CN106423915B - A kind of method of testing, sorting color separation - Google Patents
A kind of method of testing, sorting color separation Download PDFInfo
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- CN106423915B CN106423915B CN201610890526.0A CN201610890526A CN106423915B CN 106423915 B CN106423915 B CN 106423915B CN 201610890526 A CN201610890526 A CN 201610890526A CN 106423915 B CN106423915 B CN 106423915B
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- chromatic diagram
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
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Abstract
The present invention provides a kind of method of testing, sorting color separation, includes the following steps：(1) on the basis of CIE1976 chromatic diagram, parallel color lump is evenly dividing as original testing, sorting figure by (u', v') coordinate on this chromatic diagram；(2) transformation equation II is released by canonical transformation equation I is counter, chromaticity coordinates (u', v') is converted into (x, y) chromaticity coordinates further according to transformation equation II, obtains the testing, sorting figure on CIE1931 chromatic diagram benchmark.Sorting diagram shape at this time is non-uniform, but its practical color referred to is uniformly, and color difference degree representated by fixed range is consistent at chromatic diagram different location.(3) chromaticity coordinates (x, y) that LED backlight lamp bead is measured by screening installation, meets the needs of people are to historical custom, testing, sorting can continue to use usual mode operation.The vertical and horizontal color change of the present invention is consistent linear, this ensures that guaranteeing that color lump changes the consistency of corresponding coloration variation when choosing the color lump of backlight white light source, avoiding generating meaningless puzzlement.
Description
Technical field
The present invention relates to LED testing, sorting technical field, specially a kind of method of testing, sorting color separation.
Background technique
In early stage, since LED is mainly applied instruction or display lamp use, and generally occur with individual devices, so right
It is required in the control of sorting and the brightness of its wavelength not high.But with the continuous improvement of the efficiency of LED and brightness, application
Range is more and more wider.When LED is shown as array with screen elements, since human eye is for the sensitivity of color wavelength and brightness
Property, non-uniform phenomenon is just produced with the LED not sorted, just influences the visual effect of people.Whether wavelength
It is uneven or brightness unevenly all people to be given to generate uncomfortable feeling.This is that each light-emitting diode display manufacturing firm is reluctant
See and people are unacceptable.The sorting of LED can not be all by optics, electrology characteristic and service life and reliability etc.
Parameter is all done, but carries out category sorting according to usually everybody several key parameters of concern.
It is all using CIE1931 (x, y) chromatic diagram as base when the backlight product of LED Packaging Industry makees testing, sorting at present
Plinth is evenly dividing in corresponding white light field progress oblique parallel and carrys out color separation, is several typical testing, sortings as shown in Fig. 3,4,5
Figure, it is seen that its shape is all uniform.
Because CIE1931 (x, y) chromatic diagram is heteropical, i.e. chromatic diagram difference position for human eye to the characterization of color
It is inconsistent to set color difference degree representated by place's fixed range, so strictly, representated by region division different color blocks as above
Color its difference be all it is inconsistent, thus make troubles to backlight module the selection of backlight white light source.Using such as
When upper sorting is schemed, when the white light of backlight is in the mobile color lump of different location, for human eye, photochromic variation is different
Cause, sometimes will dialogue optical parameter selection generate puzzlement.
Summary of the invention
Technical problem solved by the invention is to provide a kind of method of testing, sorting color separation, to solve above-mentioned background skill
The problems in art.
Technical problem solved by the invention is realized using following technical scheme：A kind of method of testing, sorting color separation,
Include the following steps：
(1) on the basis of CIE1976 chromatic diagram, parallel color lump is evenly dividing by (u', v') coordinate on this chromatic diagram and is made
For original testing, sorting figure；Sorting diagram shape at this time is uniformity, and the practical color referred to is also uniform, i.e. coloration
Color difference degree representated by fixed range is consistent at figure different location；
(2) transformation equation II is released by canonical transformation equation I is counter, turns chromaticity coordinates (u', v') further according to transformation equation II
It is changed to (x, y) chromaticity coordinates, obtains the testing, sorting figure on CIE1931 chromatic diagram benchmark.Sorting diagram shape at this time is uneven
Even, but its practical color referred to is uniform, the guarantor of color difference degree representated by fixed range at chromatic diagram different location
It holds consistent.
(3) chromaticity coordinates (x, y) that LED backlight lamp bead is measured by screening installation, meets people to historical custom
Demand, testing, sorting can continue to use usual mode operation.
The transformation equation I is
The transformation equation II is
It is compared to open technology, there are following advantages by the present invention：The vertical and horizontal color change of the present invention is consistent linear
, this ensures that guaranteeing that color lump changes the consistency of corresponding coloration variation when choosing the color lump of backlight white light source, avoiding
Generate meaningless puzzlement.
Detailed description of the invention
Fig. 1 is that the embodiment of the present invention 1 at chromaticity coordinates (x, y) completely scheme by sorting.
Fig. 2 is that the embodiment of the present invention 1 at chromaticity coordinates (u', v') completely scheme by sorting.
Fig. 3 is that CIE1931 (x, y) sorts segment two in parallel to not parallel with reference axis.
Fig. 4 is that CIE1931 (x, y) sorting segment longitudinal edge is parallel with reference axis.
Fig. 5 is that CIE1931 (x, y) sorting segment widthwise edge is parallel with reference axis.
Specific embodiment
In order to make, technological means of the invention, creation characteristic, workflow, application method reach purpose and effect is easy to bright
White understanding, below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
A kind of method of testing, sorting color separation, includes the following steps：
(1) on the basis of CIE1976 chromatic diagram, parallel color lump is evenly dividing by (u', v') coordinate on this chromatic diagram and is made
For original testing, sorting figure；Sorting diagram shape at this time is uniformity, and the practical color referred to is also uniform, i.e. coloration
Color difference degree representated by fixed range is consistent at figure different location；
(2) transformation equation II is released by canonical transformation equation I is counter, turns chromaticity coordinates (u', v') further according to transformation equation II
It is changed to (x, y) chromaticity coordinates, obtains the testing, sorting figure on CIE1931 chromatic diagram benchmark.Sorting diagram shape at this time is uneven
Even, but its practical color referred to is uniform, the guarantor of color difference degree representated by fixed range at chromatic diagram different location
It holds consistent.
(3) chromaticity coordinates (x, y) that LED backlight lamp bead is measured by screening installation, meets people to historical custom
Demand, testing, sorting can continue to use usual mode operation.
Embodiment 1
(1) can reach human eye substantially on the basis of CIE1976 chromatic diagram, within chromaticity coordinates 0.007 can not be identified color difference
Degree, so vertically and horizontally (u', v') coordinate is divided equally by 0.007 stepping, corresponding sorting color lump coordinate points such as following table：
Note：By the above process, four column color lumps are divided and by following (complete point of respective figure 1 and Fig. 2 of following position name
Choosing figure)：
| C0 | A0 | B0 | D0 |
| C1 | A1 | B1 | D1 |
| C2 | A2 | B2 | D2 |
| C3 | A3 | B3 | D3 |
| C4 | A4 | B4 | D4 |
| C5 | A5 | B5 | D5 |
| C6 | A6 | B6 | D6 |
| C7 | A7 | B7 | D7 |
| C8 | A8 | B8 | D8 |
| C9 | A9 | B9 | D9 |
(2) chromaticity coordinates (u', v') is converted to by (x, y) according to transformation equation II, obtains the coloration sorting at CIE1931
Figure, such as following table.Color lump on the figure of coloration sorting at this time be it is heterogeneous, but color representated by different color blocks be it is uniform,
Difference is also consistent；
(3) chromaticity coordinates (x, y) that LED backlight lamp bead is measured by screening installation, meets people to historical custom
Demand, testing, sorting can continue to use usual mode operation.
The above shows and describes the basic principle, main features and advantages of the invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.Claimed range of the invention by appended claims and
Its equivalent thereof.
Claims (1)
1. a kind of method of testing, sorting color separation, it is characterised in that：Include the following steps：
(1) on the basis of CIE1976 chromatic diagram, parallel color lump is evenly dividing as former by (u', v') coordinate on this chromatic diagram
Beginning testing, sorting figure；Sorting diagram shape at this time is uniformity, the practical color referred to be also it is uniform, i.e., chromatic diagram is not
It is consistent with color difference degree representated by fixed range at position；
(2) transformation equation II is released by canonical transformation equation I is counter, is converted to chromaticity coordinates (u', v') further according to transformation equation II
(x, y) chromaticity coordinates obtains the testing, sorting figure on CIE1931 chromatic diagram benchmark；Sorting diagram shape at this time be it is non-uniform,
But its practical color referred to is uniform, the holding of color difference degree representated by fixed range one at chromatic diagram different location
It causes；
(3) chromaticity coordinates (x, y) that LED backlight lamp bead is measured by screening installation, meets the needs of people are to historical custom,
Testing, sorting can continue to use usual mode operation；
The transformation equation I is
The transformation equation II is
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610890526.0A CN106423915B (en) | 2016-10-12 | 2016-10-12 | A kind of method of testing, sorting color separation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610890526.0A CN106423915B (en) | 2016-10-12 | 2016-10-12 | A kind of method of testing, sorting color separation |
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| Publication Number | Publication Date |
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| CN106423915B true CN106423915B (en) | 2018-11-23 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2828768Y (en) * | 2005-05-27 | 2006-10-18 | 韩金龙 | Automatic detection system of LED |
| KR100946015B1 (en) * | 2007-01-02 | 2010-03-09 | 삼성전기주식회사 | White led device and light source module for lcd backlight using the same |
| CN101412026B (en) * | 2008-10-28 | 2012-07-25 | 广州市鸿利光电股份有限公司 | Method for sorting white light LED |
| DE102008064073A1 (en) * | 2008-12-19 | 2010-06-24 | Osram Gesellschaft mit beschränkter Haftung | A method of manufacturing a plurality of LED lighting devices and LED lighting device |
| CN107966848B (en) * | 2012-09-07 | 2021-07-20 | 群创光电股份有限公司 | Display device and method for manufacturing the same |
| JP6406069B2 (en) * | 2014-03-15 | 2018-10-17 | 日亜化学工業株式会社 | Light-emitting device selection method, lighting device manufacturing method, and lighting device |
| CN104806911A (en) * | 2015-05-07 | 2015-07-29 | 南宁世通琦明光电科技有限公司 | High-power LED (light-emitting diode) lamp |
| CN105457909A (en) * | 2015-12-09 | 2016-04-06 | 广州市鸿利光电股份有限公司 | LED light splitting method |
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Effective date of registration: 20210311 Address after: Room 110-7, building 3, 290 Xingci 1st Road, Hangzhou Bay New District, Ningbo City, Zhejiang Province, 315336 Patentee after: Ningbo anxinmei Semiconductor Co.,Ltd. Address before: 230012 Hefei City, Anhui, New Station Industrial Park Patentee before: HEFEI IRICO EPILIGHT TECHNOLOGY Co.,Ltd. |
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