WO2017219405A1 - 触摸屏、显示装置及触摸屏的制备方法 - Google Patents

触摸屏、显示装置及触摸屏的制备方法 Download PDF

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Publication number
WO2017219405A1
WO2017219405A1 PCT/CN2016/089781 CN2016089781W WO2017219405A1 WO 2017219405 A1 WO2017219405 A1 WO 2017219405A1 CN 2016089781 W CN2016089781 W CN 2016089781W WO 2017219405 A1 WO2017219405 A1 WO 2017219405A1
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Prior art keywords
touch screen
insulating layer
layer
adhesive layer
functional sheet
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PCT/CN2016/089781
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English (en)
French (fr)
Inventor
李波
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武汉华星光电技术有限公司
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Priority to US15/125,186 priority Critical patent/US20180217693A1/en
Publication of WO2017219405A1 publication Critical patent/WO2017219405A1/zh

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412Digitisers structurally integrated in a display
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04102Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04112Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material

Definitions

  • the present invention claims the prior application priority of the application No. 201610475147.5, entitled “Touch Screen, Display Device, and Touch Screen Preparation Method", which is filed on June 24, 2016, the contents of which are incorporated herein by reference. in.
  • the present invention relates to the field of touch display technologies, and in particular, to a touch screen, a display device, and a method for preparing the touch screen.
  • the common capacitive touch screen structure is G+G (cover glass-induction layer glass), OGS (monolithic touch panel), GF (cover glass-induction layer film), GFF (cover glass - An external capacitive screen, such as an upper sensing layer film and a lower sensing layer film, and an On cell (a method of embedding a touch panel function between a color filter substrate and a polarizing plate), In cell The method of embedding the touch panel function into the liquid crystal pixel is represented by an embedded capacitive screen. While the performance of the product is steadily increasing, the thinning of the product has become an increasingly important trend. Compared with the on cell and in cell in the process complexity, the GF2 (cover glass-film-XY) structure of the external capacitive screen is mature and stable in the process, and can support large-size products.
  • the traditional GF2 structure product due to its special structure of double-sided conduction, the GF2 capacitive screen and the liquid crystal display panel are attached to the bonding surface, and a protective film, such as an anti-scattering film with an adhesive layer, is required.
  • ASF anti-scattering film with an adhesive layer
  • the technical problem to be solved by the present invention is to provide a touch screen having a small thickness.
  • a display device to which the touch screen is applied is also provided.
  • a touch screen including:
  • a functional sheet comprising a first surface and a second surface having electrically conductive functions and oppositely disposed, the first surface being attached to the glass cover by a first adhesive layer, the functional sheet forming a window area and surrounding the window The route area set by the area;
  • liquid crystal display panel that simultaneously bonds the second surface and the insulating layer through a second adhesive layer.
  • the thickness of the insulating layer is less than or equal to 10 ⁇ m.
  • the thickness of the insulating layer is greater than or equal to 5 ⁇ m.
  • the functional sheet includes a first metal mesh layer, a PET substrate, and a second metal mesh layer which are sequentially stacked.
  • the first adhesive layer and the second adhesive layer are both made of a transparent optical adhesive material.
  • a display device comprising the touch screen of any of the above.
  • a method for preparing a touch screen including:
  • a functional sheet Preparing a functional sheet, the functional sheet comprising a first surface and a second surface having electrically conductive functions and oppositely disposed, the functional sheet forming a window area and a routing area disposed around the window area;
  • a liquid crystal display panel is attached on a surface of the second adhesive layer away from the second surface to form a touch screen.
  • the “preparing the functional sheet, the functional sheet including the first surface and the second surface having the conductive function and oppositely disposed” includes:
  • a patterned second metal mesh layer is formed on the other side of the PET substrate by roll-to-roll, the second metal mesh layer having a second surface.
  • the “forming an insulating layer on the second surface” includes:
  • the insulating layer coating is cured to form an insulating layer.
  • the “forming a first adhesive layer on the first surface” includes:
  • the first adhesive layer is attached to the first surface by a board-to-board method.
  • the present invention has the following beneficial effects:
  • the insulating layer covers the routing area, so that the line of the functional piece is completely isolated from the outside, which improves the product performance reliability of the touch screen. Moreover, since the insulating layer exposes the window region, the window region of the touch screen has high light transmittance and good display quality. At the same time, since the thickness of the insulating layer can be controlled within a very thin range, the overall thickness of the touch screen is reduced, which contributes to lightening and thinning of the touch screen. Moreover, the insulation layer is low in cost, and can also effectively reduce the production cost of the touch screen.
  • FIG. 1 is a schematic structural diagram of a touch screen according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a function panel of a touch screen according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for preparing a touch screen according to an embodiment of the present invention.
  • the fixed connection may also be detachably connected or integrally connected; it 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 embodiment of the present invention provides a touch screen 100 including a glass cover 1, a first adhesive layer 2, a sensor 3, an insulating layer 4, a second adhesive layer 5, and a liquid crystal.
  • the functional sheet 3 includes a first surface 31 and a second surface 32 which are electrically conductive and disposed oppositely, and the first surface 31 is attached to the glass cover 1 through the first adhesive layer 2, the function
  • the sheet 3 forms a window area 301 and a routing area 302 disposed around the window area 301.
  • the insulating layer 4 is located on the second surface 32 and covers the routing area 302.
  • the liquid crystal display panel 6 simultaneously bonds the second surface 32 and the insulating layer 4 through the second adhesive layer 5 .
  • the insulating layer 4 covers the routing area 302, the circuit of the functional sheet 3 is completely isolated from the outside, which improves the product performance reliability of the touch screen 100. Moreover, since the insulating layer 4 exposes the window region 301, the window region 301 of the touch screen 100 has high light transmittance and good display picture quality. At the same time, because the thickness of the insulating layer 4 can be controlled In a very thin range, the overall thickness of the touch screen 100 is reduced, which contributes to the thinning of the touch screen 100. Moreover, the insulating layer 4 is low in cost, and can also effectively reduce the production cost of the touch screen 100.
  • the touch screen 100 is particularly suitable for a large size (the window area 301 has a large proportion) and a thin touch. Display device.
  • the thickness of the insulating layer 4 is less than or equal to 10 ⁇ m, so that the overall thickness of the touch screen 100 is small.
  • the insulating layer 4 has a thickness of 5 ⁇ m or more. That is, the insulating layer 4 preferably has a thickness ranging from 5 ⁇ m to 10 ⁇ m.
  • the functional sheet 3 includes a first metal mesh layer 33 and a PET (Polyethylene terephthalate). Ethylene phthalate, a chemical formula of COC6H4COOCH2CH2O) substrate 34 and a second metal mesh 35.
  • the first metal mesh layer 33 has a first surface 31, the first surface 31 is away from the PET substrate 34; the second metal mesh layer 35 has a second surface 32, the second The surface 32 is remote from the PET substrate 34.
  • the touch screen 100 employs the PET substrate 34, the touch screen 100 is the flexible touch screen 100.
  • the first adhesive layer 2 and the second adhesive layer 5 are both made of transparent optical adhesive (OCA) material, so that the first adhesive layer 2 and the The second adhesive layer 5 does not reduce the picture display quality of the touch screen 100, and the production of the touch screen 100 is also reduced because the first adhesive layer 2 and the second adhesive layer 5 use the same material. cost.
  • OCA transparent optical adhesive
  • the embodiment of the invention further provides a display device comprising the touch screen 100 according to any of the above embodiments.
  • the display device has a small thickness, a low cost, and a good display quality.
  • the display device includes, but is not limited to, a mobile phone, a notebook, a tablet, a POS, an onboard computer, a camera, and the like.
  • an embodiment of the present invention further provides a method for preparing a touch screen, including:
  • Step 1 preparing a sensor 3, which includes a conductive function and is opposite a first surface 31 and a second surface 32 are provided, the functional sheet 3 forms a window area 301 and a routing area 302 disposed around the window area 301;
  • Step 2 forming an insulating layer 4 on the second surface 32, and the insulating layer 4 covers the routing area 302;
  • Step 3 forming a first adhesive layer 2 on the first surface 31;
  • Step 4 attaching a glass cover 1 on the surface of the first adhesive layer 2 away from the first surface 31;
  • Step 5 forming a second adhesive layer 5 on the second surface 32 and the insulating layer 4;
  • Step 6 attaching the liquid crystal display panel 6 on the surface of the second adhesive layer 5 away from the second surface 32 to form the touch screen 100.
  • the insulating layer 4 covers the routing area 302 and exposes the window area 301, so that the line of the functional sheet 3 is completely isolated from the outside, and the product performance of the touch screen 100 is improved.
  • the window area 301 has a high light transmittance and a good display quality.
  • the thickness of the insulating layer 4 can be controlled within a very thin range, the overall thickness of the touch screen 100 is reduced, which contributes to the thinning of the touch screen 100.
  • the insulating layer 4 is low in cost, and can also effectively reduce the production cost of the touch screen 100.
  • step Step 1 includes:
  • Step 11 providing PET (Polyethylene terephthalate, polyethylene terephthalate, chemical formula is COC6H4COOCH2CH2O) substrate 34, the PET substrate 34 is a roll of substrate;
  • Step 12 forming a patterned first metal mesh layer 33 on one side of the PET substrate 34 by a roll to roll method, the first metal mesh layer 33 having a The first surface 31;
  • Step 13 forming a patterned second metal mesh 35 on the other side of the PET substrate 34 by a roll to roll method, the second metal mesh layer 35 having Second surface 32.
  • step Step 1 results in a roll of functional pieces each having a plurality of said functional pieces 3.
  • step Step 2 includes:
  • Step 21 printing a patterned insulating layer coating on the second surface 32 by way of roll to roll;
  • Step 22 curing the insulating layer coating to form the insulating layer 4.
  • the roll-to-roll printing method is adopted, so that the insulating layer 4 can be directly patterned on the second surface 32, and can be processed in large quantities and continuously, with high processing precision and low cost.
  • the insulating layer coating may be cured by ultraviolet (UV) irradiation.
  • the insulating layer 4 has a thickness ranging from 5 ⁇ m to 10 ⁇ m.
  • step Step 2 is further included between step Step 2 and Step 3:
  • the rolled functional sheets are cut to form a panel functional sheet, and each of the panels has a plurality of the functional sheets 3.
  • step Step 3 includes:
  • the first adhesive layer 2 is attached to the first surface 31 by means of a sheet by sheet.
  • the board-to-board printing method is adopted, so that the first bonding layer 2 can be simultaneously attached to the plurality of the functional sheets 3, and can also be processed in large quantities and continuously, with high processing precision. low cost.
  • step Step 3 is further included between step Step 3 and Step 4:
  • the inspection of the two steps is beneficial to improve the yield of the touch screen 100.
  • step Step 4 is further included between step Step 4 and Step 5:
  • the inspection step is advantageous to improve the yield of the touch screen 100.

Abstract

一种触摸屏(100)及其制备方法和包括该触摸屏(100)的显示装置,该触摸屏(100)包括:玻璃盖板(1);功能片(3),包括具有导电功能且相对设置的第一表面(31)和第二表面(32),所述第一表面(31)通过第一粘贴层(2)贴合至所述玻璃盖板(1),所述功能片(3)形成视窗区(301)和环绕所述视窗区(301)设置的走线区(302);绝缘层(4),位于所述第二表面(32)且覆盖所述走线区(302);以及液晶显示面板(6),所述液晶显示面板(6)通过第二粘贴层(5)同时贴合所述第二表面(32)以及所述绝缘层(4)。

Description

触摸屏、显示装置及触摸屏的制备方法
本发明要求2016年6月24日递交的发明名称为“触摸屏、显示装置及触摸屏的制备方法”的申请号201610475147.5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
本发明涉及触摸显示技术领域,尤其涉及一种触摸屏、一种显示装置以及一种触摸屏的制备方法。
背景技术
伴随电子产品的日益发展成熟,触摸屏的应用范围逐步扩大,其生产制造技术也呈现出多样性。目前常见的电容式触摸屏结构有,以G+G(盖板玻璃-感应层玻璃)、OGS(单片式触控面板)、GF(盖板玻璃-感应层薄膜)、GFF(盖板玻璃-上感应层薄膜-下感应层薄膜)等为代表的外挂式电容屏,以及以On cell(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(指将触摸面板功能嵌入到液晶像素中的方法)为代表的嵌入式电容屏。在产品性能稳步提升的同时,产品轻薄化成为越来越重要的一个趋势。相比于on cell和in cell在制程上的复杂性,GF2(盖板玻璃-薄膜-XY)结构外挂式电容屏在制程上成熟稳定,可以支持大尺寸产品。
传统的GF2结构产品,因其双面导电的特殊结构,GF2电容屏与液晶显示面板贴合的贴合面上需要加贴一层保护膜,例如带有粘贴层的防爆膜(Anti scattering film,ASF),用来保护触控线路。这样虽然能够有效保护线路,但是由于防爆膜完全覆盖GF2电容屏的贴合面,并且防爆膜较厚,因此防爆膜增加了产品的整体厚度。
发明内容
本发明所要解决的技术问题在于提供一种厚度小的触摸屏。
此外,还提供一种应用所述触摸屏的显示装置。
另外,还提供一种触摸屏的制备方法。
为了实现上述目的,本发明实施方式采用如下技术方案:
一方面,提供一种触摸屏,包括:
玻璃盖板;
功能片,包括具有导电功能且相对设置的第一表面和第二表面,所述第一表面通过第一粘贴层贴合至所述玻璃盖板,所述功能片形成视窗区和环绕所述视窗区设置的走线区;
绝缘层,位于所述第二表面且覆盖所述走线区;以及
液晶显示面板,所述液晶显示面板通过第二粘贴层同时贴合所述第二表面以及所述绝缘层。
其中,所述绝缘层的厚度小于等于10μm。
其中,所述绝缘层的厚度大于等于5μm。
其中,所述功能片包括依次层叠设置的第一金属网格层、PET基材以及第二金属网格层。
其中,所述第一粘贴层和所述第二粘贴层均采用透明光学胶材料。
另一方面,还提供一种显示装置,包括如上任一项所述的触摸屏。
再另一方面,还提供一种触摸屏的制备方法,包括:
制备功能片,所述功能片包括具有导电功能且相对设置的第一表面和第二表面,所述功能片形成视窗区和环绕所述视窗区设置的走线区;
在所述第二表面上形成绝缘层,并且所述绝缘层覆盖所述走线区;
在所述第一表面上形成第一粘贴层;
在所述第一粘贴层远离所述第一表面的表面上贴附玻璃盖板;
在所述第二表面和所述绝缘层上形成第二粘贴层;及
在所述第二粘贴层远离所述第二表面的表面上贴附液晶显示面板,以形成触摸屏。
其中,所述“制备功能片,所述功能片包括具有导电功能且相对设置的第一表面和第二表面”包括:
提供PET基板;
通过卷对卷的方式,在所述PET基板的一侧形成图案化的第一金属网格 层,所述第一金属网格层具有所述第一表面;以及
通过卷对卷的方式,在所述PET基板的另一侧形成图案化的第二金属网格层,所述第二金属网格层具有第二表面。
其中,所述“在所述第二表面上形成绝缘层”包括:
通过卷对卷的方式,在所述第二表面上印刷图案化的绝缘层涂层;
固化所述绝缘层涂层,以形成绝缘层。
其中,所述“在所述第一表面上形成第一粘贴层”包括:
通过板对板的方式,在所述第一表面上贴合所述第一粘贴层。
相较于现有技术,本发明具有以下有益效果:
本发明实施例所述触摸屏,由于其所述绝缘层覆盖所述走线区,使得所述功能片的线路与外界完全隔绝,提高了所述触摸屏的产品性能可靠性。并且,由于所述绝缘层暴露出所述视窗区,故而所述触摸屏的所述视窗区的透光率高、显示画面质量好。同时,因为所述绝缘层的厚度可以控制在很薄的范围内,使得所述触摸屏的整体厚度减小,有助于所述触摸屏实现轻薄化。再者,所述绝缘层成本低,也能够有效降低所述触摸屏的生产成本。
附图说明
为了更清楚地说明本发明的技术方案,下面将对实施方式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方式,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,还可以如这些附图获得其他的附图。
图1是本发明实施例提供的一种触摸屏的结构示意图。
图2是本发明实施例提供的一种触摸屏的功能片的结构示意图。
图3是本发明实施例提供的一种触摸屏的制备方法的流程图。
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作出创造 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”、“设置在……上”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。若本说明书中出现“工序”的用语,其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。
请一并参阅图1和图2,本发明实施例提供一种触摸屏100,包括玻璃盖板1、第一粘贴层2、功能片(sensor)3、绝缘层4、第二粘贴层5以及液晶显示面板6。其中,所述功能片3包括具有导电功能且相对设置的第一表面31和第二表面32,所述第一表面31通过第一粘贴层2贴合至所述玻璃盖板1,所述功能片3形成视窗区301和环绕所述视窗区301设置的走线区302。所述绝缘层4位于所述第二表面32且覆盖所述走线区302。所述液晶显示面板6通过第二粘贴层5同时贴合所述第二表面32以及所述绝缘层4。
在本实施例中,由于所述绝缘层4覆盖所述走线区302,使得所述功能片3的线路与外界完全隔绝,提高了所述触摸屏100的产品性能可靠性。并且,由于所述绝缘层4暴露出所述视窗区301,故而所述触摸屏100的所述视窗区301的透光率高、显示画面质量好。同时,因为所述绝缘层4的厚度可以控制 在很薄的范围内,使得所述触摸屏100的整体厚度减小,有助于所述触摸屏100实现轻薄化。再者,所述绝缘层4成本低,也能够有效降低所述触摸屏100的生产成本。
应当理解的,由于本实施例所述触摸屏100的视窗区301上未覆盖所述绝缘层4,因此所述触摸屏100特别适用于大尺寸的(所述视窗区301比例大)、薄化的触摸显示装置。
进一步地,作为一种可选实施例,所述绝缘层4的厚度小于等于10μm,使得所述触摸屏100的整体厚度小。
优选的,所述绝缘层4的厚度大于等于5μm。也即,所述绝缘层4较佳的厚度范围为5μm~10μm。
进一步地,请一并参阅图1和图2,作为一种可选实施例,所述功能片3包括依次层叠设置的第一金属网格层(metal mesh)33、PET(Polyethylene terephthalate,聚对苯二甲酸乙二醇酯,化学式为COC6H4COOCH2CH2O)基板34以及第二金属网格层(metal mesh)35。此时,所述第一金属网格层33具有第一表面31,所述第一表面31远离所述PET基板34;所述第二金属网格层35具有第二表面32,所述第二表面32远离所述PET基板34。同时,由于所述触摸屏100采用PET基板34,因此所述触摸屏100为柔性触摸屏100。
进一步地,作为一种可选实施例,所述第一粘贴层2和所述第二粘贴层5均采用透明光学胶(Optically Clear Adhesive,OCA)材料,使得所述第一粘贴层2和所述第二粘贴层5均不会降低所述触摸屏100的画面显示质量,同时由于所述第一粘贴层2和所述第二粘贴层5采用相同的物料,也降低了所述触摸屏100的生产成本。
本发明实施例还提供一种显示装置,包括如上任一实施例所述的触摸屏100。所述显示装置的厚度小、成本低、画面显示质量好。
所述显示装置包括但不限于手机、笔记本、平板电脑、POS机、车载电脑、相机等。
请一并参阅图1至图3,本发明实施例还提供一种触摸屏的制备方法,包括:
Step1:制备功能片(sensor)3,所述功能片3包括具有导电功能且相对 设置的第一表面31和第二表面32,所述功能片3形成视窗区301和环绕所述视窗区301设置的走线区302;
Step2:在所述第二表面32上形成绝缘层4,并且所述绝缘层4覆盖所述走线区302;
Step3:在所述第一表面31上形成第一粘贴层2;
Step4:在所述第一粘贴层2远离所述第一表面31的表面上贴附玻璃盖板1;
Step5:在所述第二表面32和所述绝缘层4上形成第二粘贴层5;及
Step6:在所述第二粘贴层5远离所述第二表面32的表面上贴附液晶显示面板6,以形成触摸屏100。
在本实施例中,所述绝缘层4覆盖所述走线区302、暴露出所述视窗区301,使得所述功能片3的线路与外界完全隔绝,提高了所述触摸屏100的产品性能可靠性,并且所述视窗区301的透光率高、显示画面质量好。同时,因为所述绝缘层4的厚度可以控制在很薄的范围内,使得所述触摸屏100的整体厚度减小,有助于所述触摸屏100实现轻薄化。再者,所述绝缘层4成本低,也能够有效降低所述触摸屏100的生产成本。
进一步地,作为一种可选实施例,步骤Step1包括:
Step11:提供PET(Polyethylene terephthalate,聚对苯二甲酸乙二醇酯,化学式为COC6H4COOCH2CH2O)基板34,所述PET基板34为成卷的基材;
Step12:通过卷对卷(roll to roll)的方式,在所述PET基板34的一侧形成图案化的第一金属网格层(metal mesh)33,所述第一金属网格层33具有所述第一表面31;以及
Step13:通过卷对卷(roll to roll)的方式,在所述PET基板34的另一侧形成图案化的第二金属网格层(metal mesh)35,所述第二金属网格层35具有第二表面32。
在本实施例中,卷对卷的工艺方式,使得所述功能片3可进行大批量加工,并且成本低。应当理解的,步骤Step1得到的是成卷功能片,每卷都具有多个所述功能片3。
进一步地,作为一种可选实施例,步骤Step2包括:
Step21:通过卷对卷(roll to roll)的方式,在所述第二表面32上印刷图案化的绝缘层涂层;
Step22:固化所述绝缘层涂层,以形成绝缘层4。
在本实施例中,采用卷对卷的印刷方式,使得所述绝缘层4能够直接在所述第二表面32上实现图案化,并且可进行大批量、连续加工,加工精度高、成本低。优选的,步骤Step22中,可以通过紫外线(UV)照射来固化所述绝缘层涂层。
优选的,所述绝缘层4的厚度范围为5μm~10μm。
进一步地,作为一种可选实施例,在步骤Step2和步骤Step3之间还包括以下步骤:
将成卷功能片进行裁切,形成成板功能片,每板都具有多个所述功能片3。
进一步地,作为一种可选实施例,步骤Step3包括:
通过板对板(sheet by sheet)的方式,在所述第一表面31上贴合所述第一粘贴层2。
在本实施例中,采用板对板的印刷方式,使得所述第一粘贴层2能够同时贴合在多个所述功能片3上,也即可进行大批量、连续加工,加工精度高、成本低。
进一步地,作为一种可选实施例,在步骤Step3和步骤Step4之间还包括以下步骤:
冲切成板功能片,以形成单独的多个所述功能片3;
对所述功能片3进行功能和外检检查;
将柔性电路板(FPC)绑定至所述功能片3,以形成半成品;
对所述半成品进行功能检查。
在本实施例中,两个步骤的检查,有利于提高所述触摸屏100的成品良率。
进一步地,作为一种可选实施例,在步骤Step4和步骤Step5之间还包括以下步骤:
对步骤Step4形成的成品进行外观和功能检查。
在本实施例中,检查步骤有利于提高所述触摸屏100的成品良率。
以上对本发明实施例进行了详细介绍,本文中应用了具体个例对本发明的 原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本发明的方法及其核心思想;同时,对于本领域的一般技术人员,依据本发明的思想,在具体实施方式及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本发明的限制。

Claims (14)

  1. 一种触摸屏,其中,包括:
    玻璃盖板;
    功能片,包括具有导电功能且相对设置的第一表面和第二表面,所述第一表面通过第一粘贴层贴合至所述玻璃盖板,所述功能片形成视窗区和环绕所述视窗区设置的走线区;
    绝缘层,位于所述第二表面且覆盖所述走线区;以及
    液晶显示面板,所述液晶显示面板通过第二粘贴层同时贴合所述第二表面以及所述绝缘层。
  2. 如权利要求1所述的触摸屏,其中,所述绝缘层的厚度小于等于10μm。
  3. 如权利要求2所述的触摸屏,其中,所述绝缘层的厚度大于等于5μm。
  4. 如权利要求1所述的触摸屏,其中,所述功能片包括依次层叠设置的第一金属网格层、PET基材以及第二金属网格层。
  5. 如权利要求1所述的触摸屏,其中,所述第一粘贴层和所述第二粘贴层均采用透明光学胶材料。
  6. 一种显示装置,其中,包括触摸屏,所述触摸屏包括:
    玻璃盖板;
    功能片,包括具有导电功能且相对设置的第一表面和第二表面,所述第一表面通过第一粘贴层贴合至所述玻璃盖板,所述功能片形成视窗区和环绕所述视窗区设置的走线区;
    绝缘层,位于所述第二表面且覆盖所述走线区;以及
    液晶显示面板,所述液晶显示面板通过第二粘贴层同时贴合所述第二表面以及所述绝缘层。
  7. 如权利要求6所述的显示装置,其中,所述绝缘层的厚度小于等于10μm。
  8. 如权利要求7所述的显示装置,其中,所述绝缘层的厚度大于等于5μm。
  9. 如权利要求6所述的显示装置,其中,所述功能片包括依次层叠设置的 第一金属网格层、PET基材以及第二金属网格层。
  10. 如权利要求6所述的显示装置,其中,所述第一粘贴层和所述第二粘贴层均采用透明光学胶材料。
  11. 一种触摸屏的制备方法,其中,包括:
    制备功能片,所述功能片包括具有导电功能且相对设置的第一表面和第二表面,所述功能片形成视窗区和环绕所述视窗区设置的走线区;
    在所述第二表面上形成绝缘层,并且所述绝缘层覆盖所述走线区;
    在所述第一表面上形成第一粘贴层;
    在所述第一粘贴层远离所述第一表面的表面上贴附玻璃盖板;
    在所述第二表面和所述绝缘层上形成第二粘贴层;及
    在所述第二粘贴层远离所述第二表面的表面上贴附液晶显示面板,以形成触摸屏。
  12. 如权利要求11所述的触摸屏的制备方法,其中,所述“制备功能片,所述功能片包括具有导电功能且相对设置的第一表面和第二表面”包括:
    提供PET基板;
    通过卷对卷的方式,在所述PET基板的一侧形成图案化的第一金属网格层,所述第一金属网格层具有所述第一表面;以及
    通过卷对卷的方式,在所述PET基板的另一侧形成图案化的第二金属网格层,所述第二金属网格层具有第二表面。
  13. 如权利要求11所述的触摸屏的制备方法,其中,所述“在所述第二表面上形成绝缘层”包括:
    通过卷对卷的方式,在所述第二表面上印刷图案化的绝缘层涂层;
    固化所述绝缘层涂层,以形成绝缘层。
  14. 如权利要求11所述的触摸屏的制备方法,其中,所述“在所述第一表面上形成第一粘贴层”包括:
    通过板对板的方式,在所述第一表面上贴合所述第一粘贴层。
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