Head-up display device comprising: a projector for generating a light beam conveying information to be displayed, a retractable combiner having a display position for displaying the information in the field of view of a user and a storage position, said display position and said storage position being situated on respective opposite sides of a combiner deployment aperture; an optical system configured to define an optical path between the projector and the combiner when the latter is in its display position; an actuating mechanism for moving the combiner from its storage position into its display position and vice versa; the actuating mechanism comprising a lifter carriage bearing the combiner, the actuating mechanism being designed so that the lifter carriage performs a translational stroke to move the combiner between its storage position and its display position; the head-up display device comprising a shutter member closing said deployment aperture when the combiner is in its storage position, the shutter member being connected to the actuating mechanism so as to close and open the deployment aperture during at least part of the translational stroke of the lifter carriage; characterized in that the combiner is pivotable on the lifter carriage so that, in the display position of the combiner, the direction in which the combiner diverts the light beam conveying the information to be displayed can be adjusted, in that the combiner is held upright on the lifter carriage by spring means during the stroke thereof, the combiner coming into abutment against a stop when it has reached its display position, the lifter carriage being configured to stretch the spring means at the end of its translational stroke and thereby to pivot the combiner on the lifter carriage, and in that the end of the carriage stroke is adjustable for adjusting the direction in which the combiner diverts the light beam conveying the information to be displayed. a projector for generating a light beam conveying information to be displayed, a retractable combiner having a display position for displaying the information in the field of view of a user and a storage position, said display position and said storage position being situated on respective opposite sides of a combiner deployment aperture; an optical system configured to define an optical path between the projector and the combiner when the latter is in its display position; an actuating mechanism for moving the combiner from its storage position into its display position and vice versa; the actuating mechanism comprising a lifter carriage bearing the combiner, the actuating mechanism being designed so that the lifter carriage performs a translational stroke to move the combiner between its storage position and its display position; the head-up display device comprising a shutter member closing said deployment aperture when the combiner is in its storage position, the shutter member being connected to the actuating mechanism so as to close and open the deployment aperture during at least part of the translational stroke of the lifter carriage; characterized in that the combiner is pivotable on the lifter carriage so that, in the display position of the combiner, the direction in which the combiner diverts the light beam conveying the information to be displayed can be adjusted, in that the combiner is held upright on the lifter carriage by spring means during the stroke thereof, the combiner coming into abutment against a stop when it has reached its display position, the lifter carriage being configured to stretch the spring means at the end of its translational stroke and thereby to pivot the combiner on the lifter carriage, and in that the end of the carriage stroke is adjustable for adjusting the direction in which the combiner diverts the light beam conveying the information to be displayed.