Head-mounted display device, scientific or surgical imaging system and method

A method for providing a head-mounted display device, the method comprising:

• arranging a display assembly comprising one or more displays for displaying the image at a main mounting structure of the head-mounted display device, the main mounting structure being suitable for fastening the display assembly and the video processing assembly to the head of a user;
• and
• arranging a video processing assembly comprising processing circuitry for generating at least one processed display signal for the one or more displays based on an input display signal at the main mounting structure,
• wherein at least one of a weight of the display assembly and the video processing assembly and a positioning of the display assembly and the video processing assembly at the main mounting structure is such that a weight distribution between front and back of the head-mounted display device is balanced,
• wherein the video processing assembly comprises a housing and a printed circuit board with the processing circuitry,
• wherein at least one wall of the housing comprises a metal acting as a heatsink for the processing circuitry, wherein the metal acts as a counterweight for the display assembly.