CN114974051A

CN114974051A - Control method of LED display screen, LED display screen and electronic equipment

Info

Publication number: CN114974051A
Application number: CN202210477339.5A
Authority: CN
Inventors: 王定锋; 代宏信; 徐磊; 王晟齐; 徐文红
Original assignee: Tongling Guozhan Electronic Co ltd
Current assignee: Tongling Guozhan Electronic Co ltd
Priority date: 2022-03-04
Filing date: 2022-04-21
Publication date: 2022-08-30
Also published as: CN217822036U

Abstract

The invention discloses a control method of an LED display screen, the LED display screen and electronic equipment, wherein a control signal is obtained, the control signal controls a reciprocating swing mechanism to act to drive an LED module connected with the reciprocating swing mechanism to be linked, the LED module reciprocates in a direction parallel to the display surface of the display screen, the LED module connected with the reciprocating swing mechanism can display a video or an image in a reciprocating motion state, the visual persistence principle is ingeniously utilized, the resolution and definition of the image or video display of the LED display screen are greatly improved, the display picture is more exquisite, and one light spot is prevented from being generated in the display; under the condition of ensuring the same resolution, the number of the LED display units can be effectively reduced, the production cost of the LED display screen is greatly reduced, and under the condition of having the same LED display units, the LED display screen has higher resolution and definition, the rapid change of the complex picture can be easily displayed, and the consistency of the whole brightness of the display screen is realized.

Description

Control method of LED display screen, LED display screen and electronic equipment

Technical Field

The invention relates to the field of LED display screens, in particular to a control method of an LED display screen, the LED display screen and electronic equipment.

Background

With the development of society and the progress of science and technology, the LED display screen has been fully developed and widely applied, such as outdoor advertisement, indoor movie theaters, conference report halls, markets, commercial show windows and the like, which all need the use of the display screen, the application of the LED display screen greatly improves the visual impact and entertainment enjoyment of people, and also well transmits advertisement information for enterprise units in the field of commercial promotion. Compared with a liquid crystal display screen, the LED display screen has the advantages of being waterproof and applicable to indoor and outdoor, the spliced screen has no physical black edge and the like, and the use of the LED display screen obviously becomes a trend.

In the prior art, the LED display screen is mainly divided into a fixed display screen and a fan-blade display screen, and the fixed display screen is fixed after all accessories such as LEDs and circuit boards on the display screen are mounted, and the display screen is opened and used to display images or play videos when all accessories are completely fixed and in a static state. In order to improve the display effect and resolution requirement of a video image, the number of the LED lamp beads required to be used is very large, the cost is very high, and especially when a high-pixel high-definition display screen is made, for example, P2, that is, the horizontal and vertical center distances of the LED display units are all 2mm, the number of the LED display units required per square meter reaches 500 × 500 — 250000, so that the cost is very high; moreover, because the LED display unit emits light at a fixed position completely, but emits light in a non-motion state, even if the pixel points are very high, images or videos can still display one light spot, so that the appearance and the display effect are influenced, and the popularization and the use of the LED display screen are limited.

The fan blade type display screen is characterized in that a plurality of LED light bars replace fan blades of a fan, the LED light bars rotate at a high speed under the driving of a motor, and an image or video picture is generated by controlling LEDs on the light bars to emit light under the rotating state. In addition, because the fan blades display a circular video picture when rotating, under the rotating state, when the brightness of each LED is consistent, the brightness of the picture of the display screen far away from the axis is lower than that of the picture close to the axis, when the uniform brightness is controlled at each position of the display screen, the LED farthest from the axis needs to be controlled to be the maximum brightness, the brightness of each LED is gradually weakened towards the axis direction in sequence, the brightness of the LED at the axis is weakest, and the brightness of the LED is sacrificed when viewed on average as a whole, so that the brightness of the whole fan screen is very low. Moreover, when a square video picture needs to be displayed, the effective square part in the circle must be cut out for use, and the rest part wastes useless area. From the perspective of the pixel points, the display screen with the fan blades rotating around the axis hardly achieves the high consistency of each pixel point even if the display screen rotates.

Therefore, there is a need for improvements and optimizations to existing LED display screens.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a control method of an LED display screen, the LED display screen and an electronic device, which can display images or videos with low cost and high definition.

In a first aspect, an embodiment of the present invention provides a method for controlling an LED display screen, including:

the control signal is obtained, the control signal controls the reciprocating swing mechanism to act, the LED module connected with the reciprocating swing mechanism is driven to be linked, the LED module reciprocates in the direction parallel to the display surface of the display screen, and the LED module connected with the reciprocating swing mechanism can display videos or images in a reciprocating motion state.

The control method of the LED display screen according to the embodiment of the invention at least has the following beneficial effects: compared with the existing fixed display screen, the LED module is driven to be linked by controlling the reciprocating swing mechanism, the LED module performs reciprocating action in the direction parallel to the display surface of the display screen, so that the LED display unit moves on the plane to improve the coverage rate, the LED module connected with the reciprocating swing mechanism can display videos or images in a reciprocating motion state, the visual persistence principle is ingeniously utilized, the resolution and the definition of the images or video display of the LED display screen are greatly improved, the display picture is more exquisite, and one light spot or pixel point is prevented from being generated in the display process; or under the condition of ensuring the same resolution, the number of the LED display units can be effectively reduced, the production cost of the LED display screen is greatly reduced, and under the condition of ensuring the same number of the LED display units, the LED display screen has higher resolution and definition than a fixed display screen.

Compared with the existing fan blade type display screen, the consistency of the motion linear velocity of each LED display unit on the LED module connected with the reciprocating swing mechanism can be ensured, the display of rapidly-changed complex pictures is easily realized, the consistency of the overall brightness of the display screen can also be realized, and for square pictures with the most extensive requirements, the coverage area of each LED display unit is increased through movement, and the utilization rate is improved.

According to some embodiments of the invention, the LED display screen has an X direction and a Y direction, and the LED module reciprocates in the X direction; or the LED module reciprocates in the Y direction; or the LED module and the X direction form an angle theta to carry out reciprocating motion, and the angle theta is more than 0 degree and less than 90 degrees; or the LED modules move in the X direction and the Y direction in sequence, and the LED display units on the LED modules form a square-shaped movement track; or the LED module reciprocates in the X direction for a cycle and then reciprocates in the Y direction for a cycle, and the LED module is replaced in sequenceThe LED display unit on the LED display unit forms an L-shaped motion track; or the LED module reciprocates in the X direction for half cycle, then reciprocates in the Y direction for one cycle, then resets in the X direction and alternates in sequence, and an LED display unit on the LED module forms

A font motion trajectory.

According to some embodiments of the invention, the frequency of the reciprocating motion of the LED module is equal to or greater than 3 times/second.

In a second aspect, an embodiment of the present invention provides an LED display screen, including:

the LED module is provided with a plurality of LED display units;

the reciprocating swing mechanism is connected with the LED module and drives the LED module to reciprocate in a direction parallel to the display surface of the display screen;

and the control system controls the action of the reciprocating swing mechanism and the working state of the LED display unit so as to realize that the LED display unit displays images or videos in a state of keeping reciprocating motion.

The LED display screen provided by the embodiment of the invention at least has the following beneficial effects: the LED display screen is characterized in that the reciprocating swing mechanism is arranged, the reciprocating swing mechanism is connected with the LED module to drive the LED module to reciprocate in a direction parallel to the display surface of the display screen, so that the LED display unit moves on the plane to improve the coverage rate, the control system controls the reciprocating swing mechanism to move and the working state of the LED display unit to display images or videos while keeping reciprocating motion, the visual persistence principle is ingeniously utilized, the resolution and definition of image or video display of the LED display screen are greatly improved, the display picture is more exquisite, and one light spot or pixel point is prevented from being generated in display; or under the condition of ensuring the same resolution, the number of the LED display units can be effectively reduced, the production cost of the LED display screen is greatly reduced, and under the condition of ensuring the same number of the LED display units, the LED display screen has higher resolution and definition than a fixed display screen.

In addition, the LED display screen provided by the embodiment of the invention has a simple structure, the used reciprocating swing mechanism can be a conventional reciprocating swing mechanism, the purchasing is easy, the realization is convenient, the high-resolution display effect and the low-cost production and use are considered, the further popularization and the application of the LED display screen are facilitated, and the competitiveness of an enterprise is improved.

According to some embodiments of the invention, the display screen has an X direction and a Y direction, the LED display units are arranged in the XY direction in a horizontal-vertical manner, in the X direction, the horizontal center distance between two adjacent LED display units is a, in the Y direction, the vertical center distance between two adjacent LED display units is b, the LED module reciprocates in the X direction, and a is greater than or equal to b; or the LED module reciprocates in the Y direction, and b is more than or equal to a.

According to some embodiments of the present invention, the LED display units are arranged in position-aligned on two adjacent rows, and 4 adjacent LED display units form a layout in a shape of a Chinese character kou; or the LED display units are arranged on two adjacent rows in a staggered mode, and 3 adjacent LED display units form a 'pin' shaped layout.

According to some embodiments of the invention, the display screen has an X direction and a Y direction, the LED display units are arranged horizontally in the XY direction, and the LED modules reciprocate at an angle θ to the X direction, wherein 0 ° < θ < 90 °.

According to some embodiments of the invention, the display screen has an X direction and a Y direction, the LED display units are arranged in the XY direction in a horizontal and vertical manner, and the reciprocating swing mechanism is a bidirectional reciprocating swing mechanism that drives the LED module to reciprocate in the X direction and the Y direction.

According to some embodiments of the present invention, the LED modules sequentially move in the X direction and the Y direction, and the LED display unit forms a "square" shaped movement track; or the LED module reciprocates in the X direction for a cycle and then reciprocates in the Y direction for a cycle, and the cycle is alternated in sequence, and the LED display unit forms an L-shaped motion track; or the module reciprocates in the X direction for half cycle, then reciprocates in the Y direction for one cycle, then resets in the X direction, and alternates in sequence, and the LED display unit forms

A font motion trajectory.

According to some embodiments of the invention, the LED module further comprises a slide rail, and the LED module is arranged on the slide rail so as to realize the stable reciprocating action of the LED module.

According to some embodiments of the invention, the number of the LED modules is 1 or more, and the LED modules are directly mounted on the reciprocating swing mechanism; or the number of the LED modules is 1 or more, the LED module fixing device further comprises a support frame, the LED modules are fixed on the support frame, and the reciprocating swing mechanism is connected and installed with the support frame.

According to some embodiments of the invention, the device further comprises a driving component, and the driving component is connected with the reciprocating swing mechanism and drives the reciprocating swing mechanism to act.

According to some embodiments of the invention, the control system comprises a power supply, and one or more of a program control computer, a program controller, a program control card, and a program control element; the various components of the control system are integrated into a single device having a housing or are separate structures formed of multiple components interconnected together.

According to some embodiments of the invention, part of the program control elements of the control system is integrated on the LED module.

According to some embodiments of the present invention, the LED display units are LED lamp beads, and one LED lamp bead constitutes one LED display unit; or the LED display unit is an LED single-color chip, and one LED single-color chip forms one LED display unit; or the LED display units are bicolor chip groups, and each LED display unit consists of two chips emitting light with different colors; or the LED display units are three-color chip groups, and each LED display unit consists of three chips emitting light with different colors.

According to some embodiments of the present invention, the remote control system further comprises a remote controller, and the remote controller is wirelessly connected to the control system to realize remote control of the control system.

In a third aspect, an embodiment of the present invention provides an electronic device, which includes a housing and the LED display screen described in any embodiment of the second aspect.

The electronic equipment provided by the embodiment of the invention at least has the following beneficial effects: the electronic display equipment comprises an LED display screen, the LED display screen is provided with a reciprocating swing mechanism, the reciprocating swing mechanism is connected with the LED module to drive the LED module to reciprocate in the direction parallel to the display surface of the display screen, so that the LED display unit moves on the plane to improve the coverage rate, the control system controls the reciprocating swing mechanism to move and the working state of the LED display unit, the LED display unit displays images or videos in a reciprocating motion state, the visual persistence principle is ingeniously utilized, the resolution and definition of image or video display of the LED display screen are greatly improved, the displayed images are more delicate, and one light spot or pixel point is prevented from being displayed; or under the condition of ensuring the same resolution, the number of the LED display units can be effectively reduced, the production cost of the LED display screen is greatly reduced, and under the condition of ensuring the same number of the LED display units, the LED display screen has higher resolution and definition than a fixed display screen.

Moreover, the electronic equipment provided by the embodiment of the invention has a simple structure, the used reciprocating swing mechanism can be a conventional reciprocating swing mechanism, the purchasing is easy, the realization is convenient, the display effect of high resolution and the production and use of low cost are considered, the further popularization and application of the electronic equipment with the LED display screen are facilitated, and the competitiveness of enterprises is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an LED module according to an embodiment of the invention;

FIG. 2 is a schematic diagram of an LED display unit according to an embodiment of the present invention, wherein the motion trajectory is in the shape of a Chinese character 'kou';

FIG. 3 is a schematic diagram of an LED display unit according to an embodiment of the present invention, in which the motion locus is L-shaped;

FIG. 4 shows the movement locus of the LED display unit according to the embodiment of the present invention

A schematic of a glyph;

FIG. 5 is a schematic plan view of an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an LED display unit of an embodiment of the invention, which is an RGB lamp bead;

FIG. 7 is a schematic diagram of an LED module structure according to an embodiment of the present invention (the LED display unit is an RGB light source chip);

FIG. 8 is a schematic view of the backside structure of FIG. 7;

FIG. 9 is a schematic structural diagram of a reciprocating swing mechanism according to an embodiment of the present invention;

FIG. 10 is a schematic view of the alternative angular configuration of FIG. 9;

FIG. 11 is another structural diagram of the reciprocal swinging mechanism according to the embodiment of the present invention;

FIG. 12 is a schematic view of the alternative angular configuration of FIG. 11;

FIG. 13 is another structural diagram of the reciprocal swinging mechanism of the embodiment of the present invention;

FIG. 14 is a schematic structural diagram of a supporting frame according to an embodiment of the present invention;

FIG. 14-1 is a schematic structural view of an LED module mounted on a support frame according to an embodiment of the present invention;

FIG. 15 is an enlarged view of a portion of FIG. 1;

FIG. 16 is a schematic structural diagram of an LED display unit of an embodiment of the present invention in a staggered arrangement;

fig. 17 is another schematic structural diagram (X-direction reciprocating motion) of the LED display unit in the embodiment of the invention when the LED display units are arranged in a staggered manner;

fig. 18 is another schematic structural view (Y direction reciprocating motion) of the LED display units in the embodiment of the present invention when they are arranged in a staggered manner;

FIG. 19 is a schematic structural diagram of a bidirectional reciprocating oscillating mechanism of an embodiment of the present invention;

FIG. 20 is a schematic cross-sectional view of a bi-directional reciprocating swing mechanism of an embodiment of the present invention;

FIG. 21 is a schematic structural diagram of an embodiment of the present invention capable of performing Z-direction motion.

Reference numerals are as follows:

the reciprocating swing mechanism 1, a rotating wheel 11, an eccentric shaft 12, a swing rod 13, a ring groove 131, a guide piece 14, a hinge rod 15, a linear motor 16, an output shaft 161, a sliding table 17, a guide rail 171 and a mounting seat 18;

the LED display device comprises an LED module 2, an LED display unit 21, an LED light source chip 211 and a control chip 212;

a control system 3, a power supply 31 and a program controller 32;

a slide rail 4, a slider 41;

a support frame 5;

a drive motor 6;

a vertical drive mechanism 7.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to the orientation description, such as the upper, lower, front, rear, left, right, inner, outer, etc., is the orientation or positional relationship shown on the drawings, only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If there is a description of first and second for the purpose of distinguishing technical features only, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.

In the description of the present invention, unless otherwise expressly limited, the terms set, mounted, connected, assembled, matched, etc. should be construed broadly, and those skilled in the art can reasonably determine the meaning of the terms in the present invention by combining the detailed contents of the technical solutions.

The following provides many different embodiments, or examples, for implementing the methods, structures, and methods of the present invention.

The LED display screen is composed of 1 or a plurality of LED modules, each LED module comprises a plurality of LED display units, each LED display unit can be called as 1 pixel point, under the same display area, the pixel density is larger, the resolution ratio is larger, and the display picture is finer and smoother. Due to the fact that the space exists between every two adjacent LED display units, the traditional fixed display screen can see one pixel point, the resolution ratio of the LED display screen is influenced, the existence of the space of the pixel points can also influence the viewing distance, the lower the resolution ratio is, the viewing effect can be ensured only by the need of the longer viewing distance, and if the distance is viewed at a close distance, one pixel point can be seen; for example, in order to improve the display resolution and definition, the display is generally implemented by reducing the interval between the pixels, but this has the consequence that more pixels are required, and the cost is increased accordingly.

Based on this, the embodiment of the first aspect of the present invention provides a method for controlling an LED display screen to reduce or eliminate the influence of the pixel pitch on the display screen, including obtaining a control signal, where the control signal controls the reciprocating swing mechanism 1 to act to drive the LED module 2 connected to the reciprocating swing mechanism 1 to link, and the LED module 2 reciprocates in a direction parallel to the display surface of the display screen, so that the LED module 2 connected to the reciprocating swing mechanism 1 can display a video or an image while maintaining the reciprocating motion.

The display surface of the display screen means: when a video or image picture is viewed, the direction of the head-up display screen is the Z direction, a plane perpendicular to the Z direction is called a display plane, and taking fig. 1 as an example, a plane on which a paper plane is located is a display plane.

It can be understood that "the LED module 2 connected to the reciprocating swing mechanism 1 is driven to move in a reciprocating manner, and the LED module 2 reciprocates in a direction parallel to the display surface of the display screen" does not limit the LED module to reciprocate only in a direction parallel to the display surface, but means that the driving force provided by the reciprocating swing mechanism 1 to the LED module 2 is parallel to the display surface, and the reciprocating swing mechanism 1 pushes the LED module 2 to move in a direction parallel to the display surface, as shown in fig. 1, the LED display screen is a square display screen, and the directions parallel to the frame of the display screen are the X direction and the Y direction, and the moving direction of the LED module 2 may be the single X-axis direction or the Y-axis direction shown in fig. 1, or may be the direction inclined to the X axis or the Y axis, or may be the direction of the X axis and the Y axis to move synchronously or sequentially and alternately, therefore, the reciprocating swing mechanism 1 may be referred to as an XY-direction reciprocating swing mechanism. For example, as shown in fig. 21, the display screen is provided with a vertical driving mechanism 7 and a reciprocating swing mechanism 1 (which is shielded by the vertical driving mechanism 7 and is invisible), the vertical driving mechanism 7 drives the LED module to move in the Z direction, although the LED module finally shows a compound motion in a three-dimensional space, in terms of the reciprocating swing mechanism 1, the direction of driving the LED module to move is still parallel to the display surface (XY surface formed by the X direction and the Y direction) of the display screen.

It can be understood that the control signal controls the reciprocating swing mechanism 1 to act to drive the LED modules 2 connected to the reciprocating swing mechanism 1 to link, which does not mean that all the LED modules of the display screen are necessarily connected to the reciprocating swing mechanism 1, i.e. it is not limited that all the LED display units are necessarily in a moving state. According to application requirements, for a plurality of LED modules of the display screen, a part of the LED modules are allowed to be fixedly installed, the other part of the LED modules are connected with the reciprocating swing mechanism 1, and the movement of the LED modules connected with the reciprocating swing mechanism 1 is controlled by a control signal, for example, the LED modules arranged on the periphery or the edge of the display screen can be allowed to be fixedly installed to form the effect of decorating a frame.

It is understood that the LED module 2 connected to the reciprocal swing mechanism 1 can display video or images while maintaining the reciprocal movement, and does not mean that the LED module 2 can only display video or images while maintaining the reciprocal movement, and in the case where the reciprocal swing mechanism 1 does not operate, the LED module 2 is still allowed to light up to display video or images. The reciprocating swing mechanism 1 can be selectively started or not started according to the requirements of a display picture or the requirements of a control system, if the application occasion without special requirements on the display picture allows the reciprocating swing mechanism not to act, and the display screen becomes a traditional display screen to display the picture; in a scene with high requirements on resolution or definition, the reciprocating swing mechanism 1 is enabled to act through program control setting to drive the LED module to reciprocate, so that the LED module 2 connected with the reciprocating swing mechanism 1 can display videos or images in a reciprocating motion state.

The embodiment of the first aspect of the invention skillfully utilizes the principle of persistence of vision, greatly improves the resolution and definition of image or video display of the LED display screen, and avoids generating a bad display effect of one light spot/pixel point; under the condition of ensuring the same resolution, the interval between the LED display units 21 can be increased, the number of the LED display units 21 is effectively reduced, the production cost of the LED display screen is greatly reduced, and under the condition of having the same number of the LED display units 21, the LED display screen has higher resolution and definition than a fixed display screen, and a display picture is more exquisite. In the embodiment of the first aspect of the invention, the consistency of the linear motion speed of each LED display unit 21 on the LED module 2 connected with the reciprocating swing mechanism 1 is easy to realize the display of complex pictures with rapid change and the consistency of the overall brightness of the display screen, and for square pictures with the most extensive requirements, the coverage area of each LED display unit is increased by moving, so that the utilization rate is increased.

In some embodiments of the first aspect of the present invention, the frequency of the reciprocating motion of the LED module is 3 times, and after the LED display unit is lit, the reciprocating motion of the LED display unit can form a continuous picture, and the spark can be waved to form various shapes when the principle is the same as waving a handheld firework; in other embodiments, the frequency of the reciprocating motion of the LED module is 12 times/second, and in other specific embodiments, the frequency of the reciprocating motion of the LED module is 13 times/second. During the reciprocating motion of the LED module, once to and fro is called once, in a frequency, each LED display unit returns to the original position again, for example, the LED display unit 21 reciprocates in the X-axis direction, the coordinate of one LED display unit 21 is (1, 1), and after one reciprocating motion, the coordinate of the LED display unit 21 is still (1, 1). When the reciprocating frequency of the LED module is more than or equal to 12 times/second, the continuity of the display picture can be better realized.

In some embodiments of the first aspect of the present invention, the LED module 2 reciprocates in the X direction; in other embodiments, the LED module 2 reciprocates in the Y direction; in other embodiments, the LED module 2 reciprocates at an angle theta to the X direction, wherein theta is greater than 0 degrees and less than 90 degrees; in other embodiments, the LED modules sequentially move in the X direction and the Y direction, and as shown in fig. 2, the LED display units 21 on the LED modules 2 form a "square" shaped movement track; in other embodiments, see the figures3, the LED modules reciprocate in the X direction for a cycle and then reciprocate in the Y direction for a cycle, and the LED display units 21 on the LED modules 2 are sequentially alternated to form an L-shaped motion track; in other embodiments, as shown in fig. 4, the LED module reciprocates in the X direction for half a cycle, then reciprocates in the Y direction for a cycle, and then resets in the X direction and alternates in sequence, and the LED display units 21 on the LED module 2 are formed

A font motion trajectory.

An embodiment of a second aspect of the present invention provides an LED display screen, as shown in fig. 5, including an LED module 2, wherein a plurality of LED display units 21 are disposed on the LED module 2; the reciprocating swing mechanism 1 is used for being connected with the LED module 2 and driving the LED module 2 to reciprocate in a direction parallel to the display surface of the display screen; and the control system 3 controls the action of the reciprocating swing mechanism 1 and the working state of the LED display unit 21 so as to realize that the LED display unit 21 displays images or videos in a reciprocating motion state.

It will be appreciated that the construction of the LED display unit is not exclusive. In some specific embodiments, as shown in fig. 1 to 4, the LED display unit 21 may be an LED lamp bead, and one LED lamp bead constitutes one LED display unit, and the LED lamp bead may be a lamp bead displaying a single color, a bi-color lamp bead, or an RGB lamp bead, as shown in fig. 6. In some specific embodiments, as shown in fig. 16, the LED display units 21 are a three-color chip set, and each LED display unit is composed of R, G, B three chips emitting light of different colors, referred to as RGB light source chips for short. In some specific embodiments, the LED display units 21 are LED single-color chips, and one LED single-color chip constitutes one LED display unit, and the LED single-color chip may be an R chip (red light source chip), a G chip (green light source chip), or a B chip (blue light source chip), and the LED display units 21 on the LED module may be partially R chips, partially G chips, and partially B chips. In some specific embodiments, the LED display units 21 are two-color chip sets, each LED display unit 21 is composed of two chips emitting light of different colors, and 2 chips in each LED display unit are a combination of an R chip and a G chip, or a combination of an R chip and a B chip, or a combination of a B chip and a G chip, where the R chip, the G chip, and the B chip respectively represent a red light source chip, a green light source chip, and a blue light source chip.

The manufacturing method of the LED module is numerous, and in some specific embodiments, as shown in fig. 1, the LED lamp beads are welded on the circuit board to form an integral LED module; in some specific embodiments, the LED lamp bead and the control chip are soldered on the circuit board to form an LED module, wherein the control chip forms a part of the control system, as shown in fig. 5, a plurality of LED modules 2 are arranged side by side and assembled on the support frame 5, and a plurality of LED modules 2 can also be assembled on the support frame 5 in a close-fitting manner; in some specific embodiments, an LED light source chip, a control chip and a capacitor are packaged on an LED support to form an integrated LED lamp bead, and then the integrated LED lamp bead is welded on a circuit board or a wire to form an LED module, a plurality of LED modules are arranged side by side or are assembled on a support frame in close proximity, wherein the control chip forms a part of a control system; in some specific embodiments, an LED light source chip, a control chip, a capacitor, and the like are packaged on a circuit board to form an LED module, and a plurality of LED modules are arranged side by side or assembled on a support frame in close proximity, wherein the control chip forms a part of a control system; in some specific embodiments, as shown in fig. 7 and 8, the LED light source chip 211 is packaged on the front surface of the circuit board, the control chip 212 is soldered on the back surface of the circuit board to form a strip-shaped LED module, and a plurality of LED modules are arranged side by side or assembled together closely on the support frame, wherein the control chip 212 forms a part of the control system.

In some embodiments of the second aspect of the present invention, referring to fig. 9-10, the reciprocating swing mechanism 1 includes a rotating wheel 11, an eccentric shaft 12 is disposed on a radial surface of the rotating wheel 11, a swing rod 13 is sleeved on the eccentric shaft 12, an annular groove 131 is disposed on the swing rod 13 and is matched with the eccentric shaft 12, a direction of the annular groove 131 is perpendicular to a swing direction of the swing rod 13, two ends of the swing rod 13 are connected in a guide 14, the eccentric shaft 12 drives the swing rod 13 to swing back and forth on the guide 14 along with rotation of the rotating wheel 11, and the reciprocating swing mechanism 1 is connected with the LED module 2 through the swing rod 13 to drive the LED module 2 to reciprocate in an X direction.

In some embodiments of the second aspect of the present invention, referring to fig. 11-12, the reciprocating swing mechanism 1 includes a rotating wheel 11, an eccentric shaft 12 is disposed on a radial surface of the rotating wheel 11, a hinge rod 15 is hinged on the eccentric shaft 12, the other end of the hinge rod 15 is hinged with a swing rod 13, the other end of the swing rod 13 is connected in a guide 14, the eccentric shaft 12 drives the swing rod 13 to swing back and forth in the guide 14 in the X direction along with the rotation of the rotating wheel 11, and the reciprocating swing mechanism 1 is connected with the LED module 2 through the swing rod 13 to drive the LED module 2 to move back and forth in the X direction.

In some embodiments of the second aspect of the present invention, referring to fig. 13, the reciprocating swing mechanism 1 includes a linear motor 16, an output shaft 161 of the linear motor 16 is connected with a sliding table 17, a bottom of the sliding table 17 is a guide rail 171, the sliding table 17 is used for fixing the LED module 2, the LED module 2 is driven to reciprocate in the X direction by the sliding table 17, and the sliding table 17 may also be replaced by a plurality of sliding blocks.

In some specific embodiments, in order to ensure the smooth and accurate reciprocating motion of the LED module 2, a sliding rail 4 is provided, as shown in fig. 5, the bottom of the LED module 2 is mounted on the sliding rail 4 through a sliding block 41, so as to prevent the display frame of the LED module 2 from shaking during the reciprocating motion, and as shown in fig. 13, the guide rail 171 is equivalent to a sliding rail. Of course, in some specific embodiments, the sliding rail 4 is not necessary, and as shown in fig. 9 to 11, the presence of the guide 14 can already ensure the swinging rod 13 to perform accurate and smooth reciprocating motion, and the LED module 2 can be directly and fixedly connected with the swinging rod 13 without providing a special sliding rail, and especially for a small-screen display screen with a small area, the size and weight are relatively small, and the sliding rail is allowed to be omitted.

In some specific embodiments, considering that there may be a plurality of LED modules, a support frame 5 may be provided, and the LED modules are arranged and fixed by using the support frame 5, so that the LED modules are more firmly and reliably mounted, as shown in fig. 5, the LED modules are a plurality of LED modules and fixed on the support frame 5, as shown in fig. 14-1, the LED modules include 4 LED modules which are abutted together and fixedly spliced on the support frame 5, and for a large LED display screen, a plurality of LED modules are generally spliced to form a large screen; the LED module 2 is fixedly connected with the reciprocating swing mechanism 1 through a support frame 5, and the reciprocating swing mechanism 1 drives the LED module to be linked through the support frame 5. The support frame 5 can be made into a grid support frame by laser cutting of a light-transmitting PC resin material plate, as shown in FIG. 14; the support frame 5 can also be made of PC resin materials to fix the screw holes of the LED modules, the LED modules 2 are fixedly connected with the screw holes through screws, and the support frame made in the way can be used for LED display screens with two-side display; the support frame 5 can also be made of steel bars by welding to form a lightproof support frame. After the support frame is prepared, the support frame 5 is connected with the reciprocating swing mechanism 1 in a bonding mode or in other modes such as screw connection or riveting.

In some embodiments of the second aspect of the present invention, and as shown in figures 1 and 15, the display screen has an X-direction and a Y-direction, the LED display units 21 are arranged in a horizontal and vertical manner in the XY-direction, in the X direction, the horizontal center distance between two adjacent LED display units 21 is a, in the Y direction, the vertical center distance between two adjacent LED display units 21 is b, the LED module 2 reciprocates in the X direction, at the moment, a is more than or equal to b, wherein a-b is the conventional layout of the LED display unit, due to the existence of the reciprocal swing mechanism 1 in this embodiment, the visibility of one pixel point when displaying a picture caused by the existence of the interval a is reduced or overcome, through reciprocating swing, 2 pixel points are not formed between two LED display units 21 adjacent in the transverse direction (X direction), but a continuous picture is formed, and the fineness and the resolution of the displayed picture can be improved; the arrangement mode of a > b obviously reduces the number of the LED display units 21 in the transverse direction (X direction), reduces the production cost of the LED display screen, and meets the requirements of the industry on the resolution and low cost of the picture display. On the contrary, the LED module 2 can also reciprocate in the Y direction, as shown in FIG. 18, at this time b is greater than or equal to a, and the principle is the same as above, and will not be described again.

In some embodiments of the second aspect of the present invention, as shown in fig. 1 and fig. 15, the LED display units 21 are arranged in two adjacent rows at opposite positions, and the adjacent 4 LED display units 21 form a "square" layout, that is, four LED display units adjacent to each other in a horizontal and vertical direction are in a "square" layout, for easy understanding, the four LED display units 21 in fig. 15 are selected and indicated by dotted lines to show their outline clearly, and the "square" layout is a conventional layout manner of the LED display screen industry, although the reciprocating swing mechanism 1 is added in this embodiment, it is not necessary to adjust the conventional layout of the LED display units, and thus, the requirements of ensuring the definition of the picture and reducing the cost can be achieved.

In some specific embodiments, as shown in fig. 16, each LED display unit 21 is composed of RGB triplets, the LED display units 21 are arranged in a staggered manner in two adjacent rows, and 3 adjacent LED display units 21 form a "pin" layout, that is, 3 LED display units adjacent to each other in the horizontal and vertical directions are in the "pin" layout, and for convenience of understanding, the outline of the LED display unit 21 is illustrated by a dotted line in fig. 16 for 3 LED display units 21 adjacent to each other in the horizontal and vertical directions. In some specific embodiments, as shown in fig. 17 to 18, each LED display unit 21 is an RGB lamp bead, the LED display units 21 are arranged in a staggered manner in two adjacent rows, and 3 adjacent LED display units 21 form a "pin" shaped layout, that is, 3 LED display units adjacent in the horizontal and vertical directions are in the "pin" shaped layout, for convenience of understanding, the outline of the LED display unit 21 is illustrated by a dotted line in the LED display units 21 selected from fig. 17 to 18, where 3 LED display units 21 adjacent in the horizontal and vertical directions are adjacent in the dotted line; in the embodiment shown in FIGS. 16 and 17, a ≧ b. In contrast to the conventional layout (aligned layout) of the LED display unit 21, by the inventive layout of the LED display unit 21 in a staggered manner in the present embodiment, so that the LED display units arranged in a staggered manner (the LED display unit located on the right side among the dashed outline LED display units in fig. 16 and 17) make up for the distance between the two LED display units 21 on the left side in the Y direction, even if the LED module 2 only swings back and forth in the X direction, the problem of obvious picture display pixel points caused by the interval between adjacent LED display units in the Y direction can be well reduced or eliminated, the display fineness and the definition of the whole display picture in the X direction and the Y direction, namely the whole picture can be well improved, the resolution ratio is high, under the condition of ensuring the same resolution, the number of the LED display units 21 can be reduced in the X direction and the Y direction, and the manufacturing cost of the LED display screen is well reduced.

In some embodiments of the second aspect of the present invention, referring to fig. 1, the LED display screen has an X direction and a Y direction, the LED display units are horizontally and vertically arranged in the XY direction, the LED module and the X direction form an angle θ to perform a reciprocating motion, where θ is greater than 0 ° and less than 90 °, and the reciprocating motion can be decomposed into an X direction reciprocating motion and a Y direction reciprocating motion, that is, the influence of the existence of the distance between adjacent LED display units 21 in the X direction and the distance between adjacent LED display units in the Y direction on the display screen is compensated, which is beneficial to improving the overall fineness and resolution of the display screen, and can also effectively reduce the number of LED display units 21 and reduce the production cost.

In some embodiments of the second aspect of the present invention, the display screen has an X direction and a Y direction, the LED display units 21 are arranged in the XY direction in a horizontal and vertical manner, as shown in fig. 19 and fig. 20, the reciprocating swing mechanism 1 is a bidirectional reciprocating swing mechanism, and drives the LED module 2 to reciprocate in the X direction and the Y direction, specifically, the reciprocating swing mechanism 1 includes a horizontal reciprocating swing mechanism and a longitudinal reciprocating swing mechanism disposed on the horizontal reciprocating swing mechanism, and the LED module 2 is connected and fixed on the longitudinal reciprocating swing mechanism; the transverse reciprocating swing mechanism comprises a linear motor 16 and an output shaft 161 connected with the linear motor 16, the longitudinal swing mechanism is mounted on the output shaft 161 of the transverse reciprocating swing mechanism through a mounting seat 18, the longitudinal reciprocating swing mechanism also comprises the linear motor 16 and the output shaft 161, in order to facilitate mounting and fixing the LED module 2, a sliding table 17 is arranged on the output shaft 161 of the longitudinal reciprocating swing mechanism, and guide rails 171 are arranged on the transverse reciprocating swing mechanism and the longitudinal reciprocating swing mechanism to ensure the reciprocating precision and stability of the LED module 2. This embodiment is through setting up two-way reciprocal swing mechanism, and the drive LED module all makes reciprocating motion in X direction and Y direction, has compensatied the influence of the existence of adjacent LED display element 21 interval in X direction and the interval in the Y direction to the display screen simultaneously, is favorable to improving the whole fineness and the resolution ratio of display screen, also can effectual reduction LED display element quantity's use, reduction in production cost. In other embodiments, the transverse reciprocating oscillating mechanism and the longitudinal reciprocating oscillating mechanism can use the reciprocating oscillating mechanism shown in fig. 9-12, and can also use other reciprocating oscillating mechanisms not mentioned above.

In some embodiments of the second aspect of the present invention, the LED modules 2 sequentially move in the X direction and the Y direction, and the LED display unit 21 forms a "square" shaped movement track, as shown in fig. 2; in some embodiments, the LED display unit 21 reciprocates in the X direction for a cycle and then reciprocates in the Y direction for a cycle, and the cycles are sequentially alternated, so that the LED display unit 21 forms an "L" shaped motion track, as shown in fig. 3; in some embodiments, the LED display unit is reciprocated in the X direction for half a cycle, then reciprocated in the Y direction for a cycle, and then reset in the X direction, and sequentially alternated, and the LED display unit 21 is formed

The font motion trajectory is shown in fig. 4.

In some embodiments of the second aspect of the present invention, there is a driving component 6 (as shown in fig. 5), in some specific embodiments, the driving component is a motor, the motor is connected to the reciprocating swing mechanism 1, and drives the reciprocating swing mechanism 1 to move, as shown in fig. 9-12, the motor is connected to the rotating wheel 11, and drives the rotating wheel 11 to move, and the motor may be configured in the LED display screen by an LED display screen manufacturer, or may be connected after being purchased by a user. In other embodiments, there is no drive assembly, as shown in fig. 13 or 19, and the reciprocating swing mechanism itself has a drive assembly without an additional drive assembly.

In some embodiments of the second aspect of the present invention, the control system 3 includes a power supply 31, and one or more of a program control computer, a program controller, a program control card, and a program control element, and in some embodiments, as shown in fig. 5, the control system 3 includes a power supply 31 and a program controller 32, and the control system 3 is a split structure formed by 2 components of the power supply 31 and the program controller 32 which are interconnected together. In other embodiments, the components of the control system are integrated into a device with a housing (not shown), which facilitates storage and saves space. In other embodiments, the program controller or/and the program control card or/and the program control element may be disposed on the LED module, or disposed on the reciprocating oscillating mechanism 1, or external. The control system controls the action of the reciprocating swing mechanism 1 and also controls the working state of the LED display unit 21, it can be understood that controlling the working state of the LED display unit 21 means controlling part or all of the LED display units 21 to be turned on or off according to the picture requirements of an image or video, in the turned-on LED display unit 21, the brightness and the light-emitting color of different LED display units 21 may be different due to different pixel point positions of the image or video according to the image or video requirements, even if the same LED display unit 21 can be changed between the turned-on state and the turned-off state or between different brightness and light-emitting color along with the playing of the image or video, several LED display units 21 cooperate together to present a required image or video picture, that is, controlling the working state of the LED display unit 21 means controlling the LED display unit 21 according to the picture requirements of the image or video, the lighting or turning off of the LED display unit 21 at any time reciprocating to any position, and the brightness and color at the lighting are controlled.

In some specific embodiments, part of the program control elements of the control system 3 are integrated on the LED module, as shown in fig. 8, the control chip 212 is soldered on the back of the circuit board, so as to fully utilize the space of the LED module and facilitate the manufacturing of the LED module and the control system.

In some embodiments of the second aspect of the present invention, a remote controller (not shown in the drawings) is further included, and the remote controller is wirelessly connected to the control system 3 to implement remote control of the control system 3, so as to facilitate user operation.

Some embodiments of the third aspect of the present invention provide an electronic device, which includes a housing (not shown) and the LED display screen of any of the embodiments of the second aspect.

It will be appreciated that the housing may also be referred to as a frame or frame.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A control method of an LED display screen is characterized by comprising the following steps:

2. The control method of the LED display screen according to claim 1, wherein: the LED display screen is provided with an X direction and a Y direction, and the LED module reciprocates in the X direction; or the LED module reciprocates in the Y direction; or the LED module and the X direction form a theta angle to carry out reciprocating motion, and theta is larger than 0 degree and smaller than 90 degrees; or the LED modules move in the X direction and the Y direction in sequence, and the LED display units on the LED modules form square movement tracks; or the LED module reciprocates in the X direction for a cycle and then reciprocates in the Y direction for a cycle, and the cycle is alternated in sequence, and the LED display unit on the LED module forms an L-shaped motion track; or the LED module reciprocates in the X direction for half cycle, then reciprocates in the Y direction for one cycle, then resets in the X direction and alternates in sequence, and the LED display unit on the LED module forms

A font motion trajectory.

3. The method for controlling the LED display screen according to claim 1 or 2, wherein the method comprises the following steps: the reciprocating motion frequency of the LED module is more than or equal to 3 times/second.

4. An LED display screen, comprising:

the LED module is provided with a plurality of LED display units;

5. The LED display screen of claim 4, wherein: the LED display screen is provided with an X direction and a Y direction, the LED display units are arranged transversely and vertically in the XY direction, the horizontal center distance between every two adjacent LED display units in the X direction is a, the vertical center distance between every two adjacent LED display units in the Y direction is b, the LED module reciprocates in the X direction, and a is larger than or equal to b; or the LED module reciprocates in the Y direction, and b is more than or equal to a.

6. The LED display screen of claim 5, wherein: the LED display units are arranged in a position-to-position manner on two adjacent rows, and 4 adjacent LED display units form a square layout; or the LED display units are arranged on two adjacent rows in a staggered mode, and 3 adjacent LED display units form a 'pin' shaped layout.

7. The LED display screen of claim 4, wherein: the display screen is provided with an X direction and a Y direction, the LED display units are transversely and vertically arranged in the XY direction, the LED modules and the X direction form a theta angle to carry out reciprocating motion, and theta is larger than 0 degree and smaller than 90 degrees.

8. The LED display screen of claim 4, wherein: the display screen is provided with an X direction and a Y direction, the LED display units are arranged transversely and vertically in the XY direction, and the reciprocating swing mechanism is a bidirectional reciprocating swing mechanism and drives the LED module to do reciprocating motion in the X direction and the Y direction.

9. The LED display screen of claim 8, wherein: the LED modules move in the X direction and the Y direction in sequence, and the LED display unit forms a square-shaped movement track; or the LED module reciprocates in the X direction for a cycle and then reciprocates in the Y direction for a cycle, and the cycle is alternated in sequence, and the LED display unit forms an L-shaped motion track; or the module reciprocates in the X direction for half cycle, then reciprocates in the Y direction for one cycle, then resets in the X direction, and alternates in sequence, and the LED display unit forms

A font motion trajectory.

10. The LED display screen of claim 4, wherein: the LED module is arranged on the sliding rail so as to realize the stable reciprocating motion of the LED module.

11. The LED display screen of claim 4, wherein: the number of the LED modules is 1 or more, and the LED modules are directly arranged on the reciprocating swing mechanism; or the number of the LED modules is 1 or more, the LED module fixing device further comprises a support frame, the LED modules are fixed on the support frame, and the reciprocating swing mechanism is connected and installed with the support frame.

12. The LED display screen of claim 4, wherein: the driving assembly is connected with the reciprocating swing mechanism and drives the reciprocating swing mechanism to act.

13. An LED display screen according to any one of claims 4 to 12, wherein: the control system comprises a power supply and one or more of a program control computer, a program controller, a program control card and a program control element; the various components of the control system are integrated into a single device having a housing or are separate structures formed from multiple components interconnected together.

14. An LED display screen according to claim 13, wherein: and part of program control elements of the control system are integrated on the LED module.

15. The LED display screen of claim 4, wherein: the LED display units are LED lamp beads, and one LED lamp bead forms one LED display unit; or the LED display unit is an LED single-color chip, and one LED single-color chip forms one LED display unit; or the LED display units are bicolor chip groups, and each LED display unit consists of two chips emitting light with different colors; or the LED display units are three-color chip groups, and each LED display unit consists of three chips emitting light with different colors.

16. The LED display screen of claim 4, wherein: the remote control system also comprises a remote controller, wherein the remote controller is in wireless connection with the control system to realize remote control on the control system.

17. An electronic device, characterized in that: comprising a housing and a LED display screen according to any of the preceding claims 4-16.