COLOR MULTILEVEL IMAGE DISPLAY DEVICE

摘要

PURPOSE:To facilitate the execution of repetitive recording of color multilevel images without using ink by controlling the heating quantity to a recording member formed by sticking a high polymer-liquid crystal composite film to a base material and executing the multilevel image display by the density corresponding to the heating quantity in the picture element unit of the main scanning direction of a thermal head for each of color information. CONSTITUTION:The multilevel image display by the density corresponding to the heating quantity is executed by controlling the heating quantity to the recording member 1 formed by sticking the high polymer-liquid crystal composite film 3 to the base material 2 in the picture element unit of the main scanning direction of the thermal head 8 for each of the color information. Namely, the high polymer-liquid crystal composite film 3 formed by dispersing a liquid crystal 3a into the high-polymer material 3b is used as the recording part of the recording member 1 and such an electric field as to orient the liquid crystal 3a in a specified direction is applied to the recording member 1 by using an erasing roller 6 to prevent the irregular reflection of light to attain a transprent state. The recording member 1 is heated by a thermal head 8 to control the heating quantity, by which the gradation recording is executed. The member is made transparent and reusable when the electric field is impressed again thereto after use.