a and 1b are schematic illustrations showing the structure of a sheet display device according to an embodiment of the present invention fig1 a shows a single fiber display element 3 serving as a display element the display element 3 is a fiber member having a diameter of several tens of u03bcm and composed of an electrode fiber 1 and a polymer layer 2 the electrode fiber 1 penetrates through the center of the display element 3 and is made of a conductive material the polymer layer 2 is applied to the electrode fiber 1 to coat it the polymer layer 2 may be formed on the entire circumference of the fiber electrode 1 or alternatively the polymer layer 2 may be formed on only the portion of the circumference that comes to the display surface side when the display elements 3 are formed into a sheet shaped display device the polymer layer 2 constitutes a display medium of the display device according to the present invention in this embodiment the polymer layer 2 is formed of a material which is obtained by dispersing a liquid crystal as droplets into a resin in the display device the alignment of liquid crystal molecules in the liquid crystal droplets can be switched between a light scattering state and a light transmitting state by applying an electric field such two states are formed by refractive index difference between the two polymers as typically.