WO2016206022A1 - 触控装置及触控装置的制备方法 - Google Patents

触控装置及触控装置的制备方法 Download PDF

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Publication number
WO2016206022A1
WO2016206022A1 PCT/CN2015/082240 CN2015082240W WO2016206022A1 WO 2016206022 A1 WO2016206022 A1 WO 2016206022A1 CN 2015082240 W CN2015082240 W CN 2015082240W WO 2016206022 A1 WO2016206022 A1 WO 2016206022A1
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Prior art keywords
layer
touch
substrate
electrodes
polarizing
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Ceased
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PCT/CN2015/082240
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English (en)
French (fr)
Inventor
张家奇
刘自鸿
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Shenzhen Royole Technologies Co Ltd
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Shenzhen Royole Technologies Co Ltd
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Priority to CN201580000934.8A priority Critical patent/CN105518520A/zh
Priority to PCT/CN2015/082240 priority patent/WO2016206022A1/zh
Publication of WO2016206022A1 publication Critical patent/WO2016206022A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G02F1/13338—Input devices, e.g. touch panels
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40—OLEDs integrated with touch screens
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G02F1/133541—Circular polarisers

Definitions

  • the present invention relates to the field of touch control, and more particularly to a touch device having a polarizing function and a method for preparing the touch device.
  • the touch panel provides a new human-computer interaction interface, which is more direct and more user-friendly in use.
  • the touch screen and the flat display panel are integrated to form a touch display device, which can enable the flat display device to have a touch function, and can perform input through a finger, a stylus, etc., and the operation is more intuitive and simple.
  • the display device generally has a polarizer, and the polarizer is placed in the light emitting direction of the display panel.
  • the polarizer comprises a multi-layer structure, for example, comprising a polarizing layer, a plurality of film layers having support and protection functions on both sides of the polarizing layer, such as protection of the support layer and the outer side of the support layer respectively disposed on both sides of the polarizing layer Floor.
  • a polarizer has a complicated structure and high cost.
  • the touch display device is provided with a polarizer, the overall thickness of the touch display device is still not satisfactory, which is disadvantageous for preparing an ultra-thin display.
  • Chinese Patent Application No. CN201510011194.X discloses a touch polarizer and a touch display device.
  • the touch display device includes a liquid crystal panel and the touch polarizer, and the touch polarizer is disposed on the liquid crystal panel.
  • the touch polarizer includes a first substrate, a transparent electrode layer, a grating electrode layer, and a touch circuit.
  • the light transmissive electrode layer is disposed on the first substrate.
  • the grating electrode layer is disposed on one side of the light transmissive electrode layer, and the grating electrode layer includes a plurality of metal wires arranged in parallel with each other to form a grating.
  • the touch circuit is respectively connected to the transparent electrode layer and the metal wire, and generates a touch signal according to the feedback of the transparent electrode layer and the grating electrode layer.
  • the grating electrode layer functions as a polarizing light.
  • the material of the grating electrode layer is a metal material, which is different from the conventional polarizing material, when the touch polarizing plate is manufactured, the existing polarizing plate cannot be used.
  • the polarizer manufacturing equipment is manufactured.
  • the present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention needs to provide a touch device having a polarizing function and a method for preparing the touch device.
  • a touch device includes a first substrate, a first touch layer, a polarizing layer, a second touch layer, and a second substrate.
  • the first touch layer and the second touch layer are respectively attached to the polarizing layer.
  • the first substrate is disposed on the first touch layer, and the second substrate is disposed on the second touch layer.
  • the material of the polarizing layer is a polymer material.
  • the touch device combines the polarizing function and the touch function, thereby reducing the support of the polarizer and the use of the protective layer, and is advantageous for preparing an ultra-thin display and saving cost.
  • the material of the polarizing layer is a polymer material, it is also advantageous to manufacture using an existing polarizing plate manufacturing apparatus.
  • a method for preparing a touch device includes the following steps:
  • FIG. 1 is a schematic structural view of a touch device according to a preferred embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a polarizing layer according to a preferred embodiment of the present invention.
  • FIG. 3 is a schematic view showing a pattern of a touch layer of a touch device according to a preferred embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a touch device according to another preferred embodiment of the present invention.
  • FIG. 5 is a schematic flow chart of a method for fabricating a touch device according to a preferred embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a process of a method for fabricating a touch device according to a preferred embodiment of the present invention.
  • FIG. 7 is a schematic flow chart of a method for fabricating a touch device according to another preferred embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a process of a method of fabricating a touch device according to another preferred embodiment of the present invention.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include one or more of the described features either explicitly or implicitly.
  • the meaning of "a plurality" is two or more unless specifically and specifically defined otherwise.
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; may be mechanically connected, or may be electrically connected or may communicate with each other; may be directly connected or indirectly connected through an intermediate medium, may be internal communication of two elements or interaction of two elements relationship. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the touch device 100 of the first preferred embodiment of the present invention includes a first substrate 102 , a first touch layer 104 , a polarizing layer 106 , a second touch layer 108 , and a second substrate 110 .
  • the touch device 100 can be attached to the display panel.
  • the display panel can be a liquid crystal display (LCD) or an organic light emitting diode panel (OLED panel).
  • the polarizing layer 106 is a circular polarizer.
  • the polarizing layer 106 includes a linear polarizing film 162 and an optical retardation film 164 on the linear polarizing film 162.
  • the optical retardation film 164 is disposed. On the surface of the linear polarizing film 162 on the light incident side.
  • the optical retardation film 164 includes a ⁇ /4 polarizing film to reduce external light interference and improve display contrast.
  • the first substrate 102 and the second substrate 110 are flexible substrates, and the material thereof may be polyethylene terephthalate (PET) or polyethylene naphthalate (PEN). ) and other materials.
  • PET polyethylene terephthalate
  • PEN polyethylene naphthalate
  • the first touch layer 104 and the second touch layer 108 are respectively disposed on the opposite surfaces of the polarizing layer 106.
  • the first substrate 102 is disposed on the first touch layer 104
  • the second substrate 110 is disposed on the first touch layer 104.
  • the second touch layer 108 is disposed on the second touch layer 108.
  • the material of the polarizing layer 106 is a polymer material.
  • the material of the polarizing layer 106 is polyvinyl alcohol (PVA).
  • PVA polyvinyl alcohol
  • the polyvinyl alcohol has good alignment, high mechanical strength, easy extension, high transmittance, and chargeability. Low and good dyeability.
  • the polyvinyl alcohol has a dielectric constant of about 2.0.
  • the polyvinyl alcohol is located between the first touch layer 104 and the second touch layer 108, and functions as a polarizing layer. The role of the layer. Understandably, in other In the embodiment, the material of the polarizing layer 106 may be other polymer materials suitable as a polarizing material.
  • the first touch layer 104 and the second touch layer 108 are attached to opposite surfaces of the polarizing layer 106 by a roll-to-roll process.
  • the first touch layer 104 may be formed on the first substrate 102
  • the second touch layer 108 may be formed on the second substrate 110. Then, the roll in the roll-to-roll process will have the first touch.
  • the first substrate 102 of the control layer 104 is pressed together with the second substrate 110 with the second touch layer 108 on the opposite surfaces of the polarizing layer 106, so that the first touch layer 104 and the second touch layer 108 are They are respectively attached to the opposite surfaces of the polarizing layer 106.
  • the polarizing layer 106 may be subjected to processes such as stretching, compounding, dyeing, drying, etc., so that the polarizing layer 106 meets the requirements.
  • the first touch layer 104 includes a plurality of first electrode columns 112 arranged side by side, the first electrode array 112 includes a plurality of first electrodes 114 and two adjacent first electrodes.
  • the first connection line 116 of the electrode 114, the plurality of first electrodes 114 of the first electrode column 112 are arranged along the first direction Y.
  • the first touch layer 104 may be formed on the first substrate 102 by a printing process such as a screen printing process. Before the printing, the pattern of the first touch layer 104 can be designed such that the printed first touch layer 104 has a pre-designed pattern.
  • the material of the first electrode 114 may be a material such as graphene or nano silver wire, and the material of the first connection line 116 may be a material such as conductive silver paste. After the printing is completed, the first electrode 114 and the first connecting line 116 are dried to form the first touch layer 104.
  • the second touch layer 108 includes a plurality of second electrode columns 118 arranged side by side.
  • the second electrode array 118 includes a plurality of second electrodes 120 and a second connection line 122 connecting adjacent two second electrodes 120.
  • the plurality of second electrodes 120 in the second electrode column 118 are arranged in the second direction X.
  • the first direction Y is different from the second direction X.
  • the first direction Y is perpendicular to the second direction X.
  • the second touch layer 108 may be formed on the second substrate 110 by a printing process such as a screen printing process. Before the printing, the pattern of the second touch layer 108 can be designed such that the printed second touch layer 108 has a pre-designed pattern.
  • the material of the second electrode 120 may be a material such as graphene or nano silver wire, and the material of the second connection line 122 may be a material such as conductive silver paste. After the printing is completed, the second electrode 120 and the second connecting line 122 are dried to form a second touch layer 108.
  • the pattern of the first touch layer 104 and the pattern of the second touch layer 108 shown in FIG. 3 are displayed as a planar pattern based on convenient understanding.
  • the first touch layer 104 and the second touch layer 108 are located in different layers, so that the first connection line 116 and the second connection line 122 in FIG. 3 are distributed in different layers, and no contact is formed between the first connection line 116 and the second connection line 122. .
  • the pattern of the first touch layer 104 and the pattern of the second touch layer 108 can also be designed to constitute other patterns that satisfy the touch function.
  • the pattern of the first touch layer 104 and the second touch layer 108 The pattern can be designed to resemble a pattern formed by a protective film (TAC film) for etching a polarizer during the preparation of the polarizer, so that the first touch layer 104 and the second touch layer 108 can be increased in surface area.
  • TAC film protective film
  • the material of the first electrode 114 is the same as the material of the second electrode 120, and the material of the first connection line 116 is the same as the material of the second connection line 122.
  • the first touch layer 104 may be formed on the first substrate 102 and the second touch layer 108 may be formed on the second substrate 110 using the same printing process.
  • the touch device 100 combines the polarizing function and the touch function to reduce the use of the protective layer and the support layer of the polarizer, and is advantageous for preparing an ultra-thin display and saving cost.
  • the material of the polarizing layer 106 is a polymer material, it is also advantageous to manufacture using an existing polarizer manufacturing apparatus.
  • a second preferred embodiment of the present invention provides a touch device 200 .
  • the structure of the touch device 200 of the present embodiment is substantially the same as that of the touch device 100 of the first preferred embodiment. The difference is that the touch device 200 of the present embodiment includes the first waterproof layer 202 and the second waterproof layer. Layer 204.
  • the first waterproof layer 202 is connected to the first touch layer 206 and the first substrate 208
  • the second waterproof layer 204 is connected to the second touch layer 210 and the second substrate 212 .
  • the first waterproof layer 202 and the second waterproof layer 204 prevent gas and moisture from penetrating into the first touch layer 206 and the second touch layer 210 from the outside.
  • the material of the first waterproof layer 202 and the material of the second waterproof layer 204 may be made of a material such as silicon dioxide (SiO 2 ) or aluminum oxide (Al 2 O 3 ), and may be formed on the first substrate 208.
  • a first waterproof layer 202 is deposited on the first substrate 208, and then the first touch layer 206 is formed on the first waterproof layer 202.
  • the second waterproof layer is also formed similarly.
  • the specific structure and materials of the first touch layer 206, the first substrate 208, the second touch layer 210, the second substrate 212, and the polarizing layer 214 can be referred to the touch device 100 of the first preferred embodiment.
  • the beneficial effects of the touch device 200 of the present embodiment are the same as those of the touch device 100 of the first preferred embodiment. Further, the first waterproof layer 202 and the second waterproof layer 204 are added. The touch device 200 is provided with a waterproof function. The service life of the touch device 200 is effectively extended.
  • a third preferred embodiment of the present invention provides a method for fabricating a touch device.
  • the method of manufacturing the touch device can be used to prepare the touch device 100 of the first preferred embodiment.
  • the preparation method comprises the following steps:
  • the first substrate 102 with the first touch layer 104 and the second substrate 110 with the second touch layer 108 are pressed onto the opposite surfaces of the polarizing layer 106 by rollers.
  • the first touch layer 104 and the second touch layer 108 are attached to the two surfaces opposite to the polarizing layer 106.
  • the material of the polarizing layer 106 is a high score. Sub-material.
  • the step S1 includes: forming a plurality of first electrodes 114 and a first connection line 116 connecting the adjacent two first electrodes 114 on the first substrate 102 by a printing process, and then drying the plurality of first electrodes 114 and the plurality of The first connecting line 116 , the plurality of first electrodes 114 , and the plurality of first connecting lines 116 form the first touch layer 104 .
  • the printing process can employ a screen printing process.
  • the first substrate 102 can be a flexible substrate, and the material thereof can be polyethylene terephthalate (PET) or polyethylene naphthalate (PEN).
  • PET polyethylene terephthalate
  • PEN polyethylene naphthalate
  • the first substrate 102 may be wound on the first roller 300.
  • one end of the first substrate 102 is pulled out from the first roller 300 and laid on the first transmission roller 302, and finally passed through the pressing roller.
  • the gap between the pairs 304 is wound on the winding roller 306.
  • the first roller 300 and the first drive roller 302 support the first substrate 102 to form a substrate platform for fabricating the first touch layer 104.
  • first electrodes 114 and a plurality of first connection lines 116 are printed on the first substrate 102 by a screen printing process.
  • the material of the first electrode 114 may be a material such as graphene or nano silver wire, and the first connecting wire 116 may be made of a material such as conductive silver paste.
  • the pattern formed by the first electrode 114 and the plurality of first connecting lines 116 can be pre-designed and implemented by a printing process.
  • the plurality of first electrodes 114 and the plurality of first connecting lines 116 may be dried by hot air and/or infrared heating to form the first touch layer 104.
  • the purpose of the drying is to enable the first touch layer 104 to be formed to prevent the subsequent pressing from adversely affecting the shape of the first touch layer 104.
  • Step S2 includes: forming a plurality of second electrodes 120 and a second connection line 122 connecting adjacent two second electrodes 120 on the second substrate 110 by a printing process, and then drying the plurality of second electrodes 120 and The second connecting line 122 , the plurality of second electrodes 120 , and the plurality of second connecting lines 122 form the second touch layer 108 .
  • the printing process can employ a screen printing process.
  • the second substrate 110 can be a flexible substrate, and the material thereof can be polyethylene terephthalate (PET) or polyethylene naphthalate (PEN). More preferably, the second substrate 110 is made of the same material as the first substrate 102, which can reduce the production cost.
  • the second substrate 110 can be wound on the second roller 308. In use, one end of the second substrate 110 is pulled out from the second roller 308 and laid on the second transmission roller 310, and finally passed through the pressing roller pair 304. The gap between them is wound around the winding roller 306. As such, the second roller 308 and the second drive roller 310 support the second substrate 110 to form a substrate platform for manufacturing the second touch layer 108.
  • a plurality of second electrodes 120 and a plurality of second connection lines 122 are printed on the second substrate 110 by a screen printing process.
  • the material of the second electrode 120 may be a material such as graphene or nano silver wire, and the second connecting wire 122 may be made of a material such as conductive silver paste.
  • the pattern formed by the second electrode 120 and the plurality of second connecting lines 122 can be pre-designed and realized by a printing process.
  • the plurality of second electrodes 120 and the plurality of second connecting lines 122 may be dried by hot air and/or infrared heating to form the second touch layer 108.
  • the purpose of drying is to enable the second touch layer 108 to be formed to prevent the subsequent pressing from adversely affecting the shape of the second touch layer 108.
  • Step S3 includes stretching, compounding, dyeing, and drying the polarizing layer 106 before pressing.
  • the material of the polarizing layer 106 is polyvinyl alcohol (PVA).
  • PVA polyvinyl alcohol
  • the polarizing layer 106 is wound around the third roller 312.
  • one end of the polarizing layer 106 is pulled out from the third roller 312 and wound around the gap between the pair of pressing roller wheels 304.
  • the third roller 312 and the pinch roller pair 304 support the polarizing layer 106.
  • the polarizing layer 106 is subjected to stretching, compounding, dyeing, drying, and the like in order to make the polarizing layer 106 meet the requirements.
  • the first substrate 102 with the first touch layer 104 and the second substrate 110 with the second touch layer 108 are pressed onto the polarizing layer by the roller 314 of the pressing roller pair 304.
  • the touch device 100 is formed on the opposite surfaces of the 106.
  • the first touch layer 104 and the second touch layer 108 are directly attached to the two surfaces opposite to the polarizing layer 106, and then the winding roller 306 is wound.
  • the attached touch device 100 is wound up.
  • the touch device 100 is unwound from the winding roller 306, and then a work such as cutting is performed. Therefore, the touch device 100 is fabricated using a roll to roll process.
  • the method for preparing the touch device combines a polarizing function and a touch function, which can reduce the support of the polarizer and the use of the protective layer, and is advantageous for preparing an ultra-thin display and saving cost.
  • the material of the polarizing layer is a polymer material, it is also advantageous to manufacture using an existing polarizing plate manufacturing apparatus.
  • step S1 may be performed before step S2, or may be performed later, or preferably, step S1 and step S2 are simultaneously performed. Simultaneous implementation of step S1 and step S2 can save material and time.
  • a fourth preferred embodiment of the present invention provides a method for fabricating a touch device.
  • the method of manufacturing the touch device can be used to prepare the touch device 200 of the second preferred embodiment.
  • the preparation method of the present embodiment is substantially the same as the preparation method of the third preferred embodiment, except that step S1 includes depositing a first waterproof layer 202 on the first substrate 208, and then in the first waterproof layer 202.
  • a first touch layer 206 is formed on the upper surface.
  • the step of depositing the first waterproof layer 202 may be added between the first roller 300 and the first drive roller 302 before printing the first touch layer 206.
  • Step S2 includes depositing a second waterproof layer 204 on the second substrate 212, and then forming a second touch layer 210 on the second waterproof layer 204.
  • the step of depositing the second waterproof layer 204 may be added between the second roller 308 and the second drive roller 310 before the second touch layer 210 is printed.
  • Step S3 includes: passing the first substrate with the first touch layer 206 and the first waterproof layer 202 through a roller 208 and the second substrate 212 with the second touch layer 210 and the second waterproof layer 204 are pressed against the opposite surfaces of the polarizing layer 214 to form the touch device 200.
  • the first touch layer 206 and The second touch layer 210 is attached to the two surfaces opposite to the polarizing layer 214.
  • the material of the first waterproof layer 202 and the material of the second waterproof layer 204 may be made of a material such as silicon dioxide (SiO 2 ) or aluminum oxide (Al 2 O 3 ).
  • the first waterproof layer 202 and the second waterproof layer 204 are made of the same material.
  • the beneficial effects of the method for fabricating the touch device of the present embodiment are the same as those for the method for fabricating the touch device of the third preferred embodiment. Further, since the first waterproof layer 202 and the first layer are added The waterproof layer 204 is such that the touch device 200 prepared by the preparation method of the present embodiment has a waterproof function. The service life of the touch device 200 is effectively extended.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
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  • Polarising Elements (AREA)

Abstract

一种触控装置（100）及制备方法，该触控装置（100）包括第一基板（102）、第一触控层（104）、偏光层（106）、第二触控层（108）及第二基板（110），该第一触控层（104）及该第二触控层（108）分别贴合在该偏光层（106）相背的两表面，该第一基板（102）设置在该第一触控层（104）上，该第二基板（110）设置在该第二触控层（108）上，该偏光层（106）的材料是高分子材料。上述触控装置（100）将偏光功能与触控功能相结合，可减少偏光片的支撑、保护层的使用，利于制备超薄显示器及节省成本。同时，由于偏光层（106）的材料是高分子材料，也利于使用已有的偏光片制造设备进行制造。

Description

触控装置及触控装置的制备方法 技术领域
本发明涉及触摸控制领域，更具体而言，涉及一种具有偏光功能的触控装置及一种触控装置的制备方法。
背景技术
随着便携式电子显示设备的发展，触摸屏(touch panel)提供了一种新的人机互动界面，其在使用上更直接、更人性化。将触摸屏与平面显示面板整合在一起，形成触控显示装置，能够使平面显示装置具有触控功能，可通过手指、触控笔等执行输入，操作更加直观、简便。
另外，显示装置一般具有偏光片，偏光片置于显示面板的出光方向上。目前，偏光片包括多层结构，例如，包括偏光层、位于偏光层两侧的具有支撑、保护作用的多个膜层，如偏光层两侧分别设置有支撑保护层及支撑保护层外侧的保护层。这种偏光片的结构复杂，成本高。
因此，当触控显示装置具备偏光片时，触控显示装置整体厚度尺寸仍不尽理想，不利于制备超薄显示器。
为解决上述问题，中国专利申请第CN201510011194.X号公开了一种触控偏光片及一种触控显示装置。该触控显示装置包括液晶面板及该触控偏光片，该触控偏光片置于该液晶面板上。
该触控偏光片包含第一基板、透光电极层、光栅电极层及触控电路。透光电极层设置于第一基板上。光栅电极层设置于透光电极层的一侧，且光栅电极层包含多条金属导线彼此平行间隔排列以形成光栅。触控电路分别连接透光电极层及金属导线，并根据透光电极层及光栅电极层的反馈产生触控信号。
上述专利申请中，光栅电极层起到偏光的作用，但是，由于该光栅电极层的材料为金属材料，与传统的偏光片材料有差异，因此，制造该触控偏光片时，无法使用已有的偏光片制造设备进行制造。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明需要提供一种具有偏光功能的触控装置及一种触控装置的制备方法。
一种触控装置，包括第一基板、第一触控层、偏光层、第二触控层及第二基板，该第一触控层及该第二触控层分别贴合在该偏光层相背的两表面，该第一基板设置在该第一触控层上，该第二基板设置在该第二触控层上，该偏光层的材料是高分子材料。
上述触控装置将偏光功能与触控功能相结合，可减少偏光片的支撑、保护层的使用，利于制备超薄显示器及节省成本。同时，由于偏光层的材料是高分子材料，也利于使用已有的偏光片制造设备进行制造。
一种触控装置的制备方法，包括以下步骤：
S1：在第一基板上形成第一触控层；
S2：在第二基板上形成第二触控层；
S3：通过辊轮将带有该第一触控层的该第一基板及带有该第二触控层的该第二基板压合在偏光层相背的两表面上形成触控装置，该第一触控层与该第二触控层贴合在该偏光层相背的该两表面上，该偏光层的材料是高分子材料。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施方式的描述中将变得明显和容易理解，其中：
图1是本发明较佳实施方式的触控装置的结构示意图；
图2是本发明较佳实施方式的偏光层的结构示意图；
图3是本发明较佳实施方式的触控装置的触控层的图案示意图；
图4是本发明另一较佳实施方式的触控装置的结构示意图；
图5是本发明较佳实施方式的触控装置的制备方法的流程示意图；
图6是本发明较佳实施方式的触控装置的制备方法的过程示意图；
图7是本发明另一较佳实施方式的触控装置的制备方法的流程示意图；及
图8是本发明另一较佳实施方式的触控装置的制备方法的过程示意图。
具体实施方式
下面详细描述本发明的实施方式，所述实施方式的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接或可以相互通信；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
下文的公开提供了许多不同的实施方式或例子用来实现本发明的不同结构。为了简化本发明的公开，下文中对特定例子的部件和设定进行描述。当然，它们仅仅为示例，并且目的不在于限制本发明。此外，本发明可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设定之间的关系。此外，本发明提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
请参阅图1，本发明第一较佳实施方式的触控装置100包括第一基板102、第一触控层104、偏光层106、第二触控层108及第二基板110。该触控装置100可贴合于显示面板上，显示面板可为液晶显示面板(liquid crystal display，LCD)，也可以为有机发光二极管显示面板(organic light emitting diode panel，OLED panel)。当采用OLED时，偏光层106为圆偏光片，作为一种示例，请结合图2，偏光层106包括线性偏光膜162及位于线性偏光膜162上的光学延迟膜164，该光学延迟膜164设置在线性偏光膜162入光侧的表面上。该光学延迟膜164包括λ/4偏光膜，从而减少外部光的干扰，提高显示对比度。
较佳地，第一基板102及第二基板110为柔性基板，其材料可为聚对苯二甲酸乙二醇酯(polyethylene terephthalate，PET)或聚萘二甲酸乙二醇酯(polyethylene naphthalate，PEN)等材料。
该第一触控层104及该第二触控层108分别贴合在该偏光层106相背的两表面，该第一基板102设置在该第一触控层104上，该第二基板110设置在该第二触控层108上。
该偏光层106的材料是高分子材料，较佳地，偏光层106的材料是聚乙烯醇(PVA)，聚乙烯醇具有配向性好、高机械强度、易延伸、高透过率、带电性低及良好的染色性等优点。其中，聚乙烯醇的介电常数约为2.0，在本实施方式中，聚乙烯醇位于第一触控层104及第二触控层108之间，在作为偏光层的同时，也发挥介电层的作用。可以理解，在其它 实施方式中，偏光层106的材料可采用其它适合作为偏光材料的高分子材料。
较佳地，该第一触控层104及该第二触控层108通过卷对卷制程贴合在该偏光层106相背的两表面。例如，可先在第一基板102上形成第一触控层104，及在第二基板110上形成第二触控层108，然后，利用卷对卷制程中的辊轮将带有第一触控层104的第一基板102与带有第二触控层108的第二基板110一同压合在偏光层106相背的两表面上，使第一触控层104与第二触控层108分别贴合在偏光层106相背的两表面上。
另外，在压合前，可对偏光层106进行拉伸、复合、染色、干燥等工艺，使偏光层106符合要求。
请结合图3，本实施方式中，该第一触控层104包括并排设置的多个第一电极列112，该第一电极列112包括多个第一电极114及连接相邻两个第一电极114的第一连接线116，该第一电极列112中的该多个第一电极114沿第一方向Y排列。
可通过印刷工艺，如丝网印刷工艺在该第一基板102上形成第一触控层104。在印刷前，可对第一触控层104的图案进行设计，使得印刷后的第一触控层104具备预先设计的图案。第一电极114的材料可采用石墨烯或纳米银线等材料，第一连接线116的材料可采用导电银浆等材料。印刷完成后，对第一电极114及第一连接线116进行干燥，进而形成第一触控层104。
该第二触控层108包括并排设置的多个第二电极列118，该第二电极列118包括多个第二电极120及连接相邻两个第二电极120的第二连接线122，该第二电极列118中的该多个第二电极120沿第二方向X排列。该第一方向Y不同于该第二方向X，较佳地，第一方向Y垂直于第二方向X。
可通过印刷工艺，如丝网印刷工艺在该第二基板110上形成第二触控层108。在印刷前，可对第二触控层108的图案进行设计，使得印刷后的第二触控层108具备预先设计的图案。第二电极120的材料可采用石墨烯或纳米银线等材料，第二连接线122的材料可采用导电银浆等材料。印刷完成后，对第二电极120及第二连接线122进行干燥，进而形成第二触控层108。
需要指出的是，图3所示的第一触控层104的图案及第二触控层108的图案是基于方便理解而显示为平面图案，实际上，本实施方式中，第一触控层104及第二触控层108位于不同层，所以图3中第一连接线116与第二连接线122是分布在不同层，第一连接线116与第二连接线122之间不会形成接触。
可以理解，在其它实施方式中，第一触控层104的图案与第二触控层108的图案也可设计为构成其它满足触控功能的图案。例如第一触控层104的图案及第二触控层108的图 案可设计为类似偏光片制备过程中刻蚀偏光片的支撑保护膜(TAC膜)所形成的图案，如此，即可使第一触控层104及第二触控层108发挥了增大表面积的作用，同时也起到固定聚乙烯醇的所用。
进一步地，为了便于触控装置100的生产及成本的降低，第一电极114的材料与第二电极120的材料相同，第一连接线116的材料与第二连接线122的材料相同。也可使用相同的印刷工艺在第一基板102上形成第一触控层104及在第二基板110上形成第二触控层108等。
综上所述，上述触控装置100将偏光功能与触控功能相结合，可减少偏光片的保护层和支撑层的使用，利于制备超薄显示器及节省成本。同时，由于偏光层106的材料是高分子材料，也利于使用已有的偏光片制造设备进行制造。
请参图4，本发明第二较佳实施方式提供一种触控装置200。本实施方式的触控装置200结构与第一较佳实施方式的触控装置100的结构基本相同，其不同之处在于，本实施方式的触控装置200包括第一防水层202及第二防水层204。
该第一防水层202连接第一触控层206及第一基板208，该第二防水层204连接第二触控层210及第二基板212。第一防水层202及第二防水层204可防止气体、湿气从外界渗入第一触控层206及第二触控层210。
具体地，第一防水层202的材料及第二防水层204的材料可采用二氧化硅(SiO2)、三氧化二铝(Al2O3)等材料，可在第一基板208上形成第一触控层206前，在第一基板208上沉积第一防水层202，然后在第一防水层202上形成该第一触控层206。第二防水层也类似形成。第一触控层206、第一基板208、第二触控层210、第二基板212及偏光层214的具体结构及材料等可参第一较佳实施方式的触控装置100。
综上所述，本实施方式的触控装置200的有益效果与第一较佳实施方式的触控装置100的有益效果相同，进一步地，由于加入了第一防水层202及第二防水层204，使得触控装置200具备防水功能。有效延长了触控装置200的使用寿命。
请参图5及图6，本发明第三较佳实施方式提供一种触控装置的制备方法。该触控装置的制备方法可用于制备第一较佳实施方式的触控装置100。该制备方法包括以下步骤：
S1：在第一基板102上形成第一触控层104；
S2：在第二基板110上形成第二触控层108；
S3：通过辊轮将带有该第一触控层104的该第一基板102及带有该第二触控层108的该第二基板110压合在偏光层106相背的两表面上形成触控装置100，该第一触控层104与该第二触控层108贴合在该偏光层106相背的该两表面上，该偏光层106的材料是高分 子材料。
步骤S1包括：在该第一基板102上以印刷工艺形成多个第一电极114及连接相邻两个第一电极114的第一连接线116，之后干燥该多个第一电极114及多个该第一连接线116，该多个第一电极114及多个该第一连接线116形成该第一触控层104。
具体地，印刷工艺可采用丝网印刷工艺。较佳地，第一基板102可为柔性基板，其材料可为聚对苯二甲酸乙二醇酯(polyethylene terephthalate，PET)或聚萘二甲酸乙二醇酯(polyethylene naphthalate，PEN)等材料。例如，第一基板102可缠绕在第一辊轮300上，使用时，将第一基板102的一端从第一辊轮300拉出并铺设在第一传动辊轮302，最后经过压合辊轮对304之间的间隙缠绕在收卷辊轮306上。如此，第一辊轮300与第一传动辊轮302将第一基板102支撑以形成用于制造第一触控层104的基板平台。
之后，利用丝网印刷工艺在第一基板102上印刷多个第一电极114及多个第一连接线116。第一电极114的材料可采用石墨烯或纳米银线等材料，第一连接线116可采用导电银浆等材料。第一电极114及多个第一连接线116所构成的图案可预先设计，并通过印刷工艺实现。
印刷完成后，可利用热风及/或红外加热的方法干燥多个第一电极114及多个第一连接线116，进而形成第一触控层104。干燥的目的是使第一触控层104能够成形，避免后续压合对第一触控层104的形状产生不利影响。
步骤S2包括：在该第二基板110上以印刷工艺形成多个第二电极120及连接相邻两个第二电极120的第二连接线122，之后干燥该多个第二电极120及多个该第二连接线122，该多个第二电极120及多个该第二连接线122形成该第二触控层108。
具体地，印刷工艺可采用丝网印刷工艺。较佳地，第二基板110可为柔性基板，其材料可为聚对苯二甲酸乙二醇酯(polyethylene terephthalate，PET)或聚萘二甲酸乙二醇酯(polyethylene naphthalate，PEN)等材料，更较佳地，第二基板110采用与第一基板102相同的材料，可降低生产成本。第二基板110可缠绕在第二辊轮308上，使用时，将第二基板110的一端从第二辊轮308拉出并铺设在第二传动辊轮310，最后经过压合辊轮对304之间的间隙缠绕在收卷辊轮306上。如此，第二辊轮308与第二传动辊轮310将第二基板110支撑以形成用于制造第二触控层108的基板平台。
之后，利用丝网印刷工艺在第二基板110上印刷多个第二电极120及多个第二连接线122。第二电极120的材料可采用石墨烯或纳米银线等材料，第二连接线122可采用导电银浆等材料。第二电极120及多个第二连接线122所构成的图案可预先设计，并通过印刷工艺实现。
印刷完成后，可利用热风及/或红外加热的方法干燥多个第二电极120及多个第二连接线122，进而形成第二触控层108。干燥的目的是使第二触控层108能够成形，避免后续压合对第二触控层108的形状产生不利影响。
步骤S3包括：在压合前对该偏光层106进行拉伸、复合、染色及干燥。
具体地，在本实施方式中，该偏光层106的材料是聚乙烯醇(PVA)。在压合前，偏光层106缠绕在第三辊轮312上，使用时，将偏光层106的一端从第三辊轮312拉出并经过压合辊轮对304之间的间隙缠绕在收卷辊轮306上。如此，第三辊轮312与压合辊轮对304将偏光层106支撑。对偏光层106进行拉伸、复合、染色、干燥等处理是为了使偏光层106符合要求。
之后，通过压合辊轮对304的辊轮314将带有该第一触控层104的该第一基板102及带有该第二触控层108的该第二基板110压合在偏光层106相背的两表面上形成触控装置100，该第一触控层104与该第二触控层108直接贴合在该偏光层106相背的该两表面上，然后收卷辊轮306将贴合好的触控装置100收卷。后续使用时，将触控装置100从收卷辊轮306放卷，之后进行裁剪等作业。因此，触控装置100利用卷对卷制程(roll to roll)制得。
综上所述，上述触控装置的制备方法将偏光功能与触控功能相结合，可减少偏光片的支撑、保护层的使用，利于制备超薄显示器及节省成本。同时，由于偏光层的材料是高分子材料，也利于使用已有的偏光片制造设备进行制造。
需要提出的是，上述制备方法中，步骤S1可以在步骤S2之前实施，或之后实施，或较佳地，步骤S1与步骤S2同时实施。步骤S1与步骤S2同时实施可节省材料及时间。
请参图7及图8，本发明第四较佳实施方式提供一种触控装置的制备方法。该触控装置的制备方法可用于制备第二较佳实施方式的触控装置200。本实施方式的制备方法与第三较佳实施方式的制备方法基本相同，其不同之处在于，步骤S1包括：在第一基板208上沉积第一防水层202，之后在该第一防水层202上形成第一触控层206。
具体地，可在印刷第一触控层206前，在第一辊轮300与第一传动辊轮302之间增加沉积第一防水层202的步骤。
步骤S2包括：在第二基板212上沉积第二防水层204，之后在该第二防水层204上形成第二触控层210。
具体地，可在印刷第二触控层210前，在第二辊轮308与第二传动辊轮310之间增加沉积第二防水层204的步骤。
步骤S3包括：通过辊轮将带有该第一触控层206及该第一防水层202的该第一基板 208及带有该第二触控层210及该第二防水层204的该第二基板212压合在偏光层214相背的两表面上形成触控装置200，该第一触控层206与该第二触控层210贴合在该偏光层214相背的该两表面上。
第一防水层202的材料与第二防水层204的材料可采用二氧化硅(SiO2)、三氧化二铝(Al2O3)等材料。较佳地，第一防水层202与第二防水层204采用相同的材料。
综上所述，本实施方式的触控装置的制备方法的有益效果与第三较佳实施方式的触控装置的制备方法的有益效果相同，进一步地，由于加入了第一防水层202及第二防水层204，使得本实施方式的制备方法制备得到的触控装置200具备防水功能。有效延长了触控装置200的使用寿命。
在本说明书的描述中，参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合所述实施方式或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施方式，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施方式进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (13)

  1. 一种触控装置，其特征在于，包括第一基板、第一触控层、偏光层、第二触控层及第二基板，该第一触控层及该第二触控层分别贴合在该偏光层相背的两表面，该第一基板设置在该第一触控层上，该第二基板设置在该第二触控层上，该偏光层的材料是高分子材料。
  2. 如权利要求1所述的触控装置，其特征在于，该触控装置包括第一防水层及第二防水层，该第一防水层连接该第一触控层及该第一基板，该第二防水层连接该第二触控层及该第二基板。
  3. 如权利要求1所述的触控装置，其特征在于，该第一触控层包括并排设置的多个第一电极列，该第一电极列包括多个第一电极及连接相邻两个第一电极的第一连接线，该第一电极列中的该多个第一电极沿第一方向排列；
    该第二触控层包括并排设置的多个第二电极列，该第二电极列包括多个第二电极及连接相邻两个第二电极的第二连接线，该第二电极列中的该多个第二电极沿第二方向排列；
    该第一方向不同于该第二方向。
  4. 如权利要求1所述的触控装置，其特征在于，该偏光层的材料是聚乙烯醇。
  5. 如权利要求1所述的触控装置，其特征在于，该偏光层包括圆偏光片。
  6. 如权利要求1所述的触控装置，其特征在于，该第一触控层及该第二触控层通过卷对卷制程贴合在该偏光层相背的两表面。
  7. 一种触控装置的制备方法，其特征在于，包括以下步骤：
    S1：在第一基板上形成第一触控层；
    S2：在第二基板上形成第二触控层；
    S3：通过辊轮将带有该第一触控层的该第一基板及带有该第二触控层的该第二基板压合在偏光层相背的两表面上形成触控装置，该第一触控层与该第二触控层贴合在该偏光层相背的该两表面上，该偏光层的材料是高分子材料。
  8. 如权利要求7所述的触控装置的制备方法，其特征在于，步骤S1包括：在该第一基板上以印刷工艺形成多个第一电极及连接相邻两个第一电极的第一连接线，之后干燥该多个第一电极及多个该第一连接线，该多个第一电极及多个该第一连接线形成该第一触控层。
  9. 如权利要求7所述的触控装置的制备方法，其特征在于，步骤S2包括：在该第二基板上以印刷工艺形成多个第二电极及连接相邻两个第二电极的第二连接线，之后干燥该多个第二电极及多个该第二连接线，该多个第二电极及多个该第二连接线形成该第二触控层。
  10. 如权利要求7所述的触控装置的制备方法，其特征在于，步骤S3包括：在压合前对该偏光层进行拉伸、复合、染色及干燥。
  11. 如权利要求7所述的触控装置的制备方法，其特征在于，该偏光层的材料是聚乙烯醇。
  12. 如权利要求7所述的触控装置的制备方法，其特征在于，该偏光层包括圆偏光片。
  13. 如权利要求7所述的触控装置的制备方法，其特征在于，步骤S1包括：在该第一基板上沉积第一防水层，之后在该第一防水层上形成该第一触控层；
    步骤S2包括：在该第二基板上沉积第二防水层，之后在该第二防水层上形成该第二触控层；
    步骤S3包括：通过辊轮将带有该第一触控层及该第一防水层的该第一基板及带有该第二触控层及该第二防水层的该第二基板压合在该偏光层相背的两表面上形成触控装置，该第一触控层与该第二触控层贴合在该偏光层相背的该两表面上。
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