| 摘要 |
PURPOSE:To reduce the manufacturing time of a phosphor screen and its material by dividing a specified length section that is stretched toward the other end side from the glass inner wall of a face section into two or more sections and individually screening and separating each divided face section. CONSTITUTION:A glass tube main frame 1 has the 29phi cylindrical screen size and a phosphor screen section that is divided into three at equal intervals of 120 deg. from the central part of an axis by a glass plate 53. Each is fully separated by the glass plate 53 for dividing and screening and the thickness of the plate 53 is the same as the main frame 1. A specified quantity of an aqueous solution 52 as an electrolyte is injected simultaneously into the three-divided main frame 1 from an injection nozzle 51 and subsequently suspensions 62a to 62c in which a green phosphor 3a, blue phosphor 3b, and red phosphor 3c are dispersed separately are quickly injected simultaneously into an aqueous solution as a bonding agent from injection nozzles 61a to 61c. Furthermore, supernatant liquid is exhausted and the phosphor is made to adhere to. As a result, the production time of a phosphor screen and its material can be reduced and a cathode-ray tube for a light source that can improve the resolution of a giant display unit can be obtained. |
