CN117654923A - Sorting method and sorting system for light-emitting units - Google Patents
Sorting method and sorting system for light-emitting units Download PDFInfo
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- CN117654923A CN117654923A CN202211065940.XA CN202211065940A CN117654923A CN 117654923 A CN117654923 A CN 117654923A CN 202211065940 A CN202211065940 A CN 202211065940A CN 117654923 A CN117654923 A CN 117654923A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000003086 colorant Substances 0.000 claims abstract description 26
- 239000000758 substrate Substances 0.000 claims description 65
- 230000003287 optical effect Effects 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 11
- DMLAVOWQYNRWNQ-UHFFFAOYSA-N azobenzene Chemical group C1=CC=CC=C1N=NC1=CC=CC=C1 DMLAVOWQYNRWNQ-UHFFFAOYSA-N 0.000 claims description 6
- 125000000524 functional group Chemical group 0.000 claims description 6
- 238000000926 separation method Methods 0.000 abstract description 4
- 230000003760 hair shine Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
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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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- 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
- B07C5/36—Sorting apparatus characterised by the means used for distribution
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Abstract
The application provides a sorting method and a sorting system of a light-emitting unit, wherein the sorting method comprises the following steps: providing a colorimetric assembly comprising a colorimetric layer comprising a plurality of colorimetric blocks; providing a plurality of light-emitting units, arranging the plurality of light-emitting units opposite to the colorimetric components, and arranging one light-emitting unit corresponding to at least one colorimetric block; the plurality of light-emitting units emit light, and after the light emitted by the plurality of light-emitting units irradiates the colorimetric blocks at the corresponding positions, the colorimetric blocks develop colors to obtain corresponding color development results; the sorting component is provided for sorting the plurality of light-emitting units based on the color development results of the plurality of colorimetric blocks corresponding to the plurality of light-emitting units. The application shines to the colorimetric component through the light that the luminescent unit sent for the light that the different luminescent unit sent is absorbed to a plurality of colorimetric blocks of colorimetric component in order to show different colours, thereby carries out luminescent unit's separation through the color development difference of a plurality of colorimetric blocks, has promoted luminescent unit's separation degree of accuracy.
Description
Technical Field
The application belongs to the technical field of display, and particularly relates to a sorting method and a sorting system of a light-emitting unit.
Background
The mass transfer process in the screen preparation process is a key process for realizing the transfer of at least hundreds of thousands of light emitting units onto the back plate, and has the advantages of high efficiency and high yield. Because the light-emitting units of the screen body are required to be numerous, and the light-emitting units are limited by the film forming quality of the light-emitting units, the light-emitting units are difficult to meet the product requirements in terms of brightness and wavelength uniformity, so that the sorting of the light-emitting units becomes a great technical problem of mass production of display products.
Disclosure of Invention
The application provides a sorting method and a sorting system for light-emitting units, which are used for solving the technical problem of sorting a plurality of light-emitting units.
In order to solve the technical problems, one technical scheme adopted by the application is as follows: a sorting method of light emitting units, the sorting method comprising: providing a color-comparing assembly comprising a color-comparing layer comprising a plurality of color-comparing blocks; providing a plurality of light-emitting units, arranging the plurality of light-emitting units opposite to the colorimetric components, wherein one light-emitting unit is arranged corresponding to at least one colorimetric block; the plurality of light-emitting units emit light, and after the light emitted by the plurality of light-emitting units irradiates the colorimetric blocks at the corresponding positions, the colorimetric blocks develop colors to obtain corresponding color development results; and a sorting component is provided for sorting the plurality of the light-emitting units based on the color development results of the plurality of the colorimetric blocks corresponding to the plurality of the light-emitting units.
Further, one of the light emitting units corresponds to one of the color blocks.
Further, a shading layer is arranged between the adjacent colorimetric blocks.
Further, the step of providing a sorting component, sorting the plurality of light-emitting units based on the color development results of the plurality of color-comparison blocks corresponding to the plurality of light-emitting units, includes:
obtaining the color development results of all the colorimetric blocks;
grouping a plurality of the light emitting units based on the color development results of the respective color blocks;
all the light emitting units of the same group are transferred to the same substrate.
Further, the step of grouping the plurality of light emitting units based on the color development results of the respective color blocks includes:
arbitrarily selecting the color development results of the two color comparison blocks to calculate the difference value of the color parameters, and obtaining the corresponding difference value of the color parameters;
and dividing the luminous units corresponding to any two colorimetric blocks meeting the condition that the difference value of the color parameters is smaller than or equal to a first threshold value into a group.
Further, the step of grouping the plurality of light emitting units based on the color development results of the respective color blocks includes:
arbitrarily selecting the color development results of the two color comparison blocks to calculate the difference value of the optical parameters of the light emitted by the corresponding light-emitting units, and obtaining the corresponding difference value of the optical parameters;
any two light emitting units satisfying that the difference value of the optical parameters is less than or equal to a second threshold value are grouped into one group.
Further, the step of grouping the plurality of light emitting units based on the color development results of the respective color blocks includes:
counting the color parameters corresponding to the color development results of all the color comparison blocks, and determining a numerical range based on the numerical values of the color parameters corresponding to the color development results of all the color comparison blocks;
dividing the numerical range into a plurality of sub-numerical ranges, and dividing the light-emitting units corresponding to the color blocks with the numerical values of the color parameters in the same sub-numerical range into a group.
Further, the step of grouping the plurality of light emitting units based on the color development results of the respective color blocks includes:
calculating optical parameters of light emitted by the corresponding light-emitting units according to the color development results of all the color comparison blocks;
counting the optical parameters of the light emitted by the light emitting units corresponding to all the colorimetric blocks, and determining a numerical range based on the numerical values of the optical parameters of the light emitted by the light emitting units corresponding to all the colorimetric blocks;
the numerical range is divided into a plurality of sub-numerical ranges, and a plurality of light emitting units with the numerical values of the optical parameters within the same sub-numerical range are divided into a group.
Further, the step of transferring all the light emitting units of the same group to the same substrate includes:
transferring all the light emitting units in the same group to the same substrate in a laser transfer mode; or,
and transferring all the light-emitting units in the same group to the same substrate in a seal transferring mode.
The other technical scheme adopted by the application is as follows: the sorting system comprises a colorimetric assembly and a sorting assembly, wherein the colorimetric assembly comprises a colorimetric layer, the colorimetric layer comprises a plurality of colorimetric blocks, the colorimetric blocks are arranged opposite to the light emitting units, and the colorimetric blocks absorb light emitted by the light emitting units at corresponding positions and develop colors to obtain corresponding color development results; the sorting component is used for sorting the plurality of the light-emitting units based on the color development results of the plurality of the colorimetric blocks corresponding to the plurality of the light-emitting units.
Further, the colorimetric assembly further comprises a second substrate, and the colorimetric layer is located on one side of the second substrate.
Further, the second substrate is a transparent substrate.
Further, the colorimetric block comprises a photosensitive material.
Further, the color block comprises a photochromic material comprising at least one of a spiropyran functional group and an azobenzene functional group.
Further, a shading layer is arranged between the adjacent colorimetric blocks.
The beneficial effects of this application are: the color comparison block is arranged corresponding to at least one color comparison block through a light-emitting unit; the plurality of light-emitting units emit light, and after the light emitted by the plurality of light-emitting units irradiates the colorimetric blocks at the corresponding positions, the colorimetric blocks develop colors to obtain corresponding color development results; and a sorting component is provided for sorting the plurality of light-emitting units based on the color development results of the plurality of colorimetric blocks corresponding to the plurality of light-emitting units. The color development difference of the colorimetric blocks is used for sorting the light-emitting units, so that the sorting accuracy of the light-emitting units is improved, and meanwhile, the color development difference sorting device has the characteristics of high sorting efficiency and low cost. The integrated application is carried out on the selected light-emitting units, namely the light-emitting units corresponding to the colorimetric blocks with the color development results approaching to be consistent, so that the display uniformity of the display product is improved, and the display effect is ensured.
Drawings
For a clearer description of the technical solutions in the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
FIG. 1 is a flow chart of an embodiment of a sorting method of light emitting units of the present application;
FIG. 2 is a schematic diagram of the structure of the light emitting unit assembly and the color comparison assembly of the present application;
FIG. 3 is a schematic top view of the color development result of the colorimetric layer of the colorimetric assembly of FIG. 2;
FIG. 4 is a schematic flow chart of step S4 in FIG. 1;
FIG. 5 is a flowchart illustrating an embodiment of step S42 in FIG. 4;
FIG. 6 is a flowchart illustrating the step S42 of FIG. 4 according to another embodiment;
fig. 7 is a schematic structural view of the sorting assembly of the present application.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Referring to fig. 1, 2 and 3, a sorting method of light emitting units includes:
s1, providing a colorimetric assembly 20, wherein the colorimetric assembly 20 comprises a colorimetric layer 22, and the colorimetric layer 22 comprises a plurality of colorimetric blocks 23.
The color development function is mainly realized by the color comparison layer 22 when the color comparison assembly 20 is irradiated by different light, the color comparison layer 22 shows a single color when the color comparison assembly 20 is irradiated by the light emitted by a single light source, and the color comparison layer 22 shows different colors when the color comparison assembly 20 is irradiated by the light emitted by a plurality of light sources correspondingly at different positions of the color comparison layer 22. In an embodiment, the colorimetric layer 22 is divided into a plurality of colorimetric blocks 23, the plurality of colorimetric blocks 23 are respectively irradiated by light emitted by different light sources, and the color development result of each colorimetric block 23 is related to the optical parameter of the light emitted by the corresponding light source, so that the optical parameter of the light emitted by the light source can be determined by the color development result of the colorimetric block 23.
S2, providing a light-emitting unit assembly, wherein the light-emitting unit assembly comprises a plurality of light-emitting units 12, the plurality of light-emitting units 12 are arranged opposite to the colorimetric assembly 20, and one light-emitting unit 12 is arranged corresponding to at least one colorimetric block 23.
Specifically, the light-emitting unit assembly includes a first substrate 11 and a plurality of light-emitting units 12 disposed on one side of the first substrate 11, where the plurality of light-emitting units 12 are disposed opposite to a plurality of color blocks 23 of a color comparison layer 22 of the color comparison assembly 20, so that light emitted by the plurality of light-emitting units 12 can be respectively irradiated onto the plurality of color comparison blocks 23 of the color comparison layer 22 of the color comparison assembly 20, and the plurality of color comparison blocks 23 of the color comparison layer 22 of the color comparison assembly 20 can display different colors according to optical parameters of the light emitted by the light-emitting units 12, wherein the optical parameters of the light include light intensity, wavelength, etc., in other words, the "the plurality of color comparison blocks 23 display different colors", that is, the optical parameters of the light emitted by the plurality of light-emitting units 12 corresponding to the plurality of color comparison blocks 23 are different. In order to make the color block 23 of the color layer 22 of the color component 20 accurately receive the light emitted by the light emitting units 12 and accurately obtain the color development result corresponding to the light emitting units 12, in a preferred embodiment, one light emitting unit 12 may be disposed corresponding to one color block 23, and at this time, the color block 23 may accurately receive the light emitted by the corresponding light emitting unit 12, thereby reducing the interference of the light emitted by other light emitting units and improving the accuracy of the color development result.
And S3, enabling the plurality of light-emitting units 12 to emit light, and enabling the light emitted by the plurality of light-emitting units 12 to irradiate the colorimetric block 23 at the corresponding position, and then enabling the colorimetric block 23 to perform color development to obtain a corresponding color development result.
After the light emitting unit 12 emits light, the color comparison block 23 corresponding to the light emitting unit 12 can receive the light emitted by the light emitting unit 12, and the color comparison block 23 performs color development, wherein the color development results of the color comparison blocks 23 corresponding to different light emitting units 12 may be different, and naturally, the color comparison blocks 23 with consistent color development results also exist. In an embodiment, the wavelengths of the light emitted by the different light emitting units 12 have different values, however, the different values are small and are difficult to directly obtain, by arranging the colorimetric blocks 23, after the colorimetric blocks 23 receive the light emitted by the corresponding light emitting units 12, the color differences of the different colorimetric blocks 23 are obvious, and by comparing the color differences between the different colorimetric blocks 23, the light emitting units 12 are conveniently sorted, and the sorting accuracy is effectively improved.
And S4, providing a sorting component 30, and sorting the plurality of light-emitting units 12 based on the color development results of the plurality of colorimetric blocks 23 corresponding to the plurality of light-emitting units 12.
The sorting unit 30 groups the plurality of light emitting units 12 according to the color development results of the plurality of color blocks 23, for example, the light emitting units 12 corresponding to the color blocks 23 whose color development results meet the preset conditions may be sorted into one group according to the color development results of the color blocks 23. Since the color block 23 is provided corresponding to the light emitting units 12, the same type of light emitting units 12 can be determined according to the color development result of the color block 23.
With continued reference to fig. 2 and 3, one light-emitting unit 12 corresponds to one color block 23, and a light shielding layer 24 is disposed between adjacent color blocks 23. The light emitting unit 12 is provided on the first substrate 11 side, and after power is applied, the light emitting unit 12 emits light. The plurality of color blocks 23 of the color comparison layer 22 of the color comparison assembly 20 are arranged opposite to the plurality of light emitting units 12 to receive and develop the light emitted from the light emitting units 12 at the corresponding positions; the colorimetric layer 22 includes a plurality of colorimetric blocks 23 arranged at intervals, and one colorimetric block 23 is used for corresponding to one light-emitting unit 12. In one embodiment, the plurality of color blocks 23 are in one-to-one correspondence with the plurality of light emitting units 12, such that light emitted by a single light emitting unit 12 illuminates the corresponding color block 23. The sorting unit 30 includes an image collection device 31, a processor 32 and a transfer device 33, the image collection device 31 obtains the color development results of all the color blocks 23, the processor 32 recognizes the color development results of all the color blocks 23 and transmits the information of the light emitting units 12 to be transferred to the transfer device 33, and the transfer device 33 performs a transfer operation on the light emitting units 12 to be transferred. In this application, the processor 32 identifies the color development results of all the color comparison blocks 23 acquired by the image acquisition device 31, so as to determine the position of the corresponding light-emitting unit 12, ensure that the transfer device 33 can transfer the light-emitting unit 12 quickly and accurately, and improve the transfer efficiency.
Optionally, a light shielding layer 24 is disposed between the adjacent color comparison blocks 23, and by disposing the light shielding layer 24 between the adjacent color comparison blocks 23, light emitted by the adjacent light emitting units 12 can be prevented from affecting the color development result of the color comparison blocks 23, that is, preventing mutual interference between the color development results of the adjacent color comparison blocks 23, thereby ensuring the accuracy of the color development result of the color comparison blocks 23. The light shielding layer 24 may be a light absorbing strip or a light absorbing plate.
Referring to fig. 4, fig. 4 is a schematic flow chart of step S4 in fig. 1; in the sorting method of the light emitting units 12, a sorting module 30 is provided, and the steps of sorting the plurality of light emitting units 12 based on the color development results of the plurality of color blocks 23 corresponding to the plurality of light emitting units 12 include:
and S41, obtaining the color development results of all the color comparison blocks 23.
The light emitted from the light emitting units 12 is irradiated onto the corresponding color blocks 23 in the color block 20 through the transparent first substrate 11, and the color blocks 23 display different colors according to different optical parameters of the light emitted from the light emitting units 12. The image acquisition device 31 acquires the color development results of all the color comparison blocks 23, the colors developed by the color comparison blocks 23 have color parameters, the color parameters comprise hue values, brightness, saturation and the like, and the color values of the colors developed by the color comparison blocks 23 are mainly used for grouping the light-emitting units 12 corresponding to the color comparison blocks 23. Hue is the primary characteristic of color, and is the most accurate standard for distinguishing various colors, and the difference between hues is determined by the length of the wavelength of light. The different color blocks 23 receive the light emitted by the different light emitting units 12, so that the hues of the colors displayed by the different color blocks 23 are obviously different, that is, the hue values of the colors displayed by the different color blocks 23 are different. Therefore, the color shade values corresponding to the colors developed by the color blocks 23 can divide the light emitting units 12 corresponding to the color blocks 23 whose color development results are nearly identical into one group.
The color development result of the color block is related to the optical parameter of the light emitted by the corresponding light emitting unit 12, that is, the optical parameter of the light emitted by the light emitting unit 12, including the wavelength, can be calculated from the color development result of the color block 23. At the same time, the color of the color block 23 of the color layer 22 can be reversibly changed.
S42, based on the color development results of the respective color blocks 23, the plurality of light emitting units 12 are grouped.
In one embodiment, the difference value of the color parameters corresponding to the color development results of the color blocks 23 corresponding to any two light-emitting units 12 in the same group is smaller than or equal to the first threshold value, so as to divide the light-emitting units 12 corresponding to the color blocks 23 with consistent color development results into one group.
In one embodiment, the difference between the optical parameters of the light emitted by any two light emitting units 12 in the same group is less than or equal to the second threshold value, so as to divide the light emitting units 12 corresponding to the color development blocks 23 with consistent color development results into one group.
The image acquisition device 31 may obtain image information of the color development results of the respective color blocks 23 by photographing or the like, and transmit the image information of the color development results of the respective color blocks 23 to the processor 32. Specifically, the processor 32 performs a comparative analysis on the color development results of the color development blocks 23 according to the image information of the color development results, groups the light emitting units corresponding to the color blocks having the color parameters having the difference value less than or equal to the first threshold value, and transmits the information of the same group of light emitting units 12 to the transfer device 33. Specifically, the processor 32 performs group selection on the light emitting units 12 corresponding to the color blocks 23, where the difference value of the color parameters corresponding to the color results is smaller than or equal to the first threshold, according to the image information of the color results acquired by the image acquisition device 31.
In one embodiment, the processor may reversely calculate the optical parameters of the light emitted by the light emitting units 12 corresponding to the colorimetric block 23 according to the color development result of the colorimetric block 23, so as to calculate the difference value of the optical parameters of the light emitted by any two light emitting units 12, and group-select the light emitting units 12 with the difference value of the optical parameters being less than or equal to the second threshold value.
And S43, transferring all the light emitting units 12 in the same group to the same substrate.
The processor 32 transmits information of the light emitting units 12 to be transferred to the transfer device 33, and the transfer device 33 performs a transfer operation on the corresponding light emitting units 12 to be transferred.
Referring to fig. 5, fig. 5 is a flowchart illustrating an embodiment of step S42 in fig. 4; wherein the step of grouping the plurality of light emitting units 12 based on the color development results of the respective color blocks 23 includes:
s421: and arbitrarily selecting the color development results of the two color comparison blocks 23 to calculate the difference value of the color parameters, and obtaining the corresponding difference value of the color parameters.
Specifically, the processor 32 compares the color parameters corresponding to the color development results of the color comparison block 23 two by two and calculates the difference value, thereby obtaining the difference value of the color parameters corresponding to all the color development results. In one embodiment, the median or mode of the color parameters may be determined by taking the differences in the color parameters corresponding to all color development results.
S422: the light emitting units 12 corresponding to any two color blocks 23 satisfying the difference value of the color parameters less than or equal to the first threshold value are grouped into one group.
Specifically, the difference value of the color parameters corresponding to all the color development results is compared with a preset threshold, wherein the light-emitting units corresponding to the two colorimetric blocks 23 with the difference value of the color parameters smaller than or equal to the preset threshold are divided into a group. In the present application, a plurality of preset thresholds are selected, and after the difference values of the color parameters corresponding to all the color development results are compared with the plurality of preset thresholds, the light emitting units 12 corresponding to all the color comparison blocks 23 are divided into a plurality of groups. In an embodiment, the light emitting units 12 corresponding to the color blocks 23 may be grouped by the median of the color parameters, and when the light emitting units 12 corresponding to the color blocks 23 are grouped by the median of the color parameters, all the light emitting units 12 corresponding to the color blocks 23 may be divided into two groups, where the differences between the color parameters corresponding to the color development results of the color blocks 23 corresponding to the light emitting units 12 in the same group are smaller, so that the requirements of the subsequent applications may be satisfied. Grouping of the corresponding light emitting units 12 can be completed by grouping the color parameters corresponding to the color development result of the contrasting color block 23.
For S42, the optical parameters of the light emitted by the light emitting units 12 corresponding to the colorimetric block 23 may be reversely deduced according to the color development result of the colorimetric block 23, so as to calculate the difference value of the optical parameters of the light emitted by any two light emitting units 12, and group-select the light emitting units 12 with the difference value of the optical parameters being less than or equal to the second threshold value. The method is also applicable to the steps S421 and S422, and the color parameters in the steps S421 and S422 are only required to be adapted and replaced by the optical parameters of the light emitted by the light emitting unit 12. And will not be described in detail here.
Referring to fig. 6, fig. 6 is a flowchart illustrating another embodiment of step S42 in fig. 4; wherein the step of grouping the plurality of light emitting units 12 based on the color development results of the respective color blocks 23 includes:
s421': and counting the color parameters corresponding to the color development results of all the color blocks 23, and determining the numerical range based on the numerical values of the color parameters corresponding to the color development results of all the color blocks 23.
The color parameters corresponding to the color development results of all the color blocks 23 are counted, and the numerical range of the color parameters corresponding to the color development results of all the color blocks 23 can be determined according to the data of the counted results.
S422': the numerical range is divided into a plurality of sub-numerical ranges, and the light emitting units 12 corresponding to the plurality of color blocks 23 having the numerical values of the color parameters within the same sub-numerical range are divided into a group.
The statistical numerical range is referred to, the information of the color parameters corresponding to the color development result of the colorimetric block 23 is determined, the total numerical range can be divided into a plurality of sub-numerical ranges, and meanwhile, the light-emitting units 12 corresponding to the colorimetric block 23 which do not meet the use requirements can be screened and can be removed in the subsequent operation, so that the effect of removing defective products in the light-emitting units 12 is achieved. The plurality of sub-numerical value ranges are distributed in an arithmetic progression, and the light-emitting units 12 corresponding to the plurality of color blocks 23 with the color parameter values within the same sub-numerical value range are divided into a group.
For S42, the optical parameter of the light emitted from the light emitting unit 12 corresponding to the color block 23 may be reversely deduced according to the color development result of the color block 23. The optical parameters of the light emitted by the light emitting units 12 corresponding to all the color blocks 23 are also applicable to the steps S421 and S422', and the color parameters in the steps S421 and S422' are only required to be adapted to be replaced by the optical parameters of the light emitted by the light emitting units 12. And will not be described in detail here.
In S43, the step of transferring all the light emitting units 12 of the same group to the same substrate includes:
all the light emitting units 12 of the same group are transferred to the same substrate by means of laser transfer, or all the light emitting units 12 of the same group are transferred to the same substrate by means of stamp transfer.
The transfer device 33 can transfer the light-emitting unit 12 by means of laser transfer or stamp transfer according to instructions of the processor 32. In an embodiment, the processor 32 may determine the position information of all the light emitting units 12 according to the color development results of the color blocks 23 corresponding to all the light emitting units 12 in the same group, and send an instruction to the transferring device 33 to transfer the light emitting units 12 in the same group. For example, the processor 32 obtains the position information of all the light emitting units 12 in the same group, instructs the transfer device 33 based on the position information, and the transfer device 33 transfers all the light emitting units 12 in the same group to the same substrate after receiving the instruction.
In one embodiment, the processor 32 obtains target color information of the color development result of the color block 23, and the transfer device 33 transfers the light emitting units 12 in the same group corresponding to the target color information into the same substrate based on the target color information. In this embodiment, the transfer device 33 transfers the light emitting units 12 according to the target color information of the color development result of the color block 23 corresponding to the light emitting unit 12, without calculating the position information of the same group of light emitting units 12, thereby improving the transfer efficiency.
In one embodiment, the processor will obtain the position information of the corresponding light emitting units 12 according to the color parameters corresponding to the color development results of the grouped color blocks 23, and the processor 32 records the position information of the light emitting units 12 corresponding to all color blocks 23 in each group. Because the colorimetric blocks 23 correspond to the positions of the light-emitting units 12, the position information of the same group of light-emitting units 12 is determined by the position information of the same group of colorimetric blocks 23, and the transfer device 33 transfers the same group of light-emitting units 12 to the same substrate or the driving backboard according to the received position information of the same group of light-emitting units 12, so that the light-emitting units 12 corresponding to the colorimetric blocks 23 with consistent color development are positioned on the same substrate or the driving backboard, and the display uniformity of the display screen is ensured.
The sorting system of the light emitting units provided by the application can be applied to the sorting method of the light emitting units provided by any embodiment. A sorting system for light emitting units includes a colorimetric assembly 20 and a sorting assembly 30; the colorimetric assembly 20 comprises a colorimetric layer 22, the colorimetric layer 22 comprises a plurality of colorimetric blocks 23, the colorimetric blocks 23 are arranged opposite to the light-emitting units 12, and the colorimetric blocks 23 absorb light emitted by the light-emitting units 12 at corresponding positions and develop colors to obtain corresponding color development results; the sorting component 30 is used for sorting the plurality of light-emitting units 12 based on the color development results of the plurality of color blocks 23 corresponding to the plurality of light-emitting units.
Wherein the light emitting unit 12 is disposed on the first substrate 11 side, and the light emitting unit 12 emits light after being energized. The color comparison component 20 is arranged opposite to the plurality of light emitting units 12 to absorb and develop the light emitted by the light emitting units 12 at the corresponding positions; wherein, the light with different optical parameters causes the color block 23 of the color comparison assembly 20 to show different colors, the optical parameters of the light include light intensity, wavelength, etc., the colors have color parameters, and the color parameters of different colors are different; the color comparison component 20 can develop color according to the light emitted by the light emitting unit 12, so that the difference of the light emitted by the light emitting unit 12 is amplified, the recognition difficulty is reduced, and the sorting accuracy of the light emitting unit 12 is improved.
Further, the sorting component 30 is configured to sort the plurality of light emitting units 12 based on the color development results of the plurality of color blocks 23 corresponding to the plurality of light emitting units 12. Sorting assembly 30 includes a laser transfer device or stamp transfer device. For example, when the light emitting units 12 are disposed on the growth substrate or the temporary substrate, the light emitting units 12 corresponding to the color blocks 23 having the color parameters having the difference value smaller than or equal to the first threshold value corresponding to the color development result may be sorted and transferred to the same driving back plate by means of laser transfer or stamp transfer, so as to improve the uniformity of display. For example, when the light emitting unit 12 is located on the driving back plate, the light emitting unit 12 corresponding to the colorimetric block 23 whose color development result does not meet the preset condition may be removed from the driving back plate by laser transfer or stamp transfer.
In the above design manner, the color separation device utilizes the light-emitting units 12 to emit light and irradiate the color comparison assembly 20, so that the plurality of color comparison blocks 23 of the color comparison assembly 20 absorb the light emitted by different light-emitting units 12 to display different colors, and the effect of improving the separation accuracy of the light-emitting units 121 through color development difference is achieved.
With continued reference to fig. 2, in an embodiment, the first substrate 11 is a transparent substrate, the light emitting units 12 are regularly arranged on the upper surface of the first substrate 11, and the light emitted by the light emitting units 12 can pass through the transparent first substrate 11 to irradiate the color comparison component 20, and the transparent first substrate 11 can ensure that the light emitted by the light emitting units 12 can irradiate the color comparison component 20 below. The light-emitting unit 12 to be selected may be a light-emitting unit 12 with the same light-emitting color, and the sorting component 30 is configured to sort the qualified products in the light-emitting unit 12, and transfer the light-emitting unit 12 corresponding to the colorimetric block 23 with the color parameter corresponding to the color development result meeting the preset condition to the same substrate; the light emitting units 12 to be selected may be light emitting units 12 with different colors, and the sorting component 30 is configured to group-select the light emitting units 12, and transfer the light emitting units 12 corresponding to the color blocks 23 with color parameters corresponding to the color development result meeting preset conditions to the same substrate.
The light emitted by the light-emitting unit 12 passes through the transparent first substrate 11 and irradiates the color comparison assembly 20, so that the color comparison assembly 20 performs color development, the color development difference of the light emitted by the light-emitting unit 12 is improved through the color comparison assembly 20, and the difficulty of color recognition is reduced.
In another embodiment, the light emitting units 12 are regularly arranged on the lower surface of the first substrate 11, at this time, the light emitting units 12 are closer to the color comparison component 20 than the first substrate 11, and the light emitting units 12 emit light, so that the light emitted by the light emitting units 12 can directly irradiate the color comparison component 20 below, and the color comparison component 20 develops color, and the color development difference of the light emitted by the light emitting units 12 is improved through the color comparison component 20, so that the difficulty of color recognition is reduced.
The colorimetric assembly 20 includes a second substrate 21 and a colorimetric layer 22 on one side of the second substrate 21; preferably, the second substrate 21 is a transparent substrate. Preferably, the colorimetric layer 22 is closer to the light-emitting unit 12 than the second substrate 21. The colorimetric layer 22 stacked on the second substrate 21 can absorb the light emitted by the light emitting unit 12, so as to develop color, thereby amplifying the color distinction of the light emitted by the light emitting unit 12, reducing the difficulty of color recognition, and improving the sorting accuracy of the light emitting unit 12.
Alternatively, the second substrate 21 is a transparent substrate. In one embodiment, the image capturing device 31 is disposed directly under the second substrate 21, and since the second substrate 21 is a transparent substrate, the color development result of the colorimetric layer 22 can be recognized directly by the image capturing device 31. In another embodiment, the second substrate 21 is a white substrate, and the image acquisition device 31 is disposed at a position obliquely above the colorimetric layer 22, and the white substrate can provide a background color, so that the color development result of the colorimetric layer 22 is more easily distinguished. The material of the second substrate 21 may be one or more of glass, sapphire and quartz glass.
Optionally, the colorimetric layer 22 is closer to the light-emitting unit 12 than the second substrate 21. In one embodiment, the colorimetric layer 22 may be disposed on the upper surface of the second substrate 21, so that the colorimetric layer 22 may directly receive the light emitted from the light-emitting unit 12, avoiding interference, and making the color development of the colorimetric layer 22 faster and more accurate. In another embodiment, the colorimetric layer 22 may be disposed on the lower surface of the transparent second substrate 21, and the image acquisition device 31 for acquiring the color development result may be disposed below the colorimetric layer 22, so as to directly acquire the color development result of the colorimetric layer 22, thereby ensuring more accurate color recognition.
Further, the colorimetric layer 22 includes a plurality of colorimetric blocks 23, and the colorimetric blocks 23 include a photosensitive material; further, the color block 23 includes a photochromic material including at least one of a spiropyran functional group and an azobenzene functional group. While the color of the colorimetric layer 22 can be reversibly changed. Optionally, the molecular structure of the photochromic material of the colorimetric layer 22 includes at least one of a spiropyran functional group, an azobenzene functional group. The spiropyran functional group and the azobenzene functional group are components of the photochromic material, the acquisition is simple, and the photochromic material can display different colors when irradiated with light with different wavelengths. In actual use, one of the spiropyran functional group and the azobenzene functional group or both are selected according to specific sorting requirements.
At the same time, the color developed by the colorimetric layer 22 can be reversibly changed. When the light emitted from the light emitting unit 12 is irradiated to the colorimetric layer 22, the colorimetric layer 22 may undergo a certain degree of color change and slowly return to the original color after a certain time. Or, when the colorimetric layer 22 is irradiated by another light with a fixed wavelength or heated, the color can be restored to the original color, so that the color restoration time of the colorimetric layer 22 is reduced, and the sorting efficiency of the light-emitting unit 12 is ensured.
In addition, the colorimetric layer 22 includes a plurality of colorimetric blocks 23 arranged at intervals, and one colorimetric block 23 is used for corresponding to one light-emitting unit 12. In one example, the plurality of color blocks 23 are in one-to-one correspondence with the plurality of light emitting units 12, so that light emitted from a single light emitting unit 12 is irradiated to the corresponding color block 23. The processor 32 recognizes the color development results of all the color blocks 23, thereby determining the position information of the corresponding light emitting units 12, ensuring that the transfer device 33 can transfer the light emitting units 12 rapidly and accurately, and improving the transfer efficiency.
With continued reference to fig. 3, in the sorting system of the light-emitting unit 12, a light shielding layer 24 is disposed between adjacent color blocks 23. In one embodiment, by providing the light shielding layer 24 between the adjacent color blocks 23, the light emitted from the adjacent light emitting units 12 can be prevented from affecting the color development of the color blocks 23, and the accuracy of the color development result can be ensured. The light shielding layer 24 may be a light absorbing strip or a light absorbing plate, and the like, and is selected according to practical situations.
Referring to fig. 7, fig. 7 is a schematic structural view of the sorting assembly 30 of the present application. The sorting assembly 30 includes an image capturing device 31, a processor 32 and a transferring device 33, where the image capturing device 31 is configured to obtain image information of a color development result of the color comparison assembly 20, and according to practical situations, when the second substrate 21 is made of a transparent material, the image capturing device 31 may be disposed below the second substrate 21, so as to capture an image of the color development result of the color comparison layer 22 located on the upper surface of the second substrate 21, or when the second substrate 21 is made of a white material, the image capturing device 31 is disposed at an obliquely upper position of the color comparison layer 22, so as to perform image capturing of the color development result.
The processor 32 is coupled to the image acquisition device 31, and is configured to obtain color parameters corresponding to the color development results of the color block 23 corresponding to each light emitting unit 12 based on the image of the color development results, and generate corresponding transfer instructions based on the color parameters. The processor 32 may obtain color parameters corresponding to the color development results of the color comparison blocks 23 in the color comparison layer 22 according to the image of the color development results of the color comparison layer 22 acquired by the image acquisition device 31, perform difference calculation on the color parameters corresponding to the color development results of the color comparison blocks 23, divide the color comparison blocks 23 with the color parameters smaller than or equal to the first threshold value into a group, and then obtain the grouping situation of the light emitting units 12 corresponding to the color comparison blocks 23, so that the colors of the lights emitted by the light emitting units 12 in the same group are kept consistent, thereby improving the uniformity of display. The processor 32 calculates and acquires the coordinate positions of the color blocks 23 in the same group, and since the color blocks 23 correspond to the light emitting units 12, the coordinate positions of the light emitting units 12 in the same group can be acquired, and a transfer instruction is generated based on the coordinate positions of the light emitting units 12 in the same group.
Transfer means 33 for transferring at least part of the plurality of light emitting units 12 based on the transfer instruction. Since the transfer instruction of the processor 32 includes the coordinate positions of the same group of light emitting units 12, the transfer device 33 may be a laser transfer device or a stamp transfer device, and transfers the same group of light emitting units 12 to the same driving back plate or substrate according to the coordinate positions, so that the same group of light emitting units 12 are integrated in the same driving back plate or substrate, thereby improving the display uniformity of the display device.
The sorting method and the sorting system for the luminous units 12 are provided, wherein one luminous unit 12 is arranged corresponding to at least one colorimetric block 23; the plurality of light-emitting units 12 emit light, and after the light emitted by the plurality of light-emitting units 12 irradiates the colorimetric block 23 at the corresponding position, the colorimetric block 23 performs color development to obtain a corresponding color development result; a sorting module 30 is also provided to sort the plurality of light emitting units 12 based on the color development results of the plurality of color blocks 23 corresponding to the plurality of light emitting units. By the design, the effect of improving the sorting accuracy of the light-emitting units 12 through the color development difference of the color comparison blocks 23 is achieved, and meanwhile, the sorting efficiency is high and the cost is low. The integrated application is carried out on the sorted light-emitting units 12, namely the light-emitting units 12 with the light-emitting colors approaching to be consistent, so that the display uniformity of the display product is improved, and the display effect is ensured.
The foregoing description is only exemplary embodiments of the present application and is not intended to limit the scope of the present application, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the present application.
Claims (10)
1. A sorting method of light emitting units, characterized in that the sorting method comprises:
providing a color-comparing assembly comprising a color-comparing layer comprising a plurality of color-comparing blocks;
providing a plurality of light-emitting units, arranging the plurality of light-emitting units opposite to the colorimetric components, wherein one light-emitting unit is arranged corresponding to at least one colorimetric block;
the plurality of light-emitting units emit light, and after the light emitted by the plurality of light-emitting units irradiates the colorimetric blocks at the corresponding positions, the colorimetric blocks develop colors to obtain corresponding color development results;
and a sorting component is provided for sorting the plurality of the light-emitting units based on the color development results of the plurality of the colorimetric blocks corresponding to the plurality of the light-emitting units.
2. The method of claim 1, wherein,
one of the light emitting units corresponds to one of the color blocks;
preferably, a light shielding layer is arranged between adjacent colorimetric blocks.
3. The sorting method according to claim 2, wherein the step of providing the sorting module sorts the plurality of the light emitting units based on the color development results of the plurality of the color blocks corresponding to the plurality of the light emitting units, includes:
obtaining the color development results of all the colorimetric blocks;
grouping a plurality of the light emitting units based on the color development results of the respective color blocks;
all the light emitting units of the same group are transferred to the same substrate.
4. The sorting method according to claim 3, wherein the step of grouping the plurality of light emitting units based on the color development results of the respective color blocks includes:
arbitrarily selecting the color development results of the two color comparison blocks to calculate the difference value of the color parameters, and obtaining the corresponding difference value of the color parameters;
and dividing the luminous units corresponding to any two colorimetric blocks meeting the condition that the difference value of the color parameters is smaller than or equal to a first threshold value into a group.
5. The sorting method according to claim 3, wherein the step of grouping the plurality of light emitting units based on the color development results of the respective color blocks includes:
arbitrarily selecting the color development results of the two color comparison blocks to calculate the difference value of the optical parameters of the light emitted by the corresponding light-emitting units, and obtaining the corresponding difference value of the optical parameters;
any two light emitting units satisfying that the difference value of the optical parameters is less than or equal to a second threshold value are grouped into one group.
6. The sorting method according to claim 3, wherein the step of grouping the plurality of light emitting units based on the color development results of the respective color blocks includes:
counting the color parameters corresponding to the color development results of all the color comparison blocks, and determining a numerical range based on the numerical values of the color parameters corresponding to the color development results of all the color comparison blocks;
dividing the numerical range into a plurality of sub-numerical ranges, and dividing the light-emitting units corresponding to the color blocks with the numerical values of the color parameters in the same sub-numerical range into a group.
7. The sorting method according to claim 3, wherein the step of grouping the plurality of light emitting units based on the color development results of the respective color blocks includes:
calculating optical parameters of light emitted by the corresponding light-emitting units according to the color development results of all the color comparison blocks;
counting the optical parameters of the light emitted by the light emitting units corresponding to all the colorimetric blocks, and determining a numerical range based on the numerical values of the optical parameters of the light emitted by the light emitting units corresponding to all the colorimetric blocks;
the numerical range is divided into a plurality of sub-numerical ranges, and a plurality of light emitting units with the numerical values of the optical parameters within the same sub-numerical range are divided into a group.
8. A sorting method according to claim 3, characterized in that the step of transferring all the light emitting units of the same group to the same substrate comprises:
transferring all the light emitting units in the same group to the same substrate in a laser transfer mode; or,
and transferring all the light-emitting units in the same group to the same substrate in a seal transferring mode.
9. A sorting system for lighting units, the sorting system comprising:
the color comparison assembly comprises a color comparison layer, the color comparison layer comprises a plurality of color comparison blocks, the color comparison blocks are arranged opposite to the plurality of light-emitting units, and the plurality of color comparison blocks absorb light emitted by the light-emitting units at corresponding positions and develop colors to obtain corresponding color development results;
and the sorting component is used for sorting the plurality of the light-emitting units based on the color development results of the plurality of the colorimetric blocks corresponding to the plurality of the light-emitting units.
10. The sorting system of claim 9, wherein,
the colorimetric assembly further comprises a second substrate, and the colorimetric layer is positioned on one side of the second substrate;
preferably, the second substrate is a transparent substrate;
preferably, the colorimetric block comprises a photosensitive material;
preferably, the colorimetric block comprises a photochromic material comprising at least one of a spiropyran functional group, an azobenzene functional group;
preferably, a light shielding layer is arranged between adjacent colorimetric blocks.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211065940.XA CN117654923A (en) | 2022-08-31 | 2022-08-31 | Sorting method and sorting system for light-emitting units |
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| CN202211065940.XA CN117654923A (en) | 2022-08-31 | 2022-08-31 | Sorting method and sorting system for light-emitting units |
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