WO2020034667A1 - 触摸屏和显示装置及其制备方法 - Google Patents

触摸屏和显示装置及其制备方法 Download PDF

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Publication number
WO2020034667A1
WO2020034667A1 PCT/CN2019/085138 CN2019085138W WO2020034667A1 WO 2020034667 A1 WO2020034667 A1 WO 2020034667A1 CN 2019085138 W CN2019085138 W CN 2019085138W WO 2020034667 A1 WO2020034667 A1 WO 2020034667A1
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substrate
touch screen
buffer structure
protrusion
present application
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PCT/CN2019/085138
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English (en)
French (fr)
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周子琳
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云谷（固安）科技有限公司
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Publication of WO2020034667A1 publication Critical patent/WO2020034667A1/zh
Priority to US16/797,204 priority Critical patent/US20200192513A1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Definitions

  • the present application relates to the field of electronic manufacturing, and in particular, to a touch screen and a display device and a method for manufacturing the same.
  • the impact resistance of the touch screen still needs to be improved.
  • the hit area cannot be displayed in full color instantly; this is because the stress concentration cannot be dispersed at the moment of the heavy object impact and the component is damaged.
  • the embodiments of the present application provide a touch screen and a display device and a method for manufacturing the same, which can disperse the impact force when the display device receives an impact force, thereby protecting the display device.
  • a first aspect of the embodiments of the present application provides a touch screen including: at least one first substrate; a buffer structure, wherein the buffer structure is located on the at least one first substrate, the buffer structure has at least one protrusion, and at least one protrusion is elastic
  • the material is constituted so that when the buffer structure receives an impact force, the impact force is dispersed by deformation of at least one protrusion.
  • the touch screen further includes a liquid optical adhesive layer, and the liquid optical adhesive layer is disposed on at least one first substrate for sealing the buffer structure.
  • the touch screen further includes: a plurality of electronic components dispersedly arranged on at least one first substrate, and at least one protrusion is located at a gap between adjacent electronic components of the plurality of electronic components, The height of at least one protrusion is greater than the height of the electronic component.
  • the height of the at least one protrusion is 1.2 to 1.8 times the height of the electronic component.
  • the height of the at least one protrusion is 1.5 times the height of the electronic component.
  • the touch screen further includes a plurality of electronic components disposed on an upper surface of the at least one first substrate, and the buffer structure is disposed on a lower surface of the at least one first substrate.
  • the electronic component includes a nano-silver touch-sensitive electronic component.
  • the touch screen further includes a second substrate, wherein the buffer structure is located between the at least one first substrate and the second substrate, or the buffer structure is located at least one first substrate away from the second substrate. On one side of the substrate.
  • the shape of the at least one protrusion includes at least one of a truncated cone shape, a cylindrical shape, and a hemispherical shape.
  • the first substrate includes a composite layer formed by bonding a silicon oxide layer and a polyimide layer.
  • a hemispherical protrusion in the at least one protrusion is connected to the first substrate through a circular cross section of the hemisphere.
  • the bottom surface of the at least one protrusion having a circular truncated shape is connected to the first substrate.
  • a second aspect of the embodiments of the present application provides a display device including: a light emitting layer; and the touch screen provided by the first aspect of the embodiments of the present application, wherein the touch screen is disposed on the light emitting layer.
  • the buffer structure is located between the at least one first substrate and the light emitting layer.
  • a third aspect of the embodiments of the present application provides a method for preparing a touch screen, including: providing a first substrate; providing an elastic substance layer on the first substrate; processing the elastic substance layer into a buffer structure by means of photolithography or transfer, Wherein, the buffer structure has protrusions, so that when the buffer structure receives an impact force, the impact force is dispersed by deformation of the protrusion.
  • the method for preparing the touch screen further includes: forming a liquid optical adhesive layer on the buffer structure to seal the buffer structure.
  • a resilient buffer structure with a protrusion on the first substrate of the touch screen, when the touch screen is impacted, the protrusion can be deformed, and the impact force is dispersed, thereby protecting the device. purpose.
  • Fig. 1 is a schematic structural diagram of a touch screen according to an exemplary embodiment of the present application.
  • Fig. 2 is a schematic structural diagram of a touch screen according to another exemplary embodiment of the present application.
  • Fig. 3 is a schematic structural diagram of a touch screen according to still another exemplary embodiment of the present application.
  • Fig. 4 is a schematic block diagram of a display device according to an exemplary embodiment of the present application.
  • Fig. 5 is a schematic flowchart of a method for preparing a touch screen according to an exemplary embodiment of the present application.
  • Fig. 1 is a structural diagram of a touch screen 100 according to an exemplary embodiment of the present application.
  • the touch screen 100 includes: at least one first substrate 110 and a buffer structure 130.
  • the first substrate 110 is a structure carrying various originals in the touch screen 100.
  • the first substrate 110 is made of a transparent inert material.
  • the first substrate 110 is made of silicon oxide.
  • the first substrate 110 is a composite structure formed by bonding a silicon oxide layer and a polyimide layer.
  • the first substrate 110 is composed of sapphire, and the material of the first substrate 110 is not limited in the embodiment of the present application.
  • an electronic component 120 is disposed on the first substrate 110.
  • the electronic component 120 includes various components required to implement the functions of the touch screen 100.
  • the electronic component 120 includes a nano-silver touch-sensitive electronic component.
  • the electronic component 120 includes a micro capacitor, a micro inductor, and a circuit for connecting the electronic component.
  • the embodiment of the present application does not limit the type and arrangement of the electronic component 120.
  • the electronic component 120 on the first substrate 110 may be prepared on the first substrate 110 by etching or photolithography, which is not limited in the embodiment of the present application.
  • the buffer structure 130 wherein the buffer structure 130 is located on the first base 110, the buffer structure 130 has at least one protrusion, and each protrusion of the at least one protrusion is made of an elastic substance, so that when the buffer structure 130 receives an impact force, it passes The convex deformation disperses the impact force.
  • the buffer structure 130 may be formed of a material having elasticity.
  • the buffer structure 130 is formed of a photoresist.
  • the buffer structure 130 may be formed of silica gel. Composition, the embodiment of the present application does not limit the specific composition of the buffer structure.
  • the touch screen 100 further includes a plurality of electronic components arranged in a dispersed manner.
  • the buffer structure 130 may be composed of a plurality of protrusions, and the protrusions are columnar and are distributed at the gap between the adjacent electronic components 120.
  • the buffer structure 130 may be composed of multiple protrusions, and the protrusions are stripe-shaped and are distributed at the gap between the adjacent electronic components 120, which is not limited in the embodiment of the present application.
  • the height of the protrusion is greater than the height of the electronic component.
  • protrusions having a height greater than that of the electronic component, when the touch screen receives an impact from above the electronic component, the protrusion will be impacted and deformed before the electronic component, thereby dispersing the impact force and protecting the electronic component.
  • the height of the protrusion is 1.2 to 1.8 times the height of the electronic component; preferably, the height of the protrusion is 1.5 times the height of the electronic component.
  • the height of the protrusion is 1.5 times the height of the electronic component, the purpose of protecting the electronic component can be achieved, and the amount of the material constituting the buffer structure is also small.
  • the touch screen 100 has a multilayer structure, wherein each layer has a first substrate 110, and the buffer structure 130 is disposed on one of the first substrates 110.
  • the layer in which the buffer structure 130 is disposed is not limited.
  • an electronic component 120 is disposed on an upper surface of the first substrate 110, and a buffer structure 130 is disposed on a lower surface of the first substrate 110.
  • the buffer structure 130 is composed of a buffer layer and protrusions provided on the buffer layer.
  • the buffer layer is attached to the lower surface of the first substrate 110 and the protrusions are dispersed on the buffer layer in a columnar shape.
  • the protrusions are dispersed in a strip shape on the buffer layer, and the specific shape of the protrusions is not limited in the embodiment of the present application.
  • the embodiment of the present application by providing a resilient buffer structure with a protrusion on the first substrate of the touch screen, when the touch screen is impacted, the protrusion can be deformed, thereby dispersing the impact force, thereby protecting the device the goal of.
  • the embodiment of the present application has a simple process, has a small yield impact, and the thickness of the screen body after assembly will not increase significantly.
  • the shape of the protrusion includes at least one of a circular truncated cone shape, a cylindrical shape, or a hemispherical shape.
  • the hemispherical shape includes at least one of a semi-ellipsoid or a semi-sphere, wherein the hemispherical protrusion and the first base are connected by a circular cross section on the hemisphere.
  • the shape of the protrusion is a circular truncated cone, and the bottom surface of the circular truncated cone is connected to the first substrate.
  • the circular truncated, cylindrical or hemispherical protrusions can effectively disperse the impact force, and when processed by photolithography or etching, the process is simpler, thereby improving production efficiency.
  • the electronic component includes a nano-silver touch-sensitive electronic component;
  • the first substrate includes a composite layer formed by bonding a silicon oxide layer and a polyimide layer.
  • a bumper structure with protrusions is provided so that when such a touch screen is impacted, protrusions can be generated Deformation, and then disperse the impact, so as to protect the equipment.
  • the touch screen 100 further includes a liquid optical adhesive layer, wherein the optical adhesive layer is disposed on the first substrate for sealing the buffer structure.
  • Liquid optical adhesive is a special adhesive used to bond transparent optical components (such as lenses). It is colorless and transparent, has a light transmittance of more than 90%, good bonding strength, can be cured at room or medium temperature, and has small curing shrinkage. Organic silicone, acrylic resin, and unsaturated polyester, polyurethane, epoxy and other adhesives can bond optical components.
  • the liquid optical glue is set on the buffer structure to seal the buffer structure.
  • the liquid optical glue seals the buffer structure, so that the first substrate with the buffer structure can be adhered to other components through the liquid optical glue, and the liquid optical glue fills the gap around the protrusion, so that no gas is trapped in the touch screen, which improves the Product quality of touch screen.
  • the touch screen is applied to a display device.
  • the display device further includes a light emitting layer, and the buffer structure is located between the first substrate and the light emitting layer.
  • Fig. 2 is a structural diagram of a touch screen 200 according to another exemplary embodiment of the present application.
  • the touch screen 200 includes: a first substrate 210, an electronic component 220, a buffer structure 230, and a light emitting layer 240.
  • the light-emitting layer 240 refers to a component for emitting light and displaying information in the touch screen 200, and is generally composed of light-emitting diodes and other electronic components.
  • a first substrate 210 provided with a touch-sensitive electronic component 220 covers the light-emitting layer 240.
  • the buffer structure 230 is disposed between the first substrate 210 and the light-emitting layer 240, wherein the buffer structure 230 is made of transparent glue.
  • a layer of glue is first provided on the lower surface of the first substrate 210, and then the glue is processed into protrusions by a transfer method to form the buffer structure 230.
  • the preparation of the buffer structure 230 can use a transfer process, which reduces the process difficulty and manufacturing cost.
  • Fig. 3 is a structural diagram of a touch screen 300 according to still another exemplary embodiment of the present application.
  • the touch screen 300 includes: a cover plate 310, optical adhesive layers 321, 322, and 323, a silicon oxide first substrate 331 and 332, a polyimide first substrate 341 and 342, an electronic component 350, and a buffer structure 360. And light-emitting layer 370.
  • the touch screen 300 is composed of three functional layer structures, and the lowermost functional layer is a light emitting layer 370 for displaying various information.
  • the light emitting layer 370 is composed of a light emitting diode and corresponding electronic components.
  • the light-emitting layer 370 is connected to the first polyimide substrate 342 above it through an optical adhesive 323.
  • the optical adhesive 323 has a high light permeability and can connect the light-emitting layer 370 and the first polyimide substrate 342. Gluing.
  • the intermediate functional layer is located on the upper surface of the polyimide first substrate 342.
  • the intermediate functional layer includes a silicon oxide layer 332, and the silicon oxide layer 332 is used to carry touch-sensitive electronic components.
  • a buffer structure 360 is provided on the upper surface of the silicon oxide layer 332.
  • the buffer structure 360 is composed of a plurality of elastic bumps, and the bumps are distributed in a circular truncated shape at the gap between the touch-sensitive electronic components.
  • the height of the protrusion in the buffer structure 360 is greater than the height of the surrounding electronic components.
  • the silicon oxide layer 332 and the polyimide layer 341 are connected by an optical adhesive 322.
  • the optical glue 322 fills the gaps around the buffer structure 360 and the electronic component, so that there are no air bubbles around the buffer structure 360 and the electronic component, which improves the quality of the touch screen 300.
  • the uppermost functional layer is composed of a silicon oxide layer 331, an electronic component 350, and an optical glue 321.
  • the uppermost functional layer is the same as the intermediate functional layer except that it does not have a buffer structure 360, and will not be repeated here.
  • cover plate 310 Covered on the top functional layer is a cover plate 310.
  • the cover plate 310 is usually made of a material such as glass or plastic to protect the structure under the cover plate.
  • the touch screen 300 further includes: a second substrate, the buffer structure is located between the first substrate and the second substrate; or, the buffer structure is located on a side of the first substrate away from the second substrate.
  • a touch screen having a double-layer structure can be provided with a buffer structure in any one of the layers, thereby improving the impact resistance of the double-layer structure touch screen.
  • Another embodiment of the present application provides a display device including: a light emitting layer; the touch screen described in the above embodiment, wherein the touch screen is disposed on the light emitting layer.
  • Fig. 4 is a schematic block diagram of a display device 400 according to an exemplary embodiment of the present application. As shown, the display device 400 in FIG. 4 includes a body 410, a light emitting layer 420, and a touch screen 430.
  • the body 410 of the display device 400 is used for carrying or accommodating various electronic devices.
  • a light-emitting layer 420 is provided on the upper surface of the body 410 for displaying various image information.
  • the light-emitting layer 420 is covered with the foregoing implementation. Any one of the touch screens 430 in the example enables a user to control the display device 400 by touching.
  • the impact force can be dispersed and buffered by the buffer structure in the touch screen 430, thereby protecting the light emitting layer 420.
  • Fig. 5 is a flow chart showing a method for preparing a touch screen according to an exemplary embodiment of the present application.
  • the method for preparing the touch screen includes the following steps.
  • S520 An elastic substance layer is provided on the first substrate, wherein a plurality of electronic components are provided on the first substrate.
  • the elastic substance layer is composed of an elastic adhesive.
  • the elastic substance layer is composed of a photoresist, and a plurality of electronic components are provided on the first substrate.
  • the photoresist combines the electronic components and the plurality of electronic components. The gap between them is covered.
  • the elastic material layer is composed of silica gel, and the specific composition of the buffer structure is not limited in the embodiment of the present application.
  • S530 The elastic material layer is processed into a buffer structure by means of photolithography or transfer, wherein the buffer structure has protrusions, so that when the buffer structure receives an impact force, the impact force is dispersed by the deformation of the protrusion.
  • the buffer structure is made of a photoresist, and the protrusions are prepared by photolithography.
  • a layer of photoresist is provided on the first substrate, and the photoresist covers the electronic component and the surface of the first substrate.
  • a mask is used to cover the position of the protrusions to be prepared in the photoresist, and after the rest of the photoresist is exposed and removed, the protrusions are left to form a buffer structure.
  • the buffer structure is composed of a plurality of scattered protrusions, and the protrusions are distributed at the gaps between the electronic components.
  • the protrusions are stripe-shaped and are distributed at the gaps between the electronic components. The embodiment of the present application does not limit the specific shape and position of the protrusions.
  • the buffer structure is made of transparent silica gel, and the protrusions are prepared by a transfer method.
  • an electronic component is disposed on an upper surface of the first substrate.
  • a layer of transparent silica gel is coated on the lower surface of the first substrate, and the colloidal layer is punched through a mold to prepare a bump and form a buffer structure.
  • the protrusions can exhibit a columnar or stripe shape in a dispersed distribution, and the specific shape of the protrusions is not limited in the embodiment of the present application.
  • the protrusion can be deformed, thereby dispersing the impact force, thereby protecting the device. Purpose, and the process is simple, the yield rate is small, and the thickness of the screen body after assembly will not increase significantly.
  • the method for preparing the touch screen further includes: preparing a liquid optical adhesive layer on the buffer structure to seal the buffer structure.
  • Liquid optical adhesive is a special adhesive used to bond transparent optical components (such as lenses). It is colorless and transparent, has a light transmittance of more than 90%, good bonding strength, can be cured at room or medium temperature, and has small curing shrinkage. Organic silicone, acrylic resin, and unsaturated polyester, polyurethane, epoxy and other adhesives can bond optical components.
  • the liquid optical glue is set on the buffer structure to seal the buffer structure.
  • the liquid optical glue seals the buffer structure, so that the first substrate with the buffer structure can be adhered to other components through the liquid optical glue, and the liquid optical glue fills the gap around the protrusion, so that no gas is trapped in the touch screen, which improves the Product quality of touch screen.

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Abstract

一种触摸屏（100）和显示装置及其制备方法，触摸屏（100）包括：第一基底（110）；缓冲结构（130），其中，缓冲结构（130）位于第一基底（110）上，缓冲结构（130）具有凸起，凸起由弹性物质构成，以便缓冲结构（130）受到冲击力时，通过凸起的变形将冲击力分散。通过在触摸屏（100）的第一基底（110）上设置具有凸起的弹性缓冲结构（130），当触摸屏（100）受到冲击力时，凸起可以产生变形，进而分散冲击力，从而起到保护设备的目的。

Description

触摸屏和显示装置及其制备方法
本申请要求由申请人提出的，申请日为2018年8月13日、申请号为CN201810916755.4、名称为“触摸屏和显示装置及其制备方法”的申请的优先权。以上申请的全部内容通过整体引用结合于此。
技术领域
本申请涉及电子制造领域，尤其涉及一种触摸屏和显示装置及其制备方法。
发明背景
近年来，柔性触摸屏在手机和便携设备上的应用越来越广泛。然而，触摸屏的抗冲击性能仍需提高，例如，当触摸屏受到重物冲击时，被击中的区域瞬间不能全彩显示；这是因为重物击中瞬间，应力集中无法分散导致元件受损。
因此，亟待一种能够提高触摸屏和显示装置抗冲击能力的技术。
发明内容
有鉴于此，本申请实施例提供一种触摸屏和显示装置及其制备方法，能够通过显示装置受到冲击力时分散冲击力，从而起到保护显示装置的目的。
本申请实施例的第一方面提供一种触摸屏，包括：至少一个第一基底；缓冲结构，其中，缓冲结构位于至少一个第一基底上，缓冲结构具有至少一个凸起，至少一个凸起由弹性物质构成，以便缓冲结构受到冲击力时，通过至少一个凸起的变形将冲击力分散。
在本申请的一个实施例中，上述触摸屏还包括：液体光学胶层，液体光学胶层设置在至少一个第一基底上，用于密封缓冲结构。
在本申请的一个实施例中，上述触摸屏还包括：分散布置在至少一个第一基底上的多个电子元件，至少一个凸起位于多个电子元件中的相邻电子元件之间的间隙处，至少一个凸起的高度大于电子元件的高度。
在本申请的一个实施例中，至少一个凸起的高度为电子元件高度的1.2～1.8倍。
在本申请的一个实施例中，至少一个凸起的高度为电子元件高度的1.5倍。
在本申请的一个实施例中，上述触摸屏还包括：设置在至少一个第一基底的上表面的多个电子元件，其中，缓冲结构设置在至少一个第一基底的下表面上。
在本申请的一个实施例中，电子元件包括纳米银触摸感应电子元件。
在本申请的一个实施例中，上述触摸屏还包括：第二基底，其中，缓冲结构 位于所述至少一个第一基底与第二基底之间，或者，缓冲结构位于至少一个第一基底远离第二基底的一侧上。
在本申请的一个实施例中，至少一个凸起的形状包括圆台状、圆柱状和半球状中的至少一个。
在本申请的一个实施例中，第一基底包括氧化硅层和聚酰亚胺层贴合构成的复合层。
在本申请的一个实施例中，至少一个凸起中形状为半球状的凸起与第一基底通过半球的圆形截面连接。
在本申请的一个实施例中，至少一个凸起中形状为圆台状的凸起的底面连接在第一基底上。
本申请实施例的第二方面提供一种显示装置，包括：发光层；和本申请实施例的第一方面提供的触摸屏，其中，上述触摸屏设置在发光层上。
在本申请的一个实施例中，缓冲结构位于至少一个第一基底与发光层之间。
本申请实施例的第三方面提供一种触摸屏的制备方法，包括：提供第一基底；在第一基底上设置弹性物质层；通过光刻或转印的方式将弹性物质层加工成缓冲结构，其中，缓冲结构具有凸起，以便缓冲结构受到冲击力时，通过凸起的变形将冲击力分散。
在本申请的一个实施例中，上述触摸屏的制备方法还包括：在缓冲结构上形成液体光学胶层，以密封缓冲结构。
根据本申请实施例提供的技术方案，通过在触摸屏的第一基底上设置具有凸起的弹性缓冲结构，当触摸屏受到冲击时，凸起可以产生变形，进而分散冲击力，从而起到保护设备的目的。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本申请。
附图简要说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本申请的实施例，并与说明书一起用于解释本申请的原理。
图1是根据本申请一示例性实施例示出的一种触摸屏的结构示意图。
图2是根据本申请另一示例性实施例示出的一种触摸屏的结构示意图。
图3是根据本申请再一示例性实施例示出的一种触摸屏的结构示意图。
图4是根据本申请一示例性实施例示出的一种显示装置的示意性框图。
图5是根据本申请一示例性实施例示出的一种触摸屏制备方法的示意性流程图。
实施本发明的方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。
图1是根据本申请一示例性实施例示出的一种触摸屏100的结构图。如图1所示，触摸屏100包括：至少一个第一基底110和缓冲结构130。
本申请实施例中，第一基底110是触摸屏100中承载各种原件的结构，通常情况下，由透明的惰性材料构成，例如，本申请的一个实施例中，第一基底110由氧化硅构成。本申请的另一个实施例中，第一基底110为氧化硅层和聚酰亚胺层贴合而成的复合结构。本申请的再一个实施例中，第一基底110由蓝宝石构成，本申请实施例对于第一基底110的材质不做限定。
本申请实施例中，第一基底110上设置有电子元件120。电子元件120包括各种实现触摸屏100的功能所需的元件，例如，本申请的一个实施例中，电子元件120包括纳米银触摸感应电子元件。本申请的另一个实施例中，电子元件120包括微电容、微电感以及用于连接电子元件的电路，本申请实施例对于电子元件120的类型和排布方式不做限定。第一基底110上的电子元件120可以通过腐蚀或光刻的方式制备在第一基底110上，本申请实施例对此不做限定。
缓冲结构130，其中，缓冲结构130位于第一基底110上，缓冲结构130具有至少一个凸起，至少一个凸起中的每个凸起由弹性物质构成，以便缓冲结构130受到冲击力时，通过凸起的变形将冲击力分散。
本申请实施例中，缓冲结构130可以由具有弹性的材料构成，例如本申请的一个实施例中，缓冲结构130由光刻胶构成，本申请的另一个实施例中，缓冲结构130可以由硅胶构成，本申请实施例对于缓冲结构的具体组成成分不做限定。
在本申请的一个实施例中，触摸屏100还包括：分散布置的多个电子元件。本申请的一个实施例中，缓冲结构130可以由多个凸起构成，凸起呈柱状，分布在相邻电子元件120之间的间隙处。本申请的另一个实施例中，缓冲结构130可以由多个凸起构成，凸起呈条状，分布在相邻电子元件120之间的间隙处，本申请实施例对此不做限定。
在本申请的一个实施例中，凸起的高度大于电子元件的高度。
通过设置高度大于电子元件的凸起，使得触摸屏受到来自电子元件上方的冲击时，凸起会先于电子元件受到冲击并变形，从而将冲击力分散，保护电子元件。
本申请的一个实施例中，上述凸起的高度为电子元件高度的1.2～1.8倍；优选地，上述凸起的高度为电子元件高度的1.5倍。
当凸起的高度为电子元件高度的1.5倍时，能够起到保护电子元件的目的，同时对构成缓冲结构的材料的使用量也较少。
本申请的另一个实施例中，触摸屏100中具有多层结构，其中，每一层都具有第一基底110，缓冲结构130设置在其中的一个第一基底110上，本申请实施例对于具有多层结构的触摸屏100中，缓冲结构130设置在哪一层中不做限定。
本申请的另一个实施例中，第一基底110的上表面设置有电子元件120，缓冲结构130设置在第一基底110的下表面上。
本申请实施例中，缓冲结构130由一层缓冲层和设置在缓冲层上的凸起构成，其中，缓冲层与第一基底110的下表面贴合，凸起呈柱状分散在缓冲层上。本申请的另一个实施例中，凸起呈条状分散在缓冲层上，本申请实施例对于凸起的具体形状不做限定。
根据本申请实施例所提供的技术方案，通过在触摸屏的第一基底上设置具有凸起的弹性缓冲结构，当触摸屏受到冲击时，凸起可以产生变形，进而分散冲击力，从而起到保护设备的目的。另外，本申请的实施例工艺简单，良率影响小，组装后的屏体厚度不会有明显增加。
本申请的一个实施例中，上述凸起的形状包括圆台状、圆柱状或半球状中的至少一个。
本申请实施例中，半球状包括半椭球或半圆球中的至少一个，其中，半球状凸起与第一基底通过半球上的圆形截面相连接。本申请的另一个实施例中，凸起的形状为圆台状，圆台的底面连接在第一基底上。
圆台状、圆柱状或半球状的凸起能够有效地分散冲击力，并且采用光刻或腐蚀的方式加工时，工艺较为简单，从而提升了生产效率。
本申请的一个实施例，上述电子元件包括纳米银触摸感应电子元件；上述第一基底包括氧化硅层和聚酰亚胺层贴合构成的复合层。
对于采用纳米银触摸感应电子元件，以及氧化硅层和聚酰亚胺层贴合构成的复合层制备的触摸屏，设置带有凸起的缓冲结构使得此种触摸屏在受到冲击时，凸起可以产生变形，进而分散冲击力，从而起到保护设备的目的。
在本申请的一个实施例中，触摸屏100还包括：液体光学胶层，其中，光学胶层设置在第一基底上，用于密封缓冲结构。
液体光学胶是一种用于胶结透明光学元件(如镜头等)的特种胶粘剂。具有无色透明、光透过率在90％以上、胶结强度良好，可在室温或中温下固化，且有固化收缩小等特点。有机硅胶、丙烯酸型树脂及不饱和聚酯、聚氨酯、环氧树脂等胶粘剂都可胶结光学元件。本申请实施例中，将液体光学胶设置在缓冲结构上，以将缓冲结构包裹密封住。
通过液体光学胶将缓冲结构密封，使得具有缓冲结构的第一基底能够通过液体光学胶与其他部件粘合，并且液体光学胶填充了凸起周边的空隙，使得触摸屏中不会夹杂气体，提升了触摸屏的产品质量。
在本申请的一个实施例中，触摸屏应用在显示装置上，显示装置还包括发光层，缓冲结构位于第一基底与发光层之间。
图2是根据本申请另一示例性实施例示出的一种触摸屏200的结构图。如图2所示，触摸屏200包括：第一基底210、电子元件220、缓冲结构230和发光层240。
发光层240是指触摸屏200中用于发光进而显示信息的部件，通常由发光二极管和其他电子元件构成，并且，设置有触摸感应电子元件220的第一基底210覆盖在发光层240的上方。在本申请实施例中，缓冲结构230设置在第一基底210与发光层240之间，其中，缓冲结构230由透明胶质构成。在制备缓冲结构230时，首先在第一基底210的下表面上设置一层胶质，之后通过转印的方式将胶质加工出凸起，形成缓冲结构230。
通过在第一基底210的下表面设置缓冲结构230，使得缓冲结构230的制备能够使用转印工艺，降低了工艺难度和制造成本。
图3是根据本申请再一示例性实施例示出的一种触摸屏300的结构图。如图3所示，触摸屏300包括：盖板310、光学胶层321、322和323、氧化硅第一基底331和332、聚酰亚胺第一基底341和342、电子元件350、缓冲结构360以及发光层370。
本申请实施例中，触摸屏300由三个功能层结构构成，处于最下方的功能层为发光层370，用于显示各种信息，通常情况下，发光层370由发光二极管以及相应的电子元件构成。发光层370与其上方的聚酰亚胺第一基底342之间通过光学胶323相连接，光学胶323具有很高的光线透过性，并且能将发光层370与聚酰亚胺第一基底342粘合。
本申请实施例中，位于聚酰亚胺第一基底342上表面的为中间功能层。中间功能层包括：氧化硅层332，氧化硅层332用于承载触摸感应电子元件。在氧化硅层332的上表面设置有缓冲结构360。缓冲结构360由多个具有弹性的胶质凸起构成，并且，凸起呈圆台状分布在触摸感应电子元件之间的间隙处。缓冲结构360中凸起的高度大于周围电子元件的高度，使得触摸屏300受到来自上方的冲击时，凸起会先于周边的电子元件受到冲击，进而产生变形，从而分散冲击力，保护电子元件以及发光层370。
氧化硅层332与聚酰亚胺层341之间通过光学胶322连接。光学胶322将缓冲结构360以及电子元件周围的空隙填充满，使得缓冲结构360以及电子元件周围没有气泡存在，提升了触摸屏300的品质。
位于最上方的功能层由氧化硅层331，电子元件350，以及光学胶321构成，最上方功能层除不具备缓冲结构360外，与中间功能层的结构相同，在此不再累述。
覆盖在最上方功能层上的为盖板310，盖板310通常由玻璃或塑料等材料制作而成，用于保护盖板下方的结构。
在本申请的一个实施例中，触摸屏300还包括：第二基底，缓冲结构位于所述第一基底与第二基底之间；或者，缓冲结构位于第一基底远离第二基底的一侧上。
通过本申请实施例所提供的技术方案，使得具有双层结构的触摸屏，能够在其中任意一层中设置缓冲结构，提升了双层结构触摸屏的抗冲击能力。
本申请的另一个实施例提供一种显示装置，包括：发光层；上述实施例中所述的触摸屏，其中触摸屏设置在发光层上。
图4是根据本申请一示例性实施例示出的一种显示装置400的示意性框图。如图所示，图4中显示装置400包括：机体410，发光层420和触摸屏430。
本申请实施例中，显示装置400的机体410用于承载或容纳各种电子器件，在机体410的上表面设置有发光层420，用于显示各种图像信息，发光层420上覆盖有上述实施例中任意一种触摸屏430，使得用户能够通过触摸的方式控制显示装置400。
通过在显示装置400上安装上述实施例中任意一种触摸屏430，使得发光层420能够在受到冲击时，该冲击力能够被触摸屏430中的缓冲结构分散缓冲，从而保护发光层420。
图5是根据本申请一示例性实施例示出的一种触摸屏的制备方法的流程图。上述触摸屏的制备方法包括如下步骤。
S510：提供第一基底。
S520：在第一基底上设置弹性物质层，其中，第一基底上设置有多个电子元件。
弹性物质层由具有弹性的胶构成，例如本申请实施例中，弹性物质层由光刻胶构成，在第一基底上设有多个电子元件，并且光刻胶将电子元件以及多个电子元件之间的空隙覆盖住。本申请的另一个实施例中，弹性物质层由硅胶构成，本申请实施例对于缓冲结构的具体组成成分不做限定。
S530：通过光刻或转印的方式将弹性物质层加工成缓冲结构，其中，缓冲结构具有凸起，以便缓冲结构受到冲击力时，通过凸起的变形将冲击力分散。
具体地，在本申请的一个实施例中，缓冲结构由光刻胶构成，并且，通过光刻的方式制备凸起。
首先，在第一基底上设置一层光刻胶，并且光刻胶将电子元件与第一基底的表面覆盖。之后，通过设置掩膜将光刻胶中待制备凸起的位置遮挡住，并将光刻胶的其余部分曝光并去除后，留下凸起，构成缓冲结构。
本申请实施例中，通过控制掩膜的图案形状，使得缓冲结构由多个分散的凸 起构成，凸起分布在电子元件之间的间隙处。本申请的另一个实施例中，通过控制掩膜的图案形状，使得凸起呈条状，分布在电子元件之间的间隙处，本申请实施例对凸起的具体形状和位置不做限定。
在本申请的另一个实施例中，缓冲结构由透明硅胶构成，并且，通过转印的方式制备凸起。
在本申请实施例中，第一基底的上表面设置有电子元件。首先，在第一基底的下表面涂覆一层透明硅胶层，再通过模具冲压该胶质层，从而制备出凸起，形成缓冲结构。通过控制转印工艺中所使用的模具的形状，使得凸起能够呈现分散分布的柱状或者条状，本申请实施例对于凸起的具体形状不做限定。
根据本申请实施例所提供的技术方案，通过在触摸屏的第一基底上设置具有凸起的弹性缓冲结构，当触摸屏受到冲击时，凸起可以产生变形，进而分散冲击力，从而起到保护设备的目的，并且工艺简单，良率影响小，组装后的屏体厚度不会有明显增加。
在本申请的一个实施例中，上述触摸屏的制备方法还包括：在缓冲结构上制备液体光学胶层，以密封缓冲结构。
液体光学胶是一种用于胶结透明光学元件(如镜头等)的特种胶粘剂。具有无色透明、光透过率在90％以上、胶结强度良好，可在室温或中温下固化，且有固化收缩小等特点。有机硅胶、丙烯酸型树脂及不饱和聚酯、聚氨酯、环氧树脂等胶粘剂都可胶结光学元件。本申请实施例中，将液体光学胶设置在缓冲结构上，以将缓冲结构包裹密封住。
通过液体光学胶将缓冲结构密封，使得具有缓冲结构的第一基底能够通过液体光学胶与其他部件粘合，并且液体光学胶填充了凸起周边的空隙，使得触摸屏中不会夹杂气体，提升了触摸屏的产品质量。
本领域技术人员在考虑说明书及实践这里的公开内容后，将容易想到本申请的其它实施方案。本申请旨在涵盖本申请的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本申请的一般性原理并包括本申请未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本申请的真正范围和精神由上面的权利要求指出。
应当理解的是，本申请并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本申请的范围仅由所附的权利要求来限制。

Claims (16)

  1. 一种触摸屏，包括：
    至少一个第一基底；
    缓冲结构，其中，所述缓冲结构位于所述至少一个第一基底上，所述缓冲结构具有至少一个凸起，所述至少一个凸起由弹性物质构成，以便所述缓冲结构受到冲击力时，通过所述至少一个凸起的变形将所述冲击力分散。
  2. 根据权利要求1所述的触摸屏，还包括：
    液体光学胶层，所述液体光学胶层设置在所述至少一个第一基底上，用于密封所述缓冲结构。
  3. 根据权利要求1所述的触摸屏，还包括：
    分散布置在所述至少一个第一基底上的多个电子元件，所述至少一个凸起位于所述多个电子元件中的相邻电子元件之间的间隙处，所述至少一个凸起的高度大于所述电子元件的高度。
  4. 根据权利要求3所述的触摸屏，其中，所述至少一个凸起的高度为所述电子元件高度的1.2～1.8倍。
  5. 根据权利要求4所述的触摸屏，其中，所述至少一个凸起的高度为所述电子元件高度的1.5倍。
  6. 根据权利要求1所述的触摸屏，还包括：
    设置在所述至少一个第一基底的上表面的多个电子元件，其中，所述缓冲结构设置在所述至少一个第一基底的下表面上。
  7. 根据权利要求3所述的触摸屏，其中，所述电子元件包括纳米银触摸感应电子元件。
  8. 根据权利要求1所述的触摸屏，还包括：
    第二基底，其中，所述缓冲结构位于所述至少一个第一基底与所述第二基底之间，或者，所述缓冲结构位于所述至少一个第一基底远离所述第二基底的一侧上。
  9. 根据权利要求1所述的触摸屏，其中，所述至少一个凸起的形状包括圆台状、圆柱状和半球状中的至少一个。
  10. 根据权利要求1所述的触摸屏，其中，所述至少一个第一基底包括氧化硅层和聚酰亚胺层贴合构成的复合层。
  11. 根据权利要求9所述的触摸屏，其中，所述至少一个凸起中形状为所述半球状的凸起与所述第一基底通过半球的圆形截面连接。
  12. 根据权利要求9所述的触摸屏，其中，所述至少一个凸起中形状为所 述圆台状的凸起的底面连接在所述第一基底上。
  13. 一种显示装置，包括：
    发光层；
    权利要求1所述的触摸屏，其中，所述触摸屏设置在所述发光层上。
  14. 根据权利要求13所述的显示装置，其中，缓冲结构位于至少一个第一基底与所述发光层之间。
  15. 一种触摸屏的制备方法，包括：
    提供第一基底；
    在所述第一基底上形成弹性物质层；
    通过光刻或转印的方式将所述弹性物质层加工成缓冲结构，其中，所述缓冲结构具有凸起，以便所述缓冲结构受到冲击力时，通过所述凸起的变形将所述冲击力分散。
  16. 根据权利要求15所述的触摸屏的制备方法，还包括：
    在所述缓冲结构上形成液体光学胶层，以密封所述缓冲结构。
PCT/CN2019/085138 2018-08-13 2019-04-30 触摸屏和显示装置及其制备方法 WO2020034667A1 (zh)

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