Multi-zone EC windows

Patent metadata

Field	Value
Publication number	US-11078721-B2
Application number	US-201816191138-A
Country	US
Kind code	B2
Filing date	Nov 14, 2018
Priority date	Mar 13, 2012
Publication date	Aug 3, 2021
Grant date	Aug 3, 2021

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.

First claim

We claim:

1. An electrochromic window, comprising:
a transparent substrate;
an electrochromic device disposed on the transparent substrate, the electrochromic device comprising two transparent conductive layers and one or more layers disposed between the transparent conductive layers; and
a pair of bus bars disposed lengthwise along opposing edges of the electrochromic device, one bus bar of the pair of bus bars in electrical communication with one of the two transparent conductive layers and the other bus bar of the pair of bus bars in electrical communication with the other of the two transparent conductive layers; each bus bar varying in electrical resistivity along its length, and each bus bar configured to establish a tint gradient along the length of the electrochromic device.

2. The electrochromic window of claim 1 , wherein each of the pair of bus bars comprises a geometry and/or material composition that varies along its length.

3. The electrochromic window of claim 1 , wherein each of the pair of bus bars varies in width or thickness along its length.

4. The electrochromic window of claim 1 , wherein each of the pair of bus bars varies in composition along its length.

5. The electrochromic window of claim 1 , wherein each of the pair of bus bars varies in cross-sectional area along its length.

Assignees

• View Inc

Inventors

• Shrivastava Dhairya
• Friedman Robin
• Khosla Vinod
• Mulpuri Rao
• Pradhan Anshu A

Classifications

• G09F19/227 Primary

  on windows · CPC title

• G02F1/153 Primary

  Constructional details · CPC title

• G09F23/02

  the advertising matter being displayed by the operation of the article · CPC title

• E06B3/6715

  specially adapted for increased thermal insulation or for controlled passage of light (E06B3/66323 takes precedence; coating of glass pains C03C17/00; devices or arrangements for controlling the intensity, colour, phase, polarisation or direction of light G02F1/00) · CPC title

• E06B3/6722

  with adjustable passage of light · CPC title