| 摘要 |
PURPOSE:To obtain a thin display device of a cathode luminescence type by fixing both ends of cathodes in the holding grooves of a hollow, frame-like spacer so as to maintain each cathode at an exactly uniform distance and arranging the cathods and a phosphor. CONSTITUTION:Many holding grooves 17 are provided at a uniform distance on a pair of facing wall portions of a spacer constituting a rectangular frame, and cathodes 18 are fixed under certain tension. End surfaces not forming the holding grooves 17 are put on a glass substrate 15 and fixed with low-melting point glass 19. On the other hand, one surface of a glass substrate 20 is coated with phosphor 21, and this glass substrate 20 is put on the spacer 16 so that the phosphor 21 faces to the cathode 18 and fixed to the spacer 16 with the low-melting point glass 19. Next, the glass substrate 15 fixed with the spacer 16, cathodes 18, and glass substrate 20 is fixed to a thick glass substrate 22 with low-melting point glass 19, then an upper cover 23 formed in a predetermined shape with a metal mold so as to cover these glass substrates 15, 20 and the spacer 16 is put on the glass substrate 22, and both of them are fixed and united with low-melting point glass 19. |
