IP Library Granted Patent US 12,512,786
Granted Patent B2
US 12,512,786 · App. 18/477,962 · Granted Dec 30, 2025

System to display a vivid image on solar cells

Inventors: Songtao Wu (Ann Arbor, MI); Debasish Banerjee (Ann Arbor, MI); Brian Woods (Brighton, MI); Taizo Masuda (Yokohama, JP); Ryota Tomizawa (Susono, JP)
Assignees: Toyota Motor Engineering & Manufacturing North America, Inc.; Toyota Jidosha Kabushiki Kaisha
H02S40/22G02B3/005G02B19/0009G02B19/0042H02S20/26H02S40/38
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Quick Facts
Patent No.
US 12,512,786
App. No.
18/477,962
Granted
Dec 30, 2025
Kind
B2
Abstract

Systems, methods, and other embodiments described herein relate to a device having a lens that directs angles of light toward solar cells and display sections having components that improve image clarity, reflectivity, and vividness. In one embodiment, a system includes a lens that directs incident light within a first angular range for absorption and a second angular range toward viewing material. The system also includes that the viewing material is within sections of the lens and forms an image. The system also includes reflective components adjacent to the viewing material within the sections of the lens, the reflective components reach ends of the lens away from the incident light and reflect the incident light within the second angular range that reflects off the viewing material. The system also includes an absorption component that captures energy from the incident light, the absorption component coupled to the lens at the ends and the reflective components.

Claims (54)

1 . A system comprising:

a lens that directs incident light within a first angular range for absorption and a second angular range toward viewing material;

the viewing material is within sections of the lens and forms an image;

reflective components that are adjacent to the viewing material within the sections of the lens, the reflective components positioned away from the incident light and reflect the incident light within the second angular range that reflects off the viewing material, and the reflective components are absent outside the sections; and

an absorption component that captures energy from the incident light, the absorption component coupled to the lens and the reflective components.

2 . The system of claim 1 further comprising:

the lens isolates the incident light between the first angular range and the second angular range by wrapping around the viewing material and the reflective components until reaching a surface associated with the lens, and the sections are one of grooves and cavities associated with the lens.

3 . The system of claim 2 , wherein the image on the viewing material is unviewable within the first angular range and visible within the second angular range.

4 . The system of claim 2 further comprising:

a power system that stores the energy, the power system coupled to a controller;

an actuator coupled to the absorption component, the lens, and the controller,

the controller signals the actuator to shift the absorption component and the lens that causes a visual effect on the image; and

the controller draws power for the actuator from the power system.

5 . The system of claim 1 further comprising:

the lens is a spherical lens that is mounted horizontally; and

the first angular range is greater than the second angular range associated with the spherical lens.

6 . The system of claim 1 , wherein the first angular range is equal to or greater than the second angular range when the lens is mounted vertically and the viewing material is thicker than the reflective components within the sections.

7 . The system of claim 1 further comprising:

the lens and the absorption component are composed of flexible material; and

the lens and the absorption component that curve to form a shape that displays the image, and the image is viewable when in the shape.

8 . The system of claim 1 , wherein the absorption component has solar cells that attach to the lens with magnetic strips that allow detachability between the solar cells and the lens.

9 . The system of claim 1 , wherein the lens is an acrylic material that directs the incident light, and the absorption component directly attaches to the lens with an adhesive that is optically clear.

10 . The system of claim 1 further comprising:

the viewing material being a pigment having structural color tuned to wavelengths on a visible spectrum through interference of the incident light, and the structural color has layers of varying thickness and material for concentrated reflectivity at the wavelengths; and

the pigment forms pixels to display the image.

11 . A system comprising:

a lenticular waveguide as a lens that directs incident light within a first angular range for absorption and a second angular range toward viewing material;

the viewing material is printed within sections of the lenticular waveguide and forms an image;

reflective components that are printed adjacent to the viewing material within the sections of the lenticular waveguide, the reflective components proximate to the lenticular waveguide away from the incident light and reflect the incident light within the second angular range that illuminates the image, and the reflective components are absent outside the sections; and

an absorption component that captures energy from the incident light, the absorption component attached to the lenticular waveguide and the reflective components.

12 . The system of claim 11 further comprising:

the lenticular waveguide isolates the incident light between the first angular range and the second angular range by wrapping around the viewing material and the reflective components until reaching ends associated with the lenticular waveguide, and the sections are one of grooves and cavities associated with the lenticular waveguide.

13 . The system of claim 12 , wherein the image on the viewing material is unviewable within the first angular range and visible within the second angular range.

14 . The system of claim 12 further comprising:

a power system that stores the energy, the power system coupled to a controller;

an actuator coupled to the absorption component, the lenticular waveguide, and the controller;

the controller signals the actuator to shift the absorption component and the lenticular waveguide that causes a visual effect on the image, wherein the visual effect is one of three-dimensionality, darkness changes, contrast changes, and color changes; and

the controller draws power for the actuator from the power system.

15 . The system of claim 11 further comprising:

the lenticular waveguide is a spherical lens that is mounted horizontally; and

the first angular range is greater than the second angular range associated with the spherical lens.

16 . The system of claim 11 , wherein the first angular range is equal to or greater than the second angular range when the lenticular waveguide is mounted vertically and the viewing material is thicker than the reflective components within the sections.

17 . The system of claim 11 further comprising:

the lenticular waveguide and the absorption component are composed of flexible material; and

the lenticular waveguide and the absorption component that curve to form a shape that displays the image, and the image is viewable when in the shape.

18 . The system of claim 11 further comprising:

the viewing material being a pigment having structural color tuned to wavelengths on a visible spectrum through interference of the incident light, and the structural color has layers of varying thickness and material for concentrated reflectivity at the wavelengths and the layers cause the interference; and

the pigment forms pixels to display the image.

19 . The system of claim 11 , wherein the lenticular waveguide is an acrylic material that directs the incident light, and the absorption component directly attaches to the lenticular waveguide with an adhesive that is optically clear.

20 . A system comprising:

a lenticular waveguide as a lens that directs incident light within a first angular range for absorption and a second angular range toward viewing material;

transparent pixels that are directly printed within grooves of the lenticular waveguide and form an image;

reflective components that are directly printed adjacent to the transparent pixels within the grooves of the lenticular waveguide, the reflective components proximate to ends of the lenticular waveguide away from the incident light and reflect the incident light within the second angular range that illuminates the transparent pixels, and the reflective components are absent outside the grooves; and

solar cells that capture energy from the incident light, the solar cells directly attached to the lenticular waveguide and the reflective components.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 11, 2023
From: MASUDA, TAIZO; TOMIZAWA, RYOTA
To: TOYOTA JIDOSHA KABUSHIKI KAISHA
Reel/Frame 065179/0095 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 6, 2023
From: WU, SONGTAO; BANERJEE, DEBASISH; WOODS, BRIAN
To: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.; TOYOTA JIDOSHA KABUSHIKI KAISHA
Reel/Frame 065148/0315 →
Continuity (1)
Related Publication 20250112589A1 · Apr 3, 2025
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