Transparency including conductive mesh including a closed shape having at least one curved side

• US 9,986,669 B2
• Filed: 01/28/2016
• Issued: 05/29/2018
• Est. Priority Date: 11/25/2015
• Status: Active Grant

• Current Assignee: PPG Industries Ohio Incorporated (Nouryon BV)
• Original Assignee: PPG Industries Ohio Incorporated (Nouryon BV)
• Inventors: Uprety, Krishna K., Bimanand, Alexander, Lakdawala, Khushroo H.
• Primary Examiner(s): Thompson, Timothy
• Assistant Examiner(s): Azam, Muhammed
• Application Number:
  US15/009,630
• Publication Number:
  US 20170150659A1
• Time in Patent Office: 852 Days
• Field of Search: None
• CPC Class Codes: B64C 1/1476 Canopies; Windscreens or similar transparent elements
• CPC Class Codes: B64C 1/1492 Structure and mounting of the transparent elements in the window or windscreen
• CPC Class Codes: C03C 17/06 with metals C03C17/34, C03C17/44 take precedence
• CPC Class Codes: C03C 17/36 at least one coating being a metal
• CPC Class Codes: C03C 17/3673 specially adapted for use in heating devices for rear window of vehicles
• CPC Class Codes: C03C 17/3676 specially adapted for use as electromagnetic shield
• CPC Class Codes: C03C 17/38 at least one coating being a coating of an organic material
• CPC Class Codes: C03C 2217/94 Transparent conductive oxide layers [TCO] being part of a multilayer coating
• CPC Class Codes: H01Q 15/0013 said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
• CPC Class Codes: H01Q 15/10 comprising three-dimensional array of impedance discontinuities, e.g. holes in conductive surfaces or conductive discs forming artificial dielectric
• CPC Class Codes: H05K 1/0212 Printed circuits or mounted components having integral heating means
• CPC Class Codes: H05K 1/0216 Reduction of cross-talk, noise or electromagnetic interference grounding H05K1/0215
• CPC Class Codes: H05K 1/18 Printed circuits structurally associated with non-printed electric components H05K1/0201, H05K1/023, H05K1/0243, and H05K1/16 take precedence
• CPC Class Codes: H05K 9/0094 being light-transmitting, e.g. transparent, translucent

Abstract

A transparency includes a transparent substrate and a plurality of electrically conductive lines on the transparent substrate, at least one of the electrically conductive lines intersecting at least one other electrically conductive line, and at least one of the electrically conductive lines having a width of no more than 50 μm to reduce distraction resulting from optical diffraction of light transmitted through or reflected by the transparency as compared to a transparency comprising electrically conductive lines having a width greater than 50 μm. A coated substrate includes: a substrate; a dielectric layer on the substrate; and a sensor including a conductive layer on the dielectric layer, where at least one layer selected from the dielectric layer and the conductive layer is formed by at least one method selected from lithography, inkjet printing, and aerosol jet printing.

Claims

1. A transparency comprising:

a transparent substrate; and

a plurality of electrically conductive lines on the transparent substrate, at least one of the electrically conductive lines intersecting at least one other electrically conductive line,

wherein the plurality of electrically conductive lines define an aperture having a closed shape, and

wherein at least one of the electrically conductive lines has undulations having peaks and troughs in a plane defined by the transparent substrate such that a distance between two adjacent peaks is no more than 30 μ

m.

2. The transparency of claim 1, wherein a distance between two of the electrically conductive lines is no more than 1 mm.

3. The transparency of claim 1, wherein the transparency provides electromagnetic interference shielding.

4. The transparency of claim 3, wherein the transparency further comprises a transparent conductive oxide on the substrate.

5. The transparency of claim 4, wherein the transparency provides EMI shielding at a frequency of 3 Hz to 300 kHz.

8. The transparency of claim 1, wherein the undulations have peaks and troughs such that a distance between two adjacent peaks is no more than 20 μ

m.

9. The transparency of claim 1, further comprising:

a dielectric layer on the substrate; and

a sensor comprising a conductive layer on the dielectric layer, wherein at least one layer selected from the dielectric layer and the conductive layer is formed by at least one method selected from lithography, inkjet printing, and aerosol jet printing.

10. The transparency of claim 9, wherein a heater layer is between the substrate and the sensor.

11. The transparency of claim 10, wherein the heater layer comprises the plurality of electrically conductive lines.

12. The transparency of claim 9, wherein the sensor is selected from a temperature sensor, a crack detector, an arc detector, a strain gauge, and a moisture sensor.

13. A vehicle comprising the transparency of claim 1.

14. The vehicle of claim 13, wherein the vehicle is a flying vehicle.

15. The vehicle of claim 13, wherein the vehicle is a ground vehicle.

16. A smart window comprising the transparency of claim 1.

18. The transparency of claim 1, wherein at least one of the electrically conductive lines has a width of no more than 50 μ

m.

6. A transparency comprising:

a transparent substrate; and

a plurality of electrically conductive lines on the transparent substrate, the electrically conductive lines defining an aperture having a shape of a polygon having three curved sides, a first of the curved sides having a direction of curvature toward a center of the polygon, a second and third of the sides being adjacent to the first side and each having a direction of curvature away from the center of the polygon, and each of the curved sides having a radius of curvature of no more than 500 μ

m.

7. The transparency of claim 6, wherein each of the sides of the polygon is curved and has a radius of curvature of no more than 500 μ

m.

17. A coated substrate comprising:

a substrate;

a heater layer on the substrate;

a dielectric layer directly on the heater layer; and

a sensor comprising a conductive layer on the heater layer and directly on the dielectric layer, wherein at least one layer selected from the dielectric layer and the conductive layer is formed by at least one method selected from lithography, inkjet printing, and aerosol jet printing.

19. The coated substrate of claim 17, wherein the sensor is selected from a temperature sensor, a crack detector, an arc detector, a strain gauge, and a moisture sensor.

20. A vehicle comprising the coated substrate of claim 17.