Patent ID: 6972780
Filing Date: 2005-12-06
Classification: B41M,G09G

Abstract:
1. A thermal image generation device comprising a thermochromic material; at least one thermal transfer element movable over regions of the thermochromic material to alter a temperature at the regions from a steady-state, ambient temperature to temporarily cause a color variation of the thermochromic material until the regions of the thermochromic material return to the ambient temperature; a driving circuit to adjust at least one of voltage and current for controlling activation and deactivation of the at least one thermal transfer element; mechanical logic to control placement of the at least one thermal transfer element bounded by a perimeter formed by the thermochromic material; a processor coupled to the driver circuit and the mechanical logic; and a sensor coupled to the processor, the sensor to monitor a temperature of the at least one thermal transfer element and to feedback data to the processor to enable the processor to control the driving circuit and the mechanical logic.