| 摘要 |
PURPOSE:To produce a display plate having a large area inexpensively by forming the display plate forming a high molecular liquid crystal film of which both sides are sandwiched between plural linear transparent electrode films on one side and a linear thermal head to be moved in the display plate on a base board. CONSTITUTION:An electric field and heat are simultaneously and selectively applied to an optional position on a two-dimensional surface to generate display operation by impressing the electric field selectively by transparent electrode groups 5, 6 independently formed on both the sides of the high molecular liquid crystal film 4 and impressing heat selectively by moving the linear thermal head 8 constituted of a fine heating element array formed on the film 4. On the other hand, display is erased by impressing only heat to the film 4 by the thermal head or another heating means. Consequently, the display plate having a large area can be inexpensively produced. |
