CN103983427B - Bearing calibration based on the LED lamp panel uniformity - Google Patents
Bearing calibration based on the LED lamp panel uniformity Download PDFInfo
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- CN103983427B CN103983427B CN201410220384.8A CN201410220384A CN103983427B CN 103983427 B CN103983427 B CN 103983427B CN 201410220384 A CN201410220384 A CN 201410220384A CN 103983427 B CN103983427 B CN 103983427B
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Abstract
The embodiment of the invention discloses a kind of bearing calibration based on the LED lamp panel uniformity, just realizes the multi-angle inspection to the LED lamp panel overall region under big visual angle, so as to solve the problems, such as the technological deficiency of inclined feux rouges or non-homogeneous white light.Present invention method includes：S1：The optical information of LED lamp panel is obtained from presetting angle by sensor, optical information includes light intensity, GTG and wavelength；S2：Optical information is analyzed according to preset analysis mode, if meeting prerequisite, the LED lamp panel uniformity is consistent, if being unsatisfactory for prerequisite, comparison is corrected to the optical information of LED lamp panel.
Description
Technical field
The present invention relates to photoelectric detection technology field, more particularly to a kind of bearing calibration based on the LED lamp panel uniformity.
Background technology
LED lamp panel is to be combined by several LEDs according to preset arrangement mode, can with as desired by
Driving chip lightening LED lamp lights, at the same time, the difference of the quality specification of the design generally existing LED of several LEDs
Produce the uneven technical problem of colour temperature, and cause LED lamp panel light after color and luster brightness it is inconsistent the problem of so that LED
The inspection research of the lamp plate uniformity is also arisen at the historic moment.
Existing LED lamp panel uniformity test technology, generally it is to be passed through after LED produces by LED manufacturer first
Associated assay devices are to LED from upper detection light intensity is faced, and then, the LED lamp panel being combined into for several LEDs passes through
Human eye range estimation carries out the relative inspection of overall light intensity.
The above-mentioned LED lamp panel uniformity test technology referred to, the former by facing due to can only be checked have ignored
The inclined feux rouges of LED lamp panel overall region or the technological deficiency of non-homogeneous white light under big visual angle, and, the latter is estimated by human eye
Bearing calibration be easier to produce test error technical problem.
The content of the invention
The embodiments of the invention provide a kind of bearing calibration based on the LED lamp panel uniformity, just realize under big visual angle
LED lamp panel overall region multi-angle inspection, so as to solve the problems, such as the technological deficiency of inclined feux rouges or non-homogeneous white light.
A kind of bearing calibration based on the LED lamp panel uniformity provided in an embodiment of the present invention, step include：
S1：By sensor from presetting angle obtain LED lamp panel optical information, the optical information include light intensity, GTG,
Wavelength, colour temperature and color gamut value；
S2：The optical information is analyzed according to preset analysis mode, if meeting prerequisite, the LED lamp panel
The uniformity is consistent, if being unsatisfactory for prerequisite, comparison is corrected to the optical information of the LED lamp panel.
Preferably,
The optical information for obtaining LED lamp panel from presetting angle by sensor specifically includes：
The sensor carries out relative motion with the LED lamp panel, and multiple regions of LED lamp panel are obtained from multiple angles
Region optical information；
Wherein, the region possesses with the angle corresponding relation.
Preferably,
The optical information for obtaining LED lamp panel from presetting angle by sensor specifically includes：
By being placed in multiple sensors of diverse location from the institute in multiple regions of multiple angles acquisition LED lamp panel
State region optical information；
Wherein, the region possesses with the angle corresponding relation.
Preferably,
The optical information for obtaining LED lamp panel from presetting angle by sensor specifically includes：
The optical information of the LED lamp panel after optical filtering processing is obtained from the presetting angle by sensor.
Preferably,
Also include after step S1：
The optical information of multiple angles to getting is handled according to preset proportion value, the preset proportion and angle
Degree is associated.
Preferably,
Step S2 is specifically included：
Analyze whether the optical information meets preset threshold value, if so, then the LED lamp panel uniformity is consistent, if it is not, then right
The optical information of the LED lamp panel is corrected comparison.
Preferably,
Step S2 is specifically included：
The Pixel Information corresponding with the optical information is counted according to the optical information；
Judge whether the Pixel Information meets preset statistical condition, if so, then the LED lamp panel uniformity is consistent, if
It is no, then comparison is corrected to the optical information of the LED lamp panel.
Preferably,
Step S2 is specifically included：
Red optical information or green optical information or blue optical information are subjected to preset comparison pattern, if meeting preset comparison mould
The condition of formula, then the LED lamp panel uniformity is consistent, if the condition of preset comparison pattern is unsatisfactory for, to the LED lamp panel
The optical information is corrected comparison.
Preferably,
The preset comparison pattern is that sample compares pattern or optional region compares pattern；
It is that multiple regions are contrasted in the LED lamp panel that the optionally region, which compares pattern,.
Preferably,
Step S2 is specifically included：
Sub-zone dividing is carried out to the optical information of the LED lamp panel under the presetting angle；
Pattern is compared according to subregion subregion comparison is carried out to the optical information, if meeting preset sub-regions optical information bar
Part, then the LED lamp panel uniformity is consistent, described pre- to being unsatisfactory for if being unsatisfactory for the preset sub-regions optical information condition
The optical information for putting the subregion of subregion optical information condition is corrected comparison.
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below：
A kind of bearing calibration based on the LED lamp panel uniformity provided in an embodiment of the present invention, step include：S1：Pass through sense
The optical information that device obtains LED lamp panel from presetting angle is surveyed, optical information includes light intensity, GTG and wavelength；S2：According to preset analysis
Mode is analyzed optical information, if meeting prerequisite, the LED lamp panel uniformity is consistent, right if being unsatisfactory for prerequisite
The optical information of LED lamp panel is corrected comparison.In the present embodiment, sensor obtains the optical information of LED lamp panel from presetting angle, and
Optical information is analyzed, so as to judge the whether consistent design of the uniformity of LED lamp panel, not only solving existing can only lead to
Cross to face and checked and have ignored the inclined feux rouges of the LED lamp panel overall region under big visual angle or the technological deficiency of non-homogeneous white light
The problem of, meanwhile, complete intelligentized checking step, further avoid former human eye range estimation bearing calibration and caused test
The technical problem of error.
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 that a kind of one embodiment of the bearing calibration based on the LED lamp panel uniformity provided in an embodiment of the present invention is shown
It is intended to；
Fig. 2 is a kind of another embodiment of the bearing calibration based on the LED lamp panel uniformity provided in an embodiment of the present invention
Schematic diagram；
Fig. 3 is a kind of another embodiment of the bearing calibration based on the LED lamp panel uniformity provided in an embodiment of the present invention
Schematic diagram；
Fig. 4 is a kind of another embodiment of the bearing calibration based on the LED lamp panel uniformity provided in an embodiment of the present invention
Schematic diagram；
Fig. 5 is a kind of another embodiment of the bearing calibration based on the LED lamp panel uniformity provided in an embodiment of the present invention
Schematic diagram；
Fig. 6 is a kind of another embodiment of the bearing calibration based on the LED lamp panel uniformity provided in an embodiment of the present invention
Schematic diagram；
Fig. 7 is a kind of another embodiment of the bearing calibration based on the LED lamp panel uniformity provided in an embodiment of the present invention
Schematic diagram；
Fig. 8 is a kind of another embodiment of the bearing calibration based on the LED lamp panel uniformity provided in an embodiment of the present invention
Schematic diagram；
Fig. 9 is an a kind of application examples knot of bearing calibration based on the LED lamp panel uniformity provided in an embodiment of the present invention
Composition.
Embodiment
The embodiments of the invention provide a kind of bearing calibration based on the LED lamp panel uniformity, just realize under big visual angle
LED lamp panel overall region multi-angle inspection, so as to solve the problems, such as the technological deficiency of inclined feux rouges or non-homogeneous white light.
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, implementation of bearing calibration based on the LED lamp panel uniformity provided in an embodiment of the present invention
Example includes：
S1：The optical information of LED lamp panel is obtained from presetting angle by sensor；
In the present embodiment, when needing to check the uniformity of the LED lamp panel of several LED compositions, it is necessary first to
Light in foregoing LED lamp panel, then obtain the optical information of the LED lamp panel after lighting from presetting angle by sensor, need
It is noted that foregoing optical information can include light intensity, GTG, wavelength, colour temperature and color gamut value etc., the technology of optical information is
Known technology, therefore just do not repeat here, it is necessary to explanation, foregoing presetting angle for example can be and LED lamp panel
The single or multiple angles such as positive 90 degree of (facing) angles of facade, 120 degree, 135 degree or 150 degree angles, are not limited specifically herein.
It is understood that foregoing sensor is available for the optical information for obtaining LED lamp panel, such as detection device
And/or brightness photometer and/or spectrometer etc., do not limit herein specifically.
S2：Optical information is analyzed according to preset analysis mode, if meeting prerequisite, the LED lamp panel uniformity one
Cause, if being unsatisfactory for prerequisite, perform step S3；
, it is necessary to believe according to preset analysis mode light after sensor obtains the optical information of LED lamp panel from presetting angle
Breath is analyzed, if meeting prerequisite, the LED lamp panel uniformity is consistent, if being unsatisfactory for prerequisite, performs step S3,
It is understood that the foregoing uniformity can be unanimously that the LED lamp panel entirety optical information uniformity is consistent, analysis can also be
Do not produce local feux rouges partially either non-homogeneous white light phenomenon etc. afterwards, do not limit herein specifically.
It should be noted that it is foregoing analysis process is carried out to optical information according to preset analysis mode will be in subsequent embodiment
In be described in detail, be just no longer described in detail herein.
S3, the optical information to LED lamp panel are corrected comparison.
In the present embodiment, preset bar is unsatisfactory for after being analyzed in step S2 the optical information of the LED lamp panel of acquisition
Part, it is necessary to be corrected comparison to the optical information of foregoing LED lamp panel, it is necessary to explanation, foregoing correction compares can be with
It is that the value of optical information is adjusted according to the analysis result than prerequisite, such as light intensity value exceeds prerequisite scope, then
Light intensity value in optical information etc. is reduced, is not limited herein specifically.
It should be noted that in embodiments of the present invention, it can further include：Root is needed before step S1 is performed
Corresponding image procossing is carried out according to background light, such as, it is necessary to further pass through under the stronger background light of outdoor light
Image processing techniques does removal processing to bias light, and the image processing techniques is known technology, is just repeated no more herein.Performing
Also need to do the malfunction elimination processing of LED drive chip before step S1, foregoing malfunction elimination technology is common knowledge, herein
Also repeat no more.
In the present embodiment, sensor obtains the optical information of LED lamp panel from presetting angle, and optical information is analyzed, from
And judge the whether consistent design of the uniformity of LED lamp panel, not only solve it is existing can only by face be checked neglect
Omited the LED lamp panel overall region under big visual angle inclined feux rouges or non-homogeneous white light technological deficiency the problem of, meanwhile, full intelligence
The checking step of change, it further avoid the technical problem of the bearing calibration that former human eye is estimated and caused test error.
The above is to carry out detailed retouch to the process of the bearing calibration based on the LED lamp panel uniformity in the embodiment of the present invention
State, the optical information for obtaining LED lamp panel will be described in detail below, in actual applications, obtain the optical information of LED lamp panel
Mode has a variety of, is described separately below.
First, relative motion bearing calibration；
A kind of referring to Fig. 2, another reality of bearing calibration based on the LED lamp panel uniformity provided in an embodiment of the present invention
Applying example includes：
201st, sensor and LED lamp panel carry out relative motion, and obtain from multiple angles the area in multiple regions of LED lamp panel
Domain optical information；
In the present embodiment, when needing to check the uniformity of the LED lamp panel of several LED compositions, it is necessary first to
Light in foregoing LED lamp panel, relative motion is then carried out by sensor and LED lamp panel, and LED is obtained from multiple angles
The region optical information in multiple regions of lamp plate, it is necessary to explanation, foregoing relative motion can be sensor using LED lamp panel as
Object of reference carries out relative motion, and e.g. sensor carries out big visual angle (± 180 ° of sections) motion by arc center of LED lamp panel,
Straight line parallel motion etc. either is carried out by object of reference of LED lamp panel, foregoing relative motion can also be LED lamp panel to sense
Device is that object of reference carries out relative motion, such as sensor is placed on same axis with LED lamp panel center, and LED lamp panel is with wherein
The heart is axle ± 180 ° rotation etc. vertically, and foregoing region possesses with angle and has corresponding relation, be can also be and distance
Possessing has corresponding relation, it is necessary to explanation, foregoing multiple angles obtain multiple regions of LED lamp panel, such as can be with
It is 90 degree (facing) corresponding region, 120 degree of corresponding regions, 135 degree of corresponding regions or 150 degree of corresponding areas
Domain etc., is not limited specifically herein.
It should be noted that foregoing region optical information can include light intensity, GTG, wavelength, colour temperature and color gamut value etc.,
The technology of optical information is known technology, therefore is not just repeated here.
It is understood that foregoing sensor is available for the optical information for obtaining LED lamp panel, such as detection device
And/or brightness photometer and/or spectrometer etc., do not limit herein specifically.
202nd, optical information is analyzed according to preset analysis mode, if meeting prerequisite, the LED lamp panel uniformity one
Cause, if being unsatisfactory for prerequisite, perform step 203；
When sensor and LED lamp panel carry out relative motion, and obtain from multiple angles the region in multiple regions of LED lamp panel
, it is necessary to be analyzed according to preset analysis mode region optical information after optical information, if meeting prerequisite, LED lamp panel
The uniformity is consistent, if being unsatisfactory for prerequisite, performs step 203, it is to be understood that the foregoing uniformity can be unanimously
The overall optical information uniformity of the multiple area light information integrations of LED lamp panel is consistent, and it is local inclined to can also be that analysis does not produce afterwards
Feux rouges either non-homogeneous white light phenomenon etc., is not limited specifically herein.
It should be noted that it is foregoing analysis process is carried out to optical information according to preset analysis mode will be in subsequent embodiment
In be described in detail, be just no longer described in detail herein.
203rd, comparison is corrected to the optical information of LED lamp panel.
In the present embodiment, preset bar is unsatisfactory for after being analyzed in step 202 optical information of the LED lamp panel of acquisition
Part, it is necessary to be corrected comparison to the region optical information of foregoing LED lamp panel, it is necessary to which explanation, foregoing correction compare
Can be that the value of region optical information is adjusted according to the analysis result than prerequisite, such as light intensity value exceeds prerequisite
Scope, then light intensity value in reduction optical information etc., is not limited specifically herein.
It should be noted that in embodiments of the present invention, it can further include：Needed before step 201 is performed
Corresponding image procossing is carried out according to background light, such as, it is necessary to further lead under the stronger background light of outdoor light
Cross image processing techniques and removal processing is done to bias light, the image processing techniques is known technology, is just repeated no more herein.Holding
Also needing to do the malfunction elimination processing of LED drive chip before row step 201, foregoing malfunction elimination technology is common knowledge,
Also repeat no more herein.
In the present embodiment, sensor carries out relative motion with LED lamp panel, and obtains the multiple of LED lamp panel from multiple angles
The region optical information in region, and region optical information is analyzed, so as to whether judge the uniformity in multiple regions of LED lamp panel
Consistent design, not only solve it is existing can only by face be checked have ignored the LED lamp panel under big visual angle entirety
The problem of technological deficiency of the inclined feux rouges in region or non-homogeneous white light, meanwhile, complete intelligentized checking step, it further avoid
In the past human eye range estimation bearing calibration and caused test error technical problem.
2nd, multiple sensor bearing calibrations；
A kind of referring to Fig. 3, another reality of bearing calibration based on the LED lamp panel uniformity provided in an embodiment of the present invention
Applying example includes：
301st, the area in multiple regions of LED lamp panel is obtained by being placed in multiple sensors of diverse location from multiple angles
Domain optical information；
In the present embodiment, when needing to check the uniformity of the LED lamp panel of several LED compositions, it is necessary first to
Light in foregoing LED lamp panel, then obtain LED lamp panel from multiple angles by being placed in multiple sensors of diverse location
Multiple regions region optical information, it is necessary to explanation, foregoing multiple sensors can be multiple sensors with LED lamp panel
For the storing of the multiple angles of object of reference, e.g. sensor carries out big visual angle (± 180 ° of sections) by arc center of LED lamp panel
Arc is put, or carries out straight line parallel storing etc. by object of reference of LED lamp panel, meanwhile, foregoing region possesses with angle
There is corresponding relation, can also be to possess with distance have corresponding relation, it is necessary to which explanation, foregoing multiple angles obtain
Take multiple regions of LED lamp panel, for example, can be 90 degree (facing) corresponding region, 120 degree of corresponding regions, 135 degree
Corresponding region or 150 degree of corresponding regions etc., are not limited specifically herein.
It should be noted that foregoing region optical information can include light intensity, GTG, wavelength, colour temperature and color gamut value etc.,
The technology of optical information is known technology, therefore is not just repeated here.
It is understood that foregoing sensor is available for the optical information for obtaining LED lamp panel, such as detection device
And/or brightness photometer and/or spectrometer etc., do not limit herein specifically.
302nd, optical information is analyzed according to preset analysis mode, if meeting prerequisite, the LED lamp panel uniformity one
Cause, if being unsatisfactory for prerequisite, perform step 303；
When sensor and LED lamp panel carry out relative motion, and obtain from multiple angles the region in multiple regions of LED lamp panel
, it is necessary to be analyzed according to preset analysis mode region optical information after optical information, if meeting prerequisite, LED lamp panel
The uniformity is consistent, if being unsatisfactory for prerequisite, performs step 303, it is to be understood that the foregoing uniformity can be unanimously
The overall optical information uniformity of the multiple area light information integrations of LED lamp panel is consistent, and it is local inclined to can also be that analysis does not produce afterwards
Feux rouges either non-homogeneous white light phenomenon etc., is not limited specifically herein.
It should be noted that it is foregoing analysis process is carried out to optical information according to preset analysis mode will be in subsequent embodiment
In be described in detail, be just no longer described in detail herein.
303rd, comparison is corrected to the optical information of LED lamp panel.
In the present embodiment, preset bar is unsatisfactory for after being analyzed in step 302 optical information of the LED lamp panel of acquisition
Part, it is necessary to be corrected comparison to the region optical information of foregoing LED lamp panel, it is necessary to which explanation, foregoing correction compare
Can be that the value of region optical information is adjusted according to the analysis result than prerequisite, such as light intensity value exceeds prerequisite
Scope, then light intensity value in reduction optical information etc., is not limited specifically herein.
It should be noted that in embodiments of the present invention, it can further include：Needed before step 301 is performed
Corresponding image procossing is carried out according to background light, such as, it is necessary to further lead under the stronger background light of outdoor light
Cross image processing techniques and removal processing is done to bias light, the image processing techniques is known technology, is just repeated no more herein.Holding
Also needing to do the malfunction elimination processing of LED drive chip before row step 301, foregoing malfunction elimination technology is common knowledge,
Also repeat no more herein.
In the present embodiment, the multiple of LED lamp panel are obtained from multiple angles by the multiple sensors for being placed in diverse location
The region optical information in region, and region optical information is analyzed, so as to whether judge the uniformity in multiple regions of LED lamp panel
Consistent design, not only solve it is existing can only by face be checked have ignored the LED lamp panel under big visual angle entirety
The problem of technological deficiency of the inclined feux rouges in region or non-homogeneous white light, meanwhile, complete intelligentized checking step, it further avoid
In the past human eye range estimation bearing calibration and caused test error technical problem.
3rd, filter processing optical information
An a kind of referring to Fig. 4, implementation of bearing calibration based on the LED lamp panel uniformity provided in an embodiment of the present invention
Example includes：
401st, the optical information of the LED lamp panel after optical filtering processing is obtained from presetting angle by sensor；
In the present embodiment, when needing that the uniformity of LED lamp panel of several LED compositions is checked, and LED lamp panel
When light intensity is too high, it is necessary first to light in foregoing LED lamp panel, filtering apparatus is placed between sensor and LED lamp panel,
Then the optical information of the LED lamp panel after optical filtering processing, the LED after acquisition optical filtering processing are obtained from multiple angles by sensor
The optical information of lamp plate can be that the such as sensor that step 201 refers to and LED lamp panel carry out relative motion, and be obtained from multiple angles
The region optical information in multiple regions of LED lamp panel is, it is necessary to explanation, while sensor carries out relative motion with LED lamp panel,
The motor pattern of filtering apparatus and sensor with it is consistent, can also be as step 301 refer to by being placed in diverse location
Multiple sensors obtain the region optical information in multiple regions of LED lamp panel from multiple angles, it is to be appreciated that filtering apparatus
To be multiple, its quantity is corresponding with sensor quantity, is placed in front of sensor, it is necessary to explanation, foregoing multiple angles
Degree obtain LED lamp panel multiple regions, such as can be 90 degree (facing) corresponding region, 120 degree of corresponding regions,
135 degree of corresponding regions or 150 degree of corresponding regions etc., are not limited specifically herein.
It should be noted that foregoing region optical information can include light intensity, GTG, wavelength, colour temperature and color gamut value etc.,
The technology of optical information is known technology, therefore is not just repeated here.
It is understood that foregoing sensor is available for the optical information for obtaining LED lamp panel, such as detection device
And/or brightness photometer and/or spectrometer etc., do not limit herein specifically.
402nd, optical information is analyzed according to preset analysis mode, if meeting prerequisite, the LED lamp panel uniformity one
Cause, if being unsatisfactory for prerequisite, perform step 403；
, it is necessary to according to pre- after the optical information of LED lamp panel after optical filtering processing is obtained from multiple angles by sensor
Put analysis mode to analyze optical information, if meeting prerequisite, the LED lamp panel uniformity is consistent, if being unsatisfactory for preset bar
Part, then perform step 403, it is to be understood that the foregoing uniformity can be unanimously the multiple area light information integrations of LED lamp panel
The overall optical information uniformity it is consistent, can also be and not produce local feux rouges partially either non-homogeneous white light phenomenon after analysis
Deng not limiting specifically herein.
It should be noted that it is foregoing analysis process is carried out to optical information according to preset analysis mode will be in subsequent embodiment
In be described in detail, be just no longer described in detail herein.
403rd, comparison is corrected to the optical information of LED lamp panel.
In the present embodiment, preset bar is unsatisfactory for after being analyzed in step 402 optical information of the LED lamp panel of acquisition
Part, it is necessary to be corrected comparison to the region optical information of foregoing LED lamp panel, it is necessary to which explanation, foregoing correction compare
Can be that the value of region optical information is adjusted according to the analysis result than prerequisite, such as light intensity value exceeds prerequisite
Scope, then light intensity value in reduction optical information etc., is not limited specifically herein.
It should be noted that in embodiments of the present invention, it can further include：Needed before step 401 is performed
Corresponding image procossing is carried out according to background light, such as, it is necessary to further lead under the stronger background light of outdoor light
Cross image processing techniques and removal processing is done to bias light, the image processing techniques is known technology, is just repeated no more herein.Holding
Also needing to do the malfunction elimination processing of LED drive chip before row step 401, foregoing malfunction elimination technology is common knowledge,
Also repeat no more herein.
In the present embodiment, sensor carries out relative motion with LED lamp panel, and obtains the multiple of LED lamp panel from multiple angles
The region optical information in region, and region optical information is analyzed, so as to whether judge the uniformity in multiple regions of LED lamp panel
Consistent design, not only solve it is existing can only by face be checked have ignored the LED lamp panel under big visual angle entirety
The problem of technological deficiency of the inclined feux rouges in region or non-homogeneous white light, meanwhile, complete intelligentized checking step, it further avoid
In the past human eye range estimation bearing calibration and caused test error technical problem.
The above is that the optical information for obtaining LED lamp panel is described in detail, below will be to according to preset analysis mode pair
The process that optical information is analyzed is described in detail, in actual applications, the analysis process and mode of optical information have it is a variety of,
It will be described one by one below：
First, whether analysis optical information meets preset threshold value；
A kind of referring to Fig. 5, another reality of bearing calibration based on the LED lamp panel uniformity provided in an embodiment of the present invention
Applying example includes：
501st, the optical information of LED lamp panel is obtained from presetting angle by sensor；
In the present embodiment, when needing to check the uniformity of the LED lamp panel of several LED compositions, it is necessary first to
Light in foregoing LED lamp panel, then obtain the optical information of the LED lamp panel after lighting from presetting angle by sensor, need
It is noted that foregoing optical information can include light intensity, GTG, wavelength, colour temperature and color gamut value etc., the technology of optical information is
Known technology, therefore just do not repeat here, it is necessary to explanation, foregoing multiple angles for example can be and LED lamp panel
The single or multiple angles such as positive 90 degree of (facing) angles of facade, 120 degree, 135 degree or 150 degree angles, are not limited specifically herein.
It is understood that foregoing sensor is available for the optical information for obtaining LED lamp panel, such as detection device
And/or brightness photometer and/or spectrometer etc., do not limit herein specifically.
502nd, the optical information of multiple angles to getting is handled according to preset proportion value；
After sensor obtains the optical information of LED lamp panel from presetting angle, the LED lamp panel that is got based on different angle
The difference of the region area of the optical information in upper corresponding region, it is necessary to the optical information of multiple presetting angles that gets according to
Preset proportion value is handled, it is necessary to illustrate, preset proportion is associated with angle, such as the angle got when sensor
The angle that optical information and sensor for 120 ° of region are got is that the optical information in 90 ° of (facing) regions is certain ratio
Value, the ratio value are corresponding with the ratio of 120 ° of region area and 90 ° of (facing) region areas.
It is understood that foregoing carry out processing as known Scaling technique according to preset proportion value, it is just no longer superfluous herein
State.
503rd, whether analysis optical information meets preset threshold value, if so, then the LED lamp panel uniformity is consistent, if it is not, then performing step
Rapid 504；
, it is necessary to analyze light after the optical information of multiple presetting angles to getting is handled according to preset proportion value
Whether information meets preset threshold value, and the preset threshold value can be a value range, such as light intensity value regulating scope, or GTG
It is worth regulating scope, or wavelength regulating scope etc., does not limit herein specifically, if meeting preset threshold value, LED lamp panel is uniform
Degree is consistent, if being unsatisfactory for preset threshold value, performs step 504, it is to be understood that the foregoing uniformity can be unanimously LED
The lamp plate entirety optical information uniformity is consistent, can also be that analysis does not produce local feux rouges partially either non-homogeneous white light phenomenon afterwards
Deng not limiting specifically herein.
It should be noted that foregoing preset threshold value, which can be those skilled in the art, passes through the experience that long term test obtains
Value, can also be the sample value of industry standard standard.
504th, comparison is corrected to the optical information of LED lamp panel.
In the present embodiment, preset bar is unsatisfactory for after being analyzed in step 503 optical information of the LED lamp panel of acquisition
Part, it is necessary to be corrected comparison to the optical information of foregoing LED lamp panel, it is necessary to explanation, foregoing correction compares can be with
It is that the value of optical information is adjusted according to the analysis result than prerequisite, such as light intensity value exceeds prerequisite scope, then
Light intensity value in optical information etc. is reduced, is not limited herein specifically.
It should be noted that in embodiments of the present invention, it can further include：Needed before step 501 is performed
Corresponding image procossing is carried out according to background light, such as, it is necessary to further lead under the stronger background light of outdoor light
Cross image processing techniques and removal processing is done to bias light, the image processing techniques is known technology, is just repeated no more herein.Holding
Also needing to do the malfunction elimination processing of LED drive chip before row step 501, foregoing malfunction elimination technology is common knowledge,
Also repeat no more herein.
In the present embodiment, sensor from presetting angle obtain LED lamp panel optical information, and analyze optical information whether meet it is pre-
Put threshold value, so as to judge the whether consistent design of the uniformity of LED lamp panel, not only solve it is existing can only by face carry out
Check and have ignored the LED lamp panel overall region under big visual angle inclined feux rouges or non-homogeneous white light technological deficiency the problem of, together
When, complete intelligentized checking step, it further avoid the skill of the bearing calibration that former human eye is estimated and caused test error
Art problem, and multiple presetting angles to getting optical information in the way of preset proportion value is handled, and then make
The accuracy for obtaining inspection result is higher.
2nd, the Pixel Information corresponding with optical information is counted according to optical information；
A kind of referring to Fig. 6, another reality of bearing calibration based on the LED lamp panel uniformity provided in an embodiment of the present invention
Applying example includes：
601st, the optical information of LED lamp panel is obtained from presetting angle by sensor；
In the present embodiment, when needing to check the uniformity of the LED lamp panel of several LED compositions, it is necessary first to
Light in foregoing LED lamp panel, then obtain the optical information of the LED lamp panel after lighting from presetting angle by sensor, need
It is noted that foregoing optical information can include light intensity, GTG, wavelength, colour temperature and color gamut value, the technology of optical information is public affairs
Know technology, therefore just do not repeat here, it is necessary to explanation, foregoing presetting angle for example can be with LED lamp panel just
The single or multiple angles such as 90 degree of (facing) angles of facade, 120 degree, 135 degree or 150 degree angles, are not limited specifically herein.
It is understood that foregoing sensor is available for the optical information for obtaining LED lamp panel, such as detection device
And/or brightness photometer and/or spectrometer etc., do not limit herein specifically.
602nd, the optical information of multiple angles to getting is handled according to preset proportion value；
After sensor obtains the optical information of LED lamp panel from presetting angle, the LED that is got based on different presetting angles
The difference of the region area of the optical information in corresponding region is, it is necessary to the optical information of the multiple presetting angles got on lamp plate
Being handled according to preset proportion value, it is necessary to illustrate, preset proportion is associated with angle, such as got when sensor
Angle is that the optical information that the angle that the optical information in 120 ° of region and sensor are got is 90 ° of (facing) regions is certain ratio
Example value, the ratio value are corresponding with the ratio of 120 ° of region area and 90 ° of (facing) region areas.
It is understood that foregoing carry out processing as known Scaling technique according to preset proportion value, it is just no longer superfluous herein
State.
603rd, the Pixel Information corresponding with optical information is counted according to optical information；
After the optical information of the presetting angle to getting is handled according to preset proportion value, it is necessary to according to getting
Optical information count the Pixel Information corresponding with optical information, it is necessary to illustrate, foregoing Pixel Information can be different angles
The region averages of multiple region optical informations of degree either mean square deviation etc., can also be multiple area lights of different presetting angles
The statistics of the optical information of the overlap-add region of information, such as sensor are heavy in 110 ° of region B in 90 ° of (facing) region A and sensor
Close region C statistics of optical information etc.；
604th, judge whether Pixel Information meets preset statistical condition, if so, then the LED lamp panel uniformity is consistent, if it is not, then
Perform step 605；
, it is necessary to which judging the Pixel Information of statistics is after the Pixel Information corresponding with optical information is counted according to optical information
No to meet preset statistical condition, the preset statistical condition can be a value range, such as the average value that refers to of step 603 or
The regulating scope of variance, or the specification model of the optical information contrast error amount of the different angle overlap-add region that refers to of step 603
Enclose, do not limit herein specifically, if meeting preset statistical condition, the LED lamp panel uniformity is consistent, if being unsatisfactory for preset statistics
Condition, then perform step 605, it is to be understood that the foregoing uniformity can be unanimously the LED lamp panel entirety optical information uniformity
Unanimously, it can also be that analysis does not produce local feux rouges partially either non-homogeneous white light phenomenon etc. afterwards, do not limit herein specifically.
Obtained it should be noted that foregoing preset statistical condition can be those skilled in the art by long term test
Experience conclusion, it can also be the sample value of industry standard standard.
605th, comparison is corrected to the optical information of LED lamp panel.
In the present embodiment, preset bar is unsatisfactory for after being analyzed in step 604 optical information of the LED lamp panel of acquisition
Part, it is necessary to be corrected comparison to the optical information of foregoing LED lamp panel, it is necessary to explanation, foregoing correction compares can be with
It is that the value of optical information is adjusted according to the analysis result than prerequisite, such as light intensity value exceeds prerequisite scope, then
Light intensity value in optical information etc. is reduced, is not limited herein specifically.
It should be noted that in embodiments of the present invention, it can further include：Needed before step 601 is performed
Corresponding image procossing is carried out according to background light, such as, it is necessary to further lead under the stronger background light of outdoor light
Cross image processing techniques and removal processing is done to bias light, the image processing techniques is known technology, is just repeated no more herein.Holding
Also needing to do the malfunction elimination processing of LED drive chip before row step 601, foregoing malfunction elimination technology is common knowledge,
Also repeat no more herein.
In the present embodiment, sensor obtains the optical information of LED lamp panel from presetting angle, according to optical information statistics and optical information
Corresponding Pixel Information, then judge whether Pixel Information meets preset statistical condition, so that it is determined that the uniformity of LED lamp panel is
No consistent design, not only solve it is existing can only by face checked it is whole have ignored the LED lamp panel under big visual angle
The problem of technological deficiency of the inclined feux rouges of body region or non-homogeneous white light, meanwhile, complete intelligentized checking step, further avoid
The bearing calibration of former human eye range estimation and the technical problem of caused test error, and the light of multiple angles to getting
Information make it that the accuracy of inspection result is higher in the way of preset proportion value is handled.
3rd, red optical information or green optical information or blue optical information are subjected to preset comparison pattern；
A kind of referring to Fig. 7, another reality of bearing calibration based on the LED lamp panel uniformity provided in an embodiment of the present invention
Applying example includes：
701st, the optical information of LED lamp panel is obtained from presetting angle by sensor；
In the present embodiment, when needing to check the uniformity of the LED lamp panel of several LED compositions, it is necessary first to
Light in foregoing LED lamp panel, then obtain the optical information of the LED lamp panel after lighting from presetting angle by sensor, need
It is noted that foregoing optical information can include light intensity, GTG, wavelength, colour temperature and color gamut value, the technology of optical information is public affairs
Know technology, therefore just do not repeat here, it is necessary to explanation, foregoing presetting angle for example can be with LED lamp panel just
90 degree of (facing) angles of facade, 120 degree, 135 degree or 150 degree angles etc., are not limited specifically herein.
It is understood that foregoing sensor is available for the optical information for obtaining LED lamp panel, such as detection device
And/or brightness photometer and/or spectrometer etc., do not limit herein specifically.
702nd, the optical information of multiple angles to getting is handled according to preset proportion value；
After sensor obtains the optical information of LED lamp panel from presetting angle, got based on different presetting angles
The difference of the region area of the optical information in corresponding region is, it is necessary to the light of the multiple presetting angles got in LED lamp panel
Information is handled according to preset proportion value, it is necessary to illustrate, preset proportion is associated with angle, such as when sensor obtains
To angle be 120 ° the angle that gets of optical information and sensor in region be that the optical information in 90 ° of (facing) regions is certain
Ratio value, the ratio value is corresponding with the ratio of 120 ° of region area and 90 ° of (facing) region areas.
It is understood that foregoing carry out processing as known Scaling technique according to preset proportion value, it is just no longer superfluous herein
State.
703rd, red optical information or green optical information or blue optical information are subjected to preset comparison pattern, if meeting preset ratio
To the condition of pattern, then the LED lamp panel uniformity is consistent, if being unsatisfactory for the condition of preset comparison pattern, performs step 704；
, it is necessary to which red light is believed after the optical information of the presetting angle to getting is handled according to preset proportion value
Breath or green optical information or blue optical information carry out preset comparison pattern, it is necessary to explanation, foregoing red optical information or green
Coloured light information or blue optical information are to send control instruction by the control module of LED lamp panel to be operated to driving chip, example
As the red optical information of control module transmission or the control instruction of green optical information or blue optical information cause a certain area of LED lamp panel
Domain sends red light or green light or blue light and obtains red optical information or green optical information or blue optical information to sensor, must
Pattern or optional region comparison pattern, foregoing optional region are compared it should be noted that foregoing preset comparison pattern is sample
Comparison pattern is that multiple regions are contrasted in LED lamp panel, such as the one's respective area red got is removed in multiple regions in LED lamp panel
The corresponding red optical information or green optical information or indigo plant in other regions of optical information or green optical information or blue optical information
Coloured light information is contrasted, and the condition that foregoing sample compares the preset comparison pattern of pattern or optional region comparison pattern is carried out
Contrast, can be that the preset threshold value referred to according to step 503 is compared, can also be the statistics picture referred to according to step 604
Prime information is compared, and does not limit herein specifically, if meeting the condition of preset comparison pattern, the LED lamp panel uniformity is consistent,
If being unsatisfactory for the condition of preset comparison pattern, step 704 is performed, it is to be understood that the foregoing uniformity can be unanimously
The LED lamp panel entirety optical information uniformity is consistent, can also be that analysis does not produce local feux rouges partially either non-homogeneous white light afterwards
Phenomenon etc., is not limited specifically herein.
It should be noted that the one's respective area red optical information got or green are removed in multiple regions in foregoing LED lamp panel
The corresponding red optical information in other regions of optical information or blue optical information or green optical information or blue optical information are carried out
Can be the corresponding red optical information or green optical information or blue optical information for calling the other regions stored during contrast.
704th, comparison is corrected to the optical information of LED lamp panel.
In the present embodiment, preset ratio is unsatisfactory for after being analyzed in step 703 optical information of the LED lamp panel of acquisition
To condition, it is necessary to be corrected comparison to the optical information of foregoing LED lamp panel, it is necessary to which explanation, foregoing correction compare
Can be that the value of optical information is adjusted according to the analysis result than prerequisite, such as light intensity value exceeds prerequisite model
Enclose, then light intensity value in reduction optical information etc., is not limited specifically herein.
It should be noted that in embodiments of the present invention, it can further include：Needed before step 701 is performed
Corresponding image procossing is carried out according to background light, such as, it is necessary to further lead under the stronger background light of outdoor light
Cross image processing techniques and removal processing is done to bias light, the image processing techniques is known technology, is just repeated no more herein.Holding
Also needing to do the malfunction elimination processing of LED drive chip before row step 701, foregoing malfunction elimination technology is common knowledge,
Also repeat no more herein.
In the present embodiment, sensor obtains the red optical information or green optical information or blueness of LED lamp panel from multiple angles
Optical information simultaneously carries out preset comparison pattern, and analyses whether the condition for meeting preset comparison pattern, so as to judge the equal of LED lamp panel
The whether consistent design of evenness, not only solve existing can only be checked have ignored the LED under big visual angle by facing
The problem of technological deficiency of the inclined feux rouges of lamp plate overall region or non-homogeneous white light, meanwhile, complete intelligentized checking step, enter one
Step avoids the technical problem of the bearing calibration of former human eye range estimation and caused test error, and multiple angles to getting
The optical information of degree make it that the accuracy of inspection result is higher in the way of preset proportion value is handled.
4th, subregion compares pattern；
A kind of referring to Fig. 8, another reality of bearing calibration based on the LED lamp panel uniformity provided in an embodiment of the present invention
Applying example includes：
801st, the optical information of LED lamp panel is obtained from presetting angle by sensor；
In the present embodiment, when needing to check the uniformity of the LED lamp panel of several LED compositions, it is necessary first to
Light in foregoing LED lamp panel, then obtain the optical information of the LED lamp panel after lighting from presetting angle by sensor, need
It is noted that foregoing optical information can include light intensity, GTG, wavelength, colour temperature and color gamut value, the technology of optical information is public affairs
Know technology, therefore just do not repeat here, it is necessary to explanation, foregoing presetting angle for example can be with LED lamp panel just
The single or multiple angles such as 90 degree of (facing) angles of facade, 120 degree, 135 degree or 150 degree angles, are not limited specifically herein.
It is understood that foregoing sensor is available for the optical information for obtaining LED lamp panel, such as detection device
And/or brightness photometer and/or spectrometer etc., do not limit herein specifically.
802nd, sub-zone dividing is carried out to the optical information of the LED lamp panel under presetting angle；
, it is necessary to the LED lamp panel under presetting angle after sensor obtains the optical information of LED lamp panel from presetting angle
Optical information carries out sub-zone dividing, such as sensor is placed in the optical information got and sensing of 90 ° of the positive facade of LED lamp panel
Device be placed in positive 90 ° of facade can capture region it is corresponding, it is necessary to by 90 ° of more sub-regions of corresponding region division, such as
Positive 90 ° of facade can capture region be multiple LED modules in LED lamp panel, LED module can be set as sub-regions etc..
803rd, pattern is compared according to subregion and subregion comparison is carried out to optical information, if meeting preset sub-regions optical information bar
Part, then the LED lamp panel uniformity is consistent, if being unsatisfactory for preset sub-regions optical information condition, performs step 804；
After the optical information to the LED lamp panel under presetting angle carries out sub-zone dividing, pattern is compared according to subregion
Subregion comparison is carried out to optical information, if meeting preset sub-regions optical information condition, the LED lamp panel uniformity is consistent, if discontented
Sufficient preset sub-regions optical information condition, then perform step 804.
It should be noted that foregoing subregion compares pattern, can be one optical information of selection from more sub-regions
Standard subregion of the standard compliant subregion as comparison correction, other subregions are compared with the standard subregion,
The luminous intensity of the LED of example standard subregion as the aforementioned intensity signal is 3, by the LED of other subregions intensity signal
Whether it is consistent luminous intensity that luminous intensity compares therewith, is not limited specifically herein.
804th, the optical information of the subregion to being unsatisfactory for preset sub-regions optical information condition is corrected comparison；
After pattern is compared to optical information progress subregion comparison according to subregion, to being unsatisfactory for preset sub-regions light letter
The optical information of the subregion of breath condition is corrected comparison, it is to be understood that it can be carried according to step 803 that the correction, which compares,
And the optical information according to standard compliant standard subregion be corrected, example meets preset sub-regions optical information bar as the aforementioned
The luminous intensity of the LED of part standard subregion intensity signal is 3, by the luminous intensity school of the LED of other subregions intensity signal
Just to luminous intensity consistent therewith, do not limit specifically herein.
It should be noted that in embodiments of the present invention, it can further include：Needed before step 801 is performed
Corresponding image procossing is carried out according to background light, such as, it is necessary to further lead under the stronger background light of outdoor light
Cross image processing techniques and removal processing is done to bias light, the image processing techniques is known technology, is just repeated no more herein.Holding
Also needing to do the malfunction elimination processing of LED drive chip before row step 801, foregoing malfunction elimination technology is common knowledge,
Also repeat no more herein.
In the present embodiment, sensor obtains the optical information of LED lamp panel from presetting angle and carries out sub-zone dividing, according to son
Region compares pattern and carries out whether subregion comparison meets preset sub-regions optical information condition to optical information, so that it is determined that LED
The whether consistent design of the uniformity of plate, not only solve existing can only be checked have ignored under big visual angle by facing
LED lamp panel overall region inclined feux rouges or non-homogeneous white light technological deficiency the problem of, meanwhile, it is complete intelligentized to check step
Suddenly, the technical problem of the bearing calibration of former human eye range estimation and caused test error is further avoid, and to getting
Multiple angles optical information in the way of preset proportion value is handled, and then cause inspection result accuracy it is higher.
The above is to compare pattern to subregion to be described in detail, and for ease of understanding, specifically should with reference to Fig. 9 with one
The embodiment shown in Fig. 8 is described in detail with scene, one kind provided in an embodiment of the present invention is based on the LED lamp panel uniformity
An application examples of bearing calibration include：
As shown in figure 9, sensor to be placed in the position of LED lamp panel center face 90 ° (facing), the position can be tool
There is a certain distance, the LED lamp panel can include multiple LED modules, and sensor is got and LED lamp panel center face
90 ° (facing) can capture region optical information, as shown in figure 9, sensor get 4 LED modules of LED lamp panel light letter
Breath, 4 LED modules are respectively that upper left, lower-left, upper right, bottom right are the subregion that refers to of step 802, upper left, the left side of acquisition
Under, upper right, bottom right subregion optical information light intensity value such as Fig. 9 (a) shown in, the light intensity value of wherein upper left subregion is 3,
Such as Fig. 9 (b), in this, as the standard compliant standard subregion of optical information, to lower-left, upper right, the sub-regions of bottom right 3 and upper left
Subregion is compared, then lower-left, upper right, the sub-regions of bottom right 3 are unsatisfactory for the subregion optical information condition that light intensity is 3, because
This, is corrected to all LED light intensity of lower-left, upper right, the sub-regions of bottom right 3, makes all LED's of 3 sub-regions
Light intensity is 3, such as Fig. 9 (c).
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
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 (1)
- A kind of 1. bearing calibration based on the LED lamp panel uniformity, it is characterised in that including：S1：The optical information of LED lamp panel is obtained from presetting angle by sensor, the optical information includes light intensity, GTG, ripple Long, colour temperature and color gamut value；S2：The optical information is analyzed according to preset analysis mode, if meeting prerequisite, the LED lamp panel is uniform Degree is consistent, if being unsatisfactory for prerequisite, comparison is corrected to the optical information of the LED lamp panel；The optical information for obtaining LED lamp panel from presetting angle by sensor specifically includes：The sensor and the LED lamp panel carry out relative motion, and obtain from multiple angles the area in multiple regions of LED lamp panel Domain optical information, wherein, the region possesses with the angle and has corresponding relation, and the relative motion is sensor with described LED lamp panel is that object of reference carries out straight line parallel motion；OrThe optical information of the LED lamp panel after optical filtering processing is obtained from the presetting angle by sensor；Step S2 is specifically included：Red optical information or green optical information or blue optical information are subjected to preset comparison pattern, if meeting preset comparison pattern Condition, then the LED lamp panel uniformity is consistent, if the condition of preset comparison pattern is unsatisfactory for, to described in the LED lamp panel Optical information is corrected comparison；The preset comparison pattern is that sample compares pattern or optional region compares pattern；It is that multiple regions are contrasted in the LED lamp panel that the optionally region, which compares pattern,；Also include after step S1：The optical information of multiple angles to getting is handled according to preset proportion value, the preset proportion and angle phase Association.
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| CN109238459A (en) * | 2018-11-13 | 2019-01-18 | 惠州西电仲恺人工智能联合创新实验室有限公司 | The online vision detection system of LED luminance |
| CN111839180B (en) * | 2020-07-07 | 2021-12-24 | 山东中科伺易智能技术有限公司 | Intelligent wheel-by-wheel operation opportunity identification platform |
| CN115753015B (en) * | 2022-11-08 | 2023-08-22 | 广东艾斯谱光电科技有限公司 | MINI LED Luminescence Detection Method and System |
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| US7274346B2 (en) * | 2004-06-01 | 2007-09-25 | Eastman Kodak Company | Uniformity and brightness measurement in OLED displays |
| CN201247098Y (en) * | 2008-09-03 | 2009-05-27 | 长春希达电子技术有限公司 | Test system for LED display screen pixel array light intensity distribution |
| CN101697271A (en) * | 2009-10-27 | 2010-04-21 | 彩虹集团公司 | Direct-type LED backlight color uniformity correction system and direct-type LED backlight color uniformity correction method |
| CN102231251B (en) * | 2011-06-21 | 2013-08-21 | 华南理工大学 | Camera photo-based method for point-by-point inhomogeneous analysis and correction of LED (Light Emitting Diode) |
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| CN103413526B (en) * | 2013-08-19 | 2015-08-05 | 西安诺瓦电子科技有限公司 | The correction method for LED lamp panel of LED display |
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