Reflective device, manufacturing method for reflective device, and vehicle

Abstract

A reflective device, a method for manufacturing the reflective device, and a vehicle are disclosed. The reflective device includes a first transparent substrate, a transparent conductive layer, a second transparent substrate, a reflective layer, a sealant, and a dimming composition. The reflective layer faces the transparent conductive layer. The dimming composition is disposed between the reflective layer and the transparent conductive layer. The sealant is connected between the first and second transparent substrates and forms a cavity with the transparent conductive layer and the reflective layer. The dimming composition is disposed in the cavity. The sealant includes filler particles with a dielectric constant greater than or equal to 20. The device can improve the breakdown voltage of the electric field formed by the reflective layer and the transparent conductive layer, thereby improving the electrochemical stability of the filler particles under the action of the electric field, further improving the reflective reliability of the reflective device, and extending the service life of the reflective device.

Claims

1. A reflective device, wherein, include: The first transparent substrate includes a first surface and a second surface that are opposite to each other; A transparent conductive layer is disposed on the second surface, the thickness of the transparent conductive layer being 50 nm to 500 nm; a second transparent substrate includes a third surface and a fourth surface facing away from each other; a reflective layer is disposed on the third surface, the reflective layer facing the transparent conductive layer, the thickness of the reflective layer being 10 nm to 500 nm; a sealing colloid is connected between the first transparent substrate and the second transparent substrate, the sealing colloid, the transparent conductive layer, and the reflective layer forming a cavity; the sealing colloid includes a first sealant and a second sealant, the first sealant and the second sealant together forming the sealing colloid; the sealing colloid includes filler particles with a dielectric constant greater than or equal to 20; the filler particles are spherical in shape, the diameter of the filler particles being 30 μm to 300 μm; and a dimming composition is disposed in the cavity.

2. The reflective device as claimed in claim 1, wherein, The dielectric constant of the filler particles is between 25 and 150.

3. The reflective device as claimed in claim 2, wherein, The filler particles include one or more of lead titanate, barium titanate, lanthanum titanate, titanium oxide, and zirconium oxide.

4. The reflective device as described in any one of claims 1 to 3, wherein, The sealing colloid is hollow along its thickness direction, and its two end faces along the thickness direction are connected to the transparent conductive layer and the reflective layer, respectively.

5. The reflective device as claimed in claim 1, wherein, The filling particles can be any shape of cuboid, cube, sphere, or cylinder.

6. The reflective device as claimed in claim 1, wherein, The first transparent substrate includes one of glass, acrylic, and polyvinyl chloride, and the second transparent substrate includes one of glass, acrylic, and polyvinyl chloride. The visible light transmittance of both the first and second transparent substrates is greater than or equal to 80%.

7. The reflective device as claimed in claim 1, wherein, The transparent conductive layer includes at least one of ITO, CTO, ZnO, and InO; and / or, the visible light transmittance of the transparent conductive layer is greater than or equal to 80%.

8. The reflective device as claimed in claim 1, wherein, The reflective layer comprises one of silver, silver alloy, aluminum, aluminum alloy, chromium, and chromium alloy; and / or the reflectivity of the reflective layer is greater than or equal to 70%.

9. The reflective device as claimed in claim 8, wherein, The reflective device further includes a transition layer disposed between the reflective layer and the third surface, the transition layer comprising at least one of SiO, TiO, Nb2O5, and Al2O3.

10. The reflective device as claimed in claim 1, wherein, The reflective device also includes a first electrode sheet and a second electrode sheet, the first electrode sheet being electrically connected to the transparent conductive layer, and the second electrode sheet being electrically connected to the reflective layer.

11. The reflective device as claimed in claim 1, wherein, The transparent conductive layer has a contact area that contacts the second surface and a recessed area that is recessed away from the second surface. The recessed area surrounds the contact area and is spaced apart from the second surface. A decorative layer is disposed between the recessed area and the second surface. The reflectivity of the decorative layer is greater than or equal to 50%.

12. A method for manufacturing a reflective device, wherein, The method includes the following steps: providing a first transparent substrate, the first transparent substrate including a first surface and a second surface disposed opposite to each other, a transparent conductive layer disposed on the second surface, the thickness of the transparent conductive layer being 50 nm to 500 nm; providing a second transparent substrate, the second transparent substrate including a third surface and a fourth surface disposed opposite to each other, a reflective layer disposed on the third surface, the thickness of the reflective layer being 10 nm to 500 nm; positioning the transparent conductive layer facing the reflective layer, and spacing the transparent conductive layer from the reflective layer; and forming a sealing colloid between the first transparent substrate and the second transparent substrate, the sealing colloid, the transparent conductive layer, and the reflective layer forming a cavity, and filling the cavity with a dimming composition; the sealing colloid including a first sealant and a second sealant; the sealing colloid including filler particles with a dielectric constant greater than or equal to 20; the filler particles being spherical in shape, the diameter of the filler particles being 30 μm to 300 μm.

13. The method for manufacturing a reflective device as described in claim 12, wherein, The process of setting a reflective layer on the third surface includes: setting a transition layer on the third surface; and setting the reflective layer on the surface of the transition layer away from the second transparent substrate.

14. The method for manufacturing a reflective device as described in claim 12, wherein, The method involves forming a sealing colloid between the first transparent substrate and the second transparent substrate, the sealing colloid, the transparent conductive layer, and the reflective layer forming a cavity, and filling the cavity with the dimming composition. This includes: disposing the first sealant between the first transparent substrate and the second transparent substrate, the first sealant connecting the first transparent substrate and the second transparent substrate, and the first sealant, the transparent conductive layer, and the reflective layer forming the cavity with an opening; filling the cavity with the dimming composition through the opening; and disposing the second sealant between the first transparent substrate and the second transparent substrate to seal the opening, the second sealant connecting the first transparent substrate and the second transparent substrate.

15. A vehicle, wherein, The vehicle includes a reflective device as described in any one of claims 1 to 11.

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