WO2016110020A1 - 触摸屏及其制备方法、触摸显示屏 - Google Patents

触摸屏及其制备方法、触摸显示屏 Download PDF

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Publication number
WO2016110020A1
WO2016110020A1 PCT/CN2015/076763 CN2015076763W WO2016110020A1 WO 2016110020 A1 WO2016110020 A1 WO 2016110020A1 CN 2015076763 W CN2015076763 W CN 2015076763W WO 2016110020 A1 WO2016110020 A1 WO 2016110020A1
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white
shielding layer
light
base substrate
agent
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PCT/CN2015/076763
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English (en)
French (fr)
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史文杰
胡明
谢涛峰
罗鸿强
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京东方科技集团股份有限公司
合肥鑫晟光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 合肥鑫晟光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US14/894,644 priority Critical patent/US20160364032A1/en
Priority to EP15794809.2A priority patent/EP3249501A4/en
Publication of WO2016110020A1 publication Critical patent/WO2016110020A1/zh

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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
    • 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

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  • Embodiments of the present invention relate to a touch screen, a method of fabricating the same, and a touch display screen.
  • the white one-touch (OGS) touch screen realizes a white visual effect by forming a white light-shielding layer in the frame area of the OGS touch screen by photolithography white photoresist or silk screen white ink.
  • multiple high-temperature processes such as ITO coating and lithography organic lithography materials (such as overlay) are required.
  • the white shading layer of the white OGS touch screen may cause yellowing of the white photoresist or the organic resin in the ink after a plurality of high-temperature processes, that is, the white shading layer of the border area of the white OGS touch screen is yellowed.
  • the white border of the border of the touch display screen is visually yellowish, resulting in poor product.
  • At least one embodiment of the present invention provides a touch screen, a method for fabricating the same, and a touch display screen to avoid the problem that the white border of the prepared touch screen is yellowed after being subjected to multiple high temperature processes.
  • At least one embodiment of the present invention provides a touch screen including a light transmissive area and a bezel area surrounding the light transmissive area, wherein the base substrate of the light transmissive area is provided with a touch function layer, and the lining of the bezel area
  • a white light shielding layer is disposed on the base substrate, and the white light shielding layer is doped with a fluorescent agent capable of absorbing ultraviolet light and emitting blue light.
  • the fluorescent agent can absorb the invisible ultraviolet light and emit blue visible light, and the white light shielding layer originally reflects the yellow color. The light complements to form white light.
  • the fluorescent agent is any one of a stilbene-based fluorescent whitening agent, a coumarin-type fluorescent whitening agent, and a naphthalimide-based fluorescent whitening agent.
  • the fluorescer is capable of absorbing visible ultraviolet light and emitting blue visible light.
  • a black light shielding layer is disposed on the white light shielding layer.
  • the optical density of the touch screen in the frame area is improved by providing the black light shielding layer.
  • the composite layer composed of the white light shielding layer and the black light shielding layer has a large optical density value At 4, the optical density value is represented by a decimal logarithm of the transmittance.
  • the optical density value of the composite layer formed by the white light shielding layer and the black light shielding layer is greater than 4, and the light shielding performance can be ensured.
  • At least one embodiment of the present invention provides a touch display screen, including the touch screen provided in the above embodiment.
  • At least one embodiment of the present invention provides a method of fabricating a touch panel, comprising: forming a white light shielding layer in a frame region of a base substrate, the white light shielding layer being doped with a fluorescent agent, the fluorescent agent capable of absorbing ultraviolet light and emitting Blue light; forming a touch function layer in the light transmissive region of the base substrate.
  • the forming a white light shielding layer in the frame region of the base substrate includes: providing a white photoresist, the fluorescent agent is added to the white photoresist; and the white photoresist is used on the substrate A white photoresist film is formed on the substrate, and the white photoresist film is formed by the photolithography process to form the white light shielding layer on the substrate of the frame region.
  • the percentage of the mass of the fluorescer added to the total mass of the white photoresist and the fluorescer is 1 ⁇ -5 Torr.
  • forming a white light-shielding layer doped with a fluorescent agent in a frame region of the base substrate includes: providing a white ink to which the fluorescent agent is added; and using the white ink to pass the silk screen process to the border
  • the white light shielding layer is formed on the base substrate of the region.
  • the percentage of the added fluorescent agent and the total mass of the white ink and the fluorescent agent is 1 ⁇ -5 ⁇ .
  • the fluorescent agent is any one of a stilbene-based fluorescent whitening agent, a coumarin-type fluorescent whitening agent, and a naphthalimide-based fluorescent whitening agent.
  • FIG. 1A is a schematic diagram of a touch screen according to an embodiment of the present invention.
  • FIG. 1B is a schematic diagram of a portion of a touch screen in a frame area according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for preparing a touch screen according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for preparing a first touch screen according to an embodiment of the present invention
  • FIG. 4 is a flowchart of a method for preparing a second touch screen according to an embodiment of the present invention.
  • the OGS touch screen 100 includes a light transmitting area 102 and a frame area 101 surrounding the light transmitting area.
  • the base substrate of the light transmitting area 102 is provided with a touch function.
  • the layer 103 has a white light shielding layer disposed on the base substrate of the frame region 101, and the white light shielding layer is doped with a fluorescent agent capable of absorbing ultraviolet light and emitting blue light.
  • the touch function layer 103 includes, for example, a touch driving line and a touch sensing line that cross each other, or an array including touch electrode units.
  • the ultraviolet light is invisible short-wave light in the ambient light source
  • the white OGS touch screen is used in a normal environment
  • the light emitted by the sunlight and the ordinary fluorescent lamp has invisible short-wave light.
  • Fluorescent agents can achieve a transition of electron energy by absorbing invisible short-wave light. When the energy is released again, relatively long visible light is emitted, which is mainly distributed in the blue-violet light interval.
  • the visible light of the blue light emitted by the fluorescing agent can be mixed with yellow light to some extent to form white light, and the white border of the OGS touch screen is visually closer to white.
  • the fluorescent agent is any one of a stilbene-based fluorescent whitening agent, a coumarin-type fluorescent whitening agent, and a naphthalimide-based fluorescent whitening agent.
  • a stilbene fluorescent whitening agent as an example, 1,4-bis(o-cyanostyryl)benzene, 1,4-bis(p-cyanostyryl)benzene, (1-o-cyano) Styryl, 4-p-cyanostyryl)benzene.
  • the fluorescer absorbs invisible ultraviolet light and emits blue visible light, and the blue visible light neutralizes yellow light.
  • a black light shielding layer is disposed over the white light shielding layer.
  • the optical density of the OGS touch screen in the frame area can be improved.
  • the composite layer of the white light-shielding layer and the black light-shielding layer has an optical density value greater than 4, and the optical density value is represented by a decimal logarithm of the transmittance.
  • the composite layer composed of the white light-shielding layer and the black light-shielding layer has an optical density value of more than 4, and the light-shielding property can be ensured.
  • FIG. 1B is a partial schematic view of the OGS touch screen 1 in the frame area.
  • the OGS touch screen 1 includes a base substrate 2, a white light-shielding layer 3 and a black light-shielding layer 4 in the frame region.
  • the visible light 11 and the ultraviolet light 12 are incident on the frame region of the OGS touch screen 1, and the incident visible light 11 is passed through the white light-shielding layer 3 and then is black-shielded. 4 reflects, emits visible light 111, and the visible light 111 is yellowish.
  • the incident ultraviolet light 12 is absorbed by the fluorescent agent (not shown)
  • the blue visible light 121 is reflected by the black light shielding layer 4, and the mixed visible light 13 after the blue visible light 121 and the visible light 111 are mixed is close to white.
  • the beneficial effects of the embodiments of the present invention are as follows: by adding a fluorescent agent to the white light shielding layer to adjust the chromaticity of the white light shielding layer, the fluorescent agent can absorb the invisible ultraviolet light and emit blue visible light, and the white light shielding layer originally reflects The yellow light complements the white light to improve the visual yellowing of the white border of the OGS touch screen display and improve product yield.
  • At least one embodiment of the present invention provides an OGS touch display screen, including the OGS touch screen provided in the above embodiment.
  • the beneficial effects of the embodiments of the present invention are as follows: by adding a fluorescent agent to the white light shielding layer to adjust the chromaticity of the white light shielding layer, the fluorescent agent can absorb the invisible ultraviolet light and emit blue visible light, and the white light shielding layer originally reflects The yellow light complements the white light to improve the visual yellowing of the white border of the OGS touch screen display and improve product yield.
  • At least one embodiment of the present invention provides a method for preparing an OGS touch screen, including:
  • a white light shielding layer in the frame region of the base substrate, and the white light shielding layer is doped with a fluorescent agent capable of absorbing ultraviolet light and emitting blue light.
  • the beneficial effects of the embodiments of the present invention are as follows: by adding a fluorescent agent to the white light shielding layer to adjust the chromaticity of the white light shielding layer, the fluorescent agent can absorb the invisible ultraviolet light and emit blue visible light, and the white light shielding layer originally reflects The yellow light complements the white light to improve the visual yellowing of the white border of the OGS touch screen display and improve product yield.
  • the embodiment of the present invention can prepare a white light-shielding layer doped with a fluorescent agent by using different materials and processes, thereby realizing the preparation of the OGS touch screen.
  • the details are as follows:
  • a method for preparing a first specific OGS touch screen including:
  • Adding a fluorescent agent to the white photoresist, and uniformly dispersing the fluorescent agent in the white photoresist by a stirring process for example, the quality of the added fluorescer and the white photoresist and the fluorescent
  • the ratio of the total mass of the agent is 1 ⁇ -5 ⁇ .
  • the fluorescent agent is any one of a stilbene-based fluorescent whitening agent, a coumarin-type fluorescent whitening agent, and a naphthalimide-based fluorescent whitening agent.
  • the composite layer of the black light-shielding layer and the white light-shielding layer has an optical density value greater than 4, and the optical density value is represented by a decimal logarithm of the transmittance.
  • the beneficial effects of the embodiments of the present invention are as follows: by adding a fluorescent agent to a white photoresist and preparing a white light shielding layer to adjust the chromaticity of the white light shielding layer, the fluorescent agent can absorb the invisible ultraviolet light and emit blue visible light. Complementing the yellow light originally reflected by the white shading layer to form white light, thereby improving the visual yellowing of the white border of the frame of the OGS touch display screen and improving the product yield.
  • a second specific OGS touch screen preparation method including:
  • a fluorescent agent to the white ink, and uniformly disperse the fluorescent agent in the white ink by a stirring process.
  • the percentage of the added fluorescent agent and the total mass of the white ink and the fluorescent agent is 1 ⁇ -5 ⁇ .
  • the fluorescent agent is any one of a stilbene-based fluorescent whitening agent, a coumarin-type fluorescent whitening agent, and a naphthalimide-based fluorescent whitening agent.
  • a white light shielding layer is formed on the substrate of the frame region by a silk screen process.
  • the composite layer of the black light-shielding layer and the white light-shielding layer has an optical density value greater than 4, and the optical density value is represented by a decimal logarithm of the transmittance.
  • the beneficial effects of the embodiments of the present invention are as follows: by adding a fluorescent agent to the white ink and preparing a white light shielding layer to adjust the chromaticity of the white light shielding layer, the fluorescent agent can absorb the invisible ultraviolet light and emit blue visible light, and white The yellow light originally reflected by the light shielding layer complements to form white light, thereby improving the visual yellowing of the white border of the frame of the OGS touch display screen and improving the product yield.
  • OGS touch screen As an example, the embodiment of the present invention Not limited to OGS touch screens, it can also be used for other types of touch panels or touch screens that require a white bezel area, such as an in-cell or on-cell touch panel or touch screen.

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Abstract

一种触摸屏及其制备方法、触摸显示屏，以避免制备的触摸屏的白色边框由于多次高温制程后黄化的问题。所述触摸屏包括透光区(102)和包围所述透光区(102)的边框区(101)，所述透光区(102)的衬底基板上设置有触摸功能层(103)，所述边框区(101)的所述衬底基板上设置有白色遮光层(3)，所述白色遮光层(3)内掺杂有荧光剂，所述荧光剂能够吸收紫外光并发射蓝色光。

Description

触摸屏及其制备方法、触摸显示屏 技术领域
本发明的实施例涉及一种触摸屏及其制备方法、触摸显示屏。
背景技术
白色的一体式触控(One Glass Solution，OGS)的触控屏通过光刻白色光阻(photoresist)或者丝印白色油墨，在OGS触摸屏的边框区形成白色遮光层来实现白色视觉效果。在OGS触控屏的制备过程中，需要多道高温制程，例如ITO镀膜及光刻有机光刻材料(例如覆盖层)等制程。白色OGS触控屏的白色遮光层在经过多道高温制程后，可能导致白色光阻或者油墨中的有机树脂发生黄化，即白色OGS触控屏的边框区的白色遮光层发生黄化，这使得触摸显示屏的边框的白色边框在视觉上偏黄，造成产品不良。
发明内容
本发明的至少一实施例提供一种触摸屏及其制备方法、触摸显示屏，以避免制备的触摸屏的白色边框由于经过多次高温制程后黄化的问题。
本发明至少一实施例提供一种触摸屏，包括透光区和包围所述透光区的边框区，所述透光区的衬底基板上设置有触摸功能层，所述边框区的所述衬底基板上设置有白色遮光层，所述白色遮光层内掺杂有荧光剂，所述荧光剂能够吸收紫外光并发射蓝色光。本发明实施例中，通过在白色遮光层中添加荧光剂，以调节白色遮光层的色度，荧光剂可以吸收不可见的紫外光后发射出蓝色的可见光，与白色遮光层原本反射的黄色光互补形成白光。
例如，所述荧光剂为二苯乙烯类荧光增白剂、香豆素型荧光增白剂和萘酰亚胺类荧光增白剂中的任意一种。本发明实施例中，所述荧光剂能够吸收不可见的紫外光后发射出蓝色的可见光。
例如，所述白色遮光层之上设置有黑色遮光层。本发明实施例中，通过设置所述黑色遮光层，提高触摸屏在边框区的光学密度。
例如，所述白色遮光层和所述黑色遮光层构成的复合层的光学密度值大 于4，所述光学密度值由透射率的十进对数表示。本发明实施例中，所述白色遮光层和所述黑色遮光层构成的复合层的光学密度值大于4，可以确保遮光性能。
本发明至少一实施例提供一种触摸显示屏，包括如上实施例提供的所述触摸屏。
本发明至少一实施例提供一种触摸屏的制备方法，包括：在衬底基板的边框区内形成白色遮光层，所述白色遮光层掺杂有荧光剂，所述荧光剂能够吸收紫外光并发射蓝色光；在所述衬底基板的透光区内形成触摸功能层。
例如，所述在衬底基板的边框区内形成白色遮光层，包括：提供白色光阻剂，在白色光阻剂中添加有所述荧光剂；利用所述白色光阻剂在所述衬底基板上形成白色光阻薄膜，通过光刻工艺使所述白色光阻薄膜形成位于所述边框区的所述衬底基板上的所述白色遮光层。
例如，添加的所述荧光剂的质量与所述白色光阻剂和所述荧光剂的总质量的百分比为1‰-5‰。
例如，在衬底基板的边框区内形成掺杂荧光剂的白色遮光层，包括：提供白色油墨，在白色油墨中添加有所述荧光剂；利用所述白色油墨，通过丝印工艺在所述边框区的所述衬底基板上的形成所述白色遮光层。
例如，添加的所述荧光剂的质量与所述白色油墨和所述荧光剂的总质量的百分比为1‰-5‰。
例如，所述荧光剂为二苯乙烯类荧光增白剂、香豆素型荧光增白剂和萘酰亚胺类荧光增白剂中的任意一种。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本发明的一些实施例，而非对本发明的限制。
图1A为本发明实施例提供的触摸屏的示意图；
图1B为本发明实施例提供的触摸屏在边框区的部分示意图；
图2为本发明实施例提供的一种触摸屏的制备方法的流程图；
图3为本发明实施例的第一种触摸屏的制备方法的流程图；
图4为本发明实施例的第二种触摸屏的制备方法的流程图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例的附图，对本发明实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，本领域普通技术人员在无需创造性劳动的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。
本发明至少一实施例提供一种OGS触摸屏，如图1A所示，该OGS触摸屏100包括透光区102和包围透光区的边框区101，透光区102的衬底基板上设置有触摸功能层103，边框区101的衬底基板上设置有白色遮光层，白色遮光层内掺杂有荧光剂，所述荧光剂能够吸收紫外光并发射蓝色光。该触摸功能层103例如包括彼此交叉的触控驱动线和触控感应线，或者包括触控电极单元的阵列。
需要说明的是，紫外光是涵盖环境光源中的不可见短波光，白色OGS触摸屏是在正常的环境下使用，太阳光和普通的荧光灯所发出的光都存在不可见短波光。荧光剂会通过吸收不可见的短波光实现电子能量的跃迁，当能量重新释放出来时会发出相对较长的可见光，该可见光主要分布在蓝紫光区间。荧光剂发出的蓝光的可见光能一定程度地与黄色光混合以形成白光，OGS触摸屏的白色边框在视觉上更接近于白色。
本发明至少一实施例中，例如，荧光剂为二苯乙烯类荧光增白剂、香豆素型荧光增白剂和萘酰亚胺类荧光增白剂中的任意一种。以二苯乙烯类荧光增白剂为例，可以选用1,4-双(邻氰基苯乙烯基)苯、1,4-双(对氰基苯乙烯基)苯、(1-邻氰基苯乙烯基，4-对氰基苯乙烯基)苯。荧光剂能够吸收不可见的紫外光后发射出蓝色的可见光，蓝色的可见光可以中和黄色光。
本发明至少一实施例中，例如，白色遮光层之上设置有黑色遮光层。通过设置黑色遮光层，能够提高OGS触摸屏在边框区的光学密度。
本发明至少一实施例中，例如，白色遮光层和黑色遮光层构成的复合层的光学密度值大于4，所述光学密度值由透射率的十进对数表示。白色遮光层和黑色遮光层构成的复合层的光学密度值大于4，可以确保遮光性能。
为了更清楚地对本实施例的原理进行说明，以附图1B为例进行说明。附图1为OGS触摸屏1在边框区的部分示意图。OGS触摸屏1在边框区包括衬底基板2、白色遮光层3和黑色遮光层4，可见光11和紫外光12入射OGS触摸屏1的边框区，入射的可见光11经白色遮光层3后被黑色遮光层4反射，出射可见光111，该可见光111偏黄。入射的紫外光12被荧光剂(未示出)吸收后，产生蓝色的可见光121被黑色遮光层4反射，蓝色的可见光121与可见光111混合后的混合出射光13接近于白色。
本发明实施例有益效果如下：通过在白色遮光层中添加荧光剂，以调节白色遮光层的色度，荧光剂可以吸收不可见的紫外光后发射出蓝色的可见光，与白色遮光层原本反射的黄色光互补形成白光，以此改善OGS触摸显示屏的边框的白色边框在视觉上偏黄的现象，提高产品良率。
本发明至少一实施例提供一种OGS触摸显示屏，包括如上实施例提供的所述OGS触摸屏。
本发明实施例有益效果如下：通过在白色遮光层中添加荧光剂，以调节白色遮光层的色度，荧光剂可以吸收不可见的紫外光后发射出蓝色的可见光，与白色遮光层原本反射的黄色光互补形成白光，以此改善OGS触摸显示屏的边框的白色边框在视觉上偏黄的现象，提高产品良率。
参见图2，本发明至少一实施例提供一种OGS触摸屏的制备方法，包括：
201、在衬底基板的边框区内形成白色遮光层，白色遮光层掺杂有荧光剂，所述荧光剂能够吸收紫外光并发射蓝色光。
202、在衬底基板的透光区内形成触摸功能层。
本发明实施例有益效果如下：通过在白色遮光层中添加荧光剂，以调节白色遮光层的色度，荧光剂可以吸收不可见的紫外光后发射出蓝色的可见光，与白色遮光层原本反射的黄色光互补形成白光，以此改善OGS触摸显示屏的边框的白色边框在视觉上偏黄的现象，提高产品良率。
需要说明的是，本发明的实施例可以采用不同的材料和工艺制备掺杂有荧光剂的白色遮光层，从而实现OGS触摸屏的制备。详细说明如下：
参见图3，提供第一种具体的OGS触摸屏的制备方法，包括：
301、在白色光阻剂中添加荧光剂，通过搅拌工艺使荧光剂均匀分散于白色光阻剂中。例如，添加的所述荧光剂的质量与所述白色光阻剂和所述荧光 剂的总质量的比为1‰-5‰。
本发明至少一实施例中，例如，荧光剂为二苯乙烯类荧光增白剂、香豆素型荧光增白剂和萘酰亚胺类荧光增白剂中的任意一种。
302、利用白色光阻剂在衬底基板上形成白色光阻薄膜，通过光刻工艺使白色光阻薄膜形成位于边框区的衬底基板上的白色遮光层。
303、在白色遮光层之上形成黑色遮光层。
本发明至少一实施例中，黑色遮光层与白色遮光层构成的复合层的光学密度值大于4，所述光学密度值由透射率的十进对数表示。
304、在衬底基板的透光区内形成触摸功能层。
本发明实施例有益效果如下：通过在白色光阻剂中添加荧光剂并制备白色遮光层，以调节白色遮光层的色度，荧光剂可以吸收不可见的紫外光后发射出蓝色的可见光，与白色遮光层原本反射的黄色光互补形成白光，以此改善OGS触摸显示屏的边框的白色边框在视觉上偏黄的现象，提高产品良率。
参见图4，提供第二种具体的OGS触摸屏的制备方法，包括：
401、在白色油墨中添加荧光剂，通过搅拌工艺使荧光剂均匀分散于白色油墨中。例如，添加的所述荧光剂的质量与所述白色油墨和所述荧光剂的总质量的百分比为1‰-5‰。
本发明至少一实施例中，例如，荧光剂为二苯乙烯类荧光增白剂、香豆素型荧光增白剂和萘酰亚胺类荧光增白剂中的任意一种。
402、利用白色油墨，通过丝印工艺在边框区的衬底基板上的形成白色遮光层。
403、在白色遮光层之上形成黑色遮光层。
本发明至少一实施例中，例如，黑色遮光层与白色遮光层构成的复合层的光学密度值大于4，所述光学密度值由透射率的十进对数表示。
404、在衬底基板的透光区内形成触摸功能层。
本发明实施例有益效果如下：通过在白色油墨中添加荧光剂并制备白色遮光层，以调节白色遮光层的色度，荧光剂可以吸收不可见的紫外光后发射出蓝色的可见光，与白色遮光层原本反射的黄色光互补形成白光，以此改善OGS触摸显示屏的边框的白色边框在视觉上偏黄的现象，提高产品良率。
虽然上述实施例以OGS触摸屏为例进行了说明，但是本发明的实施例 不限于OGS触摸屏，也可以用于其它类型的需要白色边框区域的触摸面板或触摸屏，例如内嵌式(in-cell)或外敷式(on-cell)触摸面板或触摸屏。
以上所述仅是本发明的示范性实施方式，而非用于限制本发明的保护范围，本发明的保护范围由所附的权利要求确定。
本申请要求于2015年1月8日递交的中国专利申请第201510009696.9号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (11)

  1. 一种触摸屏，包括透光区和包围所述透光区的边框区，所述透光区的衬底基板上设置有触摸功能层，
    其中，所述边框区的所述衬底基板上设置有白色遮光层，所述白色遮光层内掺杂有荧光剂，所述荧光剂能够吸收紫外光并发射蓝色光。
  2. 如权利要求1所述的触摸屏，其中，所述荧光剂为二苯乙烯类荧光增白剂、香豆素型荧光增白剂和萘酰亚胺类荧光增白剂中的任意一种。
  3. 如权利要求1或2所述的触摸屏，其中，所述白色遮光层之上设置有黑色遮光层。
  4. 如权利要求3所述的触摸屏，其中，所述白色遮光层和所述黑色遮光层构成的复合层的光学密度值大于4，所述光学密度值由透射率的十进对数表示。
  5. 一种触摸显示屏，包括如权利要求1至4任一项所述的触摸屏。
  6. 一种触摸屏的制备方法，包括：
    在衬底基板的边框区内形成白色遮光层，所述白色遮光层掺杂有荧光剂，所述荧光剂能够吸收紫外光并发射蓝色光；
    在所述衬底基板的透光区内形成触摸功能层。
  7. 如权利要求6所述的方法，其中，所述在衬底基板的边框区内形成白色遮光层，包括：
    提供白色光阻剂，在所述白色光阻剂中添加有所述荧光剂；
    利用所述白色光阻剂在所述衬底基板上形成白色光阻薄膜，通过光刻工艺使所述白色光阻薄膜形成位于所述边框区的所述衬底基板上的所述白色遮光层。
  8. 如权利要求7所述的方法，其中，添加的所述荧光剂的质量与所述白色光阻剂和所述荧光剂的总质量的比为1‰-5‰。
  9. 如权利要求6所述的方法，其中，在衬底基板的边框区内形成掺杂荧光剂的白色遮光层，包括：
    提供白色油墨，在所述白色油墨中添加有所述荧光剂；
    利用所述白色油墨，通过丝印工艺在所述边框区的所述衬底基板上的形 成所述白色遮光层。
  10. 如权利要求9所述的方法，其中，添加的所述荧光剂的质量与所述白色油墨和所述荧光剂的总质量的比为1‰-5‰。
  11. 如权利要求6至10中任一项所述的方法，其中，所述荧光剂为二苯乙烯类荧光增白剂、香豆素型荧光增白剂和萘酰亚胺类荧光增白剂中的任意一种。
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