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WO2019080209A1 - 信号传输装置及显示装置 - Google Patents

信号传输装置及显示装置

Info

Publication number
WO2019080209A1
WO2019080209A1 PCT/CN2017/111207 CN2017111207W WO2019080209A1 WO 2019080209 A1 WO2019080209 A1 WO 2019080209A1 CN 2017111207 W CN2017111207 W CN 2017111207W WO 2019080209 A1 WO2019080209 A1 WO 2019080209A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit board
printed circuit
flexible printed
layer
disposed
Prior art date
Application number
PCT/CN2017/111207
Other languages
English (en)
French (fr)
Inventor
何怀亮
Original Assignee
惠科股份有限公司
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
Application filed by 惠科股份有限公司 filed Critical 惠科股份有限公司
Priority to US16/759,699 priority Critical patent/US11445611B2/en
Publication of WO2019080209A1 publication Critical patent/WO2019080209A1/zh

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1345Conductors connecting electrodes to cell terminals
    • G02F1/13452Conductors connecting driver circuitry and terminals of panels
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/14Structural association of two or more printed circuits
    • H05K1/147Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1303Apparatus specially adapted to the manufacture of LCDs
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70Coupling devices
    • H01R12/77Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/78Coupling devices for flexible printed circuits, flat or ribbon cables or like structures connecting to other flexible printed circuits, flat or ribbon cables or like structures
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/03Use of materials for the substrate
    • H05K1/0393Flexible materials
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/11Printed elements for providing electric connections to or between printed circuits
    • H05K1/115Via connections; Lands around holes or via connections
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/14Structural association of two or more printed circuits
    • H05K1/142Arrangements of planar printed circuit boards in the same plane, e.g. auxiliary printed circuit insert mounted in a main printed circuit
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/14Structural association of two or more printed circuits
    • H05K1/144Stacked arrangements of planar printed circuit boards
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/40Forming printed elements for providing electric connections to or between printed circuits
    • H05K3/4038Through-connections; Vertical interconnect access [VIA] connections
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/13338Input devices, e.g. touch panels
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/01Dielectrics
    • H05K2201/0137Materials
    • H05K2201/0145Polyester, e.g. polyethylene terephthalate [PET], polyethylene naphthalate [PEN]
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/01Dielectrics
    • H05K2201/0137Materials
    • H05K2201/0154Polyimide
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007Types of components
    • H05K2201/10128Display
    • H05K2201/10136Liquid Crystal display [LCD]

Definitions

  • Embodiments of the present application relate to a signal transmission device. Specifically, embodiments of the present application relate to a signal transmission device composed of a plurality of printed circuit boards, and a display device having the signal transmission device. Background technique
  • a liquid crystal touch device having a touch function includes a system, a liquid crystal display panel, a touch panel, and a light source.
  • signals of the liquid crystal display panel, the touch panel, and the light source are respectively transmitted via different flexible printed circuit boards.
  • the flexible printed circuit board is transmitting signals to the system, it must be electrically connected to the system via three ports, respectively. This configuration makes it necessary for the system to leave enough space to set the port, which limits the size of the device.
  • an existing invention attempts to solder a plurality of flexible printed circuit boards to the same flexible printed circuit board by means of soldering, electrically connecting and integrating the signals. It is then transmitted to the system via the same connection. In this way, the system only needs to leave a space for one port to improve the above problem.
  • the welding process is a step that is more prone to cause a change in the manufacturing process.
  • the current environmental factors affect the effect of mechanical welding, and the effect of manual welding is more difficult to grasp. Therefore, if it is found that the above effects can be achieved by means other than welding, the above technique should be further improved.
  • a technical problem to be solved by embodiments of the present invention is to provide a signal transmission device to improve the size of the device and the problem that the cause of the welding process is prone to cause a change.
  • a further technical problem to be solved by embodiments of the present invention is to provide a display device to improve the size of the device and the problem that the cause of the soldering process is prone to cause a change.
  • the present application provides a signal transmission device, including: a first flexible printed circuit board having a first circuit layer and a connecting portion, the first circuit layer being electrically connected to the display module and the system through the connecting portion; a second flexible printed circuit board disposed on the first flexible printed circuit board, having a second circuit layer, the second line The layer is electrically connected to the display module and the first flexible printed circuit board; the third flexible printed circuit board is disposed on the first flexible printed circuit board, has a third circuit layer, a third circuit layer and a display module, and a printed circuit board is electrically connected; an insulating layer is disposed between the first flexible printed circuit board and the second printed circuit board and the third flexible printed circuit board, and below the first printed circuit board, and is disposed in the insulating layer There are a plurality of through holes in the vertical direction; the conductive pillars are disposed in the through holes, so that the second circuit layer and the third circuit layer are electrically connected to the system through the first circuit layer.
  • the material of the insulating layer is Polyimide (PI).
  • the material of the insulating layer is polyethylene terephthalate (Polyethylene)
  • PET Terephthalate
  • the material of the conductive pillar is a conductive paste.
  • the second flexible printed circuit board and the third flexible printed circuit board are disposed on the same plane.
  • the third flexible printed circuit board is disposed on the second flexible printed circuit board.
  • the present application also provides a display device, including: a display module; a system; wherein, the display module and the system are electrically connected by a signal transmission device, where the signal transmission device includes: a first flexible printed circuit board, The first circuit layer and the connecting portion are electrically connected to the display module and the system through the connecting portion; the second flexible printed circuit board is disposed on the first flexible printed circuit board and has a second circuit layer, The second circuit layer is electrically connected to the display module and the first flexible printed circuit board; the third flexible printed circuit board is disposed on the first flexible printed circuit board, and has a third circuit layer, a third circuit layer and a display module And the first printed circuit board is electrically connected; the insulating layer is disposed between the first flexible printed circuit board and the second printed circuit board, and between the first flexible printed circuit board and the third flexible printed circuit board, and a printed circuit board underneath, and a plurality of vertical through holes are disposed in the insulating layer; a conductive pillar is disposed in the through
  • the material of the insulating layer is polyimide.
  • the material of the insulating layer is polyethylene terephthalate.
  • the material of the insulating layer is polyethylene naphthalate.
  • the material of the conductive pillar is a conductive paste.
  • the second flexible printed circuit board and the third flexible printed circuit board are disposed on the same plane.
  • the third flexible printed circuit board is disposed on the second flexible printed circuit board.
  • the present application further provides a display device, including: a display module; a system; wherein the display module and the system are electrically connected by a signal transmission device, the signal transmission device includes: a first flexible printed circuit board having a first line a layer and a connecting portion, the first circuit layer is electrically connected to the display module and the system through the connecting portion; the second flexible printed circuit board is disposed on the first flexible printed circuit board, has a second circuit layer, and the second circuit layer is The display module and the first flexible printed circuit board are electrically connected; the third flexible printed circuit board is disposed on the first flexible printed circuit board and disposed on the same plane as the second flexible printed circuit board, having the first a three-layer layer, the third circuit layer is electrically connected to the display module and the first printed circuit board; the insulating layer is selected from the group consisting of polyimide, polyethylene terephthalate and polyethylene naphthalate a material composed of a group of alcohol esters disposed between the first flexible printed circuit board and the second printed circuit board
  • connection method of soldering several circuit boards by using other methods, thereby avoiding the causes of the soldering process, making the process less prone to error, thereby improving the yield of the product.
  • connection strength between the plurality of boards can be further improved compared to soldering.
  • FIG. 1 is a schematic structural view of an exemplary liquid crystal touch device.
  • FIG. 2 is a schematic side view showing the structure of an exemplary liquid crystal touch device.
  • FIG 3 is a schematic side view showing the structure of a display device in an embodiment of the present application.
  • FIG. 4 is a schematic side view showing the structure of a display device in an embodiment of the present application.
  • FIG. 5 is a side view showing the structure of a display device in an embodiment of the present application.
  • FIG. 6 is a flow chart showing a method of manufacturing a signal transmission device in an embodiment of the present application.
  • installation should be understood broadly, unless otherwise clearly defined and limited.
  • it may be a fixed connection or It is a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium.
  • chimeric and “embedded” should be understood broadly, for example, may be partially embedded, may be fully embedded, may be detachable, or the like. The specific meaning of the above terms in the present application can be understood by a person of ordinary skill in the art.
  • the signals of the liquid crystal display panel, the touch panel, and the light source in the display module 10 are transmitted via the flexible printed circuit boards 102, 104, and 106, respectively.
  • the aforementioned flexible printed circuit board must be electrically connected via three ports respectively when transmitting signals to the system. This configuration makes the system have enough space to set the port, which limits the size of the device.
  • the prior invention has attempted to solder the flexible printed circuit boards 104 and 106 to the flexible printed circuit board 102 by soldering, and electrically connected and integrated the signals. After the flexible printed circuit board 102, it is transmitted to the system via the connection terminal 1020. In this way, the system only needs to leave a space for one port to improve the above problem.
  • a non-composite signal transmission device including a first flexible printed circuit board 110 and a second flexible printed circuit board 120.
  • the first flexible printed circuit board 110 can be electrically connected to the display module 100 and the system (not shown), and the first flexible printed circuit board 110 is provided with a plurality of port portions 202.
  • the port portion 202 is electrically connected to the circuit of the first flexible printed circuit board 110, so that other components can be electrically connected to the first flexible printed circuit board 102 through the port portion 202.
  • the circuit board 120 is electrically connected to the display module 100 and is provided with a port connector 201.
  • the port connector 201 is electrically connected to the circuit of the second flexible printed circuit board 120 such that other components can be electrically connected to the first flexible printed circuit board 110 through the port portion 202.
  • the port connector 201 described above matches the port portion 202, and can be fixed or detached as needed.
  • the port connector 201 can be inserted, mated, or connected to the port portion 202 by any known means such as a spring, a cassette, or the like, and in a state in which the port is electrically connected, the second port 201 is provided.
  • the flexible printed circuit board 120 is electrically connected to the first flexible printed circuit board 110 having the port portion 202.
  • the port portion 202 may be single or plural and may be disposed on either side of the first flexible printed circuit board 110.
  • port portion 202 can be disposed on an upper surface, a lower surface, a peripheral edge, or other configurable location of first flexible printed circuit board 110.
  • the above arrangement must at least ensure that the port portion 202 can be electrically connected to the circuit of the first flexible printed circuit board 110 for the signal to be input to or output from the first flexible printed circuit board 110 through the port portion 202.
  • the port connectors 201 may be single or plural and may be disposed on either side of the second flexible printed circuit board 120.
  • the port portion 202 can be disposed on an upper surface, a lower surface, a peripheral edge, or other configurable position of the second flexible printed circuit board 120.
  • the above arrangement must at least ensure that the port connector 210 can be electrically connected to the circuit of the second flexible printed circuit board 120 for the signal to be input to or output from the first flexible printed circuit board 110 through the port connector 201.
  • the first flexible printed circuit board 110 can be electrically connected to the second flexible printed circuit board 120 by connecting the port connector 201 and the port portion 202.
  • the first flexible printed circuit board 110 and the second flexible printed circuit board 120 can be differently arranged according to the positions of the port connector 201 and the port portion 202.
  • the first flexible printed circuit board 110 may be in the same plane as the second flexible printed circuit board 120 and adjacent to each other; or the first flexible printed circuit board 110 may be different from the second flexible printed circuit board 120.
  • the first flexible printed circuit board 110 may partially overlap the second flexible printed circuit board 120.
  • the actual configuration is not limited thereto, but at least the effect of electrically connecting the first flexible printed circuit board 110 and the second flexible printed circuit board 120 is required.
  • the first flexible printed circuit board 110 may be directly connected to the display module 100 or may not be directly connected to the display module 100. In the case of directly connecting the display module 100, the first flexible printed circuit board 110 can receive signals directly from the display module 100; without directly connecting the display module 100, The first flexible printed circuit board 110 can be electrically connected to the display module 10 through the second flexible printed circuit board 120, the port connector 201, and the port portion 202 to receive signals from the display module 100.
  • the first flexible printed circuit board 110 can further be provided with a connecting portion 500 for electrically connecting the system. And transmitted to the system through the connection portion 500.
  • the second flexible printed circuit board 120 can be electrically connected to the light source or the touch panel of the display module 100 (not shown), and transmits the light source signal provided by the light source and/or transmits the touch signal provided by the touch panel. .
  • the second flexible printed circuit board 120 may be disposed on a different side of the display module 100 than the first flexible printed circuit board 110, or may be disposed on the same side of the display module 100 as the first flexible printed circuit board 110.
  • the first flexible printed circuit board 110 and the second flexible printed circuit board 120 are further fixed in relative positions by alignment marks.
  • the first flexible printed circuit board 110 and the second flexible printed circuit board 120 after being aligned by the alignment marks, may be known in the art. Ways to strengthen the link between the two to fix the relative position between the two.
  • the signal transmission device of the present application may further include a third flexible printed circuit board 130.
  • the third flexible printed circuit board 130 can have the same function as the second flexible printed circuit board 120. That is, the third flexible printed circuit board 130 can be electrically connected to the light source or the touch panel of the display module 100 (not shown), and the light source signal provided by the light source and/or the touch signal provided by the touch panel can be transmitted. .
  • the third flexible printed circuit board 130 may be disposed on the different side of the display module 100 from the first flexible printed circuit board 110, or may be disposed on the same side of the display module 100 as the first flexible printed circuit board 110.
  • the third flexible printed circuit board 130 may also be disposed on a different side of the display module 100 than the second flexible printed circuit board 120, or may be disposed on the same side of the display module 100 as the second flexible printed circuit board 120.
  • the third flexible printed circuit board 130 may transmit different signals from the second flexible printed circuit board 120, respectively.
  • a light source for electrically connecting the third flexible printed circuit board 130 to the display module 100, a light source signal, and a touch panel for electrically connecting the second flexible printed circuit board 120 to the display module 100 may be disposed. Transfer touch signals.
  • a liquid crystal display device can be further provided by disposing the above-described signal transmission device in a liquid crystal display device for transmitting signals.
  • a composite signal transmission device is provided.
  • the arrangement relationship between the printed circuit board 110, the second flexible printed circuit board 120, and the third flexible printed circuit board 130 is optimized, and the above three components are electrically connected without using the port connector 201 and the port portion 202. Rather, the first flexible printed circuit board 110, the second flexible printed circuit board 120, and the third flexible printed circuit board 130 are directly integrated into a multi-layered composite signal transmission device 700. As shown in FIG. 4, the flexible printed circuit boards equivalent to the first flexible printed circuit board 110, the second flexible printed circuit board 120, and the third flexible printed circuit board 130 are respectively the first flexible printed circuit.
  • the board 111, the second flexible printed circuit board 121, and the third flexible printed circuit board 131 are shown separated from the foregoing embodiment.
  • the composite signal transmission device 700 is a multilayer structure in which the first flexible printed circuit board 111, the second flexible printed circuit board 121, and the third flexible printed circuit board 131 are overlapped, and the insulating layer 300 is disposed between the three. .
  • the insulating layer 300 is provided with a plurality of through holes 310, and the conductive pillars 320 are respectively disposed in the plurality of through holes 310 to separate the first flexible printed circuit board 111, the second flexible printed circuit board 121 and the first
  • the three flexible printed circuit boards 131 are electrically connectable.
  • the first flexible printed circuit board 110 can be replaced with a hard circuit board.
  • the insulating layer 300 may be further disposed under the first flexible printed circuit board 111.
  • the signal transmission apparatus of this embodiment can be manufactured by the flow of FIG. 6, wherein steps S11 to S15 are briefly described in the above-described steps, which are merely exemplary steps, and can be appropriately modified as needed.
  • the material of the insulating layer 300 may be, for example, polyimide (Polyimide, PI), polyethylene terephthalate (PET), polyethylene naphthalate (Polyethylene). Naphthalate' PEN) or other insulating materials commonly used in the art.
  • the conductive pillars 320 may be conductive pastes, anisotropic conductive films or other conductive materials commonly used in the art.
  • the second flexible printed circuit board 121 can be electrically connected to the light source of the display module 100, and the third flexible printed circuit board 131 can be electrically connected to the touch panel of the display module 100.
  • the second flexible printed circuit board 121 and the third flexible printed circuit board 131 are electrically connected to the first flexible printed circuit board 111 through the conductive pillars 320 disposed in the through holes 310, and further passed through the connecting portion 500 and the system. Electrical connection.
  • the second flexible printed circuit board 121 may be disposed on the same plane as the third flexible printed circuit board 131 on the first flexible printed circuit board 111, and the above method and the first flexible printed circuit board 111 are respectively employed. Electrical connection.
  • the configuration relationship between the first flexible printed circuit board 110, the second flexible printed circuit board 120, and the third flexible printed circuit board 130 is optimized.
  • First soft print A composite flexible printed circuit board similar to the multilayer structure in the previous embodiment is integrated on the brush circuit board 110, the second flexible printed circuit board 120, and the third flexible printed circuit board 130 to form a thin composite signal transmission.
  • the device 800 has a structure as shown in FIG. In FIG. 5, the thin composite signal transmission device 800 includes a first conductive pattern 112 equivalent to the circuit of the first flexible printed circuit board 110, and a second conductive equivalent to the circuit of the second flexible printed circuit board 120.
  • the first conductive pattern 112 can be disposed on any insulating substrate (not shown), and the conductive substrate 500 is disposed on the insulating substrate, and is electrically connected to the above structure.
  • the second conductive pattern [0050] at the bottom of the thin composite signal transmission device 800 and the first conductive pattern 112, the second conductive pattern
  • An insulating layer 400 is disposed between the first conductive pattern 112, the second conductive pattern 122, and the third conductive pattern 132.
  • the structure 410 is electrically connected.
  • the formation of the interlayer conduction structure 410 includes forming at least one via hole in the insulating layer 400, and the hole wall of the via hole is formed into a conductive plating layer through a chemical and electroplating process.
  • the material of the coating can be a metal or a conductive plastic, or other material that is also electrically conductive.
  • the plating layer electrically connects the conductive patterns of the upper layer and the lower layer of the interlayer conduction structure to electrically connect each other.
  • the thin composite signal transmission device 800 is different from the composite signal transmission device 700 of the previous embodiment in that the first conductive pattern 112, the second conductive pattern 122, and the third conductive pattern 132 are imprinted by copper foil.
  • the thickness is much smaller than the first flexible printed circuit board 111, the second flexible printed circuit board 121, and the third flexible printed circuit board 131. Therefore, the overall thickness of the thin composite signal transmission device 800 can be made smaller than that of the composite signal transmission device 700.
  • the insulating layer 400 of the thin composite signal transmission device 800 can be made of a single material, the formation thereof is divided into two parts, which are an insulating layer which is originally solid, and a liquid insulating layer before curing.
  • the material of the insulating layer 400 may be polyimide (Polyimide, PI).
  • the insulating layer 400 is disposed between the first conductive pattern 112, the second conductive pattern 122, and the third conductive pattern 132.
  • a prepolymer solution of the uncured liquid polyimide is applied between the insulating layer 400 and the above three conductive patterns, that is, the material before the insulating layer 400 is cured, and the organic solvent in the solution is removed by a heating step.
  • the present application further includes providing a liquid crystal display device by providing the signal transmission device described above in a liquid crystal display device for transmitting a signal, and the liquid crystal display device may have the above signal transmission device.
  • the signal transmission device described above may be disposed in other electronic devices, and is not limited to the display device.
  • the display device may be an LCD display device, an OLED display device, a QLED display device, or the like. Curved display device or other display device.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Human Computer Interaction (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Combinations Of Printed Boards (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种信号传输装置(700)及显示装置,信号传输装置(700)包括:第一软性印刷电路板(111),具有第一线路层及连接部,第一线路层通过连接部电性连接显示模块(100)及系统;第二软性印刷电路板(121),设置在第一软性印刷电路板(111)上,具有第二线路层,第二线路层与显示模块(100)及第一软性印刷电路板(111)电性连接;第三软性印刷电路板(131),设置在第一软性印刷电路板(111)上,具有第三线路层,第三线路层与显示模块(100)及第一软性印刷电路板(111)电性连接;绝缘层(300),设置于第一软性印刷电路板(111)与第二及第三软性印刷电路板(121、131)之间、以及第一软性印刷电路板(111)下方,且绝缘层(300)中设置有若干个垂直方向的通孔(310);导电柱(320),设置于通孔(310)中,使第二及第三线路层通过第一线路层电性连接至系统。

Description

信号传输装置及显示装置 技术领域
[0001] 本申请各实施方式涉及信号传输装置。 具体而言, 本申请各实施方式涉及若干 个印刷电路板组成的信号传输装置, 及具有所述信号传输装置的显示装置。 背景技术
[0002] 一般而言, 具有触控功能的液晶触控装置 (以下称液晶触控装置)包括系统、 液 晶显示面板、 触控面板及光源。 典型的液晶触控装置的结构中, 液晶显示面板 、 触控面板及光源的信号是分别经由不同的软性印刷电路板传输。 然而, 而所 述软性印刷电路板在传输信号至系统吋, 必须分别经由三个端口电性连接系统 , 此配置使得系统必须留置足够的空间设置端口, 造成装置的大小受到限制。
[0003] 此外, 范例中, 已有发明创造试图利用焊接的方式, 将若干个的软性印刷电路 板与焊接至同一个软性印刷电路板上, 以电性连接并将信号汇整后, 再经由同 一连接端传输至系统。 藉此, 系统只须留置一个端口的空间, 改善上述问题。
[0004] 然而, 焊接过程是属于制程中较容易产生变因的步骤, 制造当下的环境因素会 影响到机械焊接的效果, 而人工焊接的效果更加难以掌握。 因此, 若能找到利 用焊接以外的方式达到上述功效, 应可更加改进上述技术。
技术问题
[0005] 本发明实施例要解决的技术问题是, 提供一种信号传输装置, 以改善装置大小 受到限制和焊接过程中容易产生变因的问题。
[0006] 本发明实施例进一步要解决的技术问题是, 提供一种显示装置, 以改善装置大 小受到限制和焊接过程中容易产生变因的问题。
问题的解决方案
技术解决方案
[0007] 有鉴于此, 本申请提供一种信号传输装置, 包括: 第一软性印刷电路板, 具有 第一线路层及连接部, 第一线路层通过连接部电性连接显示模块及系统; 第二 软性印刷电路板, 设置在第一软性印刷电路板上, 具有第二线路层, 第二线路 层与显示模块及第一软性印刷电路板电性连接; 第三软性印刷电路板, 设置在 第一软性印刷电路板上, 具有第三线路层, 第三线路层与显示模块及第一印刷 电路板电性连接; 绝缘层, 设置于第一软性印刷电路板与第二印刷电路板及第 三软性印刷电路板之间、 以及第一印刷电路板下方, 且绝缘层中设置有若干个 垂直方向的通孔; 导电柱, 设置于通孔中, 使第二线路层及第三线路层通过第 一线路层电性连接至系统。
[0008] 可选地, 绝缘层的材料是聚酰亚胺 (Polyimide, PI)。
[0009] 可选地, 绝缘层的材料是聚乙烯对苯二甲酸乙二醇酯 (Polyethylene
Terephthalate, PET)。
[0010] 可选地, 缘层的材料是聚萘二甲酸乙二醇酯 (Polyethylene naphthalate, PEN)= [0011] 可选地, 导电柱的材料是导电胶。
[0012] 可选地, 第二软性印刷电路板与第三软性印刷电路板是设置在同一平面。
[0013] 可选地, 第三软性印刷电路板是设置在第二软性印刷电路板上。
[0014] 另一方面, 本申请亦提供一种显示装置, 包括: 显示模块; 系统; 其中, 显 示模块及系统通过信号传输装置电性连接, 信号传输装置包括: 第一软性印刷 电路板, 具有第一线路层及连接部, 第一线路层通过连接部电性连接显示模块 及系统; 第二软性印刷电路板, 设置在第一软性印刷电路板上, 具有第二线路 层, 第二线路层与显示模块及第一软性印刷电路板电性连接; 第三软性印刷电 路板, 设置在第一软性印刷电路板上, 具有第三线路层, 第三线路层与显示模 块及第一印刷电路板电性连接; 绝缘层, 设置于第一软性印刷电路板与第二印 刷电路板、 以及第一软性印刷电路板与第三软性印刷电路板之间、 以及第一印 刷电路板下方, 且绝缘层中设置有若干个垂直方向的通孔; 导电柱, 设置于通 孔中, 使第二线路层及第三线路层通过第一线路层电性连接至系统。
[0015] 可选地, 绝缘层的材料是聚酰亚胺。
[0016] 可选地, 绝缘层的材料是聚乙烯对苯二甲酸乙二醇酯。
[0017] 可选地, 绝缘层的材料是聚萘二甲酸乙二醇酯。
[0018] 可选地, 导电柱的材料是导电胶。
[0019] 可选地, 第二软性印刷电路板与第三软性印刷电路板是设置在同一平面。 [0020] 可选地, 第三软性印刷电路板是设置在第二软性印刷电路板上。
[0021] 本申请更提供一种显示装置, 包括: 显示模块; 系统; 其中, 显示模块及系统 通过信号传输装置电性连接, 信号传输装置包括: 第一软性印刷电路板, 具有 第一线路层及连接部, 第一线路层通过连接部电性连接显示模块及系统; 第二 软性印刷电路板, 设置在第一软性印刷电路板上, 具有第二线路层, 第二线路 层与显示模块及第一软性印刷电路板电性连接; 第三软性印刷电路板, 设置在 第一软性印刷电路板上, 并与第二软性印刷电路板是设置在同一平面, 具有第 三线路层, 第三线路层与显示模块及第一印刷电路板电性连接; 绝缘层, 是由 选自聚酰亚胺、 聚乙烯对苯二甲酸乙二醇酯及聚萘二甲酸乙二醇酯所组成的群 组的材料所构成, 设置于第一软性印刷电路板与第二印刷电路板及第三软性印 刷电路板之间、 以及第一印刷电路板下方, 且缘层中设置有若干个垂直方向的 通孔; 导电柱, 设置于通孔中, 使第二线路层及第三线路层通过第一线路层电 性连接至系统。
发明的有益效果
有益效果
[0022] 本申请通过改用其他方式以取代焊接若干个电路板的连接方式, 可避免前述焊 接过程中的变因, 使制程中不易出错, 进而提升产品的良率。 此外, 使用本申 请的信号传输装置, 相较于焊接可更提升所述若干个电路板间的连接强度。 对附图的简要说明
附图说明
[0023] 通过参照附图详细说明示例性实施方式, 以上及其它特征和优点对本领域技术 人员将变得更明显, 其中:
[0024] 图 1是范例的液晶触控装置的结构示意图。
[0025] 图 2是范例的液晶触控装置的结构侧视示意图。
[0026] 图 3是本申请的一实施例中显示装置的结构侧视示意图。
[0027] 图 4是本申请的一实施例中显示装置的结构侧视示意图。
[0028] 图 5是本申请的一实施例中显示装置的结构侧视示意图。
[0029] 图 6是本申请的一实施例中的信号传输装置的制造方法流程图。 本发明的实施方式
[0030] 以下将参照附图更全面地说明示例性实施方式; 然而, 它们可以不同形式体现 并不应理解成受限于文中所述实施方式。 相反, 提供这些实施方式以使得本公 幵彻底而完整, 并将完整地将本申请的范围传达给本领域技术人员。
[0031] 在本申请的描述中, 需要理解的是, 术语"上"、 "下"、 "左"、 "右"、 "内"、 "外 "等指示的方位或位置关系为基于附图所示的方位或位置关系, 仅是为了便于描 述本申请和简化描述, 而不是暗示所指的装置或组件必须具有特定的方位, 因 此不能理解为对本申请的限制。
[0032] 在本申请的描述中, 需要说明的是, 除非另有明确的规定和限定, 术语"安装" 、 "相连"、 "连接 "应做广义理解, 例如, 可以是固定连接, 也可以是可拆卸连接 , 或一体地连接; 可以是机械连接, 也可以是电性连接; 可以是直接相连, 也 可以通过中间媒介间接相连。 术语"嵌合"、 "嵌入 "应做广义理解, 例如, 可以 是部分嵌入、 可以是完全嵌入, 可以是可拆卸的嵌入等。 对于本领域的普通技 术人员而言, 可以具体情况理解上述术语在本申请中的具体含义。
[0033] 如图 1所示的范例中, 显示模块 10中的液晶显示面板、 触控面板及光源的信号 是分别经由软性印刷电路板 102、 104、 106传输。 然而, 前述软性印刷电路板在 传输信号至系统吋, 必须分别经由三个端口电性连接, 此配置使得系统必须留 置足够的空间设置端口, 造成装置的大小受到限制。
[0034] 如图 2所示的范例, 已有发明创造试图利用焊接的方式, 将软性印刷电路板 104 及 106与焊接至软性印刷电路板 102上, 以电性连接并将信号汇整至软性印刷电 路板 102后, 再经由连接端 1020传输至系统。 藉此, 系统只须留置一个端口的空 间, 改善上述问题。
[0035] 在本申请的实施例中, 提供一种非复合式信号传输装置, 如图 3所示, 包括第 一软性印刷电路板 110及第二软性印刷电路板 120。 第一软性印刷电路板 110可电 性连接显示模块 100及系统 (未于图中表示), 且第一软性印刷电路板 110上设置有 若干个端口部 202。 端口部 202与第一软性印刷电路板 110的电路电性连接, 使其 他组件可通过端口部 202与第一软性印刷电路板 102电性连接。 第二软性印刷电 路板 120电性连接显示模块 100, 且设置有端口连接件 201。 端口连接件 201与第 二软性印刷电路板 120的电路电性连接, 使其他组件可通过端口部 202与第一软 性印刷电路板 110电性连接。 上述的端口连接件 201匹配端口部 202, 两者间可依 需求固定或拆卸。 端口连接件 201可插入、 嵌合、 或利用弹片、 卡榫等任何已知 存在的方式与端口部 202连接, 且在连接吋处于电性连接的状态, 使设置有端口 连接件 201的第二软性印刷电路板 120与具有端口部 202的第一软性印刷电路板 110电性连接。
[0036] 在上述实施例中, 端口部 202可为单个或多个, 且可设置在第一软性印刷电路 板 110的任一侧。 举例而言, 端口部 202可设置在第一软性印刷电路板 110的上表 面、 下表面、 四周边缘或其他可设置的位置。 惟上述设置至少须确保端口部 202可与第一软性印刷电路板 110的电路电性连接, 以供信号通过端口部 202输入 至或输出第一软性印刷电路板 110。
[0037] 另一方面, 端口连接件 201可为单个或多个, 且可设置在第二软性印刷电路板 1 20的任一侧。 举例而言, 端口部 202可设置在第二软性印刷电路板 120的上表面 、 下表面、 四周边缘或其他可设置的位置。 惟上述设置至少须确保端口连接件 2 01可与第二软性印刷电路板 120的电路电性连接, 以供信号通过端口连接件 201 输入至或输出第一软性印刷电路板 110。
[0038] 通过连接端口连接件 201及端口部 202, 第一软性印刷电路板 110可与第二软性 印刷电路板 120电性连接。 根据端口连接件 201及端口部 202设置的位置, 第一软 性印刷电路板 110及第二软性印刷电路板 120可对应进行不同设置。 举例而言, 第一软性印刷电路板 110可与第二软性印刷电路板 120位于同一平面并相互邻接 ; 或者第一软性印刷电路板 110可与第二软性印刷电路板 120位于不同平面; 或 者第一软性印刷电路板 110可与第二软性印刷电路板 120部分重叠。 然而, 实际 配置方式并不限于此, 惟至少需达到使第一软性印刷电路板 110与第二软性印刷 电路板 120电性连接的效果。
[0039] 在本申请的实施例中, 第一软性印刷电路板 110可直接连接显示模块 100, 或者 不直接连接显示模块 100。 在直接连接显示模块 100的情况下, 第一软性印刷电 路板 110可直接由显示模块 100接收信号; 在不直接连接显示模块 100的情况下, 第一软性印刷电路板 110可通过第二软性印刷电路板 120、 端口连接件 201及端口 部 202电性连接显示模块 10, 以从显示模块 100接收信号。 第一软性印刷电路板 110更可设置连接部 500, 用以电性连接系统。 并通过连接部 500传输至系统。
[0040] 第二软性印刷电路板 120可电性连接显示模块 100的光源或触控面板 (未于图中 表示), 传输光源提供的光源信号及 /或传输触控面板提供的触控信号。 第二软性 印刷电路板 120可与第一软性印刷电路板 110设置在显示模块 100的不同侧, 或者 可与第一软性印刷电路板 110设置在显示模块 100的同一侧。
[0041] 可选地, 所述第一软性印刷电路板 110及所述第二软性印刷电路板 120进一步通 过对准标记固定相对位置。 可选地, 除端口连接件 201及端口部 202外, 第一软 性印刷电路板 110及所述第二软性印刷电路板 120在通过对准标记对准后, 可通 过本领域习知的方式加强两者间的连结, 以固定两者间的相对位置。
[0042] 此外, 本申请的信号传输装置可进一步包括第三软性印刷电路板 130。 第三软 性印刷电路板 130可与第二软性印刷电路板 120具有相同功能。 亦即, 第三软性 印刷电路板 130可电性连接显示模块 100的光源或触控面板 (未于图中表示), 传输 光源提供的光源信号及 /或传输触控面板提供的触控信号。 同样地, 第三软性印 刷电路板 130可与第一软性印刷电路板 110设置在显示模块 100的不同侧, 或者可 与第一软性印刷电路板 110设置在显示模块 100的同一侧。 第三软性印刷电路板 130亦可与第二软性印刷电路板 120设置在显示模块 100的不同侧, 或者可与第二 软性印刷电路板 120设置在显示模块 100的同一侧。
[0043] 可选地, 第三软性印刷电路板 130可与第二软性印刷电路板 120分别传输不同信 号。 举例而言, 可设置使第三软性印刷电路板 130电性连接显示模块 100的光源 , 传输光源信号, 并设置使第二软性印刷电路板 120电性连接显示模块 100的触 控面板, 传输触控信号。
[0044] 在本申请的另一实施例中, 更可藉由将上述说明的信号传输装置设置在液晶显 示装置内用以传输信号, 进而提供一种液晶显示装置。
[0045] 除上述实施例以外, 还可依据实际状况及需求, 针对其中若干个组件进行优化 , 更加增强本申请的优点, 下文将以不同实施例进行示例说明。
[0046] 在本申请的示例性实施例中, 提供一种复合式信号传输装置。 针对上述第一软 性印刷电路板 110、 第二软性印刷电路板 120及第三软性印刷电路板 130之间的配 置关系进行优化, 不使用端口连接件 201及端口部 202的结构电性连接以上三者 , 而是直接将第一软性印刷电路板 110、 第二软性印刷电路板 120及第三软性印 刷电路板 130上整合成多层结构的复合式信号传输装置 700。 如图 4所示, 将与第 一软性印刷电路板 110、 第二软性印刷电路板 120及第三软性印刷电路板 130等效 的软性印刷电路板分别以第一软性印刷电路板 111、 第二软性印刷电路板 121及 第三软性印刷电路板 131表示, 以与前述实施例区隔。 复合式信号传输装置 700 是将第一软性印刷电路板 111、 第二软性印刷电路板 121及第三软性印刷电路板 131重迭, 并在三者间设置绝缘层 300的多层结构。 其中, 绝缘层 300设置若干个 通孔 310, 并分别设置导电柱 320于上述若干个通孔 310中, 使被分隔的第一软性 印刷电路板 111、 第二软性印刷电路板 121及第三软性印刷电路板 131间可电性连 接。 可选地, 第一软性印刷电路板 110可改用硬式电路板。 此外, 亦可进一步设 置绝缘层 300于第一软性印刷电路板 111下。 总括而言, 本实施例的信号传输装 置可通过如图 6的流程制造, 其中步骤 S11到 S15是将上述说明的步骤简要地叙述 , 仅为示例的步骤, 可依需求作适当的修改。
[0047] 绝缘层 300的材料可为例如: 聚酰亚胺 (Polyimide, PI)、 聚乙烯对苯二甲酸乙二 醇酯 (Polyethylene Terephthalate, PET)、 聚萘二甲酸乙二醇酉旨 (Polyethylene naphthalate' PEN)或其他本领域所常用的绝缘材料。 导电柱 320可为导电胶、 异方 性导电膜或其他本领域所常用的导电材料。
[0048] 举例而言, 第二软性印刷电路板 121可电性连接显示模块 100的光源, 第三软性 印刷电路板 131可电性连接显示模块 100的触控面板。 第二软性印刷电路板 121及 第三软性印刷电路板 131通过设置于通孔 310中的导电柱 320进而与第一软性印刷 电路板 111电性连接, 再进一步通过连接部 500与系统电性连接。 然而, 上述仅 为示例, 实际实施的配置可依照需求进行调整。 例如, 第二软性印刷电路板 121 可与第三软性印刷电路板 131同样设置在第一软性印刷电路板 111上的同一平面 , 且分别采用上述方法与第一软性印刷电路板 111电性连接。
[0049] 在另一实施例中, 同样地, 针对上述第一软性印刷电路板 110、 第二软性印刷 电路板 120及第三软性印刷电路板 130之间的配置关系进行优化。 将第一软性印 刷电路板 110、 第二软性印刷电路板 120及第三软性印刷电路板 130上整合应用类 似于上一实施例中的多层结构的复合软性印刷电路板, 形成薄型复合式信号传 输装置 800, 结构如图 5所示。 在图 5中, 薄型复合式信号传输装置 800包含与第 一软性印刷电路板 110的电路等效的第一导电图形 112、 与第二软性印刷电路板 120的电路等效的第二导电图形 122及与第三软性印刷电路板 130的电路等效的第 三导电图形 132。 其中, 第一导电图形 112可设置于任意绝缘性基板 (未于图中标 示)上, 且绝缘性基板上设置有导电部 500, 与上述结构电性连接。
[0050] 在薄型复合式信号传输装置 800的底部及上述第一导电图样 112、 第二导电图样
122及第三导电图样 132之间设置绝缘层 400, 并在其中设置层间导通结构 410, 使第一导电图样 112、 第二导电图样 122及第三导电图样 132之间通过层间导通结 构 410电性连接。 层间导通结构 410的形成, 包括在绝缘层 400中形成至少一个通 孔, 且所述通孔的孔壁是经由化学及电镀工艺形成具有导电性的镀层。 镀层的 材料可为金属或导电塑料, 或其他同样具有导电性的材料。 所述镀层电性连接 层间导通结构上层及下层的导电图样, 使其彼此电性连接。
[0051] 薄型复合式信号传输装置 800与前一实施例的复合式信号传输装置 700不同的地 方是, 第一导电图样 112、 第二导电图样 122及第三导电图样 132是由铜箔压印而 成, 其厚度远小于前述的第一软性印刷电路板 111、 第二软性印刷电路板 121及 第三软性印刷电路板 131。 因此, 薄型复合式信号传输装置 800的整体厚度可小 于复合式信号传输装置 700。
[0052] 此外, 薄型复合式信号传输装置 800的绝缘层 400虽可为单一材料制成, 但其形 成分为两个部分, 分别为原先即为固态的绝缘层, 及固化前的液态绝缘层, 其 中, 绝缘层 400的材料可为聚酰亚胺 (Polyimide, PI)。 绝缘层 400是设置在第一导 电图样 112、 第二导电图样 122及第三导电图样 132之间。 在绝缘层 400与上述三 种导电图样之间涂布未固化的液态聚酰亚胺的前聚体溶液, 亦即绝缘层 400固化 前的材料, 并经由加热步骤去除溶液中的有机溶剂即可使其固化形成绝缘层 400 。 藉上述方式设置的绝缘层 400除了具有绝缘效果外, 更能作为辅助贴合第一导 电图样 112、 第二导电图样 122及第三导电图样 132的黏着材料, 使薄型复合式信 号传输装置 800的结构更加稳固。 [0053] 同样地, 本申请更包括藉由将上述说明的信号传输装置设置在液晶显示装置内 用以传输信号, 进而提供一种液晶显示装置, 而所述液晶显示装置可具有上述 信号传输装置的各实施例所具有的益处及效果。 在不影响电路板的讯号传输效 果的同吋, 改变电路板的设置方式, 通过减少与系统相连的端口, 并免除焊接 步骤这种变因较大的制程, 更能减少出错机率, 提高产品良率。
[0054] 其中, 上述说明的信号传输装置还可以设置在其他电子装置中, 不限于显示装 置, 在应用于显示装置吋, 显示装置的种类可以是 LCD显示装置、 OLED显示装 置、 QLED显示装置、 曲面显示装置或其他显示装置。
[0055] 以上所述的内容仅是依照本申请优选地实施例详细说明, 而非限制本申请的权 利范围。 本申请相关领域具有通常知识者皆应理解, 在不违背本申请的技术原 理及精神下, 可对上述实施例作出修改与变化。 因此本申请的权利范围应如权 利要求书内容所述。

Claims

权利要求书
[权利要求 1] 一种信号传输装置, 其特征在于, 包括:
第一软性印刷电路板, 具有第一线路层及连接部, 所述第一线路层 通过所述连接部电性连接显示模块及系统;
第二软性印刷电路板, 设置在所述第一软性印刷电路板上, 具有第 二线路层, 所述第二线路层与所述显示模块及所述第一软性印刷电路 板电性连接;
第三软性印刷电路板, 设置在所述第一软性印刷电路板上, 具有第 三线路层, 所述第三线路层与所述显示模块及所述第一印刷电路板电 性连接;
绝缘层, 设置于所述第一软性印刷电路板与所述第二印刷电路板、 以及所述第一软性印刷电路板所述第三软性印刷电路板之间、 以及所 述第一印刷电路板下方, 且所述绝缘层中设置有若干个垂直方向的通 孔;
导电柱, 设置于所述通孔中, 使所述第二线路层及所述第三线路层 通过所述第一线路层电性连接至所述系统。
[权利要求 2] 如权利要求 1所述的信号传输装置, 其特征在于, 所述绝缘层的材料 是聚酰亚胺。
[权利要求 3] 如权利要求 1所述的信号传输装置, 其特征在于, 所述绝缘层的材料 是聚乙烯对苯二甲酸乙二醇酯。
[权利要求 4] 如权利要求 1所述的信号传输装置, 其特征在于, 所述绝缘层的材料 是聚萘二甲酸乙二醇酯。
[权利要求 5] 如权利要求 1所述的信号传输装置, 其特征在于, 所述导电柱的材料 是导电胶。
[权利要求 6] 如权利要求 1所述的信号传输装置, 其特征在于, 所述第二软性印刷 电路板与所述第三软性印刷电路板是设置在同一平面。
[权利要求 7] 如权利要求 1所述的信号传输装置, 其特征在于, 所述第三软性印刷 电路板是设置在所述第二软性印刷电路板上。
[权利要求 8] —种显示装置, 其特征在于, 包括:
显示模块;
系统;
其中, 所述显示模块及所述系统通过信号传输装置电性连接, 所 述信号传输装置包括:
第一软性印刷电路板, 具有第一线路层及连接部, 所述第一线路 层通过所述连接部电性连接所述显示模块及所述系统;
第二软性印刷电路板, 设置在所述第一软性印刷电路板上, 具有 第二线路层, 所述第二线路层与所述显示模块及所述第一软性印刷电 路板电性连接;
第三软性印刷电路板, 设置在所述第一软性印刷电路板上, 具有 第三线路层, 所述第三线路层与所述显示模块及所述第一印刷电路板 电性连接;
绝缘层, 设置于所述第一软性印刷电路板与所述第二印刷电路板 及所述第三软性印刷电路板之间、 以及所述第一印刷电路板下方, 且 所述绝缘层中设置有若干个垂直方向的通孔;
导电柱, 设置于所述通孔中, 使所述第二线路层及所述第三线路 层通过所述第一线路层电性连接至所述系统。
[权利要求 9] 如权利要求 8所述的显示装置, 其特征在于, 所述绝缘层的材料是聚 酰亚胺。
[权利要求 10] 如权利要求 8所述的显示装置, 其特征在于, 所述绝缘层的材料是聚 乙烯对苯二甲酸乙二醇酯。
[权利要求 11] 如权利要求 8所述的显示装置, 其特征在于, 所述绝缘层的材料是聚 萘二甲酸乙二醇酯。
[权利要求 12] 如权利要求 8所述的显示装置, 其特征在于, 所述导电柱的材料是导 电胶。
[权利要求 13] 如权利要求 8所述的显示装置, 其特征在于, 所述第三软性印刷电路 板与所述第二软性印刷电路板是设置在同一平面。
[权利要求 14] 如权利要求 8所述的显示装置, 其特征在于, 所述第三软性印刷电路 板是设置在所述第二软性印刷电路板上。
[权利要求 15] —种显示装置, 其特征在于, 包括:
显示模块;
系统;
其中, 所述显示模块及所述系统通过信号传输装置电性连接, 所 述信号传输装置包括:
第一软性印刷电路板, 具有第一线路层及连接部, 所述第一线路 层通过所述连接部电性连接所述显示模块及所述系统;
第二软性印刷电路板, 设置在所述第一软性印刷电路板上, 具有 第二线路层, 所述第二线路层与所述显示模块及所述第一软性印刷电 路板电性连接;
第三软性印刷电路板, 设置在所述第一软性印刷电路板上, 并与 所述第二软性印刷电路板是设置在同一平面, 具有第三线路层, 所述 第三线路层与所述显示模块及所述第一印刷电路板电性连接;
绝缘层, 是由选自聚酰亚胺、 聚乙烯对苯二甲酸乙二醇酯及聚萘 二甲酸乙二醇酯所组成的群组的材料所构成, 设置于所述第一软性印 刷电路板与所述第二印刷电路板及所述第三软性印刷电路板之间、 以 及所述第一印刷电路板下方, 且所述绝缘层中设置有若干个垂直方向 的通孔;
导电柱, 设置于所述通孔中, 使所述第二线路层及所述第三线路 层通过所述第一线路层电性连接至所述系统。
PCT/CN2017/111207 2017-10-26 2017-11-15 信号传输装置及显示装置 WO2019080209A1 (zh)

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