Patent ID: 11966051
Assignee: KYOCERA CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A three-dimensional display device, comprising:
a display panel including subpixels configured to display a parallax image including a first image and a second image having parallax between the images;
a shutter panel configured to define a traveling direction of image light representing the parallax image from the display panel; and
a controller configured to change, in a certain time cycle, areas on the shutter panel in a light transmissive state to transmit the image light with at least a certain transmittance and areas on the shutter panel in a light attenuating state to transmit the image light with a transmittance lower than the transmittance in the light transmissive state, and to change the subpixels to display the first image and the second image based on positions of the areas in the light transmissive state, wherein
the areas in the light transmissive state are first areas,
the areas in the light attenuating state are second areas, the second areas including portions adjacent to the first areas,
the controller is configured to change, in the certain time cycle, the first areas and the second areas such that the first areas are smaller than the second areas and the first areas move with respect to the display panel for each certain time cycle,
the controller is configured to change, in the certain time cycle, the subpixels of the display panel such that the parallax image moves with movement of the first areas and the second areas,
in each time cycle, the first areas move such that a plurality of the portions immediately adjacent to the first areas before the time cycle change to the light transmissive state after the time cycle, and
the display panel has a surface configured to face a user, and the certain time cycle is set to correspond with a period for which continuous irradiation of incoming light directly on a part of the surface configured to face the user is to be avoided, the incoming light coming from a light source external to the three-dimensional display device.