Method and device for determining point map of micro inorganic light emitting diode in substrate

Abstract

The disclosed embodiments provide a method and device for determining a point map of a micro-inorganic light-emitting diode in a substrate. By acquiring a substrate with a micro-inorganic light-emitting diode fixed thereon, the micro-inorganic light-emitting diode is randomly fixed to the pad of the substrate. In this way, each micro-inorganic light-emitting diode only needs to be placed according to the position of the micro-inorganic light-emitting diode marked on the structural drawing, and the requirements of the point map for the order of the micro-inorganic light-emitting diodes are ignored, as long as the structural requirements are met. The order of placing the micro-inorganic light-emitting diodes is not considered when designing the substrate, which can save design time and reduce workload. At the same time, in the later software debugging and screen display, there is no need to manually map the pins and the order, which also saves work time.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to a method and device for determining a point map of a micro inorganic light emitting diode in a substrate. Background Art

[0002] With the development of technology, the application scope of substrates formed by miniature inorganic light-emitting diodes such as mini light emitting diodes (Mini LED) and micro light emitting diodes (Micro LED) is constantly expanding. For example, they can be used as backlight sources of display devices or as display screens. Summary of the invention

[0003] The disclosed embodiment provides a method for determining a point map of a micro inorganic light emitting diode in a substrate, comprising:

[0004] Obtaining a substrate; wherein a micro inorganic light emitting diode is fixed on the substrate;

[0005] Acquire a detection image of the substrate on one side of which the micro inorganic light emitting diode is fixed;

[0006] Determining the substrate coordinates of each of the micro inorganic light emitting diodes in the substrate according to the detection image and the predetermined coordinate conversion relationship;

[0007] A point map corresponding to the micro inorganic light emitting diode is formed according to the determined substrate coordinates.

[0008] In some examples, determining the substrate coordinates of each of the micro-inorganic light emitting diodes in the substrate according to the detection image and the predetermined coordinate conversion relationship includes:

[0009] Determine the image coordinates of the micro-inorganic light emitting diodes present in the detection image in the detection image;

[0010] The substrate coordinates of each of the micro-inorganic light emitting diodes in the substrate are determined according to the image coordinates of each of the micro-inorganic light emitting diodes and a predetermined coordinate conversion relationship.

[0011] In some examples, the detection image is acquired by using an image collector disposed on a side of the substrate facing the micro inorganic light emitting diode.

[0012] In some examples, determining the substrate coordinates of each of the micro-inorganic light emitting diodes in the substrate according to the image coordinates of each of the micro-inorganic light emitting diodes and a predetermined coordinate conversion relationship includes:

[0013] For each micro inorganic light emitting diode, converting the image coordinates of the micro inorganic light emitting diode into array coordinates of the micro inorganic light emitting diode in the photosensitive element array of the image collector;

[0014] The image array coordinates of the micro-inorganic light emitting diodes are converted into substrate coordinates of the micro-inorganic light emitting diodes in the substrate.

[0015] In some examples, the following formula is used to convert the image coordinates of the micro-inorganic light-emitting diode into the array coordinates of the micro-inorganic light-emitting diode in the photosensitive element array of the image collector:

[0016]

[0017]

[0018] Among them, m1 represents the horizontal coordinate of the array coordinates of the micro inorganic light emitting diode, n1 represents the vertical coordinate of the array coordinates of the micro inorganic light emitting diode, x represents the horizontal coordinate of the image coordinates of the micro inorganic light emitting diode, y represents the vertical coordinate of the image coordinates of the micro inorganic light emitting diode, f represents the focal length of the image collector, and Xp*Yp represents the resolution of the image collector.

[0019] In some examples, the image array coordinates of the micro-inorganic light emitting diodes are converted into substrate coordinates of the micro-inorganic light emitting diodes in the substrate using the following formula:

[0020]

[0021]

[0022] Among them, u represents the horizontal coordinate of the substrate coordinates of the micro inorganic light emitting diode, v represents the vertical coordinate of the substrate coordinates of the micro inorganic light emitting diode, m1 represents the horizontal coordinate of the array coordinates of the micro inorganic light emitting diode, n1 represents the vertical coordinate of the array coordinates of the micro inorganic light emitting diode, f represents the focal length of the image collector, and L represents the object distance of the image collector.

[0023] In some examples, acquiring a detection image of the substrate on one side of which the micro-inorganic light-emitting diode is fixed includes:

[0024] When the micro-inorganic light emitting diode is turned on, a detection image of the substrate on one side where the micro-inorganic light emitting diode is fixed is acquired.

[0025] In some examples, the substrate has a plurality of light zones, each of which has at least one micro inorganic light emitting diode;

[0026] When the micro inorganic light emitting diode is lit, obtaining a detection image of the substrate on one side of which the micro inorganic light emitting diode is fixed comprises:

[0027] The plurality of lamp areas are controlled to light up at the same time, and for each lamp area, when the lamp area is lit up, a detection image of a side of the substrate where the micro inorganic light emitting diode is fixed is collected.

[0028] The driving method of a micro inorganic light emitting diode provided by an embodiment of the present invention comprises:

[0029] Establishing a mapping relationship according to the point map corresponding to the micro inorganic light emitting diode;

[0030] According to the established mapping relationship, driving the micro inorganic light emitting diode in the substrate to emit light;

[0031] Wherein, the point map is formed by adopting the above method.

[0032] In some examples, at least one light area of ​​the light-emitting substrate is electrically connected to a pin of the light-emitting driving chip;

[0033] The step of establishing a mapping relationship according to the point map corresponding to the micro inorganic light emitting diode comprises:

[0034] According to the point map, a mapping relationship is established between the lamp area in the light-emitting substrate and each pin of the light-emitting driving chip and stored.

[0035] In some examples, driving the micro inorganic light emitting diode in the substrate to emit light according to the established mapping relationship includes:

[0036] According to the mapping relationship, the light driving chip is controlled through the mainboard signal to control the light zone.

[0037] The device for determining a point map of a micro inorganic light emitting diode in a substrate provided by an embodiment of the present invention comprises:

[0038] A substrate acquisition unit is configured to acquire a substrate; wherein a micro inorganic light emitting diode is fixed on the substrate;

[0039] An image collector configured to acquire a detection image of the substrate on one side of which the micro inorganic light emitting diode is fixed;

[0040] A coordinate acquisition unit, configured to determine the substrate coordinates of each of the micro inorganic light emitting diodes in the substrate according to the detection image and a predetermined coordinate conversion relationship;

[0041] The point map determining unit is configured to form a point map corresponding to the micro inorganic light emitting diode according to the determined substrate coordinates.

[0042] In some examples, a focal point of the image collector coincides with a center point of the substrate.

[0043] The driving device of a micro inorganic light emitting diode provided by an embodiment of the present invention comprises:

[0044] A mapping establishment unit, configured to establish a mapping relationship according to a point map corresponding to the micro inorganic light emitting diode;

[0045] A main control unit is configured to drive the micro inorganic light emitting diode in the substrate to emit light according to the established mapping relationship;

[0046] A storage unit, configured to store the point map;

[0047] Wherein, the point map is formed by adopting the above method.

[0048] The computer-readable storage medium provided by the embodiment of the present invention stores a computer program thereon, which, when executed by a processor, implements the steps of the method for determining the point map of the micro-inorganic light-emitting diode in the substrate or the steps of the method for driving the micro-inorganic light-emitting diode.

[0049] The computer device provided by an embodiment of the present invention includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the steps of the method for determining the point map of the micro-inorganic light-emitting diode in the substrate or the steps of the method for driving the micro-inorganic light-emitting diode are implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a flow chart of a method for determining a point map of a micro inorganic light emitting diode in a substrate in an embodiment of the present disclosure;

[0051] Figure 2 Some structural schematic diagrams of the substrate in the embodiments of the present disclosure;

[0052] Figure 3 It is a structural schematic diagram of a substrate and a light-emitting driving chip in an embodiment of the present disclosure;

[0053] Figure 4a are other structural schematic diagrams of the substrate in the embodiments of the present disclosure;

[0054] Figure 4b Some structural schematic diagrams of detection images in the embodiments of the present disclosure;

[0055] Figure 5a are other structural schematic diagrams of the substrate in the embodiments of the present disclosure;

[0056] Figure 5b are other structural schematic diagrams of detection images in the embodiments of the present disclosure;

[0057] Figure 6 Some structural schematic diagrams of image collectors and substrates in the embodiments of the present disclosure;

[0058] Figure 7a Some equivalent optical path diagrams of the image collector and the substrate in the embodiment of the present disclosure;

[0059] Figure 7b is a schematic diagram of some coordinate transformations of the image collector and the substrate in the embodiment of the present disclosure;

[0060] Figure 8 is a schematic diagram of the structure of a point map in an embodiment of the present disclosure;

[0061] Fig. 9 is a flow chart of a driving method of a micro inorganic light emitting diode in an embodiment of the present disclosure;

[0062] Fig.10 It is a structural schematic diagram of a device for determining a point map of a micro inorganic light emitting diode in a substrate in an embodiment of the present disclosure;

[0063] Fig.11 is a schematic structural diagram of a driving device for a micro inorganic light emitting diode in an embodiment of the present disclosure;

[0064] Fig.12 Some other flow charts in the embodiments of the present disclosure. DETAILED DESCRIPTION

[0065] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. And in the absence of conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present disclosure.

[0066] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0067] It should be noted that the sizes and shapes of the figures in the accompanying drawings do not reflect the actual proportions, and are only intended to illustrate the present disclosure. The same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions.

[0068] Typically, the substrate is provided with various signal lines for transmitting signals to the micro inorganic light emitting diode and pads connected to the positive and negative electrodes of the micro inorganic light emitting diode. In addition, the substrate also has a pad (PDA) and a micro inorganic light emitting diode (e.g., Mini LED, Micro LED, μLED) fixed to the pad. In the process of preparing the substrate, various signal lines for transmitting signals to the micro inorganic light emitting diode and pads connected to the positive and negative electrodes of the micro inorganic light emitting diode are first formed on the substrate, so that the fixed position of the micro inorganic light emitting diode can be determined based on these pads. Afterwards, according to the position of these pads on the substrate, a point map of the substrate coordinates of the micro inorganic light emitting diode on the substrate is manually written. Afterwards, according to the written point map, the micro inorganic light emitting diodes are first placed according to the corresponding substrate coordinates, and then the placed micro inorganic light emitting diodes are fixed to the pads of the substrate in sequence. After the substrate is prepared, the substrate will be tested. In the testing process, it is necessary not only to obtain the prepared substrate, but also to obtain the substrate's point map, so as to conduct subsequent tests on the substrate in combination with the point map to determine whether the substrate is a qualified product. In addition, when driving the substrate to display a normal picture, the micro inorganic light-emitting diode can also be driven to emit light according to the point map.

[0069] However, since the dot map needs to be manually written, the manual workload increases, which increases the design time of the substrate. In addition, in the process of preparing the substrate, the micro inorganic light-emitting diodes need to be sorted according to the dot map first, and then the micro inorganic light-emitting diodes need to be fixed to the substrate in sequence according to the coordinates in the dot map, which further increases the time for preparing the substrate.

[0070] In addition, due to the excessive number of micro-inorganic light-emitting diodes on the substrate, which can easily be several thousand, and the size of the micro-inorganic light-emitting diodes is small, while the pad size is large, the micro-inorganic light-emitting diodes need to be placed at a fixed spacing on the pad. When laying out the micro-inorganic light-emitting diodes on the substrate (such as PCB), they need to be placed one by one according to the given point map. Not only do they need to correspond to the corresponding coordinates one by one, but they also need to distinguish the serial numbers of each micro-inorganic light-emitting diode, which increases the difficulty and workload of layout. In addition, in the PCB file, the micro-inorganic light-emitting diodes are disordered after being imported, and need to be laid out according to the structure diagram and point map, and the position on the pad is determined according to the point and coordinates.

[0071] Based on this, the disclosed embodiment provides a method and device for determining a point map of a micro-inorganic light-emitting diode in a substrate. The detection image of the micro-inorganic light-emitting diode on the substrate is collected by an image collector, and the pixel points in the detection image where the micro-inorganic light-emitting diode is located are recorded. The coordinate position of the micro-inorganic light-emitting diode on the substrate is calculated, so as to realize the automatic mapping of the control pins of the light-emitting driver chip and the partition where it is located, without the need to manually write the point map, and at the same time saving the time of substrate layout design. In addition, the substrate with the micro-inorganic light-emitting diode fixed is obtained by randomly fixing the micro-inorganic light-emitting diode to the pad of the substrate, so that each micro-inorganic light-emitting diode only needs to be placed according to the position of the micro-inorganic light-emitting diode marked on the structural drawing, ignoring the requirements of the point map for the order of the micro-inorganic light-emitting diode, as long as the structural requirements are met. When designing the substrate, the order of placing the micro-inorganic light-emitting diode is not considered, which can save design time and reduce workload. At the same time, in the later software debugging and screen display, it is also possible to map the pins and the order manually, which also saves working time.

[0072] Furthermore, a mapping relationship can be established based on the bitmap, so that in the subsequent testing process, the substrate can be tested according to the established mapping relationship to determine whether the substrate is a qualified product. Furthermore, when the substrate is driven to display a normal picture, the micro inorganic light-emitting diode can also be driven to emit light according to the established mapping relationship.

[0073] The present disclosure provides a method for distributing and controlling micro inorganic light emitting diodes in a substrate, such as Figure 1 As shown, the following steps may be included:

[0074] S100: Obtain a substrate.

[0075] In the embodiment of the present invention, a micro inorganic light emitting diode is fixed on the substrate. Exemplarily, during preparation, the micro inorganic light emitting diode ML can be randomly fixed to the pad of the substrate 10. For example, during preparation, the micro inorganic light emitting diode ML can be randomly fixed to the pad of the substrate 10 by welding, buckling, hot pressing, placement, etc.

[0076] Exemplarily, a preparation device may be used to randomly fix the micro inorganic light emitting diodes ML to the pads of the substrate 10. For example, a large number of micro inorganic light emitting diodes ML are first provided, and then the substrate preparation unit may directly fix the micro inorganic light emitting diodes ML to the pads of the substrate 10 one by one without following a dot map or other rules. For example, one micro inorganic light emitting diode ML may be fixed to a pad at the center of the substrate 10 this time, and another micro inorganic light emitting diode ML may be fixed to a pad at the edge of the substrate 10 the next time, and other micro inorganic light emitting diodes ML may be fixed to pads at other positions the next time, thereby fixing the micro inorganic light emitting diodes ML to the pads of the substrate 10 one by one without a specific rule, so that each pad on the substrate is fixed with a corresponding micro inorganic light emitting diode ML, such as Figure 2 In some cases, for example, some of the pads may be fixed with corresponding micro inorganic light emitting diodes.

[0077] S200, obtaining a detection image of the substrate on one side of which the micro inorganic light emitting diode is fixed.

[0078] For example, in combination Figure 6 As shown, an image collector SX (for example, a camera or a video camera) can be used to collect a detection image PS of the substrate 10 on the side where the micro inorganic light emitting diode ML is fixed, so as to obtain a detection image PS of the substrate 10 on the side where the micro inorganic light emitting diode ML is fixed. It should be noted that the image collector SX is arranged on the side of the substrate 10 facing the micro inorganic light emitting diode ML. In addition, the focus of the image collector SX coincides with the center point of the substrate 10. In this way, when the coordinates of the substrate are calculated later, this center point is used as the origin to facilitate the calculation of the coordinates of the substrate.

[0079] Exemplarily, when the image collector SX is mechanically installed, a calibration plate may be installed, so that the calibration plate can be used to fix the position of the image collector SX to ensure that the focus of the auxiliary image collector SX coincides with the center point of the substrate 10 .

[0080] In the embodiment of the present disclosure, after step S100 and before step S200, the light-emitting driver chip 20 may be electrically connected to the substrate so that one pin of the light-emitting driver chip 20 is electrically connected to at least one light zone. For example, one pin of the light-emitting driver chip 20 may be electrically connected to one light zone. Figure 3 As shown, the light-emitting driver chip 20 has pins pin1, pin2, pin3, pin4, and pin5. Pin pin1 is connected to the light zone DQ1, pin pin2 is connected to the light zone DQ2, pin pin3 is connected to the light zone DQ3, pin pin4 is connected to the light zone DQ4, and pin pin5 is connected to the light zone DQ5. In this way, the pins and the light zones are automatically mapped, so that the micro inorganic light-emitting diodes ML in all the light zones can be lit in sequence according to the pin sequence of the light-emitting driver chip 20. Of course, in actual applications, the number of light zones electrically connected to one pin of the light-emitting driver chip 20 can be determined according to actual applications, and is not limited here.

[0081] Furthermore, step S200 of acquiring the detection image PS of the substrate 10 on the side where the micro-inorganic light emitting diode ML is fixed may include: acquiring the detection image of the substrate on the side where the micro-inorganic light emitting diode is fixed when the micro-inorganic light emitting diode is lit. In this way, the substrate coordinates of the brighter micro-inorganic light emitting diode in the detection image can be determined, thereby improving accuracy.

[0082] It should be noted that, combined with Figure 2 As shown, the substrate 10 has a plurality of lamp areas DQ, each lamp area DQ has one, two, three, four or more micro inorganic light emitting diodes ML, each lamp area DQ is connected to a pin of the light emitting driver chip 20, and one pin of the light emitting driver chip is connected to at least one lamp area DQ, which is not limited here. For example, the micro inorganic light emitting diodes ML in the same lamp area are connected in series between the voltage driving end and the signal input end of the light emitting driver chip 20. In practical applications, a corresponding voltage is applied to the voltage driving end, and a corresponding signal is input to the signal input end of the light emitting driver chip 20, so that all the micro inorganic light emitting diodes ML in the lamp area can be driven to emit light simultaneously.

[0083] It should be noted that the number of micro inorganic light emitting diodes ML in each light zone may be the same or different, and this embodiment does not limit this. Figure 2 In the above description, only four micro inorganic light emitting diodes ML are used as an example in the lamp area. In practical applications, the number of micro inorganic light emitting diodes ML in the lamp area can be determined according to actual application requirements and is not limited here.

[0084] In an embodiment of the present invention, when a micro inorganic light emitting diode is turned on, obtaining a detection image of a substrate on which a side of the micro inorganic light emitting diode is fixed may include: controlling each of a plurality of light zones to light up at the same time, and for each light zone, when the light zone is turned on, collecting a detection image of the substrate on which a side of the micro inorganic light emitting diode is fixed. Exemplarily, the light-emitting driver chip 20 controls each of a plurality of light zones to light up at the same time, and detects the correspondence between the pins of the light-emitting driver chip 20 and the light zones. And for each light zone, when the light zone is turned on, collecting a detection image PS of the substrate 10 on which a side of the micro inorganic light emitting diode ML is fixed. For example, Figure 4a As shown, the light-emitting driver chip 20 inputs a signal to the light zone DQ1 through the pin pin1 to control the four micro-inorganic light-emitting diodes ML in the light zone DQ1 to light up, and the light-emitting driver chip 20 inputs a signal to the remaining light zones through the remaining pins to control the micro-inorganic light-emitting diodes ML in the remaining light zones to turn off. The lit micro-inorganic light-emitting diodes ML can be identified by the photosensitive element in the image collector SX, so that the image collector SX can be used to collect the detection image PS of the substrate 10 at this time to obtain Figure 5a The detection image PS shown in FIG. Figure 4b As shown, the light-emitting driver chip 20 inputs a signal to the light zone DQ2 through the pin pin2 to control the four micro-inorganic light-emitting diodes ML in the light zone DQ2 to light up, and the light-emitting driver chip 20 inputs a signal to the remaining light zones through the remaining pins to control the micro-inorganic light-emitting diodes ML in the remaining light zones to turn off. The lit micro-inorganic light-emitting diodes ML can be identified by the photosensitive element in the image collector SX, so that the image collector SX can be used to collect the detection image PS of the substrate 10 at this time to obtain Figure 5b The detection image PS is shown in FIG. The rest are similar and will not be described in detail here.

[0085] It should be noted that Figures 4a to 6 In the figure, MLG represents the lit micro inorganic light emitting diode ML.

[0086] S300 , determining the substrate coordinates of each micro inorganic light emitting diode in the substrate according to the detection image and a predetermined coordinate conversion relationship.

[0087] Exemplarily, a coordinate acquisition unit can be used to determine the substrate coordinates of each micro inorganic light emitting diode ML in the substrate 10 according to the detection image PS and the predetermined coordinate conversion relationship. Moreover, the substrate coordinates are the coordinates of the actual position of the micro inorganic light emitting diode ML in the substrate. In this way, a point map can be formed through the coordinates of the actual position.

[0088] In the embodiment of the present disclosure, step S300, determining the substrate coordinates of each micro-inorganic light emitting diode ML in the substrate 10 according to the detection image PS and the predetermined coordinate conversion relationship, may include: first, determining the image coordinates of the micro-inorganic light emitting diode ML in the detection image PS. Exemplarily, an image recognition algorithm may be used to identify the image coordinates (x, y) of the illuminated micro-inorganic light emitting diode ML in the detection image PS. For example, in combination with Figure 4a As shown, an image recognition algorithm can be used to identify the image coordinates of the four illuminated micro-inorganic light-emitting diodes ML in the lamp area DQ1 in the detection image PS. Alternatively, an image recognition algorithm can be used to identify the image coordinates of one illuminated micro-inorganic light-emitting diode ML in the lamp area DQ1 in the detection image PS, and since the spacing between the micro-inorganic light-emitting diodes ML is known, the image coordinates of the remaining three illuminated micro-inorganic light-emitting diodes ML in the lamp area DQ1 in the detection image PS can be calculated based on the identified image coordinates. It should be noted that the image recognition algorithm can be basically the same as that in the prior art, such as a convolutional neural network, a deep neural network, etc., which will not be described in detail here.

[0089] Afterwards, the substrate coordinates of each micro-inorganic light emitting diode ML in the substrate 10 can be determined according to the image coordinates of each micro-inorganic light emitting diode ML and the predetermined coordinate conversion relationship. Exemplarily, the substrate coordinates of each micro-inorganic light emitting diode ML in the substrate 10 can be determined according to the image coordinates of each micro-inorganic light emitting diode ML and the predetermined coordinate conversion relationship, which can include: first, for each micro-inorganic light emitting diode ML, the image coordinates (x, y) of the micro-inorganic light emitting diode ML can be converted into the array coordinates (m1, n1) of the micro-inorganic light emitting diode ML in the photosensitive element array of the image collector SX. For example, the formula can be used: focal length / resolution = array coordinates / (0.5 resolution-pixel coordinates). That is, the mathematical expression formula for the horizontal coordinate conversion is: The mathematical expression of the vertical coordinate conversion is:

[0090] Convert the image coordinates (x, y) to array coordinates (m1, n1). Wherein, m1 represents the horizontal coordinate of the array coordinates of the micro inorganic light emitting diode ML, n1 represents the vertical coordinate of the array coordinates of the micro inorganic light emitting diode ML, x represents the horizontal coordinate of the image coordinates of the micro inorganic light emitting diode ML, y represents the vertical coordinate of the image coordinates of the micro inorganic light emitting diode ML, f represents the focal length of the image collector SX, and Xp*Yp represents the resolution of the image collector SX. For example, Xp*Yp can be 1080*720. After calculating the array coordinates (m1, n1), combined with Figure 7a and Figure 7b As shown, the formula can be used and The image array coordinates (m1, n1) of the micro-inorganic light emitting diode ML are converted into the substrate coordinates (u, v) of the micro-inorganic light emitting diode ML in the substrate 10. Figure 7a As shown, u represents the horizontal coordinate of the substrate coordinate of the micro inorganic light emitting diode ML, v represents the vertical coordinate of the substrate coordinate of the micro inorganic light emitting diode ML, m1 represents the horizontal coordinate of the array coordinate of the micro inorganic light emitting diode ML, n1 represents the vertical coordinate of the array coordinate of the micro inorganic light emitting diode ML, f represents the focal length of the image collector SX, L represents the object distance of the image collector SX, and f0 represents the focus. p1 represents the center point of the substrate, 01 represents the center point of the image collector SX,

[0091] For example, the size of the camera's photosensitive element is 5.6mm*4.2mm, corresponding to a resolution of 1080*720. The pixels of the illuminated imaging point are 200*100. First, calculate the coordinate position of the imaging point in the X direction. We get m1 = 1.763 mm. It is found that n1=0.867mm.

[0092] S400, forming a point map corresponding to the micro inorganic light emitting diode according to the determined substrate coordinates.

[0093] For example, the substrate coordinates (u, v) corresponding to each micro-inorganic light-emitting diode can be obtained through step S300. In this way, a point map can be formed according to the substrate coordinates (u, v) corresponding to each micro-inorganic light-emitting diode. For example, the point map is as follows: Figure 8As shown, taking 144 micro inorganic light emitting diodes as an example, the sequence and column represent the horizontal and vertical coordinates of the light area (one light area contains at least one), 1L1~16L9 represent the actual position of each of the 144 micro inorganic light emitting diodes in the substrate, H1~H8 represent the scanning marks of the point map, and the subsequent decoding processing of the software. Among them, the micro inorganic light emitting diodes 1L1~1L9 and 5L1~5L9 corresponding to H1 are scanned at the same time, the micro inorganic light emitting diodes 2L1~2L9 and 6L1~6L9 corresponding to H2 are scanned at the same time, the micro inorganic light emitting diodes 3L1~3L9 and 7L1~7L9 corresponding to H3 are scanned at the same time, the micro inorganic light emitting diodes 4L1~4L9 and 8L1~8L9 corresponding to H4 are scanned at the same time, and the micro inorganic light emitting diodes 9L1~9L9 and 13L1~13L9 corresponding to H5 are scanned at the same time. 1~13L9 are scanned simultaneously, the micro inorganic light emitting diodes 10L1~10L9 and 14L1~14L9 corresponding to H6 are scanned simultaneously, the micro inorganic light emitting diodes 11L1~11L9 and 15L1~15L9 corresponding to H7 are scanned simultaneously, and the micro inorganic light emitting diodes 12L1~12L9 and 16L1~16L9 corresponding to H8 are scanned simultaneously. In the embodiment of the present invention, the marking method of the scanning mark is related to the control method required by the substrate, and the present application is not limited thereto.

[0094] In the embodiment of the present invention, the actual positions 1L1-16L9 of the micro-inorganic light emitting diodes in the point map can be determined according to the substrate coordinates.

[0095] The disclosed embodiment also provides a driving method of a micro inorganic light emitting diode, such as Fig. 9 As shown, the following steps may be included:

[0096] S10, establishing a mapping relationship according to the point map corresponding to the micro inorganic light emitting diode.

[0097] Exemplarily, a mapping relationship is established between the point map, the lamp area in the substrate, and each pin of the light-emitting driving chip 20 and then stored.

[0098] S20. According to the established mapping relationship, the micro inorganic light emitting diodes in the substrate are driven to emit light; wherein the point map is formed by the above method.

[0099] In an embodiment of the present invention, step S10, establishing a mapping relationship according to the point map corresponding to the micro inorganic light emitting diode, may include: establishing and storing a mapping relationship between the lamp areas in the light emitting substrate and each pin of the light emitting driver chip according to the point map. Exemplarily, a mapping relationship is established between the pin pin1 of the light emitting driver chip 20, the lamp area DQ1, and the substrate coordinates of the micro inorganic light emitting diode in the lamp area DQ1 in the point map, and a mapping relationship is established between the pin pin2 of the light emitting driver chip 20, the lamp area DQ2, and the substrate coordinates of the micro inorganic light emitting diode in the lamp area DQ2 in the point map. The rest is similar and will not be elaborated here. The mapping relationships corresponding to all lamp areas are recorded, a database is established, and stored in a storage unit. This embodiment does not limit the storage unit.

[0100] In an embodiment of the present invention, step S20, driving the micro inorganic light emitting diode in the substrate to emit light according to the established mapping relationship, may include: controlling the light driving chip through the mainboard signal according to the mapping relationship to control the light zone. Exemplarily, when the micro inorganic light emitting diode in the driving substrate emits light, the light driving chip may receive the mainboard signal so that the light driving chip may generate a signal to control a certain light zone to emit light, thereby achieving control of the light zone. For example, a mainboard signal may be generated by the main control unit, and the light driving chip may be controlled through the mainboard signal according to the established mapping relationship, so that the light zone at a fixed position may be controlled. Therefore, in the process of controlling the light display of the substrate, the mapping relationship stored in the storage unit may be called out according to the image information to be displayed to control the micro inorganic light emitting diode.

[0101] Specifically, Fig.12 As shown, for example: the software layer (NovaLCT, LED MPlayer and other substrate control software) can obtain the point map stored in the storage unit, determine the physical position of the lamp area DQ1 in the substrate, output the control information of the lamp area DQ1 through the control pin P1, and then realize the control of the light emission of the lamp area DQ1. And, determine the physical position of the lamp area DQ2 in the substrate, output the control information of the lamp area DQ2 through the control pin P2, and then realize the control of the light emission of the lamp area DQ2. The rest is similar and will not be repeated here.

[0102] Furthermore, according to the mapping relationship between the light-emitting driver chip and the light zone, the light-emitting driver chip can be controlled through the mainboard signal, so that the light zone at a fixed position can be controlled. According to the position coordinate information of the light zone mentioned above, the control information corresponding to the driver chip, and the control information corresponding to the mainboard control signal, a one-to-one mapping relationship will be established inside the mainboard register. In the subsequent display process, this article will call out the light board position mapping information stored in the mainboard register according to the image information, and control the light zone through the mainboard.

[0103] The embodiment of the present invention also provides a device for determining a point map of a micro inorganic light emitting diode in a substrate, such as Fig.10 As shown, it may include:

[0104] The substrate acquisition unit 011 is configured to acquire a substrate, wherein a micro inorganic light emitting diode is fixed on the substrate;

[0105] The image collector 012 is configured to obtain a detection image of the substrate on one side of which the micro inorganic light emitting diode is fixed;

[0106] A coordinate acquisition unit 013 is configured to determine the substrate coordinates of each micro inorganic light emitting diode in the substrate according to the detection image and a predetermined coordinate conversion relationship;

[0107] The point map determining unit 014 is configured to form a point map corresponding to the micro inorganic light emitting diode according to the determined substrate coordinates.

[0108] It should be noted that the working principle and specific implementation of the device for determining the point position map of the micro inorganic light emitting diodes in the substrate are the same as the principle and implementation of the method for determining the point position map of the micro inorganic light emitting diodes in the substrate in the above-mentioned embodiment. Therefore, the working method of the device for determining the point position map of the micro inorganic light emitting diodes in the substrate can be implemented with reference to the specific implementation of the method for determining the point position map of the micro inorganic light emitting diodes in the substrate in the above-mentioned embodiment, which will not be repeated here.

[0109] The embodiment of the present invention also provides a driving device for a micro inorganic light emitting diode, such as Fig.11 As shown, it may include:

[0110] The mapping establishment unit 021 is configured to establish a mapping relationship according to the point map corresponding to the micro inorganic light emitting diode;

[0111] The main control unit 022 is configured to drive the micro inorganic light emitting diode in the substrate to emit light according to the established mapping relationship;

[0112] The storage unit 023 is configured to store a point map; wherein the point map is formed by using a method.

[0113] In the embodiment of the present invention, the main control unit may include at least an integrated circuit (IC) chip and a microcontroller unit (MCU), and may also include a power drive circuit, a signal drive circuit, a storage module (chip register, etc.), a protection circuit, etc.

[0114] It should be noted that the working principle and specific implementation of the driving device of the micro inorganic light emitting diode are the same as the principle and implementation of the driving method of the micro inorganic light emitting diode in the above-mentioned embodiment. Therefore, the working method of the driving device of the micro inorganic light emitting diode can be implemented with reference to the specific implementation of the driving method of the micro inorganic light emitting diode in the above-mentioned embodiment, which will not be repeated here.

[0115] An embodiment of the present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method for determining the point map of the micro-inorganic light-emitting diode in the substrate or the steps of the method for driving the micro-inorganic light-emitting diode.

[0116] An embodiment of the present invention also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the steps of the method for determining the point map of the micro-inorganic light-emitting diode in the substrate or the steps of the method for driving the micro-inorganic light-emitting diode are implemented.

[0117] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0118] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the present application. The steps and sequence numbers of the methods described above can be adjusted in order as needed, and some of the steps can be omitted in some cases. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate the instructions implemented in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0119] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0120] These computer program instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide the functions implemented in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0121] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A method for determining a point map of a micro inorganic light emitting diode in a substrate, characterized in that: include: Obtaining a substrate; wherein randomly distributed micro inorganic light emitting diodes are fixed on the substrate; Acquire a detection image of the substrate on one side of which the micro inorganic light emitting diode is fixed; Determining the substrate coordinates of each of the micro inorganic light emitting diodes in the substrate according to the detection image and the predetermined coordinate conversion relationship; According to the determined substrate coordinates, a point map corresponding to the micro inorganic light emitting diode is formed; Wherein, the detection image is acquired by using an image collector, and the coordinate transformation relationship includes: Among them, m1 represents the horizontal coordinate of the array coordinate of the micro inorganic light emitting diode, n1 represents the vertical coordinate of the array coordinate of the micro inorganic light emitting diode, x represents the horizontal coordinate of the image coordinate of the micro inorganic light emitting diode, y represents the vertical coordinate of the image coordinate of the micro inorganic light emitting diode, f represents the focal length of the image collector, and Xp*Yp represents the resolution of the image collector; u represents the horizontal coordinate of the substrate coordinate of the micro inorganic light emitting diode, v represents the vertical coordinate of the substrate coordinate of the micro inorganic light emitting diode, m1 represents the horizontal coordinate of the array coordinate of the micro inorganic light emitting diode, n1 represents the vertical coordinate of the array coordinate of the micro inorganic light emitting diode, and L represents the object distance of the image collector; and the image coordinates are the coordinates of the micro inorganic light emitting diode existing in the detection image in the detection image, and the array coordinates are the coordinates of the micro inorganic light emitting diode in the photosensitive element array of the image collector.

2. The method for determining a point map of a micro inorganic light emitting diode in a substrate according to claim 1, characterized in that: The step of determining the substrate coordinates of each of the micro inorganic light emitting diodes in the substrate according to the detection image and the predetermined coordinate conversion relationship includes: Determine the image coordinates of the micro-inorganic light emitting diodes present in the detection image in the detection image; The substrate coordinates of each of the micro-inorganic light emitting diodes in the substrate are determined according to the image coordinates of each of the micro-inorganic light emitting diodes and a predetermined coordinate conversion relationship.

3. The method for determining the point map of a micro inorganic light emitting diode in a substrate according to claim 2, characterized in that: The detection image is acquired by using an image collector arranged on the side of the substrate facing the micro inorganic light emitting diode.

4. The method for determining a point map of a micro inorganic light emitting diode in a substrate as claimed in claim 3, characterized in that: The step of determining the substrate coordinates of each of the micro-inorganic light emitting diodes in the substrate according to the image coordinates of each of the micro-inorganic light emitting diodes and a predetermined coordinate conversion relationship includes: For each micro inorganic light emitting diode, converting the image coordinates of the micro inorganic light emitting diode into array coordinates of the micro inorganic light emitting diode in the photosensitive element array of the image collector; The image array coordinates of the micro-inorganic light emitting diodes are converted into substrate coordinates of the micro-inorganic light emitting diodes in the substrate.

5. The method for determining a point map of a micro inorganic light emitting diode in a substrate according to any one of claims 1 to 4, characterized in that: The step of acquiring a detection image of the substrate on one side of which the micro inorganic light emitting diode is fixed comprises: When the micro-inorganic light emitting diode is turned on, a detection image of the substrate on one side where the micro-inorganic light emitting diode is fixed is acquired.

6. The method for determining a point map of a micro inorganic light emitting diode in a substrate as claimed in claim 5, characterized in that: The substrate has a plurality of light areas, each of which has at least one micro inorganic light emitting diode; When the micro inorganic light emitting diode is lit, obtaining a detection image of the substrate on one side of which the micro inorganic light emitting diode is fixed comprises: The plurality of lamp areas are controlled to light up at the same time, and for each lamp area, when the lamp area is lit up, a detection image of a side of the substrate where the micro inorganic light emitting diode is fixed is collected.

7. A driving method of a micro inorganic light emitting diode, characterized in that: include: Establishing a mapping relationship according to the point map corresponding to the micro inorganic light emitting diode; According to the established mapping relationship, driving the micro inorganic light emitting diode in the substrate to emit light; Wherein, the point map is formed by the method described in any one of claims 1-6.

8. The driving method of the micro inorganic light emitting diode according to claim 7, characterized in that: At least one lamp area of ​​the substrate is electrically connected to a pin of the light-emitting driving chip; The step of establishing a mapping relationship according to the point map corresponding to the micro inorganic light emitting diode comprises: According to the point map, a mapping relationship is established between the lamp area in the substrate and each pin of the light-emitting driving chip and stored.

9. The driving method of a micro inorganic light emitting diode as claimed in claim 8, characterized in that: The step of driving the micro inorganic light emitting diode in the substrate to emit light according to the established mapping relationship comprises: According to the mapping relationship, the light driving chip is controlled through the mainboard signal to control the light zone.

10. A device for determining a point map of a micro inorganic light emitting diode in a substrate, characterized in that: include: A substrate acquisition unit is configured to acquire a substrate; wherein randomly distributed micro inorganic light emitting diodes are fixed on the substrate; An image collector configured to acquire a detection image of the substrate on one side of which the micro inorganic light emitting diode is fixed; A coordinate acquisition unit, configured to determine the substrate coordinates of each of the micro inorganic light emitting diodes in the substrate according to the detection image and a predetermined coordinate conversion relationship; A point map determining unit is configured to form a point map corresponding to the micro inorganic light emitting diode according to the determined substrate coordinates; Wherein, the detection image is acquired by using an image collector, and the coordinate transformation relationship includes: Among them, m1 represents the horizontal coordinate of the array coordinate of the micro inorganic light emitting diode, n1 represents the vertical coordinate of the array coordinate of the micro inorganic light emitting diode, x represents the horizontal coordinate of the image coordinate of the micro inorganic light emitting diode, y represents the vertical coordinate of the image coordinate of the micro inorganic light emitting diode, f represents the focal length of the image collector, and Xp*Yp represents the resolution of the image collector; u represents the horizontal coordinate of the substrate coordinate of the micro inorganic light emitting diode, v represents the vertical coordinate of the substrate coordinate of the micro inorganic light emitting diode, m1 represents the horizontal coordinate of the array coordinate of the micro inorganic light emitting diode, n1 represents the vertical coordinate of the array coordinate of the micro inorganic light emitting diode, and L represents the object distance of the image collector; and the image coordinates are the coordinates of the micro inorganic light emitting diode existing in the detection image in the detection image, and the array coordinates are the coordinates of the micro inorganic light emitting diode in the photosensitive element array of the image collector.

11. The device according to claim 10, characterized in that The focus of the image collector coincides with the center point of the substrate.

12. A driving device for a micro inorganic light emitting diode, characterized in that: include: A mapping establishment unit, configured to establish a mapping relationship according to a point map corresponding to the micro inorganic light emitting diode; A main control unit is configured to drive the micro inorganic light emitting diode in the substrate to emit light according to the established mapping relationship; A storage unit, configured to store the point map; Wherein, the point map is formed by the method described in any one of claims 1-6.

13. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method for determining the point map of a micro-inorganic light-emitting diode in a substrate as described in any one of claims 1-6 or the steps of the method for driving a micro-inorganic light-emitting diode as described in any one of claims 7-9 are implemented.

14. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the steps of the method for determining the point map of the micro-inorganic light-emitting diode in the substrate as described in any one of claims 1-6 or the steps of the method for driving the micro-inorganic light-emitting diode as described in any one of claims 7-9 are implemented.

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