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Adaptable virtual touch screen on handheld devices Disclosure Number: IPCOM000232535D
Publication Date: 2013-Nov-15
Document File: 5 page(s) / 136K

Publishing Venue

The Prior Art Database


This disclosure describles a method to generate an adaptable virtual touch screen on hand-hold device, which can help users to use the device easiler, espeically for the large-screen device. With this innovative method, users can touch everyplace of the screen with only one finger of the same hand which hold the device.

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Adaptable virtual touch screen on handheld devices

 Nowadays as touch screen mobile devices(smart phone, PDA etc) become popular, their screen size become bigger, too. So that it becomes hard to operate on the device with one single hand. For example, for an adult person, holing a cell phone with 30cm screen, it's easy to touch everyplace of the screen with a finger of the same hand , but it becomes hard if turning to a 60cm screen.

To solve the problem, a simple way is to use another hand to touch the screen, and the drawback of it is obvious. It could be inconvenient in some situations, for example, in crowded places (in a crowded) or your other hand is not free, and it could be even trouble for the disabled people.

Another way is to use voice control, user can define a set of voice control commends for those unreachable applications on the screen, and when they need them, just use their voice to control them. It works but not suitable when in public area. People around would be disturb.

So we are looking for a new way that user can still use one hand to control the device no matter how bit it is, and do not disturb people around as well.

This invention is to create an adaptable virtual touch screen which is a smaller size touch screen of the device. The core ideas contain:

1) The virtual touch screen is semitransparent and contains all icons and actions like the original screen.

2) Those icons, texts and graphics, etc, are scaled down according the proportion of the virtual touch screen and the original screen.

3) To activate the virtual touch screen, the original touch screen needs to accept an action that defines the position and the size of the virtual screen.

4) On the virtual touch screen, there will be an icon appear to close the virtual touch screen if user doesn't want to use it anymore.

The advantages:

1) This invention removes the difficulty when single-hand operation on a big touch screen.

This invention is to float a virtual touch screen (VTS) which is smaller than the current screen, for User, It would be more convenient and friendly to do actions on it.

The VTS will appear on the l...