Patent ID: 7365730

Claim:
A double-sided liquid crystal display device, comprising: a double-sided light source assembly emitting light from both sides thereof, the assembly including a planar structure and a light-emitting-region changing device, the light-emitting-region changing device including a plurality of light sources; first and second liquid crystal display panels, provided adjacent to opposite sides of the double-sided light source assembly, the first liquid crystal display panel being larger than the second liquid crystal display panel, the light source assembly functioning as a backlight for the display panels; and a control device to perform control of the light-emitting-region changing device to drive all of the light sources in synchronization with a display timing of the first liquid crystal display panel, and to drive only a number of the light sources in synchronization with a display timing of the second liquid crystal display panel, the number of light sources being less than all of the light sources so that more light sources are driven during display timing of the larger first liquid crystal display panel than during display timing of the smaller second liquid crystal display panel.