CN103085364B - 用于显示器保护的窗及使用该窗的显示器 - Google Patents

用于显示器保护的窗及使用该窗的显示器 Download PDF

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CN103085364B
CN103085364B CN201210363667.9A CN201210363667A CN103085364B CN 103085364 B CN103085364 B CN 103085364B CN 201210363667 A CN201210363667 A CN 201210363667A CN 103085364 B CN103085364 B CN 103085364B
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plastic foil
display
adhesive layer
protection window
thickness
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CN103085364A (zh
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韩尚佑
李东昊
吴柱锡
金学善
韩官荣
李揆宅
金相九
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Samsung Display Co Ltd
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Abstract

本发明公开了一种显示器保护窗及具有该显示器保护窗的显示装置。显示器保护窗包括:第一塑料膜;第二塑料膜,布置为与第一塑料膜相对;粘合层,设置在第一塑料膜和第二塑料膜之间,以使第一塑料膜和第二塑料膜彼此结合。

Description

用于显示器保护的窗及使用该窗的显示器
技术领域
本发明的示例性实施例总体涉及一种显示器保护窗以及具有该显示器保护窗的显示装置。更具体地说,其涉及一种能够以相对薄的厚度有效地抑制弯曲变形同时具有改善了的抗碰撞性的显示器保护窗,以及具有该显示器保护窗的显示装置。
背景技术
近来,用户可以携带的平板显示器已经作为典型的显示装置而受到关注。容易便携的平板显示器包括有机发光二极管(OLED)显示器、液晶显示器(LCD)、电泳显示器等。
在本背景技术部分中公开的上述信息仅用于增强对所描述的技术的背景的理解,因此,其可包含未形成在该国内对本领域普通技术人员已知的现有技术的信息。
发明内容
描述的技术致力于提供一种改进了的显示器保护窗。
另外,本发明提供了一种能够改善抗碰撞性并有效地抑制翘曲,同时具有相对薄的厚度的显示器保护窗。
另外,本发明提供一种通过具有显示器保护窗而能够被安全地保护的显示装置。
根据本发明的一方面,一种显示器保护窗由以下构成:第一塑料膜;第二塑料膜,布置为与第一塑料膜相对;粘合层,设置在第一塑料膜和第二塑料膜之间,以使第一塑料膜和第二塑料膜彼此结合。
粘合层可以是光学透明胶(OCA)层和超可视树脂(SVR)中的至少一种。
第一塑料膜和第二塑料膜可分别包括聚甲基丙烯酸甲酯(PMMA)和聚倍半硅氧烷中的至少一种。
第一塑料膜和第二塑料膜可分别具有包括在大约0.25mm至0.35mm的范围内的厚度,粘合层可具有包括在大约0.05mm至0.15mm的范围内的厚度。
显示器保护窗还可包括设置在第一塑料膜和粘合层之间的第三塑料膜以及设置在第二塑料膜和粘合层之间的第四塑料膜。
第一塑料膜的厚度和第三塑料膜的厚度之和可包括在大约0.25mm至0.35mm的范围内,第二塑料膜的厚度和第四塑料膜的厚度之和可包括在大约0.25mm至0.35mm的范围内,粘合层可具有包括在大约0.05mm至0.15mm的范围内的厚度。
第一塑料膜和第二塑料膜可由相同的材料形成,第三塑料膜和第四塑料膜可由相同的材料形成。
第一塑料膜和第四塑料膜可由相同的材料形成,第二塑料膜和第三塑料膜可由相同的材料形成。
另外,粘合层可包括邻近第一塑料膜的第一粘合层和邻近第二塑料膜的第二粘合层,并且还可包括设置在第一粘合层和第二粘合层之间的附加塑料膜。
第一粘合层和第二粘合层可分别具有包括在大约0.01mm至0.1mm的范围内的厚度,附加塑料膜可具有包括在大约0.15mm至0.3mm的范围内的厚度。
第一塑料膜和第二塑料膜可分别具有包括在大约0.25mm至0.35mm的范围内的厚度。
显示器保护窗还可包括设置在第一塑料膜和第一粘合层之间的第三塑料膜以及设置在第二塑料膜和第二粘合层之间的第四塑料膜。
第一塑料膜的厚度和第三塑料膜的厚度之和可包括在大约0.25mm至0.35mm的范围内,第二塑料膜的厚度和第四塑料膜的厚度之和可包括在大约0.25mm至0.35mm的范围内,粘合层可具有包括在大约0.05mm至0.15mm的范围内的厚度。
第一塑料膜和第二塑料膜可由相同的材料形成,第三塑料膜和第四塑料膜可由相同的材料形成。
第一塑料膜和第四塑料膜可由相同的材料形成,第二塑料膜和第三塑料膜可由相同的材料形成。
根据本发明的另一方面,一种显示装置由以下构成:显示面板,显示图像;显示器保护窗,设置在显示面板上以保护显示面板。
显示面板可以是有机发光二极管显示面板、液晶显示面板和电泳显示面板中的一种。
根据示例性实施例,显示器保护窗可具有改善了的抗碰撞性并可有效地抑制翘曲,同时具有相对薄的厚度。
另外,可通过具有显示器保护窗而使显示装置被安全地保护。
附图说明
通过参照下面在结合附图考虑时进行的详细描述,对本发明的更完全的理解以及本发明的许多伴随优点将容易明显同时变得更好理解,在附图中,相同的标号表示相同或相似的组件,其中:
图1是根据本发明原理的构造为第一示例性实施例的显示器保护窗的剖视图;
图2是根据本发明原理的构造为示例性实施例的包括显示器保护窗的显示装置的剖视图;
图3是根据本发明原理的构造为第二示例性实施例的显示器保护窗的剖视图;
图4是根据本发明原理的构造为第三示例性实施例的显示器保护窗的剖视图;
图5是根据本发明原理的构造为第四示例性实施例的显示器保护窗的剖视图;
图6是构造为对比示例1的显示器保护窗的剖视图;
图7是构造为对比示例2的显示器保护窗的剖视图;
图8是构造为对比示例3的显示器保护窗的剖视图。
具体实施方式
将在下文中参照附图更充分地描述本发明,在附图中示出了本发明的示例性实施例。如本领域技术人员所将认识到的,描述的实施例可以以各种不同的方式修改,所有的修改不脱离本发明的精神或范围。
在不同的示例性实施例中,相同的标号用于具有相同构造的元件,并将在第一示例性实施例中代表性地描述,并且在其它示例性实施例中,将仅描述与第一示例性实施例的元件不同的元件。
附图是示意性的,并且不是按比例缩小的。为了准确和方便的目的,将附图中的相对尺寸和比例放大或缩小,并且尺寸是随机的并且不限于此。另外,在整个说明书中,相同的标号指示相同的结构、元件或部件。应该理解的是,当元件被称作“在”另一元件“上”时,该元件可以直接在所述另一元件上或者在它们之间可存在中间元件。
示例性实施例具体地表示理想的示例性实施例。结果,期望进行图示的修改。因此,示例性实施例不限于示出的区域的特定形状,并且例如还包括由制造导致的形状改变。
显示装置设置有在显示面板上设置的显示器保护窗。显示器保护窗保护显示面板免受外部碰撞或刮擦的影响。为了降低显示装置的整体厚度并简化组装工艺,以结合的状态制造显示器保护窗和显示面板。
然而,当利用通常使用的具有单一组分的塑料来制造显示器保护窗时,显示器保护窗的抗碰撞特性会由于塑料本身的缺点而劣化。另外,当通过结合不同种类的塑料膜制造显示器保护窗来提高抗碰撞性时,由于两种材料之间特性(例如收缩率和膨胀率)的不同而出现翘曲,从而导致尺寸不稳定。
在本背景技术部分中公开的上述信息仅用于增强对所描述的技术的背景的理解,因此,其可包含未形成在该国内对本领域普通技术人员已知的现有技术的信息。
在下文中,将参照图1描述根据本发明原理的构造为第一示例性实施例的显示器保护窗501。
如图1中所示,构造为第一示例性实施例的显示器保护窗501包括第一塑料膜510、第二塑料膜530和粘合层520。
第一塑料膜510和第二塑料膜530布置为彼此相对。粘合层520设置在第一塑料膜510和第二塑料膜530之间,以使第一塑料膜510和第二塑料膜530彼此结合。
第一塑料膜510和第二塑料膜530分别包括聚甲基丙烯酸甲酯(PMMA)和聚倍半硅氧烷中的至少一种。在这种情况下,第一塑料膜510和第二塑料膜530可由相同的材料形成或者可由不同的材料形成。
粘合层520可以是光学透明胶(optical clear adhesive,OCA)层和超可视树脂(super view resin,SVR)中的至少一种。
在第一示例性实施例中,第一塑料膜510和第二塑料膜530分别具有大约0.25mm至0.35mm的厚度t1。另外,粘合层520具有大约0.05mm至0.15mm的厚度t2。
通过这种构造,构造为第一示例性实施例的显示器保护窗501具有相对薄的厚度以及改善了的抗碰撞性,并能够有效地抑制其翘曲。
即,构造为第一示例性实施例的显示器保护窗501具有改善了的抗碰撞性,同时具有小于0.7mm的厚度,并且能够具有对翘曲的优异的抑制力。
更具体地说,由相对软的材料形成的粘合层520设置在第一塑料膜510和第二塑料膜530之间,以吸收它们之间的碰撞并释放在它们之间产生的应力。另外,在第一示例性实施例中,用作粘合层520的光学透明胶(OCA)层和超可视树脂(SVR)具有优异的热特性,从而可有效地抑制显示器保护窗501的翘曲。
另外,当第一塑料膜510和第二塑料膜530由不同材料形成时,第一塑料膜510和第二塑料膜530的由于它们之间的不同的热膨胀系数而导致的变形可被有效地修正。即,第一塑料膜510和第二塑料膜530中的一个与粘合层520之间的热膨胀系数的差异与第一塑料膜510和第二塑料膜530中的另一个与粘合层520之间的热膨胀系数的差异相比相对较小。因此,可通过热膨胀系数的差异来补偿第一塑料膜510和第二塑料膜530的变形。
在下文中,将参照图2描述具有构造为第一示例性实施例的显示器保护窗501的显示装置101。
显示装置101包括显示图像的显示面板100和图1的显示器保护窗501。
显示面板100可包括形成有显示元件的显示基底110、保护显示元件的包封基底210和驱动电路元件250。
在第一示例性实施例中,根据显示面板100的显示元件的种类,显示面板100可以是有机发光二极管显示面板、液晶显示面板和电泳显示面板中的一种。
通过这种构造,显示装置101可被图1的显示器保护窗501安全地保护。
在下文中,将参照图3描述根据本发明原理的构造为第二示例性实施例的显示器保护窗502。
如图3中所示,构造为第二示例性实施例的显示器保护窗502还包括设置在第一塑料膜511和粘合层520之间的第三塑料膜512以及设置在第二塑料膜531和粘合层520之间的第四塑料膜532。
另外,在第二示例性实施例中,第一塑料膜511的厚度与第三塑料膜512的厚度的和包括在大约0.25mm至0.35mm的范围内,第二塑料膜531的厚度与第四塑料膜532的厚度的和包括在大约0.25mm至0.35mm的范围内。另外,粘合层520具有包括在大约0.05mm至0.15mm的范围内的厚度。
同时,第一塑料膜511和第二塑料膜531可由相同的材料形成,第三塑料膜512和第四塑料膜532可由相同的材料形成。
然而,第二示例性实施例不限于此。即,第一塑料膜511和第四塑料膜532可由相同的材料形成,第二塑料膜531和第三塑料膜512可由相同的材料形成。
通过这种构造,构造为第二示例性实施例的显示器保护窗502可具有改善了的抗碰撞性,同时具有相对薄的厚度,并且能够有效地抑制其翘曲。
具体地说,构造为第二示例性实施例的显示器保护窗502还可有效地抑制热变形。
在下文中,将参照图4描述根据本发明原理的构造为第三示例性实施例的显示器保护窗503。
如图4中所示,根据第三示例性实施例的显示器保护窗503的粘合层包括邻近第一塑料膜510的第一粘合层521和邻近第二塑料膜530的第二粘合层522。另外,显示器保护窗503还包括设置在第一粘合层521和第二粘合层522之间的附加塑料膜540。
在第三示例性实施例中,第一粘合层521和第二粘合层522可分别具有大约0.01mm至0.1mm的厚度t3。附加塑料膜540可具有大约0.15mm至0.3mm的厚度t4。
另外,如第一示例性实施例中那样,第一塑料膜510和第二塑料膜530可分别具有0.25mm至0.35mm的厚度t1。
通过这种构造,可通过利用多个粘合层521和522加强缓冲功能来进一步改善根据第三示例性实施例的显示器保护窗503的抗碰撞性。
在下文中,将参照图5描述根据本发明原理的构造为第四示例性实施例的显示器保护窗504。
如图5中所示,根据第四示例性实施例的显示器保护窗504的粘合层包括邻近第一塑料膜511的第一粘合层521以及邻近第二塑料膜531的第二粘合层522。另外,显示器保护窗504还包括设置在第一粘合层521和第二粘合层522之间的附加塑料膜540。
另外,在第四示例性实施例中,第一粘合层521和第二粘合层522可分别具有大约0.01mm至0.1mm的厚度t3。另外,附加塑料膜540可具有大约0.15mm至0.3mm的厚度t4。
另外,显示器保护窗504还包括设置在第一塑料膜511和第一粘合层521之间的第三塑料膜512以及设置在第二塑料膜531和第二粘合层522之间的第四塑料膜532。
在第四示例性实施例中,第一塑料膜511的厚度与第三塑料膜512的厚度的和t1包括在大约0.25mm至0.35mm的范围内,第二塑料膜531的厚度与第四塑料膜532的厚度的和t1包括在大约0.25mm至0.35mm的范围内。
同时,第一塑料膜511和第二塑料膜531可由相同的材料形成,第三塑料膜512和第四塑料膜532可由相同的材料形成。
然而,第四示例性实施例不限于此,即,第一塑料膜511和第四塑料膜532可由相同的材料形成,第二塑料膜531和第三塑料膜512可由相同的材料形成。
通过这种构造,可通过利用多个粘合层521和522加强缓冲功能来进一步改善根据第四示例性实施例的显示器保护窗504的抗碰撞性。
另外,根据第四示例性实施例的显示器保护窗504还可有效地抑制热变形。
在下文中,将参照图6至图8描述根据第一示例性实施例的实验性示例以及对比示例1、对比示例2和对比示例3。这里,对比示例1、对比示例2和对比示例3分别具有不同的结构。
使用第一示例性实施例的实验性示例、具有图6的结构的对比示例1、具有图7的结构的对比示例2以及具有图8的结构的对比示例3执行第一实验,以通过下落测试来测量抗碰撞特性。
更具体地说,实验性示例具有根据第一示例性实施例的由PMMA膜/OCA层/PMMA膜形成的多层结构。另外,实验性示例的总厚度为0.7mm。
对比示例1通过由亚克力形成的单个板810形成。在对比示例1中,厚度为0.3mm。
在对比示例2中,PMMA膜910由单个板形成,并且其厚度为0.65mm。
如图8中所示,对比示例3由厚度为0.6mm的PMMA膜910和厚度为0.05mm的PC膜920形成。
表1
如表1中所示,在实验性示例中,在下落高度超过80cm时出现损坏。相反,在对比示例中,在下落高度小于或等于15cm时出现损坏。可以通过第一实验看出,与对比示例1、对比示例2和对比示例3相比,实验性示例具有5至8倍的优异的抗碰撞性。
在下文中,利用根据第一示例性实施例的实验性示例以及分别具有不同结构的对比示例4和对比示例5来执行第二实验。
使用根据第一示例性实施例的实验性示例、对比示例4和对比示例5执行第二实验以通过下落测试来测量抗碰撞特性,对比示例4和对比示例5具有与实验性示例相同的结构并具有不同的厚度比例。
更具体地说,在实验性示例中,由PMMA膜/OCA层/PMMA膜形成多层结构,且各层的厚度为0.3mm/0.1mm/0.3mm。
在对比示例4中,由PMMA膜/OCA层/PMMA膜形成多层结构,且各层的厚度为0.2mm/0.1mm/0.2mm。
在对比示例5中,由PMMA膜/OCA层/PMMA膜形成多层结构,且各层的厚度为0.5mm/0.1mm/0.5mm。
表2
如表2中所示,在实验性示例中,在下落高度超过80cm时出现损坏,然而在对比示例中,在下落高度小于或等于20cm时出现损坏。可以通过第二实验看出,与对比示例4和对比示例5相比,实验性示例具有4至8倍的优异的抗碰撞性。
通常,可期望具体特性随着厚度增大或减小而线性地增大或减小,然而可以看出的是,根据第一示例性实施例的实验性示例具有临界效应,使得实验性示例不在通过第二实验性示例预测的范围内。
通过第一实验性示例和第二实验性示例,根据第一示例性实施例的显示器保护窗具有优异的特性,该优异的特性与具有不同的已知结构的保护窗相比不在预测的范围内。
虽然已经结合当前被认为是可实行的示例性实施例描述了本公开,但是应当理解的是,本发明不限于公开的实施例,而是相反,本发明意图覆盖包括在权利要求的精神和范围内的各种修改和等同布置。
标号描述
100:显示面板 101:显示装置
110:显示基底 210:包封基底
250:驱动电路元件 501:显示器保护窗
510:第一塑料膜 520:粘合层
530:第二塑料膜

Claims (10)

1.一种显示器保护窗,所述显示器保护窗包括:
第一塑料膜;
第二塑料膜,布置为与第一塑料膜相对;
粘合层,设置在第一塑料膜和第二塑料膜之间,以使第一塑料膜和第二塑料膜彼此结合;
第三塑料膜,设置在第一塑料膜和粘合层之间并与粘合层和第一塑料膜直接接触;以及
第四塑料膜,设置在第二塑料膜和粘合层之间并与粘合层和第二塑料膜直接接触。
2.如权利要求1所述的显示器保护窗,其中,粘合层为光学透明胶层和超可视树脂中的至少一种。
3.如权利要求1所述的显示器保护窗,其中,第一塑料膜和第二塑料膜分别包括聚甲基丙烯酸甲酯和聚倍半硅氧烷中的至少一种。
4.如权利要求1所述的显示器保护窗,其中,第一塑料膜的厚度和第三塑料膜的厚度之和包括在0.25mm至0.35mm的范围内,第二塑料膜的厚度和第四塑料膜的厚度之和包括在0.25mm至0.35mm的范围内,粘合层具有包括在0.05mm至0.15mm的范围内的厚度。
5.如权利要求1所述的显示器保护窗,其中,第一塑料膜和第二塑料膜由相同的材料形成,第三塑料膜和第四塑料膜由相同的材料形成。
6.如权利要求1所述的显示器保护窗,其中,第一塑料膜和第四塑料膜由相同的材料形成,第二塑料膜和第三塑料膜由相同的材料形成。
7.如权利要求1所述的显示器保护窗,其中,粘合层包括邻近第一塑料膜的第一粘合层和邻近第二塑料膜的第二粘合层,并且还包括设置在第一粘合层和第二粘合层之间的附加塑料膜。
8.如权利要求7所述的显示器保护窗,其中,第一粘合层和第二粘合层分别具有包括在0.01mm至0.1mm的范围内的厚度,附加塑料膜具有包括在0.15mm至0.3mm的范围内的厚度。
9.一种显示装置,所述显示装置包括:
显示面板,显示图像;以及
权利要求1中的显示器保护窗,设置在显示面板上以保护显示面板。
10.如权利要求9所述的显示装置,其中,显示面板是有机发光二极管显示面板、液晶显示面板和电泳显示面板中的一种。
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