CN104931005A

CN104931005A - A method and an apparatus for detecting uniformity of an LED lamp panel with a plurality of BINs

Info

Publication number: CN104931005A
Application number: CN201510389317.3A
Authority: CN
Inventors: 黄早珊; 胡军模
Original assignee: Vtron Technologies Ltd
Current assignee: Vtron Group Co Ltd
Priority date: 2015-07-02
Filing date: 2015-07-02
Publication date: 2015-09-23
Anticipated expiration: 2035-07-02
Also published as: CN104931005B

Abstract

The embodiment of the invention discloses a method and an apparatus for detecting uniformity of an LED lamp panel with a plurality of BINs. Exclusive forms corresponding to detection lamp beads are determined according to a preset determination mode with reference to detection lamp beads and discrete spot sets. Area values of the exclusive forms are calculated. Repeated obtaining of the area of the exclusive form corresponding to each LED lamp bead of a current BIN is carried out, and the uniformity of the obtained current BIN is calculated according to a formula that BIN uniformity=(4*the sum of the area values of the exclusive forms of all the LED lamp beads of the present BIN)/(Pi*the area value of the LED lamp panel) until the BIN uniformity of all BINs is obtained, and then mean value calculation if carried out on the uniformity of the uniformity of all the obtained BINs to obtain the uniformity of the LED lamp panel, so that evaluation of the obtained uniformity can be carried out. The best mixed installation scheme can be selected according to the evaluation result. Thus technical problems of poor display consistency due to mixed installation of LED lamp beads of different BINs are solved.

Description

The LED lamp panel uniformity coefficient detection method of many BIN and device

Technical field

The present invention relates to technical field of LED display, particularly relate to LED lamp panel uniformity coefficient detection method and the device of a kind of many BIN.

Background technology

LED display, is made up of LED module panel little one by one, and redness, green and blue LED wafer or fluorescent tube are put together as the display screen of a pixel making.Discreteness is there is in LED at starting material such as selection wafers, when after die package becomes LED lamp bead under certain current condition luminosity and wavelength all there is certain area coverage, therefore LED lamp bead encapsulated device carries out stepping screening, i.e. the scope of multiple BIN in the brightness of lamp pearl and wavelength.

Current LED display lamp plate is divided into the LED of single BIN to form and the LED of multiple BIN loads in mixture formation.Because LED lamp bead exists the otherness that the Material selec-tion such as wafer, colloid and encapsulation cause, LED lamp bead light splitting screening under equal electric current will present normal distribution characteristic.Produce lamp pearl to consume same batch as much as possible, LED display manufacturer can use the LED Hybrid assembling of multiple BIN to produce.If it is uneven to arrange when the LED lamp bead of multiple BIN loads in mixture into lamp plate, occur that the lamp pearl of same BIN is gathered in a region, simultaneously because the parameter such as brightness, wavelength of the LED lamp bead of different B IN there are differences, lamp plate can see significantly " compartmentalization " color lump, aberration after lighting, thus causes display consistency to become very poor.

In order to solve after the above-mentioned LED lamp bead due to different B IN mentioned loads in mixture, the technical matters of the display consistency difference caused, has become the technical matters that those skilled in the art are urgently to be resolved hurrily.

Summary of the invention

Embodiments provide LED lamp panel uniformity coefficient detection method and the device of a kind of many BIN, after the LED lamp bead solved due to different B IN loads in mixture, the technical matters of the display consistency difference caused.

The LED lamp panel uniformity coefficient detection method of a kind of many BIN that the embodiment of the present invention provides, comprising:

S1: extract the discrete point set corresponding to LED lamp panel be spliced to form by a plurality of LED lamp bead, described discrete point set is corresponding with the position of described LED lamp bead in described LED lamp panel;

S2: specify a LED lamp bead of one of them BIN for detecting lamp pearl according to described LED lamp panel;

S3: described detection lamp pearl and described discrete point set are determined the exclusive shape corresponding with described detection lamp pearl according to preset deterministic model, and calculates the area value of described exclusive shape;

S4: repeated execution of steps S2 and the area value of step S3 to described exclusive shape corresponding to each LED lamp bead belonging to current BIN obtain;

S5: calculate current described BIN uniformity coefficient according to the formula BIN uniformity coefficient=area value of the described exclusive shape of all described LED lamp bead of 4 × current described BIN (and)/(area value of π × described LED lamp panel);

S6: repeated execution of steps S2 to step S5, until complete the acquisition of the described BIN uniformity coefficient of all described BIN, and the uniformity coefficient of the described LED lamp panel of value calculating acquisition that all described BIN uniformity coefficient obtained is averaged.

Preferably, described step S3 specifically comprises:

S31: determine the first Distance geometry second distance at the position relationship of described discrete point set according to apart from preset deterministic model according to described detection lamp pearl;

S32: the vertical range of described first distance, described second distance and described detection lamp pearl is compared, if described vertical range is greater than the half of described second distance, then perform step S33, if between the half of second distance described in the half-sum that described vertical range is in described first distance, then perform step S34, if between the half of second distance described in the half-sum that described vertical range is not in described first distance, then perform step S35;

S33: determine that described exclusive shape is the semicircle of the half of described first distance by radius, and major axis be the half of described second distance, minor axis is the semiellipse composition of the half of described first distance, and calculates the area value of described exclusive shape;

S34: determine that described exclusive shape is the semicircle of the half of described first distance by radius, and major axis be described vertical range, minor axis is the semiellipse composition of the half of described first distance, and calculates the area value of described exclusive shape;

S35: determine that described exclusive shape is the semicircle of described vertical range by radius, and major axis be the half of described first distance, minor axis is the semiellipse composition of described vertical range, and calculates the area value of described exclusive shape;

Wherein, described vertical range is the distance on the described detection lamp pearl described LED lamp panel border nearest with it.

Preferably, described step S31 specifically comprises:

To determine in the position of described discrete point set to treat the first adjoint point recently with described detection lamp pearl according to described detection lamp pearl, determine described detection lamp pearl and describedly treat that the distance of the first adjoint point is described first distance, and treating whether the quantity of the first adjoint point is greater than 1 described in judging;

If described in treat that the quantity of the first adjoint point is for being greater than 1, then judge all described in treat whether the first adjoint point is in 90 ° of regions;

If treat described in all, the first adjoint point is in 90 ° of regions, treat that the first adjoint point is described first adjoint point described in two that then determine satisfied first preset adjoint point condition, carry out preset second adjoint point deterministic model simultaneously, if treat described in all, the first adjoint point is not in 90 ° of regions, treat then that the first adjoint point is described first adjoint point, and determine that described first distance is equal with described second distance;

Described preset second adjoint point deterministic model comprises:

Whether have the judgement of described second adjoint point of satisfied second adjoint point first prerequisite, if exist, then determine that the distance of described detection lamp pearl and described second adjoint point is described second distance, and perform step S32, if do not exist, then set described second distance as infinitely great, and set with described detection lamp pearl as the angle of second distance described in summit and described vertical range place vector is 0 °, and perform step S32;

Wherein, described first preset adjoint point condition treats that the first adjoint point is described first adjoint point described in maximum two of the angle that is summit with described detection lamp pearl;

Described second adjoint point first prerequisite for described detection lamp pearl for the angle of the second adjoint point described in the angle on summit and two described first adjoint points is all not less than 90 °.

Preferably, if described in treat that the quantity of the first adjoint point is 1, then determine whether there is described second adjoint point of satisfied second adjoint point second prerequisite, if exist, then determine that the distance of described detection lamp pearl and described second adjoint point is described second distance, and perform step S32, if do not exist, then set described second distance as infinitely great, and set with described detection lamp pearl as the angle of second distance described in summit and described vertical range place vector is 0 °, and perform step S32;

Wherein, described second adjoint point second prerequisite for described detection lamp pearl for the angle of the second adjoint point described in the angle on summit and described first adjoint point is not less than 90 °.

Preferably, step S32 specifically comprises:

The described vertical range of described first distance, described second distance and described detection lamp pearl is compared;

If described vertical range is greater than the half of described second distance, then perform step S33, if described vertical range is not more than the half of described second distance, then the judgement between the half of carrying out second distance described in a half-sum that whether described vertical range be in described first distance;

If between the half of second distance described in the half-sum that described vertical range is in described first distance, then judge with described detection lamp pearl as whether the angle of second distance described in summit and described vertical range place vector is not less than 90 °, if not, then perform step S34, if, then perform step S33, if described vertical range be not in described first distance a half-sum described in second distance half between, then perform step S35.

The LED lamp panel uniformity coefficient pick-up unit of a kind of many BIN that the embodiment of the present invention provides, comprising:

Extraction unit, it is configured to extract the discrete point set corresponding to LED lamp panel be spliced to form by a plurality of LED lamp bead, and described discrete point set is corresponding with the position of described LED lamp bead in described LED lamp panel;

Designating unit, it is configured to specify a LED lamp bead of one of them BIN for detecting lamp pearl according to described LED lamp panel;

Exclusive shape unit, it is configured to described detection lamp pearl and described discrete point set to determine the exclusive shape corresponding with described detection lamp pearl according to preset deterministic model, and calculates the area value of described exclusive shape;

After the area value of the described exclusive shape of a described detection lamp pearl has calculated, designating unit described in repeated trigger and described exclusive shape unit, until complete to belong to current BIN each described in the acquisition of area value of described exclusive shape corresponding to LED lamp bead, and trigger BIN uniformity coefficient computing unit;

Described BIN uniformity coefficient computing unit, it is configured to calculate current described BIN uniformity coefficient according to the formula BIN uniformity coefficient=area value of the described exclusive shape of all described LED lamp bead of 4 × current described BIN (and)/(area value of π × described LED lamp panel);

After the uniformity coefficient of a described BIN has calculated, the uniformity coefficient that designating unit, described exclusive shape unit and described BIN uniformity coefficient computing unit described in repeated trigger carry out next described BIN calculates, until complete the acquisition of the described BIN uniformity coefficient of all described BIN, and trigger total uniformity coefficient unit;

Described total uniformity coefficient unit, its be configured to obtain all described BIN uniformity coefficient be averaged value calculate acquisition described LED lamp panel uniformity coefficient.

Preferably, exclusive shape unit specifically comprises:

Determine subelement, it is configured to determine first Distance geometry second distance at the position relationship of described discrete point set according to apart from preset deterministic model according to described detection lamp pearl;

First comparer unit, it is configured to the vertical range of described first distance, described second distance and described detection lamp pearl to compare, if described vertical range is greater than the half of described second distance, then trigger first and perform subelement, if between the half of second distance described in the half-sum that described vertical range is in described first distance, then trigger second and perform subelement, if between the half of second distance described in the half-sum that described vertical range is not in described first distance, then trigger the 3rd and perform subelement;

Described first performs subelement, it is configured to determine that described exclusive shape is the semicircle of the half of described first distance by radius, and major axis be the half of described second distance, minor axis is the semiellipse composition of the half of described first distance, and calculate the area value of described exclusive shape, and trigger described BIN uniformity coefficient computing unit;

Described second performs subelement, it is configured to determine that described exclusive shape is the semicircle of the half of described first distance by radius, and major axis be described vertical range, minor axis be the half of described first distance semiellipse composition, and calculate the area value of described exclusive shape, and trigger described BIN uniformity coefficient computing unit;

Described 3rd performs subelement, it is configured to determine that described exclusive shape is the semicircle of described vertical range by radius, and major axis be the half of described first distance, minor axis is the semiellipse composition of described vertical range, and calculate the area value of described exclusive shape, and trigger described BIN uniformity coefficient computing unit;

Preferably, determine that subelement specifically comprises:

Determination module, it is configured to determine in the position of described discrete point set to treat the first adjoint point recently with described detection lamp pearl according to described detection lamp pearl, determines described detection lamp pearl and describedly treats that the distance of the first adjoint point is described first distance, and triggering judge module;

Described judge module, it is configured to treat whether the quantity of the first adjoint point is greater than 1 described in judgement, if described in treat that the quantity of the first adjoint point is for being greater than 1, then judge all described in treat whether the first adjoint point is in 90 ° of regions, if treat described in all, the first adjoint point is in 90 ° of regions, treat that the first adjoint point is described first adjoint point described in two that then determine satisfied first preset adjoint point condition, carry out preset second adjoint point deterministic model simultaneously, if treat described in all, the first adjoint point is not in 90 ° of regions, treat then that the first adjoint point is described first adjoint point, and determine that described first distance is equal with described second distance,

Described preset second adjoint point deterministic model comprises:

Whether have the judgement of described second adjoint point of satisfied second adjoint point first prerequisite, if exist, then determine that the distance of described detection lamp pearl and described second adjoint point is described second distance, and trigger described first comparer unit, if do not exist, then set described second distance as infinitely great, and set with described detection lamp pearl as the angle of second distance described in summit and described vertical range place vector is 0 °, and trigger described first comparer unit;

Preferably, described judge module, if it treats that the quantity of the first adjoint point is 1 described in being also configured to, then determine whether there is described second adjoint point of satisfied second adjoint point second prerequisite, if exist, then determine that the distance of described detection lamp pearl and described second adjoint point is described second distance, and trigger described first comparer unit, if do not exist, then set described second distance as infinitely great, and set with described detection lamp pearl as the angle of second distance described in summit and described vertical range place vector is 0 °, and trigger described first comparer unit;

Preferably, described first comparer unit specifically comprises:

First comparing module, it is configured to the described vertical range of described first distance, described second distance and described detection lamp pearl to compare;

If described vertical range is greater than the half of described second distance, then trigger described first and perform subelement, if described vertical range is not more than the half of described second distance, then the judgement between the half of carrying out second distance described in a half-sum that whether described vertical range be in described first distance;

If between the half of second distance described in the half-sum that described vertical range is in described first distance, then judge with described detection lamp pearl as whether the angle of second distance described in summit and described vertical range place vector is not less than 90 °, if not, then trigger described second and perform subelement, if, then trigger described first performance element, if described vertical range be not in described first distance a half-sum described in second distance half between, then trigger the described 3rd and perform subelement.

As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:

The LED lamp panel uniformity coefficient detection method of a kind of many BIN that the embodiment of the present invention provides and device, wherein, the LED lamp panel uniformity coefficient detection method of many BIN comprises: S1: extract the discrete point set corresponding to LED lamp panel be spliced to form by a plurality of LED lamp bead, discrete point set and the LED lamp bead position in LED lamp panel is corresponding; S2: specify a LED lamp bead of one of them BIN for detecting lamp pearl according to LED lamp panel; S3: detection lamp pearl and discrete point set are determined the exclusive shape corresponding with detecting lamp pearl according to preset deterministic model, and calculates the area value of exclusive shape; S4: repeated execution of steps S2 and the area value of step S3 to exclusive shape corresponding to each LED lamp bead belonging to current BIN obtain; S5: calculate current BIN uniformity coefficient according to the formula BIN uniformity coefficient=area value of the exclusive shape of all LED lamp bead of 4 × current BIN (and)/(area value of π × LED lamp panel); S6: repeated execution of steps S2 to step S5, until complete the acquisition of the BIN uniformity coefficient of all BIN, and the uniformity coefficient of value calculating acquisition LED lamp panel that all BIN uniformity coefficient obtained are averaged.In the present embodiment, by detection lamp pearl and discrete point set are determined the exclusive shape corresponding with detecting lamp pearl according to preset deterministic model, and calculate the area value of exclusive shape, repeat to obtain the area value of exclusive shape corresponding to each LED lamp bead belonging to current BIN, current BIN uniformity coefficient is calculated according to the formula BIN uniformity coefficient=area value of the exclusive shape of all LED lamp bead of 4 × current BIN (and)/(area value of π × LED lamp panel), until complete the acquisition of the BIN uniformity coefficient of all BIN, and the uniformity coefficient of value calculating acquisition LED lamp panel that all BIN uniformity coefficient obtained are averaged, make it possible to be to obtain uniformity coefficient evaluate, and choose according to evaluation result and best load in mixture scheme, thus after the LED lamp bead solved due to different B IN loads in mixture, the technical matters of the display consistency difference caused.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

The schematic flow sheet of an embodiment of the LED lamp panel uniformity coefficient detection method of a kind of many BIN that Fig. 1 provides for the embodiment of the present invention;

The schematic flow sheet of another embodiment of the LED lamp panel uniformity coefficient detection method of a kind of many BIN that Fig. 2 provides for the embodiment of the present invention;

The schematic flow sheet of another embodiment of the LED lamp panel uniformity coefficient detection method of a kind of many BIN that Fig. 3 provides for the embodiment of the present invention;

The structural representation of an embodiment of the LED lamp panel uniformity coefficient pick-up unit of a kind of many BIN that Fig. 4 provides for the embodiment of the present invention;

The structural representation of another embodiment of the LED lamp panel uniformity coefficient pick-up unit of a kind of many BIN that Fig. 5 provides for the embodiment of the present invention;

Fig. 6 is application examples LED lamp panel schematic diagram;

Fig. 7 is exclusive shape schematic diagram.

Embodiment

For making goal of the invention of the present invention, feature, advantage can be more obvious and understandable, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, the embodiments described below are only the present invention's part embodiments, and the embodiment of not all.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.

Refer to Fig. 1, an embodiment of the LED lamp panel uniformity coefficient detection method of a kind of many BIN that the embodiment of the present invention provides comprises:

S1: extract the discrete point set corresponding to LED lamp panel be spliced to form by a plurality of LED lamp bead;

When need a detection LED lamp panel be spliced to form by a plurality of LED lamp bead carry out uniformity coefficient detection time, and a plurality of LED lamp bead is when belonging to multiple BIN, first need to extract the discrete point set corresponding to LED lamp panel be spliced to form by a plurality of LED lamp bead, discrete point set and the LED lamp bead position in LED lamp panel is corresponding.

Such as shown in Fig. 6, one piece of LED lamp panel is made up of M × N number of LED lamp bead, supposes each LED to see to be made a point, and point is positioned at the center of each LED, then one piece of LED lamp panel can be regarded as and is made up of M × N number of point, and aforesaid discrete point set can be the point of the discrete irregular distribution in Fig. 6.

S2: specify a LED lamp bead of one of them BIN for detecting lamp pearl according to LED lamp panel;

After the discrete point set corresponding to the LED lamp panel that extraction is spliced to form by a plurality of LED lamp bead, need to specify a LED lamp bead of one of them BIN for detecting lamp pearl according to LED lamp panel.

Can be as in Fig. 6, choose one of them arbitrfary point as detection lamp pearl, this detection lamp pearl can be not tested.

S3: detection lamp pearl and discrete point set are determined the exclusive shape corresponding with detecting lamp pearl according to preset deterministic model, and calculates the area value of exclusive shape;

When specifying according to LED lamp panel the LED lamp bead of one of them BIN for after detecting lamp pearl, needing to detect lamp pearl and discrete point set determines the exclusive shape corresponding with detecting lamp pearl according to preset deterministic model, and calculating the area value of exclusive shape.

It should be noted that, the mode calculating exclusive shape will be described in detail in subsequent embodiment, just repeat no more herein.

S4: repeated execution of steps S2 and the area value of step S3 to exclusive shape corresponding to each LED lamp bead belonging to current BIN obtain;

When detection lamp pearl and discrete point set are determined the exclusive shape corresponding with detecting lamp pearl according to preset deterministic model, and after calculating the area value of exclusive shape, need the area value of repeated execution of steps S2 and step S3 to exclusive shape corresponding to each LED lamp bead belonging to current BIN to obtain.

S5: calculate current BIN uniformity coefficient according to the formula BIN uniformity coefficient=area value of the exclusive shape of all LED lamp bead of 4 × current BIN (and)/(area value of π × LED lamp panel);

After the area value of repeated execution of steps S2 and the step S3 exclusive shape corresponding to each LED lamp bead belonging to current BIN obtains, need to calculate current BIN uniformity coefficient according to the formula BIN uniformity coefficient=area value of the exclusive shape of all LED lamp bead of 4 × current BIN (and)/(area value of π × LED lamp panel).

Owing to dividing out discussion the LED of BIN same in lamp plate, the BINCODE supposing in lamp plate is the LED lamp bead number of m is P _m, each point is done an exclusive shape, then this BIN uniformity coefficient is expressed as: in formula: S _mifor the exclusive shape area of i-th LED of BINCODE m, A is the lamp plate total area.

S6: repeated execution of steps S2 to step S5, until complete the acquisition of the BIN uniformity coefficient of all BIN, and the uniformity coefficient of value calculating acquisition LED lamp panel that all BIN uniformity coefficient obtained are averaged.

After calculating current BIN uniformity coefficient according to the formula BIN uniformity coefficient=area value of the exclusive shape of all LED lamp bead of 4 × current BIN (and)/(area value of π × LED lamp panel), need repeated execution of steps S2 to step S5, until complete the acquisition of the BIN uniformity coefficient of all BIN, and the uniformity coefficient of value calculating acquisition LED lamp panel that all BIN uniformity coefficient obtained are averaged.

Such as total uniformity coefficient is: n in formula ₀for the quantity of LED lamp bead BINCODE.

Total uniformity coefficient 0<U≤1, when the ratio between the lamp pearl of the kind of BIN, often kind of BIN is all known, total uniformity coefficient U is larger, and it is better that arrangement is evaluated, and shows that lamp plate LED breaks up more even.Thus various LED random arrangement choose arrangement evaluate best scheme re-pack.

In the present embodiment, by detection lamp pearl and discrete point set are determined the exclusive shape corresponding with detecting lamp pearl according to preset deterministic model, and calculate the area value of exclusive shape, repeat to obtain the area value of exclusive shape corresponding to each LED lamp bead belonging to current BIN, current BIN uniformity coefficient is calculated according to the formula BIN uniformity coefficient=area value of the exclusive shape of all LED lamp bead of 4 × current BIN (and)/(area value of π × LED lamp panel), until complete the acquisition of the BIN uniformity coefficient of all BIN, and the uniformity coefficient of value calculating acquisition LED lamp panel that all BIN uniformity coefficient obtained are averaged, make it possible to be to obtain uniformity coefficient evaluate, and choose according to evaluation result and best load in mixture scheme, thus after the LED lamp bead solved due to different B IN loads in mixture, the technical matters of the display consistency difference caused.

The above is described in detail the process of the LED lamp panel uniformity coefficient detection method of many BIN, be described in detail to the acquisition detailed process of area value below, refer to Fig. 2, another embodiment of the LED lamp panel uniformity coefficient detection method of a kind of many BIN that the embodiment of the present invention provides comprises:

201, the discrete point set corresponding to the LED lamp panel be spliced to form by a plurality of LED lamp bead is extracted;

Such as shown in Fig. 6, one piece of LED lamp panel is made up of M × N number of LED, supposes each LED to see to be made a point, and point is positioned at the center of each LED, then one piece of LED lamp panel can be regarded as and is made up of M × N number of point, and aforesaid discrete point set can be the point of the discrete irregular distribution in Fig. 6.

202, specify a LED lamp bead of one of them BIN for detecting lamp pearl according to LED lamp panel;

203, first Distance geometry second distance is determined at the position relationship of discrete point set according to apart from preset deterministic model according to detection lamp pearl;

When specifying the LED lamp bead of one of them BIN for after detecting lamp pearl according to LED lamp panel, need to determine first Distance geometry second distance at the position relationship of discrete point set according to apart from preset deterministic model according to detection lamp pearl.

It should be noted that, the obtain manner of the first Distance geometry second distance will be described in detail in subsequent embodiment, just repeat no more herein.

204, the vertical range of the first distance, second distance and detection lamp pearl is compared, if vertical range is greater than the half of second distance, then perform step 205, if vertical range is between the half of a half-sum second distance of the first distance, then perform step 206, if vertical range is not between the half of a half-sum second distance of the first distance, then perform step 207;

When according to detecting the lamp pearl position relationship at discrete point set according to after determining the first Distance geometry second distance apart from preset deterministic model, the vertical range of the first distance, second distance and detection lamp pearl is needed to compare, if vertical range is greater than the half of second distance, then perform step 205, if vertical range is between the half of a half-sum second distance of the first distance, then perform step 206, if vertical range is not between the half of a half-sum second distance of the first distance, then perform step 207.

Aforesaid vertical range is detect the distance on the lamp pearl LED lamp panel border nearest with it.

205, determine that exclusive shape is the semicircle of the half of the first distance by radius, and major axis be the half of second distance, minor axis is the semiellipse composition of the half of the first distance, and calculates the area value of exclusive shape;

When vertical range is greater than the half of second distance, then determine that exclusive shape is the semicircle of the half of the first distance by radius, and major axis be the half of second distance, minor axis is the semiellipse composition of the half of the first distance, and calculates the area value of exclusive shape.

206, determine that exclusive shape is the semicircle of the half of the first distance by radius, and major axis be vertical range, minor axis is the semiellipse composition of the half of the first distance, and calculates the area value of exclusive shape;

Between the half of a half-sum second distance that vertical range is in the first distance, then determine that exclusive shape is the semicircle of the half of the first distance by radius, and major axis be vertical range, minor axis is the semiellipse composition of the half of the first distance, and calculates the area value of exclusive shape.

207, determine that exclusive shape is the semicircle of vertical range by radius, and major axis be the half of the first distance, minor axis is the semiellipse composition of vertical range, and calculates the area value of exclusive shape;

When vertical range is not more than the half of the first distance, then determine that exclusive shape is the semicircle of vertical range by radius, and major axis be the half of the first distance, minor axis is the semiellipse composition of vertical range, and calculates the area value of exclusive shape.

208, the area value of repeated execution of steps 202 to step 207 to exclusive shape corresponding to each LED lamp bead belonging to current BIN obtains;

When detection lamp pearl and discrete point set are determined the exclusive shape corresponding with detecting lamp pearl according to preset deterministic model, and after calculating the area value of exclusive shape, need the area value of repeated execution of steps 202 to step 207 to exclusive shape corresponding to each LED lamp bead belonging to current BIN to obtain.

209, current BIN uniformity coefficient is calculated according to the formula BIN uniformity coefficient=area value of the exclusive shape of all LED lamp bead of 4 × current BIN (and)/(area value of π × LED lamp panel);

After the area value of repeated execution of steps 202 to the step 207 exclusive shape corresponding to each LED lamp bead belonging to current BIN obtains, need to calculate current BIN uniformity coefficient according to the formula BIN uniformity coefficient=area value of the exclusive shape of all LED lamp bead of 4 × current BIN (and)/(area value of π × LED lamp panel).

Due to the LED lamp bead of BIN same in lamp plate is separately discussed, the BINCODE supposing in lamp plate is the LED lamp bead number of m is P _m, each point is done an exclusive shape, then this BIN uniformity coefficient is expressed as: in formula: S _mifor the exclusive shape area of i-th LED of BINCODE m, A is the lamp plate total area.

210, repeated execution of steps 202 to step 209, until the acquisition completing the BIN uniformity coefficient of all BIN, and the uniformity coefficient of value calculating acquisition LED lamp panel that all BIN uniformity coefficient obtained are averaged.

After calculating current BIN uniformity coefficient according to the formula BIN uniformity coefficient=area value of the exclusive shape of all LED lamp bead of 4 × current BIN (and)/(area value of π × LED lamp panel), need repeated execution of steps 202 to step 209, until complete the acquisition of the BIN uniformity coefficient of all BIN, and the uniformity coefficient of value calculating acquisition LED lamp panel that all BIN uniformity coefficient obtained are averaged.

The area of the exclusive shape in the present embodiment can be calculated by circular radius and oval radius, and is known to the skilled person, and just repeats no more herein.

The above is described in detail the acquisition detailed process of area value, be described in detail to the deterministic process of the first Distance geometry second distance below, refer to Fig. 3, another embodiment of the LED lamp panel uniformity coefficient detection method of a kind of many BIN that the embodiment of the present invention provides comprises:

301, the discrete point set corresponding to the LED lamp panel be spliced to form by a plurality of LED lamp bead is extracted;

302, specify a LED lamp bead of one of them BIN for detecting lamp pearl according to LED lamp panel;

303, according to detect lamp pearl to determine in the position of discrete point set with detect lamp pearl nearest treat the first adjoint point, determine detect lamp pearl and treat that the distance of the first adjoint point is the first distance, and judge to treat whether the quantity of the first adjoint point is greater than 1, if treat, the quantity of the first adjoint point is for being greater than 1, then perform step 304, if treat, the quantity of the first adjoint point is 1, then perform step 305;

When specifying the LED lamp bead of one of them BIN for after detecting lamp pearl according to LED lamp panel, need according to detect lamp pearl to determine in the position of discrete point set with detect lamp pearl nearest treat the first adjoint point, determine detect lamp pearl and treat that the distance of the first adjoint point is the first distance, and judge to treat whether the quantity of the first adjoint point is greater than 1, if treat, the quantity of the first adjoint point is for being greater than 1, then perform step 304, if treat, the quantity of the first adjoint point is 1, then perform step 305.

304, judge whether need the first adjoint point is in 90 ° of regions, if first adjoint point that needs is in 90 ° of regions, then perform step 306, if first adjoint point that needs is not in 90 ° of regions, then perform step 307;

When treating that the quantity of the first adjoint point is for being greater than 1, then judge whether need the first adjoint point is in 90 ° of regions, if first adjoint point that needs is in 90 ° of regions, then perform step 306, if first adjoint point that needs is not in 90 ° of regions, then perform step 307.

305, the second adjoint point of satisfied second adjoint point second prerequisite is determined whether there is, if exist, then determine that the distance detecting lamp pearl and the second adjoint point is second distance, and perform step 308, if do not exist, then set second distance as infinitely great, and set to detect the angle of lamp pearl as summit second distance and vertical range place vector for 0, and perform step 308;

When treating that the quantity of the first adjoint point is 1, then determine whether there is the second adjoint point of satisfied second adjoint point second prerequisite, if exist, then determine that the distance detecting lamp pearl and the second adjoint point is second distance, and perform step 308, if do not exist, then set second distance as infinitely great, and set to detect the angle of lamp pearl as summit second distance and vertical range place vector for 0, and perform step 308.

Wherein, second adjoint point second prerequisite is that the angle detecting angle second adjoint point that lamp pearl is summit and the first adjoint point is not less than 90 °, and the distance detecting lamp pearl and the second adjoint point is be not less than the bee-line in 90 ° of scopes with the angle detecting angle second adjoint point that lamp pearl is summit and the first adjoint point.

306, determine that two of satisfied first preset adjoint point condition are treated that the first adjoint point is the first adjoint point, whether have the judgement of the second adjoint point of satisfied second adjoint point first prerequisite simultaneously, if exist, then determine that the distance detecting lamp pearl and the second adjoint point is second distance, and perform step 308, if do not exist, then set second distance as infinitely great, and set to detect lamp pearl as the angle of summit second distance and vertical range place vector to be 0 °, and to perform step 308;

When to need the first adjoint point be in 90 ° of regions, then determine that two of satisfied first preset adjoint point condition are treated that the first adjoint point is the first adjoint point, whether have the judgement of the second adjoint point of satisfied second adjoint point first prerequisite simultaneously, if exist, then determine that the distance detecting lamp pearl and the second adjoint point is second distance, and perform step 308, if do not exist, then set second distance as infinitely great, and set to detect lamp pearl as the angle of summit second distance and vertical range place vector to be 0 °, and to perform step 308.

Wherein, first preset adjoint point condition is detect maximum two of angle that lamp pearl is summit to treat that the first adjoint point is the first adjoint point, second adjoint point first prerequisite is that the angle detecting angle second adjoint point that lamp pearl is summit and two the first adjoint points is all not less than 90 °, and the distance detecting lamp pearl and the second adjoint point is all be not less than the bee-line in 90 ° of scopes with the angle detecting angle second adjoint point that lamp pearl is summit and two the first adjoint points.

307, treat that the first adjoint point is the first adjoint point, and determine that the first distance is equal with second distance;

When need the first adjoint point and be not in 90 ° of regions, then treat that the first adjoint point is the first adjoint point, and determine that the first distance is equal with second distance, and perform step 308.

308, the vertical range of the first distance, second distance and detection lamp pearl is compared, if vertical range is greater than the half of second distance, then perform step 311, if vertical range is not more than the half of second distance, then execution step 309;

After step 305 or step 306 or step 307, the vertical range of the first distance, second distance and detection lamp pearl is needed to compare, if vertical range is greater than the half of second distance, then execution step 311, if vertical range is not more than the half of second distance, then perform step 309.

309, the judgement between half that whether vertical range be in a half-sum second distance of the first distance is carried out, if vertical range is between the half of a half-sum second distance of the first distance, then perform step 310, if vertical range is not between the half of a half-sum second distance of the first distance, then perform step 313;

When vertical range is not more than the half of second distance, then carry out the judgement between half that whether vertical range be in a half-sum second distance of the first distance, if vertical range is between the half of a half-sum second distance of the first distance, then perform step 310, if vertical range is not between the half of a half-sum second distance of the first distance, then perform step 313.

310, judge to detect lamp pearl and whether be not less than 90 ° as the angle of summit second distance and vertical range place vector, if not, then perform step 312, if so, then perform step 311;

Between the half of a half-sum second distance that vertical range is in the first distance, then judge to detect lamp pearl and whether be not less than 90 ° as the angle of summit second distance and vertical range place vector, if not, then perform step 312, if so, then perform step 311.

311, determine that exclusive shape is the semicircle of the half of the first distance by radius, and major axis be the half of second distance, minor axis is the semiellipse composition of the half of the first distance, and calculates the area value of exclusive shape;

Determine that exclusive shape is the semicircle of the half of the first distance by radius, and major axis be the half of second distance, minor axis is the semiellipse composition of the half of the first distance, and calculates the area value of exclusive shape.

312, determine that exclusive shape is the semicircle of the half of the first distance by radius, and major axis be vertical range, minor axis is the semiellipse composition of the half of the first distance, and calculates the area value of exclusive shape;

Determine that exclusive shape is the semicircle of the half of the first distance by radius, and major axis be vertical range, minor axis is the semiellipse composition of the half of the first distance, and calculates the area value of exclusive shape.

313, determine that exclusive shape is the semicircle of vertical range by radius, and major axis be the half of the first distance, minor axis is the semiellipse composition of vertical range, and calculates the area value of exclusive shape;

Determine that exclusive shape is the semicircle of vertical range by radius, and major axis be the half of the first distance, minor axis is the semiellipse composition of vertical range, and calculates the area value of exclusive shape.

314, the area value of repeated execution of steps 303 to exclusive shape corresponding to each LED lamp bead belonging to current BIN obtains;

When detection lamp pearl and discrete point set are determined the exclusive shape corresponding with detecting lamp pearl according to preset deterministic model, and after calculating the area value of exclusive shape, need the area value of repeated execution of steps 303 to exclusive shape corresponding to each LED lamp bead belonging to current BIN to obtain.

315, current BIN uniformity coefficient is calculated according to the formula BIN uniformity coefficient=area value of the exclusive shape of all LED lamp bead of 4 × current BIN (and)/(area value of π × LED lamp panel);

After the area value of the repeated execution of steps 303 exclusive shape corresponding to each LED lamp bead belonging to current BIN obtains, need to calculate current BIN uniformity coefficient according to the formula BIN uniformity coefficient=area value of the exclusive shape of all LED lamp bead of 4 × current BIN (and)/(area value of π × LED lamp panel).

316, repeated execution of steps 303, until the acquisition completing the BIN uniformity coefficient of all BIN, and the uniformity coefficient of value calculating acquisition LED lamp panel that all BIN uniformity coefficient obtained are averaged.

After calculating current BIN uniformity coefficient according to the formula BIN uniformity coefficient=area value of the exclusive shape of all LED lamp bead of 4 × current BIN (and)/(area value of π × LED lamp panel), need repeated execution of steps 303, until complete the acquisition of the BIN uniformity coefficient of all BIN, and the uniformity coefficient of value calculating acquisition LED lamp panel that all BIN uniformity coefficient obtained are averaged.

In the present embodiment, by detection lamp pearl and discrete point set are determined the exclusive shape corresponding with detecting lamp pearl according to preset deterministic model, and calculate the area value of exclusive shape, repeat to obtain the area value of exclusive shape corresponding to each LED lamp bead belonging to current BIN, current BIN uniformity coefficient is calculated according to the formula BIN uniformity coefficient=area value of the exclusive shape of all LED lamp bead of 4 × current BIN (and)/(area value of π × LED lamp panel), until complete the acquisition of the BIN uniformity coefficient of all BIN, and the uniformity coefficient of value calculating acquisition LED lamp panel that all BIN uniformity coefficient obtained are averaged, make it possible to be to obtain uniformity coefficient evaluate, and choose according to evaluation result and best load in mixture scheme, thus after the LED lamp bead solved due to different B IN loads in mixture, the technical matters of the display consistency difference caused, and exclusive the multiple of shape area value is determined, further increase the evaluation of uniformity coefficient.

Below in conjunction with Fig. 6 to the description carrying out application examples embodiment illustrated in fig. 3:

Concentrate at the point of two-dimensional space, for any point O, find and nearest neighbor point P ₁, distance is l ₁, then find 1 P ₂, make P ₂at ∠ P ₁oP ₂nearest point in the scope of>=90 °, distance is l ₂.Doing one with radius is l ₁the semicircle of/2 and major axis are l ₂/ 2, minor axis is l ₁the semiellipse of/2 the figure that forms, be called exclusive shape, area is designated as S.If nearest neighbor point P ₁there is multiple point, when arest neighbors point set all local in the region of 90 °, find a little concentrate 2 P ₁', P ₁", make angle ∠ P ₁' OP ₁" maximum, then P ₂need to meet ∠ P simultaneously ₁' OP ₂>=90 ° and ∠ P ₁" OP ₂the condition of>=90 °.When the regional perspective of the local of arest neighbors point set is greater than 90 °, then exclusive shape is radius is l ₁the circle of/2.

One piece of LED lamp panel is made up of M × N number of LED lamp bead, supposes each LED lamp bead to see to be made a point, and point is positioned at the center of each LED, then one piece of LED lamp panel can be regarded as and is made up of M × N number of point.Divide out discussion the LED of BIN same in lamp plate, the BINCODE supposing in lamp plate is the LED lamp bead number of m is P _m, each point is done an exclusive shape, then this BIN uniformity coefficient is expressed as: in formula: S _mifor the exclusive shape area of i-th LED of BINCODE m, A is the lamp plate total area.

If exclusive shape exceeds lamp plate border, then need to make correction.If LED is Q to the intersection point on the nearest border of lamp plate, distance is x.Work as l ₁/ 2<x≤l ₂/ 2, if ∠ is QOP ₂<90 °, exclusive shape is then l by radius ₁the semicircle of/2 and major axis are x, minor axis is l ₁/ 2 semiellipse composition figure.If ∠ is QOP ₂>=90 °, then do not need to revise.As x≤l ₁when/2, exclusive shape is then the semicircle of x and major axis by radius is l ₁/ 2, minor axis is the figure of the semiellipse composition of x.

If there is no P ₂, as x≤l ₁/ 2, exclusive shape is then the semicircle of x and major axis by radius is l ₁/ 2, minor axis is the figure of the semiellipse composition of x.Work as x>l ₁when/2, exclusive shape is then for being l by radius ₁the semicircle of/2 and major axis are x, minor axis is l ₁/ 2 semiellipse composition figure.

Total uniformity coefficient is: n in formula ₀for the quantity of LED lamp bead BINCODE.

Further, suppose that Fig. 6 is the LED lamp panel of one piece of mixed BIN, each grid length of side is 1, and red (diagram twill grid) and blue (diagram is without filling grid) are respectively the lamp pearl of two kinds of different B IN.Now explain for the lamp pearl of red BIN (diagram twill grid).

For point 7 (being designated as O7, all the same below), known P ₁for O8, and ∠ P ₁o7P ₂>90 °, then P ₂for O6, l ₁=1, center is x=13/2 to the nearest frontier distance of lamp plate, meets x>l ₂/ 2, exclusive shape be by radius be 1/2 semicircle and major axis be minor axis be 1/2 semiellipse institute form.

For O12, P ₁for O9 and O10, known P ₁' be O9, P ₁" be O10, ∠ P ₁' O12P ₁" maximum and within the scope of 90 °, then P ₂for O16, just meet ∠ P simultaneously ₁' O12P ₂>=90 ° and ∠ P ₁" O12P ₂>=90 °, l ₂=3, x=7/2, meets x>l ₂/ 2, exclusive shape is for by radius to be semicircle and major axis be 3/2, minor axis is semiellipse institute form.

For O6, P ₁for O5 and O7, known P ₁' be O5, P ₁" be O7, ∠ P ₁' O6P ₁" >90 °, then P ₁for O5, P ₂for O7, x=11/2, meets x>l ₂/ 2, to be radius be exclusive shape circle.

For O15, P ₁for O14, P ₂for O11, l ₁=1, x=3/2, meets l ₁/ 2<x≤l ₂/ 2, and ∠ QO15P ₂>90 °, exclusive shape be by radius be 1/2 semicircle and major axis be minor axis be 1/2 semiellipse institute form.

For O3, P ₁for O4, P ₂for O1, l ₁=1, x=3/2, meets l ₁/ 2<x≤l ₂/ 2, but ∠ QO3P ₂<90 °, exclusive shape be by radius be 1/2 semicircle and major axis be 3/2, minor axis be 1/2 semiellipse institute form.

For O1, P ₁for O2, P ₂for O3, x=1/2, meets x<l ₁/ 2, exclusive shape be by radius be 1/2 semicircle and major axis be minor axis be 1/2 semiellipse institute form.

For O14, P ₁for O15, but at ∠ P ₁o14P ₂p is can not find within the scope of>=90 ° ₂, l ₁=1, l ₂=∞, x=3/2, meet l ₁/ 2<x≤l ₂/ 2, exclusive shape be by radius be 1/2 semicircle and major axis be 3/2, minor axis be 1/2 semiellipse institute form.

For O16, P ₁for O12, but at ∠ P ₁o16P ₂p is can not find within the scope of>=90 ° ₂, l ₁=3, l ₂=∞, x=1/2, meet x<l ₁/ 2, exclusive shape be by radius be 1/2 semicircle and major axis be 3/2, minor axis be 1/2 semiellipse institute form.

Aforesaid exclusive shape, and l ₁and l ₂, P ₁and P ₂can be as shown in Figure 7.

Refer to Fig. 4, an embodiment of the LED lamp panel uniformity coefficient pick-up unit of a kind of many BIN in the embodiment of the present invention comprises:

Extraction unit 401, it is configured to extract the discrete point set corresponding to LED lamp panel be spliced to form by a plurality of LED lamp bead, and discrete point set and the LED position in LED lamp panel is corresponding;

Designating unit 402, it is configured to specify a LED lamp bead of one of them BIN for detecting lamp pearl according to LED lamp panel;

Exclusive shape unit 403, it is configured to detection lamp pearl and discrete point set to determine the exclusive shape corresponding with detecting lamp pearl according to preset deterministic model, and calculates the area value of exclusive shape;

After the area value of the exclusive shape of a detection lamp pearl has calculated, repeated trigger designating unit and exclusive shape unit, until complete the acquisition of the area value to exclusive shape corresponding to each LED lamp bead belonging to current BIN, and trigger BIN uniformity coefficient computing unit 404;

BIN uniformity coefficient computing unit 404, it is configured to calculate current BIN uniformity coefficient according to the formula BIN uniformity coefficient=area value of the exclusive shape of all LED lamp bead of 4 × current BIN (and)/(area value of π × LED lamp panel);

After the uniformity coefficient of a BIN has calculated, the uniformity coefficient that repeated trigger designating unit 402, exclusive shape unit 403 and BIN uniformity coefficient computing unit 404 carry out next BIN calculates, until complete the acquisition of the BIN uniformity coefficient of all BIN, and trigger total uniformity coefficient unit 405;

Total uniformity coefficient unit 405, its be configured to obtain all BIN uniformity coefficient be averaged value calculate acquisition LED lamp panel uniformity coefficient.

In the present embodiment, by exclusive shape unit 403, detection lamp pearl and discrete point set are determined the exclusive shape corresponding with detecting lamp pearl according to preset deterministic model, and calculate the area value of exclusive shape, BIN uniformity coefficient computing unit 404 repeats to obtain the area value of exclusive shape corresponding to each LED lamp bead belonging to current BIN, current BIN uniformity coefficient is calculated according to the formula BIN uniformity coefficient=area value of the exclusive shape of all LED lamp bead of 4 × current BIN (and)/(area value of π × LED lamp panel), until complete the acquisition of the BIN uniformity coefficient of all BIN, total uniformity coefficient unit 405 to obtain all BIN uniformity coefficient be averaged value calculate acquisition LED lamp panel uniformity coefficient, make it possible to be to obtain uniformity coefficient evaluate, and choose according to evaluation result and best load in mixture scheme, thus after the LED lamp bead solved due to different B IN loads in mixture, the technical matters of the display consistency difference caused.

The above is described in detail each unit of the LED lamp panel uniformity coefficient pick-up unit of many BIN, to be described in detail each subelement below, refer to Fig. 5, another embodiment of the LED lamp panel uniformity coefficient pick-up unit of a kind of many BIN in the embodiment of the present invention comprises:

Extraction unit 501, it is configured to extract the discrete point set corresponding to LED lamp panel be spliced to form by a plurality of LED lamp bead, and discrete point set and the LED position in LED lamp panel is corresponding;

Designating unit 502, it is configured to specify a LED lamp bead of one of them BIN for detecting lamp pearl according to LED lamp panel;

Exclusive shape unit 503, it is configured to detection lamp pearl and discrete point set to determine the exclusive shape corresponding with detecting lamp pearl according to preset deterministic model, and calculates the area value of exclusive shape;

Exclusive shape unit 503 specifically comprises:

Determine subelement 5031, it is configured to determine first Distance geometry second distance at the position relationship of discrete point set according to apart from preset deterministic model according to detection lamp pearl;

Determine that subelement 5031 specifically comprises:

Determination module 5031a, its be configured to according to detect lamp pearl to determine in the position of discrete point set with detect lamp pearl nearest treat the first adjoint point, determining to detect lamp pearl with the distance treating the first adjoint point is the first distance, and triggers judge module 5031b;

Judge module 5031b, whether its quantity being configured to judge to treat the first adjoint point is greater than 1, if treat, the quantity of the first adjoint point is for being greater than 1, then judge whether need the first adjoint point is in 90 ° of regions, if first adjoint point that needs is in 90 ° of regions, then determine that two of satisfied first preset adjoint point condition are treated that the first adjoint point is the first adjoint point, carry out preset second adjoint point deterministic model simultaneously, if first adjoint point that needs is not in 90 ° of regions, then treat that the first adjoint point is the first adjoint point, and determine that the first distance is equal with second distance;

Judge module 5031b, if it is also configured to treat that the quantity of the first adjoint point is 1, then determine whether there is the second adjoint point of satisfied second adjoint point second prerequisite, if exist, then determine that the distance detecting lamp pearl and the second adjoint point is second distance, and trigger the first comparer unit 5032, if do not exist, then set second distance as infinitely great, and set with detect lamp pearl as the angle of summit second distance and vertical range place vector be 0 °, and trigger the first comparer unit 5032, wherein, second adjoint point second prerequisite is that the angle detecting angle second adjoint point that lamp pearl is summit and the first adjoint point is not less than 90 °.

Preset second adjoint point deterministic model comprises:

Whether have the judgement of the second adjoint point of satisfied second adjoint point first prerequisite, if exist, then determine that the distance detecting lamp pearl and the second adjoint point is second distance, and trigger the first comparer unit 5032, if do not exist, then set second distance as infinitely great, and set to detect lamp pearl as the angle of summit second distance and vertical range place vector to be 0 °, and to trigger the first comparer unit 5032;

Wherein, the first preset adjoint point condition is detect maximum two of angle that lamp pearl is summit to treat that the first adjoint point is the first adjoint point;

Second adjoint point first prerequisite is that the angle detecting angle second adjoint point that lamp pearl is summit and two the first adjoint points is all not less than 90 °.

First comparer unit 5032, it is configured to the vertical range of the first distance, second distance and detection lamp pearl to compare, if vertical range is greater than the half of second distance, then trigger first and perform subelement 5033, if vertical range is between the half of a half-sum second distance of the first distance, then trigger second and perform subelement 5034, if vertical range is not more than the half of the first distance, then triggers the 3rd and perform subelement 5035;

First comparer unit 5032 specifically comprises: the first comparing module 5032a, and it is configured to the vertical range of the first distance, second distance and detection lamp pearl to compare;

If vertical range is greater than the half of second distance, then triggers first and perform subelement 5033, if vertical range is not more than the half of second distance, then carry out the judgement between half that whether vertical range be in a half-sum second distance of the first distance;

If vertical range is between the half of a half-sum second distance of the first distance, then judging to detect lamp pearl as the angle of summit second distance and vertical range place vector is not less than 90 °, if, then trigger second and perform subelement 5034, if not, then trigger the first performance element 5033, if vertical range is not between the half of a half-sum second distance of the first distance, then triggers the 3rd and perform subelement 5035.

First performs subelement 5033, it is configured to determine that exclusive shape is the semicircle of the half of the first distance by radius, and major axis be the half of second distance, minor axis is the semiellipse composition of the half of the first distance, and calculates the area value of exclusive shape, and trigger BIN uniformity coefficient computing unit 504;

Second performs subelement 5034, it is configured to determine that exclusive shape is the semicircle of the half of the first distance by radius, and major axis be vertical range, minor axis is the semiellipse composition of the half of the first distance, and calculates the area value of exclusive shape, and trigger BIN uniformity coefficient computing unit 504;

3rd performs subelement 5035, it is configured to determine that exclusive shape is the semicircle of vertical range by radius, and major axis be the half of the first distance, minor axis is the semiellipse composition of vertical range, and calculate the area value of exclusive shape, and trigger BIN uniformity coefficient computing unit 504, wherein, vertical range is detect the distance on the lamp pearl LED lamp panel border nearest with it.

After the area value of the exclusive shape of a detection lamp pearl has calculated, repeated trigger designating unit and exclusive shape unit, until complete the acquisition of the area value to exclusive shape corresponding to each LED lamp bead belonging to current BIN, and trigger BIN uniformity coefficient computing unit 504;

BIN uniformity coefficient computing unit 504, it is configured to calculate current BIN uniformity coefficient according to the formula BIN uniformity coefficient=area value of the exclusive shape of all LED lamp bead of 4 × current BIN (and)/(area value of π × LED lamp panel);

After the uniformity coefficient of a BIN has calculated, the uniformity coefficient that repeated trigger designating unit 502, exclusive shape unit 503 and BIN uniformity coefficient computing unit 504 carry out next BIN calculates, until complete the acquisition of the BIN uniformity coefficient of all BIN, and trigger total uniformity coefficient unit 505;

Total uniformity coefficient unit 505, its be configured to obtain all BIN uniformity coefficient be averaged value calculate acquisition LED lamp panel uniformity coefficient.

In the present embodiment, by exclusive shape unit 503, detection lamp pearl and discrete point set are determined the exclusive shape corresponding with detecting lamp pearl according to preset deterministic model, and calculate the area value of exclusive shape, BIN uniformity coefficient computing unit 504 repeats to obtain the area value of exclusive shape corresponding to each LED lamp bead belonging to current BIN, current BIN uniformity coefficient is calculated according to the formula BIN uniformity coefficient=area value of the exclusive shape of all LED lamp bead of 4 × current BIN (and)/(area value of π × LED lamp panel), until complete the acquisition of the BIN uniformity coefficient of all BIN, total uniformity coefficient unit 505 to obtain all BIN uniformity coefficient be averaged value calculate acquisition LED lamp panel uniformity coefficient, make it possible to be to obtain uniformity coefficient evaluate, and choose according to evaluation result and best load in mixture scheme, thus after the LED lamp bead solved due to different B IN loads in mixture, the technical matters of the display consistency difference caused, and exclusive the multiple of shape area value is determined, further increase the evaluation of uniformity coefficient.

Should be noted that, the LED in aforesaid technical solution of the present invention and LED lamp bead are same feature, the difference of the mode only just expressed, and well known to a person skilled in the art technology.

The above, above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims

1. a LED lamp panel uniformity coefficient detection method of BIN more than, is characterized in that, comprising:

2. the LED lamp panel uniformity coefficient detection method of many BIN according to claim 1, it is characterized in that, described step S3 specifically comprises:

3. the LED lamp panel uniformity coefficient detection method of many BIN according to claim 2, it is characterized in that, described step S31 specifically comprises:

Described preset second adjoint point deterministic model comprises:

4. the LED lamp panel uniformity coefficient detection method of many BIN according to claim 3, it is characterized in that, if described in treat that the quantity of the first adjoint point is 1, then determine whether there is described second adjoint point of satisfied second adjoint point second prerequisite, if exist, then determine that the distance of described detection lamp pearl and described second adjoint point is described second distance, and perform step S32, if do not exist, then set described second distance as infinitely great, and set with described detection lamp pearl as the angle of second distance described in summit and described vertical range place vector is 0 °, and perform step S32;

5. the LED lamp panel uniformity coefficient detection method of the many BIN according to Claims 2 or 3, it is characterized in that, step S32 specifically comprises:

6. a LED lamp panel uniformity coefficient pick-up unit of BIN more than, is characterized in that, comprising:

7. the LED lamp panel uniformity coefficient pick-up unit of many BIN according to claim 6, is characterized in that, exclusive shape unit specifically comprises:

8. the LED lamp panel uniformity coefficient pick-up unit of many BIN according to claim 7, is characterized in that, determine that subelement specifically comprises:

Described preset second adjoint point deterministic model comprises:

9. the LED lamp panel uniformity coefficient pick-up unit of many BIN according to claim 8, it is characterized in that, described judge module, if it treats that the quantity of the first adjoint point is 1 described in being also configured to, then determine whether there is described second adjoint point of satisfied second adjoint point second prerequisite, if exist, then determine that the distance of described detection lamp pearl and described second adjoint point is described second distance, and trigger described first comparer unit, if do not exist, then set described second distance as infinitely great, and set with described detection lamp pearl as the angle of second distance described in summit and described vertical range place vector is 0 °, and trigger described first comparer unit,

10. the LED lamp panel uniformity coefficient pick-up unit of the many BIN according to claim 7 or 8, is characterized in that, described first comparer unit specifically comprises: