US 12,189,246 B2
Display, display system, image projection system, and movable object
Takato Hada, Osaka (JP); Takahiro Akiyoshi, Fukui (JP); Hiroki Hara, Osaka (JP); and Keiji Sugiyama, Kyoto (JP)
Assigned to PANASONIC AUTOMOTIVE SYSTEMS CO., LTD., Kanagawa (JP)
Filed by PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Filed on Sep. 7, 2023, as Appl. No. 18/243,162.
Application 18/243,162 is a continuation of application No. 17/748,497, filed on May 19, 2022, granted, now 11,789,324.
Application 17/748,497 is a continuation of application No. 17/666,184, filed on Feb. 7, 2022, granted, now 11,726,374, issued on Aug. 15, 2023.
Application 17/666,184 is a continuation of application No. 17/094,239, filed on Nov. 10, 2020, granted, now 11,275,281, issued on Mar. 15, 2022.
Application 17/094,239 is a continuation of application No. 16/454,218, filed on Jun. 27, 2019, granted, now 10,871,686, issued on Dec. 22, 2020.
Claims priority of application No. 2018-125448 (JP), filed on Jun. 29, 2018.
Prior Publication US 2023/0418120 A1, Dec. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G02F 1/13 (2006.01); G02B 27/01 (2006.01); G02F 1/1333 (2006.01); G02F 1/1347 (2006.01); G03B 21/16 (2006.01); B60K 35/60 (2024.01)
CPC G02F 1/1347 (2013.01) [G02B 27/0101 (2013.01); G02F 1/133382 (2013.01); G03B 21/16 (2013.01); B60K 35/60 (2024.01); B60K 2360/334 (2024.01); B60K 2360/785 (2024.01)] 16 Claims
OG exemplary drawing
 
1. A head-up display comprising:
a backlight configured to emit light;
a light-diffusion member through which the light emitted by the backlight is transmitted;
a heat sink disposed along at least one side of the light-diffusion member and one side of the backlight;
a Fresnel lens through which the light transmitted through the light-diffusion member is transmitted;
a display screen through which the light transmitted through the Fresnel lens is transmitted; and
a mirror that reflects the light transmitted through the light-diffusion member toward a target space.