CN-122018211-A - Electrochromic device, manufacturing method thereof and electronic equipment

CN122018211ACN 122018211 ACN122018211 ACN 122018211ACN-122018211-A

Abstract

The invention provides an electrochromic device, a manufacturing method thereof and electronic equipment, wherein the electrochromic device comprises an electrochromic functional layer and an integrated sealing structure which is arranged to wrap the electrochromic functional layer, a plurality of supporting parts which are arranged at intervals and extend towards the electrochromic functional layer are arranged on the inner side wall of each side edge of the sealing structure, and each supporting part is respectively contacted with the electrochromic functional layer and the top and the bottom of the sealing structure.

Inventors

TANG HAO
CHENG JIUYANG
LAN RONGHUA
WANG ZHIDONG
GUO MENG
LU YANCHENG
QU FENG
ZHOU QUANGUO
SUN XIURU

Assignees

京东方科技集团股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260317

Claims (10)

1. An electrochromic device is provided, which comprises a substrate, characterized by comprising the following steps: An electrochromic functional layer and an integrated sealing structure wrapping the electrochromic functional layer; The electrochromic display device comprises a sealing structure, wherein the inner side wall of each side edge of the sealing structure is provided with a plurality of supporting parts which extend towards the electrochromic functional layer and are arranged at intervals, and each supporting part is respectively contacted with the electrochromic functional layer and the top and the bottom of the sealing structure.
2. The electrochromic device according to claim 1, wherein said electrochromic functional layer is in contact with said top and said bottom, respectively, in a first direction, the thickness of each of said support portions being equal to the thickness of said electrochromic functional layer, said first direction being the direction in which said top is directed toward said bottom.
3. The electrochromic device according to claim 2, wherein the thickness of said side edges decreases in a second direction, said second direction being the direction in which said electrochromic functional layer points towards said support.
4. The electrochromic device according to claim 3, wherein each supporting portion is arranged at intervals along a third direction on the same side of the sealing structure, the distance between two adjacent supporting portions is 5 mm-10 mm, and the third direction is perpendicular to the first direction and the second direction respectively.
5. The electrochromic device according to claim 3, wherein in said second direction, said side edges have an extension of 2mm to 10mm and said support portions have an extension of 2mm to 10mm.
6. The electrochromic device according to claim 4, wherein the support portion has one of a rectangular, triangular, and semicircular cross-sectional shape along a plane defined parallel to the third direction and the second direction.
7. The electrochromic device according to any of claims 1-6, wherein said sealing structure and said support are of the same material as the thermally fusible flexible polymer material.
8. The electrochromic device according to claim 7, wherein said sealing structure is integrally formed with said support portion.
9. An electronic device, comprising: an electrochromic device according to any one of claims 1 to 8.
10. A method of fabricating an electrochromic device comprising: the method comprises the steps of manufacturing a first substrate and a second substrate by adopting a hot-fusible flexible high polymer material with the same material; the enclosing structure comprises a main body part which is arranged in a closed ring shape and a plurality of supporting parts which are arranged on the inner side wall of the main body part at intervals, wherein the main body part and the supporting parts are integrally formed; the enclosing structure is arranged on the surface of the first substrate, and the first substrate and the enclosing structure enclose a containing space; filling the electrochromic functional layers into the accommodating space, wherein the thickness of each supporting part is equal to the thickness of the electrochromic functional layer; disposing the second substrate on a side of the electrochromic functional layer away from the first substrate; The method comprises the steps of carrying out partition hot pressing treatment by adopting hot pressing equipment, respectively pressurizing the bottom part of the first substrate contacted with the main body part and the top part of the second substrate contacted with the main body part through a hot pressing head of the hot pressing equipment, arranging a clearance area of the hot pressing head corresponding to each supporting part, controlling the hot pressing temperature to be above the glass transition temperature of the hot-fusible flexible high polymer material, and fusing the main body part, the first substrate and the second substrate into an integrated sealing structure, wherein each supporting part is respectively contacted with the electrochromic functional layer and the top and the bottom part of the sealing structure.

Description

Electrochromic device, manufacturing method thereof and electronic equipment Technical Field The invention relates to the technical field of display, in particular to an electrochromic device, a manufacturing method thereof and electronic equipment. Background The flexible electrochromic device has wide application prospect in the aspects of intelligent vehicle windows, intelligent houses, flexible display equipment, privacy protection films and the like by virtue of the characteristics that the flexible electrochromic device can be bent and the light transmittance can be accurately regulated and controlled. The typical structure is a sandwich structure with upper and lower flexible substrates holding electrochromic functional layers. In order to prevent the volatilization of the internal electrolyte solvent and the invasion of external water and oxygen, an organic frame sealing adhesive is currently generally used for edge sealing of the electrochromic functional layer. In order to ensure the oxidation-reduction reaction efficiency and the ion transmission speed of the organic electrochromic layer in the electrochromic functional layer, a strong-polarity electrolyte solvent is usually used, but the strong-polarity electrolyte solvent is extremely easy to permeate into the organic frame sealing adhesive, so that the adhesive layer is swelled, cracked and even completely disabled, and the service life of the device is greatly shortened. As such, how to improve the edge sealing performance of electrochromic devices is an urgent technical problem to be solved. Disclosure of Invention The invention provides an electrochromic device, a manufacturing method thereof and electronic equipment, which are used for ensuring the thickness uniformity of an electrochromic layer while considering the edge sealing performance of the electrochromic device. In a first aspect, an embodiment of the present invention provides an electrochromic device, including: An electrochromic functional layer and an integrated sealing structure wrapping the electrochromic functional layer; The electrochromic display device comprises a sealing structure, wherein the inner side wall of each side edge of the sealing structure is provided with a plurality of supporting parts which extend towards the electrochromic functional layer and are arranged at intervals, and each supporting part is respectively contacted with the electrochromic functional layer and the top and the bottom of the sealing structure. In one possible implementation manner, the electrochromic functional layer is respectively contacted with the top and the bottom along a first direction, and the thickness of each supporting part is equal to that of the electrochromic functional layer, wherein the first direction is the direction that the top points to the bottom. In one possible implementation, the thickness of the side edge is reduced in a second direction, wherein the second direction is a direction in which the electrochromic functional layer points to the supporting portion. In a possible implementation manner, on the same side of the sealing structure, each supporting portion is arranged at intervals along a third direction, the distance between two adjacent supporting portions is 5 mm-10 mm, and the third direction is perpendicular to the first direction and the second direction respectively. In one possible implementation manner, along the second direction, the extending length of the side edge is 2 mm-10 mm, and the extending length of the supporting portion is 2 mm-10 mm. In one possible implementation manner, the cross-sectional shape of the supporting portion along a plane enclosed by the third direction and the second direction is one of a rectangle, a triangle, and a semicircle. In one possible implementation manner, the sealing structure and the supporting part are made of the same material as the hot-fusible flexible polymer material. In one possible implementation, the sealing structure is integrally formed with the support. In a second aspect, an embodiment of the present invention further provides an electronic device, including: An electrochromic device as claimed in any one of the preceding claims. In a third aspect, an embodiment of the present invention further provides a method for manufacturing an electrochromic device, including: the method comprises the steps of manufacturing a first substrate and a second substrate by adopting a hot-fusible flexible high polymer material with the same material; the enclosing structure comprises a main body part which is arranged in a closed ring shape and a plurality of supporting parts which are arranged on the inner side wall of the main body part at intervals, wherein the main body part and the supporting parts are integrally formed; the enclosing structure is arranged on the surface of the first substrate, and the first substrate and the enclosing structure enclose a containing space; filling the electrochromic fun