公开(公告)号：WO1981000663A1

公开(公告)日：1981-03-05

申请号：PCT/US1980001072

申请日：1980-08-19

Applicant: NCR CORP

Inventor： NCR CORP ,  CURRY J

IPC: H05B41/30

CPC classification number: G09G3/29

Abstract: A system for loading a DC multiline plasma charge transfer device (26) and for holding charges applied thereto. Each line of the device includes input (1) and transfer electrodes (20) positioned on opposing walls which define a channel (16) confining an ionizable medium. The transfer electrodes (20) comprise adjacent groups of four electrodes (A, B, C, D, ) with two (20B, 20D) driven in common with like electrodes of all other lines, and with timing of pulses applied by common drivers being regular and constant. A common driver (56) is also utilized for the input electrodes (1) of each line while logic control is applied to the input driver and to the other transfer electrodes (20A, 20C) for each line. With this system and with a minimum of drive electronics, the charges may be shifted to a desired location and in desired patterns along the length of the device. The charges may be held at the desired location by circulating the charges between a set of electrodes at the desired holding location including two commonly driven electrodes (20B, 20D). Additional input can be achieved on any line while maintaining prior input.

公开(公告)号：WO1982000730A1

公开(公告)日：1982-03-04

申请号：PCT/US1981001026

申请日：1981-07-30

Applicant: NCR CORP

Inventor： NCR CORP ,  SKAGGS W ,  CURRY J

IPC: G09G03/28

CPC classification number: G09G3/296 ,  G09G3/294

Abstract: In a control system (10) for a plasma display panel (12) having a cell (14a-14i) formed at the cross-over point of each of the panel's column and segment electrodes (C u, C u, C u and S u, S u, S u) AC drive signals having positive and negative components are simultaneously applied to the column and segment electrodes (C u, C u, C u and S u, S u, S u) associated with a designated cell (14a-14i) of the panel (12). These drive signals are 180` out-of-phase and are arranged to produce across the designated cell a voltage swing of sufficient magnitude to produce a discharge therein. In one embodiment of the drive scheme, the positive and negative components of each drive signal are equal. In a second embodiment of the drive scheme, the positive and negative components of each drive signal are not equal. The control system (10) includes a DC-to-AC convertor for producing the AC drive signals, a driver circuit (20a, 20b, 20c) associated with each column electrode (C u, C u, C u) of the display panel and a driver circuit (18a, 18b, 18c) associated with each segment electrode (S u, S u, S u) of the display panel. Each of the column and segment driver circuits is operable to provide to its associated column or segment electrodes both of the components of its associated AC drive signal if it is selected or only one of the components of its associated drive signal it is not selected. In this way, the positive and negative components of the AC drive signals are selectively applied to the panel's column and segment electrodes to produce a desired illumination pattern.

Abstract translation: 在用于等离子体显示面板（12）的控制系统（10）中，具有形成在每个面板的列和分段电极（C u，C u）的交叉点处的单元（14a-14i） u，u，u u，u u，u u，u u u）具有正和负分量的AC驱动信号同时施加到列和段电极（C u， （u，u，u，u，u）与面板（12）的指定单元（14a-14i）相关联。 这些驱动信号是180°异相的，并且被布置成在指定的单元上产生足够大的电压摆幅以在其中产生放电。 在驱动方案的一个实施例中，每个驱动信号的正和负分量相等。 在驱动方案的第二实施例中，每个驱动信号的正和负分量不相等。 控制系统（10）包括用于产生AC驱动信号的DC-AC转换器，与每个列电极（C u，C u，C）相关的驱动电路（20a，20b，20c） 和与显示面板的每个分段电极（S u，S u，u u））相关联的驱动器电路（18a，18b，18c）。 列和段驱动器电路中的每一个可操作以提供其相关联的列或分段电极其相关联的AC驱动信号的两个组件，如果它被选择，或仅其相关联的驱动信号的组件中的一个未被选择。 以这种方式，交流驱动信号的正和负分量被选择性地施加到面板的列和分段电极以产生期望的照明图案。