Display module structure

Abstract

The embodiment of the utility model belongs to the technical field of display modules, and relates to a display module structure, which comprises a backlight iron stand main body and a PCB main body arranged on one surface of the backlight iron stand main body, a fixing mechanism is arranged between the backlight iron stand main body and the PCB main body, and the fixing mechanism comprises a first fixing part arranged on the backlight iron stand main body, a second fixing part is arranged between the first fixing part and the PCB main body, and the second fixing part is used for being matched with the first fixing part to limit the PCB main body and the backlight iron stand main body. According to the backlight iron stand, the first fixing part and the second fixing part are arranged, the second fixing part is used for being matched with the first fixing part to achieve limiting of the PCB main body and the backlight iron stand main body, and the second fixing part is detachably connected with the first fixing part and the PCB main body; and when the second fixing part is taken down, the limitation after the connection between the PCB main body and the backlight iron stand main body can be relieved, so that the PCB main body is separated from the backlight iron stand main body, and the repair is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, and more specifically, to a display module structure. Background Art

[0002] For LCD display modules with studs and PCB boards, the PCB boards are usually fixed to the backlight iron frame with conductive double-sided adhesive. In addition, the PCB is usually provided with through holes, and some studs will pass through the PCB through holes, which also plays a certain role in fixing the PCB. In order to ensure the firmness between the PCB and the backlight iron frame, the conductive double-sided adhesive is generally more viscous, but it increases the difficulty of rework.

[0003] For example, a Chinese patent (publication number CN216286080U) discloses a structure for fixing a PCB and a backlight, and its specification is disclosed in the backlight module of a liquid crystal display screen. A PCB board is usually used, especially an LED backlight module, and an LED chip is soldered on the PCB board to form a light source. At present, the common method of assembling a PCB board into a backlight module is to fix it by double-sided gluing, or by fixing it by screws, or by manually bending the backlight aluminum frame with tools to fix the PCB board. After fixing with double-sided gluing, it is difficult to repair and disassemble, and the PCB board is easily damaged during disassembly, and the original backlight cannot be reused due to damage to the double-sided gluing. The above patents can prove the defects of the prior art. Utility Model Content

[0004] The technical problem to be solved by the embodiments of the utility model is that the connection between the PCB and the backlight iron frame through conductive double-sided adhesive is not conducive to rework.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A display module structure includes a backlight iron frame body and a PCB body arranged on one side of the backlight iron frame body, a fixing mechanism is arranged between the backlight iron frame body and the PCB body, the fixing mechanism includes a first fixing part arranged on the backlight iron frame body, a second fixing part is arranged between the first fixing part and the PCB body, the second fixing part is used to cooperate with the first fixing part to achieve the limiting of the PCB body and the backlight iron frame body, and the second fixing part is detachably connected to the first fixing part and the PCB body. When the second fixing part is removed, the limiting of the connection between the PCB body and the backlight iron frame body can be released to separate the PCB body from the backlight iron frame body, thereby reducing the damage caused by the separation of the PCB body and the backlight iron frame body during the rework process, thereby facilitating the rework.

[0007] As an improved manner of the utility model, a through hole is opened on the PCB body, and the through hole is used for the first fixing part to pass through.

[0008] As an improved manner of the utility model, the first fixing portion includes a metal stud, one end of the metal stud is fixedly connected to the backlight iron frame body, and the other end of the metal stud passes through the PCB body.

[0009] As an improved manner of the present invention, the first fixing portion further comprises a limiting groove, and the limiting groove is arranged on the outer surface of the metal stud.

[0010] As an improvement of the present invention, the second fixing portion includes a bearing member detachably arranged on the metal stud, and a plurality of fixing members are arranged on the bearing member, and the fixing members are used to cooperate with the limiting groove and the bearing member to realize the limiting of the PCB body.

[0011] As an improved manner of the utility model, the carrier is a metal substrate, the metal substrate is located on a side of the PCB body away from the backlight iron frame body, and the metal stud passes through the metal substrate.

[0012] As an improved manner of the utility model, the fixing member includes a first elastic piece fixedly mounted on the metal base plate, and one end of the first elastic piece is plugged into the limiting groove.

[0013] As an improved manner of the utility model, the fixing member further comprises a second elastic piece mounted on the metal substrate, and the second elastic piece is located between the metal substrate and the first elastic piece.

[0014] As an improved approach of the present invention, the metal substrate, the first spring sheet and the second spring sheet are integrally arranged.

[0015] As an improvement of the utility model, a grounding copper drain is provided on the top of the PCB body, the grounding copper drain corresponds to the position of the through hole, and the bottom of the metal substrate contacts the top of the grounding copper drain.

[0016] Compared with the prior art, the embodiments of the present invention mainly have the following beneficial effects:

[0017] In order to solve the problem in the prior art that the conductive double-sided adhesive connection between the PCB and the backlight iron frame is not conducive to rework, the present application provides a first fixing part and a second fixing part. The second fixing part is used to cooperate with the first fixing part to achieve the limitation of the PCB body and the backlight iron frame body, and the second fixing part is detachably connected to the first fixing part and the PCB body. When the second fixing part is removed, the limitation on the connection between the PCB body and the backlight iron frame body can be released to separate the PCB body from the backlight iron frame body, thereby reducing the damage caused by the separation of the PCB body and the backlight iron frame body during the rework process, thereby facilitating rework. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1A schematic diagram of the structure of the display module provided in this application;

[0019] Figure 2 The display module structure provided in this application Figure 1 Exploded diagram of

[0020] Figure 3 A schematic structural diagram of a second fixing portion of a display module structure provided in the present application;

[0021] Figure 4 The display module structure provided in this application Figure 1 A side view structural schematic diagram of;

[0022] Figure 5 This is a schematic cross-sectional structure diagram of the PCB body of the display module structure provided in this application.

[0023] Indicated in the figure:

[0024] 1. Backlight iron frame body; 2. PCB body; 201. Through hole; 202. Ground leakage copper; 3. Metal stud; 301. Limiting groove; 4. Metal substrate; 401. First spring piece; 402. Second spring piece. 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, the LCD display module with studs and PCB boards is generally fixed to the backlight iron frame by conductive double-sided adhesive. In addition, the PCB is generally provided with through holes, and some studs will pass through the PCB through holes, which also plays a certain role in fixing the PCB. In order to ensure the firmness between the PCB and the backlight iron frame, the conductive double-sided adhesive is generally strong, but it increases the difficulty of rework.

[0027] In order to solve this technical problem, the utility model provides a display module structure.

[0028] Specifically, please refer to Figure 1-Figure 5 , the display module structure specifically includes:

[0029] A backlight iron frame body 1 and a PCB body 2 arranged on one side of the backlight iron frame body 1, a fixing mechanism is arranged between the backlight iron frame body 1 and the PCB body 2, the fixing mechanism includes a first fixing part arranged on the backlight iron frame body 1, a second fixing part is arranged between the first fixing part and the PCB body 2, the second fixing part is used to cooperate with the first fixing part to realize the limiting of the PCB body 2 and the backlight iron frame body 1, and the second fixing part is detachably connected to the first fixing part and the PCB body 2.

[0030] The display module structure provided by the utility model is provided with a first fixing part and a second fixing part. The second fixing part is used to cooperate with the first fixing part to realize the limitation of the PCB body 2 and the backlight iron frame body 1, and the second fixing part is detachably connected to the first fixing part and the PCB body 2. When the second fixing part is removed, the limitation of the connection between the PCB body 2 and the backlight iron frame body 1 can be released to separate the PCB body 2 from the backlight iron frame body 1, thereby reducing the damage caused by the separation of the PCB body 2 and the backlight iron frame body 1 during the rework process, thereby facilitating rework.

[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 display module structure of the utility model

[0035] like Figure 1-Figure 5 As shown, the display module structure of the utility model includes: a backlight iron frame body 1 and a PCB body 2 arranged on one side of the backlight iron frame body 1, a fixing mechanism is arranged between the backlight iron frame body 1 and the PCB body 2, the fixing mechanism includes a first fixing part arranged on the backlight iron frame body 1, a second fixing part is arranged between the first fixing part and the PCB body 2, the second fixing part is used to cooperate with the first fixing part to realize the limiting of the PCB body 2 and the backlight iron frame body 1, and the second fixing part is detachably connected to the first fixing part and the PCB body 2, that is, when the second fixing part is removed, the limiting of the connection between the PCB body 2 and the backlight iron frame body 1 can be released, so as to separate the PCB body 2 from the backlight iron frame body 1, reduce the damage caused by the separation of the PCB body 2 and the backlight iron frame body 1 during the rework process, and thus facilitate rework.

[0036] Further, such as Figure 2 As shown, a through hole 201 is provided on the PCB body 2, and the through hole 201 is for the first fixing part to pass through. After the first fixing part passes through the through hole 201, the PCB body 2 is limited under the action of the second fixing part;

[0037] PCB is the abbreviation of printed circuit board (Printed Circuit Board). Usually, the conductive pattern made of printed circuits, printed components or a combination of the two on the insulating material according to the predetermined design is called a printed circuit, and the conductive pattern that provides electrical connection between components on the insulating substrate is called a printed circuit. In this way, the finished board of printed circuits or printed circuits is called a printed circuit board, also known as a printed board or printed circuit board; in the display module, PCB carries important circuits such as control circuits and drive circuits, and works with backlight modules, display panels and other components to realize image display and control. Therefore, the quality and performance of PCB have an important impact on the overall performance of the display module;

[0038] The backlight module plays a vital role in the display module. Specifically, the backlight module provides the key backlight function for the liquid crystal display module. Since the liquid crystal itself does not emit light, an external light source is required to illuminate the liquid crystal panel so that it can display images normally. The role of the backlight module is to provide such a sufficient and evenly distributed light source; the backlight module is generally composed of a backlight light source, a multi-layer backlight material and a supporting frame. Among them, the backlight light source is the core part that emits light. Common light source types include cold cathode fluorescent lamps CCFL and LEDs. The light emitted by these light sources is adjusted by the light-transmitting module and the reflective module to ensure that the light can be evenly irradiated to the back of the liquid crystal display, thereby improving the display effect.

[0039] The metal stud 3 is a supporting frame. As a structural supporting component of the backlight module, the metal stud 3 mainly assembles and supports other components of the backlight module to ensure that these components can be firmly combined together to form a complete backlight module. This structural supporting function ensures the stability and reliability of the backlight module during operation.

[0040] Embodiment 2 of the display module structure of the utility model

[0041] like Figure 1 , Figure 2 and Figure 5 As shown, the display module structure of the utility model is further provided, the first fixing part includes a metal stud 3, one end of the metal stud 3 is fixedly connected to the backlight iron frame body 1, the other end of the metal stud 3 passes through the PCB body 2, and the metal stud 3 can cooperate with the second fixing part to limit the position of the PCB body 2;

[0042] The metal stud 3 is usually composed of a cylindrical rod body and parts with threads at both ends, and is used to fix the display module to the customer host.

[0043] Further, such as Figure 1 , Figure 3 and Figure 5 As shown, the first fixing portion further includes a limiting groove 301 , and the limiting groove 301 is provided on the outer surface of the metal stud 3 .

[0044] Furthermore, the second fixing part includes a carrier that is detachably arranged on the metal stud 3, and a plurality of fixing parts are arranged on the carrier. The fixing parts are used to cooperate with the limiting groove 301 and the carrier to realize the limitation of the PCB body 2, thereby reducing and improving the stability of the connection between the PCB body 2 and the backlight iron frame body 1. Since the traditional conductive double-sided tape is eliminated, the damage to the backlight iron frame body 1 or the PCB body 2 can be reduced during rework.

[0045] Further, such as Figure 1-Figure 5 As shown, the carrier is a metal substrate 4 , which is located on a side of the PCB body 2 away from the backlight iron frame body 1 , and the metal stud 3 passes through the metal substrate 4 .

[0046] Further, such as Figure 1-Figure 5 As shown, the fixing member includes a first spring piece 401 fixedly mounted on the metal substrate 4, one end of the first spring piece 401 is plugged into the limiting groove 301, and the first spring piece 401, the second spring piece 402 and the limiting groove 301 cooperate with each other to press the PCB body 2 to fix the PCB body 2.

[0047] Further, such as Figure 1-Figure 5 As shown, the fixing member further includes a second spring 402 mounted on the metal substrate 4, the second spring 402 is located between the metal substrate 4 and the first spring 401, the second spring 402 is inserted into the first spring 401 after the limiting groove 301 to support the first spring 401;

[0048] The metal stud 3 not only serves as a fixed connection, but also realizes the precise limitation of the position of the PCB body 2 through the cooperation between the limiting groove 301 and the second fixing part. At the same time, the design of the detachable carrier and the fixing part thereon not only improves the stability of the connection, but also reduces the use of traditional conductive double-sided tape, thereby reducing the risk of damage to the backlight iron frame 1 or the PCB body 2 during repair. In addition, the cooperation of the metal substrate 4, the first spring clip 401 and the second spring clip 402 makes the fixation more firm and reliable.

[0049] Embodiment 3 of the display module structure of the utility model

[0050] The display module structure of the present invention is further characterized in that the metal substrate 4 , the first spring sheet 401 and the second spring sheet 402 are integrally arranged, thereby improving the firmness among the metal substrate 4 , the first spring sheet 401 and the second spring sheet 402 .

[0051] Further, such as Figure 4-Figure 5 As shown, a grounding copper drain 202 is arranged on the top of the PCB body 2, and the grounding copper drain 202 corresponds to the position of the through hole 201, and the bottom of the metal substrate 4 contacts the top of the grounding copper drain 202; the integrated arrangement of the metal substrate 4, the first spring 401 and the second spring 402 not only improves the firmness between them, but also simplifies the manufacturing and assembly process. At the same time, the arrangement of the grounding copper drain 202 enables the metal substrate 4 to form a good electrical connection with the PCB body 2, thereby improving the electrical performance of the display module. In addition, the grounding copper drain 202 corresponds to the position of the through hole 201, ensuring the accuracy and stability of the connection.

[0052] During installation, the PCB body 2 is fitted with the backlight iron frame body 1, and the metal stud 3 is passed through the through hole 201, the metal substrate 4 is mounted on the outer surface of the metal stud 3, and the metal substrate 4 is pressed downward so that the first spring piece 401 is squeezed and expands outward. When the position of the first spring piece 401 corresponds to the position of the limiting groove 301, the first spring piece 401 is pressed downward so that the first spring piece 401 is inserted into the limiting groove 301. At this time, the second spring piece 402 supports the first spring piece 401, that is, the metal substrate 4, the first spring piece 401, the second spring piece 402, the limiting groove 301 and the metal stud 3 cooperate with each other to limit the PCB body 2;

[0053] During disassembly, the first spring piece 401 is bent outward to separate the first spring piece 401 from the limiting groove 301 , and then the metal substrate 4 is pulled away from the PCB body 2 to remove the metal substrate 4 .

[0054] 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. A display module structure, comprising a backlight iron frame body (1) and a PCB body (2) arranged on one side of the backlight iron frame body (1), characterized in that: A fixing mechanism is arranged between the backlight iron frame body (1) and the PCB body (2), the fixing mechanism comprising a first fixing portion arranged on the backlight iron frame body (1), a second fixing portion arranged between the first fixing portion and the PCB body (2), the second fixing portion being used to cooperate with the first fixing portion to achieve position limiting of the PCB body (2) and the backlight iron frame body (1), and the second fixing portion is detachably connected to the first fixing portion and the PCB body (2).

2. The display module structure according to claim 1, characterized in that: The PCB body (2) is provided with a through hole (201), and the through hole (201) is used for the first fixing part to pass through.

3. The display module structure according to claim 2, characterized in that: The first fixing portion comprises a metal stud (3), one end of the metal stud (3) is fixedly connected to the backlight iron frame body (1), and the other end of the metal stud (3) passes through the PCB body (2).

4. The display module structure according to claim 3, characterized in that: The first fixing portion further comprises a limiting groove (301), wherein the limiting groove (301) is formed on the outer surface of the metal stud (3).

5. The display module structure according to claim 4, characterized in that: The second fixing portion comprises a bearing member detachably arranged on the metal stud (3), and a plurality of fixing members are arranged on the bearing member, and the fixing members are used to cooperate with the limiting groove (301) and the bearing member to achieve the limiting of the PCB body (2).

6. The display module structure according to claim 5, characterized in that: The carrier is a metal substrate (4), the metal substrate (4) is located on a side of the PCB body (2) away from the backlight iron frame body (1), and the metal stud (3) passes through the metal substrate (4).

7. The display module structure according to claim 6, characterized in that: The fixing member comprises a first spring piece (401) fixedly mounted on the metal base plate (4), and one end of the first spring piece (401) is plugged into the limiting groove (301).

8. The display module structure according to claim 7, characterized in that: The fixing member further comprises a second elastic sheet (402) mounted on the metal substrate (4), wherein the second elastic sheet (402) is located between the metal substrate (4) and the first elastic sheet (401).

9. The display module structure according to claim 8, characterized in that: The metal substrate (4), the first spring sheet (401) and the second spring sheet (402) are integrally arranged.

10. The display module structure according to claim 9, characterized in that: A grounding copper drain (202) is provided on the top of the PCB body (2), the grounding copper drain (202) corresponds to the position of the through hole (201), and the bottom of the metal substrate (4) is in contact with the top of the grounding copper drain (202).

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