MATERIAL FOR PLOTTING HANDWRITING AND WRITING IMPLEMENT USING THE SAME, METHOD FOR DISPLAYING LIQUID CRYSTAL BOARD PATTERN, SHEET FOR DISPLAYING LIQUID CRYSTAL BOARD PATTERN AND METHOD FOR DISPLAYING LIQUID CRYSTAL PATTERN USING THE SAME

摘要

PURPOSE: To make it possible to easily display patterns, such as characters and graphics, on a liquid crystal board screen at need or to erase these patterns by using a conductive material for plotting handwriting and previously plotting the patterns on the liquid crystal board screen or pattern plotting sheet if the plotting of the patterns on the screen of the liquid crystal board at every time is difficult. CONSTITUTION: This material for plotting the handwriting is used to obtain the handwriting having sheet resistivity of <=10<8>Ω/sq. This sheet for displaying the liquid crystal board patterns has the characters, graphics, etc., plotted by the handwriting having the surface resistance of <=10<8>Ω/sq. on a film-like material. This method for displaying the liquid crystal board patterns comprises placing the sheet for displaying the liquid crystal dot patterns on the display screen of the liquid crystal board having the liquid crystal dispersed polymer layer finely dispersed with the liquid crystals in a polymer matrix, a conductive layer and the display screen recordable by the electric charges from outside and displaying the patterns on the screen of the liquid crystal board by impressing electric fields between at least one point of the patterns of the sheet for displaying the patterns and the conductive layer of the liquid crystal board.