CN104931005B - More BIN LED lamp panel uniformity detection method and device - Google Patents

More BIN LED lamp panel uniformity detection method and device Download PDF

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Publication number
CN104931005B
CN104931005B CN201510389317.3A CN201510389317A CN104931005B CN 104931005 B CN104931005 B CN 104931005B CN 201510389317 A CN201510389317 A CN 201510389317A CN 104931005 B CN104931005 B CN 104931005B
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distance
bin
lamp bead
led lamp
adjoint point
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CN104931005A (en
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黄早珊
胡军模
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Vtron Group Co Ltd
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Vtron Technologies Ltd
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    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract

The embodiment of the invention discloses the LED lamp panel uniformity detection method and device of more BIN a kind of,Exclusive shape corresponding with detection lamp bead is determined according to preset determination pattern by the way that lamp bead and discrete point set will be detected,And calculate the area value of exclusive shape,The area value for repeating to monopolize shape corresponding to current BIN each LED lamp bead to belonging to obtains,The current BIN uniformitys are calculated according to the formula BIN uniformitys=(sum of the area value of the exclusive shape of 4 × current BIN all LED lamp beads)/(area value of π × LED lamp panel),Until the acquisition of all BIN of the completion BIN uniformitys,And the uniformity of all BIN uniformitys progress mean value calculation acquisition LED lamp panel to acquisition,Allow to be to evaluate the uniformity of acquisition,And chosen according to evaluation result and best load in mixture scheme,After solving and being loaded in mixture due to different BIN LED lamp bead,The technical problem of caused display consistency difference.

Description

More BIN LED lamp panel uniformity detection method and device
Technical field
The present invention relates to technical field of LED display, more particularly to the LED lamp panel uniformity detection method of more BIN a kind of and Device.
Background technology
LED display, it is made up of LED module panel small one by one, red, green and the LED wafer or lamp of blueness The display screen that pipe is put together as a pixel making.There is discreteness in LED, work as die package in raw material such as selection wafers Under certain current condition all there is certain area coverage in luminosity and wavelength after into LED lamp bead, therefore LED lamp bead is sealed Device carries out stepping screening, i.e., multiple BIN scope in the brightness of lamp bead and wavelength after dress.
LED display lamp plate is divided into single BIN LED compositions at present and a variety of BIN LED loads in mixture composition.Due to LED There is otherness caused by the selection of the materials such as wafer, colloid and encapsulation in pearl, LED lamp bead is divided screening under equal electric current to be in Existing normal distribution characteristic.In order to consume same batch production lamp bead as much as possible, LED display manufacturer can use a variety of BIN LED Hybrid assemblings production.If multiple BIN LED lamp bead is arranged uneven when loading in mixture into lamp plate, occur same BIN's Lamp bead is gathered in a region, while because the parameters such as the different BIN brightness of LED lamp bead, wavelength have differences, after lamp plate is lighted Obvious " compartmentalization " color lump, aberration are can be appreciated that, so as to cause display consistency to become very poor.
In order to solve it is above-mentioned refer to loaded in mixture due to different BIN LED lamp bead after, caused display consistency difference skill Art problem, have become those skilled in the art's technical problem urgently to be resolved hurrily.
The content of the invention
The embodiments of the invention provide the LED lamp panel uniformity detection method and device of more BIN a kind of, solve due to not With BIN LED lamp bead load in mixture after, caused display consistency difference technical problem.
A kind of more BIN provided in an embodiment of the present invention LED lamp panel uniformity detection method, including：
S1：Extract the discrete point set corresponding to the LED lamp panel being spliced to form as a plurality of LED lamp beads, the discrete point set It is corresponding with position of the LED lamp bead in the LED lamp panel；
S2：It is detection lamp bead to specify an one of BIN LED lamp bead according to the LED lamp panel；
S3：The detection lamp bead and the discrete point set is corresponding with the detection lamp bead according to the determination of preset determination pattern Exclusive shape, and calculate the area value of the exclusive shape；
S4：Step S2 and step S3 are repeated to belonging to the exclusive shape corresponding to current BIN each LED lamp bead Area value obtained；
S5：According to the formula BIN uniformitys=(the exclusive shape of 4 × presently described BIN all LED lamp beads The sum of area value)/the current BIN uniformitys are calculated in (area value of π × LED lamp panel)；
S6：Step S2 to step S5 is repeated, the acquisition of the BIN uniformitys until completing all BIN, and The uniformity of the mean value calculation acquisition LED lamp panel is carried out to all BIN uniformitys of acquisition.
Preferably, the step S3 is specifically included：
S31：Determined according to position relationship of the detection lamp bead in the discrete point set according to apart from preset determination pattern First distance and second distance；
S32：Described first distance, the second distance are compared with the vertical range of the detection lamp bead, if institute The half that vertical range is more than the second distance is stated, then step S33 is performed, if the vertical range is in first distance Half and the second distance half between, then perform step S34, if the vertical range is not at first distance Half and the second distance half between, then perform step S35；
S33：Semicircle of the exclusive shape by radius for the half of first distance is determined, and major axis is described second Half, the short axle of distance form for the semiellipse of the half of first distance, and calculate the area value of the exclusive shape；
S34：Semicircle of the exclusive shape by radius for the half of first distance is determined, and major axis is described vertical Distance, short axle form for the semiellipse of the half of first distance, and calculate the area value of the exclusive shape；
S35：The exclusive shape is determined by the semicircle that radius is the vertical range, and major axis is first distance Half, short axle form for the semiellipse of the vertical range, and calculate the area value of the exclusive shape；
Wherein, the vertical range is the detection lamp bead and the distance on its nearest LED lamp panel border.
Preferably, the step S31 is specifically included：
Determined according to the detection lamp bead in the position of the discrete point set and what the detection lamp bead was nearest treats that first is adjacent Point, determine that the detection lamp bead and the distance for treating the first adjoint point are first distance, and the first adjoint point is treated described in judgement Quantity whether be more than 1；
If the quantity for treating the first adjoint point is more than 1, judge all described to treat whether the first adjoint point is in 90 ° of regions In；
It is in 90 ° of regions that if the first adjoint point is treated described in all, it is determined that meets two of the first preset adjoint point condition It is described to treat that the first adjoint point is first adjoint point, while carry out preset second adjoint point and determine pattern, if being treated described in all, first is adjacent Point is not in 90 ° of regions, then described to treat that the first adjoint point is first adjoint point, and determines first distance and described second Apart from equal；
Preset second adjoint point determines that pattern includes：
It is made whether to there are the judgement for second adjoint point for meeting second the first prerequisite of adjoint point, if in the presence of, Determine that the detection lamp bead and the distance of second adjoint point are the second distance, and perform step S32, if being not present, The second distance is set as infinity, and is set using the detection lamp bead as second distance described in summit and the vertical range The angle of place vector is 0 °, and performs step S32；
Wherein, the described first preset adjoint point condition is using the detection lamp bead to be treated described in two of the angle maximum on summit First adjoint point is first adjoint point；
The prerequisite of second adjoint point first is using the detection lamp bead as the second adjoint point and two described in the angle on summit The angle of individual first adjoint point is not less than 90 °.
Preferably, if the quantity for treating the first adjoint point is 1, it is determined whether there are and meet that the second adjoint point second is preset Second adjoint point of condition, if in the presence of, it is determined that the distance of detection lamp bead and second adjoint point for described second away from From, and step S32 is performed, if being not present, the second distance is set as infinity, and set using the detection lamp bead as top The angle of vector is 0 ° where the point second distance and the vertical range, and performs step S32；
Wherein, the prerequisite of the second adjoint point second is using the detection lamp bead as the second adjoint point described in the angle on summit It is not less than 90 ° with the angle of first adjoint point.
Preferably, step S32 is specifically included：
Described first distance, the second distance are compared with the vertical range of the detection lamp bead；
If the vertical range is more than the half of the second distance, step S33 is performed, if the vertical range is little In the half of the second distance, then carry out the vertical range whether half in first distance and described second away from From half between judgement；
If the vertical range is between the half of first distance and the half of the second distance, judge with The detection lamp bead is whether the angle of vector where second distance described in summit and the vertical range is not less than 90 °, if it is not, Step S34 is then performed, if so, then perform step S33, if the vertical range is not at the half of first distance and described Between the half of second distance, then step S35 is performed.
A kind of more BIN provided in an embodiment of the present invention LED lamp panel uniformity detection means, including：
Extraction unit, it is configured as extracting the discrete point corresponding to the LED lamp panel being spliced to form as a plurality of LED lamp beads Collection, position of the discrete point set with the LED lamp bead in the LED lamp panel are corresponding；
Designating unit, it is detection that it, which is configured as specifying an one of BIN LED lamp bead according to the LED lamp panel, Lamp bead；
Exclusive shape unit, it is configured as determining the detection lamp bead and the discrete point set according to preset determination pattern Exclusive shape corresponding with the detection lamp bead, and calculate the area value of the exclusive shape；
After the area value of the exclusive shape of a detection lamp bead, which calculates, to be completed, specified described in repeated trigger single First and described exclusive shape unit, until completing to belonging to the exclusive shape corresponding to current BIN each described LED lamp bead The acquisition of area value, and trigger BIN uniformity computing units；
The BIN uniformitys computing unit, it is configured as according to the formula BIN uniformitys=(4 × presently described BIN's The sum of the area value of the exclusive shape of all LED lamp beads)/(area value of π × LED lamp panel) be calculated currently The BIN uniformitys；
After the BIN uniformity, which calculates, to be completed, designating unit, the exclusive shape unit described in repeated trigger The uniformity that next BIN is carried out with the BIN uniformitys computing unit calculates, the institute until completing all BIN The acquisition of the BIN uniformitys is stated, and triggers total uniformity unit；
Total uniformity unit, it is configured as obtaining all BIN uniformitys progress mean value calculations of acquisition Take the uniformity of the LED lamp panel.
Preferably, shape unit is monopolized to specifically include：
Determination subelement, it is configured as according to the position relationship for detecting lamp bead in the discrete point set according to distance Preset determination pattern determines the first distance and second distance；
First comparison subunit, it is configured as the described first distance, the second distance and the detection lamp bead Vertical range is compared, if the vertical range is more than the half of the second distance, triggering first performs subelement, if The vertical range is between the half of first distance and the half of the second distance, then triggers second and perform son list Member, if the vertical range is not between the half of first distance and the half of the second distance, triggering the 3rd Perform subelement；
Described first performs subelement, and it is configured to determine that half of the exclusive shape by radius for first distance Semicircle, and the semiellipse composition for the half that major axis is the half of the second distance, short axle is first distance and counts The area value of the exclusive shape is calculated, and triggers the BIN uniformitys computing unit；
Described second performs subelement, and it is configured to determine that half of the exclusive shape by radius for first distance Semicircle, and the half that major axis is the vertical range, short axle is first distance semiellipse composition, and calculate described in The area value of exclusive shape, and trigger the BIN uniformitys computing unit；
Described 3rd performs subelement, and it is configured to determine that half of the exclusive shape by radius for the vertical range Circle, and the semiellipse composition that half, the short axle that major axis is first distance are the vertical range, and calculate described exclusive The area value of shape, and trigger the BIN uniformitys computing unit；
Wherein, the vertical range is the detection lamp bead and the distance on its nearest LED lamp panel border.
Preferably, determination subelement specifically includes：
Determining module, it is configured as being determined and the detection in the position of the discrete point set according to the detection lamp bead Lamp bead it is nearest treat the first adjoint point, determine that the detection lamp bead and the distance for treating the first adjoint point are first distance, and Trigger judge module；
The judge module, it is configured as treating whether the quantity of the first adjoint point is more than 1 described in judgement, if described treat first The quantity of adjoint point be more than 1, then judge it is all it is described treat the first adjoint point whether in 90 ° of regions, described treat first if all Adjoint point is in 90 ° of regions, it is determined that it is described first that the first adjoint point is treated described in meet the first preset adjoint point condition two Adjoint point, while carry out preset second adjoint point and determine pattern, it is described if treating that the first adjoint point is not in 90 ° of regions described in all It is first adjoint point to treat the first adjoint point, and determines that first distance is equal with the second distance；
Preset second adjoint point determines that pattern includes：
It is made whether to there are the judgement for second adjoint point for meeting second the first prerequisite of adjoint point, if in the presence of, Determine that the detection lamp bead and the distance of second adjoint point are the second distance, and trigger first comparison subunit, If being not present, set the second distance as infinity, and set using it is described detection lamp bead as second distance described in summit with The angle of vector is 0 ° where the vertical range, and triggers first comparison subunit；
Wherein, the described first preset adjoint point condition is using the detection lamp bead to be treated described in two of the angle maximum on summit First adjoint point is first adjoint point；
The prerequisite of second adjoint point first is using the detection lamp bead as the second adjoint point and two described in the angle on summit The angle of individual first adjoint point is not less than 90 °.
Preferably, the judge module, if it is additionally configured to the quantity for treating the first adjoint point as 1, it is determined whether There are meet second the second prerequisite of adjoint point second adjoint point, if in the presence of, it is determined that it is described detection lamp bead with it is described The distance of second adjoint point is the second distance, and triggers first comparison subunit, if being not present, sets described second Distance is infinity, and sets the folder using the detection lamp bead as vector where second distance described in summit and the vertical range Angle is 0 °, and triggers first comparison subunit；
Wherein, the prerequisite of the second adjoint point second is using the detection lamp bead as the second adjoint point described in the angle on summit It is not less than 90 ° with the angle of first adjoint point.
Preferably, first comparison subunit specifically includes：
First comparing module, it is configured as the described first distance, the second distance and the institute of the detection lamp bead Vertical range is stated to be compared；
If the vertical range is more than the half of the second distance, triggers described first and perform subelement, if described Vertical range is not more than the half of the second distance, then carries out the half whether vertical range is in first distance Judgement between the half of the second distance；
If the vertical range is between the half of first distance and the half of the second distance, judge with The detection lamp bead is whether the angle of vector where second distance described in summit and the vertical range is not less than 90 °, if it is not, Then trigger described second and perform subelement, if so, then trigger first execution unit, if the vertical range be not at it is described Between the half of first distance and the half of the second distance, then trigger the described 3rd and perform subelement.
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below：
A kind of more BIN provided in an embodiment of the present invention LED lamp panel uniformity detection method and device, wherein, more BIN's LED lamp panel uniformity detection method includes：S1：Extract discrete corresponding to the LED lamp panel being spliced to form as a plurality of LED lamp beads Point set, position of the discrete point set with LED lamp bead in LED lamp panel are corresponding；S2：Specify one of BIN's according to LED lamp panel One LED lamp bead is detection lamp bead；S3：Lamp bead and discrete point set will be detected to be determined with detecting lamp bead pair according to preset determination pattern The exclusive shape answered, and calculate the area value of exclusive shape；S4：Step S2 and step S3 are repeated to belonging to each of current BIN The area value that shape is monopolized corresponding to individual LED lamp bead is obtained；S5：According to the formula BIN uniformitys=(4 × current BIN's is all The sum of the area value of the exclusive shape of LED lamp bead)/the current BIN uniformitys are calculated in (area value of π × LED lamp panel)；S6： Step S2 to step S5 is repeated, the acquisition of the BIN uniformitys until completing all BIN, and it is uniform to all BIN of acquisition Degree carries out the uniformity that mean value calculation obtains LED lamp panel.In the present embodiment, by the way that lamp bead and discrete point set will be detected according to pre- Put determination pattern and determine exclusive shape corresponding with detection lamp bead, and calculate the area value of exclusive shape, repeat to belonging to current BIN's The area value that shape is monopolized corresponding to each LED lamp bead is obtained, according to the formula BIN uniformitys=(4 × current BIN institute Have the sum of the area value of the exclusive shape of LED lamp bead)/the current BIN uniformitys are calculated in (area value of π × LED lamp panel), directly Mean value calculation acquisition LED is carried out to the acquisition for the BIN uniformitys for completing all BIN, and to all BIN uniformitys of acquisition The uniformity of plate so that can be that the uniformity of acquisition is evaluated, and according to evaluation result choose it is best load in mixture scheme, After solving and being loaded in mixture due to different BIN LED lamp bead, the technical problem of caused display consistency difference.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is a kind of one embodiment of more BIN provided in an embodiment of the present invention LED lamp panel uniformity detection method Schematic flow sheet；
Fig. 2 is a kind of another embodiment of more BIN provided in an embodiment of the present invention LED lamp panel uniformity detection method Schematic flow sheet；
Fig. 3 is a kind of another embodiment of more BIN provided in an embodiment of the present invention LED lamp panel uniformity detection method Schematic flow sheet；
Fig. 4 is a kind of one embodiment of more BIN provided in an embodiment of the present invention LED lamp panel uniformity detection means Structural representation；
Fig. 5 is a kind of another embodiment of more BIN provided in an embodiment of the present invention LED lamp panel uniformity detection means Structural representation；
Fig. 6 is application examples LED lamp panel schematic diagram；
Fig. 7 is exclusive shape schematic diagram.
Embodiment
The embodiments of the invention provide the LED lamp panel uniformity detection method and device of more BIN a kind of, solve due to not With BIN LED lamp bead load in mixture after, caused display consistency difference technical problem.
To enable goal of the invention, feature, the advantage of the present invention more obvious and understandable, below in conjunction with the present invention Accompanying drawing in embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that disclosed below Embodiment be only part of the embodiment of the present invention, and not all embodiment.Based on the embodiment in the present invention, this area All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention Scope.
An a kind of referring to Fig. 1, reality of more BIN provided in an embodiment of the present invention LED lamp panel uniformity detection method Applying example includes：
S1：Extract the discrete point set corresponding to the LED lamp panel being spliced to form as a plurality of LED lamp beads；
When the carry out uniformity detection of one LED lamp panel being spliced to form by a plurality of LED lamp beads of detection is needed, And in the case that a plurality of LED lamp beads belong to multiple BIN, it is necessary first to the LED that extraction is spliced to form by a plurality of LED lamp beads Discrete point set corresponding to plate, position of the discrete point set with LED lamp bead in LED lamp panel are corresponding.
Such as shown in Fig. 6, one piece of LED lamp panel is made up of M × N number of LED lamp bead, it is assumed that each LED is regarded as one Point, point is positioned at each LED center, then one piece of LED lamp panel can be regarded as is made up of M × N number of point, and foregoing discrete point set can be The discrete point being randomly distributed in Fig. 6.
S2：It is detection lamp bead to specify an one of BIN LED lamp bead according to LED lamp panel；
After discrete point set corresponding to the LED lamp panel that extraction is spliced to form as a plurality of LED lamp beads, it is necessary to according to It is detection lamp bead that LED lamp panel, which specifies an one of BIN LED lamp bead,.
Can be that the detection lamp bead can be not detected as in Fig. 6, chosen one of arbitrfary point as detection lamp bead Cross.
S3：Lamp bead and discrete point set will be detected exclusive shape corresponding with detection lamp bead is determined according to preset determination pattern, and Calculate the area value of exclusive shape；
, it is necessary to which lamp will be detected after being specified an one of BIN LED lamp bead to detect lamp bead according to LED lamp panel Pearl and discrete point set determine exclusive shape corresponding with detection lamp bead according to preset determination pattern, and calculate the area value of exclusive shape.
It should be noted that calculating the mode of exclusive shape will be described in detail in subsequent embodiment, herein just not Repeat again.
S4：Repeat step S2 and step S3 monopolize shape to belonging to face corresponding to current BIN each LED lamp bead Product value is obtained；
Exclusive shape corresponding with detection lamp bead is determined according to preset determination pattern when lamp bead and discrete point set will be detected, and counted Calculate after the area value of exclusive shape, it is necessary to repeat step S2 and step S3 to belonging to current BIN each LED lamp bead pair The area value for the exclusive shape answered is obtained.
S5：According to the formula BIN uniformitys=(sum of the area value of the exclusive shape of 4 × current BIN all LED lamp beads)/ The current BIN uniformitys are calculated in (area value of π × LED lamp panel)；
When repeat step S2 and step S3 to belong to corresponding to current BIN each LED lamp bead monopolize shape face After product value is obtained, it is necessary to according to the formula BIN uniformitys=(face of the exclusive shape of 4 × current BIN all LED lamp beads The sum of product value)/the current BIN uniformitys are calculated in (area value of π × LED lamp panel).
Due to opening discussion LED points of same BIN in lamp plate, it is assumed that the LED lamp bead that the BINCODE in lamp plate is m Number is Pm, each point is made an exclusive shape, then the BIN uniformitys are expressed as：In formula：SmiFor BINCODE M i-th of LED exclusive shape area, A are the lamp plate gross area.
S6：Step S2 to step S5 is repeated, the acquisition of the BIN uniformitys until completing all BIN, and to acquisition All BIN uniformitys carry out the uniformity that mean value calculation obtains LED lamp panel.
When according to the formula BIN uniformitys=(sum of the area value of the exclusive shape of 4 × current BIN all LED lamp beads)/(π The area value of × LED lamp panel) the current BIN uniformitys are calculated afterwards, it is necessary to repeat step S2 to step S5, until The acquisition of all BIN BIN uniformitys is completed, and mean value calculation acquisition LED lamp panel is carried out to all BIN uniformitys of acquisition The uniformity.
Such as total uniformity is：N in formula0For LED lamp bead BINCODE quantity.
Total uniformity 0<U≤1, when the species as BIN, the ratio between every kind of BIN lamp bead are all known, total uniformity U Bigger, arrangement evaluation is better, shows that lamp plate LED breaks up more uniform.So as to choose arrangement evaluation most in various LED random arrangements Good scheme is re-packed.
It is corresponding with detection lamp bead according to the determination of preset determination pattern by the way that lamp bead and discrete point set will be detected in the present embodiment Exclusive shape, and calculate the area value of exclusive shape, repeat to monopolize shape corresponding to current BIN each LED lamp bead to belonging to Area value is obtained, according to the formula BIN uniformitys=(area value of the exclusive shape of 4 × current BIN all LED lamp beads With)/the current BIN uniformitys are calculated in (area value of π × LED lamp panel), the BIN uniformitys until completing all BIN Obtain, and the uniformity of all BIN uniformitys progress mean value calculation acquisition LED lamp panel to acquisition so that can be to obtaining The uniformity taken is evaluated, and according to evaluation result choose it is best load in mixture scheme, so as to solve due to different BIN's After LED lamp bead loads in mixture, the technical problem of caused display consistency difference.
The above is that the process of more BIN LED lamp panel uniformity detection method is described in detail, below will be to area The acquisition detailed process of value is described in detail, referring to Fig. 2, a kind of more BIN provided in an embodiment of the present invention LED lamp panel Another embodiment of uniformity detection method includes：
201st, the discrete point set corresponding to the LED lamp panel being spliced to form as a plurality of LED lamp beads is extracted；
When the carry out uniformity detection of one LED lamp panel being spliced to form by a plurality of LED lamp beads of detection is needed, And in the case that a plurality of LED lamp beads belong to multiple BIN, it is necessary first to the LED that extraction is spliced to form by a plurality of LED lamp beads Discrete point set corresponding to plate, position of the discrete point set with LED lamp bead in LED lamp panel are corresponding.
Such as shown in Fig. 6, one piece of LED lamp panel is made up of M × N number of LED, it is assumed that each LED is regarded as a point, point Positioned at each LED center, then one piece of LED lamp panel can be regarded as is made up of M × N number of point, and foregoing discrete point set can be in Fig. 6 The discrete point being randomly distributed.
202nd, the LED lamp bead that one of BIN is specified according to LED lamp panel is detection lamp bead；
After discrete point set corresponding to the LED lamp panel that extraction is spliced to form as a plurality of LED lamp beads, it is necessary to according to It is detection lamp bead that LED lamp panel, which specifies an one of BIN LED lamp bead,.
Can be that the detection lamp bead can be not detected as in Fig. 6, chosen one of arbitrfary point as detection lamp bead Cross.
203rd, the first distance is determined according to apart from preset determination pattern in the position relationship of discrete point set according to detection lamp bead And second distance；
, it is necessary to according to detection after being specified an one of BIN LED lamp bead to detect lamp bead according to LED lamp panel Lamp bead determines the first distance and second distance in the position relationship of discrete point set according to apart from preset determination pattern.
It should be noted that the first distance and the acquisition modes of second distance will carry out detailed retouch in subsequent embodiment State, just repeat no more herein.
204th, the first distance, second distance are compared with the vertical range of detection lamp bead, if vertical range is more than the The half of two distances, then step 205 is performed, if vertical range is between the half of the first distance and the half of second distance, Step 206 is then performed, if vertical range is not between the half of the first distance and the half of second distance, performs step 207；
When according to detection lamp bead discrete point set position relationship according to apart from preset determination pattern determine the first distance and , it is necessary to the first distance, second distance are compared with detecting the vertical range of lamp bead, if vertical range is big after second distance In the half of second distance, then perform step 205, if vertical range be in the first distance half and second distance half it Between, then step 206 is performed, if vertical range is not between the half of the first distance and the half of second distance, performs step Rapid 207.
Foregoing vertical range is the distance on the detection lamp bead LED lamp panel border nearest with it.
205th, determine semicircle of the exclusive shape by radius for the half of the first distance, and major axis for second distance half, Short axle forms for the semiellipse of the half of the first distance, and calculates the area value of exclusive shape；
When vertical range is more than the half of second distance, it is determined that monopolize half of shape by radius for the half of the first distance Circle, and the semiellipse composition for the half that major axis is the half of second distance, short axle is the first distance, and calculate the face of exclusive shape Product value.
206th, semicircle of the exclusive shape by radius for the half of the first distance is determined, and major axis is vertical range, short axle is The semiellipse composition of the half of first distance, and calculate the area value of exclusive shape；
When vertical range is between the half of the first distance and the half of second distance, it is determined that monopolize shape is by radius The semicircle of the half of first distance, and the semiellipse composition for the half that major axis is vertical range, short axle is the first distance, and count Calculate the area value of exclusive shape.
207th, exclusive shape is determined by the semicircle that radius is vertical range, and major axis is the half of the first distance, short axle is The semiellipse composition of vertical range, and calculate the area value of exclusive shape；
When vertical range is not more than the half of the first distance, it is determined that semicircle of the exclusive shape by radius for vertical range, with And the semiellipse composition that major axis is the half of the first distance, short axle is vertical range, and calculate the area value of exclusive shape.
208th, repeat step 202 and shape is monopolized corresponding to current BIN each LED lamp bead to belonging to step 207 Area value obtained；
Exclusive shape corresponding with detection lamp bead is determined according to preset determination pattern when lamp bead and discrete point set will be detected, and counted Calculate after the area value of exclusive shape, it is necessary to repeat step 202 to step 207 to belonging to current BIN each LED lamp bead The area value of corresponding exclusive shape is obtained.
209th, according to the formula BIN uniformitys=(sum of the area value of the exclusive shape of 4 × current BIN all LED lamp beads)/ The current BIN uniformitys are calculated in (area value of π × LED lamp panel)；
Shape is monopolized corresponding to current BIN each LED lamp bead to belonging to step 207 when repeating step 202 After area value is obtained, it is necessary to according to the formula BIN uniformitys=(the exclusive shape of 4 × current BIN all LED lamp beads The sum of area value)/the current BIN uniformitys are calculated in (area value of π × LED lamp panel).
Due to the LED lamp bead of same BIN in lamp plate is separately discussed, it is assumed that the LED that the BINCODE in lamp plate is m Pearl number is Pm, each point is made an exclusive shape, then the BIN uniformitys are expressed as：In formula：SmiFor BINCODE m i-th of LED exclusive shape area, A are the lamp plate gross area.
210th, step 202 is repeated to step 209, until the acquisition of all BIN of the completion BIN uniformitys, and to obtaining All BIN uniformitys taken carry out the uniformity that mean value calculation obtains LED lamp panel.
When according to the formula BIN uniformitys=(sum of the area value of the exclusive shape of 4 × current BIN all LED lamp beads)/(π The area value of × LED lamp panel) it is calculated after the current BIN uniformitys, it is necessary to repeat step 202 to step 209, directly Mean value calculation acquisition LED is carried out to the acquisition for the BIN uniformitys for completing all BIN, and to all BIN uniformitys of acquisition The uniformity of plate.
Such as total uniformity is：N in formula0For LED lamp bead BINCODE quantity.
Total uniformity 0<U≤1, when the species as BIN, the ratio between every kind of BIN lamp bead are all known, total uniformity U Bigger, arrangement evaluation is better, shows that lamp plate LED breaks up more uniform.So as to choose arrangement evaluation most in various LED random arrangements Good scheme is re-packed.
The area of exclusive shape in the present embodiment can be calculated by circular radius and oval radius, and be this Known in art personnel, just repeat no more herein.
It is corresponding with detection lamp bead according to the determination of preset determination pattern by the way that lamp bead and discrete point set will be detected in the present embodiment Exclusive shape, and calculate the area value of exclusive shape, repeat to monopolize shape corresponding to current BIN each LED lamp bead to belonging to Area value is obtained, according to the formula BIN uniformitys=(area value of the exclusive shape of 4 × current BIN all LED lamp beads With)/the current BIN uniformitys are calculated in (area value of π × LED lamp panel), the BIN uniformitys until completing all BIN Obtain, and the uniformity of all BIN uniformitys progress mean value calculation acquisition LED lamp panel to acquisition so that can be to obtaining The uniformity taken is evaluated, and according to evaluation result choose it is best load in mixture scheme, so as to solve due to different BIN's After LED lamp bead loads in mixture, the technical problem of caused display consistency difference.
The above is that the acquisition detailed process to area value is described in detail, below will be to the first distance and second distance Determination process be described in detail, referring to Fig. 3, a kind of more BIN provided in an embodiment of the present invention LED lamp panel uniformity Another embodiment of detection method includes：
301st, the discrete point set corresponding to the LED lamp panel being spliced to form as a plurality of LED lamp beads is extracted；
When the carry out uniformity detection of one LED lamp panel being spliced to form by a plurality of LED lamp beads of detection is needed, And in the case that a plurality of LED lamp beads belong to multiple BIN, it is necessary first to the LED that extraction is spliced to form by a plurality of LED lamp beads Discrete point set corresponding to plate, position of the discrete point set with LED lamp bead in LED lamp panel are corresponding.
Such as shown in Fig. 6, one piece of LED lamp panel is made up of M × N number of LED, it is assumed that each LED is regarded as a point, point Positioned at each LED center, then one piece of LED lamp panel can be regarded as is made up of M × N number of point, and foregoing discrete point set can be in Fig. 6 The discrete point being randomly distributed.
302nd, the LED lamp bead that one of BIN is specified according to LED lamp panel is detection lamp bead；
After discrete point set corresponding to the LED lamp panel that extraction is spliced to form as a plurality of LED lamp beads, it is necessary to according to It is detection lamp bead that LED lamp panel, which specifies an one of BIN LED lamp bead,.
Can be that the detection lamp bead can be not detected as in Fig. 6, chosen one of arbitrfary point as detection lamp bead Cross.
303rd, determined according to detection lamp bead in the position of discrete point set and what detection lamp bead was nearest treats the first adjoint point, it is determined that inspection It is the first distance that lamp bead, which is surveyed, with the distance for treating the first adjoint point, and judges to treat whether the quantity of the first adjoint point is more than 1, if treating, first is adjacent The quantity of point is more than 1, then performs step 304, if the quantity for treating the first adjoint point is 1, performs step 305；
, it is necessary to according to detection after being specified an one of BIN LED lamp bead to detect lamp bead according to LED lamp panel Lamp bead determines in the position of discrete point set and what detection lamp bead was nearest treats the first adjoint point, it is determined that detecting lamp bead and treating the first adjoint point Distance is the first distance, and judges to treat whether the quantity of the first adjoint point is more than 1, if the quantity for treating the first adjoint point is more than 1, is held Row step 304, if the quantity for treating the first adjoint point is 1, perform step 305.
304th, judge to need the first adjoint point whether in 90 ° of regions, if it is to be in 90 ° of regions to need the first adjoint point In, then step 306 is performed, is not at if needing the first adjoint point in 90 ° of regions, performs step 307；
When the quantity for treating the first adjoint point more than 1, then to judge to need whether the first adjoint point is in 90 ° of regions, if institute It is in 90 ° of regions to need the first adjoint point, then performs step 306, be not at if needing the first adjoint point in 90 ° of regions, Perform step 307.
305th, the second adjoint point for meeting second the second prerequisite of adjoint point is determined whether there is, if in the presence of, it is determined that inspection It is second distance to survey lamp bead and the distance of the second adjoint point, and performs step 308, if being not present, sets second distance to be infinite Greatly, and to set to detect lamp bead angle of vector where summit second distance and vertical range be 0, and performs step 308；
When the quantity for treating the first adjoint point is 1, it is determined whether there are and meet the second of second the second prerequisite of adjoint point Adjoint point, if in the presence of, it is determined that it is second distance to detect lamp bead and the distance of the second adjoint point, and performs step 308, if being not present, Second distance is then set as infinity, and is set to detect angle of the lamp bead as vector where summit second distance and vertical range For 0, and perform step 308.
Wherein, second the second prerequisite of adjoint point is to detect angle second adjoint point and first adjoint point of the lamp bead as summit Angle is not less than 90 °, and the distance for detecting lamp bead and the second adjoint point be using detect lamp bead as summit the adjoint point of angle second with The angle of first adjoint point is not less than the beeline in 90 ° of scopes.
306th, determine to meet that two of the first preset adjoint point condition are treated that the first adjoint point is the first adjoint point, while be made whether to deposit In the judgement for having the second adjoint point for meeting second the first prerequisite of adjoint point, if in the presence of, it is determined that detection lamp bead and the second adjoint point Distance be second distance, and perform step 308, if being not present, set second distance as infinity, and set to detect lamp Pearl is that the angle of vector where summit second distance and vertical range is 0 °, and performs step 308；
It is in 90 ° of regions when needing the first adjoint point, it is determined that meet that two of the first preset adjoint point condition treat the One adjoint point is the first adjoint point, while is made whether to there are the judgement for the second adjoint point for meeting second the first prerequisite of adjoint point, If in the presence of, it is determined that it is second distance to detect lamp bead and the distance of the second adjoint point, and performs step 308, if being not present, is set Second distance is infinity, and it is 0 ° to set to detect angle of the lamp bead as vector where summit second distance and vertical range, And perform step 308.
Wherein, the first preset adjoint point condition is to treat that the first adjoint point is the to detect two maximum as the angle on summit of lamp bead One adjoint point, second the first prerequisite of adjoint point are to detect lamp bead as the adjoint point of angle second on summit and the folder of two the first adjoint points Angle is not less than 90 °, and the distance for detecting lamp bead and the second adjoint point be using detect lamp bead as summit the adjoint point of angle second with The angle of two the first adjoint points is not less than the beeline in 90 ° of scopes.
307th, it is the first adjoint point to treat the first adjoint point, and determines that the first distance is equal with second distance；
It is not at when needing the first adjoint point in 90 ° of regions, then it is the first adjoint point to treat the first adjoint point, and determines the first distance It is equal with second distance, and perform step 308.
308th, the first distance, second distance are compared with the vertical range of detection lamp bead, if vertical range is more than the The half of two distances, then step 311 is performed, if vertical range is not more than the half of second distance, perform step 309；
, it is necessary to which the first distance, second distance are hung down with detection lamp bead after step 305 or step 306 or step 307 Straight distance is compared, if vertical range is more than the half of second distance, performs step 311, if vertical range is no more than the The half of two distances, then perform step 309.
309th, carry out vertical range whether in the first distance half and second distance half between judgement, if hang down Between the half of half and second distance of the straight distance in the first distance, then step 310 is performed, if vertical range is not at the Between the half of one distance and the half of second distance, then step 313 is performed；
When vertical range be not more than second distance half, then carry out vertical range whether in the first distance half and Judgement between the half of second distance, if vertical range is between the half of the first distance and the half of second distance, Step 310 is performed, if vertical range is not between the half of the first distance and the half of second distance, performs step 313.
310th, judge to detect whether angle of the lamp bead as vector where summit second distance and vertical range is not less than 90 °, if it is not, step 312 is then performed, if so, then performing step 311；
When vertical range is between the half of the first distance and the half of second distance, then judge to detect lamp bead as top Whether the angle of vector where point second distance and vertical range is not less than 90 °, if it is not, step 312 is then performed, if so, then holding Row step 311.
Foregoing vertical range is the distance on the detection lamp bead LED lamp panel border nearest with it.
311st, determine semicircle of the exclusive shape by radius for the half of the first distance, and major axis for second distance half, Short axle forms for the semiellipse of the half of the first distance, and calculates the area value of exclusive shape；
It is determined that semicircle of the exclusive shape by radius for the half of the first distance, and half, the short axle that major axis is second distance Semiellipse for the half of the first distance forms, and calculates the area value of exclusive shape.
312nd, semicircle of the exclusive shape by radius for the half of the first distance is determined, and major axis is vertical range, short axle is The semiellipse composition of the half of first distance, and calculate the area value of exclusive shape；
It is determined that semicircle of the exclusive shape by radius for the half of the first distance, and major axis is vertical range, short axle first The semiellipse composition of the half of distance, and calculate the area value of exclusive shape.
313rd, exclusive shape is determined by the semicircle that radius is vertical range, and major axis is the half of the first distance, short axle is The semiellipse composition of vertical range, and calculate the area value of exclusive shape；
It is determined that semicircle of the exclusive shape by radius for vertical range, and major axis is the half of the first distance, short axle is vertical The semiellipse composition of distance, and calculate the area value of exclusive shape.
314th, step 303 is repeated to enter the area value for belonging to exclusive shape corresponding to current BIN each LED lamp bead Row obtains；
Exclusive shape corresponding with detection lamp bead is determined according to preset determination pattern when lamp bead and discrete point set will be detected, and counted The area value of exclusive shape is calculated afterwards, it is necessary to repeat step 303 to belonging to corresponding to current BIN each LED lamp bead solely The area value for accounting for shape is obtained.
315th, according to the formula BIN uniformitys=(sum of the area value of the exclusive shape of 4 × current BIN all LED lamp beads)/ The current BIN uniformitys are calculated in (area value of π × LED lamp panel)；
The area value for belonging to exclusive shape corresponding to current BIN each LED lamp bead is carried out when repeating step 303 After acquisition, it is necessary to according to the formula BIN uniformitys=(area value of the exclusive shape of 4 × current BIN all LED lamp beads With)/the current BIN uniformitys are calculated in (area value of π × LED lamp panel).
Due to opening discussion LED points of same BIN in lamp plate, it is assumed that the LED lamp bead that the BINCODE in lamp plate is m Number is Pm, each point is made an exclusive shape, then the BIN uniformitys are expressed as：In formula：SmiFor BINCODE M i-th of LED exclusive shape area, A are the lamp plate gross area.
316th, step 303 is repeated, the acquisition of the BIN uniformitys until completing all BIN, and own to acquisition The BIN uniformitys carry out the uniformity that mean value calculation obtains LED lamp panel.
When according to the formula BIN uniformitys=(sum of the area value of the exclusive shape of 4 × current BIN all LED lamp beads)/(π The area value of × LED lamp panel) it is calculated after the current BIN uniformitys, it is necessary to step 303 be repeated, until completing institute There is the acquisition of the BIN BIN uniformitys, and the uniform of mean value calculation acquisition LED lamp panel is carried out to all BIN uniformitys of acquisition Degree.
Such as total uniformity is：N in formula0For LED lamp bead BINCODE quantity.
Total uniformity 0<U≤1, when the species as BIN, the ratio between every kind of BIN lamp bead are all known, total uniformity U Bigger, arrangement evaluation is better, shows that lamp plate LED breaks up more uniform.So as to choose arrangement evaluation most in various LED random arrangements Good scheme is re-packed.
The area of exclusive shape in the present embodiment can be calculated by circular radius and oval radius, and be this Known in art personnel, just repeat no more herein.
It is corresponding with detection lamp bead according to the determination of preset determination pattern by the way that lamp bead and discrete point set will be detected in the present embodiment Exclusive shape, and calculate the area value of exclusive shape, repeat to monopolize shape corresponding to current BIN each LED lamp bead to belonging to Area value is obtained, according to the formula BIN uniformitys=(area value of the exclusive shape of 4 × current BIN all LED lamp beads With)/the current BIN uniformitys are calculated in (area value of π × LED lamp panel), the BIN uniformitys until completing all BIN Obtain, and the uniformity of all BIN uniformitys progress mean value calculation acquisition LED lamp panel to acquisition so that can be to obtaining The uniformity taken is evaluated, and according to evaluation result choose it is best load in mixture scheme, so as to solve due to different BIN's After LED lamp bead loads in mixture, the technical problem of caused display consistency difference, and a variety of determinations of exclusive shape area value, enter one Step improves the evaluation of the uniformity.
The description of application examples is carried out to embodiment illustrated in fig. 3 with reference to Fig. 6：
Concentrate in the point of two-dimensional space, for any point O, find and nearest neighbor point P1, distance is l1, then find a bit P2, make P2In ∠ P1OP2Closest point in the range of >=90 °, distance is l2.Make one using radius as l1/ 2 semicircle and major axis For l2/ 2, short axle l1The figure that/2 semiellipse is formed, referred to as exclusive shape, area are designated as S.If nearest neighbor point P1In the presence of It is multiple, when arest neighbors point set all locals are in 90 ° of region, find and concentrate a two point P1'、P1" so that angle ∠ P1'OP1” Maximum, then P2Need to meet ∠ P simultaneously1'OP2>=90 ° and ∠ P1”OP2>=90 ° of condition.When the area of the local of arest neighbors point set Domain angle is more than 90 °, then it is that radius is l to monopolize shape1/ 2 circle.
One piece of LED lamp panel is made up of M × N number of LED lamp bead, it is assumed that each LED lamp bead is regarded as a point, point is located at Each LED center, then one piece of LED lamp panel can be regarded as is made up of M × N number of point.LED points of same BIN in lamp plate are opened and is begged for By, it is assumed that the LED lamp bead number that the BINCODE in lamp plate is m is Pm, each point is made an exclusive shape, then the BIN is uniform Degree is expressed as：In formula：SmiFor BINCODE m i-th of LED exclusive shape area, A is the lamp plate gross area.
If exclusive shape exceeds lamp plate border, need to make amendment.If LED to the intersection point on the nearest border of lamp plate be Q, Distance is x.Work as l1/2<x≤l2/ 2, if ∠ QOP2<90 °, it is then l by radius to monopolize shape1/ 2 semicircle is x, short axle with major axis For l1The figure of/2 semiellipse composition.If ∠ QOP2>=90 °, then it need not correct.As x≤l1When/2, shape is monopolized then by half The semicircle that footpath is x and major axis are l1/ 2, the figure that the semiellipse that short axle is x forms.
If there is no P2, as x≤l1/ 2, the semicircle and major axis that exclusive shape is then x by radius are l1/ 2, short axle is the half of x The figure of ellipse composition.Work as x>l1When/2, it by radius is l to monopolize shape to be then1/ 2 semicircle and major axis are x, short axle l1The half of/2 The figure of ellipse composition.
Always the uniformity is：N in formula0For LED lamp bead BINCODE quantity.
Total uniformity 0<U≤1, when the species as BIN, the ratio between every kind of BIN lamp bead are all known, total uniformity U Bigger, arrangement evaluation is better, shows that lamp plate LED breaks up more uniform.So as to choose arrangement evaluation most in various LED random arrangements Good scheme is re-packed.
Further, it is assumed that Fig. 6 is one piece of mixed BIN LED lamp panel, and each grid length of side is 1, red (diagram twill Grid) with blueness (illustrate without filling grid) be respectively two kinds of different BIN lamp bead.Now with red BIN lamp bead (diagram twill Grid) exemplified by explain.
For putting 7 (being designated as O7, below all), it is known that P1For O8, and ∠ P1O7P2>90 °, then P2For O6, l1=1,Center is x=13/2 to the nearest frontier distance of lamp plate, meets x>l2/ 2, monopolize shape be by radius be 1/2 semicircle with Major axis isShort axle is made up of 1/2 semiellipse.
For O12, P1For O9 and O10, it is known that P1' it is O9, P1" it is O10, ∠ P1'O12P1" maximum and in the range of 90 °, Then P2For O16, just meet ∠ P simultaneously1'O12P2>=90 ° and ∠ P1”O12P2>=90 °,l2=3, x=7/2, meet x> l2/ 2, exclusive shape is to be by radiusSemicircle and major axis be 3/2, short axle beSemiellipse formed.
For O6, P1For O5 and O7, it is known that P1' it is O5, P1" it is O7, ∠ P1'O6P1”>90 °, then P1For O5, P2For O7,X=11/2, meet x>l2/ 2, exclusive shape is that radius isCircle.
For O15, P1For O14, P2For O11, l1=1,X=3/2, meet l1/2<x≤l2/ 2, and ∠ QO15P2 >90 °, exclusive shape is to be by the semicircle that radius is 1/2 and major axisShort axle is made up of 1/2 semiellipse.
For O3, P1For O4, P2For O1, l1=1,X=3/2, meet l1/2<x≤l2/ 2, but ∠ QO3P2< 90 °, exclusive shape is is made up of radius 1/2 semicircle with major axis is 3/2, short axle is 1/2 semiellipse.
For O1, P1For O2, P2For O3,X=1/2, meet x<l1/ 2, exclusive shape is to be by radius 1/2 semicircle is with major axisShort axle is made up of 1/2 semiellipse.
For O14, P1For O15, but in ∠ P1O14P2P is can not find in the range of >=90 °2, l1=1, l2=∞, x=3/2 is full Sufficient l1/2<x≤l2/ 2, exclusive shape is is made up of radius 1/2 semicircle with major axis is 3/2, short axle is 1/2 semiellipse.
For O16, P1For O12, but in ∠ P1O16P2P is can not find in the range of >=90 °2, l1=3, l2=∞, x=1/2 is full Sufficient x<l1/ 2, exclusive shape is is made up of radius 1/2 semicircle with major axis is 3/2, short axle is 1/2 semiellipse.
Foregoing exclusive shape, and l1And l2, P1And P2Can be as shown in Figure 7.
An a kind of referring to Fig. 4, implementation of the LED lamp panel uniformity detection means of more BIN in the embodiment of the present invention Example includes：
Extraction unit 401, its be configured as corresponding to the LED lamp panel that extraction is spliced to form as a plurality of LED lamp beads from Scatterplot collection, position of the discrete point set with LED in LED lamp panel are corresponding；
Designating unit 402, it is detection lamp that it, which is configured as specifying an one of BIN LED lamp bead according to LED lamp panel, Pearl；
Exclusive shape unit 403, it is configured as that detection lamp bead and discrete point set are determined and examined according to preset determination pattern Survey and shape is monopolized corresponding to lamp bead, and calculate the area value of exclusive shape；
After the area value for the exclusive shape that one is detected lamp bead, which calculates, to be completed, repeated trigger designating unit and exclusive shape list Member, until completing the acquisition to belonging to the area value that shape is monopolized corresponding to current BIN each LED lamp bead, and it is equal to trigger BIN Evenness computing unit 404；
BIN uniformitys computing unit 404, it is configured as according to the formula BIN uniformitys=(4 × current BIN's is all The sum of the area value of the exclusive shape of LED lamp bead)/the current BIN uniformitys are calculated in (area value of π × LED lamp panel)；
After the BIN uniformity, which calculates, to be completed, repeated trigger designating unit 402, exclusive shape unit 403 and BIN The uniformity that uniformity computing unit 404 carries out next BIN calculates, the acquisition of the BIN uniformitys until completing all BIN, And trigger total uniformity unit 405；
Total uniformity unit 405, it is configured as carrying out all BIN uniformitys of acquisition mean value calculation acquisition LED The uniformity of lamp plate.
In the present embodiment, lamp bead will be detected by exclusive shape unit 403 and discrete point set determines according to preset determination pattern Exclusive shape corresponding with detection lamp bead, and the area value of exclusive shape is calculated, BIN uniformitys computing unit 404 repeats to work as to belonging to The area value that shape is monopolized corresponding to preceding BIN each LED lamp bead is obtained, according to the formula BIN uniformitys=(4 × it is current The sum of the area value of the exclusive shape of BIN all LED lamp beads)/that current BIN is calculated in (area value of π × LED lamp panel) is equal Evenness, the acquisition of the BIN uniformitys until completing all BIN, total uniformity unit 405 enter to all BIN uniformitys of acquisition Row mean value calculation obtains the uniformity of LED lamp panel so that can be that the uniformity of acquisition is evaluated, and be tied according to evaluation Fruit choose it is best load in mixture scheme, after solving and being loaded in mixture due to different BIN LED lamp bead, caused display consistency The technical problem of difference.
The above is that each unit of more BIN LED lamp panel uniformity detection means is described in detail, below will be to each Subelement is described in detail, referring to Fig. 5, the LED lamp panel uniformity detection dress of more BIN in the embodiment of the present invention a kind of Another embodiment put includes：
Extraction unit 501, its be configured as corresponding to the LED lamp panel that extraction is spliced to form as a plurality of LED lamp beads from Scatterplot collection, position of the discrete point set with LED in LED lamp panel are corresponding；
Designating unit 502, it is detection lamp that it, which is configured as specifying an one of BIN LED lamp bead according to LED lamp panel, Pearl；
Exclusive shape unit 503, it is configured as that detection lamp bead and discrete point set are determined and examined according to preset determination pattern Survey and shape is monopolized corresponding to lamp bead, and calculate the area value of exclusive shape；
Exclusive shape unit 503 specifically includes：
Determination subelement 5031, its be configured as according to detection lamp bead discrete point set position relationship according to apart from preset The pattern of determination determines the first distance and second distance；
Determination subelement 5031 specifically includes：
Determining module 5031a, it is configured as being determined with detection lamp bead most in the position of discrete point set according to detection lamp bead Near treats the first adjoint point, it is determined that detection lamp bead is the first distance with the distance for treating the first adjoint point, and triggers judge module 5031b；
Judge module 5031b, whether its quantity for being configured as judging to treat the first adjoint point is more than 1, if treating the first adjoint point Quantity is more than 1, then judges to need the first adjoint point whether in 90 ° of regions, if it is to be in 90 ° of areas to need the first adjoint point In domain, it is determined that meet that two of the first preset adjoint point condition are treated that the first adjoint point is the first adjoint point, while it is adjacent to carry out preset second Point determination pattern, is not in 90 ° of regions if needing the first adjoint point, treats that the first adjoint point is the first adjoint point, and determines first Distance is equal with second distance；
Judge module 5031b, if it is additionally configured to treat that the quantity of the first adjoint point is 1, it is determined whether there are satisfaction Second adjoint point of second the second prerequisite of adjoint point, if in the presence of, it is determined that the distance of detection lamp bead and the second adjoint point for second away from From, and the first comparison subunit 5032 is triggered, if being not present, second distance is set as infinity, and set to detect lamp bead Angle for vector where summit second distance and vertical range is 0 °, and triggers the first comparison subunit 5032, wherein, second The prerequisite of adjoint point second is to be not less than 90 ° as the adjoint point of angle second on summit and the angle of the first adjoint point to detect lamp bead.
Preset second adjoint point determines that pattern includes：
It is made whether to there are the judgement for the second adjoint point for meeting second the first prerequisite of adjoint point, if in the presence of, it is determined that The distance for detecting lamp bead and the second adjoint point be second distance, and the first comparison subunit 5032 of triggering, if being not present, sets the Two distances are infinity, and it is 0 ° to set to detect angle of the lamp bead as vector where summit second distance and vertical range, and Trigger the first comparison subunit 5032；
Wherein, the first preset adjoint point condition is to treat that the first adjoint point is the to detect two maximum as the angle on summit of lamp bead One adjoint point；
Second the first prerequisite of adjoint point is to detect lamp bead as the adjoint point of angle second on summit and two the first adjoint points Angle is not less than 90 °.
First comparison subunit 5032, it is configured as the first distance, second distance and the vertical range of detection lamp bead It is compared, if vertical range is more than the half of second distance, triggering first performs subelement 5033, if vertical range is in Between the half of first distance and the half of second distance, then trigger second and perform subelement 5034, if vertical range is not more than The half of first distance, then trigger the 3rd and perform subelement 5035；
First comparison subunit 5032 specifically includes：First comparing module 5032a, it is configured as the first distance, the Two distances are compared with detecting the vertical range of lamp bead；
If vertical range is more than the half of second distance, triggering first performs subelement 5033, if vertical range is little In the half of second distance, then carry out whether vertical range is in sentencing between the half of the first distance and the half of second distance It is disconnected；
If vertical range is between the half of the first distance and the half of second distance, judge to detect lamp bead as top The angle of vector is not less than 90 ° where point second distance and vertical range, if so, then triggering second performs subelement 5034, if It is no, then the first execution unit 5033 is triggered, if vertical range is not between the half of the first distance and the half of second distance, Then triggering the 3rd performs subelement 5035.
First performs subelement 5033, and it is configured to determine that semicircle of the exclusive shape by radius for the half of the first distance, And the semiellipse composition for the half that major axis is the half of second distance, short axle is the first distance, and calculate the area of exclusive shape Value, and trigger BIN uniformitys computing unit 504；
Second performs subelement 5034, and it is configured to determine that semicircle of the exclusive shape by radius for the half of the first distance, And the semiellipse composition for the half that major axis is vertical range, short axle is the first distance, and the area value of exclusive shape is calculated, and touch Send out BIN uniformitys computing unit 504；
3rd performs subelement 5035, and it is configured to determine that exclusive shape by the semicircle that radius is vertical range, Yi Jichang The semiellipse composition that axle is the half of the first distance, short axle is vertical range, and the area value of exclusive shape is calculated, and trigger BIN Uniformity computing unit 504, wherein, vertical range is the distance on the detection lamp bead LED lamp panel border nearest with it.
After the area value for the exclusive shape that one is detected lamp bead, which calculates, to be completed, repeated trigger designating unit and exclusive shape list Member, until completing the acquisition to belonging to the area value that shape is monopolized corresponding to current BIN each LED lamp bead, and it is equal to trigger BIN Evenness computing unit 504；
BIN uniformitys computing unit 504, it is configured as according to the formula BIN uniformitys=(4 × current BIN's is all The sum of the area value of the exclusive shape of LED lamp bead)/the current BIN uniformitys are calculated in (area value of π × LED lamp panel)；
After the BIN uniformity, which calculates, to be completed, repeated trigger designating unit 502, exclusive shape unit 503 and BIN The uniformity that uniformity computing unit 504 carries out next BIN calculates, the acquisition of the BIN uniformitys until completing all BIN, And trigger total uniformity unit 505；
Total uniformity unit 505, it is configured as carrying out all BIN uniformitys of acquisition mean value calculation acquisition LED The uniformity of lamp plate.
In the present embodiment, lamp bead will be detected by exclusive shape unit 503 and discrete point set determines according to preset determination pattern Exclusive shape corresponding with detection lamp bead, and the area value of exclusive shape is calculated, BIN uniformitys computing unit 504 repeats to work as to belonging to The area value that shape is monopolized corresponding to preceding BIN each LED lamp bead is obtained, according to the formula BIN uniformitys=(4 × it is current The sum of the area value of the exclusive shape of BIN all LED lamp beads)/that current BIN is calculated in (area value of π × LED lamp panel) is equal Evenness, the acquisition of the BIN uniformitys until completing all BIN, total uniformity unit 505 enter to all BIN uniformitys of acquisition Row mean value calculation obtains the uniformity of LED lamp panel so that can be that the uniformity of acquisition is evaluated, and be tied according to evaluation Fruit choose it is best load in mixture scheme, after solving and being loaded in mixture due to different BIN LED lamp bead, caused display consistency The technical problem of difference, and a variety of determinations of exclusive shape area value, further increase the evaluation of the uniformity.
It should be noted that the LED and LED lamp bead in foregoing technical solution of the present invention are same feature, only it is merely The difference of the mode of expression, and well known to a person skilled in the art technology.
Described above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to before Embodiment is stated the present invention is described in detail, it will be understood by those within the art that：It still can be to preceding State the technical scheme described in each embodiment to modify, or equivalent substitution is carried out to which part technical characteristic；And these Modification is replaced, and the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (8)

  1. A kind of 1. LED lamp panel uniformity detection method of more BIN, it is characterised in that including：
    S1：The discrete point set corresponding to a plurality of LED lamp beads in the LED lamp panel being spliced to form as a plurality of LED lamp beads is extracted, Position of the discrete point set with the LED lamp bead in the LED lamp panel is corresponding；
    S2：It is detection lamp bead to specify an one of BIN LED lamp bead according to the LED lamp panel；
    S3：The detection lamp bead and the discrete point set is corresponding solely according to the determination of preset determination pattern and the detection lamp bead Shape is accounted for, and calculates the area value of the exclusive shape；
    S4：Step S2 and step S3 are repeated to belonging to the face of the exclusive shape corresponding to current BIN each LED lamp bead Product value is obtained；
    S5：According to the formula BIN uniformitys=(area value of the exclusive shape of 4 × presently described BIN all LED lamp beads With)/the current BIN uniformitys are calculated in (area value of π × LED lamp panel)；
    S6：Step S2 to step S5 is repeated, the acquisition of each BIN uniformitys until completing all BIN, and to obtaining All BIN uniformitys taken carry out the uniformity that mean value calculation obtains the LED lamp panel；
    The step S3 is specifically included：
    S31：According to the detection lamp bead first is determined in the position relationship of the discrete point set according to apart from preset determination pattern Distance and second distance；
    S32：First distance and the second distance are compared with the vertical range of the detection lamp bead, if described hang down Straight distance is more than the half of the second distance, then step S33 is performed, if the vertical range is in the one of first distance Between half and the half of the second distance, then step S34 is performed, if the vertical range is not at the one of first distance Between half and the half of the second distance, then step S35 is performed；
    S33：Semicircle of the exclusive shape by radius for the half of first distance is determined, and major axis is the second distance Half, short axle be the semiellipse composition of the half of first distance, and calculate the area value of the exclusive shape；
    S34：Semicircle of the exclusive shape by radius for the half of first distance is determined, and short axle is first distance Half, major axis formed for the semiellipse of the vertical range, and calculate the area value of the exclusive shape；
    S35：The exclusive shape is determined by the semicircle that radius is the vertical range, and one that major axis is first distance Halfth, short axle forms for the semiellipse of the vertical range, and calculates the area value of the exclusive shape；
    Wherein, the vertical range is the detection lamp bead and the distance on its nearest LED lamp panel border.
  2. 2. more BIN according to claim 1 LED lamp panel uniformity detection method, it is characterised in that the step S31 Specifically include：
    Will be nearest from the detection lamp bead in the discrete point set in the position of the discrete point set according to the detection lamp bead Discrete point as treating the first adjoint point, determine that the detection lamp bead and the distance for treating the first adjoint point are first distance, And treat whether the quantity of the first adjoint point is more than 1 described in judging；
    If the quantity for treating the first adjoint point is more than 1, judge all described to treat the first adjoint point whether in 90 ° of regions；
    It is in 90 ° of regions that if the first adjoint point is treated described in all, it is determined that described in meet the first preset adjoint point condition two It is first adjoint point to treat the first adjoint point, while carries out preset second adjoint point and determine pattern, if treating the first adjoint point not described in all It is in 90 ° of regions, then described to treat that the first adjoint point is first adjoint point, and determine first distance and the second distance It is equal；
    Preset second adjoint point determines that pattern includes：
    It is made whether to there are the judgement for second adjoint point for meeting second the first prerequisite of adjoint point, if in the presence of, it is determined that The detection lamp bead and the distance of second adjoint point are the second distance, and perform step S32, if being not present, are set The second distance is infinity, and is set using the detection lamp bead as where second distance described in summit and the vertical range The angle of vector is 0 °, and performs step S32；
    Wherein, the described first preset adjoint point condition is described in two that the angle that will be obtained using the detection lamp bead as summit is maximum Treat the first adjoint point as first adjoint point；
    The prerequisite of second adjoint point first be using it is described detection lamp bead as summit, second adjoint point respectively with described in two The angle that first adjoint point is formed is not less than 90 °.
  3. 3. more BIN according to claim 2 LED lamp panel uniformity detection method, it is characterised in that if described treat first The quantity of adjoint point is 1, it is determined whether second adjoint point for meeting second the second prerequisite of adjoint point is there are, if in the presence of, Then determine that the detection lamp bead and the distance of second adjoint point are the second distance, and perform step S32, if being not present, Then set the second distance as infinity, and set using it is described detect lamp bead as second distance described in summit and it is described vertically away from Angle from place vector is 0 °, and performs step S32；
    Wherein, the prerequisite of the second adjoint point second is second adjoint point and described the using the detection lamp bead as summit One adjoint point is connected the angle to be formed with the summit not less than 90 °.
  4. 4. more BIN according to claim 2 LED lamp panel uniformity detection method, it is characterised in that step S32 is specific Including：
    First distance and the second distance are compared with the vertical range of the detection lamp bead；
    If the vertical range is more than the half of the second distance, step S33 is performed, if the vertical range is not more than institute State the half of second distance, then carry out the vertical range whether half in first distance and the second distance Judgement between half；
    If the vertical range is between the half of first distance and the half of the second distance, judge with described Detect whether the angle that lamp bead is vector where second distance described in summit and the vertical range is not less than 90 °, if it is not, then holding Row step S34, if so, step S33 is then performed, if the vertical range is not at the half and described second of first distance Between the half of distance, then step S35 is performed.
  5. A kind of 5. LED lamp panel uniformity detection means of more BIN, it is characterised in that including：
    Extraction unit, it is configured as extracting a plurality of LED lamp beads in the LED lamp panel being spliced to form by a plurality of LED lamp beads Corresponding discrete point set, position of the discrete point set with the LED lamp bead in the LED lamp panel are corresponding；
    Designating unit, it is detection lamp bead that it, which is configured as specifying an one of BIN LED lamp bead according to the LED lamp panel,；
    Exclusive shape unit, it is configured as the detection lamp bead and the discrete point set is determined according to preset determination pattern and institute State and monopolize shape corresponding to detection lamp bead, and calculate the area value of the exclusive shape；
    When one it is described detection lamp bead the exclusive shape area value calculate complete after, designating unit described in repeated trigger and The exclusive shape unit, until completing the area to belonging to the exclusive shape corresponding to current BIN each described LED lamp bead The acquisition of value, and trigger BIN uniformity computing units；
    The BIN uniformitys computing unit, it is configured as according to the formula BIN uniformitys=(4 × presently described BIN's is all The sum of the area value of the exclusive shape of LED lamp bead)/(area value of π × LED lamp panel) be calculated it is current described The BIN uniformitys；
    After the BIN uniformity, which calculates, to be completed, designating unit, the exclusive shape unit and institute described in repeated trigger State the uniformity calculating that BIN uniformitys computing unit carries out next BIN, each BIN until completing all BIN The acquisition of the uniformity, and trigger total uniformity unit；
    Total uniformity unit, it is configured as carrying out all BIN uniformitys of acquisition mean value calculation acquisition institute State the uniformity of LED lamp panel；
    Exclusive shape unit specifically includes：
    Determination subelement, it is configured as according to the position relationship for detecting lamp bead in the discrete point set according to apart from preset The pattern of determination determines the first distance and second distance；
    First comparison subunit, it is configured as first distance and the second distance is vertical with the detection lamp bead Distance is compared, if the vertical range is more than the half of the second distance, triggering first performs subelement, if described Vertical range is between the half of first distance and the half of the second distance, then triggers second and perform subelement, If the vertical range is not between the half of first distance and the half of the second distance, triggering the 3rd performs Subelement；
    Described first performs subelement, and it is configured to determine that half of the exclusive shape by radius for the half of first distance Circle, and the semiellipse composition for the half that major axis is the half of the second distance, short axle is first distance, and calculate institute The area value of exclusive shape is stated, and triggers the BIN uniformitys computing unit；
    Described second performs subelement, and it is configured to determine that half of the exclusive shape by radius for the half of first distance Circle, and half that short axle is first distance, the semiellipse composition that major axis is the vertical range, and calculate described exclusive The area value of shape, and trigger the BIN uniformitys computing unit；
    Described 3rd performs subelement, and it is configured to determine that semicircle of the exclusive shape by radius for the vertical range, with And the semiellipse composition that half, the short axle that major axis is first distance are the vertical range, and calculate the exclusive shape Area value, and trigger the BIN uniformitys computing unit；
    Wherein, the vertical range is the detection lamp bead and the distance on its nearest LED lamp panel border.
  6. 6. more BIN according to claim 5 LED lamp panel uniformity detection means, it is characterised in that determination subelement has Body includes：
    Determining module, it is configured as being determined and the detection lamp bead in the position of the discrete point set according to the detection lamp bead Nearest treats the first adjoint point, determines that the detection lamp bead and the distance for treating the first adjoint point are first distance, and trigger Judge module；
    The judge module, it is configured as treating whether the quantity of the first adjoint point is more than 1 described in judgement, if described treat the first adjoint point Quantity be more than 1, then judge it is all it is described treat the first adjoint point whether in 90 ° of regions, described treat the first adjoint point if all It is in 90 ° of regions, it is determined that treat that the first adjoint point is first adjoint point described in meet the first preset adjoint point condition two, Carrying out preset second adjoint point determines pattern simultaneously, described to treat first if treating that the first adjoint point is not in 90 ° of regions described in all Adjoint point is first adjoint point, and determines that first distance is equal with the second distance；
    Preset second adjoint point determines that pattern includes：
    It is made whether to there are the judgement for second adjoint point for meeting second the first prerequisite of adjoint point, if in the presence of, it is determined that The detection lamp bead and the distance of second adjoint point are the second distance, and trigger first comparison subunit, if not In the presence of then setting the second distance as infinity, and set using the lamp bead that detects as summit, the second distance and described The angle of vector is 0 ° where vertical range, and triggers first comparison subunit；
    Wherein, the described first preset adjoint point condition is using the detection lamp bead to treat first described in two of the angle maximum on summit Adjoint point is first adjoint point；
    The prerequisite of second adjoint point first is second adjoint point and two described first using the detection lamp bead as summit The angle that adjoint point is formed is not less than 90 °.
  7. 7. more BIN according to claim 6 LED lamp panel uniformity detection means, it is characterised in that the judgement mould Block, if it is additionally configured to the quantity for treating the first adjoint point as 1, it is determined whether there are and meet that the second adjoint point second is preset Second adjoint point of condition, if in the presence of, it is determined that the distance of detection lamp bead and second adjoint point for described second away from From, and first comparison subunit is triggered, if being not present, the second distance is set as infinity, and set with described Detection lamp bead is that the angle of vector where second distance described in summit and the vertical range is 0 °, and triggers described first and compare Subelement；
    Wherein, the prerequisite of the second adjoint point second is using the detection lamp bead as the second adjoint point described in the angle on summit and institute The angle for stating the first adjoint point is not less than 90 °.
  8. 8. more BIN according to claim 6 LED lamp panel uniformity detection means, it is characterised in that described first compares Subelement specifically includes：
    First comparing module, it is configured as hanging down first distance and the second distance with the described of detection lamp bead Straight distance is compared；
    If the vertical range is more than the half of the second distance, triggers described first and perform subelement, if described vertical Distance is not more than the half of the second distance, then carries out half and institute that whether the vertical range is in first distance State the judgement between the half of second distance；
    If the vertical range is between the half of first distance and the half of the second distance, judge with described Detect whether the angle that lamp bead is vector where second distance described in summit and the vertical range is not less than 90 °, if it is not, then touching Send out described second perform subelement, if so, first execution unit is then triggered, if the vertical range is not at described first Between the half of distance and the half of the second distance, then trigger the described 3rd and perform subelement.
CN201510389317.3A 2015-07-02 2015-07-02 More BIN LED lamp panel uniformity detection method and device Expired - Fee Related CN104931005B (en)

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