Abstract: A flexible and illuminating multilayer structure wherein the flexible and illuminating multilayer structure has at least two flexible foils laminated together. Each foil has a flexible electrically conductive pattern layer and LED units distributed over the foil, the LED units being electrically contacted with the contact pattern. The LED units of a foil are positioned between positions of the LED units of the other foils. At least one foil of the multilayer structure, towards which at least one of the LED units is configured to radiate light, is transparent to the light. Brightness of the LED units is at least foil-specifically controllable with operational electric power fed to the foils through the contact pattern. The LED units of at least one foil are of a different tone or color or are controlled to output a different tone or color than the LED units of at least one other foil.

Abstract: A flexible and illuminating multilayer structure wherein the flexible and illuminating multilayer structure has at least two flexible foils laminated together. Each foil has a flexible electrically conductive pattern layer and LED units distributed over the foil, the LED units being electrically contacted with the contact pattern. The LED units of a foil are positioned between positions of the LED units of the other foils. At least one foil of the multilayer structure, towards which at least one of the LED units is configured to radiate light, is transparent to the light. Brightness of the LED units is at least foil-specifically controllable with operational electric power fed to the foils through the contact pattern. The LED units of at least one foil are of a different tone or color or are controlled to output a different tone or color than the LED units of at least one other foil.

Abstract: An optical user interface for controlling a portable electric device, such as a portable phone is provided. The user interface comprises a stripe-like optical contact surface, on which the finger of the user of the electric device is placed. A series of images of the fingerprint is taken and processed such that a motion vector or an image of the fingerprint is obtained. The invention provides a small-sized and economical user interface in terms of battery consumption and manufacturing costs.