CN219842784U - LED lamp panel, LED display module and LED display device - Google Patents

Abstract

The utility model provides an LED lamp panel, an LED display module and an LED display device, wherein the LED lamp panel comprises: the LED lamp panel comprises a lamp panel substrate, wherein the front surface of the lamp panel substrate is provided with a plurality of bonding pad groups, a plurality of lead groups and a dummy line group, the bonding pad groups are arranged on the lamp panel substrate in an array mode, the bonding pad groups are arranged along a first direction in a disconnected mode, each bonding pad group comprises a plurality of bonding pad units arranged along the first direction, the bonding pad units in each bonding pad group are conducted through one lead group, and the dummy line group is arranged between two adjacent bonding pad groups along the first direction and is disconnected with at least one bonding pad group; the lamp beads are welded and connected to the lamp panel base body through the welding pad units. The technical scheme of the utility model can effectively solve the problems of high cost and difficult process of the mode of controlling the LED surface color difference in the related technology.

Description

LED lamp panel, LED display module and LED display device

Technical Field

The utility model relates to the technical field of LED display, in particular to an LED lamp panel, an LED display module and an LED display device.

Background

As shown in fig. 1, in the related art, a plurality of pad groups are disposed on a lamp panel substrate 1, the pad groups are conducted through a wire group 3, and due to the design of a scanning circuit, lamp beads on different pad groups respectively receive different control signals to achieve corresponding display effects, and the pad groups receiving the different control signals are not connected through the wire group 3, so that gaps are generated between the pad groups, and the gaps cause LED surface color differences to be visually generated.

In the related art, control of the LED face difference is generally achieved by selecting the type of ink and controlling the tolerance accuracy of the thickness of the ink.

If the color difference of the LED surface is controlled by selecting the ink, the price of the better ink is higher, and the cost of the ink is correspondingly increased to the product due to the use of the better ink, so that the overall production cost is greatly increased. If the LED surface color difference is controlled by adopting a mode of controlling the tolerance precision of the thickness of the ink, the more advanced the control precision is, the more advanced the required processing equipment is required, the more strict the process flow is, so that the process difficulty is increased, and the production cost is correspondingly increased.

The problem to be solved in the field is to find a way for controlling the chromatic aberration of the LED surface, which is lower in cost and simpler in process.

Disclosure of Invention

The utility model mainly aims to provide an LED lamp panel, an LED display module and an LED display device, so as to solve the problems of high cost and difficult process of a mode of controlling LED surface color difference in the related technology.

In order to achieve the above object, according to one aspect of the present utility model, there is provided an LED lamp panel comprising: the LED lamp panel comprises a lamp panel substrate, wherein the front surface of the lamp panel substrate is provided with a plurality of bonding pad groups, a plurality of lead groups and a dummy line group, the bonding pad groups are arranged on the lamp panel substrate in an array mode, the bonding pad groups are arranged along a first direction in a disconnected mode, each bonding pad group comprises a plurality of bonding pad units arranged along the first direction, the bonding pad units in each bonding pad group are conducted through one lead group, and the dummy line group is arranged between two adjacent bonding pad groups along the first direction and is disconnected with at least one bonding pad group; the lamp beads are welded and connected to the lamp panel base body through a plurality of welding disc units, wherein at least one lamp bead is welded and connected to each welding disc unit; the first wires are arranged at intervals along the second direction, the second wires are arranged at intervals along the second direction, the number m of the second wires in the false wire set is the same as the number n of the first wires in the wire set, the second direction is perpendicular to the first direction, and m and n are positive integers.

Further, the extending trend of the second wires is the same as that of the corresponding partial structures of the first wires, and the second wires and the corresponding partial structures of the corresponding first wires are uniformly distributed in the first direction.

Further, the dummy line group is disposed between and disconnected from two adjacent pad groups in the first direction.

Further, the pad unit includes a plurality of pad bodies, and each of the second wires spans at least one of the pad bodies in the first direction.

Further, the pad group includes a plurality of pad bodies, and a distance between an end of each second wire and an adjacent pad body is 0.0762mm or more; and/or, each first wire in the wire set comprises a plurality of first wire segments, and the first wire segments form a first bending structure.

Further, each second wire in the dummy wire set includes a plurality of second wire segments, and the plurality of second wire segments form a second bent structure.

Further, the length of each second wire segment is greater than or equal to 0.635mm.

Further, at least one end of each second wire extends into the gap between two adjacent pad groups.

According to another aspect of the utility model, an LED display module is provided, which comprises a bracket and an LED lamp panel arranged on the front side of the bracket, wherein the LED lamp panel is the LED lamp panel.

According to another aspect of the present utility model, there is provided an LED display device including a plurality of LED display modules arranged in an array, where the LED display modules are the LED display modules described above.

By applying the technical scheme of the utility model, the front surface of the lamp panel substrate is provided with a plurality of bonding pad groups to form the working foundation of the LED lamp panel; the plurality of pad groups are non-conductive in the first direction, and each of the pad groups includes a plurality of pad cells arranged at intervals in the first direction. Wherein, a plurality of bonding pad units in each bonding pad group are conducted through one wire group so as to achieve the effect of transmitting signals to each bonding pad unit under the action of the wire group. A dummy line group is provided between two adjacent pad groups in the first direction, the dummy line group is disconnected from at least one pad group, and the two adjacent pad groups in the first direction are not turned on by the dummy line group. And a plurality of lamp beads are welded on the plurality of pad units, at least one lamp bead is welded on each pad unit, and the lamp beads receive different signals through the pad units and the lead groups between the conductive pad units, so that corresponding reactions are made. The wire group includes a plurality of first wires that set up along the second direction interval, and the false wire group includes a plurality of second wires that set up along the second direction interval, and wherein, the quantity of second wire is the same with the quantity of first wire in the wire group in the false wire group, and a plurality of first wires that have the switching on function play the effect of transmitting the signal between a plurality of pad units, and a plurality of second wires that are the same with first wire quantity are under the condition that does not influence the switching on function of first wire with first wire assorted to reach visual uniformity. The dummy wire group matched with the wire group is adopted, on one hand, the normal conduction function of the wire group is not affected by the dummy wire group, and on the other hand, the dummy wire group is kept consistent with the wire group in vision, so that the gap between adjacent bonding pad groups is filled, and the process and the method for setting the dummy wire group are the same as those for setting the wire group, and the method has the advantages of low cost and simple process. Therefore, the technical scheme of the utility model can effectively solve the problems of high cost and difficult process of the mode of controlling the LED surface color difference in the related technology.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the front surface of an LED lamp panel in the related art;

FIG. 2 shows a schematic layout of the front face of a first embodiment of an LED lamp panel according to the present utility model;

FIG. 3 is a schematic diagram of a front wiring of a second embodiment of an LED lamp panel according to the present utility model;

fig. 4 shows a schematic layout of the front surface of a third embodiment of an LED lamp panel according to the present utility model.

Wherein the above figures include the following reference numerals:

in the related art:

1. a lamp panel base; 3. a wire set.

In the present utility model:

10. a lamp panel base; 20. a pad group; 21. a pad unit; 211. a pad body; 30. a wire set; 31. a first wire; 40. a dummy line group; 41. and a second wire.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 2 to 4, the present utility model provides an LED lamp panel, and an embodiment of the LED lamp panel of the present utility model includes: a lamp panel base 10, a plurality of lead wire groups 30, a dummy wire group 40, a plurality of lamp beads; wherein, the front surface of the lamp panel base body 10 is provided with a plurality of bonding pad groups 20, the plurality of bonding pad groups 20 are arranged on the lamp panel base body 10 in an array manner, the bonding pad groups 20 arranged along the first direction are disconnected, each bonding pad group 20 comprises a plurality of bonding pad units 21 arranged along the first direction, the plurality of bonding pad units 21 in each bonding pad group 20 are conducted through one wire group 30, and the dummy wire group 40 is arranged between two adjacent bonding pad groups 20 along the first direction and disconnected from at least one bonding pad group 20; the plurality of lamp beads are welded and connected to the lamp panel base body 10 through the plurality of welding disc units 21, wherein at least one lamp bead is welded and connected to each welding disc unit 21; the wire set 30 includes a plurality of first wires 31 arranged at intervals along a second direction, the dummy wire set 40 includes a plurality of second wires 41 arranged at intervals along the second direction, wherein the number m of the second wires 41 in the dummy wire set 40 is the same as the number n of the first wires 31 in the wire set 30, the second direction is perpendicular to the first direction, and m and n are positive integers.

By applying the technical scheme of the embodiment, the front surface of the lamp panel substrate 10 is provided with a plurality of bonding pad groups 20 to form a working foundation of the LED lamp panel; the plurality of pad groups 20 are non-conductive in the first direction, and each pad group 20 includes a plurality of pad units 21 arranged at intervals in the first direction. Wherein, a plurality of pad units 21 in each pad group 20 are conducted through one wire group 30 to achieve the effect of transmitting signals to the respective pad units 21 under the effect of the wire group 30. The dummy line group 40 is provided between two adjacent land groups 20 in the first direction, and the dummy line group 40 is disconnected from at least one land group 20, and the provision of the dummy line group 40 disconnected from at least one land group 20 serves as a function that the dummy line group 40 does not conduct the two adjacent land groups 20 in the first direction. A plurality of lamp beads are welded on the plurality of pad units 21, at least one lamp bead is welded on each pad unit 21, and the lamp beads receive different signals through the pad units 21 and the lead wire groups 30 between the conductive pad units 21, so that corresponding reactions are made. The wire set 30 includes a plurality of first wires 31 arranged at intervals along the second direction, the dummy wire set 40 includes a plurality of second wires 41 arranged at intervals along the second direction, wherein the number of the second wires 41 in the dummy wire set 40 is the same as the number of the first wires 31 in the wire set 30, the plurality of first wires 31 having a conducting function play a role of transmitting signals between the plurality of pad units 21, the plurality of second wires 41 having the same number as the first wires 31 are matched with the first wires 31 without affecting the conducting function of the first wires 31, and thus visual consistency is achieved.

In this embodiment, the dummy wire set 40 matched with the wire set 30 is adopted, on one hand, the dummy wire set 40 does not affect the normal conducting function of the wire set 30, on the other hand, the dummy wire set 40 is kept consistent with the wire set 30 in vision, so that the gap between the adjacent bonding pad sets 20 is filled, and the process and method for setting the dummy wire set 40 are the same as the process and method for setting the wire set 30, and the method has the advantages of low cost and simple process. Therefore, the technical scheme of the embodiment can effectively solve the problems of high cost and difficult process of the mode of controlling the LED surface color difference in the related technology.

The "dummy wire group 40" described above refers to a wire that is formed by a process and method consistent with the processing of the wire group 30, but does not perform a conduction function between two pad groups 20 adjacent in the first direction.

As shown in fig. 2 to 4, the extending trend of the second conductive lines 41 is the same as that of the corresponding partial structure of the first conductive line 31, and the second conductive lines 41 and the corresponding partial structure of the first conductive line 31 are uniformly distributed in the first direction. This arrangement further improves the visual consistency of the pseudowire set 40 with the lead set 30.

It should be noted that the above-mentioned "the same extending trend" means that each second wire segment (described in detail later) of the second wire 41 is the same as the extending direction of the first wire segment (described in detail later) in the partial structure of the corresponding first wire 31, for example, as shown in fig. 2 (specifically, the length direction of the LED lamp panel is taken as the up-down direction, the width direction of the LED lamp panel is taken as the left-right direction), the rightmost second wire 41 in the pseudo wire group 40 is composed of three second wire segments from bottom right to top left, bottom to top and bottom left to top right, and the corresponding partial structure of the rightmost first wire 31 in the wire group 30 is also composed of three first wire segments from bottom right to top left, bottom to top and bottom left to top right; the above-mentioned "uniformly distributed in the first direction" means that the second wires 41 are disposed at equal intervals in the first direction from the corresponding partial structures of the corresponding first wires 31, for example, as shown in fig. 2, in the dummy wire group 40, the spacing distance between the rightmost second wires 41 and the corresponding partial structures of the rightmost first wires 31 in the upper and lower two wire groups 30 is the same in the upper and lower directions (i.e., the first direction).

As shown in fig. 2 to 4, the dummy line group 40 is disposed between two pad groups 20 adjacent in the first direction and is disposed apart from both of the pad groups 20. By disconnecting the dummy line group 40 from both of the two land groups 20 adjacent in the first direction, the influence of EMC signal radiation can be further reduced and the display effect is not influenced on the basis of reducing the influence of EMC signal radiation, compared with the arrangement in which only one end is disconnected from both of the two land groups 20 adjacent in the first direction.

As shown in fig. 2 to 4, the pad unit 21 includes a plurality of pad bodies 211, and each second wire 41 spans at least one pad body 211 in the first direction. The second wires 41 are arranged across at least one bonding pad body 211 in the first direction, so that each second wire 41 has a certain length in the first direction, gaps among the bonding pad groups 20 are filled, visual consistency of the front faces of the LED lamp panels is guaranteed, and the purpose of controlling LED face color difference is achieved.

As shown in fig. 2 to 4, the pad group 20 includes a plurality of pad bodies 211, and a distance between an end of each second wire 41 and an adjacent pad body 211 is 0.0762mm or more. By providing the distance between the end of the second wire 41 and the adjacent pad body 211 to be 0.0762mm or more, the process difficulty is reduced, so that the dummy wire group 40 is easier to be processed, and the processing cost is further reduced.

As shown in fig. 2 to 4, each first wire 31 in the wire set 30 includes a plurality of first wire segments forming a first bent structure. By forming the first bending structure by providing a plurality of first wire segments, the gaps between the pad bodies 211 can be fully and reasonably utilized to realize the function of conducting the corresponding pad bodies 211.

As shown in fig. 2 to 4, at least one second wire 41 in the dummy wire set 40 includes a plurality of second wire segments disposed in a bent manner. In order to match with the first bending structure formed by the plurality of first wire segments, the plurality of second wire segments are bent, so that the trend of the fake wire group 40 and the trend of the wire group 30 are the same, the visual consistency of the fake wire group 40 and the wire group 30 are further improved, and the purpose of controlling the LED surface color difference is achieved.

As shown in fig. 2 to 4, the length of each second wire segment is 0.635mm or more. Through the limitation to the length of the second wire segment, the second wire segment is prevented from falling off from the lamp panel base body 10, and particularly, the second wire segment at the end part can be prevented from falling off, so that the second wire segment is better fastened on the lamp panel base body 10, the stability of the fake wire group 40 on the lamp panel base body 10 is improved, and the purpose of controlling the LED surface color difference is better realized.

As shown in fig. 2 to 4, at least one end of each second wire 41 extends into the gap between the adjacent two land groups 20. By extending at least one end of the second wire 41 into the gap between two adjacent bonding pad groups 20, the gap between two adjacent bonding pad groups 20 is further filled, and the effect of the dummy wire group 40 on controlling the LED surface color difference on the lamp panel substrate 10 is further improved.

The utility model also provides an LED display module, which comprises: the LED lamp panel comprises a bracket and an LED lamp panel arranged on the front side of the bracket, wherein the LED lamp panel is the LED lamp panel. The LED lamp panel can effectively solve the problems of high cost and difficult process of a mode for controlling the color difference of the LED surface in the related technology, and the LED display module with the LED lamp panel also has the advantages.

The utility model also provides an LED display device, which comprises: the LED display modules are arranged in an array mode, wherein the LED display modules are the LED display modules. The LED display module can effectively solve the problems of high cost and difficult process of a mode for controlling the LED surface color difference in the related technology, and the LED display device with the LED display module also has the advantages.

Three specific embodiments of the present utility model are described below in conjunction with fig. 2-4:

fig. 2 shows a schematic front routing view of a first embodiment of an LED lamp panel according to the present utility model, wherein each pad unit 21 includes four pad bodies 211 arranged in a 2×2 array, one pad unit 21 has one bead (each bead includes three light emitting chips: R chip, G chip and B chip, respectively) soldered thereon, the wire group includes three first wires 31, two first wires 31 are disposed inside the pad group 20, one first wire 31 is disposed between adjacent pad groups 20 disposed along the second direction, the dummy wire group 40 includes three second wires 41, and the disposition positions of the three second wires 41 and the disposition positions of the three first wires 31 are in the same gap along the first direction.

Fig. 3 shows a schematic front wiring diagram of a second embodiment of the LED lamp panel according to the present utility model, wherein each pad unit 21 includes four pad bodies 211 arranged in a 2×2 array, one bead (each bead includes three light emitting chips: R chip, G chip and B chip, respectively) is soldered to one pad body 211, one end of the three light emitting chips is soldered to one pad body 211, the other end of the three light emitting chips is soldered to the remaining one pad body 211, the wire group includes three first wires 31, the three first wires 31 are disposed between adjacent pad groups 20 disposed along the second direction, the dummy wire group includes three second wires 41, and the disposition positions of the three second wires 41 and the disposition positions of the three first wires 31 are in the same gap along the first direction.

Fig. 4 shows a schematic front wiring diagram of a third embodiment of an LED lamp panel according to the present utility model, wherein each pad unit 21 includes eight pad bodies 211 arranged in a first row of three, a second row of two, and a third row of three, four lamp beads (each lamp bead includes three light emitting chips: R chip, G chip, and B chip, respectively) are soldered on one pad unit 21, a wire group includes four first wires 31, two of the first wires 31 are disposed inside the pad group 20, two of the first wires 31 are disposed between adjacent pad groups 20 disposed along a second direction, and a dummy wire group includes four second wires 41, and the disposition positions of the four second wires 41 and the disposition positions of the four first wires 31 are in the same gap along the first direction.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. An LED lamp panel, comprising:

a lamp panel base body (10), wherein a plurality of bonding pad groups (20), a plurality of wire groups (30) and a dummy wire group (40) are arranged on the front surface of the lamp panel base body (10), a plurality of bonding pad groups (20) are arranged on the lamp panel base body (10) in an array mode, the bonding pad groups (20) arranged along a first direction are arranged in a disconnected mode, each bonding pad group (20) comprises a plurality of bonding pad units (21) arranged along the first direction, the bonding pad units (21) in each bonding pad group (20) are conducted through one wire group (30), and the dummy wire group (40) is arranged between two adjacent bonding pad groups (20) along the first direction and is arranged in a disconnected mode with at least one bonding pad group (20);

the lamp beads are welded and connected to the lamp panel base body (10) through a plurality of welding disc units (21), and at least one lamp bead is welded and connected to each welding disc unit (21);

wherein the wire set (30) comprises a plurality of first wires (31) arranged at intervals along a second direction, the dummy wire set (40) comprises a plurality of second wires (41) arranged at intervals along the second direction, wherein the number m of the second wires (41) in the dummy wire set (40) is the same as the number n of the first wires (31) in the wire set (30), the second direction is perpendicular to the first direction, and the m and the n are positive integers.

2. The LED lamp panel according to claim 1, wherein the extending trend of the second wires (41) is the same as the extending trend of the corresponding partial structure of the first wires (31), the second wires (41) being evenly distributed with the corresponding partial structure of the first wires (31) in the first direction.

3. The LED lamp panel according to claim 1, wherein the dummy wire group (40) is disposed between two of the land groups (20) adjacent in the first direction and is disposed apart from both of the land groups (20).

4. A LED lamp panel according to claim 3, characterized in that the pad unit (21) comprises a plurality of pad bodies (211), each of the second wires (41) crossing at least one of the pad bodies (211) in the first direction.

5. The LED lamp panel according to claim 3, wherein,

the pad group (20) comprises a plurality of pad bodies (211), and the distance between the end part of each second wire (41) and the adjacent pad body (211) is more than or equal to 0.0762mm; and/or the number of the groups of groups,

each first wire (31) in the wire set (30) comprises a plurality of first wire segments forming a first bent structure.

6. The LED lamp panel according to claim 1, wherein each of the second wires (41) in the dummy wire set (40) comprises a plurality of second wire segments forming a second bent structure.

7. The LED light board of claim 6 wherein each of the second wire segments has a length of 0.635mm or greater.

8. The LED lamp panel according to any of the claims 2 to 7, wherein at least one end of each second wire (41) protrudes into a gap between two adjacent sets of pads (20).

9. An LED display module, comprising a bracket and an LED lamp panel arranged on the front side of the bracket, wherein the LED lamp panel is the LED lamp panel according to any one of claims 1 to 8.

10. An LED display device comprising a plurality of LED display modules arranged in an array, wherein the LED display modules are the LED display modules according to claim 9.