SIMULATION SUCCESS STORIES

Cypress Uses Simulation and Apps to Optimize Touchscreen Design

消费电子

Peter Vavaroutsos, Andy Kiernan, Cypress Semiconductor, San Jose, CA

每次与智能手机、MP3 播放器或汽车中的显示屏交互时,我们都希望这些电容触摸屏能为我们返回一些信息、帮助发送消息或是播放音乐。这些屏幕由基底、黏合剂、透明镜片和铟锡氧化物 (ITO) 电极组成,它们共同构成了这项技术中所用的层叠。触摸屏设计因应用而异,因此需要针对预期环境对层叠进行定制。

在赛普拉斯半导体,工程师们使用 COMSOL Multiphysics® 来针对各类工作条件和使用改进触摸屏的设计。他们开发了一个静电模型来理解 ITO 图案的性能以及测试诸如保护玻璃厚度、层的介电常数及图案参数等设计更改,从而最终优化器件的性能。他们还基于模型开发了 App,使销售或支持领域的同事能够独立分析客户所要求的定制设计,测试及验证他们的设计想法。

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