KR20220107539A - Media facade system with transparent flexible display panel - Google Patents

Abstract

The present invention relates to a media facade system having a transparent flexible display panel. The system includes: 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 substrate; and a connection plate placed along the arrangement direction of the driver unit, provided with a plurality of driver units at intervals along the longitudinal direction, and having a connection member connected to the driver unit installed thereon. According to the present invention, by securing transparency, it is possible to prevent a decrease in the value of the installed structure, and a user's visibility and solar radiation can be secured. By minimizing damage caused by impact, etc., it is possible to improve durability with safety. The efficiency of connection with the driver unit required for LED driving is increased. Also, protection from the external environment is secured by minimizing external exposure. By resolving the discontinuity of light expression for the connection part when connecting in large numbers, excellent light expression is secured even on a large area.

Description

Media facade system with transparent flexible display panel

The present invention relates to a media façade system, and more particularly, to prevent a decrease in the value of an installation structure by securing transparency, to enable the user to secure visibility and insolation, and to minimize damage due to impact, etc. It relates to a media facade system having a transparent flexible display panel that improves durability together, increases the efficiency of connection with a driver unit necessary for driving an LED, and minimizes external exposure of the driver unit to protect it from the external environment.

In general, a media-facade is equipped with a number of LED lighting devices on the exterior wall of a building or a glass window to express various advertisements or works of art. This was done so that the work could be expressed through light.

Here, media façade is a compound word of 'facade' and 'media', which refers to the exterior of a building. is used as a display space.

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

As smart urban management techniques such as smart and urbanization are spreading around the world through a transformation paradigm that converges recent megatrends, the need to develop a model that can respond to them is also increasing. By building an efficient city management model using this popular smart media technology, efforts are being made to diversify service contents for citizens and to contribute to the revitalization of the smart media industry. In addition, by adding content services to the planned screen in the OSMU (One Source Multi Use) environment, the common benefit of service providers and users is possible. It is a trend that is becoming

The prior art related to such a media façade is disclosed in Korean Patent Application Laid-Open No. 10-2018-0010440 "Temporary wall-type façade structure". This is a two-dimensional planar frame having a plurality of sections defined by a plurality of vertical frames, upper and lower horizontal frames, and a plurality of intermediate horizontal frames, and is installed to be spaced apart from the outer wall of a building in which windows and doors are installed by a predetermined distance to form a passage; ; an upper connection frame connected to the upper horizontal frame and extending toward the outer wall of the building; an upper fixed frame connected to the upper connection frame and disposed in contact with the wall parallel to the upper horizontal frame; It consists of an awning installed at the upper end of the upper horizontal frame and the upper fixed frame: at least some of the plurality of sections of the frame are formed of a glass window and the remaining sections are formed of a louver mounted grill window.

However, in this prior art, among the basic base materials, the glass material is an amorphous (amorphous) solid that hardly transmits moisture and air, is expensive depending on the light-transmitting characteristic, and has the disadvantages of being easy to break, and very ductile. Due to the low level, if even a little damage is applied, there is a limit that the whole is broken in an instant, so there is a problem in realizing the desired screen.

In addition, in the prior art, it is difficult to implement full-scale light transmittance due to the louver installation and frame structure. In fact, when an electric signboard for advertisement is installed in a building, the real estate value decreases as much as the light inside does not enter, even though it is necessary to secure transparency There is a problem that there is no consideration for this.

In addition, the prior art does not consider the efficiency of the installation and connection of the driver unit required for driving the LED, etc., because it is impossible to implement the curvature as necessary due to the rigid configuration, and due to external exposure of the driver unit, etc., There was a problem in that the protection from the external environment was insufficient.

In addition, the prior art had a problem in that when a plurality of connections were made, the omission section of the LED for the connection portion was larger than the LED arrangement interval, thereby causing a discontinuity in the light expression, thereby causing a defect in the light expression power.

In order to solve the problems of the prior art, the present invention prevents a decrease in the value of the installation structure through securing of transparency, enables the user to secure visibility and insolation, and minimizes damage due to impact, etc. It not only improves the durability with the driver unit and increases the efficiency of the connection with the driver unit necessary for driving the LED, but also protects the driver unit from the external environment by minimizing the external exposure of the driver unit. By solving the problem, it has the purpose of making it excellent in light expression even in a large area.

In order to solve the above problems, according to an 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 irradiating light forward; a terminal unit which is provided integrally so as 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 terminals and electrically connected to the LED chip for operation control by a flexible transparent conductor provided on the flexible substrate; and a connection plate placed along the arrangement direction of the driver unit so that a plurality of the driver units are installed at intervals along the longitudinal direction, and a connection member connected to the driver unit is installed; a transparent flexible display panel comprising a A media façade system is provided.

In the flexible substrate, a pair having the terminal portions in opposite directions is extended to the left and right by bonding opposite sides of the terminal portion to each other to form an expansion substrate, so that the connection plates are provided on both sides of the expansion substrate, respectively.

The flexible substrate may extend vertically by bonding sides other than the side on which the terminal part is formed to form an expansion substrate, so that the connection plates are provided in a line along one side of the expansion substrate.

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.

The distance from the LED chip closest to the terminal to the outer side of the connection plate may be within 40 to 50% of the 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 having a transparent flexible display panel according to the present invention, it is possible to prevent a decrease in the value of the installation structure through securing of transparency, it is possible to ensure visibility and insolation of the user, and damage due to impact, etc. It is possible to improve safety and durability by minimizing By resolving the discontinuity of light expression for a part, it has the effect of making it excellent in light expression 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 plan cross-sectional view of Figure 2,
4 is a perspective view illustrating a media facade system having a transparent flexible display panel according to a second embodiment of the present invention;
5 is a plan sectional view illustrating a terminal unit 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 with various modifications, specific embodiments will be described with reference to the drawings as an example. In addition, it should be understood that the present invention is not limited to these specific embodiments, and includes all modifications, equivalents or substitutes included in the technical spirit of the present invention.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings, and the same reference numbers are assigned to the same or corresponding components regardless of reference numerals, and overlapping description thereof will be 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. 3 is a view of FIG. It is a flat section.

1 to 3 , the 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 . , it may include a driver unit 140 and a connection plate 150 .

The flexible substrate 110 has light transmittance and flexibility, and is formed in a plate shape. As such, 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. It can be used as the main material. Transparent polyimide is a plastic material that is transparent and strong like glass. It can change shape freely and is not easily broken even when pressure is applied, but also has excellent thermal stability, excellent mechanical strength, chemical resistance, low temperature characteristics, It has dimensional stability (the property of maintaining its original shape), and is a high molecular compound (polymer) made of several imides. In addition to the transparent polyimide film, the flexible substrate 110 is not limited to this example, since various materials may be applied as long as it has light transmittance, flexibility, and required strength.

The LED chips 120 are two-dimensionally arranged in multiple numbers on the flexible substrate 110 and irradiate light forward, for example, may be arranged vertically and horizontally on the flexible substrate 110 . In addition, the LED chip 120 may be a multi-color LED such as RGB LED 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. It can be irradiated, but in consideration of light irradiation efficiency, in this embodiment, it is shown that it is disposed on the front surface of the flexible substrate 110 .

The terminal part 130 is provided integrally so as to protrude in multiple numbers along one side of the flexible substrate 110 so that bending is possible. The terminal part 130 may be provided to protrude in multiple numbers 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 of the terminal units 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 while supplying power required for operation, so that the LED chip 120 on the flexible substrate 110 displays a desired shape or image. Also, one driver unit 140 does not necessarily need to be installed per terminal unit 130 , and a plurality of driver units 140 may be installed per terminal unit 130 as necessary.

Each of the driver units 140 may distribute and control a plurality of LED chips 120 . For example, the driver unit 140 may be configured to control the LED chips 120 forming a column in which the terminal unit 130 is located. In addition, the flexible transparent conductor electrically connecting the driver unit 140 and the LED chip 120 includes, for example, ITO (Indium Tin Oxide) or CNT (Carbon Nano Tube), and various conductors having flexibility and transparency. It can be used, and it is preferable to have desired electrical conductivity by satisfying the sheet resistance and resistivity requirements required for signal and power transmission, 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 unit 140 so that a plurality of the driver units 140 are installed at intervals along the longitudinal direction, and the connection member 151 connected to the driver unit 140 is provided. is installed The connection plate 150 is preferably made of an insulating material such as plastic, but is not limited thereto, and does not require insulation if the electrical insulation of the driver unit 140 itself is sufficient. In addition, the connection member 151 may be made of various conductive materials, including wires or electrodes.

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

On the other hand, in the flexible substrate 110, as in this embodiment, a pair of terminal portions 120 in opposite directions are bonded to each other on opposite sides of the terminal portion 120 to extend left and right to form an expansion substrate, so that on both sides of the expansion substrate Connection plates 150 may be provided, respectively. Therefore, even if the flexible substrate 110 is bonded to each other left and right to form an expansion substrate, the LED chip 120 can be controlled in a dual manner through the driver units 140 provided on the connection plates 150 on both sides, respectively. By doing so, it is possible to achieve stable light expression by minimizing the delay time when the LED chip 120 is driven.

In addition, as in this embodiment, the flexible substrate 110 is extended vertically by bonding the sides except for the side on which the terminal part 130 is formed to form an expansion substrate, so that the connection plate 150 is aligned along one side of the expansion substrate. can be made available. Therefore, it is possible to easily expand the flexible substrate 110 in the vertical direction while the connection is maintained. Here, the mutual bonding of the flexible substrate 110 may use an adhesive or use a fitting structure between each other.

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 a material or cover to block external moisture or dust as well as an encapsulating material used in the chip packaging process. 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 illustrating 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 plan sectional view showing the terminal part.

4 and 5 , the media facade system 200 having a transparent flexible display panel according to the 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 may be included, and further, may further include an encapsulant 260 , and all these configurations are the arrangement of the connection plate 250 and the terminal part 230 . Except for , since the corresponding components in the media facade system 100 having the transparent flexible display panel according to the first embodiment of the present invention are the same, the overlapping description will be omitted, and the 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 of the terminal part 230 from the flexible substrate 210 . Accordingly, even if a large area is realized by arranging and extending the flexible substrate 210 in plurality, the area occupied by the connection plate 250 or the terminal unit 230 in contact with each other can be minimized, thereby minimizing the inactive area of optical expression.

According to the media façade system having the transparent flexible display panel according to the present invention as described above, it is possible to prevent a decrease in the value of the installation structure through securing of transparency, it is possible to secure the visibility and insolation of the user, and it is possible to secure the impact, etc. It is possible to improve durability as well as safety by minimizing damage caused by

In addition, according to the present invention, it is possible to not only increase the efficiency of the connection with the driver unit necessary for driving the LED, but also protect it from the external environment by minimizing external exposure, and by resolving the discontinuity of light expression for the connection part when connecting in multiple numbers. , it can be made to have excellent light expression even in a large area.

Although the present invention has been described with reference to the accompanying drawings as described above, 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, but should be defined by the claims and their equivalents.

110,210: flexible substrate 120,220: LED chip
130,230: terminal 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 irradiating light forward;
a terminal unit which is provided integrally so as 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 terminals and electrically connected to the LED chip for operation control by a flexible transparent conductor provided on the flexible substrate; and
a connection plate disposed along the arrangement direction of the driver units so that a plurality of the driver units are installed at intervals along the longitudinal direction, and a connection member connected to the driver unit is installed;
Including, a media facade system having a transparent flexible display panel. The method according to claim 1,
The flexible substrate is
A pair of the terminal parts in opposite directions are joined to each other on opposite sides of the terminal part to extend left and right to form an expansion board, so that the connection plates are provided on both sides of the expansion board, respectively, having a transparent flexible display panel Media Facade System. The method according to claim 1,
The flexible substrate is
A media façade system having a transparent flexible display panel, wherein the connection plates are provided in a line along one side of the expansion board by bonding the sides except for the side on which the terminal part is formed and extending vertically to form an expansion board. 4. The method according to any one of claims 1 to 3,
Media façade system having a transparent flexible display panel, further comprising an encapsulant provided on the connection plate to block the driver unit from the outside. 4. The method according to any one of claims 1 to 3,
The connection plate is
A media facade system having a transparent flexible display panel, which is arranged in a flat form with the flexible substrate. 6. The method of claim 5,
The distance from the LED chip closest to the terminal to the outer part of the connection plate,
Media façade system having a transparent flexible display panel that is within 40 to 50% of the distance between the LED chips in a direction orthogonal to the connection plate. 4. The method according to any one of claims 1 to 3,
The connection plate is
Media facade system having a transparent flexible display panel, which is arranged to be inclined backward with respect to the flexible substrate by bending the terminal part from the flexible substrate.

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