IMAGE DISPLAY DEVICE

PROBLEM TO BE SOLVED: To provide a long-life image display device excelling in display quality by applying a discharge countermeasure to a boundary part between a black matrix film and a glass surface of a front substrate to drastically reduce the number of the occurrence of discharge. SOLUTION: This flat image display device includes: a back substrate 1 having at least a plurality of electron sources 10 on a glass substrate; the front substrate 2 arranged oppositely to the back substrate 1, and having at least a fluorescent film; and a frame body 3 interposed between the back substrate 1 and the front substrate 2. A high-resistance film 18 covering an end 161 of the black matrix film 16 constituting the fluorescent film, and extending along the inside wall surface 31 of the frame body 3 is arranged, and a large film width is secured for the high-resistance film 18, whereby the number of the occurrence of discharge is drastically reduced. COPYRIGHT: (C)2009,JPO&INPIT