CN111243450B

CN111243450B - LED display device and control method thereof

Info

Publication number: CN111243450B
Application number: CN201911367812.9A
Authority: CN
Inventors: 孙绪刚
Original assignee: Shanghai Lanmou Multimedia Technology Co ltd
Current assignee: Shanghai Lanmou Multimedia Technology Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2022-08-05
Anticipated expiration: 2039-12-26
Also published as: CN111243450A

Abstract

The invention relates to an LED display device and a control method thereof, wherein the device comprises: the LED lamp bead is mounted on the mounting rack; the mounting frame is pivoted to the supporting frame; a drive device; and the linkage mechanism is in driving connection with the mounting rack and the driving device respectively, and is used for keeping the actions of the mounting racks consistent through the actions of the driving device. The technical scheme provided by the invention can enable a user in a specific direction to clearly and completely watch the dynamic display effect of the LED display device, and has an energy-saving effect.

Description

LED display device and control method thereof

Technical Field

The invention relates to the technical field of display equipment, in particular to an LED display device and a control method thereof.

Background

Due to its excellent performance, LEDs have been widely used in the fields of lighting, display, and the like. In recent years, with the advent of LED ice screens, the applications of LEDs have been further expanded. According to different sizes, the LED ice screen can be used for brightening the landscape, for example, the LED ice screen is arranged on the outer vertical surface of a building, so that static luminescence can be realized, dynamic pictures can be displayed, and the method is equivalent to using the outer vertical surface of the building as a large-scale display panel. LED banks on the LED ice screen set up on structural framework, in order not to shelter from under the condition of building or other application backgrounds, still can realize better dynamic display effect, in the LED ice screen, the interval of each LED lamp pearl is great in the LED banks. However, since the structural frame is usually made of opaque materials such as aluminum alloy, the LED beads on the structural frame still cannot be seen from a specific angle, or the display effect of the LED ice screen cannot be seen from a specific angle, for example, a high-rise building merchant displays a dynamic picture mainly facing its customers on its outer facade at a specific time period, and a customer at a ground entrance may not see the display effect of its outer facade when watching the high-rise building.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an LED display device and a control method thereof.

On one hand, the invention provides an LED display device which comprises a mounting rack, wherein LED lamp beads are mounted on the mounting rack; the mounting frame is pivoted to the supporting frame; a drive device; and the linkage mechanism is in driving connection with the mounting rack and the driving device respectively, and is used for keeping the actions of the mounting racks consistent through the actions of the driving device.

On the basis of the technical scheme, the invention can be further improved as follows.

Further, it is a plurality of the mounting bracket is parallel to each other and equidistant setting.

Further, a plurality of LED lamp beads arranged on the mounting rack are distributed at equal intervals.

Further, when the mounting racks rotate, the lower surface of one of the two adjacent mounting racks above is suitable for being fitted with the upper surface of one of the two adjacent mounting racks below, or the distance between the lower surface of one of the two adjacent mounting racks above and the upper surface of one of the two adjacent mounting racks below is smaller than or equal to a preset distance.

Further, the mounting bracket comprises a pivot shaft arranged at the end part, and a pivot hole matched with the pivot shaft is arranged on the support frame.

Furthermore, the linkage mechanism comprises a driving mechanism and driven mechanisms matched with the mounting frames in number, each driven mechanism is in driving connection with the corresponding mounting frame, and the driving mechanism is in driving connection with all the driven mechanisms.

Further, the driving device is in driving connection with the mounting frame, or the driving device is in driving connection with the driving mechanism, or the driving device is in driving connection with the driven mechanism.

Further, the driving mechanism is a belt, and the driven mechanism is a flywheel.

Further, the driving mechanism is a chain, and the driven mechanism is a chain wheel.

Further, the driving mechanism is a rack, and the driven mechanism is a gear.

Further, the driving mechanism is a first connecting rod, and the driven mechanism is a second connecting rod.

Further, the mounting frame is driven by the driving device to act according to the light sensation information collected by the light sensor.

The LED display device provided by the invention has the beneficial effects that all the mounting frames can keep the same motion, such as the rotation in the same direction and amplitude, along with the action of the driving device through the driving device and the linkage mechanism, so that all the LED lamp beads are driven to rotate in the same direction and amplitude, the light emitting direction of the LED lamp beads relative to a user is adjusted, and the LED lamp beads are prevented from being shielded. According to the actual requirement, a user in a specific direction can clearly and completely view the dynamic display effect of the LED display device.

In another aspect, the present invention further provides a method for controlling an LED display device, for controlling the LED display device, including the following steps:

acquiring ambient illumination information;

and adjusting the brightness of the LED lamp beads according to the ambient illumination information, and/or controlling a driving device to adjust the rotation angle of the mounting frame relative to the support frame.

The control method of the LED display device has the advantages that the brightness of the LED lamp beads can be adjusted through the environment illumination information to ensure the definition of display contents, the rotation angle of the mounting frame or the LED lamp beads can be adjusted through the environment illumination information to shield partial luminous flux through the mounting frame, the influence on the display of the LED lamp beads is reduced, the brightness of the LED lamp beads is prevented from being improved, and the purpose of energy conservation is achieved.

Drawings

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

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

FIG. 2 is a schematic diagram of an LED display device in the prior art;

FIG. 3 is a schematic diagram of an LED display device according to an embodiment of the present invention;

FIG. 4 is a schematic enlarged view of a portion of an LED display device according to an embodiment of the present invention;

FIG. 5 is a schematic view of a linkage mechanism according to an embodiment of the present invention;

FIG. 6 is a schematic view of a linkage mechanism according to an embodiment of the present invention;

FIG. 7 is a schematic view of a linkage mechanism according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of an LED display device according to an embodiment of the present invention;

fig. 9 is a schematic diagram of an LED display device according to an embodiment of the invention.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

As shown in fig. 1, the display screen of present LED ice screen form includes structural framework and LED banks, and in order to guarantee intensity, structural framework is materials such as aluminum alloy usually, and it includes horizontal mounting bracket 1 and vertical support frame 2,

mounting bracket

1 and 2 fixed connection of support frame, and each LED lamp pearl 2 in the LED banks is arranged on mounting bracket 1 in array.

However, as shown in fig. 2, when the LED ice screen is viewed in a partial position, for example, at point E in fig. 2, only a part of the LED beads 1 can be viewed due to the shielding of the supporting frame 2, so that a complete dynamic picture cannot be viewed. If the dynamic picture is displayed by the high-rise building merchant on the outer vertical surface of the high-rise building merchant mainly facing the consumer in a specific time period, the display effect of the outer vertical surface of the high-rise building merchant may not be seen when the consumer at the ground entrance watches the high-rise building, and certain influence is caused on both the high-rise building merchant and the consumer.

As shown in fig. 3, an LED display device according to an embodiment of the present invention includes: the LED lamp comprises an installation frame 1, wherein an LED lamp bead 2 is installed on the installation frame 1; the mounting frame 1 is pivoted to the support frame 3; a drive device 4; and the linkage mechanism 5 is respectively in driving connection with the mounting rack 1 and the driving device 4, and the linkage mechanism 5 is used for enabling the actions of the mounting racks 1 to be consistent through the actions of the driving device 4.

In particular, in some application scenarios, the light emitting direction of the LED lamp bead 2 in the LED display device relative to the user needs to be adjusted. Support frame 3 does not move as fixed bearing structure, but drives mounting bracket 1 of pin joint on support frame 3 through drive arrangement 4 and rotates, and simultaneously, each mounting bracket 1 can carry out unanimous action through link gear 5, and all LED lamp pearls 2 that lie in on each mounting bracket 1 that also constitute LED banks can realize the synchronization adjustment for user's light-emitting direction.

In this embodiment, can make all mounting brackets 1 keep the same motion along with drive arrangement 4's action through drive arrangement 4 and link gear 5, for example the rotation of equidirectional and range, and then drive all LED lamp pearls 2 and carry out the rotation of equidirectional and range, adjust LED lamp pearl 2 for user's light-emitting direction, avoid being sheltered from. According to the actual requirement, a user in a specific direction can clearly and completely view the dynamic display effect of the LED display device.

Preferably, a plurality of the mounting brackets 1 are arranged in parallel and at equal intervals.

Specifically, the mounting bracket 1 is parallel to each other and the equidistant setting, that is to say each row of LED lamp pearl 2 evenly distributed in the LED banks, makes the LED banks more even on the whole, and the whole shows better with illuminating effect.

Preferably, the plurality of LED beads 2 mounted on the mounting bracket 1 are distributed at equal intervals.

Specifically, each LED lamp pearl 2 is the interval distribution, also is each row of LED lamp pearl 2 evenly distributed in the LED banks promptly, makes LED banks more even on the whole, and the whole shows better with illuminating effect.

Preferably, when the mounting rack 1 rotates, a lower surface of an upper one of two adjacent mounting racks 1 is adapted to fit with an upper surface of a lower one, or a distance between the lower surface of the upper one and the upper surface of the lower one is smaller than or equal to a preset distance.

Specifically, the mounting bracket 1 can be driven by the driving device 4 to rotate at different angles, for example, from the orientation shown in fig. 2 to the orientation shown in fig. 8 and 9. When rotating to the position that fig. 9 shows, when also being located the surface of mounting bracket 1 this moment on each LED lamp pearl 2, the distance between each mounting bracket 1 of upper and lower position is zero, also laminates each other from top to bottom, perhaps, the distance between the two is less than or equal to and predetermines the distance. Take LED display device to install on the facade of building as an example, because this type of building is glass curtain wall structure usually, the inside illumination of building and outside sunshine all probably influence LED lamp pearl 2 with the display effect when normal power is lighted, can carry out certain degree to external illumination through opaque mounting bracket 1 and shelter from.

Preferably, as shown in fig. 4, the mounting bracket 1 includes a pivot shaft 11 disposed at an end portion, and the support frame 3 is provided with a pivot hole 31 matching with the pivot shaft 11.

Specifically, the pivot shaft 11 may be disposed at two ends of the mounting frame 1, and may be cylindrical, and accordingly, the support frame 3 is provided with a pivot hole 31, and the pivot hole 31 may be a through hole or a blind hole. The pivot shaft 11 is inserted into the pivot hole 31 to pivot the mounting bracket 1 to the support bracket 3.

In the preferred embodiment, the pivot connection between the mounting frame 1 and the support frame 3 is realized by assembling the pivot shaft 11 and the pivot hole 31, so that the LED lamp beads 2 mounted on the mounting frame 1 can rotate along with the mounting frame 1, and the LED lamp beads 2 emitting light can be observed by a specific user in different application scenes, so that the user can completely watch a dynamic picture.

Preferably, the linkage mechanism 5 includes a driving mechanism 51 and a number of driven mechanisms 52 matched with the number of the mounting frames 1, each driven mechanism 52 is respectively in driving connection with the corresponding mounting frame 1, and the driving mechanism 51 is in driving connection with all the driven mechanisms 52.

Specifically, each mounting bracket 1 is in driving connection with a corresponding driven mechanism 52, and all the driven mechanisms 52 can be in driving connection with the driving mechanism 51. It should be noted that the two driving connections herein do not mean that the two are necessarily in contact, as long as the driving function is achieved. That is, the mounting bracket 1 may drive the driven mechanism 52 to move, or the mounting bracket 1 may drive the driven mechanism 52 to move, the driven mechanism 52 may drive the driving mechanism 51 to move, or the driven mechanism 52 may drive the driving mechanism 51 to move, the driving mechanism 51 may drive the mounting bracket 1 to move, or the driving mechanism 51 may drive the mounting bracket 1 to move, that is, the mounting bracket 1, the driving mechanism 51 and the driven mechanism 52 may follow each other.

In this preferred embodiment, when one mounting bracket 1 rotates, that is, when LED lamp bead 2 on this mounting bracket 1 rotates, through driving mechanism 51 and follower 52, can drive other mounting brackets 1 to realize the rotation of the same direction and range, that is, LED lamp bead 2 on other mounting brackets 1 can carry out the same action with aforementioned LED lamp bead 2.

Preferably, the driving device 4 is in driving connection with the mounting frame 1, or the driving device 4 is in driving connection with the driving mechanism 51, or the driving device 4 is in driving connection with the driven mechanism 52.

Specifically, the driving device 4 may be a motor-driven device such as a motor, or may be a device that can apply an external force by a person such as a force application handle. The driving device 4 can be in driving connection with the mounting rack 1, that is, the driving device 4 can directly drive a specific mounting rack 1 to act, and the mounting rack 1 drives other mounting racks 1 to act in accordance with the driving mechanism 51 and the driven mechanism 52; the driving device 4 can also be in driving connection with the driving mechanism 51, that is, the driving device 4 drives all the mounting frames 1 to perform the same action through the driving mechanism 51 and the driven mechanism 52; the driving device 4 can also be in driving connection with the driven mechanism 52, that is, the driving device 4 drives the mounting bracket 1 connected with the driven mechanism 52 to perform actions through the driven mechanism 52, and the driven mechanism 52 simultaneously drives the other driven mechanisms 52 and the mounting bracket 1 connected with the other driven mechanisms 52 to perform actions in a consistent manner through the driving mechanism 51.

It should be noted that fig. 3 is only an illustration of one embodiment, and the positions of the driving device 4 and the linkage 5 can be adjusted as required, as long as all the mounting frames 1 can keep the same action with the driving device 4 through the linkage 5.

In the preferred embodiment, the positional relationship between the driving mechanism 51 and the driven mechanism 52 of the driving device 4 and the linkage mechanism 5 and the mounting rack 1 can be adjusted according to actual requirements, so that the overall structural layout of the LED display device is more flexible, and the LED display device is applicable to more application scenarios.

Preferably, the driving mechanism 51 is a belt, and the driven mechanism 52 is a flywheel.

In particular, as shown in fig. 5, flywheels as the driven mechanism 52 may be connected to the mounting frame 1, e.g. the pivot shaft 11, the flywheels being connected by a belt. When the specific mounting bracket 1 of drive arrangement 4 drive rotates, the flywheel on this mounting bracket 1 also can rotate, and then drives the belt, and the belt can drive other flywheel rotations, and then drives the mounting bracket 1 of being connected with other flywheel respectively and takes place to rotate, makes other mounting brackets 1 and the action of above-mentioned specific mounting bracket 1 keep unanimous, just makes the action of all LED lamp pearls 2 keep unanimous.

It should be noted that the belt is a kind of transmission belt, and the material of the transmission belt can be rubber, fiber, etc.

Preferably, the driving mechanism 51 is a chain, and the driven mechanism 52 is a sprocket.

In particular, the principle of a chain-and-sprocket drive can also be represented in fig. 5, as shown in fig. 5, the sprockets as the follower 52 can be connected to the mounting frame 1, for example to the pivot shaft 11, the sprockets being connected by a chain. When drive arrangement 4 drives specific mounting bracket 1 and rotates, the sprocket on this mounting bracket 1 also can rotate, and then drives the chain, and the chain can drive other sprockets and rotate, and then drives mounting bracket 1 that is connected with other sprockets respectively and takes place to rotate, makes other mounting bracket 1 and above-mentioned specific mounting bracket 1's action keep unanimous, just makes all LED lamp pearl 2's action keep unanimous.

Preferably, the driving mechanism 51 is a rack, and the driven mechanism 52 is a gear.

Specifically, as shown in fig. 6, a gear as the driven mechanism 52 may be attached to the mounting bracket 1, for example, the pivot shaft 11, each gear being engaged with the rack gear. When the specific mounting bracket 1 of drive arrangement 4 drive rotated, the gear on this mounting bracket 1 also can rotate, and then drives the rack, and the rack can drive other gear revolve, and then drive respectively with other gear connection's mounting bracket 1 emergence rotation, make other mounting brackets 1 and above-mentioned specific mounting bracket 1's action keep unanimous, just make all LED lamp pearl 2's action keep unanimous.

Preferably, the driving mechanism 51 is a first connecting rod, and the driven mechanism 52 is a second connecting rod.

Specifically, as shown in fig. 7, a second link as the driven mechanism 52 may be connected to the mounting frame 1, for example, the pivot shaft 11 or the main body structure of the mounting frame 1, and each second link is hinged with the first link. When the specific mounting bracket 1 of drive arrangement 4 drive rotated, the second connecting rod of being connected with this mounting bracket 1 also can rotate, and then drives first connecting rod, and first connecting rod can drive other second connecting rods and rotate, and then drives the mounting bracket 1 of being connected with other second connecting rods respectively and take place to rotate, makes other mounting brackets 1 and above-mentioned specific mounting bracket 1's action keep unanimous, just makes the action of all LED lamp pearls 2 keep unanimous.

It should be noted that the linkage mechanisms in fig. 5 to 7 are only illustrated as partial embodiments, and the relative positions and connection relationships of the driving mechanism 51 and the driven mechanism 52 can be adjusted as required, as long as it is satisfied that all the mounting brackets 1 can keep the action consistent with the driving device 4 through the linkage mechanisms 5.

As shown in fig. 8, through the driving device 4 and the linkage mechanism 5, all the mounting frames 1 in the LED display device realize consistent actions, and drive all the LED lamp beads 2 to realize consistent actions, that is, to realize rotation in the same direction and amplitude. In a specific application scene, a user positioned below the LED display device can be enabled to clearly and completely see a dynamic picture displayed by the LED display device. In addition, taking an LED display device outside a building as an example, the LED display device usually includes a plurality of LED display devices, each LED display device is used as a display unit, when angle adjustment is needed, only the rotation angle of part of the LED display devices may be adjusted, or angle adjustment of different degrees may be performed on different LED display devices according to actual situations, for example, the adjustment angle range of the LED display device that is lower is larger, so as to achieve a better dynamic display effect for users facing a specific direction.

Preferably, the LED display device further includes a light sensor, and the driving device 4 is configured to drive the mounting frame 1 to operate according to the light sensation information collected by the light sensor.

Specifically, for example, when the LED display device is used in daytime, if sunlight is too strong, the dynamic picture cannot be clearly displayed due to the large distance between the LED beads on the LED display device. At this moment, according to the light sensation information collected by the light sensor, the controller controls the motor and other driving devices 4 to rotate, so as to drive the mounting frames 1 and the LED lamp beads 2 thereon to rotate, and reach the positions shown in fig. 9, namely, the upper edge and the lower edge of each mounting frame 1 are basically attached to each other, so that the rear backgrounds such as buildings are basically covered, and the light emitting display effect of the LED lamp beads 2 at the moment is clearer and more obvious.

Another embodiment of the present invention provides a method for controlling an LED display device, for controlling the LED display device, including the steps of:

and acquiring ambient illumination information.

Specifically, for example, the LED display device is mounted on a glass curtain wall of a building or a display glass show window, the ambient lighting information includes lighting intensity and a light source position, and the indoor or outdoor ambient lighting intensity can be collected by the light sensor and the ambient light source position can be obtained by derivation. If inside illumination is too strong, perhaps during the direct solar radiation, environment illumination intensity will be too big, and each mounting bracket 1 of LED display device can have certain clearance usually, and under environment illumination's influence, LED lamp pearl 2 can be not good because of the not enough display effect of luminance.

The accessible controller is handled, when LED lamp pearl 2 light intensity is less than illumination intensity, can directly adjust LED lamp pearl 2 luminance, also can control drive arrangement 4, drive all mounting bracket 1 through link gear 5 and take place to rotate, for example rotate to the position shown in figure 9 to the effect of sheltering from through mounting bracket 1 reduces luminous flux, realizes the reduction of LED display device transparency, thereby can avoid the luminance that improves LED lamp pearl 2 one, thereby reach energy-conserving purpose.

In this embodiment, can adjust LED lamp pearl 2's luminance through environment illumination information to guarantee the clarity of demonstration content, can also adjust mounting bracket 1 or to LED lamp pearl 2's turned angle through environment illumination information, with through mounting bracket 1 shielding part luminous flux, reduce the influence to LED lamp pearl 2 demonstration, avoid improving LED lamp pearl 2 luminance, in order to realize energy-conserving purpose.

The reader should understand that in the description of this specification, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example" or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the 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 embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. An LED display device, comprising:

the LED lamp comprises an installation frame (1), wherein LED lamp beads (2) are installed on the installation frame (1);

a support frame (3), the mounting frame (1) being pivoted to the support frame (3);

a drive device (4);

the linkage mechanism (5) is in driving connection with the mounting frames (1) and the driving device (4) respectively, and the linkage mechanism (5) is used for enabling the actions of the mounting frames (1) to be consistent through the actions of the driving device (4);

the LED lamp comprises a light sensor, a driving device (4) is used for driving the mounting rack (1) to act according to light sensation information collected by the light sensor, the brightness of the LED lamp beads (2) is suitable for being adjusted according to the light sensation information, when the brightness of the LED lamp beads (2) is lower than the ambient brightness indicated by the light sensation information, the driving device (4) is used for driving the mounting rack (1) to rotate, so that the lower surface of one of the two adjacent mounting racks (1) located above is suitable for being attached to the upper surface of one of the two adjacent mounting racks located below, or the distance between the lower surface of one of the two adjacent mounting racks located above and the upper surface of one of the two adjacent mounting racks located below is smaller than or equal to a preset distance.

2. The LED display device according to claim 1, wherein a plurality of the mounting frames (1) are arranged in parallel and at equal intervals.

3. The LED display device as claimed in claim 1, wherein the LED beads (2) mounted on the mounting frame (1) are distributed at equal intervals.

4. The LED display device as claimed in claim 1, wherein the mounting frame (1) comprises a pivot shaft (11) arranged at an end portion, and a pivot hole (31) matched with the pivot shaft (11) is arranged on the supporting frame (3).

5. The LED display device according to any one of claims 1 to 4, wherein the linkage mechanism (5) comprises a driving mechanism (51) and a number of driven mechanisms (52) matched with the number of the mounting frames (1), each driven mechanism (52) is in driving connection with the corresponding mounting frame (1), and the driving mechanism (51) is in driving connection with all the driven mechanisms (52).

6. The LED display device according to claim 5, wherein the driving device (4) is in driving connection with the mounting frame (1), or the driving device (4) is in driving connection with the driving mechanism (51), or the driving device (4) is in driving connection with the driven mechanism (52).

7. The LED display device according to claim 6, wherein the driving mechanism (51) is a belt, the driven mechanism (52) is a flywheel, or the driving mechanism (51) is a chain, or the driven mechanism (52) is a sprocket, or the driving mechanism (51) is a rack, and the driven mechanism (52) is a gear, or the driving mechanism (51) is a first link and the driven mechanism (52) is a second link.

8. An LED display device control method for controlling the LED display device according to any one of claims 1 to 7, comprising:

acquiring ambient illumination information;

and adjusting the brightness of the LED lamp beads (2) according to the ambient illumination information, and/or controlling a driving device (4) to adjust the rotation angle of the mounting frame (1) relative to the support frame (3).