Patent ID: 7889414

Claim:
A reflection type display apparatus comprising: a first light modulating layer for controlling electrically and externally a light absorbing state and a light transmitting state; a second light modulating layer for controlling electrically and externally a light reflecting state and the light transmitting state; and a reflector for reflecting light of a particular wavelength band, wherein the first and second light modulating layers and the reflector are arranged in order from a light incidence side, and wherein the first light modulating layer comprises a first electrode including a light transmitting property arranged at the light incidence side, and a first counter electrode disposed in opposition to the first electrode sandwiching a first electrolytic solution containing a first metal ion between the first electrode and the first counter electrode, for controlling the light absorbing state and the light transmitting state according to depositing of the first metal ion onto the first electrode and according to dissolving of the first metal ion into the first electrolytic solution, wherein the second light modulating layer comprises a second electrode including a light transmitting property arranged at an opposite side of the first counter electrode to a light incidence side of the first counter electrode, and a second counter electrode disposed in opposition to the second electrode sandwiching a second electrolytic solution containing a second metal ion between the second electrode and the second counter electrode, for controlling the light reflection state and the light transmitting state according to depositing of the second metal ion onto the second electrode and according to dissolving of the second metal ion into the second electrolytic solution, and wherein the reflector is arranged at a side of the second counter electrode opposite to a light incidence side of the second counter electrode.