An in-train information display apparatus for mounting in a train and adapted to display, to a passenger, advertisement content delivered from an advertisement-content delivering apparatus, the in-train information display apparatus comprising: a display unit configured to display the advertisement content, the advertisement content including at least one scene; a camera configured to photograph a video screen displayed on the display unit; and a display-result determining unit configured to calculate color-related information, which is information concerning a color of the video screen, based on an image photographed by the camera and determine, based on the calculated color-related information and reference information for display result determination, which is information concerning a color of the advertisement content normally displayed on the display unit, whether the display of the advertisement content has been normally performed, and transmit, as information for display achievement calculation, a result of the determination to the advertisement-content delivering apparatus having a totalizing function adapted to collect display result determinations from a plurality of in-train information display apparatuses and calculate a display achievement, wherein in the reference information for display result determination, information indicating which screen display of which scene of advertisement content corresponding thereto is included, and wherein the display-result determining unit performs the determination at a period determined based on a cumulative use time of the display unit, characterized in that the display-result determining unit performs the determination with an interval that is reduced as the cumulative use time of the display unit increases. a display unit configured to display the advertisement content, the advertisement content including at least one scene; a camera configured to photograph a video screen displayed on the display unit; and a display-result determining unit configured to calculate color-related information, which is information concerning a color of the video screen, based on an image photographed by the camera and determine, based on the calculated color-related information and reference information for display result determination, which is information concerning a color of the advertisement content normally displayed on the display unit, whether the display of the advertisement content has been normally performed, and transmit, as information for display achievement calculation, a result of the determination to the advertisement-content delivering apparatus having a totalizing function adapted to collect display result determinations from a plurality of in-train information display apparatuses and calculate a display achievement, wherein in the reference information for display result determination, information indicating which screen display of which scene of advertisement content corresponding thereto is included, and wherein the display-result determining unit performs the determination at a period determined based on a cumulative use time of the display unit, characterized in that the display-result determining unit performs the determination with an interval that is reduced as the cumulative use time of the display unit increases.