Shading device and image display module

A shading device comprising:

• a shading member, the shading member having a plate shape;
• a display apparatus disposed on a surface of the shading member, the surface being to face an operator during use of the shading member, in such a manner that a display portion faces the operator;
• an image pickup device to pick up, as an image, a region which an opposite surface of the surface faces, and generate image pickup data;
• a data processing circuit to generate display image data to be displayed on the display portion during use of the shading member, based on the image pickup data generated by the image pickup device,
• a first detector to detect a position of the shading member capable of rotating;
• and
• a second detector to detect a position of an eye of the operator of the shading member, wherein
• the data processing circuit further comprises:
• an angle identification circuit to identify an angle of the surface of the shading member relative to a line of vision of the operator facing the shading member, based on a result of detection of the first detector and a result of detection of the second detector;
• and
• a data correction circuit to correct the image pickup data based on a difference of an angle of the surface relative to a given reference angle, and
• the data processing circuit generates the display image data based on image pickup data corrected by the data correction circuit to display, on the display apparatus, a display image corrected for the difference of the angle of the surface relative to the given reference angle.