Electrochromic lens and method for manufacturing the same

Abstract

This invention relates to an electrochromic lens, comprising a first glass substrate, a first conductive layer, an electrochromic layer, an electrolyte layer, an ion storage layer, a second conductive layer, and a second glass substrate stacked along a thickness direction. Two electrode elements are electrically connected to the first conductive layer and the second conductive layer, respectively. An adhesive layer made of polyvinyl butyral (PVB) is provided between the first glass substrate and the first conductive layer, and between the second glass substrate and the second conductive layer. The electrochromic lens further includes an encapsulating material coated on the outer peripheral surfaces of the first conductive layer, the electrochromic layer, the electrolyte layer, the ion storage layer, and the second conductive layer. This invention also provides a method for manufacturing an electrochromic lens, for producing the electrochromic lens described above.

Claims

1. An electrochromic lens, comprising: A first glass substrate, defining a thickness direction; A first conductive layer is disposed on one side of the first glass substrate in the thickness direction, including a substrate layer and a conductive film layer disposed on the substrate layer; an electrochromic layer is disposed on one side of the first conductive layer opposite to the first glass substrate; an electrolyte layer is disposed on one side of the electrochromic layer opposite to the first conductive layer; an ion storage layer is disposed on one side of the electrolyte layer opposite to the electrochromic layer; a second conductive layer is disposed on one side of the ion storage layer opposite to the electrolyte layer, including a substrate layer and a conductive film layer disposed on the substrate layer; a second glass substrate is disposed on one side of the second conductive layer opposite to the ion storage layer; and two electrode elements are electrically connected to the first conductive layer and the second conductive layer, respectively. The first glass substrate and the first conductive layer are respectively provided with an adhesive layer made of polyvinyl butyral (PVB) between the first glass substrate and the first conductive layer and between the second glass substrate and the second conductive layer. The electrochromic lens also includes an encapsulating material, which is coated on the outer peripheral surface of the first conductive layer, the electrochromic layer, the electrolyte layer, the ion storage layer and the second conductive layer.

2. The electrochromic lens as claimed in claim 1, wherein each of the electrode elements is a flexible printed circuit board cable, wherein one end of each electrode element is connected to one of the first conductive layer and the second conductive layer, and the other end protrudes from the encapsulation material and is exposed outward.

3. The electrochromic lens as claimed in claim 1, wherein the electrochromic layer is a solid film made of an organic polymer material, and the thickness of the electrochromic layer is between 0.5 μm and 2.0 μm.

4. The electrochromic lens as claimed in claim 1, wherein the electrolyte layer is a solid film layer and the thickness of the electrolyte layer is between 0.5 μm and 2.0 μm.

5. The electrochromic lens as claimed in claim 1, wherein the thickness of each adhesive layer is between 0.5 mm and 2.0 mm.

6. The electrochromic lens as claimed in claim 2, wherein the thicknesses of the first glass substrate and the second glass substrate are respectively between 1 mm and 2 mm, and the encapsulating adhesive is sealingly connected between the first glass substrate and the second glass substrate in the thickness direction; the electrochromic layer is a solid film layer made of an organic polymer material, and the thickness of the electrochromic layer is between 0.8 μm and 1.2 μm; the electrolyte layer is a solid film layer, and the thickness of the electrolyte layer is between 0.8 μm and 1.2 μm; the thickness of the ion storage layer is between 0.3 μm and 1 μm; each The thickness of the bonding layer is between 0.5 mm and 1.0 mm; and the substrate layer of the first conductive layer and the substrate layer of the second conductive layer are respectively polyethylene terephthalate (PET) films, the conductive film layer of the first conductive layer and the conductive film layer of the second conductive layer are respectively indium tin oxide (ITO) transparent conductive layers, the thickness of each substrate layer is between 110 μm and 150 μm, the thickness of each conductive film layer is between 80 nm and 120 nm, and the first conductive layer and the second conductive layer respectively have a resistance value between 30 Ω / sq and 60 Ω / sq.

7. A method for manufacturing an electrochromic lens, for manufacturing an electrochromic lens as described in any one of claims 1 to 6, comprising the following steps: coating an adhesive layer on one surface of a first glass substrate to adhere a first conductive layer to the first glass substrate; coating an electrochromic material on the first conductive layer and curing the electrochromic material as the electrochromic layer; coating an electrolyte material on the electrochromic layer and curing the electrolyte material as the electrolyte layer; providing an ion storage layer on the electrolyte layer; providing a second conductive layer on the ion storage layer; coating another adhesive layer between the second glass substrate and the second conductive layer for adhesion; electrically connecting two electrode elements to the first conductive layer and the second conductive layer; and coating and curing an encapsulating adhesive on the outer peripheral surfaces of the first conductive layer, the electrochromic layer, the electrolyte layer, the ion storage layer, and the second conductive layer.

8. The method for manufacturing an electrochromic lens as claimed in claim 7, wherein the electrochromic material is selected from viologen derivatives and a reactive monomer polymerized together, wherein the reactive monomer is selected from at least one of acrylates and alcohols.

9. A method for manufacturing an electrochromic lens as claimed in claim 7, wherein the electrochromic material is cured by heating at a temperature of 120°C to 140°C for 5 to 15 minutes.

10. The method for manufacturing an electrochromic lens as described in claim 7, wherein the electrochromic material and the electrolyte material are multi-coated by spin coating or screen printing.

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