Abstract: A liquid crystal display apparatus for displaying an image on a liquid crystal cell through a liquid crystal driver driven by a predetermined number of bits by inputting image data in which one pixel is represented with a plurality of sub-pixels. The liquid crystal display apparatus includes: memory for storing information about an offset for converting gray level coordinates of a gamma characteristic spaced evenly according to the number of bits into gray level coordinates spaced unevenly; a gray level adjustment portion for performing a calculation on particular input sub-pixel data based on information about the offset stored in the memory; and a pseudo-gray-level-expansion portion for applying pseudo gray level expansion to the sub-pixel data calculated by the gray level adjustment portion. The sub-pixel data to which the pseudo gray level expansion is applied by the pseudo-gray-level-expansion portion is supplied to the liquid crystal driver to display the image on the liquid crystal cell.

Abstract: A LCD device has a decreased number of required transmission lines. The first interface circuit, which is provided in the controller circuit, receives the polarization reverse signal and the horizontal scanning signal in parallel in such a way that the polarization reverse signal and the horizontal scanning signal have their active periods at different timings. The first interface circuit generates a serial signal from the polarization reverse signal and the horizontal scanning signal, and transmits the serial signal to the data electrode driver circuit by way of the transmission line or lines. The second interface circuit, which is provided in the data electrode driver circuit, regenerates the polarization reverse signal and the horizontal scanning signal in parallel from the serial signal.

Abstract: A plasma display panel and a driving apparatus, and method of operation thereof, that is capable of improving brightness. A plurality of sustaining electrode groups formed on a front substrate consist of at least three electrodes. The at least three electrodes are set to have a different distance from each other, thereby generating at least two discharges continuously. Each group of three electrodes has a center electrode and two side electrodes, the two side electrodes being spaced at different distances from the center electrode.

Abstract: A monitoring system for a display unit includes phototransistors for detecting light emitted from a plurality of selectively energizable light-emitting diode (LED) segments in an energized state and for generating a voltage which is representative of the light emitted from the LED segments in the energized state. A glass filter filters ambient light from the phototransistors and passes the light emitted from the LED segments in the energized state. A comparator for each of the LED segments generates a comparison signal, with the comparison signal being representative of a comparison between a predetermined reference voltage and the voltage for each of the LED segments. A conditional power supply conditionally energizes the LED segments in response to an energizing signal. A routine of a central processing unit generates display data.

Abstract: A method for driving an optical modulation device having a group of scanning electrodes and a group of signal electrodes arranged so that picture elements are defined at the intersections therebetween and a bistable optical modulation material assuming one of two stable states between the groups of electrodes, by in a first phase orienting the bistable material at the picture elements on an N-th scanning electrode to one stable state, and applying a writing signal to the signal electrodes in synchronism with a scanning signal to the N-th scanning electrode while orienting the bistable material at the picture elements on an N+1-th scanning electrode to the one stable state.