Manufacturing method of display panel, lamp panel and display panel

Abstract

The invention is suitable for the technical field of display, and provides a manufacturing method of a display panel, a lamp panel and the display panel, the manufacturing method comprises the steps of providing a plurality of first circuit boards, installing light-emitting elements on first installation positions on the first circuit boards respectively, and splicing a plurality of lamp panels into the display panel according to a first splicing gap, or the light-emitting elements are installed on the second installation positions respectively, and the multiple lamp panels are spliced into the display panel according to the second splicing gaps. When the display panels of different sizes are manufactured, large-size circuit boards do not need to be manufactured one by one, only universal and small-size lamp panels need to be manufactured, the small-size lamp panels are relatively simple in wiring design and manufacturing, for example, the first circuit board can be a single-layer circuit board; in addition, connection wiring between the lamp panels is not restricted by the first circuit board, the design is relatively simplified, and the design cost and the processing and manufacturing cost of the display panel are reduced on the whole.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a method for manufacturing a display panel, a light board, and a display panel. Background Art

[0002] Mini-LED (Mini Light-Emitting Diode) display screens have become the mainstream product for large-size mid-to-high-end displays. They can control light in different zones and have high contrast ratios. They can rival the display effects of OLED (Organic Light-Emitting Diode), and they also have the advantages of longer life and higher brightness compared to OLED.

[0003] Due to the large number of Mini-LEDs, complex partitioned light control wiring, and the increasing size of the overall circuit board, the cost of Mini-LED displays has always been high and the production is relatively complex. For each size of display screen required by the user, it is necessary to carry out the corresponding on-board wiring design, light-emitting element location design, and manufacture a multi-layer circuit board of the corresponding size, and then weld a large number of Mini-LEDs. Display screens of adjacent sizes are similar in wiring design, which also causes duplication of design work, which further increases the cost of manufacturing. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a method for manufacturing a display panel, aiming to solve the technical problem of high cost in the existing display screen manufacturing.

[0005] The embodiment of the present application is implemented as follows: a method for manufacturing a display panel, providing a plurality of first circuit boards, wherein a plurality of first mounting positions and a plurality of second mounting positions are provided on the first circuit boards, a first distance is provided between adjacent first mounting positions, and a second distance is provided between adjacent second mounting positions; the first distance and the second distance are not equal

[0006] providing a plurality of light emitting elements;

[0007] The light-emitting elements are respectively installed at the first installation positions, and the light-emitting elements are electrically connected to the first circuit board to obtain a plurality of light boards, and the plurality of light boards are spliced ​​into a display panel according to a first seam gap, wherein the distance between two adjacent light-emitting elements on adjacent light boards is the first distance; or, the light-emitting elements are respectively installed at the second installation positions, and are connected to the first circuit board to obtain a plurality of light boards, and the plurality of light boards are spliced ​​into a display panel according to a second seam gap, wherein the distance between two adjacent light-emitting elements on adjacent light boards is the second distance.

[0008] In one embodiment, it also includes:

[0009] A second circuit board is provided, each of the light boards is spliced ​​onto the second circuit board, and each of the first circuit boards is electrically connected to the second circuit board.

[0010] Another object of the present application is to provide a light board, comprising a first circuit board and a plurality of light-emitting elements, wherein a first surface of the first circuit board is provided with a plurality of first mounting positions and a plurality of second mounting positions, a first surface of the first circuit board is provided with a plurality of first mounting positions and a plurality of second mounting positions, a first distance is provided between adjacent first mounting positions, and a second distance is provided between adjacent second mounting positions; a plurality of first solder pads are provided on the second surface of the first circuit board; and the first distance and the second distance are not equal;

[0011] The light-emitting elements are respectively arranged at the first mounting positions and electrically connected to the first pads; or the light-emitting elements are respectively arranged at the second mounting positions and electrically connected to the first pads.

[0012] In one embodiment, a first marking structure is provided on the first surface, and the first marking structure includes a first indication line for indicating the first installation position, and / or a second indication line for indicating the second installation position.

[0013] In one embodiment, the first pad includes a positive pad and a negative pad, and two through holes are provided on the first circuit board corresponding to each of the first mounting positions and each of the second mounting positions, and two pins of the light-emitting element are connected to the positive pad and the negative pad via the two through holes;

[0014] Alternatively, the first pad includes two positive pads and two negative pads, the two positive pads are connected in parallel, the two negative pads are connected in parallel, two through holes are provided on the first circuit board corresponding to each of the first mounting positions and each of the second mounting positions, and the two pins of the light-emitting element are connected to one of the positive pads and one of the negative pads via the two through holes.

[0015] In one embodiment, the light board further includes a second soldering pad, the second soldering pad is electrically connected to each of the first soldering pads, the second soldering pad is arranged on a side of the first circuit board, and is flush with the side of the first circuit board or concave relative to the side of the first circuit board.

[0016] In one embodiment, the first mounting positions are arranged in N rows and N columns on the first circuit board, and the second mounting positions are arranged in M ​​rows and M columns on the first circuit board; N and M are both integers greater than 0.

[0017] Another object of the present application is to provide a display panel, comprising a plurality of light boards as described in the above embodiments, wherein the gap between the light boards is greater than or equal to 0, and the distance between two adjacent light-emitting elements on two adjacent light boards is equal to the distance between two adjacent light-emitting elements on one light board.

[0018] In one embodiment, the display panel further includes a second circuit board, each of the light boards is disposed on the second circuit board, and each of the first circuit boards is electrically connected to the second circuit board.

[0019] In one embodiment, a plurality of second marking structures for indicating the position of the light board are provided on the surface of the second circuit board.

[0020] The manufacturing method of the display panel, the light board and the display panel provided in the embodiments of the present application have the following beneficial effects:

[0021] The manufacturing method of the display panel provided in the embodiment of the present application is formed by splicing a plurality of light boards, and each light board has at least two groups of mounting positions at different distances, so that after the light boards are spliced ​​according to different splicing gaps, at least two sizes of display panels are obtained, and the light-emitting elements on the display panels are evenly arranged. In this way, when manufacturing display panels of different sizes, it is not necessary to manufacture large-sized circuit boards one by one, but only to manufacture universal, small-sized light boards. The wiring design and manufacturing of small-sized light boards are relatively simple. For example, the first circuit board can be a single-layer circuit board; the connection wiring between the light boards is not restricted by the first circuit board, and the design is relatively simplified, which reduces the design cost and processing and manufacturing cost of the display panel as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 is a schematic diagram of the structure of a lamp board provided in an embodiment of the present application, wherein the light emitting element is installed in a first installation position;

[0024] Figure 2 is a schematic diagram of the structure of a light board provided in an embodiment of the present application, wherein the light emitting element is installed at a second installation position;

[0025] Figure 3 is a schematic diagram of the front structure of the first circuit board in the lamp board provided in an embodiment of the present application;

[0026] Figure 4is a schematic diagram of the back structure of the first circuit board in the lamp board provided in an embodiment of the present application;

[0027] Figure 5 is a schematic diagram of the structure of a display panel provided in an embodiment of the present application, wherein a first joint gap is provided between the light panels;

[0028] Figure 6 yes Figure 5 A schematic structural diagram of a second circuit board in a display panel provided in an embodiment;

[0029] Figure 7 is a schematic diagram of the structure of a display panel provided in an embodiment of the present application, wherein a second joint gap is provided between the light panels;

[0030] Figure 8 yes Figure 7 A schematic structural diagram of a second circuit board in a display panel provided in an embodiment;

[0031] Fig. 9 This is a first step flow chart of the method for manufacturing a display panel provided in an embodiment of the present application;

[0032] Fig.10 This is a second step flow chart of the method for manufacturing a display panel provided in an embodiment of the present application.

[0033] The meanings of the marks in the figure are:

[0034] 200-display panel;

[0035] 9-second circuit board, 91-third solder pad, 92-second marking structure;

[0036] 100-light board;

[0037] 5-first circuit board, 53-first marking structure, 531-first marking line, 532-second marking line, 54-first pad, 541-positive pad, 542-negative pad, 55-second pad, 56-routing, 57-first surface, 58-second surface;

[0038] 6-light emitting element;

[0039] d1-first distance, d2-second distance, D1-first seam gap, D2-second seam gap. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0041] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly or indirectly fixed or disposed on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of this patent. The terms "first" and "second" are only used for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0042] In order to illustrate the technical solution described in this application, a detailed description is given below in conjunction with specific drawings and embodiments.

[0043] See also Figures 1 to 3 As shown, the present application first provides a lamp board 100 in an embodiment, which includes a first circuit board 5 and a plurality of light-emitting elements 6; wherein the first surface 57 of the first circuit board 5, defined as the front side of the first circuit board 5, is provided with a plurality of first mounting positions and a plurality of second mounting positions (not shown) for mounting the light-emitting elements 6, and the second surface 58 of the first circuit board 5, defined as the back side of the first circuit board 5, is provided with a plurality of first solder pads 54; see Figure 3 As shown, the distance between adjacent first installation positions is the first distance d1, and the distance between adjacent second installation positions is the second distance d2. Each light emitting element 6 is uniformly arranged in one of the first installation position and the second installation position. Figure 1 As shown, when the light emitting elements 6 are respectively installed in the first installation position, the light emitting elements 6 can form an electrical connection with the first solder pad 54, and the distance between two adjacent light emitting elements 6 is the first distance d1; see Figure 2 As shown, when the light emitting elements 6 are respectively installed in the second installation position, the light emitting elements 6 can form an electrical connection with the first pad 54, and the distance between two adjacent light emitting elements 6 is the second distance d2. The first distance d1 is greater than or equal to 0, and the second distance d2 is greater than the first distance d1.

[0044] In the light board 100 of this embodiment, the light emitting elements 6 can be arranged according to the first distance d1 or the second distance d2, which allows the light board 100 to be spliced ​​according to different splicing gaps. When the light board 100 is spliced ​​according to different splicing gaps to obtain two display panels 200 of different sizes, the distances between any two adjacent light emitting elements 6 on the entire display panel 200 can be equal. This includes, see Figure 5 and Figure 6As shown, the light boards 100 are spliced ​​according to the first splicing gap D1, and the distance between two light-emitting elements 6 close to each other on two adjacent light boards 100 is the first distance d1, and the distance between two adjacent light-emitting elements 6 on the same light board 100 is also the first distance d1. At this time, the obtained display panel 200 has a first size, and, see Figure 7 and Figure 8 As shown, the light boards 100 are spliced ​​according to the second seam gap D2, the distance between two light emitting elements 6 close to each other on two adjacent light boards 100 is the second distance d2, and the distance between two adjacent light emitting elements 6 on the same light board 100 is also the second distance d2, at this time, the obtained display panel 200 has a second size. The first seam gap D1 is greater than or equal to 0, and the second seam gap D2 is not equal to the first seam gap D1.

[0045] In the lamp board 100 of this embodiment, the light-emitting elements 6 can be arranged at different positions on the front of the first circuit board 5 to achieve at least two arrangements with different spacings. Thus, by splicing the lamp boards 100 at different splicing gaps, at least two display panels 200 of different sizes can be obtained, and the light-emitting elements 6 on the display panels 200 of each size are evenly arranged. This allows display panels 200 of different sizes to be assembled by lamp boards 100 of the same size, expanding the splicing and assembly flexibility of the display panels 200, reducing the difficulty and work repetition of processing and manufacturing large-size display panels 200, and also reducing the production cycle to a certain extent. The versatility of the lamp board 100 and its first circuit board 5 is improved, reducing the large amount of design, processing and manufacturing of lamp boards 100 of different sizes, and reducing the production cost as a whole.

[0046] Two display panels 200 of adjacent sizes, such as 85-inch and 86-inch display panels 200, can be spliced ​​using light panels 100 of the same size; and 98-inch and 100-inch display panels 200 can be spliced ​​using light panels 100 of the same size.

[0047] It should also be noted that it is not limited to two display panels 200 of adjacent sizes. When the distance between the light-emitting elements 6 between two display panels 200 of non-adjacent sizes conforms to the division of the first distance d1 and the second distance d2, it can also be obtained by splicing light panels 100 of the same size but different numbers.

[0048] The light-emitting element 6 may be an LED (Light-emitting Diode) or other types of light-emitting components. The size of the light-emitting element 6 is not limited.

[0049] The first circuit board 5 may be a flexible circuit board or a hard circuit board, such as a glass-based circuit board, an aluminum-based circuit board, etc.

[0050] The light emitting elements 6 are distributed in a two-dimensional array on the front of the first circuit board 5. The form of the array is not limited as long as it meets the display requirements. Figure 1 and Figure 2 As shown, the light emitting elements 6 are arranged in a rectangular array along a first direction and a second direction perpendicular to each other, so the first distance d1 between two adjacent light emitting elements 6 includes the distance along the first direction and the distance along the second direction between the two light emitting elements 6. On each light board 100 and the entire display panel 200, the distance along the first direction between any two adjacent light emitting elements 6 is equal, and the distance along the second direction is equal.

[0051] In an optional embodiment, the distance between two adjacent light emitting elements 6 along the first direction and along the second direction on the light board 100 is equal, and both are d1 or d2. This example is used in the following description and illustrations of the present application.

[0052] The aforementioned multiple light panels 100 are spliced ​​into a display panel 200 according to different joint gaps. When each light panel 100 is directly fixed to a desired position and forms a display panel 200, such as a wall, no matter whether the joint gap between the light panels 100 is 0 or greater than 0, other retaining structures (not shown) can be connected between the light panels 100 to assist in maintaining the corresponding joint gap between the two light panels 100, or there may be no such retaining structure. When the display panel 200 formed by the splicing of the light panels 100 is an independent shipping product and is installed according to user requirements, the retaining structure can be optionally connected between the light panels 100, especially when the joint gap between the light panels 100 is greater than 0.

[0053] The shape of the first circuit board 5 is not limited, and may be a rectangle or other shapes, as long as it is convenient to design installation positions at different distances.

[0054] In an optional embodiment, the first circuit board 5 is in a square shape, and the first mounting position and the second mounting position are arranged in N×N, where N is an integer greater than 0. Such a first circuit board 5 is conducive to fine-tuning the arrangement between the mounting positions and has better adaptability to display panels 200 of different sizes. Figure 1 and Figure 2 As shown, taking N=3 as an example, at this time, the first installation position and the second installation position located at the center coincide with each other.

[0055] Not limited to a square, in other optional embodiments, the first circuit board 5 may have other shapes. In other optional embodiments, the first mounting position and the second mounting position may also be arranged in other forms, such as the first mounting position is arranged in N×N, and the second mounting position N is arranged in M×M, where N and M are both integers greater than 0, and N and M are not equal.

[0056] The first mounting position and the second mounting position mentioned above refer to two areas set on the front side of the first circuit board 5, that is, at least a part of the area covered by the light emitting element 6. A first marking structure 53 can be provided on any area to assist the staff to quickly and accurately install the light emitting element 6 in place.

[0057] In one embodiment, the first marking structure 53 provided on the first surface 57 includes a first indicating line for indicating the first installation position and a second indicating line for indicating the second installation position. The forming method of these marking lines is not limited, and they can be printed, sprayed, or manufactured by a certain layer structure during the manufacturing process of the first circuit board 5.

[0058] For example, the first indicator line and the second indicator line are both cross lines. Figure 1 and Figure 2 In the figure, the first indicator line and the second indicator line are both shown as dotted lines, and the central intersection of the cross lines is used to indicate the central position of the light emitting element 6. In this way, the distance between the two central intersections can define the distance between the light emitting elements 6. Alternatively, the first indicator line and the second indicator line are both points, which are used to respectively indicate the positions of the two pins of the light emitting element 6, or the central position of the light emitting element 6, etc.

[0059] In other optional embodiments, the first marking structure 53 may be a structure such as a groove and / or a protrusion formed on the first circuit board 5. The first marking structure 53 is preferably arranged so as not to cause a significant impact on the picture when the display panel displays the picture normally.

[0060] In other optional embodiments, the first marking structure 53 may include only the first marking line, or only the second marking line.

[0061] More specific implementation forms of the first marking structure 53 will not be listed one by one, as long as it can provide a prompt and positioning for the installation of the light-emitting element 6.

[0062] The first solder pad 54 is located on the back of the first circuit board 5, and the light emitting element 6 emits light on the front of the first circuit board 5. Therefore, a through hole (not shown) is provided on the first circuit board 5 for the pins of the light emitting element 6 to pass through. Optionally, two through holes are provided on the first circuit board 5 corresponding to each first mounting position and the second mounting position.

[0063] See also Figure 4 As shown, in one embodiment, the first welding pad 54 includes two positive welding pads 541 and two negative welding pads 542, the two positive welding pads 541 are connected in parallel, and the two negative welding pads 542 are connected in parallel, one positive welding pad 541 and one negative welding pad 542 correspond to the first installation position, and the other positive welding pad 541 and the other negative welding pad 542 correspond to the second installation position. Figure 4 In the figure, the positive pad is represented by a solid circular point, and the negative pad is represented by a solid triangular point. When the light-emitting element 6 is installed in the first installation position, its two pins can be connected to a positive pad 541 and a negative pad 542 respectively through two through holes. When the light-emitting element 6 is installed in the second installation position, its two pins are connected to another positive pad 541 and another negative pad 542 respectively through another two through holes. The purpose of this design is that the positions of the positive pad 541 and the negative pad 542 can be as close as possible to the corresponding through holes, and when the pins of the light-emitting element 6 pass through, they directly reach the first pad 54 without requiring a long extension distance.

[0064] Alternatively, in an optional embodiment, the first pad 54 includes a positive pad 541 and a negative pad 542, and two through holes are provided on the first circuit board 5 corresponding to each first mounting position and each second mounting position, and the two pins of the light-emitting element 6 can be connected to the positive pad 541 and the negative pad 542 via the two through holes. That is, when the light-emitting element 6 is mounted in the first mounting position, its two pins can be connected to the positive pad 541 and the negative pad 542 respectively through the two through holes, and when the light-emitting element 6 is mounted in the second mounting position, its two pins can be connected to the positive pad 541 and the negative pad 542 respectively through the other two through holes. In this embodiment, the number of positive pads 541 and negative pads 542 can be reduced, simplifying the production of the first circuit board 5.

[0065] It should be noted here that Figure 4 In the figure, the first marking line 531 and the second marking line 532 are schematically indicated on the second surface 58 of the first circuit board 5, which does not mean that the first marking line 531 and the second marking line 532 must be provided on the second surface 58. Here, it is only used to indicate the correspondence between the first marking line 531 and the second marking line 532 and the positive electrode pad 541 and the negative electrode pad 542.

[0066] On the entire lamp board 100, the first solder pads 54 may be connected in series in sequence, as shown in FIG. Figure 4 As shown, multiple first pads 54 are connected in series in sequence through routing 56, and the solid straight line on the second surface 58 represents routing 56; alternatively, the first pads 54 can be all connected in parallel; alternatively, the first pads 54 can also be connected in series and parallel, for example, nine first pads 54 can be electrically connected in a three-in-one and three-in-parallel manner.

[0067] See also Figure 4As shown, in one embodiment, the lamp board 100 also includes a second soldering pad 55, which is electrically connected to each first soldering pad 54 through a wiring 56. The second soldering pad 55 of one lamp board 100 is used to connect to the second soldering pad 55 of an adjacent lamp board 100, which can be connected in series or in parallel, thereby forming an electrical connection between adjacent lamp boards 100.

[0068] Alternatively, if Figure 3 and Figure 4 As shown, the second solder pad 55 is arranged on the side of the first circuit board 5, and is flush or concave relative to the side of the first circuit board 5. The purpose of such arrangement is that the second solder pad 55 will not protrude from the edge of the first circuit board 5, and when two light boards 100 are spliced, the second solder pad 55 will not occupy the splicing gap between the two light boards 100, so that small gap splicing or even gapless splicing between the two light boards 100 can be achieved.

[0069] Please refer to Figures 5 to 8 As shown, an embodiment of the present application also provides a display panel 200, which includes a plurality of light boards 100 as described in the above embodiments, wherein the plurality of light boards 100 are spliced ​​with each other, and the distance between two light-emitting elements 6 close to each other on two adjacent light boards 100 is equal to the distance between two adjacent light-emitting elements 6 on one light board 100.

[0070] The display panel 200 provided in the embodiment of the present application is spliced ​​by the above-mentioned universal lamp panels 100, has high assembly flexibility, reduces the difficulty of processing and manufacturing large-size display panels 200, reduces a large number of similar designs, processing and manufacturing of wiring, and reduces production costs overall.

[0071] See also Figure 6 Hehe Figure 8 As shown, in one embodiment, the display panel 200 further includes a second circuit board 9, and each lamp board 100 is spliced ​​on the surface of the second circuit board 9 and electrically connected to the second circuit board 9. Specifically, a plurality of third solder pads 91 are provided on the second circuit board 9, and the lamp board 100 can be electrically connected to the third solder pads 91 of the second circuit board 9 through its second solder pad 55.

[0072] The second circuit board 9 may be a flexible circuit board or a hard circuit board, such as a glass-based circuit board, an aluminum-based circuit board, etc.

[0073] In an optional embodiment, the edge of the second circuit board 9 may be flush with the outermost edge of each light board 100 after splicing, or the edge of the second circuit board 9 may be relatively concave or protruding, depending on the edge design requirements of the display panel 200 .

[0074] In a specific embodiment, the edge of the second circuit board 9 is flush with the outermost edge of each light board 100 after splicing, or the edge of the second circuit board 9 is relatively protruding. That is, at this time, the size of the display panel 200 is determined by the size of the second circuit board 9.

[0075] For example, see Figure 6 As shown, the size of the second circuit board 9 is the first size, and a plurality of light boards 100 are arranged on the surface of the second circuit board 9, and a first joint gap D1 is maintained between the light boards 100. At this time, the edge of the second circuit board 9 is flush with the outermost edge of the light board 100; Figure 8 As shown, the size of the second circuit board 9 is the second size, a plurality of lamp boards 100 are arranged on the second circuit board 9, and a second joint gap D2 is maintained between the lamp boards 100. At this time, the edge of the second circuit board 9 protrudes from the outermost edge of the lamp board 100. In this way, two second circuit boards 9 of different sizes are combined with the same number of lamp boards 100 to obtain two display panels 200 of different sizes, and the light-emitting elements 6 on the two display panels 200 are evenly distributed.

[0076] The second circuit board 9 may be provided with a second marking structure 92 for indicating the position of each light board 100. For example, the second marking structure 92 may be a frame-shaped indicating line corresponding to the edge contour of the light board 100. Figure 6 and Figure 8 In the figure, the frame-shaped indicator line is shown by a dotted line. In other embodiments, the second marking structure 92 may have other forms.

[0077] In one embodiment, the display panel 200 further includes a bottom plate (not shown), and each lamp panel 100 is fixed on the surface of the bottom plate to maintain the corresponding joint gap. Here, the bottom plate can be a form of the aforementioned holding structure.

[0078] In some embodiments, the bottom plate and the second circuit board 9 may be at least partially integrated. For example, when the second circuit board 9 is a hard circuit board, it may simultaneously function to electrically connect the light boards 100 and to carry the light boards 100. In some embodiments, the bottom plate and the second circuit board 9 are two independent structures. The display panel 200 may include the second circuit board 9 and the bottom plate disposed on the side of the second circuit board 9 away from the light board 100.

[0079] See also Fig. 9 As shown, the embodiment of the present application also provides a method for manufacturing a display panel 200, which is formed by splicing the light panels 100 described in the above embodiments. Specifically, the manufacturing method includes:

[0080] A plurality of first circuit boards 5 are provided, wherein a plurality of first mounting positions and a plurality of second mounting positions are provided on the first circuit boards 5, wherein the distance between adjacent first mounting positions is a first distance d1, and the distance between adjacent second mounting positions is a second distance d2;

[0081] Providing a plurality of light emitting elements 6;

[0082] The light-emitting elements 6 are respectively installed at the first installation positions and connected to the first circuit board 5 to obtain a plurality of light boards 100, and the plurality of light boards 100 are spliced ​​into a display panel 200 according to the first seam gap D1, wherein on each light board 100, the distance between adjacent light-emitting elements 6 is the first distance d1, and the distance between adjacent light-emitting elements 6 on adjacent light boards 100 is also the first distance d1; or, the light-emitting elements 6 are respectively installed at the second installation positions and connected to the first circuit board 5 to obtain a plurality of light boards 100, and the plurality of light boards 100 are spliced ​​into a display panel 200 according to the second seam gap D2, wherein on each light board 100, the distance between adjacent light-emitting elements 6 is the second distance d2, and the distance between adjacent light-emitting elements 6 on adjacent light boards 100 is also the second distance d2.

[0083] The manufacturing method of the display panel 200 provided in the embodiment of the present application is formed by splicing a plurality of lamp boards 100, and each lamp board 100 has two sets of mounting positions at different distances, so that after the lamp boards 100 are spliced ​​according to different splicing gaps, two sizes of display panels 200 are obtained, and the light-emitting elements 6 are evenly arranged on the entire display panel 200. In this way, when manufacturing display panels 200 of different sizes, it is not necessary to manufacture large-sized circuit boards one by one, but only to manufacture universal, small-sized lamp boards 100. The wiring design and manufacturing of the small-sized lamp boards 100 are relatively simple. For example, the first circuit board 5 can be a single-layer circuit board; the connection wiring between the lamp boards 100 is not restricted by the first circuit board 5, and the design is relatively simplified, which reduces the design cost and processing and manufacturing cost of the display panel 200 as a whole, and also reduces the manufacturing cycle to a certain extent.

[0084] In one embodiment, see Fig.10 As shown, in the manufacturing method, the said splicing of multiple light boards 100 into a display panel 200 according to the first splicing gap D1 includes: providing a second circuit board 9, splicing multiple light boards 100 on the surface of the second circuit board 9 according to the first splicing gap D1, and electrically connecting each light board 100 to the second circuit board 9. The said splicing of multiple light boards 100 into a display panel 200 according to the second splicing gap D2 includes: providing a second circuit board 9, splicing multiple light boards 100 on the surface of the second circuit board 9 according to the second splicing gap D2, and electrically connecting each light board 100 to the second circuit board 9.

[0085] The connection wiring between the multiple light boards 100 is realized through an additional second circuit board 9. Since the wiring design has been simplified at this time, the design and manufacture of the second circuit board 9 can also be simplified accordingly. For example, the second circuit board 9 can also be a single-layer circuit board. At this time, the wiring connection between the light boards 100 can be completed by directly welding each light board 100 to the second circuit board 9, which simplifies the assembly steps of the display panel 200.

[0086] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method for manufacturing a display panel, characterized in that: include: A plurality of first circuit boards are provided, wherein a plurality of first mounting positions and a plurality of second mounting positions are provided on the first circuit boards, a first distance is provided between adjacent first mounting positions, and a second distance is provided between adjacent second mounting positions; the first distance and the second distance are not equal; providing a plurality of light emitting elements; The light-emitting elements are respectively installed at the first installation positions, and the light-emitting elements are electrically connected to the first circuit board to obtain a plurality of light boards, and the plurality of light boards are spliced ​​into a display panel according to a first seam gap, wherein the distance between two adjacent light-emitting elements on adjacent light boards is the first distance; or, the light-emitting elements are respectively installed at the second installation positions, and are connected to the first circuit board to obtain a plurality of light boards, and the plurality of light boards are spliced ​​into a display panel according to a second seam gap, wherein the distance between two adjacent light-emitting elements on adjacent light boards is the second distance.

2. The method for manufacturing a display panel according to claim 1, wherein: Also includes: A second circuit board is provided, each of the light boards is spliced ​​onto the second circuit board, and each of the first circuit boards is electrically connected to the second circuit board.

3. A light board, characterized in that: The invention comprises a first circuit board and a plurality of light-emitting elements, wherein a first surface of the first circuit board is provided with a plurality of first mounting positions and a plurality of second mounting positions, a first distance is provided between adjacent first mounting positions, and a second distance is provided between adjacent second mounting positions; a second surface of the first circuit board is provided with a plurality of first solder pads; and the first distance and the second distance are not equal; The light-emitting elements are respectively arranged at the first mounting positions and electrically connected to the first pads; or the light-emitting elements are respectively arranged at the second mounting positions and electrically connected to the first pads.

4. The light board according to claim 3, characterized in that: A first marking structure is disposed on the first surface; the first marking structure includes a first indication line for indicating the first installation position, and / or a second indication line for indicating the second installation position.

5. The light board according to claim 3, characterized in that: The first pad includes a positive pad and a negative pad, and two through holes are provided on the first circuit board corresponding to each of the first mounting positions and each of the second mounting positions, and two pins of the light-emitting element are connected to the positive pad and the negative pad via the two through holes; Alternatively, the first pad includes two positive pads and two negative pads, the two positive pads are connected in parallel, the two negative pads are connected in parallel, two through holes are provided on the first circuit board corresponding to each of the first mounting positions and each of the second mounting positions, and the two pins of the light-emitting element are connected to one of the positive pads and one of the negative pads via the two through holes.

6. The light board according to claim 3, characterized in that: The lamp board also includes a second soldering pad, which is electrically connected to each of the first soldering pads. The second soldering pad is arranged on the side of the first circuit board and is flush with the side of the first circuit board or concave relative to the side of the first circuit board.

7. The light board according to claim 3, characterized in that: The first mounting positions are arranged in N rows and N columns on the first circuit board, and the second mounting positions are arranged in M ​​rows and M columns on the first circuit board; N and M are both integers greater than 0.

8. A display panel, characterized in that: It comprises a plurality of light boards as claimed in any one of claims 3 to 7, wherein the gap between the light boards is greater than or equal to 0, and the distance between two adjacent light-emitting elements on two adjacent light boards is equal to the distance between two adjacent light-emitting elements on one light board.

9. The display panel according to claim 8, wherein: The display panel further includes a second circuit board, each of the light boards is arranged on the second circuit board, and each of the first circuit boards is electrically connected to the second circuit board.

10. The display panel according to claim 9, wherein: A plurality of second marking structures for indicating the positions of the light boards are arranged on the surface of the second circuit board.

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