| 摘要 |
PROBLEM TO BE SOLVED: To make a flicker generated by light control not conspicuous in an OCB mode liquid crystal display panel. SOLUTION: The light source apparatus is provided with lamp light sources BL1, BL2 and BL3 respectively illuminating a plurality of display regions into which a screen of a display panel is divided and a backlight driving circuit LD driving the lamp light sources BL1, BL2 and BL3. The backlight driving circuit LD includes a dimmer function controlling circuit 10 generating light controlling signals S1, S2 and S3 whose phases are set to be different from each other by a common duty ratio adjusted as a lighting time per a fixed time and driving parts 11A, 11B and 11C respectively driving the lamp light sources BL1, BL2 and BL3 corresponding to the light controlling signals S1, S2 and S3 generated from the dimmer function controlling circuit 10. COPYRIGHT: (C)2006,JPO&NCIPI |
