To increase the detection sensitivity of a touch panel, provide a thin touch panel, provide a foldable touch panel, or provide a lightweight touch panel. A display element and a capacitor forming a touch sensor are provided between a pair of substrates. Preferably, a pair of conductive layers forming the capacitor each have an opening. The opening and the display element are provided to overlap each other. A light-blocking layer is provided between a substrate on the display surface side and the pair of conductive layers forming the capacitor.

A utilizing function apparatus include at least one processor, and a memory storing instructions that, when executed by the at least one processor, causes the at least one processor to, based on an operation, set one of at least one function temporarily unable to be executed, when it is detected that the utilizing function apparatus is connected to an external device after setting the one function temporarily unable to be executed, acquire information about an area of the memory of the utilizing function apparatus, as first information, when it is detected that the connection with the external device is released, acquire the information about the area of the memory, as second information, and when the acquired first information and second information are different, set the one function back able to be executed.

To increase the detection sensitivity of a touch panel, provide a thin touch panel, provide a foldable touch panel, or provide a lightweight touch panel. A display element and a capacitor forming a touch sensor are provided between a pair of substrates. Preferably, a pair of conductive layers forming the capacitor each have an opening. The opening and the display element are provided to overlap each other. A light-blocking layer is provided between a substrate on the display surface side and the pair of conductive layers forming the capacitor.

The present invention provides a calculator capable of outputting results based on handwritten formulas, wherein the calculator has at least one writing area, and can output the calculation results of the handwritten formulas in the writing area, wherein the setting of the writing area does not compromise the functional completeness of the calculator compared to a traditional calculator, and also does not change the operating habits when using the calculator as a traditional calculator, that is, the calculator provides different methods to obtain calculation results and allows verification of the calculation results obtained using an alternative method. This reduces the probability of errors in the calculation results caused by user mistakes when compared to verifying the calculation results using the same method.

A cover component is disposed at a position to abut on at least one fastening screw exposed on a back surface of a scientific calculator when the cover component is attached to the back surface of the scientific calculator.