Patent ID: 8704750

Claim:
A control apparatus used in a three-dimensional (3D) display apparatus, comprising: an image processing unit, for generating an interval signal according to an image source signal, with the interval signal having a plurality of first timing intervals and a plurality of second timing intervals; and a backlight control unit, for generating a backlight control signal in response to the interval signal, the backlight control signal being configured to control an illuminating area of a backlight device so that the illuminating area provides a first luminance in the first timing intervals and a second luminance in the second timing intervals in sequence, wherein each first timing interval is an image frame update interval, each second timing interval is a vertical blanking interval (VBI), and the plurality of first timing intervals and the plurality of second timing intervals are adjacent to each other and are time-interleaved, wherein the backlight control device is configured to generate a plurality of backlight control signals comprising a first backlight control and a second backlight control signal according to the interval signal, and the backlight device comprises a first light-emitting area corresponding to the first backlight control signal and a second light-emitting area corresponding to the second backlight control signal, wherein each first timing interval comprises a first sub-interval and a second sub-interval, and each second timing interval comprises a third sub-interval and a fourth sub-interval, and, wherein the first light-emitting area provides the first luminance in the second sub-interval of each first timing interval and in the third sub-interval of each second timing interval according to the first backlight control signal, and the first light-emitting area provides the second luminance in the first sub-interval of each first timing interval and the fourth sub-interval of each second timing interval according to the first backlight control signal.