CN218122916U - Ventilation LED display module and ventilation LED display screen - Google Patents

Abstract

The utility model discloses a ventilated LED display module, which comprises an LED display module base body and a back bottom structure unit, wherein the LED display module base body is provided with a plurality of ventilated parts, the back bottom structure unit is connected on the LED display module base body and at least partially positioned at the ventilated parts for improving the background blackness of the LED display module base body; the back bottom structure unit is provided with a ventilation structure and/or can form a plurality of working positions, and the ventilation structure is arranged between the back bottom structure unit and the LED display module base body when at least one of the working positions can be formed. The utility model also discloses a ventilative LED display screen, including at least one foretell ventilative LED display module assembly. The utility model provides a ventilative LED display screen improves its contrast when can make the screen body have big ventilative nature, improves use value.

Description

Ventilation LED display module and ventilation LED display screen

Technical Field

The utility model relates to a LED shows technical field, especially relates to a ventilative LED display module assembly and ventilative LED display screen.

Background

With the rapid development of LED technology, in the fields of landscape brightening, lamp decoration, decoration and the like, a ventilated LED display screen composed of LED array arrangement is usually adopted, so as to bring a beautiful landscape to people, and economic benefit can be brought to users while spreading and transmitting economic information or business information to people through the displayed light information (including static or dynamically changing characters, patterns, video content and the like).

However, the existing ventilated LED display screen generally has low contrast, and people cannot clearly see the content displayed on the screen in the daytime, so that the effect in the daytime is poor and even the screen can not be used; in order to improve the using effect in the daytime, the prior art generally adopts the method of consuming larger electric power to improve the brightness of the LED pixel lamp so as to improve the contrast, which leads to the greatly improved using cost of the LED display screen and also reduces the economic benefits brought by the LED display screen to a certain extent.

The above background disclosure is only provided to aid in understanding the concepts and technical solutions of the present invention, and it does not necessarily belong to the prior art of the present patent application, and it should not be used to assess the novelty and inventive step of the present application without explicit evidence that the above content has been disclosed at the filing date of the present patent application.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a ventilative LED display screen improves its contrast when can make the screen body have big ventilative nature, improves use value.

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

in a first aspect, the utility model discloses a ventilative LED display screen, including LED display module base member and back bottom structure unit, wherein be equipped with a plurality of ventilative portions on the LED display module base member, back bottom structure unit connect on the LED display module base member and at least part be located a plurality of ventilative portions department be used for improving the background blackness of LED display module base member; the back bottom structure unit is provided with a ventilation structure and/or can form a plurality of working positions, and the ventilation structure is arranged between the back bottom structure unit and the LED display module base body when at least one of the working positions can be formed.

Preferably, the back structure unit adopts at least one of the following structures:

structure a: a porous membrane or porous cloth provided with a plurality of ventilation holes;

structure B: a baffle plate provided with a louver-shaped grating or a plurality of ventilation holes;

structure C: a hinge baffle;

structure D: the air curtain consists of a fixed flap and a swinging flap;

structure E: and the LED display module matrix is integrally formed and filled in a sheet entity at the ventilation part, and a plurality of ventilation holes or shutter-shaped gratings are formed in the sheet entity.

Preferably, the porous film or the porous cloth in the structure a, the baffle in the structure B, the flap baffle in the structure C, the wind curtain in the structure D, and the sheet-like entity in the structure E have the same color as or a darker color than the LED display module substrate, respectively.

Preferably, one end of the hinge baffle in the structure C is hinged to the LED display module base and the hinge baffle is located at the ventilation portion, so that the hinge baffle can swing back and forth at the ventilation portion.

Preferably, the fixed flap in the structure D is fixedly connected to the LED display module base, and the swing flap is located at the ventilation portion.

Preferably, the LED display module base includes a support and a plurality of LED light source modules, the plurality of LED light source modules are respectively and fixedly connected to the support, each LED light source module is respectively and fixedly connected to at least one LED pixel lamp, and a sunshade structure unit is disposed on the support and/or the LED light source modules.

Preferably, the sunshade structure unit adopts at least one of the following structures:

structure F: arranging a sun shield which is fixedly connected to the bracket and/or the LED light source module and is positioned above the LED pixel lamp;

structure G: arranging a sunshade eave which is correspondingly and fixedly connected above the LED pixel lamp;

structure H: the bracket and/or each LED light source module is arranged downwards, so that a sunshade structure unit is formed on each LED light source module.

In a second aspect, the utility model also discloses a ventilative LED display screen, including at least one first aspect ventilative LED display module assembly.

Preferably, the LED display screen includes a plurality of ventilative LED display module and many cable poles, wherein each LED display module base member adopts the crisscross bed frame disk structure that splices and form by many poles and have ventilative portion, a plurality of bed frame disk structure the LED display module base member is through many cable pole concatenation is as an organic whole, each bed frame disk structure connect respectively on the LED display module base member and set up many LED pixel lamps.

Preferably, the side edge of the LED display module base body of each pedestal disc structure is provided with at least one protruding positioning portion, the protruding positioning portion is used for being connected to a notch of the side edge of the LED display module base body of an adjacent pedestal disc structure in a clamping manner, and the notch is located at a ventilation portion of the pedestal disc structure or a recessed positioning portion arranged at the side edge of the LED display module base body.

Preferably, at least one protruding positioning portion and at least one recessed positioning portion are respectively arranged at the side edge of each base frame disc type structure of the LED display module base body, wherein a guiding groove and a fastener hole are further arranged at the protruding positioning portion, the protruding positioning portion and the recessed positioning portion which correspond to each other when two adjacent LED display module base bodies are spliced are matched with each other, the guiding groove is used for accommodating the cable rod, and the cable rod is fixedly arranged in the guiding groove through a fastener which is fixedly connected in the fastener hole.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model provides an in ventilative LED display module assembly and ventilative LED display screen connect through a plurality of ventilative portions on the LED display module assembly base member and set up the back of the body constitutional unit that is used for improving the background blackness, wherein, be equipped with ventilative structure on the back of the body constitutional unit and/or can form a plurality of work positions, and be equipped with ventilative structure between back of the body constitutional unit and the LED display module assembly base member when at least one work position in a plurality of work positions that can form, thereby improve its contrast when can make the screen body have big ventilation nature, and the use value is improved, and economic benefits is increased.

In a further aspect, the present invention also has the following advantages:

(1) When the back bottom structure unit adopts a porous membrane or porous cloth provided with a plurality of ventilation holes, the material cost is low, the weight of the added module is extremely small, the reflection of light rays can be reduced, a large amount of light rays transmitted from the back can be shielded, and meanwhile, a plurality of ventilation holes on the back bottom structure unit can still allow some air flows to pass through; in addition, the structure can realize ventilation and ensure that residents in buildings behind the structure can have certain lighting and landscape effects.

(2) When the back bottom structure unit adopts a loose-leaf baffle or a wind curtain structure, when no wind exists or wind power is small, the back bottom structure unit is hung by self weight to shield the original wind penetration part, and reflected light is reduced to block transmitted light; when the air current passes through, loose-leaf baffle or wind curtain structure can be blown and form the work position that is equipped with ventilative structure between back of the body constitutional unit and LED display module base member to can realize the big ventilative nature and the high contrast of the screen body simultaneously.

(3) And a sunshade structure unit is respectively arranged on the support and/or the LED light source module contained in the LED display module substrate, so that the overall contrast of the screen body is further enhanced, and the use value is improved.

(4) Set up protrusion location portion in the side department of bed frame disc structure's LED display module base member, positioning action when can realizing the concatenation has avoided work such as loaded down with trivial details location measurement, alignment marking off, join in marriage and make the mounting hole, install various auxiliary fittings when the installation, has alleviateed high altitude construction's intensity of labour, has improved efficiency of construction and security, the application of especially adapted fast-assembling quick detach.

(5) Set up protrusion location portion and sunken location portion in the side department of the LED display module base member of bed frame disk structure, and set up at protrusion location portion department simultaneously and lead groove and fastener hole, not only avoided when the installation loaded down with trivial details location measure, find accurate marking off, join in marriage work mounting hole, work such as the various auxiliary assembly of installation, make the whole planarization of whole large screen better moreover, the installation is more firm, more convenient, demolish also simple and convenient.

Drawings

Fig. 1 is a schematic structural view of an LED display module in a ventilation LED display screen according to a first embodiment of the present invention;

FIG. 2a is an enlarged schematic view at A in FIG. 1;

FIG. 2B is an enlarged schematic view at B in FIG. 1;

FIG. 3a is a schematic view of an LED light bar of FIG. 1;

FIG. 3b is a schematic view of another structure of the LED light bar of FIG. 1;

fig. 4 is a schematic structural view of an LED display module in a ventilation LED display screen according to a second embodiment of the present invention;

FIG. 5a is an enlarged schematic view at C in FIG. 4;

FIG. 5b is an enlarged schematic view at D of FIG. 4;

FIG. 5c is an enlarged schematic view at E in FIG. 4;

fig. 6 is a schematic view of a part of the structure of a ventilation LED display screen according to a third embodiment of the present invention;

FIG. 7 is an enlarged schematic view at F of FIG. 6;

FIG. 8 is a schematic structural diagram of an LED display module of the ventilated LED display screen in FIG. 6;

FIG. 9a is an enlarged schematic view at G of FIG. 8;

FIG. 9b is an enlarged schematic view at H in FIG. 8;

FIG. 9c is an enlarged schematic view of the curtain of FIG. 8;

fig. 10 is a schematic view of a partial structure of a ventilation LED display screen according to a fourth embodiment of the present invention;

FIG. 11 is an enlarged schematic view at I of FIG. 10;

FIG. 12 is a schematic structural diagram of an LED display module of the ventilated LED display screen of FIG. 10;

fig. 13 is an enlarged schematic view at J in fig. 12.

Detailed Description

The embodiments of the present invention will be described in detail below. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. In addition, the connection may be for either a fixed function or a circuit/signal communication function.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

To the structure and the module contrast of present LED display screen low, the poor problem of effect daytime, the inventor finds through intensive research that there is following reason: (1) In order to ensure that the screen body cannot form a dark background due to ventilation of the screen body, light rays at the rear part of the screen penetrate through the ventilation holes on the screen body to interfere and influence the LED pixels on the screen body to emit light, namely, the transmitted light and the pixel light are mixed in the same direction; (2) The LED pixel lamp on the screen body (module) is not provided with a proper shading structure, so that sunlight directly irradiates on the LED pixel lamp and is reflected to be mixed with the light emitting direction of the LED pixel lamp in the same direction. Above-mentioned problem makes at present ventilative LED screen and module contrast low, and daytime can't use almost, perhaps consumes electric power and greatly improves the luminance of LED pixel lamp and improve the contrast, the use value of greatly reduced screen.

Based on above reason, the embodiment of the utility model provides a through improving several kinds of ventilative LED screen structures and modules, add can ventilate and can improve the back of the body constitutional unit of the back that screen body, display module set background blackness can be improved again and avoid sunshine to penetrate directly on LED pixel lamp and the sunshade structure of reflection, improve its contrast when making the screen body still can have big ventilation, improve use value. And the related module is further improved to be more convenient for positioning and installation.

The utility model discloses a ventilated LED display module, which comprises an LED display module base body and a back bottom structure unit, wherein the LED display module base body is provided with a plurality of ventilated parts, the back bottom structure unit is connected on the LED display module base body and at least partially positioned at the ventilated parts for improving the background blackness of the LED display module base body; the back bottom structure unit is provided with a ventilating structure and/or can form a plurality of working positions, and the ventilating structure is arranged between the back bottom structure unit and the LED display module base body when at least one working position in the plurality of working positions can be formed.

In a further embodiment, the back structure unit adopts at least one of the following structures:

structure a: a porous membrane or porous cloth provided with a plurality of ventilation holes;

structure B: the baffle is provided with a louvered grating or a plurality of ventilation holes;

structure C: a loose-leaf baffle;

structure D: the air curtain consists of a fixed flap and a swinging flap;

structure E: and the flaky entity is integrally formed with the LED display module matrix and filled in the ventilation part, and a plurality of ventilation holes or shutter-shaped gratings are formed in the flaky entity.

The back bottom structure units in the structure A, the structure B and the structure E are all provided with ventilation structures (ventilation holes); although the back bottom structure units of the structure C and the structure D are not necessarily provided with the ventilation structures, the two structures can swing back and forth on the LED display module base body in a windy or airflow state, and when the back bottom structure unit swings back and forth, the back bottom structure unit is located at a working position where the ventilation structures are arranged between the back bottom structure unit and the LED display module base body.

The color of the porous membrane or the porous cloth in the structure A, the baffle in the structure B, the loose-leaf baffle in the structure C, the air curtain in the structure D and the sheet-shaped entity in the structure E are respectively the same as or darker than that of the LED display module matrix. One end of the hinge baffle in the structure C is hinged to the LED display module base body, and the hinge baffle is located at the ventilation portion, so that the hinge baffle can swing back and forth at the ventilation portion. The fixed valve in the structure D is fixedly connected to the LED display module base body, and the swinging valve is located in the ventilation portion.

In some embodiments, the LED display module base includes a support and a plurality of LED light source modules, the plurality of LED light source modules are respectively and fixedly connected to the support, each LED light source module is respectively and fixedly connected to at least one LED pixel lamp, and a sunshade structure unit is disposed on the support and/or the LED light source module.

Wherein, sunshade constitutional unit adopts following at least one kind structure:

structure F: the LED lamp is provided with a sun shield (the sun shield can be arranged on the bracket and also can be arranged on the LED light source module), and the sun shield is fixedly connected to the front side of the LED light source module and is positioned above the LED pixel lamp;

structure G: a plurality of sunshade eaves are arranged on each LED light source module, and each sunshade eaves is correspondingly and fixedly connected above each LED pixel lamp;

structure H: the LED light source modules are arranged downwards, so that a sunshade structure unit is formed on each LED light source module.

The utility model discloses another preferred embodiment discloses a ventilative LED display screen, including at least one foretell ventilative LED display module assembly, when including a plurality of ventilative LED display module assemblies, this ventilative LED display screen is formed by a plurality of ventilative LED display module assembly concatenations.

In some embodiments, the LED display screen includes a plurality of ventilation LED display modules and a plurality of cable rods, wherein each LED display module base body adopts a base frame disc structure with a ventilation portion formed by the staggered splicing of a plurality of rods, the LED display module base bodies of the plurality of base frame disc structures are spliced into a whole through the plurality of cable rods, and the LED display module base bodies of each base frame disc structure are respectively provided with a plurality of LED pixel lamps.

In some further embodiments, at least one protruding positioning portion is arranged at a side edge of the LED display module base body of each pedestal disk type structure, the protruding positioning portion is used for being connected at a notch of a side edge of the LED display module base body of an adjacent pedestal disk type structure in a clamping manner, and the notch is located at a ventilation portion of the pedestal disk type structure or a recessed positioning portion arranged at the side edge of the LED display module base body.

In some further embodiments, at least one protruding positioning portion and at least one recessed positioning portion are respectively disposed at the side edge of each of the LED display module substrates of the chassis disc structure, wherein a guiding groove and a fastener hole are further disposed at the protruding positioning portion, and the corresponding protruding positioning portion and the recessed positioning portion are matched with each other when two adjacent LED display module substrates are spliced, wherein the guiding groove is used for accommodating a cable rod, and the cable rod is fixedly disposed in the guiding groove through a fastener fixedly connected in the fastener hole.

The following description will be made in detail with reference to specific embodiments of the present invention for a ventilated LED display module and a ventilated LED display screen.

Embodiment one (Lamp bar grille screen and module thereof)

As shown in fig. 1, the present embodiment discloses a ventilation LED display module 100 and a corresponding ventilation LED display screen, wherein the ventilation LED display screen includes a plurality of ventilation LED display modules 100, each ventilation LED display module 100 includes a support column 110 and a plurality of LED light bars 120, and the plurality of LED light bars 120 are respectively connected with a plurality of LED pixel lamps 121. Specifically, a plurality of LED pixel lamps 121 and their related circuits are installed in a strip-shaped groove to form LED light bars 120, then the LED light bars 120 are arranged one by one in a grid shape on the support column 110, a circuit for connecting and driving each LED light bar 120 is provided inside the support column 110 to form the ventilation LED display module 100, and then the ventilation LED display modules 100 are assembled one by one on a steel structure to form a large screen (ventilation LED display screen). Each of the ventilation LED display modules 100 is provided with a plurality of ventilation portions 130, and the ventilation portions 130 are formed by a gap between every two adjacent LED light bars 120.

In order to make the ventilating LED display module 100 have a background with black or dark color as a whole and still be able to pass through the air flow (wind) blown from the front and the back, a large number of ventilating gaps (the ventilating portion 130) originally formed thereon are filled with a back bottom structure unit for increasing the background blackness, and the specific back bottom structure unit adopts at least one of the following structures (that is, the back bottom structure unit may adopt one of the following structures, or may adopt several of the following structures to be used in combination):

a. a light and thin porous structure 140 is adhered to the rear of the LED light bar 120 on each ventilation LED display module 100, the porous structure 140 is a porous film or porous cloth, and a plurality of ventilation holes 141 are formed in the porous structure 140, so that the material cost is low, the weight of the module is increased a little, the material is black or other dark colors, the reflection of light is reduced, a large amount of light transmitted from the rear is shielded, and meanwhile, fine dense holes in the material can still transmit some air flows, as shown in fig. 2 a;

b. a ventilated fine louvered grating or a baffle 150 with a large number of fine holes is installed between the LED light bars 120, as shown in fig. 2 b;

c. the loose-leaf baffles 160 capable of swinging back and forth with wind are arranged between the LED light bars 120, the loose-leaf baffles 160 are similar to a suspended door, door shafts at two ends can rotate in door pivots, when no wind exists or wind power is low, the loose-leaf baffles are suspended by self weight to shield original ventilating gaps (the ventilating parts 130), the loose-leaf baffles 160 are black or dark, reflected light is reduced to block transmitting light, when air flows, the loose-leaf baffles 160 are blown up to pass through, and when the loose-leaf baffles 160 are arranged, the ventilation rate of the ventilating LED display module 100 is very high, as shown in FIG. 2 b;

d. the air curtain 170 which can swing back and forth along with wind and pass through air flow is installed between the LED light bars 120, the air curtain 170 is composed of a fixed flap 171 and a swinging flap 172, the fixed flap 171 is installed on the LED light bars 120, the other parts of the fixed flap are formed into the swinging flap 172 which can swing along with the wind, the material of the air curtain 170 can be made of soft and light materials such as plastic films, plastic cloth and the like, the principle and effect are similar to that of the loose-leaf baffle 160, but the material and manufacturing installation cost is low, and the weight of the ventilated LED display module 100 is increased very little, as shown in FIG. 2 b.

The material used in each of the above structures is a material with a color darker than that of the ventilation LED display module 100, and more preferably, a material with a black color or other dark colors may be used.

In order to make the ventilating LED display module 100 have a sunshade structure unit for preventing sunlight from directly irradiating on the LED pixel lamp 121 and reflecting, the specific sunshade structure unit adopts at least one of the following structures (i.e. the sunshade structure unit may adopt one of the following structures, or may adopt several of the following structures to be used in combination):

a. a sun visor 170 protruding from the light emitting surface of the LED pixel lamp 121 is installed above the LED pixel lamp 121 of the LED light bar 120, the sun visor 170 may be integrally manufactured with the housing of the LED light bar 120, or may be installed later as required, for example, a screen in a room or running at night does not need to be installed, as shown in fig. 3 a;

b. the sunshade shadow region for preventing the sunlight from directly irradiating the upper light emitting surface of the LED light bar 120 is formed by inclining the LED light bar 120 downwards by a certain angle, and the frame of the LED light bar 120 can be made into a trapezoidal frame 122 to incline the light emitting surface downwards, as shown in fig. 3b, and in addition, the light bar can be installed obliquely when being installed.

EXAMPLE two (lattice screen)

As shown in fig. 4, the embodiment discloses a ventilation LED display module 200 and a corresponding ventilation LED display screen, the ventilation LED display screen includes a plurality of ventilation LED display modules 200, each ventilation LED display module 200 includes a strip-shaped support 210 and a plurality of strings of packaged LED light source modules 220, and each string of LED light source modules 220 is respectively connected with a plurality of LED pixel lamps 221. Specifically, the strip-shaped support 210 is further provided with a plurality of ropes 211, a plurality of strings of packaged string LED light source modules 220 are respectively mounted on the strip-shaped support 210, and then the rope 211 is connected with the strip-shaped support 210 one by one at regular intervals up and down to form bead curtain-shaped dot matrix components, and large gaps are formed outside necessary structures of the bead curtain-shaped dot matrix components to form the ventilation part 230, and the bead curtain-shaped dot matrix components can be rolled up and down and are spread out and hung one by one to form a large screen (ventilation LED display screen) during mounting.

In order to make the structural assembly have a background with black or dark appearance and still be able to pass through the air flow (wind) blown from front to back, a large number of ventilating gaps (ventilating parts 230) originally formed on the structural assembly are filled with a back bottom structural unit for improving the background blackness, and the specific back bottom structural unit adopts at least one of the following structures (that is, the back bottom structural unit can adopt one of the following structures, and can also adopt a combination of several of the following structures):

a. the strip-shaped bracket 210 is provided with an air curtain 240 which can swing back and forth along with the wind, the air curtain 240 consists of a fixed flap 241 and a swinging flap 242, the fixed flap 241 is arranged on the strip-shaped bracket 210, and the other parts form the swinging flap 242 which can swing along with the wind, as shown in fig. 5 a;

b. an air curtain 250 is installed on the LED light source module 220, a fixed flap 251 of the air curtain 250 is connected to each LED pixel lamp 221, and the periphery of the fixed flap 251 extends outwards to form a swinging flap 252 capable of swinging with the wind, and the swinging flaps are combined together to form a back bottom structure unit, as shown in fig. 5 b.

c. A flexible, bendable, light and thin porous structure 260 is adhered to the upper back of the strip-shaped support 210, and the porous structure 260 is a porous membrane or a porous cloth, and is provided with a plurality of ventilation holes 261, as shown in fig. 5 c.

Obviously, the above forms can still ensure that the bead curtain-shaped lattice component in the embodiment can be rolled up and down and unfolded, and the problem of installing the back bottom structural unit for improving the background blackness is solved while the original characteristics are maintained.

In order to provide the dot matrix assembly with a sunshade structure unit for preventing sunlight from directly irradiating and reflecting on the LED pixel lamp, the specific sunshade structure unit adopts at least one of the following structures (i.e. the sunshade structure unit can adopt one of the following structures, and can also adopt several of the following structures for combined use):

a. a sunshade 270 is integrally manufactured on the bar-shaped bracket 210 or the sunshade 270 is installed later, as shown in fig. 5 a;

b. each LED pixel lamp 221 is provided with a sunshade brim 280, as shown in fig. 5 a;

c. the strip-shaped bracket 210 or the ventilation LED display module 200 is inclined downwards, or the strip-shaped bracket 210 is installed downwards to form a sunshade shadow area.

EXAMPLE III (display screen module screen with base frame plate structure)

As shown in fig. 6, the present embodiment discloses a ventilation LED display module 300 and a corresponding ventilation LED display screen, which includes a plurality of ventilation LED display modules 300 with a pedestal pan structure and a plurality of cable rods 400. As shown in fig. 8, the chassis 310 of the ventilation LED display module 300 is formed by mutually splicing a plurality of cross bars 311 and a plurality of longitudinal bars 312 in a staggered manner, holes 313 are respectively formed at the junctions of the plurality of cross bars 311 and the plurality of longitudinal bars 312, LED pixel lamps 320 (a part of LED pixel lamps are not shown in fig. 8) are installed in the holes 313, and a large number of large ventilation gaps (ventilation portions 330) are formed in the ventilation LED display module 300 of the chassis structure to allow the module to ventilate.

In order to make the module have a background with black or dark appearance and still be able to pass through the air current (wind) blown from front to back, a large number of ventilation gaps (ventilation parts 330) on the module are filled with a back bottom structure unit for improving the background blackness, and the specific back bottom structure unit adopts at least one of the following structures (namely, the back bottom structure unit can adopt one of the following structures, and can also adopt several of the following structures for combined use):

a. when the pedestal pan 310 is manufactured, for example, by injection molding, a solid body with dense small holes or fine grids is integrally formed and filled in the ventilation gap (the ventilation part 330), which reduces the post-process but increases the weight of the pedestal pan 310.

b. A thin porous membrane or cloth is adhered to the rear of the base plate 310.

The structure a and the structure b are adopted, so that ventilation can be realized, and meanwhile, residents in buildings behind the building can have certain lighting and landscape effects.

c. For the base tray 310 of the present embodiment that the LED pixel lamps 320 are installed in the holes 313, if the cross bars 311 and the longitudinal bars 312 connected to the LED pixel lamps 320 are thin and not easy to install a large wind curtain, a porous membrane or a porous cloth, a small wind curtain 340 can be installed behind the LED pixel lamps 320, the fixed flaps 341 of the wind curtain 340 are fixedly connected to the bottom of each LED pixel lamp 320, and the fixed flaps 341 extend outward in the four circumferential directions to form the swinging flaps 342 capable of swinging with the wind, as shown in fig. 8 and 9c, and are combined together to form a back bottom structure unit.

In order to provide the module with a sunshade structure unit for preventing sunlight from directly irradiating on the LED pixel lamp and reflecting, a sunshade 350 protruding from the light emitting surface of the LED pixel lamp 320 may be integrally formed during the manufacturing of the pedestal tray 310, or may be mounted later as required in a component manner, as shown in fig. 9 a.

As shown in fig. 6, when the plurality of the ventilating LED display modules 300 of the pedestal pan type structure are assembled into a large screen, the large screen is assembled by hanging with a cable rod 400 (for example, a rope or a thin rod) or only bound with each other, and then a nylon cable tie or an iron wire is passed through holes on the pedestal pan 310 to bind with each other or bound with the hanging cable rod 400 to assemble and fix. However, the existing ventilation LED display module 300 with the pedestal disk structure has the disadvantages of inaccurate positioning, large accumulated error in continuous installation, poor binding weather resistance, and easy mutual influence during disassembly, which easily causes the hidden trouble of instability of adjacent modules, or needs to add other special accessories and assemble at high altitude to achieve accurate and firm positioning, which increases the cost and hidden trouble of parts breakage and falling during high altitude operation. In order to better assemble and install the large screen, the present embodiment further improves the pedestal tray 310, so that it can rely on itself to realize positioning correction, and can form flatness and mutual accurate positioning during assembling to achieve precise pixel spacing.

With reference to fig. 7 and 9b, in order to enable the base frame disc 310 to be accurately positioned by itself when assembling and combining a large screen, two adjacent sides of the base frame disc 310 are respectively provided with a protruding positioning portion 314, the protruding positioning portion 314 can be connected to a gap on the side of the adjacent base frame disc 310 in a snap-fit manner, and the gap is located at the ventilation portion 330 of the base frame disc 310. Specifically, the protruding positioning portion 314 is a hook-shaped structure and includes an extending portion 3141 and a flange portion 3142, the extending portion 3141 is formed by extending outward from a side edge of the base frame disk 310, and the flange portion 3142 is vertically protruded from an end portion of the extending portion 3141, so that when two base frame disks 310 are spliced together, the flange portion 3142 can be engaged with a notch of the base frame disk 310. In this embodiment, the upper side and the left side of the base tray 310 are respectively provided with a protruding positioning portion 314, the protruding positioning portion 314 on the upper side can be embedded into a corresponding notch on the lower portion of the base tray 310 thereon, and is limited by the edge structure thereof so as not to slide, thereby mutually positioning the upper, lower, left and right positions with the base tray 310 on the upper portion; the left raised detent 314 may be inserted into a corresponding notch in the right portion of the pedestal pan 310 to the left thereof, thereby positioning their up, down, left, and right positions with respect to the left pedestal pan 310, and so on. The ventilative LED display modules 300 of all the pedestal pan structures on the display screen assembled and spliced by the pedestal pan 310 are precisely positioned with each other to ensure the precise positions of all the pixels on the display screen, and fig. 6 is a schematic view of hanging and installing the display screen.

Embodiment four (base frame plate embedded light-operated circuit board type display module screen)

As shown in fig. 10, the present embodiment discloses a ventilation LED display module 500 and a corresponding ventilation LED display screen, which includes a plurality of ventilation LED display modules 500 with a base frame disc structure and a plurality of cable rods 600. Referring to fig. 12, the chassis plate 510 of the ventilating LED display module 500 is formed by a plurality of staggered rods 511 (the rods 511 include horizontal rods, vertical rods and diagonal rods), a groove 5111 is formed on the thick rods 511, a light control circuit board (not shown) for driving LED pixel lamps (not shown) to emit light in a controlled manner is installed in the groove 5111, and a large number of ventilating gaps (ventilating portions 530) are formed on the ventilating LED display module 500 of the chassis plate structure to allow the module to ventilate.

In order to make the module have a background with black or dark appearance and still be able to pass through the air current (wind) blown from front to back, a large number of ventilation gaps (ventilation parts 530) are filled with a back bottom structure unit for improving the background blackness, and the specific back bottom structure unit adopts at least one of the following structures (namely, the back bottom structure unit can adopt one of the following structures, and can also adopt several of the following structures to be used in combination):

a. when the pedestal pan 510 is manufactured, for example, by injection molding, a solid body with dense small holes or fine grids is integrally formed and filled in the ventilation gap (the ventilation part 530), which reduces the post-process but increases the weight of the pedestal pan 510.

b. A thin and light porous film or cloth is adhered to the rear of the base plate 510.

The structure a and the structure b are adopted, so that ventilation can be realized, and residents in a building behind the building can have certain lighting and landscape effects.

c. The air curtain 540 capable of swinging back and forth along with the wind is installed in the ventilating gap (the ventilating part 530) on the pedestal pan, the air curtain 540 consists of a fixed flap and a swinging flap, the fixed flap is installed on the solid part on the pedestal pan, and the other parts form the swinging flap capable of swinging along with the wind, as shown in fig. 12, the material of the air curtain 540 can be made of soft and light material, the material can also be prefabricated into a porous form, so that the effects of reducing weight and ventilating wind and enabling residents in buildings behind the air curtain to be capable of lighting and viewing are further brought, and the air curtain 540 made of the material with semi-permeability also has certain effect.

In order to provide the module with a sunshade structure unit for preventing sunlight from directly irradiating on the LED pixel lamp and reflecting, a sunshade plate 550 protruding from the light emitting surface of the LED pixel lamp can be integrally formed when the base tray 510 is manufactured, or can be mounted later as required by a component manner, as shown in fig. 11.

As shown in fig. 10, when a large screen is spliced by a plurality of the ventilating LED display modules 500 having the pedestal pan structure, the large screen is hung and assembled by using the cable rods 500 (for example, ropes or thin rods) or only bound and assembled with each other, and then nylon cable ties or iron wires are bound and assembled with each other through holes on the pedestal pan 510 or bound, assembled and fixed with the hanging cable rods 600. However, the ventilated LED display module 500 of the existing pedestal disc type structure has the defects of inaccurate positioning, large accumulated error in continuous installation, poor binding weather resistance, unstable binding weather resistance, easy hidden danger of instability of adjacent modules caused by mutual influence during dismantling and the like, or has the hidden dangers of cost increase, trivial part falling during overhead operation and the like because other special accessories are required to be added for accurate and firm positioning and assembled at high altitude. In order to make it can better assemble and install the large screen, the present embodiment further improves the pedestal pan 510, makes it able to rely on itself to realize positioning correction, and when assembling, can form straightness and mutual accurate positioning to reach the pixel pitch accuracy.

In order to make the base frame discs 510 capable of being mutually precisely positioned by themselves when assembling and combining a large screen, in this embodiment, a protruding portion and an embedding portion which can be used for mutually positioning with the adjacent base frame disc 510 are arranged at the side edge of the base frame disc 510, and the protruding portion or the component on the base frame disc 510 can be embedded into the corresponding hole or groove on the adjacent base frame disc 610 to achieve the purpose of mutual positioning; or the structures can be mutually convex-concave structures so as to mutually approach and be embedded to achieve the purpose of positioning.

Specifically, with reference to fig. 12 and 13, the upper and lower ends of the two sides of the pedestal pan 510 are respectively provided with a convex-concave structure (a convex positioning portion 512 and a concave positioning portion 513), and these convex-concave structures (the convex positioning portion 512 and the concave positioning portion 513) and the adjacent pedestal pan 510 are mutually closely embedded when being mounted and spliced so as to be mutually positioned, so that the ventilative LED display modules 500 of all pedestal pan structures on the display screen assembled and spliced by the pedestal pan 510 are mutually positioned accurately, and the accurate positions of all pixels on the screen are ensured.

In order to make the whole large screen have better flatness, more firm and convenient installation and simple and convenient disassembly, a guiding groove 514 for accommodating the cable rod 600 is further arranged on the protruding positioning part 512 for mutual embedding at the edge side of the base frame disc, the guiding groove 514 is an open groove type rather than a hole groove type, so that the cable rod 600 is easier to put in and convenient to install, meanwhile, the contact of the cable rod 600 and the groove wall of the guiding groove 514 can restrict the guiding groove 514 so as to restrict the base frame disc 510, similar to the fit of a shaft hole, the surface of the groove wall of the guiding groove 514 is always parallel to the surface of the cable rod 600, the plane of the base frame disc 510 can rotate around the cable rod 600 at one side as an axis, and the characteristic of forming an arc-shaped screen is also provided. When the base plate 510 is installed, the freely suspended and vertical cable bar 600 is received in the guide groove 514 of the protruding positioning part 512 on one side of the base plate 510 and pressed by the screw 515, and as shown in fig. 11, the cable bar 600 on the other side is received in the guide groove 514 of the protruding positioning part 512 on the other side of the base plate 510 and pressed by the screw 515, and when three points on the base plate 510 are guided by the vertical cable bar 600 and the guide groove 514, the base plate 510 is naturally restrained by the parallel cable bars 600 on both sides and faces the same. The adjacent protruding positioning part 512 of the left or right base frame disk 510 is embedded into the recessed positioning part 513 of the base frame disk 510 for positioning and is also guided by the cable 600 and is pressed and fixed by the screw 515, and the screw 515 beside the guide slot 514 is located outside the guide slot 514 (i.e. the corresponding screw hole 516 is also located outside the guide slot 514), so that the mounted cable 600 is always located inside each base frame disk 510, at this time, the screw 515 not only plays a role of pressing the cable 600, but also plays a role of blocking the cable 600 from sliding out of the guide slot 514 due to the deformation of the base frame disk 510, further ensuring firmness and reliability, because the stressed deformation of the base frame disk 510, which is a plane, is usually bent, the guide slots 514 on both sides have a tendency of reducing the distance, and at this time, the screw 515 can reliably block the cable 600 in the guide slot from sliding out, rather than relying on the friction force caused by the pressing action of the screw 515. When the display screen is assembled, only one ventilation LED display module 500 at any position on the large screen needs to be positioned, and then the ventilation LED display modules are sequentially installed through positioning and diffusion, the whole display screen achieves better flatness due to the fact that the cable rod 600 is guided and the convex-concave structure of the base frame disc 510 is embedded and positioned, complicated operations such as measurement, wire drawing and correction are not needed, the cable rod 514 is installed, the screws 515 are fastened, only front operation is needed, convenience and easiness are achieved, maintenance and replacement of any ventilation LED display module 500 do not affect adjacent ventilation LED display modules 500, only front operation is needed, and fig. 10 is a schematic hanging installation diagram of the ventilation LED display modules 500.

The positioning modes in the third embodiment and the fourth embodiment are all suitable for the base frame discs in the two embodiments, and the protruding positioning part can also be used as a part to be installed on the base frame disc during the production of the display module, and is selected according to the effectiveness, the installation mode, the manufacturing process and the cost. In order to facilitate the installation and fixation of the positioned base frame disc, the base frame disc is also provided with an installation hole, and the arrangement position is selected according to the installation mode, the universality, the manufacturing process and the cost.

The self-positioning base frame disk display module in the third embodiment and the fourth embodiment avoids the complex positioning measurement, alignment marking, mounting hole matching, various auxiliary fittings mounting and other work during mounting, so that when large-scale display screen mounting is implemented on the occasions such as building outer walls, building structures, tall and big towers, indoor ceilings, tunnel inner roofs and the like, the structure is simpler, time and labor are saved, the labor intensity of high-altitude operation is reduced, the construction efficiency and the safety are improved, and the self-positioning base frame disk display module is very suitable for application of fast assembly and fast disassembly.

The two types of pedestal trays in the third embodiment and the fourth embodiment have flexibility, and the LED pixel systems on the pedestal trays have flexibility, so that cables for hanging the pedestal trays do not need to have particularly high position precision, and can be overcome by deformation of the ventilation LED display module.

The first to fourth embodiments of the present invention are different screen bodies and modules, which form a background structure unit and a sunshade structure for improving the blackness of the screen, and can be used as alternatives according to the cost, the manufacturing process and the application scene, and at the same time, the structure is located in front of the screen (module), but does not block light emitted from the LED pixel lamp thereon, and still is one of the background structure units.

To sum up, for solving ventilative LED screen and not only avoiding strong wind to damage and subtract heavy simplification installation additional structure when equipment application on building outer wall, building structure, tall and big pylon, can possess the screen surface blackness height again and improve the screen contrast and make its difficult problem that can utilize under the sunshine, the utility model discloses a representative like grid display module assembly, dot matrix subassembly, bed frame disk module increase ventilative back of the body constitutional unit and light source sunshade structure in to ventilative LED screen mode realize, other ventilative LED screens also can solve above-mentioned problem through above-mentioned similar scheme. The utility model discloses increase the protrusion location portion and sunken location portion, lead positive groove isotructure of mutual location to the bed frame dish of bed frame disk module simultaneously and further solved its difficulty of equipment on using scenes such as building outer wall, building structure, tall and big pylon. The ventilating LED screen can be applied under the sunshine in the daytime, when the back bottom structure unit adopts materials and structures such as porous membrane cloth, fine shutter-shaped grids, baffles containing a large number of fine holes, semi-permeable materials and the like in the previous embodiments, residents in buildings behind the screen can have certain lighting and landscape effects, and the effects greatly improve the use value of the ventilating LED screen on the outer wall of the building, the building structure and the high and large tower occasions and save energy and reduce consumption.

The background section of the present invention may contain background information about the problems or environments of the present invention rather than describing the prior art by others. Accordingly, the inclusion in the background section is not an admission of prior art by the applicant.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific/preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. For those skilled in the art to which the invention pertains, a plurality of alternatives or modifications can be made to the described embodiments without departing from the concept of the invention, and these alternatives or modifications should be considered as belonging to the protection scope of the invention. In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "preferred embodiments," "example," "specific example," or "some examples" or the like 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, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope of the invention as defined by the appended claims.

Claims (10)

1. A ventilated LED display module is characterized by comprising an LED display module base body and a back bottom structure unit, wherein a plurality of ventilated parts are arranged on the LED display module base body, and the back bottom structure unit is connected to the LED display module base body and at least partially positioned at the ventilated parts for improving the background blackness of the LED display module base body; the back bottom structure unit is provided with a ventilating structure and/or can form a plurality of working positions, and the ventilating structure is arranged between the back bottom structure unit and the LED display module base body when at least one of the working positions can be formed.

2. The ventilated LED display module of claim 1, wherein the back structure unit is at least one of:

structure a: a porous membrane or porous cloth provided with a plurality of ventilation holes;

structure B: the baffle is provided with a louvered grating or a plurality of ventilation holes;

structure C: a loose-leaf baffle;

structure D: the air curtain consists of a fixed flap and a swinging flap;

structure E: and the LED display module matrix is integrally formed and filled in a sheet entity at the ventilation part, and a plurality of ventilation holes or shutter-shaped gratings are formed in the sheet entity.

3. The ventilated LED display module of claim 2, wherein the porous membrane or cloth in structure a, the baffle in structure B, the flap baffle in structure C, the curtain in structure D, and the sheet-like entity in structure E are each the same color as or darker than the color of the LED display module substrate.

4. The ventilated LED display module of claim 2, wherein one end of the flap panel of structure C is hingedly attached to the LED display module base and the flap panel is located at the ventilated portion, such that the flap panel can swing back and forth at the ventilated portion; the fixed flap in the structure D is fixedly connected to the LED display module base body, and the swinging flap is located at the ventilating portion.

5. The ventilated LED display module according to any one of claims 1 to 4 wherein the LED display module base comprises a support and a plurality of LED light source modules, the plurality of LED light source modules are respectively and fixedly connected to the support, each LED light source module is respectively connected with at least one LED pixel lamp, and a sunshade structure unit is arranged on the support and/or the LED light source modules.

6. The ventilated LED display module according to claim 5, wherein the sunshade structure unit adopts at least one of the following structures:

structure F: arranging a sun shield which is fixedly connected to the bracket and/or the LED light source module and is positioned above the LED pixel lamp;

structure G: arranging a sunshade eave which is correspondingly and fixedly connected above the LED pixel lamp;

structure H: the bracket and/or each LED light source module is arranged downwards, so that a sunshade structure unit is formed on each LED light source module.

7. A ventilated LED display screen, characterized by comprising at least one ventilated LED display module according to any one of claims 1 to 6.

8. The ventilated LED display screen of claim 7, wherein the LED display screen comprises a plurality of ventilated LED display modules and a plurality of cable rods, each LED display module substrate is of a pedestal disc type structure with a ventilating part formed by splicing the plurality of rods in an interlaced manner, the plurality of pedestal disc type LED display module substrates are spliced into a whole by the plurality of cable rods, and the LED display module substrates of each pedestal disc type structure are respectively provided with a plurality of LED pixel lamps in a connected manner.

9. The ventilated LED display screen of claim 8, wherein at least one protruding positioning portion is arranged at a side edge of the LED display module base body of each chassis disc type structure, the protruding positioning portion is used for being clamped and connected at a notch of a side edge of the LED display module base body of an adjacent chassis disc type structure, and the notch is located at a ventilated portion of the chassis disc type structure or a recessed positioning portion arranged at the side edge of the LED display module base body.

10. The ventilated LED display screen of claim 8, wherein at least one protruding positioning portion and at least one recessed positioning portion are respectively disposed at the side edges of the LED display module substrates of each base frame tray structure, wherein a guiding groove and a fastening hole are further disposed at the protruding positioning portion, and the corresponding protruding positioning portion and the corresponding recessed positioning portion are matched with each other when two adjacent LED display module substrates are spliced, wherein the guiding groove is used for accommodating the cable rod, and the cable rod is fixedly disposed in the guiding groove by a fastening member fixedly connected in the fastening hole.

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