Anti-interference display screen mipi wiring structure

Abstract

The anti-interference display screen mipi routing structure comprises a first insulating layer, a second insulating layer and a third insulating layer, the second insulating layer is located below the first insulating layer, the third insulating layer is located below the second insulating layer, an EMI shielding film is arranged on the upper surface of the first insulating layer, and an anti-interference layer is arranged on the lower surface of the third insulating layer. Windows are arranged on the left side and the right side of the first insulating layer, the EMI shielding film completely covers the windows, a mipi circuit layer is arranged between the first insulating layer and the second insulating layer, the mipi circuit layer comprises a plurality of mipi circuits arranged in parallel, a second GND circuit is arranged between every two adjacent mipi circuits, first GND circuits are arranged on the left side and the right side of each mipi circuit, and a third GND circuit is arranged in the third insulating layer. The attaching connection between the window and the EMI shielding film can completely isolate the mipi circuit from the peripheral wiring circuit to form a closed GND wrapping layer, the mipi circuit is completely wrapped, and the effect of shielding external interference can be achieved.

Description

Technical Field

[0001] The utility model relates to a MIPI structure, more specifically, to an anti-interference MIPI wiring structure of a display screen. Background Art

[0002] Usually, in order to improve the anti-battery interference function, a shielding film is attached to the display screen. However, how to properly ground the shielding film without taking up too much space has become a technical problem that needs to be solved urgently.

[0003] Chinese utility model patent document CN218768111U discloses a touch display module with excellent anti-interference performance, characterized in that it includes an FPC and a touch panel and an OLED display panel stacked from the outside to the inside, and the touch panel and the OLED display panel are both bonded to the FPC; wherein the FPC is electrically connected to the external motherboard connector, the surface of the FPC is covered with an EMI shielding film, some components arranged on the FPC are exposed to the EMI shielding film, and some components are covered with a grounded conductive cloth; the FPC is also provided with an ESD protection circuit, and the ESD protection circuit includes a TVS diode added between the system power supply end and the ground and between the logic power supply end and the ground. The FPC is provided with multiple pairs of mipi differential lines, and the mipi differential lines in each pair are of equal length and distance, and the line spacing between them is not greater than 0.5mm. The FPC is connected to the motherboard connector through a power line, and the line width of the power line is compensated by 20% based on the power supply calculation line width. A ground wire is arranged around the periphery of the FPC to enhance the conductive ability of the FPC for electrostatic discharge. The FPC is provided with a plurality of ID coding areas, and a plurality of the ID coding areas are coated with white ink. The FPC is provided with a plurality of bending areas, and a plurality of the bending areas are mesh copper. The FPC is provided with a plurality of test points, and a plurality of the test points are covered with insulating tape. The FPC is provided with a reinforcing plate, and the reinforcing plate is arranged on the back of the FPC and corresponds to the component area arranged on the front of the FPC, and the components are installed in the component area. The FPC includes a main FPC and a touch FPC, and the touch FPC is electrically connected to the main FPC, and one side of the main FPC overlaps with a partial orthographic projection of the touch FPC. The touch display module also includes: a driving chip, which is arranged on the main FPC and electrically connected to the OLED display panel, and is used to provide driving and instruction sets to control the display effect of the OLED display panel; a touch chip, which is arranged on the touch FPC and electrically connected to the touch panel, and is used to generate touch information according to environmental changes of the touch panel.

[0004] Obviously, the patent has an EMI shielding film on the surface of the FPC, which can isolate the external influence on the internal circuit, and also isolate the influence of the internal signal on the external signal; and further cover the components exposed to the EMI shielding film on the FPC with conductive cloth, thereby shielding the external radiation of the components when working. However, this structure cannot solve the shielding problem of the existing display mipi routing. Utility Model Content

[0005] Based on this, it is necessary to provide an anti-interference display screen mipi wiring structure for the above technical problems. The anti-interference display screen mipi wiring structure includes a first insulating layer, a second insulating layer and a third insulating layer. The second insulating layer is located below the first insulating layer, and the third insulating layer is located below the second insulating layer. An EMI shielding film is provided on the upper surface of the first insulating layer. Windows are provided on the left and right sides of the first insulating layer. The EMI shielding film completely covers the windows. A mipi line layer is provided between the first insulating layer and the second insulating layer. The mipi line layer includes several parallel mipi lines. A second GND line is provided between adjacent mipi lines. A first GND line is provided on the left and right sides of the mipi line. A third GND line is provided in the third insulating layer. Since windows are provided on the left and right sides of the first insulating layer, the first GND line below is completely exposed. In this way, when the EMI shielding film is attached, the EMI shielding film can be directly connected to the first GND line through the two windows. In addition, the attachment connection between the long strip of openings and the EMI shielding film can completely isolate the mipi line from the peripheral routing lines, forming a closed GND wrapping layer, which completely wraps the mipi line and can play a role in shielding external interference.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A mipi wiring structure for an anti-interference display screen, characterized in that the mipi wiring structure for an anti-interference display screen comprises a first insulating layer, a second insulating layer and a third insulating layer, the second insulating layer is located below the first insulating layer, the third insulating layer is located below the second insulating layer, an EMI shielding film is provided on the upper surface of the first insulating layer, windows are provided on the left and right sides of the first insulating layer, the EMI shielding film completely covers the windows, a mipi circuit layer is provided between the first insulating layer and the second insulating layer, the mipi circuit layer comprises a plurality of mipi circuits arranged in parallel, a second GND circuit is provided between adjacent mipi circuits, a first GND circuit is provided on the left and right sides of the mipi circuit, and a third GND circuit is provided in the third insulating layer.

[0008] As a preferred implementation of the anti-interference display screen MIPI wiring structure provided by the utility model, the window penetrates the first insulating layer.

[0009] As a preferred implementation of the anti-interference display screen MIPI wiring structure provided by the utility model, the window is rectangular.

[0010] As a preferred implementation of the anti-interference display screen MIPI wiring structure provided by the utility model, the bottom of the window is in an inverted trapezoidal shape.

[0011] As a preferred implementation of the anti-interference display screen MIPI wiring structure provided by the utility model, the bottom of the window is arc-shaped.

[0012] As a preferred implementation of the anti-interference display screen MIPI wiring structure provided by the utility model, the bottom of the window is wavy.

[0013] As a preferred implementation of the anti-interference display screen MIPI wiring structure provided by the utility model, a conductive silver-plated layer is provided at the bottom of the window.

[0014] As a preferred implementation of the anti-interference display screen MIPI wiring structure provided by the utility model, the conductive silver-plated layer is a vapor-deposited film.

[0015] As a preferred implementation of the anti-interference display screen MIPI wiring structure provided by the utility model, the thickness of the conductive silver-plated layer is 1 micron to 3 microns.

[0016] As a preferred implementation of the anti-interference display screen MIPI wiring structure provided by the utility model, the thickness of the conductive silver-plated layer is 2 microns.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model provides an anti-interference display screen mipi wiring structure. Since the left and right sides of the first insulating layer are provided with windows, the first GND circuit below is completely exposed. In this way, when the EMI shielding film is attached, the EMI shielding film can be directly connected to the first GND circuit through the two windows. In addition, the attachment connection between the long strip of windows and the EMI shielding film can completely isolate the mipi circuit from the peripheral wiring circuit, forming a closed GND wrapping layer, which completely wraps the mipi circuit and can play a role in shielding external interference.

[0019] In addition, the bottom of the window can be made into an inverted trapezoid. Since the bottom of the window is in an inverted trapezoid, when attaching the EMI shielding film, the EMI shielding film can be prevented from being damaged due to large-angle folding at the bottom of the window, further improving the shielding effect of the EMI shielding film.

[0020] In addition, the bottom of the window can be made to be curved. Since the bottom of the window is curved, when attaching the EMI shielding film, the EMI shielding film can be prevented from being damaged due to large-angle folding at the bottom of the window, further improving the shielding effect of the EMI shielding film.

[0021] In addition, the bottom of the window can be made wavy. Since the bottom of the window is wavy, when attaching the EMI shielding film, the EMI shielding film can be prevented from being damaged due to large-angle folding at the bottom of the window, further improving the shielding effect of the EMI shielding film. At the same time, the wavy bottom can increase the contact area between the EMI shielding film and the first GND line, reduce the contact resistance, and reduce power consumption.

[0022] In addition, a conductive silver-plated layer may be provided at the bottom of the window. The conductive silver-plated layer is a vapor-deposited film. The thickness of the conductive silver-plated layer is 1 micron to 3 microns. Preferably, the thickness of the conductive silver-plated layer is 2 microns. The conductive silver-plated layer can reduce the contact resistance between the EMI shielding film and the first GND line, thereby further reducing power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1It is a schematic diagram of the planar structure of the anti-interference display screen mipi wiring structure of the utility model;

[0025] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the anti-interference display mipi wiring structure;

[0026] Figure 3 for Figure 2 A detailed enlarged schematic diagram of area A of the cross-sectional structural diagram of the anti-interference display mipi wiring structure, where the EMI shielding film is removed;

[0027] Figure 4 It is a structural schematic diagram of another embodiment of the anti-interference display screen mipi wiring structure of the utility model;

[0028] Figure 5 It is a structural schematic diagram of another embodiment of the anti-interference display screen mipi wiring structure of the utility model;

[0029] Figure 6 It is a structural schematic diagram of another embodiment of the anti-interference display screen mipi wiring structure of the utility model;

[0030] Figure 7 It is a structural schematic diagram of another embodiment of the anti-interference display screen mipi wiring structure of the utility model;

[0031] The markings in the figure are as follows: 1. First insulating layer; 11. Window; 111. Conductive silver-plated layer; 2. Second insulating layer; 3. Third insulating layer; 4. mipi line; 4S, mipi line layer; 5. EMI shielding film; G1. First GND line; G2. Second GND line; G3. Third GND line. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0033] As described in the background art, in the prior art, in order to improve the anti-battery interference function, a shielding film is attached to the display screen. However, how to properly ground the shielding film without taking up too much space has become a technical problem that needs to be solved urgently.

[0034] In order to solve this technical problem, the utility model provides an anti-interference display screen mipi wiring structure, comprising a first insulating layer 1, a second insulating layer 2 and a third insulating layer 3, wherein the second insulating layer 2 is located below the first insulating layer 1, the third insulating layer 3 is located below the second insulating layer 2, and an EMI shielding film 5 is provided on the upper surface of the first insulating layer 1. Windows 11 are provided on the left and right sides of the first insulating layer 1, and the EMI shielding film 5 completely covers the windows 11. A mipi circuit layer 4S is provided between the first insulating layer 1 and the second insulating layer 2, and the mipi circuit layer 4S includes a plurality of parallel mipi circuits 4, a second GND circuit G2 is provided between adjacent mipi circuits 4, and a first GND circuit G1 is provided on the left and right sides of the mipi circuit 4. A third GND circuit G3 is provided in the third insulating layer 3.

[0035] Through the above structural design, since the left and right sides of the first insulating layer 1 are provided with windows 11, the first GND line G1 below is completely exposed. In this way, when the EMI shielding film 5 is attached, the EMI shielding film 5 can be directly connected to the first GND line G1 through the two windows 11. In addition, the attachment connection between the long strip of windows 11 and the EMI shielding film 5 can completely isolate the mipi line 4 from the peripheral routing lines, forming a closed GND wrapping layer, which completely wraps the mipi line 4 and can play a role in shielding external interference.

[0036] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0037] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] Example 1

[0040] like Figure 1 , Figure 2 and Figure 3As shown, the anti-interference display screen mipi wiring structure includes a first insulating layer 1, a second insulating layer 2 and a third insulating layer 3, wherein the second insulating layer 2 is located below the first insulating layer 1, and the third insulating layer 3 is located below the second insulating layer 2. An EMI shielding film 5 is provided on the upper surface of the first insulating layer 1. Open windows 11 are provided on the left and right sides of the first insulating layer 1, and the EMI shielding film 5 completely covers the open windows 11.

[0041] A mipi circuit layer 4S is provided between the first insulating layer 1 and the second insulating layer 2. The mipi circuit layer 4S includes a plurality of parallel mipi circuits 4. A second GND circuit G2 is provided between adjacent mipi circuits 4. A first GND circuit G1 is provided on the left and right sides of the mipi circuit 4. A third GND circuit G3 is provided in the third insulating layer 3.

[0042] It should be noted that the opening 11 penetrates the first insulating layer 1. In addition, the opening 11 is rectangular.

[0043] The working mode of this embodiment is described below.

[0044] Since the left and right sides of the first insulating layer 1 are provided with windows 11, the first GND line G1 below is completely exposed. In this way, when the EMI shielding film 5 is attached, the EMI shielding film 5 can be directly connected to the first GND line G1 through the two windows 11. In addition, the attachment connection between the long strip of windows 11 and the EMI shielding film 5 can completely isolate the mipi line 4 from the peripheral routing lines, forming a closed GND wrapping layer, which completely wraps the mipi line 4 and can play a role in shielding external interference.

[0045] Example 2

[0046] The anti-interference display screen MIPI wiring structure provided in Example 1 is further optimized. Specifically, the bottom of the window 11 is in an inverted trapezoidal shape.

[0047] The working mode of this embodiment is described below.

[0048] Since the bottom of the window 11 is in an inverted trapezoidal shape, when the EMI shielding film 5 is attached, it can prevent the EMI shielding film 5 from being damaged due to large-angle folding at the bottom of the window 11, thereby further improving the shielding effect of the EMI shielding film 5.

[0049] Example 3

[0050] The anti-interference display screen MIPI wiring structure provided in Example 1 or 2 is further optimized. Specifically, the bottom of the window 11 is arc-shaped.

[0051] The working mode of this embodiment is described below.

[0052] Since the bottom of the window 11 is arc-shaped, when the EMI shielding film 5 is attached, it can prevent the EMI shielding film 5 from being damaged due to large-angle folding at the bottom of the window 11, thereby further improving the shielding effect of the EMI shielding film 5.

[0053] Example 4

[0054] The anti-interference display screen mipi wiring structure provided in Example 1 or 2 is further optimized. Specifically, the bottom of the window 11 is wavy.

[0055] The working mode of this embodiment is described below.

[0056] Since the bottom of the window 11 is wavy, when attaching the EMI shielding film 5, the EMI shielding film 5 can be prevented from being damaged due to large-angle folding at the bottom of the window 11, further improving the shielding effect of the EMI shielding film 5. At the same time, the wavy bottom can increase the contact area between the EMI shielding film 5 and the first GND line G1, reduce contact resistance, and reduce power consumption.

[0057] Example 5

[0058] The anti-interference display screen MIPI wiring structure provided in Example 1 or 2 is further optimized. Specifically, a conductive silver-plated layer 111 is provided at the bottom of the window 11.

[0059] It should be noted that the conductive silver-plated layer 111 is a vapor-deposited film.

[0060] In addition, the thickness of the conductive silver-plated layer 111 is 1 micrometer to 3 micrometers. Preferably, the thickness of the conductive silver-plated layer 111 is 2 micrometers.

[0061] The working mode of this embodiment is described below.

[0062] By using the conductive silver-plated layer 111 , the contact resistance between the EMI shielding film 5 and the first GND line G1 can be reduced, thereby further reducing power consumption.

[0063] The terms "coupling" and "coupling" involved in the embodiments of the present application should be understood in a broad sense. For example, they may refer to a direct physical connection, or an indirect connection achieved through electronic devices, such as a connection achieved through resistors, inductors, capacitors or other electronic devices.

[0064] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. An anti-interference display screen mipi wiring structure, characterized in that: The anti-interference display screen mipi wiring structure comprises a first insulating layer (1), a second insulating layer (2) and a third insulating layer (3), wherein the second insulating layer (2) is located below the first insulating layer (1), and the third insulating layer (3) is located below the second insulating layer (2); an EMI shielding film (5) is provided on the upper surface of the first insulating layer (1); windows (11) are provided on the left and right sides of the first insulating layer (1), and the EMI shielding film (5) completely covers the windows (11); a mipi circuit layer (4S) is provided between the first insulating layer (1) and the second insulating layer (2); the mipi circuit layer (4S) comprises a plurality of parallel mipi circuits (4); a second GND circuit (G2) is provided between adjacent mipi circuits (4); a first GND circuit (G1) is provided on the left and right sides of the mipi circuit (4); and a third GND circuit (G3) is provided in the third insulating layer (3).

2. The anti-interference display screen mipi wiring structure according to claim 1 is characterized in that: The opening (11) passes through the first insulating layer (1).

3. The anti-interference display screen mipi wiring structure according to claim 1 is characterized in that: The window (11) is rectangular.

4. The anti-interference display screen mipi wiring structure according to claim 1 is characterized in that: The bottom of the window (11) is in the shape of an inverted trapezoid.

5. The anti-interference display screen mipi wiring structure according to claim 1 is characterized in that: The bottom of the window (11) is arc-shaped.

6. The anti-interference display screen mipi wiring structure according to claim 1, characterized in that: The bottom of the window (11) is wavy.

7. The anti-interference display screen mipi wiring structure according to claim 1 is characterized in that: A conductive silver-plated layer (111) is provided at the bottom of the window (11).

8. The anti-interference display screen mipi wiring structure according to claim 7, characterized in that: The conductive silver-plated layer (111) is a vapor-deposited film.

9. The anti-interference display screen mipi wiring structure according to claim 7, characterized in that: The thickness of the conductive silver-plated layer (111) is 1 micrometer to 3 micrometers.

10. The anti-interference display screen mipi wiring structure according to claim 7, characterized in that: The thickness of the conductive silver-plated layer (111) is 2 micrometers.

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