LCM (Liquid Crystal Module) with bending-resistant FPC (Flexible Printed Circuit) structure

Abstract

The utility model discloses an LCM (Liquid Crystal Module) with a bending-resistant FPC (Flexible Printed Circuit) structure, and belongs to the field of LCMs. An LCM module with a bending-resistant FPC structure comprises an LCD module, a backlight module and an FPC module, the bottom end of the LCD module is electrically connected with a connecting plug, the bottom end of the connecting plug is provided with a positioning sleeve, the FPC module comprises an FPC board, plug boards are installed at the two ends of the FPC board, connectors are installed at the outer ends of the plug boards, a first bending area is arranged in the middle of the FPC board, and a second bending area is arranged in the middle of the FPC board. Second reinforcing plates are arranged on the two sides, located on the first bending area, of the FPC board, elastic pieces are arranged at the two ends of the inserting plate, limiting protrusions are installed on the outer sides of the elastic pieces, clamping grooves are formed in the corresponding positions of the inner side of the positioning sleeve, and a pressing and holding assembly is installed on the connecting plug in a penetrating mode. According to the utility model, the first reinforcing plate and the second reinforcing plate are arranged on the bent side surfaces, and the rigidity of the non-bent area is effectively increased through the reinforcing plates, so that the FPC is more stable in bending, and the service life of the FPC in use is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to LCM module technical field especially relates to a kind of LCM module with bending-resistant FPC structure. BACKGROUND

[0002] LCM is also named LCD display module, liquid crystal module, refers to the assembly that liquid crystal display device, connecting piece, control and drive and other peripheral circuit, PCB circuit board, backlight source, structural component etc. are assembled together.

[0003] Through the search, the patent with Chinese patent application No.202121622291.X discloses a kind of LCM module with bending-resistant FPC structure, including backlight module, LCD module and FPC module, the FPC module has first FPC board and first connecting area, single layer area, first double layer area, second double layer area set on first FPC board;The first connecting area is used to connect LCD module;The first double layer area includes sequentially connected first extension section, second extension section and third extension section, the first extension section is from the lower side of single layer area and extends downward, the second extension section is from the lower end of first extension section and extends left lower side, the third extension section is from the left side of second extension section and extends left side;The second double layer area includes fourth extension section that is from the lower side of single layer area and extends downward;And, the right side of first extension section and the left side of fourth extension section keep bending gap.Such, by the specific design of FPC, the rebound stress generated when bending and the mutual influence between first double layer area and second layer area are reduced;

[0004] Although the rebound stress generated when bending in the above-mentioned patent can be reduced by the design of FPC single layer area, the position adjacent to the bending area on FPC is easily extruded or bent when bending, which leads to more bending pressure on this part, and damage is easily caused during use, resulting in the decrease of service life of FPC.

[0005] Therefore, it is urgent to have an LCM module with bending-resistant FPC structure to solve the above-mentioned problems. UTILITY MODEL CONTENT

[0006] The utility model aims at solving the problem that non-bending area is easily damaged by more pressure when bending in prior art, and affects its service life, and proposes an LCM module with bending-resistant FPC structure.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0008] The utility model provides a kind of LCM module with bend-resistant FPC structure, including LCD module, backlight module and FPC module, the LCD module is electrically connected with the FPC module, the bottom end electrically connected of the LCD module is equipped with connecting plug, the bottom end of the connecting plug is equipped with positioning sleeve, the FPC module includes FPC board, the both ends of the FPC board are equipped with plugboard, the outer end of the plugboard is equipped with connecting head, the middle part of the FPC board is equipped with first bending area, the both sides of the first bending area on the FPC board are equipped with second reinforcing plate, the both ends of the plugboard are equipped with elastic sheet, the outside of the elastic sheet is equipped with limit protrusion, the inside of the positioning sleeve is equipped with clamping groove in corresponding position, the connecting plug is equipped with hold-down assembly.

[0009] As the preferred technical solution of the present application, the both ends of the FPC board are equipped with second bending area on the side of plugboard.

[0010] As the preferred technical solution of the present application, the side of the second bending area is equipped with first reinforcing plate.

[0011] As the preferred technical solution of the present application, the outer end of the elastic sheet is equipped with handle.

[0012] As the preferred technical solution of the present application, the hold-down assembly includes sealing plate fixedly connected with the connecting plug, and the bottom of the sealing plate is connected with outer sliding sleeve through spring.

[0013] As the preferred technical solution of the present application, the bottom of the sealing plate is equipped with inner sliding sleeve inserted into the outer sliding sleeve, and the side of the outer sliding sleeve facing the entrance of the connecting head is arc-shaped.

[0014] Compared with the prior art, the LCM module with bend-resistant FPC structure has the following advantages:

[0015] 1. The LCM module with bend-resistant FPC structure effectively increases the rigidity of the non-bending area through the first reinforcing plate and the second reinforcing plate arranged on the side of the bending area, which makes the bending more stable and effectively improves the service life of the FPC during use, solving the problem that the non-bending area is easily damaged by excessive pressure during bending in the prior art, affecting the service life.

[0016] 2. The LCM module with bend-resistant FPC structure realizes the reinforcement of the connection between the FPC module and the LCD module through the outer sliding sleeve under the action of the spring, improves the tightness of the connection, and improves the stability during connection through the elastic sheet, solving the problem that the tightness of the connection between the FPC module and the LCD module is poor and easy to fall off in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic view of the utility model;

[0018] Figure 2 It is the whole structure schematic view of the utility model Figure 1 It is the structure schematic view of part A in the utility model;

[0019] Figure 3 It is the pressure holding subassembly installation structure schematic view of the utility model;

[0020] Figure 4 It is the pressure holding subassembly structure schematic view of the utility model.

[0021] In the drawing,

[0022] 1, LCD module;2, connecting plug;3, positioning sleeve;4, connecting head;5, plugboard;6, first reinforcing plate;7, first bending area;8, second bending area;9, FPC board;10, second reinforcing plate;11, elastic sheet;12, limiting protrusion;13, handle;14, sealing plate;15, inner sliding sleeve;16, outer sliding sleeve;17, spring. Specific implementation

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model; Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, and all other embodiments obtained by those skilled in the art without creative labor based on the embodiments in the utility model belong to the protection scope of the utility model.

[0024] Referring to Figures 1-4 An LCM module with a bending-resistant FPC structure, comprising an LCD module 1, a backlight module and an FPC module, the LCD module 1 is electrically connected with the FPC module, the bottom end of the LCD module 1 is electrically connected with a connecting plug 2, the bottom end of the connecting plug 2 is provided with a positioning sleeve 3, the FPC module comprises an FPC board 9, both ends of the FPC board 9 are provided with a plugboard 5, the outer end of the plugboard 5 is provided with a connecting head 4, the connecting head 4 is inserted into the connecting plug 2 to connect the LCD module 1 and the FPC module, the FPC board 9 can be protected when the plugboard 5 is plugged in and pulled out, the stability of the connection between the LCD module 1 and the FPC module is increased, and the damage to the FPC board 9 when plugging in and pulling out is reduced;

[0025] The middle part of the FPC plate 9 is provided with a first bending area 7, and the first bending area 7 facilitates bending and effectively prolongs the service life of the FPC plate 9 during use. The two sides of the FPC plate 9 located on the two sides of the first bending area 7 are provided with a second reinforcing plate 10, and the second reinforcing plate 10 can protect the non-bending area located on the two sides of the first bending area 7, thereby reducing damage to the surrounding area during bending. The two ends of the FPC plate 9 located on one side of the plug-in plate 5 are provided with a second bending area 8, and the second bending area 8 is provided at the port for connection, which facilitates bending during plugging and improves the service life of the FPC plate 9. In addition, one side of the second bending area 8 is provided with a first reinforcing plate 6 for improving the rigidity of the non-bending area, protecting the non-bending area, and prolonging the service life of the FPC plate 9. The first reinforcing plate 6 and the second reinforcing plate 10 are both adhered to the FPC plate 9 by glue, and the first reinforcing plate 6 and the second reinforcing plate 10 are both stainless steel reinforcing plates.

[0026] With reference to Figure 2 Further, the two ends of the plug-in plate 5 are provided with elastic sheets 11, and the elastic sheets 11 have elasticity. When the plug-in plate 5 is inserted into the positioning sleeve 3, the elastic sheets 11 are clamped in the interior of the positioning sleeve 3 through elasticity. The outer side of the elastic sheet 11 is provided with a limiting protrusion 12, and a clamping groove is formed in the corresponding position on the inner side of the positioning sleeve 3. After installation, the limiting protrusion 12 is clamped into the clamping groove on the inner side of the positioning sleeve 3 under the action of elasticity, thereby reinforcing the connection between the FPC module and the LCD module 1 and improving the stability of the connection during use. The outer end of the elastic sheet 11 is provided with a handle 13, and the handle 13 is located on the outer side of the positioning sleeve 3 after installation. When disassembling, the limiting protrusion 12 is separated from the clamping groove on the inner side of the positioning sleeve 3 by pressing the handle 13, and the plug-in plate 5 is disassembled. The operation is simple and convenient.

[0027] With reference to Figure 3 and Figure 4 Further, the connecting plug 2 is provided with a pressing assembly penetratingly installed thereon, and the pressing assembly comprises a sealing plate 14 fixedly connected with the connecting plug 2. The bottom of the sealing plate 14 is connected with an outer sliding sleeve 16 through a spring 17. The inner side of the outer sliding sleeve 16 is hollow, and the bottom of the sealing plate 14 is provided with an inner sliding sleeve 15 inserted into the outer sliding sleeve 16. When the outer sliding sleeve 16 is stretched and contracted under the action of the spring 17, the stability of the stretching and contraction of the outer sliding sleeve 16 can be maintained through the sliding of the inner sliding sleeve 15. In use, the connecting head 4 is extruded to maintain the tightness of the connection between the FPC module and the LCD module 1. The side of the outer sliding sleeve 16 facing the entrance of the connecting head 4 is arc-shaped, which facilitates the insertion of the connecting head 4.

[0028] Specifically, when the LCM module with the bending-resistant FPC structure is working / used: the plug-in plate 5 is inserted into the positioning sleeve 3 to connect the LCD module 1 and the FPC module. After connection, the connection between the LCD module 1 and the FPC module is strengthened by the pressing assembly and the elastic sheet 11.

[0029] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An LCM module with a bend-resistant FPC structure, comprising an LCD module (1), a backlight module, and an FPC module, characterized in that, The LCD module (1) is electrically connected to the FPC module. The bottom end of the LCD module (1) is electrically connected to a connector (2). The bottom end of the connector (2) is provided with a positioning sleeve (3). The FPC module includes an FPC board (9). Both ends of the FPC board (9) are equipped with insert plates (5). The outer end of the insert plate (5) is equipped with a connector (4). The middle part of the FPC board (9) is provided with a first bending area (7). The FPC board (9) is provided with a second reinforcing plate (10) on both sides of the first bending area (7). Both ends of the insert plate (5) are provided with spring pieces (11). The outer side of the spring piece (11) is provided with a limiting protrusion (12). A slot is opened at the corresponding position on the inner side of the positioning sleeve (3). A pressure-holding component is installed through the connector (2).

2. The LCM module with a bend-resistant FPC structure according to claim 1, characterized in that, The two ends of the FPC board (9) are provided with a second bending area (8) on one side of the insert plate (5).

3. An LCM module with a bend-resistant FPC structure according to claim 2, characterized in that, A first reinforcing plate (6) is provided on one side of the second bending area (8).

4. An LCM module with a bend-resistant FPC structure according to claim 1, characterized in that, A handle (13) is installed at the outer end of the spring (11).

5. An LCM module with a bend-resistant FPC structure according to claim 1, characterized in that, The pressing assembly includes a sealing plate (14) fixedly connected to the connecting plug (2), and the bottom of the sealing plate (14) is connected to an outer sliding sleeve (16) by a spring (17).

6. An LCM module with a bend-resistant FPC structure according to claim 5, characterized in that, The bottom of the sealing plate (14) is provided with an inner sliding sleeve (15) that is inserted into the outer sliding sleeve (16), and the side of the outer sliding sleeve (16) facing the inlet of the connector (4) is arc-shaped.

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