CN112071215B

CN112071215B - Face guard and display module assembly

Info

Publication number: CN112071215B
Application number: CN202010877309.4A
Authority: CN
Inventors: 贺金锋; 康鹏飞
Original assignee: Shenzhen Zhouming Technology Co Ltd
Current assignee: Shenzhen Zhouming Technology Co Ltd
Priority date: 2020-04-02
Filing date: 2020-08-27
Publication date: 2021-11-16
Anticipated expiration: 2040-08-27
Also published as: WO2021196604A1; CN112071215A

Abstract

The invention discloses a mask, comprising: the lamp beads are contained in each first through hole and clamped with the lamp beads, and an initial distance is reserved between every two adjacent mask units; the connecting unit is used for connecting the mask units, and a movable gap is formed between the connecting unit and each mask unit. Or, a display module assembly, includes lamp plate, a plurality of LED lamp pearl and face guard, and a plurality of LED lamp pearls are the matrix and set up on the lamp plate, and the face guard cover is established outside LED lamp pearl, and the face guard is foretell face guard. Because the initial distance has between two adjacent face guard units, and the distance is variable, in the use of face guard, when the face guard expends with heat and contracts with cold, the distance between two adjacent face guard units changes along with face guard expends with heat and contracts with cold, has avoided the face guard local arch, and then has avoided causing the screen shadow and has influenced display effect.

Description

Face guard and display module assembly

Technical Field

The invention relates to the technical field of LED display screens, in particular to a mask and a display module with the mask.

Background

The existing LED display screen needs to be provided with a face mask, but the thermal expansion coefficient of the conventional face mask material is several times that of a PCB (printed circuit board), so that the face mask can generate large stress in the process of thermal expansion and cold contraction, partial projection of the face mask is caused, screen shadow is caused, and the display effect is influenced.

Disclosure of Invention

The invention aims to provide a mask and a display module with the mask, and solves the technical problems that the existing mask generates large stress in the expansion and contraction process, so that the mask is locally raised, screen shadow is caused, and the display effect is influenced.

In order to solve the technical problems, the first technical scheme adopted by the invention is as follows: a mask, comprising:

the lamp holder comprises a plurality of mask units, wherein first through holes are formed in the mask units, each first through hole contains one lamp bead and is clamped with the lamp bead, and an initial distance is reserved between every two adjacent mask units;

the connecting unit is used for connecting the mask units, and a movable gap is formed between the connecting unit and each mask unit.

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a display module assembly, includes lamp plate, a plurality of LED lamp pearl and face guard, a plurality of LED lamp pearls be the matrix set up in on the lamp plate, the face guard cover is established outside the LED lamp pearl, the face guard is foretell face guard.

The invention has the beneficial effects that: according to the mask, the initial distance is reserved between the two adjacent mask units and the distance is variable, so that when the mask expands with heat and contracts with cold in the use process of the mask, the distance between the two adjacent mask units changes along with the expansion with heat and the contraction with cold of the mask, the local bulge of the mask is avoided, and further screen shadow and influence on the display effect are avoided.

Drawings

Fig. 1 is a schematic structural view of a mask unit in a mask according to a first embodiment of the present invention;

FIG. 2 is a schematic view of a mask according to a first embodiment of the present invention;

FIG. 3 is an exploded view of a display module according to a second embodiment of the present invention;

FIG. 4 is a cross-sectional view of a display module according to a second embodiment of the present invention;

FIG. 5 is an enlarged view taken at A in FIG. 4;

FIG. 6 is an enlarged view at B in FIG. 4;

FIG. 7 is an enlarged view at C of FIG. 4;

FIG. 8 is a side view of a display module according to a second embodiment of the present invention;

fig. 9 is a cross-sectional view of a mask unit in a display module according to a second embodiment of the present invention;

FIG. 10 is a cross-sectional view of a connection unit in a display module according to a second embodiment of the present invention;

FIG. 11 is a schematic view of a mask according to a third embodiment of the present invention;

FIG. 12 is a cross-sectional view of a mask according to a third embodiment of the present invention;

FIG. 13 is a cross-sectional view of a mask according to a fourth embodiment of the present invention;

fig. 14 is an exploded view of a mask unit in a mask according to a fourth embodiment of the present invention.

Description of reference numerals:

100. a mask unit; 110. a unit body; 120. a first through hole; 130. a first clamping block; 131. a first chamfer; 140. avoiding holes; 150. a positioning column; 160. a first body; 170. a second body; 180. a groove; 200. a connection unit; 210. a second through hole; 220. a second fixture block; 221. a second chamfer; 300. a lamp bead; 400. and a lamp panel.

Detailed Description

In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Example one

Referring to fig. 1 and fig. 2, a first embodiment of the present invention is: a mask comprises a plurality of mask units 100 and a plurality of connecting units 200, wherein the same connecting unit 200 is shared between every two adjacent four mask units 100 arranged in a matrix. The mask unit 100 includes a unit body 110, and a first through hole 120 is opened on the unit body 110. The mask unit 100 corresponds to a single lamp bead when being installed and used, the lamp bead is inserted into the first through hole 120, the unit body 110 is fixed with the lamp bead in a clamping manner instead of in a welding manner, and an initial distance is formed between two adjacent mask units 100 and refers to the initial distance after the installation is completed. In the present embodiment, the connection unit 200 can limit only the maximum distance between the adjacent mask units 100, but the distance between the adjacent two mask units 100 is variable. The face guard in this embodiment, though formed a whole by a plurality of face guard units 100 through linkage unit 200, but have initial distance between two adjacent face guard units 100, the LED display screen is in the in-process of using, when the face guard expends with heat and contracts with cold, the distance between two adjacent face guard units 100 can change along with expend with heat and contract with cold to make the face guard can not local arch, and then avoided causing the screen shadow to influence the display effect. The main function of the connection unit 200 is to integrate a plurality of relatively independent mask units 100 to facilitate the assembly and disassembly of the mask as a whole.

In this embodiment, as shown in fig. 1, the unit body 110 of the mask unit 100 is provided with first locking blocks 130 on the four inner walls of the first through hole 120, and the first locking blocks 130 are in contact with the lamp beads to realize clamping. It should be noted that the first blocks 130 on the four inner walls may be the same or different, and may be designed according to the lamp bead. In other embodiments, the first latch 130 is in interference fit with the lamp bead to ensure the stability of the clamping. In this embodiment, the first fixture block 130 is provided with first chamfers 131 on both the upper and lower surfaces in the mounting and moving direction, and the surface of the first fixture block 130 contacting the lamp bead is a plane. The setting of first chamfer 131 can play the effect that the direction was adjusted well to the installation on the one hand, and on the other hand can also play the effect of keeping away a pad to the first fixture block 130 of pad place direction, and two upper and lower faces all set up the chamfer for face guard unit 100 can two-way installation. In other embodiments, the first latch 130 may be provided with the first chamfer 131 only at the lower side in the mounting direction. In the present embodiment, the unit body 110 of the mask unit 100 is provided with two avoiding holes 140 on each side wall, and the two avoiding holes 140 are separated by the first block 130. The connection unit 200 passes through two mutually perpendicular and adjacent avoidance holes 140 on the same mask unit 100, and the connection unit 200 passes through eight avoidance holes 140 in total. The connection unit 200 is movable within the escape hole 140, thereby allowing the distance between adjacent mask units 100 to be variable.

In the present embodiment, as shown in fig. 2, the connection unit 200 is a closed ring. The connection unit 200 in the form of a closed loop in the present embodiment has at least the following two production manufacturing methods: firstly, the 3D printing technology is used for production and manufacturing, the 3D printing technology can complete the production and manufacturing of the whole mask, the whole mask comprises all mask units 100 and connecting units 200, the effect shown in figure 2 can be directly achieved, the distance between two adjacent mask units 100 of the produced mask is variable, and the connecting units 200 can move; secondly, the mask unit 100 is manufactured separately, and then the mask unit 100 and the connection unit 200 are assembled, and the connection unit 200 may be formed by bending a flexible material and then welding to form a closed loop. It should be noted that although the connection unit 200 shown in the drawings is a circular ring, it has only one shape, and the shape of the connection unit 200 includes, but is not limited to, a circular ring, and may also be a square ring or an irregular ring. In other embodiments, the connection unit 200 may be a detachable ring, the mask unit 100 is manufactured separately, the mask unit 100 and the connection unit 200 constitute a mask, the connection unit 200 in the form of a detachable ring has an opening before being assembled, the opening is closed after being assembled, the opening can be opened again for detachment in subsequent detachment, and the structure of the connection unit 200 in the form of a detachable ring can adopt a related structure similar to that of the rings of the handcuffs.

Example two

Referring to fig. 3 to fig. 10, a second embodiment of the present invention is: the utility model provides a display module assembly, includes lamp plate 400, a plurality of lamp pearl 300 and face guard, and a plurality of lamp pearl 300 are the matrix and set up on lamp plate 400, and the face guard cover is established outside lamp 300.

As shown in fig. 4 to 7, the mask includes a mask unit 100, the mask unit 100 includes a first latch 130 engaged with the lamp bead 300, the connection unit 200 includes a second latch 220 engaged with the lamp bead 300, and the mask is mounted on the display screen through the cooperation of the first latch 130 and the second latch 220 with the lamp bead 300, so that the mask is firmly connected with the display screen and is not easily loosened. Optionally, the plurality of first fixture blocks 130 are arranged on the mask unit 100 in pairs, the first fixture blocks 130 are arranged in a shape like a Chinese character 'mi' or a cross, the lamp bead 300 is arranged between the two oppositely arranged first fixture blocks 130, and the first fixture blocks 130 are in interference fit with the lamp bead 300; the plurality of second fixture blocks 220 are oppositely arranged on the connecting unit 200 in pairs, the second fixture blocks 220 are arranged in a shape like a Chinese character 'mi' or a cross, the lamp beads 300 are arranged between the two opposite second fixture blocks 220, and the second fixture blocks 220 are in interference fit with the lamp beads 300, so that the face mask is firmly connected with the display screen.

As shown in fig. 3, the number of the mask units 100 is at least four, four mask units 100 are arranged in a matrix, a space is provided between any two adjacent mask units 100, a connection unit 200 is disposed between the four mask units 100 and connects the four mask units 100, and the mask units 100 are movably connected with the connection unit 200. In this embodiment, the mask unit 100 includes a unit body 110, positioning posts 150 are respectively disposed at four corners of the unit body 110, the thickness of the unit body 110 is greater than that of the connection unit 200, two avoidance holes 140 for the connection unit 200 to pass through are respectively disposed on each side of the unit body 110, the two avoidance holes 140 on the same side of the unit body 110 are separated by a first fixture block 130, the connection unit 200 passes through two avoidance holes 140 vertically and adjacently disposed on the same mask unit 100, the connection units 200 respectively pass through the avoidance holes 140 on four mask units 100 arranged in a matrix, one of the positioning posts 150 of each mask unit 100 is disposed in an area surrounded by the connection units 200, the connection units 200 pass through eight avoidance holes 140 in total, so as to connect the four mask units 100 to form a mask, and the size of the mask is not limited by the sizes of the mask unit 100 and the connection unit 200, the face guard of corresponding size can be pieced together according to the area of actual display screen, satisfies large-scale display screen's user demand, does not have obvious concatenation gap between the face guard simultaneously, has avoided appearing bright dark line on the display screen and has influenced the display effect of display screen.

Furthermore, one lamp bead 300 is accommodated in the interval between two adjacent mask units 100 and two adjacent connecting units 200 in the mask, so that the lamp beads 300 clamped with the mask units 100 and the connecting units 200 on the display screen and the lamp beads 300 surrounded by the mask units 100 and the connecting units 200 respectively account for half, all the lamp beads 300 on the display screen are in the protection of the mask, the use amount of mask materials is reduced, and the production cost of the mask is favorably reduced.

Preferably, be equipped with changeable clearance between face guard unit 100 and the linkage unit 200, the face guard receives the temperature influence expend with heat and contract with cold, clearance increase or reduce between face guard unit 100 and the linkage unit 200, prevent that two adjacent face guard units 100 and linkage unit 200 from producing deformation influence each other because of expend with heat and contract with cold, and then lead to the local arch of face guard to form the shadow on the display screen, influence the whole display effect of display screen, the stress that produces lamp pearl 300 when having avoided face guard unit 100 or linkage unit 200 deformation simultaneously leads to lamp pearl 300 to damage or drop.

Referring to fig. 8 to 10, a first chamfer 131 is disposed at one end of the first fixture block 130 close to the lamp bead 300, a second chamfer 221 is disposed at one end of the second fixture block 220 close to the lamp bead 300, and the first chamfer 131 and the second chamfer 221 are arranged to play a role of guiding when the mask unit 100 and the connecting unit 200 are mounted on a display screen, so that the lamp bead 300 is aligned with the position between the two opposite first fixture blocks 130 or second fixture blocks 220, the mask is simple to assemble, and is convenient for later maintenance, thereby preventing the lamp bead 300 from being damaged due to excessive pressing of the first fixture block 130 or the second fixture block 220, and meanwhile, the inclined plane formed by the first chamfer 131 and the second chamfer 221 is used for avoiding a pad at the bottom of the lamp bead 300, and preventing the lamp bead 300 from falling off due to collision of the first fixture block 130 and the second fixture block 220 with the pad of the lamp bead 300.

EXAMPLE III

Referring to fig. 11 and 12, a third embodiment of the present invention is: a face mask comprises a plurality of face mask units 100, wherein the number of the face mask units 100 is at least two, and in the embodiment, the number of the face mask units 100 is four. The mask module further comprises connecting units 200, wherein the connecting units 200 are arranged between two adjacent mask units 100, and in the embodiment, the number of the connecting units 200 is four. When the mask is installed for use, an initial distance exists between two adjacent mask units 100, the initial distance refers to the initial distance of the mask after the mask is installed on a PCB, and the distance between two adjacent mask units 100 is variable. The face guard in this embodiment, because have initial distance between two adjacent face guard units 100, and the distance is variable, in the use of face guard, when the face guard expends with heat and contracts with cold, the distance between two adjacent face guard units 100 is changed along with the expend with heat and contract with cold of face guard, has avoided the face guard local arch, and then has avoided causing the screen shadow to influence display effect.

In the present embodiment, as shown in fig. 12, the mask units 100 are provided with the positioning posts 150, and two positioning posts 150 of two adjacent mask units 100 are located in the connecting unit 200. In the present embodiment, the connecting unit 200 can move relative to the positioning column 150, that is, the connecting unit 200 and the positioning column 150 can move relative to each other. When the mask units 100 expand with heat and contract with cold, the positioning columns 150 move relative to the connecting unit 200, so that the distance between two adjacent mask units 100 is changed. In other embodiments, the connection unit 200 may be fixed, that is, immovable in position, but the connection unit 200 may have certain flexibility, and when the mask units 100 expand with heat and contract with cold, the distance between two adjacent mask units 100 changes, so that the connection unit 200 generates certain deformation. In the present embodiment, the connection unit 200 is a closed ring, and the connection unit 200 in the form of a closed ring can be implemented at least by the following means: firstly, the whole mask is processed by a 3D printing technology or mold injection molding, and the connecting unit 200 is a closed ring from the production completion to the use process; secondly, the mask unit 100 is separately processed, the mask unit 100 and the connection unit 200 are assembled to form the mask, and the connection unit 200 can be formed by bending a certain flexible material and welding the bent material to form a closed ring after assembly. In other embodiments, the connection unit 200 may be a detachable ring, the connection unit 200 in a detachable form may have an opening when it is not assembled, the opening becomes smaller to form a closed during the assembly process, and the opening may be repeatedly opened during the subsequent disassembly, and the specific structure of the connection unit 200 in a detachable ring form may adopt a structure similar to the rings of the handcuffs, for example.

Example four

Referring to fig. 13 and 14, a fourth embodiment of the present invention is another possible solution to the structure of the mask unit 100 and the connecting unit 200 based on the third embodiment.

As shown in fig. 12, a connection unit 200 is arranged between two adjacent mask units 100, each mask unit 100 includes a first through hole 120 matched with a lamp bead, a first fixture block 130 clamped with the lamp bead is arranged in each first through hole 120, each connection unit 200 includes a second through hole 210 matched with the lamp bead, a second fixture block 220 clamped with the lamp bead is arranged in each second through hole 210, the mask and the display screen are tightly connected through the matching of the first fixture block 130 and the second fixture block 220 with the lamp beads, the mask units 100 and the connection units 200 with corresponding numbers can be selected according to the size of the display screen, so that the mask forms a whole, and gaps between modules form bright and dark lines on the display screen when a plurality of mask modules are spliced to avoid affecting the display effect of the display screen.

In this embodiment, the quantity of first fixture block 130 and second fixture block 220 is four, first fixture block 130 is the cross arrangement on face guard unit 100, the lamp pearl is located between two relative first fixture blocks 130 that set up, two relative first fixture blocks 130 and lamp pearl interference fit, second fixture block 220 also arranges the cross on coupling unit 200, the lamp pearl is located between two relative second fixture blocks 220 that set up, two relative second fixture blocks 220 and lamp pearl interference fit, it is firm to guarantee that face guard and display screen are connected, prevent that the face guard from taking off from the display screen pine and taking off.

Further, face guard unit 100 and coupling unit 200 swing joint, be equipped with changeable clearance between face guard unit 100 and the coupling unit 200, when the face guard produced expend with heat and contract with cold because of temperature variation, clearance between face guard unit 100 and the coupling unit 200 increases or reduces, prevent that the effect of mutual production of force between each module from taking place the deformation and leading to the face guard local arch to appear, avoid the interact between each module to make the lamp pearl atress drop or damage simultaneously, ensure that the display screen presents good display effect.

As shown in fig. 14, the mask unit 100 includes a first body 160 and a second body 170 detachably connected to each other, a positioning post 150 is disposed on the second body 170, a positioning hole matched with the positioning post 150 is disposed on the connecting unit 200, the connecting unit 200 is sleeved on the positioning post 150, a movable gap is provided between the positioning post 150 and the connecting unit 200, grooves 180 for accommodating the connecting unit 200 are disposed on two sides of the positioning post 150, the connecting unit 200 is first installed in the grooves 180, and then the first body 160 is fastened to the second body 170 and connected to the first body 160 and the second body 170, so as to complete the assembly of the mask unit 100 and the connecting unit 200, in this embodiment, the first body 160 can be bonded, clamped, or screwed to the second body 170, in other embodiments, the mask unit 100 and the connecting unit 200 can be integrally formed by 3D printing or injection molding.

In conclusion, the mask provided by the invention effectively solves the problems that the size of the mask is limited and the use requirement of a large-size display screen cannot be met, has good integration, avoids the problem that bright and dark lines are generated due to gaps among modules of the spliced mask, is movably connected with each other, has variable movable gaps among the modules, effectively prevents the influence of expansion with heat and contraction with cold on the mask, is convenient to install and disassemble, is convenient to maintain later and has low production cost.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.

Claims

1. A mask, comprising:

the connecting unit is used for connecting the mask units, and a movable gap is formed between the connecting unit and each mask unit;

the face guard unit includes the unit body, the thickness of unit body is greater than the thickness of linkage unit, be equipped with the confession on the lateral wall of unit body the hole of dodging that the linkage unit passed.

2. The mask according to claim 1, wherein: the face guard unit comprises positioning columns, the positioning columns are used for isolating two adjacent avoidance holes, and the positioning columns are located in an area defined by the connecting units.

3. A mask as defined in claim 2, wherein: the inner wall of the first through hole is convexly provided with a plurality of first clamping blocks which are abutted to the lamp beads, and first chamfers are respectively arranged on two sides of each first clamping block in the thickness direction of the face mask unit.

4. A mask as claimed in claim 3, wherein: in the thickness direction of the unit body, the first clamping block is connected with two sides of the avoiding hole.

5. The mask according to claim 1, wherein: the connecting unit is provided with a second through hole used for accommodating a lamp bead, and the inner wall of the second through hole is convexly provided with a plurality of second clamping blocks which are abutted against the lamp bead.

6. The mask according to claim 5, wherein: and in the thickness direction of the connecting unit, two sides of the second clamping block are respectively provided with a second chamfer.

7. The mask according to claim 1, wherein: the mask unit is provided with a positioning column, the connecting unit is provided with a plurality of positioning holes, the positioning holes are used for accommodating the positioning columns on the mask unit, and the positioning holes and the positioning columns have movable gaps.

8. The mask according to claim 7, wherein: one side of the face guard unit, which is provided with the positioning column, is provided with a groove for accommodating the connecting unit.

9. A display module comprises a lamp panel, a plurality of LED lamp beads and a face mask, wherein the LED lamp beads are arranged on the lamp panel in a matrix mode, the face mask is arranged outside the LED lamp beads, and the face mask is the face mask in any one of claims 1-8.