Optical Touch: The Ideal Technology For All-In-One PCs

There are more than a dozen different touch technologies; each with its own strengths and weaknesses within various markets, industries and applications.  For the desktop and all-in-one PC segment, which encompasses screens from 15 to 30 inches, leading PC manufacturers such as HP and Dell are choosing optical technology.

How Does Optical Work?

Working in concert, two optical sensors located at the top left and right corners of the screen track the movement of any object close to the surface by detecting the interruption of an infra-red light source. At the heart of the system is a printed circuit controller board that receives signals from the optical sensors.  Its software then compensates for optical distortions and triangulates the position of the touching object with extreme accuracy. 

Why optical?

There is no perfect touch technology for all applications, however optical has big advantages when it comes to desktop computers:

• Clarity of image (no films or coatings) which is an important attribute for viewing images
• Fast drag function means you can draw quick brush strokes with accuracy
• Stylus independence allows you to use a finger, pen, brush, or any object to interact with the screen
• Light-touch response for ease of use and screen durability to accommodate users of all ages and levels
• Multi-touch capability, enabling the screen to support built-in gestures within Windows 7
• Performance and reliability even in harsh lighting and outdoor environments
• Low cost to ensure availability to everyone

In the coming year you'll see a handful of new PCs hitting the market with optical touch screens. The choices among top PC vendors will be plentiful, offering something for everyone. With optical, we can ensure that your touch screen experience will be elegant, smooth, and fun. But don't take our word for it. Check out any Dell Studio One 19 or HP TouchSmart all-in-one PC to see the NextWindow optical touch technology in action.