WO2018066833A1 - Dispositif d'affichage comprenant une couche détachable et fluidique - Google Patents

Dispositif d'affichage comprenant une couche détachable et fluidique Download PDF

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Publication number
WO2018066833A1
WO2018066833A1 PCT/KR2017/010132 KR2017010132W WO2018066833A1 WO 2018066833 A1 WO2018066833 A1 WO 2018066833A1 KR 2017010132 W KR2017010132 W KR 2017010132W WO 2018066833 A1 WO2018066833 A1 WO 2018066833A1
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WO
WIPO (PCT)
Prior art keywords
window
layer
display
adhesive
display apparatus
Prior art date
Application number
PCT/KR2017/010132
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English (en)
Korean (ko)
Inventor
김영수
Original Assignee
주식회사 맥스젠테크놀로지
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
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Priority claimed from KR1020170047710A external-priority patent/KR101911698B1/ko
Application filed by 주식회사 맥스젠테크놀로지 filed Critical 주식회사 맥스젠테크놀로지
Publication of WO2018066833A1 publication Critical patent/WO2018066833A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Definitions

  • the present invention relates to a display device and a manufacturing method thereof, and more particularly, to a display device to which a detachable window or a touch screen is applied.
  • a display such as a liquid crystal display (LCD), an organic light emitting diode (OLED), and an electrophoretic display (EPD) forms a screen.
  • LCD liquid crystal display
  • OLED organic light emitting diode
  • EPD electrophoretic display
  • the device employs a touch screen to provide convenience of operation.
  • a window made of tempered glass or transparent polymer resin is disposed on the front of the touch screen.
  • the window is divided into a screen portion and a bezel portion on the rim at the center thereof, and protects the display device from damage due to external impact or contact.
  • the window is adhered to and fixed to the touch screen with a transparent adhesive (OCA) or ultraviolet curing adhesive.
  • OCA transparent adhesive
  • ultraviolet curing adhesive ultraviolet curing adhesive
  • Korean Patent No. 10-1574923 proposes a display apparatus including a detachable window and a detachable method thereof.
  • the patent can easily replace the damaged window, the separation of the window from the display device is simple, the process of manufacturing the display device is simple, low manufacturing cost, it can be designed in various ways.
  • a display device capable of attaching and detaching a touch screen is also possible.
  • it is necessary to supplement the functions such as adjusting the adhesive force detachable to the function proposed in the patent or to facilitate the removal of bubbles. This is because the removable window or the touch screen is set to meet various uses and environments.
  • the problem to be solved by the present invention is to easily replace the damaged window or touch screen, the separation of the window or touch screen in the display device is simple, the process of manufacturing the display device is simple, low manufacturing cost, various
  • the present invention provides a display device having a removable fluidized bed that complements a function such as adjusting adhesion to a detachable function or facilitating removal of bubbles.
  • a display device comprising a window, a touch screen and a display, a window formed with a removable pocket having an adhesive force to the window is 0.1gf / 25mm to 500gf / 25mm
  • a device to be attached to and detached from the structure and the detachable pocket of the window structure wherein the device to be attached is any one selected from a touch screen, a touch screen cover layer, or a display.
  • the detachable pocket includes an adhesive surface adhered to the transparent sheet, an adhesive surface attached to the display component, and a side surface positioned between the adhesive surface and the adhesive surface to form sidewalls, and the removable pocket includes a fluid fluid Provides space to be filled.
  • the adhesive surface, the adhesive surface and the side surface may be integrally formed.
  • the adhesive surface and the adhesive surface may be bonded to the partition wall forming the side surface.
  • the partition wall may be formed of a single layer made of curable resin.
  • the partition wall may be formed by repeating the polymer film and the adhesive layer.
  • the inner surface of the partition wall may be flat.
  • the inner surface of the partition wall may be curved.
  • the inner surface of the partition wall may form irregularities.
  • the width W1 bonded to the adhesive surface and the width W2 bonded to the adhesive surface may be different from each other in the partition wall.
  • the adhesion device may include an adhesion reducing layer.
  • the adhesion reducing layer may be coated with a fluorine resin or a silicone resin.
  • the adhesive surface may include a stress control pattern.
  • the touch screen, the touch screen cover layer or the top of the display may include a fine concavo-convex or pattern layer for increasing or reducing the adhesion.
  • a rounding part may be disposed at a corner between the adhesive surface and the side surface. At least one surface of the adhesive surface or the adhesive surface constituting the space may include a water repellent layer.
  • the flowable fluid may be a gas or a liquid or a mixture thereof.
  • the liquid may be water, oil or silicone resin or polymer gel or mixtures thereof.
  • the flowable fluid may fill all or part of the space.
  • the display device having a detachable fluidized bed of the present invention by applying a detachable fluidized bed containing a fluid to a display, and applying a window structure or a touch screen on which the detachable fluidized layer is formed to a display device, the adhesive force detachable to the detachable function is controlled or bubbled. Can be easily removed.
  • FIG. 1 is a cross-sectional view illustrating a first display device including a detachable first window structure according to the present invention.
  • FIG. 2 is a cross-sectional view illustrating the removable fluidized bed of FIG. 1.
  • 3 to 5 are cross-sectional views showing modifications of the detachable fluidized bed applied to the detachable first window structure according to the present invention.
  • FIG. 6 is a cross-sectional view for describing a second display device including a detachable first window structure according to the present invention.
  • FIG. 7 is a cross-sectional view for describing a third display device including a detachable second window structure according to the present invention.
  • FIG. 8 is a cross-sectional view for describing a fourth display apparatus including a detachable third window structure according to the present invention.
  • FIG. 9 is a cross-sectional view for describing a fifth display apparatus including a detachable fourth window structure according to the present invention.
  • FIG. 10 is a cross-sectional view for describing a sixth display device including a detachable fifth window structure according to the present invention.
  • FIG. 11 is a view schematically showing the appearance of a display apparatus including a detachable window structure according to the present invention.
  • An embodiment of the present invention proposes a display device that complements a function such as adjusting the adhesion force detached to a detachable function or facilitating bubble removal by applying a window structure or a touch screen on which a detachable fluidized layer is formed to a display device.
  • the window structure or the touch screen is formed with a removable fluidized layer detachable on the touch screen or display, respectively. Therefore, the to-be-attached device can be said to be associated with a touch screen or display.
  • the removable fluidized bed of the present invention is limited to being detached from the touch screen and the display, and is clearly distinguished from the conventional window protection film detachable from the window. That is, a device composed of a display without a window or a touch screen is not a completed display device. The display device is completed only when a window or a touch screen is attached. By the way, the window protective film is attached to the window of the present invention, the window protective film is attached to the already completed display. Therefore, although the window or touch screen of the present invention is an essential component of the display device, the conventional window protection film corresponds to an auxiliary component that can be selectively applied to the display device.
  • the display device applied to the embodiment of the present invention refers to a mobile device, an information processing terminal, a television, and the like.
  • the mobile device may be a mobile phone, a smartphone, a tablet, or the like, and the information processing terminal may be an ATM or a kiosk.
  • the display of the display device may be flat or curved, or may be flexible.
  • the image processing device includes a window, a touch screen, and a display. Therefore, the window is a generic term for windows of all image processing devices such as windows of mobile devices, windows of information processing terminals, and televisions.
  • the touch screen and the display also refer to the touch screen and the display applied to all image processing devices.
  • the window structure is divided into first to fourth window structures detachable from the touch screen and the display for convenience of description. That is, the first to fourth window structures are attached to and detached from the touch screen, the cover layer of the touch screen, and a display (hereinafter, also referred to as a device to be glued).
  • a display hereinafter, also referred to as a device to be glued.
  • the embodiment of the present invention shows an example of a display device to which the first to fourth window structures are applied, but may be applied to other types of display devices within the scope of the present invention.
  • the window structure of the present invention is manufactured separately and attached to the attached device. In this case, the window structure may be attached by hand.
  • FIG. 1 is a cross-sectional view for describing a first display apparatus 100 including a detachable first window structure according to an exemplary embodiment of the present invention.
  • 2 is a cross-sectional view illustrating the detachable pocket 50 of FIG. 1.
  • a cross-sectional view of a strict meaning is not represented, and there may be elements that may not appear on the cross-section for convenience of description.
  • the first display apparatus 100 is formed by sequentially stacking the display 10, the adhesive layer 12, the touch screen 14, the removable pocket 50, and the window 20. At this time, it is referred to as the first window structure 22 including the detachable pocket 50 and the window 20.
  • the display 10 includes a liquid crystal display (LCD), an organic light emitting diode (OLED), an electrophoretic display (EPD), and the like, and may also use quantum dots.
  • a thermosetting adhesive or an ultraviolet curable adhesive may be used for the adhesive layer 12.
  • the present invention is not limited thereto, and an OCA tape may be used.
  • the touch screen 14 has conductive patterns formed on one side or both sides of an insulating layer made of metal oxide or plastic. The conductive pattern is mainly applied to a metal oxide, and the metal oxide includes ITO, ATO, ZnO, or Cu, conductive polymer or silver nanowire.
  • the window 20 can be used without limitation as long as it is a transparent material.
  • it may include a glass substrate or a plastic substrate.
  • the glass substrate may be tempered glass
  • the plastic substrate may be polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyether sulfone (PES), polyimide (PI), polyarylate (PAR), polycarbonate (PC), or PMMA (PMMA).
  • PET polyethylene terephthalate
  • PEN polyethylene naphthalate
  • PES polyether sulfone
  • PI polyimide
  • PAR polyarylate
  • PC polycarbonate
  • PMMA PMMA
  • polymethyl methacrylate) or COC (cycloolefin copolymer) may include any one or more than one.
  • the window 20 may also be a laminated structure in which tempered glass and plastic substrate are formed in multiple layers.
  • the window 20 may be transparent or have a printed layer expressing various functions.
  • the printing layer may be applied to any one or any one or more coating, such as transparent, translucent or color.
  • the print layer may be formed by inkjet printing using silk printing or UV or inkjet printing or transfer using thermosetting.
  • a functional coating layer such as anti-fingerprint coating or antimicrobial coating or anti-scratch coating may be formed.
  • the functional coating layer may be formed by a dry coating such as wet coating and deposition by applying a coating liquid.
  • the lower end of the glass substrate or the plastic substrate of the window 20 may be provided with characteristics such as shielding, antireflection, blue light blocking, electromagnetic wave blocking, privacy, and the like.
  • an opening may be formed in the window 20 to expose a button, a camera, a speaker, or the like.
  • an adhesion reducing layer 16 may be added on the touch screen 14.
  • the adhesion reducing layer 16 lowers the frictional force to increase the slip property.
  • the adhesion reducing layer 16 allows the first window structure 22 to be easily detached from the touch screen 14.
  • the adhesion reducing layer 16 may use a coating material of fluorine resin or silicone resin.
  • the adhesion reducing layer 16 may be formed by depositing titania (TiO 2 ) or silica (SiO 2 ) on the touch screen 14, and then coating a fluorine resin or a silicone resin on the deposited touch screen 14. .
  • the fluorine resin or the silicone resin may be formed by an ECC (Easy Cleaning Coating) method. Applying the adhesion reducing layer 16 can more effectively suppress the generation of bubbles when the window 20 is attached. In addition, the adhesion reducing layer 16 allows the consumer to easily attach and detach the first window structure 22 by themselves without any tools.
  • the reduced adhesion layer 16 may be formed on all or part of the fine irregularities. Part of the fine irregularities is referred to as an adhesion reducing layer pattern.
  • the adhesion reducing layer 16 may include a pattern made of fine irregularities.
  • the uneven portion is not transparent compared to the uneven portion, but when the adhesion reducing layer 16 is attached to the detachable pocket 50, the adhesive layer 60 fills the space between the uneven Transparency is restored. That is, the fine irregularities are included in the adhesion reducing layer 16 in a regular or irregular whole or locally.
  • the removable pocket 50 has a self adhesive force.
  • the self-adhesive force is a property that the removable pocket 50 adheres to itself without bubbles even by placing the removable pocket 50 on the touch screen 14.
  • the adhesion reducing layer 16 is applied to the touch screen 14, it has a more improved self-adhesive force than when there is no adhesion reducing layer 16.
  • the adhesive force according to the embodiment of the present invention may vary depending on the presence of the adhesion reducing layer 16.
  • the adhesive force in the case where the adhesive reducing layer 16 is present is 0.5 gf / 25 mm to 500 gf / 25 mm, but the adhesive force in the absence of the adhesive reducing layer 16 is 0.1 gf / 25 mm to 200 gf / 25 mm.
  • the adhesion reducing layer 16 is present, it is easier to attach the first window structure 22 without bubbles.
  • separation of the first window structure 22 occurs relatively easily.
  • the detachable pocket 50 is a layer or the adhesion reducing layer 16 is detachable may include a bend.
  • examples of the curves are exaggerated for convenience of explanation.
  • the curvature may vary as convex (a), concave (b), curved surface (c), and may exist without dividing the screen area and the bezel area.
  • the bending may be made to implement the functions of the first display apparatus 100 or may be caused in various ways as it occurs inevitably in the manufacturing process.
  • the detachable pocket 50 is bonded to the window 20 by the adhesive layer 70.
  • the adhesive layer 60 is formed on the surface opposite to the adhesive layer 70 with respect to the removable pocket 50.
  • the adhesive layer 60 attaches the detachable pocket 50 to the to-be-adhered device with curvature.
  • the adhesive layer 70 is not limited thereto, but may be made of any one of an acrylic resin, a silicone resin, an epoxy resin, a urethane resin, or a composite resin thereof.
  • the pressure-sensitive adhesive layer 60 may be, for example, any one selected from a pressure-sensitive adhesive or a mixture thereof or a copolymer thereof in which a crosslinking agent is mixed with a thermosetting resin or an ultraviolet curable resin, which is an acrylic resin, a silicone resin, or a urethane resin.
  • the adhesive layer 60 may harden a part to adjust the adhesive force.
  • the detachable pocket 50 has an adhesive surface 50a, an adhesive surface 50b, and a side surface 50c to provide a first space d in which a fluid fluid 50d is filled.
  • the side surface 50c is positioned between the adhesive surface 50a and the adhesive surface 50b to form a side wall.
  • the size of the first space d provided by the removable pocket 50 is determined according to the size, shape, and the like of the substructure to which the removable pocket 50 of the present invention is attached.
  • the outer side of the side 50c may have the same profile as the window 20, but in some cases the side 50c may enter the inner side of the window 20 by a predetermined inner margin. The inner margin may prevent the adhesive layer 70 and the adhesive layer 60 from flowing out of the window 20.
  • the inner margin is not necessarily limited thereto, but is preferably larger than 0 mm and 0.5 mm or less.
  • the side surface 50c may protrude outside the window 20 by a predetermined outer margin. Having the outer margin may prevent the user from being injured such as a cut due to the side of the window 20.
  • Removable pocket 50 may be applied to a transparent synthetic resin or natural resin, preferably PO (PolyOlefin), PET (PolyEthyleneTerephthalate), PEN (PolyEthyleneNaphthalate), PES (PolyEtherSulfone), PI (PolyImide), PAR (PolyARylate), PC (PolyCarbonate), PolyMethylMethAcrylate (PMMA), PolyUrethane (PU), Thermal PolyUrethane (TPU), Tri-Acrtyl-Cellulose (TAC), CycloOlefin Copolymer (COC), polylactic acid, or at least one selected from the group consisting of polymers thereof. In some cases, layers of the above resins may be laminated.
  • PO PolyOlefin
  • PET PolyEthyleneTerephthalate
  • PEN PolyEthyleneNaphthalate
  • PES PolyEtherSulfone
  • PI PolyImide
  • PAR PolyARylate
  • the detachable pocket 50 may mix thermoplastic elastomers with the resins, particularly on the adhesive surface 50b, in order to secure flexibility.
  • Thermoplastic elastomers are triblock copolymers with typical molecular structures, and in particular, olefinic thermoplastic elastomers are materials in which olefin resins such as polyethylene and polypropylene and olefin rubbers (eg, EDPM and ethylene propylene diene monomers) are mainly combined.
  • olefin resins such as polyethylene and polypropylene and olefin rubbers (eg, EDPM and ethylene propylene diene monomers) are mainly combined.
  • olefin resins such as polyethylene and polypropylene and olefin rubbers (eg, EDPM and ethylene propylene diene monomers) are mainly combined.
  • a polyolefin elastomer is preferable.
  • Polyolefin elastomers have polystyrene or polypropylene in the hard phase, styrene-propylene rubber (EPR) and ethylene-propylene-diene rubber (EDPM) in the soft phase.
  • the gel fraction of the thermoplastic elastomer is preferably 20 to 90%. If the gel fraction is less than 20%, the degree of crosslinking is insufficient, and the amount of the elastomer melts too much during thermal fusion. If the gel fraction exceeds 90%, the degree of crosslinking is too large and the rigidity is inferior.
  • the adhesive surface 50a, the adhesive surface 50b, and the side surface 50c of the removable pocket 50 all have the same thickness, or the thicknesses of the adhesive surface 50a, the adhesive surface 50b, and the side surface 50c are different from each other. It can be different.
  • the side surface 50c is made relatively thin, deformation is easily caused by the flowable fluid 50d.
  • the side surface 50c is relatively thick, the flowable fluid 50d is mainly deformed by the adhesive surface 50b in contact with the bend.
  • the thickness of the adhesion surface 50b becomes thin the deformation
  • a stress control pattern 50e may be formed on the adhesive surface 50b to induce the adhesive surface 50b to easily protrude in the bending direction.
  • the stress control pattern 50e may be irregularities such as grooves and fin patterns, and a banding film for inducing bending may be attached to the adhesive surface 50b.
  • the bending film is a film that bends itself to facilitate bending of the adhesive surface 50b when an external force is applied.
  • a groove is provided as one example of the stress control pattern 50e.
  • a rounding part 50f may be provided at a space corner formed by the adhesive surface 50a and the side surface 50c in the first space d. When the space corner is rounded, the flow of the fluid 50d is directed toward the adhesive face 50b.
  • the fluid 50d may be a gas, a liquid, an oil, a polymer gel, or a mixture thereof, which is a transparent material, and has a fluidity that changes in form by pressure.
  • the gas may be air, an inert gas, or the like, and the liquid, oil, or polymer gel may include water, silicone oil, silicone resin, polyurethane gel, or the like.
  • Flowable fluid 50d may fill all or part of first space d. The extent to which the fluid fluid 50d fills the first space d is adjusted in consideration of the size of the first space d, the material and thickness of the detachable pocket 50, and the shape of the bend.
  • the detachable pocket 50 according to the embodiment of the present invention is flexibly deformed according to the shape of the bend, so that it is attached well regardless of the shape of the bend.
  • Flowable fluid 50d may comprise a material that is cured with heat or ultraviolet light. If a curable material is included, the shape is fixed by curing of heat or ultraviolet light. As such, when the shape is fixed, the detachable pocket 50 may be implemented according to the shape of the curve. The curing may occur temporarily and may occur slowly over time. When it rises slowly with time, it also includes hardening by the ultraviolet-ray of sunlight.
  • the pressure-sensitive adhesive surface 50b detachably attached to the device to be bonded may be modified without coating the adhesive.
  • the adhesive force on the surface can be changed to 0.1gf / 25mm to 500gf / 25mm.
  • the continuous treatment is preferably a plasma treatment after the corona treatment.
  • 3 to 5 are cross-sectional views showing modifications of the detachable pocket 50 applied to the detachable first window structure 22 according to the embodiment of the present invention. Since only a few modified examples of the removable pocket 50 as an example, it can be variously modified within the scope of the present invention.
  • the polymer film 71 is interposed between the removable pocket 50 and the window 20.
  • the transparent polymer film 71 is bonded to the detachable pocket 50 by the adhesive layer 72.
  • the polymer film 71 is preferably PolyEthyleneTerephthalate (PET), PolyEthyleneNaphthalate (PEN), PolyEtherSulfone (PES), PolyImide (PI), PolyARylate (PAR), PolyCarbonate (PMMA), PolyMethyl MethAcrylate (PUMA), or Polyurethane (PolyUrethane).
  • TPU Thermal PolyUrethane
  • TAC Tri-Acrtyl-Cellulose
  • COC CycloOlefin Copolymer
  • the outer side of the polymer film 71 may have the same profile as the window 20, but in some cases, the polymer film 71 may enter the inner side of the transparent sheet by a predetermined inner margin. When the inner margin is provided, the adhesive layers 70 and 72 and the adhesive layer 60 may be prevented from flowing out of the window 20.
  • the inner margin is not necessarily limited thereto, but is preferably larger than 0 mm and 0.5 mm or less.
  • the polymer film 71 may protrude outside the window 20 by a predetermined outer margin. Having the outer margin may prevent the user from being injured such as a cut due to the side of the window 20.
  • a water repellent layer 50g exists on at least one inner surface of the adhesive surface 50a and the adhesive surface 50b of the removable pocket 50.
  • the water repellent layer 50g is formed on any one of the adhesive surface 50a, the adhesive surface 50b, or the adhesive surface 50a / adhesive surface 50b.
  • the water repellent layer 50g includes any one of silicon-based or fluorine-based materials or a mixture thereof.
  • the silicon-based layer has a contact angle of 65 degrees to 103 degrees and a fluorine based 103 to 121 degrees.
  • Representative water repellent layer (50g) material is a perfluoro compound (perfluoro compound).
  • the coating method of the water repellent layer 50g is a wet coating method, a known method is applied.
  • the first space d is converted into the second space f by the water repellent layer 50g.
  • the water repellent layer 50g is present, as shown in Fig. 3, the watermark of the fluid 50d that may occur when the adhesive surface 50a and the adhesive surface 50b come into contact with each other is prevented, and the fluid 50d Quickly move to the second space (f). Since the watermark greatly inhibits the clarity of the screen of the first display apparatus 100, it is preferable to prevent the watermark. Since the cause of generating the watermark is eliminated, the clarity of the screen is not deteriorated.
  • the removable pocket 52 is filled with a fluid fluid 50d in the third space i.
  • the detachable pocket 52 is comprised including the adhesive surface 52a, the adhesive surface 52b, and the partition 52c.
  • the partition wall 52c is a side surface which is located between the adhesive surface 52a and the adhesive surface 52b to form a side wall.
  • the adhesive face 52a and the adhesive face 52b of the removable pocket 52 are the same as the adhesive face 52a and the adhesive face 52b in material and the like.
  • the thicknesses of the adhesive surface 52a and the adhesive surface 52b of the removable pocket 52 may be determined differently from the adhesive surface 52a and the adhesive surface 52b of the removable pocket 52. This is because the detachable pocket 52 has a different structure from the detachable pocket 50 described above.
  • the removable pocket 52 may mix thermoplastic elastomer especially in the adhesive surface 52b.
  • the partition wall 52c may be formed of a single layer or multiple layers.
  • the single layer may be made of a curable resin, and the multilayer may allow the polymer film and the adhesive layer to be repeatedly stacked.
  • the partition wall 52c may be adhered to the adhesive surface 52a and the adhesive surface 52b with an adhesive, or may be compressed by heat without the adhesive.
  • the width W1 of the portion bonded to the adhesive surface 52a and the width W2 of the portion bonded to the adhesive surface 52b may be the same as or different from each other. If the width W1 and the width W2 are different, the partition 52c may have a trapezoidal shape.
  • the width W1 and the width W2 are adjusted in consideration of the size of the third space i, the material and thickness of the detachable pocket 52, the shape of the bend, and the like.
  • the first window structure 22 of the present invention is manufactured separately and protected by a release film.
  • the release film is removed to attach the first window structure 22 to the touch screen 14 or the adhesion reducing layer 16.
  • the detachable pockets 50 and 52 are exposed.
  • the display on which the window 20 is mounted may be completed.
  • the first window structure 22 may be manually removed and a new first window structure 22 may be attached.
  • FIG. 6 is a cross-sectional view for describing a second display apparatus 200 including a detachable first window structure 22 according to an exemplary embodiment of the present invention.
  • a cross-sectional view of a strict meaning is not represented, and there may be elements that may not appear on the cross-section for convenience of description.
  • the second display apparatus 200 is the same as the first display apparatus 100 except that the adhesive layer 12 is not provided.
  • the third display apparatus 300 may employ all of the concepts described with reference to FIGS. 1 to 5. Here, it will be described with respect to the removable pocket 50.
  • the display 10, the touch screen 14, and the first window structure 22 are sequentially formed.
  • the touch screen 14 is a conductive pattern formed directly on the display 10. That is, the touch screen 14 is formed together with the conductive pattern formed on the display 10.
  • the first window structure 22 includes the detachable pocket 50. 52 described above.
  • the second display apparatus 200 may include an adhesion reducing layer 16. Materials, functions, and the like of the adhesion reducing layer 16 are the same as those described in the first display apparatus 100.
  • an additional element for providing various functions may be further included between the window 20 and the detachable pocket 50 of the first window structure 22 according to an exemplary embodiment of the present invention.
  • the additional element may include a transparent adhesive layer (OCA), a scattering prevention layer, and the like, and if necessary, a printing layer and a functional coating layer may be appropriately formed.
  • OCA transparent adhesive layer
  • a scattering prevention layer e.g., a scattering prevention layer
  • a printing layer and a functional coating layer may be appropriately formed.
  • the removable pocket 50 may be formed on the transparent synthetic resin film. Since these additional elements are well known, a detailed description thereof will be omitted.
  • FIG. 7 is a cross-sectional view for describing a third display apparatus 300 including a detachable first window structure 22 according to an exemplary embodiment of the present invention.
  • a cross-sectional view of a strict meaning is not represented, and there may be elements that may not appear on the cross-section for convenience of description.
  • the third display apparatus 300 is the same as the first display apparatus 100 except for introducing the touch screen cover layer 24. Accordingly, detailed description of the same reference numerals will be omitted.
  • the third display apparatus 300 may employ all of the concepts described with reference to FIGS. 1 to 5. Here, it will be described with respect to the removable pocket 50.
  • the third display apparatus 300 sequentially stacks the display 10, the adhesive layer 12, the touch screen 14, the cover layer 24, the removable pocket 50, and the window 20. Can be implemented.
  • the third display apparatus 300 may be directly bonded to the display 10 and the touch screen 14 without the adhesive layer 12 that is the same as the second display apparatus 200.
  • a conductive pattern for forming the touch screen 14 is disposed above or below the cover layer 24.
  • the cover layer 24 may be regarded as part of the touch screen 14.
  • the cover layer 24 prevents the touch screen 14 from being damaged by impact or contamination.
  • the third display apparatus 300 forms a touch screen 14 by directly forming a conductive pattern on the display 10, and in this case, the touch screen cover layer 24 may be positioned on the top of the display 10. .
  • the cover layer 24 is positioned inside the third display device 300. Since the cover layer 24 is positioned inside, the cover layer 24 is exposed to the outside of the third display apparatus 300, so that the cover layer 24 is not damaged by an impact or the like.
  • the cover layer 24 may include a printed layer or a functional coating layer, and may be beautiful to the third display apparatus 300 through various designs or translucent.
  • the cover layer 24 may exclude the influence of bending and step by various patterns, circuits, and the like of the touch screen 14. When the influence of the bending and the step disappears, the detachment by the detachable pocket 50 becomes easier.
  • the cover layer 24 may be used without limitation as long as it is a transparent material.
  • it may include a glass substrate or a plastic substrate.
  • the glass substrate may be tempered glass or non-tempered glass
  • the plastic substrate may also be polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyether sulfone (PES), polyimide (PI), polyarylate (PAR), PC (polycarbonate), PMMA (polymethyl methacrylate) or COC (cycloolefin copolymer) may include any one or more.
  • Plastic substrates are more preferred.
  • the thickness of the cover layer 24 may be sufficient to prevent the touch screen 14 from being damaged in the process of using the third display apparatus 300.
  • the third display apparatus 300 may include an adhesion reducing layer 16. Materials, functions, and the like of the adhesion reducing layer 16 are the same as those described in the first display apparatus 100.
  • FIG. 8 is a cross-sectional view for describing a fourth display apparatus 400 including a detachable second window structure 30 according to an exemplary embodiment of the present invention.
  • a cross-sectional view of a strict meaning is not represented, and there may be elements that may not appear on the cross-section for convenience of description.
  • the fourth display apparatus 400 is basically the same as the first display apparatus 100 except for changing the position of each floor.
  • the fourth display apparatus 400 may employ all of the concepts described with reference to FIGS. 1 to 5.
  • the description will be made mainly on the removable pocket 50.
  • the fourth display apparatus 400 is a stack of a display 10, a detachable pocket 50, a touch screen 14, an adhesive layer 12, and a window 20 sequentially.
  • the window 20, the adhesive layer 12, the touch screen 14, and the detachable pocket 50 form the second window structure 30.
  • the display 10 includes a liquid crystal display (LCD), an organic light emitting diode (OLED), an electrophoretic display (EPD), and the like, and may also use quantum dots.
  • a thermosetting adhesive or an ultraviolet curable adhesive may be used for the adhesive layer 12.
  • the present invention is not limited thereto, and an OCA tape may be used.
  • the touch screen 14 has conductive patterns formed on one side or both sides of an insulating layer made of metal oxide or plastic. The conductive pattern is mainly applied to a metal oxide, and the metal oxide includes ITO, ATO, ZnO, or Cu, conductive polymer or silver nanowire.
  • an adhesion reducing layer 16 may be added on the display 10.
  • the adhesion reducing layer 16 increases the contact angle to increase slip property.
  • the adhesion reducing layer 16 allows the second window structure 30 to be easily detached from the touch screen 14.
  • the adhesion reducing layer 16 may use a coating material of fluorine resin or silicone resin.
  • the adhesion reducing layer 16 may be formed by depositing titania (TiO 2 ) or silica (SiO 2 ) on the display 10, and then coating a fluorine resin or a silicon resin on the deposited display 10.
  • the fluorine resin or the silicone resin may be formed by an ECC (Easy Cleaning Coating) method.
  • the removable pocket 50 has a self adhesive force.
  • the self-adhesive force is a property that the removable pocket 50 adheres to itself without bubbles even by placing the removable pocket 50 on the touch screen 14.
  • the adhesion reducing layer 16 when applied to the display 10, it has a more improved self-adhesive force than when there is no adhesion reducing layer 16.
  • the adhesive force according to the embodiment of the present invention may vary depending on the presence of the adhesion reducing layer 16.
  • the adhesive force in the case where the adhesion reducing layer 16 is present is 0.5 gf / 25 mm to 500 gf / 25 mm. If there is no adhesion reducing layer 16, the adhesion is 0.1gf / 25mm to 200gf / 25mm.
  • the adhesion reducing layer 16 is present, it is easy to attach the second window structure 30 without bubbles. In addition, under the influence of the adhesion reducing layer 16, separation of the second window structure 30 occurs relatively easily.
  • the second window structure 30 of the present invention is manufactured separately and protected by a release film.
  • the release film is removed to attach the second window structure 30 to the display 10.
  • the release film is removed, the detachable pocket 50 is exposed.
  • the second window structure 30 having the removable pocket 50 exposed is manually attached to the display 10, the display on which the window 20 is mounted may be completed. Accordingly, unlike the conventional method, a precise bonding process is not required.
  • the second window structure 30 may be manually removed and a new second window structure 30 may be attached.
  • FIG. 9 is a cross-sectional view for describing a fifth display apparatus 500 including a detachable third window structure 34 according to an exemplary embodiment of the present invention.
  • a cross-sectional view of a strict meaning is not represented, and there may be elements that may not appear on the cross-section for convenience of description.
  • the fifth display apparatus 500 is the same as the first display apparatus 100 except for replacing the adhesive layer 12 with the detachable layer 32.
  • the fifth display apparatus 500 may employ all of the concepts described with reference to FIGS. 1 to 5. Here, it will be described with respect to the removable pocket 50.
  • the display 10, the detachable pocket 50, the touch screen 14, the detachable layer 32, and the window 20 are sequentially stacked on the fifth display apparatus 500.
  • the window 20, the detachable layer 32, the touch screen 14, and the detachable pocket 50 form the third window structure 34.
  • the removable layer 32 has the same function and role, but the reference numerals were different because there is a difference in the position formed.
  • the third window structure 34 is detachably attached to the display 10 by a detachable pocket 50.
  • the detachable pocket 50 may be attached to the display 10 in a state where the release film is removed.
  • the third window structure 34 may be detachably attached to the touch screen 14 by the detachable layer 32.
  • the third window structure 34 includes a detachable pocket 50 and a detachable layer 32 that can be detachably attached to the display 10 and the touch screen 14, respectively.
  • the detachable layer 32 may be any transparent material, but may be an acrylic polymer, a silicone polymer, a urethane polymer, a pressure sensitive adhesive having a crosslinking agent mixed in an ultraviolet curable resin, or a mixture thereof or a copolymer thereof.
  • the detachable layer 32 may be a single layer, a multilayer of different materials for each layer, or at least one layer may be a single layer.
  • the multilayer can appropriately select a material forming each layer, depending on the environment in which each of the detachable layers 32 of the present invention are used.
  • the thickness of each of the detachable layers 32 can be sufficient as the adhesion
  • the fifth display apparatus 500 may include an adhesion reducing layer 16. Materials, functions, and the like of the adhesion reducing layer 16 are the same as those described in the first display apparatus 400.
  • the window 20 and the removable pocket 50 of the second and third window structures 30 and 34 may further include an additional element to give a variety of functions to any one or all.
  • the additional element may include a transparent adhesive layer (OCA), a scattering prevention layer, and the like, and if necessary, a printing layer and a functional coating layer may be appropriately formed.
  • OCA transparent adhesive layer
  • a transparent adhesive layer including a print layer may be formed on the touch screen 14 and a transparent synthetic resin film (for example, a PET film) may be attached, and then a detachable pocket 50 may be formed on the transparent synthetic resin film. Since these additional elements are well known, a detailed description thereof will be omitted.
  • FIG. 10 is a cross-sectional view illustrating a sixth display apparatus 600 including a detachable fourth window structure 36 according to an exemplary embodiment of the present invention.
  • a cross-sectional view of a strict meaning is not represented, and there may be elements that may not appear on the cross-section for convenience of description.
  • the sixth display apparatus 600 is the same as the fourth display apparatus 400 except that the adhesive layer 12 is not provided. Accordingly, detailed description of the same reference numerals will be omitted.
  • the sixth display apparatus 600 may employ all of the concepts described with reference to FIGS. 1 to 5. Here, it will be described with respect to the removable pocket 50.
  • the sixth display apparatus 600 is a stack of a display 10, a detachable pocket 50, a touch screen 14, and a window 20.
  • the window 20, the touch screen 14, and the detachable pocket 50 form the fourth window structure 36.
  • the touch screen 14 is a conductive pattern formed directly under the window 20. That is, the touch screen 14 is formed together with the conductive pattern formed in the window 20.
  • the sixth display apparatus 600 may include an adhesion reducing layer 16. Materials, functions, and the like of the adhesion reducing layer 16 are the same as those described in the fourth display apparatus 400.
  • connection of the first to fourth window structures 22, 30, 34, 36 may be implemented.
  • the display apparatuses according to the embodiment of the present invention are replaced by selecting and attaching a new window structure. Specifically, the broken window structure is removed and replaced by attaching a new window structure. The replacement of the window structure can be carried out by the consumer, and the replacement time is very short. In addition, since only the window structure needs to be removed, the display device can be easily recycled. Furthermore, since the window structure is detachable by adhesion, it can be easily attached without bubbles. Since the manufacturer only needs to produce parts other than the window structure and does not have to perform the bonding process, the manufacturing process is simplified. In particular, when the adhesion reducing layer is present, it is easier to attach the window structure without bubbles, and separation of the window structure occurs relatively easily under the influence of the adhesion reducing layer.
  • FIG. 11 is a view schematically showing the appearance of a display device including a detachable window structure according to an embodiment of the present invention.
  • the display device is merely an example of a mobile device, and other forms may be applied within the scope of the technical idea of the present invention, including those described above.
  • the display device of the present invention may be designed in various ways.
  • the display device of the present invention can be designed such as a beautiful shape, various colors and patterns. This is because by detaching the original window structure and attaching a new structure, the appearance of the window structure can be changed to a desired design. Conventionally, in order to change the design, it is necessary to disassemble the window structure and re-bond the new window structure. However, the display device of the present invention is detached from the existing window structure, and the new window structure attached to the design changes. Accordingly, unlike the related art, the window structure of the present invention is not a necessity fixed to the display device, and may be treated as a consumable that can be attached and detached as necessary. In this way, if the design is diversified, the manufacturer of the display apparatus does not have to provide a service later in response to the design.
  • the display device having a removable fluidized bed of the present invention by attaching and detaching a window having a removable fluidized bed having an adhesive force of 0.1 gf / 25 mm to 500 gf / 25 mm, the damaged window is easily replaced and the separation of the window is simple.
  • the removable fluidized bed of the present invention is self-adhesive and can be easily attached and detached without bubbles.
  • the display device of the present invention has a simple manufacturing process, low manufacturing cost, and can be designed in various ways to satisfy the needs of consumers. Furthermore, since the window is easily replaced by anyone, it can be treated as a one-time consumable rather than a necessity fixed to the display device.
  • the present invention has been described in detail with reference to preferred embodiments, the present invention is not limited to the above embodiments, and various modifications may be made by those skilled in the art within the scope of the technical idea of the present invention. It is possible.
  • a separate means such as a groove may be provided in the injection molded product of the display device so that the window structure can be easily attached and detached.
  • the window or the touch screen has a removable fluidized layer and a corresponding touch screen or display has an adhesive reducing layer
  • the window or touch screen has an adhesive reducing layer and a corresponding touch screen or display May have a removable fluidized bed.
  • First to sixth display device 100, 200, 300, 400, 500, 600; First to sixth display device

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

L'invention concerne un dispositif d'affichage comprenant une couche détachable et fluidique et son procédé de fabrication. Le dispositif d'affichage permet le remplacement facile d'une fenêtre endommagée ou d'un écran tactile, simplifie la séparation d'une fenêtre ou d'un écran tactile de celui-ci, et peut être fabriqué à l'aide d'un processus simple et à faible coût, la couche détachable et fluidique étant complétée avec la fonction d'ajustement d'une force adhésive pour la fixation et le détachement ou l'élimination facile de bulles d'air en plus d'une fonction détachable permettant diverses conceptions pour celle-ci. Le dispositif comprend : une structure de fenêtre dans laquelle une poche détachable ayant une force adhésive de 0,1 gf/25 mm à 500 gf/25 mm est formée sur un côté de la fenêtre ; et un dispositif objet auquel la poche détachable de la structure de fenêtre est respectivement attachée ou détachée, la poche détachable comprenant : une surface adhésive liée à une feuille transparente ; une surface de viscosité fixée à un composant d'affichage ; et une surface latérale disposée entre la surface adhésive et la surface de viscosité et formant une paroi latérale, et fournissant un espace qui remplit un fluide.
PCT/KR2017/010132 2016-10-03 2017-09-15 Dispositif d'affichage comprenant une couche détachable et fluidique WO2018066833A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2016-0127306 2016-10-03
KR20160127306 2016-10-03
KR1020170047710A KR101911698B1 (ko) 2016-10-03 2017-04-13 탈부착 유동층을 가진 디스플레이 장치
KR10-2017-0047710 2017-04-13

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WO2018066833A1 true WO2018066833A1 (fr) 2018-04-12

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Cited By (1)

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CN111831146A (zh) * 2019-04-15 2020-10-27 万达光电科技股份有限公司 触控显示设备及显示设备

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KR20120134934A (ko) * 2011-06-03 2012-12-12 엘지전자 주식회사 디스플레이 모듈 및 이를 구비하는 이동 단말기
US20140078422A1 (en) * 2011-05-11 2014-03-20 Nitto Denko Corporation Transparent conductive laminate and touch panel
KR20140124578A (ko) * 2013-04-17 2014-10-27 엘지전자 주식회사 이동단말기
KR101574923B1 (ko) * 2015-01-20 2015-12-04 김영수 탈부착이 가능한 윈도우를 포함하는 디스플레이 장치 및 그 탈부착 방법
KR20160027464A (ko) * 2014-08-29 2016-03-10 크루셜텍 (주) 교체층을 가지는 휴대 단말기

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140078422A1 (en) * 2011-05-11 2014-03-20 Nitto Denko Corporation Transparent conductive laminate and touch panel
KR20120134934A (ko) * 2011-06-03 2012-12-12 엘지전자 주식회사 디스플레이 모듈 및 이를 구비하는 이동 단말기
KR20140124578A (ko) * 2013-04-17 2014-10-27 엘지전자 주식회사 이동단말기
KR20160027464A (ko) * 2014-08-29 2016-03-10 크루셜텍 (주) 교체층을 가지는 휴대 단말기
KR101574923B1 (ko) * 2015-01-20 2015-12-04 김영수 탈부착이 가능한 윈도우를 포함하는 디스플레이 장치 및 그 탈부착 방법

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111831146A (zh) * 2019-04-15 2020-10-27 万达光电科技股份有限公司 触控显示设备及显示设备

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