Electrochromic film, electrochromic device, electrochromic glass, and vehicle

Inventors: Cancan Wang (Fuqing, CN); Jiafu Wang (Fuqing, CN); Shou Lin (Fuqing, CN); Tao Feng (Fuqing, CN)

Assignee: FUYAO GLASS INDUSTRY GROUP CO., LTD.

G02F1/155 B60J3/04

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Quick Facts

Patent No.: US 12675020
App. No.: 18/424,065
Granted: Jul 7, 2026
Kind: B2

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Abstract

An electrochromic film, an electrochromic device and a method for manufacturing the same, electrochromic glass, and a vehicle are provided. The electrochromic film includes a first transparent conductive layer, a second transparent conductive layer, and an electrochromic functional layer. Each transparent conductive layer is provided with multiple electrode sub-lines arranged at intervals on an edge of at least one side of said each transparent conductive layer. On a plane where the first transparent conductive layer or the second transparent conductive layer is located, orthographic projections of the multiple electrode sub-lines of the first transparent conductive layer have at least a non-overlapping part with orthographic projections of the multiple electrode sub-lines of the second transparent conductive layer. The electrochromic functional layer is disposed between the first transparent conductive layer and the second transparent conductive layer.

Claims (35)

1 . An electrochromic film, comprising:

a first transparent conductive layer and a second transparent conductive layer, wherein the first transparent conductive layer is provided with a plurality of electrode sub-lines arranged at intervals on an edge of at least one side of the first transparent conductive layer, the second transparent conductive layer is provided with a plurality of electrode sub-lines arranged at intervals on an edge of at least one side of the second transparent conductive layer, and on a plane where the first transparent conductive layer or the second transparent conductive layer is located, orthographic projections of the plurality of electrode sub-lines of the first transparent conductive layer have at least a non-overlapping part with orthographic projections of the plurality of electrode sub-lines of the second transparent conductive layer; and

an electrochromic functional layer disposed between the first transparent conductive layer and the second transparent conductive layer;

wherein the plurality of electrode sub-lines on the first transparent conductive layer are arranged on edges of a pair of opposite sides of the first transparent conductive layer, and the plurality of electrode sub-lines on the second transparent conductive layer are arranged on edges of a pair of opposite sides of the second transparent conductive layer; and on each of the first transparent conductive layer and the second transparent conductive layer, electrode sub-lines at the same side of the pair of opposite sides are arranged at intervals, and electrode sub-lines at one side of the pair of opposite sides and electrode sub-lines at the other side of the pair of opposite sides are arranged in a staggered manner.

2 . The electrochromic film of claim 1 , wherein the first transparent conductive layer defines a plurality of separation grooves extending through two opposite sides or two adjacent sides of the first transparent conductive layer, and an entire layer region of the first transparent conductive layer where the plurality of separation grooves are defined is separated into a plurality of conductive units by the plurality of separation grooves; the second transparent conductive layer defines a plurality of separation grooves extending through two opposite sides or two adjacent sides of the second transparent conductive layer, and an entire layer region of the second transparent conductive layer where the plurality of separation grooves are defined is separated into a plurality of conductive units by the plurality of separation grooves; and wherein each conductive unit corresponds to one electrode sub-line, and two adjacent conductive units are kept independent from each other by a separation groove.

3 . The electrochromic film of claim 2 , wherein the plurality of separation grooves in the first transparent conductive layer are substantially parallel to or intersect with each other, and the plurality of separation grooves in the second transparent conductive layer are substantially parallel to or intersect with each other.

4 . The electrochromic film of claim 1 , wherein the first transparent conductive layer is provided with a plurality of electrode sub-lines arranged on edges of a first pair of opposite sides of the first transparent conductive layer, and the second transparent conductive layer is provided with a plurality of electrode sub-lines arranged on edges of a second pair of opposite sides of the second transparent conductive layer, and orthographic projections of the second pair of opposite sides on the plane where the first transparent conductive layer is located overlap the first pair of opposite sides.

5 . The electrochromic film of claim 1 , wherein the first transparent conductive layer is provided with the plurality of electrode sub-lines arranged on edges of a first pair of opposite sides of the first transparent conductive layer, and the second transparent conductive layer is provided with the plurality of electrode sub-lines arranged on edges of a second pair of opposite sides of the second transparent conductive layer, and orthographic projections of the second pair of opposite sides on the plane where the first transparent conductive layer is located intersect with the first pair of opposite sides.

6 . The electrochromic film of claim 1 , wherein the electrode sub-lines of the first transparent conductive layer are completely disposed on a surface of the first transparent conductive layer facing towards the second transparent conductive layer, and the second transparent conductive layer is free of electrode sub-lines in regions corresponding to the orthographic projections of the plurality of electrode sub-lines of the first transparent conductive layer; and

the electrode sub-lines of the second transparent conductive layer are completely disposed on a surface of the second transparent conductive layer facing towards the first transparent conductive layer, and the first transparent conductive layer is free of electrode sub-lines in regions corresponding to the orthographic projections of the plurality of electrode sub-lines of the second transparent conductive layer.

7 . An electrochromic device, comprising:

a first substrate and a second substrate; and

an electrochromic film, comprising:

an electrochromic functional layer disposed between the first transparent conductive layer and the second transparent conductive layer;

wherein

the electrochromic film is disposed between the first substrate and the second substrate; and the first substrate faces the first transparent conductive layer, and the second substrate faces the second transparent conductive layer.

8 . The electrochromic device of claim 7 , wherein the first transparent conductive layer and the first substrate adjacent to the first transparent conductive layer constitute a stacked structure, the stacked structure defines a plurality of separation grooves each extending through two opposite sides or two adjacent sides of the first transparent conductive layer in the stacked structure, and an entire layer region of the first transparent conductive layer where the plurality of separation grooves are located are separated into a plurality of conductive units by the plurality of separation grooves; the second transparent conductive layer and the second substrate adjacent to the second transparent conductive layer constitute a stacked structure, the stacked structure defines a plurality of separation grooves each extending through two opposite sides or two adjacent sides of the second transparent conductive layer in the stacked structure, and an entire layer region of the second transparent conductive layer where the plurality of separation grooves are located are separated into a plurality of conductive units by the plurality of separation grooves; and each conductive unit corresponds to one electrode sub-line, and two adjacent conductive units are kept independent from each other.

9 . The electrochromic device of claim 8 , wherein each of the plurality of separation grooves in the stacked structure of the first transparent conductive layer and the first substrate extends in a direction from the first transparent conductive layer to the first substrate, and each of the plurality of separation grooves in the stacked structure of the first transparent conductive layer and the first substrate has a depth greater than or equal to a thickness of the first transparent conductive layer, and is less than or equal to a sum of the thickness of the first transparent conductive layer and 0.5 times a thickness of the first substrate; and each of the plurality of separation grooves in the stacked structure of the second transparent conductive layer and the second substrate extends in a direction from the second transparent conductive layer to second substrate, and each of the plurality of separation grooves in the stacked structure of the second transparent conductive layer and the second substrate has a depth greater than or equal to a thickness of the second transparent conductive layer, and is less than or equal to a sum of the thickness of the second transparent conductive layer and 0.5 times a thickness of the second substrate.

10 . The electrochromic device of claim 7 , wherein the first transparent conductive layer defines a plurality of separation grooves extending through two opposite sides or two adjacent sides of the first transparent conductive layer, and an entire layer region of the first transparent conductive layer where the plurality of separation grooves are defined is separated into a plurality of conductive units by the plurality of separation grooves; the second transparent conductive layer defines a plurality of separation grooves extending through two opposite sides or two adjacent sides of the second transparent conductive layer, and an entire layer region of the second transparent conductive layer where the plurality of separation grooves are defined is separated into a plurality of conductive units by the plurality of separation grooves; and wherein each conductive unit corresponds to one electrode sub-line, and two adjacent conductive units are kept independent from each other by a separation groove.

11 . The electrochromic device of claim 7 , wherein the first transparent conductive layer is provided with a plurality of electrode sub-lines arranged on edges of a first pair of opposite sides of the first transparent conductive layer, and the second transparent conductive layer is provided with a plurality of electrode sub-lines arranged on edges of a second pair of opposite sides of the second transparent conductive layer, and orthographic projections of the second pair of opposite sides on the plane where the first transparent conductive layer is located overlap the first pair of opposite sides.

12 . The electrochromic device of claim 7 , wherein the first transparent conductive layer is provided with the plurality of electrode sub-lines arranged on edges of a first pair of opposite sides of the first transparent conductive layer, and the second transparent conductive layer is provided with the plurality of electrode sub-lines arranged on edges of a second pair of opposite sides of the second transparent conductive layer, and orthographic projections of the second pair of opposite sides on the plane where the first transparent conductive layer is located intersects with the first pair of opposite sides.

13 . Electrochromic glass, comprising:

a first glass layer and a second glass layer; and

an electrochromic device, comprising:

a first substrate and a second substrate; and

an electrochromic film, comprising:

an electrochromic functional layer disposed between the first transparent conductive layer and the second transparent conductive layer;

wherein

the electrochromic device is disposed between the first glass layer and the second glass layer; and the first glass layer faces the first substrate, and the second glass layer faces the second substrate.

14 . A vehicle comprising the electrochromic glass of claim 13 .