Patent ID: 8077276

Claim:
A display system comprising: a dimming device capable of switchably presenting a light reflecting state or a light transmitting state; and a display device for performing display by modulating incident light; wherein the dimming device is a dimming device having a layered structure including a first layer and a second layer, such that a light reflectance of the first layer changes in response to an external stimulation; the first layer contains a first material whose optical characteristics change in accordance with a concentration of a specific element; the second layer contains a second material capable of containing the specific element, the second material releasing or absorbing the specific element in accordance with the external stimulation; the element is hydrogen, and the first material is able to transition between a light reflecting state and a light transmitting state in accordance with a hydrogen concentration; the second layer contains a hydrogen storage material; and the display system operates in a region where respective hydrogen equilibrium pressure-composition isotherms (PTC characteristic curves) of the first layer and the second layer are substantially flat.