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WO2018090592A1 - 导电膜去除方法和装置 - Google Patents

导电膜去除方法和装置 Download PDF

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Publication number
WO2018090592A1
WO2018090592A1 PCT/CN2017/085336 CN2017085336W WO2018090592A1 WO 2018090592 A1 WO2018090592 A1 WO 2018090592A1 CN 2017085336 W CN2017085336 W CN 2017085336W WO 2018090592 A1 WO2018090592 A1 WO 2018090592A1
Authority
WO
WIPO (PCT)
Prior art keywords
display panel
laser
cleaning
conductive film
adjustment unit
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2017/085336
Other languages
English (en)
French (fr)
Inventor
简重光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
Original Assignee
HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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 HKC Co Ltd, Chongqing HKC Optoelectronics Technology Co Ltd filed Critical HKC Co Ltd
Priority to US15/744,041 priority Critical patent/US10799920B2/en
Publication of WO2018090592A1 publication Critical patent/WO2018090592A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
    • B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
    • B08B1/143—Wipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/041—Cleaning travelling work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/0823—Devices involving rotation of the workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/083—Devices involving movement of the workpiece in at least one axial direction
    • B23K26/0838—Devices involving movement of the workpiece in at least one axial direction by using an endless conveyor belt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/16—Removal of by-products, e.g. particles or vapours produced during treatment of a workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/361—Removing material for deburring or mechanical trimming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/362—Laser etching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/40—Removing material taking account of the properties of the material involved
    • B23K26/402—Removing material taking account of the properties of the material involved involving non-metallic material, e.g. isolators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/1306—Details
    • G02F1/1309—Repairing; Testing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/36—Electric or electronic devices
    • B23K2101/38—Conductors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/36—Electric or electronic devices
    • B23K2101/42—Printed circuits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/16—Composite materials, e.g. fibre reinforced
    • B23K2103/166—Multilayered materials
    • B23K2103/172—Multilayered materials wherein at least one of the layers is non-metallic
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/1316—Methods for cleaning the liquid crystal cells, or components thereof, during manufacture: Materials therefor
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels

Definitions

  • the present application relates to the field of display panel technologies, and in particular, to a conductive film removal method and apparatus.
  • the LCD display panel is performing a conductive film such as ACF (Anisotropic Conductive)
  • ACF Anisotropic Conductive
  • ACF glue On the display panel is manually removed, and then the attachment of the ACF glue is performed. This method of rework is prone to problems of poor cleaning or scratching of the display panel, thereby reducing product yield and increasing labor costs.
  • a conductive film removing method and apparatus capable of improving product yield and reducing labor costs.
  • a method for removing a conductive film comprising:
  • the display panel is cleaned after laser processing.
  • the step of processing the conductive film to be removed on the display panel by using a laser is:
  • the conductive film to be removed on the display panel is removed by a laser etching method.
  • the step of processing the conductive film to be removed on the display panel by using a laser is:
  • the conductive film to be removed is treated with a laser to make the conductive film lose its viscosity.
  • the method further includes the step of providing an isolation region on the display panel; the isolation region is for isolating the conductive film from other regions of the display panel.
  • the step of performing cleaning processing on the display panel after laser processing is:
  • the cleaning solution is sprayed on the laser processing area and the display panel is cleaned with a cleaning tool.
  • the cleaning tool is a flexible wiping tool;
  • the cleaning solution is an organic solvent that is both hydrophilic and lipophilic.
  • the cleaning tool is a nonwoven fabric and the cleaning solution is an isopropyl alcohol solution.
  • the step of performing the cleaning process on the display panel after the laser processing is: cleaning the display panel with a cleaning tool sprayed with the cleaning liquid.
  • a conductive film removing device comprising:
  • a carrying platform disposed to place a display panel on which the conductive film is to be removed
  • a laser component disposed above the carrier, configured to generate a laser to process a conductive film to be removed on the display panel;
  • a cleaning member is disposed above the carrying platform and configured to perform a cleaning process on the display panel after the laser component is processed.
  • a drive member is further included; the drive member is configured to drive a display panel on the stage to move from a work area of the laser part to a work area of the cleaning part.
  • the carrier is a conveyor belt; the laser component and the cleaning component are sequentially disposed along a length direction of the conveyor belt; the driving component is configured to control the conveyor belt to move to display The panel moves the corresponding work area.
  • the carrier is a rotatable structure; the drive member is configured to drive the carrier to rotate to rotate the display panel into a work area below the corresponding device.
  • a fixing member is further included; the fixing member is configured to fix the loading table, the laser member, and the cleaning member; the fixing member is a height-adjustable bracket structure.
  • the laser component comprises:
  • the first fixed adjustment unit is coupled to the laser head; the first fixed adjustment unit is configured to adjust a distance between the laser head and the display panel and an incident angle of the laser .
  • the cleaning component comprises:
  • the second fixed adjustment unit is configured to fix the cleaning tool and adjust a distance between the cleaning tool and the display panel.
  • the cleaning component further includes a cleaning liquid spraying device fixed to the second adjusting unit; the cleaning liquid spraying device is configured to spray the processing region of the laser component Or set to spray the cleaning tool.
  • the cleaning tool is a flexible wiping tool; the cleaning liquid in the cleaning solution spraying device is an organic solvent having both hydrophilicity and lipophilicity.
  • the cleaning tool is a nonwoven fabric and the cleaning solution is an isopropyl alcohol solution.
  • the laser component includes an isolation unit; the isolation unit is configured to isolate the conductive film from other regions of the display panel.
  • a conductive film removing device comprising:
  • a carrying platform disposed to place a display panel on which the conductive film is to be removed
  • a laser component disposed above the carrier, configured to generate a laser to process a conductive film to be removed on the display panel;
  • the laser component includes a first fixed adjustment unit and a laser head; the first fixed adjustment a unit is coupled to the laser head; the first fixed adjustment unit is configured to adjust a distance between the laser head and the display panel and an incident angle of the laser;
  • a cleaning member disposed above the carrying platform, configured to perform a cleaning process on the display panel processed by the laser component;
  • the cleaning component includes a second fixed adjustment unit and a cleaning tool;
  • the cleaning tool is fixed in the first a second fixed adjustment unit;
  • the second fixed adjustment unit is configured to adjust a distance between the cleaning tool and the display panel;
  • a fixing member configured to fix the carrier, the laser member, and the cleaning member
  • a driving member configured to drive the display panel on the stage to move from a work area of the laser component to a work area of the cleaning component.
  • the above-mentioned conductive film removing method and device use a laser to treat the conductive film to be removed on the display panel, and then clean the display panel, thereby eliminating the need to manually remove the conductive film requiring rework, thereby reducing labor costs and reducing artificial Factors caused by scratches on the display panel and improved product yield.
  • FIG. 1 is a flow chart showing a method of removing a conductive film in an embodiment
  • FIG. 2 is a schematic structural view of a display panel to which a conductive film is to be removed;
  • FIG. 3 is a block diagram showing the structure of a conductive film removing device in an embodiment
  • FIG. 4 is a schematic structural view of a conductive film removing device in an embodiment
  • FIG. 5 is a schematic view of the display panel after the conductive film is removed.
  • FIG. 1 is a flow chart of a method of removing a conductive film in an embodiment.
  • the method can be applied to the case where the display panel is subjected to the conductive film attaching process, and the conductive film needs to be reworked due to poor process or material deterioration.
  • a conductive film having an anisotropic conductivity that is, an anisotropic conductive film ACF
  • the method of the present application can also be used to remove other conductive films having a gel property.
  • the method includes the following steps:
  • Step S110 providing a display panel to which the conductive film is to be removed.
  • a display panel that requires removal of the conductive film is placed on the stage to perform subsequent operations.
  • a schematic structural view of a display panel to be removed from the conductive film is shown in FIG. 2.
  • 90 denotes a display panel
  • 80 denotes a conductive film.
  • step S120 the conductive film to be removed on the display panel is processed by using a laser.
  • the conductive film on the display panel may be directly removed by using a laser etching process, or the conductive film may be processed by using a laser to make the conductive film lose colloidality.
  • the laser head is not in contact with the display panel but above the display panel.
  • the laser wavelength can be selected and adjusted according to the resin type of the conductive film and its fixing behavior, and the laser energy density can also be selected and adjusted according to the thickness of the conductive film and the amount of residual glue.
  • the laser head is rotatable.
  • an isolation region is also provided during laser processing to isolate the conductive film from other regions of the display panel, so that the laser only processes the region.
  • step S130 the laser processed display panel is cleaned.
  • the laser treatment area may be sprayed with a cleaning liquid, and then the display panel may be cleaned with a dedicated cleaning tool.
  • the cleaning liquid may also be sprayed onto the cleaning tool, and then the display panel may be cleaned using a cleaning tool sprayed with the cleaning liquid.
  • a soft wiping tool can be used for the cleaning tool to avoid scratching the display panel.
  • the cleaning solution is an organic solvent which is both lipophilic and hydrophilic, so that the residual matter is well removed.
  • the cleaning tool is a non-woven fabric (also referred to as a nonwoven fabric).
  • Non-woven fabric is made up of oriented or random fibers. It is a new generation of environmentally friendly materials. It is moisture-proof, breathable, flexible, light, non-combustible, easy to decompose, non-toxic and non-irritating, low in price, and recyclable. In other embodiments, other materials that are flexible and do not scratch the display panel circuitry may be employed.
  • the cleaning solution is an isopropanol solution (IPA). In other embodiments, other cleaning fluids that are freely miscible with water and have a good solubility for lipophilic materials can be employed.
  • IPA isopropanol solution
  • the conductive film to be removed on the display panel is processed by a laser, and then the display panel is cleaned, thereby eliminating the need to manually remove the conductive film requiring rework, thereby reducing labor costs and reducing human factors.
  • the display panel is scratched to improve product yield.
  • the above method can be applied to a display panel such as an LCD display panel, an OLED display panel, or a QLED display panel, and the above method can also be applied to a flat display panel or a curved display panel. It can be understood that the types of display panels to which the above methods can be applied include, but are not limited to, the types of display panels described above.
  • the present application also provides a conductive film removing device which can implement the above method.
  • 3 is a block diagram showing the structure of a conductive film removing device including a stage 210, a laser member 220, and a cleaning member 230 in an embodiment.
  • the carrier 210 is used to place a display panel on which a conductive film is to be removed.
  • the laser component 220 is disposed above the carrier 210.
  • the laser component 220 is configured to generate a laser to process the conductive film to be processed on the display panel.
  • the cleaning member 230 is provided to perform a cleaning process on the display panel processed by the laser member 210.
  • the laser member 220 processes the conductive film to be removed on the display panel with a laser, and then cleans the display panel through the cleaning member 230, thereby eliminating the need to manually remove the conductive film requiring rework, thereby reducing labor costs. At the same time, it can also reduce the scratch on the display panel caused by human factors and improve the product yield.
  • the above conductive film removing device further includes a driving member 240.
  • the drive member 240 is arranged to drive the display panel on the carrying platform 210 from the work area of the laser part 220 to the work area of the cleaning part 230, thereby automating the entire process without manual intervention.
  • the carrier 210 can be a conveyor belt.
  • the laser member 220 and the cleaning member 230 are sequentially disposed along the longitudinal direction of the conveyor belt.
  • the drive component 240 can control the conveyor belt movement to move the display panel to the corresponding work area.
  • the drive component 240 can control the belt movement to move the display panel to the work area of the laser component 220.
  • the carrier 210 is a rotatable structure. Therefore, the driving member can drive the carrying table 210 to rotate, so that the display panel can be rotated to the working area below the corresponding device as needed to complete the corresponding operation. It will be understood that the carrier 210 includes, but is not limited to, the above structure.
  • the conductive film removing device may further include a fixing member 250.
  • the fixing member 250 is provided to fix the stage 210, the laser part 220, and the cleaning part 230.
  • the fixing member 250 is a height-adjustable bracket structure to adjust the height of the stage 210, the laser member 220, or the cleaning member 230 according to operational needs.
  • the conductive film removing device includes a stage 410, a laser member 420, and a cleaning member 430.
  • the laser component 420 includes a first fixed adjustment unit 422 and a laser head 424.
  • the first fixed adjustment unit 422 is connected to the laser head 424.
  • the first fixed adjustment unit 422 can adjust the distance of the laser head 424 from the display panel and the incident angle of the laser. That is, in the present embodiment, the laser head 424 is a rotatable structure.
  • the laser wavelength emitted by the laser head 424 can be selectively adjusted according to the type of the resin of the conductive film and its fixing behavior, and the laser energy density can also be selected and adjusted according to the thickness of the conductive film and the amount of residual glue.
  • the laser component 420 may further include an isolation unit to isolate the conductive film region from other regions of the display panel such that the laser only processes the region.
  • the cleaning member 430 includes a second fixed adjustment unit 432 and a cleaning tool 434.
  • the second fixed adjustment unit 432 is arranged to adjust the distance between the cleaning tool 434 and the display panel and the magnitude of the force, thereby ensuring that the cleaning tool 434 uniformly applies force to the display panel to prevent the display panel from being scratched.
  • the cleaning component 430 can also include a cleaning fluid spray device.
  • the cleaning liquid spraying device is fixed to the second fixed adjustment unit 432.
  • the cleaning liquid spraying device is configured to spray the processing area of the laser member 420 or directly spray the cleaning tool 434.
  • the second fixed adjustment unit 432 can be a robot arm or a moving component to control the cleaning tool 434 to be wiped left and right or up and down for cleaning purposes.
  • a soft wiping tool can be used for the cleaning tool to avoid scratching the display panel.
  • the cleaning solution is an organic solvent which is both lipophilic and hydrophilic, so that the residual matter is well removed.
  • the cleaning tool is a non-woven fabric.
  • other materials that are flexible and do not scratch the display panel circuitry may be employed.
  • the cleaning solution can be, for example, an isopropyl alcohol solution (IPA).
  • IPA isopropyl alcohol solution
  • other cleaning fluids that are freely miscible with water and have a good solubility for lipophilic materials can be employed.
  • FIG. 5 is a schematic view of a display panel after the conductive film is removed by the above apparatus and method.
  • the above device can be applied to a display panel such as an LCD display panel, an OLED display panel, or a QLED display panel, and the above device can also be applied to a flat display panel or a curved display panel.
  • a display panel such as an LCD display panel, an OLED display panel, or a QLED display panel
  • the above device can also be applied to a flat display panel or a curved display panel.
  • the types of display panels to which the above devices can be applied include, but are not limited to, the types of display panels described above.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
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Abstract

一种导电膜(80)去除方法和装置。其中，方法包括：提供待去除导电膜(80)的显示面板(90)(S110)；利用激光对该显示面板上待去除的导电膜(80)进行处理(S120)；及对该显示面板(90)进行清洁处理(S130)。该方案无需人工去除需要重工的导电膜(80)，降低了人工成本，同时还可以减少人为因素造成的显示面板(90)刮伤，提高产品良率。

Description

导电膜去除方法和装置
本申请要求于2016年11月15日提交中国专利局、申请号为201611005514.1、申请名称为“导电膜去除方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
【技术领域】
本申请涉及显示面板技术领域，特别是涉及一种导电膜去除方法和装置。
【背景技术】
LCD显示面板在执行导电膜，如ACF胶（Anisotropic Conductive Film，异方性导电胶膜）的贴附制成时，经常由于制成不良或者材料劣化导致需要对ACF进行重工（rework）。传统多采用手动去除显示面板上邦定的ACF胶，然后再执行ACF胶的贴附。这种重工方法容易发生清洁不到位或者刮伤显示面板的问题，从而降低了产品良率并增加了人力成本。
【发明内容】
根据本申请的各种实施例，提供一种导电膜去除方法和装置，能够提高产品良率并减少人力成本。
一种导电膜去除方法，包括：
提供待去除导电膜的显示面板；
利用激光对所述显示面板上待去除的导电膜进行处理；及
在激光处理后对所述显示面板进行清洁处理。
在其中一个实施例中，所述利用激光对所述显示面板上待去除的导电膜进行处理的步骤为：
利用激光刻蚀方法将所述显示面板上待去除的导电膜去除。
在其中一个实施例中，所述利用激光对所述显示面板上待去除的导电膜进行处理的步骤为：
利用激光对所述待去除的导电膜进行处理以使得所述导电膜失去粘性。
在其中一个实施例中，还包括在所述显示面板上设置隔离区的步骤；所述隔离区用于将所述导电膜与所述显示面板其他区域隔离。
在其中一个实施例中，所述在激光处理后对所述显示面板进行清洁处理的步骤为：
对激光处理区域喷涂清洗液并用清洁工具对所述显示面板进行清洁。
在其中一个实施例中，所述清洁工具为柔性擦拭工具；所述清洗液为同时具有亲水性和亲油性的有机溶剂。
在其中一个实施例中，所述清洁工具为无纺布，所述清洗液为异丙醇溶液。
在其中一个实施例中，所述在激光处理后对所述显示面板进行清洁处理的步骤为：利用喷涂有清洗液的清洁工具对所述显示面板进行清洁。
一种导电膜去除装置，包括：
承载台，设置为放置待去除导电膜的显示面板；
激光部件，设置在所述承载台上方，设置为产生激光以对所述显示面板上待去除的导电膜进行处理；及
清洁部件，设置在所述承载台上方，设置为对所述激光部件处理后的显示面板进行清洁处理。
在其中一个实施例中，还包括驱动部件；所述驱动部件设置为驱动所述承载台上的显示面板从所述激光部件的作业区域移动至所述清洁部件的作业区域。
在其中一个实施例中，所述承载台为传输带；所述激光部件和所述清洁部件沿所述传输带的长度方向依次设置；所述驱动部件设置为控制所述传输带移动以将显示面板移动相应的作业区域。
在其中一个实施例中，所述承载台为可旋转结构；所述驱动部件设置为驱动所述承载台旋转以将所述显示面板旋转至对应的设备下方的作业区域内。
在其中一个实施例中，还包括固定部件；所述固定部件设置为固定所述承载台、所述激光部件和所述清洁部件；所述固定部件为高度可调的支架结构。
在其中一个实施例中，所述激光部件包括：
激光头；及
第一固定调节单元；所述第一固定调节单元与所述激光头连接；所述第一固定调节单元设置为对所述激光头与所述显示面板之间的距离以及激光的入射角度进行调整。
在其中一个实施例中，所述清洁部件包括：
清洁工具；及
第二固定调节单元；所述第二固定调节单元设置为固定所述清洁工具，并对所述清洁工具与所述显示面板之间的距离进行调整。
在其中一个实施例中，所述清洁部件还包括清洗液喷涂装置，所述清洗液喷涂装置固定在所述第二调节单元上；所述清洗液喷涂装置设置为对激光部件的处理区域进行喷涂或者设置为对所述清洁工具进行喷涂。
在其中一个实施例中，所述清洁工具为柔性擦拭工具；所述清洗液喷涂装置中的清洗液为同时具有亲水性和亲油性的有机溶剂。
在其中一个实施例中，所述清洁工具为无纺布，所述清洗液为异丙醇溶液。
在其中一个实施例中，所述激光部件包括隔离单元；所述隔离单元设置为将所述导电膜与所述显示面板的其他区域进行隔离。
一种导电膜去除装置，包括：
承载台，设置为放置待去除导电膜的显示面板；
激光部件，设置在所述承载台上方，设置为产生激光以对所述显示面板上待去除的导电膜进行处理；所述激光部件包括第一固定调节单元和激光头；所述第一固定调节单元与所述激光头连接；所述第一固定调节单元设置为对所述激光头与所述显示面板之间的距离以及激光的入射角度进行调整；
清洁部件，设置在所述承载台上方，设置为对所述激光部件处理后的显示面板进行清洁处理；所述清洁部件包括第二固定调节单元和清洁工具；所述清洁工具固定在所述第二固定调节单元上；所述第二固定调节单元设置为对所述清洁工具与所述显示面板之间的距离进行调整；
固定部件，设置为固定所述承载台、所述激光部件和所述清洁部件；以及
驱动部件，设置为驱动所述承载台上的显示面板从所述激光部件的作业区域移动至所述清洁部件的作业区域。
上述导电膜去除方法和装置，利用激光对显示面板上待去除的导电膜进行处理后再对显示面板进行清洁处理，从而无需人工去除需要重工的导电膜，降低了人工成本，同时还可以减少人为因素造成的显示面板刮伤，提高产品良率。
【附图说明】
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他实施例的附图。
图1为一实施例中的导电膜去除方法的流程图；
图2为待去除导电膜的显示面板的结构示意图；
图3为一实施例中的导电膜去除装置的结构框图；
图4为一实施例中的导电膜去除装置的结构示意图；
图5为去除导电膜后的显示面板的示意图。
【具体实施方式】
为了便于理解本申请，下面将参照相关附图对本申请进行更全面的描述。附图中给出了本申请的较佳实施例。但是，本申请可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使对本申请的公开内容的理解更加透彻全面。
图1为一实施例中的导电膜去除方法的流程图。该方法可以适用于显示面板在执行导电膜贴附制程中，因制程不良或者材料劣化需要对导电膜进行重工的情况。在本实施例中，以具有导电异方性的导电膜（也即异方性导电膜ACF）为例进行说明。然不限此，申请本实施例中的方法亦可用于去除其他具有胶性的导电膜。
该方法包括以下步骤：
步骤S110，提供待去除导电膜的显示面板。
将需要去除导电膜的显示面板放置在承载台上，以执行后续操作。待去除导电膜的显示面板的结构示意图如图2所示。其中，90表示显示面板，80表示导电膜。
步骤S120，利用激光对显示面板上待去除的导电膜进行处理。
利用激光对显示面板上的导电膜进行处理的过程中，可以利用类似激光刻蚀工艺直接将显示面板上的导电膜去除，或者利用激光对导电膜进行处理，以使得导电膜失去胶性。在激光处理过程中，激光头并不与显示面板接触，而是位于显示面板上方。激光波长可以根据导电膜的树脂种类及其固定行为进行选择调整，激光能量密度同样可以根据导电膜的厚度以及残胶量进行选择调整。在一实施例中，激光头能够旋转。为避免激光对显示面板产生干扰，在进行激光处理时还会设置隔离区，将导电膜与显示面板其他区域隔离，从而使得激光仅对该区域进行处理。
步骤S130，对激光处理后的显示面板进行清洁处理。
在激光处理后，需要将显示面板上的残余物质或者失去粘性的导电膜清洁掉。具体地，清洁处理过程中，可以先对激光处理区域喷涂清洗液，然后用专用的清洁工具对显示面板进行清洁。在其他的实施例中，也可以先将清洗液喷涂在清洁工具上，然后利用喷涂有清洗液的清洁工具对显示面板进行清洁。清洁工具可以选用柔韧性擦拭工具，以避免刮伤显示面板。清洗液为同时具有亲油性和亲水性的有机溶剂，从而很好的去除残余物质。在本实施例中，清洁工具为不织布（也称为无纺布）。不织布是由定向或者随机的纤维构成的，是新一代环保材料，具有防潮、透气、柔韧、质轻、不助燃、容易分解、无毒无刺激性、价格低廉、可循环再用等特点。在其他的实施例中，也可以采用其他具有柔韧性特点且不会刮伤显示面板线路的材料。清洗液为异丙醇溶液（IPA）。在其他的实施例中，可以采用其他能够与水自由混合，对亲油性物质具有良好溶解力的清洗液。
上述导电膜去除方法，利用激光对显示面板上待去除的导电膜进行处理后再对显示面板进行清洁处理，从而无需人工去除需要重工的导电膜，降低了人工成本，同时还可以减少人为因素造成的显示面板刮伤，提高产品良率。上述方法可以应用于LCD显示面板、OLED显示面板、QLED显示面板等显示面板中，同时上述方法也可以适用于平面显示面板或者曲面显示面板中。可以理解，上述方法可以应用的显示面板种类包括但并不限于上述显示面板种类。
本申请还提供一种导电膜去除装置，该装置可以实现上述方法。图3为一实施例中的导电膜去除装置的结构框图，该导电膜去除装置包括承载台210、激光部件220和清洁部件230。
承载台210用于放置待去除导电膜的显示面板。激光部件220设置在承载台210上方。激光部件220设置为产生激光以对显示面板上待处理的导电膜进行处理。清洁部件230设置为对激光部件210处理后的显示面板进行清洁处理。
上述导电膜去除装置，激光部件220利用激光对显示面板上待去除的导电膜进行处理后再通过清洁部件230对显示面板进行清洁处理，从而无需人工去除需要重工的导电膜，降低了人工成本，同时还可以减少人为因素造成的显示面板刮伤，提高产品良率。
上述导电膜去除装置还包括驱动部件240。驱动部件240设置为驱动承载台210上的显示面板从激光部件220的作业区域移动至清洁部件230的作业区域，从而实现整个处理过程的自动化，无需人工参与。在一实施例中，承载台210可以为传输带。此时，激光部件220和清洁部件230沿传输带的长度方向依次设置。因此驱动部件240可以控制传输带移动，以将显示面板移动至相应的作业区域。例如，驱动部件240可以控制传输带移动，以将显示面板移动至激光部件220的作业区域。待激光部件220操作完成后，再将显示面板移动至清洁部件230的作业区域，以完成清洁处理操作。在另一实施例中，承载台210为可旋转结构。因此，驱动部件可以驱动承载台210旋转，从而可以根据需要将显示面板旋转至对应设备下方的作业区域，以完成相应的操作。可以理解，承载台210包括但不限于上述结构。
在一实施例中，上述导电膜去除装置还可以包括固定部件250。固定部件250设置为固定承载台210、激光部件220和清洁部件230。具体地，固定部件250为高度可调的支架结构，从而根据操作需要调节承载台210、激光部件220或者清洁部件230的高度。
图4为一实施例中的导电膜去除装置的结构示意图。该导电膜去除装置包括承载台410、激光部件420和清洁部件430。
激光部件420包括第一固定调节单元422和激光头424。第一固定调节单元422与激光头424连接。第一固定调节单元422可以对激光头424距离显示面板的距离以及激光的入射角度进行调整。也即，在本实施例中，激光头424为可转动结构。激光头424发射的激光波长可以根据导电膜的树脂种类及其固定行为进行选择调整，激光能量密度同样可以根据导电膜的厚度以及残胶量进行选择调整。在一实施例中，激光部件420还可以包括隔离单元，以将导电膜区域与显示面板的其他区域隔离开，从而使得激光仅对该区域进行处理。
清洁部件430包括第二固定调节单元432和清洁工具434。第二固定调节单元432设置为对清洁工具434与显示面板之间的距离以及作用力大小进行调整，从而确保清洁工具434对显示面板均匀施力，避免显示面板被刮伤。在一实施例中，清洁部件430还可以包括清洗液喷涂装置。清洗液喷涂装置固定在第二固定调节单元432上。清洗液喷涂装置设置为对激光部件420的处理区域进行喷涂，或者直接对清洁工具434进行喷涂。第二固定调节单元432可以为机械手臂或者移动元件，以控制清洁工具434左右或者上下擦拭，达到清洁的目的。清洁工具可以选用柔韧性擦拭工具，以避免刮伤显示面板。清洗液为同时具有亲油性和亲水性的有机溶剂，从而很好的去除残余物质。在本实施例中，清洁工具为不织布。在其他的实施例中，也可以采用其他具有柔韧性特点且不会刮伤显示面板线路的材料。清洗液可例如为异丙醇溶液（IPA）。在其他的实施例中，可以采用其他能够与水自由混合，对亲油性物质具有良好溶解力的清洗液。
图5为采用上述装置和方法对导电膜进行去除后的显示面板的示意图。采用上述装置和方法，可以实现对导电膜的自动清洁，有效降低了人工成本，且不会对显示面板进行刮伤，提高了产品重工良率，减少产品报废率。
上述装置可以应用于LCD显示面板、OLED显示面板、QLED显示面板等显示面板中，同时上述装置也可以适用于平面显示面板或者曲面显示面板中。可以理解，上述装置可以应用的显示面板种类包括但并不限于上述显示面板种类。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (20)

  1. 一种导电膜去除方法，包括：
    提供待去除导电膜的显示面板；
    利用激光对所述显示面板上待去除的导电膜进行处理；及
    在激光处理后对所述显示面板进行清洁处理。
  2. 根据权利要求1所述的方法，其中，所述利用激光对所述显示面板上待去除的导电膜进行处理的步骤为：
    利用激光刻蚀方法将所述显示面板上待去除的导电膜去除。
  3. 根据权利要求1所述的方法，其中，所述利用激光对所述显示面板上待去除的导电膜进行处理的步骤为：
    利用激光对所述待去除的导电膜进行处理以使得所述导电膜失去粘性。
  4. 根据权利要求1所述的方法，其中，还包括在所述显示面板上设置隔离区的步骤；所述隔离区用于将所述导电膜与所述显示面板其他区域隔离。
  5. 根据权利要求1所述的方法，其中，所述在激光处理后对所述显示面板进行清洁处理的步骤为：
    对激光处理区域喷涂清洗液并用清洁工具对所述显示面板进行清洁。
  6. 根据权利要求5所述的方法，其中，所述清洁工具为柔性擦拭工具；所述清洗液为同时具有亲水性和亲油性的有机溶剂。
  7. 根据权利要求6所述的方法，其中，所述清洁工具为无纺布，所述清洗液为异丙醇溶液。
  8. 根据权利要求1所述的方法，其中，所述在激光处理后对所述显示面板进行清洁处理的步骤为：利用喷涂有清洗液的清洁工具对所述显示面板进行清洁。
  9. 一种导电膜去除装置，包括：
    承载台，设置为放置待去除导电膜的显示面板；
    激光部件，设置在所述承载台上方，设置为产生激光以对所述显示面板上待去除的导电膜进行处理；及
    清洁部件，设置在所述承载台上方，设置为对所述激光部件处理后的显示面板进行清洁处理。
  10. 根据权利要求9所述的装置，其中，还包括驱动部件；所述驱动部件设置为驱动所述承载台上的显示面板从所述激光部件的作业区域移动至所述清洁部件的作业区域。
  11. 根据权利要求10所述的装置，其中，所述承载台为传输带；所述激光部件和所述清洁部件沿所述传输带的长度方向依次设置；所述驱动部件设置为控制所述传输带移动以将显示面板移动相应的作业区域。
  12. 根据权利要求10所述的装置，其中，所述承载台为可旋转结构；所述驱动部件设置为驱动所述承载台旋转以将所述显示面板旋转至对应的设备下方的作业区域内。
  13. 根据权利要求9所述的装置，其中，还包括固定部件；所述固定部件设置为固定所述承载台、所述激光部件和所述清洁部件；所述固定部件为高度可调的支架结构。
  14. 根据权利要求9所述的装置，其中，所述激光部件包括：
    激光头；及
    第一固定调节单元；所述第一固定调节单元与所述激光头连接；所述第一固定调节单元设置为对所述激光头与所述显示面板之间的距离以及激光的入射角度进行调整。
  15. 根据权利要求9所述的装置，其中，所述清洁部件包括：
    清洁工具；及
    第二固定调节单元；所述第二固定调节单元设置为固定所述清洁工具，并对所述清洁工具与所述显示面板之间的距离进行调整。
  16. 根据权利要求15所述的装置，其中，所述清洁部件还包括清洗液喷涂装置，所述清洗液喷涂装置固定在所述第二调节单元上；所述清洗液喷涂装置设置为对激光部件的处理区域进行喷涂或者设置为对所述清洁工具进行喷涂。
  17. 根据权利要求16所述的装置，其中，所述清洁工具为柔性擦拭工具；所述清洗液喷涂装置中的清洗液为同时具有亲水性和亲油性的有机溶剂。
  18. 根据权利要求17所述的装置，其中，所述清洁工具为无纺布，所述清洗液为异丙醇溶液。
  19. 根据权利要求9所述的装置，其中，所述激光部件包括隔离单元；所述隔离单元设置为将所述导电膜与所述显示面板的其他区域进行隔离。
  20. 一种导电膜去除装置，包括：
    承载台，设置为放置待去除导电膜的显示面板；
    激光部件，设置在所述承载台上方，设置为产生激光以对所述显示面板上待去除的导电膜进行处理；所述激光部件包括第一固定调节单元和激光头；所述第一固定调节单元与所述激光头连接；所述第一固定调节单元设置为对所述激光头与所述显示面板之间的距离以及激光的入射角度进行调整；
    清洁部件，设置在所述承载台上方，设置为对所述激光部件处理后的显示面板进行清洁处理；所述清洁部件包括第二固定调节单元和清洁工具；所述清洁工具固定在所述第二固定调节单元上；所述第二固定调节单元设置为对所述清洁工具与所述显示面板之间的距离进行调整；
    固定部件，设置为固定所述承载台、所述激光部件和所述清洁部件；以及
    驱动部件，设置为驱动所述承载台上的显示面板从所述激光部件的作业区域移动至所述清洁部件的作业区域。
PCT/CN2017/085336 2016-11-15 2017-05-22 导电膜去除方法和装置 Ceased WO2018090592A1 (zh)

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