Abstract: A channel scanning method for Digital Video Broadcasting-Satellite (DVB-S) signals is provided. The method includes: scanning a radio frequency (RF) signal according to a normal frequency step; when the Nth channel is detected, obtaining a difference between a low boundary of an Nth channel and a high boundary of an (N?1)th channel; and, when the difference is within a predetermined bandwidth range, scanning the RF signal between the high boundary of the (N?1)th channel and the low boundary of the Nth channel according to a narrow frequency step. The normal frequency step is greater than the narrow frequency step.

Abstract: A stage lighting apparatus includes a lamp and a first light valve, which cooperate to project a first image and a second image wherein the second image is created by applying a function to a plurality of pixels of the first image. The plurality of pixels of the first image may be arranged in a straight line. Applying the function to the plurality of pixels of the first image may cause first, second, third, and fourth sets of the plurality of pixels to deviate from the straight line in first, second, third, and fourth directions, respectively.

Abstract: In a liquid crystal display device for displaying a three dimensional image, it is possible to obtain a three dimensional image having appropriate colors corresponding to the colors of objects wherein the data lines are not shown in the picture, the colors of the picture formed in a lens for dividing the left and right images are not formed on the same surface or run counter to one another on the same surface, and the colors are not separately formed by electrically connecting the gate lines corresponding to the color pixels to one another and detouring the source (data) lines so as not to pass through the pixel area and arranging them at the edge thereof. Furthermore, the separate color pixels of red, green and blue of the liquid crystal display panel are arranged in a vertical line, and the separate color pixels of the same color are arranged in the horizontal direction.