Abstract: Disclosed is a method of driving a plasma display panel. In this method, one field corresponding to one image is divided into a plurality of sub-fields, and at least one second sub-field is arranged after a first sub-field. In the first sub-field, the method comprises a first step of forming wall charges with negative polarity near the scanning electrode and forming wall charges with positive polarity near the common electrode and the data electrode; a second step of adjusting an amount of the wall charges with negative polarity near the scanning electrode and an amount of the wall charges with positive polarity near the common electrode and the data electrode; a third step of generating a writing discharge in a selected display cell of the display cells; a fourth step of generating light emission for display; and a fifth step of erasing a part of the wall charges in the display cell which emits light in the fourth step.

Abstract: The driving apparatus for a plasma display panel is formed by a first priming pulse generation circuit for generating a first priming pulse having a first crest value; a second priming pulse generation circuit for generating a second priming pulse having a second crest value; and a drive control means for selectively controlling the first priming pulse generation circuit so as to output the first priming pulse and second priming pulse generation circuit so as to output the second priming pulse in accordance with a detection result obtained from the intensity detection means.

Abstract: When a discharge start voltage takes a normal value under the normal temperature, priming discharge starts at a time t1. In this case, at a time t3 that is later than the time t1 by a predetermined time t, a sustain driver control signal Ssud2 is raised to put a sustain electrode into the floating state to stop the priming discharge. When the discharge start voltage takes a higher value than usual under the high temperature, the priming discharge starts at a time t2. In this case, at a time t4 that is later than the time t2 by the predetermined time t, the sustain driver control signal Ssud2 is lowered to put the sustain electrode into the floating state to stop the priming discharge. With such a configuration, provided is a plasma display device capable of implementing excellent and stable display quality while maintaining constant, even if a discharge start voltage varies, the charge state in display cells after a priming period, and a drive method for such a plasma display device.

Abstract: There is provided a method of driving a plasma display panel displaying images in fields each comprised of at least one first-type sub-field having a priming period and at least one second-type sub-field having no priming period, wherein data-writing discharge in the second-type sub-field is generated only when data-writing discharge in the first-type sub-field arranged immediately before the second sub-filed is generated.

Abstract: A method of driving a plasma display panel including (A) a first substrate including a first electrode, and a second electrode extending in parallel with the first electrode and defining a display area with the first electrode therebetween, and (B) a second substrate including a third electrode facing the first and second electrodes and extending perpendicularly to the first and second electrodes, includes (a) applying a serrate voltage having an inclined waveform in which a voltage varies with the lapse of time, to the first and/or second electrodes, and (b) applying a preliminary charge-eliminating pulse voltage to the first and/or second electrodes after the a charge-eliminating discharge has been generated due to the serrate voltage, wherein the preliminary charge-eliminating pulse voltage eliminates electric charges only when electric charges have not been sufficiently eliminated.

Abstract: An AC type plasma display is provided with first and second substrates disposed oppositely. Scan electrodes and sustainment electrodes are provided alternately at an opposite face side to the second substrate in the first substrate, the scanning and sustainment electrodes extending in a row direction. Data electrodes are provided at an opposite face side to the first substrate in the second substrate, the data electrodes extending in a column direction. Auxiliary electrodes are provided at all of spaces between the scan electrodes and the sustainment electrodes. The auxiliary electrodes extend in a row direction.

Abstract: By inserting a pre-discharge erasing voltage holding time of more than 5 microseconds after a potential change of a pre-discharge erasing pulse, and by inserting a pre-sustaining erasing period between the scanning period and the sustaining period, the residual wall charge is made constant regardless of the discharge characteristics of each cell and it becomes possible to reduce the erroneous discharge without eliminating the effective voltage distribution due to superposing the residual wall charge and the scanning voltage. By increasing the scanning pulse voltage due to the finally attained voltage of the pre-discharge erasing pulse and by superposing the wall charge corresponding to the potential difference of the finally attained voltage of the pre-discharge erasing pulse and the scanning pulse voltage, on the scanning pulse voltage, it is possible to reduce the data voltage and the scanning voltage.

Abstract: In a circuit for driving a plasma display panel including a first circuit formed on a scanning substrate for driving a scanning electrode, and a second circuit formed on a common substrate for driving a common electrode, the circuit in accordance with the present invention is characterized by including a single substrate in place of the scanning and common substrates wherein the first and second circuits are formed on the single substrate.

Abstract: A method and circuit for driving a plasma display panel are provided which are capable of preventing a useless display, irrespective of characteristics of a driving power source. In the method for driving the disclosed plasma display panel, a pulse having an erasing pulse which causes a maximum potential difference between sustaining electrodes being adjacent to each other to reach at least sustaining voltage is applied, immediately after power is applied, to a scanning electrode.

Abstract: In a method of driving a plasma display panel (PDP) to display an image at every field that is divisible into from first to last sub-fields, priming discharges are caused to occur only within a scanning period of the first sub-field by supplying scan priming pulses and priming data pulses to scanning and data electrodes, respectively. The scanning and the data electrodes driven in the scanning period are made to correspond to cells to be displayed in the following sub-fields. The scan priming pulses may have a width wider that that used in the remaining sub-fields or may partially overlap with one another.

Abstract: When an average peak level is high, and there is a difference in weight between a subfield SF1 on the lowest level and a subfield SF2 on the second lowest level while their sustain cycle numbers are equal, all scan electrodes are scanned for the subfield SF1 on the lowest level. Simultaneously, data pulses according to video signals are impressed on data electrodes only when an odd number scan electrode is scanned in an odd number field (an nth frame), and the data pulses according to the video signals are impressed on the data electrodes only when an even scan number electrode is scanned in an even number field (an (n+1)th frame).

Abstract: The driving apparatus for a plasma display panel is formed by a first priming pulse generation circuit for generating a first priming pulse having a first crest value; a second priming pulse generation circuit for generating a second priming pulse having a second crest value; and a drive control means for selectively controlling the first priming pulse generation circuit so as to output the first priming pulse and second priming pulse generation circuit so as to output the second priming pulse in accordance with a detection result obtained from the intensity detection means.

Abstract: A plasma display is provided with a plasma display panel, data drivers which apply data pulse to data electrodes of the plasma display panel, a control circuit which t controls an operation of the data drivers based on a video signal, and a protection signal output circuit. The protection signal output circuit outputs a protection signal to the control circuit when sum of currents supplied from the data drivers to the data electrodes within a time equal to one sub-field or more to less than one frame exceeds a previously set first specified current value. The protection signal restrains the operation of the data drivers.

Abstract: A plasma display unit applies data pulses of a predetermined polarity to data electrodes in odd-numbered columns and applies data pulses of an opposite polarity to data electrodes in even-numbered columns. The plasma display unit applies scanning pulses which are inverted between positive and negative polarities in first and second states that occur alternately, to scanning electrodes in odd-numbered rows, and applies scanning pulses which are inverted between positive and negative polarities in the first and second states in opposite relation to the scanning pulses applied to the scanning electrodes in odd-numbered rows, to scanning electrodes in even-numbered rows. Pixels arranged vertically and horizontally in a two-dimensional matrix are alternately energized in a staggered grid pattern, so that the number of pixels that are simultaneously energized is half the number of pixels of a conventional plasma display unit.

Abstract: By inserting a pre-discharge erasing voltage holding time of more than 5 microseconds after a potential change of a pre-discharge erasing pulse, and by inserting a pre-sustaining erasing period between the scanning period and the sustaining period, the residual wall charge is made constant regardless of the discharge characteristics of each cell and it becomes possible to reduce the erroneous discharge without eliminating the effective voltage distribution due to superposing the residual wall charge and the scanning voltage. By increasing the scanning pulse voltage due to the finally attained voltage of the pre-discharge erasing pulse and by superposing the wall charge corresponding to the potential difference of the finally attained voltage of the pre-discharge erasing pulse and the scanning pulse voltage, on the scanning pulse voltage, it is possible to reduce the data voltage and the scanning voltage.

Abstract: An AC type plasma display is provided with first and second substrates disposed oppositely. Scan electrodes and sustainment electrodes are provided alternately at an opposite face side to the second substrate in the first substrate, the scanning and sustainment electrodes extending in a row direction. Data electrodes are provided at an opposite face side to the first substrate in the second substrate, the data electrodes extending in a column direction. Auxiliary electrodes are provided at all of spaces between the scan electrodes and the sustainment electrodes. The auxiliary electrodes extend in a column direction.

Abstract: The present invention provides a method of driving an AC plasma display comprising the steps of: at least any one of applying a first type priming pulse with a positive polarity having a gentle rise to a scanning electrode and applying a second type priming pulse with a negative polarity having a gentle fall to a sustaining electrode; at least any one of applying the sustaining electrode with a first charge adjustment pulse with a positive polarity having a gentle rise as an erasing pulse for reducing wall charges formed on the sustaining electrode by priming, and applying the scanning electrode with a second charge adjustment pulse with a negative polarity having a gentle fall as an erasing pulse for reducing wall charges formed on the scanning electrode by priming; applying a scanning pulse with a negative polarity onto the scanning electrode and a data pulse with a positive polarity onto a data electrode so as to erase the wall charges of a selected cell; at least any one of applying a first erasing pulse

Abstract: A chip-in-glass fluorescent indicator panel includes a glass substrate, a wiring layer, an insulating layer, a pattern-like graphite layer, a phosphor layer, a filament, a grid, an IC, an IC shield, a filament fixing portion, and an anchor. The wiring layer is formed on the glass substrate. The insulating layer covers the wiring layer. The pattern-like graphite layer is formed on the insulating layer to be electrically connected to the wiring layer. The phosphor layer is formed on the pattern-like graphite layer. The filament is suspended above phosphor layer with an interval. The grid is arranged between the filament and the phosphor layer. The IC is fixed on the insulating layer on one end side of the glass substrate to be connected to the pattern-like graphite layer through the wiring layer. The IC shield is arranged between the IC and the filament. The filament fixing portion is formed on the IC shield.

Abstract: Disclosed is a liquid transferring unit having a tank carrying a liquid such as, for example, a glue or an ink, an applicator roll with a part thereof being immersed within the liquid disposed within in the tank, a doctor roll which scrapes off or removes the surplus liquid taken up by means of the applicator roll, and a pair of dam plates which are disposed within the tank so as to be movable toward and away from each other along a direction parallel to the axis of the applicator roll; characterized in that the pair of dam plates have regulating sections, respectively, which can be abutted against the opposing circumferential portions of the two rolls, so that the triangular space defined between the two rolls may be closed by means of such regulating sections.