CN212675329U - Electrochromic device and display device - Google Patents
Electrochromic device and display device Download PDFInfo
- Publication number
- CN212675329U CN212675329U CN202021511575.7U CN202021511575U CN212675329U CN 212675329 U CN212675329 U CN 212675329U CN 202021511575 U CN202021511575 U CN 202021511575U CN 212675329 U CN212675329 U CN 212675329U
- Authority
- CN
- China
- Prior art keywords
- layer
- electrochromic
- electrochromic device
- pixel
- transparent conductive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses an electrochromic device and display device, this electrochromic device includes: a substrate; a plurality of landing electrodes; the light reflecting layer is positioned on the surface of one side of the lapping electrode away from the substrate; the pixel isolation layer is positioned on the surface of one side of the light reflecting layer, which is far away from the lap joint electrode, and is used for dividing the light reflecting layer into a plurality of pixel areas; each electrochromic unit is positioned in one pixel area and is electrically connected with the corresponding lapping electrode through a conductive through hole penetrating through the light reflecting layer; and the first transparent conducting layer is positioned on the surface of one side of the electrochromic unit far away from the pixel isolating layer. The embodiment of the utility model provides a technical scheme has improved electrochromic device's display image quality.
Description
Technical Field
The embodiment of the utility model provides a relate to semiconductor technology field, especially relate to an electrochromic device and display device.
Background
With the development of science and technology, electrochromic devices have the advantages of blind angle omission, high contrast, easy realization of gray scale control, convenient manufacture, wide working temperature range, low driving voltage and the like, and are applied to large-screen display devices more and more widely.
In the existing electrochromic device, ion diffusion exists between adjacent pixels, so that the situation that an electrochromic display image cannot be maintained and mixed with color is caused, and the quality of a display picture of the electrochromic device is poor.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides an electrochromic device and a display apparatus, which improve the display image quality of the electrochromic device.
In a first aspect, an embodiment of the present invention provides an electrochromic device, including:
a substrate;
a plurality of landing electrodes;
the light reflecting layer is positioned on the surface of one side of the lap joint electrode away from the substrate;
the pixel isolation layer is positioned on the surface of one side of the light reflecting layer, which is far away from the lap joint electrode, and is used for dividing the light reflecting layer into a plurality of pixel areas;
each electrochromic unit is positioned in one pixel region and is electrically connected with the corresponding lapping electrode through a conductive through hole penetrating through the light reflecting layer;
and the first transparent conducting layer is positioned on the surface of one side of the electrochromic unit, which is far away from the pixel isolating layer.
Optionally, a surface of the pixel isolation layer on a side away from the substrate and a surface of the electrochromic cell side are flush.
Optionally, a pixel defining layer is further included between the pixel isolation layer and the light reflecting layer.
Optionally, the electrochromic device further comprises an encapsulation cover plate located on the surface of the first transparent conducting layer on the side far away from the electrochromic unit.
Optionally, the display device further comprises a thin film transistor array layer located between the lapping electrode and the substrate, wherein the lapping electrode is electrically connected with the corresponding thin film transistor.
Optionally, a planarization layer is further included between the light reflecting layer and the pixel isolation layer.
Optionally, the electrochromic unit includes a second transparent conductive layer located on a surface of the light-reflecting layer on a side away from the landing electrode, and the second transparent conductive layer is electrically connected to the landing electrode through a conductive via;
the electrochromic layer is positioned on the surface of one side, away from the lapping electrode, of the second transparent conducting layer;
and the electrolyte layer is positioned on the surface of one side of the electrochromic layer, which is far away from the second transparent conducting layer.
Optionally, the electrochromic cell further comprises a charge storage layer located between the electrolyte layer and the first transparent conductive layer.
Optionally, the display device further comprises an adhesive layer located between the pixel isolation layer and the first transparent conductive layer and used for adhering the pixel isolation layer and the first transparent conductive layer.
In a second aspect, the present invention provides a display device, including the electrochromic device described in any of the first aspects.
According to the technical scheme provided by the embodiment of the invention, the pixel isolation layer divides the light reflecting layer into a plurality of pixel areas, each pixel area is internally provided with one electrochromic unit, and in the process that the electrochromic material in each electrochromic unit generates reversible redox reaction, ion diffusion cannot exist between adjacent pixels, so that the technical problem that the display image of the electrochromic device cannot be maintained and mixed is solved, and the display picture quality of the electrochromic device is improved.
Drawings
Fig. 1 is a schematic structural diagram of an electrochromic device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another electrochromic device provided in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another electrochromic device according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of another electrochromic device according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of another electrochromic device according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of another electrochromic device according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of another electrochromic device according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
As described in the above background art, there is ion diffusion between adjacent pixels in the conventional electrochromic device, which causes that the display image of the electrochromic device cannot be maintained and mixed with color, resulting in poor display image quality of the electrochromic device.
In view of the above technical problems, an embodiment of the present invention provides the following technical solutions:
fig. 1 is a schematic structural diagram of an electrochromic device according to an embodiment of the present invention. Referring to fig. 1, the electrochromic device includes: a substrate 10; a plurality of landing electrodes 20; the light reflecting layer 30 is positioned on the surface of the lapping electrode 20 at the side far away from the substrate 10; the pixel isolating layer 40A is positioned on the surface of the light reflecting layer 30 on the side far away from the lap electrode 20 and is used for dividing the light reflecting layer 30 into a plurality of pixel areas; a plurality of electrochromic units 50, wherein each electrochromic unit 50 is located in a pixel region, and the electrochromic units 50 are electrically connected with the corresponding lapping electrodes 20 through the conductive through holes 30A penetrating through the light reflecting layer 30; and a first transparent conductive layer 60 on a surface of the electrochromic element 50 on a side away from the pixel isolation layer.
Illustratively, the substrate 10 may be a transparent substrate. The specific material may be one or more of Glass (Glass), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), or Polyimide (PI). The first transparent conductive layer 60 may be formed by Physical Vapor Deposition (PVD) or solution spraying.
The pixel isolation layer 40A may be fabricated using a photolithography process. The thickness of the glue can be 5 um-20 um thick, and the selectable materials are Epoxy resin (Epoxy), polymethyl methacrylate (PMMA) and Polyimide (PI).
The first transparent conductive layer 60 and the landing electrode 20 transmit the electrical signal required by the electrochromic cell 50 to the electrochromic cell 50. The display principle of the electrochromic cell layer 50 is as follows: the electrochromic cell 50 includes an electrochromic material having good ionic and electronic conductivity, high contrast, color change efficiency, cycle time, write/erase efficiency, and other electrochromic properties. Under the action of the electrical signal provided by the first transparent conductive layer 60 and the overlapping electrode 20, the ions undergo reversible redox reaction, so that the ions can be converted between a transmission state and a reflection state for ambient light, thereby realizing color display.
Referring to fig. 1, light is incident from the first transparent conductive layer 60 side, passes through the electrochromic cell 50 and the first transparent conductive layer 60, is reflected by the light reflection layer 30, and then exits from the first transparent conductive layer 60 side to realize color display.
In the existing electrochromic device, ion diffusion exists between adjacent pixels, so that the situation that an electrochromic display image cannot be maintained and mixed with color is caused, and the quality of a display picture of the electrochromic device is poor.
According to the technical scheme provided by the embodiment of the invention, the pixel isolation layer 40A divides the light reflecting layer 30 into a plurality of pixel areas, one electrochromic unit 50 is arranged in each pixel area, and in the process that the electrochromic material in each electrochromic unit 50 is subjected to reversible redox reaction, ion diffusion cannot exist between adjacent pixels, so that the technical problem that the display image of the electrochromic device cannot be maintained and mixed with color is avoided, and the display picture quality of the electrochromic device is improved.
Alternatively, referring to fig. 1, the surface of the pixel isolation layer 40A on the side away from the substrate 10 is flush with the surface of the electrochromic cell 50.
Specifically, the surface of the side of the pixel isolation layer 40A away from the substrate 10 and the surface of the side of the electrochromic unit 50 are flush to ensure that the adjacent electrochromic units 50 are completely isolated, and in the process of reversible redox reaction of the electrochromic material in each electrochromic unit 50, ion diffusion between the adjacent pixels is ensured to be avoided, the technical problem that an electrochromic display image cannot be maintained and color mixing is avoided, and the display picture quality of the electrochromic device is improved.
In the above technical solution, the pixel isolation layer 40A is configured to divide the light-reflecting layer 30 into a plurality of pixel regions, and in order to accurately determine a specific position of each pixel isolation layer 40A, the embodiment of the present invention provides the following technical solutions:
fig. 2 is a schematic structural diagram of another electrochromic device according to an embodiment of the present invention. Referring to fig. 2, the electrochromic device further includes a pixel defining layer 40B between the pixel isolating layer 40A and the light reflecting layer 30.
Specifically, the pixel definition layer 40B is thin, the pixel definition layer 40B is used for dividing the light reflecting layer 30 into a plurality of pixel regions, and then the pixel isolation layer 40A is formed on the pixel definition layer 40B, so that the specific position of each pixel isolation layer 40A can be accurately determined, the adjacent electrochromic units 50 are completely isolated by the pixel definition layer 40B and the pixel isolation layer 40A, and in the process that the electrochromic material in each electrochromic unit 50 undergoes the reversible redox reaction, it is ensured that no ion diffusion exists between the adjacent pixels, the technical problem that the electrochromic display image cannot be maintained and mixed in color is avoided, and the display picture quality of the electrochromic device is improved.
In order to prevent water vapor from entering the electrochromic device from the first transparent conductive layer 60 side and adversely affecting the display function of the electrochromic unit 50, the embodiment of the present invention provides the following technical solutions:
fig. 3 is a schematic structural diagram of another electrochromic device according to an embodiment of the present invention. Referring to fig. 2 and 3, the electrochromic device further includes an encapsulating cover 70 on a surface of the first transparent conductive layer 60 on a side away from the electrochromic cell 50.
Specifically, the package cover plate 70 is used to protect the electrochromic device, and prevent moisture from entering the electrochromic device from the first transparent conductive layer 60 side, which may cause bad influence on the display function of the electrochromic unit 50.
In the above technical solution, under the action of an electrical signal, the electrochromic cell 50 generates a reversible redox reaction on ions, so that the ions can realize the transition between the transmissive and reflective states for ambient light, thereby realizing color display. The driving structure for supplying the electrochromic cell 50 with an electric signal will be described in detail below.
Referring to fig. 2 and 3, the electrochromic device further includes a thin film transistor array layer 80 between the landing electrode 20 and the substrate 10, the landing electrode 20 being electrically connected to the corresponding thin film transistor.
Specifically, the thin film transistor array layer 80 provides the electrochromic cell 50 with an electrical signal that undergoes a reversible redox reaction.
In order to form a subsequent film layer with good flatness on the reflective layer 30, the embodiment of the invention provides the following technical scheme:
referring to fig. 2 and 3, the electrochromic device further includes a planarization layer 90 between the light-reflecting layer 30 and the pixel isolation layer 40A.
Note that the planarization layer 90 is made of a transparent material, so that ambient light can pass through the planarization layer conveniently without affecting the display effect. Specifically, the formation of the planarization layer 90 enables the surface of the planarization layer 90 away from the light-reflecting layer 30 to have a better flatness, so that a subsequent film layer with a good flatness can be formed on the light-reflecting layer 30.
In the above technical solution, the display principle of the electrochromic cell 50 is as follows: the electrochromic cell 50 includes an electrochromic material having good ionic and electronic conductivity, high contrast, color change efficiency, cycle time, write/erase efficiency, and other electrochromic properties. Under the action of an electric signal, the ions undergo reversible redox reaction, so that the ions can realize the conversion between a transmission state and a reflection state for ambient light, and color display is realized. The specific film structure of the electrochromic device is described in detail below.
Fig. 4 is a schematic structural diagram of another electrochromic device according to an embodiment of the present invention. Fig. 5 is a schematic structural diagram of another electrochromic device according to an embodiment of the present invention.
Referring to fig. 4 and 5, the electrochromic cell 50 includes a second transparent conductive layer 51 on the surface of the reflective layer 30 away from the landing electrode 20, and a second transparent conductive layer 51 electrically connected to a landing electrode 20 through the conductive via 30A; an electrochromic layer 52 on a surface of the second transparent conductive layer 51 on a side away from the landing electrode 20; and an electrolyte layer 53 on a surface of the electrochromic layer 52 on a side away from the second transparent conductive layer 51.
For example, the material in the conductive via 30A may be the same as the material of the second transparent conductive layer 51, that is, a groove may be formed in the formation of the reflective layer 30 through an etching process, and then when the second transparent conductive layer 51 is formed, the groove is filled with the material of the second transparent conductive layer 51, so that the preparation of the conductive via 30A is completed.
Specifically, the Electrochromic Layer 52 (EC) is a core Layer of the whole Electrochromic device, is a Layer for generating a color change reaction, and generally requires that the film is in a bleached stateThere is a good spectral transmittance, while in the colored state some color change should be present to produce a modulatable absorption or reflection in the spectrum. The electrochromic layer is mainly in the form of an electrochromic film. The electrochromic layer 52 may include a metal oxide, such as MoO3、V2O5、Nb2O5、WO3、TiO2、Ir(OH)x、SrTiO3、ZrO2、La2O3、CaTiO3Sodium titanate, potassium niobate, combinations thereof, and the like. In some embodiments, the electrochromic layer 22 may also include a conductive polymer, such as poly 3,4 ethylenedioxythiophene (PEDOT), poly 2, 2' bithiophene, polypyrrole, Polyaniline (PANI), polythiophene, polyisothiophene, poly-o-aminophenol, polypyridine, polyindole, polycarbazole, polyquinone, octacyanophthalocyanine, combinations thereof, and the like. Further, in some embodiments, electrochromic layer 52 may also include materials such as viologens, anthraquinones, phenothiazines, combinations thereof, and the like.
The first Transparent conductive layer 60 (TCO) and the second Transparent conductive layer 51 are mainly used for establishing an electric field to realize a color change process. The first transparent conductive layer 60 and the second transparent conductive layer 51 include, but are not limited to, tin-doped indium oxide (ITO), zinc-doped indium oxide, aluminum-doped zinc oxide, silver nanowires, graphene, carbon nanotubes, metal mesh, and combinations thereof. The preparation method comprises solution processing method, Physical Vapor Deposition (PVD), etc.
The electrolyte layer 53 functions as an ion blocking electron transport between the electrochromic layer 52 and the first transparent conductive layer 60. It ensures the necessary ion channel for electrochromic material to change color without short circuit between electrodes. It is required that it should have high ionic conductivity and good electronic insulation property at room temperature, and have good optical transmittance and electrochemical stability in the process of transporting ions.
The electrolyte layer 53 comprises a solid electrolyte comprising at least one electrolyte salt selected from: LiTFSI and LiPF6、LiBF4、LiCIO4、LiCF3SO3、LiN(CF3SO2)2、LiSbFg、LiAsF6、LiN(CF3CF2SO2)2、(C2H5)4NBF4、(C2H5)3CH3NBF4LiI, and combinations thereof. While employing a polymer matrix (e.g., polyethylene oxide, polyvinylidene fluoride (PVDF), polymethyl methacrylate (PMMA), polyethylene oxide (PEO), Polyacrylonitrile (PAN), polyethylene nitrile, etc.) and one or more optional plasticizers (e.g., glutaronitrile, succinonitrile, adiponitrile, fumaric acid nitrile, etc.), the solid polymer electrolyte includes a polymer backbone, at least one solid plasticizer and at least one electrolyte salt. The polymer backbone may include a polar polymeric material having an average molecular weight of about 10,000 daltons or more. The polar polymeric material may have an average molecular weight of about 10,000 daltons to about 800,000,000 daltons. The polar polymeric material may be present in an amount of about 15 wt% to about 80 wt%, based on the total weight of the solid polymer electrolyte. The polar polymeric material may include one or more polar polymers, each of which may include one or more of the following: C. n, F, O, H, P, F, etc. Suitable polar polymers may include, but are not limited to, polyethylene oxide, polyvinylidene fluoride-hexafluoropropylene, polymethyl methacrylate, polyvinyl nitrile, combinations thereof, and the like.
Fig. 4 is a schematic structural diagram of another electrochromic device according to an embodiment of the present invention. Fig. 5 is a schematic structural diagram of another electrochromic device according to an embodiment of the present invention.
Referring to fig. 4 and 5, the electrochromic cell 50 further includes a charge storage layer 54 located between the electrolyte layer 53 and the first transparent conductive layer 60.
The charge storage layer 54 serves to store ions and balance charges, and requires a large ion storage capacity. The size of the ion storage capacity and the response time directly affect the performance of the device. The charge storage layer 54 is a mixed conductor of electrons and ions. The film layer is required to have a reversible redox state, transparency, high storage and ion supply capacity. Typical materials in common useIs a metal oxide material, and specifically can be vanadium (V) oxide2O5) Titanium oxide (TiOx), cobalt oxide (CoO), manganese oxide (MnO), lanthanum oxide (La)2O3) Nickel oxide (NiO), praseodymium oxide (Pr)2O3) Cerium oxide (Ce)2O3) And ternary materials composed of the above metal oxides. Broadly speaking, the material comprising the film layer may be an anodic electrochromic material, which when combined with the corresponding material in the electrochromic layer 52 may serve as the charge storage layer 54, and the combination may achieve a high light modulation ratio.
Illustratively, the charge storage layer 54 has a viscosity of 10CP to 100 CP. The preparation method can be Ink-jet printing (Ink-jet) or spraying (spray coating) process, and the thickness can be between 1um and 50 um.
Alternatively, an adhesive layer may be disposed between the pixel isolation layer 40A and the first transparent conductive layer 60, and the adhesive layer may be prepared by a solution processing method. The solution processing method is mainly an ink-jet printing method (ink-jet printing), and the material mainly comprises one or any combination of two or more of Epoxy resin (Epoxy), polymethyl methacrylate (PMMA), Polyimide (PI), polyvinylpyrrolidone (PVP) and silicone resin (polysiloxanes).
Alternatively, an adhesive layer may be disposed between the pixel isolation layer 40A and the first transparent conductive layer 60, and the adhesive layer may be prepared by a solution processing method. The solution processing method is mainly an ink-jet printing method (ink-jet printing), and the material mainly comprises one or any combination of two or more of Epoxy resin (Epoxy), polymethyl methacrylate (PMMA), Polyimide (PI), polyvinylpyrrolidone (PVP) and silicone resin (polysiloxanes).
Fig. 6 is a schematic structural diagram of another electrochromic device according to an embodiment of the present invention. Fig. 7 is a schematic structural diagram of another electrochromic device according to an embodiment of the present invention.
Optionally, referring to fig. 6 and 7, a light reflecting layer 91 may also be disposed between the first transparent conductive layer 60 and the package cover plate 70. Light may be incident from the first transparent conductive layer 60 side, pass through the electrochromic cell layer 50 and the first transparent conductive layer 60, be reflected by the light reflecting layer 30, and then exit from the first transparent conductive layer 60 side to realize color display. Light may also be incident from the substrate 10 side, pass through the electrochromic cell layer 50 and the first transparent conductive layer 60, be reflected by the light reflecting layer 91, and then exit from the substrate 10 side to realize color display.
The embodiment of the invention also provides a display device, which comprises any electrochromic device in the technical scheme, and the beneficial effects are the same as above and are not repeated.
Fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present invention. Referring to fig. 8, the display device 100 may be a mobile phone, a computer, a wearable device, a color-changing window, and the like.
The embodiment of the invention also provides a control method of the electrochromic device, which is applied to any electrochromic device in the technical scheme, and the method comprises the following steps:
and 110, when the electrochromic device is in a display state, setting the voltage difference between the second transparent conducting layer and the first transparent conducting layer as a display voltage difference, so that the electrochromic layer is in a transparent state.
And 120, when the electrochromic device is in a non-display state, setting the voltage difference between the second transparent conducting layer and the first transparent conducting layer as a non-display voltage difference, so that the electrochromic layer is in a dark state.
According to the technical scheme provided by the embodiment, the electrochromic device is controlled to be in a transparent state or a dark state through an electric signal, so that color display is realized.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. An electrochromic device, comprising:
a substrate;
a plurality of landing electrodes;
the light reflecting layer is positioned on the surface of one side of the lap joint electrode away from the substrate;
the pixel isolation layer is positioned on the surface of one side of the light reflecting layer, which is far away from the lap joint electrode, and is used for dividing the light reflecting layer into a plurality of pixel areas;
each electrochromic unit is positioned in one pixel region and is electrically connected with the corresponding lapping electrode through a conductive through hole penetrating through the light reflecting layer;
and the first transparent conducting layer is positioned on the surface of one side of the electrochromic unit, which is far away from the pixel isolating layer.
2. The electrochromic device according to claim 1, wherein a surface of a side of the pixel isolation layer remote from the substrate and a surface of a side of the electrochromic cell are flush.
3. The electrochromic device according to claim 1, further comprising a pixel defining layer located between the pixel isolation layer and the light reflecting layer.
4. The electrochromic device according to claim 1, further comprising an encapsulating cover on a surface of the first transparent conductive layer on a side remote from the electrochromic cell.
5. The electrochromic device of claim 1, further comprising a thin film transistor array layer between the landing electrodes and the substrate, the landing electrodes being electrically connected to corresponding thin film transistors.
6. The electrochromic device according to claim 1, further comprising a planarization layer between the light-reflecting layer and the pixel isolation layer.
7. The electrochromic device according to claim 1, wherein said electrochromic cell comprises a second transparent conductive layer on a surface of said light-reflecting layer on a side away from said landing electrode, one of said second transparent conductive layers being electrically connected to one of said landing electrodes through a conductive via;
the electrochromic layer is positioned on the surface of one side, away from the lapping electrode, of the second transparent conducting layer;
and the electrolyte layer is positioned on the surface of one side of the electrochromic layer, which is far away from the second transparent conducting layer.
8. The electrochromic device of claim 7, wherein the electrochromic cell further comprises a charge storage layer between the electrolyte layer and the first transparent conductive layer.
9. The electrochromic device according to claim 1, further comprising an adhesive layer between the pixel isolation layer and the first transparent conductive layer for adhering the pixel isolation layer and the first transparent conductive layer.
10. A display device comprising the electrochromic device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021511575.7U CN212675329U (en) | 2020-07-27 | 2020-07-27 | Electrochromic device and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021511575.7U CN212675329U (en) | 2020-07-27 | 2020-07-27 | Electrochromic device and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212675329U true CN212675329U (en) | 2021-03-09 |
Family
ID=74817112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021511575.7U Active CN212675329U (en) | 2020-07-27 | 2020-07-27 | Electrochromic device and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212675329U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113406835A (en) * | 2021-06-11 | 2021-09-17 | Oppo广东移动通信有限公司 | Electronic equipment, shell assembly, electrochromic device and manufacturing method thereof |
-
2020
- 2020-07-27 CN CN202021511575.7U patent/CN212675329U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113406835A (en) * | 2021-06-11 | 2021-09-17 | Oppo广东移动通信有限公司 | Electronic equipment, shell assembly, electrochromic device and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5139323B2 (en) | Electrochromic display element and manufacturing method thereof | |
| US5724176A (en) | Counterelectrode for smart window and smart window | |
| EP1812821B1 (en) | Dual light emitting and electrochromic device | |
| US8736941B2 (en) | Electrochromic display apparatus and method of manufacturing the same | |
| US9897887B2 (en) | Electrochromic device capable of preventing damage of electrode | |
| KR101720244B1 (en) | Electrochromic device | |
| US20070109218A1 (en) | Display apparatus and display element driving method | |
| EP1708016A2 (en) | Electrochromic display device and method of making such a device | |
| JP2006030820A (en) | Display device and display method | |
| CN111399300B (en) | Electrochromic film with edge protection | |
| JP2010224240A (en) | Electrochromic display element and method for manufacturing the same | |
| US8654431B2 (en) | Active matrix electrochromic device and method of manufacturing the same | |
| US11644730B2 (en) | Electrochromic device | |
| CN212675329U (en) | Electrochromic device and display device | |
| JPWO2009031422A1 (en) | Method for manufacturing electrochromic display element | |
| JP2008180999A (en) | Electrochromic element, and electrochromic device equipped with the same | |
| CN111856831A (en) | Electrochromic device, control method and display device | |
| JP2002287173A (en) | Electrochromic display element and method for manufacturing the same | |
| US20190278147A1 (en) | Method for changing states of electrochromic film | |
| CN112485950A (en) | Electrochromic device | |
| EP0618477B1 (en) | Smart window with a counterelectrode comprising porous carbon | |
| US10983408B2 (en) | Display device with electrochromic material | |
| JP2020518003A (en) | Conductive laminate and electrochromic element containing the same | |
| JP2002287172A (en) | Electrochromic display element and electrochromic display device | |
| JP5007520B2 (en) | Electrochromic device and electrochromic device using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |