Granted Patent
B2
US 12,393,087 · App. 17/931,423 · Granted Aug 19, 2025
Multi-zone EC windows
Inventors:
Dhairya Shrivastava (Los Altos, CA); Robin Sean Friedman (Redwood City, CA); Vinod Khosla (Portola Valley, CA); Rao P. Mulpuri (Saratoga, CA); Anshu Ajit Pradhan (Collierville, TN)
Assignee:
View Operating Corporation
G02F1/153B23K26/359E06B3/6715E06B3/6722E06B9/24G02F1/1533G09F23/02E06B2009/2405E06B2009/2464G09F19/227Y10T29/49002
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Abstract
Thin-film devices, for example, multi-zone electrochromic windows, and methods of manufacturing are described. In certain cases, a multi-zone electrochromic window comprises a monolithic EC device on a transparent substrate and two or more tinting zones, wherein the tinting zones are configured for independent operation.
Claims (33)
1. An electrochromic window comprising:
a monolithic electrochromic device disposed on a transparent substrate, and comprising a first transparent conductor layer, a second transparent conductor layer, and one or more material layers sandwiched between the first and second transparent conductor layers; and
a powering mechanism comprising two or more power leads in electrical communication with the first and second transparent conductor layers via one or more bus bars disposed on each of the first and second transparent conductor layers and along the length of the monolithic electrochromic device;
wherein the monolithic electrochromic device is configured to both maintain a tint gradient along its length and maintain a uniform tint across its area, alternatively, only via the powering mechanism and/or the one or more bus bars, and
wherein the two or more power leads comprise a pair of power leads electrically coupled to at least one bus bar of the one or more bus bars.
2. The electrochromic window of claim 1 , configured to establish the tint gradient from either end of the monolithic electrochromic device.
3. The electrochromic window of claim 1 , wherein the two or more power leads comprise at least one power lead per each bus bar, wherein each the first and second transparent conductor layers has at least one bus bar.
4. The electrochromic window of claim 1 , wherein each bus bar of the one or more bus bars is configured to be powered by a first voltage at one location and by a second voltage at another location.
5. The electrochromic window of claim 1 , wherein each of the first and second transparent conductor layers has two or more bus bars on each of the first and second transparent conductor layers; each of the two or more bus bars having at least one power lead.
6. The electrochromic window of claim 1 , wherein the one or more bus bars consists of a single bus bar along opposing edges of the monolithic electrochromic device.
7. The electrochromic window of claim 6 , wherein the powering mechanism is configured to apply a voltage gradient to the one or more bus bars.
8. The electrochromic window of claim 6 , wherein each of the one or more bus bars comprises a geometry and/or material composition that varies along its length.
9. The electrochromic window of claim 6 , wherein each of the one or more bus bars varies in width or thickness along its length.
10. The electrochromic window of claim 6 , wherein each of the one or more bus bars varies in electrical resistivity along its length.
11. The electrochromic window of claim 6 , wherein each of the one or more bus bars varies in composition along its length.
12. The electrochromic window of claim 6 , wherein each of the one or more bus bars varies in cross-sectional area along its length.
13. An electrochromic window comprising:
an electrochromic device disposed on a transparent substrate, and comprising a first transparent conductor layer, a second transparent conductor layer, and one or more material layers sandwiched between the first and second transparent conductor layers; and
a bus bar disposed on and in electrical communication with one of the first transparent conductor layer and the second transparent conductor layer, the bus bar electrically coupled to a pair of power leads; and
a powering mechanism comprising one or more powering algorithms configured to control power delivered to the pair of power leads;
wherein the bus bar and the powering mechanism are configured to establish and maintain either a tint gradient along the length of the electrochromic window, or, a uniform tint across the electrochromic device.
14. The electrochromic window of claim 13 , wherein the powering mechanism is configured to apply a voltage gradient to the bus bar via the pair of power leads.
15. An electrochromic window comprising:
a monolithic electrochromic device disposed on a transparent substrate, and comprising a first transparent conductor layer, a second transparent conductor layer, and one or more material layers sandwiched between the first and second transparent conductor layers; and
a powering mechanism comprising two or more power leads in electrical communication with the first and second transparent conductor layers via one or more bus bars on each of the first and second transparent conductor layers and along the length of the monolithic electrochromic device;
wherein the monolithic electrochromic device is configured into two or more tint zones, each of the two or more tint zones configured to both maintain a tint gradient and maintain a uniform tint across its area, alternatively, only via the powering mechanism and/or the one or more bus bars, and
wherein the one or more bus bars comprise two bus bars, one each on the first and second transparent conductor layers and on opposing sides of the monolithic electrochromic device, each of one or more bus bars comprising one or more resistive nodes within each bus bar.
16. The electrochromic window of claim 15 , wherein the one or more bus bars comprises a pair of bus bars for each of the two or more tint zones.
17. The electrochromic window of claim 15 , wherein each of the one or more resistive nodes comprises adjustable resistance.
18. The electrochromic window of claim 17 , wherein each of the one or more resistive nodes' resistance can be varied between 1 mOhm to 1 kOhm.
19. The electrochromic window of claim 17 , wherein each of the one or more resistive nodes' resistance can be varied via a remote control.
20. The electrochromic window of claim 19 , wherein the remote control comprises wireless control.
21. The electrochromic window of claim 20 , wherein the wireless control comprises Bluetooth or Zigbee.
Assignments (3)
MERGER AND CHANGE OF NAME
Recorded Dec 19, 2024
From: VIEW, INC.; PVMS MERGER SUB, INC.; VIEW OPERATING CORPORATION
To: VIEW OPERATING CORPORATION
Reel/Frame 069743/0586 →
SECURITY INTEREST
Recorded Oct 17, 2023
From: VIEW, INC.
To: CANTOR FITZGERALD SECURITIES
Reel/Frame 065266/0810 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Mar 15, 2023
From: SHRIVASTAVA, DHAIRYA; FRIEDMAN, ROBIN; KHOSLA, VINOD; MULPURI, RAO; PRADHAN, ANSHU A.
To: VIEW, INC.
Reel/Frame 062988/0623 →
Continuity (12)
Continuation
15039370
Continuation In Part
PCTUS2013069913
· Nov 13, 2013
Continuation In Part
PCTUS2013031098
· Mar 13, 2013
Provisional Application
61740651
· Dec 21, 2012
Provisional Application
61725980
· Nov 13, 2012
Provisional Application
61610241
· Mar 13, 2012
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