| 摘要 |
PCT No. PCT/KR96/00129 Sec. 371 Date Mar. 31, 1997 Sec. 102(e) Date Mar. 31, 1997 PCT Filed Aug. 5, 1996 PCT Pub. No. WO97/06551 PCT Pub. Date Feb. 20, 1997Disclosed are a shadow mask, a cathode ray tube having the above shadow mask and a method for manufacturing a screen using the shadow mask. The shadow mask can concentrate electron beams and thereby largely increase luminance even with low electric power without deteriorating the purity of colors. The shadow mask has a first and a second thin metal plates. A first and a second voltages are applied to the first and the second thin metal plates and concentrate the electron beams passing through the first and the second electron beam passing holes respectively formed in the metal plates. The screen is manufactured with a controlled size of a developed area by controlling time using the shadow mask and an electrophotographical process.
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