CN108538246A - Display screen matrix data capture method and device, pixel compensation method and system - Google Patents
Display screen matrix data capture method and device, pixel compensation method and system Download PDFInfo
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- CN108538246A CN108538246A CN201810362275.8A CN201810362275A CN108538246A CN 108538246 A CN108538246 A CN 108538246A CN 201810362275 A CN201810362275 A CN 201810362275A CN 108538246 A CN108538246 A CN 108538246A
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
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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
- G09G2340/00—Aspects of display data processing
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Abstract
The invention belongs to display technology fields, and in particular to display screen matrix data capture method, display screen matrix data acquisition facility and pixel compensation method, pixel compensation system.The display screen matrix data capture method, including step：Acquisition includes the screen shot of all pixels；Determine the virtual vertex of the screen in the screen shot；The coordinate of each pixel in effective display area of the screen is calculated according to the virtual vertex；It is the corresponding optical information of each pixel configuration in the screen according to the coordinate of each pixel in effective display area and the screen shot.The display screen matrix data capture method, display screen matrix data acquisition facility are not only restricted to the shape of screen quadrangle, the virtual vertex of four straight flanges by obtaining on-right angle screen, to obtain the luminance information of each pixel of effective display area in display screen.
Description
Technical field
The invention belongs to display technology fields, and in particular to display screen matrix data capture method, display screen matrix data
Acquisition device and pixel compensation method, pixel compensation system.
Background technology
With the development of science and technology, panel display apparatus increasingly gos deep into daily life.Common tablet
Display device includes LCD (Liquid Crystal Display：Liquid crystal display device) and OLED (Organic Light-
Emitting Diode:Organic Light Emitting Diode) display device.
Panel display apparatus can be mobile phone, PDA, GPS, car-mounted display, Projection Display, video camera, digital camera, electronics
Wrist-watch, calculator, electronic instrument/instrument, Electronic Paper, television set, display, Digital Frame, navigator etc. are any to have display
The product or component of function.Based on different application scenarios and aesthetic reasons, corner is had also appeared at present and is set as arc-shaped
Fillet (Round Corner) screen.
It being limited by process conditions, it is bad that display screen may have a uniform image retention of brightness disproportionation, to solve both of these problems,
It is limited in process improving, it can be compensated using optical compensation technology.In optical compensation technology, usually pass through
Shooting style carries out pixel crawl (Pixel Capture), to obtain the optical information of each pixel in display screen.With
The popularization of fillet screen can only use the mode of single pixel search to capture at present due to the uniqueness of pixel within the scope of corner
Pixel, then the optical information of pixel is obtained, lead to inefficiency.
As it can be seen that provide it is a kind of be suitable for be not only restricted to screen quadrangle shape, the optical information of pixel can be quickly obtained
Method become a technical problem to be solved urgently.
Invention content
The technical problem to be solved by the present invention is to be directed to above-mentioned deficiency in the prior art, display screen matrix data are provided and are obtained
Method, display screen matrix data acquisition facility and pixel compensation method, pixel compensation system are taken, the display screen matrix data acquisition
Method, display screen matrix data acquisition facility are not only restricted to the shape of screen quadrangle, and can be quickly obtained the optics letter of each pixel
Breath.
Technical solution is the display screen matrix data capture method, including step used by solving present invention problem
Suddenly：
Acquisition includes the screen shot of all pixels；
Determine the virtual vertex of the screen in the screen shot；
The coordinate of each pixel in effective display area of the screen is calculated according to the virtual vertex；
It is each pixel configuration pair in the screen according to the coordinate of each pixel in effective display area and the screen shot
The optical information answered.
Preferably, determine that the virtual vertex of the screen in the screen shot includes step：
At least two characteristic points of each selection are distinguished at least two adjacent straight flanges of the screen described in the screen shot；
According to the coordinate of the characteristic point on each straight flange, the equation of the corresponding straight line of each straight flange is fitted, adjacent two is straight
Corresponding one and only one intersection point of two straight lines in side；
The intersection point of corresponding two straight line of at least two-phase neighbour straight flange is determined as to the virtual vertex of virtual right angle screen.
Preferably, it is special that each selection at least two is distinguished on four adjacent straight flanges of the screen described in the screen shot
Sign point；
Correspondingly, the intersection point of corresponding two straight line of four straight flanges adjacent two-by-two is determined as four virtual vertexs.
Preferably, when the intersection point of adjacent two straight line being determined as the virtual vertex of virtual right angle screen, each pixel
Coordinate where the origin of coordinate system be the arbitrary virtual vertex.
A kind of display screen matrix data acquisition facility, including screen obtain structure, apex angle setting structure, pixel coordinate and calculate
Structure and optical information configuration structure, wherein：
The screen obtains structure：For obtain include all pixels screen shot；
The apex angle setting structure：The screen shot is received, for determining the virtual of the screen in the screen shot
Vertex；
The pixel coordinate calculates structure：Each picture in effective display area for calculating the screen according to the virtual vertex
The coordinate of element；
The optical information configuration structure：For according to each pixel in effective display area coordinate and the screen shot, be
The corresponding optical information of each pixel configuration in the screen.
Preferably, the apex angle setting structure includes straight flange point selection minor structure, fitting a straight line minor structure, apex angle determination
Minor structure, wherein：
Straight flange point selects minor structure：On at least two adjacent straight flanges of the screen described in the screen shot respectively
It is each to choose at least two characteristic points；
Fitting a straight line minor structure：For the coordinate according to the characteristic point on each straight flange, it is corresponding straight to fit each straight flange
The equation of line, corresponding one and only one intersection point of two straight lines of two adjacent straight flanges；
The apex angle determines minor structure：It is virtual straight for the intersection point of corresponding two straight line of at least two-phase neighbour straight flange to be determined as
The virtual vertex of angle screen.
Preferably, in the straight flange point selection minor structure, four adjacent straights of the screen described in the screen shot
At least two characteristic points of each selection are distinguished on side；
Correspondingly, the apex angle determines in minor structure, the intersection point of corresponding two straight line of four straight flanges adjacent two-by-two is true
It is set to four virtual vertexs.
Preferably, the apex angle determines in minor structure, and the origin of coordinate system is arbitrary where the coordinate of each pixel
The virtual vertex.
A kind of pixel compensation method, including above-mentioned display screen matrix data capture method.
A kind of pixel compensation system, including above-mentioned display screen matrix data acquisition facility.
The beneficial effects of the invention are as follows：
The display screen matrix data capture method and device can fast and accurately obtain four straight flanges of on-right angle screen
Virtual vertex, to obtain the luminance information of each pixel of effective display area in display screen, the display screen matrix data recipient
Method is common to the pixel identification of the screen of a variety of square shapes, greatly improves the efficiency for fillet screen scraping pixel of taking pictures；
The pixel compensation method and system, according to the luminance information of each pixel of effective display area in the display screen of acquisition,
It compares and determines its luminance deviation, to carry out optical compensation to display screen.
Description of the drawings
Fig. 1 is the geometric representation of the exemplary fillet screen of the present invention；
Fig. 2 is the flow chart of display screen matrix data capture method in the embodiment of the present invention 1；
Fig. 3 is the structure diagram of display screen matrix data acquisition facility in the embodiment of the present invention 2；
Fig. 4 is the structural schematic diagram of pixel compensation system in the embodiment of the present invention 4；
In attached drawing mark：
1- screens obtain structure；
2- apex angle setting structures；21- straight flange points select minor structure；22- fitting a straight line minor structures；23- apex angles determine son knot
Structure；
3- pixel coordinates calculate structure；
4- optical information configuration structures；
The effective display area 51-；52- frames；53- virtual boundaries；54- virtual vertexs.
Specific implementation mode
To make those skilled in the art more fully understand technical scheme of the present invention, below in conjunction with the accompanying drawings and specific embodiment party
Formula mends display screen matrix data capture method of the present invention, display screen matrix data acquisition facility and pixel compensation method, pixel
The system of repaying is described in further detail.
In order to adapt to different application scenarios or appearance, there is the screen of some special shapes.For example, fillet screen can
Screen right angle missing can be will produce, effective display area includes multiple straight flanges, and without the friendship to intersect vertically between arbitrary two straight flange
Point leads to not the coordinate that each pixel is extrapolated according to the coordinate of display screen quadrangle.The technical concept of the application is：For on-right angle
Screen constructs virtual apex angle, and the screen of arbitrary shape is standardized as right angle screen, to rapid extraction display screen matrix coordinate
Information, and then carry out the extraction of many kinds of parameters such as the optical information as unit of pixel.
Embodiment 1：
The present embodiment provides one kind being used for on-right angle display screen, such as the display screen matrix data recipient of fillet screen
Method, this method are found out the square position of missing using four side information of screen, improve pixel coordinate acquisition speed, can effectively improved
The efficiency for fillet screen scraping pixel of taking pictures, while improving the efficiency for obtaining each pixel optics information.
As shown in the geometric representation of the fillet screen of Fig. 1, even fillet screen, effective display area 51 (areas AA)
Edge is maintained as straight border, therefore, straight line intersection can be utilized to form right angle, to construct virtual right angle screen boundary
Right angle, to confine all pixels in screen completely.
As shown in Fig. 2, the display screen matrix data capture method includes following process flow：
Step S1)：Acquisition includes the screen shot of all pixels.
In this step, which is obtained when screen is lighted by the way of camera, ccd image sensor shooting
.The screen shot can not include the entity frame 52 of display screen, but include at least the effective display area 51 of entire screen,
Namely including all pixels.
Step S2)：Determine the virtual vertex of the screen in screen shot.
Determine that the virtual vertex 54 of the screen in screen shot specifically includes following sub-step：
Step S21)：At least two features of each selection are distinguished at least two adjacent straight flanges of screen in screen shot
Point.
In this step, the edge of the edge of screen namely effective display area in the screen shot is identified first, specifically may be used
Screen border is obtained by any one of the following two kinds method：One is right after showing that the display screen of pure color picture is taken pictures
Screen shot uses frequency domain high-pass filtering method, to obtain the edge of screen；One is to showing that the display screen of pure color picture is clapped
According to rear, space interpolation is done to the pixel in photo, chooses and regards as effective display area with the larger point of neighboring pixel luminance difference
51 (areas AA) edges, to obtain the edge of screen.Certainly, specific processing method is not limited to both the above method, can also
Using other ripe edge extracting methods, it is not limited here.
After identifying screen border, each selection is distinguished at least at least two adjacent straight flanges of screen in screen shot
Two characteristic points, to construct corresponding two straight lines.For example, dividing in each straight border of screen that can be shown in Fig. 1
At least two characteristic points are not chosen not respectively, to construct corresponding four straight lines.To the selection of characteristic point without specific demand, and should
Characteristic point is located at the region that noneffective display area 51 is inwardly recessed relative to outer edge, i.e., can not be located on fillet.To prevent from selecting
The characteristic point taken is fallen on fillet, influences the accuracy of the equation of fitting a straight line in subsequent step, can be according to the areas AA obtained
General profile determines rough characteristic point coordinate range, and selectes characteristic point in this coordinate range.
Step S22)：According to the coordinate of characteristic point on each straight flange, the equation of the corresponding straight line of each straight flange is fitted, it is adjacent
Corresponding one and only one intersection point of two straight lines of two straight flanges.
Due to being only difficult to determine the angular deviation put when screen shot with a virtual vertex, and determine screen
The size correspondence of photo and actual screen, therefore two virtual vertexs are at least needed, pass through the ginseng of the two virtual vertexs
Number, then find the coordinate of all pixels on screen.
Under normal conditions, display screen is symmetrical structure, while carrying out limb recognition to screen shot, can be calculated
The symmetry axis or symmetrical centre of screen.In this step, after constructing corresponding two straight lines, you can obtain an intersection point.Root
According to the shape of screen quadrangle, can be obtained and screen on the basis of the intersection point, according to the axial symmetry or centre symmetry of screen
The identical intersection point of number of edges quantity.
Alternatively, at least two characteristic points of each selection are distinguished at least three adjacent straight flanges of screen in screen shot；Root
According to the coordinate of characteristic point on each straight flange, the equation of the corresponding straight line of each straight flange, corresponding two straight line of two adjacent straight flanges are fitted
One and only one intersection point；The intersection point of corresponding two straight line of at least three adjacent straight flange is determined as to two void of virtual right angle screen
Quasi- vertex, and then obtain intersection point identical with screen number of edges quantity.
For example, when distinguishing at least two characteristic point of each selection in each straight border of screen, according to feature on each straight flange
The coordinate of point, fits the equation of straight line L1, L2, L3 and L4 of virtual boundary 53, straight line L1, L2, L3 and L4 intersect two-by-two.It is excellent
Choosing, two opposite straight lines are (such as L1, L3 are parallel to each other, and L2, L4 are parallel to each other) parallel to each other, and two straight lines of intersection are mutual
Vertically (such as L1 and L2 is orthogonal, and L2 is orthogonal with L3, and L3 is orthogonal with L4, and L4 and L1 is orthogonal).
To improve fitting precision, characteristic point should disperse as possible, can also increase feature point number in the case of conditions permit.
Step S23)：The intersection point of corresponding two straight line of at least two-phase neighbour straight flange is determined as to the virtual top of virtual right angle screen
Point.
In this step, according to linear equation, the intersection point of corresponding two straight line of four straight flanges adjacent two-by-two is determined as
Four virtual vertexs 54.Intersection point A1, A2, A3, the A4 for intersecting straight line L1, L2, L3 and L4 two-by-two, A1, A2, A3, A4 are determined
Four virtual vertexs 54 when for screen angle being right angle.
Can be origin by first pixel definition transmitted in every frame picture for convenience of the processing of description display data stream
Coordinate, i.e., the origin of coordinate system is arbitrary virtual vertex 54 where the coordinate of each pixel, after some right-angled apices is considered as origin,
The coordinate of all pixels is positive number at this time.Step S22) in not yet determine right-angled apices position, it is contemplated that in this step really
Origin is defined after determining virtual right angle vertex.
Step S3)：The coordinate of each pixel in effective display area of screen is calculated according to virtual vertex.
In this step, according to virtual vertex A1, A2, A3, A4, it is each that the case where according to screen quadrangle being right angle, calculates the areas AA
Pixel coordinate.If the straight border for the display screen that photograph taking arrives is without apparent distortion, the method that linear difference can be used directly.
If using the bigger error of linear equation fitting a straight line L1, L2, L3 and L4, can be fitted using curvilinear equation.For into
One step ensures precision, can repeat to walk after shape distortion (such as pincushion distortion, barrel distortion) caused by amendment screen shot shooting
Rapid S2), the method for reusing linear interpolation.
Step S4)：It is that each pixel configuration is corresponding in screen according to the coordinate and screen shot of each pixel in effective display area
Optical information.
In this step, it is distributed according to 51 each pixel coordinate position of effective display area and brightness of display screen, is each pixel
Corresponding configuration brightness data.
Wherein, for the pixel of the areas AA other parts, first the bright of each coordinate is acquired for the case where right angle according to the areas AA quadrangle
Spend information.For the pixel on display screen circular arc, the measured value of brightness data is the output valve in respective pixel region in photo,
Any processing need not be done.For corresponding pixel outside display screen circular arc, due to these pixels because setting fillet is practical not
In the presence of, therefore the negligible corresponding pixel intensity in the region.In other words, due to the known pixel left out in design, can not be
These pixel configuration brightness datas.
Virtual apex angle is arranged by selected characteristic point fitting a straight line in the display screen of on-right angle in the present embodiment, can be with
It accurately divides and obtains the luminance information of each pixel in screen, some pixels are eliminated since the areas AA fillet is practical, it can be according to aobvious
The Pixel Information that display screen is left out when designing, gives up the luminance information of the pixel deleted.
The display screen matrix data capture method of the present embodiment can fast and accurately obtain four straight flanges of on-right angle screen
Virtual vertex, to obtain the luminance information of each pixel of effective display area in display screen, the display screen matrix data acquisition
Method is common to the pixel identification of the screen of various shapes, greatly improves the efficiency for fillet screen scraping pixel of taking pictures.
Embodiment 2：
The present embodiment provides one kind being used for on-right angle display screen, such as the display screen matrix data acquisition dress of fillet screen
It sets, which finds out the square position of missing using four side information of screen, improves pixel coordinate acquisition speed, can effectively improve
The efficiency for fillet screen scraping pixel of taking pictures, while improving the efficiency for obtaining each pixel optics information.
As shown in the geometric representation of the fillet screen of Fig. 1, even fillet screen, effective display area 51 (areas AA)
Edge is maintained as straight border, therefore, straight line intersection can be utilized to form right angle, to construct the straight of virtual right angle screen circle
Angle, to confine all pixels in screen completely.
As shown in figure 3, the display screen matrix data acquisition facility includes：Screen obtain structure 1, apex angle setting structure 2, as
Plain coordinate calculates structure 3 and optical information configuration structure 4, wherein：
Screen obtains structure 1：For obtain include all pixels screen shot.
It can be the device with shooting function such as camera, ccd image sensor that the screen, which obtains structure 1,.That is the screen
Photo is obtained when screen is lighted by the way of camera, ccd image sensor shooting.The screen shot can not include aobvious
The entity frame 52 (frame 52 is the oblique line fill part in Fig. 1) of display screen, but including at least entire effective display area 51
Screen, to include all pixels.
Apex angle setting structure 2：Receive screen shot, the virtual vertex 54 for determining the screen in screen shot.Apex angle
Setting structure 2 determines minor structure 23 including straight flange point selection minor structure 21, fitting a straight line minor structure 22, apex angle, wherein：
Straight flange point selects minor structure 21：For each selection to be distinguished at least two adjacent straight flanges of screen in screen shot
At least two characteristic points.The edge of the edge of screen namely effective display area in the screen shot is identified first, can specifically be passed through
Any one of the following two kinds method obtains screen border：One is after showing that the display screen of pure color picture is taken pictures, to screen
Photo uses frequency domain high-pass filtering method, to obtain the edge of screen；One is to showing that the display screen of pure color picture is taken pictures
Afterwards, space interpolation is done to the pixel in screen shot, chooses the point larger with neighboring pixel luminance difference and regards as effectively showing
Area 51 (areas AA) edge, to obtain the edge of screen.Certainly, specific processing method is not limited to both the above method, also may be used
Using other ripe edge extracting methods, not to be limited here.
After identifying screen border, each selection is distinguished at least at least two adjacent straight flanges of screen in screen shot
Two characteristic points, to construct corresponding two straight lines.For example, dividing in each straight border of screen that can be shown in Fig. 1
At least two characteristic points are not chosen not respectively, to construct corresponding four straight lines.To the selection of characteristic point without specific demand, and should
Characteristic point is located at the region that noneffective display area 51 is inwardly recessed relative to outer edge, i.e., can not be located on fillet.To prevent from selecting
The characteristic point taken is fallen on fillet, influences the accuracy of the equation of fitting a straight line in subsequent step, can be according to the areas AA obtained
General profile determines rough characteristic point coordinate range, and selectes characteristic point in this coordinate range.
Fitting a straight line minor structure 22：For the coordinate according to characteristic point on each straight flange, the corresponding straight line of each straight flange is fitted
Equation, corresponding one and only one intersection point of two straight lines of two adjacent straight flanges.Fitting a straight line minor structure 22 constructs corresponding
After two straight lines, you can obtain an intersection point.It, can be on the basis of the intersection point, according to screen according to the shape of screen quadrangle
Axial symmetry or centre symmetry obtain intersection point identical with screen number of edges quantity.For example, dividing in each straight border of screen
When not respectively choosing at least two characteristic points, according to the coordinate of characteristic point on each straight flange, fit virtual boundary 53 straight line L1,
The equation of L2, L3 and L4, straight line L1, L2, L3 and L4 intersect two-by-two.Preferably, two opposite straight lines it is parallel to each other (such as
L1, L3 are parallel to each other, and L2, L4 are parallel to each other), two straight lines of intersection are orthogonal, and (such as L1 and L2 is orthogonal, and L2 is mutual with L3
Perpendicular, L3 is orthogonal with L4, and L4 and L1 is orthogonal).To improve fitting precision, characteristic point should disperse as possible, condition
Feature point number can also be increased in the case of permission.
Apex angle determines minor structure 23：For the intersection point of corresponding two straight line of at least two-phase neighbour straight flange to be determined as virtual right angle
The virtual vertex 54 of screen.Apex angle determines minor structure 23 according to linear equation, directly by four straight flanges corresponding two adjacent two-by-two
The intersection point of line is determined as four virtual vertexs 54.Intersection point A1, A2, A3, the A4 for intersecting straight line L1, L2, L3 and L4 two-by-two,
A1, A2, A3, A4 are determined as four virtual vertexs 54 when screen angle is right angle.
Can be origin by first pixel definition transmitted in every frame picture for convenience of the processing of description display data stream
Coordinate, i.e., the origin of coordinate system is arbitrary virtual vertex 54 where the coordinate of each pixel, after some right-angled apices is considered as origin,
The coordinate of all pixels is positive number at this time.Right-angled apices position is not yet determined in fitting a straight line minor structure 22, it is contemplated that at this
Apex angle determines in minor structure 23 defines origin behind determining virtual right angle vertex.
Pixel coordinate calculates structure 3：Seat for the 51 each pixel of effective display area for calculating screen according to virtual vertex 54
Mark.According to virtual vertex A1, A2, A3, A4, each pixel coordinate in the areas AA is calculated for the case where right angle according to screen quadrangle.
If the straight border for the display screen that photograph taking arrives is without apparent distortion, the method that linear difference can be used directly.
If using the bigger error of linear equation fitting a straight line L1, L2, L3 and L4, can be fitted using curvilinear equation.For into
One step ensures precision, after shape distortion (such as pincushion distortion, barrel distortion) caused by being shot in amendment, passes through apex angle and sets knot
Structure 2 constantly corrects the position of virtual vertex 54, the method for reusing linear interpolation.
Optical information configuration structure 4：It is screen for the coordinate and screen shot according to 51 each pixel of effective display area
In the corresponding optical information of each pixel configuration.It is distributed according to 51 each pixel coordinate position of effective display area and brightness of display screen, is
Each pixel corresponds to configuration brightness data.
Wherein, for the pixel of the areas AA other parts, first the bright of each coordinate is acquired for the case where right angle according to the areas AA quadrangle
Spend information.For the pixel on display screen circular arc, the measured value of brightness data is the output valve in respective pixel region in photo,
Any processing need not be done.For corresponding pixel outside display screen circular arc, due to these pixels because setting rounded corner is practical simultaneously
It is not present, therefore the negligible corresponding pixel intensity in the region.It in other words, can not due to the known pixel left out in design
For these pixel configuration brightness datas.
Display screen matrix data acquisition facility in the present embodiment can be computer, and the display screen of on-right angle passes through choosing
Characteristic point fitting a straight line is taken virtual apex angle is arranged, can accurately divide to obtain the luminance information of each pixel in screen, due to
The areas AA rounded corner is practical to eliminate some pixels, and the Pixel Information left out when can be according to design of LED gives up the picture deleted
The luminance information of element.
The display screen matrix data acquisition facility of the present embodiment can fast and accurately obtain four straight flanges of on-right angle screen
Virtual vertex, to obtain the luminance information of each pixel of effective display area in display screen, the display screen matrix data acquisition
Device is common to the pixel identification of the screen of various shapes, greatly improves the efficiency for fillet screen scraping pixel of taking pictures.
Embodiment 3：
The present embodiment provides a kind of pixel compensation method, which includes the display screen matrix in embodiment 1
Data capture method.
The pixel compensation method is believed according to the brightness of each pixel of effective display area in the display screen obtained in embodiment 1
Breath compares and determines its luminance deviation, to carry out optical compensation to display screen.
Embodiment 4：
The present embodiment provides a kind of pixel compensation system, which includes the display screen matrix in embodiment 2
Data acquisition facility.
With structure shown in Fig. 4 as an example, the display screen of round is AMOLED modules, lighted by lighting machine；CDD
Imaging sensor takes pictures to AMOLED modules；Display screen matrix data acquisition facility, that is, computer by CDD images to being passed
The screen shot that sensor obtains is handled, and the virtual vertex of four straight flanges of on-right angle screen is obtained, to obtain AMOLED moulds
The luminance information of each pixel of effective display area in group display screen.
The pixel compensation system is believed according to the brightness of each pixel of effective display area in the display screen obtained in embodiment 2
Breath compares and determines its luminance deviation, to carry out optical compensation to display screen.
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 display screen matrix data capture method, which is characterized in that including step：
Acquisition includes the screen shot of all pixels；
Determine the virtual vertex of the screen in the screen shot；
The coordinate of each pixel in effective display area of the screen is calculated according to the virtual vertex；
It is that each pixel configuration is corresponding in the screen according to the coordinate of each pixel in effective display area and the screen shot
Optical information.
2. display screen matrix data capture method according to claim 1, which is characterized in that determine in the screen shot
The virtual vertex of screen include step：
At least two characteristic points of each selection are distinguished at least two adjacent straight flanges of the screen described in the screen shot；
According to the coordinate of the characteristic point on each straight flange, the equation of the corresponding straight line of each straight flange, two adjacent straight flanges pair are fitted
Two straight lines one and only one intersection point answered；
The intersection point of corresponding two straight line of at least two-phase neighbour straight flange is determined as to the virtual vertex of virtual right angle screen.
3. display screen matrix data capture method according to claim 2, which is characterized in that the institute in the screen shot
It states and distinguishes at least two characteristic points of each selection on four adjacent straight flanges of screen；
Correspondingly, the intersection point of corresponding two straight line of four straight flanges adjacent two-by-two is determined as four virtual vertexs.
4. display screen matrix data capture method according to claim 2, which is characterized in that by the intersection point of adjacent two straight line
When being determined as the virtual vertex of virtual right angle screen, the origin of coordinate system where the coordinate of each pixel is arbitrary described virtual
Vertex.
5. a kind of display screen matrix data acquisition facility, which is characterized in that including screen obtain structure, apex angle setting structure, as
Plain coordinate calculates structure and optical information configuration structure, wherein：
The screen obtains structure：For obtain include all pixels screen shot；
The apex angle setting structure：The screen shot is received, the virtual vertex for determining the screen in the screen shot；
The pixel coordinate calculates structure：Each pixel in effective display area for calculating the screen according to the virtual vertex
Coordinate；
The optical information configuration structure：For according to each pixel in effective display area coordinate and the screen shot, be described
The corresponding optical information of each pixel configuration in screen.
6. display screen matrix data acquisition facility according to claim 5, which is characterized in that the apex angle setting structure packet
It includes straight flange point selection minor structure, fitting a straight line minor structure, apex angle and determines minor structure, wherein：
Straight flange point selects minor structure：Each choosing is distinguished at least two adjacent straight flanges of the screen described in the screen shot
Take at least two characteristic points；
Fitting a straight line minor structure：For the coordinate according to the characteristic point on each straight flange, the corresponding straight line of each straight flange is fitted
Equation, corresponding one and only one intersection point of two straight lines of two adjacent straight flanges；
The apex angle determines minor structure：For the intersection point of corresponding two straight line of at least two-phase neighbour straight flange to be determined as virtual right angle screen
The virtual vertex of curtain.
7. display screen matrix data acquisition facility according to claim 6, which is characterized in that the straight flange point selection son knot
In structure, at least two characteristic points of each selection are distinguished on four adjacent straight flanges of the screen described in the screen shot；
Correspondingly, the apex angle determines in minor structure, the intersection point of corresponding two straight line of four straight flanges adjacent two-by-two is determined as
Four virtual vertexs.
8. display screen matrix data acquisition facility according to claim 6, which is characterized in that the apex angle determines minor structure
In, the origin of coordinate system where the coordinate of each pixel is the arbitrary virtual vertex.
9. a kind of pixel compensation method, which is characterized in that obtained including claim 1-4 any one of them display screen matrix data
Take method.
10. a kind of pixel compensation system, which is characterized in that including claim 5-8 any one of them display screen matrix data
Acquisition device.
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