Abstract: A display apparatus includes (a) a display panel having a display picture area formed by scanning electrodes and data electrodes arranged in a matrix; (b) a driver including a first driver for driving the scanning electrodes and a second driver for driving the data electrodes; and (c) a controller for controlling the driver so as to repeat a partial rewriting scanning operation by applying a scanning selection signal to only a part of the scanning electrodes forming the display picture area. In addition, the apparatus operates in an interlace mode when normal field scanning is performed and in a non-interlace mode when partial scanning is being performed to change the position of the cursor. In addition, the apparatus includes a flag memory for setting one bit of data for each electrode.

Abstract: A driving apparatus comprises a driving unit and a drive voltage generating unit. The driving unit includes a scanning electrode driver and a data electrode driver for driving an electrode matrix formed of scanning electrodes and data electrodes. The drive voltage generating unit includes a first means for generating a fixed voltage, a second means for generating a source voltage for providing drive voltages for driving the electrode matrix, and a third means for generating a first voltage equal to a subtraction of the fixed voltage from the source voltage and a second voltage equal to a subtraction of the source voltage from the fixed voltage. The first and second voltages are preferably controlled so as to vary depending on an external temperature.

Abstract: A liquid crystal apparatus comprises a) a liquid crystal device comprising an electrode matrix composed of scanning electrodes and data electrodes, and a ferroelectric liquid crystal; and b) a driving means. The driving means includes a first drive means for applying a scanning selection signal two or more scanning electrodes apart in one vertical scanning so at to effect in one picture scanning in plural times of vertical scanning, and a second drive means for applying data signals in synchronism with the scanning selection signal.

Abstract: A liquid crystal apparatus, comprises: a liquid crystal device comprising scanning electrodes, data electrodes and a ferroelectric liquid crystal disposed between the scanning electrodes and the data electrodes; means for applying a scanning selection signal and a scanning nonselection signal to the scanning electrodes; means for applying data signals to the data electodes in phase with the scanning selection signal; and means for varying the average voltage values of the data signals during the period of applying a scanning selection signal.

Abstract: A display control unit is combined with a display device including scanning and signal electrodes and a display element sandwiched between the scanning and signal electrodes and includes a key or the like for setting drive waveforms for driving the scanning and/or signal electrodes prior to drive timings of the scanning and signal electrodes. In the display device, a ratio of a voltage applied to an intersection between a selected scanning line and a selected information signal line to a voltage applied to an intersection between a non-selected scanning line and a selected information signal line is variably changed in accordance with a temperature change.

Abstract: A display device includes a display having a group of scanning electrodes disposed in a horizontal direction, a group of signal electrodes disposed in a vertical direction, and a liquid crystal with a memory disposed therebetween. The groups of scanning and signal electrodes are opposed to each other and are spaced apart by a predetermined spacing. The display device also includes a mode memory for storing data relating to the selection of a block access mode, in which the scanning electrodes are driven for every block, each block including a plurality of scanning electrodes, and a line access mode, in which the scanning electrodes are driven for every line of the scanning electrodes.

Abstract: An active matrix-type display device including a plurality of field effect transistors arranged in a matrix, a plurality of gate lines, an apparatus for combining the gate lines in a set of combinations each containing two or more gate lines and for changing the set of combinations, and a driver for sequentially driving the combinations of gate lines so that the gate lines contained in a combination are driven simultaneously and all the gate lines are scanned in one vertical scanning period.

Abstract: A method of driving a liquid crystal display panel which is suitable to display a multivalue image such as a television image or the like, including the steps of inverting an image signal every time a horizontal sync signal is generated, applying the image signal to source lines of the display panel, and synchronously applying an inversion control signal to the common opposite electrode of the display panel, thereby remarkably reducing the driving voltage of the source lines. In this manner, a high-speed CMOS device of a low withstanding voltage can be used as an integrated circuit to drive the source lines.

Abstract: The specification and drawings relate to liquid crystal matrix display panel which is used to display a television image or the like and disclose the technology in which: the pixels on a matrix are divided into at least two groups of pixels, in particular, two right and left pixel groups; these pixel groups are respectively independently driven within one horizontal scanning interval; thereby widening the width of the vertical scanning signal and allowing the image signal to be sufficiently transferred to the liquid crystal cells; and thereby allowing a high-quality image to be displayed without causing a lack of luminance or a variation in luminance in association with the realization of a large area and a fine pitch of the display panel.

Abstract: In a method of driving a liquid crystal panel using one horizontal period (1H) as a reversal period, the liquid crystal panel using a TFT as a switching element for driving the panel in units of divided blocks and comprising the block division TFT's (B-TFT), a matrix circuit for driving each block in time division, and a TFT active matrix panel; each block of the B-TFT's is further divided into two half-blocks and a control signal shifted in phase between adjacent two half-blocks is applied to time-divisionally drive the liquid crystal panel at superposed timings. High intensity lines produced at the intersection of blocks due to the charge sharing effect are eliminated to thereby enable a high quality image to be produced.

Abstract: A liquid crystal display panel comprising: a liquid crystal display section; an array section of switching elements connected to first information signal lines of the liquid crystal display section, respectively; a driving circuit section which divides the switching element array section into a plurality of blocks and time-sharingly drives these blocks on a block unit basis; second information signal lines of wirings as many as the number of switching elements of one block among those blocks being connected to the driving circuit section; an information signal output circuit for applying an information signal to the second information signal lines; and an arithmetic operating circuit for correcting the information signal which is applied to the second information signal line in the previous block near the next block between the previous block which is previously driven and the next block which is driven next when the panel is time-sharingly driven for every block to an information signal to eliminate a high l

Abstract: An image forming apparatus comprises an exposure light source, an image bearing member and a printer head interposed therebetween. The printer head has a micro-shutter array which comprises a plurality of micro-shutters arranged in a matrix comprising a plurality of rows and a plurality of columns. Each micro-shutter comprises a first electrode connected to a terminal of a thin film transistor, a second electrode forming a common electrode and a liquid crystal interposed therebetween. On the first electrode is further provided an opposing conductor film through an insulating film, whereby a charge storage capacitor is formed. Because of the charge storage capacitor, an effective voltage applied across the liquid crystal is kept at a high level, whereby an optical signal with good contrast is given to the image bearing member even when the printer head is driven according to a high degree of time-division scheme.