Subpixel technologies attempt to organize red, green, blue and, exclusively with Clairvoyante Inc.'s PenTile white subpixels into a matrix that can represent any color. Most flat panels use stripes of RGB subpixels; white can be made only by mixing equal amounts of red, green and blue essentially, by turning on all three stripes. The technique, however, yields dimmer whites. PenTile adds a white subpixel and, instead of just stripes, uses a unique subpixel matrix that has an average of only two subpixels per pixel, instead of the normal three.
More important, Clairvoyante has harnessed the physiology of the human eye-brain system. Based on this understanding, a set of algorithms for the company's driver chips makes the overall display appear higher in contrast, sharper and up to twice as bright as a standard display or, alternatively, just as bright, but with half the power consumption.
Intel Corp. has acquired a minority interest in Clairvoyante, and two manufacturers Silicon Works (Daejon, South Korea) and Sitronix Technology Co. Ltd. (Hsinchu, Taiwan) have already begun fabricating PenTile Matrix driver chips for flat panels.