Liquid crystal display (LCD) and printed circuit board (PCB) limited liquid crystal module (LCM)

Abstract

The utility model discloses an LCD and PCB (printed circuit board) limited LCM (liquid crystal module) and an LCD module. The PCB module is positioned on one side of the LCD module; the electronic component is positioned between the LCD module and the PCB module and is mounted on the PCB module; wherein the LCD module is connected with the PCB module through a metal clip PIN; the metal clamp PIN comprises a clamp head and a clamp tail, the clamp head is used for being connected to the corresponding LCD module, and the clamp tail is used for being connected to the PCB module and used for limiting the relative space distance between the LCD module and the PCB module. According to the LCM for limiting the LCD and the PCB provided by the utility model, a pin part of a conventional metal PIN is subjected to limiting design, so that when the pin part penetrates through the PCB module, a limiting effect is achieved through supporting and abutting between the limiting section and the PCB module, and therefore, the stability of a gap between the LCD module and the PCB module is ensured; therefore, the situation that the electronic components on the PCB module are in contact with the LCD module, so that the display has spots or the electronic components are easily damaged by ejection is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of LCM, in particular to an LCM for limiting the position of an LCD and a PCB. Background Art

[0002] LCM, or LCD display module, refers to a component that assembles liquid crystal display devices, connectors, peripheral circuits such as control and drive, PCB circuit boards, backlight sources, structural parts, etc.

[0003] Currently, conventional liquid crystal display screens are mainly composed of LCD, electronic components and PCB, wherein the electronic components are SMT on the PCB. After being assembled into a module, the electronic components are clamped between the LCD and the PCB, and the LCD is welded and fixed to the PCB through a metal clip PIN.

[0004] However, in the actual welding process, it should be noted that the LCD cannot contact the electronic components, that is, there must be a gap between the electronic components and the LCD, otherwise the electronic components are easily crushed by the LCD, and the LCD may be pushed by the electronic components, resulting in spots on the display. However, in the actual application process, it is found that since the metal PIN of the LCD is directly welded and fixed through the PCB, the distance between the LCD and the PCB is difficult to control, and the rationality of the gap cannot be grasped during welding. Therefore, the requirements for the welding operation are extremely high, which is not conducive to the welding operation in actual conditions. For this reason, an LCM with LCD and PCB limit is proposed. Utility Model Content

[0005] Based on this, it is necessary to provide an LCM for limiting LCD and PCB to address the above technical problems. The pin part of the conventional metal PIN is designed to be limited so that it can play a limiting role when passing through the PCB module, thereby ensuring the stability of the gap between the LCD module and the PCB module, thereby ensuring that the electronic components on the PCB module will not contact the LCD module.

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

[0007] An LCM for limiting the position of an LCD and a PCB, comprising:

[0008] LCD module;

[0009] A PCB module, which is located on one side of the LCD module;

[0010] Electronic components, which are located between the LCD module and the PCB module and mounted on the PCB module;

[0011] Wherein, the LCD module and the PCB module are connected via a metal clip PIN;

[0012] The metal clip PIN includes a clip head and a clip tail, wherein the clip head is used to connect to the corresponding LCD module, and the clip tail is used to connect to the PCB module and to form a limit on the relative space between the LCD module and the PCB module.

[0013] Furthermore, the clamp tail includes a limiting section and a welding section;

[0014] The welding section passes through the PCB module and is welded on the back side thereof;

[0015] The limiting section contacts the inner side of the PCB module to form a support limit for the LCD module.

[0016] Furthermore, the limiting section and the welding section are connected at an angle of ninety degrees, and the relative angle between the limiting section and the welding section enables the limiting section to be parallel to the surface of the PCB module to form a resistance limit.

[0017] Further, the chuck includes a head and a connecting section;

[0018] The head is used for clamping connection with the corresponding LCD module, and the connecting section extends toward the clamping tail and is connected to the outer end of the limiting section thereon.

[0019] Furthermore, the angle formed between the limiting section and the connecting section is ninety degrees.

[0020] Further, the head comprises a left clamping arm and a right clamping arm, and a clamping space is formed between the left clamping arm and the right clamping arm;

[0021] The left clamping arm and the right clamping arm are connected to the connecting section together, and the opening angle of the clamping space in a natural state is smaller than the edge thickness of the LCD module at the position to be clamped.

[0022] Furthermore, a support block is fixed on the outer side of the connecting section.

[0023] Furthermore, the direction of the support block toward the PCB module and the direction of the limiting section toward the PCB module are located on the same plane.

[0024] Furthermore, a sloped boss is formed on the surface of the support block, and the angle between the sloped boss and the connecting section is one hundred and thirty degrees.

[0025] Furthermore, the LCD module is composed of an upper polarizer, an upper glass, a lower glass and a lower polarizer.

[0026] Compared with the prior art, the utility model has the following beneficial effects:

[0027] The LCD and PCB limiting LCM provided by the utility model has a limiting design for the pin part of the conventional metal PIN, so that when the pin passes through the PCB module, it plays a limiting role through the supporting interference between the limiting section and the PCB module, thereby ensuring the stability of the gap between the LCD module and the PCB module, so as to ensure that the electronic components on the PCB module will not be displayed with spots or easily damaged due to contact with the LCD module. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the structure of the LCM for limiting the position of the LCD and PCB provided by the utility model;

[0029] Figure 2 A schematic diagram of the side view structure of the LCM for limiting the position of the LCD and the PCB provided by the utility model;

[0030] Figure 3 A partial side view structural diagram of the LCM for limiting the position of the LCD and PCB provided by the utility model;

[0031] Figure 4 A schematic structural diagram of a fourth embodiment of the LCM for limiting the position of the LCD and the PCB provided by the utility model;

[0032] Figure 5 The LCM for limiting the position of LCD and PCB provided by the utility model Figure 4 The enlarged structural diagram at A in the middle;

[0033] Figure 6 This is a schematic diagram of the metal clip PIN structure of the LCM for limiting the LCD and PCB provided by the utility model.

[0034] The markings in the figure are as follows:

[0035] LCD module 1, upper polarizer 11, upper glass 12, lower glass 13, lower polarizer 14;

[0036] PCB module 2;

[0037] Electronic components 3;

[0038] Metal clip PIN4, clip head 41, clip tail 42;

[0039] Head 410, connecting section 411;

[0040] Left clamping arm 41110, right clamping arm 41111, clamping space 4112;

[0041] Limiting section 420, welding section 421;

[0042] Support block 5, inclined boss. DETAILED DESCRIPTION

[0043] 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.

[0044] As described in the background art, since the metal PIN of the LCD is directly welded through the PCB, the distance between the LCD and the PCB is difficult to control, and the rationality of the gap cannot be grasped during welding. Therefore, the requirements for the welding operation are extremely high, which is not conducive to the welding operation in actual conditions.

[0045] In order to solve this technical problem, the utility model provides an LCM for limiting the position of an LCD and a PCB, which is applied to an LCM.

[0046] Specifically, please refer to Figure 1-Figure 6 , the LCM for LCD and PCB positioning specifically includes:

[0047] LCD module 1;

[0048] A PCB module 2, which is located on one side of the LCD module 1;

[0049] The electronic component 3 is located between the LCD module 1 and the PCB module 2 and is mounted on the PCB module 2;

[0050] Among them, the LCD module 1 and the PCB module 2 are connected through a metal clip PIN4;

[0051] The metal clip PIN4 includes a clip head 41 and a clip tail 42 . The clip head 41 is used to connect to the corresponding LCD module 1 , and the clip tail 42 is used to connect to the PCB module 2 and to limit the relative space between the LCD module 1 and the PCB module 2 .

[0052] The LCD and PCB limiting LCM provided by the utility model has a limiting design for the pin portion of the conventional metal clip PIN4, so that when it passes through the PCB module 2, it plays a limiting role through the supporting interference between the limiting section 420 and the PCB module 2. When welding is performed on one side of the PCB module 2, the gap between the LCD module 1 and the PCB module 2 is guaranteed to be stable, ensuring that the electronic components 3 on the PCB module 2 will not cause spots on the display or easily damage the electronic components due to contact with the LCD module 1.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, an LCM for limiting LCD and PCB, LCD module 1; PCB module 2, which is located on one side of LCD module 1; electronic component 3, which is located between LCD module 1 and PCB module 2 and installed on PCB module 2; wherein LCD module 1 and PCB module 2 are connected through metal clip PIN4; metal clip PIN4 includes a clamp head 41 and a clamp tail 42, the clamp head 41 is used to connect to the corresponding LCD module 1, and the clamp tail 42 is used to connect to PCB module 2 and to form a limit for the relative space distance between LCD module 1 and PCB module 2.

[0057] Please refer to Figure 5 , 6 The clip tail 42 includes a limiting section 420 and a welding section 421, and the welding section 421 passes through the PCB module 2 and is welded on the back side thereof;

[0058] The limiting section 420 contacts the inner side of the PCB module 2 to form a support and limit for the LCD module 1;

[0059] When the LCD module 1 is connected to the corresponding PCB module 2 through the metal clip PIN4, the limit segment 420 on the connected metal clip PIN4 will contact the surface of the PCB module 2, thereby ensuring the stability of the gap between the PCB module 2 and the LCD module 1, so that when the welding segment 421 passing through is welded on one side of the PCB module 2, the LCD module 1 and the PCB module 2 will not be too close to each other due to the excessive penetration depth of the welding segment 421, resulting in the electronic component 3 and the LCD module 1 forming a conflict, which is conducive to the stable display of the LCD module 1 and the protection and use of the electronic component 3;

[0060] In the process of limiting the position of the LCD module 1 by affixing the limiting segment 420 to the surface of the PCB module 2, in order to make the relative distance between the LCD module 1 and the PCB module 2 more stable during the welding process, as a further optimization of this embodiment, Figure 5 As shown, the limiting section 420 and the welding section 421 are connected at a ninety-degree angle, and the limiting section 420 is parallel to the surface of the PCB module 2 to form a resistance limit through the relative angle between the limiting section 420 and the welding section 421;

[0061] Due to the design effect of the limiting section 420 and the welding section 421 being connected at a 90-degree angle, the limiting section 420 and the welding section 421 can be more fully fitted in the corresponding PCB module 2 area. Due to the full fit, the assembly between the metal clip PIN4 and the PCB module 2 and the subsequent welding stability are relatively achieved to achieve the maximum support effect;

[0062] The LCM for limiting the position of the LCD and the PCB provided in Example 1 is further optimized. Specifically, Figure 4 As shown, the chuck 41 includes a head 410 and a connecting section 411;

[0063] The head 410 is used to be clamped and connected with the corresponding LCD module 1, and the connecting section 411 extends toward the clamping tail 42 and is connected to the outer end of the limiting section 420 thereon;

[0064] The angle formed between the limiting section 420 and the connecting section 411 is ninety degrees.

[0065] like Figure 5As shown, the connecting section 411 and the PCB module 2 are perpendicular to each other, and since the limiting section 420 directly connected to the connecting section 411 is in a fitted state with the PCB module 2, the right angle formed by the connecting section 411 and the limiting section 420 can make the relative support between the metal clip PIN4 and the PCB module 2 more stable, ensuring that the metal clip PIN4 forms a stable support effect on the LCD module 1 after welding, making it less likely to tilt and cause the LCD module 1 to contact the electronic component 3, affecting the normal display of the LCD module 1 and the normal operation of the electronic component 3.

[0066] The LCM for limiting the LCD and PCB provided in Example 1 or 2 is further optimized, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the head 410 includes a left clamping arm 4110 and a right clamping arm 4111, and a clamping space 4112 is formed between the left clamping arm 4110 and the right clamping arm 4111;

[0067] The left clamping arm 4110 and the right clamping arm 4111 are connected to the connecting section 411 together, and the opening angle of the clamping space 4112 in a natural state is smaller than the edge thickness of the LCD module 1 at the position to be clamped;

[0068] Since the opening angles of the left clamping arm 4111 and the right clamping arm 4111 are slightly smaller than the thickness of the LCD module 1, when the metal clip PIN4 is actually buckled onto the LCD module 1, the connection between the head 410 and the LCD module 1 can be ensured to be stable, making it difficult to fall off, thereby improving the stability of signal transmission between the LCD module 1 and the PCB module 2;

[0069] like Figure 5 As shown, the outward openings of the left clamping arm 4110 and the right clamping arm 4111 are both flipped outward to form openings. Therefore, through the design of the flip structure, it can be more labor-saving when the head 410 is buckled on the LCD module 1, making the insertion process smoother.

[0070] like Figure 2 As shown, after the metal clip PIN4 with a limiting function is installed on the PCB module 2 through the LCD module 1, when the LCD module 1 is subjected to an external force, the connection section 411 is vertically connected to the limiting section 420, so the strength of the connection is relatively weak, and the 90-degree angle formed by the connection is easy to change, which may cause the connection section 411 to form an upward or downward tilt trend, and it is also impossible to well guarantee the supporting distance between the LCD module 1 and the PCB module 2;

[0071] To this end, this embodiment further optimizes the LCM for limiting the LCD and PCB provided in Embodiment 3, such as Figure 5 and Figure 6 As shown, a support block 5 is fixed to the outer side of the connecting section 411;

[0072] The direction of the support block 5 toward the PCB module 2 and the direction of the limiting section 420 toward the PCB module 2 are located on the same plane;

[0073] The surface of the support block 5 is formed with an inclined boss 51, and the angle between the inclined boss 51 and the connecting section 411 is 130 degrees;

[0074] Through the structural design of the support block 5, when the LCD module 1 is subjected to external force, the connecting section 411 with a tilting tendency will be subjected to the lateral support force of the support block 5 to achieve an increase in the support force, thereby increasing the support strength to a certain extent. The specific steps are as follows:

[0075] like Figure 2 and 5 As shown, if the LCD module 1 generates an upward extrusion tendency, the connection segment 411 at the upper part and the connection segment 411 at the lower part, which are subjected to the force, will produce an angle deviation at the connection point of the welding segment 421 connected thereto. In this process, since the tail of the connection segment 411 is subjected to the force of the support block 5, the extrusion force that the connection segment 411 needs to overcome to produce the deviation needs to be greater, which also improves the support strength between the metal clip PIN4 and the LCD module 1 and the PCB module 2 to a certain extent, thereby forming a more favorable protection for the LCD module 1 and the electronic components 3;

[0076] like Figure 3 As shown, as a further optimization provided by this embodiment, the LCD module 1 is composed of an upper polarizer 11, an upper glass 12, a lower glass 13 and a lower polarizer 14;

[0077] The use process of the LCM for limiting LCD and PCB provided by the utility model is as follows: the LCD module 1 with the metal clip PIN4 is moved closer to the PCB module 2, so that the metal clip PIN4 partially passes through the PCB module 2, and the remaining limiting segment 420 is supported on the PCB module 2 to form a support for the relative distance between the LCD module 1 and the PCB module 2, so as to avoid the LCD module 1 and the electronic components 3 from contacting each other, which is beneficial to the display of the LCD module 1 and the extrusion protection of the electronic components 3. At the same time, a support block 5 is added to the connecting segment 411. When the LCD module 1 is squeezed, the connecting segment 411 on the metal clip PIN4 thereon can be further firmly supported by the support block 5, thereby improving the supporting stability of the connecting segment 411, and better protecting the relative distance between the LCD module 1 and the electronic components 3.

[0078] 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.

[0079] 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 LCM for limiting the position of LCD and PCB, characterized in that: It includes: LCD module (1); A PCB module (2), located on one side of the LCD module (1); An electronic component (3) located between the LCD module (1) and the PCB module (2) and mounted on the PCB module (2); The LCD module (1) and the PCB module (2) are connected via a metal clip PIN (4); The metal clip PIN (4) comprises a clip head (41) and a clip tail (42); the clip head (41) is used to connect to the corresponding LCD module (1); the clip tail (42) is used to connect to the PCB module (2) and to form a limit on the relative spatial distance between the LCD module (1) and the PCB module (2).

2. The LCM for limiting the position of LCD and PCB according to claim 1, characterized in that: The clamp tail (42) comprises a limiting section (420) and a welding section (421); The welding section (421) passes through the PCB module (2) and is welded on the back side thereof; The limiting section (420) contacts the inner side of the PCB module (2) to form a support limit for the LCD module (1).

3. The LCM for limiting the position of LCD and PCB according to claim 2, characterized in that: The limiting section (420) and the welding section (421) are connected at an angle of ninety degrees, and the relative angle between the limiting section (420) and the welding section (421) enables the limiting section (420) to be parallel to the surface of the PCB module (2) to form a resistance limit.

4. The LCM for limiting the position of LCD and PCB according to claim 2, characterized in that: The chuck (41) comprises a head portion (410) and a connecting section (411); The head (410) is used for clamping connection with the corresponding LCD module (1), and the connecting section (411) extends in the direction of the clamping tail (42) and is connected to the outer end of the limiting section (420) thereon.

5. The LCM for limiting the position of LCD and PCB according to claim 4, characterized in that: The angle formed between the limiting section (420) and the connecting section (411) is ninety degrees.

6. The LCM for limiting the position of LCD and PCB according to claim 4, characterized in that: The head (410) comprises a left clamping arm (4110) and a right clamping arm (4111), and a clamping space (4112) is formed between the left clamping arm (4110) and the right clamping arm (4111); The left clamping arm (4110) and the right clamping arm (4111) are jointly connected to the connecting section (411), and the opening angle of the clamping space (4112) in a natural state is smaller than the edge thickness of the LCD module (1) at the position to be clamped.

7. The LCM for limiting the position of LCD and PCB according to claim 4, characterized in that: A support block (5) is fixed to the outer side of the connecting section (411).

8. The LCM for limiting the position of LCD and PCB according to claim 7, characterized in that: The direction of the support block (5) towards the PCB module (2) and the direction of the limiting section (420) towards the PCB module (2) are located on the same plane.

9. The LCM for limiting the position of LCD and PCB according to claim 7, characterized in that: A bevel boss (51) is formed on the surface of the support block (5), and the angle between the bevel boss (51) and the connecting section (411) is one hundred and thirty degrees.

10. The LCM for limiting the position of LCD and PCB according to claim 1, characterized in that: The LCD module (1) is composed of an upper polarizer (11), an upper glass (12), a lower glass (13) and a lower polarizer (14).

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