Display apparatus and its control method
AssigneeCanon Kabushiki Kaisha
InventorsNobuo Fukushima, Yasuyuki Yamazaki
Life of this patent
Estimating the term…
Abstract
In a head-mount display apparatus with which an observer can observe images displayed on display units arranged in correspondence with the right and left eyes of the observer while wearing the apparatus on his or her head, first and second image display ranges are defined on each display unit. An angular velocity detection unit detects the displacement of the head of the observer, and changes the positions of the first and second image display ranges on the display units relative to each other on the basis of the detected displacement information of the head. As a result, a natural display corresponding to the movement of the head can be attained in real time even under the condition of a limited image memory capacity.
Claims46
A display apparatus having a display unit which displays an image that can be observed by an observer while being mounted on a head of the observer, comprising:
- first image input means for inputting a first image information;
- second image input means for inputting a second image information;
- display means which defines a first image display range and a second image display range on the display unit, and displays said first and second image information on said first and second image display range respectively;
- detection means for detecting a displacement of said display apparatus;
- and
- first control means for displaying said first image display range with said second image display range, changing a relative positional relationship between the first and second image display ranges on the basis of the displacement detected by said detection means in a case that the detected displacement amount is greater than a predetermined amount, and maintaining said relative positional relationship unchanged in a case that the detected displacement amount is smaller than the predetermined amount.
A display apparatus for displaying images corresponding to right and left eyes, respectively, of an observer based on an input video signal on display units for the right and left eyes, comprising:
- setting means for setting a magnification factor used for enlarging/reducing the images;
- enlargement/reduction means for electrically enlarging/reducing the images in accordance with the magnification factor set by said setting means;
- and
- display means for displaying the images enlarged/reduced by said enlargement/reduction means on each of the display units for the right and left eyes to maintain a relative positional relationship between the images and a display range of each of the display units, wherein said setting means detects magnification information indicating the magnification factor from the video signal, and sets the magnification factor on the basis of the magnification information.
A display apparatus for displaying images corresponding to right and left eyes, respectively, of an observer based on an input video signal on display units for the right and left eyes, comprising:
- first setting means for setting a magnification factor used for enlarging/reducing the images;
- enlargement/reduction means for electrically enlarging/reducing the images in accordance with the magnification factor set by said first setting means;
- second setting means for desirably setting display positions independently and separately on the display units for the right and left eyes, of the images enlarged/reduced by said enlargement/reduction means;
- and
- display means for displaying the images enlarged/reduced by said enlargement/reduction means at the display positions set by said second setting means on the display units for the right and left eyes.
A control method of a display apparatus having a display unit which displays an image that can be observed by an observer while being mounted on a head of the observer, comprising:
- the inputting step of inputting first image information and second image information;
- the display step of defining a first image display range and a second image display range on the display unit, and displaying said first and second image information on said first and second image display range, respectively;
- the detection step of detecting a displacement of the display apparatus;
- and
- the control step of displaying said first image display range with said second image display range, changing a relative positional relationship between the first and second image display ranges on the basis of the displacement detected in the detection step in a case that the detected displacement amount is greater than a predetermined amount, and maintaining said relative positional relationship unchanged in a case that the detected displacement amount is smaller than the predetermined amount.
A control method of a display apparatus for displaying images corresponding to right and left eyes, respectively, of an observer based on an input video signal on display units for the right and left eyes, comprising:
- the setting step of setting a magnification factor used for enlarging/reducing the images;
- the enlargement/reduction step of electrically enlarging/reducing the image in accordance with the magnification factor set in the setting step;
- and
- the display step of displaying the images enlarged/reduced in the enlargement/reduction step on each of the display units for the right and left eyes to maintain a relative positional relationship between the images and a display range of each of the display units, wherein the setting step includes the step of detecting magnification information indicating the magnification factor from the video signal, and setting the magnification factor on the basis of the magnification information.
A control method of a display apparatus for displaying images corresponding to right and left eyes, respectively, of an observer based on an input video signal on display units for right and left eyes, comprising:
- the first setting step of setting a magnification factor used for enlarging/reducing the images;
- the enlargement/reduction step of electrically enlarging/reducing the images in accordance with the magnification factor set in the first setting step;
- the second setting step of desirably setting display positions independently and separately on the display units for the right and left eyes, of the images enlarged/reduced in the enlargement/reduction step;
- and
- the display step of displaying the images enlarged/reduced in the enlargement/reduction step at the display positions set in the second setting step on the display units for the right and left eyes.
Dependencies are inferred from the claim text.