Abstract: The organic electroluminescence module has a touch function of detecting contact or proximity of an operation body. The module has a touch detection circuit unit with a capacitance touch detection circuit section; and a light emitting element drive circuit unit comprising a light emitting element drive circuit section which drives an organic electroluminescence panel. The organic electroluminescence panel has light emitting areas and a pair of at least two plate electrodes that are internally and mutually opposed. The pair of electrodes is connected to the light emitting element drive circuit unit. One of the pair of electrodes is a touch detection electrode. Either one or both of the pair of electrodes is connected to the touch detection circuit unit. A first electrode of the pair of electrodes is divided into portions while a second electrode of the pair of electrodes is a single piece. The same potential is applied at least to the divided portions of the first electrode during a touch detection period.

Abstract: A touch switch is composed of an EL light emitting layer configured by stacking a fluorescent layer and an insulation layer between first electrodes and a second electrode, a judgment unit for making a judgment on touch manipulation with the first electrode by an operator and an EL driving unit for driving the EL light emitting layer for light emitting, with each of a plurality of first electrodes, each of plurality of fluorescent layers and each of plurality of insulation layers being provided as a set and the second electrode being provided as a single electrode with respect to the plurality of first electrodes, wherein the judgment unit makes a judgment on which of the plurality of first electrodes has been touched by an operator on the basis of a high-frequency component inputted from the second electrode through the first electrode each time the touch switch is touched by an operator.

Abstract: The inventive code key comprises a bendable element and a strain gauge connected to the bendable element. The strain gauge changes resistance when the bendable element is moved.

Abstract: A key top comprises a key top base comprising a side portion and a top portion having a specified color, a colored portion provided at a part of the top portion and having a color different from the specified color of the top portion, and, a protective layer composed of a transparent material having an abrasion resistance and covering at least the colored portion.