KR101811556B1 - Extendable Transparent LED Display Assembly - Google Patents

Abstract

According to the present invention, an extendable transparent light emitting diode (LED) display assembly comprises a substrate assembly of a transparent material and a driving unit. The substrate assembly comprises a main substrate including a base having an LED on the upper surface thereof, an expansion surface extending to have a predetermined area at a lower height than the base at one side of the base, and a mounting space between the base and the expansion surface; a plurality of sub-substrates having the same configuration as the main substrate, sequentially mounted on the mounting space as the size thereof is reduced more than the main substrate, and allowing each base to have the same plane as the base of the main substrate; and a substrate panel fitted and coupled with the same volume to the mounting space of the finally mounted sub-substrate among the sub-substrates in a state that the LED is provided on the upper surface thereof, and having the same plane as the bases of the main substrate and the sub-substrates. The driving unit is coupled to an outer surface of the base of the main substrate and controls the driving of the LED.

Description

Extendable Transparent LED Display Assembly < RTI ID = 0.0 >

The present invention relates to an extensible transparent LED display assembly, and more particularly, to an extensible transparent LED display assembly that extends a transparent LED display substrate in a laminated form, which can control a plurality of transparent LED display substrates through a single driver, To an extendable transparent LED display assembly.

LED display assemblies are widely used for various applications due to their low lifespan and high color reproducibility while consuming less power. Especially, in recent years, a lot of investments and studies have been made on a method of producing a large-sized display having a large area of the LED display assembly, and at the same time, a display having transparency has also been intensively developed. This development trend is also related to human life environment changes. The enlargement of display has been developed based on the desire for large displays pursued by mankind as technology development advances. Especially, in advertisement and industrial fields, Is growing exponentially and the related market is booming. In addition, the demand for transparent displays is increasing with IOT, augmented reality, mixed reality, and portable devices, which are increasing in recent years. However, the convergence of surroundings and digital, which conventional display devices have not solved, As the technology becomes more feasible, the development and investment of relevant technology is progressing actively with the development of this technology.

Thus, although transparency displays are ultimately aimed at making the transparency display large in size, the ultimate goal of transparency displays is that, as a limitation of transparent displays, what has been pointed out is that when a plurality of displays are connected to form a large display, There has been a problem that the electric wires (data, power supply, etc.) increase correspondingly and the transparency of the transparent display is lost by these electric wires. In order to solve this problem, there have been developed technologies such as placing the wires on the side portions of the display that are not related to the display, but eventually, when a plurality of displays are connected to the large-sized display, It is no exaggeration to say that the large-scale technology that pursues perfect transparency has not been properly developed yet.

As a prior art for solving such a problem, Korean Patent No. 10-1569969 discloses a " block-type transparent display panel capable of video wall ".

The present invention relates to a quadrangular transparent display panel having a driving board on one side, wherein the two transparent display panels are coupled to each other by a receiving frame and a fastening frame respectively provided at one end, The display panel is horizontally extended so as to be seated thereon and then vertically bent upwardly to form a receiving space continuously and forwardly and downwardly, and the fastening frame is provided with an insertion portion to be inserted into the receiving space, The display panel can be easily moved and installed with a light and simple block type display medium. Also, when a plurality of panels is used, the display panel can be expanded to a video wall, A video wall that can also implement a multi-view showroom And a method for providing such a block-type transparent display panel.

However, since the transparent display panel loses considerable transparency in the configuration of the connection portion, it is difficult to utilize the transparent display panel in fields requiring total transparency.

According to Korean Patent Publication No. 10-2016-0013563, " Transparent display device " as another prior art, the present invention relates to a transparent display device which is detachably attached to a predetermined product and displays product information and advertisement in the product. A frame including an opening; a transparent display panel disposed at a first opening of the frame; and a control module disposed at a second opening of the frame to control the transparent display panel, An extension frame mounted to cover a front surface or separated from a front surface of a door of a predetermined product and extending from a rim of the frame toward a door portion of a predetermined product and a side edge of the door portion of the predetermined product are fastened And a transparent display device.

However, in the case of a transparent display device, there is a problem that the control module is unconditionally included in one display, and the frame is positioned between the control module and the transparent display.

SUMMARY OF THE INVENTION It is an object of the present invention to overcome the problems of the prior art by providing a structure in which a plurality of transparent display substrates are connected and utilized and a plurality of substrates are controlled through one driving unit, .

It is another object of the present invention to provide a structure capable of providing sufficient bonding strength while ensuring such transparency.

It is another object of the present invention to provide a configuration capable of expanding control of a display substrate.

According to an aspect of the present invention, there is provided an extendable transparent LED display assembly including a base having an LED on an upper surface thereof, an extension surface extending from a side of the base to a lower height than the base, A main board having a seating space which is a space formed between a lateral side of the base and a top side of the extended surface with reference to a contact portion between the base and the extended surface; A plurality of sub-substrates which are sequentially mounted on the seating space while being reduced in size and whose bases are flush with the base of the main substrate; and a plurality of sub- Is fitted into the seating space of the sub board with the same volume, A substrate assembly of a transparent material made of a substrate forming the panel in the same plane as a main board and a base of the sub-board; And a driving unit coupled to an outer surface of the base of the main substrate and controlling driving of the LED.

In addition, the substrate assembly may further include a main lining extending across a base and an extension surface of the main substrate, the main lining extending data and power supply ranges in a state of being electrically connected to the driving unit, The substrate and the substrate panel extend vertically through the LEDs provided on the main substrate and the upper surface of the sub-substrate and the LEDs provided on the upper surface of the substrate panel from one side of the main lining, And a plurality of via holes electrically connecting the lining to each of the LEDs.

Further, a region where the driving unit is mounted on the outer surface of the base of the main substrate may include a data transmission terminal for receiving data from the driving unit in a state of being electrically connected to the main lining, And a connector is further formed.

In addition, the LED display assembly may include a sub driver coupled to an outer surface of the driving unit to assist in driving the LED, and a light emitting unit extending from a lower end of the sub driver to shield the bottom surface of the driving unit and the main substrate And an extension board including a sub-extension extending across an upper surface of the sub-expansion surface in electrical connection with the sub-driver, wherein the extension board and the main board are electrically connected to each other, And a plurality of sub-via holes extending vertically through a plurality of via holes formed in the main substrate from one side of the sub-lining to electrically connect the sub-lining and the LED, , And is formed at the same position as the main lining when viewed from the bottom It is formed to be presented to my lining characterized.

According to the extensible transparent LED display assembly according to the present invention,

1) a plurality of transparent display substrates are connected and utilized, and a plurality of substrates are controlled through a configuration in which the main lining extending from one driving unit is electrically connected to each LED through a plurality of via holes, Configuration,

2) Further, the sub-lining provided additionally through the extension board is horizontally positioned with respect to the main lining, so that when viewed from the front, it appears as if there is only one lining even if the number of lining increases as if there is only one lining Provides a losing configuration,

3) Providing a structure that can enhance the transparency and strengthen the bonding structure at each base,

4) Further, it is possible to provide an additional configuration capable of assisting the coupling between the respective substrates.

1 is a perspective view illustrating a basic configuration of an extensible transparent LED display assembly of the present invention;
2 is a longitudinal sectional view showing a basic configuration of an extensible transparent LED display assembly of the present invention;
3 is a longitudinal cross-sectional view of one embodiment of a via hole in a transparent LED display assembly of the present invention.
4 is a longitudinal cross-sectional view illustrating an embodiment in which an expanded substrate is applied to the transparent LED display assembly of the present invention.
5 is a longitudinal sectional view showing an embodiment in which a hollow portion is formed in the main board of the present invention.
6 is a longitudinal sectional view and a coupled perspective view showing a coupling structure between bases of the present invention;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are not drawn to scale and wherein like reference numerals in the various drawings refer to like elements.

FIG. 1 is a perspective view showing a basic configuration of an extensible transparent LED display assembly of the present invention, and FIG. 2 is a longitudinal sectional view showing a basic configuration of an extensible transparent LED display assembly of the present invention.

The transparent LED display assembly 10 according to the present invention includes a base 111 having an LED 11 on an upper surface thereof and an extension extending from the one side of the base 111 to a lower height than the base 111, A seating space 113 which is a space formed outside the side surface of the base 111 and on the upper surface of the expansion surface 112 with reference to a contact portion between the base 111 and the expansion surface 112, The main board 110 has the same structure as the main board 110 and is sequentially placed on the seating space 113 while being reduced in size from the main board 110 so that the same plane as the base 111 And the LED 11 is mounted on the upper surface of the sub-substrate 120 in the same volume as the seating space 113 of the final sub-substrate 120 among the plurality of sub-substrates 120 The base 111 is in the same plane as the base 111, A transparent substrate assembly 100 comprising a plate panel 130; And a driving unit 200 coupled to an outer surface of the base 111 of the main substrate 110 and controlling driving of the LED 11. [

First, the substrate assembly 100 is stacked on the main substrate 110 on a plurality of sub-substrates 120 while the main substrate 110 is placed on the bottom surface. Finally, the substrate panel 130 is stacked, Like display panel of the display device.

More specifically, the main substrate 110 and the sub-substrate 120 have the same basic structure. The main substrate 110 and the sub-substrate 120 have the same basic structure. A plurality of LEDs 11 are mounted on the upper surface, A base 111 and a base 111. The base 111 further includes a base 111 and a base 111. The base 111 is formed of a base 111 and a base 111. The base 111 is a base 111, Therefore, it can be deduced from the shapes of the enlarged surface 112 and the base 111 that the combined form of the enlarged surface 112 and the base 111 has a shape similar to 'b' . As can be seen from FIG. 2, the space enclosed by the combination of the expansion surface 112 and the base 111 in a 'b' shape can be referred to as a seating space 113.

The sub-substrate 120 is placed in the seating space 113. The sub-substrate 120 can be prepared in an amount that can increase or decrease the number of substrates to be stacked, The sub-substrate 120 having the same configuration and connection structure as the substrate 110 is positioned, and each sub-substrate 120 has a structure in which the size gradually decreases so that the sub- .

The plane formed by the base 111 of the main substrate 110 (through the upper surface provided with the LED 11) is continuously parallel to the plane formed by the base 111 included in the other sub-substrate 120 So that a plurality of transparent LED 11 display substrates can be extended in this way. Further, the substrate panel 130, which is finally inserted into the seating space 113 to close the substrate assembly 100, does not have an enlarged surface 112 because no further expansion is required, and therefore, the seating space 113 ), And is provided with only the base 111 in a state not provided. Such a substrate panel 130 should also be constructed such that the plane formed by the base 111 of the main substrate 110 and the substrate panel 130 placed last at the same time continue to form the same plane.

Through such a configuration, it can be confirmed that the substrate assembly 100 can be formed as a combination of a plurality of transparent substrates. At the same time, the driving unit 200 may further be coupled to the outer surface of the base 111 of the main substrate 110 so as to control driving of the LED 11 mounted on the substrate assembly 100. The driving unit 200 is a kind of controller and the driving unit 200 is mounted on the outer surface of the base 111 of the main board 110 and connected to the other sub board 120 and the board panel 130 connected to the main board 110 So that the control of the mounted LED 11 can be performed. The driving unit 200 may be provided on the outer surface or the inner surface of the main substrate 110 in addition to the outer surface of the base 111 of the main substrate 110. However, It is not recommended that it be harmful and, in the case of other outer surfaces, it can of course be considered as necessary.

At this time, in order to control the LED 11 located on a plurality of substrates by one driver 200, the following configuration should be further considered. That is, in the case of the display of the present invention in which transparency is to be ensured particularly, the wiring structure plays a very important role as a configuration for the wiring extending from the driving unit 200 toward each LED 11.

3 is a longitudinal cross-sectional view illustrating an embodiment in which a via hole is applied to the transparent LED display assembly of the present invention.

The main board 110 extends along the base 111 and the extended surface 112 of the main board 110 and is electrically connected to the driving unit 200. The main board 110 is electrically connected to the main board 110, The lining 300 may further be included. The main lining 300 is formed by stacking (or integrating) a plurality of wirings so as to be seen with one wiring line (lining). The main lining 300 is formed on one surface (upper surface, lower surface, A metal wire may be directly attached or inserted through the extended surface 112 and the base 111 or a method of inserting the metal wire through the extended surface 112 and the base 111 may be used, 111 may be patterned in a state in which grooves are formed through the grooves.

Since the base 111 is connected to the driving unit 200, the main lining 300 is generally electrically connected to the driving unit 200 for signal transmission and power supply from the driving unit 200, And the like. Furthermore, a plurality of LEDs 11 located on the upper surface can be driven through the data line and the power line.

Since the main lining 300 is used as a reference line to be a mother lane of another structure to be described later and other components are branched from the main lining 300, There is an advantage that it is hardly affected by the transparency loss caused by the light. In particular, the main lining 300 may be formed in a straight line shape, and this shape can sufficiently guarantee transparency as compared with a case where a large number of existing lines are located and the transparency is degraded.

However, the base 111 and the main lining 300 of the main substrate 110 need to be very long as the number of the sub-substrates 120 increases. In general, when the length exceeds 2 m, It is very difficult to manufacture with a panel. Therefore, when the construction is excessively long or wider than the manufacturing capability, the plurality of bases 111 are connected to form one base 111, and the main lining 300 formed on each base 111, The main lining 300 may further include a separate connector (not shown) so as to maintain electrical connection between the main lining 300 and the main lining 300. However, it is also possible to permanently connect the main lining 300 through a method such as thermal fusion, if it is not necessary to separate the connector after it has been extended.

Further, a plurality of via holes 301 are formed in the main substrate 110, the sub substrate 120, and the substrate panel 130. The via hole 301 is formed so as to electrically connect the main lining 300 and the LED 11 located on the upper surface of each base 111. The via hole 301 can move the electric signal along the inner peripheral surface A hole in which a material made of a conductor is stacked. Therefore, even if only one main lining 300 is provided through the via hole 301, the LEDs 11 (not shown) located on the base 111 and the substrate panel 130 via the via holes 301 ), It is possible to provide an electric signal or power supply.

In consideration of such a configuration, the driving unit 200 may be detachably coupled to the outer surface of the base 111 of the main board 110. That is, in a region where the driving unit 200 is mounted on the outer surface of the base 111 of the main substrate 110, a data transfer terminal for receiving data from the driving unit 200 in a state of being electrically connected to the main lining 300, And a connector 310 including a power supply terminal for receiving power from the driving unit 200. The connector 310 can replace the driving unit 200 so that the driving unit 200 can be replaced The configuration to be used may also be considered.

4 is a longitudinal sectional view illustrating an embodiment in which an extended substrate is applied to the transparent LED display assembly of the present invention.

Further, the LED 11 display assembly is coupled to the outer surface of the driving unit 200 and includes a sub-driver 211 for assisting driving of the LED 11, a driving unit 211 extending from the lower end of the sub- A sub-extending surface 212 extending in an area covering the bottom surface of the main substrate and a sub-extending portion 212 extending across the upper surface of the sub-extending surface 212 in an electrically connected state with the sub- The extension board 210 and the main board 110 may further include a plurality of vias 213 formed on the main board 110 from one side of the sub lining 213, And a plurality of sub-via holes 302 extending vertically through the holes 301 to electrically connect the sub-lining 213 and the LEDs 11, respectively.

In other words, the configuration of the extension board 210 mounted on the lower portion of the main board 110 is further included as a configuration similar to the configuration of the main board 110, A sub-lining 213 is formed on an upper surface of the sub-driver 213. The sub-lining 213 is electrically connected to the sub-driver 211. [ The sub-driver 211 may be controlled differently from the driver 200, for example, when the LED 11 is driven, the sub-driver 211 may be controlled in two patterns simultaneously. However, in order to control the LED 11, the sub-driver 211 must further include a via hole 301 to electrically connect the LED 11 with the via hole 301, And a sub-via hole 302 extending to each via hole 301 so as to be utilized.

In this manner, the sub-lining 213 is formed to further control the LED 11. When the sub-lining 213 is formed at the same position as the main lining 300 when viewed from the bottom, Even if it is located, even if it is confirmed with the naked eye, it can be recognized that only one lining exists, so that it can be more helpful in pursuing transparency.

Here, the upper surface of the sub-expansion surface 212 may further include a plurality of buffer grooves 510, which are divided and extended by a predetermined interval on the left and right sides where the sub-lining 213 is formed. The buffering groove 510 is formed by surrounding the extension surface 112 of the main substrate 110 with the sub-expansion surface 212 having a very large area. It can absorb more impact than a form having a flat surface and can be utilized for improving durability.

Furthermore, the buffer groove 510 may be used not only for shock damping but also for preventing static electricity. That is, the antistatic layer 511 formed of a light-transmitting material and coated along the inner circumferential surface of the buffer groove 510 is formed. Since the sub-lining 213 is formed on the surface of the antistatic layer 511, It is possible to prevent the malfunction of the driving unit 200 located at the periphery by suppressing the generation of the static electricity.

The driving unit 200 is mounted on the transparent display device of the LED 11 in any manner so that the display board can be controlled using the minimum driving unit 200 even with a simple wiring configuration A configuration for allowing the user to be able to do so has been described. Now, as a second feature of the present application, a configuration capable of maintaining transparency while utilizing the foregoing configuration will be described.

First, the main lining 300 is formed on the main substrate 110. However, considering the transparency, the main lining 300 acts as a very negative factor for making the substrate transparent. However, without such lining, it is impossible to eliminate the lining because electrical signals can not be transmitted or the power supply can not be provided. Then, the structure for ensuring transparency while maintaining such a lining is to use the periphery. For example, when you hold a thread in your hand and look at the thread in detail, even if the thickness of the thread is thin, other regions may be hidden by the thread enough, but if you do not look at the thread in detail, The fact is that we can make it impossible to recognize the area covered by this thread.

5 is a longitudinal sectional view showing an embodiment in which a hollow portion is formed in the main board of the present invention.

5, the main lining 300 on the main substrate 110 is laminated on a rear surface opposite to the top surface of the main substrate 110. The main lining 300 is formed on the back surface of the main substrate 110, A hollow portion 117 is formed by drilling a hollow region except the region 115 where the main lining 300 is formed and the peripheral region, the region 116 where the via hole is formed, and the peripheral region, The hollow portion 117 is relatively more transparent than the region or the peripheral region 114 where the main lining 300 is located (although the expansion surface 112 itself has transparency, it can not be said to be completely transparent When seen from a distance, the portion where the main lining 300 is formed is seen as if it is transparent without being disturbed by the influence of the peripheral region. At this time, in order to perforate the hollow portion 117, it is preferable to use a method such as laser or UV cutting while the main lining 300 is formed on the back surface.

Further, in order to increase the efficiency of the hollow portion 117, the area of the opening formed on the back surface of the back surface of the main lining 300 is smaller than the area of the opening formed on the opposite surface The hollow portion 117 can be formed. This is because no separate lining is provided on the surface where the main lining 300 is not formed, so that even if it is punched wide, there is no problem in the transmission of an electric signal or the supply of power. Therefore, if the shape of the hollow portion 117 is formed to be lower, the opening is further formed on the upper surface which is the opposite side of the back surface where the main lining 300 is located, ) Has a sloping side surface, thereby making it possible to pursue more transparency.

Furthermore, in the substrate assembly 100, the interface between the substrates may become a factor that may lower the transparency. That is, the interface between the substrates is located at the boundary between the two substrates, unlike the surroundings, so that the amount of light transmitted changes sharply, so that the structure is darker than the other portions. Therefore, when the number of such boundary portions increases, when the display device is viewed, each boundary surface may be exposed to the naked eye and feel as if it is looking at the checkerboard.

Therefore, the following configuration can be further considered to prevent the border surface from being darkened.

6 is a vertical sectional view and a coupled perspective view showing a coupling structure between bases of the present invention.

First, as shown in FIG. 6 (a), when looking at the interface between neighboring bases 111, a base 111 of one of the two bases 111 includes a first inclined surface 401 formed to be inclined downward toward the inside And the second base 111 may further include a second inclined surface 402 inclined to contact the first inclined surface 401. Although the boundary structure having such a slope increases the range affected by the transparency rather than the conventional flat structure, the darkening light sensation is divided in comparison with the area, thereby ensuring transparency more efficiently than the conventional structure . Furthermore, this tilting structure may further provide additional coupling between the base 111 and the base 111, which is not provided with the preceding straight-type boundary structure, and further between the substrate and the substrate. That is, the first inclined surface 401 and the second inclined surface 402 formed to increase the transparency can be prevented from being separated from each other through the respective engaging portions. This is a technology that has the advantage of being able to do it.

6 (b), the first inclined surface 401 is formed on one of the bases 111, and the other inclined surface 401 is formed on one of the bases 111, And a second inclined surface 402 formed to be inclined to be symmetrical with respect to the first inclined surface 401 is formed on the basis of a virtual boundary line that is a boundary line extending in the vertical direction. Therefore, the 'G' -shaped portion is located between the first inclined surface 401 and the second inclined surface 402.

At this time, a slant surface inclined to closely contact the first slant surface 401 and the second slant surface 402 is provided between the base 111 and the base 111, The filling block 410 may be further extended to fill the space formed by the first inclined surface 401 and the second inclined surface 402 in the triangular filling surface 411 formed. That is, the filling block 410 has a triangular prism shape and is supported between the first inclined surface 401 and the second inclined surface 402 so as to be formed just under the base 111 exposed most outward So that the durability of the base 111 can be ensured. Of course, it is best to leave this space for transparency, but since the point at which the two inclined surfaces meet is limited to the corner portion formed by the inclined surfaces and the upper surface of each base 111, the durability is weak and it is difficult to maintain the contacted shape. So that it can be reinforced through the structure of the filling block 410.

The method of forming the two first inclined surfaces 401 and the second inclined surfaces 402 has been described so far. In the case of such an inclined surface, the LEDs 11 (not shown) on the upper surface of the base 111 are provided on the upper surface of the base 111 so that the formation of the inclined surface does not affect other configurations (in particular, does not affect the driving or disposition of the LEDs 11 located on the upper surface of the base 111) It is best to form a slope only in an area other than the area where the slits are arranged.

Of course, even if the inclined surface is formed as described above, the base 111 may be further provided with a configuration of the base hollow portion 403 formed by drilling the first inclined surface 401 or the second inclined surface 402 adjacent to the inclined surface 402 to improve transparency . Even in this case, the base hollow portion 403 can be formed on the base 111 by a laser or a UV cutting method. Therefore, the transparency deterioration which has remained weak due to the inclined surface can be reduced through the base hollow portion 403 It can be solved more.

3, a transparent adhesive 500 containing 2-ethylhexyl acrylate is injected between any one of the enlarged surfaces 112 and 112 and the extended surface 112 ) Can be fixed. That is, according to the existing description, a configuration for fixing the two separately is not included between the extended surface 112 and the extended surface 112. Such a structure can not avoid unstable bonding structure due to each weight as the lamination is formed long. Therefore, by injecting the adhesive 500 having transparency between the enlarged surface 112 and the enlarged surface 112 having the largest contact area, there is provided a structure capable of further improving the supporting force with little loss of transparency . Particularly, the 2-ethylhexyl acrylate used as the adhesive 500 maintains transparency before or after hardening, so that it can be said that the adhesive 500 is very suitable for adhesion of such a transparent panel.

At this time, the method of manufacturing the adhesive 500 is characterized by the following steps. 35 to 40 parts by weight of distilled water, 5 to 10 parts by weight of a nonionic surfactant, 30 to 50 parts by weight of 2-ethylhexyl acrylate, 5 to 20 parts by weight of butyl acrylate, 20 to 30 parts by weight of methyl methacrylate, Preparing a pre-emulsion by mixing 5 to 10 parts by weight of the pre-emulsion, and adding a reaction initiator in an amount of 0.01 to 0.1 part by weight based on the weight of the pre-emulsion to prepare a reaction solution, heating the reaction solution to 50 to 85 캜, For 3 hours to prepare an aging solution, and adding 1 to 10 parts by weight of an additive based on the weight of the aging solution.

First, the distilled water and the surfactant are mixed. At this time, distilled water is added to a reactor such as a beaker or a flask, and the surfactant is added to and dissolved in the reactor. At this time, surfactants such as sodium lauryl sulfate, sodium laurylsulfonate and sodium dodecylbenzenesulfonate, which are commonly used surfactants, can be used, but it is more preferable to use a nonionic surfactant, It is also suitable for increasing compatibility.

More preferably, nonylphenyl polyoxyethylene ether is used as a nonionic surfactant. When nonylphenyl polyoxyethylene ether is used as a surfactant, it is preferable to use nonylphenyl polyoxyethylene ether It is most preferable that the number of ethylene oxide groups is 20 to 40.

After the preparation process, 35 to 40 parts by weight of distilled water and 5 to 10 parts by weight of the nonionic surfactant as described above are mixed with the monomers for mixing the acrylic adhesive (500), and 2-ethylhexyl acrylate 30 5 to 20 parts by weight of butyl acrylate, 20 to 30 parts by weight of methyl methacrylate and 5 to 10 parts by weight of acrylic acid.

At this time, methyl methacrylate and acrylic acid are first charged sequentially, and then the remaining 2-ethylhexyl acrylate and butyl acrylate are added thereto, followed by mixing and stirring to prepare a pre-emulsion. At this time, it is more preferable to stir at a high speed of about 8000 rpm or more using a homogenizer.

Next, a reaction initiator is added in an amount of 0.01 to 0.1 part by weight based on the weight of the pre-emulsion to prepare a reaction liquid. At this time, any one of ammonium persulfate and sodium bisulfate may be used as a reaction initiator, and more preferably, ammonium persulfate may be used as a reaction initiator. At this time, exothermic heat was observed upon introduction of the reaction initiator, and it was confirmed that the acrylic polymer was produced. More preferably, a thermometer may be provided on one side of the reactor for heat generation observation.

More specifically, the reaction is initiated by adding 0.01 to 0.1 parts by weight of a reaction initiator based on the weight of the pre-emulsion and stirring. As a result, it can be confirmed that heat is generated and the reaction solution is heated in the range of 50 to 60 ° C. The remaining reactants that have not yet undergone polymerization react with each other to form an adhesive 500 which is a stable acrylic polymer.

The completed adhesive 500 is not only excellent in adhesiveness, but also has transparency at all times, so that even if it is injected between substrates of a transparent material, transparency is not significantly deteriorated and it can be very easily utilized.

Although the construction and operation of the extensible transparent LED display assembly according to the present invention have been described above and illustrated in the drawings, the present invention is not limited to the above description and drawings, It will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit of the invention.

10: Transparent LED display assembly 11: LED
100: substrate assembly 110: main substrate
111: base 112: extended face
113: seating space 114: peripheral region
115: lined area 116: area where via holes are formed
117: hollow part 120: sub board
130: substrate panel 200:
210: Extension board 211: Sub-
212: sub-expansion surface 213: sub-lining
300: main lining 301: via hole
302: Sub-via hole 310: Connector
401: first inclined surface 402: second inclined surface
403: base hollow part 410: filling block
411: filling surface 500: adhesive
510: buffer groove 511: antistatic layer

Claims (13)

A transparent LED display assembly,
A base having an LED on an upper surface thereof, an extension surface extending from one side of the base to a lower height than the base and having a predetermined area, A main board having a seating space, which is a space formed on the upper surface of the extension surface,
A plurality of sub-boards having the same configuration as the main board, the sub-boards being sequentially arranged in the seating space while being reduced in size than the main board, and each base being flush with the base of the main board;
And a substrate panel which is fitted in the same space as the seating space of the finally mounted sub-board among the plurality of sub-boards with the LED on the upper surface thereof and is flush with the bases of the main board and the sub-board A transparent substrate assembly;
And a driving unit coupled to an outer surface of the base of the main substrate, the driving unit controlling driving of the LED. The method according to claim 1,
The substrate assembly comprising:
Further comprising a main lining extending across a base and an enlarged surface of the main board and extending data and power supply ranges in electrical connection with the driver,
Wherein the main substrate, the sub substrate,
Extending vertically from one side of the side surface of the main lining to the LEDs provided on the main substrate and the upper surface of the sub-substrate and the LEDs provided on the upper surface of the substrate panel, and electrically connecting the main lining and the LEDs electrically Further comprising: a plurality of via holes connecting the plurality of light emitting diodes to the plurality of light emitting diodes. 3. The method of claim 2,
In the region on the outer side of the base of the main substrate on which the driving unit is mounted,
And a connector including a data transmission terminal for receiving data from the driving unit in a state of being electrically connected to the main lining and a power supply terminal for receiving power from the driving unit. assembly. 3. The method of claim 2,
The LED display assembly includes:
A sub driver coupled to an outer surface of the driving unit to assist in driving the LED,
A sub-expansion surface extending from a lower end of the sub-driver and extending to an area covering the bottom of the main board and the driver,
Further comprising an extension substrate including a sub-lining extending across an upper surface of the sub-expansion surface in electrical connection with the sub-driver,
Wherein the extension board
And a plurality of sub-via holes extending vertically through a plurality of via holes formed in the main substrate from one side of the sub-lining to electrically connect the sub-lining and the LED,
Wherein the sublining is formed to be co-located with the main lining and viewed as a lining when viewed from the bottom. 5. The method of claim 4,
On the upper surface of the sub-
Further comprising a plurality of buffer grooves extending and extending at predetermined intervals on the left and right sides of the sub-lining formed at predetermined intervals. 6. The method of claim 5,
The buffering groove
Further comprising an antistatic layer formed of a light transmissive material and coated along the inner circumferential surface of the buffer groove. 3. The method of claim 2,
The main board includes:
Wherein the main lining is laminated on a rear surface opposite to an upper surface of the LED,
On the back surface of the main substrate,
Wherein a hollow portion is formed by perforating a region excluding both the peripheral region of the main substrate, the region where the main lining is formed, the peripheral region, and the region where the via hole is formed and the peripheral region. . 8. The method of claim 7,
The hollow portion
Wherein the main substrate has a lower-overhang structure in which an opening area formed in a rear surface of the main substrate is smaller than an opening area formed in an upper surface as an opposite side surface. The method according to claim 1,
The interface between any one base and the other base,
The first base includes a first inclined surface which is inclined downward toward the inside,
And a second inclined surface formed on the other base so as to be inclined to abut the first inclined surface. The method according to claim 1,
The interface between any one base and the other base,
Wherein one of the bases includes a first inclined surface formed to be inclined downward toward the inside,
Further comprising a second inclined surface formed on the other base so as to be inclined to be symmetrical with respect to the first inclined surface with reference to a virtual boundary line extending vertically between the base and the base,
Between any one of the bases and the other base,
Wherein a triangular-shaped filling surface formed through a bottom surface connecting each end of each inclined surface with a sloped surface in close contact with the first inclined surface and the second inclined surface forms a space formed by the first inclined surface and the second inclined surface, Characterized in that it further comprises an elongated fill block to fill. 11. The method according to claim 9 or 10,
The base includes:
Further comprising a base hollow portion defining an interior region adjacent to either the first inclined surface or the second inclined surface at the base. The method according to claim 1,
Between any one extension face and the other extension face,
Characterized in that a transparent adhesive containing 2-ethylhexyl acrylate is injected to secure the expansion surface. 13. The method of claim 12,
The step of producing the adhesive may comprise:
35 to 40 parts by weight of distilled water, 5 to 10 parts by weight of a nonionic surfactant, 30 to 50 parts by weight of 2-ethylhexyl acrylate, 5 to 20 parts by weight of butyl acrylate, 20 to 30 parts by weight of methyl methacrylate, Mixing 5 to 10 parts by weight of the pre-emulsion to prepare a pre-emulsion;
And adding 0.01 to 0.1 part by weight of a reaction initiator based on the weight of the pre-emulsion to prepare an acrylic polymer.

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