position for forming the pending area
A little corresponding average picture level is set, the setting position point to forming the pending area carries out bilinear interpolation processing, raw
At the corresponding average picture level expression formula of the pending area.
3. the average picture level processing method of display device according to claim 2, which is characterized in that described according to shape
Position coordinates at the setting position point of the pending area are corresponding with the setting position point of pending area is formed
Average picture level, the setting position point to forming the pending area carry out bilinear interpolation processing, wait locating described in generation
Managing the corresponding average picture level expression formula in region includes：
According to the position coordinates for the setting position point for forming the pending area and the setting position for forming the pending area
A little corresponding average picture level is set, the setting position point to forming the pending area in a first direction carries out first party
Upward linear interpolation generates the corresponding average picture level expression formula of multiple intermediate position points；
According to the position coordinates of multiple intermediate position points and the corresponding average picture level expression formula of the intermediate position points,
Linear interpolation in second direction is carried out to multiple intermediate position points, generates the corresponding average picture level of interpolation location point
Expression formula, the corresponding average picture level expression formula of the pending area includes the corresponding mean chart of the interpolation location point
As the expression formula of level, the first direction and the second direction are arranged in a crossed manner.
4. the average picture level processing method of display device according to claim 1, which is characterized in that the mean chart
As level processing method further includes：
According to the position coordinates for the setting position point for forming the pending area and the setting position for forming the pending area
A little corresponding average picture level is set, the corresponding average picture level in neighboring area positioned at the pending area periphery is generated
Expression formula.
5. the average picture level processing method of display device according to claim 4, which is characterized in that described according to shape
Position coordinates at the setting position point of the pending area are corresponding with the setting position point of pending area is formed
Average picture level generates the corresponding average picture level expression formula packet in neighboring area positioned at the pending area periphery
It includes：
According to the position coordinates for the setting position point for forming the pending area and the setting position for forming the pending area
A little corresponding average picture level is set, the setting position point to forming the pending area carries out linear interpolation processing, generates
The corresponding average picture level expression formula in neighboring area positioned at the pending area periphery.
6. the average picture level processing method of display device according to claim 5, which is characterized in that the peripheral region
Domain is to form the setting position point of the pending area and side corresponding with the setting position point of pending area is formed
The line being in turn connected to form between edge location point is formed by region, and the neighboring area includes the first neighboring area and second
Neighboring area；The position coordinates according to the setting position point for forming the pending area and the formation pending area
The corresponding average picture level of setting position point, the setting position point to forming the pending area carries out at linear interpolation
Reason, generating the corresponding average picture level expression formula in neighboring area positioned at the pending area periphery includes：
According to the position coordinates for the setting position point for forming the pending area and the setting position for forming the pending area
A little corresponding average picture level is set, the setting position point to forming the pending area in a first direction carries out first party
Upward linear interpolation generates the corresponding average picture level expression formula in the first neighboring area；
According to the position coordinates for the setting position point for forming the pending area and the setting position for forming the pending area
A little corresponding average picture level is set, the setting position point to forming the pending area in a second direction carries out second party
Upward linear interpolation generates the corresponding average picture level expression formula in the second neighboring area.
7. a kind of average picture level processing system of display device, which is characterized in that the display device includes multiple splicings
Screen, the average picture level processing system include：
Acquisition module, for obtaining point corresponding average picture level in setting position in the mosaic screen, wherein multiple setting positions
The line being in turn connected to form between setting a little forms pending area；
Generation module, for described pending according to the position coordinates for the setting position point for forming the pending area and formation
The corresponding average picture level of setting position point in region generates the corresponding average picture level expression of the pending area
Formula.
8. the average picture level processing system of display device according to claim 7, which is characterized in that
The generation module is specifically used for the position coordinates according to the setting position point for forming the pending area and formation institute
The corresponding average picture level of setting position point for stating pending area, the setting position to forming the pending area click through
The processing of row bilinear interpolation, generates the corresponding average picture level expression formula of the pending area.
9. the average picture level processing system of display device according to claim 8, which is characterized in that
The generation module is specifically used for position coordinates and the formation of the setting position point according to the pending area is formed
The corresponding average picture level of setting position point of the pending area, to forming the pending area in a first direction
Setting position point carry out the linear interpolation on first direction, generate the corresponding average picture level expression of multiple intermediate position points
Formula；According to the position coordinates of multiple intermediate position points and the corresponding average picture level expression formula of the intermediate position points,
Linear interpolation in second direction is carried out to multiple intermediate position points, generates the corresponding average picture level of interpolation location point
Expression formula, the corresponding average picture level expression formula of the pending area includes the corresponding mean chart of the interpolation location point
As the expression formula of level, the first direction and the second direction are arranged in a crossed manner.
10. the average picture level processing system of display device according to claim 7, which is characterized in that
The generation module is additionally operable to according to described in the position coordinates for the setting position point for forming the pending area and formation
The corresponding average picture level of setting position point of pending area is generated positioned at the neighboring area on the pending area periphery
Corresponding average picture level expression formula.
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