Three-dimensional display apparatus, three-dimensional display system, head up display, head up display system, three-dimensional display apparatus design method, and mobile object

A three-dimensional display system comprising:

• a display apparatus having a display surface including subpixels arranged in a grid in a first direction corresponding to a direction in which parallax is provided to eyes of a user and a second direction approximately orthogonal to the first direction, and configured to display a left-eye image and a right-eye image respectively in first subpixels and second subpixels separated by display boundaries passing along boundaries between the subpixels;
• an optical element configured to selectively transmit at least part of the left-eye image in a direction of an optical path toward a left eye of the user, and selectively transmit at least part of the right-eye image in a direction of an optical path toward a right eye of the user;
• a detection apparatus configured to detect positions of the left eye and the right eye of the user;
• and
• a controller configured to move the display boundaries, based on the positions of the left eye and the right eye of the user detected by the detection apparatus,
• wherein when an arrangement in the first direction of the grid formed by the subpixels is a row and an arrangement in the second direction of the grid is a column, a first sertain number of the first subpixels and of the second subpixels are each successively arranged in each column, a region in which the first subpixels are arranged and a region in which the second subpixels are arranged are displaced from each other in the second direction by a second sertain number between two adjacent columns, and the first sertain number is greater than the second sertain number and is not a multiple of the second sertain number.

A head up display comprising:

• a display apparatus having a display surface including subpixels arranged in a grid in a first direction corresponding to a direction in which parallax is provided to eyes of a user and a second direction approximately orthogonal to the first direction, and configured to display a left-eye image and a right-eye image respectively in first subpixels and second subpixels separated by display boundaries passing along boundaries between the subpixels;
• an optical element configured to selectively transmit at least part of the left-eye image in a direction of an optical path toward a left eye of the user, and selectively transmit at least part of the right-eye image in a direction of an optical path toward a right eye of the user;
• a detection apparatus configured to detect positions of the left eye and the right eye of the user;
• a controller configured to move the display boundaries, based on the positions of the left eye and the right eye of the user detected by the detection apparatus;
• and
• an optical system configured to project image light emitted from the display surface and transmitted through the optical element so as to form a virtual image in a field of view of the user,
• wherein when an arrangement in the first direction of the grid formed by the subpixels is a row and an arrangement in the second direction of the grid is a column, a first sertain number of the first subpixels and of the second subpixels are each successively arranged in each column, a region in which the first subpixels are arranged and a region in which the second subpixels are arranged are displaced from each other in the second direction by a second sertain number between two adjacent columns, and the first sertain number is greater than the second sertain number and is not a multiple of the second sertain number.

A three-dimensional display apparatus design method for a three-dimensional display apparatus including:

• a display apparatus having a display surface including subpixels arranged in a grid in a first direction corresponding to a direction in which parallax is provided to eyes of a user and a second direction approximately orthogonal to the first direction, and configured to display a left-eye image and a right-eye image respectively in first subpixels and second subpixels separated by display boundaries passing along boundaries between the subpixels;
• and an optical element configured to selectively transmit at least part of the left-eye image in a direction of an optical path toward a left eye of the user, and selectively transmit at least part of the right-eye image in a direction of an optical path toward a right eye of the user, the three-dimensional display apparatus design method comprising:
• determining a optimum viewing distance;
• determining an image pitch that is a pitch in the first direction with which the left-eye image and the right-eye image are displayed, based on the optimum viewing distance;
• determining a first sertain number and a second sertain number based on the image pitch, the first sertain number being greater than the second predetermined number;
• and
• determining an arrangement method of the first subpixels and the second subpixels and a shape of the optical element based on the first sertain number and the second sertain number, wherein when an arrangement in the first direction of the grid formed by the subpixels is a row and an arrangement in the second direction of the grid is a column, the first sertain number of the first subpixels and of the second subpixels are each successively arranged in each column, and a region in which the first subpixels are arranged and a region in which the second subpixels are arranged are displaced from each other in the second direction by the second sertain number between two adjacent columns.