OMR CARD USING BY LCD PANEL

摘要

An OMR(Optical Mark Reader) card which is operated by using an LCD(Liquid Crystal Display) panel is provided to construct the OMR card by using an LCD panel with liquid crystal marked by selectively operating switches so as to correct and repeatedly use the OMR card. An OMR card(10) is constructed using a rectangular transparent LCD panel(30) including polarizers, electrodes, alignment films and liquid crystal. A marking point of the OMR card is charged with the liquid crystal, and a switch is provided at one side of the marking point. The switch selectively supplies battery power to the liquid crystal.