CN114898674A

CN114898674A - Lamp bead arrangement structure for LED display

Info

Publication number: CN114898674A
Application number: CN202210494994.1A
Authority: CN
Inventors: 张海波; 何胜斌
Original assignee: Shenzhen Zhaochi Jingxian Technology Co ltd
Current assignee: Jiangxi Zhaochi Jingxian Co ltd
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2022-08-12

Abstract

The embodiment of the invention discloses a lamp bead arrangement structure for LED display, which comprises: the PCB is provided with a plurality of through holes; the LED lamp beads are arranged on the PCB; the LED lamp beads are distributed on the PCB in a delta shape, and the non-common-pole ends of the LED lamp beads are separately and electrically connected with corresponding components; two in the article font is arranged the homopolar terminal of LED lamp pearl is in the top layer electric connection of PCB board, and pass through the via hole with all the other in the article font is arranged LED lamp pearl's homopolar terminal electric connection. The invention can not only reduce the number of the holes on the PCB, but also does not need to increase the area of the PCB, thereby greatly improving the yield of the PCB and simultaneously reducing the material cost required by manufacturing the LED lamp panel.

Description

Lamp bead arrangement structure for LED display

Technical Field

The invention relates to the technical field of LED display, in particular to a lamp bead arrangement structure for LED display.

Background

Light Emitting Diodes (LEDs) are favored by many people due to their high color saturation and long service life, and are becoming more and more widely used, including indoor lighting, road lighting, advertising displays, LCD television backlights, traffic lights, and decorative lighting. Among them, the LED is the first choice technology for the ultra-large display screen, and is also a candidate technology for the future high-definition television display screen.

At present, when designing and producing LED display screen, need carry out too much trompil or increase the width of PCB board to the PCB board usually, but too much trompil very easily increases the defective rate of PCB board, has leaded to the promotion of material cost.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a lamp bead arrangement structure for LED display, aiming at solving the technical problem that the material cost is too high when an LED display screen is designed and produced in the prior art.

In order to solve the above problem, an embodiment of the present invention provides a lamp bead arrangement structure for LED display, including:

the PCB is provided with a plurality of through holes;

the LED lamp beads are arranged on the PCB;

the LED lamp beads are distributed on the PCB in a delta shape, and the non-common-pole ends of the LED lamp beads are separately and electrically connected with corresponding components; two in the article font is arranged the homopolar terminal of LED lamp pearl is in the top layer electric connection of PCB board, and pass through the via hole with all the other in the article font is arranged LED lamp pearl's homopolar terminal electric connection.

Further, a lamp pearl arrangement structure for LED shows in, a plurality of LED lamp pearl constitutes a plurality of light emitting pixel unit, light emitting pixel unit is in for article font on the PCB board.

Furthermore, in the lamp bead arrangement structure for LED display, a plurality of the light emitting pixel units are arranged in an array on the PCB.

Further, the lamp bead arrangement structure for LED display comprises a first LED lamp bead, a second LED lamp bead and a third LED lamp bead, wherein the first LED lamp bead, the second LED lamp bead and the third LED lamp bead form one light-emitting pixel unit.

Further, a lamp pearl arrangement structure for LED shows in, the via hole includes first via hole and second via hole, the common extreme of first LED lamp pearl loops through first via hole second via hole electric connection the common extreme of third LED lamp pearl, the common extreme of second LED lamp pearl the common extreme of third LED lamp pearl is in the top layer electric connection of PCB board.

Further, a lamp pearl arrangement structure for LED shows in, the homopolar end of first LED lamp pearl is located the extreme right side is altogether to the non-of first LED lamp pearl, the homopolar end of second LED lamp pearl is located the extreme right side is altogether to the non-of second LED lamp pearl, the homopolar end of third LED lamp pearl is located the extreme left side is altogether to the non-of third LED lamp pearl.

Furthermore, in the lamp bead arrangement structure for LED display, the arrangement manner of the LED lamp beads in each of the light emitting pixel units is the same, and the number of the LED lamp beads in each of the light emitting pixel units is the same.

Furthermore, in the lamp bead arrangement structure for LED display, the light emitting pixel units are in the shape of a genuine product or an inverted product on the PCB.

Further, in the lamp bead arrangement structure for LED display, the LED lamp beads are any one of red LED lamp beads, green LED lamp beads, and blue LED lamp beads.

Further, in the lamp bead arrangement structure for LED display, a plurality of via holes are arranged in an array on the PCB.

Compared with the prior art, the embodiment of the invention provides a lamp bead arrangement structure for LED display, three LED lamp beads are arranged on a PCB in a delta shape, only the non-common-electrode ends of the LED lamp beads are required to be electrically connected with corresponding components on the surface layer of the PCB independently, and the common-electrode ends of the two LED lamp beads arranged in the delta shape are electrically connected with the common-electrode ends of the other LED lamp beads through via holes after being electrically connected with the surface layer of the PCB, so that the number of open holes in the PCB can be reduced, the area of the PCB is not required to be increased, and the manufacturing cost of an LED display screen is reduced while the yield of the PCB is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a simple schematic diagram of a lamp bead arrangement structure for LED display provided in an embodiment of the present invention;

fig. 2 is a simple schematic diagram of a lamp bead arrangement structure for LED display provided in an embodiment in the prior art;

fig. 3 is another simple schematic diagram of a lamp bead arrangement structure for LED display provided in an embodiment of the prior art.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the present application, the term "some embodiments" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as exemplary is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes are not shown in detail to avoid obscuring the description of the invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles disclosed herein.

Referring to fig. 1, fig. 1 is a simple schematic view of a lamp bead arrangement structure for LED display according to an embodiment of the present invention. As shown in fig. 1, a lamp bead arrangement structure for LED display, it includes:

the PCB board 10 is provided with a plurality of through holes;

the LED lamp beads are arranged on the PCB 10;

the at least three LED lamp beads are arranged on the PCB 10 in a delta shape, and the non-common-pole ends of the LED lamp beads are separately and electrically connected with corresponding components; two in the article font is arranged the common electrode end of LED lamp pearl is in the top layer electric connection of PCB board 10, and pass through the via hole with all the other in the article font is arranged the common electrode end electric connection of LED lamp pearl.

The lamp bead arrangement structure for LED display provided by the embodiment of the invention can be applied to a COB display module and a single LED display module, namely the LED lamp beads are directly packaged on the PCB 10. According to the LED display screen, the three LED lamp beads are arranged on the PCB 10 in the shape of the Chinese character 'pin', only the non-common electrode ends of the LED lamp beads are required to be electrically connected with corresponding components on the surface layer of the PCB 10 independently, and the common electrode ends of the two LED lamp beads in the shape of the Chinese character 'pin' are electrically connected with the common electrode ends of the rest LED lamp beads through the through holes after the common electrode ends of the two LED lamp beads in the shape of the Chinese character 'pin' are electrically connected on the surface layer of the PCB 10, so that the number of openings on the PCB 10 can be reduced, the area of the PCB 10 does not need to be increased, the yield of the PCB 10 is improved, and meanwhile, the manufacturing cost of the LED display screen is reduced.

Specifically, at least LED lamp pearl forms the article font and arranges the back on PCB board 10, need not to be equipped with a via hole alone for every LED lamp pearl, carry out electric connection with the common extreme of every LED lamp pearl at the inlayer or the bottom of PCB board 10, the common extreme that exists between a set of two LED lamp pearls in article font is arranged can walk the line on PCB board 10 top layer in order to realize electric connection, and can not cause the influence to all the other LED lamp pearls on PCB board 10, common extreme between two LED lamp pearls can walk the line on PCB board 10 top layer in order to realize electric connection, only need to share an individual via hole and carry out electric connection at the inlayer or the bottom of PCB board 10 and all the other LED lamp pearls, thereby showing reduction the trompil quantity on PCB board 10, also need not to increase the area of PCB board 10, when promoting PCB board 10's yields, very big reduction the manufacturing cost of LED display screen.

It can be understood that LED lamp pearl direct package is on PCB board 10, and PCB board 10 is last to have arranged three LED lamp pearl at least. Wherein, it arranges to have three LED lamp pearl to be the article font on PCB board 10 at least, and this article font both can be for just article font, also can be for falling article font, still can be for arranging of article font arbitrary angle, and its specific article font can be selected according to actual conditions, does not do not specifically limit in this embodiment.

It can also be understood that when arranging more than three LED lamp pearls on PCB board 10, there can be the multiunit LED lamp pearl that the article font was arranged, there is at least three LED lamp pearl in every group, can be three LED lamp pearl in every group and be the article font and arrange on PCB board 10, can be four LED lamp pearls and be the article font and arrange on PCB board 10, can also be five LED lamp pearls and be the article font and arrange its specific article font and can select according to actual conditions on PCB board 10, do not specifically limit in this embodiment.

In addition, the common electrode end of the LED lamp bead may be a common anode end of the LED, or a common cathode end of the LED, which may be selected according to actual situations, and is not specifically limited in this embodiment.

In some embodiments, the LED beads form a plurality of light-emitting pixel units 20, and the light-emitting pixel units 20 are in a delta shape on the PCB 10. Generally, one light-emitting pixel unit 20 is composed of a plurality of LED lamp beads, and the LED lamp beads may be any one of red LED lamp beads, green LED lamp beads, and blue LED lamp beads. The light-emitting pixel unit 20 may be composed of a plurality of LED beads of the same color, or a plurality of LED beads of different colors, and the combination manner of the LED beads in one light-emitting pixel unit 20 may be selected according to actual conditions, which is not specifically limited in this embodiment.

In some embodiments, as shown in fig. 1, a plurality of the light-emitting pixel units 20 are arranged in an array on the PCB 10, the LED lamp beads include a first LED lamp bead 201, a second LED lamp bead 202, and a third LED lamp bead 203, and the first LED lamp bead 201, the second LED lamp bead 202, and the third LED lamp bead 203 form one light-emitting pixel unit 20; the arrangement modes of the LED lamp beads in each light-emitting pixel unit 20 are the same, and the number of the LED lamp beads in each light-emitting pixel unit 20 is the same.

In this embodiment, the first LED lamp bead 201 may be a red LED lamp bead, the second LED lamp bead 202 may be a green LED lamp bead, and the third LED lamp bead 203 may be a blue LED lamp bead, that is, the first LED lamp bead 201, the second LED lamp bead 202, and the third LED lamp bead 203 constitute one light emitting pixel unit 20.

In the embodiment shown in fig. 1, the via holes include a first via hole 101 and a second via hole 102, a common terminal of the first LED lamp bead 201 is electrically connected to a common terminal of the third LED lamp bead 203 sequentially through the first via hole 101 and the second via hole 102, and a common terminal of the second LED lamp bead 202 and a common terminal of the third LED lamp bead 203 are electrically connected to a surface layer of the PCB board 10; the common pole of the first LED lamp bead 201 may be located on the right side of the non-common pole of the first LED lamp bead 201, the common pole of the second LED lamp bead 202 may be located on the right side of the non-common pole of the second LED lamp bead 202, and the common pole of the third LED lamp bead 203 may be located on the left side of the non-common pole of the third LED lamp bead 203.

It should be noted that the left side and the right side in this embodiment only describe the position relationship of the first LED lamp bead 201, the second LED lamp bead 202, and the third LED lamp bead 203 shown in fig. 1, in an actual application process, the common-pole ends of the first LED lamp bead 201, the second LED lamp bead 202, and the third LED lamp bead 203 may be located on the other side of the respective non-common-pole end, or may be located at the upper end or the lower end of the respective non-common-pole end, which may be selected according to an actual situation, and this embodiment is not limited specifically.

In addition, when the resolution ratio of the lamp bead arrangement structure for LED display provided by the embodiment of the present application is 192 (columns) × 108 (rows), the pitch of the LED lamp beads is set to 1.25mm, the size of the display unit is 240 × 135mm, and then the number of the via holes on the PCB board 10 is: 192 × 108 × 2 is 41482.

In another embodiment, the light emitting pixel unit 20 may be in a shape of a regular triangle or an inverted triangle on the PCB board 10; the plurality of via holes may be arranged in an array on the PCB board 10. The light-emitting pixel units 20 may also be arranged on the PCB 10 in a delta shape at any angle, and the specific delta shape may be selected according to actual situations, which is not limited in this embodiment.

Referring to fig. 2, fig. 2 is a simple schematic diagram of a lamp bead arrangement structure for LED display according to an embodiment of the prior art. As shown in fig. 2, a light emitting pixel unit 20 is composed of a first LED lamp bead 201, a second LED lamp bead 202 and a third LED lamp bead 203, the light emitting pixel unit 20 is arranged on the PCB 10 in a rectangular shape, the common-pole ends of the first LED lamp bead 201, the second LED lamp bead 202 and the third LED lamp bead 203 are all located on the right side, and the non-common-pole ends are all located on the left side. The common-pole ends of the first LED lamp bead 201, the second LED lamp bead 202 and the third LED lamp bead 203 need to be wired on the surface layer of the PCB 10, so as to realize electrical connection of the common-pole ends; the non-common extreme of the first LED lamp bead 201, the second LED lamp bead 202 and the third LED lamp bead 203 is electrically connected to the corresponding component at the inner layer or the bottom layer of the PCB 10 through a via hole.

Specifically, when the resolution is 192 (columns) × 108 (rows) by using the bead arrangement structure for LED display provided in fig. 2, the distance between the LED beads is set to be 1.25mm, the size of the display unit is 240 × 135mm, and then the number of the via holes on the PCB board 10 is: 192 × 108 × 3 is 62208 pieces. Therefore, the LED lamp bead arrangement in the figure 2 is different from the LED lamp bead arrangement in the application in that each light-emitting pixel unit 20 on the PCB board 10 in the figure 2 needs to be additionally provided with a via hole, so that the manufacturing difficulty of the PCB board 10 is directly increased, the reject ratio of the PCB board 10 is indirectly increased, and the material cost is further increased.

Referring to fig. 3, fig. 3 is another simple schematic diagram of a lamp bead arrangement structure for LED display according to an embodiment of the prior art. As shown in fig. 3, a light emitting pixel unit 20 is composed of a first LED lamp bead 201, a second LED lamp bead 202 and a third LED lamp bead 203, the light emitting pixel unit 20 is arranged on the PCB 10 in a rectangular shape, the common-pole ends of the first LED lamp bead 201, the second LED lamp bead 202 and the third LED lamp bead 203 are all on the left side, and the non-common-pole ends are all on the right side. After the common-pole ends of the first LED lamp bead 201, the second LED lamp bead 202 and the third LED lamp bead 203 are wired on the surface layer of the PCB 10 to realize electrical connection, the common-pole ends are electrically connected to the inner layer or the bottom layer of the PCB 10 through a via hole; the non-common ends of the first LED lamp bead 201, the second LED lamp bead 202 and the third LED lamp bead 203 are wired on the surface layer of the PCB board 10 to realize electrical connection.

Specifically, when the resolution is 192 (columns) × 108 (rows) by using the bead arrangement structure for LED display provided in fig. 3, the distance between the LED beads is set to 1.25mm, the size of the display unit is 240 × 135mm, and then the number of the via holes on the PCB board 10 is: 192 × 108 × 1 is 20736 pieces. Therefore, although the number of the required holes of the PCB 10 in fig. 3 is less than that of the holes of the PCB 10 in the present application, the non-common-pole end of the second LED lamp bead 202 needs to penetrate between the positive and negative poles of the third LED lamp bead 203 to be electrically connected with the non-common-pole ends of other LED lamp beads, at this time, the width of the third LED lamp bead 203 needs to be increased to realize the purpose, and the increase of the width of the third LED lamp bead 203 necessarily leads to the increase of the size of the LED chip, thereby indirectly increasing the area of the PCB 10, and further increasing the material cost.

In a specific implementation, each unit or structure may be implemented as an independent entity, or may be combined arbitrarily to be implemented as one or several entities, and the specific implementation of each unit or structure may refer to the foregoing method embodiment, which is not described herein again.

The lamp bead arrangement structure for LED display provided by the embodiment of the present invention is described in detail above, and the principle and the embodiment of the present invention are explained herein by applying specific embodiments, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. The utility model provides a lamp pearl structure of arranging for LED shows which characterized in that includes:

the PCB is provided with a plurality of through holes;

the LED lamp beads are arranged on the PCB;

2. The lamp bead arrangement structure for the LED display as claimed in claim 1, wherein the plurality of LED lamp beads form a plurality of light emitting pixel units, and the light emitting pixel units are in a delta shape on the PCB.

3. A bead arrangement for an LED display according to claim 2, wherein a plurality of said light emitting pixel units are arranged in an array on said PCB.

4. The lamp bead arrangement structure for the LED display of claim 2, wherein the LED lamp beads include a first LED lamp bead, a second LED lamp bead and a third LED lamp bead, and the first LED lamp bead, the second LED lamp bead and the third LED lamp bead form one light emitting pixel unit.

5. The lamp bead arrangement structure for the LED display according to claim 4, wherein the via holes include a first via hole and a second via hole, the common pole end of the first LED lamp bead is electrically connected with the common pole end of the third LED lamp bead sequentially through the first via hole and the second via hole, and the common pole end of the second LED lamp bead and the common pole end of the third LED lamp bead are electrically connected with each other on the surface layer of the PCB.

6. The lamp bead arrangement structure for the LED display of claim 4, wherein the common pole end of the first LED lamp bead is located on the right side of the non-common pole end of the first LED lamp bead, the common pole end of the second LED lamp bead is located on the right side of the non-common pole end of the second LED lamp bead, and the common pole end of the third LED lamp bead is located on the left side of the non-common pole end of the third LED lamp bead.

7. The lamp bead arrangement structure for LED display of claim 2, wherein the arrangement of the LED lamp beads in each of the light emitting pixel units is the same, and the number of the LED lamp beads in each of the light emitting pixel units is the same.

8. A bead arrangement for an LED display according to claim 2, wherein the light-emitting pixel units are in a shape of a genuine product or an inverted product on the PCB.

9. The lamp bead arrangement structure for the LED display of claim 1, wherein the LED lamp beads are any one of red LED lamp beads, green LED lamp beads and blue LED lamp beads.

10. A bead arrangement for an LED display according to claim 1, wherein a plurality of said vias are arranged in an array on said PCB.