CN215895865U

CN215895865U - Lampshade for display module, display module and display device

Info

Publication number: CN215895865U
Application number: CN202121442673.4U
Authority: CN
Inventors: 郭长征
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Qstech Co Ltd
Current assignee: Qstech Co Ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-02-22
Anticipated expiration: 2031-06-28

Abstract

The utility model belongs to the technical field of display, and particularly discloses a lampshade for a display module, the display module and a display device. The lampshade comprises a non-light-transmitting face cover part and a flanging part which is arranged on the periphery of the face cover part in a surrounding mode, a plurality of light transmitting holes are formed in the face cover part in a penetrating mode, the lampshade further comprises light transmitting parts which are arranged on the light transmitting holes in a covering mode, the light transmitting parts and the light transmitting holes are arranged in a one-to-one correspondence mode, the light transmitting parts and the flanging part are respectively located on two opposite sides of the face cover part, and the light transmitting parts are provided with cover cavities which are communicated with the light transmitting holes. The display module assembly includes: the lamp panel assembly comprises a lamp panel and a luminous piece; the lamp shade as above, lamp plate assembly are located the inboard of turn-over portion, and the front of lamp plate is located to face guard portion cover, and printing opacity portion and luminous piece one-to-one set up, and luminous piece end stretches into in the cover chamber. The display device comprises a plurality of display modules which are spliced. The lampshade, the display module and the display device can reduce the gap between the light-emitting pieces and ensure the waterproof performance.

Description

Lampshade for display module, display module and display device

Technical Field

The utility model relates to the technical field of display, in particular to a lampshade for a display module, the display module and a display device.

Background

A Light Emitting Diode (LED) display module is a display screen for displaying various information such as text, images, and animation by controlling the display mode of a semiconductor LED, and has the characteristics of high screen brightness, high definition, flexible and variable display function, and arbitrary combination of screen areas.

Fig. 1 is a conventional LED display device in the prior art, the LED display device includes a display module 1000 disposed by splicing a plurality of panels, the display module 1000 includes a rear housing 300, a lamp panel assembly 200 disposed on the rear housing 300, and a cover 100 covering the front surface of the lamp panel assembly 200. Lamp plate subassembly 200 includes lamp plate 201 and sets up LED lamp pearl 202 on lamp plate 201, and LED lamp pearl 202 is located lamp plate 201 towards one side of face guard 100, and sealed glue is filled in order to realize that lamp plate 201 is positive waterproof in the front of lamp plate 201, and face guard 100 generally is used for protecting lamp plate subassembly 200 to play the effect of sheltering from sunshine.

The LED display device provided by the prior art, because the front of lamp plate 201 needs the potting sealant, rear shell 30 needs to set up the lateral wall 301 that encircles lamp plate 201, and need reserve potting clearance d1 between the lateral wall 301 of the LED lamp pearl 202 that is located the outside and rear shell 300, and d1 is more than or equal to 0.5mm to realize the flow of sealant between lamp plate 201 and rear shell 300. Therefore, when two adjacent display modules 1000 are spliced, the distance d between two LED lamp beads 202 mainly depends on the size of the LED lamp beads 202, the sealing gap d1 and the thickness d2 of the side wall 301, and since the sealing gap d1 needs to be greater than or equal to 0.5mm, the thickness d2 of the side wall 301 is difficult to be reduced, the gap between two LED lamp beads 202 is difficult to be reduced, the small-distance design of the LED display device is difficult to be realized, and the display quality of the LED display device is difficult to be continuously improved.

Therefore, a lampshade for a display module, a display module and a display device are needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a lamp cover for a display module, so as to better realize the small spacing arrangement of the display module and improve the display quality of the display module.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a lamp shade for display module assembly, the lamp shade includes non-light tight face cover portion and encloses the turn-ups portion of locating face guard portion periphery department, a plurality of light trap has been seted up to lining up on the face cover portion, the lamp shade is still located including covering the printing opacity portion of light trap, printing opacity portion with the light trap one-to-one sets up, just printing opacity portion with the turn-ups portion is located respectively face cover portion's relative both sides, printing opacity portion has the intercommunication the cover chamber of light trap.

The utility model has the beneficial effects that:

according to the lampshade provided by the utility model, the flanging part and the surface cover part are arranged, and the lamp panel component of the display module can be positioned at the inner side of the lampshade, so that the surface cover part can play a role in shielding and protecting the lamp panel component, and meanwhile, the waterproof setting of the front surface of the lamp panel component can be realized, the waterproof function can be realized without pouring sealant on the front surface of the lamp panel, namely, a sealant pouring gap is not required to be reserved on the front surface of the lamp panel. Compared with the traditional display module, the display module applying the lampshade provided by the utility model has the advantages that the glue filling gap at the side part of the luminous element is basically eliminated when the luminous element has the same size, so that the gap between two adjacent luminous elements can be effectively reduced, and the display module with small spacing is arranged. Meanwhile, due to the arrangement of the flanging part, the display module 10 does not need to be provided with a rear shell under the condition of glue pouring of the back surface of the lamp panel, even if the rear shell is arranged, the size of the side wall of the rear shell is smaller than that of the traditional rear shell or the side wall of the rear shell does not need to be arranged, so that the small-distance design influence of the thickness of the side wall of the rear shell on the display module and the display device can be reduced or eliminated, the gap between two adjacent light-emitting parts can be further reduced, and the design of the small-distance display module and the display device is further facilitated; simultaneously, through setting up non-printing opacity face cover portion and non-light tight printing opacity portion, when can realizing the printing opacity of illuminating part, realize the protection to lamp plate and illuminating part, can also avoid the light between the adjacent illuminating part to crosstalk, improve the display quality of the display module assembly who uses this lamp shade.

Another objective of the present invention is to provide a display module to better realize the small spacing arrangement of the display module, so as to improve the display quality of the display module.

a display module, comprising:

the lamp panel assembly comprises a lamp panel and a light-emitting piece which is electrically arranged on the front side of the lamp panel;

the lampshade is characterized in that the lamp panel assembly is located on the inner side of the flanging part, the face shield part covers the front face of the lamp panel, the light transmission part and the light emitting parts are arranged in a one-to-one correspondence mode, and the tail ends of the light emitting parts stretch into the cover cavities.

The utility model has the beneficial effects that:

according to the display module provided by the utility model, the lamp panel assembly is covered by the lamp shade, so that the gap between the light-emitting pieces is reduced while the waterproof effect is ensured, the display quality of the display module is improved, and the small distance arrangement of the display module is facilitated.

Another object of the present invention is to provide a display device to improve the display quality of the display device.

a display device comprises the display module and a plurality of display modules which are spliced.

The utility model has the beneficial effects that:

according to the display device provided by the utility model, the display quality of the display device can be improved by adopting the display module.

Drawings

Fig. 1 is a schematic structural diagram of an LED display device provided in the prior art;

fig. 2 is a schematic structural diagram of a display device according to an embodiment of the present invention.

The figures are labeled as follows:

1000. an LED display module; 100. a face mask; 200. a lamp panel assembly; 201. a lamp panel; 202. LED lamp beads; 300. a rear housing; 301. a side wall;

10. a display module; 1. a lamp shade; 11. a mask portion; 111. a light-transmitting hole; 112. an avoidance groove; 113. a light-blocking groove; 12. a light-transmitting portion; 121. a housing cavity; 13. flanging part; 14. a light blocking edge; 15. a light-blocking panel section; 2. a lamp panel assembly; 21. a lamp panel; 22. a light emitting member; 3. sealing the adhesive layer; 31. a side glue layer; 32. a back glue layer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; 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 in specific cases to those skilled in the art.

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.

As shown in fig. 2, the present invention provides a display device that realizes display of various information such as images, characters, and moving pictures by using LED display technology. The display device provided by the embodiment can be applied to indoor or outdoor scenes, such as commercial media, cultural performance markets, stadiums and the like, and the specific application scene of the display device is not limited by the utility model.

The display device comprises a plurality of display modules 10 which are spliced, and each display module 10 has an independent display function. A plurality of display module assembly 10 concatenation through the concatenation setting forms display device, can enlarge display device's display area when reducing display module assembly 10 size, reduces display module assembly 10 and display device's processing and assembly cost. The number of the display modules 10 in the display device is not limited, and the splicing mode of the display modules 10 and the control mode of the display pictures of the display modules 10 can refer to the prior art.

Display module assembly 10 includes sealant layer 3, lamp plate subassembly 2, lamp shade 1 and controller. The lamp panel assembly 2 comprises a lamp panel 21 and a plurality of light-emitting pieces 22 electrically connected to the front surface of the lamp panel 21, and the controller controls the light-emitting state of each light-emitting piece 22 through the lamp panel 21 so as to control a display picture formed by the plurality of light-emitting pieces 22; the lampshade 1 is used for protecting the lamp panel component 2; the sealing glue layer 3 is filled and sealed between the back of the lamp panel 21 and the lampshade 1, and is used for carrying out back waterproof sealing protection on the lamp panel assembly 2.

The lampshade 1 comprises a non-light-transmitting face shield part 11 and a flanging part 13 arranged around the periphery of the face shield part 11, a plurality of light-transmitting holes 111 are formed in the face shield part 11 in a penetrating mode, the lampshade 1 further comprises light-transmitting parts 12 arranged on the light-transmitting holes 111 in a covering mode, the light-transmitting parts 12 and the flanging part 13 are arranged in a one-to-one correspondence mode, the light-transmitting parts 12 and the flanging part 13 are located on two opposite sides of the face shield part 11 respectively, and the light-transmitting parts 12 are provided with cover cavities 121 communicated with the light-transmitting holes 111. The lamp panel assembly 2 is located at the inner side of the flanging part 13, the face shield part 11 covers the front face of the lamp panel 21, the light transmission parts 12 and the light emitting parts 22 are arranged in a one-to-one correspondence manner, and the tail ends of the light emitting parts 22 extend into the cover cavity 121.

The lamp shade 1 and the display module assembly 10 that this embodiment provided are through setting up turn-over portion 13 and face cover portion 11 to make lamp plate assembly 2 be located the inboard of 1 portion of lamp shade, make face cover portion 11 can play when sheltering from the guard action to lamp plate assembly 2, can also realize the positive waterproof setting to lamp plate assembly 2, make lamp plate 21 openly need not pour into sealed glue and can realize waterproof function, need not to reserve the encapsulating clearance promptly in lamp plate 21's front. That is, compared with the conventional display module 10, when the sizes of the light emitting elements 22 are the same, the display module 10 provided in this embodiment substantially eliminates the glue filling gap at the side of the light emitting elements 22, so that the gap between two adjacent light emitting elements 22 can be effectively reduced, and the small-distance display module 10 and the display device can be arranged; meanwhile, the flanging part 13 is arranged around the outer side of the lamp panel assembly 2, so that the display module 10 does not need to be provided with a rear shell under the condition of glue pouring of the back of the lamp panel, even if the rear shell is arranged, the size of the side wall of the rear shell is smaller than that of the traditional rear shell or the side wall of the rear shell does not need to be arranged, and therefore the small-distance design influence of the thickness of the side wall of the rear shell on the display module 10 and the display device can be reduced or eliminated, the gap between two adjacent light-emitting pieces 22 can be further reduced, and the design of the small-distance display module 10 and the display device is further facilitated; meanwhile, by arranging the non-light-transmitting mask portion 11 and the light-transmitting portion 12, the light-transmitting of the light-emitting member 22 can be realized, the lamp panel 21 and the light-emitting member 22 can be protected, the optical crosstalk between the adjacent light-emitting members 22 can be avoided, and the display quality of the display module 10 and the display device is improved.

In the embodiment, the cover portion 11 and the flange portion 13 are integrally formed, and the cover portion 11 and the flange portion 13 are made of non-light-transmitting and waterproof materials, so as to prevent light crosstalk between the two light emitting elements 22, and prevent the lamp panel 21 from being exposed out of the cover portion 11, thereby improving the display effect. The mask portion 11 is preferably made of a plastic material, such as a polycarbonate material.

The light-transmitting part 12 and the face mask part 11 are designed separately, the light-transmitting part 12 is made of transparent and waterproof materials, and the light-transmitting part 12 and the face mask part 11 are integrated by fusion technology, so that the seamless combination of the face mask part 11 and the light-transmitting part 12 is realized, and the whole waterproof performance and the structural reliability of the lampshade 1 are ensured.

In another embodiment, the mask portion 11, the light-transmitting portion 12 and the flange portion 13 are integrally formed, and the whole of the lampshade 1 is made of a light-transmitting and waterproof material, such as an acrylic material. The lampshade 1 is integrally formed, so that the structural processing convenience of the lampshade 1 can be improved, and the processing cost is reduced. In this arrangement, in order to realize the non-light-transmitting arrangement of the mask portion 11, the inner surface and/or the outer surface of the mask portion 11 is provided with a light-shielding layer to realize the light-shielding effect of the mask portion 11 and prevent the light of the light-emitting member 22 from being emitted from a place other than the light-transmitting portion 12. The light shielding layer may be formed by coating, pasting, or silk-screen printing, for example, black ink may be silk-screen printed on the inner surface of the mask portion 11 to achieve the light shielding effect of the mask portion 11.

The illuminating part 22 is an LED lamp bead, and the illuminating part 22 is preferably arranged on the lamp panel 21 in an array manner. The LED lamp beads may be plug-in type lamp beads, or patch type lamp beads, and the LED lamp beads may also be rectangular lamp beads, or spherical lamp beads, and the specific structure, type, and arrangement manner of the LED lamp beads on the lamp panel 21 may be specifically selected according to the display requirements of the display module 10, which is not specifically limited in the present invention.

Preferably, the shape of the housing 121 is adapted to the shape of the luminous element 22 to improve the light gathering and transmitting effect. More preferably, the light transmitting portion 12 has a shell-shaped structure with equal wall thickness at each position, that is, the shape of the light transmitting portion 12 is matched with the shape of the cover cavity 121, so as to improve the processing convenience of the light transmitting portion 12 and ensure the consistency of the light transmittance at each position of the light transmitting portion 121.

Further, a gap is formed between the inner wall of the cover cavity 121 and the light emitting member 22, so that the problem that the light-transmitting portion 12 presses the light emitting member 22 due to a processing error is avoided, and the display effect of the light emitting member 22 is improved.

The preferred parallel with lamp plate 21 of face guard portion 11, and the thickness of face guard portion 11 is less than the thickness that illuminating part 22 salient lamp plate 21 to reduce display module assembly 10's whole thickness, reduce the whole thickness and the whole weight of lamp shade 1. Further, the face shield part 11 can be attached to the front surface of the lamp panel 21, or a gap is formed between the face shield part 11 and the lamp panel 21, and the gap between the face shield part 11 and the lamp panel 21 is smaller than or equal to 0.2 mm.

The shape of the light-transmitting hole 111 is adapted to the shape of the luminous member 22. And preferably, the face cover portion 11 is provided with an avoiding groove 112 around the light transmission hole 111, the avoiding groove 112 is provided on a face of the face cover portion 11 facing the lamp panel 21, the avoiding groove 112 may be a rectangular groove or a tapered groove with a large end facing the lamp panel 21, and the arrangement of the avoiding groove 112 is beneficial to providing avoidance for a welding seam of the luminous element 22 on the lamp panel 21, and the face cover portion 11 is prevented from scratching the luminous element 22.

Further, the mask portion 11 is provided with a light shielding groove 113, the light shielding groove 113 and the light transmitting portion 12 are disposed in one-to-one correspondence, the light transmitting hole 111 penetrates through the bottom of the light shielding groove 113, and the light transmitting portion 12 is disposed in the light shielding groove 113. The light shielding groove 113 is arranged to ensure that the light emitting members 22 have enough light to emit from the light transmitting portion 12, so that the groove wall of the light shielding groove 113 can shield the light emitted to the adjacent light emitting members 22, thereby further avoiding the optical crosstalk between the adjacent two light emitting members 22 and improving the display quality of the display module 10.

In order to further avoid optical crosstalk between two adjacent light emitting members 22, a plurality of light blocking plate portions 15 are further convexly arranged on the mask portion 11, the light blocking plate portions 15 are arranged around the light-transmitting portion 12 in a surrounding manner, and the height of the light blocking plate portion 15 protruding out of the surface cover portion 11 is smaller than or equal to the height of the light-transmitting portion 12 protruding out of the surface cover portion 11. In the present embodiment, at least one sidewall of the light shielding groove 113 extends along a direction away from the lamp panel 21 and forms the light shielding plate 15.

In order to further improve the display effect of the display module 10, the light shade 1 further includes a light blocking edge 14 surrounding the periphery of the face cover portion 11, the light blocking edge 14 and the flanging portion 13 are respectively located on two opposite sides of the face cover portion 11, and the height of the light blocking edge 14 protruding out of the face cover portion 11 is greater than the height of the light-transmitting portion 12 protruding out of the face cover portion 11. The setting along 14 that is in the light can make display module assembly 10 and display device when outdoor use, shelters from sunshine and rainwater, increases display module assembly 10 and display device's display contrast, and improves the protection to display module assembly 10.

The preferred perpendicular connection with face cover portion 11 of turn-ups portion 13, this kind of setting can improve the appearance aesthetic property of display module assembly 10 in, can also make things convenient for the concatenation between two display module assemblies 10, simultaneously, makes things convenient for the processing of lamp shade 1. In other embodiments, the outer side surface of the cuff portion 13 may be inclined at an acute angle to the mask portion 11. That is, the angle between the outer side surface of the burring portion 13 and the outer surface of the panel portion is greater than 60 ° and equal to or less than 90 °.

The back of lamp plate 21 sets up electric elements such as circuit and drive IC, and in order to provide better water proof protection to the circuit at the lamp plate 21 back and electronic component, the back embedment of lamp plate 2 is formed with sealant layer 3 to the realization is to the back waterproof sealing of lamp plate assembly 2, guarantees that the device at the lamp plate 21 back does not receive the corruption of outdoor steam, smog etc. improves display module assembly 10 and display device's safety in utilization and reliability.

The setting of sealing glue layer 3 can be so that display module assembly need not to set up the backshell, can satisfy waterproof sealing's requirement. In other embodiments, the display module assembly also can include the backshell, and the backshell is located the bottom plate at lamp plate back and is enclosed the lateral wall of locating lamp plate week side including the cover, and the lateral wall is located between lamp plate and the turn-ups portion, through the cooperation between turn-ups portion and the lateral part, realizes lamp plate dorsal side's waterproof sealing.

The sealant layer 3 includes a sealant layer 32 covering the back of the lamp panel 21, and the sealant layer 32 is located inside the flanging part 13 and is connected to the flanging part 13 in a sealing manner. Through setting up gum layer 32, can provide water proof to the dorsal anticipating electric of lamp plate 21, and can prevent that water from getting into the front of lamp plate 21 from the clearance between lamp plate 21 and the turn-ups portion 13 through the sealing connection of gum layer 32 and turn-ups portion 13, guarantee display module's water-proof effects.

More preferably, the sealant layer 3 further includes a side adhesive layer 31 located between the lamp panel 21 and the flanging portion 13, and the side adhesive layer 31 and the back adhesive layer 32 are connected into a whole. Side glue film 31 and lamp plate 21 all contact with the inboard edge of turn-ups portion 13, and the clearance between lamp plate 21 and the turn-ups portion 13 is further filled promptly on side glue film 31, can prevent moisture entering lamp plate 21's front better, further improves display module's waterproof sealing effect.

Preferably, in this embodiment, the surface of the back adhesive layer 32 away from the lamp panel 21 is flush with the end surface of the end of the turned-over edge portion 13, so as to improve the overall aesthetic property of the display module. However, it should be understood that the thickness of the adhesive tape 32 may be set according to the actual sealing requirement, as long as the adhesive tape 32 is located inside the flanging portion 13 and tightly combined with the flanging portion 13, which is not limited in the present invention.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. The lamp shade for the display module is characterized by comprising a non-light-transmitting face shade part (11) and a flanging part (13) arranged around the periphery of the face shade part (11), wherein a plurality of light transmitting holes (111) are formed in the face shade part (11) in a penetrating mode, the lamp shade further comprises a light transmitting part (12) arranged on the light transmitting holes (111) in a covering mode, the light transmitting part (12) and the light transmitting holes (111) are arranged in a one-to-one correspondence mode, the light transmitting part (12) and the flanging part (13) are respectively located on two opposite sides of the face shade part (11), and the light transmitting part (12) is provided with a shade cavity (121) communicated with the light transmitting holes (111).

2. A lampshade according to claim 1, characterized in that the cover part (11) is integrally formed with the flange part (13), and the light-transmitting part (12) is designed separately from the cover part (11) and integrally connected with the cover part (11).

3. The lamp cover according to claim 1, wherein the cover portion (11), the light-transmitting portion (12) and the burring portion (13) are integrally molded, and a light-shielding layer is provided on an inner surface and/or an outer surface of the cover portion (11).

4. A lampshade according to claim 1, characterized in that the angle between the mask part (11) and the cuff part (13) is larger than 60 ° and smaller than or equal to 90 °.

5. The lampshade according to claim 1, characterized in that the cover part (11) is provided with an avoiding groove (112) around the light hole (111), and the avoiding groove (112) is provided on a surface of the cover part (11) far away from the light hole (12).

6. The lampshade according to claim 1, characterized in that a light blocking groove (113) is formed on one surface of the face cover part (11) facing the light-transmitting part (12), the light-transmitting parts (12) are arranged corresponding to the light blocking grooves (113), and the light-transmitting parts (12) are positioned in the light blocking grooves (113); and/or

The light blocking plate part (15) is arranged on the surface cover part (11) in a protruding mode, the light blocking plate part (15) is arranged around the light-transmitting part (12) in a surrounding mode, and the height of the light blocking plate part (15) protruding out of the surface cover part (11) is smaller than or equal to the height of the light-transmitting part (12) protruding out of the surface cover part (11).

7. A display module, comprising:

the lamp panel assembly (2) comprises a lamp panel (21) and a light-emitting piece (22) which is electrically arranged on the front surface of the lamp panel (21);

the lampshade of any one of claims 1 to 6, wherein the lamp panel assembly (2) is positioned at the inner side of the flanging part (13), the face cover part (11) is covered on the front face of the lamp panel (21), the light-transmitting parts (12) are arranged in one-to-one correspondence with the luminous parts (22), and the tail ends of the luminous parts (22) extend into the cover cavity (121).

8. The display module assembly of claim 7, further comprising a sealant layer (3), wherein the sealant layer (3) comprises a sealant layer (32) covering the back surface of the lamp panel (21), and the sealant layer (32) is located on the inner side of the flanging portion (13) and is hermetically connected with the flanging portion (13).

9. The display module assembly of claim 8, wherein the sealant layer (3) further comprises a side sealant layer (31) encapsulated between the side of the lamp panel (21) and the flanging part (13), and the side sealant layer (31) and the back sealant layer (32) are integrally connected.

10. A display device, comprising the display module according to any one of claims 7-9, wherein a plurality of the display modules are arranged in a splicing manner.