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Design Example: Resistive Touchscreen01:14

Design Example: Resistive Touchscreen

A device engineer plays a crucial role in designing user interfaces for mobile devices. One such interface is the resistive touchscreen, which fundamentally consists of two metallic layers: a flexible upper layer and a rigid lower layer, separated by a narrow gap. The high resistance between these two layers is a key characteristic of this design.
When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...

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Updated: Jun 29, 2026

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
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低值电压和可编程图案聚合物分散液晶智能窗口

Zhichao Ji1,2, Zhenyuan Wang1, Hongxu Jin1

  • 1College of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, China.

Polymers
|September 27, 2025
PubMed
概括
此摘要是机器生成的。

研究人员开发了一种新方法,可以显著降低聚合物分散液晶 (PDLC) 智能窗户的驱动电压. 这一突破使能为节能自适应式窗户提供低压可编程模式.

关键词:
在PDLC中,我们可以使用PDLC.低门电压的低门电压.有模式的PDLC.预定位预定位预定位智能窗口 智能窗口 智能窗口

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科学领域:

  • 材料科学 材料科学 材料科学
  • 光电学是指光电子产品.

背景情况:

  • 聚合物分散液晶 (PDLC) 智能窗户为建筑物和车辆提供能源效率,但受到高驱动电压和缺乏可编程控制的限制.
  • 目前的PDLC技术正在与高值电压 (Vth) 以及无法创建动态的多区域光学调制作斗争.

研究的目的:

  • 开发PDLC薄膜的低压预定向策略,以降低驱动电压并实现可编程模式.
  • 调查优化液晶对齐对适应性智能窗口应用程序PDLC性能的影响.

主要方法:

  • 在相分离过程中,应用低压电场 (5V,1kHz) 来预定向液晶分子.
  • 预定向策略优化了垂直对齐和扩大的聚合物孔结构,减少了LC重定向能量障碍.
  • 低成本的光罩被用来制造具有明显Vth区域的可编程图案PDLC片.

主要成果:

  • 门电压 (Vth) 降低了61.2%,从20.6V降至8.0V,这是由于LC对齐的改进和固定能量的减少.
  • 可编程图案PDLC片通过增量电压逐步控制光传输 (图案散射,图案透明,总透明状态).
  • 制造的片实现了可调节的,节能的图案,用于美学设计和多级光学调制.

结论:

  • 拟议的预定向策略有效降低了PDLC智能窗户的驱动电压.
  • 这一进步使得用于适应式智能窗口和智能架构的低压可编程图案PDLC膜的创建成为可能.
  • 该技术为多级光学调制提供了一个可扩展的平台,扩大了节能建筑和车辆中的应用.