Fabrication of cell cavities for electrooptic devices

• US 20060027260A1
• Filed: 07/20/2005
• Published: 02/09/2006
• Est. Priority Date: 07/20/2004
• Status: Active Grant

• Current Assignee: Ajjer, LLC
• Original Assignee: Electrochromix, Inc.
• Inventors: LeCompte, Robert S., Tonazzi, Juan Carlos Lopez
• Granted Patent: US 7,457,027 B2
• Time in Patent Office: Days
• US Class Current: 136/243
• CPC Class Codes: C09K 9/00 Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy
• CPC Class Codes: G02F 1/1503 caused by oxidation-reduction reactions in organic liquid solutions, e.g. viologen solutions
• CPC Class Codes: G02F 1/161 Gaskets; Spacers; Sealing of cells; Filling or closing of cells
• CPC Class Codes: H01G 9/20 Light-sensitive devices

Abstract

This invention discloses methods to dispense adhesives for fabricating electrooptic devices. In addition the invention also discloses on how the cavities of these electrooptic devices may be filled using detachable tabs. The Electrooptic devices of this invention may comprise liquid or solid electrolytes.

Claims

1. A method of producing a cell for an electrochromic device comprising front and rear spaced elements, each having front and rear surfaces and a seal member bonding said front and rear elements together in a spaced apart relationship to define a chamber, wherein the method comprises injecting a liquid electrolyte in the chamber via a detachable tab.

2. A method as set forth in claim 1, wherein injecting a liquid electrolyte in the chamber comprises applying a sealant to at least one of the front and rear surfaces in a manner that forms a vent and a fluid inlet at the detachable tab, and injecting liquid electrolyte into the chamber via the fluid inlet at the detachable tab.

3. A method as set forth in claim 2, including closing the vent in the sealant when the chamber is filled with the liquid electrolyte.

4. A method as set forth in claim 3, including detaching the tab to form a gap in the sealant, and then closing the gap in the sealant. A method as set forth in claim 4, wherein the front and rear spaced elements are provided in the shape of front and rear elements of a rear-view automotive mirror.

5. A method as set forth in claim 4, wherein the injected electrolyte comprises an electrolyte that solidifies in the chamber by formation of multiphase structure.

6. A method as set forth in claim 4, wherein the injected electrolyte comprises an electrolyte that solidifies in the chamber by formation of cross-links.