WO2016085120A2 - Capteur tactile intégré dans la plaque supérieure d'un panneau d'affichage à cristaux liquides - Google Patents

Capteur tactile intégré dans la plaque supérieure d'un panneau d'affichage à cristaux liquides Download PDF

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Publication number
WO2016085120A2
WO2016085120A2 PCT/KR2015/010941 KR2015010941W WO2016085120A2 WO 2016085120 A2 WO2016085120 A2 WO 2016085120A2 KR 2015010941 W KR2015010941 W KR 2015010941W WO 2016085120 A2 WO2016085120 A2 WO 2016085120A2
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Prior art keywords
liquid crystal
touch sensor
integrated touch
separator
crystal panel
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PCT/KR2015/010941
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English (en)
Korean (ko)
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WO2016085120A3 (fr
Inventor
천승환
김상국
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동우화인켐 주식회사
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Publication of WO2016085120A2 publication Critical patent/WO2016085120A2/fr
Publication of WO2016085120A3 publication Critical patent/WO2016085120A3/fr

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    • 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
    • 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
    • G02F1/133302—Rigid substrates, e.g. inorganic substrates
    • 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 liquid crystal display panel upper panel integrated touch sensor.
  • liquid crystal display devices and organic light emitting display devices having advantages such as light weight, thinness, and low power consumption are used for office automation devices and audio / video devices.
  • the liquid crystal display device includes a liquid crystal layer as the electro-optical active layer, and the organic light emitting display device includes an organic light emitting layer as the electro-optical active layer.
  • the liquid crystal display displays an image by changing an electrical signal into visual information by using a characteristic in which light transmittance of a liquid crystal, which is an intermediate state material between a liquid and a crystal, changes according to an applied voltage.
  • Conventional liquid crystal display devices are composed of two substrates provided with electrodes and a liquid crystal layer interposed between the two substrates. Such a liquid crystal display device is lighter in weight, smaller in volume, and operates with less power than other display devices having the same screen size.
  • a liquid crystal display device displays an image by selectively transmitting light generated from a light source at a rear side to each pixel of a liquid crystal display panel at a front side as a kind of light switch. That is, the conventional cathode ray tube (CRT) controls the brightness by adjusting the intensity of the electron beam, whereas the LCD displays the screen by controlling the intensity of light generated from the light source.
  • CTR cathode ray tube
  • the color filter substrate (upper substrate) on which the color filter is formed and the thin film transistor substrate (lower substrate) on which the thin film transistor (TFT) is formed are bonded together with the liquid crystal layer interposed therebetween. Consists of a structure.
  • the touch screen panel may be generally defined as a user interface attached to a display device to sense an electrical characteristic that changes at a touch point contacting an opaque object such as a finger or a touch pen.
  • the LCD including the touch screen panel detects a point where a user's finger or a touch pen contacts the screen and implements various applications based on the detected information.
  • Such a touch screen panel is generally attached to the outer surface of a flat panel display such as a liquid crystal display and an organic light emitting display, and commercialized.
  • the conventional structure has a disadvantage in that the overall thickness of the flat panel display apparatus is increased by attaching the touch screen panel to the outer surface of the flat panel display apparatus.
  • Korean Patent Laid-Open No. 2004-17139 discloses a touch panel integrated image display device and a method of manufacturing the same.
  • An object of the present invention is to provide a liquid crystal display panel upper panel integrated touch sensor having a significantly reduced thickness.
  • a liquid crystal driving electrode disposed on the photoalignable separator
  • the optical orientation membrane comprises a polyimide-based polymer or a polymer comprising a cinnamate group
  • the liquid crystal panel upper panel integrated touch sensor comprises a polyimide-based polymer or a polymer comprising a cinnamate group
  • the transparent electrode stack includes a sensing electrode and a protective film disposed on the sensing electrode, the liquid crystal panel upper panel integrated touch sensor.
  • the liquid crystal display device including a liquid crystal panel upper panel integrated touch sensor of any one of the above 1 to 5.
  • the photo-alignment separator is formed by coating and curing the composition for forming a photo-alignment membrane comprising a polyimide-based polymer or a polymer containing a cinnamate group, the liquid crystal panel upper panel integrated touch sensor Method of preparation.
  • the touch sensor of the present invention is integrated with the upper plate (upper substrate) of the liquid crystal panel, and thus has a significantly reduced thickness since no separate liquid crystal panel upper substrate is required.
  • the thin film may be implemented or usefully applied to a flexible touch screen panel.
  • FIG. 1 is a schematic cross-sectional view of a structure in which a touch sensor is coupled to a conventional liquid crystal panel upper plate.
  • FIGS. 2 to 4 are schematic cross-sectional views of a liquid crystal panel upper panel integrated touch sensor according to one embodiment of the present invention, respectively.
  • FIG. 5 and 6 are schematic manufacturing process diagrams of a liquid crystal panel upper panel integrated touch sensor according to an exemplary embodiment of the present invention.
  • the present invention is an optical orientation membrane; A liquid crystal driving electrode disposed on the photoalignable separator; And a transparent electrode stack disposed on the liquid crystal driving electrode; thus, a separate liquid crystal panel upper substrate is not required, and thus, has a significantly reduced thickness, thereby realizing an ultra thin film or being usefully applied to a flexible touch screen panel.
  • a liquid crystal panel top plate integrated touch sensor is an optical orientation membrane; A liquid crystal driving electrode disposed on the photoalignable separator; And a transparent electrode stack disposed on the liquid crystal driving electrode; thus, a separate liquid crystal panel upper substrate is not required, and thus, has a significantly reduced thickness, thereby realizing an ultra thin film or being usefully applied to a flexible touch screen panel.
  • the liquid crystal panel upper panel integrated touch sensor of the present invention comprises: an optical orientation membrane; A liquid crystal driving electrode disposed on the photoalignable separator; And a transparent electrode laminate disposed on the liquid crystal driving electrode.
  • FIG. 1 is a schematic cross-sectional view of a structure in which a touch sensor is coupled to a top panel of a conventional liquid crystal panel.
  • an upper substrate (hereinafter, upper panel) 300 has a liquid crystal driving electrode 200 and a liquid crystal driving electrode on one surface thereof.
  • the alignment layer 100 is included on the second surface 200, and the touch sensor 600 is attached (added on) to the other surface via the adhesive 400.
  • a touch sensor of a thin film such as a flexible touch sensor is often formed separately from the carrier substrate after the process proceeds on the carrier substrate due to the difficulty of process progress in the thin film. It further comprises a separator (500).
  • the photoalignable separator has the functions of an alignment layer and a separator at the same time, and a process is performed on the photoalignable separator to form a touch sensor, and thus no separate top plate is required. This reduces three or more layers and has a significantly reduced thickness.
  • FIGS. 2 to 4 are schematic cross-sectional views of a liquid crystal panel upper panel integrated touch sensor according to an exemplary embodiment of the present invention.
  • the photoalignable separator 10 may have a role of an alignment layer and a separator at the same time, and may be formed by applying a composition for forming a photoalignable separator on a carrier substrate.
  • composition for forming a photo-orientation membrane according to the present invention may include an alignment agent, a photoinitiator and an organic solvent commonly used in the art.
  • an alignment agent conventionally used in the art may be used without particular limitation.
  • a polyacrylate-based polymer, a polyamic acid, a polyimide-based polymer, or a polymer containing a cinnamate group can be used as the alignment agent, preferably a polyimide-based polymer or a polymer containing a cinnamate group, most preferably The polymer containing a cinnamate group can be used.
  • the polymer used as the alignment agent may have a weight average molecular weight of about 10,000-500,000, but is not limited thereto.
  • photoinitiators conventionally used in the art may be used without particular limitation.
  • a triazine compound an acetophenone compound, a biimidazole compound, an oxime compound, a benzoin compound, a benzophenone compound, a thioxanthone compound, an anthracene compound, etc. may be used, but is not limited thereto. no.
  • acetophenone type compound for example, diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, benzyl dimethyl ketal, 2-hydroxy-1- [4- (2- Hydroxyethoxy) phenyl] -2-methylpropane-1-one, 1-hydroxycyclohexylphenyl ketone, 2-methyl-1- (4-methylthiophenyl) -2-morpholinopropan-1-one , 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) butan-1-one, 2-hydroxy-2-methyl-1- [4- (1-methylvinyl) phenyl] propane- 1-one oligomer, 2-methyl-2-amino (4-morpholinophenyl) ethan-1-one, 2-ethyl-2-amino (4-morpholinophenyl) ethan-1-one, 2- Propyl-2-amino (4-morpholinophenyl) ethan-1-one, 2-butyl
  • biimidazole type compound 2,2'-bis (2-chlorophenyl) -4,4 ', 5,5'- tetraphenyl biimidazole, 2,2'-bis (2,3-, for example) Dichlorophenyl) -4,4 ', 5,5'-tetraphenylbiimidazole, 2,2'-bis (2-chlorophenyl) -4,4', 5,5'-tetra (alkoxyphenyl) biimi Dazole, 2,2'-bis (2-chlorophenyl) -4,4 ', 5,5'-tetra (trialkoxyphenyl) biimidazole, and a phenyl group at the 4,4', 5,5 'position is carbo The imidazole compound substituted with the alkoxy group etc.
  • 2,2'bis (2-chlorophenyl) -4,4 ', 5,5'-tetra phenylbiimidazole, 2,2'-bis (2,3-dichlorophenyl) -4,4', 5,5'-tetraphenylbiimidazole is preferably used.
  • Examples of the oxime compound include 0-ethoxycarbonyl- ⁇ -oxyimino-1-phenylpropan-1-one and the like.
  • benzoin type compound benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoin isobutyl ether, etc. are mentioned, for example.
  • benzophenone type compound for example, benzophenone, methyl 0- benzoyl benzoate, 4-phenyl benzophenone, 4-benzoyl-4'- methyl diphenyl sulfide, 3, 3 ', 4, 4'- tetra (tert) -Butyl peroxycarbonyl) benzophenone, 2,4, 6-trimethyl benzophenone, etc. are mentioned.
  • thioxanthone type compound 2-isopropyl thioxanthone, 2, 4- diethyl thioxanthone, 2, 4- dichloro thioxanthone, 1-chloro-4- propoxy thioxanthone, etc. are mentioned, for example. Can be mentioned.
  • anthracene-based compound examples include 9,10-dimethoxyanthracene, 2-ethyl-9,10-dimethoxyanthracene, 9,10-diethoxyanthracene, 2-ethyl-9,10-diethoxyanthracene, and the like. Can be.
  • an organic solvent conventionally used in the art may be used without particular limitation.
  • Ethylene glycol monoalkyl ethers such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether and ethylene glycol monobutyl ether;
  • Diethylene glycol dialkyl ethers such as diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol ethyl methyl ether, diethylene glycol dipropyl ether and diethylene glycol dibutyl ether;
  • Ethylene glycol alkyl ether acetates such as methyl cellosolve acetate, ethyl cellosolve acetate, ethylene glycol monobutyl ether acetate, and ethylene glycol monoethyl ether acetate;
  • Alkylene glycol alkyl ether acetates such as propylene glycol monomethyl ether acetate, propylene glycol
  • composition for forming an alignment film of the present invention may further include additives such as fillers, curing agents, leveling agents, adhesion promoters, antioxidants, ultraviolet absorbers, anti-aggregation agents, chain transfer agents and the like, as necessary.
  • composition for oriented film formation of Unexamined-Japanese-Patent No. 2013-238717 and International Publication No. 2012-014915 can be used.
  • the liquid crystal driving electrode 20 is disposed on the photoalignable separator 10.
  • the liquid crystal drive electrode 20 is an electrode for driving a liquid crystal to be disposed below when the liquid crystal panel upper panel integrated touch sensor of the present invention is applied to a liquid crystal display device.
  • the liquid crystal driving electrode 20 may be used without limitation as long as it is a conductive material.
  • the transparent electrode stack 30 is disposed on the liquid crystal drive electrode 20.
  • the transparent electrode stack 30 includes a sensing electrode for touch sensing, and specifically, may include a sensing electrode and a protective layer disposed on the sensing electrode.
  • the sensing electrode may be used without limitation as long as it is a conductive material.
  • the sensing electrode may be formed of two layers, and may include a second insulating film therebetween.
  • the second insulating film serves to electrically insulate the plurality of sensing electrodes from each other, and an organic or inorganic insulating material known in the art may be used without limitation.
  • the protective film serves to protect the sensing electrode, and the protective film may be formed of, for example, an organic or inorganic insulating material, but is not limited thereto.
  • the liquid crystal panel upper panel integrated touch sensor of the present invention may further include a first insulating film 40 disposed between the liquid crystal driving electrode 20 and the transparent electrode stack 30.
  • the first insulating layer 40 electrically separates the liquid crystal driving electrode 20 and the transparent electrode stack 30 and protects the liquid crystal driving electrode 20 and the sensing electrode.
  • the first insulating film 40 may be formed of the same material as the above-described second insulating film.
  • the liquid crystal panel upper panel integrated touch sensor of the present invention may further include a polarizer 50 disposed on the transparent electrode stack 30.
  • the polarizer 50 may include a polarizer and a protective film attached to at least one surface thereof.
  • the polarizer may be a polarizer commonly used in the art prepared according to a process including the steps of swelling, dyeing, crosslinking, stretching, washing, drying, and the like for forming a polarizer film.
  • the polarizer-forming film is not particularly limited as long as it is a dichroic substance, that is, a film that can be dyed with iodine, and the like, for example, a polyvinyl alcohol film, a polyvinyl alcohol film dehydrated, a polyvinyl alcohol film treated with dehydrochloric acid, Polyethylene terephthalate films, ethylene-vinyl acetate copolymer films, ethylene-vinyl alcohol copolymer films, cellulose films, partially gumified films thereof, and the like.
  • polyvinyl alcohol-based films are preferred in that they are excellent in effect of enhancing uniformity in polarization degree and excellent in dyeing affinity for iodine.
  • the protective film is not particularly limited as long as the film is excellent in transparency, mechanical strength, thermal stability, moisture shielding, and isotropy.
  • polyester film such as polyethylene terephthalate, polyethylene isophthalate, polybutylene terephthalate; Cellulose films such as diacetyl cellulose and triacetyl cellulose; Polycarbonate film; Acrylic films such as polymethyl (meth) acrylate and polyethyl (meth) acrylate; Styrene films such as polystyrene and acrylonitrile-styrene copolymers; Polyolefin-based films such as cycloolefin, cycloolefin copolymer, polynorbornene, polypropylene, polyethylene, and ethylene propylene copolymer; Vinyl chloride film; Polyamide films such as nylon and aromatic polyamides; Imide film; Sulfone film; Polyether ketone film; Sulfided polyphenylene-based films; Vinyl alcohol
  • the protective film may be attached to the polarizer through an adhesive.
  • an adhesive any water-based or UV adhesive known in the art may be used without limitation.
  • the liquid crystal panel upper panel integrated touch sensor of the present invention having the above configuration may have a significantly reduced thickness, and thus may be preferably applied to a thin film liquid crystal display such as a flexible liquid crystal display.
  • the present invention also provides a method for manufacturing a liquid crystal panel upper panel integrated touch sensor.
  • FIG. 5 and 6 are schematic process diagrams of a method of manufacturing a liquid crystal panel upper panel integrated touch sensor according to an embodiment of the present invention, which will be described in detail with reference to the accompanying drawings.
  • a photoalignable separator 10 is formed on a carrier substrate 60.
  • the carrier substrate 60 may be used without particular limitation as long as it provides a suitable strength so that it can be fixed without being easily bent or twisted during the process and has little effect on heat or chemical treatment.
  • glass, quartz, silicon wafers, sus etc. may be used, preferably glass may be used.
  • the photo-alignment separator 10 may be formed by applying the above-described composition for forming a photo-alignment membrane on the carrier substrate 60 and orienting by photocuring.
  • the coating method is not particularly limited, and for example, slit coating method, knife coating method, spin coating method, casting method, micro gravure coating method, gravure coating method, bar coating method, roll coating method, wire bar coating method, dip coating method
  • a method known in the art such as a method of coating, spray coating, screen printing, gravure printing, flexographic printing, offset printing, inkjet coating, dispenser printing, nozzle coating, capillary coating, etc. have.
  • the composition for photo-alignment separation membrane formation contains the polymer containing a cinnamate group as an aligning agent, it is preferable that the whole process temperature of the manufacturing method of the liquid crystal panel upper panel integrated touch sensor of this invention is 240 degrees C or less. When the process temperature exceeds 240 ° C., the photo-alignment separator 10 may not be easily peeled from the carrier substrate 60 by a chemical reaction between the photo-alignment separator 10 and the carrier substrate 60.
  • the composition for forming the photo-orientation separator includes a polyimide polymer as an alignment agent
  • a silane coupling agent is first applied on the carrier substrate 60 to remove the hydrophilic functional groups on the surface of the carrier substrate 60, and then the composition for forming the photo-orientation separator. Coating is preferable in view of enhancing adhesion of the alignment film, planarization and surface tension control.
  • the silane coupling agent may be applied by diluting with an alcohol solvent.
  • the whole process temperature of the manufacturing method of the liquid crystal panel upper panel integrated touch sensor of this invention is 240 degrees C or less.
  • the process temperature exceeds 240 ° C., yellowing of the photoalignable separator 10 may occur.
  • Photo-alignment may occur by photocuring.
  • alignment may be performed by irradiating polarized ultraviolet rays in a wavelength range of about 150 to 450 nm.
  • the intensity of the exposure may be about 50 mJ / cm 2 to 10 J / cm 2, preferably about 500 mJ / cm 2 to 5 J / cm 2.
  • a polarizing device using a substrate coated with a dielectric anisotropic substance on a transparent substrate surface, such as quartz glass, soda lime glass, or soda lime free glass, 2 a polarizing plate on which fine aluminum or metal wires are deposited, or 3 quartz
  • the polarized ultraviolet light selected from the polarized ultraviolet light may be applied by passing or reflecting through the Brewster polarizer by the reflection of the glass.
  • liquid crystal driving electrode 20 is formed on the photoalignment separation layer 10 as shown in FIG. 5 (b).
  • the liquid crystal driving electrode 20 may be formed of the metal oxide material described above.
  • the method of forming the liquid crystal drive electrode 20 is not particularly limited, and physical vapor deposition, chemical vapor deposition, plasma deposition, plasma polymerization, thermal deposition, thermal oxidation, anodic oxidation, cluster ion beam deposition, screen printing, gravure printing, and pla It may be by a method known in the art, such as a flexographic printing method, an offset printing method, an inkjet coating method, a dispenser printing method.
  • the transparent electrode laminate 30 is formed on the liquid crystal drive electrode 20.
  • the transparent electrode stack 30 includes a sensing electrode for touch sensing, and specifically, may include a sensing electrode and a protective layer disposed on the sensing electrode.
  • the sensing electrode may be formed of a material such as metal oxides, metals, metal nanowires, carbon-based materials, conductive polymer materials, and the like.
  • the formation method of a sensing electrode is not specifically limited, For example, it can form by the same method as the liquid crystal drive electrode 20 mentioned above.
  • the protective film serves to protect the sensing electrode, and the protective film may be formed of, for example, an organic or inorganic insulating material, but is not limited thereto.
  • the method of forming the protective film is not particularly limited, and for example, the slit coating method, the knife coating method, the spin coating method, the casting method, the micro gravure coating method, the gravure coating method, the bar coating method, the roll coating method, the wire bar coating method,
  • methods known in the art such as dip coating, spray coating, screen printing, gravure printing, flexographic printing, offset printing, inkjet coating, dispenser printing, nozzle coating, capillary coating can do.
  • the sensing electrode may be formed of two layers, and may include a second insulating film therebetween.
  • an organic or inorganic insulating material known in the art may be used without limitation.
  • the formation method of a 2nd insulating film is not specifically limited, For example, it can be formed by the method similar to the above-mentioned protective film.
  • the first insulating film 40 is formed on the liquid crystal driving electrode 20 before the transparent electrode stack 30 is formed. It may further comprise the step.
  • 5 and 6 illustrate a case in which the first insulating film 40 is formed before the transparent electrode laminate 30 is formed, but is not limited thereto.
  • the first insulating film 40 may be formed of the same material as the above-described second insulating film, and the forming method is not particularly limited, and may be formed by the same method as the above-described second insulating film.
  • the photoalignable separator 10 is separated from the carrier substrate 60.
  • the optical orientation membrane 10 By separating the optical orientation membrane 10 from the carrier substrate 60, the optical orientation membrane 10; A liquid crystal driving electrode 20 disposed on the photoalignable separator 10; And a transparent electrode stack 30 disposed on the liquid crystal driving electrode 20.
  • the photo-orientation separation membrane 10 is preferably in terms of a peeling force of 1 N / 25 mm or less on the carrier substrate 60 in terms of preventing the touch sensor from being torn or cracked during peeling.
  • the manufacturing method of the liquid crystal panel upper panel integrated touch sensor of the present invention may further include attaching the polarizing plate 50 to the transparent electrode laminate 30 as illustrated in FIG. 6E. have.
  • Attachment of the polarizer 50 may be performed after the separation of the photoalignable separator 10, or may be performed before the separation.
  • FIG. 6 illustrates a case in which the polarizer 50 is attached before the optical orientation membrane 10 is separated from the carrier substrate 60, but is not limited thereto.
  • the polarizer 50 includes a polarizer and a protective film attached to at least one surface thereof, and the aforementioned materials may be used as the polarizer and the protective film.
  • the polarizing plate 50 may be attached onto the transparent electrode stack 30 through an adhesive or an adhesive.
  • an adhesive or an adhesive.
  • the pressure-sensitive adhesive and the adhesive water-based or UV pressure-sensitive adhesives, adhesives known in the art can be used without limitation.
  • alignment film 200 liquid crystal drive electrode
  • top plate 400 pressure-sensitive adhesive

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Human Computer Interaction (AREA)
  • Inorganic Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Position Input By Displaying (AREA)

Abstract

La présente invention concerne un capteur tactile intégré dans une plaque supérieure d'un panneau à cristaux liquides et, plus particulièrement, un capteur tactile intégré dans une plaque supérieure d'un panneau à cristaux liquides comprenant : un film de séparation photo-alignable ; une électrode de commande de cristaux liquides placée sur le film de séparation photo-alignable ; et un stratifié d'électrode transparente placé sur l'électrode de commande de cristaux liquides. En conséquence, le capteur tactile de la présente invention n'a pas besoin d'un substrat supérieur de panneau à cristaux liquides séparé. Comme son épaisseur est considérablement réduite, un film ultra-mince peut être réalisé, ou le capteur tactile peut être utilement appliqué à un panneau d'écran tactile souple.
PCT/KR2015/010941 2014-11-28 2015-10-16 Capteur tactile intégré dans la plaque supérieure d'un panneau d'affichage à cristaux liquides WO2016085120A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2014-0168774 2014-11-28
KR1020140168774A KR20160064747A (ko) 2014-11-28 2014-11-28 액정 표시 패널 상판 일체형 터치 센서

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WO2016085120A2 true WO2016085120A2 (fr) 2016-06-02
WO2016085120A3 WO2016085120A3 (fr) 2016-07-14

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KR20040017139A (ko) 2002-08-20 2004-02-26 삼성전자주식회사 터치 패널 일체형 화상 표시 장치 및 이의 제조방법
JP2011257655A (ja) * 2010-06-10 2011-12-22 Dainippon Printing Co Ltd 静電容量式タッチパネルセンサ付き液晶表示装置
JP5845911B2 (ja) * 2012-01-13 2016-01-20 宇部興産株式会社 ポリイミド前駆体水溶液組成物、及びポリイミド前駆体水溶液組成物の製造方法
US9871228B2 (en) * 2012-11-30 2018-01-16 Lg Display Co., Ltd. Organic light emitting device comprising flexible substrate and method for preparing thereof
KR101775198B1 (ko) * 2013-04-09 2017-09-06 주식회사 엘지화학 적층체 및 이를 이용하여 제조된 기판을 포함하는 소자
KR102073879B1 (ko) * 2013-05-03 2020-02-05 동우 화인켐 주식회사 터치 스크린 패널의 제조 방법

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TW201629726A (zh) 2016-08-16
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