Abstract: A pixel electrode is connected to a signal line via an n-channel TFT element for writing image signals and the pixel electrode is connected to an auxiliary storage capacitance line via p-channel TFT element for resetting the pixel electrode, wherein gate electrodes of the n-channel and p-channel TFT elements provided in a pixel region are commonly connected to a corresponding scanning line of the pixel region or to the corresponding scanning line and an adjacent scanning line, respectively.

Abstract: A liquid crystal device comprises plural pixel electrodes arranged in a matrix form, a common electrodes facing the pixel electrodes, a liquid crystal layer sandwiched therebetween, and plural switches to drive the respective pixel electrodes. A reflectivity or transmittance of the liquid crystal varies according to a first state where a direction of a normal to each of the liquid crystal is the same, a second state where the above direction of the normal is at random, and a third state where a spiral structure of the liquid crystal is untied, and has a hysteresis characteristics with respect to an applied voltage including an insensitive voltage region where a reflectivity or transmission state is not determined by the applied voltage. The device has an operation such that the applied voltage is brought into the insensitive voltage region, after a display signal is written into the pixel electrode, to hold the display state.

Abstract: A liquid crystal display device is constituted so that liquid crystal having an inherent spontaneous polarization or a spontaneous polarization induced by applying an electric field is interposed between a pixel electrode disposed in matrix and a counter electrode, and a display signal is applied to the pixel electrode through a switching element. In the liquid crystal display device constituted mentioned above, when an electrostatic capacitance of one pixel is C.sub.LC (F), a spontaneous polarization per unit electrode area of the liquid crystal is P.sub.s (C/m.sup.2), a voltage applied between the pixel electrode and the counter electrode is E (V), a pixel electrode area of one pixel is A (m.sup.2), and a storage capacitance for one pixel is C.sub.s (F), they satisfy the following equation;P.sub.s .times.A.ltoreq.5.times.(C.sub.s +C.sub.LC).times.E(1)Thereby, a display of high contrast and high response speed can be obtained.

Abstract: Each pixel of a liquid crystal display device comprises a switching device for selecting a data signal, a memory portion for storing the data signal selected by the switching device and outputting an analog signal corresponding to the data signal, and a circuit for supplying an AC voltage corresponding to the analog signal to the liquid crystal layer. The liquid crystal layer is driven with a data signal stored in the memory portion or with an AC voltage corresponding to an analog signal corresponding to the data signal. With the signal stored in the memory portion, an AC voltage whose effective value or average value is controlled is supplied to the liquid crystal layer. Thus, unless a picture on the display is changed, since it is not necessary to supply the data signal, the peripheral driving circuit can be stopped. Consequently, although a picture is displayed in gradation mode, the power consumption can be remarkably reduced.

Abstract: A liquid crystal display device comprises a first substrate, plural pixel electrodes arranged in rows and columns on the first substrate, plural switching elements, an end of the conduction path of each of the switching elements being connected to a corresponding one of the pixel electrodes, a second substrate that is opposed to the first substrate, a common electrode formed on the second substrate and opposed to the pixel electrodes, a liquid crystal material with spontaneous polarization sandwiched between the first and second substrates, plural signal line bundles arranged on the first substrate substantially parallel with one another along the columns, each of the signal line bundles comprising a predetermined number of signal lines and each of the signal lines being connected to the other end of the conduction path of each of selected switching elements arranged along a corresponding one of the columns, plural scanning lines arranged on the first substrate substantially parallel with one another along th

Abstract: A display device includes a substrate, a plurality of pixels arranged in rows and columns on the substrate, and a plurality of signal lines for providing an image signal to the pixels on a column-by-column basis. Each of the pixels comprises a plurality of memory elements for storing image signals sent over a corresponding one of the signal lines, a selector for selecting one of the memory elements, and a display element for displaying a dot at a brightness corresponding to an image signal stored in the selected memory elements.

Abstract: It is an object of this invention to provide an active matrix type liquid crystal display which uses a ferroelectric liquid crystal or antiferroelectric liquid crystal, which has a high response speed, a wide angle of field, and a high contrast, and which does not cause a "step response" phenomenon.

Abstract: A liquid crystal display includes a liquid crystal display panel having a pixel matrix consisting of a plurality of pixels, a signal line driver, a row address line driving circuit, a row pixel counter circuit, a row address signal generating circuit, a column address line driving circuit, a column pixel counter circuit, and a column address signal generating circuit. Each pixel includes a liquid crystal unit, a storage capacitor, and a switching unit consisting of switching devices. The switching unit is turned on and off by a cooperation of a row address line and a column address line. While the switching unit is ON, an image signal is supplied from a signal line to a pixel electrode. This reduces write operations to pixels and thereby reduces the power consumption, and also improves the writing characteristic and the holding characteristic which differ from one pixel to another.

Abstract: A liquid crystal display apparatus comprises a plurality of signal lines and scanning lines which are arranged so as to extend in directions orthogonal to each other and cross each other at cross portions, a plurality of pixel electrodes respectively provided at the cross portions so as to form a matrix arrangement, and a plurality of thin film transistors respectively provided between the pixel electrodes and the signal lines and respectively having gates connected with the scanning lines, for functioning as switches for writing image signals which are supplied from the signal lines into the pixel electrodes, picture change detecting means for detecting a change between still and moving pictures in a direction of time-axis included in a display image, and gate signal change means for changing the number of interlaced scanning lines in accordance with a change component detected in the picture change detecting means.

Abstract: A plurality of pixels are arrayed in a matrix format on the liquid crystal panel of a liquid crystal display. GH liquid crystal layers and transparent electrodes for displaying a plurality of different colors are alternately stacked on a reflecting plate, and therefore each pixel has three liquid crystal layers. Pieces of potential information supplied to the respective liquid crystal layers are controlled by switching elements connected to signal lines and scanning lines. The signal lines and the scanning lines are respectively connected to driving ICs, which are connected to a signal processing circuit. In each pixel, while the potential information of one liquid crystal layer is controlled, the remaining liquid crystal layers are set in a floating state.

Abstract: A display device comprises a plurality of address lines arranged in a horizontal direction, a plurality of signal lines, arranged in a vertical direction, for transmitting an image signal, a plurality of pixels, arranged in a matrix at intersections between the plurality of address lines and the plurality of signal lines, each pixel including a display element, and a switch element which is connected between a corresponding one of the plurality of signal lines and the display element and which is controlled to be on or off under control of a corresponding one of the plurality of address lines, and compensating means for supplying, through the corresponding one of the plurality of address lines to the display element, a compensation signal for compensating a change in potential applied to the display element.

Abstract: A liquid crystal display device having pixel selection switching elements in a one-to-one correspondence with pixels includes an interlace processing circuit for performing n (n is an odd number of 3 or larger): m (m is an arbitrary number equal to or smaller than n) interlace processing for a one-frame image signal, an n-fold rate converting device for performing n-fold rate conversion for the interlaced image signal, an image display for displaying an image by driving the pixel selection switching elements in accordance with the image signal subjected to the n-fold rate conversion, and a non-picture period processing means for disconnecting the n-fold rate converting device from the image display and performing desired processing for the image display during a non-picture period longer than a vertical blanking period.

Abstract: A display device is composed of a liquid crystal display panel, having modulating characteristics in which a relationship between a transmittance and a drive voltage depends on the direction of a change in the drive voltage, for modulating source light in a two-dimensional area, and a processing channel for applying a drive voltage according to each of pixel signals which change for each 1-field period. Particularly, the processing channel includes a field memory for delaying transmittance data corresponding to the pixel signal by the 1-field period, and a characteristic compensating circuit for converting the transmittance data to a drive voltage data on the basis of conversion characteristics which vary with the data delayed by the field memory, and determining the drive voltage according to the drive voltage data.

Abstract: A liquid crystal display has a plurality of display pixels arranged in a matrix and a plurality of signal and scan lines orthogonally crossing one another and connected to the display pixels. Each of the display pixels includes a liquid crystal dot, a switching element and a color filter to which at least one of color signals R, G and B is supplied. A method of driving the liquid crystal display comprises the step of inverting polarities of the signal lines for every scan in line-sequentially scanning the display pixels, and shifting the phase of polarity inversion of each of the signal lines to which the color signals R, G and B are supplied.

Abstract: A clamp operating member which is bendable cooperates with a spindle to support a clamping member which cooperates to clamp a disc-shaped recording medium and to position the clamping member in a clamped position and an unclamped position. The arrangement has a restraining member engaging with the clamp operating member to bend the clamp operating member when the clamp operating member is in a position to position the clamping member in an unclamped position. The clamp operating member is bent by the restraining member when in the unclamped condition to reduce an operating space occupied by the clamp operating member.

Abstract: In a magnetic erasing head having a first gap and a second gap formed respectively between ferrite cores, one or more magnetic material layers (Fe-layers) are arranged in the gaps respectively, and the magnetic material layers have the magnetic flux density (B.sub.10) of more than 5000 gauss, the permeability of more than 5000 and the thickness of 5.mu. to 30.mu..