Patent ID: 8018426

Claim:
An electronic device comprising: a first solar cell having a block configured to be inferior in absorption efficiency for light having a predetermined wavelength; and a reflective display configured to carry out displaying by reflecting light having the predetermined wavelength and allow transmission of light other than light having the predetermined wavelength; wherein the reflective display is configured to vary an amount of light having the predetermined wavelength that is reflected; the reflective display is disposed on an outside face of a device package; the block of the solar cell is disposed on a backside of the reflective display; the block has a power generation efficiency, for light having a wavelength other than the predetermined wavelength, which is higher than a power generation efficiency for the light having the predetermined wavelength; and there is substantially no change in a total power generation efficiency of power converted by the block from the light having the predetermined wavelength when the amount of reflected light having the predetermined wavelength is varied.