An image display device, comprising:
- a display panel configured to be able to display a plurality of frames;
- a barrier panel positioned to overlap the display panel and configured to be able to form a one or plural light-transmitting portion and a one or plural dimming portion by which a traveling direction of at least part of image light emitted from the display panel is directed to a right eye of a user and a traveling direction of at least part of the image light is directed to a left eye of the user;
- and
- a controller configured to be able to control the display panel and the barrier panel;
- wherein
- the display panel is configured to be able to form a one or plural first display region and a one or plural second display region,
- the display panel is configured to be able to display a right-eye image visually recognized by the user's right eye in a one or more right-eye visible region of the one or plural first display region and is configured to be able to display a one or more left-eye visible region configured to be able to display a left-eye image visually recognized by the user's left eye in a left-eye visible region of the one or plural first display region, and
- the display panel is configured to be able to display a plane image visually recognized by both eyes of the user in the one or plural second display region,
- the barrier panel is configured to be able to form a one or plural first barrier region corresponding to the first display region and a one or plural second barrier region corresponding to the one or plural second display region,
- the barrier panel is configured to form the one or plural light-transmitting portion and the one or plural dimming portion in the one or plural first barrier region so that the one or plural right-eye visible region and the one or plural left-eye visible region are located at different positions of the one or plural first display region, and
- the barrier panel is configured to form the one or plural light-transmitting portion and the one or plural dimming portion in the one or plural second barrier region according to the plane image displayed in the one or plural second display region,
- when displaying two consecutive frames on the display panel,
- the controller is configured to cause the display panel to display a portion located in the one or plural first display region as one parallax image frame comprising a first sub-frame and a second sub-frame, and
- the controller is configured to cause the display panel to display a portion located in the one or plural second display region as two plane image frames,
- the controller is configured to be able to control display of the parallax image in the one or plural first display region and formation of the one or plural light-transmitting portion and the one or plural dimming portion in the one or plural first barrier region for each parallax image frame so that the user visually recognizes the images displayed in the first sub-frame and the second sub-frame included in the one parallax image frame as one parallax image, and
- the controller is configured to be able to control display of the plane image in the one or plural second display region and formation of the one or plural light-transmitting portion and the one or plural dimming portion in the one or plural second barrier region for each of the plane image frames, and
- a frame rate of sub-frames included in the parallax image frame and a frame rate of the plane image frames are configured to be a same.