摘要:
A method for driving an AC type surface-discharge display device which has cells arranged in a matrix. Each of the cells has at least three electrodes including a pair of main electrodes on every line of the matrix and an address electrode on every column of the matrix. The method includes providing an address preparation period applying a charge producing pulse and applying a charge adjusting pulse. The charge adjusting pulse has a waveform monotonously falling from a reference potential and a negative polarity and is applied to the second main electrode used as a scan electrode and generates feeble electric discharges between the first and second main electrodes. The feeble electric discharges are accompanied by a decrease of the wall voltage formed by the charge producing pulse.
摘要:
A method for driving a plasma display panel is provided in which a time necessary for an addressing process is shortened without using any special driving component. The method comprises an addressing process that includes the steps of setting light emission operation of the cells of a display of one screen, starting j-th row selection at a point during (j-1)th row selection, and changing the data electrodes from a control state corresponding to display data of the (j-1)th row to a control state corresponding to display data of the j-th row during a period in which the (j-1)th row selection and the j-th row selection are overlapped with each other.
摘要:
A plasma display panel includes at least one pair of discharge electrodes disposed on a substrate, a drive circuit for applying a discharge voltage to the discharge electrodes, capacity elements for raising voltage connected in series between the discharge electrodes and the drive circuit, and a control circuit for generating discharge across the discharge electrodes. The control circuit applies a charging voltage to the capacity elements for raising voltage and thereafter applies the discharge voltage from the drive circuit to the discharge electrodes via the capacity elements for raising voltage.
摘要:
A display apparatus permitting high resolution and a large number of gray-scale levels and causing indiscernible flicker has been disclosed. One frame is divided into or composed of j subframes, and light is produced according to a luminance level predetermined subframe by subframe in order to express intermediate gray-scale of a picture. Emphasis is put on the fact that display to be performed during each subframe within one frame can be controlled independently. An interlaced-scanning display is carried out during k subframes associated with low-order weighted bits out of j subframes, and a noninterlaced-scanning display is carried out during the other j-k subframes associated with high-order weighted bits. The ratio of an addressing scan time to a subframe associated with a small weight is large, and the ratio of an addressing scan time to a whole frame is very large. If the addressing scan time can be reduced as mentioned above, a great effect would be exerted. Moreover, the luminance levels to be determined in relation to the subframes during which interlaced-scanning display is carried out are so low that the influence of the reduction on a whole picture is limited.
摘要:
When performing the line-sequential addressing for setting the state of each of the cells arranged in rows and columns that constitute a display screen, discharge is generated that has intensity in accordance with display data corresponding to each of all cells belonging to the selected row for each selection of the row. Thus, the priming effect in the following discharge is generated.
摘要:
A large-scale display device having a plurality of display units which each include a plurality of elongated plasma tubes each filled with a discharge gas, and at least one pair of display electrodes disposed outside the plasma tubes, voltage applying means which applies a drive voltage to the display electrodes to cause electric discharge in the plasma tubes for display.Vertically adjoining ones of the display units respectively have adjoining portions which are offset thicknesswise from each other for prevention of contact between the plasma tubes of the vertically adjoining display units. The voltage applying means is disposed away from the adjoining portions of the vertically adjoining display units.
摘要:
When performing the line-sequential addressing for setting the state of each of the cells arranged in rows and columns that constitute a display screen, discharge is generated that has intensity in accordance with display data corresponding to each of all cells belonging to the selected row for each selection of the row. Thus, the priming effect in the following discharge is generated.
摘要:
A light emitting tube array is provided which includes: front and rear plates; and a plurality of elongated light emitting tubes each filled with a discharge gas and disposed parallel to each other between the front and rear plates, the front plate being transparent and having an enough rigidity to support the light emitting tubes, the front plate including at least one pair of display electrodes provided thereon in contact with the light emitting tubes as extending perpendicularly to the light emitting tube, the rear plate having an enough flexibility to adapt to variation in sectional dimensions of the light emitting tubes, the rear plate including address electrodes provided thereon in contact with the respective light emitting tubes as extending longitudinally of the light emitting tubes.
摘要:
A method for driving a plasma display panel having at least first electrodes and second electrodes which cause discharge in cells is provided. The method includes applying a first pulse and a second pulse to the second electrode in an address preparation period. The method also includes applying a scan pulse to the second pulse to the second electrode in an address period. The method includes the first pulse having a voltage changing with time in a positive direction and the second pulse having a voltage changing with time in a negative direction and the scan pulse having a negative voltage which is lower than the attained voltage of the second pulse.
摘要:
A method for driving a plasma display panel having at least three electrodes. The method includes applying a first pulse having a voltage changing with time in a positive direction and a second pulse having a voltage changing with time in a negative direction to a second main electrode in an address preparation period. The method also includes applying a scan pulse to the second main electrode in an address period. The method also includes at least one of the first and second pulses in the address preparation period has a stepwise waveform whose voltage rise or fall stepwise.