| 摘要 |
PURPOSE:To prevent the break of a coolant sealing portion, by providing a compressible member in a watertight space, which is formed on the outside of the fluorescent faceplate of a cathode-ray tube body and in which a light-permeable coolant is sealed, so as to absorb the thermal expansion of the coolant. CONSTITUTION:A prescribed amount of an adhesive 16A is applied to the outside of a fluorescent faceplate 11 near the peripheral edge thereof. A tubular member 20 is disposed inside the adhesive 16A. A metal frame 14 is bonded around the tubular member 20. Another adhesive 16B is applied to the frame 14 so that a panel 12 is bonded thereto. A coolant 22 is poured into an enclosed space 18 through a pour-in port 15 provided in the frame 14, so that the space is filled with the coolant. The port 15 is then closed. Heat generated in the electron beam reception portion 11A of the fluorescent faceplate 11 is transferred to the coolant 22 from which the heat is transferred to the atmosphere through the metal frame 14 or to a metal stay coupled to the metal frame. The heat is thus removed. |
