CN109164940B - 触控显示装置及其制造方法 - Google Patents

触控显示装置及其制造方法 Download PDF

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CN109164940B
CN109164940B CN201811167625.1A CN201811167625A CN109164940B CN 109164940 B CN109164940 B CN 109164940B CN 201811167625 A CN201811167625 A CN 201811167625A CN 109164940 B CN109164940 B CN 109164940B
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electrode layer
openings
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CN109164940A (zh
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陈右儒
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Interface Optoelectronics Shenzhen Co Ltd
Interface Technology Chengdu Co Ltd
General Interface Solution Ltd
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Interface Optoelectronics Shenzhen Co Ltd
Interface Technology Chengdu Co Ltd
General Interface Solution Ltd
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Abstract

一种触控显示装置,包括基板、遮光阵列、多个发光元件、彩色滤光片及触控模组。遮光阵列设置于基板上,且遮光阵列具有多个开口。各发光元件设置于一个开口中。彩色滤光片设置于遮光阵列之上。触控模组包括设置于遮光阵列与彩色滤光片之间的下电极层,以及设置于彩色滤光片之上的上电极层。在此揭露的触控显示装置整体较轻薄,符合薄型化趋势。此外,彩色滤光片可过滤掉装置外部射入的环境光,避免彩晕现象的产生。

Description

触控显示装置及其制造方法
技术领域
本揭示内容系关于一种触控显示装置,以及关于一种触控显示装置的制造方法。
背景技术
在传统的电容式触控显示装置中,触控模组的上、下触控电极层形成于一透明基板的两侧,并且此触控模组与诸如微型发光二极管显示器之显示装置、偏振片及盖板贴合以形成电容式触控显示装置。
然而,传统的电容式触控显示装置的厚度大,不符合薄型化趋势。此外,若显示装置中掺杂有荧光粉体或量子点材料,从装置外部射入的环境光可能激发荧光粉体或量子点材料,从而产生彩晕(mura)现象。
发明内容
本揭示内容的一态样系提供一种触控显示装置,包括基板、遮光阵列、多个发光元件、彩色滤光片及触控模组。遮光阵列设置于基板上,且遮光阵列具有多个开口。各发光元件设置于一个开口中。彩色滤光片设置于遮光阵列之上。触控模组包括设置于遮光阵列与彩色滤光片之间的下电极层,以及设置于彩色滤光片之上的上电极层。
在本揭示内容的一实施方式中,触控显示装置进一步包括胶层。胶层填充各开口,并覆盖各发光元件。胶层的上表面与遮光阵列的上表面共平面。
在本揭示内容的一实施方式中,胶层掺杂有多个光散射粒子。
在本揭示内容的一实施方式中,胶层掺杂有荧光粉体或量子点材料。
在本揭示内容的一实施方式中,多个发光元件为微型发光二极管。
在本揭示内容的一实施方式中,彩色滤光片具有沿着第一方向排列的多个滤光部分,上电极层及下电极层中之一者具有沿着第一方向延伸的多个第一电极,且多个第一电极横跨多个滤光部分。
在本揭示内容的一实施方式中,上电极层及下电极层中之另一者具有沿着垂直于第一方向的第二方向延伸的多个第二电极,其中多个第二电极与多个滤光部分重叠。
本揭示内容的另一态样系提供一种一种触控显示装置的制造方法,包括:提供一前驱结构,其中前驱结构包括:基板;遮光阵列,设置于基板上,其中遮光阵列具有多个开口;以及多个发光元件,设置于多个开口中;形成一触控模组的一下电极层于遮光阵列之上;设置一彩色滤光片于控模组的下电极层上;以及形成触控模组的一上电极层于彩色滤光片上。
在本揭示内容的一实施方式中,在形成触控模组的下电极层之前,还包括:形成一胶层于多个开口中。
在本揭示内容的一实施方式中,提供前驱结构包括:通过巨量转移将多个发光元件设置于基板上;以及形成遮光阵列于基板上,其中遮光阵列具有多个开口,且开口暴露出多个发光元件。
以下将以实施方式对上述之说明作详细的描述,并对本揭示内容的技术方案提供更进一步的解释。
附图说明
图1为本揭示内容一实施方式之触控显示装置的剖面示意图。
图2A为本揭示内容一实施方式之彩色滤光片及触控模组的仰视示意图。
图2B为本揭示内容另一实施方式之彩色滤光片及触控模组的仰视示意图。
图3A~图7A为本揭示内容一实施方式之触控显示装置的制造方法的各个阶段的剖面示意图。
图3B~图7B为分别对应图3A~图7A的俯视示意图。
附图标记:
10触控显示装置 10a前驱结构
100基板 200遮光阵列
200a、200b、200c开口 300、310、320、330发光元件
400胶层 410、420、430部分
500彩色滤光片 510、520、530滤光部分
600触控模组 610下电极层
611第一电极 612第一连接件
620上电极层 621第二电极
622第二连接件 R、G、B次画素区
D1、D2方向 H1、H2高度
T1、T2厚度 W1、W2宽度
具体实施方式
为了使本揭示内容的叙述更加详尽与完备,下文针对了本揭示内容的实施态样与具体实施例提出了说明性的描述;但这并非实施或运用本揭示内容具体实施例的唯一形式。以下所揭露的各实施例,在有益的情形下可相互组合或取代,也可在一实施例中附加其他的实施例,而无须进一步的记载或说明。在以下描述中,将详细叙述许多特定细节以使读者能够充分理解以下的实施例。然而,可在无此等特定细节之情况下实践本揭示内容的实施例。
再者,空间相对用语,例如「下方」、「之下」、「上方」、「之上」等,这是为了便于叙述一元件或特征与另一元件或特征之间的相对关系。这些空间上的相对用语的真实意义包含其他的方位。例如,当图式上下翻转180度时,一元件与另一元件之间的关系,可能从「下方」、「之下」变成「上方」、「之上」。此外,本文中所使用的空间上的相对叙述也应作同样的解释。
图1绘示本揭示内容一实施方式之触控显示装置10的剖面示意图。请参照图1,触控显示装置10包括基板100、遮光阵列200、多个发光元件300、胶层400、彩色滤光片500及触控模组600。
在一实施方式中,基板100为硅基板或包含薄膜晶体管的玻璃基板,但不以此为限。
遮光阵列200设置于基板100上。遮光阵列200具有多个开口200a、200b及200c。开口200a、200b及200c分别定义出次画素区R、G、B。在一实施方式中,遮光阵列200的多个开口200a、200b及200c的俯视轮廓为矩形,并且各开口200a、200b及200c之间彼此对齐排列,但开口200a、200b及200c的形状及排列关系并不以此为限。在一实施方式中,遮光阵列200的高度H1为1~5微米,例如2微米、3微米或4微米。
在一些实施例中,遮光阵列200包括有遮光材料之树脂,但不以此为限。于一实施例中,遮光材料例如是碳微粒子、无机颜料、有机颜料等。树脂例如是丁醛树脂、氯化聚乙烯、聚氯乙烯、聚胺基甲酸酯系树脂、酚树脂、聚酯树脂、丙烯酸系树脂、醇酸树脂、苯乙烯树脂、聚酰胺树脂、橡胶系树脂、环氧树脂、聚酰亚胺树脂等。包括有遮光材料之树脂具有不透光特性,因此遮光阵列200亦具有不透光特性。
如图1所示,发光元件300包括第一发光元件310、第二发光元件320及第三发光元件330。第一发光元件310、第二发光元件320及第三发光元件330分别设置于开口200a、200b及200c中。第一发光元件310、第二发光元件320及第三发光元件330的上表面低于遮光阵列200的上表面。在一实施方式中,第一发光元件310、第二发光元件320及第三发光元件330的高度H2为1~4微米,例如2微米或3微米。
胶层400包括第一部分410、第二部分420及第三部分430。第一部分410、第二部分420及第三部分430分别填充开口200a、200b及200c,并且分别覆盖第一发光元件310、第二发光元件320及第三发光元件330。胶层400的上表面与遮光阵列200的上表面共平面。
在一实施方式中,胶层400掺杂有多个光散射粒子。藉由掺杂光散射粒子于胶层400中,可增加装置运作时所发射的光之光程(optical length)。在一些实施例中,光散射粒子包括树脂或无机材料。树脂例如为聚砜、聚酰亚胺、聚丙烯酸酯、聚苯乙烯或上述之组合。无机材料例如为二氧化硅、二氧化钛或上述之组合。在一些实施例中,光散射粒子之粒径为0.1至6微米,例如为0.3微米、0.5微米、1微米、2微米、3微米、4微米或5微米。所谓「粒径」是指相当球径,即具有与颗粒同体积之圆球直径,具体上是指经雷射绕射/散射法所测量之粒径。若光散射粒子之粒径大于6微米时,可能会影响被掺杂层的透光度,但当光散射粒子之粒径小于0.1微米时,光散射粒子可能会团聚而无法有效分散。
在一实施方式中,第一发光元件310、第二发光元件320及第三发光元件330为微型发光二极管(micro-LED),且第一发光元件310、第二发光元件320及第三发光元件330可分别发射红光、绿光及蓝光,但不以此为限。举例来说,可发射红光的第一发光元件310系使用诸如磷化镓(GaP)、砷化铝镓(AlGaAs)或磷砷化镓(GaAsP)之半导体来制造。可发射绿光的第二发光元件320系使用诸如氮化铟(InN)或氮化铟镓(InGaN)之氮化物半导体来制造。可发射蓝光的第三发光元件330系使用诸如氮化铝(AlN)或氮化镓(GaN)之氮化物半导体来制造。
在另一实施方式中,第一发光元件310、第二发光元件320及第三发光元件330皆发射蓝光,且胶层400的第一部分410及第二部分420掺杂有荧光粉体或量子点材料。举例来说,可发射蓝光的第一发光元件310、第二发光元件320及第三发光元件330皆系使用诸如氮化铝(AlN)或氮化镓(GaN)之氮化物半导体来制造。
胶层400的第一部分410掺杂有红色荧光粉体或量子点材料,而胶层400的第二部分420掺杂有绿色荧光粉体或量子点材料。据此,第一发光元件310发射的蓝光可通过红色荧光粉体或量子点材料转换成红光,且第二发光元件320发射的蓝光可通过绿色荧光粉体或量子点材料转换成绿光。关于红色荧光粉体或量子点材料可以是可将蓝光转换成红光的荧光粉体或量子点材料,且绿色荧光粉体或量子点材料可以是可将蓝光转换成绿色的荧光粉体或量子点材料。
彩色滤光片500设置于遮光阵列200之上。彩色滤光片500具有第一滤光部分510、第二滤光部分520及第三滤光部分530。第一滤光部分510、第二滤光部分520及第三滤光部分530分别对应于开口200a、200b及200c。第一滤光部分510、第二滤光部分520及第三滤光部分530分别与次画素区R、G、B重叠。
在一实施方式中,第一滤光部分510、第二滤光部分520及第三滤光部分530包括具有着色剂之树脂,但不以此为限。着色剂例如是各色(如红色、绿色或蓝色等)无机颜料、有机颜料等。树脂例如是丁醛树脂、氯化聚乙烯、聚氯乙烯、聚胺基甲酸酯系树脂、酚树脂、聚酯树脂、丙烯酸系树脂、醇酸树脂、苯乙烯树脂、聚酰胺树脂、橡胶系树脂、环氧树脂、聚酰亚胺树脂等。
在一实施方式中,第一滤光部分510、第二滤光部分520及第三滤光部分530可分别由具有红色颜料之树脂、具有绿色颜料之树脂、以及具有蓝色颜料之树脂所组成。具有着色剂之树脂具有只允许特定波长的光透射之特性,因此由其所组成之第一滤光部分510、第二滤光部分520及第三滤光部分530亦具有相同之特性,从而达到滤光的效果。举例来说,第一滤光部分510、第二滤光部分520及第三滤光部分530分别由具有红色颜料之树脂、具有绿色颜料之树脂、以及具有蓝色颜料之树脂所组成,因此只有红色波长的光能透射过第一滤光部分510,绿色波长的光能透射过第二滤光部分520,以及蓝色波长的光能透射过第三滤光部分530。据此,第一滤光部分510、第二滤光部分520及第三滤光部分530分别过滤掉从开口200a、200b及200c中射出的不期望波长的光,从而使通过第一滤光部分510、第二滤光部分520及第三滤光部分530的光仅具有特定波长范围,达到纯正的光色。
在某些实施方式中,胶层400掺杂有荧光粉体或量子点材料。可通过彩色滤光片500的设置,过滤掉装置外部射入的环境光,从而避免彩晕现象的产生。
触控模组600包括下电极层610及上电极层620。下电极层610设置于遮光阵列200与彩色滤光片500之间,而上电极层620设置于彩色滤光片500之上。如前所述,胶层400的上表面与遮光阵列200的上表面共平面。因此,下电极层610可平整地形成在胶层400及遮光阵列200上。在一些实施例中,下电极层610的厚度T1为1~2.5微米,例如1.5微米、1.8微米、2.1微米或2.3微米。在一些实施例中,上电极层620的厚度T2为1~2.5微米,例如1.5微米、1.8微米、2.1微米或2.3微米。
请参照图2A,以更清楚地理解彩色滤光片500及触控模组600。图2A绘示本揭示内容一实施方式之彩色滤光片500及触控模组600的仰视示意图。如图2A所示,彩色滤光片500具有沿着第一方向D1排列的第一滤光部分510、第二滤光部分520及第三滤光部分530。触控模组600的下电极层610具有沿着第一方向D1延伸的多个第一电极611,以及连接第一电极611的第一连接件612。各第一电极611横跨第一滤光部分510、第二滤光部分520及第三滤光部分530。触控模组600的上电极层620具有沿着第二方向D2延伸的多个第二电极621,以及连接第二电极621的第二连接件622。在一实施方式中,第一方向D1垂直于第二方向D2。各第二电极621分别与第一滤光部分510、第二滤光部分520及第三滤光部分530中之一者重叠。
在一些实施例中,第一电极611的宽度W1小于50微米,例如40微米、30微米、20微米、10微米、5微米或2微米。在一些实施例中,第二电极621的宽度W2小于50微米,例如40微米、30微米、20微米、10微米、5微米或2微米。在一些实施例中,第一电极611、第一连接件612、第二电极621及第二连接件622包括氧化铟锡(indium tin oxide,ITO)、铟锌氧化物(indium zinc oxide,IZO)、铟锡氟氧化物(indium tin fluorine oxide,ITFO)、铝锌氧化物(aluminum zinc oxide,AZO)、氟锌氧化物(fluorine zinc oxide,FZO)、银纳米线(Ag-NW)或纳米碳管(CNT)等,但不以此为限。
在其他实施方式中,触控模组600的下电极层610及上电极层620的配置可互换。换言之,下电极层610可具有沿着第二方向D2延伸的多个第一电极611,且各第一电极611分别与第一滤光部分510、第二滤光部分520及第三滤光部分530中之一者重叠。而上电极层620可具有沿着第一方向D1延伸的多个第二电极621,且各第二电极621横跨第一滤光部分510、第二滤光部分520及第三滤光部分530。
请参照图2B。图2B绘示本揭示内容另一实施方式之彩色滤光片500及触控模组600的仰视示意图。须说明的是,在图2B中,与图2A相同或相似之元件被给予相同的符号,并省略相关说明。图2B与图2A相似,差异在图2B的下电极层610不具有第一连接件612,且第一滤光部分510、第二滤光部分520及第三滤光部分530仅被一个第一电极611所跨越。此外,上电极层620不具有第二连接件622,且第一滤光部分510、第二滤光部分520及第三滤光部分530与一个第二电极621重叠。
本揭示内容亦提供一种触控显示装置10的制造方法。图3A~图7A为本揭示内容一实施方式之触控显示装置10的制造方法的各个阶段的剖面示意图,而图3B~图7B为分别对应图3A~图7A的俯视示意图。
如图3A及图3B所示,形成多个发光元件300于基板100上。使用异向性导电膜(anisotropic conductive film,ACF)或共晶接合(Eutectic bonding)方式,将发光元件300与基板100连接。在一些实施例中,通过巨量转移将多个发光元件300设置于基板100上。
如图4A及图4B所示,形成遮光阵列200于基板100上,从而形成前驱结构10a。遮光阵列200具有多个开口200a,且开口200a暴露出发光元件300。
如图5A及图5B所示,形成胶层400填充于开口200a中,其中胶层400覆盖发光元件300,且胶层400的上表面与遮光阵列200的上表面共平面。
如图6A及图6B所示,形成触控模组600的下电极层610于遮光阵列200及胶层400上。
如图7A及图7B所示,设置彩色滤光片500于触控模组600的下电极层610上。
形成触控模组600的上电极层620于彩色滤光片500上,从而形成如图1的触控显示装置10。
由上述实施例可知,在此揭露的触控显示装置中,触控模组与彩色滤光片整合在一起,使得装置整体较轻薄,符合薄型化趋势。此外,彩色滤光片可过滤掉装置外部射入的环境光,避免彩晕现象的产生。
虽然本揭示内容已以实施方式揭露如上,但其他实施方式亦有可能。因此,所请请求项之精神与范围并不限定于此处实施方式所含之叙述。
任何熟习此技艺者可明了,在不脱离本揭示内容的精神和范围内,当可作各种之更动与润饰,因此本揭示内容的保护范围当视后附之申请专利范围所界定者为准。

Claims (7)

1.一种触控显示装置,其特征在于,包括:
一基板;
一遮光阵列,设置于该基板上,其中该遮光阵列具有复数个开口;
复数个发光元件,设置于该些开口中;
一彩色滤光片,设置于该遮光阵列之上;
一触控模组,包括:
一下电极层,设置于该遮光阵列与该彩色滤光片之间;以及
一上电极层,设置于该彩色滤光片之上;以及
一胶层,填充该些开口,并覆盖该些发光元件,其中该胶层的一上表面与该遮光阵列的一上表面共平面,其中该胶层掺杂有荧光粉体或量子点材料。
2.如权利要求1所述的触控显示装置,其中该胶层掺杂有多个光散射粒子。
3.如权利要求1所述的触控显示装置,其中该些发光元件为微型发光二极管。
4.如权利要求1所述的触控显示装置,其中该彩色滤光片具有沿着一第一方向排列的复数个滤光部分,该上电极层及该下电极层中之一者具有沿着该第一方向延伸的多个第一电极,且该些第一电极横跨该些滤光部分。
5.如权利要求4所述的触控显示装置,其中该上电极层及该下电极层中之另一者具有沿着垂直于该第一方向的一第二方向延伸的多个第二电极,其中该些第二电极与该些滤光部分重叠。
6.一种触控显示装置的制造方法,其特征在于,包括:
提供一前驱结构,其中该前驱结构包括:
一基板;
一遮光阵列,设置于该基板上,其中该遮光阵列具有复数个开口;以及
复数个发光元件,设置于该些开口中;
形成一胶层于该些开口中,其中该胶层掺杂有荧光粉体或量子点材料;
形成一触控模组的一下电极层于该遮光阵列之上;
设置一彩色滤光片于该控模组的该下电极层上;以及
形成该触控模组的一上电极层于该彩色滤光片上。
7.如权利要求6所述的制造方法,其中提供该前驱结构包括:
通过巨量转移将该些发光元件设置于该基板上;以及
形成该遮光阵列于该基板上,其中该遮光阵列具有该些开口,且该开口暴露出该些发光元件。
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