US 12,081,726 B2
Three-dimensional display device, three-dimensional display system, and movable object
Kaoru Kusafuka, Tokyo (JP); Takashi Shimada, Otsu (JP); Ryo Tadauchi, Otsu (JP); and Kenji Ogura, Ritto (JP)
Assigned to KYOCERA CORPORATION, Kyoto (JP)
Appl. No. 17/765,372
Filed by KYOCERA Corporation, Kyoto (JP)
PCT Filed Oct. 1, 2020, PCT No. PCT/JP2020/037464
§ 371(c)(1), (2) Date Mar. 30, 2022,
PCT Pub. No. WO2021/066111, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 2019-181616 (JP), filed on Oct. 1, 2019.
Prior Publication US 2022/0345686 A1, Oct. 27, 2022
Int. Cl. H04N 13/31 (2018.01); G02B 27/01 (2006.01); G02B 30/32 (2020.01); H04N 13/383 (2018.01); H04N 13/398 (2018.01); B60K 35/00 (2006.01); B60K 35/21 (2024.01); B60K 35/23 (2024.01); B60K 35/81 (2024.01)
CPC H04N 13/31 (2018.05) [G02B 27/0101 (2013.01); G02B 27/0179 (2013.01); G02B 30/32 (2020.01); H04N 13/383 (2018.05); H04N 13/398 (2018.05); B60K 35/00 (2013.01); B60K 35/211 (2024.01); B60K 35/23 (2024.01); B60K 35/81 (2024.01); G02B 2027/0134 (2013.01); G02B 2027/0187 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A three-dimensional display device, comprising:
a display panel including an active area including a plurality of subpixels, the active area being configured to display a parallax image;
an optical panel including a plurality of less-transmissive portions and a plurality of transmissive portions, the plurality of less-transmissive portions and the plurality of transmissive portions being repeatedly arranged alternately in a parallax direction; and
a controller configured to control the display panel,
wherein the active area includes first viewable areas which emit image light reaching a first eye of a user, second viewable areas which emit image light reaching a second eye of the user, and binocular viewable areas which emit image light reaching the first and second eyes of the user, each of the plurality of transmissive portions has a first width in the parallax direction greater than a second width of each of the plurality of less-transmissive portions in the parallax direction,
the binocular viewable area has a width in the parallax direction smaller than a width of the subpixel on the display panel viewed from the user at an optimum viewing distance, and
the controller causes a black image to be displayed by subpixels on both ends of the first viewable areas and the second viewable areas in the parallax direction to allow parallax separation of the parallax image.