Electrostatic discharge structure

Abstract

The embodiment of the utility model belongs to the technical field of electrostatic discharge. The utility model also relates to an electrostatic discharge structure, which comprises an FPC main body and a display panel connected with the FPC main body, the FPC main body is provided with an FPC independent grounding sheet, a packaging layer of the FPC main body is provided with a window corresponding to the FPC independent grounding sheet, and the window is provided with a first conductive connecting piece. The FPC bonding pad and the FPC independent grounding piece are connected together through the first ITO, the FPC independent grounding piece is an independent area, static electricity can be released on the FPC independent grounding piece preferentially, the FPC independent grounding piece is connected with the FPC reinforcing plate through the first conductive connecting piece, the FPC reinforcing plate is connected with the back face of the display panel through the second conductive connecting piece, and therefore static electricity can be released on the FPC independent grounding piece preferentially. Therefore, static electricity on the FPC independent grounding piece is released through the FPC reinforcing plate, the second conductive double-faced adhesive tape and the backlight iron stand on the back face of the display panel, and the static electricity cannot affect other signals on the FPC body in the release process.

Description

Technical Field

[0001] The utility model relates to the technical field of electrostatic release, and more specifically, to an electrostatic release structure. Background Art

[0002] With the continuous development of display technology, IPS (In-Plane Switching) TFT (Thin Film Transistor) display panels are widely used in various electronic products due to their excellent viewing angle characteristics and color expression. However, due to the horizontal distribution of pixel electrodes and common VCOM electrodes, IPS TFT display panels are highly sensitive to external static electricity. The accumulation of static electricity may not only damage the display panel, but also have an adverse effect on the signal on the flexible printed circuit (FPC) connected to it, resulting in display abnormality or equipment failure.

[0003] In order to reduce the impact of static electricity on display panels and FPCs, the industry usually adopts a grounded ITO (Indium Tin Oxide) film on the surface of the display panel glass as a shielding layer. This shielding layer can effectively introduce static electricity into the FPC through the ITO wire, and then release it to the external environment through the FPC's grounding system. However, in actual applications, static electricity may interfere with other signals on the FPC during the process of being introduced into the FPC, affecting the normal operation of the device. Therefore, we have made improvements to this and proposed an electrostatic release structure.

[0004] For example, a Chinese patent (Announcement No. CN215526291U) discloses an anti-static display module, and its specification discloses: At present, most types of liquid crystal display screens need to release static electricity by applying conductive silver paste, which is connected to the color film substrate high resistance film or AS polarizer of the liquid crystal screen, and then connected to the ground position of the array substrate to avoid poor display caused by static electricity when the liquid crystal screen displays. However, the anti-static effect in the traditional structure is not very reasonable. The above patents can prove the defects of the existing technology. Utility Model Content

[0005] The technical problem to be solved by the embodiments of the present utility model is that static electricity may interfere with other signals on the FPC during the process of being introduced into the FPC, thereby affecting the normal operation of the device.

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

[0007] An electrostatic release structure, comprising: an FPC body and a display panel connected to the FPC body, the FPC body having an independent FPC grounding sheet, and a window corresponding to the independent FPC grounding sheet is provided on the packaging layer of the FPC body, and a first conductive connector is provided at the window, the first conductive connector is connected to an FPC reinforcement plate, and the FPC reinforcement plate is connected to a second conductive connector, the second conductive connector is used to adhere to the back of the display panel after the FPC body is bent, the FPC body also has a plurality of FPC pads connected to the display panel, and a grounding pad among the plurality of FPC pads is provided between the independent FPC grounding sheet. There is a first ITO, and the present application connects the FPC pad and the FPC independent grounding sheet together through the first ITO, and the FPC independent grounding sheet is an independent area, so that static electricity can be released preferentially on the FPC independent grounding sheet. Since the FPC independent grounding sheet is connected to the FPC reinforcement plate through the first conductive connector, and the FPC reinforcement plate is connected to the back of the display panel through the second conductive connector, the static electricity on the FPC independent grounding sheet is released through the FPC reinforcement plate, the second conductive double-sided tape and the backlight iron frame on the back of the display panel, so that the static electricity will not affect other signals on the FPC body during the release process, thereby ensuring the normal operation of the equipment.

[0008] As an improvement of the utility model, the first conductive connecting member is a first conductive double-sided adhesive, the first conductive double-sided adhesive is located in a window on the FPC independent grounding sheet, and the first conductive double-sided adhesive is connected between the FPC independent grounding sheet and the FPC reinforcement plate. There is no electrical connection between the first conductive double-sided adhesive and other layers of the FPC body, so that the first conductive double-sided adhesive is set as an independent routing, which can reduce the impact of static electricity on the first conductive double-sided adhesive on the FPC body.

[0009] As an improvement of the utility model, the second conductive connecting member is a second conductive double-sided tape, which is adhered to the side of the FPC reinforcement plate away from the first conductive double-sided tape, and the second conductive double-sided tape is used to adhere to the back of the display panel after the FPC body is bent.

[0010] As an improved manner of the utility model, a plurality of FPC gold fingers are also arranged on the FPC body.

[0011] As an improved approach of the utility model, the FPC reinforcing plate is made of conductive material.

[0012] As an improved manner of the utility model, the display panel includes a display module and a backlight module, and the backlight module provides a light source for the display module.

[0013] As an improved manner of the utility model, the backlight module has a backlight iron frame, and the second conductive double-sided adhesive is connected to the backlight iron frame.

[0014] As an improved manner of the utility model, a plurality of module pads are arranged on the display module, and the plurality of module pads are respectively connected to a plurality of FPC pads.

[0015] As an improved manner of the present invention, a second ITO is further provided on the display module, and the second ITO is connected to a ground pad among a plurality of module pads.

[0016] As an improved manner of the utility model, ground pads among a plurality of FPC pads cooperate with ground pads among a plurality of module pads to realize the connection between the second ITO and the first ITO.

[0017] Compared with the prior art, the embodiments of the present invention mainly have the following beneficial effects:

[0018] In order to solve the problem in the prior art that static electricity may interfere with other signals on the FPC during the process of being introduced into the FPC, thereby affecting the normal operation of the device, the present application connects the FPC pad and the FPC independent grounding plate together through a first ITO, and the FPC independent grounding plate is an independent area, so that static electricity can be released preferentially on the FPC independent grounding plate. Since the FPC independent grounding plate is connected to the FPC reinforcement plate through a first conductive connector, and the FPC reinforcement plate is connected to the back of the display panel through a second conductive connector, the static electricity on the FPC independent grounding plate is released through the FPC reinforcement plate, the second conductive double-sided tape and the backlight iron frame on the back of the display panel, so that the static electricity will not affect other signals on the FPC body during the release process, thereby ensuring the normal operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of the electrostatic release structure provided in this application;

[0020] Figure 2 A schematic diagram of a local structure in which a display panel of the electrostatic release structure provided in the present application is separated from an FPC body;

[0021] Figure 3 A schematic diagram of the structure of the back side of the FPC body of the electrostatic release structure provided in this application;

[0022] Figure 4 A schematic structural diagram of the second conductive double-sided adhesive of the electrostatic release structure provided in this application.

[0023] Indicated in the figure:

[0024] 1. FPC body; 101. FPC independent grounding plate; 103. first conductive double-sided tape; 104. FPC pad; 105. first ITO; 106. FPC gold finger; 2. FPC reinforcement plate; 3. second conductive double-sided tape; 4. display panel; 401. module pad; 402. second ITO. DETAILED DESCRIPTION

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention belongs; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Reference to "embodiments" herein means that specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] As described in the background technology, in order to reduce the impact of static electricity on the display panel and FPC, the industry usually adopts the method of coating a grounded ITO (Indium Tin Oxide) film on the surface of the display panel glass as a shielding layer. This shielding layer can effectively introduce static electricity into the FPC through the ITO wire, and then release it to the external environment through the grounding system of the FPC. However, in actual applications, static electricity may interfere with other signals on the FPC during the process of being introduced into the FPC, affecting the normal operation of the equipment.

[0027] In order to solve this technical problem, the utility model provides a static electricity release structure.

[0028] Specifically, please refer to Figure 1-Figure 4 , the electrostatic release structure specifically includes:

[0029] The FPC body 1 and the display panel 4 connected to the FPC body 1, the FPC body 1 has an independent FPC grounding plate 101, and a window corresponding to the independent FPC grounding plate 101 is opened on the packaging layer of the FPC body 1, and a first conductive connector is arranged at the window, the first conductive connector is connected to the FPC reinforcement plate 2, and the FPC reinforcement plate 2 is connected to the second conductive connector, the second conductive connector is used to adhere to the back side of the display panel 4 after the FPC body 1 is bent, the FPC body 1 also has a plurality of FPC pads 104 connected to the display panel 4, and a first ITO 105 is arranged between the grounding pad among the plurality of FPC pads 104 and the independent FPC grounding plate 101.

[0030] The utility model provides an electrostatic release structure, in which the FPC pad 104 is connected to the FPC independent grounding sheet 101 through the first ITO 105, and the FPC independent grounding sheet 101 is an independent area, so that static electricity can be released preferentially on the FPC independent grounding sheet 101. Since the FPC independent grounding sheet 101 is connected to the FPC reinforcement plate 2 through the first conductive connector, and the FPC reinforcement plate 2 is connected to the back of the display panel 4 through the second conductive connector, the static electricity on the FPC independent grounding sheet 101 is released through the FPC reinforcement plate 2, the second conductive double-sided adhesive 3 and the backlight iron frame on the back of the display panel 4, so that the static electricity will not affect other signals on the FPC body 1 during the release process, thereby ensuring the normal operation of the device.

[0031] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0032] 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.

[0033] 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.

[0034] Embodiment 1 of the electrostatic discharge structure of the utility model

[0035] Please refer to Figure 1-Figure 4The utility model electrostatic release structure includes: an FPC body 1 and a display panel 4 connected to the FPC body 1, the FPC body 1 has an FPC independent grounding plate 101, and a window corresponding to the FPC independent grounding plate 101 is opened on the packaging layer of the FPC body 1, and a first conductive connector is arranged at the window, the first conductive connector is connected to the FPC reinforcement plate 2, and the FPC reinforcement plate 2 is connected to the second conductive connector, and the second conductive connector is used to adhere to the back of the display panel 4 after the FPC body 1 is bent, the FPC body 1 also has a plurality of FPC pads 104 connected to the display panel 4, and a first IT is arranged between the grounding pads among the plurality of FPC pads 104 and the FPC independent grounding plate 101. O105, the present application connects the FPC pad 104 and the FPC independent grounding sheet 101 together through the first ITO105, and the FPC independent grounding sheet 101 is an independent area, so that static electricity can be released preferentially on the FPC independent grounding sheet 101. Since the FPC independent grounding sheet 101 is connected to the FPC reinforcement plate 2 through the first conductive connector, and the FPC reinforcement plate 2 is connected to the back of the display panel 4 through the second conductive connector, the static electricity on the FPC independent grounding sheet 101 is released through the FPC reinforcement plate 2, the second conductive double-sided tape 3 and the backlight iron frame on the back of the display panel 4, so that the static electricity will not affect other signals on the FPC body 1 during the release process, thereby ensuring the normal operation of the equipment.

[0036] Further, such as Figure 1 , Figure 2 and Figure 4 As shown, the first conductive connecting member is a first conductive double-sided adhesive 103, which is located in a window on the FPC independent grounding plate 101, and the first conductive double-sided adhesive 103 is connected between the FPC independent grounding plate 101 and the FPC reinforcement plate 2. There is no electrical connection between the first conductive double-sided adhesive 103 and other layers of the FPC main body 1, so that the first conductive double-sided adhesive 103 is an independent routing setting, which can reduce the influence of static electricity on the first conductive double-sided adhesive 103 on the FPC main body 1.

[0037] Further, such as Figure 4 As shown, the second conductive connecting member is a second conductive double-sided adhesive 3, which is pasted on the side of the FPC reinforcement plate 2 away from the first conductive double-sided adhesive 103, and the second conductive double-sided adhesive 3 is used to adhere to the back of the display panel 4 after the FPC body 1 is bent. Through the second conductive double-sided adhesive 3, the FPC reinforcement plate 2 can be pasted on the back of the display panel 4 after the FPC body 1 is bent, and the back of the display panel 4 is where the backlight iron frame is located, that is, the connection between the FPC reinforcement plate 2 and the backlight iron frame is realized to transfer static electricity to the backlight iron frame to realize the release of static electricity.

[0038] Embodiment 2 of the utility model electrostatic discharge structure

[0039] The utility model electrostatic release structure further includes: Figure 1 As shown, the FPC body 1 is also provided with a plurality of FPC gold fingers 106 , and the FPC gold fingers 106 are used in conjunction with the existing FPC connector.

[0040] Furthermore, the FPC reinforcing plate 2 is made of conductive material, such as stainless steel, so that static electricity can be conducted.

[0041] Furthermore, the display panel 4 includes a display module and a backlight module. The backlight module provides a light source for the display module. Both the backlight module and the display module are existing structures and will not be described in detail in this application.

[0042] Further, such as Figure 4 As shown, the backlight module has a backlight iron frame, the second conductive double-sided adhesive 3 is connected to the backlight iron frame, and the static electricity on the FPC body 1 is transferred to the backlight iron frame by the FPC reinforcement plate 2 and the second conductive double-sided adhesive 3 to achieve static electricity release.

[0043] Embodiment 3 of the electrostatic discharge structure of the utility model

[0044] The utility model electrostatic release structure further includes: Figure 1 and Figure 2 As shown, a plurality of module pads 401 are provided on the display module, and the plurality of module pads 401 are respectively connected to a plurality of FPC pads 104 . The cooperation between the module pads 401 and the FPC pads 104 can realize the connection between the FPC body 1 and the display module.

[0045] Further, such as Figure 1 As shown, a second ITO 402 is also provided on the display module, and the second ITO 402 is connected to a ground pad among several module pads 401. The static electricity on the display module is transferred to the FPC pad 104 by the second ITO 402 and the module pad 401, and then transferred to the FPC independent ground plate 101 by the FPC pad 104 and the first ITO 105.

[0046] Further, such as Figure 1 As shown, the ground pads in the plurality of FPC pads 104 cooperate with the ground pads in the plurality of module pads 401 to realize the connection between the second ITO 402 and the first ITO 105 .

[0047] When in use, the module pad 401 is connected to the FPC pad 104, and the static electricity of the display module is transferred to the module pad 401 by the second ITO 402, and then transferred to the FPC independent grounding plate 101 by the FPC pad 104 and the first ITO 105. The FPC independent grounding plate 101 transfers the static electricity to the FPC reinforcement plate 2 through the first conductive double-sided tape 103, and then the static electricity on the FPC reinforcement plate 2 is transferred to the backlight iron frame of the display panel 4 by the second conductive double-sided tape 3 to achieve the release of static electricity.

[0048] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model 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 utility model more thorough and comprehensive. Although the utility model 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 utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. An electrostatic release structure, characterized in that: include: An FPC body (1) and a display panel (4) connected to the FPC body (1), wherein the FPC body (1) has an independent FPC grounding sheet (101), and a window corresponding to the independent FPC grounding sheet (101) is provided on the packaging layer of the FPC body (1), and a first conductive connecting member is provided at the window, the first conductive connecting member is connected to an FPC reinforcing plate (2), and the FPC reinforcing plate (2) is connected to a second conductive connecting member, and the second conductive connecting member is used to adhere to the back surface of the display panel (4) after the FPC body (1) is bent, and the FPC body (1) also has a plurality of FPC pads (104) connected to the display panel (4), and a first ITO (105) is provided between a grounding pad among the plurality of FPC pads (104) and the independent FPC grounding sheet (101).

2. The electrostatic release structure according to claim 1, characterized in that: The first conductive connecting member is a first conductive double-sided adhesive tape (103), the first conductive double-sided adhesive tape (103) is located in a window on the FPC independent grounding sheet (101), and the first conductive double-sided adhesive tape (103) is connected between the FPC independent grounding sheet (101) and the FPC reinforcing plate (2).

3. The electrostatic release structure according to claim 2, characterized in that: The second conductive connecting member is a second conductive double-sided adhesive tape (3), the second conductive double-sided adhesive tape (3) is adhered to a side of the FPC reinforcement plate (2) away from the first conductive double-sided adhesive tape (103), and the second conductive double-sided adhesive tape (3) is used to adhere to the back side of the display panel (4) after the FPC body (1) is bent.

4. The electrostatic release structure according to claim 3, characterized in that: A plurality of FPC gold fingers (106) are also provided on the FPC body (1).

5. The electrostatic release structure according to claim 4, characterized in that: The FPC reinforcing plate (2) is made of conductive material.

6. The electrostatic release structure according to claim 5, characterized in that: The display panel (4) comprises a display module and a backlight module, and the backlight module provides a light source for the display module.

7. The electrostatic release structure according to claim 6, characterized in that: The backlight module comprises a backlight iron frame, and the second conductive double-sided adhesive (3) is connected to the backlight iron frame.

8. The electrostatic release structure according to claim 7, characterized in that: A plurality of module pads (401) are provided on the display module, and the plurality of module pads (401) are respectively connected to a plurality of FPC pads (104).

9. The electrostatic release structure according to claim 8, characterized in that: A second ITO (402) is also provided on the display module, and the second ITO (402) is connected to a ground pad among the plurality of module pads (401).

10. The electrostatic release structure according to claim 9, characterized in that: A grounding pad among the plurality of FPC pads (104) cooperates with a grounding pad among the plurality of module pads (401) to achieve connection between the second ITO (402) and the first ITO (105).

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