公开(公告)号：US4594588A

公开(公告)日：1986-06-10

申请号：US472778

申请日：1983-03-07

Applicant: Terry W. Barclay ,  John R. Cielo ,  William J. Martin ,  James B. Trushell

Inventor： Terry W. Barclay ,  John R. Cielo ,  William J. Martin ,  James B. Trushell

IPC: G09G3/28 ,  G09G3/22

CPC classification number: G09G3/296 ,  G09G3/294 ,  G09G2320/0228 ,  G09G2320/043 ,  G09G2330/026

Abstract: In large size high resolution plasma panels, a smaller discharge gap between the electrodes reduces the operating margin of the panel, i.e., the difference between the maximum and minimum sustain voltage (V.sub.s max and V.sub.s min). Rather than preset these values which vary with each panel at the time of fabrication, the invention provides a control system for determining the V.sub.s max and V.sub.s min and the optimum operating point between these values for each panel. An associated microprocessor determines the V.sub.s min for each panel through a testing algorithm, and the V.sub.s max is provided by either adding a predetermined increment to the V.sub.s min or by a testing sequence. The operating point is designated as a predetermined increment below V.sub.s max. The invention operates each time the panel is turned on, thereby compensating for voltage drift or other panel parameter variations. By using a high speed microprocessor, the entire sequence is accomplished in a short time, while exercising the cells through the test sequence eliminates some of the "start-up" problems sometimes associated with such displays.

Abstract translation: 在大尺寸高分辨率等离子体面板中，电极之间的较小的放电间隙减小了面板的操作裕度，即最大和最小维持电压（Vsmax和Vsmin）之间的差异。 本发明提供了一种用于确定每个面板的Vsmax和Vsmin以及这些值之间的最佳操作点的控制系统。 相关联的微处理器通过测试算法确定每个面板的Vsmin，并且通过向Vsmin添加预定增量或通过测试序列来提供Vsmax。 工作点被指定为低于Vsmax的预定增量。 本发明在面板打开时每次操作，从而补偿电压漂移或其他面板参数变化。 通过使用高速微处理器，整个序列在短时间内完成，而通过测试序列运行单元可消除有时与这种显示器相关的一些“启动”问题。

公开(公告)号：US4200868A

公开(公告)日：1980-04-29

申请号：US892703

申请日：1978-04-03

Applicant: William R. Lamoureux ,  William J. Martin ,  James B. Trushell

Inventor： William R. Lamoureux ,  William J. Martin ,  James B. Trushell

IPC: G09G3/28 ,  G06F3/14

CPC classification number: G09G3/296 ,  G09G3/291 ,  G09G2310/0224 ,  G09G2310/0267

Abstract: A plasma discharge display device is operated at a high frequency above the response range of the inherent wall charge storage phenomenon and utilizes a refresh buffer. The vertical drive selection includes a pair of shift registers operated in parallel into which data from the host or associated controller is loaded, with an individual driver associated with each register stage. The horizontal lines are addressed through associated shift registers in an even-odd interlace sequence to generate a display on a horizontal scan basis. The horizontal drivers are referenced at the level and frequency of the high frequency energizing signals, while the vertical drivers are selectively set to ground or a positive a.c. voltage according to the state of associated register cells. By using the high frequency signal in the horizontal axis as a floating reference and unique selection techniques, the display is operated by low voltage signals. The normal sustain and erase operations associated with conventional plasma discharge devices are eliminated, while the write operation does not require either the precise timing or logical considerations associated with the selective operation of conventional plasma discharge display devices. The low voltage drive requirements permits use of low voltage driver circuitry which is susceptible to low cost monolithic fabrication techniques.

Abstract translation: 等离子体放电显示装置以高于固有壁电荷存储现象的响应范围的高频率运行，并利用刷新缓冲器。 垂直驱动器选择包括一对并行操作的移位寄存器，来自主机或相关联的控制器的数据被加载到与每个寄存器级相关联的单个驱动器。 水平行通过相邻的移位寄存器在偶数交错序列中寻址以在水平扫描的基础上产生显示。 水平驱动器以高频激励信号的电平和频率被参考，而垂直驱动器被选择性地设置为接地或正的交流电。 电压根据相关寄存器单元的状态。 通过使用水平轴上的高频信号作为浮动参考和独特的选择技术，显示由低电压信号操作。 消除了与常规等离子体放电装置相关联的正常维持和擦除操作，而写入操作不需要与常规等离子体放电显示装置的选择性操作相关联的精确定时或逻辑考虑。 低电压驱动要求允许使用易受低成本整体制造技术影响的低电压驱动器电路。

公开(公告)号：US4150363A

公开(公告)日：1979-04-17

申请号：US800765

申请日：1977-05-26

Applicant: Tony N. Criscimagna ,  James B. Trushell

Inventor： Tony N. Criscimagna ,  James B. Trushell

IPC: H01J5/52 ,  H01J17/49 ,  G06F3/14

CPC classification number: H01J11/00 ,  H01J5/52

Abstract: In driving gas panel or plasma display devices, characters are generated on the panel display as a sequence of dots by applying appropriate drive signals to selected orthogonal conductors, each conductor requiring an associated driver. In a low character count small plasma display such as a single row display utilizing a 5.times.7 dot character matrix, a significant load is presented to the horizontal drivers, while a substantial number of drivers are required to drive the vertical axis. To improve the load distribution and increase the drive efficiency of such a system, the horizontal conductors are divided into four distinct groups, with associated drivers, while a single set of vertical conductors is used to drive the vertical conductors, which are positioned to intersect each of the groups of horizontal conductors. The individual load requirements as well as the number of vertical drivers are reduced by a factor of four at a nominal increase in the number of horizontal drivers, thereby providing a significant cost reduction. The specific wiring pattern used to achieve this result on a plasma display device is disclosed herein.

Abstract translation: 在驱动气体面板或等离子体显示装置中，通过向所选择的正交导体施加适当的驱动信号，在面板显示器上产生字符作为一系列点，每个导体需要相关联的驱动器。 在诸如使用5×7点字符矩阵的单列显示器的小字符数小等离子体显示器中，向水平驱动器提供显着的负载，同时需要相当数量的驱动器来驱动垂直轴。 为了改善负载分布并提高这种系统的驱动效率，水平导体被分成四个不同的组，具有相关联的驱动器，而单组垂直导体用于驱动垂直导体，其被定位成与每个 的水平导体组。 单个负载要求以及垂直驱动器的数量在水平驱动器数量的名义上增加时减少了四倍，从而显着降低了成本。 本文公开了用于在等离子体显示装置上实现该结果的具体布线图案。