KR20230149492A - Led screen device with movable main screen door - Google Patents

Abstract

In the present invention, a movable main screen door is detachably coupled to the central opening of a fixed sub-screen by moving forward and backward, enabling various stage productions and advertising demonstrations depending on the position of the movable main screen door, and the movable main screen door is fixed. When combined in a form that closes the opening of the sub-screen, the gap between the effective display areas of the two screens is minimized, high-quality images can be displayed naturally, and the shock applied to the LED panel and driver during the combined operation is reduced. It relates to an LED screen device with a movable main screen door, comprising: a base panel supported on the bottom and having at least two guide rails installed along the longitudinal direction on the top; A bogie on which a plurality of casters movable along the guide rail are installed on the bottom surface; A fixed sub-screen in which a plurality of sub-LED panels are coupled and fixed on a sub-screen frame fixed to a base end of the base panel and an opening is formed in the center; and a movable main screen door in which a plurality of main LED panels are coupled and fixed on a main screen frame fixed to the front of the cart, and is detachably coupled to the opening to open and close the opening.

Description

LED screen device with a movable main screen door {LED SCREEN DEVICE WITH MOVABLE MAIN SCREEN DOOR}

The present invention allows a movable main screen door to move to the rear of a fixed sub screen, enabling various stage productions and advertising demonstrations, and when the main screen door and sub screen are combined, the gap between the effective display areas of the two screens is minimized to provide high picture quality. This relates to an LED screen device equipped with a movable door main screen that can display images naturally.

Recently, LED screen devices that combine multiple LED panels to form a large screen have been widely used. LED screens, unlike existing stage background panels or advertising signs, have the advantage of being able to produce a variety of screens and display high-definition videos. However, the device was large and difficult to move, and it was difficult to fold or split the screen to move it, which limited the range of applications.

To solve these shortcomings, Korea Public Utility Model No. 20-2009-0010752 “LED screen with folding function” proposes a bellows type LED screen device that can be folded left and right. Republic of Korea Patent No. 10-1692125, “Freely Foldable Flexible LED Screen,” proposes an LED screen device that can flexibly fold LED sub-screens using a connecting mechanism consisting of a rotating shaft and a rotating rod.

However, conventional LED screen devices have a fairly large gap where the screen is folded, which causes the image displayed on the screen to be interrupted. In low-definition LED screen devices where the spacing between pixels is 5 mm or more, these spacing does not cause a major problem in visibility. However, recently, LED screen devices for stage backgrounds or advertisements are evolving from HD (High Definition) level to UHD (Ultra High Definition) level. UHD-level LED screen devices are also gradually evolving from the conventional 2K picture quality to 4K with about 4,000 pixels on the long side and 8K with about 8,000 pixels on the long side. In order to produce high-definition UHD images in large LED screen devices, the gap between pixels must be lowered to 3mm or less. However, devices with conventional flexible screens have a problem in that the gap between effective display areas widens significantly at the folded portion of the screen, making it virtually impossible to produce high-definition images.

In addition, conventional LED screen devices have problems such as the movable parts of the screen being mechanically weak and shocks being applied to the LED panel while the screen is in operation, shortening its lifespan.

Republic of Korea Public Utility Model No. 20-2009-0010752 Republic of Korea Patent No. 10-1692125

In the present invention, a movable main screen door is detachably coupled to the central opening of a fixed sub-screen by moving forward and backward, enabling various stage productions and advertising demonstrations depending on the position of the movable main screen door, and the movable main screen door is fixed. When combined in a form that closes the opening of the sub-screen, the gap between the effective display areas of the two screens is minimized, high-quality images can be displayed naturally, and the shock applied to the LED panel and driver during the combined operation is reduced. The purpose is to provide an LED screen device equipped with a movable main screen door.

An LED screen device with a movable main screen door according to an embodiment of the present invention includes a base panel supported on the bottom surface and at least two guide rails installed along the longitudinal direction on the top surface; A bogie on which a plurality of casters movable along the guide rail are installed on the bottom surface; A fixed sub-screen in which a plurality of sub-LED panels are coupled and fixed on a sub-screen frame fixed to a base end of the base panel and an opening is formed in the center; and a movable main screen door in which a plurality of main LED panels are coupled and fixed on a main screen frame fixed to the front of the cart, and is detachably coupled to the opening to open and close the opening.

An LED screen device with a movable main screen door according to another embodiment of the present invention includes a coupling structure installation frame installed along the vertical direction on both sides of the opening on the back of the fixed sub-screen; a plurality of positioning shafts installed at predetermined intervals on the coupling structure installation frame and protruding at a predetermined length toward the rear surface of the fixed sub-screen; a plurality of shaft holder brackets coupled and fixed to the rear surface of the main screen frame and having a protrusion that protrudes to a position corresponding to the positioning shaft; and a shaft holder coupled to the protrusion and forming a shaft insertion hole into which the positioning shaft is inserted.

In the LED screen device with a movable main screen door according to another embodiment of the present invention, the tip of the positioning shaft is provided with a bullet-shaped tip whose outer diameter is gradually reduced.

An LED screen device with a movable main screen door according to another embodiment of the present invention includes a shaft inlet portion on the protrusion of the shaft holder bracket that communicates with the shaft insertion hole and has a larger inner diameter than the shaft insertion hole; A shaft insertion guide portion whose inner diameter becomes smaller as it moves from the end of the shaft inlet toward the distal end is formed.

In the LED screen device with a movable main screen door according to another embodiment of the present invention, a plurality of linear bearings in rolling contact with the outer peripheral surface of the positioning shaft are installed on the inner peripheral surface of the shaft insertion hole.

An LED screen device with a movable main screen door according to another embodiment of the present invention includes a plurality of fixing magnets installed at predetermined intervals on the coupling structure installation frame; and a magnet attachment portion made of magnetic material that is coupled and fixed to the back of the main screen frame and installed at a position corresponding to the fixing magnet.

An LED screen device with a movable main screen door according to another embodiment of the present invention protrudes in a U-shape toward the rear to cover the positioning shaft in the coupling structure installation frame, and its rear end is bent laterally outward. It further includes a shaft protection handle formed to support the shaft.

According to the LED screen device with a movable main screen door of the present invention, the movable main screen door is detachably coupled to the central opening of the fixed sub-screen by moving forward and backward, so that various stage productions can be performed depending on the position of the movable main screen door. It enables advertising demonstrations, and when the movable main screen door is combined to close the opening of the fixed sub-screen, the gap between the effective display areas of the two screens is minimized, high-definition images can be displayed naturally, and LEDs are turned on during the combined operation. It has the effect of reducing the impact applied to the panel and actuator.

1 is a front perspective view of an LED screen device with a movable main screen door according to the present invention;
Figure 2 is a rear perspective view of an LED screen device equipped with a movable main screen door according to the present invention;
Figure 3 is a front perspective view illustrating a use state in which the movable main screen door is moved rearward in the present invention;
Figure 4 is a rear perspective view illustrating a use state in which the movable main screen door is moved rearward in the present invention, and
Figure 5 is a plan view illustrating the internal structure of the shaft holder in the present invention.

Hereinafter, specific embodiments according to the present invention will be described with reference to the attached drawings. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

Throughout the specification, parts having similar structures and operations are given the same reference numerals. Additionally, the drawings attached to the present invention are for convenience of explanation, and the shape and relative scale may be exaggerated or omitted.

In describing the embodiments in detail, redundant descriptions or descriptions of techniques that are obvious in the field have been omitted. Additionally, in the following description, when a part "includes" other components, this means that it may include additional components in addition to the components described, unless specifically stated to the contrary.

In addition, terms such as "unit", "unit", and "module" used in the specification refer to a unit that processes at least one function or operation, which may be implemented through hardware or software or a combination of hardware and software. You can. Additionally, when a part is said to be electrically connected to another part, this includes not only the case where it is directly connected, but also the case where it is connected with another component in between.

Terms containing ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, the second component may be referred to as the first component without departing from the scope of the present invention, and similarly, the first component may also be referred to as the second component.

Figure 1 is a front perspective view of an LED screen device equipped with a movable main screen door according to the present invention, Figure 2 is a rear perspective view of an LED screen device equipped with a movable main screen door according to the present invention, and Figure 3 is a It is a front perspective view illustrating a use state in which the movable main screen door is moved rearward, Figure 4 is a rear perspective view illustrating a use state in which the movable main screen door is moved rearward in the present invention, and Figure 5 is a shaft holder in the present invention. This is a floor plan illustrating the internal structure of.

1 to 5, the LED screen device equipped with the movable main screen door of the present invention includes a fixed sub screen 100, a movable main screen door 200, a cart 300, and a base panel 400. It consists of

The fixed sub screen 100 is a screen in which a plurality of sub LED panels 120 are coupled and fixed on a sub screen frame 110 and an opening is formed in the center. The sub-screen frame 110 is formed in a grid shape, and sub-LED panels 120 are combined within each unit grid. A sub LED panel driver 122, such as a drive IC that drives the sub LED panel 120, is installed on the rear of the sub LED panel 120.

The movable main screen door 200 is a screen in which a plurality of main LED panels 220 are combined and fixed on the main screen frame 210. The movable main screen door 200 functions as a door that opens and closes the central opening of the fixed sub-screen 100 by moving forward and backward with respect to the central opening. The main screen frame 210 is also formed in a grid shape, and the main LED panel 220 is combined within each unit grid. A main LED panel driver 222 that drives the main LED panel 220 is installed on the rear of the main LED panel.

The cart 300 is a device for moving the movable main screen door 200 forward and backward, and is a type of cart. The base panel 400 is firmly supported on the floor and serves as a means of stably fixing the entire device.

As shown, the base panel 400 has a wide panel shape and is firmly fixed to the floor by a plurality of support brackets 420. Two guide rails 410 are installed side by side along the longitudinal direction on the upper surface of the base panel 400. The sub-screen frame 110 is coupled to the proximal end of the base panel 400 and installed in an erect state.

The cart 300 consists of a hexahedral frame of a predetermined height, and is provided with a shelf 330 in the middle on which stage production props, etc. can be loaded. As shown, the main screen frame 210 is fixedly installed in front of the cart 300. Wheels 322 in rolling contact with the guide rail are provided on the bottom of the bogie 300, and a plurality of casters 320 that can move along the guide rail 410 are installed. A bogie handle 310 is installed at the rear of the upper end of the bogie 300. Therefore, the operator can manually move the movable main screen door 200 by holding the truck handle 310. Although not shown or illustrated, it goes without saying that the movable main screen door 200 can be moved forward and backward electrically.

The LED screen device of the present invention is a device in which a plurality of LED panels are combined to form one large screen. The movable main screen door 200 is located in the center of the entire screen and functions as a door. The movable main screen door 200 is a screen that mainly displays people or central content. The fixed sub-screen 100 is located at the edge of the entire screen and functions as a fixed screen wall. The fixed sub screen 100 is a screen that displays a background screen.

In the present invention, “sub screen” and “main screen” are terms used to distinguish between fixed screens and movable screens, and do not necessarily mean that one screen performs a subordinate role or function to the other screen. As shown in Figures 1 and 2, when two screens are combined, the entire screen can display a unified image as one. As shown in Figures 3 and 4, when the movable main screen door 200 is moved rearward and opened, colorful images can be displayed using perspective. For example, as shown in FIG. 3, when the movable main screen door 200 moves backward and is opened, a person may enter the open space and then disappear off the stage. At this time, a background image is displayed on the fixed sub-screen 100 and an image of the back of a disappeared person gradually moving away is displayed on the movable main screen door 200, making it possible to produce a very three-dimensional stage in a narrow space.

Referring to the illustrated examples, the detailed configuration and operation of the LED screen device equipped with the movable main screen door of the present invention will be described in more detail.

Referring to the rear perspective view of FIGS. 2 and 4, a coupling structure installation frame 112 is installed on the rear of the fixed sub-screen 100 along the vertical direction on both sides of the opening. The coupling structure installation frame 112 is a frame in which structures are installed that firmly fix the movable main screen door 200 when it is closed and at the same time allow the two screens to be tightly coupled without clearance.

Referring to the enlarged view in FIG. 2 and the door open state view in FIG. 4, positioning shafts 160 are installed on the coupling structure installation frame 112 at a predetermined interval. The positioning shaft 160 is a shaft that protrudes rearward by a predetermined length, and its tip is provided with a tip 162 whose outer diameter is gradually reduced and has a bullet shape.

A plurality of shaft holder brackets 260 having protrusions protruding laterally outward corresponding to the position of the positioning shaft 160 are fixedly installed on the rear surface of the main screen frame 210. Then, a shaft holder 262 having a shaft insertion hole 268 into which the positioning shaft 160 is inserted is coupled to the protrusion of the shaft holder bracket 260.

Referring to FIG. 5, a long bracket fixing hole 266 is formed in the shaft holder bracket 260, and a plurality of fixing bolts are fastened to this bracket fixing hole 266 to secure the shaft holder bracket 260 to the main screen. It is firmly fixed to the frame 210. In FIG. 5 , a shaft insertion portion 264 and a shaft insertion guide portion 265 communicating with the shaft insertion hole 268 are formed on the protruding portion protruding to the right. The shaft inlet 264 has a larger inner diameter than the shaft insertion hole 268, so that the tip 162 of the positioning shaft 160 can be stably inserted. The shaft insertion guide portion 265 is formed to have an inner diameter that becomes smaller as it moves from the end of the shaft insertion portion 264 toward the distal end. Accordingly, the tip 162 of the positioning shaft 160 is guided so that it can be inserted into the shaft insertion hole 268 in the correct position.

The flange portion formed at the lower portion of the shaft holder 262 is a portion that couples the shaft holder 262 to the shaft holder bracket 260. A shaft insertion guide portion 265 and a shaft insertion hole 268 are provided on the inner periphery of this flange portion. A communication portion 267 for communication is formed. Referring to FIG. 5, a plurality of linear bearings 269 are installed on the inner peripheral surface of the shaft insertion hole 268 and are in rolling contact with the outer peripheral surface of the positioning shaft 160. Therefore, the positioning shaft 160 can be flexibly coupled while passing through the shaft insertion hole 268, and after the positioning shaft 160 is completely inserted, the movable main screen door 200 and the fixed sub-screen 100 There is almost no gap at the joining site.

A shaft protection handle 170 protruding in a U shape toward the rear is installed on the coupling structure installation frame 112 to cover the positioning shaft 160. The shaft protection handle 170 prevents the axis of the positioning shaft 160 from being twisted due to external impact. In addition, the rear end of the shaft protection handle 170 is formed to be bent laterally outward so that the operator can perform work by holding the shaft protection handle 170 without interfering with the positioning shaft 160.

As shown in the second enlarged drawing of FIG. 2, a plurality of fixing magnets 150 are installed on the coupling structure installation frame 112 and spaced apart at predetermined intervals. Correspondingly, a magnet attachment portion 250 formed of a magnetic material is installed on the back of the main screen frame 210 at a position corresponding to the fixing magnet. The magnet attachment portion 250 protrudes outward from the side of the main screen frame 210 and is formed in a cross-sectional diagonal shape surrounding the fixing magnet 150. An angle 252 is fastened between both sides of the magnet attachment portion 250 and the main screen frame 210 to firmly fix the magnet attachment portion 250. With the positioning shaft 160 fully inserted into the shaft insertion hole 268, the magnet attachment portion 250 is magnetically attached to the fixing magnet 150, so that the movable main screen door 200 is a fixed sub-screen ( 100) can remain firmly coupled.

Meanwhile, in the drawing, an unexplained symbol 214 denotes a wire storage portion 214 in which power and signal lines connected to the sub LED panel driver 122 and the main LED panel driver 222 are stored.

The invention disclosed above can be modified in various ways without damaging the basic idea. In other words, all of the above embodiments should be interpreted as illustrative and not limited. Therefore, the scope of protection of the present invention should be determined based on the attached claims, not the above-described embodiments, and if the components defined in the attached claims are replaced with equivalents, this should be considered to fall within the scope of protection of the present invention.

100: fixed sub screen 110: sub screen frame
112: Combined structure installation frame 120: Sub LED panel
122: Sub LED panel driver 150: Fixing magnet
160: positioning shaft 162: tip portion
170: Shaft protection handle 200: Movable main screen door
210: main screen frame 214: wire storage unit
220: Main LED panel 222: Main LED panel driver
250: Magnet attachment part 252: Angle
260: Shaft holder bracket 262: Shaft holder
264: Shaft inlet 265: Shaft insertion guide
266: Bracket fixing hole 267: Communication part
268: Shaft insertion hole 269: Linear bearing
300: Bogie 310: Bogie handle
320: Caster 322: Wheel
330: Shelf 400: Base panel
410: Guide rail 420: Support bracket

Claims (7)

A base panel supported on the floor and having at least two guide rails installed along the longitudinal direction on the upper surface;
A bogie on which a plurality of casters movable along the guide rail are installed on the bottom surface;
A fixed sub-screen in which a plurality of sub-LED panels are coupled and fixed on a sub-screen frame fixed to a base end of the base panel and an opening is formed in the center; and
A plurality of main LED panels are coupled and fixed on a main screen frame fixed to the front of the cart, and a movable main screen door is detachably coupled to the opening to open and close the opening.
An LED screen device with a movable main screen door including.
According to paragraph 1,
a coupling structure installation frame installed on the rear surface of the fixed sub-screen along the vertical direction on both sides of the opening;
a plurality of positioning shafts installed at predetermined intervals on the coupling structure installation frame and protruding at a predetermined length toward the rear surface of the fixed sub-screen;
a plurality of shaft holder brackets coupled and fixed to the rear surface of the main screen frame and having a protrusion that protrudes to a position corresponding to the positioning shaft; and
A shaft holder is coupled to the protrusion and has a shaft insertion hole into which the positioning shaft is inserted.
An LED screen device having a movable main screen door further comprising:
According to paragraph 2,
An LED screen device with a movable main screen door in which the tip of the positioning shaft has a bullet-shaped tip with an outer diameter gradually reduced.
According to paragraph 3,
The protrusion of the shaft holder bracket is a movable type having a shaft inlet portion that communicates with the shaft insertion hole and has a larger inner diameter than the shaft insertion hole, and a shaft insertion guide portion whose inner diameter decreases from the end of the shaft inlet toward the distal end. LED screen unit with main screen door.
According to any one of claims 2 to 4,
An LED screen device having a movable main screen door in which a plurality of linear bearings in rolling contact with the outer peripheral surface of the positioning shaft are installed on the inner peripheral surface of the shaft insertion hole.
According to paragraph 2,
a plurality of fixing magnets spaced apart from each other at predetermined intervals on the coupling structure installation frame; and
A magnet attachment portion of magnetic material is fixed to the back of the main screen frame and installed at a position corresponding to the fixing magnet.
An LED screen device having a movable main screen door further comprising:
According to paragraph 2,
An LED screen device with a movable main screen door further comprising a shaft protection handle that protrudes in a U-shape from the coupling structure installation frame toward the rear to cover the positioning shaft, and whose rear end is formed to be curved laterally and outward.

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