BACKLIGHT DEVICE FOR LIQUID CRYSTAL DISPLAY, AND LIQUID CRYSTAL DISPLAY DEVICE USING SAME

摘要

PROBLEM TO BE SOLVED: To provide a backlight device for a liquid crystal display that suppresses moving stripes generated on a flash tube when lighting is started in low temperature atmosphere. SOLUTION: In the backlight device 101 for the liquid crystal display equipped with a fluorescent tube 103 constituted by arranging a first electrode and a second electrode, each comprising two lead-in wires and a filament coil provided between the lead-in wires, at both ends of a container in which mercury and noble gas are charged and which has a phosphor and a protection film formed on its inner peripheral surface, and equiped with a case 104 housing it, the mercury is condensed nearby at least one of the first electrode and second electrode during an extinction period of the flash tube 103. More electric power is supplied to filament coils when the fluorescent tube 103 is turned on than during normal illumination. COPYRIGHT: (C)2008,JPO&INPIT