| 摘要 |
<p>A colour cathode ray tube (1) comprises a vacuum envelope (2) including a panel (3) with an inner surface, a neck (4) and a funnel (5) connecting the neck to the panel, a phosphor screen (6) provided on the inner surface of the panel for emitting visible light, an electron gun (7) provided in the neck for emitting a plurality of electron beams (8) towards the phosphor screen with a predetermined distance from the phosphor screen, and a porous layer (15) which is formed on a surface of the shadow mask facing the electron gun. The porous layer is formed by using metal alkoxide solution which includes black pigment containing both cobalt oxide and nickel oxide.</p> |
