| 摘要 |
<p>The focussing grid structure is formed to focus onto an anode with different luminous elements (7r,7g,7b) all at the same voltage. Micropoints (2) are placed between an output grid (3) and three additional grids (15,16,17) are placed on top. Each grid defines a coaxial hole (19,20;21,22;23,24) in that area. The additional grids are arranged to activate the sub-pixels of the different colours.</p> |
