A display manufacturing device for sticking a transparent panel to a display panel, the display panel including a front surface having a periphery covered by a bezel, wherein an inner peripheral edge of the bezel has a rectangular shape, the display manufacturing device comprising: a dispenser that makes a dam by dispensing a light curable resin to straddle the front surface of the display panel and the bezel, and be along an inner peripheral edge of the bezel to stick the transparent panel to the front surface of the display panel; and at least one light irradiation device (102A, 102B) that emits light that cures the dam, wherein the at least one light irradiation device (102A, 102B) emits the light in a direction that forms an acute angle between the direction and the front surface of the display panel, the direction being a direction that allows the light to reach the light curable resin that has entered a gap between the front surface and the bezel, wherein the display manufacturing device further comprises a movable head to which the dispenser is attached and that moves relative to the display panel in such a manner that the movable head moves parallel to the front surface of the display panel, and moves along an inner peripheral edge of the bezel, characterized in that the at least one light irradiation device (102A, 102B) includes two light irradiation devices (102A, 102B) that are attached to the movable head, and the movable head is configured to turn 90° about a turning center line that passes through a center of a resin dispensing outlet of the dispenser and is perpendicular to the front surface of the display panel, and the two light irradiation devices (102A, 102B) are attached to the movable head in such a manner that the two light irradiation devices (102A, 102B) have a 180° rotational symmetry about the turning center line of the movable head. a dispenser that makes a dam by dispensing a light curable resin to straddle the front surface of the display panel and the bezel, and be along an inner peripheral edge of the bezel to stick the transparent panel to the front surface of the display panel; and at least one light irradiation device (102A, 102B) that emits light that cures the dam, wherein the at least one light irradiation device (102A, 102B) emits the light in a direction that forms an acute angle between the direction and the front surface of the display panel, the direction being a direction that allows the light to reach the light curable resin that has entered a gap between the front surface and the bezel, wherein the display manufacturing device further comprises a movable head to which the dispenser is attached and that moves relative to the display panel in such a manner that the movable head moves parallel to the front surface of the display panel, and moves along an inner peripheral edge of the bezel, characterized in that the at least one light irradiation device (102A, 102B) includes two light irradiation devices (102A, 102B) that are attached to the movable head, and the movable head is configured to turn 90° about a turning center line that passes through a center of a resin dispensing outlet of the dispenser and is perpendicular to the front surface of the display panel, and the two light irradiation devices (102A, 102B) are attached to the movable head in such a manner that the two light irradiation devices (102A, 102B) have a 180° rotational symmetry about the turning center line of the movable head.