US-12619117-B2 - Electrochromic dimming structure and transportation apparatus

Abstract

An electrochromic dimming structure and a transportation apparatus are provided. The electrochromic dimming structure includes a substrate, an electrochromic device and a first protective layer. The electrochromic device includes a first electrode layer, an electrochromic layer and a second electrode layer, the first electrode layer is located between the electrochromic layer and the substrate, the first electrode layer and the second electrode layer are full-layer transparent electrode layers, and at least one of the first electrode layer or the second electrode layer includes an oxide material. The electrochromic device further includes a metal electrode located at at least one of a side of the first electrode layer away from the second electrode layer or a side of the second electrode layer away from the first electrode layer, and the metal electrode is electrically connected with at least one of the first electrode layer or the second electrode layer.

Inventors

• Jiangbo Chen
• Yafei Zhang
• Ji PENG
• Fanli MENG

Assignees

• Beijing Boe Technology Development Co., Ltd.
• BOE TECHNOLOGY GROUP CO., LTD.

Dates

Publication Date

20260505

Application Date

20230228

Claims (20)

1. 1 . An electrochromic dimming structure, comprising: a substrate; an electrochromic device, located on the substrate, wherein the electrochromic device comprises a first electrode layer, an electrochromic layer and a second electrode layer which are sequentially stacked, the first electrode layer is located between the electrochromic layer and the substrate, both the first electrode layer and the second electrode layer are full-layer transparent electrode layers, and at least one of the first electrode layer or the second electrode layer comprises an oxide material; a first protective layer, covering the electrochromic device; wherein the electrochromic device further comprises a metal electrode located at at least one of a side of the first electrode layer away from the second electrode layer or a side of the second electrode layer away from the first electrode layer, and the metal electrode is electrically connected with at least one of the first electrode layer or the second electrode layer, and the second electrode layer comprises a first film layer, a second film layer and a third film layer which are stacked, a material of the first film layer is the same as a material of the third film layer, a thickness ratio of the first film layer to the third film layer is in a range of 0.9-1.1, and a thickness of the second film layer is less than a thickness of the first film layer.
2. 2 . The electrochromic dimming structure according to claim 1 , wherein the metal electrode comprises at least one of a metal grid electrode or a metal thin layer, and a thickness of the metal thin layer is in a range of 1-20 nanometers; and the metal electrode overlaps with the electrochromic layer in a direction perpendicular to the substrate.
3. 3 . The electrochromic dimming structure according to claim 2 , further comprising: an antenna structure, disposed in the same layer as and separated from at least part of the metal electrode.
4. 4 . The electrochromic dimming structure according to claim 3 , wherein the metal electrode comprises a first metal electrode and a second metal electrode, the first metal electrode is located at the side of the first electrode layer away from the second electrode layer and is electrically connected with the first electrode layer, and the second metal electrode is located at the side of the second electrode layer away from the first electrode layer and is electrically connected with the second electrode layer; the antenna structure is disposed in the same layer as the first metal electrode, and a thickness of the antenna structure is greater than a thickness of the second metal electrode.
5. 5 . The electrochromic dimming structure according to claim 4 , wherein the first metal electrode comprises a first metal grid electrode or a first metal thin layer, and the second metal electrode comprises a second metal thin layer.
6. 6 . The electrochromic dimming structure according to claim 3 , wherein the metal grid electrode comprises a first metal grid electrode and a second metal grid electrode, the first metal grid electrode is located at the side of the first electrode layer away from the second electrode layer and is electrically connected with the first electrode layer, and the second metal grid electrode is located at the side of the second electrode layer away from the first electrode layer and is electrically connected with the second electrode layer; an overlapping ratio of an orthographic projection of the first metal grid electrode on the substrate to an orthographic projection of the second metal grid electrode on the substrate is greater than 90%; and the antenna structure is disposed in the same layer as one of the first metal grid electrode and the second metal grid electrode.
7. 7 . The electrochromic dimming structure according to claim 3 , wherein at least 90% of an orthographic projection of the first electrode layer on the substrate overlaps with an orthographic projection of the metal thin layer on the substrate; the metal thin layer comprises a first metal thin layer and a second metal thin layer, the first metal thin layer is located at the side of the first electrode layer away from the second electrode layer and is electrically connected with the first electrode layer, and the second metal thin layer is located at the side of the second electrode layer away from the first electrode layer and is electrically connected with the second electrode layer; and the antenna structure is disposed in the same layer as one of the first metal thin layer and the second metal thin layer.
8. 8 . The electrochromic dimming structure according to claim 3 , wherein the antenna structure comprises a solid structure, and the antenna structure does not overlap with the electrochromic layer in the direction perpendicular to the substrate.
9. 9 . The electrochromic dimming structure according to claim 5 , wherein the antenna structure comprises a grid structure, and the antenna structure overlaps or does not overlap with the electrochromic layer in the direction perpendicular to the substrate.
10. 10 . The electrochromic dimming structure according to claim 3 , wherein the antenna structure comprises a main body portion, a shape of the main body portion is an octagon, and an included angle between at least two adjacent sides of the octagon is 135 degrees.
11. 11 . The electrochromic dimming structure according to claim 9 , wherein the antenna structure comprises a main body portion, the main body portion comprises the grid structure, the grid structure comprises a first strip portion extending along a first direction and a second strip portion extending along a second direction, and the first direction intersects with the second direction.
12. 12 . The electrochromic dimming structure according to claim 9 , wherein the antenna structure comprises a main body portion, the main body portion comprises the grid structure, and the grid structure comprises a plurality of strip portions radially arranged starting from a point in a central region of the main body portion.
13. 13 . The electrochromic dimming structure according to claim 1 , wherein a thickness of an electrode layer electrically connected with the metal electrode in the first electrode layer and the second electrode layer is in a range of 10 nm to 10 microns.
14. 14 . The electrochromic dimming structure according to claim 2 , wherein a thickness of the metal grid electrode is in a range of 100-5000 nanometers, and a line width of the metal grid electrode is in a range of 1-5 microns.
15. 15 . The electrochromic dimming structure according to claim 6 , further comprising: a second protective layer, covering the second electrode layer; wherein at least part of the second metal grid electrode and the antenna structure are located at one side of the second protective layer away from the substrate, the second protective layer comprises a groove configured to expose the second electrode layer, and the second metal grid electrode is electrically connected with the second electrode layer through the groove; an electrode portion is further disposed at one side of the second protective layer away from the second electrode layer, and the electrode portion is electrically connected with the second metal grid electrode; and the first protective layer covers the second metal grid electrode and the antenna structure.
16. 16 . The electrochromic dimming structure according to claim 6 , wherein the antenna structure is disposed in the same layer as the first metal grid electrode, and the first protective layer covers the antenna structure; the first metal grid electrode comprises two metal layers, and a material of the antenna structure is the same as a material of one metal layer away from the substrate in the two metal layers.
17. 17 . The electrochromic dimming structure according to claim 1 , wherein the electrochromic layer comprises an electrochromic material layer, an electrolyte layer and a storage layer which are sequentially stacked, and the electrochromic material layer is located between the electrolyte layer and the first electrode layer.
18. 18 . The electrochromic dimming structure according to claim 17 , wherein the electrochromic material layer comprises one of an inorganic electrochromic material and an organic electrochromic material, and the electrolyte layer comprises one of a solid electrolyte and a liquid electrolyte.
19. 19 . A transportation apparatus, comprising a sunroof, wherein the sunroof comprises the electrochromic dimming structure according to claim 1 .
20. 20 . An electrochromic dimming structure, comprising: a substrate; an electrochromic device, located on the substrate, wherein the electrochromic device comprises a first electrode layer, an electrochromic layer and a second electrode layer which are sequentially stacked, the first electrode layer is located between the electrochromic layer and the substrate, both the first electrode layer and the second electrode layer are full-layer transparent electrode layers, and at least one of the first electrode layer or the second electrode layer comprises an oxide material; a first protective layer, covering the electrochromic device; wherein the electrochromic device further comprises a metal electrode located at at least one of a side of the first electrode layer away from the second electrode layer or a side of the second electrode layer away from the first electrode layer, and the metal electrode is electrically connected with at least one of the first electrode layer or the second electrode layer; the electrochromic dimming structure further comprises an antenna structure, the metal electrode comprises a metal grid electrode, and the metal electrode overlaps with the electrochromic layer in a direction perpendicular to the substrate; the metal grid electrode comprises a first metal grid electrode and a second metal grid electrode, the first metal grid electrode is located at the side of the first electrode layer away from the second electrode layer and is electrically connected with the first electrode layer, and the second metal grid electrode is located at the side of the second electrode layer away from the first electrode layer and is electrically connected with the second electrode layer; an overlapping ratio of an orthographic projection of the first metal grid electrode on the substrate to an orthographic projection of the second metal grid electrode on the substrate is greater than 90%; and the antenna structure is disposed in the same layer as one of the first metal grid electrode and the second metal grid electrode.

Description

CROSS-REFERENCE TO RELATED PATENT APPLICATIONS This application is a U.S. National Stage Application under 35 U.S.C. § 371 of International Patent Application No. PCT/CN2023/078832, filed Feb. 28, 2023, which is incorporated by reference in its entirety. TECHNICAL FIELD Embodiments of the present disclosure relate to an electrochromic dimming structure and a transportation apparatus. BACKGROUND At present, electrochromic glass is widely used in fields, such as automotive glass, aviation glass, and building materials, etc. Electrochromism is a phenomenon that the optical properties of materials (such as reflectivity, transmittance, absorptivity, etc.) change stably and reversibly under the action of an external electric field, which is manifested as reversible changes in color and transparency in appearance. Materials with electrochromic properties are called electrochromic materials, and devices made of electrochromic materials are called electrochromic devices. SUMMARY Embodiments of the present disclosure relates to an electrochromic dimming structure and a transportation apparatus. The electrochromic dimming structure includes: a substrate, an electrochromic device and a first protective layer. The electrochromic device is located on the substrate, the electrochromic device includes a first electrode layer, an electrochromic layer and a second electrode layer which are sequentially stacked, the first electrode layer is located between the electrochromic layer and the substrate, both the first electrode layer and the second electrode layer are full-layer transparent electrode layers, and at least one of the first electrode layer or the second electrode layer includes an oxide material; the first protective layer covers the electrochromic device; The electrochromic device further includes a metal electrode located at at least one of a side of the first electrode layer away from the second electrode layer or a side of the second electrode layer away from the first electrode layer, and the metal electrode is electrically connected with at least one of the first electrode layer or the second electrode layer. For example, according to an embodiment of the present disclosure, the metal electrode includes at least one of a metal grid electrode or a metal thin layer, and a thickness of the metal thin layer is in a range of 1-20 nanometers; and the metal electrode overlaps with the electrochromic layer in a direction perpendicular to the substrate. For example, according to an embodiment of the present disclosure, the electrochromic dimming structure further includes: an antenna structure, disposed in the same layer as and separated from at least part of the metal electrode. For example, according to an embodiment of the present disclosure, the metal electrode includes a first metal electrode and a second metal electrode, the first metal electrode is located at the side of the first electrode layer away from the second electrode layer and is electrically connected with the first electrode layer, and the second metal electrode is located at the side of the second electrode layer away from the first electrode layer and is electrically connected with the second electrode layer; the antenna structure is disposed in the same layer as the first metal electrode, and a thickness of the antenna structure is greater than a thickness of the second metal electrode. For example, according to an embodiment of the present disclosure, the first metal electrode includes a first metal grid electrode or a first metal thin layer, and the second metal electrode includes a second metal thin layer. For example, according to an embodiment of the present disclosure, the metal grid electrode includes a first metal grid electrode and a second metal grid electrode, the first metal grid electrode is located at the side of the first electrode layer away from the second electrode layer and is electrically connected with the first electrode layer, and the second metal grid electrode is located at the side of the second electrode layer away from the first electrode layer and is electrically connected with the second electrode layer; an overlapping ratio of an orthographic projection of the first metal grid electrode on the substrate to an orthographic projection of the second metal grid electrode on the substrate is greater than 90%; and the antenna structure is disposed in the same layer as one of the first metal grid electrode and the second metal grid electrode. For example, according to an embodiment of the present disclosure, at least 90% of an orthographic projection of the first electrode layer on the substrate overlaps with an orthographic projection of the metal thin layer on the substrate; the metal thin layer includes a first metal thin layer and a second metal thin layer, the first metal thin layer is located at the side of the first electrode layer away from the second electrode layer and is electrically connected with the first elec