The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 05, 2023

Filed:

Nov. 30, 2022
Applicant:

Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);

Inventors:

Sean P. Rodrigues, Ann Arbor, MI (US);

Ercan Mehmet Dede, Ann Arbor, MI (US);

Masaaki Kawauchi, Chita County, JP;

Kojiro Tachi, Nagakute, JP;

Hiroshi Ando, Nagoya, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B60R 11/00 (2006.01); F21S 19/00 (2006.01); G02F 1/13357 (2006.01); B60Q 1/50 (2006.01); F21V 8/00 (2006.01); G02F 1/1335 (2006.01); B60R 11/02 (2006.01); F21S 11/00 (2006.01); G02F 1/1333 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0026 (2013.01); B60Q 1/503 (2013.01); B60R 11/0235 (2013.01); F21S 11/002 (2013.01); F21S 19/00 (2013.01); G02B 6/0063 (2013.01); G02F 1/133618 (2021.01); B60R 2011/004 (2013.01); B60R 2011/0026 (2013.01); G02F 1/13338 (2013.01); G02F 2203/01 (2013.01);
Abstract

Systems and methods for improving the brightness of a transparent display are disclosed herein. One embodiment collects ambient light using an array of diffraction gratings disposed on an external surface of a vehicle to produce filtered ambient light; collects internal light from the vehicle's headlights; filters the internal light to produce filtered internal light; generates primary-source light using a light-emitting-diode (LED) light source; and injects, into a transparent edge-lit liquid crystal waveguide display deployed in at least a portion of a window of the vehicle, the primary-source light, the filtered ambient light, and the filtered internal light in a color-synchronized manner. The filtered ambient light and the filtered internal light improve the brightness of the transparent edge-lit liquid crystal waveguide display.


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