Sony Ericsson is the last one from the “great five” to pay attention to touch interface in mobile phones. The company filed for a patent, which deals with a touchscreen displaying virtual buttons in compact devices.

There are no patent details, which make it original, especially taking into account existing models with the implemented idea. Probably Sony Ericsson will be able to derive benefit from similar products by other companies.

The source doesn’t say whether Sony Ericsson would develop products based on its recent concept, however that’s possible.