| 摘要 |
A CATHODE RAY TUBE ACCORDING TO THE INVENTION COMPRISES AN INTERNAL CONDUCTIVE FILM (117) ARRANGED ON THE INNER WALL SURFACE OF THE ENVELOPE AND EXTENDING FROM THE FUNNEL SECTION (102) TO THE NECK SECTION (105) AND A HIGH RESISTANCE CONDUCTIVE FILM (114) ARRANGED IN THE NECK SECTION (105) TO CONTACT THE INTERNAL CONDUCTIVE FILM (117) AT AN END OF THEREOF AND SURROUND PART OF THE ELECTRON GUN ASSEMBLY (107). THE HIGH RESISTANCE CONDUCTIVE FILM (114) SHOWS AN ELECTRIC RESISTANCE HIGHER THAN THAT OF THE INTERNAL CONDUCTIVE FILM (117). ADDITIONALLY, IN A CATHODE RAY TUBE ACCORDING TO THE INVENTION, THE ELECTRIC RESISTANCE OF THE HIGH RESISTANCE CONDUCTIVE FILM (114) IN TERMS OF PER UNIT LENGTH ALONG THE AXIS OF THE TUBE IS LOWER AT AND NEAR THE CONTACT REGION (115) HELD IN CONTACT WITH THE CORRESPONDING END OF THE INTERNAL CONDUCTIVE FILM (117) THAN AT AND NEAR THE OPPOSITE END (116) OF THE HIGH RESISTANCE CONDUCTIVE FILM (114).
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