KR102467411B1 - Media facade system with transparent flexible display panel - Google Patents

Abstract

The present invention is a plate-shaped flexible substrate having light transmission and flexibility; LED chips arranged two-dimensionally in plurality on the flexible substrate and radiating light forward; Terminal units that are integrally provided to protrude in multiple numbers along one side of the flexible substrate to enable bending; a driver unit provided on a rear surface of each of the terminal units and electrically connected to the LED chip for operation control by a flexible transparent conductor provided on the flexible board; and a connecting plate disposed along the arrangement direction of the driver unit, provided with a plurality of driver units at intervals along the longitudinal direction, and provided with a connecting member connected to the driver unit. It is formed by processing one side of a substrate, and the connection plate relates to a media facade system having a transparent flexible display panel made of an insulating material. The present invention can prevent a decrease in the value of the installation structure through securing transparency, enable the user to secure visibility and solar radiation, and improve safety and durability by minimizing damage caused by impact, etc. In addition to increasing the efficiency of connection with the driver unit required for driving, it can be protected from the external environment by minimizing external exposure, and by resolving the discontinuity of light expression for the connection part when connecting in large numbers, the light expression power is improved even in a large area. It has the effect of making it great.

Description

Media facade system with transparent flexible display panel {Media facade system with transparent flexible display panel}

The present invention relates to a media façade system, and more particularly, to prevent deterioration in the value of an installation structure through securing transparency, to enable users to secure visibility and solar radiation, and to minimize damage caused by impact, thereby ensuring safety and security. It relates to a media facade system having a transparent flexible display panel that not only improves durability and increases the efficiency of connection with a driver unit required for driving LEDs, but also minimizes the external exposure of the driver unit to protect it from the external environment.

In general, a media-facade expresses various advertisements or works of art by mounting a plurality of LED lighting devices on the outer wall of a building or a glass window, but by combining and contracting these LED lighting devices with each other, various advertisements or arts It allowed the work to be expressed in light.

Here, media façade is a compound word of 'Facade' and 'Media' that refers to the outer surface of a building. It implements a media function by installing LED lights on the outer wall of a building or glass windows. means to use it as a display space.

This media façade is a form of digital signage because it uses urban buildings as a medium for conveying information as well as visual beauty. .

As the smart city management techniques of smart and urbanization are spreading worldwide through the conversion paradigm that combines recent megatrends, the need to develop models that can respond to them is also increasing. Efforts to diversify citizen service contents and contribute to vitalization of the smart media industry are taking shape by establishing an efficient urban management model using the popularized smart media technology. In addition, by adding content services to the screens planned in the OSMU (One Source Multi Use) environment, common interests between service providers and users are possible, and new convergence media of screens installed between regions expands to the pre-function of building a safe society. It is a trend that is becoming

As for the prior art related to such a media facade, Korean Patent Publication No. 10-2018-0010440 discloses a “floating wall type facade structure”. It is installed at a predetermined distance from the outer wall of the building where windows and doors are installed to form a passage, and a frame on a two-dimensional plane having a plurality of divisions defined by a plurality of vertical frames, upper and lower horizontal frames, and a plurality of intermediate horizontal frames ; an upper connecting frame connected to the upper horizontal frame and extending toward the outer wall of the building; An upper fixing frame connected to the upper connecting frame and disposed in parallel with the upper horizontal frame in contact with the wall; It consists of an upper horizontal frame and an awning installed on the upper end of the upper fixed frame: at least some of the plurality of sections of the frame are formed as glass windows and the remaining sections are formed as louver-mounted grill windows.

However, in this prior art, among the basic base materials, the glass material is an amorphous (amorphous) solid that hardly transmits moisture and air, and is expensive and brittle depending on the characteristics of light transmission, and has the disadvantage of being very ductile. Due to the low level, if any damage is applied, there is a limit in that the whole is broken at the moment, so there is a problem in implementing the desired screen.

In addition, in the prior art, it is difficult to implement full-scale light transmission due to the louver mounting and frame structure. In fact, when an electronic display board for advertising is installed in a building, real estate value decreases as much as internal light cannot enter, so transparency is required. There is a problem that there is no consideration for this.

In addition, the prior art cannot implement curvature as needed due to its rigid configuration, and does not consider the efficiency of installation and connection of driver units necessary for driving LEDs. Due to external exposure of such driver units, It had a problem of insufficient protection from the external environment.

In addition, the prior art has a problem of causing a discontinuity in light expression, resulting in a defect in light expression power, because the omitted section of the LED for the connection portion is larger than the LED arrangement interval when connecting a plurality.

In order to solve the problems of the prior art described above, the present invention prevents a decrease in the value of the installation structure through securing transparency, enables the user to secure visibility and solar radiation, and minimizes damage caused by impact to ensure safety. In addition to improving durability, increasing the efficiency of connection with the driver unit required for driving LED, minimizing the external exposure of the driver unit to protect it from the external environment, and discontinuity of light expression for the connection part when connecting multiple By solving the problem, it has the purpose of making the optical expressive power excellent even in a large area.

In order to solve the above problems, according to one aspect of the present invention, a plate-shaped flexible substrate having light transmittance and flexibility; LED chips arranged two-dimensionally in plurality on the flexible substrate and radiating light forward; Terminal units that are integrally provided to protrude in multiple numbers along one side of the flexible substrate to enable bending; a driver unit provided on a rear surface of each of the terminal units and electrically connected to the LED chip for operation control by a flexible transparent conductor provided on the flexible board; and a connecting plate disposed along the arrangement direction of the driver unit, provided with a plurality of driver units at intervals along the longitudinal direction, and provided with a connecting member connected to the driver unit. It is formed by processing one side of a substrate, and the connection plate is provided with a media facade system having a transparent flexible display panel made of an insulating material.

In the flexible board, a pair having the terminal parts in opposite directions may bond opposite sides of the terminal parts to each other to form an extension board by extending left and right, so that the connection plates are provided on both sides of the extension board.

The flexible board may extend upward and downward to form an extension board by bonding sides other than the side where the terminal parts are formed, so that connection plates may be arranged in a row along one side of the extension board.

An encapsulant provided on the connection plate to block the driver unit from the outside may be further included.

The connection plate may be disposed in a flat form with the flexible substrate.

A distance from an LED chip closest to the terminal unit to an outer portion of the connection plate may be within 40 to 50% of a distance between the LED chips in a direction orthogonal to the connection plate.

The connection plate may be disposed to be inclined backward with respect to the flexible substrate by bending the terminal portion from the flexible substrate.

According to the media façade system equipped with a transparent flexible display panel according to the present invention, it is possible to prevent a decrease in the value of an installation structure through securing transparency, to ensure the user's visibility and solar radiation, and to prevent damage due to impact, etc. By minimizing, safety and durability can be improved, the efficiency of connection with the driver unit required for LED driving is increased, and the external exposure of the driver unit can be minimized to protect it from the external environment. By resolving the discontinuity of light expression for the site, it has the effect of making the light expression power excellent even in a large area.

1 is a front view showing a media facade system having a transparent flexible display panel according to a first embodiment of the present invention;
2 is an enlarged view of part A of FIG. 1;
Figure 3 is a top cross-sectional view of Figure 2,
4 is a perspective view showing a media facade system having a transparent flexible display panel according to a second embodiment of the present invention;
5 is a plan cross-sectional view showing terminals in a media facade system having a transparent flexible display panel according to a second embodiment of the present invention.

Since the present invention may have various embodiments by various changes, it will be described by showing specific embodiments in the drawings as examples. In addition, it should be understood that the present invention is not limited to these specific examples, and includes all changes, equivalents, or substitutes included in the technical spirit of the present invention.

Hereinafter, the embodiments according to the present invention will be described in detail with reference to the accompanying drawings, and the same reference numerals are assigned to the same or corresponding components regardless of reference numerals, and redundant descriptions thereof are omitted. do it with

1 is a front view showing a media facade system having a transparent flexible display panel according to a first embodiment of the present invention, FIG. 2 is an enlarged view of part A of FIG. 1, and FIG. It is a flat cross section.

1 to 3, a media facade system 100 having a transparent flexible display panel according to an embodiment of the present invention includes a flexible substrate 110, an LED chip 120, and a terminal unit 130. , the driver unit 140 and the connection plate 150 may be included.

The flexible substrate 110 has light transmittance and flexibility, and is formed in a plate shape. In this way, a transparent deformable plastic may be used to have light transmittance and flexibility at the same time. For example, a transparent polyimide (CPI, Colorless Polyimide) film may be used. Can be used as a main ingredient. Transparent polyimide is a plastic material that is transparent like glass and has excellent strength. It can change its shape freely, does not break easily even when pressure is applied, and has excellent thermal stability, excellent mechanical strength, chemical resistance, low-temperature characteristics, electrical insulation, It has dimensional stability (the property of maintaining its original shape) and is a high molecular compound (polymer) made by gathering several imides. Since the flexible substrate 110 may be applied with various materials other than the transparent polyimide film as long as they have light transmittance, flexibility, and required strength, they are not limited to these examples.

The LED chips 120 are two-dimensionally arranged in plurality on the flexible substrate 110 and irradiate light forward. For example, they may be arranged vertically and horizontally on the flexible substrate 110 . In addition, multi-color LEDs such as RGB LEDs may be used as the LED chip 120 to output light of various colors according to a control signal.

The LED chip 120 may be configured to be attached to the front surface of the flexible substrate 110, but as another example, considering that the flexible substrate 110 is transparent, it is attached to the rear surface of the flexible substrate 110 to emit light forward. Although it can be irradiated, it shows that it is disposed on the front surface of the flexible substrate 110 in this embodiment in consideration of the light irradiation efficiency.

The terminal unit 130 is integrally provided so as to protrude in multiple numbers along one side of the flexible substrate 110, thereby enabling bending. The terminal unit 130 may be protruded in plurality along one side of the flexible substrate 110 by processing such as molding or cutting.

The driver unit 140 is provided on the rear surface of each terminal unit 130 and is electrically connected to the LED chip 120 for operation control by a flexible transparent conductor provided on the flexible substrate 110 . The driver unit 140 controls each of the LED chips 120 together with supplying power required for operation, so that the LED chips 120 on the flexible substrate 110 can display a desired shape or image. In addition, one driver unit 140 does not necessarily need to be installed for each terminal unit 130, and may be installed in multiple units for each terminal unit 130, if necessary.

Each of the driver units 140 may distribute and control a plurality of LED chips 120, for example, may be configured to control the LED chips 120 constituting a column in which the terminal unit 130 is located. In addition, flexible and transparent conductors electrically connecting the driver unit 140 and the LED chip 120 include, for example, ITO (Indium Tin Oxide) or CNT (Carbon Nano Tube), as well as various conductors with flexibility and transparency. It can be used, it is desirable to have desired electrical conductivity by satisfying the requirements of sheet resistance and specific resistance required for transmission of signals and power, and to satisfy at least 80% or more of transmittance in the visible ray region as light transmittance.

The connection plate 150 is placed along the arrangement direction of the driver units 140, so that the driver units 140 are installed in plural at intervals along the longitudinal direction, and the connection member 151 connected to the driver unit 140 is installed The connection plate 150 is preferably made of an insulating material such as plastic, but is not necessarily limited thereto, and does not require insulation as long as the driver unit 140 itself has sufficient electrical insulation. In addition, various conductive materials including wires or electrodes may be used as the connection member 151 .

The connection plate 150 may be disposed in a flat form with the flexible substrate 110 as in the present embodiment. Accordingly, a structure that is compact in terms of thickness can be provided. At this time, by arranging at least three or more flexible substrates 110 left and right, when each terminal part of the flexible substrate 110 is adjacent to each other, in order not to impair the continuity of light expression due to them, the terminal part 130 The distance (L; shown in FIG. 1) from the nearest LED chip 120 to the outer portion of the connection plate 150 is the distance between the LED chips 120 in the direction perpendicular to the connection plate 150 (D; FIG. 1) is preferably within 40 to 50%. Therefore, when the connection plate 150 is in contact with other connection plates 150, the distance occupied by these connection plates 150 is equal to or smaller than the distance between the LED chips 120, so that the inactive area of light is constant during light expression. Thus, natural light expression can be made possible. Here, the distance (L; shown in FIG. 1) from the LED chip 120 closest to the terminal unit 130 to the outer portion of the connection plate 150 is the direction perpendicular to the connection plate 150, and the distance between the LED chips 120 With respect to the distance (D; shown in FIG. 1), if it is less than 40%, the width of the connection plate 150 and the terminal unit 130 is excessively reduced, which is disadvantageous to the implementation of the connection structure, and if it exceeds 50%, the connection plate ( 150) are disposed next to each other, the desired continuity of light expression cannot be satisfied.

On the other hand, in the flexible substrate 110, as in the present embodiment, a pair of terminal units 120 in opposite directions bond opposite sides of the terminal units 120 to each other to extend left and right to form an expansion substrate, thereby forming an expansion substrate on both sides of the expansion substrate. Connection plates 150 may be provided respectively. Therefore, even if the flexible substrates 110 are bonded to each other left and right to form an extended substrate, the LED chip 120 is controlled dually through the driver units 140 provided on the connection plates 150 on both sides, respectively. By doing this, by minimizing the delay time when driving the LED chip 120, it is possible to enable stable light expression.

In addition, as in the present embodiment, the flexible board 110 extends vertically by bonding sides other than the side where the terminal unit 130 is formed to form an extension board, so that the connection plates 150 are aligned along one side of the extension board. can be made available. Accordingly, the flexible substrate 110 can be easily expanded in the vertical direction while maintaining the connection. Here, the mutual bonding of the flexible substrates 110 may use an adhesive or a fitting structure between them.

An encapsulant 160 may be provided on the connection plate 150 to block the driver unit 140 from the outside. Here, the encapsulant 160 may be not only an encapsulation material used in a chip packaging process, but also a material or cover to block external moisture or dust. In addition, the encapsulant 160 may be provided to cover only the driver unit 140 or may be provided to cover the connection member 151 together with the driver unit 140 .

4 is a perspective view showing a media facade system having a transparent flexible display panel according to a second embodiment of the present invention, and FIG. 5 is a media facade system having a transparent flexible display panel according to a second embodiment of the present invention. It is a planar cross-sectional view showing the terminal part in .

4 and 5, a media facade system 200 having a transparent flexible display panel according to a second embodiment of the present invention includes a flexible substrate 210, an LED chip 220, and a terminal unit 230 ), the driver unit 240 and the connection plate 250, and may further include an encapsulant 260, all of which are arrangements of the connection plate 250 and the terminal unit 230. Except for , since it is the same as the corresponding components in the media facade system 100 having a transparent flexible display panel according to the first embodiment of the present invention, overlapping descriptions will be omitted and differences will be mainly described.

The connection plate 250 may be disposed to be inclined backward with respect to the flexible substrate 210 by bending the terminal portion 230 from the flexible substrate 210 . Therefore, even if a large area is implemented by arranging and extending a plurality of flexible substrates 210, the area occupied by contact between the connection plate 250 or the terminal unit 230 can be minimized, thereby minimizing the inactive area for light expression.

According to the media façade system having a transparent flexible display panel according to the present invention, it is possible to prevent a decrease in the value of an installation structure through securing transparency, to ensure the user's visibility and solar radiation, and to be resistant to impact, etc. By minimizing damage caused by damage, safety and durability can be improved.

In addition, according to the present invention, the efficiency of connection with the driver unit required for driving the LED can be increased, and external exposure can be minimized to protect it from the external environment. , it is possible to achieve excellent optical expressiveness even in a large area.

Although the present invention has been described with reference to the accompanying drawings, various modifications may be made without departing from the spirit of the present invention. Therefore, the scope of the present invention should not be limited to the above-described embodiments and should not be defined, but should be defined by the claims and equivalents of these claims.

110,210: flexible substrate 120,220: LED chip
130,230: terminal part 140,240: driver unit
150,250: connection plate 151,251: connection member
160,260: Encapsulant

Claims (7)

A plate-shaped flexible substrate having light transmittance and flexibility;
LED chips arranged two-dimensionally in plurality on the flexible substrate and radiating light forward;
Terminal units that are integrally provided to protrude in multiple numbers along one side of the flexible substrate to enable bending;
a driver unit provided on a rear surface of each of the terminal units and electrically connected to the LED chip for operation control by a flexible transparent conductor provided on the flexible board; and
A connection plate, which is placed along the arrangement direction of the driver unit, is installed in plural at intervals along the length direction of the driver unit, and is provided with a connection member connected to the driver unit,
The terminal part is formed by processing one side of the flexible substrate,
The connection plate is made of an insulating material,
A media façade system equipped with a transparent flexible display panel. The method of claim 1,
The flexible substrate,
A pair having the terminal parts in opposite directions bond the opposite sides of the terminal parts to each other and extend left and right to form an extension board, so that the connection plates are provided on both sides of the extension board, respectively. Equipped with a transparent flexible display panel media façade system. The method of claim 1,
The flexible substrate,
A media façade system having a transparent flexible display panel, wherein sides other than the side where the terminal unit is formed are bonded to each other to extend vertically to form an extension board, so that connection plates are provided in a row along one side of the extension board. The method according to any one of claims 1 to 3,
A media facade system having a transparent flexible display panel, further comprising an encapsulant provided on the connection plate to block the driver unit from the outside. The method according to any one of claims 1 to 3,
The connection plate,
A media facade system having a transparent flexible display panel disposed in a flat form with the flexible substrate. The method of claim 5,
The distance from the LED chip closest to the terminal part to the outer part of the connection plate,
A media facade system having a transparent flexible display panel within 40 to 50% of the distance between the LED chips in a direction orthogonal to the connection plate. The method according to any one of claims 1 to 3,
The connection plate,
A media facade system having a transparent flexible display panel disposed so as to be inclined backward with respect to the flexible substrate by bending of the terminal part from the flexible substrate.

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