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Focus on Sensor Design - Let’s Take Apart a Touchscreen Phone! | Cypress Semiconductor

Focus on Sensor Design - Let’s Take Apart a Touchscreen Phone!

Last Updated: 
Oct 08, 2013

Author: Steve Kolokowsky, Trevor Davis

Everyone likes to break things on occasion - it’s fun! And some of us really like to tear open electronic devices just to see what’s inside; of course, it’s even more fun when you don’t have to worry about putting it back together. With today’s consumer electronic devices, taking a product apart can virtually guarantee that it will not go back together, so few people really know what makes up the touchscreen system. In order to understand one of the hottest technologies on the planet, however, it is imperative that we peel back the top layer on a touchscreen phone to see what is inside. Once we do, we’ll discover the technology that makes today’s touchscreens work.

While all consumers can see the outside of today’s hottest cell phones and can see that many of them have a plastic or glass display, most people don’t understand what is underneath and why. We will explore the design and construction of the product sensor, the invisible technology that senses an on-screen finger touch, and even some of the technical tradeoffs that mobile product manufacturers must make when designing a touchscreen product.

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