CN109890775A - 发光性曲面玻璃和曲面数字标牌 - Google Patents
发光性曲面玻璃和曲面数字标牌 Download PDFInfo
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- CN109890775A CN109890775A CN201880004076.8A CN201880004076A CN109890775A CN 109890775 A CN109890775 A CN 109890775A CN 201880004076 A CN201880004076 A CN 201880004076A CN 109890775 A CN109890775 A CN 109890775A
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- bend glass
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Abstract
本发明的目的在于,提供尽管为曲率半径小的曲面状,也可通过照射光线在整个面进行清晰显示的发光性曲面玻璃;以及使用了该发光性曲面玻璃的曲面数字标牌。本发明是一种发光性曲面玻璃,其包含发光片与曲率半径为3000mm以下的透明板的层叠体,上述发光片含有热塑性树脂以及利用激发光而发出波长为380~750nm的可见光的发光材料。
Description
技术领域
本发明涉及尽管为曲率半径小的曲面状,通过照射光线也能够在整个面进行清晰显示的发光性曲面玻璃;以及使用了该发光性曲面玻璃的曲面数字标牌。
背景技术
车站或机场等公共设施、商场等商业施设中,设置有显示器中以活动图像或静止图像来显示各种信息的数字标牌。这些数字标牌通常使用液晶显示器、等离子体显示器(例如专利文献1等),在大型数字标牌使用液晶显示器等的情况下,价格极为昂贵。
与此相对,将实施了特殊加工后的玻璃等作为屏幕并利用投影仪来投影影像的方法逐渐被采用。
然而,近年来,逐渐在寻求发挥出更高外观性的复杂形状的数字标牌。此外,还进行了利用建筑物的柱子来设置数字标牌的屏幕的操作。对这种复杂形状、柱状等曲率半径小的曲面状屏幕投影影像的情况下,存在难以在屏幕的整个面进行清晰显示的问题。
现有技术文献
专利文献
专利文献1:日本特表平4-502525号公报
发明内容
发明所要解决的课题
本发明的目的在于,鉴于上述现状,提供尽管为曲率半径小的曲面状,也可通过照射光线而在整个面进行清晰显示的发光性曲面玻璃;以及使用了该发光性曲面玻璃的曲面数字标牌。
用于解决课题的方法
本发明是一种发光性曲面玻璃,其包含发光片与曲率半径为3000mm以下的透明板的层叠体,上述发光片含有热塑性树脂以及利用激发光而发出波长为380~750nm的可见光的发光材料。
以下详述本发明。
本发明人等进行了深入的研究,结果发现:将含有热塑性树脂以及利用激发光而发出波长为380~750nm的可见光的发光材料的发光片层叠于透明板,对由此而得的层叠体照射该激发光,由此能够显示各种图像。该图像不是由投影仪投影的图像,而是通过层叠体自身发光而显示的图像。因此,与由投影仪进行投影的情况不同,即使层叠体是曲率半径小的曲面状,也能够在整个面进行清晰显示。
本发明的发光性曲面玻璃包含透明板与发光片的层叠体。
上述透明板具有对本发明的发光性曲面玻璃赋予强度并提高处置性的作用。作为上述层叠体,其中,优选采用在一对透明板之间层叠有上述发光片的结构(夹层玻璃结构)。
上述透明板可以使用通常使用的透明甲板玻璃。可列举出例如浮法平板玻璃、抛光平板玻璃、压花玻璃、嵌丝玻璃、夹丝平板玻璃、着色了的平板玻璃、热射线吸收玻璃、热射线反射玻璃、生玻璃等无机玻璃。此外,也可以使用在玻璃的表面形成有紫外线遮蔽涂层的紫外线遮蔽玻璃,优选用作照射特定波长的光线一侧的相反侧的玻璃板。进而,作为上述透明板,也可以使用聚对苯二甲酸乙二醇酯、聚碳酸酯、聚丙烯酸酯等有机塑料板。
作为上述透明板,也可使用2种以上的透明板。此外,作为上述透明板,可以使用2种以上的厚度不同的透明板。
上述透明板是曲率半径为3000mm以下的曲面状。如果曲率半径为3000mm以下,则可适合用于外观性高的复杂形状的数字标牌、利用建筑物的柱子的数字标牌。上述透明板优选曲率半径为2000mm以下的曲面状、更优选曲率半径为1000mm以下的曲面状。
本发明的发光性曲面玻璃即使在透明板的曲率半径超过3000mm的情况下,也可通过照射激发光而显示各种图像。但是,本发明在尽管为曲率半径为3000mm以下的曲面状也能够通过照射光线而在整个面进行清晰显示的方面存在很大的优点。
上述透明板的厚度没有特别限定,优选下限为1.5mm、优选上限为15mm。若上述透明板的厚度在上述范围内,则能够兼顾充分的强度与处置性。上述透明板的厚度的更优选下限为2.0mm、更优选上限为12mm。
上述发光片含有热塑性树脂以及利用激发光而发出波长为380~750nm的可见光的发光材料。通过对具有这种发光片的发光性曲面玻璃照射激发光,从而发光性曲面玻璃自身发光,能够显示各种图像。
上述热塑性树脂没有特别限定,可列举出例如聚乙烯醇缩醛树脂、乙烯-乙酸乙烯酯共聚物树脂、乙烯-丙烯酸类共聚物树脂、聚氨酯树脂、含有硫元素的聚氨酯树脂、聚乙烯醇树脂、氯乙烯树脂、聚对苯二甲酸乙二醇酯树脂等。其中,从通过与增塑剂并用而能够对上述透明板发挥出优异粘接性的观点出发,优选为聚乙烯醇缩醛树脂。
上述聚乙烯醇缩醛树脂只要是将聚乙烯醇用醛进行缩醛化而得到的聚乙烯醇缩醛树脂,就没有特别限定,优选为聚乙烯醇缩丁醛。此外,也可以根据需要将2种以上的聚乙烯醇缩醛加以并用。
上述聚乙烯醇缩醛树脂的缩醛化度的优选下限为40摩尔%、优选上限为85摩尔%,更优选下限为60摩尔%、更优选上限为75摩尔%。
上述聚乙烯醇缩醛树脂的羟基量的优选下限为15摩尔%、优选上限为35摩尔%。若羟基量为15摩尔%以上,则容易成形为夹层玻璃用中间膜。若羟基量为35摩尔%以下,则所得发光片容易进行处置。
需要说明的是,上述缩醛化度和羟基量例如可按照JIS K6728“聚乙烯醇缩丁醛试验方法”进行测定。
上述聚乙烯醇缩醛树脂可通过将聚乙烯醇用醛进行缩醛化来制备。上述聚乙烯醇通常通过将聚乙酸乙烯酯进行皂化而得到,通常使用皂化度为70~99.8摩尔%的聚乙烯醇。
上述聚乙烯醇的聚合度的优选下限为500、优选上限为4000。若上述聚乙烯醇的聚合度为500以上,则使用了所得的发光片的夹层玻璃的耐贯穿性变高。若上述聚乙烯醇的聚合度为4000以下,则容易成形为发光片。上述聚乙烯醇的聚合度的更优选下限为1000、更优选上限为3600。
上述醛没有特别限定,一般而言,适合使用碳数为1~10的醛。上述碳数为1~10的醛没有特别限定,可列举出例如正丁醛、异丁醛、正戊醛、2-乙基丁醛、正己醛、正辛醛、正壬醛、正癸醛、甲醛、乙醛、苯甲醛等。其中,优选为正丁醛、正己醛、正戊醛,更优选为正丁醛。这些醛可以单独使用,也可以并用2种以上。
上述发光材料是通过激发光而发出波长为380~750nm的可见光的发光材料。通过使用这种发光材料,由此,通过对发光性曲面玻璃照射激发光,从而使得发光性曲面玻璃自身发光,能够显示各种图像。
作为上述发光材料,只要是利用激发光而发出波长为380~750nm的可见光的发光材料,就没有特别限定,可以使用现有公知的发光材料。发光材料可以单独使用,也可以并用2种以上。其中,从能够以高亮度进行发光的方面出发,优选为具有含卤素原子的多齿配体的镧系元素络合物、具有对苯二甲酸酯结构的发光材料。
在镧系元素络合物之中,具有含卤素原子的多齿配体的镧系元素络合物通过照射光线而以高发光强度进行发光。作为上述具有含卤素原子的多齿配体的镧系元素络合物,可列举出:具有含卤素原子的二齿配体的镧系元素络合物、具有含卤素原子的三齿配体的镧系元素络合物、具有含卤素原子的四齿配体的镧系元素络合物、具有含卤素原子的五齿配体的镧系元素络合物、具有含卤素原子的六齿配体的镧系元素络合物等。
其中,具有含卤素原子的二齿配体的镧系元素络合物或具有含卤素原子的三齿配体的镧系元素络合物通过照射波长为300~410nm的光而以极高的发光强度发出波长为580~780nm的光。该发光为极高强度,因此,含有其的发光片即使利用极弱的激发光也可充分地进行发光,能够呈现出基于“朦胧发光”的极优异的美观。
而且,上述具有含卤素原子的二齿配体的镧系元素络合物或具有含卤素原子的三齿配体的镧系元素络合物的耐热性也优异。因此,在将发光片用于被太阳光的红外线照射的室外时,也能够防止发光材料因高温而劣化。
本说明书中,所谓镧系元素,包括镧、铈、镨、钕、钷、钐、铕、钆、铽、镝、钬、饵、铥、镱或镥。从能够获得更高的发光强度的方面出发,镧系元素优选为钕、铕或铽,更优选为铕或铽,进一步优选为铕。
上述具有含卤素原子的二齿配体的镧系元素络合物可列举出例如三(三氟乙酰丙酮)菲绕啉铕、三(三氟乙酰丙酮)二苯基菲绕啉铕、三(六氟乙酰丙酮)二苯基菲绕啉铕、三(六氟乙酰丙酮)双(三苯基膦)铕、三(三氟乙酰丙酮)2,2’-联吡啶铕、三(六氟乙酰丙酮)2,2’-联吡啶铕等。
上述具有含卤素原子的三齿配体的镧系元素络合物可列举出例如三联吡啶三氟乙酰丙酮铕、三联吡啶六氟乙酰丙酮铕等。
作为上述具有含卤素原子的二齿配体的镧系元素络合物或具有含卤素原子的三齿配体的镧系元素络合物的卤素原子,可以使用氟原子、氯原子、溴原子、碘原子。其中,从使配体的结构稳定化的观点出发,优选为氟原子。
上述具有含卤素原子的二齿配体的镧系元素络合物或具有含卤素原子的三齿配体的镧系元素络合物之中,从初始发光性特别优异的方面出发,优选为具有二齿配体且该二齿配体具有含卤素原子的乙酰丙酮骨架的镧系元素络合物。
上述具有二齿配体且该二齿配体具有含卤素原子的乙酰丙酮骨架的镧系元素络合物可列举出例如Eu(TFA)3phen、Eu(TFA)3dpphen、Eu(HFA)3phen、[Eu(FOD)3]bpy、[Eu(TFA)3]tmphen、[Eu(FOD)3]phen等。示出这些具有二齿配体且该二齿配体具有含卤素原子的乙酰丙酮骨架的镧系元素络合物的结构。
[化1]
上述具有含卤素原子的二齿配体的镧系元素络合物或具有含卤素原子的三齿配体的镧系元素络合物优选为粒子状。通过为粒子状,更容易使上述具有含卤素原子的二齿配体的镧系元素络合物或具有含卤素原子的三齿配体的镧系元素络合物在发光片中进行微分散。
在上述具有含卤素原子的二齿配体的镧系元素络合物或具有含卤素原子的三齿配体的镧系元素络合物为粒子状的情况下,镧系元素络合物的平均粒径的优选下限为0.01μm、优选上限为10μm,更优选下限为0.03μm、更优选上限为1μm。
上述具有对苯二甲酸酯结构的发光材料可列举出例如具有下述通式(1)所示结构的化合物、具有下述通式(2)所示结构的化合物。
它们可以单独使用,也可以使用2种以上。
[化2]
上述通式(1)中,R1表示有机基团,x为1、2、3或4。
从发光片的透明性变得更高的方面出发,x优选为1或2,更优选在苯环的2位或5位具有羟基,进一步优选在苯环的2位和5位具有羟基。
上述R1的有机基团优选为烃基,更优选碳数为1~10的烃基,进一步优选碳数为1~5的烃基,特别优选碳数为1~3的烃基。
若上述烃基的碳数为10以下,则能够使上述具有对苯二甲酸酯结构的发光材料容易地分散在发光片中。
上述烃基优选为烷基。
作为上述具有通式(1)所示结构的化合物,可列举出例如2,5-二羟基对苯二甲酸二乙酯、2,5-二羟基对苯二甲酸二甲酯等。
其中,从能够显示出对比度更高的图像的方面出发,上述具有通式(1)所示结构的化合物优选为2,5-二羟基对苯二甲酸二乙酯(Aldrich公司制、“2,5-二羟基对苯二甲酸二乙酯”)。
上述通式(2)中,R2表示有机基团,R3和R4表示氢原子或有机基团,y为1、2、3或4。
上述R2的有机基团优选为烃基,更优选碳数为1~10的烃基,进一步优选碳数为1~5的烃基,特别优选碳数为1~3的烃基。
若上述烃基的碳数为上述上限以下,则能够使上述具有对苯二甲酸酯结构的发光材料容易地分散在发光片中。
上述烃基优选为烷基。
上述通式(2)中,NR3R4为氨基。
R3和R4优选为氢原子。
在上述具有通式(2)所示结构的化合物的苯环的氢原子之中,可以是一个氢原子为上述氨基,也可以是两个氢原子为上述氨基,也可以是三个氢原子为上述氨基,还可以是四个氢原子为上述氨基。
作为上述具有通式(2)所示结构的化合物,从能够显示出对比度更高的图像的方面出发,优选为2,5-二氨基对苯二甲酸二乙酯(Aldrich公司制)。
上述发光片中的上述发光材料的含量根据发光材料的种类进行适当调整即可,相对于上述热塑性树脂100重量份的优选下限为0.001重量份、优选上限为10重量份。若上述发光材料的含量在该范围内,则通过与上述颜料并用而能够呈现优异的美观。上述发光材料的含量的更优选下限为0.01重量份、更优选上限为8重量份,进一步优选下限为0.1重量份、进一步优选上限为5重量份。
上述发光片可以进一步含有增塑剂。
上述增塑剂没有特别限定,可列举出例如一元有机酸酯、多元有机酸酯等有机酯增塑剂;有机磷酸增塑剂、有机亚磷酸增塑剂等磷酸增塑剂等。上述增塑剂优选为液状增塑剂。
上述一元有机酸酯没有特别限定,可列举出例如通过二醇与一元有机酸的反应而得到的二醇酯等。作为上述二醇,可列举出例如三乙二醇、四乙二醇、三丙二醇等。作为上述一元有机酸,可列举出例如丁酸、异丁酸、己酸、2-乙基丁酸、庚酸、正辛酸、2-乙基己酸、壬酸(正壬酸)、癸酸等。其中,优选为三乙二醇二己酸酯、三乙二醇二-2-乙基丁酸酯、三乙二醇二正辛酸酯、三乙二醇二-2-乙基己酸酯等。
上述多元有机酸酯没有特别限定,可列举出例如己二酸、癸二酸、壬二酸等多元有机酸与碳数为4~8的直链或具有分枝结构的醇而成的酯化合物。其中,优选为癸二酸二丁酯、壬二酸二辛酯、卡必醇己二酸二丁酯等。
上述有机酯增塑剂没有特别限定,可列举出三乙二醇二-2-乙基丁酸酯、三乙二醇二-2-乙基己酸酯、三乙二醇二辛酸酯、三乙二醇二正辛酸酯、三乙二醇二正庚酸酯、四乙二醇二正庚酸酯、四乙二醇二-2-乙基己酸酯、癸二酸二丁酯、壬二酸二辛酯、卡必醇己二酸二丁酯、乙二醇二-2-乙基丁酸酯、1,3-丙二醇二-2-乙基丁酸酯、1,4-丁二醇二-2-乙基丁酸酯、二乙二醇二-2-乙基丁酸酯、二乙二醇二-2-乙基己酸酯、二丙二醇二-2-乙基丁酸酯、三乙二醇二-2-乙基戊酸酯、四乙二醇二-2-乙基丁酸酯、二乙二醇二癸酸酯、己二酸二己酯、己二酸二辛酯、己二酸己基环己酯、己二酸二异壬酯、己二酸庚基壬基酯、癸二酸二丁酯、油改性癸二酸醇酸、磷酸酯与己二酸酯的混合物、由己二酸酯、碳数为4~9的烷基醇和碳数为4~9的环状醇制作的混合型己二酸酯、己二酸己酯等碳数为6~8的己二酸酯等。
上述有机磷酸增塑剂没有特别限定,可列举出例如磷酸三丁氧基乙酯、磷酸异癸基苯酯、磷酸三异丙酯等。
上述增塑剂之中,优选为选自己二酸二己酯(DHA)、三乙二醇二-2-乙基己酸酯(3GO)、四乙二醇二-2-乙基己酸酯(4GO)、三乙二醇二-2-乙基丁酸酯(3GH)、四乙二醇二-2-乙基丁酸酯(4GH)、四乙二醇二正庚酸酯(4G7)和三乙二醇二正庚酸酯(3G7)中的至少1种。
进而,作为上述增塑剂,为了不易引起水解,而优选含有三乙二醇二-2-乙基己酸酯(3GO)、三乙二醇二-2-乙基丁酸酯(3GH)、四乙二醇二-2-乙基己酸酯(4GO)、己二酸二己酯(DHA)。更优选含有四乙二醇二-2-乙基己酸酯(4GO)、三乙二醇二-2-乙基己酸酯(3GO)。进一步优选含有三乙二醇二-2-乙基己酸酯。
上述发光片中的上述增塑剂的含量没有特别限定,相对于上述热塑性树脂100重量份的优选下限为30重量份、优选上限为100重量份。若上述增塑剂的含量在该范围内,则不会损害发光片的美观,能够容易成形。上述增塑剂的含量的更优选下限为35重量份、更优选上限为80重量份,进一步优选下限为45重量份、进一步优选上限为70重量份,特别优选下限为50重量份、特别优选上限为63重量份。
上述发光片优选含有粘接力调节剂。
作为上述粘接力调节剂,可适合使用例如碱金属盐或碱土金属盐。作为上述粘接力调节剂,可列举出例如钾、钠、镁等的盐。
作为构成上述盐的酸,可列举出例如辛酸、己酸、2-乙基丁酸、丁酸、乙酸、甲酸等羧酸的有机酸、或者、盐酸、硝酸等无机酸。
需要说明的是,上述发光片中,除了包含上述粘接力调节剂之外,还可能包含源自在制造热塑性树脂时所使用的中和剂等原料的钾、钠、镁。在这些金属的含量多的情况下,有时发光材料的发光性降低。这种发光性的降低在发光材料为上述具有含卤素原子的二齿配体的镧系元素络合物或具有含卤素原子的三齿配体的镧系元素络合物的情况下特别显著。
因而,发光片所含的钾、钠和镁的总含量优选为50ppm以下。通过使钾、钠和镁的总含量为50ppm以下,从而能够防止发光材料的发光性降低。
上述发光片优选进一步含有分散剂。通过含有分散剂,能够抑制上述发光材料的凝聚。
上述分散剂可以使用例如直链烷基苯磺酸盐等具有磺酸结构的化合物;二酯化合物、蓖麻酸烷基酯、邻苯二甲酸酯、己二酸酯、癸二酸酯、磷酸酯等具有酯结构的化合物;聚乙二醇、聚丙二醇、烷基苯基-聚氧乙烯-醚等具有醚结构的化合物;聚羧酸等具有羧酸结构的化合物;月桂胺、二甲基月桂胺、油基丙二胺、聚氧乙烯的仲胺、聚氧乙烯的叔胺、聚氧乙烯的二胺等具有胺结构的化合物;聚亚烷基多胺环氧烷烃等具有多胺结构的化合物;油酸二乙醇酰胺、烷醇脂肪酸酰胺等具有酰胺结构的化合物;聚乙烯吡咯烷酮、聚酯酸酰胺胺盐等具有高分子量型酰胺结构的化合物等分散剂。此外,也可以使用聚氧乙烯烷基醚磷酸(盐)、高分子聚羧酸、缩合蓖麻酸酯等高分子量分散剂。需要说明的是,高分子量分散剂被定义为其分子量为1万以上的分散剂。
在上述发光材料为上述具有含卤素原子的二齿配体的镧系元素络合物或具有含卤素原子的三齿配体的镧系元素络合物的情况下,上述发光片中的上述分散剂的含量相对于发光材料100重量份来说的优选下限为1重量份、优选上限为50重量份。若上述分散剂的含量在该范围内,则能够使上述具有含卤素原子的二齿配体的镧系元素络合物或具有含卤素原子的三齿配体的镧系元素络合物均匀地分散在发光片中。上述分散剂的含量的更优选下限为3重量份、更优选上限为30重量份,进一步优选下限为5重量份、进一步优选上限为25重量份。
上述发光片可根据需要而含有紫外线吸收剂、抗氧化剂、光稳定剂、抗静电剂、蓝色颜料、蓝色染料、绿色颜料、绿色染料等添加剂。
本发明的发光性曲面玻璃尽管是曲率半径小的曲面状,也可通过照射上述发光材料的激发光而在整个面进行清晰显示。因此,可适用于外观性高的复杂形状的数字标牌、利用建筑物的柱子的数字标牌。
包含光源和本发明的发光性曲面玻璃的曲面数字标牌也是本发明之一。
发明的效果
根据本发明,可提供尽管为曲率半径小的曲面状,也可通过照射光线而在整个面进行清晰显示的发光性曲面玻璃;以及使用了该发光性曲面玻璃的曲面数字标牌。
附图说明
图1是对在实施例、比较例的评价中使文字信息显示的方法进行说明的示意图。
具体实施方式
以下,列举出实施例来更详细地说明本发明的方式,但本发明并不仅仅限定于这些实施例。
(实施例1)
(1)Eu(TFA)3phen的制备
将乙酸铕(Eu(CH3COO)3)12.5mmol溶解于50mL的蒸馏水中,添加三氟乙酰丙酮(TFA、CH3COCH2COCF3)33.6mmol,在室温下搅拌3小时。将沉淀的固体过滤、水洗后,利用甲醇和蒸馏水进行重结晶,得到Eu(TFA)3(H2O)2。将所得的络合物Eu(TFA)3(H2O)2 5.77g和1,10-菲绕啉(phen)2.5g溶解于100mL甲醇中,进行12小时的加热回流。12小时后,通过减压馏去而去除甲醇,得到白色产物。将该粉末用甲苯清洗,通过抽滤而去除未反应的原料后,减压馏去甲苯,得到粉体。通过利用甲苯与己烷的混合溶剂进行重结晶,从而得到Eu(TFA)3phen。
(2)发光片的制备
向作为增塑剂的三乙二醇二-2-乙基己酸酯(3GO)40重量份中添加作为发光材料的Eu(TFA)3phen 0.2重量份,以最终浓度达到0.036phr的方式添加乙酰丙酮镁来作为粘接力调节剂,制备出发光性的增塑剂溶液。将所得的全部增塑剂溶液与聚乙烯醇缩丁醛(PVB、聚合度为1700)100重量份利用混合辊充分混炼,制备出树脂组合物。
使用挤出机将所得树脂组合物进行挤出,得到厚度760μm的发光片。
(3)发光性曲面玻璃的制造
将所得发光片层叠在纵30cm×横30cm的一对透明玻璃(厚度为2.5mm、曲率半径为3000mm的曲面状)之间,得到层叠体。将所得层叠体利用真空层压机在90℃下保持30分钟,同时进行真空压制而使其压接。在压接后,在140℃、14MPa的条件下使用高压釜进行20分钟的压接,得到夹层玻璃结构的发光性曲面玻璃。
(实施例2)
作为一对透明玻璃而使用厚度为2.5mm、曲率半径为2000mm的玻璃,除此之外,与实施例1同样地操作来制造发光片、发光性曲面玻璃。
(实施例3)
作为一对透明玻璃而使用厚度为2.5mm、曲率半径为1000mm的玻璃,除此之外,与实施例1同样地操作来制造发光片、发光性曲面玻璃。
(实施例4)
将乙酸铽(Tb(CH3COO)3)12.5mmol溶解于50mL的蒸馏水中,添加三氟乙酰丙酮(TFA、CH3COCH2COCF3)33.6mmol,在室温下搅拌3小时。将沉淀的固体过滤、水洗后,利用甲醇和蒸馏水进行重结晶,得到Tb(TFA)3(H2O)2。将所得的络合物Tb(TFA)3(H2O)2 5.77g和1,10-菲绕啉(phen)2.5g溶解于100mL的甲醇中,进行12小时的加热回流。12小时后,通过减压馏去而去除甲醇,得到白色产物。将该粉末用甲苯清洗,通过抽滤而去除未反应的原料后,减压馏去甲苯,得到粉体。通过利用甲苯与己烷的混合溶剂进行重结晶,得到Tb(TFA)3phen。
除了使用Tb(TFA)3phen来代替Eu(TFA)3phen之外,与实施例1同样地操作来制造发光片、发光性曲面玻璃。
(实施例5)
除了使用2,5-二羟基对苯二甲酸二乙酯(ALDRICH公司制、“2,5-二羟基对苯二甲酸二乙酯”)来代替Eu(TFA)3phen之外,与实施例1同样地操作来制造发光片、发光性曲面玻璃。
(比较例1)
除了未使用发光材料之外,与实施例1同样地操作来制造树脂片、曲面玻璃。
(评价)
针对实施例和比较例中得到的发光性曲面玻璃,利用下述方法来进行评价。
将结果示于表1。
如图1所示,从在实施例中得到的发光性曲面玻璃的曲面的中心点侧,以投影仪(OPUS公司制、ePro-2000)照射波长为405nm、输出功率为1mW的光作为激发光源,使发光材料发光,由此在9处显示出作为文字信息的“A”。
另一方面,从在比较例1中得到的曲面玻璃的曲面的中心点,使用投影仪(OPUS公司制、ePro-2000)来照射波长为515nm的绿色光,在9处显示出作为文字信息的“A”。
通过目视来观察各个“A”,将观察到形变的“A”小于5个的情况评价为“○”,将观察到形变的“A”为5个以上的情况评价为“×”。
[表1]
产业上的可利用性
根据本发明,可提供尽管是曲率半径小的曲面状,也可通过照射光线而在整个面进行清晰显示的发光性曲面玻璃;以及使用了该发光性曲面玻璃的曲面数字标牌。
Claims (5)
1.一种发光性曲面玻璃,其特征在于,其包含发光片与曲率半径为3000mm以下的透明板的层叠体,其中,
所述发光片含有热塑性树脂以及利用激发光而发出波长为380nm~750nm的可见光的发光材料。
2.根据权利要求1所述的发光性曲面玻璃,其特征在于,透明板的曲率半径为2000mm以下。
3.根据权利要求1所述的发光性曲面玻璃,其特征在于,透明板的曲率半径为1000mm以下。
4.根据权利要求1、2或3所述的发光性曲面玻璃,其特征在于,其包含在一对透明板之间层叠有发光片的层叠体。
5.一种曲面数字标牌,其特征在于,其包含光源以及权利要求1、2、3或4所述的发光性曲面玻璃。
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- 2018-03-27 EP EP18775218.3A patent/EP3604248B1/en active Active
- 2018-03-27 MX MX2019010762A patent/MX2019010762A/es unknown
- 2018-03-27 US US16/477,569 patent/US11545056B2/en active Active
- 2018-03-27 JP JP2018517653A patent/JP7010814B2/ja active Active
- 2018-03-27 CN CN201880004076.8A patent/CN109890775A/zh active Pending
- 2018-03-27 WO PCT/JP2018/012422 patent/WO2018181305A1/ja unknown
- 2018-03-27 KR KR1020197008222A patent/KR102500390B1/ko active IP Right Grant
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US20190371216A1 (en) | 2019-12-05 |
WO2018181305A1 (ja) | 2018-10-04 |
EP3604248B1 (en) | 2023-05-03 |
KR20190129817A (ko) | 2019-11-20 |
MX2019010762A (es) | 2019-10-17 |
KR102500390B1 (ko) | 2023-02-15 |
JPWO2018181305A1 (ja) | 2020-02-13 |
EP3604248A1 (en) | 2020-02-05 |
JP7010814B2 (ja) | 2022-02-10 |
EP3604248A4 (en) | 2020-12-16 |
US11545056B2 (en) | 2023-01-03 |
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