DISPLAY DEVICE WITH PHOTOELECTRIC CONVERSION FUNCTION

摘要

PROBLEM TO BE SOLVED: To obtain large electric power from a photoelectric conversion device in the state that a display of a light transmissive display plate can be seen as usual in a display device with a photoelectric conversional function provided with the light transmissive display plate having transmissivity for a lighting beam, a light reflective/transmissive plate having reflectivity and the transmissivity for the beam transmitted through the former plate and the photoelectric conversion device photoelectric-converting the beam transmitted through the second plate. SOLUTION: The light reflective/transmissive plate 2 is constituted so as to be provided with the transmissivity that the transmissivity for the beam of a wavelength region of an intended wavelength or below sufficiently far parting from a visible ray wavelength region in an infrared ray wavelength region is higher than that for the beam of the visible ray wavelength region, and further, the photoelectric conversion device 3 is constituted so as to be provided with the photoelectric conversional functional for both of the beam of the visible ray wavelength region and the beam of the wavelength region of the intended wavelength or below sufficiently far parting from the visible ray wavelength region in the infrared ray wavelength region.