Light-emitting element pickup sequence determination method, light-emitting element pickup method, light-emitting element transfer method, apparatus, device and medium

Abstract

Disclosed are a light-emitting element pickup sequence determination method, a light-emitting element pickup method, a light-emitting element transfer method, an apparatus, a device and a medium, relating to the field of light-emitting elements. The light-emitting element pickup sequence determination method comprises: acquiring first substrate data of a first substrate, wherein the first substrate comprises a plurality of first light-emitting elements, the first substrate data comprises first position information, and the first position information is used for indicating the position of the plurality of first light-emitting elements on the first substrate; on the basis of the first position information and a target rule, dividing the first substrate into a plurality of first areas; and determining a first pickup sequence on the basis of the plurality of first areas, wherein the first pickup sequence is used for instructing to pick up the first light-emitting elements on the basis of a first target sequence and / or a second target sequence, the first target sequence comprises sequentially picking up the first light-emitting elements from at least two first areas on the first substrate, and the second target sequence comprises sequentially picking up the first light-emitting elements from the same first area on the first substrate. The method can improve the utilization rate of the light-emitting elements.

Description

Method for determining pickup sequence of light emitting element, method for picking up and transferring light emitting element, device, equipment and medium

[0001] The present application claims priority from Chinese Patent Application No. 202410661003.3, filed on May 24, 2024, and entitled "Method for determining pickup sequence of light emitting element, method for picking up and transferring light emitting element, device, equipment and medium", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present disclosure relates to the field of light emitting elements, and in particular to a method for determining a pickup sequence of a light emitting element, a method for picking up and transferring a light emitting element, a device, an equipment and a medium. BACKGROUND

[0003] In the process of manufacturing a light emitting device, it is usually necessary to first pick up light emitting elements from a first substrate having a plurality of light emitting elements, and then transfer the picked up light emitting elements to a second substrate. It is necessary to determine a suitable pickup sequence to mix the light emitting elements on the first substrate during the pickup process of the light emitting elements, so as to avoid the optical characteristic parameters (such as wavelength, brightness, etc.) of the light emitting elements in the light emitting device from being regionally concentrated, thereby causing regional differences.

[0004] In related technologies, a method for determining a pickup sequence of a light emitting element includes: setting two or three continuous wavelength screening intervals for a color of the light emitting element; obtaining main wavelengths of a plurality of light emitting elements on a wafer; screening out light emitting elements with wavelengths located within the wavelength screening intervals according to the main wavelengths of the plurality of light emitting elements and the wavelength screening intervals; and determining the pickup sequence according to a proportion of the light emitting elements with different wavelength screening intervals.

[0005] However, when the pickup sequence of the light emitting element is determined by using the above method, only the light emitting elements with wavelengths located within the wavelength screening intervals are used, which leads to waste of the light emitting elements with wavelengths located outside the wavelength screening intervals. SUMMARY

[0006] The present disclosure provides a method for determining a pickup sequence of a light emitting element, a method for picking up and transferring a light emitting element, a device, an equipment and a medium, which can improve the utilization rate of the light emitting element. The technical solution at least includes the following solutions:

[0007] In a first aspect, a method for determining a pickup sequence of light emitting elements is provided. The method includes obtaining first substrate data of a first substrate, the first substrate including a plurality of first light emitting elements, the first substrate data including first position information, the first position information being indicative of positions of the plurality of first light emitting elements on the first substrate; dividing the first substrate into a plurality of first regions according to a target rule based on the first position information, each of the first regions including a plurality of the first light emitting elements; and determining a first pickup sequence based on the plurality of first regions, the first pickup sequence being indicative of a first target sequence and / or a second target sequence for picking up the first light emitting elements, the first target sequence including picking up the first light emitting elements from at least two of the first regions on the first substrate in a sequence, and the second target sequence including picking up the first light emitting elements from a same one of the first regions on the first substrate in a sequence.

[0008] Optionally, the dividing the first substrate into the plurality of first regions according to the target rule based on the first position information includes dividing the first substrate into the plurality of first regions arranged along a first direction based on the first position information, each of the first regions being strip-shaped and a length direction of each of the first regions intersecting the first direction.

[0009] Alternatively,

[0010] The dividing the first substrate into the plurality of first regions according to the target rule based on the first position information includes dividing the first substrate into the plurality of first regions arranged in a two-dimensional array based on the first position information.

[0011] Alternatively,

[0012] The dividing the first substrate into the plurality of first regions according to the target rule based on the first position information includes dividing the first substrate into the plurality of first regions based on the first position information and pixel distribution information of a first image, the first image including a plurality of pixels, the plurality of pixels in the first image being divided into a plurality of first pixel groups according to colors, pixels in a same one of the first pixel groups being of a same color, and pixels in different ones of the first pixel groups being of different colors, each of the first light emitting elements on the first substrate corresponding to a pixel, and each of the first regions corresponding to one of the plurality of first pixel groups.

[0013] Alternatively,

[0014] The dividing the first substrate into the plurality of first regions according to the target rule based on the first position information includes dividing the first substrate into the plurality of first regions according to the first position information and optical characteristic parameters of the plurality of first light emitting elements on the first substrate, the optical characteristic parameters of the first light emitting elements in a same one of the first regions belonging to a same parameter interval, and the optical characteristic parameters of the first light emitting elements in different ones of the first regions belonging to different parameter intervals.

[0015] Optionally, the first picking sequence is used to indicate picking the first light emitting elements in the second target sequence, and the determining the first picking sequence based on the plurality of first regions comprises: dividing the first light emitting elements in a first target region into a plurality of units, the first target region being any one of the plurality of first regions, each unit comprising a plurality of first light emitting elements, and at least two first light emitting elements in a same unit being arranged continuously in a first direction and / or a second direction, the first direction being a row direction or a column direction, and the second direction intersecting the first direction; and determining the second target sequence based on the plurality of units, the second target sequence being used to indicate picking the first light emitting elements from the plurality of units in turn according to an arrangement order or a random order between the plurality of units.

[0016] Optionally, the dividing the first light emitting elements in the first target region into a plurality of units comprises: dividing the first light emitting elements in the first target region into a plurality of continuous units, each of the units comprising a plurality of first light emitting elements, and at least a plurality of first light emitting elements adjacent in the first direction and / or the second direction being in a same unit.

[0017] Optionally, the dividing the first light emitting elements in the first target region into a plurality of units comprises: dividing the first light emitting elements in the first target region into a plurality of continuous units, each of the units comprising a plurality of first light emitting elements, and at least a plurality of first light emitting elements adjacent in the first direction and / or the second direction being in a same unit.

[0018] According to pixel distribution information of a second picture, the first light emitting elements in the first target region are divided into a plurality of units, the second picture comprising a plurality of pixels, the plurality of pixels in the second picture being divided into a plurality of second pixel groups according to color, the plurality of pixels in a same second pixel group being of the same color, and the pixels in different second pixel groups being of different colors, each of the first light emitting elements in the first target region corresponding to a pixel in the second picture, and each of the units corresponding to a second pixel group.

[0019] Optionally, the dividing the first light emitting elements in the first target region into a plurality of units comprises: dividing the first light emitting elements in the first target region into a plurality of continuous units, each of the units comprising a plurality of first light emitting elements, and at least a plurality of first light emitting elements adjacent in the first direction and / or the second direction being in a same unit.

[0020] According to optical characteristic parameters of the first light emitting elements in the first target region, the first light emitting elements in the first target region are divided into a plurality of units, the optical characteristic parameters of the first light emitting elements in a same unit belonging to a same parameter subinterval, and the optical characteristic parameters of the first light emitting elements in different units belonging to different parameter subintervals.

[0021] Optionally, the dividing the first light emitting elements in the first target region into a plurality of continuous units comprises: in a process of traversing the first light emitting elements in the first target region in an S-shaped, Z-shaped or spiral-shaped sequence, continuously M first light emitting units being taken as a unit.

[0022] Optionally, the dividing the first light emitting elements in the first target region into a plurality of continuous units comprises: in a process of traversing the first light emitting elements in the first target region in an S-shaped, Z-shaped or spiral-shaped sequence, continuously M first light emitting units being taken as a unit.

[0023] The first target region is divided into a plurality of two-dimensional arrays, and a first light emitting element in each array is taken as a unit;

[0024] Or,

[0025] The Q rows of first light emitting elements in the first target region are taken as a unit, and the Q rows of first light emitting elements are arranged continuously, or in the Q rows of first light emitting elements, at least one row of first light emitting elements is discontinuously arranged with other first light emitting elements in the same unit; wherein M is a positive integer.

[0026] Optionally, the number of first light emitting elements continuously picked up from each first region is less than the number of units contained in the first region; then the first picking order is used to indicate that the first light emitting elements are picked up in the following order: the jth unit is taken away from the ith first region among the plurality of first regions, the jth unit is taken away from the next first region of the ith first region, the ith first region and the next first region of the ith first region correspond to two adjacent first regions in the first target order; after the jth unit is taken away from each of the plurality of first regions, the j+1th unit is taken away from the ith first region, and then the j+1th unit is taken away from the next first region of the ith first region, the jth unit and the j+1th unit correspond to two adjacent units in the second target order; wherein i and j are integers, i is less than or equal to the number of first regions contained in the first substrate, and j is less than or equal to the number of units contained in the first region.

[0027] Optionally, the number of first light emitting elements continuously picked up from each first region is equal to the number of units contained in the first region; then the first picking order is used to indicate that the first light emitting elements are picked up in the following order: each unit in the ith first region is taken away from the ith first region in the plurality of first regions according to the second target order; each unit in the next first region of the ith first region is taken away from the next first region of the ith first region according to the second target order, the ith first region and the next first region of the ith first region correspond to any two adjacent first regions in the first target order; wherein i is an integer, and i is less than or equal to the number of first regions contained in the first substrate.

[0028] Optionally, the number of the first light emitting elements continuously picked up from each of the first regions is less than the number of the units contained in the first region; and the first picking sequence is used to indicate that the first light emitting elements are picked up in the following sequence: the jth unit is taken out from the ith first region, the jth unit is taken out from the next first region of the ith first region, the ith first region and the next first region of the ith first region correspond to two adjacent first regions in the first target sequence; after the jth unit is taken out from each of the first regions, the first regions are reordered to update the first target sequence; the j+1th unit is taken out from the ith first region, and then based on the updated first target sequence, the next first region of the ith first region is determined, the j+1th unit is taken out from the next first region of the ith first region, the jth unit and the j+1th unit correspond to two adjacent units in the second target sequence; wherein i and j are integers, i is less than or equal to the number of the first regions contained in the first substrate, and j is less than or equal to the number of the units contained in the first region.

[0029] Optionally, the second target sequence comprises sequentially picking up at least part of the first light emitting elements in each of the units in an S shape, a Z shape or a spiral shape.

[0030] Optionally, the determining the second target sequence based on the plurality of units comprises: dividing a plurality of first light emitting elements in a first unit into a plurality of sub-units, the first unit being any one of the plurality of units, each sub-unit comprising a plurality of first light emitting elements, and at least two first light emitting elements in the same sub-unit being arranged continuously in the first direction and / or the second direction; determining the second target sequence based on the plurality of sub-units, the second target sequence further being used to indicate that the first light emitting elements are sequentially picked up from the plurality of sub-units in an arrangement order or a random order between the plurality of sub-units.

[0031] Optionally, the dividing a plurality of first light emitting elements in a first unit into a plurality of sub-units comprises: in the process of traversing the plurality of first light emitting elements in the first unit in an S shape, a Z shape or a spiral shape, continuously N first light emitting elements are taken as a unit.

[0032] Or,

[0033] the first unit is divided into a plurality of two-dimensional arrays, and the first light emitting elements in each array are taken as a sub-unit; wherein N is a positive integer.

[0034] Optionally, the second target sequence is further used to indicate that all the first light emitting elements in each of the sub-units are sequentially picked up in an S shape, a Z shape or a spiral shape.

[0035] Optionally, the first target sequence comprises picking up the first light emitting elements from at least two first regions on the first substrate in an arrangement order or a random order of the at least two first regions, and the second target sequence comprises picking up the first light emitting elements from a same first region on the first substrate in an arrangement order or a random order of the first light emitting elements.

[0036] Optionally, the second target sequence comprises picking up at least part of the first light emitting elements from the same first region in an S shape, a Z shape or a spiral shape.

[0037] Optionally, the first regions are divided according to the first position information and optical characteristic parameters of the first light emitting elements on the first substrate; a number of the first light emitting elements picked up from a second target region on the first substrate is a first number, the first number is determined according to a set ratio and a number of third light emitting elements, the third light emitting elements and the first light emitting elements are used for a same target substrate, and the third light emitting elements and the first light emitting elements are used for emitting same or different colors of light, the second target region is one of the first regions on the first substrate.

[0038] Optionally, the first substrate data further comprises appearance data and / or optoelectronic information of the first light emitting elements, and before the first substrate is divided into a plurality of strip-shaped regions based on the first substrate data, the method further comprises determining unqualified first light emitting elements based on the appearance data and / or the optoelectronic information of the first light emitting elements.

[0039] Optionally, the first picking-up sequence is used to indicate picking up the first light emitting elements except the unqualified first light emitting elements.

[0040] Optionally, the method further comprises: obtaining second substrate data of a second substrate, the first substrate and the second substrate being used for jointly producing a same target substrate, the second substrate comprising a plurality of second light emitting elements, the second substrate data comprising second position information, the second position information being used for indicating positions of the plurality of second light emitting elements on the second substrate; dividing, according to a target rule, the first substrate into a plurality of second regions based on the second position information, each of the second regions having the plurality of second light emitting elements; and determining a second picking sequence based on the plurality of second regions, the second picking sequence being used for indicating picking the second light emitting elements according to a third target sequence and / or a fourth target sequence, the third target sequence comprising picking the second light emitting elements from at least two of the second regions on the second substrate in sequence, and the fourth target sequence comprising picking the second light emitting elements from a same one of the second regions on the second substrate in sequence.

[0041] Optionally, the method further comprises: receiving a first instruction, the first instruction being used for indicating a manner of determining the first target sequence and / or the second target sequence.

[0042] The determining the first picking sequence based on the plurality of first regions comprises: determining the first target sequence and / or the second target sequence according to the manner indicated by the first instruction based on the plurality of first regions, so as to determine the first picking sequence.

[0043] Optionally, the method further comprises: receiving a second instruction, the second instruction being used for indicating a manner of dividing the first substrate into the plurality of first regions.

[0044] The dividing, according to a target rule, the first substrate into a plurality of first regions based on the first position information comprises: dividing the first substrate into the plurality of first regions according to the manner indicated by the second instruction based on the first position information.

[0045] Optionally, the obtaining the first substrate data of the first substrate comprises: reading the first substrate data from a local memory.

[0046] Alternatively,

[0047] Receiving the first substrate data manually input by a staff.

[0048] Alternatively,

[0049] Receiving the first substrate data sent by a computer device.

[0050] In a second aspect, a method for picking up light emitting elements is also provided, comprising: obtaining first substrate data of a first substrate, the first substrate comprising a plurality of first light emitting elements, the first substrate being divided into a plurality of first regions, each of the first regions comprising a plurality of the first light emitting elements, the first substrate data comprising first position information, the first position information being indicative of positions of the plurality of first light emitting elements on the first substrate; picking up the first light emitting elements from the plurality of first regions of the first substrate according to a first picking up sequence, the first picking up sequence being indicative of picking up the first light emitting elements according to a first target sequence and / or a second target sequence, the first target sequence comprising picking up the first light emitting elements from at least two of the first regions on the first substrate in sequence, the second target sequence comprising picking up the first light emitting elements from a same one of the first regions on the first substrate in sequence.

[0051] Optionally, the first target sequence comprises picking up at least part of the first light emitting elements from each of the first regions in an S-shaped, Z-shaped or spiral-shaped manner according to an arrangement order or a random order of the plurality of first regions.

[0052] Optionally, the first target region is any one of the plurality of first regions, each of the units comprises a plurality of the first light emitting elements, and the second target sequence comprises picking up all of the first light emitting elements from each of the units in an S-shaped, Z-shaped or spiral-shaped manner according to an arrangement order or a random order of the plurality of units.

[0053] Optionally, the first unit is any one of the plurality of units, each of the sub-units comprises a plurality of the first light emitting elements,

[0054] the second target sequence comprises picking up all of the first light emitting elements from each of the sub-units in an S-shaped, Z-shaped or spiral-shaped manner according to an arrangement order or a random order of the plurality of sub-units.

[0055] In a third aspect, a method for transferring light emitting elements is also provided, comprising: obtaining a first picking up sequence, the first picking up sequence being determined by the method of the first aspect; obtaining a transfer sequence, the transfer sequence being indicative of a sequence for transferring the first light emitting elements to a target substrate; picking up the first light emitting elements from a first substrate according to the first picking up sequence by a chip transfer device, and transferring the picked up first light emitting elements to the target substrate according to the transfer sequence.

[0056] Optionally, the chip transferring device picks up the first light emitting elements through the transferring element, and the obtaining the transferring sequence comprises: obtaining position information of a plurality of arrangement points in the target substrate, the plurality of arrangement points in the target substrate are arranged in an array, each of the arrangement points is used for arranging a first light emitting element, and the position information of the arrangement points is used for indicating positions of the arrangement points in the target substrate; based on the position information of the plurality of arrangement points in the target substrate, the plurality of arrangement points in the target substrate are divided into a plurality of point groups, the plurality of point groups comprise at least one target point group, the target point group comprises a plurality of target arrangement points, and the arrangement points in each of the point groups are different; based on the position information of each of the target arrangement points in the target point group, a transferring sequence is determined, the transferring sequence comprises a moving path of the transferring element and a sequence in which each of the target arrangement points obtains the first light emitting element.

[0057] The first light emitting elements picked up are transferred to the target substrate according to the transferring sequence, which comprises: the transferring element transfers the first light emitting elements to the target arrangement points according to the moving path of the transferring element and the sequence in which each of the target arrangement points obtains the first light emitting element; and in the target point group, at least one of the target arrangement points is spaced apart from other target arrangement points in the target point group by at least one arrangement point in the first direction and / or the second direction.

[0058] Optionally, the method further comprises: obtaining a first photo of the first substrate; determining third position information of the plurality of first light emitting elements of the first substrate based on the first photo; and updating the first position information based on the third position information.

[0059] Optionally, the method further comprises: during the process of picking up the first light emitting elements from the first substrate according to the first picking sequence and transferring the picked first light emitting elements to the target substrate according to the transferring sequence, obtaining a second photo of the first substrate at a set time interval; determining fourth position information of the plurality of first light emitting elements of the first substrate based on the second photo; and updating the first position information based on the fourth position information.

[0060] Optionally, the method further comprises: after the transferring of the light emitting elements on the target substrate is completed, generating a first traceability file, the first traceability file comprising an identifier of the first substrate corresponding to the light emitting elements on the target substrate, position information of the light emitting elements on the target substrate on the corresponding first substrate, and photoelectric information of the light emitting elements on the target substrate.

[0061] Optionally, the method further comprises: generating a transfer scheme of the first plurality of light emitting elements on the first substrate based on the first picking order; and distributing the transfer scheme of the first plurality of light emitting elements on the first substrate to one or more chip transfer devices.

[0062] The fourth aspect also provides a device for determining a picking order of light emitting elements, comprising: a data obtaining module configured to obtain first substrate data of a first substrate, the first substrate comprising a plurality of first light emitting elements, the first substrate data comprising first position information, the first position information being used to indicate positions of the plurality of first light emitting elements on the first substrate; a region dividing module configured to divide the first substrate into a plurality of first regions based on the first position information according to a target rule, each of the first regions comprising a plurality of the first light emitting elements; and a picking order generating module configured to determine a first picking order based on the plurality of first regions, wherein the first picking order is used to indicate picking the first light emitting elements according to a first target order and / or a second target order, the first target order comprising picking the first light emitting elements from at least two of the first regions on the first substrate in sequence, and the second target order comprising picking the first light emitting elements from a same one of the first regions on the first substrate in sequence.

[0063] Optionally, the region dividing module is further configured to divide the first substrate into a plurality of first regions arranged along a first direction based on the first position information, each of the first regions being in a strip shape and a length direction of each of the first regions intersecting the first direction.

[0064] Optionally, the region dividing module is further configured to divide the first substrate into a plurality of first regions arranged along a first direction based on the first position information, each of the first regions being in a strip shape and a length direction of each of the first regions intersecting the first direction.

[0065] Optionally, the region dividing module is further configured to divide the first substrate into a plurality of first regions arranged along a first direction based on the first position information, each of the first regions being in a strip shape and a length direction of each of the first regions intersecting the first direction.

[0066] Optionally, the region dividing module is further configured to divide the first substrate into a plurality of first regions arranged along a first direction based on the first position information, each of the first regions being in a strip shape and a length direction of each of the first regions intersecting the first direction.

[0067] Optionally, the region dividing module is further configured to divide the first substrate into a plurality of first regions arranged along a first direction based on the first position information, each of the first regions being in a strip shape and a length direction of each of the first regions intersecting the first direction.

[0068] Optionally, the region dividing module is further configured to divide the first substrate into a plurality of first regions arranged along a first direction based on the first position information, each of the first regions being in a strip shape and a length direction of each of the first regions intersecting the first direction.

[0069] According to the first position information and optical characteristic parameters of the first light emitting elements on the first substrate, the first substrate is divided into a plurality of first regions, the optical characteristic parameters of the first light emitting elements in a same first region belong to a same parameter interval, and the optical characteristic parameters of the first light emitting elements in different first regions belong to different parameter intervals.

[0070] Optionally, the first picking sequence is used to indicate picking the first light emitting elements according to the second target sequence, the region division module is further used to divide the first light emitting elements in a first target region into a plurality of units, the first target region is any one of the plurality of first regions, each unit includes a plurality of first light emitting elements, and at least two first light emitting elements in a same unit are arranged continuously in a first direction and / or a second direction, the first direction is a row direction or a column direction, and the second direction intersects the first direction; based on the plurality of units, the second target sequence is determined, and the second target sequence is used to indicate picking the first light emitting elements from the plurality of units in turn according to an arrangement sequence or a random sequence between the plurality of units.

[0071] Optionally, the region division module is further used to divide the first light emitting elements in the first target region into a plurality of continuous units, each unit includes a plurality of first light emitting elements, and at least a plurality of first light emitting elements adjacent in a first direction and / or a second direction in a same unit exist;

[0072] Optionally, the region division module is further used to divide the first light emitting elements in the first target region into a plurality of continuous units, each unit includes a plurality of first light emitting elements, and at least a plurality of first light emitting elements adjacent in a first direction and / or a second direction in a same unit exist;

[0073] According to pixel distribution information of a second picture, the first light emitting elements in the first target region are divided into a plurality of units, the second picture includes a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to color, the colors of the plurality of pixels in a same second pixel group are the same, the colors of the pixels in different second pixel groups are different, each first light emitting element in the first target region corresponds to a pixel in the second picture, and each unit corresponds to one of the plurality of second pixel groups;

[0074] Optionally, the region division module is further used to divide the first light emitting elements in the first target region into a plurality of continuous units, each unit includes a plurality of first light emitting elements, and at least a plurality of first light emitting elements adjacent in a first direction and / or a second direction in a same unit exist;

[0075] According to the first position information and optical characteristic parameters of the first light emitting elements on the first substrate, the first substrate is divided into a plurality of first regions, the optical characteristic parameters of the first light emitting elements in a same first region belong to a same parameter interval, and the optical characteristic parameters of the first light emitting elements in different first regions belong to different parameter intervals.

[0076] Optionally, the region division module is further configured to, in the process of traversing the plurality of first light emitting elements in the first target region in the S-shaped, Z-shaped or spiral-shaped sequence, take a continuous M first light emitting elements as a unit.

[0077] Alternatively,

[0078] divide the first target region into a plurality of two-dimensional arrays, and take the first light emitting elements in each array as a unit.

[0079] Alternatively,

[0080] take Q rows of first light emitting elements in the first target region as a unit, the Q rows of first light emitting elements are continuously arranged, or among the Q rows of first light emitting elements, at least one row of first light emitting elements is discontinuously arranged with other first light emitting elements in the same unit; wherein M is a positive integer.

[0081] Optionally, the region division module is further configured to divide a plurality of first light emitting elements in a first unit into a plurality of sub-units, the first unit being any one of the plurality of units, each sub-unit including a plurality of first light emitting elements, and at least two first light emitting elements in the same sub-unit being continuously arranged in the first direction and / or the second direction; determine the second target sequence based on the plurality of sub-units, the second target sequence being further used to indicate that the first light emitting elements are sequentially picked from the plurality of sub-units in the arrangement order or random order between the plurality of sub-units.

[0082] Optionally, the region division module is further configured to, in the process of traversing the plurality of first light emitting elements in the first unit in the S-shaped, Z-shaped or spiral-shaped sequence, take a continuous N first light emitting elements as a unit.

[0083] Alternatively,

[0084] divide the first unit into a plurality of two-dimensional arrays, and take the first light emitting elements in each array as a sub-unit; wherein N is a positive integer.

[0085] Optionally, the first substrate data further includes appearance data and / or optoelectronic information of the plurality of first light emitting elements, and before the first substrate is divided into a plurality of strip-shaped regions based on the first substrate data, the data acquisition module is further configured to determine unqualified first light emitting elements based on the appearance data and / or optoelectronic information of the plurality of first light emitting elements.

[0086] Optionally, the data obtaining module is further configured to obtain second substrate data of a second substrate, the first substrate and the second substrate being used to jointly produce a same target substrate, the second substrate comprising a plurality of second light emitting elements, the second substrate data comprising second position information, the second position information being used to indicate positions of the plurality of second light emitting elements on the second substrate.

[0087] The region dividing module is further configured to divide the first substrate into a plurality of second regions according to a target rule based on the second position information, each of the second regions comprising the plurality of second light emitting elements.

[0088] The pick-up sequence generating module is further configured to determine a second pick-up sequence based on the plurality of second regions, the second pick-up sequence being used to indicate picking up the second light emitting elements according to a third target order and / or a fourth target order, the third target order comprising picking up the second light emitting elements from at least two of the plurality of second regions on the second substrate in sequence, the fourth target order comprising picking up the second light emitting elements from a same one of the plurality of second regions on the second substrate in sequence.

[0089] Optionally, the data obtaining module is further configured to receive a first instruction, the first instruction being used to indicate a manner of determining the first target order and / or the second target order; and the pick-up sequence generating module is further configured to determine the first target order and / or the second target order according to the first instruction based on the plurality of first regions, so as to determine the first pick-up sequence.

[0090] Optionally, the data obtaining module is further configured to receive a second instruction, the second instruction being used to indicate a manner of dividing the first substrate into the plurality of first regions; and the pick-up sequence generating module is further configured to divide the first substrate into the plurality of first regions according to the second instruction based on the first position information.

[0091] Optionally, the data obtaining module is further configured to read the first substrate data from a local memory, or receive the first substrate data manually input by a worker, or receive the first substrate data sent by a computer device.

[0092] Optionally, the pick-up sequence generating module is further configured to generate a transfer scheme of the plurality of first light emitting elements on the first substrate based on the first pick-up sequence; and the apparatus further comprises a distribution module, the distribution module being configured to distribute the transfer scheme of the plurality of first light emitting elements on the first substrate to one or more chip transfer devices.

[0093] In a fifth aspect, a picking device of light emitting elements is also provided, and the picking device comprises: an obtaining module configured to obtain first substrate data of a first substrate, the first substrate comprising a plurality of first light emitting elements, the first substrate being divided into a plurality of first regions, each of the first regions comprising a plurality of the first light emitting elements, the first substrate data comprising first position information, the first position information being used to indicate positions of the plurality of the first light emitting elements on the first substrate; and a picking module configured to pick the first light emitting elements from the plurality of the first regions of the first substrate according to a first picking sequence, the first picking sequence being used to indicate that the first light emitting elements are picked according to a first target sequence and / or a second target sequence, the first target sequence comprising sequentially picking the first light emitting elements from at least two of the first regions on the first substrate, and the second target sequence comprising sequentially picking the first light emitting elements from the same first region on the first substrate.

[0094] In a sixth aspect, a transferring device of light emitting elements is also provided, and the device comprises: a first obtaining module configured to obtain a first picking sequence, the first picking sequence being determined by using the method of the first aspect; a second obtaining module configured to obtain a transferring sequence, the transferring sequence being used to indicate a sequence of transferring the first light emitting elements to a target substrate; and a control module configured to pick the first light emitting elements from a first substrate according to the first picking sequence by using a chip transferring apparatus, and to transfer the picked first light emitting elements to the target substrate according to the transferring sequence.

[0095] Optionally, the chip transferring apparatus picks the first light emitting elements by using a transferring element, the second obtaining module is further configured to obtain position information of a plurality of arrangement points in the target substrate, the plurality of arrangement points in the target substrate are arranged in an array, each of the arrangement points is used to arrange one of the first light emitting elements, and the position information of the arrangement points is used to indicate positions of the arrangement points in the target substrate; based on the position information of the plurality of arrangement points in the target substrate, the plurality of arrangement points in the target substrate are divided into a plurality of point groups, the plurality of point groups comprise at least one target point group, the target point group comprises a plurality of target arrangement points, and the arrangement points in each of the point groups are different; based on the position information of each of the target arrangement points in the target point group, a transferring sequence is determined, the transferring sequence comprises a moving path of the transferring element and a sequence in which each of the target arrangement points obtains the first light emitting elements.

[0096] The control module is further configured to transfer the first light emitting elements to the target arrangement points by using the transferring element according to the moving path of the transferring element and the sequence in which each of the target arrangement points obtains the first light emitting elements.

[0097] Optionally, the first obtaining module is further configured to obtain a first photo of the first substrate. The light emitting element transferring apparatus further includes an updating module configured to determine third position information of the plurality of first light emitting elements on the first substrate based on the first photo, and update the first position information based on the third position information.

[0098] Optionally, the first obtaining module is further configured to obtain a second photo of the first substrate at a set time interval during the process of picking up the first light emitting elements from the first substrate according to the first picking up sequence and transferring the picked up first light emitting elements to the target substrate according to the transferring sequence, and the updating module is configured to determine fourth position information of the plurality of first light emitting elements on the first substrate based on the second photo, and update the first position information based on the fourth position information.

[0099] Optionally, the light emitting element transferring apparatus further includes a generating module configured to generate a first traceability file after the transferring of the light emitting elements on the target substrate is completed, the first traceability file including an identification of the first substrate corresponding to the light emitting elements on the target substrate, position information of the light emitting elements on the target substrate on the corresponding first substrate, and photoelectric information of the light emitting elements on the target substrate.

[0100] In a seventh aspect, a computer device is provided, including a memory and a processor, at least one computer program is stored in the memory, and the at least one computer program is loaded and executed by the processor, so as to execute the method of the first aspect, the second aspect or the third aspect described in the above embodiments.

[0101] In an eighth aspect, a computer readable storage medium is provided, at least one computer program is stored in the computer readable storage medium, and the at least one computer program is loaded and executed by a processor, so as to execute the method of the first aspect, the second aspect or the third aspect described in the above embodiments.

[0102] In a ninth aspect, a computer program product is provided, including a computer program / instruction, and the computer program / instruction is executed by a processor to implement the method of the first aspect.

[0103] The technical scheme provided by the embodiments of the present disclosure has at least the following beneficial effects:

[0104] In the embodiments of the present disclosure, since the first region is divided based on the first position information, the first light emitting element picking-up sequence is actually a random sequence determined based on the position information, and the randomness is strong, so the mixing effect is good. Therefore, when the first light emitting element is picked up according to the first light emitting element picking-up sequence, the optical characteristic parameter of the first light emitting element has less influence on the display module prepared, thereby reducing the difference in optical characteristic parameters between different display modules, and making the display effect of the prepared display module more uniform. Moreover, since the first region is divided based on the first position information, and part of the first light emitting element is not screened out based on the wavelength information of the first light emitting element, but the first light emitting element with a wavelength outside the wavelength screening range is excluded before determining the first light emitting element picking-up sequence, thereby expanding the use range of the first light emitting element, thereby improving the utilization rate of the first light emitting element. BRIEF DESCRIPTION OF DRAWINGS

[0105] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art without creative labor.

[0106] FIG. 1 is a structural schematic diagram of a wafer;

[0107] FIG. 2 is a flowchart of a method for determining a light emitting element picking-up sequence according to an embodiment of the present disclosure;

[0108] FIG. 3 is a flowchart of another method for determining a light emitting element picking-up sequence according to an embodiment of the present disclosure;

[0109] FIG. 4 shows a first picking-up sequence obtained after sorting a plurality of first regions;

[0110] FIG. 5 is a schematic diagram of a first substrate divided into a plurality of first regions according to a pixel partition division manner;

[0111] FIG. 6 is a schematic diagram of a first substrate divided into a plurality of first regions according to an optical characteristic parameter partition division manner;

[0112] FIG. 7 is a schematic diagram of a picking-up sequence of a plurality of first light emitting elements in a first region;

[0113] FIG. 8 shows a schematic diagram of a first light emitting element in a first target region divided into a plurality of units according to an S-shaped unit division manner;

[0114] FIG. 9 shows a schematic diagram of a first light emitting element in a first target region divided into a plurality of units according to an array type unit division manner;

[0115] FIG. 10 is a flowchart of picking up the first light emitting elements in a row or column unit division manner and a schematic diagram of dividing the first light emitting elements in the unit into a plurality of sub-units in an S-shaped and two-dimensional array division manner;

[0116] FIG. 11 is a schematic diagram of different first regions obtained according to a first parameter interval and a second parameter interval;

[0117] FIG. 12 is a flowchart of a method for determining a picking up order of the light emitting elements according to another example embodiment of the present disclosure;

[0118] FIG. 13 is a flowchart of a method for picking up the light emitting elements according to an example embodiment of the present disclosure;

[0119] FIG. 14 is a flowchart of a method for transferring the light emitting elements according to an example embodiment of the present disclosure;

[0120] FIG. 15 is a schematic diagram of transferring the first light emitting elements in a first mode and a second mode of a needle type die bonder;

[0121] FIG. 16 is a flowchart of a method for transferring the light emitting elements according to another example embodiment of the present disclosure;

[0122] FIG. 17 is a schematic diagram of updating the first position information based on third position information;

[0123] FIG. 18 is a structural schematic diagram of a device for determining a picking up order of the light emitting elements according to an example embodiment of the present disclosure;

[0124] FIG. 19 is a structural schematic diagram of a device for picking up the light emitting elements according to an example embodiment of the present disclosure;

[0125] FIG. 20 is a structural schematic diagram of a device for transferring the light emitting elements according to an example embodiment of the present disclosure;

[0126] FIG. 21 is a structural schematic diagram of a computer device according to an example embodiment of the present disclosure. DETAILED DESCRIPTION

[0127] Unless otherwise defined, technical terms or scientific terms used herein shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first", "second", "third" and similar terms used herein do not denote any order, quantity, or importance, but are used to distinguish one element from another. Also, the terms "a" or "an" do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced items. The terms "including", "comprising", "consisting" and similar terms are used synonymously to refer to a combination of elements that is encompassed by the term. The terms "upper", "lower", "left", "right" and similar terms are used to denote relative positions only and that the absolute position of an object being described can change. A and / or B means that there are three cases: A, B, and A and B.

[0128] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the embodiments of the present disclosure will be further described in detail below with reference to the drawings.

[0129] In order to facilitate understanding of the embodiments of the present disclosure, the wafer will be briefly introduced first.

[0130] FIG. 1 is a schematic diagram of a structure of a wafer. As shown in FIG. 1, a wafer 100 includes a plurality of light emitting elements a, which are arranged in an array. It should be noted that the number of light emitting elements a in FIG. 1 is only an example, and the number of light emitting elements a that can be formed on a wafer 100 is determined by actual production needs and production capacity. For example, about 500k-650k light emitting elements a can be formed on a wafer 100.

[0131] Depending on the preparation process of the light emitting elements, the wavelengths of the plurality of light emitting elements formed on the same wafer are different. Generally, the optical characteristic parameters (such as wavelength, brightness, etc.) of the plurality of light emitting elements on the same wafer are randomly distributed on the wafer, and some optical characteristic parameters of the light emitting elements in a certain region may be highly close, that is, the optical characteristic parameters of the light emitting elements on the wafer may be regionally concentrated.

[0132] In this case, if the light emitting elements are picked up in the order of their arrangement on the wafer, multiple light emitting elements with similar optical characteristic parameters may be picked up in succession, and when display modules are manufactured based on these light emitting elements (for example, the light emitting elements are directly transferred to product substrates in the order of picking up, and display modules are manufactured based on the product substrates), the optical characteristic parameters of the light emitting elements in a certain area of the manufactured display modules may be too concentrated, causing the display effect of the area to be significantly different from other areas (for example, regional color difference occurs when displaying), and subsequent correction processes cannot completely eliminate such differences. In order to avoid this situation, it is necessary to mix the light emitting elements during the manufacturing of the display modules, so that there is no area in the display modules where the optical characteristic parameters of the light emitting elements are too concentrated.

[0133] There are various ways to mix the light emitting elements, for example, mixing the light emitting elements during the picking up of the light emitting elements. Mixing the light emitting elements during the picking up of the light emitting elements means that the order of taking the light emitting elements from the first substrate is disturbed according to certain rules.

[0134] Optionally, the light emitting element a is a light emitting diode, for example, a Mini (Mini) -LED (Light-Emitting Diode, Light Emitting Diode) or Micro (Micro) -LED, etc., but not limited thereto.

[0135] FIG. 2 shows a flowchart of a method for determining the picking up order of the light emitting elements according to an example embodiment of the present disclosure, which can be executed by a computer device, as shown in FIG. 2, the method comprises:

[0136] In step 201, first substrate data of a first substrate is obtained.

[0137] The first substrate comprises a plurality of first light emitting elements. In one possible implementation, the first substrate is an original substrate. In another possible implementation, the first substrate is an intermediate substrate. The original substrate is used to manufacture light emitting elements and can be a substrate in a wafer. The intermediate substrate is used to temporarily or temporarily carry light emitting elements, and the light emitting elements carried by the intermediate substrate can be transferred from the wafer to the intermediate substrate.

[0138] Optionally, the first substrate can be a flexible substrate or a rigid substrate.

[0139] The first substrate data comprises first position information, and the first position information is used to indicate the positions of the plurality of first light emitting elements on the first substrate.

[0140] Optionally, the first position information comprises coordinate information of each first light emitting element on the first substrate, and the coordinate information comprises a row coordinate and a column coordinate of the first light emitting element. The row coordinate of the first light emitting element is the row number of the first light emitting element on the first substrate, and the column coordinate of the first light emitting element is the column number of the first light emitting element on the first substrate.

[0141] In step 202, based on the first position information, the first substrate is divided into a plurality of first regions according to a target rule.

[0142] There are a plurality of first light emitting elements in each first region. The target rule can be set according to actual needs. When the rules are different, the shapes of the first regions obtained by division are different.

[0143] Optionally, the shape of the first region can be regular, such as a rectangle, etc.; or, the shape of the first region can be irregular.

[0144] In step 203, based on the plurality of first regions, a first picking sequence is determined.

[0145] The first picking sequence is used to indicate picking the first light emitting elements according to a first target sequence and / or a second target sequence. The first target sequence comprises sequentially picking the first light emitting elements from at least two first regions on the first substrate, and the second target sequence comprises sequentially picking the first light emitting elements from the same first region on the first substrate.

[0146] That is, in the embodiment of the present disclosure, there are three cases of the first picking sequence:

[0147] Firstly, the first picking sequence indicates picking the first light emitting elements from only one first region, that is, the first picking sequence is used to indicate picking the first light emitting elements according to the second target sequence. For example, for a product substrate, only picking the first light emitting elements from one first region can meet the requirements of the product substrate on the first light emitting elements. Here, the requirements at least include quantity requirements. Optionally, the requirements can also include requirements of optical characteristic parameters.

[0148] Secondly, the first picking sequence indicates picking the first light emitting elements from at least two first regions of the first substrate, but does not limit the sequence of picking the first light emitting elements in each first region, that is, the first picking sequence is used to indicate picking the first light emitting elements according to the first target sequence. For example, for a product substrate, only picking the first light emitting elements from one first region can meet the requirements of the product substrate on the first light emitting elements. Here, the requirements include quantity requirements and / or requirements of optical characteristic parameters.

[0149] The third, the first picking order indicates picking the first light emitting element from at least two first regions of the first substrate, and also indicates the order of picking the first light emitting element in each first region, that is, the first picking order is used to indicate picking the first light emitting element in the first target order and the second target order. For example, the distribution of the optical characteristic parameters of the first light emitting elements in the first substrate is too concentrated, and there may be a case that the optical characteristic parameters of the first light emitting elements in a certain first region are all close. Therefore, for a product substrate, the first light emitting elements need to be picked from multiple first regions, and cannot be picked from only one first region.

[0150] Optionally, the first target order comprises sequentially picking the first light emitting element from at least two first regions of the multiple first regions on the first substrate in the arrangement order of the at least two first regions or in a random order, and the second target order comprises sequentially picking the first light emitting element from the same first region on the first substrate in the arrangement order of the first light emitting element or in a random order.

[0151] In the embodiment of the present disclosure, since the first regions are divided based on the first position information, the first light emitting element picking order is actually a random order determined based on the position information, and the randomness is strong, so the mixing effect is good. Therefore, when the first light emitting elements are picked according to the first light emitting element picking order, the optical characteristic parameters of the first light emitting elements have less influence on the display module prepared, thereby reducing the difference in optical characteristic parameters between different display modules and making the display effect of the display module prepared more uniform.

[0152] In addition, since the first regions are divided based on the first position information, and part of the first light emitting elements are not selected based on the wavelength information of the first light emitting elements, and the first light emitting element picking order is determined after excluding the first light emitting elements whose wavelengths are outside the wavelength selection range, the use range of the first light emitting elements can be expanded, thereby improving the utilization rate of the first light emitting elements.

[0153] FIG. 3 shows a flowchart of a method for determining a light emitting element picking order provided by another exemplary embodiment of the present disclosure, which can be executed by a computer device, as shown in FIG. 3, the method comprises:

[0154] In step 301, first substrate data of a first substrate is obtained.

[0155] The related content of the first substrate and the first substrate data is described above in step 201, and is omitted here.

[0156] Optionally, the first position information can be obtained by testing. For example, the first substrate can be photographed, and then a coordinate system is established based on the photographed photo and the coordinate information of each first light emitting element is determined, so as to obtain the first position information.

[0157] Optionally, the first substrate data further comprises appearance data and / or optical characteristic parameters of the plurality of first light emitting elements. In this case, the appearance data and / or optical characteristic parameters of the plurality of first light emitting elements can be provided by the manufacturer of the first substrate, or the appearance data and / or optical characteristic parameters of the plurality of first light emitting elements are obtained by testing the plurality of light emitting elements. For example, the appearance data can be obtained by AOI (Automatically Optical Inspection) testing of the plurality of light emitting elements, and the optical characteristic parameters can be obtained by optical characteristic testing of the plurality of light emitting elements.

[0158] The appearance data of the first light emitting element comprises one or more of electrode surface data and light emitting area surface data of the first light emitting element. The electrode surface data comprises data such as whether the electrode surface is contaminated, whether the electrode surface has protruding points, etc. that affect the performance of the electrode. The light emitting area surface data comprises data such as whether the light emitting area surface has needle marks, whether the light emitting area surface is oxidized or peeled off, etc. that affect the light emitting effect of the light emitting area. The optical characteristic parameters of the first light emitting element comprise one or more of brightness, wavelength, color tolerance and color coordinates of the first light emitting element.

[0159] In this way, the first position information and the appearance data and / or optical characteristic parameters of the plurality of first light emitting elements can be obtained, and then the first substrate data can be obtained. After obtaining the first substrate data, the first substrate data of the first substrate can be obtained in the following three ways:

[0160] Firstly, the first substrate data is pre-stored in a local storage, and the first substrate data is read from the local storage.

[0161] Secondly, the first substrate data input by a worker is received.

[0162] Thirdly, the first substrate data is received from a computer device, such as a cloud server.

[0163] In step 302, based on the appearance data and / or optical characteristic parameters of the plurality of first light emitting elements, the unqualified first light emitting elements are determined.

[0164] In one possible implementation, in addition to the first position information, the first substrate data further comprises appearance data of the plurality of first light emitting elements, and the step 302 comprises: based on the appearance data of the plurality of first light emitting elements, determining the first light emitting elements with unqualified appearance data.

[0165] In another possible implementation, the first substrate data further comprises optical characteristic parameters of the plurality of first light emitting elements in addition to the first position information, and the step 302 comprises: determining a first light emitting element with unqualified optical characteristic parameters based on the optical characteristic parameters of the plurality of first light emitting elements.

[0166] In yet another possible implementation, the first substrate data further comprises appearance data and optical characteristic parameters of the plurality of first light emitting elements in addition to the first position information, and the step 302 comprises: determining a first light emitting element with unqualified appearance data and determining a first light emitting element with unqualified optical characteristic parameters based on the appearance data and the optical characteristic parameters of the plurality of first light emitting elements.

[0167] Here, the conditions for unqualified appearance data include that the electrode surface contamination area is greater than a set contamination area, the electrode surface protrusion point volume is greater than a set protrusion point volume, the light emitting area surface needle mark number is greater than a set needle mark number, and the light emitting area surface has oxidation or peeling, etc. The appearance information of the first light emitting element is unqualified when at least one of the above conditions is met.

[0168] The conditions for unqualified optical characteristic parameters include, but are not limited to, that the brightness of a certain first light emitting element is outside a set brightness qualified range, or the wavelength of the first light emitting element is outside a set wavelength qualified range, or the color tolerance of the first light emitting element is outside a set color tolerance qualified range, or the color coordinates of the first light emitting element are outside a set color coordinates qualified range.

[0169] Optionally, the optical characteristic parameters further include the operating voltage and the operating current of the first light emitting element. In this case, the conditions for unqualified optical characteristic parameters include, but are not limited to, that the operating voltage exceeds a set voltage threshold, or the operating current exceeds a set current threshold, etc.

[0170] The optical characteristic parameters of the first light emitting element are unqualified when at least one of the above conditions is met.

[0171] The first light emitting element with unqualified appearance and / or unqualified optical characteristic parameters cannot be used to manufacture a display module, and therefore it is necessary to determine the first light emitting element with unqualified appearance and / or unqualified optical characteristic parameters in advance. The determined first light emitting element with unqualified appearance and / or unqualified optical characteristic parameters is also called an NG (Not Good) light emitting element.

[0172] In a possible implementation, the unqualified first light emitting elements can be marked so as to identify the unqualified first light emitting elements in the subsequent process of picking up the light emitting elements, and avoid using these first light emitting elements to manufacture display modules. Here, marking the unqualified first light emitting elements refers to storing the marks of the NG chips in the first substrate data.

[0173] Exemplarily, after determining the NG light emitting elements, all the NG chips can be excluded when planning the first picking-up sequence subsequently, that is, the first picking-up sequence is used to indicate picking up the first light emitting elements except the unqualified first light emitting elements.

[0174] In this way, when the subsequent chip transfer device picks up the plurality of first light emitting elements on the first substrate based on the first picking-up sequence, the chip transfer device can directly bypass the positions where the NG chips are located without first passing through the positions where the NG chips are located and then skipping the NG chips, thereby reducing the length of the path required for the chip transfer device to move on the first substrate and improving the efficiency of picking up the first light emitting elements.

[0175] In some embodiments, the NG chips can also not be excluded when planning the first picking-up sequence, but the NG chips with marks can be skipped in the process of picking up the first light emitting elements. In this way, it can also be ensured that all the picked first light emitting elements are qualified.

[0176] In step 303, the first substrate is divided into a plurality of first regions according to a target rule based on the first position information.

[0177] A plurality of first light emitting elements exist in each first region.

[0178] Optionally, the zoning rule includes strip zoning, array zoning, pixel zoning, and optical feature parameter zoning, etc. The target rule can be any of these zoning rules, which can be selected as needed. The shapes of the first regions formed by different zoning rules are different. Optionally, the shape of the first region can be regular or irregular.

[0179] The names of the above four implementation manners are only illustrative, and the embodiments of the present disclosure are not limited thereto.

[0180] Strip zoning

[0181] Optionally, the strip zoning includes: dividing the first substrate into a plurality of first regions arranged along a first direction based on the first position information. Each first region is in a strip shape, and the length direction of each first region intersects the first direction.

[0182] Optionally, the first direction is the row direction or the column direction of the plurality of first light emitting elements on the first substrate.

[0183] Exemplarily, the first direction is the row direction, and the length direction of the first region is the column direction or the diagonal direction. Alternatively, the first direction is the column direction, and the length direction of the first region is the row direction or the diagonal direction. The diagonal direction intersects with the row direction or the column direction.

[0184] The following is described by way of example with the first direction being the column direction and the length direction of the first region being the row direction.

[0185] Optionally, the number of the plurality of first regions in the first substrate is greater than 1.

[0186] Optionally, the number of the first regions is greater than 1 and less than 40. For example, the first substrate can be divided into 10 first regions, 20 first regions, 30 first regions, 35 first regions, or 40 first regions, etc.

[0187] Generally, the more the number of the first regions on the first substrate, the more thorough the mixing of the first light emitting elements on the first substrate when the first light emitting elements are picked up from the first substrate according to the first picking order. However, the number of the first regions should not be too large. If the number of the first regions is too large, the number of the first light emitting elements in each first region is small, and the number of the first light emitting elements picked up from a single first region continuously according to the first light emitting element picking order is small, which leads to an increase in the total number of times of picking up the first light emitting elements continuously from the first substrate, and reduces the efficiency of picking up the first light emitting elements. Therefore, the number of the first regions on the first substrate is greater than or equal to 2 and less than or equal to 35, which can mix the first light emitting elements well and does not reduce the efficiency of picking up the first light emitting elements.

[0188] Optionally, each first region includes a plurality of rows of first light emitting elements. Here, a row of first light emitting elements refers to a plurality of first light emitting elements arranged along the length direction of the first region. For example, when the length direction of the first region is the row direction, a row of first light emitting elements is a row of first light emitting elements.

[0189] In some examples, the number of rows of first light emitting elements in different first regions can be the same, so as to facilitate unified planning of the first picking order.

[0190] In other examples, the number of rows of first light emitting elements in at least some first regions can be different. If the number of rows of first light emitting elements in each first region is different, the plurality of first light emitting elements in the first substrate can be mixed more thoroughly during picking up.

[0191] For example, the number of rows of the first light emitting elements on the first substrate can not be divisible by the number of the first regions, in which case the number of rows of the first light emitting elements in at least one of the first regions is different from the number of rows of the first light emitting elements in the other first regions. In implementation, the number of rows of the first light emitting elements on the first substrate can be divided by the number of the first regions to obtain a quotient and a remainder, and the number of rows corresponding to the remainder can be taken as the number of rows of the first light emitting elements in one of the first regions, and the number of rows corresponding to the quotient can be taken as the number of rows of the first light emitting elements in the other first regions. For another example, the plurality of first regions can be divided into a plurality of parts, each part including at least one first region, the first regions in different parts corresponding to different numbers of rows, and the first regions in the same part corresponding to the same number of rows.

[0192] For example, when the first light emitting elements are 0407 size light emitting elements, the number of rows of the first light emitting elements in each of the first regions can be in the range of 14-290, such as 14, 30, 70, 90, 100, 200 or 290, etc. The 0407 size is a common size model of light emitting elements, and is usually used to indicate a light emitting element with a size of 90±25 μm x 175±25 μm.

[0193] FIG. 4 is a schematic diagram of a bar-shaped partition. As shown in FIG. 4, the first substrate is divided into 12 first regions arranged along a first direction y1, and the length direction of the first regions is a row direction x1.

[0194] Array partition

[0195] Optionally, the array partition includes: based on the first position information, dividing the first substrate into a plurality of first regions arranged in a two-dimensional array. Here, the two-dimensional array arrangement means that the number of rows and the number of columns are both greater than 1.

[0196] Optionally, each of the first regions includes first light emitting elements arranged in an array.

[0197] When the bar-shaped partition or the array partition is adopted, the partition manner is relatively simple, and implementation is relatively easy.

[0198] Pixel partition

[0199] Based on the first position information and the pixel distribution information of the first picture, the first substrate is divided into a plurality of first regions.

[0200] The first picture includes a plurality of pixels, the plurality of pixels in the first picture are divided into a plurality of first pixel groups according to color, the colors of the plurality of pixels in the same first pixel group are the same, the colors of the pixels in different first pixel groups are different, each of the first light emitting elements on the first substrate corresponds to a pixel, and each of the first regions corresponds to one of the plurality of first pixel groups.

[0201] Optionally, the first picture is randomly selected from a set of pixel pictures pre-stored in a local storage. In the set of pixel pictures, each pixel picture has a set of pixels of multiple colors.

[0202] Fig. 5 is a schematic diagram of a first substrate divided into a plurality of first regions according to a pixel partitioning manner. Fig. 5(a) is a schematic diagram of a first picture. In Fig. 5(a), the same pattern of filled squares represents pixels of the same color. The first picture includes 6x8 pixels, and has a total of 6 different colors of pixels, i.e., includes 6 first pixel groups.

[0203] Fig. 5(b) is a schematic diagram of the plurality of first regions in the pixel partitioning. In Fig. 5(b), the same number of boxes represents first light emitting elements in the same first region (the same number of boxes corresponds to the same color of pixels in Fig. 5(a)).

[0204] The number of pixels in the first picture needs to be greater than or equal to the number of first light emitting elements in the first substrate. If the number of pixels in the first picture is less than the number of first light emitting elements in the first substrate, there will be some first light emitting elements in the first substrate without corresponding pixels.

[0205] Optionally, the first picture includes a plurality of rows of pixels, the number of pixels in each row is the same, and the number of pixels in each row is greater than or equal to the number of first light emitting elements in any row in the first substrate. In this way, the number of pixels in the first picture is greater than or equal to the number of first light emitting elements in the first substrate, so that each first light emitting element in the first substrate can have a pixel corresponding thereto. In this case, the method further includes cropping the pixels in the first picture that do not correspond to the first light emitting elements, so as to facilitate the pixel partitioning.

[0206] When the pixel partitioning is used, because the pixels of different colors in the first picture are randomly distributed, the plurality of first regions obtained finally are also random.

[0207] Optical characteristic parameter partitioning

[0208] Optionally, the optical characteristic parameter partitioning includes: dividing the first substrate into a plurality of first regions according to the first position information and optical characteristic parameters of the plurality of first light emitting elements on the first substrate.

[0209] The optical characteristic parameters of the first light emitting elements in the same first region belong to the same parameter interval, and the optical characteristic parameters of the first light emitting elements in different first regions belong to different parameter intervals.

[0210] Here, the parameter interval can be determined based on a certain optical characteristic parameter of the plurality of first light emitting elements in the first substrate.

[0211] Optionally, the optical characteristic parameter includes wavelength, brightness, color tolerance, etc.

[0212] Optionally, the optical characteristic parameter can be a parameter or a combination of at least two parameters.

[0213] Taking the wavelength as an example, the wavelength can be divided into several wavelength intervals based on the maximum and minimum values of the wavelengths of the plurality of first light emitting elements in the first substrate. The first light emitting elements in the same wavelength interval are in the same first region.

[0214] FIG. 6 is a schematic diagram of the first substrate divided into a plurality of first regions according to the optical characteristic parameter division manner. Exemplarily, the plurality of wavelength intervals are 620nm-622nm, 622nm-624nm, 624nm-626nm, and 622nm-624nm in sequence. The boxes with the same filling pattern represent the first light emitting elements in the same wavelength interval, i.e., the boxes with the same filling pattern represent a first region.

[0215] When the optical characteristic parameter is brightness, similar to the case where the optical characteristic parameter is wavelength, the optical characteristic parameter division includes dividing the brightness into several brightness intervals based on the maximum and minimum values of the brightness of the plurality of first light emitting elements in the first substrate. The first light emitting elements in the same brightness interval are in the same first region.

[0216] When the optical characteristic parameter is color tolerance, similar to the case where the optical characteristic parameter is wavelength, the optical characteristic parameter division includes dividing the color tolerance into several color tolerance intervals based on the maximum and minimum values of the color tolerance of the plurality of first light emitting elements in the first substrate. The first light emitting elements in the same color tolerance interval are in the same first region.

[0217] When the optical parameter is a combination of at least two parameters, optionally, the plurality of first regions are divided according to the first position information and the optical characteristic parameters of the plurality of first light emitting elements on the first substrate. The number of the first light emitting elements picked up from a second target region in the first substrate is a first number, the first number is determined according to a set ratio and the number of third light emitting elements, the third light emitting elements and the first light emitting elements are used in the same target substrate, and the third light emitting elements and the first light emitting elements are used to emit the same or different colors of light, and the second target region is a first region in the first substrate.

[0218] Optionally, the first plurality of regions are divided according to the first position information and optical characteristic parameters of the first plurality of light emitting elements on the first substrate, including: dividing the first substrate into a plurality of first regions according to the first position information and optical characteristic parameters of the first plurality of light emitting elements on the first substrate, the first optical characteristic parameters of the first plurality of light emitting elements in a same first region belonging to a same first parameter interval and the second optical characteristic parameters belonging to a same second parameter interval, and the optical characteristic parameters of the first light emitting elements in different first regions belonging to different first parameter intervals and / or different second parameter intervals.

[0219] Here, the first optical characteristic parameter and the second optical characteristic parameter are different. Exemplarily, the first optical characteristic parameter is wavelength, and the second optical characteristic parameter is brightness, but is not limited thereto.

[0220] The first parameter interval and the second parameter interval are similar to the parameter intervals in the aforementioned optical characteristic parameter division, and detailed description is omitted here.

[0221] FIG. 11 is a schematic diagram of different first regions obtained according to the first parameter interval and the second parameter interval. As shown in FIG. 11, in part (a) of FIG. 11, the first optical characteristic parameter is brightness, and the second optical characteristic parameter is wavelength. One B-BIN represents one first region, and the first region B-BIN represents that the light emitted by the first light emitting elements in the first region is blue.

[0222] It can be seen that the wavelengths of the first light emitting elements in the first region B-BIN1 and the first region B-BIN2 belong to different wavelength intervals, but the brightness of the first light emitting elements in the first region B-BIN1 and the first region B-BIN2 belong to the same brightness interval.

[0223] The brightness of the first light emitting elements in the first region B-BIN1 and the first region B-BIN6 belong to different brightness intervals, but the wavelengths of the first light emitting elements in the first region B-BIN1 and the first region B-BIN6 belong to the same wavelength interval.

[0224] The brightness of the first light emitting elements in the first region B-BIN1 and the first region B-BIN7 belong to different brightness intervals, and the wavelengths of the first light emitting elements in the first region B-BIN1 and the first region B-BIN7 also belong to different wavelength intervals.

[0225] When the third light emitting elements and the first light emitting elements are used to emit different colors of light, as shown in the part (b) of FIG. 11, in which the first optical characteristic parameter is brightness and the second optical characteristic parameter is wavelength, a G-BIN represents a region in which the third light emitting elements that emit green light are located. The first number is determined according to the set ratio and the number of the third light emitting elements, i.e., the first number is determined according to the number of the third light emitting elements to be picked up in a G-BIN corresponding to the second target region and the set ratio.

[0226] When the third light emitting elements and the first light emitting elements are used to emit the same color of light, for example, in the part (a) of FIG. 11, the substrate in which the third light emitting elements are located can also be divided into 25 BINs, which can be the same as or different from the 25 BINs in the part (a) of FIG. 11. Then the first number is determined according to the set ratio and the number of the third light emitting elements, i.e., the first number is determined according to the number of the third light emitting elements to be picked up in a BIN of the substrate in which the third light emitting elements are located and the set ratio.

[0227] That is, the first light emitting elements in the second target region correspond to a BIN, the third light emitting elements correspond to a BIN, and the set ratio is used to indicate the ratio of the number of the first light emitting elements picked up in the BIN corresponding to the second target region to the number of the first light emitting elements picked up in the BIN corresponding to the third light emitting elements, which can be 1, for example.

[0228] Alternatively, the first light emitting elements and the third light emitting elements can be on the same first substrate, or the first light emitting elements and the third light emitting elements can be on different first substrates, which includes the following four cases:

[0229] The first case is that the first light emitting elements and the third light emitting elements are used to emit the same color of light, and the first light emitting elements and the third light emitting elements can be on the same first substrate.

[0230] When the first light emitting elements and the third light emitting elements are on the same first substrate, the first light emitting elements and the second light emitting elements are respectively in different BINs, i.e., the first light emitting elements and the second light emitting elements are respectively in different first regions. At this time, the set ratio indicates the number of the third light emitting elements and the first number, which can be the same, positively correlated or negatively correlated, and the first light emitting elements and the third light emitting elements respectively belong to different first regions.

[0231] The second case is that the first light emitting elements and the third light emitting elements are used to emit the same color of light, and the first light emitting elements and the third light emitting elements can be on different first substrates.

[0232] When the first light emitting elements and the third light emitting elements are on different first substrates, the first light emitting elements and the second light emitting elements can be in the same or different BIN files. At this time, the number of the third light emitting elements indicated by the setting ratio is related to the first number, for example, can be the same, positively correlated or negatively correlated, and the first light emitting elements and the third light emitting elements belong to different first regions respectively.

[0233] The third case is that the first light emitting elements and the third light emitting elements are used to emit light of different colors, and the first light emitting elements and the third light emitting elements can be on the same first substrate.

[0234] When the first light emitting elements and the third light emitting elements are used to emit light of different colors, the first light emitting elements and the second light emitting elements must be in different BIN files. At this time, the number of the third light emitting elements indicated by the setting ratio is related to the first number, for example, can be the same, positively correlated or negatively correlated, and the first light emitting elements and the third light emitting elements belong to different first regions respectively.

[0235] The fourth case is that the first light emitting elements and the third light emitting elements are used to emit light of different colors, and the first light emitting elements and the third light emitting elements can be on different first substrates.

[0236] When the first light emitting elements and the third light emitting elements are used to emit light of different colors, the first light emitting elements and the second light emitting elements must be in different BIN files. At this time, the number of the third light emitting elements indicated by the setting ratio is related to the first number, for example, can be the same, positively correlated or negatively correlated, and the first light emitting elements and the third light emitting elements belong to different first regions respectively.

[0237] Optionally, the setting ratio is determined according to the first optical characteristic parameter of the third light emitting element and the optical characteristic parameter of the first light emitting element to meet the display effect requirement.

[0238] Grouping according to the optical characteristic parameter can improve the difference degree of the optical characteristic parameters between the first light emitting elements in each first region, and the optical characteristic parameters of the first light emitting elements mixed according to the first picking order are relatively controllable. This mode is suitable for the case that the optical characteristic parameters of the first light emitting elements on the first substrate are relatively concentrated (for example, the proportion of the light emitting elements of a certain wavelength on the first substrate is large).

[0239] In step 304, a first picking order is determined based on the plurality of first regions.

[0240] The related content of the first picking order can be referred to the aforementioned step 203.

[0241] In a possible implementation, the first target order is obtained by randomly arranging the first regions. For example, assuming there are 12 first regions, a set of random numbers from 1 to 12 can be generated, for example, a set of random numbers can be generated by means of a pseudo-random sequence: 6, 2, 11, 4, 9, 1, 12, 8, 5, 10, 7, 3, and then each random number is corresponded to a first region, for example, each number can be corresponded to a region in turn according to the arrangement order of the first regions, and the number corresponding to each first region is the order of the first region.

[0242] FIG. 4 shows the first target order obtained after the first regions are arranged. As shown in FIG. 4, the first regions are bar-shaped regions, and the numbers of the bar-shaped regions are used to indicate the order of the first regions after the first regions are randomly arranged.

[0243] When the first picking order is used to indicate picking the first light emitting elements according to the first target order, the first light emitting elements in each first region can be picked in any order.

[0244] When the first picking order is used to indicate picking the first light emitting elements according to the first target order and the second target order, or when the first picking order is used to indicate picking the first light emitting elements according to the second target order, the second target order includes ten implementation manners of intra-region S-shape, intra-region Z-shape, intra-region spiral shape, S-shaped cell division, Z-shaped cell division, spiral-shaped cell division, arrayed cell division, row or columned cell division, patterned cell division, and optical characteristic parameter cell division.

[0245] The naming of the above implementation manners is only illustrative, and the embodiments of the present disclosure are not limited thereto.

[0246] Optionally, the second target order includes sequentially picking at least part of the first light emitting elements from the same first region according to the S-shape, the Z-shape, or the spiral shape.

[0247] For example, the S-shaped cell division, the Z-shaped cell division, the spiral-shaped cell division, the arrayed cell division, the row or columned cell division, the patterned cell division, and the optical characteristic parameter cell division are only picking part of the first light emitting elements in the same first region; and the intra-region S-shape, the intra-region Z-shape, and the intra-region spiral shape are picking all the light emitting elements in the same first region.

[0248] Intra-region S-shape

[0249] Optionally, when the first picking order is used to indicate picking the first light emitting elements according to the second target order, the intra-region S-shape includes sequentially picking all the first light emitting elements in the same first region according to the S-shape order.

[0250] Optionally, when the first picking order is used to indicate picking the first light emitting elements in the first target order and the second target order, the regional S-shape comprises: first determining the order of the plurality of first regions based on the first target order, and then picking the first light emitting elements in a next first region in the S-shape order after picking the first light emitting elements in a previous first region in the S-shape order.

[0251] Exemplarily, the length direction of the first region is the row direction, and the b direction is the row direction from left to right. The c direction is opposite to the b direction, that is, the row direction from right to left. Then, the S-shape order is used to indicate that for the first row of first light emitting elements in a certain first region, the b direction is traversed, the second row of first light emitting elements is traversed in the c direction, the third row of first light emitting elements is traversed in the b direction, the fourth row of first light emitting elements is traversed in the c direction, and so on until all the first light emitting elements in the first region are traversed. As shown in FIG. 6, the first light emitting elements in the region where the number 3 is located are traversed in the S-shape order.

[0252] FIG. 7 is a schematic diagram of the picking order of a plurality of first light emitting elements in a first region. As shown in part (a) of FIG. 7, a certain first region in a strip-shaped partition includes a total of 44 first light emitting elements, and the first light emitting elements in the first region are sequentially picked in the order of the number from small to large. Here, the order of the number from small to large is essentially traversing all the first light emitting elements in the first region in the S-shape order.

[0253] Regional Z-shape

[0254] The implementation manner of the regional Z-shape is similar to that of the regional S-shape, and the difference lies in that the regional Z-shape comprises sequentially picking all the first light emitting elements in the same first region in the Z-shape order.

[0255] Exemplarily, the length direction of the first region is the row direction, and the b direction is the row direction from left to right. Then, the Z-shape order is used to indicate that for each row of first light emitting elements in a certain first region, the b direction is traversed.

[0256] As shown in part (b) of FIG. 7, a certain first region includes a total of 44 first light emitting elements, and the first light emitting elements in the first region are sequentially picked in the order of the number from small to large. Here, the order of the number from small to large is essentially traversing all the first light emitting elements in the first region in the Z-shape order.

[0257] Regional spiral shape

[0258] The implementation manner of the intra-region spiral shape is similar to the intra-region S shape, except that the intra-region spiral shape comprises sequentially picking up all the first light emitting elements in a same first region in a spiral shape order. Here, the spiral shape can be spiral outward or spiral inward, and the embodiments of the present disclosure do not limit this.

[0259] As shown in the part (c) of FIG. 7, a total of 44 first light emitting elements are included in a certain first region, and the first light emitting elements in the first region are sequentially picked up in the order of the number from small to large. Here, the order of the number from small to large is essentially in the manner of spiral inward to traverse all the first light emitting elements in the first region.

[0260] Optionally, the step 304 comprises steps a-b as follows:

[0261] The step a comprises dividing the first light emitting elements in the first target region into a plurality of units.

[0262] The first target region is any one of the plurality of first regions, each unit comprises a plurality of first light emitting elements, and at least two first light emitting elements in a same unit are arranged continuously in the first direction and / or the second direction.

[0263] Taking the first direction as the row direction, the second direction as the column direction, or the oblique direction as an example, when at least two first light emitting elements in a same unit are arranged continuously in the first direction, for example, the 5 units in the part (b) of FIG. 10, at least two first light emitting elements in each unit are arranged continuously in the first direction.

[0264] When at least two first light emitting elements in a same unit are arranged continuously in the second direction, for example, the 4 units in the part (c) of FIG. 10, at least two first light emitting elements in each unit are arranged continuously in the column direction.

[0265] When at least two first light emitting elements in a same unit are arranged continuously in the first direction and the second direction, for example, the unit where the number 4 is located in the part (b) of FIG. 10, two first light emitting elements in the unit are arranged continuously in the row direction, and two first light emitting elements in the unit are arranged continuously in the column direction.

[0266] Optionally, the second direction intersects the first direction. For example, the second direction is the row direction, the column direction, or the oblique direction. When the first direction is the row direction, the second direction can be the column direction or the oblique direction; when the first direction is the column direction, the second direction can be the row direction or the oblique direction. Here, the oblique direction is used to indicate a direction intersecting both the row direction and the column direction.

[0267] The step b comprises determining the second target order based on the plurality of units.

[0268] The second target order is used to indicate that the first light emitting elements are sequentially picked from the plurality of units in a sequence according to an arrangement order or a random order among the plurality of units.

[0269] Optionally, the second target order is an order obtained by randomly arranging the plurality of units.

[0270] In a first possible implementation, the number of the first light emitting elements sequentially picked from each first region is less than the number of the units contained in the first region, and the first picking order is used to indicate that the first light emitting elements are picked in the following order: the jth unit is taken from the ith first region, the jth unit is taken from the next first region of the ith first region, the ith first region and the next first region of the ith first region correspond to two adjacent first regions in the first target order.

[0271] After the jth unit in the plurality of first regions is taken, the j+1th unit is taken from the ith first region, and then the j+1th unit is taken from the next first region of the ith first region, the jth unit and the j+1th unit correspond to two adjacent units in the second target order.

[0272] Wherein, i and j are integers, i is less than or equal to the number of the first regions contained in the first substrate, and j is less than or equal to the number of the units contained in the first region.

[0273] In the embodiments of the present disclosure, in the first target order, the next first region of the last first region in the plurality of first regions is the first first region. For example, in FIG. 4, the last first region in the plurality of first regions is the first region where the number 12 is located, and the next first region of the first region where the number 12 is located is the first region where the number 1 is located (i.e., the first first region in the first light emitting element picking order).

[0274] When the first light emitting elements are picked in this way, the picked first light emitting elements are dispersed on the entire first substrate, and therefore the mixing effect is good.

[0275] In a second possible implementation, the number of the first light emitting elements continuously picked up from each first region is equal to the number of the units contained in the first region, and the first picking-up sequence is used to indicate picking up the first light emitting elements in the following order: taking out each unit in an i-th first region from the i-th first region in the plurality of first regions according to the second target sequence; taking out each unit in a next first region of the i-th first region from the next first region of the i-th first region according to the second target sequence, the i-th first region and the next first region of the i-th first region corresponding to any two adjacent first regions in the first target sequence; wherein i is an integer, i is less than or equal to the number of the first regions contained in the first substrate.

[0276] In a third possible implementation, the number of the first light emitting elements continuously picked up from each first region is less than the number of the units contained in the first region; and the first picking-up sequence is used to indicate picking up the first light emitting elements in the following order: taking out a j-th unit from an i-th first region, taking out the j-th unit from a next first region of the i-th first region, the i-th first region and the next first region of the i-th first region corresponding to two adjacent first regions in the first target sequence; after the j-th unit in the plurality of first regions is taken out, reordering the plurality of first regions to update the first target sequence; taking out a j+1-th unit from the i-th first region, then determining a next first region of the updated i-th first region based on the updated first target sequence, taking out the j+1-th unit from the next first region of the updated i-th first region, the j-th unit and the j+1-th unit corresponding to two adjacent units in the second target sequence; wherein i and j are integers, i is less than or equal to the number of the first regions contained in the first substrate, and j is less than or equal to the number of the units contained in the first region.

[0277] Exemplarily, in a case that the first substrate is divided into a plurality of first regions arranged along a first direction based on the first position information, each of the first regions is in a strip shape and the length direction of each of the first regions intersects the first direction, each unit can be one row or multiple rows of the first light emitting elements, and the extension direction of each row of the first light emitting elements is the length direction of the first region.

[0278] In this way, the first light emitting elements are picked up, the first light emitting elements in one first region are picked up each time, and then the first light emitting elements in a next first region are picked up, without picking up back and forth on the entire first substrate, so that the picking-up efficiency is higher.

[0279] The above step a includes three implementation manners of regular unit division, graphical unit division and optical characteristic parameter unit division.

[0280] Regular unit division

[0281] Optionally, the regular unit division includes: dividing the plurality of first light emitting elements in the first target region into a plurality of continuous units, each unit including a plurality of first light emitting elements, and at least a plurality of first light emitting elements adjacent in the first direction and / or the second direction in the same unit.

[0282] The regular unit division can be further divided into five different implementation manners, including S-shaped unit division, Z-shaped unit division, spiral-shaped unit division, arrayed unit division, and row or column unit division.

[0283] S-shaped unit division

[0284] In the embodiments of the present disclosure, the S-shaped unit division refers to: in the process of traversing the plurality of first light emitting elements in the first target region in the S-shaped order, continuously M first light emitting elements are taken as a unit, thereby obtaining a plurality of units. Wherein, M is a positive integer.

[0285] Optionally, the number of units in each first region can be preset, and then M is determined based on the number of units. For example, the number of first light emitting elements in a certain first region can be divided by the number of units, and the result is rounded up to determine M.

[0286] For example, a certain first region includes 160 first light emitting elements, and the first region includes a total of 15 units, then M is equal to the result of 160 / 15 rounded up, that is, M is equal to 11.

[0287] FIG. 8 shows a schematic diagram of dividing the first light emitting elements in the first target region into a plurality of units in the S-shaped unit division manner. As shown in part (a) of FIG. 8, M is equal to 15, and the boxes with the same filling pattern represent the first light emitting elements in the same unit. In the process of traversing the plurality of first light emitting elements in the first target region in the S-shaped order, continuously 15 first light emitting elements are taken as a unit, thereby obtaining a plurality of units. As shown in part (b) of FIG. 8, the numbers in each unit represent the order of the unit in the second target order. It can be seen that there are a plurality of first light emitting elements adjacent in the first direction in each unit. There are also a plurality of first light emitting elements adjacent in the first direction and the second direction in some units.

[0288] Z-shaped unit division

[0289] In the embodiments of the present disclosure, the Z-shaped unit division refers to: in the process of traversing the plurality of first light emitting elements in the first target region in the Z-shaped order, continuously M first light emitting elements are taken as a unit, thereby obtaining a plurality of units. Wherein, M is a positive integer.

[0290] Spiral-shaped unit division

[0291] In the embodiments of the present disclosure, the spiral unit division refers to that, in the process of traversing the plurality of first light emitting elements in the first target region in a spiral order, M continuous first light emitting elements are taken as a unit, thereby obtaining a plurality of units. M is a positive integer.

[0292] The principle of the Z-shaped unit division and the spiral unit division is similar to that of the S-shaped unit division, and details are omitted here.

[0293] Optionally, the values of M in the S-shaped unit division, the Z-shaped unit division, and the spiral unit division can be the same or different, and the embodiments of the present disclosure do not limit this.

[0294] Array unit division

[0295] In the embodiments of the present disclosure, the array unit division refers to that the first target region is divided into a plurality of two-dimensional arrays, and the first light emitting elements in each array are taken as a unit. Here, each unit at least has a 2x2 array of first light emitting elements.

[0296] FIG. 9 shows a schematic diagram of dividing the first light emitting elements in the first target region into a plurality of units in an array unit division manner. As shown in FIG. 9, in the arrays of the first row and the second row, each array has 4x6 first light emitting elements. In the array of the third row, each array has 4x4 first light emitting elements.

[0297] Row or column unit division

[0298] In the embodiments of the present disclosure, the row or column unit division refers to that Q rows of first light emitting elements in the first target region are taken as a unit. The Q rows of first light emitting elements in the same unit can be continuously arranged, or among the Q rows of first light emitting elements in the same unit, at least one row of first light emitting elements is discontinuously arranged with other first light emitting elements in the same unit. Q is a positive integer.

[0299] Among them, a row of first light emitting elements can be a row or a column of first light emitting elements.

[0300] Taking a row of first light emitting elements as an example, the Q rows of first light emitting elements are continuous, that is, the Q rows of first light emitting elements are continuously arranged in the column direction. Among the Q rows of first light emitting elements in the same unit, at least one row of first light emitting elements is discontinuously arranged with other first light emitting elements in the same unit, that is, among the Q rows of first light emitting elements in the same unit, at least one row of first light emitting elements is discontinuously arranged with other first light emitting elements in the same unit in the column direction.

[0301] Figure 10(a) is a flowchart of picking up the first light emitting elements from the first substrate in a row or column unit division manner. As shown in Figure 10(a), after each first region is divided into a plurality of units in a row or column unit division manner, the jth unit, i.e., the Qth row of first light emitting elements, is taken away from the ith first region according to the first target order; the jth unit, i.e., the Qth row of first light emitting elements, is taken away from the next first region of the ith first region; the next first region of the ith first region is determined based on the first target order; after the jth unit in the plurality of first regions is taken away, it is determined whether all the first light emitting elements on the first substrate are taken away, if not, j is equal to j+1. Then the above process is repeated, i.e., the j+1th unit is taken away from the ith first region, and then the j+1th unit is taken away from the next first region of the ith first region, the j+1th unit is determined based on the second target order; if yes, the picking up of the first light emitting elements from the first substrate is stopped.

[0302] Graphical unit division

[0303] In the embodiments of the present disclosure, the graphical unit division refers to dividing the plurality of first light emitting elements in the first target region into a plurality of units according to the pixel distribution information of the second picture, the second picture includes a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to colors, the colors of the plurality of pixels in the same second pixel group are the same, and the colors of the pixels in different second pixel groups are different, each first light emitting element in the first target region corresponds to a pixel in the second picture, and each unit corresponds to one of the plurality of second pixel groups.

[0304] The second picture is similar to the first picture, and details are omitted here. In the embodiments of the present disclosure, the second picture is different from the first picture. Generally, the number of pixels in the second picture is less than the number of pixels in the first picture.

[0305] Optical characteristic parameter unit division

[0306] In the embodiments of the present disclosure, the optical characteristic parameter unit division refers to dividing the plurality of first light emitting elements in the first target region into a plurality of units according to the optical characteristic parameters of the plurality of first light emitting elements in the first target region, the optical characteristic parameters of the first light emitting elements in the same unit belong to the same parameter sub-interval, and the optical characteristic parameters of the first light emitting elements in different units belong to different parameter sub-intervals.

[0307] The determination manner of the parameter sub-interval is similar to the determination manner of the parameter interval, and details are omitted here.

[0308] Optionally, the second target sequence is further used to indicate that at least part of the first light emitting elements in each unit is picked up in a S-shaped, Z-shaped or spiral-shaped sequence, for example, only part of the first light emitting elements in each unit is picked up, or all the first light emitting elements in each unit is picked up. That is, for the first light emitting elements in any one of the units, they can be picked up in a S-shaped, Z-shaped or spiral-shaped sequence.

[0309] Optionally, the picking up manners of the first light emitting elements in different units can be the same or different, where the picking up manner is to pick up the first light emitting elements in a sequence of any one of the S-shaped, Z-shaped or spiral-shaped sequence.

[0310] For example, the first light emitting elements in the multiple units in the first substrate can be picked up in different picking up manners. Optionally, the picking up sequences of the first light emitting elements in two adjacent units are different, for example, in the two adjacent units, one is picked up in a S-shaped sequence, and the other is picked up in a Z-shaped sequence; or, in the two adjacent units, one is picked up in a S-shaped sequence, and the other is picked up in a spiral-shaped sequence.

[0311] For example, the first light emitting elements in the multiple units in the first substrate can be picked up in different picking up manners. Optionally, the picking up sequences of the first light emitting elements in two adjacent units are different, for example, in the two adjacent units, one is picked up in a S-shaped sequence, and the other is picked up in a Z-shaped sequence; or, in the two adjacent units, one is picked up in a S-shaped sequence, and the other is picked up in a spiral-shaped sequence.

[0312] In other embodiments, the first light emitting elements in the multiple units in the same first region can be picked up in the same picking up manner, while the picking up manners of the first light emitting elements in the units in different first regions are different. For example, the multiple units in the same first region can be picked up in a S-shaped sequence, while the units in the first regions adjacent to the first region in the first picking up sequence can be picked up in a Z-shaped or spiral-shaped sequence.

[0313] In some embodiments, each unit can also be divided into multiple sub-units, and the picking up sequence of the first light emitting elements in each unit is determined based on the multiple sub-units. In this case, step b is implemented by the following steps b1 to b2:

[0314] Step b1, the multiple first light emitting elements in the first unit are divided into multiple sub-units.

[0315] The first unit is any one of the multiple units, each sub-unit includes multiple first light emitting elements, and at least two first light emitting elements in the same sub-unit are arranged continuously in the first direction and / or the second direction.

[0316] Step b2, the second target sequence is determined based on the multiple sub-units.

[0317] The second target order is also used to indicate picking the first light emitting elements from the plurality of sub-units in turn according to an arrangement order or a random order among the plurality of sub-units.

[0318] Optionally, the second target order is an order obtained by randomly arranging the plurality of sub-units.

[0319] Optionally, step b1 can be implemented in a S-shaped, Z-shaped or spiral manner.

[0320] Optionally, step c is implemented in a S-shaped, Z-shaped or spiral manner, and the principle is similar to the S-shaped sub-unit division, Z-shaped sub-unit division or spiral sub-unit division. In the process of traversing the first unit according to the S-shaped, Z-shaped or spiral order, the continuous N first light emitting elements in the first unit are taken as a sub-unit, thereby obtaining the plurality of sub-units. N is a positive integer.

[0321] Optionally, the number of sub-units in each unit can be preset, and then N is determined based on the number of sub-units. For example, the number of first light emitting elements in a unit can be divided by the number of sub-units, and the result is rounded up to determine N.

[0322] For example, a unit includes 15 first light emitting elements, and the first region includes 3 sub-units in total, then N is equal to the result of 15 / 3 rounded up, that is, N is equal to 5.

[0323] Optionally, in the case where there are a plurality of sub-units, the second target order is an order obtained by randomly arranging the plurality of sub-units.

[0324] Figure 10 is a flowchart of picking the first light emitting elements according to the row or column unit division manner and a schematic diagram of dividing the first light emitting elements in a unit into a plurality of sub-units according to the S-shaped and two-dimensional array division manner. Part (b) of Figure 10 is a schematic diagram of dividing the first light emitting elements in a unit into a plurality of sub-units according to the S-shaped division manner. As shown in part (b) of Figure 10, N is equal to 5, and the boxes with the same filling pattern represent the first light emitting elements in the same unit. In the process of traversing the plurality of first light emitting elements in the unit according to the S-shaped order, the continuous 3 first light emitting elements are taken as a unit, thereby obtaining the plurality of sub-units. The numbers on the 5 sub-units represent the order among the 5 sub-units.

[0325] Optionally, for the array unit division, step b1 can also be implemented by the two-dimensional array arrangement manner. Here, the first light emitting elements in each unit in the array unit division are arrayed, and therefore each unit can be divided into a plurality of sub-units arranged in a two-dimensional array.

[0326] Part (c) of FIG. 10 is a schematic view of dividing the first light emitting elements in the array unit into a plurality of sub-units according to a two-dimensional array division manner. As shown in part (c) of FIG. 10, one unit in the array unit division is divided into 4 array-arranged sub-units, and each sub-unit includes 2x3 first light emitting elements.

[0327] Optionally, the second target order is further used to indicate sequentially picking up all the first light emitting elements in each sub-unit in an S shape, a Z shape or a spiral shape. That is, for the first light emitting elements in any one of the sub-units, they can be picked up in an S shape, a Z shape or a spiral shape.

[0328] When picking up in an S shape, a Z shape or a spiral shape, the two adjacent first light emitting elements are continuous in the row direction, the column direction or the diagonal direction, so after picking up one first light emitting element in a sub-unit, the chip transfer device can easily find the next first light emitting element in the sub-unit, effectively improving the efficiency of picking up the first light emitting elements from the sub-units.

[0329] Optionally, in the case where the sub-units exist, the first picking-up order is used to indicate picking up the first light emitting elements in the following order: taking away the kth sub-unit from the jth unit in the first target area, and taking away the (k+1)th sub-unit from the (j+1)th unit in the first target area. The jth unit and the (j+1)th unit correspond to two adjacent units in the second target order, and the kth sub-unit and the (k+1)th sub-unit correspond to two adjacent sub-units in the second target order.

[0330] Wherein, j and k are integers, j is less than or equal to the number of units contained in the first area, and k is less than or equal to the number of sub-units contained in each unit.

[0331] In the embodiments of the present disclosure, the first light emitting elements located in the same first area can be regarded as being in the same BIN file. In the case where the units exist, the ith unit in each first area can be regarded as being in the same BIN file, for example, the first unit in each first area can be regarded as being in the same BIN file.

[0332] Optionally, the same identification information can be used to mark the first light emitting elements located in the same BIN file, and different identification information can be used to mark the first light emitting elements in different BIN files. Each first light emitting element identification information can also be stored, for example, in the first wafer picking file generated subsequently. The identification information can be a name or a number, etc.

[0333] In actual production, there can be a case that two substrates are used to produce one target substrate together. The light emitting elements on the two substrates can be of the same color or different colors.

[0334] When the light emitting elements on the two substrates are of the same color, it can be because the number of the light emitting elements remaining on one substrate is less than the number of the light emitting elements required for producing one display module, and thus the light emitting elements on the other substrate are needed to produce the display module together.

[0335] When the light emitting elements on the two substrates are of different colors, it can be because the display module needs to emit light of different colors, and thus light emitting elements of different colors are needed to produce together.

[0336] In this case, the method further includes the following three steps:

[0337] Firstly, second substrate data of a second substrate is obtained.

[0338] The first substrate and the second substrate are used to produce one target substrate together, the second substrate includes a plurality of second light emitting elements, and the second substrate data includes second position information, which is used to indicate positions of the plurality of second light emitting elements on the second substrate.

[0339] Secondly, the first substrate is divided into a plurality of second regions according to a target rule based on the second position information.

[0340] There are a plurality of second light emitting elements in each second region.

[0341] Thirdly, a second picking sequence is determined based on the plurality of second regions.

[0342] The second picking sequence is used to indicate picking the second light emitting elements according to a third target sequence and / or a fourth target sequence, the third target sequence includes picking the second light emitting elements from at least two second regions on the second substrate in turn, and the fourth target sequence includes picking the second light emitting elements from one second region on the second substrate in turn.

[0343] The implementation manners of the above first step to third step refer to the aforementioned steps 301-304, and only need to replace the first substrate in the steps 301-304 with the second substrate, replace the first position information with the second position information, replace the first light emitting elements with the second light emitting elements, and replace the first picking sequence with the second picking sequence, and the detailed description is omitted here.

[0344] Optionally, the first picking sequence is different from the second picking sequence.

[0345] Since the optical characteristic parameter distributions of the light-emitting elements on the first substrate and the second substrate may be similar, if the pickup order of the first light-emitting elements and the pickup order of the second light-emitting elements are the same, the optical characteristic parameter distribution of the first light-emitting elements in the first region on the first substrate and the optical characteristic parameter distribution of the second light-emitting elements in the first region on the second substrate will be quite similar (similarly, the optical characteristic parameter distributions of the light-emitting elements in other corresponding first regions on the first substrate and the second substrate may also be similar). In this case, the optical characteristic parameter distribution of the light-emitting elements on the produced display module may be relatively concentrated. Therefore, by making the first pickup order and the second pickup order different, the possibility of concentrated optical characteristic parameter distributions of the light-emitting elements on the produced display module is reduced.

[0346] In practice, the first and second picking orders may be the same, but the probability of them being the same is extremely small, so this situation can be ignored in actual production.

[0347] In this embodiment, since the first region is divided based on the first location information, and some first light-emitting elements are not selected based on their wavelength information (among the selected first light-emitting elements, the wavelength difference between the first light-emitting element with the longest wavelength and the first light-emitting element with the shortest wavelength is within the range of 2.5-5nm), first light-emitting elements whose wavelengths are outside the wavelength selection range are excluded before determining the picking order of the first light-emitting elements. Therefore, the scope of use of the first light-emitting elements can be expanded, so that first light-emitting elements with a wavelength difference between the first light-emitting element with the longest wavelength and the first light-emitting element with the shortest wavelength within the range of 5-10nm can be utilized, thereby improving the utilization rate of the first light-emitting elements.

[0348] Furthermore, when picking up the first light-emitting element using the method described in this embodiment, since the first light-emitting element has been sufficiently mixed during the picking process, the picked-up first light-emitting element can be directly transferred to the product substrate without having to be sorted by a sorting machine before being transferred to the product substrate, thereby simplifying the light-emitting element transfer process.

[0349] Figure 12 illustrates a flowchart of a method for determining the pickup order of light-emitting elements according to another exemplary embodiment of this disclosure. Referring to Figure 12, the method includes:

[0350] In step 1201, a second instruction is received.

[0351] The second instruction is used to indicate the manner in which the first substrate is divided into multiple first regions.

[0352] Optionally, a second instruction can be received via an input device, which may include, but is not limited to, a mouse, keyboard, touchscreen, etc.

[0353] The manner of dividing the first substrate into a plurality of first regions is described above in step 303, and details are omitted here.

[0354] In step 1202, based on the first position information, the first substrate is divided into a plurality of first regions in a manner indicated by the second instruction.

[0355] In step 1203, the first instruction is received.

[0356] The first instruction is used to indicate the manner of determining the first target order and / or the second target order.

[0357] The manner of receiving the first instruction is the same as the manner of receiving the second instruction, and details are omitted here.

[0358] The manner of determining the first target order and / or the second target order is described above in step 304, and details are omitted here.

[0359] In step 1204, based on the plurality of first regions, the first target order and / or the second target order is determined in a manner indicated by the first instruction to determine the first picking order.

[0360] FIG. 13 shows a flowchart of a picking method of a light emitting element provided by one example embodiment of the present disclosure, which can be executed by a computer device. The method includes:

[0361] In step 1301, first substrate data of a first substrate is obtained.

[0362] The first substrate includes a plurality of first light emitting elements, the first substrate is divided into a plurality of first regions, there are a plurality of first light emitting elements in each first region, the first substrate data includes first position information, and the first position information is used to indicate positions of the plurality of first light emitting elements on the first substrate.

[0363] Details of step 1301 are described above in step 301, and details are omitted here.

[0364] In step 1302, the first light emitting elements are picked from the plurality of first regions of the first substrate in a first picking order.

[0365] The first picking order is used to indicate picking the first light emitting elements in the first target order and / or the second target order, the first target order includes picking the first light emitting elements from at least two first regions on the first substrate in sequence, and the second target order includes picking the first light emitting elements from the same first region on the first substrate in sequence.

[0366] Optionally, the first picking sequence can be pre-stored in the local storage in the form of a first wafering file, and the first picking sequence corresponding to the first substrate can be determined based on the identification information of the first substrate.

[0367] Optionally, the identification information of the first substrate can be an ID (Identifier) of the first substrate, or a bar code or a two-dimensional code or the like that can be used to distinguish the first substrate.

[0368] Optionally, the identification information of the first substrate can be manually input or read by a reading device.

[0369] In the embodiments of the present disclosure, the first wafering file needs to include the position information of all the first light emitting elements, so as to facilitate subsequent comparison and correction. In the case where the first picking sequence is used to indicate picking of the first light emitting elements except for the unqualified first light emitting elements, the first light emitting elements in the first picking sequence can be placed in the first half of the wafering file, and all the NG light emitting elements can be placed in the second half of the wafering file, so as to facilitate picking of the normal first light emitting elements without picking the NG light emitting elements.

[0370] When the normal first light emitting elements in the first picking sequence are all picked according to the wafering file, the last NG light emitting element in the wafering file can be directly ignored.

[0371] Optionally, the first target sequence is to pick at least part of the first light emitting elements from each first region in an S shape, a Z shape or a spiral shape according to the arrangement sequence or a random sequence of the plurality of first regions. For example, the related content of the in-region S shape, the in-region Z shape or the in-region spiral shape in the foregoing step 304.

[0372] Optionally, the first target region is divided into a plurality of units, the first target region is any one of the plurality of first regions, there are a plurality of first light emitting elements in each unit, and the second target sequence is to pick at least part of the first light emitting elements from each unit in an S shape, a Z shape or a spiral shape according to the arrangement sequence or a random sequence of the plurality of units. For example, the related content of picking the first light emitting elements from the plurality of units by the foregoing S unit division, Z unit division, spiral unit division, row or column unit division, array unit division, pattern unit division or optical characteristic parameter unit division in the step 304.

[0373] Optionally, the first unit is divided into a plurality of sub-units, the first unit is any one of the plurality of units, a plurality of first light emitting elements exist in each sub-unit, and the second target order is to sequentially pick up all the first light emitting elements from each sub-unit in a S-shaped, Z-shaped or spiral manner according to the arrangement order of the plurality of sub-units or in a random order. For example, in the foregoing step 304, in the case where the sub-units exist, the related content of picking up the first light emitting elements from the plurality of sub-units.

[0374] FIG. 14 shows a flowchart of a transfer method of a light emitting element provided by an example embodiment of the present disclosure, which can be executed by a computer device. Referring to FIG. 14, the method includes:

[0375] In step 1401, a first picking order is obtained.

[0376] The related content of step 1401 is described in the foregoing step 304, and details are omitted here.

[0377] In step 1402, a transfer order is obtained.

[0378] The transfer order is used to indicate the order of transferring the first light emitting elements to a target substrate.

[0379] In step 1403, the first light emitting elements are picked up from the first substrate according to the first picking order by a chip transfer device, and the picked first light emitting elements are transferred to the target substrate according to the transfer order.

[0380] Optionally, the chip transfer device includes, but is not limited to, a pick-and-place machine, a chip mounter, and a swing arm type of the chip mounter. The pick-and-place machine is used to sort the light emitting elements according to certain rules, and transfer the light emitting elements of the same type to the same substrate (here, the substrate can be a substrate, a blue film, and other media capable of carrying light emitting elements, which are not limited by the embodiments of the present disclosure). The pick-and-place machine is used to sort the light emitting elements according to certain rules, including but not limited to sorting the light emitting elements according to wavelength, color tolerance, and other physical parameters. The swing arm type chip mounter is used to transfer the light emitting elements from one substrate to another substrate.

[0381] Optionally, in the case where the picked first light emitting elements are transferred to a product substrate, the chip transfer device can also be a needle type chip mounter, a pick-and-place machine, and a laser transfer device. The pick-and-place machine is used to paste the light emitting elements onto the product substrate; the laser transfer device is used to transfer a large number of light emitting elements to the product substrate by laser transfer technology. The needle type chip mounter is used to transfer the light emitting elements to the product substrate.

[0382] Specifically, when the chip mounter is a needle type chip mounter, the first substrate is a flexible substrate.

[0383] The product substrate is used to fix the light emitting element to produce a light emitting device. The product substrate can also be referred to as a die bonding substrate. Optionally, the light emitting device can be a display panel or a backlight source in a liquid crystal display module.

[0384] Optionally, when the die bonder is a needle type die bonder, the first substrate is a flexible substrate.

[0385] Optionally, the light emitting element is a light emitting diode, for example, a Mini-LED or a Micro-LED, but is not limited thereto.

[0386] Optionally, the target substrate is a substrate included in a display module. One display module can include one or more target substrates.

[0387] Optionally, the target substrate can be an intermediate substrate or a product substrate. The intermediate substrate is used to temporarily or temporarily carry the light emitting element.

[0388] Optionally, the arrangement point of the target substrate has a connecting portion.

[0389] Optionally, the connecting portion is a conductive pad, for example, including a first conductive pad and a second conductive pad, respectively electrically connected with the anode and the cathode of the light emitting element.

[0390] Optionally, the conductive pad is a solder pad, and the light emitting element is fixedly connected with the conductive pad through solder.

[0391] Optionally, the target substrate is a driving backplane of a display substrate. After the light emitting diode is transferred to the target substrate, an LED display substrate is prepared.

[0392] Optionally, the target substrate is a direct type light emitting substrate, for example, a backlight source of an LCD (Liquid Crystal Display) display module. After the light emitting diode is transferred to the target substrate, a direct type light emitting substrate is prepared.

[0393] Exemplarily, the intermediate substrate can be a blue film, a UV (Ultraviolet Ray) film, etc., and the present disclosure does not limit the same.

[0394] In the present disclosure, the first light emitting element is picked up from the first substrate in the first picking order by the chip transfer device, and the picked first light emitting element is transferred to the target substrate. Since the first picking order can better mix the first light emitting element, even if the first light emitting element in the first substrate has regional concentration of optical characteristic parameters, the probability of regional color difference of the light emitting element on the target substrate can be greatly reduced.

[0395] FIG. 16 shows a flowchart of a method for transferring light emitting elements according to an example embodiment of the present disclosure, which can be executed by a computer device, and in the case that the target substrate is a product substrate, the method comprises the following steps:

[0396] In step 1601, a first picking sequence is obtained.

[0397] For details of step 1601, refer to the aforementioned step 1201, and details are omitted here.

[0398] In step 1602, a first photo of the first substrate is obtained.

[0399] Optionally, the first photo of the first substrate is obtained by controlling the camera to take a photo of the first substrate.

[0400] In step 1603, third position information of a plurality of first light emitting elements of the first substrate is determined based on the first photo.

[0401] The third position information comprises coordinate information of each first light emitting element on the first substrate identified from the photo, which comprises a row coordinate and a column coordinate of each first light emitting element. The third position information is the actual distribution of the first light emitting elements on the first substrate.

[0402] In the embodiments of the present disclosure, when the first substrate is fixed on the worktable of the chip transfer device, the chip transfer device will perform a preprocessing on the first chips on the first substrate, that is, coordinate conversion on the first position information, so as to convert the positions of the first light emitting elements indicated by the first position information into the coordinates of the first light emitting elements in the coordinate system of the chip transfer device. After coordinate conversion, the chip transfer device will generate a chip transfer coordinate file, which is used to indicate the coordinates of the first light emitting elements in the coordinate system of the chip transfer device. Generally, the chip transfer coordinate file can also be referred to as a wafer map.

[0403] In the related art, the step of coordinate conversion is usually implemented by a single-point seeking mode, which means that the chip transfer device touches the first light emitting elements one by one to determine the coordinates of the first light emitting elements in the coordinate system of the chip transfer device. In the embodiments of the present disclosure, the step of coordinate conversion can be implemented by the third position information, which greatly speeds up the preprocessing step, thereby improving the efficiency of the chip transfer process.

[0404] In step 1604, the first position information is updated based on the third position information.

[0405] Optionally, the updating the first position information based on the third position information comprises: comparing the different parts in the first position information and the third position information, and replacing the different parts in the first position information with the third position information. For example, in the first position information, there is a first light emitting element at coordinate D, while in the third position information, there is no first light emitting element at coordinate D. At this time, the first position information is updated according to the third position information, for example, the third position information is directly replaced with the first position information, or the coordinate D in the first position information is deleted.

[0406] After the updating, the first position information is actually the same as the third position information. In this way, the updated first position information is the position information conforming to the actual situation of the first substrate, and compared with the first position information before the updating, the updated first position information does not include the first light emitting element that does not exist on the first substrate. In the updated first position information, the number of the first light emitting elements is usually reduced, for example, the first light emitting element at some coordinates does not exist. At this time, when the first light emitting elements are picked up according to the first picking order, the picking up is continued by skipping these non-existing positions. Therefore, the updating of the first position information can improve the accuracy of picking up the first light emitting elements by the chip transfer device.

[0407] Optionally, the method further comprises: combining the third position information with the chip transfer coordinate file.

[0408] The combination of the third position information with the chip transfer coordinate file means that the third position information is combined with the chip transfer coordinate file, so that the chip transfer coordinate file includes both the row and column of each first light emitting element on the first substrate and the coordinate data of each first light emitting element on the chip transfer device.

[0409] FIG. 17 is a schematic view of updating the first position information based on the third position information. Part (a) of FIG. 17 is a schematic view of the positions of the plurality of first light emitting elements on the first substrate indicated by the first position information; part (b) of FIG. 17 is a schematic view of the positions of the plurality of first light emitting elements on the first substrate indicated by the third position information, and region 1701 is a region where there is no first light emitting element. As can be seen, the positions of the plurality of first light emitting elements indicated by the first position information are different from the positions of the plurality of first light emitting elements indicated by the third position information. Therefore, the first position information needs to be updated based on the third position information. The first position information is updated based on the third position information, that is, the third position information indicated by part (b) of FIG. 17 is replaced with the first position information.

[0410] In this way, the reliability of the first picking order determined based on the first position information is ensured.

[0411] Since the chip transfer device may affect the positions of the first light emitting elements on the first substrate which are not picked up when picking up the first light emitting elements (for example, when the first substrate is an intermediate substrate, the blue film or the UV film is wrinkled during the process of picking up the first light emitting elements on the first substrate), the positions of the first light emitting elements which are not picked up may not match the positions of the first light emitting elements indicated in the first picking sequence, so in this case, the method further includes: acquiring a second photo of the first substrate at a set time interval during the process of picking up the first light emitting elements from the first substrate by the chip transfer device according to the first picking sequence and transferring the picked first light emitting elements to the target substrate according to the transfer sequence; determining fourth position information of the plurality of first light emitting elements of the first substrate based on the second photo; and updating the first position information based on the fourth position information.

[0412] The fourth position information is similar to the third position information, and details are omitted here.

[0413] Optionally, the set time interval is 2-5 hours, for example, 2 hours, 3 hours, 4 hours or 5 hours.

[0414] By acquiring the second photo at the set time interval, the first picking sequence can be updated regularly, thereby ensuring the reliability of the first picking sequence.

[0415] In step 1605, the transfer sequence is acquired.

[0416] The transfer sequence is used to indicate the sequence of transferring the first light emitting elements to the target substrate.

[0417] In one possible implementation, optionally, the chip transfer device picks up the first light emitting elements by the transfer element, and the transfer sequence is sequentially transferring according to the arrangement order of the arrangement points on the target substrate, where the sequentially transferring according to the arrangement order of the arrangement points on the target substrate can be that the transfer element traverses each arrangement point on the target substrate in an S-shaped, Z-shaped or spiral manner. For example, the plurality of arrangement points in the target substrate are arranged in an array, and each arrangement point is used to arrange a first light emitting element.

[0418] In another possible implementation, step 1605 includes: acquiring position information of the plurality of arrangement points in the target substrate, the plurality of arrangement points in the target substrate are arranged in an array, and each arrangement point is used to arrange a first light emitting element; and the position information of the arrangement points is used to indicate the positions of the arrangement points in the target substrate.

[0419] Based on the position information of the plurality of arrangement points in the target substrate, the plurality of arrangement points in the target substrate are divided into a plurality of point groups, the plurality of point groups include at least one target point group, the target point group includes a plurality of target arrangement points, and the arrangement points in each point group are different.

[0420] determine the transfer sequence based on the position information of each target arrangement point in the target point group, the transfer sequence including a moving path of the transfer element and an order in which each target arrangement point obtains the first light-emitting element;

[0421] In the target point group, at least one target arrangement point is spaced apart from other target arrangement points in the target arrangement point group by at least one arrangement point in the first direction and / or the second direction.

[0422] The arrangement position information of the plurality of arrangement points may, for example, be coordinate information of each arrangement point on the target substrate, which indicates the row coordinate and column coordinate of each arrangement point.

[0423] The transfer sequence of each point group is used to indicate the order in which the arrangement points in a single point group obtain the first light-emitting element. For example, a point group includes three arrangement points ABC, and the transfer sequence of each point group is used to indicate the order in which the three arrangement points ABC obtain the first light-emitting element, for example, the A arrangement point obtains the first light-emitting element first, then the C arrangement point obtains the first light-emitting element, and finally the B point obtains the first light-emitting element, which is a kind of die bonding sequence.

[0424] The present disclosure does not limit the way of dividing the point groups, for example: the plurality of arrangement points in the target substrate are divided into a plurality of first point sets in sequence, each first point set includes M arrangement points and at least two of the M arrangement points are arranged continuously in the first direction and / or the second direction, wherein M is an integer and M is greater than 2; randomly assign 1 to M values to the M arrangement points in each first point set, and for the same first point set, different arrangement points are assigned different values; the arrangement points corresponding to the same value in each first point set are taken as a point group, and a plurality of point groups are obtained.

[0425] Or,

[0426] The plurality of arrangement points in the target substrate are divided into a plurality of first point sets in sequence, each first point set includes M arrangement points and at least two of the M arrangement points are arranged continuously in the first direction and / or the second direction, wherein M is an integer and M is greater than 2;

[0427] The 1 to M values are randomly assigned to the M arrangement points in each first point set, and different arrangement points in the same first point set are assigned different values; in the case that the values assigned to the first arrangement point and the second arrangement point are the same, the value of the first arrangement point and / or the second arrangement point is adjusted so that the first arrangement point and the second arrangement point are different, the first arrangement point is any arrangement point in the target substrate, and the second arrangement point is adjacent to the first arrangement point in the first direction or the second direction; the arrangement points corresponding to the same value in each first point set are taken as a point group, and a plurality of point groups are obtained.

[0428] Or,

[0429] The target substrate is divided into a plurality of first regions, the plurality of first regions are arranged along the first direction, each first region includes at least two rows of arrangement points arranged along the second direction, or the plurality of first regions are arranged along the second direction, each first region includes at least two rows of arrangement points arranged along the first direction, or the plurality of first regions are arrayed on the target substrate, and each first region includes a plurality of arrayed arrangement points; the plurality of arrangement points in each first region are divided into a plurality of continuous first point sets, each first point set includes M arrangement points, and at least two of the M arrangement points are arranged continuously along the first direction and / or the second direction, wherein M is an integer and M is greater than 2; 1 to M values are randomly assigned to the M arrangement points in each first point set, and different arrangement points in the same first point set are assigned different values; the arrangement points corresponding to the same value in each first point set are taken as a point group, and a plurality of point groups are obtained.

[0430] Optionally, the transfer order of each point group is obtained in the following manner: the plurality of arrangement points in each point group are randomly sorted to obtain the transfer order of each point group.

[0431] The plurality of arrangement points in each point group are randomly sorted, so that even if the wavelength of the light emitting element picked up adjacent several times is similar, the situation that the wavelength distribution on the target substrate is concentrated will not occur, effectively reducing the possibility of regional color difference on the target substrate.

[0432] In step 1606, the first light emitting element is picked up from the first substrate according to the first picking order by the chip transfer device, and the picked first light emitting element is transferred to the target substrate according to the transfer order.

[0433] Optionally, transferring the picked first light emitting element to the target substrate according to the transfer order includes:

[0434] The first light emitting elements are transferred to the target arrangement points by the transfer elements according to the moving paths of the transfer elements and the sequence of the first light emitting elements.

[0435] Optionally, the method further comprises: generating a transfer scheme of the first light emitting elements on the first substrate based on the first picking sequence; and distributing the transfer scheme of the first light emitting elements on the first substrate to one or more chip transfer devices.

[0436] The transfer scheme of the first light emitting elements can be stored in the form of a pick sub-program, in which case the chip transfer device picks the first light emitting elements from the first substrate according to the first picking sequence, that is, the chip transfer device picks the first light emitting elements from the first substrate according to the sequence indicated by the received pick sub-program.

[0437] Optionally, the chip transfer device further comprises a GUI (Graphics User Interface) module, which is a man-machine interactive interface. The staff can read, distribute or modify the pick sub-program based on the GUI module.

[0438] Since the target substrate includes a plurality of die bonding points, if only one pickup head is used for die bonding, the die bonding efficiency is low. By dividing the plurality of die bonding points into at least two point groups, and each point group corresponding to one chip transfer device, at least two chip transfer devices can be used for die bonding at the same time, thereby improving the die bonding efficiency.

[0439] When the chip transfer device is a needle type die bonder in the die bonder, in the target point group, at least in the first direction, the target substrate has a first light emitting element and a second light emitting element, and the first light emitting element and the second light emitting element are spaced apart by a light emitting element in the corresponding positions on the first substrate, where a is a positive integer.

[0440] For example, in the first direction, the target substrate has a first light emitting element and a second light emitting element, and the first light emitting element and the second light emitting element are spaced apart by a light emitting element in the corresponding positions on the first substrate. Or, in the second direction, the target substrate has a first light emitting element and a second light emitting element, and the first light emitting element and the second light emitting element are spaced apart by a light emitting element in the corresponding positions on the first substrate.

[0441] Generally, a is equal to the difference between the number of all light emitting elements arranged in a pixel on the target substrate along the first direction and 1. For example, each pixel on the target substrate includes three light emitting elements arranged along the first direction, which are red, green and blue light emitting elements, respectively, and the first light emitting element is a red light emitting element. Then a is equal to the difference between 3 and 1, that is, a is equal to 2.

[0442] Or, in the first direction, the distance between two adjacent arrangement points on the target substrate is an integer multiple of the distance between two adjacent first light emitting elements on the first substrate.

[0443] The principle of transferring light emitting elements by the needle type die bonder is as follows: the first substrate is covered above the target substrate, and the plurality of light emitting elements on the first substrate are one-to-one corresponding to the plurality of arrangement points on the target substrate, that is, each light emitting element on the first substrate corresponds to an arrangement point on the target substrate. When transferring, the needle of the needle type die bonder pokes the light emitting element on the first substrate downward onto the corresponding arrangement point on the target substrate to transfer the light emitting element.

[0444] When the needle type die bonder transfers light emitting elements using the first mode, the first substrate is not moved (or only a small movement in a limited area is made to accurately align to compensate for the alignment deviation of the light emitting elements and the arrangement points), so the efficiency of transferring light emitting elements as a whole is relatively high, therefore, the first mode can also be called fast mode; when the needle type die bonder transfers light emitting elements using the second mode, the first substrate needs to be moved once for each first light emitting element transferred, so compared with the first mode, the second mode has a lower efficiency in transferring light emitting chips, therefore, the second mode can also be called slow mode.

[0445] In a specific embodiment, in the fast mode, the movement of the needle from the first light emitting element to the second light emitting element is a uniform linear motion, and the uniform linear motion speed along the direction from the first light emitting element to the second light emitting element is maintained while the force is applied to the first light emitting element and the second light emitting element (i.e. instant movement toward the first substrate and then retraction). Further, for example, in the case where the first light emitting element and the second light emitting element are located in the first direction (e.g. in the same row) and the first direction also includes other light emitting elements to be transferred, the needle still maintains the uniform linear motion speed along the direction from the first light emitting element to the second light emitting element while transferring the first light emitting element, the second light emitting element and other electronic elements. In this way, the needle can quickly transfer the light emitting elements and improve the transfer efficiency of the light emitting elements, but also puts higher requirements on the relative position of the light emitting elements and the arrangement positions.

[0446] Specifically, for the case where the two adjacent first light emitting elements on the target substrate are separated by a light emitting element in the corresponding positions on the first substrate in the first direction, the needle of the needle type die bonder can quickly transfer the first light emitting elements corresponding to the same arrangement point group in the first direction, while reducing or avoiding relatively large displacement between the first substrate and the target substrate during the transfer process, reducing the vibration of the transfer device, and being beneficial to improve the transfer precision.

[0447] For the case that two adjacent first light emitting elements on the target substrate are spaced by b light emitting elements in the corresponding positions on the first substrate in the second direction, when the arrangement point positions in the same arrangement point position group are distributed in multiple rows, the pin-type die bonder can reduce or avoid a large relative displacement between the first substrate and the target substrate in the process of transferring the first light emitting elements corresponding to the same arrangement point position group by the needle, reduce the vibration of the transfer device, and be beneficial to improve the transfer precision.

[0448] wherein b is a positive integer, and a and b can be the same or different.

[0449] The first mode and the second mode will be described below in combination with FIG. 15. FIG. 15 is a schematic view of the first mode and the second mode of the pin-type die bonder transferring the first light emitting elements. Part (a) of FIG. 15 shows the transfer process of the first light emitting elements in the first mode, and part (b) of FIG. 15 shows the transfer process of the first light emitting elements in the second mode.

[0450] In FIG. 15, the left side is the target substrate, and the right side is the first substrate. Each pixel region 1501 in the target substrate includes three arrangement point positions, among which R is the arrangement point position of the first light emitting element, G is the arrangement point position of the green light emitting element, and B is the arrangement point position of the blue light emitting element. The first substrate is arranged with a plurality of first light emitting elements 1502.

[0451] Since two arrangement point positions R in the target substrate are spaced by the arrangement point positions G and B, when the first substrate is overlaid above the target substrate and the first light emitting elements are transferred to the arrangement point positions corresponding to the first light emitting elements, as shown in part (a) of FIG. 15, the first light emitting element in the first row is first transferred to the corresponding arrangement point position R on the target substrate, then the first substrate is kept stationary, the second and third first light emitting elements in the first row are skipped, and the fourth first light emitting element in the first row is transferred to the corresponding arrangement point position R on the target substrate.

[0452] As shown in part (b) of FIG. 15, the first light emitting element in the first row is first transferred to the corresponding arrangement point position R on the target substrate, then the first substrate is moved to align the second first light emitting element in the first row with the second arrangement point position R in the first row on the target substrate, and after the alignment, the second first light emitting element in the first row on the first substrate is transferred to the second arrangement point position R in the first row on the target substrate. In this way, by using the second mode, each first light emitting element on the first substrate can be transferred to the target substrate.

[0453] Due to process defects of some first light emitting elements and large deviations of arrangement of some first light emitting elements from preset positions on the first substrate, some first light emitting elements corresponding to arrangement points in the same arrangement point group may fail to be normally transferred to the target substrate through the first mode. These arrangement light emitting elements can be named as defective light emitting elements. In the first mode, the defective light emitting elements cannot be transferred to the target substrate, and therefore, for the defective light emitting elements, the second mode needs to be used for transfer. In this case, in the first mode, the second mode can also be used for transfer of arrangement points corresponding to the defective light emitting elements in the same arrangement point group.

[0454] In a possible implementation, after the arrangement points in the arrangement point group except the arrangement points corresponding to the defective light emitting elements are transferred by using the first mode, the arrangement points corresponding to the defective light emitting elements in the arrangement point group are transferred by using the second mode.

[0455] In another possible implementation, after the arrangement points corresponding to the defective light emitting elements are transferred by using the second mode, the arrangement points in the arrangement point group except the arrangement points corresponding to the defective light emitting elements are transferred by using the first mode.

[0456] It can be understood that for the arrangement points in the same arrangement point group, the number of the first light emitting elements transferred by using the second mode is less than (or much less than, for example, less than 1 order of magnitude or more) the number of the first light emitting elements transferred by using the first mode.

[0457] Optionally, the method further includes: after the transfer of the light emitting elements on the target substrate is completed, generating a first traceability file, the first traceability file including an identifier of the first substrate corresponding to the light emitting elements on the target substrate, position information of the light emitting elements on the target substrate on the corresponding first substrate, and optical characteristic parameters of the light emitting elements on the target substrate.

[0458] After the die bonding on the target substrate is completed, if a production defect occurs (for example, a defective product is produced), the source of the production defect needs to be determined and improved, and therefore, by generating the traceability file, the efficiency of production defect traceability can be improved.

[0459] Optionally, the method further includes: in a case where the identifier information of the first substrate is incorrect or the first pick-up sequence corresponding to the first substrate does not exist, generating corresponding alarm information.

[0460] For example, in the case that the identification information of the first substrate is incorrect, first alarm information is generated, the first alarm information is used to indicate that the identification information of the first substrate is incorrect, and after the staff identifies the first alarm information, the staff can manually input the identification information of the first substrate. In the case that the first pickup order corresponding to the first substrate does not exist, second alarm information is generated, the second alarm information is used to indicate that the first pickup order corresponding to the first substrate does not exist, and after the staff identifies the second alarm information, the staff can reacquire the first pickup order (for example, the first pickup order is re-determined by using the determination method of the pickup order of the light emitting element in the foregoing steps 301-304).

[0461] The following is an apparatus embodiment of the present application. For details not described in the apparatus embodiment, reference can be made to the foregoing method embodiments.

[0462] FIG. 18 is a structural schematic diagram of a determination apparatus of a pickup order of a light emitting element provided by an embodiment of the present disclosure. Referring to FIG. 18, the determination apparatus 1800 of the pickup order of the light emitting element includes a data acquisition module 1801, a region division module 1802, and a pickup order generation module 1803.

[0463] The data acquisition module 1801 is configured to acquire first substrate data of a first substrate, the first substrate including a plurality of first light emitting elements, and the first substrate data including first position information, the first position information being used to indicate positions of the plurality of first light emitting elements on the first substrate.

[0464] The region division module 1802 is configured to divide the first substrate into a plurality of first regions according to a target rule based on the first position information, and each of the first regions including the plurality of first light emitting elements.

[0465] The pickup order generation module 1803 is configured to determine a first pickup order based on the plurality of first regions, and the first pickup order being used to indicate that the first light emitting elements are picked up according to a first target order and / or a second target order, the first target order including that the first light emitting elements are sequentially picked up from at least two first regions of the plurality of first regions on the first substrate, and the second target order including that the first light emitting elements are sequentially picked up from a same first region on the first substrate.

[0466] Optionally, the region division module 1802 is further configured to divide the first substrate into a plurality of first regions arranged along a first direction based on the first position information, each of the first regions being in a strip shape and a length direction of each of the first regions intersecting the first direction.

[0467] Alternatively,

[0468] The first substrate is divided into a plurality of first regions arranged in a two-dimensional array based on the first position information.

[0469] Alternatively,

[0470] The first substrate is divided into a plurality of first regions based on the first position information and pixel distribution information of a first picture, the first picture includes a plurality of pixels, the plurality of pixels in the first picture are divided into a plurality of first pixel groups according to colors, the colors of the plurality of pixels in the same first pixel group are the same, the colors of the pixels in different first pixel groups are different, each first light emitting element on the first substrate corresponds to a pixel, and each first region corresponds to one of the plurality of first pixel groups.

[0471] Alternatively,

[0472] The first substrate is divided into a plurality of first regions based on the first position information and optical characteristic parameters of the plurality of first light emitting elements on the first substrate, the optical characteristic parameters of the first light emitting elements in the same first region belong to the same parameter interval, and the optical characteristic parameters of the first light emitting elements in different first regions belong to different parameter intervals.

[0473] Optionally, the first picking order is used to indicate picking the first light emitting elements in the second target order, and the region division module 1802 is further configured to divide the plurality of first light emitting elements in the first target region into a plurality of units, the first target region being any one of the plurality of first regions, each unit including a plurality of first light emitting elements, and at least two first light emitting elements in the same unit being arranged continuously in the first direction and / or the second direction, the first direction being the row direction or the column direction, and the second direction intersecting the first direction; and determining the second target order based on the plurality of units, the second target order being used to indicate picking the first light emitting elements from the plurality of units in turn according to the arrangement order between the plurality of units or in a random order.

[0474] Optionally, the region division module 1802 is further configured to divide the plurality of first light emitting elements in the first target region into a plurality of continuous units, each unit including a plurality of first light emitting elements, and at least a plurality of first light emitting elements adjacent in the first direction and / or the second direction in the same unit;

[0475] Alternatively,

[0476] The plurality of first light emitting elements in the first target region are divided into a plurality of units based on pixel distribution information of a second picture, the second picture includes a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to colors, the colors of the plurality of pixels in the same second pixel group are the same, the colors of the pixels in different second pixel groups are different, each first light emitting element in the first target region corresponds to a pixel in the second picture, and each unit corresponds to one of the plurality of second pixel groups.

[0477] Alternatively,

[0478] The first target region is divided into a plurality of units according to the optical characteristic parameters of the plurality of first light emitting elements in the first target region, the optical characteristic parameters of the first light emitting elements in a same unit belong to a same parameter subinterval, and the optical characteristic parameters of the first light emitting elements in different units belong to different parameter subintervals.

[0479] Optionally, the region division module 1802 is further configured to, in the process of traversing the plurality of first light emitting elements in the first target region in the S-shaped, Z-shaped or spiral-shaped sequence, take a plurality of first light emitting elements that are continuous as a unit.

[0480] Optionally, the region division module 1802 is further configured to, in the process of traversing the plurality of first light emitting elements in the first target region in the S-shaped, Z-shaped or spiral-shaped sequence, take a plurality of first light emitting elements that are continuous as a unit.

[0481] Optionally, the region division module 1802 is further configured to, in the process of traversing the plurality of first light emitting elements in the first target region in the S-shaped, Z-shaped or spiral-shaped sequence, take a plurality of first light emitting elements that are continuous as a unit.

[0482] Optionally, the region division module 1802 is further configured to, in the process of traversing the plurality of first light emitting elements in the first target region in the S-shaped, Z-shaped or spiral-shaped sequence, take a plurality of first light emitting elements that are continuous as a unit.

[0483] Optionally, the region division module 1802 is further configured to, in the process of traversing the plurality of first light emitting elements in the first target region in the S-shaped, Z-shaped or spiral-shaped sequence, take a plurality of first light emitting elements that are continuous as a unit.

[0484] Optionally, the region division module 1802 is further configured to, in the process of traversing the plurality of first light emitting elements in the first target region in the S-shaped, Z-shaped or spiral-shaped sequence, take a plurality of first light emitting elements that are continuous as a unit.

[0485] Optionally, the region division module 1802 is further configured to, in the process of traversing the plurality of first light emitting elements in the first target region in the S-shaped, Z-shaped or spiral-shaped sequence, take a plurality of first light emitting elements that are continuous as a unit.

[0486] Optionally, the region division module 1802 is further configured to, in the process of traversing the plurality of first light emitting elements in the first target region in the S-shaped, Z-shaped or spiral-shaped sequence, take a plurality of first light emitting elements that are continuous as a unit.

[0487] Optionally, the region division module 1802 is further configured to divide the plurality of first light emitting elements in the first unit into a plurality of subunits, the first unit being any one of the plurality of units, each subunit including a plurality of first light emitting elements, and at least two first light emitting elements in a same subunit being arranged continuously in a first direction and / or a second direction; and determine a second target sequence based on the plurality of subunits, the second target sequence being further used to indicate that the first light emitting elements are sequentially picked from the plurality of subunits in an order of the plurality of subunits.

[0488] Optionally, the first substrate data further includes appearance data and / or optoelectronic information of the plurality of first light emitting elements, and the data acquisition module 1801 is further configured to determine unqualified first light emitting elements based on the appearance data and / or optoelectronic information of the plurality of first light emitting elements before the first substrate is divided into a plurality of strip-shaped regions based on the first substrate data.

[0489] Optionally, the data obtaining module 1801 is further configured to obtain second substrate data of a second substrate, the first substrate and the second substrate are used to collectively produce a same target substrate, the second substrate comprises a plurality of second light emitting elements, and the second substrate data comprises second position information, the second position information being used to indicate positions of the plurality of second light emitting elements on the second substrate.

[0490] The region dividing module 1802 is further configured to divide the first substrate into a plurality of second regions according to a target rule based on the second position information, and each of the second regions comprises a plurality of second light emitting elements.

[0491] The picking order generating module 1803 is further configured to determine a second picking order based on the plurality of second regions, the second picking order being used to indicate picking the second light emitting elements according to a third target order and / or a fourth target order, the third target order comprising picking the second light emitting elements from at least two second regions on the second substrate in sequence, and the fourth target order comprising picking the second light emitting elements from a same second region on the second substrate in sequence.

[0492] Optionally, the data obtaining module 1801 is further configured to receive a first instruction, the first instruction being used to indicate a manner of determining the first target order and / or the second target order; and the picking order generating module 1803 is further configured to determine the first target order and / or the second target order according to the manner indicated by the first instruction based on the plurality of first regions, so as to determine the first picking order.

[0493] Optionally, the data obtaining module 1801 is further configured to receive a second instruction, the second instruction being used to indicate a manner of dividing the first substrate into the plurality of first regions; and the picking order generating module 1803 is further configured to divide the first substrate into the plurality of first regions according to the manner indicated by the second instruction based on the first position information.

[0494] Optionally, the data obtaining module 1801 is further configured to read the first substrate data from a local storage, or receive the first substrate data manually input by a worker, or receive the first substrate data sent by a computer device.

[0495] Optionally, the picking order generating module 1803 is further configured to generate a transfer scheme of the plurality of first light emitting elements on the first substrate based on the first picking order; and the apparatus further comprises a distribution module 1804, the distribution module 1804 being configured to distribute the transfer scheme of the plurality of first light emitting elements on the first substrate to one or more chip transfer devices.

[0496] FIG. 19 is a structural schematic diagram of a light emitting element picking apparatus provided by one example embodiment of the present disclosure. Referring to FIG. 19, the light emitting element picking apparatus 1900 comprises an obtaining module 1901 and a picking module 1902.

[0497] The acquisition module 1901 is configured to acquire first substrate data of a first substrate, the first substrate comprising a plurality of first light emitting elements, the first substrate being divided into a plurality of first regions, a plurality of first light emitting elements being present in each first region, the first substrate data comprising first position information, the first position information being used to indicate positions of the plurality of first light emitting elements on the first substrate.

[0498] The picking module 1902 is configured to pick the first light emitting elements from the plurality of first regions of the first substrate in a first picking sequence, the first picking sequence being used to indicate picking the first light emitting elements in a first target sequence and / or a second target sequence, the first target sequence comprising picking the first light emitting elements from at least two first regions of the plurality of first regions on the first substrate in sequence, the second target sequence comprising picking the first light emitting elements from the same first region on the first substrate in sequence.

[0499] FIG. 20 is a structural schematic diagram of a light emitting element transfer device according to an example embodiment of the present disclosure. Referring to FIG. 20, the light emitting element transfer device 2000 comprises a first acquisition module 2001, a second acquisition module 2002, and a control module 2003.

[0500] The first acquisition module 2001 is configured to acquire the first picking sequence, the first picking sequence being determined by the method as in steps 301-304.

[0501] The second acquisition module 2002 is configured to acquire a transfer sequence, the transfer sequence being used to indicate a sequence of transferring the first light emitting elements to a target substrate.

[0502] The control module 2003 is configured to pick the first light emitting elements from the first substrate in the first picking sequence by a chip transfer device, and transfer the picked first light emitting elements to the target substrate in the transfer sequence.

[0503] Optionally, the chip transfer device picks the first light emitting elements by a transfer element, the second acquisition module 2002 is further configured to acquire position information of a plurality of arrangement points in the target substrate, the plurality of arrangement points in the target substrate being arranged in an array, each arrangement point being used to arrange one first light emitting element, the position information of the arrangement points being used to indicate positions of the arrangement points in the target substrate; based on the position information of the plurality of arrangement points in the target substrate, the plurality of arrangement points in the target substrate are divided into a plurality of point groups, the plurality of point groups comprising at least one target point group, the target point group comprising a plurality of target arrangement points, the arrangement points in each point group being different; based on the position information of the target arrangement points in the target point group, the transfer sequence is determined, the transfer sequence comprising a movement path of the transfer element and a sequence of the target arrangement points obtaining the first light emitting elements.

[0504] The control module 2003 is further configured to transfer the first light emitting element to the target arrangement point according to a movement path of the transfer element and a sequence of the first light emitting element by the transfer element.

[0505] Optionally, the first acquisition module 2001 is further configured to acquire a first photo of the first substrate. The light emitting element transfer device further comprises an updating module 2004, the updating module 2004 is configured to determine third position information of the plurality of first light emitting elements on the first substrate based on the first photo; and update the first position information based on the third position information.

[0506] Optionally, the first acquisition module 2001 is further configured to acquire a second photo of the first substrate at a set time interval during a process of picking up the first light emitting element from the first substrate according to the first picking sequence and transferring the picked first light emitting element to the target substrate according to the transfer sequence; and the updating module 2004 is configured to determine fourth position information of the plurality of first light emitting elements on the first substrate based on the second photo; and update the first position information based on the fourth position information.

[0507] Optionally, the light emitting element transfer device 2000 further comprises a generation module 2005, the generation module 2005 is configured to generate a first trace file after the light emitting element on the target substrate is transferred, the first trace file comprises an identifier of the first substrate corresponding to the light emitting element on the target substrate, position information of the light emitting element on the target substrate on the corresponding first substrate, and photoelectric information of the light emitting element on the target substrate.

[0508] It should be noted that: when the light emitting element picking sequence determination device provided in the above embodiments determines the light emitting element picking sequence, or when the light emitting element picking device provided in the above embodiments picks up the light emitting element, or when the light emitting element transfer device provided in the above embodiments transfers the light emitting element, only the division of the above functional modules is taken as an example in the actual application, and the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the light emitting element picking sequence determination device and the light emitting element picking sequence determination method provided in the above embodiments belong to the same concept, the light emitting element picking device and the light emitting element picking method provided in the above embodiments belong to the same concept, and the light emitting element transfer device and the light emitting element transfer method provided in the above embodiments belong to the same concept. For specific implementation process, please refer to the method embodiment, which will not be repeated here.

[0509] The division of the modules in the embodiments of the present disclosure is illustrative, and is only a logical function division. In actual implementation, another division manner can be used. In addition, each function module in each embodiment of the present disclosure can be integrated in one processor, or can be physically separated, or two or more modules can be integrated into one module. The integrated module can be realized in the form of hardware, or in the form of a software function module.

[0510] When the integrated module is realized in the form of a software function module and sold or used as an independent product, the integrated module can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present disclosure, essentially or in other words, the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes several instructions to make an end device (which can be a personal computer, a mobile phone, or a communication device, etc.) or a processor execute all or part of the steps of the method of each embodiment of the present disclosure. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0511] FIG. 21 is a structural schematic diagram of a computer device provided by an embodiment of the present disclosure. As shown in FIG. 21, the computer device 2100 includes a processor 2101 and a memory 2102.

[0512] The processor 2101 can include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor 2101 can be implemented in at least one of a hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), a PLA (Programmable Logic Array). The processor 2101 can also include a main processor and a coprocessor, the main processor being a processor for processing data in an awake state, also known as a CPU, and the coprocessor being a low-power processor for processing data in a standby state. In some embodiments, the processor 2101 can be integrated with a GPU (Graphics Processing Unit) that is responsible for rendering and drawing content required to be displayed by the display screen. In some embodiments, the processor 2101 can further include an AI (Artificial Intelligence) processor for processing computing operations related to machine learning.

[0513] The memory 2102 can include one or more computer-readable storage media that can be non-transitory. The memory 2102 can also include a high-speed random access memory, and a nonvolatile memory such as one or more disk storage devices, flash storage devices. In some embodiments, the non-transitory computer-readable storage medium in the memory 2102 is used to store at least one instruction for being executed by the processor 2101 to implement the determination method of the pickup order of the light emitting element, the pickup method of the light emitting element, or the transfer method of the light emitting element provided in the embodiments of the present disclosure.

[0514] Those skilled in the art can understand that the structure shown in FIG. 21 does not constitute a limitation on the computer device 2100, and can include more or fewer components than those shown, or combine certain components, or adopt a different arrangement of components.

[0515] The embodiments of the present disclosure also provide a non-transitory computer-readable storage medium, when the instructions in the storage medium are executed by the processor of the computer device, the computer device can execute the determination method of the pickup order of the light emitting element, the pickup method of the light emitting element, or the transfer method of the light emitting element provided in the embodiments of the present disclosure.

[0516] The embodiment of the present disclosure further provides a computer program product comprising computer programs / instructions which, when executed by a processor, implement the determination method of the pickup order of the light-emitting element, the pickup method of the light-emitting element or the transfer method of the light-emitting element provided in the embodiment of the present disclosure.

[0517] The embodiment of the present disclosure further provides a computer program product comprising computer programs / instructions which, when executed by a processor, implement the determination method of the pickup order of the light-emitting element, the pickup method of the light-emitting element or the transfer method of the light-emitting element provided in the embodiment of the present disclosure.

[0518] The above is only an optional embodiment of the present disclosure, and is not used to limit the present disclosure, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

A method of determining a pickup order of light emitting elements, characterized by, The method comprises: obtaining first substrate data of a first substrate, the first substrate comprising a plurality of first light emitting elements, the first substrate data comprising first position information, the first position information being used to indicate positions of the plurality of first light emitting elements on the first substrate; dividing the first substrate into a plurality of first regions according to a target rule based on the first position information, each of the first regions comprising a plurality of the first light emitting elements; determining a first pickup sequence based on the plurality of first regions, wherein the first pickup sequence is used to indicate picking up the first light emitting elements according to a first target sequence and / or a second target sequence, the first target sequence comprising sequentially picking up the first light emitting elements from at least two of the first regions on the first substrate, and the second target sequence comprising sequentially picking up the first light emitting elements from the same first region on the first substrate. The method of claim 1, wherein The dividing the first substrate into a plurality of first regions according to a target rule based on the first position information comprises: dividing the first substrate into a plurality of first regions arranged along a first direction based on the first position information, each of the first regions being strip-shaped and a length direction of each of the first regions intersecting the first direction; or, dividing the first substrate into a plurality of first regions arranged in a two-dimensional array based on the first position information; or, dividing the first substrate into a plurality of first regions based on the first position information and pixel distribution information of a first picture, the first picture comprising a plurality of pixels, the plurality of pixels in the first picture being divided into a plurality of first pixel groups according to colors, the plurality of pixels in the same first pixel group being of the same color, and the pixels in different first pixel groups being of different colors, each of the first light emitting elements on the first substrate corresponding to a pixel, and each of the first regions corresponding to one of the plurality of first pixel groups; or, dividing the first substrate into a plurality of first regions according to the first position information and optical characteristic parameters of the plurality of first light emitting elements on the first substrate, the optical characteristic parameters of the first light emitting elements in the same first region belonging to the same parameter interval, and the optical characteristic parameters of the first light emitting elements in different first regions belonging to different parameter intervals. The method of claim 1, wherein The first pickup sequence is used to indicate picking up the first light emitting elements according to the second target sequence, The determining the first pickup sequence based on the plurality of first regions comprises: dividing the plurality of first light emitting elements in a first target region into a plurality of units, the first target region being any one of the plurality of first regions, each of the units comprising a plurality of first light emitting elements, at least two of the first light emitting elements in the same unit being arranged continuously in a first direction and / or a second direction, the first direction being a row direction or a column direction, and the second direction intersecting the first direction; determining the second target sequence based on the plurality of units, the second target sequence being used to indicate sequentially picking up the first light emitting elements from the plurality of units according to an arrangement order or a random order between the plurality of units. The method according to claim 3, characterized in that The first target region is divided into a plurality of units according to the pixel distribution information of the second picture, the second picture comprises a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to color, the plurality of pixels in the same second pixel group are of the same color, and the plurality of pixels in different second pixel groups are of different colors, each first light emitting element in the first target region corresponds to a pixel in the second picture, and each unit corresponds to one of the plurality of second pixel groups. The first target region is divided into a plurality of units according to the pixel distribution information of the second picture, the second picture comprises a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to color, the plurality of pixels in the same second pixel group are of the same color, and the plurality of pixels in different second pixel groups are of different colors, each first light emitting element in the first target region corresponds to a pixel in the second picture, and each unit corresponds to one of the plurality of second pixel groups. The first target region is divided into a plurality of units according to the pixel distribution information of the second picture, the second picture comprises a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to color, the plurality of pixels in the same second pixel group are of the same color, and the plurality of pixels in different second pixel groups are of different colors, each first light emitting element in the first target region corresponds to a pixel in the second picture, and each unit corresponds to one of the plurality of second pixel groups. The first target region is divided into a plurality of units according to the pixel distribution information of the second picture, the second picture comprises a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to color, the plurality of pixels in the same second pixel group are of the same color, and the plurality of pixels in different second pixel groups are of different colors, each first light emitting element in the first target region corresponds to a pixel in the second picture, and each unit corresponds to one of the plurality of second pixel groups. The first target region is divided into a plurality of units according to the pixel distribution information of the second picture, the second picture comprises a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to color, the plurality of pixels in the same second pixel group are of the same color, and the plurality of pixels in different second pixel groups are of different colors, each first light emitting element in the first target region corresponds to a pixel in the second picture, and each unit corresponds to one of the plurality of second pixel groups. The first target region is divided into a plurality of units according to the pixel distribution information of the second picture, the second picture comprises a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to color, the plurality of pixels in the same second pixel group are of the same color, and the plurality of pixels in different second pixel groups are of different colors, each first light emitting element in the first target region corresponds to a pixel in the second picture, and each unit corresponds to one of the plurality of second pixel groups. The method according to claim 4, characterized in that The first target region is divided into a plurality of units according to the pixel distribution information of the second picture, the second picture comprises a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to color, the plurality of pixels in the same second pixel group are of the same color, and the plurality of pixels in different second pixel groups are of different colors, each first light emitting element in the first target region corresponds to a pixel in the second picture, and each unit corresponds to one of the plurality of second pixel groups. The first target region is divided into a plurality of units according to the pixel distribution information of the second picture, the second picture comprises a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to color, the plurality of pixels in the same second pixel group are of the same color, and the plurality of pixels in different second pixel groups are of different colors, each first light emitting element in the first target region corresponds to a pixel in the second picture, and each unit corresponds to one of the plurality of second pixel groups. The first target region is divided into a plurality of units according to the pixel distribution information of the second picture, the second picture comprises a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to color, the plurality of pixels in the same second pixel group are of the same color, and the plurality of pixels in different second pixel groups are of different colors, each first light emitting element in the first target region corresponds to a pixel in the second picture, and each unit corresponds to one of the plurality of second pixel groups. The first target region is divided into a plurality of units according to the pixel distribution information of the second picture, the second picture comprises a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to color, the plurality of pixels in the same second pixel group are of the same color, and the plurality of pixels in different second pixel groups are of different colors, each first light emitting element in the first target region corresponds to a pixel in the second picture, and each unit corresponds to one of the plurality of second pixel groups. The first target region is divided into a plurality of units according to the pixel distribution information of the second picture, the second picture comprises a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to color, the plurality of pixels in the same second pixel group are of the same color, and the plurality of pixels in different second pixel groups are of different colors, each first light emitting element in the first target region corresponds to a pixel in the second picture, and each unit corresponds to one of the plurality of second pixel groups. The first target region is divided into a plurality of units according to the pixel distribution information of the second picture, the second picture comprises a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to color, the plurality of pixels in the same second pixel group are of the same color, and the plurality of pixels in different second pixel groups are of different colors, each first light emitting element in the first target region corresponds to a pixel in the second picture, and each unit corresponds to one of the plurality of second pixel groups. The first target region is divided into a plurality of units according to the pixel distribution information of the second picture, the second picture comprises a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to color, the plurality of pixels in the same second pixel group are of the same color, and the plurality of pixels in different second pixel groups are of different colors, each first light emitting element in the first target region corresponds to a pixel in the second picture, and each unit corresponds to one of the plurality of second pixel groups. The method according to claim 3, characterized in that The first target region is divided into a plurality of units according to the pixel distribution information of the second picture, the second picture comprises a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to color, the plurality of pixels in the same second pixel group are of the same color, and the plurality of pixels in different second pixel groups are of different colors, each first light emitting element in the first target region corresponds to a pixel in the second picture, and each unit corresponds to one of the plurality of second pixel groups. The first target region is divided into a plurality of units according to the pixel distribution information of the second picture, the second picture comprises a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to color, the plurality of pixels in the same second pixel group are of the same color, and the plurality of pixels in different second pixel groups are of different colors, each first light emitting element in the first target region corresponds to a pixel in the second picture, and each unit corresponds to one of the plurality of second pixel groups. The first target region is divided into a plurality of units according to the pixel distribution information of the second picture, the second picture comprises a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to color, the plurality of pixels in the same second pixel group are of the same color, and the plurality of pixels in different second pixel groups are of different colors, each first light emitting element in the first target region corresponds to a pixel in the second picture, and each unit corresponds to one of the plurality of second pixel groups. The first target region is divided into a plurality of units according to the pixel distribution information of the second picture, the second picture comprises a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to color, the plurality of pixels in the same second pixel group are of the same color, and the plurality of pixels in different second pixel groups are of different colors, each first light emitting element in the first target region corresponds to a pixel in the second picture, and each unit corresponds to one of the plurality of second pixel groups. The first target region is divided into a plurality of units according to the pixel distribution information of the second picture, the second picture comprises a plurality of pixels, the plurality of pixels in the second picture are divided into a plurality of second pixel groups according to color, the plurality of pixels in the same second pixel group are of the same color, and the plurality of pixels in different second The method according to claim 3, characterized in that a number of the first light emitting elements picked up from each of the first regions continuously is equal to a number of the units included in the first regions; the first picking-up sequence is used to indicate that the first light emitting elements are picked up in the following order: taking out each unit in an i-th first region from the i-th first region in the plurality of first regions according to the second target sequence; taking out each unit in a next first region of the i-th first region from the next first region of the i-th first region according to the second target sequence, the i-th first region and the next first region of the i-th first region corresponding to any two adjacent first regions in the first target sequence; wherein i is an integer, and i is less than or equal to a number of the first regions included in the first substrate. The method according to claim 3, characterized in that a number of the first light emitting elements picked up from each of the first regions continuously is less than a number of the units included in the first regions; the first picking-up sequence is used to indicate that the first light emitting elements are picked up in the following order: taking out a j-th unit from an i-th first region, and taking out the j-th unit from a next first region of the i-th first region, the i-th first region and the next first region of the i-th first region corresponding to two adjacent first regions in the first target sequence; after the j-th unit is taken out from each of the plurality of first regions, reordering the plurality of first regions to update the first target sequence; taking out a j+1-th unit from the i-th first region, and then determining a next first region of the i-th first region based on the updated first target sequence, taking out the j+1-th unit from the next first region of the i-th first region, the j-th unit and the j+1-th unit corresponding to two adjacent units in the second target sequence; wherein i and j are integers, i is less than or equal to a number of the first regions included in the first substrate, and j is less than or equal to a number of the units included in the first regions. The method according to any one of claims 4 to 8, characterized in that the second target sequence comprises sequentially picking up at least part of the first light emitting elements in each of the units in an S shape, a Z shape or a spiral shape. The method according to any one of claims 4 to 8, characterized in that the determining the second target sequence based on the plurality of units comprises: dividing a plurality of first light emitting elements in a first unit into a plurality of sub-units, the first unit being any one of the plurality of units, each sub-unit comprising a plurality of first light emitting elements, and at least two first light emitting elements in a same sub-unit being arranged continuously in the first direction and / or the second direction; determining the second target sequence based on the plurality of sub-units, the second target sequence being further used to indicate that the first light emitting elements are sequentially picked up from the plurality of sub-units in an arrangement order or a random order among the plurality of sub-units. The method of claim 10, wherein the dividing a plurality of first light emitting elements in a first unit into a plurality of sub-units comprises: arranging continuous N first light emitting units as a unit in a process of traversing the plurality of first light emitting elements in the first unit in an S shape, a Z shape or a spiral shape; or The first unit is divided into a plurality of two-dimensional arrays, and each first light emitting element in each array is taken as a sub-unit. N is a positive integer. The method of claim 10, wherein The second target sequence is further used to indicate sequentially picking up all the first light emitting elements in each sub-unit in an S shape, a Z shape, or a spiral shape. The method according to any one of claims 1 to 2, 4 to 8 and 11 to 12, characterized in that, The first target sequence comprises sequentially picking up the first light emitting elements from at least two first regions on the first substrate in an arrangement sequence or a random sequence of the at least two first regions, and the second target sequence comprises sequentially picking up the first light emitting elements from a same first region on the first substrate in an arrangement sequence or a random sequence of the first light emitting elements. The method according to claim 1 or 2, characterized in that The second target sequence comprises sequentially picking up at least part of the first light emitting elements from a same first region in an S shape, a Z shape, or a spiral shape. The method according to claim 1 or 2, characterized in that The plurality of first regions are divided according to the first position information and optical characteristic parameters of the plurality of first light emitting elements on the first substrate. The number of first light emitting elements picked up from a second target region in the first substrate is a first number, the first number is determined according to a set ratio and the number of third light emitting elements, the third light emitting elements and the first light emitting elements are used for a same target substrate, and the third light emitting elements and the first light emitting elements are used to emit light of the same or different colors, and the second target region is one of the first regions in the first substrate. The method according to any one of claims 1 to 2, 4 to 8 and 11 to 12, characterized in that, The first substrate data further comprises appearance data and / or optoelectronic information of the plurality of first light emitting elements, and before the first substrate is divided into a plurality of strip-shaped regions based on the first substrate data, the method further comprises: Based on the appearance data and / or optoelectronic information of the plurality of first light emitting elements, determining unqualified first light emitting elements. The method of claim 16, wherein The first picking sequence is used to indicate picking up the first light emitting elements except the unqualified first light emitting elements. The method according to any one of claims 1 to 2, 4 to 8, 11 to 12 and 17, characterized in that, The method further comprises: obtaining second substrate data of a second substrate, the first substrate and the second substrate are used to jointly produce a same target substrate, the second substrate comprises a plurality of second light emitting elements, and the second substrate data comprises second position information, the second position information is used to indicate positions of the plurality of second light emitting elements on the second substrate; based on the second position information, dividing the first substrate into a plurality of second regions according to a target rule, and a plurality of second light emitting elements exist in each second region; based on the plurality of second regions, determining a second picking sequence, the second picking sequence is used to indicate picking up the second light emitting elements according to a third target sequence and / or a fourth target sequence, the third target sequence comprises sequentially picking up the second light emitting elements from at least two second regions on the second substrate, and the fourth target sequence comprises sequentially picking up the second light emitting elements from a same second region on the second substrate. The method of claim 1, wherein The method further comprises: receiving a first instruction, the first instruction is used to indicate a manner of determining the first target sequence and / or the second target sequence. The method comprises: determining a first picking order based on the plurality of first regions, wherein the first picking order is determined according to a first target order and / or a second target order based on the plurality of first regions. The method of claim 1, wherein The method further comprises: receiving a second instruction, wherein the second instruction is used to indicate a manner of dividing the first substrate into the plurality of first regions; The method further comprises: dividing the first substrate into the plurality of first regions according to the first position information based on a target rule. The method of claim 1, wherein The method further comprises: dividing the first substrate into the plurality of first regions according to the second instruction based on the first position information. The method further comprises: reading the first substrate data from a local storage; or, receiving the first substrate data inputted manually by a staff; A pickup method of a light emitting element characterized by comprising: or, receiving the first substrate data sent by a computer device. The method comprises: The method of claim 22, wherein obtaining first substrate data of a first substrate, wherein the first substrate comprises a plurality of first light emitting elements, the first substrate is divided into a plurality of first regions, each of the first regions comprises a plurality of the first light emitting elements, and the first substrate data comprises first position information, wherein the first position information is used to indicate positions of the plurality of first light emitting elements on the first substrate; The method according to claim 22 or 23, characterized in that picking the first light emitting elements from the plurality of first regions of the first substrate according to a first picking order, wherein the first picking order is used to indicate picking the first light emitting elements according to a first target order and / or a second target order, the first target order comprises picking the first light emitting elements from at least two first regions of the plurality of first regions on the first substrate in sequence, and the second target order comprises picking the first light emitting elements from a same first region of the plurality of first regions on the first substrate in sequence. The first target order comprises picking at least part of the first light emitting elements from each of the first regions in an S-shaped, Z-shaped or spiral manner according to an arrangement order of the plurality of first regions or a random order. The method of claim 24, wherein Each of the units comprises a plurality of the first light emitting elements. The second target order comprises picking at least part of the first light emitting elements from each of the units in an S-shaped, Z-shaped or spiral manner according to an arrangement order of the plurality of units or a random order. A transfer method of a light emitting element characterized by comprising: Each of the sub-units comprises a plurality of the first light emitting elements. The second target order comprises picking all of the first light emitting elements from each of the sub-units in an S-shaped, Z-shaped or spiral manner according to an arrangement order of the plurality of sub-units or a random order. The method comprises: obtaining a first picking order, wherein the first picking order is determined by using the method according to any one of claims 1 to 19; obtaining a transfer order, wherein the transfer order is used to indicate an order of transferring the first light emitting elements to a target substrate. The chip transfer device picks up the first light emitting elements from the first substrate according to the first picking-up sequence and transfers the picked-up first light emitting elements to the target substrate according to the transfer sequence. The transfer method according to claim 26, characterized in that The chip transfer device picks up the first light emitting elements by a transfer element, The method further comprises: obtaining position information of a plurality of arrangement points in the target substrate, the plurality of arrangement points in the target substrate are arranged in an array, each of the arrangement points is used for arranging a first light emitting element, and the position information of the arrangement points is used for indicating positions of the arrangement points in the target substrate; based on the position information of the plurality of arrangement points in the target substrate, the plurality of arrangement points in the target substrate are divided into a plurality of point groups, the plurality of point groups include at least one target point group, the target point group includes a plurality of target arrangement points, and the arrangement points in each of the point groups are different; based on the position information of each of the target arrangement points in the target point group, a transfer sequence is determined, the transfer sequence includes a moving path of the transfer element and a sequence in which each of the target arrangement points obtains the first light emitting element; The method further comprises: transferring the first light emitting elements to the target arrangement points by the transfer element according to the moving path of the transfer element and the sequence in which each of the target arrangement points obtains the first light emitting element. In the target point group, at least one of the target arrangement points is spaced apart from other target arrangement points in the target point group by at least one arrangement point in a first direction and / or a second direction. The method according to claim 26 or 27, characterized in that The method further comprises: obtaining a first photo of the first substrate; determining third position information of the plurality of first light emitting elements of the first substrate based on the first photo; updating the first position information based on the third position information. The method of claim 28, wherein The method further comprises: during the process of picking up the first light emitting elements from the first substrate according to the first picking-up sequence by the chip transfer device and transferring the picked-up first light emitting elements to the target substrate according to the transfer sequence, obtaining a second photo of the first substrate at a set time interval; determining fourth position information of the plurality of first light emitting elements of the first substrate based on the second photo; updating the first position information based on the fourth position information. The method according to any one of claims 26 or 27 and 29, characterized in that The method further comprises: after the transfer of the light emitting elements on the target substrate is completed, generating a first traceability file, the first traceability file including an identifier of the first substrate corresponding to the light emitting elements on the target substrate, position information of the light emitting elements on the target substrate on the corresponding first substrate, and optoelectronic information of the light emitting elements on the target substrate. The method according to any one of claims 26 or 27 and 29, characterized in that The method further comprises: generating a transfer scheme of the plurality of first light emitting elements on the first substrate based on the first picking-up sequence; distributing the transfer scheme of the plurality of first light emitting elements on the first substrate to one or more chip transfer devices. A device for determining a pickup order of light emitting elements, characterized in that The device comprises: The data acquisition module is configured to acquire first substrate data of a first substrate, the first substrate comprising a plurality of first light emitting elements, the first substrate data comprising first position information, the first position information being used to indicate positions of the plurality of first light emitting elements on the first substrate. The region division module is configured to divide the first substrate into a plurality of first regions according to a target rule based on the first position information, and each of the first regions comprises a plurality of the first light emitting elements. The pickup sequence generation module is configured to determine a first pickup sequence based on the plurality of first regions, wherein the first pickup sequence is used to indicate picking up the first light emitting elements according to a first target sequence and / or a second target sequence, the first target sequence comprising picking up the first light emitting elements from at least two first regions of the plurality of first regions on the first substrate in sequence, and the second target sequence comprising picking up the first light emitting elements from a same first region on the first substrate in sequence. The pickup order determining apparatus according to claim 32, wherein The pickup sequence generation module is further configured to generate a transfer scheme of the plurality of first light emitting elements on the first substrate based on the first pickup sequence. The apparatus further comprises a distribution module configured to distribute the transfer scheme of the plurality of first light emitting elements on the first substrate to one or more chip transfer devices. A pickup device of a light emitting element characterized by comprising: The apparatus comprises: The acquisition module is configured to acquire a first pickup sequence, the first pickup sequence being determined by the method according to any one of claims 1 to 21. The control module is configured to pick up the first light emitting elements from the first substrate according to the first pickup sequence by a chip transfer device. A transfer device of a light emitting element characterized by comprising: The apparatus comprises: The first acquisition module is configured to acquire a first pickup sequence, the first pickup sequence being determined by the method according to any one of claims 1 to 21. The second acquisition module is configured to acquire a transfer sequence, the transfer sequence being used to indicate a sequence of transferring the first light emitting elements to a target substrate. The control module is configured to pick up the first light emitting elements from the first substrate according to the first pickup sequence by a chip transfer device, and transfer the picked-up first light emitting elements to the target substrate according to the transfer sequence. A computer device, characterized in that, The computer device comprises a memory and a processor, and at least one computer program is stored in the memory, and the at least one computer program is loaded and executed by the processor to implement the method according to any one of claims 1 to 21 or any one of claims 22 to 25 or any one of claims 26 to 31. A computer-readable storage medium, characterized by The computer readable storage medium stores at least one computer program, and the at least one computer program is loaded and executed by the processor to implement the method according to any one of claims 1 to 21 or any one of claims 22 to 25 or any one of claims 26 to 31. A computer program product comprising computer programs / instructions, characterized in that, The computer program / instruction is executed by the processor to implement the method according to any one of claims 1 to 21 or any one of claims 22 to 25 or any one of claims 26 to 31.

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