随着车内显示屏增多，怎么减少中控娱乐屏、副驾屏对驾驶员的干扰成为确保驾驶安全的一大重点。目前，大陆集团、伟世通、马瑞利、龙腾光电等知名车载显示屏供应商都发布了类似定义的产品，他们叫法或存在不同，但原理基本相似。今天，小编就盘点一下目前业界的防窥显示技术。
初级定向显示-贴防窥膜
随着智能显示产品越来越多，越来越大。为了维护个人隐私，“防窥膜”这个概念开始从手机、笔电等消费类电子行业兴起。这时的防窥主要是通过采用贴防窥膜来实现。
防窥膜的原理与百叶窗类似，百叶窗通过调整叶片角度阻挡外界视线，防窥膜正是利用百叶窗的原理，将百叶窗的结构缩小上万倍，将光栅间隔控制在0.02-0.1毫米之间，通过并列排布的光栅结构实现控制屏幕可视角度的效果，从而达到防偷窥的目的。
比如说3M官网上面这款膜的介绍：
车载显示防窥与安全：定向背光技术
大陆集团-高度定向背光显示屏
这一技术的核心是高度定向的背光。在私人模式下，高度定向背光使显示屏上的内容仅供乘客所见。在交通状况允许的前提下，显示屏可以切换到共享模式，此时驾驶员和乘客都可以体验特定的内容。随着娱乐配置在汽车中变得越发普遍，像视角可控显示屏这样的技术对于减少驾驶员分心来说至关重要。
伟世通-主动隐私技术Active Privacy
马瑞利-可切换的动态防窥技术
龙腾光电-车载四向防窥显示面板
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二、收费标准
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Number of attendees. |
1~2 people |
3 people or more |
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7月13日前付款 |
2800 yuan per person |
2700 yuan per person |
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On-site payment. |
3000 yuan per person |
2800 yuan per person |
★费用包括会议门票、全套会议资料、午餐、茶歇等，但不包括住宿；
The original article was posted on the WeChat official account "Smart Car Club."车载显示屏近期热点-定向背光防窥技术
Recently, vehicles equipped with integrated black, large-sized displays have gained recognition among many consumers, becoming a hot topic in the industry. Of course, curved displays, 3D glass, large multi-screen setups, OLED, and other hot topics have always been the focus of competition among major manufacturers. In such an industry landscape, Aibang has established a car display communication group. Currently, upstream and downstream enterprises in the display and bonding industry chain, such as FAW, SAIC, Geely, Great Wall, Changan, Harman, Marrelli, Huayang, Desay SV, Hangsheng Electronics, Tianma, BOE, TPK, Changxin Technology, Xinli, Lai Bao, Lanshi, Bern, Teyi, Victory Precision, Xingxing Technology, TDK, VAC, 3M, Tongli Optoelectronics, Corning, Schott, AGC, Nippon Electric Glass, Sumitomo, and Sabic, have joined. All friends are welcome to join the group for discussions and mutual progress.
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