Address programming method and system for unit board and lamp bead

Abstract

The invention discloses an address programming method and system for a unit board and a lamp bead. Each unit plate comprises a substrate and a plurality of lamp beads arranged on the substrate; each lamp bead comprises an address programming bonding pad and a data bonding pad; the plurality of lamp beads comprise a plurality of lamp bead columns, and the substrate is also provided with a plurality of address write-in lines; the lamp bead columns are in one-to-one correspondence with the address write-in lines, and the address programming bonding pads of the plurality of lamp beads of each lamp bead column are electrically connected with the corresponding address write-in lines; the plurality of lamp beads comprise a plurality of lamp bead rows, the substrate is also provided with a plurality of data write-in lines, and the plurality of data write-in lines and the plurality of lamp bead rows are in one-to-one correspondence; each data write-in line is electrically connected with the data bonding pads of the plurality of lamp beads of the corresponding lamp bead row; each address write-in line is used for writing the same address into a plurality of lamp beads of the lamp bead column connected with the address write-in line, and the addresses written by different address write-in lines are different; and each data write-in line is used for writing display data into the lamp bead connected with the data write-in line. According to the invention, the yield of finished products can be improved and the process cost is reduced.

Description

Technical Field

[0001] The present invention relates to the field of LED technology, and in particular to a method and system for burning addresses of a unit board and a lamp bead. Background Art

[0002] In order to control multiple lamp beads on the unit board separately, it is necessary to configure the address for each lamp bead on the unit board independently, that is, different lamp beads on the unit board are usually configured with different addresses. At present, the address of the lamp beads is mainly burned in the following three ways: 1. When the IC of the lamp bead is taped out, the address is written into the IC; 2. When the lamp bead is packaged into a braid, the address is written into the IC; 3. After the lamp beads are set on the unit board, the address burning pads of a row of unit boards are connected in series and then connected to the address burning interface. The address burning interface burns the address to a row of lamp beads in a serial manner.

[0003] In the above-mentioned burning process, it is necessary to set X types of addresses according to the number of lamp beads (X) on the unit board; in the first burning method, the address is first burned into the IC in advance, and the IC address is classified through the lamp bead testing link, which is equivalent to dividing the IC into X groups, and each group of IC is burned with a corresponding address; in the second burning method, it is equivalent to setting X packaging tapes, and writing different addresses into the X packaging tapes respectively.

[0004] The above scheme has the following disadvantages: 1. Due to the pre-burning form, for any two unit boards, the ICs with the same address come from the same package tape, or are burned at the same stage, and the burning environment of the two is the same. When one IC is burned poorly, the other ICs with the same address are also likely to be burned poorly, which eventually leads to an IC with the poor burning on each unit board, that is, the current process has the defect of low finished product yield; 2. It is necessary to classify and tap the lamp beads with different addresses separately, which is complicated to operate, and it is necessary to set up X-station feeder structures according to the type of package tape, and even need to Customized placement machines have the disadvantage of high process costs; 3. The address burning interface burns the address to a row of lamp beads in serial mode. The address burning interface transmits the address to the first lamp bead, which is transmitted to the second lamp bead, and the second lamp bead is transmitted to the third lamp bead, and so on. The address is transmitted to each lamp bead respectively. In this way, if a lamp bead has a problem of poor welding of the address burning pad during the welding process, the subsequent address data will be wrong. If the address data is stored in a fuse-blown manner, a batch of lamp beads and chips will be scrapped. Therefore, this solution also has the defect of low finished product yield.

[0005] In summary, the current method of burning the address of lamp beads has technical problems that affect the yield of finished products and have high process costs. Summary of the invention

[0006] The present invention provides a method and system for writing addresses of a unit board and a lamp bead, so as to improve the yield of finished products and reduce process costs.

[0007] According to one aspect of the present invention, there is provided a unit board, comprising:

[0008] A substrate, and a plurality of lamp beads arranged on the substrate;

[0009] Each of the lamp beads comprises an address burning pad and a data pad; the plurality of lamp beads comprises a plurality of lamp bead columns, the plurality of lamp bead columns are sequentially arranged along the second direction, and each lamp bead column comprises a plurality of lamp beads sequentially arranged along the first direction; the substrate is further provided with a plurality of address writing lines extending along the first direction; the lamp bead columns correspond to the address writing lines one by one, and the address burning pads of the plurality of lamp beads in each lamp bead column are electrically connected to the corresponding address writing lines; wherein the first direction and the second direction intersect each other;

[0010] The multiple lamp beads include multiple lamp bead rows, which are arranged in sequence along a first direction, and each lamp bead row includes multiple lamp beads arranged in sequence along a second direction; the substrate is also provided with multiple data write lines, each data write line extends along the second direction, and the multiple data write lines correspond to the multiple lamp bead rows one by one; each data write line is electrically connected to the data pads of the multiple lamp beads in the corresponding lamp bead row; each of the address write lines is used to write the same address to the multiple lamp beads in the lamp bead column connected to it, and different address write lines write different addresses.

[0011] Each of the data writing lines is used to write display data to the lamp beads connected thereto.

[0012] Optionally, the address writing line is used to connect an address writing module, and the address writing module is used to write the same address to multiple lamp beads in each lamp bead column through the address writing line.

[0013] Optionally, the address writing module is detachably arranged on the substrate.

[0014] Optionally, the unit board also includes

[0015] Controller;

[0016] The plurality of data write lines are electrically connected to the plurality of data output ports of the controller in a one-to-one correspondence;

[0017] The controller is used for writing display data to each lamp bead through the data writing line.

[0018] Optionally, each of the lamp beads further includes a ground pad and a power pad;

[0019] The ground pad is electrically connected to a ground port of the controller, and the power pad is electrically connected to a power port of the controller.

[0020] Optionally, each of the lamp beads further includes a chip and three LEDs;

[0021] The chip is electrically connected to the address programming pad, the data pad, the ground pad, the power pad and the three LEDs respectively.

[0022] According to another aspect of the present invention, a method for writing the address of a lamp bead is provided, which is applied to the unit board described in any embodiment of the present invention;

[0023] The method comprises:

[0024] Different addresses are output to different address write lines, and one address is output to each address write line, so as to write the addresses to a plurality of lamp beads in a lamp bead column connected to the address write line through the address write line.

[0025] According to another aspect of the present invention, a lamp bead address burning system is provided, comprising the unit board and the address writing module according to any embodiment of the present invention;

[0026] The address writing module is electrically connected to the address writing line, and is used to write the same address to multiple lamp beads in each lamp bead column through the address writing line, and write different addresses to different lamp bead columns.

[0027] The lamp beads of the embodiment of the present invention are burned with addresses after being mounted on the unit board. There is no difference before being mounted on the lamp board. There is no need to configure different flyer structures according to the address data to separately mount lamp beads with different address data. That is, a plurality of lamp beads that have not yet been burned with addresses can be directly transmitted to the unit board through a flyer structure, so that the overall process is simplified, thereby reducing the process cost. In addition, in this embodiment, all lamp beads in each lamp bead column are burned into the same address in parallel through an address writing line. Due to the parallel burning of addresses, the lamp beads in a lamp bead column will not affect each other. When there are problematic lamp beads in the lamp bead column, it will not affect the address burning of other lamp beads, thereby improving the product yield. In addition, parallel burning has a faster address burning speed and a lower burning difficulty, further reducing the process cost. In addition, each data writing line is connected to a lamp bead row, and each data writing line writes display data to the corresponding lamp bead row. Since the addresses of the lamp beads in a lamp bead row are different, it is ensured that the data line can write the display data normally.

[0028] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a schematic diagram of a unit board provided by an embodiment of the present invention.

[0031] Figure 2 It is a schematic diagram of a lamp bead provided in an embodiment of the present invention.

[0032] Figure 3 It is a schematic diagram of another lamp bead provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0035] An embodiment of the present invention provides a unit board. Figure 1 is a schematic diagram of a unit board provided by an embodiment of the present invention, Figure 2 Schematic diagram of a lamp bead provided by an embodiment of the present invention. Figure 1 and Figure 2 The unit board includes a substrate 10 and a plurality of lamp beads 20 disposed on the substrate 10;

[0036] Each lamp bead 20 includes an address burning pad DIN and a data pad DATA; the multiple lamp beads 20 include multiple lamp bead columns 30, the multiple lamp bead columns 30 are arranged in sequence along the second direction Y, and each lamp bead column 30 includes multiple lamp beads 20 arranged in sequence along the first direction X; the substrate 10 is also provided with multiple address writing lines 40 extending along the first direction X; the lamp bead columns 30 correspond to the address writing lines 40 one by one, and the address burning pads DIN of the multiple lamp beads 20 of each lamp bead column 30 are electrically connected to the corresponding address writing lines 40; wherein the first direction X and the second direction Y intersect each other;

[0037] The multiple lamp beads 20 include multiple lamp bead rows 50, and the multiple lamp bead rows 50 are arranged in sequence along the first direction X, and each lamp bead row 50 includes multiple lamp beads 20 arranged in sequence along the second direction Y; multiple data write lines 60 are also provided on the substrate 10, each data write line extends along the second direction Y, and the multiple data write lines 60 correspond to the multiple lamp bead rows 50 one by one; each data write line 60 is electrically connected to the data pad DATA of the multiple lamp beads 20 of the corresponding lamp bead row 50; each address write line 40 is used to write the same address to the multiple lamp beads 20 of the lamp bead column 30 connected to it, and different address write lines 40 write different addresses.

[0038] Each data writing line 60 is used to write display data to the lamp bead 20 connected thereto.

[0039] Wherein, the substrate 10 can be a PCB board, the lamp bead 20 is welded on the substrate 10, and the lamp bead 20 can be an LED lamp bead. The data write line 60 and the address write line 40 are both made on the substrate 10. The first direction X can be perpendicular to the second direction Y, or it can be non-perpendicular. An address write port can be set on the unit board, and the address write line 40 is electrically connected to the address write port, and the address write port can be connected to an external address write module 70. The address write module 70 writes the address to the address write line 40, transmits the address to the address burning pad DIN of the lamp bead 20, and then burns it into the chip in the lamp bead 20. A controller 80 or a control circuit can also be set on the unit board, and the controller 80 or the control circuit is electrically connected to the data write line 60. The controller 80 or the control circuit is used to transmit display data to the data write line 60, and the display data is written to each lamp bead 20 of the lamp bead row 50 connected to the data write line 60 through each data write line 60.

[0040] The lamp beads of this embodiment are burned with addresses after being mounted on the unit board. There is no difference before being mounted on the lamp board. There is no need to configure different flyer structures according to the address data to separately mount lamp beads with different address data. That is, multiple lamp beads 20 that have not yet been burned with addresses can be directly transmitted to the unit board through a flyer structure, so that the overall process is simplified, thereby reducing the process cost. In addition, in this embodiment, all lamp beads 20 of each lamp bead column 30 are burned into the same address in parallel through an address writing line 40. Due to the parallel address burning, the lamp beads 20 in a lamp bead column 30 will not affect each other. When there are problematic lamp beads 20 in the lamp bead column 30, it will not affect the address burning of other lamp beads 20, thereby improving the product yield. In addition, parallel burning has a faster address burning speed and lower burning difficulty, further reducing the process cost. In addition, each data write line 60 is connected to a lamp bead row 50, and each data write line 60 writes display data to the corresponding lamp bead row 50. Since the addresses of the lamp beads 20 in a lamp bead row 50 are different, it is ensured that the data line write line 60 can write display data normally.

[0041] On the basis of the above embodiment, optionally, the address writing line 40 is used to connect the address writing module 70 , and the address writing module 70 is used to write the same address to the multiple lamp beads 29 of each lamp bead column 40 through the address writing line 40 .

[0042] Specifically, an external interface can be provided on the unit board, the external interface is electrically connected to the address write line 40, and the address write module 70 can be connected to the external interface. The address write module 70 transmits an address to each address write line 40, and transmits different addresses to different address write lines 40, so as to realize that the same address is burned into each lamp bead column 30, and different addresses are burned into different lamp bead columns 30. The address write module 70 used in the unit board of this embodiment only needs to configure the address according to the number of lamp bead columns 30, and the number of addresses that need to be configured and stored is small, the required calculation amount and storage space are small, and the address write module 70 has a lower cost.

[0043] Exemplary, reference Figure 1 The unit board includes n lamp bead columns 30, and the n lamp bead columns 30 are respectively connected to n address writing lines DI1...DI(n-1) and DIn. The address writing module 70 transmits addresses to DI1...DI(n-1) and Din respectively. The address writing module 70 only needs to be configured with n addresses.

[0044] On the basis of the above embodiment, optionally, the address writing module 70 is detachably disposed on the substrate 10 .

[0045] Specifically, the address writing module 70 can be set on the substrate 10 by plugging, etc. After the address burning is completed, the address writing module 70 can be removed from the substrate 10, so that the address writing module 70 can be reused for different unit boards, further reducing costs.

[0046] On the basis of the above embodiment, optionally, the unit board also includes a controller 80; a plurality of data write lines 60 are electrically connected to a plurality of data output ports of the controller 80 in a one-to-one correspondence; and the controller 80 is used to write display data to each lamp bead 20 through the data write lines 60 .

[0047] Specifically, the multiple data output ports of the controller 80 are DA1, ..., DAm, and each data output port is electrically connected to a data write line 60. The controller 80 outputs the display data to be written to the lamp bead 20 to each data write line 60, and writes the display data to the corresponding lamp bead 20 through the data write line 60. The display data output by the controller 80 to the data write line 60 carries the identification data corresponding to the address of the lamp bead 20, and the lamp bead 20 identifies the identification data to confirm whether it is the display data corresponding to it. Exemplarily, a lamp bead row 50 includes n lamp beads 20, and a data write line 60 needs to transmit n display data, each of the n display data corresponds to a lamp bead 20, and each display data carries the identification data of the lamp bead corresponding to it.

[0048] In the present embodiment, since the addresses of all the lamp beads 20 in a lamp bead column 30 are the same, the addresses of the lamp beads 20 at the same position in different lamp bead rows 50 are the same. The controller 80 can use a set of identification data to identify the display data of the lamp beads 20 in each lamp bead row 50, thereby reducing the data storage and calculation data volume of the controller 80. The controller 80 of the present embodiment does not need to be configured with an address burning interface, which reduces the number of interfaces of the controller 80, reduces the cost of the controller 80, and thus further reduces the cost of the unit board.

[0049] Figure 3 is a schematic diagram of another lamp bead provided by an embodiment of the present invention, referring to Figure 1-Figure 3 On the basis of the above embodiment, optionally, each lamp bead 20 further includes a ground pad GND and a power pad VDD; the ground pad VDD is electrically connected to the ground port GND1 of the controller 80, and the power pad VDD is electrically connected to the power port VDD1 of the controller 80.

[0050] Specifically, the address programming pad DIN, the data pad DATA, the ground pad GND and the power pad VDD can be Figure 2 The arrangement is not limited to the arrangement shown, but may also be arranged in other ways. For example, the positions of the pads may be exchanged, or the pads may be arranged in a column or a row.

[0051] Based on the above embodiment, optionally, refer to Figure 3 Each lamp bead 20 further includes a chip 21 and three LEDs 22 ; the chip 21 is electrically connected to the address programming pad DIN, the data pad DATA, the ground pad GND, the power pad VDD and the three LEDs 22 , respectively.

[0052] The address of the lamp bead 20 is written into the chip 21, and the three LEDs 22 can be a red LED, a green LED and a blue LED respectively.

[0053] The embodiment of the present invention further provides a method for writing the address of a lamp bead, which is applied to the unit board described in any embodiment of the present invention;

[0054] Methods include:

[0055] Different addresses are output to different address write lines, and one address is output to each address write line, so as to burn the addresses to multiple lamp beads in the lamp bead column connected to the address write line through the address write line.

[0056] The address burning method provided in the embodiment of the present invention and the unit board provided in any embodiment of the present invention belong to the same inventive concept and have corresponding beneficial effects. For technical details not detailed in this embodiment, please refer to the unit board described in any embodiment of the present invention.

[0057] The embodiment of the present invention also provides a lamp bead address burning system, referring to Figure 1 , the address burning system includes the unit board and the address writing module 70 described in any embodiment of the present invention;

[0058] The address writing module 70 is electrically connected to the address writing line 40 , and is used to write the same address to the multiple lamp beads 20 in each lamp bead column 30 through the address writing line 40 , and write different addresses to different lamp bead columns 40 .

[0059] The address burning system provided in the embodiment of the present invention and the unit board provided in any embodiment of the present invention belong to the same inventive concept and have corresponding beneficial effects. For technical details not detailed in this embodiment, please refer to the unit board described in any embodiment of the present invention.

[0060] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0061] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A unit board, characterized in that: include: A substrate, and a plurality of lamp beads arranged on the substrate; Each of the lamp beads comprises an address burning pad and a data pad; the plurality of lamp beads comprises a plurality of lamp bead columns, the plurality of lamp bead columns are sequentially arranged along the second direction, and each lamp bead column comprises a plurality of lamp beads sequentially arranged along the first direction; the substrate is further provided with a plurality of address writing lines extending along the first direction; the lamp bead columns correspond to the address writing lines one by one, and the address burning pads of the plurality of lamp beads in each lamp bead column are electrically connected to the corresponding address writing lines; wherein the first direction and the second direction intersect each other; The plurality of lamp beads include a plurality of rows of lamp beads, the plurality of rows of lamp beads are sequentially arranged along a first direction, and each row of lamp beads includes a plurality of rows of lamp beads sequentially arranged along a second direction; the substrate is further provided with a plurality of data writing lines, each of which extends along the second direction, and the plurality of data writing lines correspond to the plurality of rows of lamp beads one by one; each data writing line is electrically connected to the data pads of the plurality of lamp beads of the corresponding row of lamp beads; each of the address writing lines is used to write the same address to the plurality of lamp beads of the lamp bead column connected thereto, and different address writing lines write different addresses; Each of the data writing lines is used to write display data to the lamp beads connected thereto.

2. The unit board according to claim 1, characterized in that: The address writing line is used to connect an address writing module, and the address writing module is used to write the same address to a plurality of lamp beads in each lamp bead column through the address writing line.

3. The unit board according to claim 2, characterized in that: The address writing module is detachably arranged on the substrate.

4. The unit board according to claim 1, characterized in that: Also includes Controller; The plurality of data write lines are electrically connected to the plurality of data output ports of the controller in a one-to-one correspondence; The controller is used for writing display data to each lamp bead through the data writing line.

5. The unit board according to claim 4, characterized in that: Each of the lamp beads also includes a ground pad and a power pad; The ground pad is electrically connected to a ground port of the controller, and the power pad is electrically connected to a power port of the controller.

6. The unit board according to claim 5, characterized in that: Each of the lamp beads also includes a chip and three LEDs; The chip is electrically connected to the address programming pad, the data pad, the ground pad, the power pad and the three LEDs respectively.

7. A method for writing the address of a lamp bead, characterized in that: Applicable to the unit board according to any one of claims 1 to 6; The method comprises: Different addresses are output to different address write lines, and one address is output to each address write line, so as to write addresses to a plurality of lamp beads in a lamp bead column connected to the address write line through the address write line.

8. A lamp bead address burning system, characterized in that: Comprising the unit board and the address writing module according to any one of claims 1 to 6; The address writing module is electrically connected to the address writing line, and is used to write the same address to multiple lamp beads in each lamp bead column through the address writing line, and write different addresses to different lamp bead columns.

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