The content of the invention
It is single at least to solve adjacent display in correlation technique the invention provides a kind of pixel display adjusting method and deviceThere is the display problem of bright line or concealed wire caused by error between the edge pixel spacing and normal pitch of element module.
According to an aspect of the invention, there is provided a kind of pixel display adjusting method, including：Obtain composition light-emitting diodesThe spacing of edge pixel between the adjacent display cell (equivalent to above-mentioned display unit module) of pipe LED display；Compare describedThe spacing of edge pixel and the magnitude relationship of preset standard spacing, wherein, the preset standard spacing is in the display unitThe spacing of adjacent pixel；The display tonal gradation of the edge pixel is adjusted according to comparative result.
Further, adjusting the display tonal gradation of the edge pixel includes：Tonal gradation pair is shown using identicalFirst edge pixel and the second edge pixel adjacent with the first edge pixel are adjusted, wherein, the first edgePixel and the second edge pixel are located in two adjacent display units respectively.
Further, adjusting the display tonal gradation of the edge pixel also includes：It is big in the spacing of the edge pixelIn the case of the normal pitch, place is weighted to the display gray scale of the edge pixel using the weight coefficient more than 1Reason；The edge pixel be smaller than the normal pitch in the case of, using the weight coefficient less than 1 to the edgeThe display gray scale of pixel is weighted processing.
Further, methods described also includes：Display gray scale to adjacent pixel in the display unit is adjusted.
Further, the display gray scale of adjacent pixel inside the display unit module is adjusted including：Using bigProcessing is weighted to the display gray scale of the adjacent pixel in 1 or weight coefficient less than 1.
According to another aspect of the present invention, additionally provide a kind of pixel and show adjusting apparatus, described device includes：ObtainModule, the spacing of the edge pixel between adjacent display cell for obtaining composition LED display screen；Compare mouldBlock, for comparing the spacing of the edge pixel and the magnitude relationship of preset standard spacing, wherein, the preset standard spacing isThe spacing of adjacent pixel in the display unit；First adjusting module, for adjusting the edge pixel according to comparative resultShow tonal gradation.
Further, first adjusting module be also used for identical show tonal gradation to first edge pixel andThe second edge pixel adjacent with the first edge pixel is adjusted, wherein, the first edge pixel and described secondEdge pixel is located in two adjacent display units respectively.
Further, first adjusting module includes：First weighted units are big for the spacing in the edge pixelIn the case of the normal pitch, place is weighted to the display gray scale of the edge pixel using the weight coefficient more than 1Reason；Second weighted units, for the edge pixel be smaller than the normal pitch in the case of, using less than 1Weight coefficient is weighted processing to the display gray scale of the edge pixel.
Further, described device also includes：Second adjusting module, for showing to adjacent pixel in the display unitShow that gray scale is adjusted.
Further, second adjusting module is used to use more than 1 or the weight coefficient less than 1 is to the adjacent pictureThe display gray scale of element is weighted processing.
By the present invention, using the edge pixel obtained between the adjacent display cell for constituting LED display screenSpacing；Compare the spacing of edge pixel and the magnitude relationship of preset standard spacing, wherein, preset standard spacing is display unitThe spacing of interior adjacent pixel；The display tonal gradation of edge pixel is adjusted according to comparative result.Solve adjacent in correlation techniqueThere is error between the edge pixel spacing and normal pitch of display unit module and cause the visual perception of edge pixel to existThe problem of difference, and then can eliminate or improve the overall brightness uniformity of display screen.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that not conflictingIn the case of, the feature in embodiment and embodiment in the application can be mutually combined.
A kind of pixel display adjusting method is provided in the present embodiment, and Fig. 1 is that pixel according to embodiments of the present invention showsShow the flow chart of method of adjustment, as shown in figure 1, the flow comprises the following steps：
Step S102, obtains the spacing of the edge pixel between the adjacent display cell of composition LED display screen；
Step S104, compares the spacing of edge pixel and the magnitude relationship of preset standard spacing, wherein, preset standard spacingFor the spacing of adjacent pixel in display unit；
Step S106, the display tonal gradation of edge pixel is adjusted according to comparative result.
By above-mentioned steps, according to adjacent pixel inside the spacing of the edge pixel of adjacent display cell and display unitThe magnitude relationship of spacing, adjusts the display gray scale of edge pixel, solves the edge of adjacent display cell module in correlation techniqueThere is error between pel spacing and normal pitch and cause the problem of visual perception of edge pixel has differences, and then reachThe edge pixel of the display unit module effect with the visual perception of display unit module interior pixels roughly the same.
Above-mentioned steps S106 be related to according to comparative result adjust edge pixel display tonal gradation, it is necessary to illustrateIt is that the mode that the display gray scale to edge pixel is adjusted can have many kinds, and this is illustrated below.At oneIn alternative embodiment, show tonal gradation to first edge pixel and adjacent with the first edge pixel second using identicalEdge pixel is adjusted, wherein, first edge pixel and second edge pixel are located in two adjacent display units respectively.It thereby may be ensured that the display effect of the edge pixel of display unit is roughly the same with the display effect of display unit interior pixels,Eliminate the difference of visual perception.
In the related art, in the case where the spacing of edge pixel is more than preset standard spacing, display is often shownDark visual perception is crossed, now, in one alternate embodiment, the display using the weight coefficient more than 1 to the edge pixelGray scale is weighted processing, so as to remove the visual perception of edge concealed wire or dim spot.Edge pixel be smaller than it is pre-If in the case of normal pitch, often showing to show bright visual perception, now, in one alternate embodiment, useWeight coefficient less than 1 is weighted processing to the display gray scale of edge pixel, so as to remove edge bright line or bright spotVisual perception.
In one alternate embodiment, the display gray scale of adjacent pixel in display unit can also be adjusted.For example,The brightness that can realize pixel in display unit by this adjustment is gradually changed, so as to realize that it is various that LED screen is shownProperty.
During being adjusted to the display gray scale of display unit module inside adjacent pixel, using more than 1 orWeight coefficient less than 1 is weighted processing to the display gray scale of adjacent pixel, so as to have adjusted display unit interior pixelsDisplay brightness.
A kind of pixel is additionally provided in the present embodiment and shows adjusting apparatus, and the device is used to realize above-described embodiment and excellentEmbodiment is selected, repeating no more for explanation had been carried out.As used below, term " module " can realize predetermined functionSoftware and/or hardware combination.Although the device described by following examples is preferably realized with software, hardware,Or the realization of the combination of software and hardware is also that may and be contemplated.
Fig. 2 is the structured flowchart that pixel according to embodiments of the present invention shows adjusting apparatus, as shown in Fig. 2 the device bagInclude：Between acquisition module 22, the edge pixel between adjacent display cell for obtaining composition LED display screenAway from；Comparison module 24, for comparing the spacing of edge pixel and the magnitude relationship of preset standard spacing, wherein, between preset standardAway from the spacing for adjacent pixel in display unit；First adjusting module 26, for adjusting the aobvious of edge pixel according to comparative resultShow tonal gradation.
Alternatively, the first adjusting module 26 be also used for identical show tonal gradation to first edge pixel and with thisThe adjacent second edge pixel of first edge pixel is adjusted, wherein, first edge pixel and second edge pixel difference positionIn two adjacent display units.
Fig. 3 is the structured flowchart (one) that pixel according to embodiments of the present invention shows adjusting apparatus, as shown in figure 3, firstAdjusting module 26 includes：First weighted units 262, in the case of being more than normal pitch in the spacing of edge pixel, are usedWeight coefficient more than 1 is weighted processing to the display gray scale of the edge pixel；Second weighted units 264, on the sideEdge pixel be smaller than the normal pitch in the case of, using display gray scale of the weight coefficient less than 1 to the edge pixelIt is weighted processing.
Fig. 4 is the structured flowchart (two) that pixel according to embodiments of the present invention shows adjusting apparatus, as shown in figure 4, the dressPut in addition to including all modules shown in Fig. 2, in addition to：Second adjusting module 42, for adjacent pixel in display unitDisplay gray scale is adjusted.
Alternatively, the second adjusting module 42 is used to use more than 1 or the weight coefficient less than 1 shows to the adjacent pixelShow that gray scale is weighted processing.
It should be noted that above-mentioned modules can be by software or hardware to realize, for the latter, Ke YitongCross in the following manner realization, but not limited to this：Above-mentioned modules are respectively positioned in same processor；Or, above-mentioned modules pointWei Yu not be in first processor, second processor and the 3rd processor ....
For above mentioned problem present in correlation technique, illustrated with reference to alternative embodiment, in this optional implementationAbove-mentioned alternative embodiment and its optional embodiment are combined in example.
This alternative embodiment proposes a kind of by way of data processing, the display unit module presence to splicing LEDIn the range of certain reasonable error, the influence watched vision is eliminated or reduced.
In undergraduate course selects embodiment, the gray proces of pointwise by-line are carried out to edge pixel, when adjacent display cell moduleEdge pixel when being smaller than normal pitch, often show to show bright visual perception, by reducing edge pixelDisplay tonal gradation to remove edge bright line or the visual angle sense organ of bright spot, when between the edge pixel of adjacent display cell moduleDuring away from more than normal pitch, often show to show dark visual perception, by the display tonal gradation for providing edge pixelSo that removing the visual angle sense organ of edge concealed wire or dim spot.This processing mode causes splicing LED screen in overall display pictureBrightness evenly, improves the effect of seamless tiled display.
Fig. 5 is LED screen composition structure chart according to embodiments of the present invention, as shown in figure 5, the size and physics of display screen pointResolution is the integral multiple of single display unit module, when more display units are spliced into display screen, then can constitute chiVery little bigger, between the higher mosaic screen of resolution ratio, but adjacent display unit module there is interval error in edge pixel.
Fig. 6 is the dot structure figure between display unit according to embodiments of the present invention, is shown as shown in fig. 6, Fig. 6 is 4Show the splicing schematic diagram of unit module, wherein circle is pixel, due to the presence of display unit stitching error, 5 in upper figurePel spacing is often different, because error is different after the splicing of each two spliced display unit module, so adjacent pixelThere is difference in the size of spacing, such as spacing P2 is normal pitch, and pel spacing P0, P1, P3, P4 can have difference, haveOne rational error.If P0's is smaller than P2, then in display image, human eye may feel that display unit module 1It is partially brighter when showing identical image between the left column of right column pixel and display unit module 2.
If on the contrary, P0 spacing is more than P2, then in display image, human eye may feel that display unit module 1 mostBetween the left column of right row pixel and display unit module 2 when showing identical image partially it is dark a bit.Remaining display unit andThe size of adjacent pixel spacing and visual perception are similar between display unit, in order to handle this function, this alternative embodimentMode is weighted using the pixel to each display unit to handle.
Fig. 7 is dot structure figure in display unit according to embodiments of the present invention, as shown in fig. 7, to each pixelHave a weight coefficient, such as weight coefficient of pixel (0,0) is P00, by that analogy, use the weight coefficient of benchmark for n (such as1 or 0.8), the edge adjacent pixel of such as pixel of first row and adjacent display cell on the left of it causes to show due to interval errorWhen showing that visual perception is excessively bright, the present invention is weighted using the weight coefficient of mxn (m is less than 1) to its display data gray scale, simultaneouslyWeighting to its adjacent edge pixels is changed to mxn mode simultaneously, so it can be seen that human eye is imperceptible in actual displayedBright line, conversely, such as the pixel of first row with the edge adjacent pixel of its left side adjacent display cell because interval error causes to showWhen showing that visual perception is excessively dark, its display data gray scale is weighted using mxn (m is more than 1) weight coefficient, while to its phaseThe mode for being weighted to mxn of adjacent edge pixel, so can see the imperceptible concealed wire of human eye in actual displayed, formula is such asUnder：
B '=B × m × n
G '=G × m × n
R '=R × m × n
Wherein R ', G ', B ' are the obtained pixel red-green-blue gray values of processing, for m adjustment according to actualSplicing effect is set, and because different stitching errors causes the bright effect secretly felt of human eye different, can be set by adjustmentThe value for determining M is carried out, in actual splicing in use, the mainly spacing of display unit edge pixel, due to being the pixel at 4 anglesThere is error in point spacing, therefore often adjust the m values of edge pixel, and due to adjust the pixel at four angles, it setsIn the presence of difference, in pixel internally, because the pel spacing in display unit module is normal pitch, therefore it is usually set to1, but this alternative embodiment reserves the parameter of its setting, i.e., can also set.Fig. 8 is according to embodiments of the present invention pixel to be enteredThe schematic diagram of row adjustment, as shown in figure 8, for the method for preferably eliminating this bright line or concealed wire, not only at setting edgeThe m values of pixel, and its adjacent pixel m value in same display unit can be set, the value of a gradual transition is produced, thanThe 1st row such as display unit are set as m1, and its 2nd row is set as m2, and the 3rd row are set as m3, successively excessively to 1, such as m1 settingsFor 0.8 when, then it is that 1 and its later value remain 1 that m2, which is 0.9, m3, the problem of so preferably can handling bright concealed wire.
Fig. 9 is the process chart according to embodiments of the present invention being adjusted to pixel.Video data flows through gamma schoolAfter just, the data bit of the every kind of primary colours of RGB three primary colours expands to 16 by 8 or 10 (depending on tonal gradations), and data are enteredThe border processing method of this alternative embodiment proposition is carried out after row single point correction, i.e., is spliced according to actual display unit moduleEffect carries out the setting of parameter, and data bit remains as the data gray of every kind of primary colours of 16 after processing.Gray scale is kept not damageLose.
In summary, the processing by the present invention to edge image, solves adjacent picture between display unit module splicingCaused vision non-uniformity problem of the plain spacing within the scope of reasonable error, improves the small spacing all-colour LED of splicing and showsThe image displaying quality of screen.
In another embodiment, a kind of software is additionally provided, the software is used to perform above-described embodiment and preferred realApply the technical scheme described in mode.
In another embodiment, a kind of storage medium is additionally provided, be stored with above-mentioned software in the storage medium, shouldStorage medium includes but is not limited to：CD, floppy disk, hard disk, scratch pad memory etc..
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with generalComputing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and constitutedNetwork on, alternatively, the program code that they can be can perform with computing device be realized, it is thus possible to they are storedPerformed in the storage device by computing device, and in some cases, can be shown to be performed different from order hereinThe step of going out or describe, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them orStep is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this areaFor art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiiesChange, equivalent substitution, improvement etc., should be included in the scope of the protection.