1. A de-interlacing device for generating data of a plurality of corresponding pixels according to data of a plurality of selected pixels in a field of an interlaced image, the device comprising: a first de-interlacing unit; a second de-interlacing unit, wherein the second and first de-interlacing units use different de-interlacing methods; and a pattern recognizing unit for recognizing whether or not the data of the selected pixels has a special pattern, wherein: the pattern recognizing unit outputs the data of the selected pixels to the first de-interlacing unit and then the first de-interlacing unit generates the data of the corresponding pixels accordingly if yes; and the pattern recognizing unit outputs the data of the selected pixels to the first de-interlacing unit and then the second de-interlacing unit generates the data of the corresponding pixels accordingly if not.