US 12,038,580 B2
In-vehicle information display system and information display apparatus
Koji Hirata, Kyoto (JP); Koji Fujita, Kyoto (JP); Eiji Takagi, Kyoto (JP); and Toshinori Sugiyama, Kyoto (JP)
Assigned to MAXELL, LTD., Kyoto (JP)
Filed by Maxell, Ltd., Kyoto (JP)
Filed on Dec. 15, 2022, as Appl. No. 18/081,741.
Application 18/081,741 is a continuation of application No. 17/423,478, granted, now 11,586,040, previously published as PCT/JP2019/049531, filed on Dec. 18, 2019.
Claims priority of application No. 2019-005873 (JP), filed on Jan. 17, 2019.
Prior Publication US 2023/0118314 A1, Apr. 20, 2023
Int. Cl. G02B 27/01 (2006.01); B60K 35/00 (2024.01); B60K 35/23 (2024.01); B60K 35/60 (2024.01); G09G 3/00 (2006.01); B60K 35/22 (2024.01)
CPC G02B 27/0101 (2013.01) [B60K 35/00 (2013.01); G09G 3/002 (2013.01); B60K 35/22 (2024.01); B60K 35/23 (2024.01); B60K 35/60 (2024.01); B60K 2360/1526 (2024.01); B60K 2360/785 (2024.01); G02B 2027/011 (2013.01); G02B 2027/0118 (2013.01); G02B 2027/0147 (2013.01); G09G 2360/04 (2013.01); G09G 2380/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An in-vehicle information display system causing a windshield glass of a vehicle to reflect image light to display image information for an observer, comprising:
a first information display apparatus configured to cause the windshield glass to reflect the image light so that a virtual image is observed by the observer; and
a second information display apparatus configured to cause the windshield glass to reflect the image light so that a reflected image is observed by the observer;
wherein resolution of an image displayed by the first information display apparatus is lower than resolution of an image displayed by the second information display apparatus, and
the second information display apparatus includes
a light source,
an image display panel,
a first polarizer on a light-incident side of the image display panel, and
a second polarizer on a light-outgoing side of the image display panel, the first and second polarizers being configured to output a specific polarized image light having a light intensity modulated by the image information.