CN112867378A - Electromagnetic shielding film, display panel and display device - Google Patents
Electromagnetic shielding film, display panel and display device Download PDFInfo
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- CN112867378A CN112867378A CN202110024034.4A CN202110024034A CN112867378A CN 112867378 A CN112867378 A CN 112867378A CN 202110024034 A CN202110024034 A CN 202110024034A CN 112867378 A CN112867378 A CN 112867378A
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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
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
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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
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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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
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0277—Bendability or stretchability details
- H05K1/028—Bending or folding regions of flexible printed circuits
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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
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0277—Bendability or stretchability details
- H05K1/028—Bending or folding regions of flexible printed circuits
- H05K1/0281—Reinforcement details thereof
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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
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
- H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
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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
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/0054—Casings specially adapted for display applications
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses an electromagnetic shielding film, a display panel and a display device. The electromagnetic shielding film comprises a first main body part and a protection part; the protection part comprises a connecting part connected to one side of the first main body part and extension parts extending from two opposite ends of the connecting part, and the connecting part and the two extension parts are used for enclosing a protection cavity. The display panel comprises a circuit board which comprises a second main body part and a flexible connecting part extending out of one side of the second main body part; the electromagnetic shielding film comprises a first main body part and a protection part extending out of one side of the first main body part, and the protection part is provided with a protection cavity; the first main body part covers the second main body part, and the flexible connecting part is contained in the protection cavity. The electromagnetic shielding film is used for reinforcing the flexible connecting part of the circuit board, so that the problem of breakage in the repeated bending process is avoided, the electromagnetic shielding performance of the circuit board is improved, and the product quality of the display panel is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to an electromagnetic shielding film, a display panel and a display device.
Background
In the modern communication industry, the market demand of products such as mobile phones, televisions, flat panels, notebooks, digital cameras and the like is increasing, various display devices are developing towards higher integration level, the design of internal elements is smaller and thinner, and circuit board elements are prone to failure after thinning and miniaturization design. In production, the circuit board product needs to be subjected to multiple picture detection and function detection, and the circuit board needs to be connected with a detection jig during detection. In the design of circuit board products in the market at present, the connection part has no reinforcement, and in the process of repeated connection testing, the connection part of the circuit board is repeatedly bent for many times, so that the circuit board is easily broken, and the quality of the product is poor.
Disclosure of Invention
An object of the present invention is to provide an electromagnetic shielding film having a protective portion and providing excellent bending resistance.
The invention also provides a display panel, wherein the circuit board of the display panel is repeatedly bent and cannot be broken, and the product quality is good.
To achieve the above object, an embodiment of the present invention provides an electromagnetic shielding film, including: a first main body portion;
the protection portion extends from one side of first main part, the protection portion including connect in the connecting portion of one side of first main part with from the extension that extends at the relative both ends of connecting portion, connecting portion and two the extension is used for enclosing into the protection chamber.
In some embodiments, the connection portion and the extension portion each include a composite layer including a first layer and a second layer arranged in a stack, the first layer including a plurality of first extension portions extending in a first direction, the second layer including a plurality of second extension portions extending in a second direction;
the first direction intersects the second direction.
In some embodiments, the composite layer is made of glass fiber, carbon fiber or aramid fiber.
An embodiment of the present invention provides a display panel, including: the circuit board comprises a second main body part and a flexible connecting part extending out of one side of the second main body part;
the electromagnetic shielding film comprises a first main body part and a protection part extending out of one side of the first main body part, and the protection part is provided with a protection cavity;
the first main body part covers the second main body part, and the flexible connecting part is contained in the protection cavity.
In some embodiments, the protection portion includes a connection portion connected to the one side of the first main body portion and an extension portion extending from opposite ends of the connection portion toward a direction away from the connection portion, and the connection portion and the extension portion surround the protection cavity.
In some embodiments, the connection portion and the extension portion each include a composite layer including a first layer and a second layer arranged in a stack, the first layer including a plurality of first extension portions extending in a first direction, the second layer including a plurality of second extension portions extending in a second direction;
the first direction intersects the second direction.
In some embodiments, each of the extensions includes a first extension plate extending from an end of the connection portion toward a direction away from the connection portion, and a second extension plate extending from an end of the first extension plate away from the connection portion toward the other extension portion, and the connection portion, the first extension plate, and the second extension plate surround the protection cavity.
In some embodiments, the opposite ends of the two second extension plates are in contact with each other.
In some embodiments, the circuit board includes a connector disposed on the flexible connection portion, the connector being exposed to the protection portion.
An embodiment of the present invention provides a display device, including the display panel according to the foregoing embodiment.
The invention discloses an electromagnetic shielding film, a display panel and a display device. The electromagnetic shielding film comprises a first main body part and a protection part; the protection part comprises a connecting part connected to one side of the first main body part and extension parts extending from two opposite ends of the connecting part, and the connecting part and the two extension parts are used for enclosing a protection cavity. The display panel comprises a circuit board which comprises a second main body part and a flexible connecting part extending out of one side of the second main body part; the electromagnetic shielding film comprises a first main body part and a protection part extending out of one side of the first main body part, and the protection part is provided with a protection cavity; the first main body part covers the second main body part, and the flexible connecting part is contained in the protection cavity. The electromagnetic shielding film is used for reinforcing the flexible connecting part of the circuit board, so that the problem of breakage in the repeated bending process is avoided, the electromagnetic shielding performance of the circuit board is improved, and the product quality of the display panel is improved.
Drawings
The technical solution and other advantages of the present invention will become apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings.
Fig. 1 is a schematic structural diagram of an electromagnetic shielding film according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an electromagnetic shielding film according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electromagnetic shielding film according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a display panel according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. 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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
Specifically, referring to fig. 1 to 3, the present invention provides an electromagnetic shielding film, which includes a first main body 11;
the protection portion 12 extends from one side of the first main body portion 11, the protection portion 12 includes a connection portion 121 connected to the one side of the first main body portion 11 and extension portions 122 extending from opposite ends of the connection portion 121, and the connection portion 121 and the two extension portions 122 are used for enclosing a protection cavity.
It can be understood that the electromagnetic shielding film 1 includes a first main body portion 11 and a protection portion 12, a connection portion 121 of the protection portion 12 extends from one side of the first main body portion 11, the extension portions 122 extend from two ends of the connection portion 121, and after the extension portions 122 at the two ends are relatively bent, a protection cavity structure is formed with the connection portion 121, so that the bending resistance of the circuit board accommodated in the protection cavity structure can be improved, and the circuit board is prevented from being easily broken during the repeated bending process.
The film layer structure of the electromagnetic shielding film 1 may include a bonding layer 101, a conductive cloth 102 disposed on the bonding layer 101, a wave-absorbing layer 104 disposed on the conductive cloth 102, and an insulating layer 105 disposed on the wave-absorbing layer 104; the composite layer 103 is disposed between the conductive cloth 102 and the wave-absorbing layer 104.
The material of the adhesive layer 101 is any one of modified urethane resin, acrylic resin, rubber, epoxy resin, and polyimide resin. The adhesive layer 101 is used for attaching the electromagnetic shielding film 1 to the surface of an integrated circuit device such as a circuit board, so that the electromagnetic shielding film 1 can be tightly adhered to the circuit board, and the electromagnetic shielding effect is better achieved. The conductive cloth 102 is disposed on the adhesive layer 101, and the conductive cloth 102 is made of a fiber cloth as a base material, and is subjected to a pre-treatment and then a metal plating layer is applied to make the conductive cloth have a metal characteristic. The base material of the conductive cloth can be polyester fiber cloth, and the conductive cloth can be nickel conductive cloth, gold-plated conductive cloth, carbon-plated conductive cloth or aluminum foil fiber composite cloth. The conductive cloth is planar, and the conductive cloth is flexible and can be flexibly deformed at will. Further, the conductive cloth may be replaced with a material having pores, such as a conductive mesh or a conductive non-woven fabric. The structure of the conductive cloth is more compact and stable, and the shielding effect of the electromagnetic shielding film can be improved. The wave-absorbing layer 104 covers the conductive cloth, the wave-absorbing layer 104 is made of wave-absorbing materials, and the wave-absorbing materials are materials capable of absorbing or greatly reducing electromagnetic wave energy received by the surface of the wave-absorbing layer, so that the interference of the electromagnetic wave is reduced. Specifically, the wave-absorbing layer 104 includes a wave-absorbing agent and a matrix resin, the wave-absorbing agent particles are mixed in the matrix resin to form a structure in which the wave-absorbing agent particles are embedded in the matrix resin, the wave-absorbing agent is any one or more of graphene, silicon carbide, graphite, carbon fiber, ferrite, and the like, and the matrix resin is any one of modified polyurethane resin, acrylic resin, rubber, and epoxy resin. After the wave-absorbing layer 104 is attached to the conductive cloth 102, the electromagnetic shielding effect can be further improved. The insulating layer 105 can be an insulating adhesive tape, the insulating layer 105 is attached to the wave absorbing layer, the electromagnetic shielding film 1 plays a role in insulating protection, and the shielding effect of the electromagnetic shielding film is improved. Preferably, the thickness of the electro-magnetic shielding film 1 is 50 to 100 μm. It can be understood that the thickness range of the electromagnetic shielding film 1 is set to be 50-100 μm, and the thickness of the electromagnetic shielding film is thinner, so that when the electromagnetic shielding film is attached to an integrated circuit device such as a circuit board, the electromagnetic shielding film can provide good electromagnetic shielding and bending resistance functions, and the thickness of the circuit board cannot be greatly influenced. The thicknesses of the partial layers of the electromagnetic shielding film 1 are preferably: the thickness of bonding layer 101 is about 10um, the thickness of conductive cloth 102 is about 30um, the thickness of absorbing layer 104 is about 50um, the thickness of insulating layer 105 is about 10 um.
The connecting portion 121 and the extending portion 122 each include a composite layer 103, the composite layer 103 includes a first layer 1031 and a second layer 1032, the first layer 1031 includes a plurality of first extending portions 10310 extending along a first direction, the second layer 1032 includes a plurality of second extending portions 10320 extending along a second direction;
the first direction intersects the second direction.
It is understood that the connection portion 121 and the extension portion 122 each include a composite layer 103, and the composite layer 103 is disposed between the conductive cloth 102 and the wave-absorbing layer 104; the composite layer 103 comprises a first layer 1031 and a second layer 1032 arranged in a stack, the first layer 1031 comprising a plurality of first extension portions 10310 extending in a first direction, the second layer 1032 comprising a plurality of second extension portions 10320 extending in a second direction; the first direction and the second direction intersect with each other.
The composite layer 103 includes a first layer 1031 and a second layer 1032 which are staggered with each other, so that the bending resistance of the electromagnetic shielding film 1 is greatly improved, and the structures of the first layer 1031 and the second layer 1032 have different directivities, so as to bear bending forces in different directions, thereby improving the bending resistance of the electromagnetic shielding film 1. Preferably, the first direction and the second direction are perpendicular to each other. It can be understood that the included angle between the first direction and the second direction may be a plurality of angles, and preferably, the included angle between the first direction and the second direction is set to be 90 °, and the composite layer 103 formed by the extending portions of the first layer and the second layer having the mutually perpendicular structure has a stronger bearing capability to the bending force applied during repeated bending, so as to ensure that the electromagnetic shielding film 1 has better bending resistance.
The composite layer 103 is made of glass fiber, carbon fiber or aramid fiber. It is understood that the composite layer 103 is formed by winding, molding or pultrusion a reinforcing fiber material, such as glass fiber, carbon fiber, aramid fiber, etc., with a matrix material. The fiber material is used for enhancing the structural strength of the composite layer, and the composite layer is ensured not to be easily broken in the bending deformation process.
The film layer structure of the electromagnetic shielding film 1 further includes a release layer 100 attached to the surface of the adhesive layer 101. The release layer 100 is made of any one of a PET fluoroplastic release layer, a PET silicone oil-containing release layer and a PE release layer. The release layer 100 functions to protect the adhesive layer of the electromagnetic shielding film from external dust particles. When the electromagnetic shielding film is used, the outermost release layer 100 needs to be torn off, and the adhesive layer 101 is attached to the surface of an integrated circuit device such as a circuit board.
Referring to fig. 4 to fig. 5, an embodiment of the invention further provides a display panel, including:
a circuit board 2 including a second body portion 21 and a flexible connection portion 22 extending from one side of the second body portion 21;
the electromagnetic shielding film 1 comprises a first main body part 11 and a protection part 12 extending from one side of the first main body part 11, wherein the protection part 12 is provided with a protection cavity;
the first body 11 covers the second body 21, and the flexible connecting portion 22 is accommodated in the protection cavity.
The protection portion 12 includes a connection portion 121 connected to the one side of the first body portion 11 and an extension portion 122 extending from opposite ends of the connection portion 121 toward a direction away from the connection portion 121, and the connection portion 121 and the extension portion 122 surround the protection cavity.
It is understood that the circuit board 2 includes a second main body portion 21 and a flexible connecting portion 22 extending from one side of the second main body portion 21, the second main body portion 21 includes components including, but not limited to, a chip, a resistor, a capacitor and a transistor, and the flexible connecting portion 22 can be bent and deformed arbitrarily.
The display panel may be an OLED display panel or an LCD display panel. In production, the circuit board 2 of the display panel needs to be tested for multiple times, the circuit board 2 needs to be connected with a testing jig during testing, the flexible connecting portion 22 of the circuit board is repeatedly bent during repeated connection, and the flexible connecting portion 22 is easily broken. Electromagnetic shielding film 1 is laminating behind circuit board 2, promptly first main part 11 covers second main part 21, flexonics portion 22 accept in the protection chamber, protection portion 12 can with flexonics portion 22 wraps up, has strengthened the resistant bending property of flexonics portion 22 of circuit board, avoids flexonics portion 22 is being buckled the in-process repeatedly and is broken, has guaranteed circuit board 2's normal use. The shape and size of the electromagnetic shielding film 1 can be adjusted adaptively according to the actual shape of the circuit board 2, so as to be better covered on the surface of the circuit board 2.
The connecting portion 121 and the extending portion 122 each include a composite layer 103, the composite layer 103 includes a first layer 1031 and a second layer 1032, the first layer 1031 includes a plurality of first extending portions 10310 extending along a first direction, the second layer 1032 includes a plurality of second extending portions 10320 extending along a second direction; the first direction intersects the second direction.
It can be understood that the connection portion 121 and the extension portion 122 both include the composite layer 103, and the composite layer 103 includes the first layer 1031 and the second layer 1032 which are staggered with each other, so that the bending resistance of the electromagnetic shielding film 1 is greatly improved, and the structures of the first layer 1031 and the second layer 1032 have different directivities, and can bear bending forces in different directions, thereby improving the bending resistance of the electromagnetic shielding film 1. Preferably, the first direction and the second direction are perpendicular to each other. It can be understood that the included angle between the first direction and the second direction may be a plurality of angles, and preferably, the included angle between the first direction and the second direction is set to be 90 °, and the composite layer 103 formed by the extending portions of the first layer and the second layer having the mutually perpendicular structure has a stronger bearing capability to the bending force applied during repeated bending, so as to ensure that the electromagnetic shielding film 1 has better bending resistance.
Each extension portion 122 includes a first extension plate 1221 extending from an end of the connection portion 121 toward a direction away from the connection portion, and a second extension plate 1222 extending from an end of the first extension plate 1221 away from the connection portion 121 toward the other extension portion 122, where the connection portion 121, the first extension plate 1221, and the second extension plate 1222 surround the protection cavity.
It can be understood that, when the flexible connecting portion 22 is received in the protection cavity, the connecting portion 121, the first extension plate 1221 and the second extension plate 1222 surround the protection cavity, the second extension plate 1222 is bent to an opposite side of the connecting portion 121, and the second extension plate 1222 covers an opposite side of the flexible connecting portion 22, so as to facilitate better bending resistance of the flexible connecting portion 22.
Opposite ends of the second extension plates 1222 are in contact with each other.
It can be understood that opposite ends of the two second extension plates 122 contact each other, that is, the electromagnetic shielding film 1 completely wraps the flexible connection portion 22 of the circuit board 2, and the bending resistance of the flexible connection portion 22 is improved. On the premise of ensuring the bending resistance of the flexible connecting portion 22, the opposite ends of the two second extending plates 1222 are not in contact with each other, and a gap is left between the two extending plates 1222, so that the heat dissipation of the circuit board 2 in the testing process is facilitated.
The circuit board 2 includes a connector 23 provided on the flexible connecting portion 22, and the connector 23 is exposed to the protection portion 12.
It can be understood that the connector 23 on the flexible connection portion 23 is electrically connected to an external test fixture, and the connector 23 may be a gold finger, and the gold finger is connected to a test port of the test fixture to implement transmission of the detection signal and the feedback signal. The connector 23 is exposed to the protection part 12, so that the electromagnetic shielding film 1 is prevented from covering a golden finger, and normal transmission of a detection signal and a feedback signal is ensured.
An embodiment of the present invention further provides a display device, which includes the display panel described in any of the previous embodiments. The display device can be a fixed terminal display device, such as a computer, a household television and intelligent household equipment; or a mobile terminal display device, such as a mobile phone, a tablet computer, a navigator, a digital camera; and may be a wearable terminal display device, such as a sports watch, virtual reality wearable device. The specific structure of the display device can refer to the embodiment of the display panel and fig. 1-5 as described in any of the previous embodiments, and is not repeated herein.
The invention discloses an electromagnetic shielding film, a display panel and a display device. The electromagnetic shielding film comprises a first main body part and a protection part; the protection part comprises a connecting part connected to one side of the first main body part and extension parts extending from two opposite ends of the connecting part, and the connecting part and the two extension parts are used for enclosing a protection cavity. The display panel comprises a circuit board which comprises a second main body part and a flexible connecting part extending out of one side of the second main body part; the electromagnetic shielding film comprises a first main body part and a protection part extending out of one side of the first main body part, and the protection part is provided with a protection cavity; the first main body part covers the second main body part, and the flexible connecting part is contained in the protection cavity. The electromagnetic shielding film is used for reinforcing the flexible connecting part of the circuit board, so that the problem of breakage in the repeated bending process is avoided, the electromagnetic shielding performance of the circuit board is improved, and the product quality of the display panel is improved.
The electromagnetic shielding film, the display panel and the display device provided by the embodiment of the invention are described in detail, a specific example is applied in the description to explain the principle and the implementation of the invention, and the description of the embodiment is only used for helping to understand the technical scheme and the core idea of the invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An electromagnetic shielding film, comprising:
a first main body portion;
the protection portion extends from one side of first main part, the protection portion including connect in the connecting portion of one side of first main part with from the extension that extends at the relative both ends of connecting portion, connecting portion and two the extension is used for enclosing into the protection chamber.
2. The electromagnetic shielding film according to claim 1, wherein the connection portion and the extension portion each include a composite layer including a first layer and a second layer arranged in a stack, the first layer including a plurality of first extension portions extending in a first direction, the second layer including a plurality of second extension portions extending in a second direction;
the first direction intersects the second direction.
3. The electromagnetic shielding film according to claim 2, wherein the composite layer is made of glass fiber, carbon fiber or aramid fiber.
4. A display panel, comprising:
the circuit board comprises a second main body part and a flexible connecting part extending out of one side of the second main body part;
the electromagnetic shielding film comprises a first main body part and a protection part extending out of one side of the first main body part, and the protection part is provided with a protection cavity;
the first main body part covers the second main body part, and the flexible connecting part is contained in the protection cavity.
5. The display panel according to claim 4, wherein the protection portion includes a connection portion connected to the one side of the first main body portion and an extension portion extending from opposite ends of the connection portion toward a direction away from the connection portion, and the connection portion and the extension portion surround the protection cavity.
6. The display panel according to claim 5, wherein the connection portion and the extension portion each include a composite layer including a first layer and a second layer arranged in a stack, the first layer including a plurality of first extension portions extending in a first direction, the second layer including a plurality of second extension portions extending in a second direction;
the first direction intersects the second direction.
7. The display panel according to claim 5, wherein each of the extension portions includes a first extension plate extending from an end of the connection portion toward a direction away from the connection portion, and a second extension plate extending from an end of the first extension plate away from the connection portion toward the other extension portion, the connection portion, the first extension plate, and the second extension plate surrounding the protection cavity.
8. The display panel according to claim 7, wherein opposite ends of the two second extension plates are in contact with each other.
9. The display panel according to claim 4, wherein the circuit board includes a connector provided on the flexible connection portion, the connector being exposed to the protective portion.
10. A display device characterized by comprising the display panel according to any one of claims 4 to 9.
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| CN202110024034.4A CN112867378B (en) | 2021-01-08 | 2021-01-08 | Electromagnetic shielding film, display panel and display device |
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| CN202110024034.4A CN112867378B (en) | 2021-01-08 | 2021-01-08 | Electromagnetic shielding film, display panel and display device |
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