WO2020022692A1 - Dispositif d'affichage à del utilisant un module d'affichage à del - Google Patents

Dispositif d'affichage à del utilisant un module d'affichage à del Download PDF

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Publication number
WO2020022692A1
WO2020022692A1 PCT/KR2019/008809 KR2019008809W WO2020022692A1 WO 2020022692 A1 WO2020022692 A1 WO 2020022692A1 KR 2019008809 W KR2019008809 W KR 2019008809W WO 2020022692 A1 WO2020022692 A1 WO 2020022692A1
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WO
WIPO (PCT)
Prior art keywords
led display
display device
magnetic frame
viscoelastic
magnet
Prior art date
Application number
PCT/KR2019/008809
Other languages
English (en)
Korean (ko)
Inventor
유태경
김대원
양준석
Original Assignee
주식회사 루멘스
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020180085729A external-priority patent/KR20200011087A/ko
Priority claimed from KR1020190029916A external-priority patent/KR102617484B1/ko
Application filed by 주식회사 루멘스 filed Critical 주식회사 루멘스
Publication of WO2020022692A1 publication Critical patent/WO2020022692A1/fr

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
    • H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/15—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/02—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
    • H01L33/20—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages

Definitions

  • the present invention relates to a display device using the LED display module.
  • the present invention also relates to a display device using the flexible LED display module.
  • the present invention also relates to an LED display device using an extended support frame assembly in which a plurality of support frames are assembled in a desired number.
  • the micro LED display device includes a plurality of micro LED modules having a plate shape.
  • the micro LED module includes a mount substrate and a plurality of micro LEDs mounted on the mount substrate.
  • the micro LEDs include a red micro LED, a green micro LED and a blue micro LED that can form pixels.
  • micro LEDs included in the micro LED module have a very small size of several to several hundred micrometers size, even if the position of the micro LED module is slightly distorted, the display quality is greatly deteriorated. Because of this, micro
  • the LED display device may be suspended from the ceiling or attached to a wall.
  • the LED display device includes a steel frame and a plurality of LED display modules attached to one surface of the steel frame.
  • LED display modules include a printed circuit board (PCB) and a plurality of LEDs mounted on the PCB. It is difficult to implement various types of display devices in which LEDs are mounted on a PCB.
  • a flexible LED display module having a plurality of LEDs mounted on a flexible circuit board has been developed.
  • an adhesive material is interposed between the steel frame and the flexible circuit board of the flexible LED display module.
  • the thickness of the adhesive material may not be evenly applied to the surface of the steel frame of the adhesive material.
  • the thickness nonuniformity as described above degrades the color uniformity / color reproducibility of the display.
  • the adhesive force of the adhesive material is lowered due to the heat generated during the LED operation, thereby causing a serious problem that the LED display module falls from the steel frame.
  • the conventional LED display device is used to be suspended from the ceiling with a wire or fixed to the wall with a fastener, there is a risk that the wire or fastener does not bear the weight of the steel frame and falls.
  • the prior art has a flexible circuit board on which the LEDs are mounted, but has a disadvantage in that the elastic resilience after deformation is poor and the durability is not good.
  • the present invention solves the problem (s) of the prior art.
  • the problem to be solved by the present invention includes a flexible LED display module having a sufficient viscoelasticity and flexibility, without a large reduction in the flexibility and viscoelasticity of the flexible LED display module, and without the use of adhesive materials having various problems,
  • the present invention provides an LED display device in which a display module is stably attached to a frame.
  • the problem to be solved by the present invention by fastening the support frame and the support frame to the LED modules, the LED modules can be fixed to the correct position, as well as the support frame of the LED modules to provide an LED display device, which can ensure excellent access to the mount substrate and excellent heat dissipation performance.
  • Another problem to be solved by the present invention is to support the LED modules from the rear
  • LED display device comprises a magnetic frame having a property of attaching at least a portion of the front surface to the magnet; And at least one flexible LED display module attached to a front surface of the magnetic frame, wherein the flexible LED display module includes at least one flexible circuit board, LEDs arranged on an upper surface of the flexible circuit board, An upper viscoelastic part and a lower viscoelastic part are coupled to each other with the flexible circuit board interposed therebetween, and the lower viscoelastic part includes a rubber magnet attached to the magnetic frame.
  • the upper viscoelastic portion includes an upper viscoelastic film having LED holes exposing the LEDs.
  • the flexible circuit board includes a folded edge portion at at least one end of both ends, a controller portion for controlling the LEDs is formed under the folded edge portion.
  • the lower viscoelastic portion includes a lower viscoelastic film directly bonded to the upper viscoelastic portion, wherein the rubber magnet is a sheet-type rubber magnet formed on the lower surface of the lower viscoelastic film.
  • the lower viscous portion includes a lower viscoelastic layer directly bonded to the upper viscoelastic portion and formed with a plurality of magnet holes, wherein the rubber magnet is a block-type rubber magnet inserted into each of the magnet holes.
  • the block-type rubber magnet is attached to the lower surface of the flexible circuit board, when the lower viscoelastic film is combined with the upper viscoelastic portion, the block-type rubber magnets are inserted into the magnet holes.
  • the lower viscoelastic portion is preferably a sheet-shaped rubber magnet bonded directly to the upper viscoelastic portion.
  • the sheet-shaped rubber magnet and the upper viscoelastic portion may be bonded to each other by being compressed with the flexible circuit board interposed therebetween.
  • the magnetic frame may be formed of a metal material attached to the rubber magnet.
  • the magnetic frame may include a plastic frame body in which block holes are formed, and block type magnetic materials inserted into the block holes.
  • the block type magnetic bodies may be block type magnets.
  • the magnetic frame may include a plastic frame body and a steel sheet attached to the surface of the plastic frame body.
  • the front surface of the magnetic frame includes a curved surface
  • the flexible LED display modules are attached to the curved surface to form a curved display screen.
  • the magnetic frame is formed with a connection block for fixing the magnetic frame to the ceiling or to the wall using a wire or fastener.
  • an LED display device includes: a first magnetic frame and a second magnetic frame having at least a portion of a front surface attached to a magnet, and having rear surfaces coupled to each other; First flexible LED display modules attached to a front surface of the first magnetic frame; Second flexible LED display modules attached to a front surface of the second magnetic frame and facing in a direction opposite to the first flexible LED display modules, wherein the first flexible LED display modules and the second flexible LED
  • Each of the display modules includes at least one flexible circuit board, LEDs arranged on an upper surface of the flexible circuit board, and an upper viscoelastic part and a lower viscoelastic part coupled to each other between the flexible circuit board and the lower part.
  • the viscoelastic portion includes a rubber magnet attached to the magnetic frame.
  • At least one of the first magnetic frame and the second magnetic frame is formed entirely or in part of a magnet so that the first magnetic frame and the second magnetic frame are attached to each other by a magnetic force.
  • the first magnetic frame and the second magnetic such that the first connection block formed on the rear surface of the first magnetic frame and the second connection block formed on the rear surface of the second magnetic frame contact each other.
  • the frames are combined.
  • the space between the rear surface of the first magnetic frame and the rear surface of the second magnetic frame is formed by the protrusion structure of the first connection block and the second connection block.
  • a lightweight rubber magnet is provided as part or all of the lower viscoelastic portion protecting the lower portion of the flexible circuit board without significantly lowering the flexibility of the flexible circuit board, and the rubber magnet is provided in the magnetic frame. It is attached to implement the LED display device.
  • the LED display device implemented according to the embodiments of the present invention eliminates the use of an adhesive material that caused non-uniform attachment of the LED display modules through the use of a rubber magnet, so that the LED display modules can be attached to the magnetic frame with a uniform thickness. In this way, color uniformity / color reproducibility is greatly improved.
  • a lightweight LED display device may be implemented using a lightweight magnetic frame.
  • the LED display device implemented as described above may be safely suspended from the ceiling for a long time, and may be safely attached to a wall and used for a long time.
  • the rear surface of the magnetic frame may be attached to the rear surface of another magnetic frame, thereby providing a double-sided display screen.
  • the lower viscoelastic portion formed by directly attaching a sheet-type rubber magnet to the lower viscoelastic portion formed by inserting a block magnet into the magnet holes formed in the lower viscoelastic film or the upper viscoelastic portion may reduce the thickness of the LED display module.
  • FIG. 1 is a perspective view illustrating an LED display device according to embodiment 1-1 of the present invention.
  • FIG. 2 is an exploded perspective view showing an LED display device according to embodiment 1-1 of the present invention.
  • FIGS. 1 and 2 are schematic cross-sectional views of the LED display device illustrated in FIGS. 1 and 2.
  • FIGS. 1 to 3 are cross-sectional views for describing a flexible LED display module that may be used in the LED display apparatus of FIGS. 1 to 3.
  • FIG. 5 is a perspective view for explaining the LED display device according to the embodiment 1-2 of the present invention.
  • FIG. 6 is a schematic cross-sectional view of the LED display device according to the embodiment 1-3 of the present invention.
  • FIG. 7 is a cross-sectional view for describing the first to fourth embodiments of the present invention.
  • FIG. 8 is a cross-sectional view for describing an exemplary embodiment 1-5 of the present invention.
  • FIG. 9 is a cross-sectional view for explaining a first embodiment to sixth embodiments of the present invention.
  • FIG. 10 is a cross-sectional view for describing an embodiment 1-7 of the present invention.
  • FIG. 11 is a perspective view illustrating an LED display device according to an embodiment 1-8 of the present invention.
  • FIG. 12 is an exploded perspective view illustrating an LED display device according to an embodiment 1-8 of the present invention.
  • FIG. 13 is a perspective view illustrating a flat panel micro LED display device according to Embodiment 2-1 of the present invention.
  • FIG. 14 is an exploded perspective view showing a flat panel type micro LED display device according to Embodiment 2-1 of the present invention from the front.
  • FIG. 15 is an exploded perspective view illustrating a flat panel type micro LED display device according to Embodiment 2-1 of the present invention.
  • FIG. 16 is a view for explaining a support frame of the micro LED display device shown in FIGS. 13 to 15 and stud fixing holes provided in the support frame.
  • 17 is a view for explaining a configuration in which the stud provided in the micro LED module is fixed to the stud fixing hole.
  • FIG. 18 is a diagram illustrating various ways in which studs are mounted to a mount substrate as an example.
  • FIG. 19 is a view for explaining another example of a module fixing structure including a stud and a stud fixing hole provided in the micro LED module.
  • 20 is an exploded perspective view showing a front surface of the micro LED display device of the curved plate shape according to the embodiment 2-2 of the present invention.
  • FIG. 21 is an exploded perspective view showing the micro LED display device according to the embodiment 2-2 of the present invention from the rear.
  • FIG. 22 is a rear view showing the back of the expandable support frame when subsequently attached according to the embodiment 2-3 of the present invention.
  • FIG. 23 is a rear view illustrating a matrix arrangement in which a plurality of support frames having four sides are connected to each other according to an embodiment 2-3 of the present invention.
  • FIG. 24 is a diagram for describing a first connection block connecting corners of four support frames according to embodiment 2-3 of the present invention.
  • FIG. 25 is a view for explaining a second connection block connecting left and right corners of two left and right support frames adjacent only to the left and right without supporting frames adjacent to the upper side or the lower side according to the embodiment 2-3 of the present invention.
  • FIG. 26 is a view for explaining a third connection block connecting upper and lower corners of two upper and lower support frames that are adjacent only up and down, without a support frame adjacent to the left or the right according to the embodiment 2-3 of the present invention.
  • FIG. 27 is a view illustrating an assembly of a first connection block, a second connection block, a third connection block, and support frames assembled by them according to the embodiment 2-3 of the present invention.
  • FIG. 1 is a perspective view showing an LED display device according to a first-first embodiment of the present invention
  • Figure 2 is an exploded perspective view showing the LED display device according to a first-first embodiment of the present invention
  • Figure 3 1 and 2 are schematic cross-sectional views of the LED display device shown in FIG. 2
  • FIG. 4 is a cross-sectional view illustrating a flexible LED display module that can be used in the LED display devices shown in FIGS. 1 to 3.
  • the LED display device separates the plurality of flexible LED display modules 1 and the flexible LED display modules 1 that are approximately square or rectangular.
  • a magnetic frame 2 possibly attached.
  • the flexible LED display modules 1 are attached to the front surface of the magnetic frame 2 such that there is almost no gap between neighboring flexible LED display modules 1.
  • the magnetic frame 2 may itself be a frame formed of a magnet, or may be a frame made of a metal material such as iron that can be magnetized near the magnet and adhered to the magnet.
  • the magnetic frame 2 includes a flat front face on which the flexible LED display modules 1 are arranged and a rear face opposite thereto.
  • the magnetic frame 2 has a property that at least a portion of the front surface can be attached to the magnet.
  • a pair of connecting blocks 21 and 21 are formed at one edge of the rear surface of the magnetic frame 2 to be connected to the wire 3 to suspend the magnetic frame 2 on the ceiling.
  • a hole into which the wire 3 can be inserted is formed in the connection block 21, and the wire 3 passing through the hole is connected to the ceiling, so that the LED display device can be suspended from the ceiling.
  • the magnetic frame 2 may be directly fixed to the wall to install the display device on the wall. Instead of the connection block to connect the wire 3, it is possible to install a connection block formed with a fastening hole to be fastened to the wall using a fastener.
  • the connection block may also be used for both connection of the wire 3 and fastener insertion.
  • each of the flexible LED display modules 1 may include a plurality of flexible circuit boards 100, a plurality of LEDs 200 arranged on top of each of the flexible circuit boards 100, and the flexible circuit board.
  • the upper viscoelastic portion 910 and the lower viscoelastic portion 920 are coupled to each other.
  • the upper viscoelastic portion 910 is composed of an upper viscoelastic film formed with LED holes exposing the LEDs 200.
  • the lower viscoelastic portion 920 is formed to have a uniform thickness on the upper viscoelastic portion 910, that is, the lower viscoelastic layer 922 directly bonded to the upper viscoelastic layer, and the lower surface of the lower viscoelastic layer 922.
  • a sheet rubber magnet 924 is formed to have a uniform thickness on the upper viscoelastic portion 910, that is, the lower viscoelastic layer 922 directly bonded to the upper viscoelastic layer, and the lower surface of the lower viscoelastic layer 922.
  • the upper viscoelastic portion 910 is preferably an upper viscoelastic film 910 formed of a urethane sheet having viscoelastic properties.
  • the lower viscoelastic film 922 is also preferably a urethane sheet.
  • the upper viscoelastic layer 910 and the lower viscoelastic layer 922 are compressed and bonded to each other by a hot press process with the flexible circuit board 100 interposed therebetween.
  • the sheet-type rubber magnet 924 may be formed in a sheet form by mixing NBR rubber and ferrite powder, for example.
  • the sheet-shaped rubber magnet 924 is provided to cover the entire area of the lower surface of the lower viscoelastic film 922 and, like the upper viscoelastic film 910 and the lower viscoelastic film 922, is made of a material having viscoelastic properties. Therefore, the flexible LED display module 1 of the present embodiment including the sheet-shaped rubber magnet 924 has little deterioration in flexibility or viscoelasticity as compared with the flexible LED display module in which the sheet-shaped rubber magnet is omitted.
  • the upper surface of the sheet-shaped rubber magnet 924 is formed in contact with the lower viscoelastic film 922, and the lower surface of the sheet-shaped rubber magnet 924 is attached to the front surface of the magnetic frame 2 by magnetic force.
  • the plurality of flexible circuit boards 100 may include flexible circuit boards 100 and 100 arranged in a length direction with end portions adjacent to each other.
  • the LEDs 200 may be red LED chips, green LED chips, and blue LED chips that are not accommodated in the reflector, the lead frame or the housing, and are directly mounted on the upper surface of the flexible circuit board 100.
  • Three LEDs gathered as shown in FIGS. 1, 3, and 4 may be a red LED chip, a green LED chip, and a blue LED chip constituting one pixel.
  • each of the LEDs arranged on the flexible circuit board 100 may be an LED package including a plurality of LED chips emitting light of different wavelengths. In this case, the LED package may be a single pixel LED package or a multi-pixel LED package mounted on the flexible circuit board.
  • the flexible circuit board 100 is provided with a controller 800 for controlling the LEDs 200.
  • the controller unit 800 may include a driving IC or a controller board.
  • each of the flexible circuit boards 100 includes a folded edge portion 101 and an unfolded edge portion 102 positioned opposite the folded edge portion 101.
  • the folded edge portion 101 of one flexible circuit board 100 faces the folded edge portion 101 of another neighboring flexible circuit board 100. Accordingly, both edges of the flexible LED display module 1 are adjacent to the unfolded edge portion 102.
  • the unfolded edge portion 102 is cut at both edges of the flexible LED display module 1 without damage to the circuit, there is no defect caused by cutting. If there is a folded edge portion 101 instead of the unfolded edge portion 102 on the side of the cutting surface, the curved portion in which the wiring connecting the LEDs 200 and the controller portion 800 exists when the cutting surface is formed. It can be damaged or cut. In addition, it may be difficult to make the pitch between the LEDs between the neighboring flexible circuit boards 100 the same as the pitch between the LEDs existing on the flexible circuit board.
  • the folded edge portion 101 includes an upper portion U of which some LEDs 200 are positioned among the LEDs 200 positioned on an upper surface of the main region of the flexible circuit board 100, and a lower surface of the upper portion. It is composed of a lower portion (B) nested to face the top, and a curved portion (C) which allows the lower portion to overlap with respect to the upper portion.
  • the curved portion has a constant radius of curvature.
  • Most of the LEDs 200 are mounted on an upper surface of a region without the folded edge portion of the main region of the flexible circuit board, and the remaining LEDs are on the folded edge portion of the main region of the flexible circuit board. It is mounted.
  • the upper viscoelastic layer 910 includes through holes exposing the LEDs 200.
  • the lower viscoelastic layer 922 includes a hole or a through-hole that is blocked at a position corresponding to the controller unit 800 to partially receive or expose the controller unit 800.
  • the flexible circuit board 100 is sandwiched between the upper viscoelastic film 910 and the lower viscoelastic film 922 having an area larger than its own area, and thus the upper viscoelastic film 910 is not exposed to the outside. And the lower viscoelastic layer 922 may be completely covered.
  • FIG. 5 is a perspective view for explaining the LED display device according to the embodiment 1-2 of the present invention.
  • the LED display device may have a first magnetic frame 2a and a second magnetic frame 2b and a front surface of the first magnetic frame 2a.
  • the rear surface of the first magnetic frame 2a and the rear surface of the second magnetic frame 2b are coupled to face each other.
  • the front face of the second magnetic frame 2a and the front face of the second magnetic frame 2b face opposite directions.
  • the first flexible LED display modules 1a and the second flexible LED display module 1b also face opposite directions to each other, thereby implementing a double-sided display.
  • the coupling between the first magnetic frame 2a and the second magnetic frame 2b may use a magnetic force or a separate fastener.
  • all or part of the first magnetic frame 2a or all or part of the second magnetic frame 2b is formed of a magnet (preferably a rubber magnet).
  • the first connection blocks 21a formed near one edge of the rear surface of the first magnetic frame 2a are formed on the second connection block 21 formed near one edge of the rear surface of the second magnetic frame 2a. Attached by the magnetic force to the 21b), the rear surface coupling of the first magnetic frame 2a and the second magnetic frame 2b is achieved.
  • the wire 3 may be connected only to the first connection block 21a, or may be used by connecting to both the first connection block 21a and the second connection block 21b.
  • the first flexible LED display module 1a and the second flexible LED display module 1b have the same configuration as that of the flexible LED display module 1 of the first embodiment 1-1 (see FIGS. 1 to 4). Can have. A space of a predetermined gap is formed between the rear surface of the first magnetic frame 2a and the rear surface of the second magnetic frame 2b. In this space, various components necessary for driving the LED display device are disposed outside. May not be exposed.
  • FIG. 6 is a schematic cross-sectional view of the LED display device according to the embodiment 1-3 of the present invention.
  • the LED display apparatus includes a magnetic frame 2 and a plurality of flexible LED display modules 1 and 1 ′ detachably attached to the magnetic frame 2.
  • the plurality of flexible LED display modules 1 and 1 ' are disposed inside the outer flexible LED display modules 1' disposed at the outer side, that is, between the two outer flexible LED display modules.
  • Inner flexible LED display modules 1 are included.
  • the inner flexible LED display modules 1 include flexible circuit boards 100 and 100 which are longitudinally adjacent to each other between the upper viscoelastic portion and the lower viscoelastic portion, but are similar to the flexible LED display modules of the first embodiment 1-1.
  • the folded edge portion 101 of one flexible circuit board 100 is adjacent to the folded edge portion 101 of another neighboring flexible circuit board 100.
  • each of the outer flexible LED display modules 1 includes a flexible circuit board 100 including a flexible edge portion 101 and an unfolded edge portion 102 at both ends thereof, and includes one flexible circuit board ( The folded edge portion 101 of 100 faces adjacent to the unfolded edge portion 102 of the other flexible circuit board 100.
  • the folded edge portion 101 is formed at the outer end of the flexible circuit board on the outer side of the flexible circuit boards 100. This is possible because the folded edge portion 101 may be formed at the outer side end portion of the outer LED display module which does not require cutting.
  • FIG. 7 is a cross-sectional view for describing the first to fourth embodiments of the present invention.
  • the LED display device may include a magnetic frame 2 in which a plurality of flexible LED display modules 1 and the flexible LED display modules 1 are detachably attached thereto. ).
  • Each of the flexible LED display modules 1 includes a plurality of flexible circuit boards 100, a plurality of LEDs 200 arranged on the flexible circuit board 100, and the flexible circuit board 100. It includes an upper viscoelastic portion 910 and a lower viscoelastic portion 920 coupled to each other.
  • the upper viscoelastic portion 910 is composed of an upper viscoelastic film formed with LED holes exposing the LEDs 200.
  • the lower viscoelastic portion 920 is directly bonded to the upper viscoelastic portion (or upper viscoelastic layer 910) and has a lower viscoelastic layer 922 having a plurality of magnet holes formed therein, and a block-type rubber inserted into each of the magnet holes. Magnet 925.
  • the upper viscoelastic layer 910 on which LED holes are formed and the lower viscoelastic layer 922 on which magnet holes are formed are bonded by hot press, the upper surface of the flexible circuit board 100 is interposed therebetween.
  • the mounted LEDs 200 are inserted into the LED holes, and block type rubber magnets 925 formed on the lower surface of the flexible circuit board 100 are inserted into the magnet holes.
  • the lower surface of the block-shaped rubber magnet 925 is coplanar with the lower surface of the lower viscous film 922, or the lower surface of the block-type rubber magnet 925 is the lower surface of the lower viscoelastic film 922. It protrudes more than the face.
  • the flexible circuit board 100 in which the folded edge portion described in the above embodiments is omitted is used.
  • a controller such as a driving IC may be provided on one side of the lower surface of the flexible circuit board 100.
  • the structure of the flexible circuit board including the folded edge portion and / or the structure in which the controller portion is installed below the folded edge portion may be employed.
  • block-type rubber magnets 925 may be attached to the bottom surface of the flexible circuit board 100 except for the folded edge portion 101.
  • FIG. 8 is a cross-sectional view for describing an exemplary embodiment 1-5 of the present invention.
  • an LED display device includes a magnetic frame 2 in which a plurality of flexible LED display modules 1 and the flexible LED display modules 1 are detachably attached thereto. ).
  • each of the flexible LED display modules 1 includes a flexible circuit board 100, a plurality of LEDs 200 arranged on the flexible circuit board 100, and the flexible circuit.
  • An upper viscoelastic portion 910 and a lower viscoelastic portion 920 are coupled to each other with the substrate 100 interposed therebetween.
  • the upper viscoelastic portion 910 is composed of an upper viscoelastic film formed with LED holes exposing the LEDs 200.
  • the lower viscoelastic portion 920 includes a sheet-shaped rubber magnet 924 directly coupled to the upper viscoelastic portion (or upper viscoelastic film 910). Since the lower viscoelastic portion 920 may omit the lower viscoelastic film made of the urethane material of the first-first embodiment and use the sheet-shaped rubber magnet 924 as the lower viscoelastic film, it is possible to reduce the thickness of the flexible LED display module.
  • the sheet-shaped rubber magnet 924 corresponding thereto are hot pressed, is formed on the upper surface of the flexible circuit board 100.
  • the sheet-shaped rubber magnets 924 are bonded to the upper viscoelastic film 910. It is also conceivable to further increase the bonding strength by using the rubber material of the upper viscoelastic film 910 and the base rubber material of the sheet-shaped rubber magnet 924 of the same or the same material.
  • the flexible circuit board 100 in which the folded edge portion is omitted is used as in the first embodiment.
  • the controller unit such as the driving IC may be provided on one side of the lower surface of the flexible circuit board 100, and a hole into which the controller unit is inserted may be formed on the upper surface of the sheet-shaped rubber magnet 924.
  • the structure of the flexible circuit board including the folded edge portion of the first to third embodiments and / or the structure in which the controller portion is installed below the folded edge portion may be employed.
  • FIG. 9 is a cross-sectional view for explaining a first embodiment to sixth embodiments of the present invention.
  • the LED display device may include a magnetic frame 2 in which a plurality of flexible LED display modules 1 and the flexible LED display modules 1 are detachably attached thereto. ).
  • Each of the flexible LED display modules 1 includes a flexible circuit board 100, a plurality of LEDs 200 arranged on an upper portion of the flexible circuit board 100, and the flexible circuit board 100 therebetween.
  • the upper viscoelastic portion 910 and the lower viscoelastic portion 920 are coupled to each other.
  • the upper viscoelastic portion 910 is composed of an upper viscoelastic film formed with LED holes exposing the LEDs 200.
  • the lower viscoelastic portion 920 is directly bonded to the upper viscoelastic portion (or upper viscoelastic layer 910) and has a lower viscoelastic layer 922 having a plurality of magnet holes formed therein, and a block-type rubber inserted into each of the magnet holes. Magnet 925.
  • the block-type rubber magnets 925 may be those previously attached to the lower surface of the flexible circuit board 100 at predetermined intervals.
  • the flexible circuit board 100 may be connected to the upper surface of the flexible circuit board 100.
  • the LEDs 200 mounted on the top surface are inserted into the LED holes, and the block type rubber magnets 925 formed on the bottom surface of the flexible circuit board 100 are inserted into the magnet holes.
  • the lower surface of the block-shaped rubber magnet 925 is coplanar with the lower surface of the lower viscous film 922, or the lower surface of the block-type rubber magnet 924 is the lower surface of the lower viscoelastic film 922. It protrudes more than the face.
  • the magnetic frame 2 includes a frame main body 25 in which block holes are formed, and block magnetic materials 27 inserted into the block holes.
  • the block magnetic bodies 27 are preferably block magnets.
  • the block magnet may be a rubber magnet.
  • the block type magnetic bodies 27 are provided to correspond to the block type rubber magnets 925 integrally coupled with the lower viscoelastic layer.
  • the flexible LED display module includes a block type rubber magnet 925 and the block type rubber magnets 925 are attached to the block type magnetic bodies 27 of the magnetic frame, but the flexible LED display module is block type. It may also include a sheet-shaped rubber magnet attached to the magnetic body (27).
  • FIG. 10 is a cross-sectional view for describing an embodiment 1-7 of the present invention.
  • the magnetic frame 2 includes a plastic frame body 25 having a flat surface and a sheet-shaped magnetic body 29 formed on the flat surface of the plastic frame body 25.
  • the sheet-shaped magnetic body 29 may be a sheet-shaped rubber magnet or an iron sheet attached to the magnet and having a flexible property.
  • the remaining configuration may follow one of the preceding embodiments.
  • FIG 11 is a perspective view illustrating an LED display device according to an embodiment 1-8 of the present invention
  • Figure 12 is an exploded perspective view showing the LED display device according to an embodiment 1-8 of the present invention.
  • an LED display device may include a magnetic frame 2 having a front surface 28 and a rear surface opposite to the magnetic frame 2 and the magnetic frame 2. It includes a plurality of flexible LED display modules (1) detachably attached to the front surface (28).
  • the flexible LED display module includes a flexible circuit board and a plurality of LEDs mounted on an upper surface of the flexible circuit board, an upper viscoelastic part having LED holes into which the LEDs are inserted, and the flexible device. And a lower viscoelastic portion joined to the upper viscoelastic portion, wherein the lower viscoelastic portion has a plurality of block rubber magnets or one sheet rubber magnet on a surface corresponding to the front surface 28 of the magnetic frame 2.
  • the front surface 28 of the magnetic frame 2 is formed as a curved surface having one or more curvatures, and the flexible LED display modules 1 are attached to the front surface 28 which is the curved surface to implement a curved display screen. do.
  • the front surface 28 may be configured as a concave curved surface to implement a concave curved display screen, but when the magnetic frame 2 includes a convex curved surface, the flexible LED display modules 1 may be Attached to the convex curved surface, it is possible to implement a convex curved display screen.
  • the plurality of LED display modules 1 may be attached to cover the entire circular outer circumferential surface of the pillar, thereby providing a cylindrical display screen.
  • FIG. 13 is a perspective view illustrating a micro LED display device according to an embodiment of the present invention
  • Figure 14 is an exploded perspective view showing a micro LED display device according to an embodiment of the present invention from the front
  • Figure 15 An exploded perspective view illustrating a micro LED display device according to an embodiment of the present invention
  • FIG. 16 illustrates a support frame and a stud fixing hole provided in the support frame of the micro LED display device illustrated in FIGS. 13 to 15.
  • 17 is a view for explaining a configuration in which a stud provided in the micro LED module is fixed to the stud fixing hole
  • FIG. 18 is a view illustrating various methods in which the stud is installed on the mount substrate as an example.
  • a micro LED display apparatus includes a plurality of micro LED modules 100 arranged in a matrix and a plurality of micro LED modules 100 supported therein.
  • the micro LED display device further includes a back cover 800, an interface board 700, a power supply unit 600, and the like.
  • Each of the plurality of micro LED modules 100 includes a rectangular mount substrate 110 and a plurality of LED pixels 120 arranged in a matrix on the front of the mount substrate 110.
  • Each of the plurality of LED pixels 120 includes a red micro LED 120R, a green micro LED 120G, and a blue micro LED 120B mounted in a flip bonding manner on a front surface of the mount substrate 110.
  • Each of the micro LEDs 120R, 120G, and 120B may be formed of an LED chip in which a self-equipped electrode pad is electrically connected to an electrode on a mount substrate, without being accommodated in a separate package having a lead frame or a lead terminal. Do.
  • a flip chip type LED chip including all electrode pads having thirty different conductivity (polarities) may be advantageously used.
  • Vertical type eddy chips, which can be implemented in a smaller size by having electrode pads having different conductivity (polarity) at the top and the bottom, respectively, may be advantageously used in the present invention.
  • the plurality of micro LED modules 100 are arranged in a matrix while the sides of the mount substrates 110 are connected to each other.
  • the micro LED modules 110 gathered by this arrangement form a display panel. as above,
  • the rear surface of the mount substrate 110 is provided with driving elements 130 connected to the circuit for the operation of the micro LEDs.
  • studs 140 which are part of fastening means for fixing the micro LED module 100 to the support frame 200 which will be described in detail below are installed on the rear surface of the mount substrate 110.
  • the stud 140 is provided in plural with respect to one micro LED module 100.
  • the micro LED module 100 includes four studs 140 installed at four corners of the rear surface of the mount substrate 110. The stud may be further installed in addition to the four corners of the rear surface of the mount substrate 110.
  • the micro LED display device includes a structure for more stably and reliably fixing the studs 140 to the mount substrate 110, and such a structure includes a stud installation groove formed on the rear surface of the mount substrate 110. 111). Since the depths of the grooves 111 are generally the same and the lengths of the studs 140 are also the same, when the studs 140 are inserted and installed in the grooves 111, the studs 140 are mounted on the mounts. The lengths extending rearward from the back of the substrate 110 are generally the same.
  • a solder 150 is interposed between the bottom surface of each of the grooves 111 and the proximal end protrusion 1402 of the stud 140, and the protrusion 1402 of each of the studs 140 is formed by the solder 150. ) Is firmly and reliably fixed in the inserted state in the groove 111.
  • the stud mounting groove 111 and the protrusion 1402 of each of the studs 140 are non-circular, such as polygonal or elliptical, or the stud mounting groove ( 111 and two or more guide holes 114 and two or more guide pins 144 may be provided on the protrusion 1402 side of the stud 140 to prevent unwanted rotation.
  • This method prevents the studs 140 from being rotated in the stud installation grooves 111, which provides various advantages such as equalizing the fastening depth of the fastener 300 used to secure the studs to the stud fixing holes. to provide.
  • each of the studs 140 includes a fastening hole 142 formed to a predetermined depth in the fastening hole part 1401.
  • the studs 140 ensure a gap between the micro LED module 100 and the support frame 200 by a predetermined interval to ensure a smoothly flowing gap, and heat generated from the micro LED module 100 supports the frame. Form heat transfer paths to 200.
  • the support frame 200 is an Al alloy material having a sufficient strength and sufficient heat transfer characteristics, more preferably, ALDC 12 kinds alloy material.
  • the support frame 200 includes a rectangular rim 210 and at least one middle horizontal bar 220 and at least one middle vertical bar 230 partitioning the inside of the rectangular rim 210 into a plurality of openings 201. Include. In this embodiment, the interior of the rectangular rim 210 is divided into six openings 201 by two intermediate horizontal bars 220 and one intermediate vertical bar 230. In addition, each of the intermediate horizontal bar 220 and the intermediate vertical bar 230, it is preferable that a rib for preventing bending (rib) is formed.
  • the rectangular rim 210 includes an upper horizontal bar 211 and a lower horizontal bar 212 and a pair of side end vertical bars 213 and 214.
  • n is a natural number of 1 or more micro LED modules 100 per opening 201
  • the back surface of the n micro LED modules 100 is external through one opening 201.
  • two micro LED modules 100 are provided per opening 201.
  • the rear surfaces of the 12 micro LED modules 100 are exposed to the rear by six openings 201. do. Accordingly, even when the micro LED module 100 is fixed to the support frame 200, the operator's access to the drive elements installed on the rear surface of the mount substrate 110 is easy. In addition, since the rear surface of the mount substrate 110 is exposed to air, the heat dissipation effect may also be improved.
  • a plurality of stud fixing holes 280 are formed in the support frame 200, and the plurality of stud fixing holes 280 are provided on the back of the plurality of micro LED modules 100 described above.
  • Each of the stud fixing holes 280 has a stepped structure including a stud insertion hole 282 and a fastener guide hole 284 having a diameter smaller than that of the stud insertion hole 282.
  • the stud 140 is inserted into the stud insertion hole 282, and a part of the fastener 300 passes through the fastener guide hole 284 so that the stud 140 is in the stud insertion hole 282. It is fastened to the fastening hole 142 formed in.
  • the support frame 200 includes the plurality of stud fixing holes 280 in a horizontal bar (211, 212, 220), vertical bars (213, 214, 230) or a region that crosses the horizontal bar.
  • four stud fixing holes 280 are fixed to the area where the middle vertical bar 230 and the upper horizontal bar 211 meet each other.
  • a hole 280 is provided, and two stud fixing holes 280 are provided in the area where the middle vertical bar 230 and the lower horizontal bar 212 meet each other, and the middle horizontal bar 220 and the middle vertical bar ( Four stud fixing holes 280 are provided in an area where 230 meets each other.
  • Each of the upper horizontal bar 211 and the lower horizontal bar 212 may include stud fixing holes in one row even in an area not intersecting with the vertical bar, and the middle horizontal bar 230 may be formed in an area not intersecting with the vertical bar.
  • a row of stud fixing holes may be provided.
  • the studs 140 are installed on the rear surface of the mount substrate 110 of the LED module 100 so as to correspond to the stud fixing holes 280.
  • the depth at which the studs 140 are inserted into the stud insertion hole 282 is uniform, and thus, the separation distance between the micro LED modules 100 and the support frame 200 becomes uniform. Therefore, all of the micro LED module 100 may be maintained in parallel with the support frame 200.
  • a plurality of stud fixing holes 280 corresponding to the plurality of studs 140 are formed in the support frame 200, and each of the plurality of stud fixing holes 280 is formed of the stud ( Fasteners having a diameter smaller than the stud insertion hole 282 and the stud insertion hole 282 to be inserted and extending vertically from the base surface of the stud insertion hole 282 to the rear surface of the support frame 200.
  • Guide hole 284 is included.
  • the fastener 300 is partially fastened through the fastener guide hole 284 on the back side of the support frame 200, and the fastening hole 142 of the stud 140 inserted into the stud insertion hole 282. Is fastened to.
  • the stud insertion hole 282 has a tapered structure in which one side is large so that the stud 140 is smoothly inserted and the inner diameter gradually decreases from one side to the other side.
  • the inner diameter of the stud insertion hole 282 may be substantially equal to the outer diameter of the stud 140 at the maximum depth at which the stud 140 is inserted.
  • the stud insertion hole 282 is inserted into the plate spring 400, which is an elastic member for height difference correction, to be in contact with the other side of the stud insertion hole 282.
  • other types of elastic members such as silicone or rubber may be used instead of the leaf springs.
  • All studs 140 are inserted into all of the stud insertion holes 282 so that the fastening hole portion 1401 is in contact with the leaf spring 400. Since the depth of the stud insertion hole 282 is almost the same and the thickness of the leaf spring 400 is almost the same, the insertion depth of the stud insertion hole 282 is almost uniform. Nevertheless, when there is a fine height difference, the height difference may be compensated by the leaf springs 400 pressed by the studs 140.
  • Each of the leaf springs 400 has a ring shape to allow passage of the fastener 300.
  • the fastener 300 is fastened to the fastening hole 142 formed in the stud 140 in the stud insertion hole 282 by passing through the fastener guide hole 284 and the leaf spring 400. .
  • the stud 140 is firmly fixed in the stud fixing hole 280. Therefore, the plurality of micro LED module 100 may be fixed to the support frame 200 in the correct position.
  • the length of the stud 140 is uniform, the depth of each of the stud 140 is inserted into the corresponding stud insertion hole 282 maximum is greater than the depth of the stud insertion hole 282. Accordingly, in the state where the studs 140 are maximally inserted into the stud insertion holes 282, the micro LED modules 100 and the support frame 200 may be spaced at a predetermined interval. In addition, the space between the micro LED modules 100 and the support frame 200 suppresses damage that may be caused by the back part of the micro LED module 100 coming into contact with the support frame 200, and further, the space. By allowing a smooth air flow through, it provides the effect of cooling the micro LED module 100 in an air-cooled manner. In addition, the above-described leaf spring 400 serves to offset the fine height error that may be among the various studs 140 and the stud insertion holes 282 corresponding thereto.
  • the support frame 200 is preferably flat so as to be parallel to the rear surface of the micro LED module 100.
  • the rear surface of the rim 210 is provided with a rectangular guide wall 202 perpendicular to the rear surface of the rim 210 along the rectangular shape of the rim 210.
  • the guide wall 202 formed along the rim 210 may accommodate the interface board 700.
  • the guide wall 202 may function as a reinforcement part of the rim 210.
  • Side surfaces of the interface board 700 are guided along the inner surface of the guide wall 202 so that the interface board 700 is inserted into the guide wall 202.
  • the interface board 700 may include holes corresponding to the stud fixing holes 280 of the support frame 200.
  • the interface board 700 may be guided only by the guide wall 202.
  • the holes of the interface board 700 may coincide with the stud fixing holes 280 of the support frame 200 on the same vertical line.
  • the fastener 300 may enter the stud fixing hole 280 through the hole of the interface board and be fastened to the fastening hole 142 of the stud 140. In this way, the plurality of LED modules 100, the support frame 200, and the interface board 700 may be integrally assembled.
  • the power supply unit 600 which may be an SMPS, may be coupled to the interface board 700.
  • the back cover 800 is coupled to the support frame 200 to protect the power supply unit 600 and the interface board 700.
  • the back cover 800 may be provided with a power inlet and an outlet.
  • FIG. 19 is a view for explaining another example of a module fixing structure including a stud and a stud fixing hole provided in the micro LED module.
  • the support frame 200 includes a stud insertion hole 282 extending a predetermined depth from the front surface, and the stud 140 is inserted into the stud insertion hole 282 on the rear surface of the mount substrate 110. Is installed. This is no different from the previous embodiment. However, in the present embodiment, the fastener 300 ′ positioned in front of the mount substrate 110 of the micro LED module 100 is not fastened by a fastener located on the rear side of the support frame 200 of the previous embodiment. By using, the stud 140 is fastened to the support frame 200. To this end, fastener guides 109 and 149 are formed through the mount substrate 100 and the stud 140 continuously.
  • the fastener guide portion is formed by matching a hole 149 penetrating the stud 140 and a hole 109 penetrating the mount substrate 100.
  • a fastening hole 2821 is formed at the other side of the stud insertion hole 282 to be fastened to the fastener 300 'guided through the fastener guide parts 109 and 149.
  • the stud insertion hole 282 is provided with a leaf spring 400 which is an elastic member for compensating for the height difference, the stud insertion hole 282 is toward the other side formed with a leaf spring 400 from one side
  • the taper structure is gradually reduced in internal diameter.
  • micro-LED display device in which the flat-type micro LED modules are fixed to the overall flat support frame and implemented in a flat form has been described.
  • a description will be given of a micro-LED display device in which the flat-type micro LED modules are fixed to the front surface of the support frame, which is generally curved, and have a curved plate shape.
  • Figure 21 is an exploded perspective view showing the micro LED display device according to the present embodiment from the rear.
  • the micro LED display apparatus includes a plurality of micro LED modules 100 each formed in a rectangular flat plate shape, and the plurality of micro LED modules 100 supported thereon. And a support frame 200 and structures for fixing the micro LED modules 100 supported on the support frame 200 to the support frame 200.
  • the micro LED display device according to the present embodiment further includes a back cover 800, an interface board 700, a power supply unit 600, and the like.
  • each of the plurality of micro LED modules 100 is a plurality of matrix-mounted substrate 110 (see FIG. 13) formed in a rectangular matrix and arranged in front of the mount substrate 110 (see FIG. 13). LED pixels 120 (see FIG. 13).
  • the rear surface of the mount substrate 110 is provided with a driving device 130 (see FIG. 14) connected to a circuit for the operation of the micro LEDs.
  • studs 140 which are part of fastening means for fixing the micro LED modules 100 to the support frame 200 are installed on the rear surface of the mount substrate 110.
  • the stud 140 is provided in plural with respect to one micro LED module 100.
  • the micro LED module 100 includes four studs 140 installed at four corners of the rear surface of the mount substrate 100. The stud may be further installed in addition to the four corners of the rear surface of the mount substrate 110.
  • the micro LED modules 100 are arranged side by side, but unlike the previous embodiments in which all the micro LED modules 100 are arranged on the same plane, in this embodiment, the neighboring micro LED modules 100 are approximately 150 degrees or more and less than 180 degrees, More preferably, it is arranged in the form of a curved surface plate concave rearward as a whole at an angle of 160 degrees or more to less than 180 degrees.
  • the micro LED modules 100 are arranged along a horizontal direction and a vertical direction, but the micro LED modules 100 in one horizontal direction are arranged to form a curved surface, and the micro LED modules 100 in one vertical direction are coplanar. Arranged to be on.
  • the support frame 200 rectangular rim 210 and two middle horizontal bars 220 and three middle sections that divide the inside of the rectangular rim 210 into twelve openings 201.
  • the vertical bar 230 is included.
  • the interior of the rectangular rim 210 is divided into 12 openings 201 by two intermediate horizontal bars 220 and three intermediate vertical bars 230.
  • the rim 210 includes an upper horizontal bar 211 and a lower horizontal bar 212 and a pair of side end vertical bars 213 and 214.
  • one micro LED module 100 is provided for each opening 201, and the rear surface of one micro LED module 100 is exposed to the outside through one opening 201.
  • Each of the middle vertical bars 230 includes a left portion 231 and a right portion 232 separated by an imaginary vertical line vertically connected from the top to the bottom of the rim 210, and the left portion based on the vertical line. 231 and the right portion 232 form an angle of approximately 150 or more and less than 180 degrees, more preferably 160 or more and less than 180 degrees.
  • the right side 232 of the specific middle vertical bar 230 and the left side 231 of the other middle vertical bar 230 are adjacent to each other with the openings 201 of the specific longitudinal row interposed therebetween.
  • the right side 232 of the bar 230 and the left side 231 of the other intermediate vertical bar 230 are located on the same plane.
  • the first group of micro LED modules 100 arranged to cover the openings 201 of the particular row all lie on the same plane.
  • the micro LED modules 100 of the second group G2 arranged to cover the openings 201 of the other row in a horizontal direction adjacent to the openings 201 of the specific row are the first group G1.
  • the right end vertical bar 214 and the right side 232 of the intermediate vertical bar 214 adjacent thereto are coplanar.
  • the left end 231 of the left end vertical bar 213 and the intermediate vertical bar 230 adjacent thereto also form the same plane.
  • the left portion 231 and the right portion 232 may be combined by, for example, welding or fastening to form one intermediate length. Bar 230 can be made and used.
  • each of the micro LED module 100 includes four studs 140 installed at four corners of the rear surface of the mount substrate 110.
  • Four stud fixing holes 280 are formed vertically and horizontally in an area where the middle vertical bar 230 and the middle horizontal bar 220 intersect, and the middle vertical bar 230 and the upper horizontal bar 211 or the Two stud fixing holes 280 are formed in an area where the lower horizontal bar 212 intersects, and an area where the left or right vertical bar 213 or 214 and the middle horizontal bar 220 cross each other.
  • Two stud fixing holes 280 are formed one by one, and the stud fixing holes 280 are formed in each of the four corners of the support frame 200.
  • the support frames described in the previous two embodiments can be extended even further by attaching the support frames to each other. This extension may be applied to the support frame for the flat panel micro LED display device described above as well as the support frame for the curved plate type micro LED display device described later.
  • an expandable structure of the support frame for a flat panel micro LED display device will be described, but it is noted that the present invention is applicable to the support frame for a curved plate type micro LED display device.
  • the number of horizontal bars and vertical bars and the number of openings of the support frame described below may vary.
  • FIG. 22 is a rear view illustrating the rear surface of the support frame
  • FIG. 23 is a rear view illustrating a state in which a plurality of support frames having four sides are connected by side by side
  • FIG. 24 is a corner of four support frames.
  • 25 is a view for explaining a first connection block connecting the two
  • FIG. 25 is a view for explaining a second connection block connecting the left and right corners of two left and right support frames adjacent to the left and right only without a support frame adjacent to the upper side or the lower side
  • FIG. 26 is a view for explaining a third connection block connecting upper and lower corners of two upper and lower support frames adjacent only up and down without supporting frames adjacent to left or right.
  • each of the support frames 200 includes a corner recess 2 defined by an L-shaped corner wall 205 provided at each of four corners.
  • the corner recess 2 is formed in a square or rectangle including two sides blocked by the L-shaped corner wall 205 and two sides opened outward facing each of the two sides.
  • the area of the corner recess 2 includes a first area in which a stud fixing hole 280 is formed and includes a corner of a corner, and a second area in which a block fastening hole 291 and a guide pin 292 are formed. do.
  • the first region and the second region are on the same plane without a step.
  • On the rear surface of the support frame 200 there is a step between the first region and the second region.
  • the thickness of the second region is larger than the thickness of the first region by adding a rectangular patch portion thickness.
  • the stud fixing hole 280 is connected to the stud insertion hole 282 (see FIG. 16) opened toward the front and the stud insertion hole 282 (see FIG. 16) and the fastener guide hole opened toward the rear ( 284; see FIG. 16).
  • the block fastening hole 291 is open toward the rear and the guide pin 292 protrudes toward the rear. Since the first region in which the stud fixing hole 280 is formed is recessed compared to the second region, the head of the stud inserted into the stud fixing hole 280 may not be protruded by being covered by the bent portion of the second region. have.
  • a plurality of support frames 200 having four sides are arranged in a matrix with the sides connected to each other.
  • the first seat 10 includes a recess formed inside a square or rectangular wall formed by four L-shaped corner walls 205.
  • the first seat 10 has four stud fixing holes 280 up, down, left, and right, four block fastening holes 291, and four guide pins 292.
  • Two corner recesses 2 meet in an area where two corners of the two support frames 200 are gathered at the middle of the top or bottom of the matrix arrangement of the support frames 200. Only the lower side is opened and the remaining two sides are formed in the rectangular second seating portion 20 for connecting two-way.
  • the second seating part 20 includes a recess formed inside a rectangular wall formed such that two L-shaped corner walls 205 meet and are opened in only one upper or lower direction.
  • Two stud fixing holes 280, two left and right block fastening holes 291, and two left and right guide pins 292 are positioned in the second seating part 20.
  • Two corner recesses 201 meet in an area where two corners of two support frames 200 are gathered in the middle of the left end or the right end of the matrix arrangement of the support frames 200, and the left side or the right side of the four directions. Only the sides are opened, and the remaining three sides are formed with a third seat 30 for connecting a rectangular two-way.
  • the third seating portion 30 includes a recess formed inside a rectangular wall formed such that two L-shaped corner walls meet and are opened in only one upper or lower direction.
  • Upper and lower stud fixing holes 280, two upper and lower block fastening holes 291, and two upper and lower guide pins 292 are positioned in the third seating part 30.
  • connection block 24, 25, and 26 are diagrams for describing a first connection block, a second connection block, and a third connection block used for connection of the above-described support frames.
  • the first connection block 50 corresponds to the above-described first seating unit 10 (see FIG. 23), and is located at the first seating unit 10 (see FIG. 23).
  • Four stud exposure holes 51 corresponding to the two stud fixing holes 280 (see FIG. 23) and four block fastening holes 291 (see FIG. 23) positioned in the first seating part 10 (see FIG. 23). 4 through the block fastener guide hole 52 corresponding to the through hole, and corresponding to the four guide pins 292 (see Fig. 23) located in the first seating portion (10 (see Fig. 23))
  • Four guide pin holes 53 are provided on the front surface.
  • the first connection block 50 further includes external connection holes 54 for connection with external components such as, for example, a back cover.
  • the first connection block 50 has a flat front surface and a stepped rear surface, wherein the stepped rear surface has a rear center area where the stud exposure hole 51 and the block fastener guide hole 52 are located. It is formed by being further recessed in the left and right peripheral regions.
  • the second connection block 60 corresponds to the above-described second seating part 20 (see FIG. 23), and is located at the second seating part 20 (see FIG. 23).
  • Two stud exposure holes 61 corresponding to the two stud fixing holes 280 (see FIG. 23), and two block fastening holes 291 (see FIG. 23) positioned in the second seating part 20 (see FIG. 23). 2 through the block fastener guide hole 62 corresponding to the through hole, and corresponding to the two guide pins 292 (see Fig. 23) located in the second seating portion 20 (see Fig. 23).
  • Two guide pin holes 73 are provided on the front surface.
  • the second connection block 60 further includes external connection holes 64 for connection with external components such as, for example, a back cover.
  • connection block 60 has a flat front surface and a stepped rear surface, and the stepped rear surface has a rear one region where the stud exposure hole 61 and the block fastener guide hole 62 are located. Formed by being further recessed in the area.
  • the third connection block 70 corresponds to the above-described third seating part 30 (see FIG. 23), and two stud fixing holes located in the third seating part 30. 23 corresponding to the two stud exposure holes 71 corresponding to the two stud exposure holes 71 and the two block fastening holes 291 to the third seating portion 30 (see FIG. 23).
  • the third connection block 70 further includes external connection holes 74 for connection with external components such as, for example, a back cover.
  • connection block 70 has a flat front face and a stepped rear surface, wherein the stepped rear surface has a rear one region where the stud exposure hole 71 and the block fastener guide hole 72 are located. Formed by being further recessed in the area.
  • FIG. 27 is a view for explaining an assembly of a first connecting block, a second connecting block, a third connecting block, and support frames assembled by them.
  • the first connection block 50 is seated on the first seating portion 10 where four corner recesses are formed at the rear surface of the support frame 200. .
  • a plurality of micro LED modules 10 are disposed in front of the arrangement of the support frames 200.
  • Each of the four studs 140 (refer to FIG. 15) extending rearward from the corners of the four micro LED modules 10 are connected to the stud insertion holes 282, which are the front portions of the stud fixing holes 280. Is inserted.
  • the fastener guide hole 284 which is a rear portion of the fastening hole 142 of the stud and the stud fixing hole 280, is exposed through the stud exposure hole 51 formed in the first connection block 50.
  • the fastener is successively passed through the stud exposure hole 51 and the fastener guide hole 284 and fastened to the fastening hole 142 formed in the stud.
  • the guide pin 292 is inserted into the guide pin hole 53, the block fastener not shown is fastened to the block fastening hole 291 through the block fastener guide hole 52 of the first connection block 50 It is.
  • the second connection block 60 is seated on the second seating portion 20 where two corner recesses are formed at the rear side of the arrangement of the support frames 200.
  • a plurality of micro LED modules 10 are disposed in front of the arrangement of the support frames 200.
  • Each of the two studs 140 extending rearward from the corners of the two micro LED modules 10 are inserted into the stud insertion holes 282 that are the front portions of the stud fixing holes 280.
  • the fastener guide hole 284 which is a rear portion of the fastening hole 142 of the stud and the stud fixing hole 280, is exposed through the stud exposure hole 61 formed in the second connection block 60.
  • the fastener 300 is continuously passed through the stud exposure hole 61 and the fastener guide hole 284 and fastened to the fastening hole 142 formed in the stud.
  • the guide pin 292 is inserted into the guide pin hole 63, the block fastener not shown is fastened to the block fastening hole 291 through the block fastener guide hole 62 of the second connection block 60 It is.
  • the third connecting block 60 is seated on the third seating portion 30 where two corner recesses are formed at the rear side of the arrangement of the support frames 200.
  • a plurality of micro LED modules 10 are disposed in front of the arrangement of the support frames 200.
  • Each of the two studs 140 extending rearward from the corners of the two micro LED modules 10 are inserted into the stud insertion holes 282 that are the front portions of the stud fixing holes 280.
  • the fastener guide hole 284 which is a rear portion of the fastening hole 142 of the stud and the stud fixing hole 280, is exposed through the stud exposure hole 71 formed in the third connection block 70.
  • the fastener is successively passed through the stud exposure hole 71 and the fastener guide hole 284 and fastened to the fastening hole 142 formed in the stud.
  • the guide pin 292 is inserted into the guide pin hole 73, the block fastener not shown is fastened to the block fastening hole 291 through the block fastener guide hole 72 of the third connection block 70 It is.

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Abstract

L'invention concerne un dispositif d'affichage à DEL. Le dispositif d'affichage à DEL comprend : un cadre magnétique ayant une propriété dans laquelle au moins une partie de la surface avant du cadre est fixée à un aimant ; et au moins un module d'affichage à DEL flexible fixé à la surface avant du cadre magnétique, le module d'affichage à DEL flexible comprenant : au moins une carte de circuit imprimé flexible ; des DEL agencées sur la surface supérieure de la carte de circuit imprimé flexible ; et une partie viscoélastique supérieure et une partie viscoélastique inférieure couplées l'une à l'autre avec la carte de circuit imprimé flexible entre celles-ci, et la partie viscoélastique inférieure comprend un aimant en caoutchouc fixé au cadre magnétique.
PCT/KR2019/008809 2018-07-24 2019-07-17 Dispositif d'affichage à del utilisant un module d'affichage à del WO2020022692A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2018-0085729 2018-07-24
KR1020180085729A KR20200011087A (ko) 2018-07-24 2018-07-24 엘이디 디스플레이 장치 및 이에 이용되는 서포트 프레임 조립체
KR10-2019-0029916 2019-03-15
KR1020190029916A KR102617484B1 (ko) 2019-03-15 2019-03-15 플렉서블 엘이디 디스플레이 모듈을 이용한 엘이디 디스플레이 장치

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CN114822297A (zh) * 2022-06-27 2022-07-29 深圳市宏贯光电科技有限公司 一种led显示屏软模组及其制作方法

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CN113888955A (zh) * 2020-07-02 2022-01-04 深圳蓝普科技有限公司 一种显示屏
CN113888955B (zh) * 2020-07-02 2023-03-03 深圳蓝普科技有限公司 一种显示屏
CN114822297A (zh) * 2022-06-27 2022-07-29 深圳市宏贯光电科技有限公司 一种led显示屏软模组及其制作方法

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