Display screen module FPC matched ferrite magnetic ring structure

Abstract

The utility model discloses a display screen module FPC (Flexible Printed Circuit) matched ferrite magnetic ring structure, which comprises a display screen module, a display screen FPC, a display screen PCB (Printed Circuit Board) and an anti-interference magnetic ring, the display screen PCB and the anti-interference magnetic ring are arranged on the back surface of the display screen module, one end of the display screen FPC is connected with the display screen module, the other end of the display screen FPC is connected with the display screen PCB, and the ferrite magnetic ring is connected with the anti-interference magnetic ring. The anti-interference magnetic ring is arranged on the outer surface of the display screen FPC in a sleeving manner, and the anti-interference magnetic ring is used for inhibiting interference of electromagnetism on a signal line of the display screen FPC. According to the display screen module FPC matched ferrite magnetic ring structure provided by the utility model, the display screen module is connected with the display screen module through the display screen FPC, the anti-interference magnetic ring is sleeved on the display screen FPC, signals on the display screen FPC can be absorbed by the anti-interference magnetic ring when being transmitted through the display screen FPC, and meanwhile, the anti-interference magnetic ring is sleeved at one end close to the display screen FPC, so that the anti-interference magnetic ring can be absorbed by the display screen FPC. And the signal transmitted by the display screen FPC is absorbed once entering the display screen FPC, so that a better display effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to display screen module FPC anti -interference technical field especially relates to a kind of display screen module FPC collate ferrite magnetic ring structure. BACKGROUND

[0002] In recent years, with the development of economy and the improvement of people's living standards, people's consumption demand for mobile phones is increasing, and the upgrading frequency of mobile phones is also increasing, and major mobile phone brands will release new flagship phones almost every year. As one of the most important components of mobile phones, the stability and reliability of liquid crystal display module display effect are more and more concerned by major mobile phone manufacturers and consumers, and electromagnetic interference is a common phenomenon in mobile phone design. In addition to the mainboard layout, the display screen PCB is directly connected with the LCD module through FPC, and the signal transmitted by FPC will be disturbed by electromagnetic signal, which will cause the display screen module to fail to achieve the expected display effect. UTILITY MODEL CONTENT

[0003] Therefore, it is necessary to provide a display screen module FPC collate ferrite magnetic ring structure, which is provided with an anti-interference magnetic ring on the display screen FPC. When the signal on the display screen FPC is transmitted through the display screen FPC, it can be absorbed by the anti-interference magnetic ring. At the same time, the anti-interference magnetic ring is sleeved on one end close to the display screen FPC, so that the signal transmitted by the display screen FPC is absorbed as soon as it enters the display screen FPC, thereby achieving better display effect.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A display screen module FPC collate ferrite magnetic ring structure, comprising:

[0006] A display screen module, a display screen FPC, a display screen PCB mounted on the back of the display screen module, and an anti-interference magnetic ring, one end of the display screen FPC is connected with the display screen module, the other end of the display screen FPC is connected with the display screen PCB, the anti-interference magnetic ring is sleeved on the outer surface of the display screen FPC, and the anti-interference magnetic ring is used to suppress the interference of electromagnetic on the signal line of the display screen FPC.

[0007] Further, the anti-interference magnetic ring is a ferrite magnetic ring, and the anti-interference magnetic ring is sleeved on one end close to the display screen FPC.

[0008] Further, it further comprises a backlight cable, and the backlight cable is connected with the display screen PCB.

[0009] Further, the front surface of the anti-interference magnetic ring is fixedly connected with the back surface of the display screen module through adhesive.

[0010] Further, the anti-interference magnetic ring is a nickel-zinc ferrite magnetic ring, which is used for inhibiting electromagnetic interference in a high frequency band.

[0011] Further, the anti-interference magnetic ring comprises an upper ring and a lower ring, the back adhesive is fixedly connected to the lower surface of the lower ring, and the upper ring is detachably connected with the lower ring.

[0012] Further, the upper surface of the lower ring is provided with a groove, the display screen FPC is located in the groove, the left and right sides of the upper surface of the lower ring are respectively provided with a positioning hole and a threaded hole, the left side of the lower surface of the upper ring is fixedly connected with a positioning column, the positioning column is located in the positioning hole, the right side of the upper ring is provided with a stepped hole, and a screw is arranged in the stepped hole and is in threaded connection with the threaded hole.

[0013] Further, the display screen FPC comprises a base layer, shielding layers are fixedly connected to the upper and lower sides of the base layer, and the shielding layers are used for inhibiting electromagnetic interference on the signal lines of the display screen FPC.

[0014] Further, the shielding layers are composed of high-temperature silica gel and magnetic powder, and the magnetic powder is uniformly distributed in the high-temperature silica gel.

[0015] Further, the shielding layers are in a mesh structure and are provided with a plurality of heat dissipation holes.

[0016] Compared with the prior art, the display screen module FPC provided by the anti-interference magnetic ring structure has the following beneficial effects:

[0017] The display screen module FPC provided by the anti-interference magnetic ring structure is detachably connected with the display screen PCB, the anti-interference magnetic ring is composed of an upper ring and a lower ring, the upper ring and the lower ring are combined into a complete magnetic ring through cooperation between the positioning column, the positioning hole and the screw, the upper ring and the lower ring can be completely separated when the display screen FPC is detached from the display screen PCB, the display screen FPC is convenient to detach, and thus the display screen module is convenient to maintain.

[0018] The display screen module FPC provided by the anti-interference magnetic ring structure is detachably connected with the display screen PCB, the anti-interference magnetic ring is composed of an upper ring and a lower ring, the upper ring and the lower ring are combined into a complete magnetic ring through cooperation between the positioning column, the positioning hole and the screw, the upper ring and the lower ring can be completely separated when the display screen FPC is detached from the display screen PCB, the display screen FPC is convenient to detach, and thus the display screen module is convenient to maintain.

[0019] The display screen module FPC is matched with the ferrite magnetic ring structure, the display screen module is connected with the display screen module FPC, the anti-interference magnetic ring is sleeved on the display screen FPC, the signal on the display screen FPC can be absorbed by the anti-interference magnetic ring when being transmitted through the display screen FPC, meanwhile, the anti-interference magnetic ring is sleeved on the end close to the display screen FPC, the signal transmitted by the display screen FPC is absorbed as soon as entering the display screen FPC, so that better display effect is achieved, and the structure is simple, and the occupied space is small. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a front view structural schematic diagram of the display screen module FPC matched with the ferrite magnetic ring structure provided by the utility model;

[0021] Figure 2 It is a left view schematic diagram of the display screen module FPC matched with the ferrite magnetic ring structure provided by the utility model;

[0022] Figure 3 It is a back adhesive bonding schematic diagram of the display screen module FPC matched with the ferrite magnetic ring structure provided by the utility model;

[0023] Figure 4 It is a section schematic diagram of the display screen FPC matched with the ferrite magnetic ring structure provided by the utility model;

[0024] Figure 5 It is a front view schematic diagram of the display screen FPC matched with the ferrite magnetic ring structure provided by the utility model.

[0025] Markings in the drawing are as follows:

[0026] 1, display screen module;2, display screen FPC;3, display screen PCB;4, anti-interference magnetic ring;5, back light cable;6, back adhesive;401, upper ring;402, lower ring;403, recess;404, positioning hole;405, screw hole;406, positioning column;407, step hole;408, screw;201, base layer;202, shielding layer;203, heat dissipation hole. DETAILED DESCRIPTION

[0027] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the utility model embodiment will be described clearly and completely in the following with the drawings in the utility model embodiment, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor should belong to the scope of the utility model protection.

[0028] As described in the background, the existing display screen PCB is directly connected with the LCD module through the FPC, and the signal transmitted by the FPC is interfered by electromagnetic signals, which causes the display screen module to fail to achieve the expected display effect.

[0029] To solve the technical problem, the display screen module FPC is matched with the ferrite magnetic ring structure, the anti-interference magnetic ring is sleeved on the display screen FPC, the signal on the display screen FPC can be absorbed by the anti-interference magnetic ring when the signal is transmitted through the display screen FPC, and the anti-interference magnetic ring is sleeved on the end close to the display screen FPC, so that the signal transmitted by the display screen FPC is absorbed as soon as the signal enters the display screen FPC, and better display effect is achieved.

[0030] Specifically, refer to Figures 1-5 The display screen module FPC matched with the ferrite magnetic ring structure specifically comprises:

[0031] The display screen module 1, the display screen FPC 2 and the display screen PCB 3 installed on the back of the display screen module 1, one end of the display screen FPC 2 is connected with the display screen module 1, and the other end of the display screen FPC 2 is connected with the display screen PCB 3;

[0032] The anti-interference magnetic ring 4 is sleeved on the outer surface of the display screen FPC 2, and the anti-interference magnetic ring 4 is used for inhibiting electromagnetic interference on the signal line of the display screen FPC 2.

[0033] The display screen module FPC matched with the ferrite magnetic ring structure provided by the utility model, the display screen module 1 is connected with the display screen module 1 through the display screen FPC 2, since the anti-interference magnetic ring 4 is sleeved on the display screen FPC 2, the signal on the display screen FPC 2 can be absorbed by the anti-interference magnetic ring 4 when the signal is transmitted through the display screen FPC 2, and the anti-interference magnetic ring 4 is sleeved on the end close to the display screen FPC 2, so that the signal transmitted by the display screen FPC 2 is absorbed as soon as the signal enters the display screen FPC 2, better display effect is achieved, and the structure is simple, and the occupied space is small.

[0034] In order to enable the personnel in the technical field to better understand the utility model scheme, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings.

[0035] It should be noted that the embodiments and the features and technical solutions in the embodiments in the utility model can be combined with each other without conflict.

[0036] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0037] Please refer to Figures 1-5A display module FPC matching ferrite magnetic ring structure, which comprises a display module 1, a display screen FPC 2 and a display screen PCB 3 mounted on the back of the display module 1, one end of the display screen FPC 2 is connected with the display module 1, and the other end of the display screen FPC 2 is connected with the display screen PCB 3;

[0038] An anti-interference magnetic ring 4 is sleeved on the outer surface of the display screen FPC 2, and the anti-interference magnetic ring 4 is used for inhibiting electromagnetic interference on the signal line of the display screen FPC 2.

[0039] Please refer to Figures 1-5 The display module 1 is connected with the display module 1 through the display screen FPC 2, since the anti-interference magnetic ring 4 is sleeved on the display screen FPC 2, the signal on the display screen FPC 2 can be absorbed by the anti-interference magnetic ring 4 when the signal is transmitted through the display screen FPC 2, and the anti-interference magnetic ring 4 is sleeved on the end close to the display screen FPC 2, so that the signal transmitted by the display screen FPC 2 is absorbed as soon as it enters the display screen FPC 2, thereby achieving better display effect, and the structure is simple and occupies small space.

[0040] The display module FPC matching ferrite magnetic ring structure provided in embodiment 1 is further optimized, specifically, as shown in Figure 1 and Figure 2 The anti-interference magnetic ring 4 is a ferrite magnetic ring, the anti-interference magnetic ring 4 is sleeved on the end close to the display screen FPC 2, and further comprises a backlight cable 5 connected with the display screen PCB 3.

[0041] Through the above structure design, the ferrite magnetic ring is a commonly used electromagnetic interference (EMI) suppression element, which mainly changes the characteristics of the magnetic ring to affect the current or signal passing through it to achieve the purpose of suppressing EMI, wherein the backlight cable 5 supplies power to the display screen PCB 3, and the signal on the display screen FPC 2 can be absorbed by the anti-interference magnetic ring 4 when the signal is transmitted through the display screen FPC 2;

[0042] The ferrite is a kind of material that uses high permeability material to infiltrate one or more magnesium, zinc, nickel and other metals and is burned at 2000°C, in the low frequency band, the ferrite anti-interference magnetic core presents very low inductive impedance value, which does not affect the transmission of useful signal on the data line or signal line, and in the high frequency band, the impedance increases from about 10MHz, the inductive component remains very small, and the resistive component rapidly increases, when high frequency energy passes through the magnetic material, the resistive component will convert these energy into heat and dissipate, thus forming a low-pass filter, so that the high frequency noise signal has great attenuation, and the impedance of the low frequency useful signal can be ignored, without affecting the normal work of the circuit.

[0043] The display module FPC matching ferrite magnetic ring structure provided in embodiment 1 or 2 is further optimized, as shown inFigure 1 And Figure 3 As shown in FIGS. 1 and 2, the front surface of the anti-interference magnetic ring 4 is fixedly connected to the back surface of the display screen module 1 through the back adhesive 6. The anti-interference magnetic ring 4 is a nickel-zinc ferrite magnetic ring, which is used to suppress electromagnetic interference in a high frequency band. In this way, the anti-interference magnetic ring 4 is fixedly connected to the display screen module 1, so as to avoid movement of the anti-interference magnetic ring 4. In addition, the anti-interference magnetic ring 4 is set as a nickel-zinc ferrite magnetic ring, so as to avoid interference of high-frequency signals on the display screen module 1 as much as possible.

[0044] In the above embodiments, the display screen module FPC is further optimized in combination with the ferrite magnetic ring structure, as shown in FIGS. 3 and 4. Figure 1 And Figure 3 As shown in FIGS. 5 and 6, the anti-interference magnetic ring 4 includes an upper ring 401 and a lower ring 402. The back adhesive 6 is fixedly connected to the lower surface of the lower ring 402. The upper ring 401 is detachably connected to the lower ring 402. The upper surface of the lower ring 402 is provided with a groove 403. The display screen FPC 2 is located in the groove 403. The left and right sides of the upper surface of the lower ring 402 are respectively provided with a positioning hole 404 and a threaded hole 405. The left side of the lower surface of the upper ring 401 is fixedly connected with a positioning column 406. The positioning column 406 is located in the positioning hole 404. The right side of the upper ring 401 is provided with a stepped hole 407. The stepped hole 407 is provided with a screw 408. The screw 408 is threadedly connected with the threaded hole 405.

[0045] In this structure, the anti-interference magnetic ring 4 is divided into the upper ring 401 and the lower ring 402. The upper ring 401 and the lower ring 402 are combined into a complete magnetic ring through cooperation between the positioning column 406, the positioning hole 404 and the screw 408. When the connection between the display screen FPC 2 and the display screen PCB 3 is detached, the upper ring 401 and the lower ring 402 can be completely separated, so as to facilitate detachment of the display screen FPC 2 and maintenance of the entire display screen module.

[0046] In the above embodiments, the display screen module FPC is further optimized in combination with the ferrite magnetic ring structure, as shown in FIGS. 3 and 4. Figure 1 And Figure 4 As shown in FIGS. 7 and 8, the display screen FPC 2 includes a base layer 201. The upper and lower sides of the base layer 201 are fixedly connected with shielding layers 202. The shielding layers 202 are used to suppress electromagnetic interference on the signal lines of the display screen FPC 2. The shielding layers 202 are composed of high-temperature silica gel and magnetic powder. The magnetic powder is uniformly distributed in the high-temperature silica gel. In this way, the display screen FPC 2 is provided with the shielding layers 202. The shielding layers 202 are composed of high-temperature silica gel and magnetic powder. Since the magnetic powder is uniformly distributed in the high-temperature silica gel, the display screen FPC 2 has good toughness under the condition of being relatively thin. In addition, the display screen FPC 2 has good electromagnetic shielding capability.

[0047] As shown in FIG. 9, Figure 5As shown, the shielding layer 202 is a mesh structure and is formed with a plurality of heat dissipation holes 203, so that the display screen FPC2 has good heat dissipation effect, effectively reduces high temperature aging, and prolongs the service life.

[0048] The use process of the display screen module FPC matched with the ferrite magnetic ring structure provided by the utility model is as follows:

[0049] The display screen module 1 is connected with the display screen module 1 through the display screen FPC2, since the anti-interference magnetic ring 4 is sleeved on the display screen FPC2, the anti-interference magnetic ring 4 is a ferrite magnetic ring, in a low frequency band, the ferrite anti-interference magnetic core presents very low inductive impedance value, and the transmission of useful signals on a data line or a signal line is not affected, and in a high frequency band, impedance increases from about 10MHz, the inductive component still remains very small, and the resistive component rapidly increases, when high-frequency energy passes through the magnetic material, the resistive component converts the energy into heat energy and dissipates, so that a low-pass filter is formed, high-frequency noise signals are greatly attenuated, and the impedance of low-frequency useful signals can be ignored, the normal work of a circuit is not affected, so that the signals on the display screen FPC2 can be absorbed by the anti-interference magnetic ring 4 when the signals are transmitted through the display screen FPC2, and the anti-interference magnetic ring 4 is sleeved on one end close to the display screen FPC2, so that the signals transmitted by the display screen FPC2 are absorbed as soon as the signals enter the display screen FPC2, thereby better display effect is achieved.

[0050] In the utility model, unless another definite provision and limitation, the terms "mount", "connect", "link", "fix" and the like terms should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be directly connected, also can be indirectly connected through intermediate medium, can be the communication of two elements or the interaction of two elements, unless another definite limitation. For ordinary skilled in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model in specific circumstances.

[0051] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments, and the preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or equivalently replace some of the technical features. Any equivalent structure made by using the content of the present application specification and drawings, directly or indirectly used in other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A display screen module FPC matching ferrite magnetic ring structure, characterized in that, It includes: Display screen module (1), display screen FPC (2) and display screen PCB (3) installed on the back of display screen module (1), one end of display screen FPC (2) is connected with display screen module (1), the other end of display screen FPC (2) is connected with display screen PCB (3); Anti-interference magnetic ring (4), the anti-interference magnetic ring (4) is sleeved on the outer surface of display screen FPC (2), the anti-interference magnetic ring (4) is used for inhibiting electromagnetic interference on display screen FPC (2) signal line; The anti-interference magnetic ring (4) includes upper ring (401) and lower ring (402), the back adhesive (6) is fixedly connected to the lower surface of the lower ring (402), and the upper ring (401) is detachably connected with the lower ring (402); The upper surface of the lower ring (402) is provided with a groove (403), the display screen FPC (2) is located in the groove (403), and the left and right sides of the upper surface of the lower ring (402) are respectively provided with a positioning hole (404) and a threaded hole (405), the left side of the lower surface of the upper ring (401) is fixedly connected with a positioning column (406), the positioning column (406) is located in the positioning hole (404), and the right side of the upper ring (401) is provided with a stepped hole (407), the stepped hole (407) is provided with a screw (408) in the inside, and the screw (408) is in threaded connection with the threaded hole (405).

2. The display screen module FPC ferrite ring structure of claim 1, wherein, The anti-interference magnetic ring (4) is a ferrite magnetic ring, and the anti-interference magnetic ring (4) is sleeved on one end close to the display screen FPC (2).

3. The display screen module FPC ferrite magnetic ring structure of claim 2, wherein, It also includes a backlight cable (5), the backlight cable (5) is connected with the display screen PCB (3).

4. The display screen module FPC ferrite ring structure of claim 3, wherein, The front surface of the anti-interference magnetic ring (4) is fixedly connected with the back surface of the display screen module (1) through the back adhesive (6).

5. The display screen module FPC ferrite magnetic ring structure of claim 4, wherein, The anti-interference magnetic ring (4) is a nickel-zinc ferrite magnetic ring, and the nickel-zinc ferrite magnetic ring is used for inhibiting high-frequency electromagnetic interference.

6. The display screen module FPC ferrite magnetic ring structure of claim 2, wherein, The display screen FPC (2) includes a base layer (201), the upper and lower sides of the base layer (201) are fixedly connected with shielding layers (202), and the shielding layers (202) are used for inhibiting electromagnetic interference on display screen FPC (2) signal line.

7. The display screen module FPC ferrite ring structure of claim 6, wherein, The shielding layer (202) is composed of high-temperature silica gel and magnetic powder, and the magnetic powder is uniformly distributed in the high-temperature silica gel.

8. The display screen module FPC ferrite magnetic ring structure of claim 7, wherein, The shielding layer (202) is a net structure and is formed with a plurality of heat dissipation holes (203).

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