摘要:
There is provided a display apparatus which uses a display panel using a liquid crystal having a bistability or a memory performance such as a ferroelectric liquid crystal and can display image data in various display modes in which the number of pixels (resolution), display color, minimum pixel unit, and the like respectively differ. The display apparatus comprises: a memory to store the image data; a pixel data output circuit to output the image data stored in the memory every pixel data; a converter to convert the pixel data which was output from the pixel data output circuit into binary data which is displayed on the display panel; a display data output circuit for converting the binary data converted by the converter into the display data corresponding to the display mode and outputting; and a display controller for allowing the image data which was output by the display data output circuit to be displayed on the display panel. A multiplexer is used as a pixel data output circuit. An RAM in which binary data has been stored is used as a converter.
摘要:
A data transfer method transfers data to an information-side driver for driving a display apparatus. Wherein, driver circuits each comprise chip address/video data discrimination circuit and a unit driver are mounted around the display apparatus. A unique chip address is set for each of the unit drivers by a hardware pattern. Data exchange with the driver circuits is performed so that chip address information and video data information are time-divisionally transferred to the target unit driver using a chip address/video data common bus line and a chip address/video data discrimination control signal.
摘要:
A data processing apparatus includes an image data storage memory for storing image data including periodically supplied image data having a first graphic event and image data having a second graphic event. The image data storage memory is controlled to store image data having the first graphic event preferentially while inhibiting the storage of image data having the second graphic event based on prescribed display priority levels allocating a higher display priority to the first graphic event than to the second graphic event. The inhibition of the storage of image data having the second graphic event is released when first graphic event data transferred periodically is transferred to stop and display a first graphic display position.
摘要:
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.
摘要:
A display apparatus, including a plurality of pixels arranged in a plurality of rows and a plurality of columns, each pixel including a pair of oppositely disposed electrodes and a liquid crystal disposed between the electrodes, a plurality of scanning lines each commonly connecting pixels arranged in a row, and a plurality of data lines each commonly connecting pixels arranged in a column, drive means for applying a scanning signal to the scanning lines and applying data signals to the data lines in synchronism with the scanning signal, a display data storage memory for storing display data supplied from a display data input device, a control for, when display data supplied from the display data input device is moving display data, controlling the display data storage memory to store the moving display data and supply address data for designating only scanning lines corresponding to the moving display data so as to control the electrode matrix to scan only the scanning lines on which the moving display data is written.
摘要:
A liquid crystal apparatus includes a liquid crystal device including scanning electrodes, data electrodes and a ferroelectric liquid crystal disposed between the scanning electrodes and the data electrodes. A scanning selection signal and a scanning nonselection signal are applied to the scanning electrodes. The data signals are applied to the data electrodes in phase with the scanning selection signal. The average voltage values of the data signals are varied during the period of applying a scanning selection signal.
摘要:
A display control unit is combined with a display device including X and Y side electrodes and a display element sandwiched between the X and Y side electrodes. The display control unit includes a plurality of lines for supplying voltages having different values to the X and Y side electrodes, a switch for connecting the lines with the electrodes or disconnecting the lines from the electrodes, and a unit for controlling the switch within a selection period of the X or Y side electrodes.
摘要:
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.
摘要:
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.
摘要:
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.