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1. 发明授权

US4594588A Plasma display margin control 失效
标题翻译：等离子显示屏边际控制
公开(公告)号：US4594588A
公开(公告)日：1986-06-10
申请号：US472778
申请日：1983-03-07
申请人： Terry W. Barclay , John R. Cielo , William J. Martin , James B. Trushell
发明人： Terry W. Barclay , John R. Cielo , William J. Martin , James B. Trushell
IPC分类号： G09G3/28 , G09G3/22
CPC分类号： G09G3/296 , G09G3/294 , G09G2320/0228 , G09G2320/043 , G09G2330/026
摘要： 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.
摘要翻译：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。

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