Abstract: Described is an optical structure configured to be placed in front of an image emitting device. The image emitting device emits an initial image adjusted by the optical structure to form an adjusted image to an observer. The optical structure includes a textured layer placed on an observer's side of the optical structure. The textured layer has a tactile pattern perceptible to the touch by a human body part. The textured layer is made of ink and includes discrete ink dots forming the tactile pattern and/or discrete ink-free dots and ink surrounding the discrete ink-free dots so as to form the tactile pattern.

Abstract: The invention relates to a display device (100) comprising: —a display (150); —a curved and at least partially transparent plate (170); and —a structural part (180) comprising a frame (181) which at least partially frames the display and one end face (182) of which forms a bearing surface onto which said plate is applied. According to the invention, the bearing surface is curved according to a mathematical function which has a hyperbolic cosine term.