Liquid crystal writing film with partial deletion, partial deletion method, multiple voltage output circuit and positioning system

摘要

The present invention relates to a liquid crystal writing film capable of partial erasing, a partial erasing method, a multi-voltage output circuit and a positioning system, wherein the liquid crystal writing film includes a first conductive layer, a liquid crystal layer, and a second conductive layer sequentially arranged. At least one of the first conductive layer and the second conductive layer is divided into two or more conductive regions that are insulated from each other, and determines a position of a region to be deleted through a positioning system, and sets the conductive region based on the positioned erase region. The voltage set in the region is applied, and the voltage forms an electric field set in the region to be deleted to implement the deletion of the region to be deleted. The present invention can implement partial deletion of the liquid crystal writing film by using partial electric fields formed between the set conductive regions of the upper and lower conductive layers, and can quickly determine the position of the partial deletion region, and at the same time store the lighting trajectory. Can be reproduced.