CN104950491A - 一种使用液晶显示技术的汽车挡风玻璃 - Google Patents
一种使用液晶显示技术的汽车挡风玻璃 Download PDFInfo
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Abstract
本发明公开了一种使用液晶显示技术的汽车档风玻璃,尤其是一种能调节透明度,提高驾驶安全的汽车挡风玻璃,其构造特征是,由上层玻璃、公共电极、上偏光片、液晶分子,三基色滤色板、下偏光片、像素电极、下层玻璃组成,其实现原理是,上层玻璃和下层玻璃内侧镀膜形成公共电极和像素电极叠放在一起,夹层内装有偏光片、液晶分子、三基色滤色板,液晶分子规律排列呈透明状态,向公共电极和像素电极施加驱动电压,电场引起液晶分子排列方向改变而遮挡光线,从而达到控制玻璃透明度的效果,当控制某个像素相对应的滤色区域时,可以改变该区的玻璃颜色,当同时驱动多个像素组合时,可以产生显示图形或字符信息。
Description
技术领域
本发明涉及一种汽车档风玻璃,尤其是一种能调节透明度,提高驾驶安全的汽车挡风玻璃。
背景技术
目前,公知的汽车挡风玻璃通常是夹层玻璃结构,在夹层内粘接PVB薄膜。但是,这种汽车挡风玻璃具有固定的透明度,当驾驶汽车穿越不同光线环境时,会造成驾驶员眼睛出现不适应性,而影响驾驶安全,增加交通事故风险。
发明内容
为了解决现有汽车档风玻璃的不足,本发明提供一种使用液晶显示技术的汽车挡风玻璃,该汽车挡风玻璃能够调节透明度,可以依照环境和驾驶员喜好改变玻璃滤光颜色,在强光环境中减少光线通过量,在弱光环境中增加透明度提高视野,以平衡驾驶员视觉感受,因而大大增加驾驶安全。
本发明解决其技术方案,其构造特征是:由上层玻璃、公共电极、上偏光片、液晶分子、三基色滤色板、像素电极、下层玻璃组成。技术原理是:上层玻璃和下层玻璃是由两片高强度钢化无钠玻璃粘合组成,也可以是由其它软性复合材料或钢化复合材料组成,它以叠层结构组合在一起,以固定中间的上偏光片、下偏光片、三基色滤色板,并使液晶分子按要求排列。
公共电极是一种具有透明特性的导体镀膜层,也可以是任何具有透明和导电特性的薄膜或镀膜层,它被镀上或喷涂在夹层玻璃的内侧,当连接驱动电压时产生电场驱动液晶分子改变排列,像素电极是依照需要而设定大小的点状电极,它的大小决定透光或遮光面积,多个像素组合可产生图形或文字信息。
电极的内层是两块偏光片,上偏光片和下偏光片是一种具有偏振光效应的PVA材料部件,也可以是由其它具有偏振光效应的材料组成,上偏光片和下偏光片导光方向相互垂直,结合液晶分子排列达到透光和遮光效果。
最内层是规律排列的液晶分子,液晶分子是一种介于晶体和液体的有机化合物,它具有电场作用下改变排列方向的特性,当向公共电极和像素电极间施加驱动电压时,电场使液晶分子方向发生改变,从而遮挡穿过的光线,以达到遮光效果,液晶分子的排列角度受电场强度影响,改变驱动电压可以控制玻璃的透明度。
在液晶分子外层加入三基色滤色板,控制某基色位置对应的像素点,即可控制某种色谱光线穿过玻璃,因此可以依照个人喜好或环境来调节玻璃的颜色。
本发明的有益效果是,通过改变驱动电压控制光线通过量,达到调节玻璃透明度功能,当改变部份基色对应的像素点时,可改变玻璃的滤色效果,驾驶汽车处于强光环境或受对面车灯照射时,可控制前挡风玻璃的透明度减少光线对眼睛的影响,大大增加了驾驶安全和舒适性。
附图说明
下面结合附图和实施例对本发明进一步说明。
图1是本发明例的原理示意图。
图2是本发明例在无驱动电压时玻璃呈透明状的原理图。
图3是本发明例在施加驱动电压时阻挡光线的示意图。
在图1中,1.上层玻璃,2.公共电极,3.上偏光片,4.液晶分子,5.三基色滤色板,6.下偏光片,7.像素电极,8.下层玻璃。
具体实施方式
如图1所示,由上层玻璃1、公共电极2、上偏光片3、液晶分子4,三基色滤色板5、下偏光片6、像素电极7、下层玻璃8组成,其实现原理是,上层玻璃1和下层玻璃8内侧镀膜形成公共电极2和像素电极7,上层玻璃1和下层玻璃8叠放在一起,夹层内装有上偏光片3、液晶分子4、三基色滤色板5、和下偏光片6,上偏光片3和下偏光片6相互垂直放置,中间的液晶分子4规律排列呈透明状态,当向公共电极2和像素电极7施加驱动电压时,电场引起液晶分子4排列方向改变而遮挡光线,从而达到控制玻璃透明度的效果,当控制某个像素相对应的滤色区域时,可以改变该区的玻璃颜色,当同时驱动多个像素组合时,可以产生显示图形或字符信息。未施加驱动电压的原理示意图如图2所示,光线可以穿过玻璃呈透明状,如图3所示是施加驱动电压后,光线被液晶分子4遮挡而降低玻璃透明度。
Claims (7)
1.一种使用液晶显示技术的汽车档风玻璃,其构造特征是,由上层玻璃、公共电极、上偏光片、液晶分子,三基色滤色板、下偏光片、像素电极、下层玻璃组成,其实现原理是,上层玻璃和下层玻璃内侧镀膜形成公共电极和像素电极,上层玻璃和下层玻璃叠放在一起,夹层内装有上偏光片、液晶分子、三基色滤色板、和下偏光片,上偏光片和下偏光片相互垂直放置,中间的液晶分子规律排列呈透明状态,当向公共电极和像素电极施加驱动电压时,电场引起液晶分子排列方向改变而遮挡光线,从而达到控制玻璃透明度的效果,当控制某个像素相对应的滤色区域时,可以改变该区的玻璃颜色,当同时驱动多个像素组合时,可以产生显示图形或字符信息。
2.根据权利要求1所述的一种使用液晶显示的技术汽车挡风玻璃,其特征是,所述的一种使用液晶显示技术的汽车档风玻璃,可以是应用于汽车的前档风玻璃,也可以是应用于汽车的后档风玻璃,也可以是应用于汽车的侧玻璃,也可以是应用于建筑物的窗户玻璃。
3.根据权利要求1所述的一种使用液晶显示技术的汽车挡风玻璃,其特征是,所述的上层玻璃和下层玻璃是由两片高强度钢化无钠玻璃粘合组成,也可以是由其它软性复合材料或钢化复合材料组成,它以叠层结构组合在一起,以固定中间的上偏光片、下偏光片、三基色滤色板和使液晶分子按需排列。
4.根据权利要求1所述的一种使用液晶显示技术的汽车挡风玻璃,其特征是,所述的公共电极和像素电极是一种具有透明特性的导体镀膜层,也可以是任何具有透明和导电特性的薄膜或镀膜层,它被镀上或喷涂在夹层玻璃的内侧,像素电极是依照需要而设定大小的点状电极,它的大小决定透光或遮光面积,多个像素组合可产生图形或文字信息。
5.根据权利要求1所述的一种使用液晶显示技术的汽车挡风玻璃,其特征是,所述的上偏光片和下偏光片是一种具有偏振光效应的PVA材料,也可以是由其它具有偏振光效应的材料组成,上偏光片和下偏光片导光方向相互垂直,结合液晶分子排列达到透光和遮光效果。
6.根据权利要求1所述的一种使用液晶显示技术的汽车挡风玻璃,其特征是,所述的液晶分子是一种介于晶体和液体的有机化合物,它具有电场作用下改变排列方向的特性。
7.根据权利要求1所述的一种使用液晶显示技术的汽车挡风玻璃,其特征是,所述的三基色滤色板,是一种与像素面积和位置对应的红、蓝、绿三基色过滤器件,它具有阻隔其它光谱只限对应基色光谱通过功能。
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CN105235481A (zh) * | 2015-10-30 | 2016-01-13 | 福耀玻璃工业集团股份有限公司 | 一种发光效果可调的车辆天窗总成 |
CN105291788A (zh) * | 2015-10-30 | 2016-02-03 | 福耀玻璃工业集团股份有限公司 | 一种发光效果可调的车辆天窗总成 |
CN105467636A (zh) * | 2016-02-17 | 2016-04-06 | 京东方科技集团股份有限公司 | 一种光线控制膜、其制备方法及车载用显示屏 |
CN105522895A (zh) * | 2016-01-29 | 2016-04-27 | 杨檩 | 车用电控液晶调光分区挡光板及其控制方法 |
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CN113359338A (zh) * | 2021-06-04 | 2021-09-07 | 巽腾(广东)科技有限公司 | 一种智能玻璃及其控制方法 |
WO2022111077A1 (zh) * | 2020-11-26 | 2022-06-02 | 京东方科技集团股份有限公司 | 一种调光玻璃窗及交通工具 |
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