US 11,987,071 B2
Device with backlit colored display and method of manufacture
Jianqiao Yang, North York (CA); and Chulong Yang, North York (CA)
Filed by Jianqiao Yang, North York (CA); and Chulong Yang, North York (CA)
Filed on Apr. 24, 2023, as Appl. No. 18/305,515.
Application 18/305,515 is a continuation in part of application No. PCT/CN2021/125958, filed on Oct. 25, 2021.
Claims priority of application No. 202022428459.5 (CN), filed on Oct. 26, 2020; application No. 202221070638.9 (CN), filed on May 3, 2022; application No. 202222491588.8 (CN), filed on Sep. 19, 2022; application No. 202222570333.0 (CN), filed on Sep. 27, 2022; and application No. 202223168465.7 (CN), filed on Nov. 28, 2022.
Prior Publication US 2023/0249492 A1, Aug. 10, 2023
Int. Cl. F21V 8/00 (2006.01); B32B 3/30 (2006.01); B32B 9/00 (2006.01); B32B 17/06 (2006.01); B44C 5/04 (2006.01); B44F 1/06 (2006.01); F21V 9/08 (2018.01)
CPC B44F 1/06 (2013.01) [B32B 3/30 (2013.01); B32B 9/002 (2013.01); B32B 17/06 (2013.01); B44C 5/0438 (2013.01); F21V 9/08 (2013.01); G02B 6/006 (2013.01); G02B 6/0068 (2013.01); B32B 2255/26 (2013.01); B32B 2255/28 (2013.01); B32B 2307/412 (2013.01); B32B 2551/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A backlit device for displaying an image having variable colors, comprising:
a substrate;
a light-transmissive coloring layer painted or laminated on the substrate, the coloring layer comprising a plurality of colorants of different colors and having a rear side in contact with the substrate and a varnished front side;
a display layer comprising a silvering material directly plated on the varnished front side of the coloring layer, the display layer comprising a display pattern forming a visible displayed image, the silvering material comprising a metal, a metalloid, or an oxide thereof to form a one-way-mirror; and
an illuminator configured and positioned to illuminate the coloring layer from the rear side of the coloring layer,
wherein (i) when the coloring layer is unilluminated by the illuminator, the unilluminated coloring layer is hidden behind the one-way-mirror, and (ii) when the coloring layer is illuminated by the illuminator, the illuminated coloring layer visibly colorizes the displayed image through the one-way-mirror.