Patent ID: 6774880
Filing Date: 2004-08-10
Classification: G02F,G09G

Abstract:
A photo-addressable type recording display apparatus comprising:a photo-addressable type recording display medium provided with a memory display element layer having a predetermined impedance and a light switching element layer having an impedance that is variable depending on irradiation with light laminated on the display element layer and electrically connected in series to the display element layer; a pattern light irradiation source that irradiates the photo-addressable type recording display medium with a pattern light that has been converted corresponding to image information; a pulse voltage application part that applies a predetermined pulse voltage to the photo-addressable type recording display medium; and a driving control part that controls the pulse voltage applied by the pulse voltage application part in accordance with a result of comparison between the predetermined impedance of the display element layer and the impedance of the light switching element layer varied depending on the quantity of light from the pattern light irradiation source for controlling a pulse waveform and a voltage amplitude of the voltage applied to the display element layer, thereby controlling the display state of the photo-addressable type recording display medium.