摘要:
A plasma display panel (PDP) includes a first plurality of electrodes, a second plurality of electrodes paired with the first plurality of respective electrodes, and a third plurality of electrodes (Y, X, A). The PDP further includes a plurality of cells at crossing portions between the first and second pluralities of electrodes and the third plurality of electrodes. In the PDP, a method comprises driving a PDP for displaying a picture on the PDP by dividing a field into a plurality of subfields (SF1, SF2, ...SF8), and resetting for adjusting charges in the cells in the subfields. The resetting for adjusting charges comprises applying voltage waveforms to the electrodes so that the potential difference applied between the second plurality of electrodes and at least one of the first plurality of electrodes and the third plurality of electrodes for the resetting for adjusting charges in a predetermined one of the subfields is larger than the potential difference applied therebetween for the resetting for adjusting charges in a previous subfield.
摘要:
A method and device for driving a plasma display panel is provided in which a drop of an increasing voltage rate due to discharge is prevented, and a reset period is shortened. In driving a plasma display panel by applying an increasing voltage to cells of a display screen during a reset period for equalizing charge of the cells, an increasing voltage signal is supplied to an impedance conversion circuit (712) in which an output impedance is lower than an input impedance, and the output signal of the impedance conversion circuit (712) is supplied to the cells.
摘要:
The invention relates to a method for driving a plasma display panel having first and second electrodes and address electrodes, wherein one frame includes a plurality of subfields, and at least one subfield includes a reset period, an address period, and a sustain discharge period. The method comprises the step of consecutively applying within the reset period a plurality of reset pulses to any one of the first, second and address electrodes and the applied voltage of the reset pulse varying with time.
摘要:
A method for driving a gas electric discharge device having a plurality of cells defining a display screen, each cell having at least three electrodes that form electrode gaps for a gas electric discharge therebetween, the device operable to produce wall voltages at the electrode gaps, the method comprising: applying voltages monotonously rising from first set values to second set values, to respective ones of two or more of the electrode gaps in one cell, thereby to generate a plurality of feeble gas electric discharges successively occurring from voltages between the first set values and the second set values to voltages of the second set values so as to adjust the wall voltages at the two or more electrode gaps in the one cell.
摘要:
A driver for a plasma display panel having a plurality of scan electrodes which are independent of each other, comprising: a plurality of driver circuits provided between a first power supply line (FLG) and a second power supply line (FVH), and connected to the scan electrodes, respectively; a first power supply circuit (71) including a first voltage generator (73) and a second voltage generator (72), wherein the first voltage generator (73) supplies OFF voltage to the first power supply line (FLG) and the second voltage generator (72) supplies ON voltage (Vsc) to the second power supply line (FVH), for writing display data; and a second power supply circuit (90) charging the first and the second power supply lines (FLG,FVH) to a defined value (Vs) for causing discharges based on the display data. To reduce the required withstand voltage of the scan electrodes, each of the scan electrodes is grounded for a short period via the first voltage generator prior to applying the defined value (Vs) of voltage during a sustain discharge period.
摘要:
A method of driving a gas discharge panel comprising: in an addressing preparation period (TR) of a driving period of the panel, applying an addressing preparation pulse (Prx2, Pry2) to at least the scanning electrode of each pair of main electrodes so that a potential difference between the main electrodes of each pair increases with time from a first set value to a second set value; in an addressing period (TA) of said driving period, which follows said addressing preparation period, selecting the scanning electrodes one after another in a scanning sequence and applying a scanning pulse (Py) to the selected scanning electrode and address pulses (Pa) to the address electrodes so as to set each of the cells of the row corresponding to the selected scanning electrode selectively into either a to-be-lit state or a not-to-be-lit state in accordance with state setting data corresponding to the row concerned; in a sustain period (TS) of said driving period, which follows said addressing period, generating discharges in cells that have been set into said to-be-lit state in said addressing period; characterised in that said driving period (Tsf) includes first and second such addressing periods (TA1, TA2), a first plurality of the scanning electrodes (Yodd) being selected one after another in said first addressing period, and a second plurality of the scanning electrodes (Yeven) being selected one after another in said second addressing period.
摘要:
A plasma display panel of a surface discharge type is disclosed, which can positively generate the discharge for display while suppressing the power consumption even when the number of the electrodes is increased for attaining the high definition. A plurality of display electrode pairs (x,y) are arranged in proximity with each other inside of a pair of substrates opposed to each other with a discharge gap formed therebetween. Each display electrode (x;y) includes a main pattern (3) extending in one direction, independent discharge patterns (2b) each formed for each luminous area corresponding to a display cell, and a plurality of auxiliary patterns (4) for electrically connecting the main pattern (3) and the discharge patterns (2b) to each other. The auxiliary patterns (4) are higher in conductivity than the discharge patterns (2b) in one embodiment, and are integral with the discharge patterns (2b) in another embodiment.
摘要:
A method of displaying a dynamic halftone image on a display panel comprising pixels by dividing each frame of the image into subframes and by turning on and off the subframes, comprises the steps of: finding a line of n pixels that simultaneously display a specific intensity level in a frame and another specific intensity level in the next frame; calculating the sum ΔS of stimulus on a retina to be produced with a weighted corrective pulse, which will be applied to one of the n pixels, as follows: B 1 T ≦ B 2 T + ΔS ≦ B 3 T, or B 1 T ≧ B 2 T + ΔS ≧ B 3 T where T is a period in which the intensity level of the n pixels changes from one to another, B 1 is an average of stimulus on a retina due to one of the n pixels before the change, B 2 is an average of stimulus on the retina due to the same during the change, and B 3 is an average of stimulus on the retina due to the same after the change; comparing the intensity levels with each other; selecting the weighted corrective pulses, which turn on/off corresponding subframes thereby to enable/disable corresponding intensity levels, respectively, according to the n pixels and a change in the intensity levels between the frames, so that the total sum of stimulus on the retina to be produced with the corrective pulses is substantially equal to nΔS; and adjusting original display signals for the n pixels according to the weighted corrective pulses, respectively.