Abstract: Each opto-mechanical pointing device includes a housing having a base that two or more rollers extend beyond to make contact with a surface. An optical module that includes a light source and a detector track the motion of the opto-mechanical pointing device directly or indirectly. Light reflecting off markings positioned opposite of each detector is used to determine the speed and distance traveled by an opto-electrical pointing device. Alternatively, the speed and distance traveled by an opto-electrical pointing device is determined by monitoring the tilt or rotation of the opto-mechanical pointing device with respect to the surface beneath the pointing device.

Abstract: A liquid crystal display device with no flicker and with bright excellent display is provided. A polarity pattern of a conventional frame inversion driving is one kind of display. A polarity pattern of a conventional source line inversion driving is two kinds of display, and a disclination pattern is one kind of display. On the contrary, in a circuit structure of the present invention, polarity patterns are made to have not less than four kinds, and disclination patterns are made to have not less than two kinds. By this, bright display in which flicker is not included and poor display due to disclination is improved, can be obtained.

Abstract: A display device includes a plurality of pixel cells divided into at least a first pixel cell group and a second pixel cell group; a first data line electrically connected to the pixel cells in the first pixel cell group, and a second data line electrically connected to the pixel cells in the second pixel cell group; and a gate driver driving at least one of the pixel cells in the first pixel cell group concurrently with at least one of the pixel cells in the second pixel cell group.

Abstract: A driving circuit of a display device includes a timing controller for combining p first digital data signals (p being a positive integer greater than 1) corresponding to colors for displaying images to generate q second digital data signals and for supplying the q second digital data signals to first to qth data transmission lines (q being a positive integer smaller than p), and a plurality of data driver integrated circuits for processing the q second digital data signals from the timing controller to restore the p first digital data signals, converting the p restored digital data signals into analog data signals, and supplying the analog data signals to a display panel.