US 12,228,810 B2
Image panel having composite image using color changing with backlight illumination
Matthew Wade Fenton, Elmira, NY (US); and Joshua Lee Tokar, Horseheads, NY (US)
Assigned to CORNING INCORPORATED, Corning, NY (US)
Filed by CORNING INCORPORATED, Corning, NY (US)
Filed on May 9, 2023, as Appl. No. 18/195,127.
Application 18/195,127 is a continuation of application No. 17/218,479, filed on Mar. 31, 2021, granted, now 11,681,173.
Claims priority of provisional application 63/004,723, filed on Apr. 3, 2020.
Prior Publication US 2023/0273470 A1, Aug. 31, 2023
Int. Cl. G02F 1/1333 (2006.01); G09G 3/34 (2006.01)
CPC G02F 1/133331 (2021.01) [G09G 3/3413 (2013.01); G09G 3/342 (2013.01); F21V 2200/20 (2015.01)] 19 Claims
OG exemplary drawing
 
1. An image panel, comprising:
a transparent substrate comprising a first major surface and a second major surface, the second major surface being opposite the first major surface;
a first image layer disposed on the second major surface of the transparent substrate;
a diffuser layer disposed on the first image layer, wherein the diffuser layer reflects ambient light passing initially through the first image layer to enhance visibility of the first image layer through the transparent substrate from the ambient light such that the image panel exhibits a first image from the ambient light when the image panel viewed from the first major surface;
a second image layer disposed on the diffuser layer, wherein the diffuser layer is configured to block visibility of the second image layer from the ambient light, wherein, when the image panel is backlit from the second major surface, the second image layer modifies a color of a region of the first image to form a composite image when the image panel is viewed from the first major surface, wherein, when the second major surface is backlit, light is transmitted through inks of the second image layer and the first image layer to form the composite image via subtractive color mixing from the light by material of both the first image layer and the second image layer.