CN110970153A - Conductive film and electronic device - Google Patents
Conductive film and electronic device Download PDFInfo
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- CN110970153A CN110970153A CN201911219331.3A CN201911219331A CN110970153A CN 110970153 A CN110970153 A CN 110970153A CN 201911219331 A CN201911219331 A CN 201911219331A CN 110970153 A CN110970153 A CN 110970153A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/16—Non-insulated conductors or conductive bodies characterised by their form comprising conductive material in insulating or poorly conductive material, e.g. conductive rubber
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0277—Details of the structure or mounting of specific components for a printed circuit board assembly
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/321—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by conductive adhesives
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Adhesive Tapes (AREA)
Abstract
The invention discloses a conductive film, which comprises a sticky base material (100), wherein the sticky base material (100) is provided with conductive particles (200), color-changing particles (300) and first color-changing trigger particles (400), the conductive particles (200), the color-changing particles (300) and the first color-changing trigger particles (400) are all dispersedly arranged in the sticky base material (100), when the pressure borne by the conductive film is smaller than a first preset value, the color-changing particles (300) are isolated from the first color-changing trigger particles (400), and the conductive film is in a first color; when the pressure born by the conductive film is larger than the first preset value, the color-changing particles (300) are fused with the first color-changing trigger particles (400), and the conductive film is in a second color (A). The scheme can solve the problem that the misjudgment rate is high in the detection of the undervoltage phenomenon in the assembling process of the existing conductive film. The invention discloses an electronic device.
Description
Technical Field
The invention relates to the technical field of communication equipment, in particular to a conductive film and electronic equipment.
Background
The present electronic device generally includes a display panel, and during the assembly process, the electrical connection among the display panel, the flexible circuit board, and the driving chip of the display panel is realized by a conductive film (e.g., ACF). In a specific assembling process, electrical connection can be realized only after certain temperature and pressure are applied to the conductive film, and a COG (chip On glass) binding process or a FOG (FPC On glass) binding process is finally realized.
However, in the current COG bonding process and the current FOG bonding process, the stability of the pressing device is problematic, and the phenomenon that the pressure applied to the conductive film is too high (overpressure) or not enough (underpressure) often occurs. The normal display of the display screen can be affected by excessive or insufficient pressure applied by the pressure applying device, and finally the defective rate of the electronic device is high. In order to solve the current problems, the industry mainly inspects the undervoltage phenomenon or the overvoltage phenomenon by observing the form of the pressing trace of the conductive particles through a microscope. However, this method requires human observation, and has a problem of high misjudgment rate.
Disclosure of Invention
The invention discloses a conductive film and electronic equipment, and aims to solve the problem that misjudgment rate is high in detection of an under-voltage phenomenon in the assembly process of the conventional conductive film.
In order to solve the problems, the invention adopts the following technical scheme:
in a first aspect, the invention discloses a conductive film, which comprises a sticky substrate, conductive particles, color-changing particles and first color-changing trigger particles, wherein the conductive particles, the color-changing particles and the first color-changing trigger particles are all dispersedly arranged in the sticky substrate, when the pressure borne by the conductive film is smaller than a first preset value, the color-changing particles are isolated from the first color-changing trigger particles, the conductive film presents a first color, when the pressure borne by the conductive film is larger than the first preset value, the color-changing particles are fused with the first color-changing trigger particles, and the conductive film presents a second color.
In a second aspect, the invention discloses an electronic device, which includes a display screen, a flexible circuit board and the conductive film, wherein the display screen is provided with a circuit layer, the conductive film is arranged between the circuit layer and the flexible circuit board, and the conductive film is electrically connected with the circuit layer and the flexible circuit board.
In a third aspect, the present invention discloses an electronic device, which includes a display screen, a driving chip, and the conductive film described above, where the display screen includes a display panel, the display panel is provided with a circuit layer, the conductive film is provided between the circuit layer and the driving chip, and the conductive film is electrically connected to the circuit layer and the driving chip.
The technical scheme adopted by the invention can achieve the following beneficial effects:
according to the conductive film disclosed by the embodiment of the invention, the structure of the existing conductive film is improved, and the color-changing particles and the first color-changing trigger particles are additionally arranged in the viscous base material, so that when the pressure borne by the conductive film is smaller than a first preset value, the color-changing particles are isolated from the first color-changing trigger particles, and the color-changing particles do not change color, so that the conductive film is in a first color, and the conductive film is defined to be in an under-voltage state; when the pressure born by the conductive film is greater than a first preset value, the first color-changing trigger particles are damaged, so that the first color-changing trigger particles are fused with the color-changing particles, finally, the color-changing particles change, the conductive film is in a second color, and the conductive film is defined to be in a non-undervoltage state. Under the premise, when the COG binding process or the FOG binding process is carried out, an operator can observe the color of the conductive film after the conductive film is pressed, the conductive film can be judged to be in an undervoltage state when the conductive film shows a first color, and the conductive film is shown to be in a non-undervoltage state when the conductive film shows a second color. The undervoltage phenomenon can be judged more accurately by directly observing the relatively dominant characteristic of the color, and finally the misjudgment rate of the detection of the undervoltage phenomenon in the assembly process of the conductive film can be reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic cross-sectional view of a conductive film according to an embodiment of the present invention;
fig. 2 is a schematic view of an assembly process of a flexible circuit board and a display screen through a conductive film according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a conductive film according to an embodiment of the disclosure under a pressure less than a first predetermined value;
fig. 4 is a schematic diagram of a conductive film showing a first color according to an embodiment of the disclosure;
fig. 5 is a schematic diagram illustrating a conductive film according to an embodiment of the disclosure, wherein the conductive film is subjected to a pressure greater than a first predetermined value and less than a second predetermined value;
fig. 6 is a schematic diagram of a conductive film showing a second color according to an embodiment of the disclosure;
fig. 7 is a schematic diagram illustrating a conductive film according to an embodiment of the disclosure when a pressure applied to the conductive film is greater than a second predetermined value;
fig. 8 is a schematic view illustrating a conductive film with a third color according to an embodiment of the present invention;
fig. 9 and 10 are schematic structural views of a first color-changing trigger particle and a second color-changing trigger particle, respectively.
Description of reference numerals:
100-adhesive substrate, 200-conductive particles, 300-color changing particles, 400-first color changing trigger particles, 410-first film wrapping part, 420-acidic liquid, 500-second color changing trigger particles, 510-second film wrapping part, 520-alkaline liquid, 600-display panel, 610-circuit layer, 700-flexible circuit board, 800-pressure head and 900-workbench.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 10, an embodiment of the invention discloses a conductive film, which is applied to an electronic device. The disclosed conductive film includes an adhesive substrate 100. The disclosed adhesive base material 100 is provided with conductive particles 200, color-changing particles 300, and first color-changing trigger particles 400.
The adhesive substrate 100 is a substrate of a conductive film and has a certain adhesiveness. The adhesive base material 100 may be a base material made of an adhesive substance such as an epoxy base material, an acryl base material, or the like.
The electronic device according to the embodiment of the present invention includes a display screen, a driving chip, and a flexible circuit board 700, where the display screen includes a display panel 600. In the COG bonding process, the driver chip and the display panel 600 are bonded and fixed in the FOG bonding process through the adhesive substrate 100, and the flexible circuit board 700 and the display panel 600 are bonded and fixed through the adhesive substrate 100. In a specific operation, the above portion is placed on the stage 900, and pressure is applied to the flexible circuit board 700 or the driving chip through the indenter 800, thereby applying pressure to the conductive film.
The adhesive base material 100 is also the basis for the arrangement of the conductive particles 200, the color-changing particles 300, and the first color-changing trigger particles 400. In the present embodiment, the conductive particles 200, the color-changing particles 300, and the first color-changing trigger particles 400 are all dispersedly disposed within the adhesive base material 100. The conductive particles 200 can be electrically connected after a certain temperature and pressure are applied to the conductive film, that is, the conductive film is deformed after a certain thermometer pressure is applied, so that the conductive particles 200 can electrically connect the driving chip and the circuit layer 610 of the display panel 600 or the flexible circuit board 700 and the circuit layer 610 of the display panel 600.
The color changing particles 300 are particles that are capable of changing color upon encountering a first color changing trigger substance. In a typical case, the color-changing particle 300 may be made of a material that turns red upon encountering an acidic substance, in which case the first color-changing trigger substance is an acidic substance. The color-changing particles 300 may be of various kinds, for example, the color-changing particles 300 may be litmus particles. Of course, the color-changing particles 300 may also be other particles of a substance that changes color when encountering an acidic substance, and the embodiment of the present invention does not limit the specific material of the color-changing particles 300. Of course the first color changing trigger medium is not limited to an acidic medium.
The first color-changing trigger particles 400 are particles containing a first color-changing trigger substance. In the embodiment of the present invention, when the pressure applied to the conductive film is less than the first preset value, the color-changing particles 300 are isolated from the first color-changing trigger particles 400, and the conductive film takes on the first color. In this case, the conductive film is subjected to a small pressure, so that the color-changing particles 300 and the first color-changing trigger particles 400 are not in contact with each other, and the color-changing particles 300 are not in color-changing, so that the entire conductive film has a first color, which may be a transparent color in a normal case, as shown in fig. 4. In this case, the state where the conductive film exhibits the first color may be defined as an under-voltage state. The first color-changing trigger particles 400 may be acidic particles.
When the pressure that bears at the conductive film is greater than first default, the pressure that discolour granule 300 and first discolour and trigger granule 400 and all bear is great, and first discolour triggers granule 400 can be damaged, and discolour granule 300 can with first discolour and trigger granule 400 and fuse this moment, and the granule 300 that discolours can discolour from this, and then makes the conductive film present second colour A. Typically, the color-changing particles 300 will turn red when they encounter an acidic material, eventually causing the conductive film to appear red. In this case, the state where the conductive film exhibits the second color a may be defined as a non-undervoltage state. In the embodiment of the present invention, the first color and the second color a are different.
In a specific design process, a first preset value can be determined according to a critical value of an under-voltage state and a non-under-voltage state, and then the first color-changing trigger particles 400 are adaptively selected according to the first preset value, so that the crushing critical value of the first color-changing trigger particles 400 is matched with the first preset value.
According to the conductive film disclosed by the embodiment of the invention, the structure of the existing conductive film is improved, and the color-changing particles 300 and the first color-changing trigger particles 400 are additionally arranged in the viscous base material 100, so that when the pressure borne by the conductive film is smaller than a first preset value, the color-changing particles 300 are isolated from the first color-changing trigger particles 400, the color-changing particles 300 do not change color, and the conductive film is enabled to show a first color and is defined to be in an under-voltage state; when the pressure born by the conductive film is greater than the first preset value, the first color-changing trigger particles 400 are damaged, so that the acidic substances contained in the conductive film are fused with the color-changing particles 300, and finally the color-changing particles 300 change, so that the conductive film is in a second color, and the conductive film is defined to be in a non-under-pressure state. Under the premise, when the COG binding process or the FOG binding process is carried out, an operator can observe the color of the conductive film after the conductive film is pressed, the conductive film can be judged to be in an undervoltage state when the conductive film shows a first color, and the conductive film is shown to be in a non-undervoltage state when the conductive film shows a second color. The undervoltage phenomenon can be judged more accurately by directly observing the relatively dominant characteristic of the color, and finally the misjudgment rate of the detection of the undervoltage phenomenon in the assembly process of the conductive film can be reduced.
As described in the background art, too large a pressure applied to the conductive film may affect the display function of the display screen, and the overvoltage phenomenon is determined by observing the form of the pressed trace of the conductive particle through a microscope, which also has a problem of high erroneous determination rate. Based on this, in a preferable scheme, the conductive film disclosed in the embodiment of the present invention may further include second color-changing trigger particles 500, and the second color-changing trigger particles 500 are dispersedly disposed within the adhesive base material 100. The color changing particle 300 changes color upon encountering the second color changing trigger substance, although the color change of the color changing particle 300 upon encountering the first color changing trigger substance is different from the color change upon encountering the second color changing trigger substance.
When the pressure applied to the conductive film is greater than the first preset value and less than the second preset value, the color-changing particles 300 and the first color-changing trigger particles 400 are fused, and the conductive film is in the second color a, for example, red. In this case, the conductive film is subjected to a large pressure, so that the color-changing particles 300 are fused with the first color-changing trigger particles 400 to take on the second color a. The state of the second color exhibited by the conductive film may be defined as a normal state, that is, the conductive film is subjected to moderate pressure during the assembly process, which meets the requirements of the COG bonding process or the FOG bonding process.
When the pressure born by the conductive film is greater than the second preset value, the color-changing particles 300, the second color-changing trigger particles 500 and the first color-changing trigger particles 400 are fused, and the conductive film is in the third color B. For example, when the color-changing particle 300 is fused with the first color-changing trigger particle 400 to present a red color and the color-changing particle 300 is fused with the second color-changing trigger particle 500 to present a blue color, the color-changing particle 300 is fused with both the second color-changing trigger particle 500 and the first color-changing trigger particle 400 to present a red color and a blue color and then a purple color. The second preset value is greater than the first preset value. In this case, the conductive film is subjected to a greater pressure so that the color-changing particles 300, the first color-changing trigger particles 400, and the second color-changing trigger particles 500 are fused to exhibit the third color B. A state where the conductive film takes on the third color B may be defined as an overvoltage state.
In a specific design process, a second preset value can be determined according to a critical value between a normal state and an overpressure state, and then the second color-changing trigger particles 500 are adaptively selected according to the second preset value, so that the crushing critical value of the second color-changing trigger particles 500 is matched with the second preset value.
When the COG binding process or the FOG binding process is carried out, an operator can observe the color of the conductive film after the conductive film is pressed, the conductive film is in a normal state when the conductive film is in the second color, and the conductive film is in an overvoltage state when the conductive film is in the third color. The overvoltage phenomenon can be judged more accurately by directly observing the more obvious characteristic of the color of the conductive film, and finally the misjudgment rate of overvoltage phenomenon detection in the assembly process of the conductive film can be reduced.
In the embodiment of the present invention, the conductive particles 200, the color-changing particles 300, the first color-changing trigger particles 400, and the second color-changing trigger particles 500 may be spherical particles.
As described above, on the premise that the pressure applied to the conductive film is increased, the color-changing particle 300, the first color-changing trigger particle 400, and the second color-changing trigger particle 500 are sequentially broken, and in the design process, the pressure resistance of the color-changing particle 300, the first color-changing trigger particle 400, and the second color-changing trigger particle 500 can be respectively designed, so as to meet the above requirements.
Specifically, the size of the particles can be designed so as to meet the requirement of respective rupture at different pressures. In a more preferred embodiment, the diameter of the conductive particle 200 is equal to the diameter of the color-changing particle 300, the diameter of the color-changing particle 300 may be larger than the diameter of the first color-changing trigger particle 400, and the diameter of the first color-changing trigger particle 400 is larger than the diameter of the second color-changing trigger particle 500.
When the pressure born by the conductive film is smaller than the first preset value, the conductive particles 200 and the color-changing particles 300 are both deformed, and the color-changing particles 300 can be cracked, but the first color-changing trigger particles 400 and the second color-changing trigger particles 500 are smaller, so that the deformation is smaller and the cracking cannot occur, and finally the conductive film is enabled to show the first color.
When the pressure born by the conductive film is greater than the first preset value and less than the second preset value, the color-changing particles 300 are broken, the first color-changing trigger particles 400 are broken along with the increase of the pressure by a large deformation amount, the color-changing particles 300 and the first color-changing trigger particles 400 are fused to finally present a second color A, and at the moment, the diameter of the second color-changing trigger particles 500 is minimum, so that the breakage cannot occur.
When the pressure born by the conductive film is greater than the second preset value, the color-changing particles 300 are broken, the first color-changing trigger particles 400 and the second color-changing trigger particles 500 are greatly deformed along with the further increase of the pressure, and are finally broken, and the color-changing particles 300, the first color-changing trigger particles 400 and the second color-changing trigger particles 500 are mutually fused to finally present a third color B.
In one specific embodiment, the diameter of the first color changing trigger particle 400 may be 2/3 the diameter of the color changing particle 300 and the diameter of the second color changing trigger particle 500 is 1/3 the diameter of the color changing particle 300. The size relationship between the first color changing trigger particle 400, the second color changing trigger particle 500, and the color changing particle 300 may also be other ratios. In addition, such difference of the different diameters facilitates the differentiation of different kinds of particles, thereby facilitating the arrangement of the color-changing particles 300, the first color-changing trigger particles 400, and the second color-changing trigger particles 500 within the adhesive base material 100 during the preparation of the conductive film.
Of course, without being limited to the size relationship between the diameters, the conductive film disclosed in the embodiment of the present invention may also achieve the purpose of displaying corresponding colors by breaking and fusing under different compression states by adjusting the strength of each particle.
In order to better realize the fusion color change, in a preferable scheme, the first color-changing trigger particle 400 is arranged between any adjacent color-changing particle 300 and the second color-changing trigger particle 500.
In the embodiment of the present invention, the conductive particles 200 are used for conducting electricity without being broken, and therefore, in a preferable embodiment, the hardness of the conductive particles 200 is greater than the hardness of the color-changing particles 300, the first color-changing trigger particles 400, and the second color-changing trigger particles 500.
In the embodiment of the present invention, the color-changing particles 300, the first color-changing trigger particles 400, and the second color-changing trigger particles 500 need to be broken, so that different colors can be displayed. The structures of the color-changing particle 300, the first color-changing trigger particle 400, and the second color-changing trigger particle 500 may be various. In one specific embodiment, where the first color-changing trigger particle 400 is an acidic particle, the first color-changing trigger particle 400 may include a first film wrapper 410 and an acidic liquid 420 disposed within the first film wrapper 410.
On the premise that the second color-changing trigger particle 500 is an alkaline particle, the second color-changing trigger particle 500 may include a second film wrapper 510 and an alkaline liquid 520 disposed within the second film wrapper 510. Of course, the color-changing particles 300 may also take a similar structure.
Based on the conductive film disclosed by the embodiment of the invention, the embodiment of the invention discloses an electronic device, the disclosed electronic device comprises a display screen, a flexible circuit board 700 and the conductive film, the display screen comprises a display panel 600, the display panel 600 is provided with a circuit layer 610, the conductive film is arranged between the circuit layer 610 and the flexible circuit board 700, and the conductive film is electrically connected with the circuit layer 610 and the flexible circuit board 700.
Based on the conductive film disclosed by the embodiment of the invention, the embodiment of the invention discloses an electronic device, the disclosed electronic device comprises a display screen, a driving chip and the conductive film, the display screen comprises a display panel 600, the display panel 600 is provided with a circuit layer 610, the conductive film is arranged between the circuit layer 610 and the driving chip, and the conductive film is electrically connected with the circuit layer 610 and the driving chip.
The electronic equipment disclosed by the embodiment of the invention can be a smart phone, a tablet computer, an electronic book reader, wearable equipment and the like, and the embodiment of the invention does not limit the specific types of the electronic equipment.
In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (13)
1. An electrically conductive film, comprising an adhesive substrate (100), wherein the adhesive substrate (100) is provided with electrically conductive particles (200), color-changing particles (300) and first color-changing trigger particles (400), the electrically conductive particles (200), the color-changing particles (300) and the first color-changing trigger particles (400) are all dispersedly disposed in the adhesive substrate (100), when the pressure applied to the electrically conductive film is smaller than a first preset value, the color-changing particles (300) are isolated from the first color-changing trigger particles (400), the electrically conductive film presents a first color, when the pressure applied to the electrically conductive film is larger than the first preset value, the color-changing particles (300) are fused with the first color-changing trigger particles (400), and the electrically conductive film presents a second color (a).
2. The conductive film of claim 1, wherein the adhesive substrate (100) is further provided with second color-changing trigger particles (500), the second color-changing trigger particles (500) are dispersedly disposed within the adhesive substrate (100), the color-changing particles (300) are fused with the first color-changing trigger particles (400) when the conductive film is subjected to a pressure greater than the first preset value and less than a second preset value, the conductive film exhibits the second color, the color-changing particles (300) are fused with both the second color-changing trigger particles (500) and the first color-changing trigger particles (400) when the conductive film is subjected to a pressure greater than the second preset value, and the conductive film exhibits a third color (B).
3. The conductive film of claim 2, wherein the conductive particles (200), the color-changing particles (300), the first color-changing trigger particles (400), and the second color-changing trigger particles (500) are all spherical particles.
4. The conductive film of claim 3, wherein the diameter of the conductive particles (200) is equal to the diameter of the color-changing particles (300), the diameter of the color-changing particles (300) is larger than the diameter of the first color-changing trigger particles (400), and the diameter of the first color-changing trigger particles (400) is larger than the diameter of the second color-changing trigger particles (500).
5. The conductive film of claim 4, wherein the diameter of the first color-changing trigger particles (400) is 2/3 times the diameter of the color-changing particles (300), and the diameter of the second color-changing trigger particles (500) is 1/3 times the diameter of the color-changing particles (300).
6. The conductive film of claim 2, wherein a first color shifting trigger particle (400) is disposed between any adjacent color shifting particle (300) and the second color shifting trigger particle (500).
7. The conductive film of claim 2, wherein the second color change trigger particles (500) are alkaline particles.
8. The conductive film of claim 7, wherein the second color-changing trigger particle (500) comprises a second film wrapper (510) and an alkaline liquid (520) disposed within the second film wrapper (510).
9. The conductive film of claim 1, wherein the first color change trigger particles (400) are acidic particles.
10. The conductive film of claim 9, wherein the first color-changing trigger particle (400) comprises a first film wrapper (410) and an acidic liquid (420) disposed within the first film wrapper (410).
11. The conductive film of claim 1, wherein the adhesive substrate (100) is an epoxy substrate or an acrylic substrate.
12. An electronic device, characterized by comprising a display screen, a flexible circuit board (700), and the conductive film of any one of claims 1 to 11, the display screen comprising a display panel (600), the display panel (600) being provided with a wiring layer (610), the conductive film being provided between the wiring layer (610) and the flexible circuit board (700), the conductive film electrically connecting the wiring layer (610) and the flexible circuit board (700).
13. An electronic device, comprising a display screen, a driving chip and the conductive film of any one of claims 1 to 11, wherein the display screen comprises a display panel (600), the display panel (600) is provided with a circuit layer (610), the conductive film is arranged between the circuit layer (610) and the driving chip, and the conductive film is electrically connected with the circuit layer (610) and the driving chip.
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