Abstract: A method of driving an AC type PDP according to the present invention includes a full screen write step of applying a write voltage higher than a discharge starting voltage to respective cells constituting a screen of the PDP to cause a discharge in the respective cells for accumulation of wall charges therein, the method comprising a write preparation step of applying to the respective cells an auxiliary write voltage lower than the discharge starting voltage and having the same polarity as that of the write voltage to cause a discharge in a charged cell having wall charges accumulated before the application of the auxiliary write voltage for inversion of the polarity of a wall voltage in the charged cell, the write preparation step being performed prior to the full screen write step, wherein the application of the write voltage in the full screen write step is performed within a period during which space charges resulting from the discharge caused in response to the application of the auxiliary write voltag

Abstract: A method for driving a plasma display panel includes carrying out an erase address operation when a display on the screen is renewed. The erase address operation includes the steps of carrying out an address preparation operation for producing the wall charge in all the discharge cells through a first step of generating a discharge only in a discharge cell in an ON-state and a second step of generating a discharge only in a discharge cell in an OFF-state, and carrying out an operation for selectively erasing the wall charge in a discharge cell other than a discharge cell corresponding to data of the image to be displayed.

Abstract: A flat display comprising an address current detecting means 3 for detecting a value of address current consumed for each frame to be displayed on the flat display, a comparator 4 for comparing the address current value detected by the address current detecting means 3 with a given reference value, and an address frequency control means 5 for controlling address frequencies related to a display frame in response to the output of the comparator 4.

Abstract: In driving an AC type PDP of a matrix formation formed of lines and rows, the PDP includes: plural first and second sustain electrodes arranged on a first substrate, each extending along the line direction, the first & second sustain electrodes being in parallel and adjacent to each other; plural address electrodes arranged on a second substrate opposing the first substrate via a discharge space, each extending along the row direction; and a dielectric layer for covering the first and second sustain electrodes, wherein the method comprises: in causing a writing discharge between the first & second sustain electrodes, the step of: causing supplementally a discharge between the address electrode and the second sustain electrode, wherein the address electrode is positive with respect to the second sustain electrode; and concurrently causing said writing discharge between the first and second electrodes, wherein the first sustain electrode is positive with respect to the second sustain electrode.

Abstract: A base station and a base station controller are used for providing data communication channels using random access (RACHs) for mobile stations. The base station or the base station controller provides for notifying channel information on an RACH. Each mobile station provide for determining whether or not a packet can be sent and for shifting from one RACH to another based on the channel information. The base station and the base station controller further provide for transferring a packet to a mobile station over the RACH. The base station controller provides for terminal identifier management and packet division and reconstruction for transferring a packet between mobile stations or between a mobile station and the LAN.

Abstract: A triple-electrode planar display capable of achieving further power saving has been disclosed. A drive unit is dedicated to a planar display having a display panel in which cells being arranged in the form of a matrix and having a memory function and discharge glow function are formed, in which one of each pair of electrodes on the same substrate which are responsible for discharge glow is a common electrode connected in common. The drive unit includes a common electrode drive circuit for applying an alternating voltage to the common electrode, and a power save circuit that when the common electrode is changed from a high potential to a low potential, restores and accumulates power applied to the common electrode, and that when the common electrode is changed from the high potential to the low potential, applies accumulated power to the common electrode.

Abstract: A flat panel display has a low withstand voltage and performs high speed line sequential scanning and recovers power. An AC type panel display has electrodes arranged in a matrix form, a push-pull type driver circuit, having first and second transistors, provided for each pair of plural pairs, of power supply lines connected to a driver circuit for driving a plurality of display electrodes to be scanned and a power supply which supplies a defined voltage to one of the respective power supply lines of each pair connected to the corresponding driver circuit, and a leakage control switch which leaks the defined voltage applied to the power supply line.

Abstract: In a flat display, an address current detecting unit detects a value of address current consumed during each display frame, a comparator compares the address current value detected by the address current detecting unit with a given reference value, and an address-frequency control unit controls address frequencies related to the display frame in response to the output of the comparator.

Abstract: In a liquid crystal projection color display apparatus having three liquid crystal display devices used for red, green and blue light, each liquid crystal display device has a liquid crystal display panel and a microlens array disposed on the light-source side or the light-source and screen sides of the liquid crystal display panel. The microlens array has a controllable refractive power which is controlled by applying an electrtical power thereto. An electrical voltage is applied between transparent electrodes formed on both surfaces of a microlens array so that the refractive power of the microlens array can be made a value adapted to suit the corresponding one of red, green and blue light.

Abstract: In a liquid crystal projection display apparatus, light is emitted from a light source and is separated and directed to pixels of a liquid crystal display element and condensed at the center of each pixel with a first microlens array. The light which has passed through the liquid crystal display element is converted into approximately parallel rays with a second microlens array. The light which has passed through the second microlens array is projected onto a screen via a projection lens.

Abstract: In a gas discharge display panel, first and second driving electrodes are capacitively coupled to each display electrode on at least one of two substrates. The first and second driving electrodes of the display electrodes are formed by a first group of driving electrodes and a second group of driving electrodes by connecting the first and second driving electrodes as a plurality of groups. Specified display electrodes are controlled by selecting the first and second electrodes at the same time. The method for driving the gas discharge display panel includes the steps of discharging all dots in one selected line of the discharge electrodes which are to be written, and of erasing selected dots which are not to be written.

Abstract: A combination of a shoe and a foot bed in which a predetermined foot girth is obtained by inserting a foot bed having a three dimensional shape adaptable to the shape of a bottom of a foot, for which the degree of fitness has been confirmed by placing a foot thereon, into a shoe having a foot length of a standard size and a foot girth larger than a standard size.

Abstract: A method of driving a gas discharge display panel having first and second arrays of parallel conductors disposed in spaced relationship on opposite sides of a gas filled panel and oriented at transverse angles to each other, the electrodes of each array being insulated from direct contact with the gas by a corresponding layer of dielectric material. Coordinate intersections of the electrodes of the two arrays define corresponding individual discharge sites.

Abstract: A multiplex wiring circuit for a gas discharge panel which reduces the number of driver circuits normally used, by a unique capacitive coupling to the display electrodes through a multiplex circuit arranged on the peripheral portions of the display substrates.