Apparatus to maintain a continuously graded transmission state

Patent metadata

Field	Value
Publication number	US-12007659-B2
Application number	US-202217819451-A
Country	US
Kind code	B2
Filing date	Aug 12, 2022
Priority date	Dec 31, 2018
Publication date	Jun 11, 2024
Grant date	Jun 11, 2024

Abstract

An apparatus including a substrate with at least three sides and an active stack on the substrate. The active stack can include a first transparent conductive layer, a second transparent conductive layer, an anodic electrochemical layer, and a cathodic electrochemical layer. The apparatus can also include a first bus bar set comprising a plurality of bus bars, wherein each bus bar of the first bus bar set is electrically coupled to the first transparent conductive layer, a second bus bar set comprising a plurality of bus bars, wherein each bus bar of the second bus bar set is electrically coupled to the second transparent conductive layer, and a bus bar arrangement wherein the bus bar arrangement comprises a bus bar from the first bus bar set and a bus bar from the second bus bar set on at least three sides of the substrate.

First claim

What is claimed is:

1. An apparatus comprising:
a substrate comprising at least four sides;
an active stack on the substrate, the active stack comprising:
a first transparent conductive layer; and
a second transparent conductive layer;

a first bus bar set comprising a plurality of bus bars, wherein each bus bar of the first bus bar set is electrically coupled to the first transparent conductive layer;
a second bus bar set comprising a plurality of bus bars, wherein each bus bar of the second bus bar set is electrically coupled to the second transparent conductive layer, and
a bus bar arrangement wherein the bus bar arrangement comprises a first bus bar from the first bus bar set wrapping around a first corner, a second bus bar from the first bus bar set wrapping around a second corner, a bus bar from the second bus bar set between the first bus bar of the first bus bar set and the second bus bar of the first bus bar set, wherein a bus bar from the first bus bar set and the second bus bar set disposed along at least two sides of the substrate, wherein the bus bar arrangement alternates between a bus bar from the first bus bar set and a bus bar from the second bus bar set along the periphery of the substrate, and wherein only a bus bar from the second bus bar set is on at least one side of the substrate.

2. The apparatus of claim 1 , wherein the first corner is where two sides of the at least four sides of the substrate meet.

3. The apparatus of claim 2 , wherein wrapping around the first corner comprises the first bus bar from the first bus bar set continuously going from one side of the two sides of the first corner to a second side of the two sides of the first corner.

4. The apparatus of claim 1 , wherein each bus bar is separated by a gap.

5. The apparatus of claim 1 , wherein the active stack further comprises:
an anodic electrochemical layer between the first transparent conductive layer and the second transparent conductive layer; and
a cathodic electrochemical layer between the first transparent conductive layer and the second transparent conductive layer.

6. The apparatus of claim 1 , wherein the first corner is different from the second corner.

7. The apparatus of claim 1 , wherein the bus bar arrangement comprises only a bus bar from the first bus bar set on at least one side of the substrate.

8. The apparatus of claim 1 , wherein the active stack further comprises an ion conducting layer between the cathodic electrochemical layer and the anodic electrochemical layer.

9. The apparatus of claim 1 , wherein the active stack further comprises an anodic electrochemical layer between the first transparent conductive layer and the second transparent conductive layer and a cathodic electrochemical layer between the first transparent conductive layer and the second transparent conductive layer.

10. The apparatus of claim 1 , wherein the first transparent conductive layer is between the substrate and the second transparent conductive layer.

11. An apparatus comprising:
a substrate comprising at least four sides;
a first transparent conductive layer;
a second transparent conductive layer;
at least one active layer;
a first bus bar set comprising a plurality of bus bars, wherein each bus bar of the first bus bar set is electrically coupled to the first transparent conductive layer;
a second bus bar set comprising a plurality of bus bars, wherein each bus bar of the second bus bar set is electrically coupled to the second transparent conductive layer, and
a bus bar arrangement wherein the bus bar arrangement comprises a first bus bar from the first bus bar set wrapping around a first corner, a second bus bar from the first bus bar set wrapping around a second corner, and a bus bar from the second bus bar set between the first bus bar of the first bus bar set and the second bus bar of the first bus bar set, wherein the bus bar arrangement is configured to alternate between a bus bar from the first bus bar set and a bus bar from the second bus bar set along the periphery of the substrate, wherein a bus bar from the first bus bar set and a bus bar from the second bus bar set are in-line with each other along the periphery.

12. The apparatus of claim 11 , wherein the substrate is a trapezoid.

13. The apparatus of claim 11 , wherein the first corner is where two sides of the at least four sides of the substrate meet.

14. The apparatus of claim 13 , wherein wrapping around the first corner comprises the first bus bar from the first bus bar set continuously going from one side of the two sides of the first corner to a second side of the two sides of the first corner.

15. The apparatus of claim 14 , wherein each bus bar is separated by a gap.

16. The apparatus of claim 15 , wherein the bus bar arrangement further comprises a bus bar from the first bus bar set and a bus bar from the second bus bar set on at least three sides of the substrate.

17. The apparatus of claim 16 , wherein the bus bar arrangement comprises only a bus bar from the second bus bar set on at least one side of the substrate.

Assignees

• Sage Electrochromics Inc

Inventors

• Wang Yigang
• Vanderveen Cody Daniel
• Bocek Peter

Classifications

• G02F1/163

  Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor · CPC title

• G02F1/1525

  characterised by a particular ion transporting layer, e.g. electrolyte · CPC title

• E06B9/24

  Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; {Slat blinds}(operating, guiding or securing devices or arrangements for roll-type closures E06B9/56; free-hanging flexible screens A47H23/00) · CPC title

• E06B2009/2464

  featuring transparency control by applying voltage, e.g. LCD, electrochromic panels · CPC title

• G02F2201/56

  Substrates having a particular shape, e.g. non-rectangular · CPC title