Head-up display for a motor vehicle, which comprises: - a housing, - an image generation device housed inside the housing, and - a projection system suitable for deflecting the light beam emitted by the image generation device to project said images into the field of view of the driver of the motor vehicle, and characterized in that it also comprises: - an anti-flare screen, which is situated on the path of said light beam and which closes a window formed in the housing, and - an actuator for displacing and/or distorting said anti-flare screen, said actuator being: - designed to displace the anti-flare screen over a predetermined travel, the edge of the window having a form such that it is suitable for ensuring the join between the housing and the anti-flare screen over the entire travel of the anti-flare screen and/or - suitable for distorting the anti-flare screen, being provided on the edge of the window with an interface making it possible to ensure the join between the housing and the anti-flare screen whatever the scale of distortion of the anti-flare screen. - a housing, - an image generation device housed inside the housing, and - a projection system suitable for deflecting the light beam emitted by the image generation device to project said images into the field of view of the driver of the motor vehicle, and characterized in that it also comprises: - an anti-flare screen, which is situated on the path of said light beam and which closes a window formed in the housing, and - an actuator for displacing and/or distorting said anti-flare screen, said actuator being: - designed to displace the anti-flare screen over a predetermined travel, the edge of the window having a form such that it is suitable for ensuring the join between the housing and the anti-flare screen over the entire travel of the anti-flare screen and/or - suitable for distorting the anti-flare screen, being provided on the edge of the window with an interface making it possible to ensure the join between the housing and the anti-flare screen whatever the scale of distortion of the anti-flare screen. - an anti-flare screen, which is situated on the path of said light beam and which closes a window formed in the housing, and - an actuator for displacing and/or distorting said anti-flare screen, said actuator being: - designed to displace the anti-flare screen over a predetermined travel, the edge of the window having a form such that it is suitable for ensuring the join between the housing and the anti-flare screen over the entire travel of the anti-flare screen and/or - suitable for distorting the anti-flare screen, being provided on the edge of the window with an interface making it possible to ensure the join between the housing and the anti-flare screen whatever the scale of distortion of the anti-flare screen. - designed to displace the anti-flare screen over a predetermined travel, the edge of the window having a form such that it is suitable for ensuring the join between the housing and the anti-flare screen over the entire travel of the anti-flare screen and/or - suitable for distorting the anti-flare screen, being provided on the edge of the window with an interface making it possible to ensure the join between the housing and the anti-flare screen whatever the scale of distortion of the anti-flare screen.