Display device and display method with distortion suppression
A display device includes a display panel, an optical element configured to collect light emitted from the display panel to user's eyes, and a drive circuit configured to drive the display panel based on an image signal having information on an image. The drive circuit generates a corrected image obtained by applying correction to the image to cause distortion, based on distortion caused by the optical element, and displays the corrected image on the display panel.
1. A display device comprising:
a display panel;
an optical element configured to collect light emitted from the display panel to user's eyes; and
a drive circuit configured to drive the display panel based on an image signal having information on an image to generate an image, wherein
the display panel has a flat plate shape,
the optical element has a flat plate shape,
the display panel and the optical element are arranged facing each other in a first direction perpendicular to a direction in which the display panel and the optical element each extend,
the drive circuit corrects the image by applying correction to the image to cause distortion, based on distortion aberration caused by the optical element, and allows the display panel to display the corrected image,
the display panel emits linearly polarized light toward the optical element, and
the optical element comprises:
a phase difference plate configured to convert the linearly polarized light to circularly polarized light; and
a liquid crystal element configured to collect the circularly polarized light to the user's eyes.
2. The display device according to claim 1 , wherein a degree of distortion of the corrected image from a center of the corrected image radially outward increases as the corrected image tends from the center of the corrected image radially outward.
3. A display method performed by a display device configured to collect light emitted by a display panel to user's eyes by means of an optical element, the display method comprising:
acquiring an image signal including information on an image to generate an image;
correcting the image based on distortion aberration caused by the optical element; and
displaying the corrected image on the display panel, wherein
the display panel has a flat plate shape,
the optical element has a flat plate shape,
the display panel and the optical element are arranged facing each other in a first direction perpendicular to a direction in which the display panel and the optical element each extend,
the display panel emits linearly polarized light toward the optical element, and
the optical element comprises:
a phase difference plate configured to convert the linearly polarized light to circularly polarized light; and
a liquid crystal element configured to collect the circularly polarized light to the user's eyes.
4. The display method according to claim 3 , wherein, at the correcting, the display device increases a degree of distortion radially outward as the image tends from a center of the image radially outward.