| 摘要 |
<p>A display panel includes a plurality of cells containing a phosphor material sensitive to ultraviolet light and an ionizable gas which has a characteristic color of cathode glow and, also, generates ultraviolet light when discharged. The gas filling also includes mercury vapor. The method of the invention comprises operating cells at different levels of intensity, determined by input signals so that, at a low level of intensity of cell ionization and current flow, the phosphor is energized and produces its characteristic color of glow which is the dominant light output from the cell. In addition, by operating the panel at a higher level of ionization intensity and current flow, the characteristic color of cathode glow of the gas dominates the phosphor glow and provides the primary glow visible to a viewer. Similarly, if input data signals have widely varying intensities, then the current flow through the display cells varies similarly and the color of light output from the cells varies over a wide range, depending on the relative contribution of each of the components in the cell, the phosphor, the gas, and the mercury.</p> |
