A support pin for an image display apparatus that includes: a back frame (140, 140a) disposed on a rear-surface side of a display panel; a plurality of light-emitting diodes disposed on a front-surface side of the back frame; a luminance uniforming plate which is disposed on a front-surface side of the plurality of LEDs to cover the plurality of LEDs, and makes uniform luminance of light emitted by the plurality of LEDs; and a diffuser plate which is disposed on a front-surface side of the luminance uniforming plate, and diffuses light transmitted through the luminance uniforming plate, the support pin comprising: a pedestal which is adapted to be fixed to the back frame (140, 140a); and a support which extends from the pedestal and adapted to extend toward a front-surface side of the display panel and further adapted to penetrate through the luminance uniforming plate, wherein the support including a tip portion which has a tip end that supports the diffuser plate, and the tip end of the tip portion has a shape of a convex curve, wherein the tip portion of the support is split so as to form a slit from the tip end to a position halfway to a middle portion of the support such that when the support penetrates through the luminance uniforming plate, the split tip portion is restrained by the luminance uniforming plate thereby narrowing the slit so that the tip portion is thinner in comparison to a state before the tip portion is restrained, the pedestal includes a holding portion which is adapted to hold in a sandwiching manner, the back frame (140, 140a) in a thickness direction of the back frame (140,140a), and characterized in that the holding portion includes: a first portion which is adapted to be in contact with a first surface of the back frame (140, 140a) and a second portion which faces the first portion, and is adapted to be in contact with a second surface of the back frame (140, 140a), at least one of a surface of the first portion and the second portion is stepped, such that the back frame (140, 140a) is disposable on the surface of the holding portion, and a first step of the surface protrudes from a second step of the surface such that a space between the second step and the first portion different from a space between the first step and the first portion are formed in the holding portion in a thickness direction of the back frame (140, 140a). a pedestal which is adapted to be fixed to the back frame (140, 140a); and a support which extends from the pedestal and adapted to extend toward a front-surface side of the display panel and further adapted to penetrate through the luminance uniforming plate, wherein the support including a tip portion which has a tip end that supports the diffuser plate, and the tip end of the tip portion has a shape of a convex curve, wherein the tip portion of the support is split so as to form a slit from the tip end to a position halfway to a middle portion of the support such that when the support penetrates through the luminance uniforming plate, the split tip portion is restrained by the luminance uniforming plate thereby narrowing the slit so that the tip portion is thinner in comparison to a state before the tip portion is restrained, the pedestal includes a holding portion which is adapted to hold in a sandwiching manner, the back frame (140, 140a) in a thickness direction of the back frame (140,140a), and characterized in that the holding portion includes: a first portion which is adapted to be in contact with a first surface of the back frame (140, 140a) and a second portion which faces the first portion, and is adapted to be in contact with a second surface of the back frame (140, 140a), at least one of a surface of the first portion and the second portion is stepped, such that the back frame (140, 140a) is disposable on the surface of the holding portion, and a first step of the surface protrudes from a second step of the surface such that a space between the second step and the first portion different from a space between the first step and the first portion are formed in the holding portion in a thickness direction of the back frame (140, 140a). a first portion which is adapted to be in contact with a first surface of the back frame (140, 140a) and a second portion which faces the first portion, and is adapted to be in contact with a second surface of the back frame (140, 140a), at least one of a surface of the first portion and the second portion is stepped, such that the back frame (140, 140a) is disposable on the surface of the holding portion, and a first step of the surface protrudes from a second step of the surface such that a space between the second step and the first portion different from a space between the first step and the first portion are formed in the holding portion in a thickness direction of the back frame (140, 140a).