LED packaging structure and LED screen processing method

Abstract

The embodiments of the present application belong to the field of LED screen processing technology, and relate to an LED packaging structure and an LED screen processing method. The LED packaging structure includes at least one first LED unit, in which four groups of LED lamp beads arranged in two vertical and two horizontal directions are provided. The four groups of LED lamp beads are rotationally symmetrical at ninety degrees, so that the four groups of LED lamp beads are adjacent to each other, and the LED light sources at the adjacent parts of the LED lamp beads have the same color. The technical solution provided by the present application can form a first LED unit by arranging the LED lamp beads in two vertical and two horizontal directions and in ninety-degree rotational symmetry. The LED light sources at the adjacent parts of the LED lamp beads in the first LED unit have the same color, and can be powered by the same wire during the wiring process. Therefore, the precision requirements during the processing are lower. At the same time, after the first LED unit is formed, when the LED lamp beads are arranged on the substrate, they are arranged in units of the first LED unit. This eliminates the influence of unit conversion on the LED screen processing, and facilitates the processing of high-resolution LED screens.

Description

Technical Field

[0001] The present application relates to the technical field of LED screen processing, and more specifically, to an LED packaging structure and an LED screen processing method. Background Art

[0002] The LED screen displays images through the principle of dot matrix. There are multiple groups of LED light sources in the LED screen. The colors of the LED light sources are different. Red, pink, green and blue lamp beads form a group. The brightness of each LED light source in a group is controlled by different brightness, and the required color is formed externally through the principle of color interference. Obviously, the luminous power of each LED light source needs to be controlled separately, so that different LED light sources can be controlled to emit light of different intensities to form interference light of corresponding colors.

[0003] In the process of processing LED screens, it is necessary to process at least one group of LEDs. In the process of processing, each LED lamp needs to be welded, and in the process of welding, LEDs of different colors cannot interfere with each other.

[0004] An important indicator for evaluating the performance of LED screens is resolution. Resolution refers to the number of light points that can be displayed per unit size. Obviously, when the resolution of an LED screen increases, the processing of the LED screen will become more refined, the spacing between the individual LED light sources will decrease, and the wiring density of the substrate where the LEDs are located will also increase, which will increase the number of holes drilled on the substrate. First, when processing LEDs, it is necessary to convert the length unit. If the resolution of the LED screen is low, the size of the error caused by the unit conversion will not affect the processing of the LED. However, if the resolution of the LED screen is high, this effect will gradually increase. Secondly, if the holes on the substrate where the LEDs are located are too many and too dense, on the one hand, the requirements for the processing technology will increase, and on the other hand, it will also affect the performance of the board. In this way, the yield rate of the LED screen will be significantly reduced. Summary of the Invention

[0005] The technical problem to be solved by the embodiments of the present application is to provide an LED packaging structure and a processing method to meet the processing needs of LED screens with high resolution.

[0006] In order to solve the above technical problems, the present invention provides an LED packaging structure, which adopts the following technical solutions:

[0007] An LED packaging structure includes at least one first LED unit, wherein the first LED unit is provided with four groups of LED lamp beads arranged in two vertical and two horizontal directions, and the LED lamp beads are provided with LED light sources arranged in two vertical and two horizontal directions. The four groups of LED lamp beads are rotationally symmetrical at 90 degrees so that the four groups of LED lamp beads are adjacent to each other, and the LED light sources at the adjacent parts of the LED lamp beads have the same color.

[0008] Furthermore, the LED packaging structure also includes at least one group of second LED units, which include at least four groups of the first LED units arranged in two vertical and two horizontal directions. The four groups of the first LED units are rotationally symmetrical at ninety degrees so that the four groups of first LED units are adjacent to each other, and the LED light sources at the adjacent parts of the first LED units have the same color.

[0009] Furthermore, the LED packaging structure further includes at least one group of third LED units, and the third LED unit includes at least two groups of the first LED units arranged side by side, and the at least two groups of the first LED units are rotationally symmetrical with each other at ninety degrees.

[0010] Furthermore, the LED packaging structure further includes a substrate, and a plurality of wire holes are provided on the substrate, and two groups of LED light sources with the same color correspond to one wire hole.

[0011] In order to solve the above technical problems, the embodiment of the present application further provides an LED screen processing method, which adopts the following technical solution:

[0012] A method for processing an LED screen comprises the following steps: arranging four groups of LED lamp beads in two horizontal and two vertical arrangements; rotating the four groups of LED lamp beads so that the four groups of LED lamp beads are rotationally symmetrical at ninety degrees to form a first LED unit; and arranging the first LED unit on a substrate to complete the processing of the LED screen.

[0013] Furthermore, the steps of arranging the first LED units on the substrate to complete the packaging of the LED screen specifically include: setting a base point on the substrate based on the size of the first LED unit; setting the first LED unit based on the base point; setting and opening wire holes based on the position of the LED light source, wherein two groups of adjacent LED light sources of the same color correspond to one of the wire holes; and wiring to complete the processing of the LED screen.

[0014] Furthermore, after the step of setting the first LED unit according to the base point, and before setting and opening the wire hole according to the position of the LED light source, the method also includes: rotating the first LED unit so that several first LED units form a second LED unit or a third LED unit.

[0015] Compared with the prior art, the LED packaging structure and LED screen processing method provided by the embodiments of the present application have the following main beneficial effects: by arranging the LED lamp beads into two vertical and two horizontal shapes and rotating them symmetrically at ninety degrees, a first LED unit is formed. The LED light sources at the adjacent parts of the LED lamp beads in the first LED unit have the same color. During the wiring process, power can be supplied through the same wire, reducing the number of holes punched in the supporting substrate. Therefore, the precision requirements during the processing are lower. At the same time, after the first unit is formed, when arranging the LED lamp beads on the substrate, they are arranged in units of the first LED unit. This eliminates the impact of unit conversion on LED screen processing and facilitates the processing of high-resolution LED screens. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the solution of the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 This is a schematic structural diagram of the second LED unit of an embodiment of an LED packaging structure of the present invention;

[0018] Figure 2 This is a schematic structural diagram of the third LED unit of an LED packaging structure embodiment of the present invention.

[0019] Reference numerals:

[0020] a—first LED unit, b—second LED unit, c—first conductive area, d—second conductive area. DETAILED DESCRIPTION

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0022] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0024] The embodiments of the LED packaging structure provided in this application are as follows:

[0025] refer to Figure 1 and Figure 2 The LED packaging structure of the embodiment of the present application includes: at least one group of first LED units a.

[0026] The first LED unit a is provided with four groups of LED beads arranged in two vertical and two horizontal rows. The four groups of LED beads are rotationally symmetrical with each other, so that each of the four groups of LED beads is adjacent to each other and the LED light sources at adjacent locations are the same color. In one first LED unit a, the four groups of LED light sources are adjacent to each other and have the same color, and can be powered by a single wire.

[0027] Specifically, during the LED screen manufacturing process, LED lamp beads are usually used as the most basic unit, fixed to the lead frame through patching and gluing. LED lamp beads include monochrome LED lamp beads and full-color LED lamp beads. One full-color LED lamp bead, or several LED lamp beads, constitute a pixel. As costs decrease and the requirements for display performance increase, LED screens are usually manufactured using full-color LED lamp beads. Each LED lamp bead contains four LED light sources. The LED light sources have different colors, usually red, green and blue plus a secondary color. The red, green and blue lights emit and produce the color required by the user. The secondary color assists the red, green and blue.

[0028] The LED lamp beads in this embodiment are full-color LEDs. The LED lamp beads in this embodiment include four LED light sources of red, green, blue and pink. The four LED light sources are arranged in two horizontal and two vertical structures on the LED lamp beads. Please refer to Figure 1The four groups of LED beads in the first LED unit a form a 4x4 LED light source matrix, in which two adjacent groups of No. 2 beads and two groups of No. 3 beads are arranged on the four edges of the first LED unit a. During the processing of the LED screen, only one wire is required to power two adjacent groups of No. 2 beads or two adjacent groups of No. 3 beads. On this basis, the size of existing LED beads is mil, which is one thousandth of an inch, which is an imperial unit. The software for controlling the processing of LED screens usually uses metric units, and there are errors in unit conversion during use. When the first LED unit a is used as the basic processing unit, metric units are defined for it. Direct layout using metric units can completely overcome the errors caused by unit conversion. During the production of LED screens, processing with the first LED unit a as the minimum unit can greatly reduce the number of processing units, and the distance between the two minimum units is significantly lengthened during the processing process, thus avoiding the impact of resolution improvement on processing accuracy.

[0029] Furthermore, the LED packaging structure also includes at least one group of second LED units b.

[0030] The second LED unit b includes at least four groups of first LED units a arranged in two vertical and two horizontal directions. The four groups of first LED units a are rotationally symmetrical at 90 degrees, so that the four groups of first LED units a are adjacent to each other, and the LED light sources at adjacent locations of the first LED units a have the same color.

[0031] Specifically, the first LED unit a can reduce some of the wires configured for the LED lamp beads, but the LED light sources at the four vertex positions of the first LED unit a cannot be guaranteed to be adjacent to the same LED light sources, so the number of wires cannot be further reduced. The first LED units a are arranged in the form of two horizontal and two vertical, and are rotationally symmetrical with a degree. At this time, the first LED units a are adjacent to each other, and the two groups of No. 1 LED light sources and two groups of No. 4 LED light sources at the vertex corners of adjacent first LED units a have the same color and can be connected through the same wire. This solution can further reduce the amount of wire used per unit area, and if the second LED unit b is used as the processing unit, the spacing between the processing units will also be significantly lengthened, which helps to avoid the impact of resolution improvement on processing accuracy.

[0032] Furthermore, the LED packaging structure also includes at least one group of third LED units.

[0033] The third LED unit includes at least two groups of first LED units a arranged side by side, and the at least two groups of LED units are rotationally symmetrical with each other at ninety degrees.

[0034] Specifically, in the third LED unit, the adjacent LED light sources at fixed points of two adjacent groups of first LED units a have the same color and can be powered by the same wire. Thus, the provision of the third LED unit can significantly reduce the number of wires required for manufacturing an LED screen, thereby lowering the process requirements for manufacturing an LED screen.

[0035] Furthermore, the LED packaging structure also includes a substrate, and a plurality of wire holes are provided on the substrate, and the two groups of LED light sources with the same color correspond to one group of wire holes.

[0036] Specifically, the LED light source needs to be powered by wires, and the LED lamp beads need to be fixed on the substrate. Therefore, in order to cooperate with the power supply of the LED light source, wire holes need to be set on the substrate. In the process of powering two adjacent groups of LED light sources, because the two groups of LED light sources only need to be powered by one wire, only one set of wire holes needs to be provided at the relative positions of the two groups of adjacent LED light sources of the same color. This reduces the number of perforations on the substrate and reduces damage to the structure of the substrate. If there are too many and too dense holes on the substrate where the LEDs are located, on the one hand, the requirements for the processing technology will increase, and on the other hand, it will also affect the performance of the board, so the yield rate of the LED screen will be significantly reduced. This solution significantly reduces the number of holes punched to the wire holes and improves the yield rate.

[0037] Furthermore, the LED packaging structure further includes a lead frame, wherein the lead frame includes a first conductive region c, and two groups of adjacent LED light sources are electrically connected via the first conductive region c.

[0038] Specifically, the lead frame provides power supply for the LED light source. The LED light source is connected to the lead frame through a wire and is powered by a power supply. The lead frame usually insulates the four LED light sources. In this embodiment, a first conductive area c is provided on the lead frame corresponding to two groups of adjacent LED light sources, so that the two groups of LED light sources are electrically connected to the lead frame through a wire.

[0039] Furthermore, the lead frame further includes a second conductive region d, and two groups of cross-arranged LED light sources in the four two vertically and two horizontally arranged LED light sources are respectively connected through the second conductive region d.

[0040] Specifically, in the middle of the first LED unit a, two groups of No. 4 LED light sources and two groups of No. 1 LED light sources are arranged alternately, and the second conductive area d corresponds to the two groups of No. 4 LED light sources and the two groups of No. 1 LED light sources, respectively, and simultaneously supplies power to the two groups of No. 1 LED light sources or the two groups of No. 4 LED light sources, so as to reduce the number of processed parts of the lead frame.

[0041] Embodiments of the LED screen processing method provided in this application:

[0042] A method for processing an LED screen comprises the following steps: arranging four groups of LED lamp beads in two horizontal and two vertical directions; rotating the four groups of LED lamp beads so that the four groups of LED lamp beads are rotationally symmetrical at ninety degrees to form a first LED unit a; and arranging the first LED unit a on a substrate to complete the processing of the LED screen.

[0043] The LED lamp beads in this embodiment are full-color LEDs. The LED lamp beads in this embodiment include four LED light sources of red, green, blue and pink. The four LED light sources are arranged in two horizontal and two vertical structures on the LED lamp beads. Please refer to Figure 1 The four groups of LED beads in the first LED unit a form a 4x4 LED light source matrix. Two adjacent groups of No. 2 beads and two adjacent groups of No. 3 beads are arranged along the four edges of the first LED unit a. During the LED screen manufacturing process, a single wire is required to power two adjacent groups of No. 2 beads or two adjacent groups of No. 3 beads. Furthermore, existing LED beads are measured in mils (thousandths of an inch), an imperial unit, while software for controlling LED screen manufacturing typically uses metric units, which can lead to unit conversion errors during use. By defining metric units for the first LED unit a as the basic manufacturing unit, direct layout using metric units can completely eliminate these unit conversion errors. During the LED screen manufacturing process, using the first LED unit a as the minimum unit for manufacturing can significantly reduce the number of manufacturing units and significantly increase the spacing between the two minimum units during manufacturing, thus mitigating the impact of increased resolution on manufacturing accuracy. The first LED units a are then arranged according to the manufacturing requirements of the LED screen to produce the final LED screen.

[0044] Furthermore, the arrangement of the first LED unit a on the substrate to complete the packaging of the LED screen specifically includes: setting a base point on the substrate based on the size of the first LED unit a; setting the first LED unit a according to the base point; setting and punching according to the position of the LED light source, wherein two groups of adjacent LED light sources of the same color correspond to one hole; and wiring to complete the processing of the LED screen.

[0045] When powering two adjacent sets of LED light sources, only one wire is needed to power them. Therefore, only one set of wire holes is required at the opposing positions of the two adjacent sets of LED light sources of the same color. This reduces the number of perforations on the substrate and minimizes damage to the substrate structure. If the perforations on the substrate where the LEDs are located are too numerous or too dense, not only will the processing requirements be increased, but it will also affect the performance of the substrate, significantly reducing the yield rate of the LED screen. This solution significantly reduces the number of perforations required to reach the wire holes, thereby improving the yield rate.

[0046] Furthermore, after arranging the first LED unit a according to the base point, the method further includes: rotating the first LED unit a so that a plurality of first LED units a form a second LED unit b or a third LED unit.

[0047] Specifically, the first LED unit a can reduce the number of wires required for the LED lamp beads. However, the LED light sources at the four corners of the first LED unit a cannot be guaranteed to be adjacent to the same type of LED light sources, so the number of wires cannot be further reduced. The first LED units a are arranged in a two-horizontal and two-vertical pattern, and are rotationally symmetrical. In this case, the first LED units a are adjacent to each other, and the two groups of No. 1 LED light sources and the two groups of No. 4 LED light sources at the corners of adjacent first LED units a have the same color and can be connected by the same wire. This solution can further reduce the amount of wire used per unit area. If the second LED unit b is used as the processing unit, the spacing between processing units will also be significantly increased, helping to avoid the impact of increased resolution on processing accuracy. Specifically, in the third LED unit, the adjacent LED light sources at the fixed points of two adjacent groups of first LED units a have the same color and can be powered by the same wire. In this way, the provision of the third LED unit can greatly reduce the number of wires required for processing LED screens, reducing the process requirements for processing LED screens.

[0048] Furthermore, after rotating the first LED unit a so that several first LED units a form a second LED unit b or a third LED unit, the method also includes: setting a wire rack so that LED light sources of the same color are respectively opposite to the first conductive area c and the second conductive area d and form an adjacent relationship.

[0049] Specifically, the lead frame provides power to the LED light sources. The LED light sources are connected to the lead frame via wires and powered by a power source. The lead frame typically insulates the four LED light sources. In this embodiment, a first conductive region c is provided on the lead frame corresponding to two adjacent groups of LED light sources. Thus, a single wire electrically connects the two groups of LED light sources to the lead frame. This solution simplifies the structural complexity of the LED screen.

[0050] Obviously, the embodiments described above are only some of the embodiments of the present application, rather than all of the embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present application specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present application.

Claims

1. An LED packaging structure, characterized in that: The device comprises at least one first LED unit, wherein the first LED unit is provided with four groups of LED lamp beads arranged in two vertical and two horizontal directions, and the LED lamp beads are provided with LED light sources arranged in two vertical and two horizontal directions, and the four groups of LED lamp beads are rotationally symmetrical at 90 degrees so that the four groups of LED lamp beads are adjacent to each other, and the LED light sources at the adjacent LED lamp beads have the same color; Among them, the four edges of the first LED unit are respectively arranged with two adjacent groups of No. 2 lamp beads and two groups of No. 3 lamp beads, and the two adjacent groups of No. 2 lamp beads or the two adjacent groups of No. 3 lamp beads are powered by a wire; the LED packaging structure also includes a substrate, and a plurality of wire holes are provided on the substrate, and two groups of LED light sources with the same color correspond to one wire hole; the LED packaging structure also includes at least one group of second LED units, and the second LED units include at least four groups of the first LED units arranged in two vertical and two horizontal directions, and the four groups of the first LED units are rotationally symmetrical at ninety degrees, so that the four groups of first LED units are adjacent to each other, and the LED light sources at the adjacent parts of the first LED units have the same color, and the second LED units are connected by the same wire.

2. The LED packaging structure according to claim 1, wherein: The LED packaging structure further includes at least one group of third LED units, and the third LED unit includes at least two groups of the first LED units arranged side by side, and the at least two groups of the first LED units are rotationally symmetrical with each other at ninety degrees.

3. A method for processing an LED screen, characterized in that: The LED screen processing method is used to prepare the LED packaging structure according to any one of claims 1 to 2, and the method comprises the following steps: Arrange four groups of LED lamp beads two horizontally and two vertically; Rotating the four groups of LED lamp beads so that the four groups of LED lamp beads are rotationally symmetrical at 90 degrees to form a first LED unit; The first LED units are arranged on a substrate and powered by a wire to complete the processing of the LED screen.

4. The LED screen processing method according to claim 3, characterized in that: The steps of arranging the first LED units on the substrate to complete the packaging of the LED screen specifically include: Setting base points on the substrate with the first LED unit size as a unit; According to the base point, a first LED unit is arranged; Wire holes are arranged and opened according to the positions of the LED light sources, wherein two groups of adjacent LED light sources with the same color correspond to one of the wire holes; Wiring to complete the processing of LED screen.

5. The LED screen processing method according to claim 4, characterized in that: After the step of setting the first LED unit according to the base point, and before the step of setting and opening the wire hole according to the position of the LED light source, the method further includes: The first LED units are rotated so that a plurality of first LED units form a second LED unit or a third LED unit.

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