CN111402752A

CN111402752A - L ED display module and L ED display screen

Info

Publication number: CN111402752A
Application number: CN202010415292.0A
Authority: CN
Inventors: 郝宗潮; 刘秋河; 胡日浩
Original assignee: Shenzhen Infiled Electronics Co Ltd
Current assignee: Shenzhen Infiled Electronics Co Ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2020-07-10

Abstract

The invention discloses an L ED display module and a L ED display screen, wherein the L ED display module comprises a flexible lamp panel and a module bottom shell, a plurality of L ED lamp beads are arranged on the front surface of the flexible lamp panel, and the module bottom shell is arranged on the back surface of the flexible lamp panel, wherein the module bottom shell is made of a glass fiber reinforced PC composite material, and a groove is formed in one side of the module bottom shell, which is back to the flexible lamp panel, and is used for enhancing the flexibility of the module bottom shell.

Description

L ED display module and L ED display screen

Technical Field

The invention relates to the technical field of L ED display, in particular to a L ED display module and a L ED display screen.

Background

With the continuous development of L ED technology, L ED display screens are gradually applied to various industries, in order to meet the curved surface display requirement of L ED display screens, a plurality of L ED display unit blocks are generally spliced and assembled into a curved surface L ED display screen through an arc-shaped support structure in the prior art.

However, the conventional L ED display unit blocks are generally arranged in a flat plate shape, and when the spliced display unit blocks are spliced, edges or edges can be formed at the turning positions of the adjacent L ED display unit blocks, particularly for the spliced display screen with a large bending radian, the edges or edges at the spliced positions are more obvious, so that the smoothness of the spliced positions of the two display unit blocks is poor, and the display effect of the L ED display screen is influenced.

Disclosure of Invention

The invention provides an L ED display module and a L ED display screen, and the module bottom case is made of a glass fiber reinforced PC composite material, so that the flexibility of the module bottom case can be enhanced, and the module bottom case can be bent conveniently.

According to a first aspect of the present invention, the present invention provides an L ED display module, including a flexible lamp panel and a module bottom case;

the front surface of the flexible lamp panel is provided with a plurality of L ED lamp beads, and the module bottom shell is arranged on the back surface of the flexible lamp panel;

wherein, the module drain pan adopts fine reinforcing PC combined material of glass to make, and it is back to one side of flexible lamp plate is equipped with the recess, is used for the reinforcing the pliability of module drain pan.

In the L ED display module of the invention, the number of the grooves is multiple, and the grooves are arranged at intervals along the bending direction of the module bottom shell, so that the L ED display module can be bent through the grooves and form an arc-shaped structure.

In the L ED display module, each groove is in an inverted V-shaped groove structure, and the bottom of each groove is provided with an arc transition section.

In the L ED display module of the invention, the minimum distance from the bottom of the groove to the other side of the module bottom case is equal to 1/10 of the thickness of the module bottom case.

In the L ED display module, the L ED lamp beads are arrayed along the bending direction of the module bottom shell and the bending direction vertical to the module bottom shell.

In the L ED display module of the invention, a plurality of rows of electronic devices are arranged on the back surface of the flexible lamp panel at intervals along the bending direction of the module bottom shell.

In the L ED display module, the flexible lamp panel adopts an FPC (flexible printed circuit) and the L ED lamp beads are attached to the flexible lamp panel.

In the L ED display module of the invention, a magnetic attraction piece is arranged on the module bottom shell, and the module bottom shell is connected to the frame of the L ED display screen through the magnetic attraction piece.

In the L ED display module of the invention, a plurality of connecting holes are further arranged on the module bottom shell, and the module bottom shell is fixed in the frame through the connecting holes.

According to a second aspect of the present invention, the present invention provides an L ED display screen, including a frame and the L ED display module described above, wherein a flexible lamp panel in the L ED display module is installed in the frame through the module bottom case.

The technical scheme that this application embodiment provided can include following beneficial effect, this application has designed this application embodiment and has provided an L ED display module and L ED display screen, because the module drain pan adopts fine reinforcing PC combined material of glass to make, not only can strengthen the tensile strength of module drain pan to the module drain pan can bend, make the concatenation department of two L ED display module groups more level and smooth, also can improve the compressive strength of L ED display module group 100 installation simultaneously.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

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

Fig. 1 is a schematic structural diagram of an L ED display module according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the L ED display module shown in FIG. 1;

FIG. 3 is a schematic structural diagram of the L ED display module shown in FIG. 1;

FIG. 4 is a schematic structural diagram of the L ED display module shown in FIG. 1;

FIG. 5 is a schematic structural diagram of the L ED display module shown in FIG. 1;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A;

FIG. 7 is a schematic structural diagram of the L ED display module shown in FIG. 1;

FIG. 8 is a schematic structural diagram of the L ED display module shown in FIG. 1;

fig. 9 is a schematic structural diagram of the L ED display module in fig. 1.

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", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

As shown in fig. 1 to 9, according to the first aspect of this application, the L ED display module 100 that this application provided, including flexible lamp plate 20 and module drain pan 10, wherein, flexible lamp plate 20 includes PCB substrate 22 and a plurality of L ED lamp pearl 21, a plurality of L ED lamp pearl 22 set up in PCB substrate 22's front, set up on module drain pan 10 on PCB substrate 22's the back.

Specifically, module drain pan 10 so adopt glass fiber reinforced PC combined material to make, because glass fiber reinforced PC material has both kept PC resin's impact toughness and heat resistance to a certain extent and has the good mechanical strength of glass fiber again for PC, the sensitivity of goods to stress has been reduced, PC's tensile strength has been improved, flexural modulus and bending strength etc. thereby make module drain pan 10 can cooperate flexible lamp plate 20 to make L ED display module 100's whole have certain flexibility, can be certain angle carry out the bending, for example the crooked radian angle range of this application L ED display module 100 is at 20 ~ 30 and so on.

In an optional embodiment, the PCB substrate 22 adopts an FPC flexible circuit board, wherein the L ED lamp beads 21 are attached to the PCB substrate 22, wherein the FPC flexible circuit board has the characteristics of good bending property, self-contained bonding pads and the like, and can realize a direct welding mode of the L ED lamp beads 21 and the PCB substrate 22, thereby saving parts of wires or terminals, reducing the cost, and changing two-time welding into one-time welding, greatly reducing the welding process, saving labor, improving the production efficiency, improving the connection reliability and the like.

After the technical scheme above adopting, because L ED display module assembly 100 is through designing into flexible construction with flexible lamp plate 20 and module drain pan 10 to can realize that L ED display module assembly 100 bends at will, including the inside complete and the outside bending towards L ED display module assembly 100 of orientation L ED display module assembly 100, make the concatenation department of two L ED display module assemblies more level and smooth, the pad on the PCB base plate 22 can not drop when also having guaranteed to bend simultaneously.

It should be noted that L ED lamp bead 21 can also be installed on PCB base plate 22 through tin cream subsides, and PCB base plate 22 can set up with module drain pan 10 integration, and PCB base plate 22 also can be assembled together with module drain pan 10 split type after-forming, and this application does not put the restriction.

The FPC flexible circuit board further has the advantages of being adjustable in length, thin in thickness, light in weight and the like, automatic production of the L ED display module 100 is facilitated, automatic welding of the L ED lamp beads 21 and the PCB substrate 22 is achieved, the module bottom shell 10 is arranged on the back face of the flexible lamp plate 20 firstly during production, then the module bottom shell 10 and the flexible lamp plate 20 are filled between the module bottom shell 10 and the flexible lamp plate 20 in an adhesive filling or pouring mode, the production method is simple, product quality is good, meanwhile, the module bottom shell 10 is arranged on the back face of the flexible lamp plate 20, the effects of water proofing, namely sealing and the like of the flexible lamp plate 20 can be achieved while structural strength of the PCB substrate 20 is improved, and the effect of killing two birds with one stone is achieved.

In addition, because module drain pan 10 is equipped with recess 13 in the one side that backs to flexible lamp plate 20, can also further be used for reinforcing module drain pan 10's pliability like this to module drain pan 10 can be crooked at certain angle.

In an optional implementation mode, the quantity of recess 13 is a plurality of, a plurality of recesses 13 set up along the crooked direction interval of module drain pan 10, so that L ED display module 100 can bend and form the arc structure through recess 13, thereby be convenient for splice into different radian shapes with a plurality of L ED display module 100, the excessive problem of circular arc after a plurality of L ED display module 100 splice has also been solved, make L ED display module 100 can change according to the shape along with the frame of L ED display screen, improve L ED display module 100 and the degree of agreeing with of frame.

After the technical scheme above is adopted, not only make L ED display module 100's structure simpler, do not need any connecting piece can realize L ED display module 100's bending moreover, for follow-up L ED display module 100's maintenance operation that facilitates, also be applicable to the concatenation of multiple camber curved screen simultaneously.

Specifically, the L ED display module 100 is bent to different radians by using the characteristics of the module bottom case 10 and the flexible lamp panel 20 according to the structural requirements of an L ED display screen, then the L ED display module 100 is installed in the frame of the L ED display screen, and when the L ED display module 100 is installed in the frame, the radian of the L ED display module 100 can be changed according to the frame, so that the L ED display module 100 can be matched with the frame, and the flexibility of the module bottom case 10 can be enhanced by arranging the plurality of grooves 13 in the module bottom case 10, the matching degree of the module bottom case 10 and the arc-shaped frame is improved, any connecting piece is not needed, and the smoothness of the connection parts of the plurality of L ED display modules 100 can be ensured.

In an optional embodiment, each groove 13 is an inverted V-shaped groove structure, wherein the bottom of the groove 13 is provided with an arc transition section 131, so as to avoid stress concentration generated when the L ED display module 100 is molded or bent, and effectively prolong the service life of the module bottom case 10.

In an alternative embodiment, the minimum distance from the bottom of the recess 13 to the other side of the module bottom case 10 is equal to 1/10 of the thickness of the module bottom case 10, for example, the distance from the bottom of the recess 13 to the joint of the module bottom case 10 and the flexible lamp panel 20 is 1mm, the thickness of the module bottom case 10 is 10mm, and the like, so that the flexibility of the module bottom case 10 can be further enhanced.

In an optional embodiment, L ED lamp beads 21 are distributed in an array, wherein L ED lamp beads 21 are arrayed along the bending direction of the module bottom case 10 and the bending direction perpendicular to the module bottom case 10. in the embodiment, L ED lamp beads 21 are distributed on the front surface of the whole PCB substrate 22, and the gaps between two adjacent L ED lamp beads 21 are equal, so that the module bottom case 10 cannot be bent due to the problem of L ED lamp beads 21 when being bent, or the L ED lamp beads 21 are damaged when the module bottom case 10 is bent, and the like.

In an alternative embodiment, a plurality of rows of electronic devices (not shown) are disposed at intervals on the back surface of the PCB substrate 22 along the bending direction of the module bottom case 10, so that the best bending effect can be achieved, and the influence of the electronic devices on the PCB substrate 22 is greatly reduced during the bending process. Meanwhile, pins of the electronic components can be arranged in the direction perpendicular to the bending direction of the PCB substrate 22, the pins of the electronic components are arranged on the bonding pads of the PCB substrate 22, the pins are arranged in the direction perpendicular to the bending direction of the PCB substrate 22, the bonding pads can not fall off during bending, and wiring design of a circuit board is facilitated.

Specifically, the electronic components may include an IC chip, a connector, a capacitor, a power socket, and the like, and the IC chip may include a signal amplification IC chip, a row scanning IC chip, and a column scanning IC chip, wherein the signal amplification IC chip is configured to receive and amplify signals transmitted by the connector, connect the connectors 211 on adjacent L ED modules through flat cables, transmit signals between L ED modules through connectors, and the like, which is not limited in this application.

In an optional embodiment, a plurality of boss structures may be further disposed on the module bottom chassis 10, wherein the plurality of boss structures are disposed on a side of the module bottom chassis 10 facing away from the flexible lamp panel 20 in a segmented manner, so that the L ED display module 100 can be bent along the boss structures to form an arc-shaped structure.

After the technical scheme above is adopted, L ED display module assembly 100 can bend along boss structure's length direction for L ED display module assembly 100 can be according to the different arc structures of frame book one-tenth, ensures L ED display module assembly 100 and frame construction's goodness of fit, and simple structure is but practical.

In an optional embodiment, the cross-sectional shape of each of the boss structures is an inverted trapezoid, wherein the width of the side of the boss structure close to the L ED lamp bead 21 is greater than the width of the side of the boss structure far from the L ED lamp bead 21, so as to improve the bending angle range of the L ED display module 100, for example, the present application may bend the arc or angle of the L ED display module 100 to 20 ° to 30 °.

In an alternative embodiment, the boss structure includes a first boss 11 and a second boss 12, the width of the second boss 12 is smaller than the width of the first boss 11, in this embodiment, the second boss 12 is disposed on both sides of the first boss 11, so that the flatness of the L ED display module 100 can be ensured, that is, the middle of the L ED display module 100 does not need to be bent, and both sides of the L ED display module 100 need to be bent during the splicing process to fit the frame structure.

In an alternative embodiment, the height of each boss is equal to 8-10 the thickness of the module bottom case 10, e.g., the height of the boss is 8mm and the thickness of the module bottom case 10 is 1; or the height of the boss structure is 10mm, the thickness of the module bottom case 10 is 1, etc., so that it is possible to further enhance the flexibility of the module bottom case 10, so that the module bottom case 10 can be bent at a certain angle.

In an alternative embodiment, the maximum distance between two adjacent protruding structures is adapted to the thickness of the protruding structures, for example, the maximum distance between two adjacent protruding structures is equal to 10mm, and the thickness of the protruding structures may fluctuate around 10mm, for example, 9.5mm or 10.5mm, etc., which may not only further enhance the flexibility of the module bottom case 10, so that the module bottom case 10 can be bent at a certain angle.

In an optional embodiment, a plurality of connection holes 14 are disposed on each of the second bosses 12 of the first boss 11, wherein the flexible lamp panel 20 is fixed in the module bottom chassis 10 through the connection holes 14, so as to realize fixed installation of the L ED display module 100.

It should be noted that the connection hole 14 may also be disposed in the recess 13, but for better fixing the flexible lamp panel 20 in the module bottom case 10, the connection hole 14 is preferably disposed in the second boss 12 of the first boss 11.

In an alternative embodiment, the module bottom case 10 is provided with a magnetic attraction member 15, wherein the module bottom case 10 is connected to the L ED display screen frame through the magnetic attraction member 15, so that the L ED display module 100 can be quickly connected to the L ED display screen frame.

As shown in fig. 1 to 9, according to a second aspect of the present application, the present application further provides an L ED display screen, which includes a frame and the L ED display module 100, wherein the flexible lamp panel 20 in the L ED display module 100 is mounted in the frame through the module bottom case 10.

Specifically, L ED display module assembly 100 includes flexible lamp plate 20 and module drain pan 10, wherein, flexible lamp plate 20 includes PCB base plate 22 and a plurality of L ED lamp pearl 21, a plurality of L ED lamp pearl 22 set up in PCB base plate 22's front, set up on module drain pan 10 on PCB base plate 22's the back in this embodiment, module drain pan 10 adopts the fine reinforcing PC combined material of glass to make, module drain pan 10 is equipped with recess 13 to one side of PCB base plate 22 back to, a pliability for reinforcing module drain pan 10, not only can strengthen the tensile strength of module drain pan 10, so that the module drain pan can bend, make the smoothness degree of both concatenation departments more level and smooth, also can improve the compressive strength of L ED display module assembly 100 installation simultaneously.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The above disclosure provides many different embodiments, or examples, for implementing different features of the invention. The components and arrangements of the specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An L ED display module is characterized by comprising a flexible lamp panel and a module bottom shell;

2. The L ED display module of claim 1, wherein the number of grooves is multiple, and multiple grooves are spaced along the bending direction of the module bottom case, so that the L ED display module can be bent through the grooves and form an arc-shaped structure.

3. The L ED display module according to claim 2, wherein each groove is an inverted V-shaped groove structure with a circular arc transition section at the bottom.

4. The L ED display module of claim 3, wherein the minimum distance from the bottom of the groove to the other side of the module bottom chassis is equal to 1/10 of the module bottom chassis thickness.

5. The L ED display module of claim 1, wherein the L ED light beads are arrayed along and perpendicular to a bending direction of the module bottom case.

6. The L ED display module of claim 5, wherein the back of the flexible lamp panel is provided with a plurality of rows of electronic devices at intervals along the bending direction of the module bottom case.

7. The L ED display module of claim 1, wherein the flexible lamp panel adopts FPC flexible circuit board, L ED lamp pearl subsides are adorned on the flexible lamp panel.

8. The L ED display module of claim 1, wherein the module bottom case has a magnetic attachment thereon, and the module bottom case is connected to the L ED display screen frame through the magnetic attachment.

9. The L ED display module of claim 8, wherein the module bottom shell is further provided with a plurality of attachment holes through which the module bottom shell is secured in the frame.

10. An L ED display screen, comprising a frame and the L ED display module set of any one of claims 1-9, wherein the flexible lamp panel of the L ED display module set is mounted in the frame through the module bottom case.