LED display structure

Abstract

The embodiment of the present application discloses a kind of LED display structures, it includes: PCB board;Multiple luminous pixels are arranged in array in row and column direction and are set on PCB board, luminous pixel includes multiple LED lamp beads, each LED lamp bead at least includes first common terminal, second common terminal and non-common terminal.The LED display structure provided by the embodiment of the present application, by setting at least two common terminals in each LED lamp bead, further solve the technical problem that opening needs to be carried out when scanning line and data line appear intersection on PCB board, improve the resolution of LED display, reduce the manufacturing cost and manufacturing difficulty of PCB board.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of LED display, in particular to an LED display structure. BACKGROUND

[0002] Display technology is a huge system including many related technologies, from the bottom of the light-emitting mechanism, new light-emitting materials, display driving mode to the top of the graph, topology and so on have been included in the display field. An ideal display technology should have high brightness, high resolution, high contrast, and large display capacity, full-color display, low voltage drive, low power consumption, the display device itself and the driving circuit are integrated, high reliability, long life and light and thin portable and other characteristics.

[0003] At present, in the field of LED display, the scanning strategy is to electrically connect the non-common ends of each row of pixels to form a scanning line, and to scan each row and each point, and to rely on the increase of frequency to realize high picture quality, which produces a large amount of time redundancy and increases the manufacturing cost. At the same time, when the scanning line and the data line are wired on the PCB board, the through hole needs to be added on the PCB board to solve the problem of the intersection of the scanning line and the data line, thereby indirectly increasing the manufacturing difficulty of the PCB board. Therefore, how to realize high picture quality of LED display while reducing manufacturing cost and difficulty is a technical problem to be solved at present. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides an LED display structure which not only reduces the manufacturing cost and difficulty, but also improves the resolution of LED display.

[0005] To solve the above problems, the embodiment of the present application provides an LED display structure, which comprises:

[0006] a PCB board;

[0007] a plurality of light-emitting pixels arranged in an array in row and column directions on the PCB board, the light-emitting pixels comprising a plurality of LED lamp beads, each of the LED lamp beads comprising at least a first common end, a second common end and a non-common end;

[0008] If the LED lamp beads of the same light-emitting color in each row of light-emitting pixels are electrically connected through the first common end and the second common end to form a scanning line, then the non-common ends in each column of light-emitting pixels are electrically connected to form one or more data lines;

[0009] If the LED lamp beads of the same light-emitting color in each column of light-emitting pixels are electrically connected through the first common end and the second common end to form a scanning line, then the non-common ends in each row of light-emitting pixels are electrically connected to form one or more data lines.

[0010] Preferably, in the LED display structure, the light-emitting pixels comprise red LED lamp beads, green LED lamp beads and blue LED lamp beads.

[0011] More preferably, in the LED display structure, the first common electrode end and the second common electrode end in each of the red LED lamp beads are electrically connected inside the red LED lamp bead.

[0012] More preferably, in the LED display structure, the first common electrode end and the second common electrode end in each of the red LED lamp beads are electrically connected inside the red LED lamp bead by connecting metal.

[0013] More preferably, in the LED display structure, the first common electrode end and the second common electrode end in each of the green LED lamp beads are electrically connected inside the red LED lamp bead.

[0014] More preferably, in the LED display structure, the first common electrode end and the second common electrode end in each of the green LED lamp beads are electrically connected inside the green LED lamp bead by connecting metal.

[0015] More preferably, in the LED display structure, the first common electrode end and the second common electrode end in each of the blue LED lamp beads are electrically connected inside the blue LED lamp bead.

[0016] More preferably, in the LED display structure, the first common electrode end and the second common electrode end in each of the blue LED lamp beads are electrically connected inside the blue LED lamp bead by connecting metal.

[0017] Preferably, in the LED display structure, one of the scan lines is electrically connected to a gate signal pin of a gate chip, and one of the data lines is electrically connected to a data signal pin of a driving chip.

[0018] Compared with the prior art, the embodiment of the present application provides an LED display structure, by setting a first common electrode end and a second common electrode end on each LED lamp bead, when each first common electrode end and each second common electrode end in each row of light emitting pixels are electrically connected to form a scanning line, each non-common electrode end in each column of light emitting pixels is electrically connected to form one or more data lines; when each first common electrode end and each second common electrode end in each column of light emitting pixels are electrically connected to form a scanning line, each non-common electrode end in each row of light emitting pixels is electrically connected to form one or more data lines, not only the technical problem that the scanning line and the data line need to be opened when the scanning line and the data line are crossed on the PCB board is solved, but also the resolution of the LED display is improved, and the manufacturing cost and the manufacturing difficulty are greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 The structural schematic diagram of the LED display structure provided by the embodiment of the present application is shown in the figure.

[0021] Figure 2 The structural schematic diagram of the LED display structure in the prior art is shown in the figure.

[0022] Figure 3 Another structural schematic diagram of the LED display structure provided by the embodiment of the present application is shown in the figure.

[0023] Figure 4 The structural schematic diagram of the LED lamp bead in the LED display structure provided by the embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0025] In the description of the application, it should be understood that the terms "center", "transverse", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "column", "row" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the application.

[0026] In the application, the word "some embodiments" is used to mean "served as an example, illustration or description". Any embodiment described in this application as an example does not necessarily mean that it is more preferred or more advantageous than other embodiments. The following description is given to enable any person skilled in the art to implement and use the application. In the following description, details are listed for the purpose of explanation. It should be understood that those skilled in the art can recognize that the application can be implemented without using these specific details. In other examples, known structures and processes will not be described in detail to avoid unnecessary details making the description of the application obscure. Therefore, the application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope in accordance with the principles disclosed in this application.

[0027] Please refer to Figure 1 , Figure 1 The structural schematic diagram of the LED display structure provided by the embodiments of the application is shown. As shown in Figure 1 , an LED display structure comprises:

[0028] a PCB board 10;

[0029] a plurality of light-emitting pixels 20 arranged in an array in the row and column directions on the PCB board 10, the light-emitting pixels 20 comprising a plurality of LED lamp beads, each of the LED lamp beads comprising at least a first common electrode end 201, a second common electrode end 203 and a non-common electrode end 202;

[0030] wherein the LED lamp beads of the same light-emitting color in each row of the light-emitting pixels 20 are electrically connected through the first common electrode end 201 and the second common electrode end 203 to form a scanning line 30, and the non-common electrode ends 202 in each column of the light-emitting pixels 20 are electrically connected to form one or more data lines 40.

[0031] As can be seen, Figure 1The LED display structure provided in the present application, by setting a first common electrode end 201 and a second common electrode end 203 in each LED lamp bead, and electrically connecting the LED lamp beads of the same light emitting color in each row of light emitting pixels 20 through the first common electrode end 201 and the second common electrode end 203 to form a scanning line 30, and electrically connecting the non-common electrode ends 202 in each column of light emitting pixels 20 to form one or more data lines 40, wherein the first common electrode end and the second common electrode end in a single LED lamp bead can be electrically connected through connecting metal inside the LED lamp bead, avoiding the technical problem that the scanning line 30 and the data line 40 need to be opened when the wires on the PCB board 10 cross, and realizing high-quality LED display, greatly reducing the manufacturing cost and manufacturing difficulty.

[0032] Specifically, one of the scanning lines 30 is electrically connected with one gate signal pin of the gate chip, and one of the data lines 40 is electrically connected with one data signal pin of the drive chip. The gate chip is provided with at least one gate signal pin, that is, one gate chip can connect one or more scanning lines 30 through the gate signal pin to gate the LED lamp beads in each row of light emitting pixels 20; the drive chip is provided with at least one data signal pin, that is, one drive chip can connect one or more data lines 40 through the data signal pin to control the constant current of the LED lamp beads in each column of light emitting pixels 20. The gate chip and the drive chip can be integrated into one chip, or the gate chip and the drive chip can be separately used as one chip for scanning and driving. The model of the chip used in the present application can be TLC6984 or MBI515.

[0033] Please refer to Figure 2 , Figure 2 The present application provides an LED display structure. The structure diagram of the LED display structure in the prior art is shown in Figure 2 In the prior art, after the common electrode ends of the LED lamp beads in each row of light emitting pixels 20 are electrically connected, only one scanning line 30 is formed, and the non-common electrode ends 202 of the LED lamp beads of the same color in each column of light emitting pixels 20 are electrically connected to form one data line 40. When the LED display structure shown in Figure 2 is scanned and driven, it can be clearly seen that each row of light emitting pixels 20 is scanned only once. In addition, as can be seen from Figure 2 , the data line 40 formed by connecting the LED lamp beads of the same light emitting color in each column of light emitting pixels 20 must intersect with the scanning line 30 formed by connecting the common electrode ends in each row of light emitting pixels 20, so that a through hole must be added on the PCB board 10 to avoid the intersection.

[0034] In the LED display structure provided by the embodiment of the present application, only two common electrode terminals and one non-common electrode terminal 202 are arranged in the LED lamp bead, the two common electrode terminals are a first common electrode terminal 201 and a second common electrode terminal 203, the non-common electrode terminal 202 is arranged between the first common electrode terminal 201 and the second common electrode terminal 203, the first common electrode terminal 201 and the second common electrode terminal 203 are electrically connected in the interior of the LED lamp bead, the connection between the common electrode terminals in the same LED lamp bead can be achieved by the connection metal 50 in the interior of the LED lamp bead, and the connection metal 50 is arranged in the interior of the LED lamp bead, so that the scanning line 30 and the data line 40 do not cross on the PCB 10, and the technical problem of increasing the through hole on the PCB 10 is avoided. In the manufacturing of the LED lamp bead, the connection metal 50 is formed by deposition on the substrate in the LED lamp bead.

[0035] In some embodiments, the connection between the common electrode terminals in each LED lamp bead is electrically connected in the interior of the LED lamp bead, and the common electrode terminals between two adjacent LED lamp beads are electrically connected on the PCB 10. Specifically, two common electrode terminals and one non-common electrode terminal 202 are arranged in each LED lamp bead, the non-common electrode terminal 202 is arranged between the two common electrode terminals, the connection between the two common electrode terminals is electrically connected in the interior of the LED lamp bead, the connection between the common electrode terminals in the same LED lamp bead can be achieved by the connection metal 50 in the interior of the LED lamp bead, and the connection metal 50 is arranged in the interior of the LED lamp bead and arranged according to the arrangement mode of the conventional LED lamp bead, so that the connection between the scanning line 30 and the data line 40 on the PCB 10 is completely avoided, the scanning line 30 and the data line 40 do not need to be routed on different board layers, and the through hole does not need to be increased at the intersection, which not only improves the yield of the PCB 10, but also reduces the number of layers of the PCB 10, greatly reduces the manufacturing difficulty and cost of the PCB 10.

[0036] It can be understood that in the LED display structure provided by the embodiment of the present application, not all LED lamp beads need to be arranged with two common electrode terminals, if the LED lamp beads in each light emitting pixel 20 are arranged from top to bottom on the PCB 10 in sequence, then the first row of LED lamp beads in the first row of light emitting pixels 20 do not need to be arranged with two common electrode terminals, at this time, the connection between the scanning line 30 and the data line 40 in the LED display structure on the PCB 10 can also be completely avoided.

[0037] It can also be understood that the common electrode terminal of the LED lamp bead can be a common cathode terminal or a common anode terminal. The common electrode terminal of the LED lamp bead can be determined as a common cathode terminal or a common anode terminal according to actual application, which is not limited in the embodiment of the present application.

[0038] For example, when the common anode end of the LED lamp bead is a common cathode end, one anode and two cathodes can be arranged in the LED lamp bead, the two cathodes are electrically connected through the connecting metal 50, and both of the two cathodes are welded on the PCB 10. The adjacent cathodes between two adjacent LED lamp beads are electrically connected on the PCB 10, and the anode in each LED lamp bead is arranged between the two cathodes.

[0039] In some embodiments, each of the light-emitting pixels 20 includes a red LED lamp bead 210, a green LED lamp bead 220, and a blue LED lamp bead 230; the red LED lamp beads 210 are arranged in an array on the PCB 10; the green LED lamp beads 220 are arranged in an array on the PCB 10; and the blue LED lamp beads 230 are arranged in an array on the PCB 10.

[0040] It can be understood that each of the light-emitting pixels 20 can be composed of three LED lamp beads or four LED lamp beads. When the light-emitting pixel 20 is composed of three LED lamp beads, the three LED lamp beads can be the red LED lamp bead 210, the green LED lamp bead 220, and the blue LED lamp bead 230. When the light-emitting pixel 20 is composed of four LED lamp beads, the four LED lamp beads can be the red LED lamp bead 210, the green LED lamp bead 220, the blue LED lamp bead 230, and a white LED lamp bead.

[0041] In other embodiments, in each of the red LED lamp bead 210, the green LED lamp bead 220, and the blue LED lamp bead 230, the first common anode end 201 and the second common anode end 203 in each LED lamp bead are electrically connected through the connecting metal 50 inside the LED lamp bead.

[0042] In some embodiments, the common anode ends between two adjacent LED lamp beads are electrically connected on the surface layer of the PCB 10.

[0043] In addition, when the LED display structure provided by the embodiments of the present application is used for LED display, each of the light-emitting pixels 20 is the same, that is, the LED lamp beads at the corresponding positions in each of the light-emitting pixels 20 are the same, the LED lamp beads in each of the light-emitting pixels 20 are vertically arranged, at this time, only the scanning lines 30 are selected and scanned row by row by using the gate chip, and each of the LED lamp beads is lighted column by column by using the driving chip through the data lines 40, so that different light-emitting colors and light-emitting brightness can be displayed in the LED display screen, thereby forming a complete image in the LED display screen.

[0044] In some embodiments, as Figure 3As shown, the non-common electrodes 202 of the LED lamp beads in each column of the light emitting pixels 20 are electrically connected to form a data line 40. Specifically, the non-common electrodes 202 of each LED lamp bead in each column of the light emitting pixels 20 are electrically connected to form a data line 40 in each column of the light emitting pixels 20, and are electrically connected to a pin of the driving chip to provide a constant current source for each LED lamp bead in each column of the light emitting pixels 20, thereby reducing the number of driving chips in the LED display screen, and thus reducing the manufacturing cost of the LED display screen.

[0045] It can be understood that if the common electrodes of the LED lamp beads of the same light emitting color in each row of the light emitting pixels 20 are commonly electrically connected to form a scan line 30, and the non-common electrodes 202 of the LED lamp beads in each column of the light emitting pixels 20 are electrically connected to form a data line 40, although the number of scan lines 30 in the LED display screen is increased, thereby increasing the number of gate chips, the number of scan lines 30 in the LED display screen is greatly reduced, and the overall number of data lines 40 on the PCB 10 is reduced. In addition, the cost of the gate chip is much lower than the cost of the driving chip, thereby further reducing the manufacturing cost of the LED display screen.

[0046] It can also be understood that Figures 1 to 3 The scan lines and the data lines in the above embodiment can be interchanged. For example, when the first common electrodes 201 and the second common electrodes 203 in each column of the light emitting pixels 20 are electrically connected to form a scan line 30, the non-common electrodes 202 in each row of the light emitting pixels 20 are electrically connected to form one or more data lines 40. As can be seen, after the scan lines and the data lines are interchanged, the technical problem of needing to be opened when the scan lines 30 and the data lines 40 cross on the PCB 10 can be solved, and high-quality LED display can be achieved, and the manufacturing cost and difficulty are greatly reduced.

[0047] The LED display structure provided by the embodiment of the present application will be described in detail below by taking a display unit of 16 columns and 9 rows as an example.

[0048] For example, if each light-emitting pixel 20 includes a red LED lamp bead 210, a green LED lamp bead 220 and a blue LED lamp bead 230. In the conventional LED display scanning method, the cathodes of the red LED lamp beads 210, the green LED lamp beads 220 and the blue LED lamp beads 230 of each row of light-emitting pixels 20 are electrically connected to form a scanning line 30, the anodes of the red LED lamp beads 210 of each column of light-emitting pixels 20 are electrically connected to form a data line 40, the anodes of the green LED lamp beads 220 of each column of light-emitting pixels 20 are electrically connected to form a data line 40, and the anodes of the blue LED lamp beads 230 of each column of light-emitting pixels 20 are electrically connected to form a data line 40, at this time, the number of required data lines 40 is 16x3=48, the number of scanning lines 30 is 9, and a total of 57 signals are required; while in the LED display structure provided by the embodiment of the present application, the cathodes of the red LED lamp beads 210 of each row of light-emitting pixels 20 are electrically connected to form a scanning line 30, the cathodes of the green LED lamp beads 220 of each row of light-emitting pixels 20 are electrically connected to form a scanning line 30, and the cathodes of the blue LED lamp beads 230 of each row of light-emitting pixels 20 are electrically connected to form a scanning line 30, the anodes of the red LED lamp beads 210, the green LED lamp beads 220 and the blue LED lamp beads 230 of each column of light-emitting pixels 20 are electrically connected to form a data line 40, at this time, the number of required data lines 40 is 16, the number of scanning lines 30 is 9x3=27, and a total of 43 signals are required. It can be seen from this that the number of signals required on the PCB 10 in the LED display structure provided by the embodiment of the present application is greatly reduced, and the reduction ratio reaches 24.56%.

[0049] The specific structure of the LED lamp bead with two common electrodes and one non-common electrode 202 on the PCB 10 is described in detail below.

[0050] As Figure 4As shown, the PCB 10 is provided with one anode substrate pad 112 and two cathode substrate pads 111, wherein the length and width of the anode substrate pad 112 are both 80 microns, and the length of the cathode substrate pad 111 is 160 microns and the width is 80 microns; the LED lamp bead comprises a light emitter, a substrate 2011, a P-type pad 2012, a first N-type pad 20131 and a second N-type pad 20132, wherein the first N-type pad 20131 and the second N-type pad 20132 are two common cathode terminals of the LED lamp bead respectively, the light emitter is electrically connected to the anode substrate pad 112 through the P-type pad 2012, the P-type pad 2012 is electrically connected to the anode substrate pad 112 through metal tin, the first N-type pad 20131 and the second N-type pad 20132 are respectively electrically connected to one cathode substrate pad 111 through metal tin, the light emitter is arranged between the substrate 2011 and the PCB 10, and the light emitter comprises a P-type conductive metal layer 2014, an N-type conductive metal layer 2015, a Bragg reflection layer 2016, a current expansion layer, a P-type semiconductor 2018, an N-type semiconductor 2019, an insulating protective layer 2020 and an active light-emitting layer 2021, the Bragg reflection layer 2016 is provided with a P-type Bragg reflection layer through hole and an N-type Bragg reflection layer through hole, the P-type pad 2012 is electrically connected to the P-type conductive metal layer 2014 through the P-type Bragg reflection layer through hole, the first N-type pad 20131 and the second N-type pad 20132 are electrically connected to the metal through the N-type Bragg reflection layer through hole, and the Bragg reflection layer 2016 is formed by stacking 28 layers of SiO2 and Ti3O5 materials; the length of the P-type semiconductor 2018 is 80 microns and the width is 50 microns, and the length of the N-type semiconductor 2019 is 100 microns and the width is 55 microns; the insulating protective layer 2020 is provided with a P-type insulating protective layer through hole and an N-type insulating protective layer through hole, the P-type conductive metal layer 2014 is electrically connected to the current expansion layer through the P-type insulating protective layer through hole, the current expansion layer is electrically connected to the P-type semiconductor 2018 to excite holes, and the N-type conductive metal layer 2015 is electrically connected to the step of the N-type semiconductor 2019 through the N-type insulating protective layer through hole to excite electrons; the positive projection of the P-type semiconductor 2018 is smaller than the positive projection of the N-type semiconductor 2019, the part exposed by the N-type semiconductor 2019 serves as a conductive step, and the material of the insulating protective layer is selected from SiO2.

[0051] It can be understood that two or more common electrode terminals, non-common electrode terminals or light emitters can be arranged in the LED lamp bead, and the number of common electrode terminals, non-common electrode terminals or light emitters in the LED lamp bead can be selected according to specific actual conditions, which is not limited in the embodiment.

[0052] In practice, the above units or structures can be realized as independent entities, or combined as the same or several entities, and the specific implementation of the above units or structures can refer to the previous embodiments, which will not be repeated here.

[0053] The above describes in detail the LED display structure provided by the embodiments of the present application. The principles and embodiments of the present application are described by applying specific examples. The above embodiment descriptions are only used to help understand the method of the present application and its core idea. Meanwhile, for those skilled in the art, the specific embodiments and application ranges can be changed according to the idea of the present application. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. An LED display structure, characterized by, The application relates to a display panel, which comprises the following components: a PCB board; a plurality of light-emitting pixels arranged in an array in the form of rows and columns on the PCB board, wherein each light-emitting pixel comprises a plurality of LED lamp beads, and each LED lamp bead comprises at least a first common electrode end, a second common electrode end and a non-common electrode end; if the LED lamp beads of the same light-emitting color in each row of light-emitting pixels are electrically connected through the first common electrode end and the second common electrode end to form a scanning line, then the non-common electrode ends in each column of light-emitting pixels are electrically connected to form one or more data lines; if the LED lamp beads of the same light-emitting color in each column of light-emitting pixels are electrically connected through the first common electrode end and the second common electrode end to form a scanning line, then the non-common electrode ends in each row of light-emitting pixels are electrically connected to form one or more data lines; if one anode substrate pad and two cathode substrate pads are arranged on the PCB board, and the first common electrode end and the second common electrode end are cathode ends; the LED lamp bead comprises a light-emitting body, a substrate, a P-type pad, a first N-type pad and a second N-type pad, the first N-type pad and the second N-type pad are two cathode ends of the LED lamp bead, the light-emitting body is electrically connected to the anode substrate pad through the P-type pad, the P-type pad is electrically connected to the anode substrate pad through metal tin, and the first N-type pad and the second N-type pad are respectively electrically connected to one cathode substrate pad through metal tin; the light-emitting body comprises a P-type conductive metal layer, an N-type conductive metal layer, a Bragg reflection layer, a current expansion layer, a P-type semiconductor, an N-type semiconductor, an insulating protective layer and an active light-emitting layer, and the Bragg reflection layer is provided with a P-type Bragg reflection layer through hole and an N-type Bragg reflection layer through hole; the P-type pad is electrically connected to the P-type conductive metal layer through the P-type Bragg reflection layer through hole, and the first N-type pad and the second N-type pad are electrically connected to the connecting metal through the N-type Bragg reflection layer through hole.

2. The LED display structure of claim 1, wherein, The light-emitting pixel comprises a red LED lamp bead, a green LED lamp bead and a blue LED lamp bead.

3. The LED display structure of claim 2, wherein, In each red LED lamp bead, the first common electrode end and the second common electrode end are electrically connected in the interior of the red LED lamp bead.

4. The LED display structure of claim 3, wherein, In each red LED lamp bead, the first common electrode end and the second common electrode end are electrically connected in the interior of the red LED lamp bead through connecting metal.

5. The LED display structure of claim 2, wherein, In each green LED lamp bead, the first common electrode end and the second common electrode end are electrically connected in the interior of the green LED lamp bead.

6. The LED display structure of claim 5, wherein, In each green LED lamp bead, the first common electrode end and the second common electrode end are electrically connected in the interior of the green LED lamp bead through connecting metal. 7.The LED display structure of claim 2, wherein, In each blue LED lamp bead, the first common electrode end and the second common electrode end are electrically connected in the interior of the blue LED lamp bead.

8. The LED display structure of claim 7, wherein, In the blue LED lamp bead, the first common electrode end and the second common electrode end are electrically connected in the interior of the blue LED lamp bead through connecting metal. 9.The LED display structure of claim 1, wherein, The common pole end between two adjacent LED lamp beads is electrically connected to the surface layer of the PCB. 10.The LED display structure of claim 1, wherein, One of the scanning lines is electrically connected to a gate signal pin of the gate chip, and one of the data lines is electrically connected to a data signal pin of the driving chip.

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