Patent ID: 6532113
Filing Date: 2003-03-11
Classification: G02B

Abstract:
A display device for use in a vehicle, by which an image for superposition displayed on a display source is projected on a windshield of the vehicle so that the foreground of the vehicle visible from an eye point of the vehicle through the windshield and a virtual image of the image for superposition projected on the windshield, which is superposed upon the foreground, are seen together, comprising:image distortion generating means for distorting the image for superposition in advance and displaying the distorted image for superposition on the display source so that distortion arisen in the virtual image of the image for superposition to be seen from the eye point due to non-flatness of the windshield is canceled out; and distortion pattern adjusting means for adjusting the amount of the distortion of the image for superposition displayed on the display source generated by the image distortion generating means with respect to upper and lower directions and right and left directions of the vehicle in the virtual image of the image for superposition, wherein the distortion pattern adjusting means adjusts a distortion pattern of the image for superposition displayed on the display source generated by the image distortion generating means to a distortion pattern in response to the non-flatness of the windshield and a positional relationship between the windshield and the eye point.