CN117452734A - Electrochromic film, camera module and electronic equipment - Google Patents
Electrochromic film, camera module and electronic equipment Download PDFInfo
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- CN117452734A CN117452734A CN202311806127.8A CN202311806127A CN117452734A CN 117452734 A CN117452734 A CN 117452734A CN 202311806127 A CN202311806127 A CN 202311806127A CN 117452734 A CN117452734 A CN 117452734A
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- 238000007254 oxidation reaction Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims description 21
- 238000006722 reduction reaction Methods 0.000 claims description 12
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 claims description 6
- 238000007747 plating Methods 0.000 claims description 6
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 229910001930 tungsten oxide Inorganic materials 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims 2
- 238000003384 imaging method Methods 0.000 claims 1
- 230000008569 process Effects 0.000 description 19
- 229910052751 metal Inorganic materials 0.000 description 13
- 239000002184 metal Substances 0.000 description 13
- 238000005192 partition Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000000151 deposition Methods 0.000 description 5
- 238000005530 etching Methods 0.000 description 5
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- GKWLILHTTGWKLQ-UHFFFAOYSA-N 2,3-dihydrothieno[3,4-b][1,4]dioxine Chemical compound O1CCOC2=CSC=C21 GKWLILHTTGWKLQ-UHFFFAOYSA-N 0.000 description 2
- 238000000231 atomic layer deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000004528 spin coating Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 208000008918 voyeurism Diseases 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect
- G02F1/153—Constructional details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
The invention discloses an electrochromic film, a camera module and electronic equipment, wherein the electrochromic film comprises a base film layer, a first conductive layer, an electrochromic layer and a second conductive layer which are sequentially stacked; the second conductive layer is arranged towards the image pick-up unit, and is electrically connected with the circuit structure of the image pick-up unit to form an electrode of the electrochromic film, so that the structures such as leads are reduced, and the whole structure is more compact; the base film layer is arranged on one side of the second conductive layer far away from the camera unit; the electrochromic layer comprises an electrochromic outer layer and an electrochromic inner layer which is arranged opposite to the photosensitive structure of the camera unit, and the electrochromic outer layer is arranged around the electrochromic inner layer; when the electrochromic inner layer is in an oxidation reaction state, the electrochromic inner layer is used for shielding the camera unit. The scheme utilizes the electrochromic film to protect the image pickup unit, effectively prevents information leakage, and has a size far smaller than that of a conventional mechanical structure, so that the electronic equipment is smaller in size. Therefore, the scheme has the advantages of small size and high information security.
Description
Technical Field
The invention relates to the technical field of electronic equipment, in particular to an electrochromic film, a camera module and electronic equipment.
Background
Privacy security of cameras is a major concern, and the phenomenon of stealing control rights of cameras through illegal ways and peeping with the control rights is sometimes occurred. In this regard, many structures using physical covering, such as lifting and lowering a camera by using a lifting structure, covering the camera by using a detachable housing, etc., have been proposed by those skilled in the art, and it is apparent that the above structures generally require additional space to place mechanical structures, resulting in larger size of electronic devices, which do not satisfy the pursuit of light and thin electronic devices. Therefore, it is necessary to design a new peep-proof structure, which can improve the information security of the camera module with a smaller size.
Disclosure of Invention
The invention aims to provide an electrochromic film, a camera module and electronic equipment, which solve the technical problems that the current peep-proof structure cannot simultaneously solve the problems of oversized size and insufficient information safety.
To achieve the purpose, the invention adopts the following technical scheme:
an electrochromic film comprises a base film layer, a first conductive layer, an electrochromic layer and a second conductive layer which are sequentially stacked;
the second conductive layer is arranged towards the image pick-up unit, and is in contact with and electrically connected with the conductive column protruding from the surface of the image pick-up unit; the base film layer is arranged on one side of the second conductive layer far away from the image pickup unit;
the electrochromic layer comprises an electrochromic outer layer and an electrochromic inner layer, and the electrochromic inner layer is arranged opposite to the photosensitive structure of the camera unit; the electrochromic outer layer is disposed around the electrochromic inner layer;
and when the electrochromic inner layer is in an oxidation reaction state, the electrochromic inner layer is used for shielding the camera unit.
Optionally, one of the electrochromic outer layer and the electrochromic inner layer is in a reduction reaction state and the other is in an oxidation reaction state.
Optionally, the first conductive layer includes a first conductive outer layer and a first conductive inner layer disposed on the base film layer; the second conductive layer comprises a second conductive outer layer and a second conductive inner layer which are arranged on the electrochromic layer;
the electrochromic outer layer is electrically connected with the first conductive outer layer and the second conductive outer layer respectively, and the electrochromic inner layer is electrically connected with the first conductive inner layer and the second conductive inner layer respectively.
Optionally, a first electrical connection channel is formed between the second conductive layer and the first conductive layer, and the first electrical connection channel includes a first insulating portion and a first conducting portion; the first insulating part penetrates through the second conductive outer layer and the electrochromic outer layer; the first conducting part penetrates through the first conductive outer layer;
and a second electric connection channel is further formed on the second conductive layer, and the first electric connection channel and the second electric connection channel can be inserted by the conductive column.
Optionally, the second conductive inner layer is electrically connected with a contact on the surface of the image capturing unit;
a first separation part is arranged between the first conductive outer layer and the first conductive inner layer, the first separation part comprises a first annular part and a lead-out part, and the first conductive inner layer comprises a first conductive main body positioned in the first annular part and a first conductive lead part positioned in the lead-out part.
Optionally, the electrochromic outer layer is a PEDOT layer, and the electrochromic inner layer is a tungsten oxide layer.
Optionally, the electrochromic outer layer is integrally formed with the electrochromic inner layer;
the electrochromic outer layer and the electrochromic inner layer are simultaneously in a reduction reaction state or simultaneously in an oxidation reaction state.
A method of preparing an electrochromic film comprising:
providing a base film layer;
plating a first conductive layer on the base film layer;
forming an electrochromic layer on the first conductive layer;
and a second conductive layer is plated on the electrochromic layer, and the second conductive layer can be contacted with and electrically connected with the conductive column of the camera unit.
The camera module comprises a camera unit, wherein the electrochromic film is arranged outside a photosensitive structure of the camera unit, or the electrochromic film prepared by the preparation method is arranged outside the photosensitive structure of the camera unit.
An electronic device comprises a camera module as described above.
Compared with the prior art, the invention has the following beneficial effects:
according to the electrochromic film, the camera module and the electronic equipment, the electrochromic film is arranged in front of the camera unit, and the electrochromic film is divided into the electrochromic outer layer and the electrochromic inner layer, and the electrochromic inner layer and the photosensitive structure are arranged oppositely, so that the electrochromic inner layer is in an oxidation reaction state, namely in a non-transparent state after voltage is applied to the electrochromic inner layer, and the camera unit is shielded. In the process, the second conductive layer is directly contacted with the conductive column to form an electrode of the electrochromic film, so that the structures such as a lead wire are reduced, and the overall size of the camera module is more compact; that is, the present invention protects the image pickup unit by using the electrochromic film, can effectively prevent information leakage, and has a size much smaller than that of a conventional mechanical structure, so that the electronic device is smaller in size. Therefore, the electronic equipment provided with the image pickup unit has the advantages of small size and high information security.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure, and are not intended to limit the scope of the invention, since any modification, variation in proportions, or adjustment of the size, etc. of the structures, proportions, etc. should be considered as falling within the spirit and scope of the invention, without affecting the effect or achievement of the objective.
FIG. 1 is a schematic view of a first process configuration of an electrochromic film according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a second process configuration of an electrochromic film according to an embodiment of the present invention;
FIG. 3 is a schematic view of a third process configuration of an electrochromic film according to an embodiment of the present invention;
FIG. 4 is a schematic view of a fourth process configuration of an electrochromic film according to an embodiment of the present invention;
FIG. 5 is a schematic view of a fifth process configuration of an electrochromic film according to an embodiment of the present invention;
FIG. 6 is a schematic view of a sixth process configuration of an electrochromic film according to an embodiment of the present invention;
FIG. 7 is a schematic view of a seventh process configuration of an electrochromic film according to an embodiment of the present invention;
FIG. 8 is a schematic view of an eighth process configuration of an electrochromic film according to an embodiment of the present invention;
fig. 9 is a schematic view of a first cross-sectional structure of an electrochromic film according to an embodiment of the present invention;
fig. 10 is a schematic view of a second cross-sectional structure of an electrochromic film according to an embodiment of the present invention;
FIG. 11 is a schematic view showing a third cross-sectional structure of an electrochromic film according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of an image capturing module according to an embodiment of the present invention.
Illustration of: 10. a base film layer;
20. a first conductive layer; 21. a first conductive outer layer; 211. a first mounting groove; 22. a first conductive inner layer; 221. a first conductive body; 222. a first conductive lead portion;
30. an electrochromic layer; 31. an electrochromic outer layer; 32. an electrochromic inner layer;
40. a second conductive layer; 41. a second conductive outer layer; 411. a third mounting groove; 42. a second conductive inner layer; 43. a first electrical connection channel; 431. a first insulating portion; 432. a first conduction part; 44. a second electrical connection path;
51. a first partition; 511. a first ring portion; 512. a lead-out part; 52. a second partition;
60. an image pickup unit; 70. a conductive post; 71. a first column portion; 72. a second column section; 80. and (5) rubber nails.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, the technical solutions in the embodiments of the present invention are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. It is noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1 to 12, fig. 1 is a schematic view of a first process structure of an electrochromic film according to an embodiment of the present invention, fig. 2 is a schematic view of a second process structure of an electrochromic film according to an embodiment of the present invention, fig. 3 is a schematic view of a third process structure of an electrochromic film according to an embodiment of the present invention, fig. 4 is a schematic view of a fourth process structure of an electrochromic film according to an embodiment of the present invention, fig. 5 is a schematic view of a fifth process structure of an electrochromic film according to an embodiment of the present invention, fig. 6 is a schematic view of a sixth process structure of an electrochromic film according to an embodiment of the present invention, fig. 7 is a schematic view of a seventh process structure of an electrochromic film according to an embodiment of the present invention, fig. 8 is a schematic view of an eighth process structure of an electrochromic film according to an embodiment of the present invention, fig. 9 is a schematic view of a first cross-sectional structure of an electrochromic film according to an embodiment of the present invention, fig. 10 is a second structure of an electrochromic film according to an embodiment of the present invention, fig. 11 is a schematic view of a third structure of an electrochromic film according to an embodiment of the present invention, and fig. 12 is a schematic view of a cross-sectional view of an image pickup device.
Examples
The electrochromic film provided by the embodiment is applied to the camera module, plays a role in protecting user information safety, is different from a conventional mechanical structure for covering the camera module, or is simply arranged in front of the camera module, and the structure of the electrochromic film is optimized in the embodiment, so that the occupied space is smaller when the electrochromic film is applied to the camera module, and the requirements of people on lightening and thinning of electronic equipment are met.
As shown in fig. 9 and 10, the electrochromic film in the present embodiment includes a base film layer 10, a first conductive layer 20, an electrochromic layer 30, and a second conductive layer 40 stacked in this order; wherein the electrochromic layer 30 refers to a material capable of changing color and light transmittance under the action of voltage; the first conductive layer 20 and the second conductive layer 40 are respectively used as pole pieces of the electrochromic layer 30, when a positive voltage is applied to the electrochromic layer 30, the electrochromic layer 30 loses electrons and undergoes oxidation reaction, namely, is in an oxidation state, and the color is deepened continuously; in contrast, when a negative voltage is applied to the electrochromic layer 30, the electrochromic layer 30 is equivalent to obtaining electrons, and undergoes a reduction reaction, i.e., is in a reduced state, at which time the color becomes continuously lighter until it becomes transparent.
The second conductive layer 40 is disposed towards the image capturing unit 60, and the second conductive layer 40 is in contact with and electrically connected to the conductive posts 70 protruding from the surface of the image capturing unit 60; the base film layer 10 is disposed on a side of the second conductive layer 40 away from the image capturing unit 60; wherein, unlike the technical scheme that the electrochromic film is simply and directly arranged in front of the image capturing unit 60, the second conductive layer 40 is equivalent to the adhesion between the electrochromic film and the surface of the image capturing unit 60, for the image capturing module, the space occupied by the electrochromic film is reduced, and for the electrochromic film, the electrochromic film is directly adhered to the image capturing unit 60, the base film on the other side is omitted, so that the thickness is reduced; the arrangement is favorable for further thinning and lightening of the electronic equipment. The electrochromic layer 30 includes an electrochromic outer layer 31 and an electrochromic inner layer 32, the electrochromic inner layer 32 being disposed opposite to the photosensitive structure of the image pickup unit 60; the electrochromic outer layer 31 is disposed around the electrochromic inner layer 32; when the electrochromic inner layer 32 is in the oxidation reaction state, it is in a darkened state, and is used for shielding the image capturing unit 60.
Specifically, the electrochromic film is mounted in front of the image capturing unit 60, and the electrochromic film is divided into the electrochromic outer layer 31 and the electrochromic inner layer 32, and the electrochromic inner layer 32 is disposed opposite to the photosensitive structure, so that the electrochromic inner layer 32 is in an oxidation reaction state, i.e., in a non-transparent state, after the voltage is applied to the electrochromic inner layer 32, and the effect of shielding the image capturing unit 60 is achieved. In the above process, the second conductive layer 40 directly contacts with the conductive post 70 to form an electrode of the electrochromic film, which reduces the structures such as leads, so that the overall size of the camera module is more compact; that is, the present embodiment protects the image capturing unit 60 with the electrochromic film, which can effectively prevent information leakage, and has a size much smaller than that of a conventional mechanical structure, so that the electronic device is smaller in size, and thus the electronic device configuring the image capturing unit 60 has the advantages of small size and high information security.
As an alternative embodiment, the electrochromic outer layer 31 and the electrochromic inner layer 32 are integrally formed, that is, the electrochromic outer layer 31 and the electrochromic inner layer 32 are formed by the same material and are jointly powered by the first conductive layer 20 and the second conductive layer 40; the electrochromic outer layer 31 and the electrochromic inner layer 32 are simultaneously in a reduction reaction state or simultaneously in an oxidation reaction state.
As another alternative embodiment, one of the electrochromic outer layer 31 and the electrochromic inner layer 32 is in a reduction reaction state and the other is in an oxidation reaction state. At this time, the first conductive layer 20 and the second conductive layer 40 together provide the first voltage to the electrochromic outer layer 31, and the first conductive layer 20 and the second conductive layer 40 together provide the second voltage to the electrochromic inner layer 32, wherein the first voltage and the second voltage are independent.
Specifically, the first conductive layer 20 includes a first conductive outer layer 21 and a first conductive inner layer 22 disposed on the base film layer 10; the second conductive layer 40 includes a second conductive outer layer 41 and a second conductive inner layer 42 disposed on the electrochromic layer 30; the electrochromic outer layer 31 is electrically connected to the first conductive outer layer 21 and the second conductive outer layer 41, respectively, and the electrochromic inner layer 32 is electrically connected to the first conductive inner layer 22 and the second conductive inner layer 42, respectively. Namely, the second conductive outer layer 41 and the first conductive outer layer 21 supply voltage to the electrochromic outer layer 31, and the second conductive inner layer 42 and the first conductive inner layer 22 supply voltage to the electrochromic inner layer 32.
It should be added that, at this time, the electrochromic outer layer 31 and the electrochromic inner layer 32 may be made of different materials, for example, the electrochromic outer layer 31 may be a PEDOT layer (polymer of Poly (3, 4-ethylenedioxythiophene) and EDOT (3, 4-ethylenedioxythiophene monomer)) which is red in the oxidized state, and the electrochromic inner layer 32 may be a tungsten oxide layer which is blue in the oxidized state; the blue electrochromic inner layer 32 can have a better shielding effect, and when the electrochromic inner layer 32 is transparent, the electrochromic outer layer 31 is red, so that a user can be obviously reminded of starting the camera. Therefore, through the arrangement, one of the electrochromic outer layer 31 and the electrochromic inner layer 32 is in a reduction reaction state, and the other is in an oxidation reaction state, so that the peep-proof effect can be achieved, the user is effectively reminded that the camera module is in a working state, and the safety is further improved.
Further, a first electrical connection channel 43 is formed between the second conductive layer 40 and the first conductive layer 20, the first electrical connection channel 43 including a first insulating portion 431 and a first conductive portion 432; the first insulating portion 431 is penetrated through the second conductive outer layer 41 and the electrochromic outer layer 31; the first conductive portion 432 penetrates the first conductive outer layer 21. The first electrical connection channel 43 has a hole shape so that the first pillar portion 71 of the surface of the image pickup unit 60 can be inserted into the first electrical connection channel 43 to be electrically connected with the second conductive outer layer 41. The second conductive layer 40 is further provided with a second electrical connection channel 44, so that the second post 72 on the surface of the image capturing unit 60 can be inserted into the second electrical connection channel 44 to be electrically connected with the second conductive outer layer 41.
It should be emphasized that the first column portion 71 and the second column portion 72 shunt the voltage from the circuit board of the image capturing unit 60, so that when the image capturing unit 60 is started, a positive voltage may be necessarily applied to the electrochromic outer layer 31 through the first column portion 71 and the second column portion 72, so that the electrochromic outer layer 31 is in an oxidation reaction, and the user is prompted that the image capturing unit 60 is in a working state; the key point of this embodiment is that the electrochromic outer layer 31 can have a one-to-one relationship with the operating voltage of the image capturing unit 60, that is, when the image capturing unit 60 is operated, the electrochromic outer layer 31 is in an oxidation reaction, that is, when the image capturing unit 60 is not operated, the electrochromic outer layer 31 is in a reduction reaction, and the specific circuit structure is not limited, for example, a conventional circuit structure such as a bistable trigger circuit may be adopted.
It can be seen that the first electrical connection channel 43 and the second electrical connection channel 44 can be inserted by the conductive post 70; at this time, the second conductive layer 40 is adhered to the surface of the image capturing unit 60, or has a very small distance from the surface of the image capturing unit 60, so that the structure is more compact on the premise of ensuring information security.
Further, the second conductive inner layer 42 is electrically connected to a contact (not shown) on the surface of the image pickup unit 60; as shown in fig. 11, a first partition portion 51 is provided between the first conductive outer layer 21 and the first conductive inner layer 22, the first partition portion 51 including a first ring portion 511 and a lead-out portion 512, the first conductive inner layer 22 including a first conductive body 221 in the first ring portion 511 and a first conductive lead portion 222 in the lead-out portion 512; namely, the second conductive inner layer 42 is electrically connected with the circuit board of the image capturing unit 60 through a contact, and the first conductive lead part 222 is electrically connected with the circuit board of the image capturing unit 60 through a wire, so that the voltage control of the circuit board of the image capturing unit 60 on the electrochromic inner layer 32 is realized; specifically, the electrochromic inner layer 32 can have a one-to-one relationship with the operating voltage of the image capturing unit 60, that is, when the image capturing unit 60 is operated, the electrochromic outer layer 31 is in a reduction reaction, that is, in a transparent state, that is, when the image capturing unit 60 is not operated, the electrochromic outer layer 31 is in a reduction reaction, that is, in a non-transparent state. Additionally, as an alternative embodiment, a third connection channel may be formed between the second conductive layer 40 and the first conductive layer 20, and the third connection channel may be configured similarly to enable the conductive post 70 to extend into the third connection channel to electrically connect with the first conductive inner layer 22.
On the basis of the above embodiment, the first conductive outer layer 21 and the first conductive inner layer 22 are separated by the first separator 51, and the second conductive outer layer 41 and the second conductive inner layer 42 are separated by the second separator 52; the separation parts are all molded by adopting insulating materials.
In summary, the electrochromic film provided in the embodiment has the advantages of high information security, small size, and the like.
Examples
The preparation method of the electrochromic film provided in the present embodiment is used for manufacturing the electrochromic film in the first embodiment, and specifically includes:
s11, providing a base film layer 10;
s12, plating a first conductive layer 20 on the base film layer 10;
s13, forming an electrochromic layer 30 on the first conductive layer 20;
s14, plating a second conductive layer 40 on the electrochromic layer 30, where the second conductive layer 40 can contact and electrically connect with the conductive post 70 of the image capturing unit 60.
Next, taking a preferred electrochromic film in this embodiment as an example, a manufacturing method is described, the electrochromic film including a base film layer 10, a first conductive layer 20, an electrochromic layer 30, and a second conductive layer 40; one of the electrochromic outer layer 31 and the electrochromic inner layer 32 is in a reduction reaction state, and the other is in an oxidation reaction state; the electrochromic outer layer 31 may be a PEDOT layer and the electrochromic inner layer 32 may be a tungsten oxide layer with an insulating layer therebetween.
A first electrical connection channel 43 is formed between the second conductive layer 40 and the first conductive layer 20, the first electrical connection channel 43 including a first insulating portion 431 and a first conductive portion 432; the first insulating portion 431 is penetrated through the second conductive outer layer 41 and the electrochromic outer layer 31; the first conductive portion 432 penetrates the first conductive outer layer 21. The first electrical connection channel 43 is in a hole shape so that the first column portion 71 of the surface of the image pickup unit 60 can be inserted into the first electrical connection channel 43; the second conductive layer 40 is further provided with a second electrical connection channel 44, so that the second post 72 on the surface of the image capturing unit 60 can be inserted into the second electrical connection channel 44 to be electrically connected with the second conductive outer layer 41.
The second conductive inner layer 42 is electrically connected with the contact on the surface of the image capturing unit 60, a first partition portion 51 is provided between the first conductive outer layer 21 and the first conductive inner layer 22, the first partition portion 51 includes a first ring portion 511 and a lead-out portion 512, and the first conductive inner layer 22 includes a first conductive body 221 located in the first ring portion 511 and a first conductive lead portion 222 located in the lead-out portion 512; that is, the second conductive inner layer 42 is electrically connected to the circuit board of the image pickup unit 60 through contacts, and the first conductive lead portion 222 is electrically connected to the circuit board of the image pickup unit 60 through wires.
The preparation method comprises the following steps:
s201, providing a base film layer 10, and depositing a first metal layer on the base film layer 10; as shown in fig. 1, the first metal layer corresponds to the first conductive outer layer 21; the specific deposition means can be physical vapor deposition, chemical vapor deposition and the like, and the subsequent deposition is also formed by adopting similar means;
s202, etching the first metal layer to form a first mounting groove 211; as shown in fig. 2 and 11, the first mounting groove 211 is etched on the first conductive outer layer 21, and the first mounting groove 211 has a composite shape of a circle and a rectangle;
s203, as shown in fig. 3 and 11, a first insulating layer is deposited on the wall of the first mounting groove 211, and a second mounting groove is surrounded by the first insulating layer; specifically, a first insulating layer may be deposited by chemical vapor deposition, atomic layer deposition, or the like, where the first insulating layer corresponds to the first partition 51;
s204, as shown in fig. 3 and 11, plating a first transparent conductive layer in the second mounting groove, wherein the first transparent conductive layer corresponds to the first conductive inner layer 22;
s205, etching the first metal layer to obtain a first via hole, and plugging a rubber nail 80 into the first via hole, wherein the rubber nail 80 comprises a first end part inserted into the first via hole and a second end part protruding out of the first metal layer, and an insulating annular part is deposited on the outer wall of the second end part in advance and corresponds to the first insulating part 431; as shown in fig. 4 and 5, etching is performed on the first conductive outer layer 21 to form a first via hole, and the first via hole is electroplated to form a first via 432;
s206, spin-coating an electrochromic outer layer 31 on the first metal layer, namely a PEDOT layer, wherein the electrochromic outer layer 31 is annular; spin-coating an electrochromic inner layer 32, i.e., a tungsten oxide layer, on the first transparent conductive layer; that is, as shown in fig. 6, an electrochromic outer layer 31 is spin-coated on the first conductive outer layer 21, and an electrochromic inner layer 32 is spin-coated on the first conductive inner layer 22;
s207, as shown in FIG. 7, a second metal layer is deposited on the electrochromic outer layer 31 and the electrochromic inner layer 32 to form a second conductive outer layer 41, and at this time, through holes are formed on the electrochromic outer layer 31 and the second conductive outer layer 41 corresponding to the second end parts of the rubber nails 80;
s208, etching the second metal layer to form a third mounting slot 411; depositing a second insulating layer on the wall of the third mounting slot 411, the second insulating layer enclosing a fourth mounting slot; depositing by adopting chemical vapor deposition, atomic layer deposition and other modes; plating a second transparent conductive layer in the fourth mounting groove; as shown in fig. 8, a second conductive outer layer 41 is formed on the second metal layer by etching, a second partition 52 is plated in a third mounting groove 411 of the second conductive outer layer 41, and a second transparent conductive layer, that is, a second conductive inner layer 42 is plated in a fourth mounting groove surrounded by the second partition 52;
s209, dissolving the rubber nail 80 by adopting an organic solvent; at this time, as shown in fig. 8, the solvent dissolves only the rubber nail 80 so that the insulating annular portion remains in the second conductive outer layer 41 and the electrochromic outer layer 31, forming a first insulating portion 431 so that the first pillar portion 71 can extend to the first conduction portion 432 through the first insulating portion 431, realizing the electrical connection of the first pillar portion 71 and the first conductive outer layer 21;
s210, forming a second via hole in the second metal layer; as shown in fig. 10, a second electrical connection channel 44 is formed in the second conductive outer layer 41.
It should be noted that, the conductive outer layers are all metal layers, and the conductive inner layers are all transparent conductive films (generally indium tin oxide, and have lower conductivity than the metal layers); the metal layer is adopted, so that the first electric connection channel 43 and the second electric connection channel 44 are convenient to mold and process; on the other hand, the conductivity of the conductive inner layer is lower, and the conductivity of the conductive outer layer is higher, which means that the electrochromic outer layer 31 is in an oxidation state faster, and the electrochromic inner layer 32 is in a reduction state longer, which means that when the image capturing unit 60 is started, a user is necessarily reminded of starting the image capturing unit 60, and then the electrochromic inner layer 32 becomes transparent, so that the information security is further improved.
Examples
The image capturing module provided in this embodiment includes an image capturing unit 60, and the electrochromic film in the first embodiment or the electrochromic film manufactured by the manufacturing method in the second embodiment is disposed outside the photosensitive structure of the image capturing unit 60. In the first and second embodiments, the specific structure and principle of the electrochromic film are described, and the camera module in this embodiment refers to the structure and has the technical effects as well.
In summary, the image capturing module provided in the embodiment has the advantages of high information security, small size, and the like.
Examples
The electronic device provided in this embodiment includes the camera module in the third embodiment. In the third embodiment, the specific structure and principle of the electrochromic film are described, and the electronic device in this embodiment refers to the camera module including the electrochromic film, which also has the technical effects.
In summary, the electronic device provided in the embodiment has the advantages of high information security, small size, and the like.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An electrochromic film is characterized by comprising a base film layer (10), a first conductive layer (20), an electrochromic layer (30) and a second conductive layer (40) which are sequentially stacked;
the second conductive layer (40) is arranged towards the image pickup unit (60), and the second conductive layer (40) is in contact with and electrically connected with a conductive column (70) protruding from the surface of the image pickup unit (60); the base film layer (10) is arranged on one side of the second conductive layer (40) far away from the image pickup unit (60);
the electrochromic layer (30) comprises an electrochromic outer layer (31) and an electrochromic inner layer (32), and the electrochromic inner layer (32) is arranged opposite to the photosensitive structure of the image pickup unit (60); the electrochromic outer layer (31) is arranged around the electrochromic inner layer (32);
wherein the electrochromic inner layer (32) is configured to block the imaging unit (60) when in an oxidation reaction state.
2. An electrochromic film according to claim 1, characterized in that one of the electrochromic outer layer (31) and the electrochromic inner layer (32) is in a reduced reaction state and the other is in an oxidized reaction state.
3. An electrochromic film according to claim 2, characterized in that the first electrically conductive layer (20) comprises a first electrically conductive outer layer (21) and a first electrically conductive inner layer (22) arranged on the base film layer (10); the second conductive layer (40) comprises a second conductive outer layer (41) and a second conductive inner layer (42) disposed on the electrochromic layer (30);
the electrochromic outer layer (31) is electrically connected with the first conductive outer layer (21) and the second conductive outer layer (41) respectively, and the electrochromic inner layer (32) is electrically connected with the first conductive inner layer (22) and the second conductive inner layer (42) respectively.
4. An electrochromic film according to claim 3, characterized in that a first electrical connection channel (43) is formed between the second conductive layer (40) and the first conductive layer (20), the first electrical connection channel (43) comprising a first insulating portion (431) and a first conducting portion (432); the first insulating part (431) penetrates through the second conductive outer layer (41) and the electrochromic outer layer (31); the first conducting part (432) penetrates through the first conductive outer layer (21);
the second conductive layer (40) is also provided with a second electric connection channel (44), and the first electric connection channel (43) and the second electric connection channel (44) can be inserted by the conductive column (70).
5. An electrochromic film according to claim 3, characterized in that said second conductive inner layer (42) is electrically connected to contacts of the surface of said camera unit (60);
a first separation part (51) is arranged between the first conductive outer layer (21) and the first conductive inner layer (22), the first separation part (51) comprises a first ring part (511) and a lead-out part (512), and the first conductive inner layer (22) comprises a first conductive main body (221) positioned in the first ring part (511) and a first conductive lead part (222) positioned in the lead-out part (512).
6. An electrochromic film according to claim 2, characterized in that the electrochromic outer layer (31) is a PEDOT layer and the electrochromic inner layer (32) is a tungsten oxide layer.
7. An electrochromic film according to claim 1, characterized in that the electrochromic outer layer (31) is integrally formed with the electrochromic inner layer (32);
the electrochromic outer layer (31) and the electrochromic inner layer (32) are simultaneously in a reduction reaction state or simultaneously in an oxidation reaction state.
8. A method of preparing an electrochromic film comprising:
providing a base film layer;
plating a first conductive layer on the base film layer;
forming an electrochromic layer on the first conductive layer;
and a second conductive layer is plated on the electrochromic layer, and the second conductive layer can be contacted with and electrically connected with the conductive column of the camera unit.
9. An image pickup module comprising an image pickup unit (60), wherein the electrochromic film according to any one of claims 1 to 7, or the electrochromic film produced by the production method according to claim 8 is provided outside a photosensitive structure of the image pickup unit (60).
10. An electronic device comprising a camera module according to claim 9.
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| CN202311806127.8A CN117452734B (en) | 2023-12-26 | 2023-12-26 | Electrochromic film, camera module and electronic equipment |
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| CN202311806127.8A CN117452734B (en) | 2023-12-26 | 2023-12-26 | Electrochromic film, camera module and electronic equipment |
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| JPH06165003A (en) * | 1992-11-25 | 1994-06-10 | Kyocera Corp | Image pickup device |
| CN2643573Y (en) * | 2003-08-23 | 2004-09-22 | 鸿富锦精密工业（深圳）有限公司 | Image pick-up device |
| CN107210554A (en) * | 2015-01-22 | 2017-09-26 | Unid有限公司 | Method for manufacturing electric interconnection structure |
| CN108807316A (en) * | 2017-08-14 | 2018-11-13 | 苏州捷芯威半导体有限公司 | Semiconductor package and semiconductor devices |
| CN109034103A (en) * | 2018-08-14 | 2018-12-18 | Oppo广东移动通信有限公司 | Electronic equipment, electrochromism portion control method and storage medium |
| CN110989260A (en) * | 2019-12-27 | 2020-04-10 | Oppo广东移动通信有限公司 | Electrochromic element, electrochromic assembly, camera module and electronic equipment |
| CN217135555U (en) * | 2021-12-15 | 2022-08-05 | 深圳宝龙达信息技术股份有限公司 | Lens assembly, camera and electronic equipment |
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2023
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06165003A (en) * | 1992-11-25 | 1994-06-10 | Kyocera Corp | Image pickup device |
| CN2643573Y (en) * | 2003-08-23 | 2004-09-22 | 鸿富锦精密工业（深圳）有限公司 | Image pick-up device |
| CN107210554A (en) * | 2015-01-22 | 2017-09-26 | Unid有限公司 | Method for manufacturing electric interconnection structure |
| CN108807316A (en) * | 2017-08-14 | 2018-11-13 | 苏州捷芯威半导体有限公司 | Semiconductor package and semiconductor devices |
| CN109034103A (en) * | 2018-08-14 | 2018-12-18 | Oppo广东移动通信有限公司 | Electronic equipment, electrochromism portion control method and storage medium |
| CN110989260A (en) * | 2019-12-27 | 2020-04-10 | Oppo广东移动通信有限公司 | Electrochromic element, electrochromic assembly, camera module and electronic equipment |
| CN217135555U (en) * | 2021-12-15 | 2022-08-05 | 深圳宝龙达信息技术股份有限公司 | Lens assembly, camera and electronic equipment |
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| CN117452734B (en) | 2024-03-26 |
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