Abstract: A liquid crystal panel and a liquid crystal display device including the panel which has a transparent first substrate, a second substrate arranged so as to oppose the first substrate with a space therebetween and liquid crystals filled in the space between the first substrate and the second substrate and having a twist angle which changes in a plane in parallel with a direction of an electric field. The panel has pixels including pixel electrodes connected to source electrodes and counter electrodes with the pixels being arranged in M rows and N columns, where M and N are integers of at least two. Both of the pixel electrodes and the counter electrodes are provided at the second substrate. The panel also includes drain lines independently provided for respective columns, gate lines independently provided for respective rows, and counter lines connected to the counter electrodes.

Abstract: A scanning voltage driving device suitable for a liquid crystal panel with plural output terminals, the scanning voltage driving device producing a 2-level selection voltage to plural scanning electrode groups which drive the liquid crystal panel according to a value of an orthogonal function data, the 2-level selection voltage having a positive polarity and a negative polarity with respect to a center point being a non-selection voltage, includes orthogonal function producing means for producing the orthogonal function data from input synchronous display signal groups, scanning line selecting means for creating a scanning line selection signal from the synchronous display signal groups to indicate an output terminal for the selection voltage, and voltage selecting means for selectively outputting a voltage amount the 2 levels of the selection voltages and the non-selection voltage every output terminal according to the value of the scanning line selection signal and the value of the orthogonal function data,

Abstract: A liquid-crystal display device of a simple matrix type is permitted to present a liquid-crystal display of good display quality free from nonuniformity in display brightness. A method of driving a liquid-crystal display device wherein voltages which correspond to potential differences between scanning voltages from a Y drive circuit and display voltages from an X drive circuit are applied to liquid-crystal cells at intersection points between scanning electrodes (Y electrodes) and data electrodes (X electrodes), thereby presenting a display conforming to display data comprises the steps of providing a correction time period for correcting the display voltage to be output from the X drive circuit at least once every scanning period of one line, and outputting a correction voltage at a voltage level which is intermediate between a voltage level in an ON-display state and a voltage level in an OFF-display state instead of the display voltage from the X drive circuit within the correction time period.

Abstract: A data electrode driving circuit, a scanning electrode driving circuit, a liquid crystal display unit and a driving method thereof for attaining simultaneous scanning and driving of a plurality of rows in a passive matrix type liquid crystal display unit. A scanning electrode driving circuit includes a scanning function generating circuit for generating scanning functions for m rows. A scanning voltage is selected by the scanning function and a driving voltage is supplied to the scanning electrode. On the other hand, a data electrode driving circuit includes shift registers for m rows. The shift registers produce display data for m rows taken therein at the same time. The display data for m rows and the scanning function produced by the scanning electrode driving circuits are subjected to comparison operation. One level of m+1 level voltages is selected in accordance with the operation result and is supplied to the data electrode.

Abstract: A liquid crystal driver includes a voltage generator for generating gray scale voltages on the basis of reference voltages, and an output device for selecting one gray scale voltage from the generated gray scale voltages in accordance with display data, for applying inversion/non-inversion control to the selected gray scale voltage with respect to an inversion reference voltage on the basis of the selected gray scale voltage, an AC switching signal and the inversion reference voltage, and for outputting different liquid crystal supply voltages for one and the same display data to a liquid crystal panel.

Abstract: A liquid crystal display device includes N (N is a positive integer except zero) data electrodes, M (M is a positive integer except zero) scan electrodes, a liquid crystal display panel having pixels located at crosspoints between said data electrodes and said scan electrodes, and a data electrode driving circuit. The data electrode circuit has a memory unit from or into which the information information is read or written, a write control circuit for controlling a write of the display information into a memory area of the memory unit, a read control circuit for simultaneously reading the display information corresponding to N data electrodes from the memory area at a different period of the writing period, and an output circuit for converting the display information read from the memory unit into the corresponding voltage and feeding the display voltage to the data electrode.

Abstract: A method for driving a liquid crystal (LCD) display apparatus. The LCD display apparatus includes a liquid crystal panel arranged by a plurality of pixel units formed in a matrix shape, and a signal drive circuit for generating a liquid crystal apply voltage and constructed of at least two integrated circuits. A DC common electrode voltage is applied to one electrode of liquid crystal of the pixel units within the liquid crystal panel, and an AC voltage is applied to the liquid crystal to be driven.

Abstract: A display device integrated with an input device comprises a display panel having picture elements being scanned line-at-a-time,a detector for detecting a voltage pulse applied on one of the picture elements through electrostatic coupling,a first circuit for applying a voltage pulse of a type differing with a plurality of regions into which the display panel are divided, on electrodes associated with the picture element in one of the plurality of regions during the non-display period,a second circuit for determining a region of the picture element by the type of the voltage pulse detected by the detector,a fourth circuit for determining a relative X coordinate in the determined region by counting clock pulses synchronized with sequential application of a voltage on electrodes until the fourth circuit receives the voltage pulse detected by the detector during the non-display period, anda fifth circuit for determining an absolute X-coordinate by the determined region and the relative X-coordinate.

Abstract: A liquid crystal display device providing a multi tone control function is disclosed, permitting a multi-colored display to be provided by using an analogue display data input, while regulating stepwise the brightness by varying the level of the applied voltage. The liquid crystal display device is composed of serial/parallel converter having a high sampling speed, into which liquid crystal display data are inputted, with a function of converting serial image data into parallel image data, and an X axis direction driver having a low sampling speed, into which the liquid crystal display data for one pixel are inputted, with a function of outputting the liquid crystal display data of one line in the horizontal direction, synchronized with a display line signal for a Y axis direction driver. The S/P converter and the X axis direction driver are disposed separately.

Abstract: A liquid crystal display system capable of making a display of 2.sup.i+j (i, j: positive integers) kinds of tones display includes a frame rate control device for selecting one out of frame rate control data of 2.sup.j kinds in accordance with j-bit display data included in (i+j)-bit display data, i and j being positive integers, a multi-level tone pulse generator for generating display pulses of 2.sup.i +1 kinds including at least activation for display, inactivation for display, and intermediate display corresponding to an intermediate level, and a selection drive device for selecting a display pulse of one kind out of display pulses of 2.sup.i +1 kinds in accordance with the frame rate control data supplied from the frame rate control device and i-bit display data and applying the selected display pulse to a liquid crystal panel, the i-bit being different from the j-bit.

Abstract: A liquid crystal display device providing a multi tone control function is disclosed, permitting a multi-colored display to be provided by using an analogue display data input, while regulating stepwise the brightness by varying the level of the applied voltage. The liquid crystal display device is composed of serial/parallel converter having a high sampling speed, into which liquid crystal display data are inputted, with function of converting serial image data into parallel image data, and an X axis direction driver having a low sampling speed, into which the liquid crystal display data for one pixel are inputted, with a function of outputting the liquid crystal display data of one line in the horizontal direction, synchronized with a display line signal for a Y axis direction driver. The S/P converter and the X axis direction driver are disposed separately.

Abstract: This specification discloses a novel multi-tone display matrix display device.

Abstract: An improved multi-color liquid crystal display system which is capable of making visual color representation of more than eight colors in a display panel, such as a liquid crystal display panel which is composed of liquid crystal cells having three primary color filters attached thereto. Lightness of a cell is controlled by causing the cell to be in "ON" state during M frames out of N frames (N>M) to thereby provide half-tone color representation of the cell. This enables increase of the number of colors represented with the three primary color cells more than eight by combining "ON", "OFF" and the "half-tone" states of the three primary color cells.

Abstract: According to one embodiment of the present invention, a magnetic bubble memory module comprising a flexible printed circuits substrate (FPC3), on which a magnetic bubble memory chip (CHI) is mounted and electrically connected, with interconnecting patterns (9a) electrically connecting the chip (CHI) with external connecting leads, terminals or pins as well as bias coil winding (BIC2) for applying bias field to the chip (CHI), thereby reducing the number of components as well as fabricating steps because of the formation of the bias coil (BIC2) with the printed circuits substrate (FPC3).

Abstract: According to one embodiment of the present invention, a magnetic bubble memory module comprising a flexible printed circuits substrate (FPC3), on which a magnetic bubble memory chip (CHI) is mounted and electrically connected, with interconnecting patterns(9a) electrically connecting the chip (CHI) with external connecting leads, terminals or pins as well as bias coil winding (BIC2) for applying bias field to the chip (CHI), thereby reducing the number of components as well as fabricating steps because of the formation of the bias coil (BIC2) with the printed circuits substrate (FPC3).

Abstract: A magnetic bubble memory chip is disposed at a position surrounded by a rectangular annular core having two pairs of opposite sides wound by a pair of wires, respectively, and is covered by a case for confining revolving magnetic field, thereby providing a revolving magnetic field to said chip. A bubble memory includes a permament magnet used as a holding magnetic field source, lying at a predetermined angle to the chip. An inclination between the chip and the magnet is provided on the revolving-magnetic-field confining case to be inserted between the chip and the magnet by having the case changed in plate thickness.

Abstract: A magnetic bubble memory module having a rectangular core shaped like a picture frame providing windings on respective two pairs of opposite sides, at least one magnetic bubble memory chip disposed in an area surrounded by the core, a flexible substrate having a chip-loading section for loading the magnetic bubble memory chip thereon and having four corners for leading out lead wires connecting signal lines and driving lines of the chip. A revolving magnetic field-confining case accommodates the core, the chip and the flexible substrate and enables the lead wires of the flexible substrate at the corners of the chip-loading section to be drawn out therethrough.

Abstract: A plurality of strands each comprising a conductor covered with an insulating layer and then with an adhesive layer are twisted together and fixed to each other by fusing of the adjacent adhesive layers to form a litz wire which will not be deformed even by an external force.

Abstract: In a cassette type magnetic bubble memory device comprising: a magnetic bubble memory device mounted to a base plate and having a magnetic bubble memory element, a pair of coils for generation of a rotating field for driving the element, and a pair of permanent magnet plates and yoke plates for applying a bias field to the element; and an electric signal connector section provided on one end of the base plate and adapted to be connected to a loader, an electrically conductive metal frame is provided which surrounds at least the connector section, and a resin sealing medium is provided which seals at least the magnetic bubble memory device continuously to the inner walls of said frame.

Abstract: A micro-pattern element has a heat discharge pattern formed on a fine line portion of a conductor pattern. Breakage caused by temperature elevation of the conductor pattern in response to the application of an electric current and resulting electromigration can be effectively prevented by the heat-discharge pattern formed on the fine line portion of the conductor pattern; thus, the reliability of the micro-pattern element can be remarkably improved.