Patent ID: 8552936

Claim:
An OLED device, comprising: an OLED light source, a capacitive proximity sensing means for sensing a change in a capacitance, a mechanical element, and a means for providing a signal, wherein the OLED light source and the mechanical element are movable relative to each other upon operation by a user and can assume a first position or a second position, wherein the capacitance is adapted to change between a first capacitance and a second capacitance when the OLED light source and mechanical element are moved between the first position and the second position by an operator, and wherein the signal depends upon the capacitance, wherein the OLED light source comprise a first electrode layer, an organic light emitting layer, and a second electrode layer, wherein the organic light emitting layer is between the first electrode layer and the second electrode layer, wherein the mechanical element comprises a conductive element adjacent to one of the first electrode layer or the second electrode layer, and wherein capacitance is formed between the one of the first electrode layer and the second electrode layer and the conductive element.