WO2016106812A1 - 触摸面板用触摸线路的保护方法 - Google Patents

触摸面板用触摸线路的保护方法 Download PDF

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Publication number
WO2016106812A1
WO2016106812A1 PCT/CN2015/070417 CN2015070417W WO2016106812A1 WO 2016106812 A1 WO2016106812 A1 WO 2016106812A1 CN 2015070417 W CN2015070417 W CN 2015070417W WO 2016106812 A1 WO2016106812 A1 WO 2016106812A1
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WO
WIPO (PCT)
Prior art keywords
touch panel
substrate
touch
metal wire
protecting
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PCT/CN2015/070417
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English (en)
French (fr)
Inventor
宋涛
钟小华
Original Assignee
深圳市华星光电技术有限公司
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Publication of WO2016106812A1 publication Critical patent/WO2016106812A1/zh

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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
    • 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 the field of display touch screen manufacturing, and more particularly to a method for protecting a touch line for a touch panel.
  • touch screens are more and more widely used. From large electronic devices such as personal computers and televisions to display devices of small electronic devices such as mobile phones, tablet computers, and electronic dictionaries, liquid crystal display elements or touch screens are often used.
  • the main technologies of the touch screen can be divided into the following two categories: the first type is an external touch screen, such as OGS (One Glass Solution); the second type is an in-cell touch screen, which includes two technologies.
  • Form: On-cell and In-cell are examples of On-cell and In-cell.
  • On-cell refers to a method of embedding a touch panel function between a color filter substrate and a polarizing plate
  • In-cell refers to a method of embedding a touch panel function into a liquid crystal pixel. Since the On-cell and In-cell technologies are integrated on the display panel, the thinning and weight reduction of the display panel can be realized, which has become a major development trend at present and in the future.
  • the On-cell touch technology is mainly provided with a metal layer on the back surface of a CF (color filter) substrate of a liquid crystal display panel, and the metal layer is generally composed of one layer or two layers for implementing a touch function.
  • an insulating layer is generally disposed in the middle of the two metal layer structures to separate the two.
  • Each metal layer is provided with a plurality of horizontal or vertical metal wires exposed on the surface of the CF substrate, and each metal wire electrically connects the touch region with an external touch control circuit to transmit between the two signal.
  • a plurality of small liquid crystal displays are generally integrated on a large glass substrate. After completing the processes of array, color film, and box-to-group, it is necessary to cut each small by cutting.
  • the display screen is separated from the glass substrate.
  • On-cell and In-cell technologies Since the metal wire is exposed on the outer surface of the CF substrate, and more glass swarf is generated during the process of cutting and separating the display screen from the glass substrate, the glass swarf remains on the glass substrate or the position where the glass substrate passes.
  • the invention provides a method for protecting a touch line for a touch panel, which can avoid the malfunction of the touch panel caused by the damage of the touch line in the touch panel, which not only improves the product yield of the touch panel, but also reduces the touch panel. Production costs.
  • the invention provides a method for protecting a touch line for a touch panel, comprising:
  • the CF substrate coated with the glue material dissolved in water is dried according to a predetermined baking temperature to obtain a protective film to protect the touch line;
  • the CF substrate after the dicing is washed with water to remove the protective film.
  • the glue dissolved in water is a polyvinyl alcohol liquid having a degree of polymerization of 500 to 5000 and an alcoholysis degree of more than 85 mol/L.
  • the polyvinyl alcohol liquid is coated on the back surface of the CF substrate having a metal layer and covers a touch line on the metal layer.
  • coating the glue material dissolved in water on the CF substrate of the touch panel comprises:
  • a polyvinyl alcohol liquid is applied onto the touch line on the metal layer by screen printing on the CF substrate of the touch panel.
  • the protective film is a mesh-shaped film layer covering the touch line on the metal layer, and an area outside the touch line on the metal layer on the CF substrate is not exposed The protective film is covered.
  • coating the glue material dissolved in water on the CF substrate of the touch panel comprises:
  • a polyvinyl alcohol liquid covered on the entire surface is coated on the CF substrate of the touch panel.
  • the protective film is a planar film layer coated on a touch line on the metal layer of the CF substrate, and covers the touch line on the metal layer and the touch line on the metal layer outside the area.
  • the method of coating the entire surface of the polyvinyl alcohol liquid on the CF substrate of the touch panel includes any one of Coater, Inkjet, and APR plate transfer.
  • the thickness of the protective film is 1 ⁇ m or more and 50 ⁇ m or less.
  • the predetermined temperature is less than or equal to 70 °C.
  • the touch line includes a plurality of first metal wire groups and a plurality of second metal wire groups, and the plurality of the first metal wire groups are arranged in parallel with each other at equal intervals, and the plurality of the second metal wire groups are arranged Arranged in parallel with each other at equal intervals, and perpendicular to each of the first metal wire groups, a plurality of first metal wire groups and a plurality of second metal wire groups are arranged to be cross-aligned to form a mesh on the back surface of the CF substrate A grid of touched lines.
  • the touch panel includes an array substrate disposed on one side of the CF substrate, and the array substrate is a thin film transistor array substrate.
  • the touch panel further includes a backlight module, the array substrate is located on the backlight module, and the backlight module, the array substrate, and the CF substrate are sequentially stacked.
  • the CF substrate includes a first surface and a second surface parallel to the first surface, the first surface being a front surface of the CF substrate facing the backlight module, wherein the second surface is The back side of the CF substrate.
  • the touch panel includes a metal layer disposed on the second surface of the CF substrate, the metal layer is composed of two layers of metal wires separated by an insulating layer. open.
  • the touch panel includes a liquid crystal layer, and the liquid crystal layer is located between the array substrate and the first surface of the CF substrate, and the light emitted by the backlight module is irradiated onto the CF substrate through the liquid crystal layer. .
  • the CF substrate coated with the PVA liquid is baked at a predetermined baking temperature to obtain a protective film, including:
  • the CF substrate coated with the PVA liquid is placed in a high pressure gas forming mold for baking and pressure relief The mold was taken out and cooled to obtain a protective film.
  • the first metal wire group and the second metal wire group of the metal layer are coated with a glue dissolved in water, and The glue dissolved in water is dried and dried to form a protective film, and the protective film can cover and protect the touch lines such as the first metal wire group and the second metal wire group. Therefore, after the protective film is formed on the first metal wire group and the second metal wire group of the metal layer, during the process of cutting and separating the liquid crystal display panel from the glass substrate, residual glass chips can be prevented from being scratched or damaged.
  • the touch line of the first metal wire group and the second metal wire group of the metal layer ensures that the touch line area and the external touch control circuit normally transmit signals, thereby not only improving the product yield of the touch panel but also reducing the product yield.
  • the production cost of the touch panel is not only improving the product yield of the touch panel but also reducing the product yield.
  • FIG. 1 is a schematic structural diagram of a touch panel according to an embodiment of the invention.
  • FIG. 2 is a schematic view showing the arrangement of a first metal wire group and a second metal wire group of the metal layer shown in FIG. 1.
  • FIG 3 is a schematic view of a touch panel coated with a protective film according to an embodiment of the invention.
  • FIG. 4 is a schematic view of a touch panel coated with a protective film according to another embodiment of the present invention.
  • FIG. 5 is a flow chart of a method for protecting a touch line for a touch panel according to an embodiment of the invention.
  • 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.
  • the ground connection, or the integral connection may be a mechanical connection; it may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal communication between the two elements.
  • the specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
  • the touch panel of the embodiment of the invention can be applied to any product or component having a display function, such as a mobile phone, a PDA (personal digital assistant), a digital photo frame, an MP3, an MP4, a PAD, a liquid crystal television, and the like.
  • a display function such as a mobile phone, a PDA (personal digital assistant), a digital photo frame, an MP3, an MP4, a PAD, a liquid crystal television, and the like.
  • the touch panel can be an external touch screen, such as an OGS (One Glass Solution) touch panel, or an in-cell touch screen, such as an On-cell touch panel. And In-cell touch panel.
  • OGS One Glass Solution
  • OGS One Glass Solution
  • In-cell touch panel For convenience of description, the present invention is described by taking an On-cell touch panel as an example, but is not limited to this type of touch panel.
  • FIG. 1 is a schematic structural diagram of a touch panel according to an embodiment of the invention.
  • the touch panel 100 includes a backlight module 10 , an array substrate 20 , a CF (color filter) substrate 30 , and a metal layer 50 .
  • the backlight module 10, the array substrate 20, and the CF substrate 30 are sequentially stacked to form a whole, that is, the array substrate 20 is located on the backlight module 10, and the CF substrate is 30 is located on the array substrate 20, and the metal layer 50 is disposed on a side surface of the CF substrate 30 with respect to the array substrate 20.
  • the backlight module 10 is one of the key components of the touch panel 100 for providing sufficient brightness and a uniformly distributed light source, so that the touch panel 100 The image can be displayed normally.
  • the array substrate 20 is a TFT (thin film transistor) array substrate, which is disposed on the backlight module 10.
  • the CF substrate 30 is located on a side of the array substrate 20 opposite to the backlight module 10.
  • the CF substrate 30 is a color-developing optical filter that can accurately select light waves in a pre-passing band range. It also reflects out the light waves of other bands that you do not want to pass.
  • the CF substrate 30 includes a first surface 31 and a second surface 33 parallel to the first surface 31.
  • the first surface 31 is a front surface of the CF substrate 30, which is directly opposite The backlight module 10 is provided.
  • the second surface 33 is the back surface of the CF substrate 30.
  • the metal layer 50 is disposed on a side of the CF substrate 30 opposite to the array substrate 20 .
  • the metal layer 50 is formed of a metal wire disposed on the second surface of the CF substrate 30 .
  • 33 ie, the back side of the CF substrate 30
  • the metal layer 50 includes a plurality of first metal wire groups 51 and a plurality of second metal wire groups 53.
  • FIG. 2 is a schematic diagram showing the arrangement of the first metal wire group and the second metal wire group of the metal layer shown in FIG.
  • the plurality of the first metal wire groups 51 are equidistantly parallel to each other, and the plurality of the second metal wire groups 53 are equidistantly parallel to each other, and the first metal wire group 51
  • the cells are arranged to intersect each other so that a grid-like region is formed on the second surface 33 of the CF substrate 30.
  • a plurality of first metal wire groups 51 and a plurality of second metal wire groups 53 corresponding to the grid-like arrangement on the touch panel 100 are touch circuit regions with a touch function, which are used for user-friendly touch input. operating.
  • Each of the first metal wire group 51 and the second metal wire group 53 includes a plurality of metal wires, and each of the first metal wire groups 51 and each of the second metal wire groups 53 are electrically connected to an external touch control circuit. That is, the touch line region with the touch function is electrically connected to the external touch control circuit (not shown) through the first metal wire group 51 and the second metal wire group 53 to transmit the touch line region.
  • the generated touch signal is transmitted to the touch control circuit, or a control signal sent by the touch control circuit is transmitted to the touch line area, thereby implementing a touch function of the touch panel 100.
  • the metal layer 50 is not limited to being composed of one layer of metal wires, and may also be composed of two layers of metal wires.
  • an insulating layer is disposed between the two metal structures to insulate the two metal layers.
  • the touch panel touch line includes not only a metal wire located in the touch line region but also an electrode located on the touch line region, and may also include metal wiring of the frame region.
  • the touch panel 100 further includes a liquid crystal layer (not shown), and the liquid crystal layer is located between the array substrate 20 and the CF substrate 30. Specifically, the liquid crystal layer is located on the array substrate 20 and the CF substrate. Between the first surface 31 of the 30, the light emitted by the backlight module 10 can be irradiated onto the CF substrate 30 through the liquid crystal layer.
  • FIG. 3 is a schematic diagram of a touch panel coated with a protective film according to an embodiment of the invention. Further, the touch panel 100 further includes a protective film 60 coated on the second surface 33 of the CF substrate 30 having the metal layer 50.
  • the protective film 60 is applied to the first metal wire group 51 and the second metal wire group 53 of the metal layer 50, and has protection to the first metal wire group 51 and the second metal wire group 53.
  • the residual glass frit is prevented from scraping or damaging the first metal wire group 51 and the second metal wire group 53 of the metal layer 50, thereby ensuring the touch line region and
  • the external touch control circuit normally transmits signals, which not only improves the product yield of the touch panel, but also reduces the production cost of the touch panel.
  • the protective film 60 may be made of a rubber material which is rapidly dissolved in water.
  • the protective film 60 may be made of polyvinyl alcohol (Poly Vinyl Alcoho, PVA) and has a polymerization degree of 500. ⁇ 5000, the degree of alcoholysis is greater than 85 mol/L. As shown in FIG.
  • the protective film 60 may be a mesh-shaped film layer coated on the first metal wire group 51 and the second metal wire group 53, and the CF substrate 30 is The areas other than the first metal wire group 51 and the second metal wire group 53 are not covered by the protective film 60, and the shape and size of the mesh-shaped protective film and the first metal wire group 51 and The shapes and sizes of the grids formed by the crosswise arrangement of the second metal wire groups 53 are matched. It can be understood that the thickness of the protective film 60 can be controlled by the amount of the PVA glue applied to achieve a better protection effect. Preferably, the protective film 60 has a thickness of 1 micrometer (um) to 50 um.
  • the mesh-shaped protective film can be produced by a screen printing method.
  • the shape of the protective film 60 is not limited to the mesh shape, and may be other shapes.
  • FIG. 4 is a schematic diagram of a touch panel coated with a protective film according to another embodiment of the present invention.
  • the protective film 60 may be a planar film layer, that is, the protective film 60 is applied to the entire second surface 33 of the CF substrate 30, and covers the first metal wire group 51 and The first a second metal wire group 53 and a region other than the first metal wire group 51 and the second metal wire group 53.
  • the thickness of the protective film 60 can be controlled by the amount of the PVA glue applied to achieve a better protection effect.
  • the protective film 60 has a thickness of 1 um to 50 um.
  • the mesh-shaped protective film can be produced by a Coater, Inkjet, APR plate transfer or the like.
  • FIG. 5 is a flowchart of a method for protecting a touch line for a touch panel according to an embodiment of the invention.
  • the method for protecting a touch panel for a touch panel includes the following steps.
  • Step 210 providing a touch panel 100.
  • the touch panel 100 includes a backlight module 10, an array substrate 20, a CF (color filter) substrate 30, and a metal layer 50.
  • the backlight module 10, the array substrate 20, and the CF substrate 30 are sequentially stacked to form a whole, that is, the array substrate 20 is located on the backlight module 10, and the CF substrate is 30 is located on the array substrate 20, and the metal layer 50 is disposed on a side surface of the CF substrate 30 with respect to the array substrate 20.
  • the backlight module 10 is one of the key components of the touch panel 100 for providing sufficient brightness and a uniformly distributed light source, so that the touch panel 100 can display images normally.
  • the array substrate 20 is a TFT (thin film transistor) array substrate, which is disposed on the backlight module 10.
  • the CF substrate 30 is located on a side of the array substrate 20 opposite to the backlight module 10.
  • the CF substrate 30 is a color-developing optical filter that can accurately select light waves in a pre-passing band range. It also reflects out the light waves of other bands that you do not want to pass.
  • the CF substrate 30 includes a first surface 31 and a second surface 33 parallel to the first surface 31.
  • the first surface 31 is a front surface of the CF substrate 30, which is directly opposite The backlight module 10 is provided.
  • the second surface 33 is the back surface of the CF substrate 30.
  • the metal layer 50 is disposed on one side of the CF substrate 30 relative to the array substrate 20 .
  • the metal layer 50 is formed by a metal wire disposed on the CF.
  • the second surface 33 of the substrate 30 i.e., the back surface of the CF substrate 30
  • the metal layer 50 includes a plurality of first metal wire groups 51 and a plurality of second metal wire groups 53.
  • the plurality of first metal wire groups 51 are parallel to each other (this can be set
  • the first metal wire group 51 is horizontal
  • the plurality of the second metal wire groups 53 are parallel to each other (the second metal wire group 53 may be arranged in a longitudinal direction) and perpendicular to each of the first metal wire groups 51.
  • the plurality of the first metal wire groups 51 are equidistantly parallel to each other, and the plurality of the second metal wire groups 53 are equidistantly parallel to each other, and the first metal wire group 51
  • the cells are arranged to intersect each other so that a grid-like region is formed on the second surface 33 of the CF substrate 30.
  • a plurality of first metal wire groups 51 and a plurality of second metal wire groups 53 corresponding to the grid-like arrangement on the touch panel 100 are touch circuit regions having a touch function, which are used for implementing user touch input. operating.
  • Each of the first metal wire group 51 and the second metal wire group 53 includes a plurality of metal wires, and each of the first metal wire groups 51 and each of the second metal wire groups 53 are electrically connected to an external touch control circuit. That is, the touch line region with the touch function is electrically connected to the external touch control circuit (not shown) through the first metal wire group 51 and the second metal wire group 53 to transmit the touch line region.
  • the generated touch signal is transmitted to the touch control circuit, or a control signal sent by the touch control circuit is transmitted to the touch line area, thereby implementing a touch function of the touch panel 100.
  • the metal layer 50 is not limited to being composed of one layer of metal wires, and may also be composed of two layers of metal wires.
  • an insulating layer is disposed between the two metal structures to insulate the two metal layers.
  • the touch panel touch line includes not only a metal wire located in the touch line region but also an electrode located on the touch line region, and may include a metal wiring of the frame region.
  • the touch panel 100 further includes a liquid crystal layer (not shown), and the liquid crystal layer is located between the array substrate 20 and the CF substrate 30. Specifically, the liquid crystal layer is located on the array substrate 20 and the CF substrate. Between the first surface 31 of the 30, the light emitted by the backlight module 10 can be irradiated onto the CF substrate 30 through the liquid crystal layer.
  • Step 220 coating a glue material dissolved in water on the CF substrate 30 of the touch panel 100.
  • the water-soluble rubber material may be a polyvinyl alcohol (Poly Vinyl Alcoho, PVA) liquid having a degree of polymerization of 500 to 5000 and a degree of alcoholysis of more than 85 mol/L.
  • PVA Poly Vinyl Alcoho
  • the PVA liquid is applied to the CF substrate 30 having the second surface 33 of the metal layer 50 and covering the first metal wire group 51 and the second metal wire group 53 of the metal layer 50, thus The first metal wire group 51 and the second metal wire group 53 have a protective effect.
  • the screen printing method applies a PVA liquid to the first metal wire group 51 and the second metal wire group 53. Specifically, the PVA liquid is applied to the first metal wire group 51 and the second metal wire group 53. On the CF substrate 30, the regions other than the first metal wire group 51 and the second metal wire group 53 are exposed without applying the PVA liquid.
  • the entire surface of the PVA liquid is coated on the CF substrate 30 of the touch panel 100.
  • the PVA liquid is applied to the entire second surface 33 of the CF substrate 30.
  • the manner of coating the entire surface of the PVA liquid on the CF substrate 30 of the touch panel 100 includes, but is not limited to, Coater, Inkjet, APR plate transfer, and the like.
  • step 230 the CF substrate 30 coated with the glue material dissolved in water is dried according to a predetermined baking temperature to obtain a protective film 60 to protect the metal layer 50.
  • the CF substrate 30 coated with the PVA liquid is baked at a predetermined baking temperature, for example, the CF substrate 30 coated with the PVA liquid can be placed in an oven. Vacuum baking and cooling to obtain a protective film 60, or the CF substrate 30 coated with the PVA liquid is placed in a high-pressure gas forming mold for baking, and after releasing the pressure, the mold is taken out and cooled to obtain a protective film. 60.
  • the predetermined temperature is 70 ° C or less.
  • a PVA liquid is applied by screen printing on the CF substrate 30 of the touch panel 100, and dried by a predetermined baking temperature to obtain a protective film 60 as a mesh-shaped film.
  • the protective film 60 covers the first metal wire group 51 and the second metal wire group 53, and the first metal wire group 51 and the second metal wire group on the CF substrate 30 A region other than 53 is exposed without being covered by the protective film 60, and a mesh formed by the shape and size of the protective film 60 of the mesh shape is formed by crossing the first metal wire group 51 and the second metal wire group 53.
  • the shape and size match.
  • the thickness of the protective film 60 can be controlled by the amount of PVA applied to achieve a better protection effect.
  • the protective film 60 has a thickness of 1 ⁇ m to 50 ⁇ m, that is, the protective film 60 has a thickness of 1 ⁇ m or more and 50 ⁇ m or less.
  • the entire surface of the PVA liquid is coated on the CF substrate 30 of the touch panel 100, and is dried according to a predetermined baking temperature to obtain a protective film 60 which is a planar film layer, that is, The protective film 60 is applied to the entire second surface 33 of the CF substrate 30 and covers the first a metal wire group 51 and the second metal wire group 53 and regions other than the first metal wire group 51 and the second metal wire group 53.
  • the thickness of the protective film 60 can be controlled by the amount of PVA applied to achieve a better protective effect.
  • the protective film 60 has a thickness of 1 um to 50 um.
  • each liquid crystal display is separated from a glass substrate by cutting.
  • a plurality of small liquid crystal displays are generally integrated on a large glass substrate. After completing the processes of array, color film, and box-to-group, it is necessary to cut each by cutting. A small liquid crystal display is separated from the glass substrate. Since the protective film 60 is applied to the first metal wire group 51 and the second metal wire group 53 of the metal layer 50, and has protection to the first metal wire group 51 and the second metal wire group 53, During the process of cutting and separating the liquid crystal display from the glass substrate, the residual glass frit is prevented from scraping or damaging the first metal wire group 51 and the second metal wire group 53 of the metal layer 50, thereby ensuring the touch line region. The signal is normally transmitted with the external touch control circuit, which not only improves the product yield of the touch panel, but also reduces the production cost of the touch panel.
  • step 250 the CF substrate 30 after cutting is washed with water to remove the protective film 60.
  • the protective film 60 is made of a PVA glue that can be quickly dissolved in water
  • the first metal wire covering the CF substrate 30 can be covered by water washing.
  • the protective film 60 of the group 51 and the second metal wire group 53 is cleaned.
  • the protective film 60 can be dissolved in water until the protective film 60 is completely removed, and then dried. Just do it.
  • the first metal wire group 51 and the second metal wire group 53 of the metal layer 50 are coated with a glue material dissolved in water, and The glue dissolved in water is dried and dried to form a protective film 60, which covers and protects the touch lines such as the first metal wire group 51 and the second metal wire group 53. Therefore, after the protective film 60 is formed on the first metal wire group 51 and the second metal wire group 53 of the metal layer 50, residual glass shaving can be avoided during the process of cutting and separating the liquid crystal display panel from the glass substrate.

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Abstract

一种触摸面板用触摸线路的保护方法，包括：提供一触摸面板（100）；并在其CF基板（30）上涂覆溶解于水的胶材；将涂覆后的CF基板（30）根据预定的烘烤温度进行干燥处理得到保护膜(60)以保护触摸线路；通过切割从玻璃基板分离每个液晶显示屏；将切割之后的CF基板进行水洗以去除保护膜（60）。可避免切割分离过程中残留的玻璃屑刮断或损坏触摸线路，保证触摸线路区域与外部触摸控制电路正常传输信号，提升触摸面板的产品良率，降低生产成本。

Description

触摸面板用触摸线路的保护方法
本发明要求2014年12月30日递交的发明名称为“触摸面板用触摸线路的保护方法”的申请号为201410849138.9的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及显示触摸屏制造领域，尤其是涉及一种触摸面板用触摸线路的保护方法。
背景技术
在平板显示行业中，触摸屏适用范围越来越广泛，从个人电脑、电视机等大型电子设备到手机、平板电脑、电子词典等小型电子设备的显示装置中大都要使用液晶显示元件或触摸屏。目前，触摸屏的主要技术可以分为以下两类：第一类是外挂式触摸屏，如OGS(One Glass Solution，即单片玻璃解决方案)；第二类是内嵌式触摸屏，其包括两种技术形态：On-cell和In-cell。其中，On-cell是指将触摸面板功能嵌入到彩色滤光片基板和偏光板之间的方法，In-cell是指将触摸面板功能嵌入到液晶像素中的方法。由于On-cell和In-cell技术是在显示面板上一体化实现，可实现显示面板的薄型化和轻量化，成为目前及以后的主要发展趋势。
目前，On-cell触摸技术主要是在液晶显示面板的CF(color filter，即彩色滤光片)基板的背面设置有金属层，该金属层一般由一层或两层构成，用于实现触摸功能。其中，两层金属层结构的中间一般会设置一绝缘层以将二者隔开。每一金属层都设置有多条横向或者纵向的金属线组成，该金属线露出在CF基板的表面，且每条金属线将触摸区域与外部触摸控制电路电性连接以在二者之间传输信号。
在显示屏的制程过程中，一般是先将多个小的液晶显示屏整合在一个大的玻璃基板上，在完成阵列、彩膜、成盒对组等制程之后，需要通过切割将每个小的显示屏从所述玻璃基板上分离出来。然而，在On-cell和In-cell技术中， 由于金属线是露出在所述CF基板的外表面，而且在将显示屏从玻璃基板切割分离过程中会产生较多的玻璃屑，因此，玻璃屑残留在玻璃基板上或玻璃基板经过的位置，很容易造成所述金属线刮伤或者断开或者发生短路，导致触摸区域与外部触摸控制电路之间无法传输信号，从而造成显示屏上对应区域的触摸功能失灵，如此，不但降低了产品良率，还增加了生产成本。
发明内容
本发明提供一种触摸面板用触摸线路的保护方法，其可避免因触摸面板中的触摸线路被损坏而导致的触摸面板功能失灵，不但提升了触摸面板的产品良率，还会降低触摸面板的成产成本。
本发明提供一种触摸面板用触摸线路的保护方法，包括：
提供一触摸面板；
在所述触摸面板的CF基板上涂覆溶解于水的胶材；
将涂覆溶解于水的胶材的CF基板根据预定的烘烤温度进行干燥处理以得到一保护膜以保护触摸线路；
通过切割将每个液晶显示屏从一玻璃基板上分离出来；及
将切割之后的CF基板进行水洗以去除所述保护膜。
其中，所述溶解于水的胶材为聚乙烯醇液体，其聚合度为500～5000，醇解度大于85mol/L，
其中，所述聚乙烯醇液体涂覆于所述CF基板具有金属层的背面上，并覆盖住所述金属层上的触摸线路。
其中，所述在所述触摸面板的CF基板上涂覆溶解于水的胶材，包括：
在所述触摸面板的CF基板上通过网版印刷的方式涂布聚乙烯醇液体至所述金属层上的触摸线路上。
其中，所述保护膜为网格形状的膜层，该保护膜覆盖于所述金属层上的触摸线路上，所述CF基板上的所述金属层上的触摸线路之外的区域露出没有被该保护膜覆盖。
其中，所述在所述触摸面板的CF基板上涂覆溶解于水的胶材，包括：
在所述触摸面板的CF基板上涂布整面覆盖的聚乙烯醇液体。
其中，所述保护膜为平面状的膜层，该保护膜涂覆于该CF基板的金属层上的触摸线路上，并覆盖了所述金属层上的触摸线路以及该金属层上的触摸线路之外的区域。
其中，所述在所述触摸面板的CF基板上涂布整面覆盖的聚乙烯醇液体的方式包括：Coater、Inkjet及APR版转印中的任意一种。
其中，所述保护膜的厚度为大于等于1微米且小于等于50微米。
其中，所述预定的温度小于等于70℃。
其中，所述触摸线路包括多条第一金属线组及多条第二金属线组，多条所述第一金属线组之间等间距地相互平行排列，多条所述第二金属线组之间等间距地相互平行排列，且与每一所述第一金属线组相垂直，多条第一金属线组及多条第二金属线组交叉排列以在所述CF基板的背面形成网格状排列的触摸线路区域。
其中，所述触摸面板包括一设置于所述CF基板一侧的阵列基板，所述阵列基板为薄膜晶体管阵列基板。
其中，所述触摸面板还包括一背光模组，所述阵列基板位于所述背光模组上，且所述背光模组、所述阵列基板及所述CF基板依次层叠排列在一起。
其中，所述CF基板包括第一表面及与该第一表面平行的第二表面，所述第一表面为所述CF基板的正面，其正对所述背光模组，所述第二表面为该CF基板的背面。
其中，所述触摸面板包括一金属层，所述金属层设置于所述CF基板的第二表面上，所述金属层由两层金属线构成，该两层金属线之间由一绝缘层隔开。
其中，所述触摸面板包括液晶层，该液晶层位于所述阵列基板与所述CF基板的第一表面之间，所述背光模组发出的光线透过该液晶层照射到所述CF基板上。
其中，所述将涂覆有PVA液体的CF基板按照预定的烘烤温度进行烘烤处理以得到一保护膜，包括：
将涂覆有PVA液体的CF基板放置于烤箱内进行真空烘烤并进行冷却，以得到一保护膜；或者
将涂覆有PVA液体的CF基板放置于高压气体成型模具中进行烘烤，泄压 后开模取出冷却，以得到一保护膜。
与现有技术相较，在本发明的触摸面板用触摸线路的保护方法中，所述金属层的第一金属线组及第二金属线组上涂布有溶解于水的胶材，并将该溶解于水的胶材烘干干燥后形成一保护膜，该保护膜可覆盖并保护第一金属线组及第二金属线组等触摸线路。因此，所述金属层的第一金属线组及第二金属线组上形成该保护膜之后，在将液晶显示屏从玻璃基板切割分离过程中，可避免了残留的玻璃屑刮断或损坏所述金属层的第一金属线组及第二金属线组等触摸线路，从而保证了触摸线路区域与外部触摸控制电路正常传输信号，如此，不但可提升了触摸面板的产品良率，还可降低该触摸面板的生产成本。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为根据本发明一实施例的触摸面板的结构示意图。
图2为图1所示金属层的第一金属线组与第二金属线组的排列示意图。
图3为根据本发明一实施例的触摸面板涂布有保护膜的示意图。
图4为根据本发明另一实施例的触摸面板涂布有保护膜的示意图。
图5为根据本发明一实施例的触摸面板用触摸线路的保护方法的流程图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
此外，以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明中所提到的方向用语，例如，“上”、“下”、“前”、“后”、“左”、“右”、“内”、“外”、“侧面”等，仅是参考附加图式的方向，因此，使 用的方向用语是为了更好、更清楚地说明及理解本发明，而不是指示或暗指所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
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，也可以是可拆卸地连接，或者一体地连接；可以是机械连接；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。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
此外，在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。本说明书中“工序”的用语不仅是指独立的工序，在与其它工序无法明确区别时，只要能实现该工序所预期的作用则也包括在本用语中。另外，本说明书中用“～”表示的数值范围是指将“～”前后记载的数值分别作为最小值及最大值包括在内的范围。在附图中，结构相似或相同的单元用相同的标号表示。
本发明实施例的触摸面板可应用于手机、PDA(personal digital assistant，个人数字助理)、数码相框、MP3、MP4、PAD、液晶电视等任何具有显示功能的产品或部件。
在本发明的实施例中，该触摸面板可为外挂式触摸屏，如，OGS(One Glass Solution，即单片玻璃解决方案)触摸面板，也可以为内嵌式触摸屏，如，On-cell触摸面板和In-cell触摸面板。为了便于说明，本发明实施以On-cell触摸面板为例加以说明，但并不仅仅局限于此类型的触摸面板。
请参阅图1，图1为根据本发明一实施例的触摸面板的结构示意图。如图1所示，在本发明的实施例中，所述触摸面板100包括：背光模组10、阵列基板20、CF(color filter，即彩色滤光片)基板30及金属层50。所述背光模组10、所述阵列基板20及所述CF基板30依次层叠排列在一起形成一个整体，也即是说，所述阵列基板20位于所述背光模组10上，所述CF基板30位于所述阵列基板20上，所述金属层50设置于所述CF基板30相对于所述阵列基板20的一侧面上。
在本发明的实施例中，所述背光模组10为该触摸面板100的关键零组件之一，其用于提供充足的亮度与分布均匀的光源，以使得所述触摸面板100 可以正常显示影像。所述阵列基板20为TFT(thin film transistor，薄膜晶体管)阵列基板，其设置所述背光模组10上。所述CF基板30位于所述阵列基板20相对于所述背光模组10的一侧，该CF基板30是一种表现颜色的光学滤光片，其可通过精确选择预通过波段范围的光波，并反射掉其他不希望通过的波段范围的光波。所述CF基板30包括第一表面31及与该第一表面31平行的第二表面33，在本发明的实施例中，所述第一表面31为所述CF基板30的正面，其正对所述背光模组10。所述第二表面33为该CF基板30的背面。
所述金属层50设置于所述CF基板30相对于所述阵列基板20的一侧面上，具体地，该金属层50由一层金属线构成，其设置于所述CF基板30的第二表面33(即该CF基板30的背面)，用于实现触摸功能。在本发明实施例中，所述金属层50包括多条第一金属线组51及多条第二金属线组53，多条所述第一金属线组51之间相互平行(可设定该第一金属线组51为横向排列)，多条所述第二金属线组53之间相互平行(可设定该第二金属线组53为纵向排列)，且与每一所述第一金属线组51相垂直。请参阅图2，图2为图1所示金属层的第一金属线组与第二金属线组的排列示意图。
较佳地，多条所述第一金属线组51之间等间距地相互平行，多条所述第二金属线组53之间等间距地相互平行，且与所述第一金属线组51之间相互交叉排列，从而在所述CF基板30的第二表面33形成网格状排列的区域。
所述触摸面板100上对应于该网格状排列的多条第一金属线组51及多条第二金属线组53区域即为具有触摸功能的触摸线路区域，其用于用户实现触控输入操作。每个第一金属线组51和第二金属线组53均包括有多条金属线，且每个第一金属线组51和每个第二金属线组53均与外部触摸控制电路电性连接，即，所述具有触摸功能的触摸线路区域通过所述第一金属线组51及第二金属线组53与一外部触摸控制电路(图未示)电性连接，以传输所述触摸线路区域产生的触摸信号至所述触摸控制电路，或将该触摸控制电路发出的控制信号传输至该触摸线路区域，进而实现该触摸面板100的触摸功能。
可以理解，在本发明的其他实施例中，所述金属层50并不局限于由一层金属线构成，其还可以由两层金属线构成。当该金属层50的数量为两层时，该两层金属结构之间还设置一绝缘层，以将两个所述金属层绝缘隔开。另外， 本说明书中，触摸面板用触摸线路不仅包含位于触摸线路区域内的金属线，而且也包含位于该触摸线路区域上的电极，还可以包含边框区域的金属配线。
所述触摸面板100还包括液晶层(图未示)，该液晶层位于所述阵列基板20与所述CF基板30之间，具体地，该液晶层位于所述阵列基板20与所述CF基板30的第一表面31之间，所述背光模组10发出的光线可透过该液晶层照射到所述CF基板30上。
请参阅图3，图3为根据本发明一实施例的触摸面板涂布有保护膜的示意图。进一步地，所述触摸面板100还包括保护膜60，该保护膜60涂覆在所述CF基板30具有所述金属层50的第二表面33上。由于该保护膜60涂覆于所述金属层50的第一金属线组51及第二金属线组53上，并对该第一金属线组51及第二金属线组53具有保护作用，因此，在将显示屏从玻璃基板切割分离过程中，避免了残留的玻璃屑刮断或损坏所述金属层50的第一金属线组51及第二金属线组53，从而保证了触摸线路区域与外部触摸控制电路正常传输信号，如此，不但可提升了触摸面板的产品良率，还可降低该触摸面板的生产成本。
在本发明实施例中，所述保护膜60可由快速溶解于水的胶材制成，较佳地，该保护膜60可由聚乙烯醇(Poly Vinyl Alcoho，PVA)制成，其聚合度为500～5000，醇解度大于85mol/L。如图3所示，所述保护膜60可为网格形状的膜层，其涂覆于所述第一金属线组51及所述第二金属线组53上，则该CF基板30上所述第一金属线组51及所述第二金属线组53之外的区域露出没有被该保护膜60覆盖，该网格形状的保护膜的形状和尺寸与所述第一金属线组51及所述第二金属线组53交叉排列形成的网格的形状和尺寸相匹配。可以理解，该保护膜60的厚度可以通过涂布PVA胶材的量来控制，以达到较好的保护效果。较佳地，所述保护膜60的厚度为1微米(um)～50um。所述网格形状的保护膜可通过网版印刷的方法制成。
可以理解，所述保护膜60的形态并不局限于网格形状，其还可以为其他形状，请参阅图4，图4为根据本发明另一实施例的触摸面板涂布有保护膜的示意图。如图4所示，所述保护膜60可为平面状的膜层，即该保护膜60涂覆于该CF基板30的整个第二表面33，并覆盖了所述第一金属线组51及所述第 二金属线组53以及该第一金属线组51及所述第二金属线组53之外的区域。该保护膜60的厚度可以通过涂布PVA胶材的量来控制，以达到较好的保护效果。较佳地，所述保护膜60的厚度为1um～50um。所述网格形状的保护膜可通过Coater、Inkjet、APR版转印等方法制成。
下面结合图1至图4对本发明一较佳实施方式的触摸面板用触摸线路的保护方法进行介绍。请参阅图5，图5为根据本发明一实施例的触摸面板用触摸线路的保护方法的流程图。在本实施方式中，所述触摸面板用触摸线路的保护方法包括以下步骤。
步骤210，提供一触摸面板100。
具体为，在本发明实施例中，所述触摸面板100包括：背光模组10、阵列基板20、CF(color filter，即彩色滤光片)基板30及金属层50。所述背光模组10、所述阵列基板20及所述CF基板30依次层叠排列在一起形成一个整体，也即是说，所述阵列基板20位于所述背光模组10上，所述CF基板30位于所述阵列基板20上，所述金属层50设置于所述CF基板30相对于所述阵列基板20的一侧面上。
在本发明的实施例中，所述背光模组10为该触摸面板100的关键零组件之一，其用于提供充足的亮度与分布均匀的光源，以使得所述触摸面板100可以正常显示影像。所述阵列基板20为TFT(thin film transistor，薄膜晶体管)阵列基板，其设置所述背光模组10上。所述CF基板30位于所述阵列基板20相对于所述背光模组10的一侧，该CF基板30是一种表现颜色的光学滤光片，其可通过精确选择预通过波段范围的光波，并反射掉其他不希望通过的波段范围的光波。所述CF基板30包括第一表面31及与该第一表面31平行的第二表面33，在本发明的实施例中，所述第一表面31为所述CF基板30的正面，其正对所述背光模组10。所述第二表面33为该CF基板30的背面。
如图2所示，所述金属层50设置于所述CF基板30相对于所述阵列基板20的一侧面上，具体地，该金属层50由一层金属线构成，其设置于所述CF基板30的第二表面33(即该CF基板30的背面)，用于实现触摸功能。在本发明实施例中，所述金属层50包括多条第一金属线组51及多条第二金属线组53，多条所述第一金属线组51之间相互平行(可设定该第一金属线组51为横 向排列)，多条所述第二金属线组53之间相互平行(可设定该第二金属线组53为纵向排列)，且与每一所述第一金属线组51相垂直。
较佳地，多条所述第一金属线组51之间等间距地相互平行，多条所述第二金属线组53之间等间距地相互平行，且与所述第一金属线组51之间相互交叉排列，从而在所述CF基板30的第二表面33形成网格状排列的区域。
所述触摸面板100上对应于该网格状排列的多条第一金属线组51及多条第二金属线组53区域即为具有触摸功能的触摸线路区域，其用于实现用户触控输入操作。每个第一金属线组51和第二金属线组53均包括有多条金属线，且每个第一金属线组51和每个第二金属线组53均与外部触摸控制电路电性连接，即，所述具有触摸功能的触摸线路区域通过所述第一金属线组51及第二金属线组53与一外部触摸控制电路(图未示)电性连接，以传输所述触摸线路区域产生的触摸信号至所述触摸控制电路，或将该触摸控制电路发出的控制信号传输至该触摸线路区域，进而实现该触摸面板100的触摸功能。
可以理解，在本发明的其他实施例中，所述金属层50并不局限于由一层金属线构成，其还可以由两层金属线构成。当该金属层50的数量为两层时，该两层金属结构之间还设置一绝缘层，以将两个所述金属层绝缘隔开。另外，本说明书中，触摸面板用触摸线路不仅包含位于触摸线路区域内的金属线，而且也包含位于该触摸线路区域上的电极，还可以包含边框区域的金属配线。
所述触摸面板100还包括液晶层(图未示)，该液晶层位于所述阵列基板20与所述CF基板30之间，具体地，该液晶层位于所述阵列基板20与所述CF基板30的第一表面31之间，所述背光模组10发出的光线可透过该液晶层照射到所述CF基板30上。
步骤220，在所述触摸面板100的CF基板30上涂覆溶解于水的胶材。
具体为，在本发明的实施例中，所述溶解于水的胶材可为聚乙烯醇(Poly Vinyl Alcoho，PVA)液体，其聚合度为500～5000，醇解度大于85mol/L。所述PVA液体涂覆于所述CF基板30具有所述金属层50的第二表面33上，并覆盖住所述金属层50的第一金属线组51及第二金属线组53上，因而对该第一金属线组51及第二金属线组53具有保护作用。
在本发明的一个实施方式中，在所述触摸面板100的CF基板30上通过 网版印刷的方式涂布PVA液体至第一金属线组51及第二金属线组53上，具体为，该PVA液体涂覆于述第一金属线组51及所述第二金属线组53上，则该CF基板30上所述第一金属线组51及所述第二金属线组53之外的区域露出没有涂布该PVA液体。
在本发明的另一实施方式中，在所述触摸面板100的CF基板30上涂布整面覆盖的PVA液体，具体为，该PVA液体涂布于该CF基板30的整个第二表面33，并覆盖了所述第一金属线组51及所述第二金属线组53以及该第一金属线组51及所述第二金属线组53之外的区域。在所述触摸面板100的CF基板30上涂布整面覆盖的PVA液体的方式包括但并不局限于：Coater、Inkjet、APR版转印等方法。
步骤230，将涂覆溶解于水的胶材的CF基板30根据预定的烘烤温度进行干燥处理以得到一保护膜60以保护所述金属层50。
具体为，在本发明的实施例中，将涂覆有PVA液体的CF基板30按照预定的烘烤温度进行烘烤处理，例如，将涂覆有PVA液体的CF基板30可放置于烤箱内进行真空烘烤并进行冷却，以得到一保护膜60，或者，将涂覆有PVA液体的CF基板30放置于高压气体成型模具中进行烘烤，泄压后开模取出冷却，以得到一保护膜60。较佳地，所述预定的温度小于等于70℃。
如图3所示，在所述触摸面板100的CF基板30上通过网版印刷的方式涂布PVA液体，并根据预定的烘烤温度进行干燥处理以得到的保护膜60为网格形状的膜层，该保护膜60覆盖于所述第一金属线组51及所述第二金属线组53上，则该CF基板30上的所述第一金属线组51及所述第二金属线组53之外的区域露出没有被该保护膜60覆盖，该网格形状的保护膜60的形状和尺寸与所述第一金属线组51及所述第二金属线组53交叉排列形成的网格的形状和尺寸相匹配。可以理解，该保护膜60的厚度可以通过涂布PVA的量来控制，以达到较好的保护效果。较佳地，所述保护膜60的厚度为1微米(um)～50um，即，该保护膜60的厚度为大于等于1微米且小于等于50微米。
如图4所示，在所述触摸面板100的CF基板30上涂布整面覆盖的PVA液体，并根据预定的烘烤温度进行干燥处理以得到的保护膜60为平面状的膜层，即该保护膜60涂覆于该CF基板30的整个第二表面33，并覆盖了所述第 一金属线组51及所述第二金属线组53以及该第一金属线组51及所述第二金属线组53之外的区域。该保护膜60的厚度可以通过涂布PVA的量来控制，以达到较好的保护效果。较佳地，所述保护膜60的厚度为1um～50um。
步骤240，通过切割将每个液晶显示屏从一玻璃基板上分离出来。
在液晶显示屏的制程过程中，一般是先将多个小的液晶显示屏整合在一个大的玻璃基板上，在完成阵列、彩膜、成盒对组等制程之后，需要通过切割将每个小的液晶显示屏从所述玻璃基板上分离出来。由于该保护膜60涂覆于所述金属层50的第一金属线组51及第二金属线组53上，并对该第一金属线组51及第二金属线组53具有保护作用，因此，在将液晶显示屏从玻璃基板切割分离过程中，避免了残留的玻璃屑刮断或损坏所述金属层50的第一金属线组51及第二金属线组53，从而保证了触摸线路区域与外部触摸控制电路正常传输信号，如此，不但可提升了触摸面板的产品良率，还可降低该触摸面板的生产成本。
步骤250，将切割之后的CF基板30进行水洗以去除所述保护膜60。
具体为，在本发明的实施例中，由于所述保护膜60由可快速溶解于水的PVA胶材制成，因此通过水洗即可将覆盖于所述CF基板30上所述第一金属线组51及所述第二金属线组53的保护膜60清洗干净。例如，将切割之后的CF基板30置于传送带输送到一水槽内以清水清洗，并将水温调节至合适的温度，则该保护膜60即可溶解于水中直至完全去除该保护膜60，之后晾干即可。
综上所述，在本发明的触摸面板用触摸线路的保护方法中，所述金属层50的第一金属线组51及第二金属线组53上涂布有溶解于水的胶材，并将该溶解于水的胶材烘干干燥后形成一保护膜60，该保护膜60可覆盖并保护第一金属线组51及第二金属线组53等触摸线路。因此，所述金属层50的第一金属线组51及第二金属线组53上形成该保护膜60之后，在将液晶显示屏从玻璃基板切割分离过程中，可避免了残留的玻璃屑刮断或损坏所述金属层50的第一金属线组51及第二金属线组53等触摸线路，从而保证了触摸线路区域与外部触摸控制电路正常传输信号，如此，不但可提升了触摸面板的产品良率，还可降低该触摸面板的生产成本。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、 “具体示例”或“一些示例”等的描述意指结合该实施例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例或示例中。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例或示例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所揭露的仅为本发明一种较佳实施例而已，当然不能以此来限定本发明之权利范围，本领域普通技术人员可以理解实现上述实施例的全部或部分流程，并依本发明权利要求所作的等同变化，仍属于发明所涵盖的范围。

Claims (17)

  1. 一种触摸面板用触摸线路的保护方法，其中，所述触摸面板用触摸线路的保护方法包括：
    提供一触摸面板；
    在所述触摸面板的CF基板上涂覆溶解于水的胶材；
    将涂覆溶解于水的胶材的CF基板根据预定的烘烤温度进行干燥处理以得到一保护膜以保护触摸线路；
    通过切割将每个液晶显示屏从一玻璃基板上分离出来；及
    将切割之后的CF基板进行水洗以去除所述保护膜。
  2. 如权利要求1所述的触摸面板用触摸线路的保护方法，其中，所述溶解于水的胶材为聚乙烯醇液体，其聚合度为500～5000，醇解度大于85mol/L，
  3. 如权利要求2所述的触摸面板用触摸线路的保护方法，其中，所述聚乙烯醇液体涂覆于所述CF基板具有金属层的背面上，并覆盖住所述金属层上的触摸线路。
  4. 如权利要求3所述的触摸面板用触摸线路的保护方法，其中，所述在所述触摸面板的CF基板上涂覆溶解于水的胶材，包括：
    在所述触摸面板的CF基板上通过网版印刷的方式涂布聚乙烯醇液体至所述金属层上的触摸线路上。
  5. 如权利要求4所述的触摸面板用触摸线路的保护方法，其中，所述保护膜为网格形状的膜层，该保护膜覆盖于所述金属层上的触摸线路上，所述CF基板上的所述金属层上的触摸线路之外的区域露出没有被该保护膜覆盖。
  6. 如权利要求2所述的触摸面板用触摸线路的保护方法，其中，所述在所述触摸面板的CF基板上涂覆溶解于水的胶材，包括：
    在所述触摸面板的CF基板上涂布整面覆盖的聚乙烯醇液体。
  7. 如权利要求6所述的触摸面板用触摸线路的保护方法，其中，所述保护膜为平面状的膜层，该保护膜涂覆于该CF基板的金属层上的触摸线路上，并覆盖了所述金属层上的触摸线路以及该金属层上的触摸线路之外的区域。
  8. 如权利要求6所述的触摸面板用触摸线路的保护方法，其中，所述在所述触摸面板的CF基板上涂布整面覆盖的聚乙烯醇液体的方式包括：Coater、Inkjet及APR版转印中的任意一种。
  9. 如权利要求1所述的触摸面板用触摸线路的保护方法，其中，所述保护膜的厚度为大于等于1微米且小于等于50微米。
  10. 如权利要求1所述的触摸面板用触摸线路的保护方法，其中，所述预定的温度小于等于70℃。
  11. 如权利要求1所述的触摸面板用触摸线路的保护方法，其中，所述触摸线路包括多条第一金属线组及多条第二金属线组，多条所述第一金属线组之间等间距地相互平行排列，多条所述第二金属线组之间等间距地相互平行排列，且与每一所述第一金属线组相垂直，多条第一金属线组及多条第二金属线组交叉排列以在所述CF基板的背面形成网格状排列的触摸线路区域。
  12. 如权利要求1所述的触摸面板用触摸线路的保护方法，其中，所述触摸面板包括一设置于所述CF基板一侧的阵列基板，所述阵列基板为薄膜晶体管阵列基板。
  13. 如权利要求12所述的触摸面板用触摸线路的保护方法，其中，所述触摸面板还包括一背光模组，所述阵列基板位于所述背光模组上，且所述背光模组、所述阵列基板及所述CF基板依次层叠排列在一起。
  14. 如权利要求12所述的触摸面板用触摸线路的保护方法，其中，所述CF基板包括第一表面及与该第一表面平行的第二表面，所述第一表面为所述CF基板的正面，其正对所述背光模组，所述第二表面为该CF基板的背面。
  15. 如权利要求14所述的触摸面板用触摸线路的保护方法，其中，所述触摸面板包括一金属层，所述金属层设置于所述CF基板的第二表面上，所述金属层由两层金属线构成，该两层金属线之间由一绝缘层隔开。
  16. 如权利要求14所述的触摸面板用触摸线路的保护方法，其中，所述触摸面板包括液晶层，该液晶层位于所述阵列基板与所述CF基板的第一表面之间，所述背光模组发出的光线透过该液晶层照射到所述CF基板上。
  17. 如权利要求1所述的触摸面板用触摸线路的保护方法，其中，所述将涂覆有PVA液体的CF基板按照预定的烘烤温度进行烘烤处理以得到一保护膜，包括：
    将涂覆有PVA液体的CF基板放置于烤箱内进行真空烘烤并进行冷却，以得到一保护膜；或者
    将涂覆有PVA液体的CF基板放置于高压气体成型模具中进行烘烤，泄压后开模取出冷却，以得到一保护膜。
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