HTC patents stylus for capacitive touchscreens

HTC patents stylus for capacitive touchscreens
Many cellphone users prefer a capacitive touchscreen over a resistive one. The former is the type of display you will find on the iPhone, the BlackBerry Storm and the G1,among others. It works with a finger and will not work with a regular stylus. The latter display is what you will find on the LG Dare or even the Touch Pro2. This screen works when two layers are forced together by use of a finger or a stylus, a pen cap or anything that can apply pressure to the screen.

While many owners of touchscreen devices prefer the capacitive screens because of their sensitivity to touch, there are many who prefer the precision of using a stylus. It could be that someone with large fingers cannot click on the correct links. In some Asian markets, using a stylus is greatly preferred over the use of one's fingers on a touchscreen handset. And yet, for many, a capacitive screen conveys a sense of a higher quality device. The problem here is how to get the sensitivity and richness of a capacitive display together with the precise data entry of a stylus on a resistive screen. HTC has stepped in with a solution that seems to appease most touchscreen users. The Taiwanese firm has patented a magnetic stylus that will work on a capacitive display to allow those who favor using a pointing device to have one that will allow for precise clicking on a link and still allow for the greater sensitivity and higher build quality than one would have with a resistive screen.

The HTC stylus has a magnetic head that produces a current. When the current comes in contact with a capacitive screen, the screen responds the same way as if it were touched by a finger, but with more precision. HTC's product allows users to be precise while at the same time, allow for the rich appearance and responsiveness of a capacitive display.

source: U.S. Patent and Trademark Office via WMPoweruser


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4 Comments

1. LGVX1993

Posts: 260; Member since: Jan 27, 2009

Now this is what ive been wanting for a while.

2. Kiltlifter

Posts: 742; Member since: Dec 11, 2008

Good for HTC. I dig their constant drive for innovation.. but I have to ask... Why did it take 4 years for someone to decide to make a capacitive stylus? Is this the first one available, or are their others? But HTC could sell this as a stand alone accessory for iPhone and Storm owners to use as well.

3. tuminatr

Posts: 1121; Member since: Feb 23, 2009

I would bet someone will license the tech

4. Copyright Attorney unregistered

Here is a similar story HTC has patented a stylus recently, where this supposedly magical peripheral is able to interact with capacitive touchscreens including the ones found on the HTC Dream and Magic alongside rivals such as the iPhone. Current styluses can be used on resistive touchscreens that respond to pressure without picking up electrical resistance created by the human finger, quite unlike capacitive touchscreens that do otherwise. In order to achieve this, HTC threw in a magnetic head so that the new stylus is more accurate than a human finger while being compatible with capacitive screens in the process.

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