Patent ID: 6829020
Filing Date: 2004-12-07
Classification: B41J,B41M,G02F

Abstract:
A method for recording an image on a thermosensitive image bearing medium that contains liquid crystal material exhibiting a cholesteric phase at a temperature range higher than a room temperature, said method comprising the steps of:(a) heating the liquid crystal material contained in a first region of the thermosensitive image bearing medium at a first temperature for a first time period by applying a first energy, thereby causing the first region to change from a base color to a first color; and (b) heating the liquid crystal material contained in a second region of the thermosensitive image bearing medium at a second temperature for a second time period by applying a second energy, thereby causing the second region to change to a second color, the second color being different from the first color, the first temperature being higher than the second temperature and the first time period being shorter than the second time period, wherein the (a) is executed simultaneously with the step (b).