CN217007909U

CN217007909U - LCM structure with FPC bending area

Info

Publication number: CN217007909U
Application number: CN202220647950.3U
Authority: CN
Inventors: 李松强; 黄忠乐
Original assignee: Sichuan Sanlong Electronics Co ltd
Current assignee: Sichuan Sanlong Electronics Co ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-07-19
Anticipated expiration: 2032-03-23

Abstract

The utility model relates to the technical field of LCM structures, in particular to an LCM structure with an FPC (flexible printed circuit) bending area, which comprises an LCM module and a first flexible FPC, wherein the LCM module is provided with a first connecting area, the first connecting area is provided with a drive IC (integrated circuit), and the first flexible FPC comprises a second flexible FPC, a second connecting area, a first connector interface and a second connector interface.

Description

LCM structure with FPC bending area

Technical Field

The utility model relates to the technical field of LCM structures, in particular to an LCM structure with an FPC (flexible printed circuit) bending area.

Background

In the installation process, the connecting area of the FPC needs to be bent, the connecting area is bent to generate rebound stress, and the phenomenon of integral rebound is easily caused after the FPC is bent, so that the poor production is caused. When the FPC is under the external force acting force, FPC takes place the rupture easily, and these all have serious quality, the risk of reliability.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides the LCM structure with the FPC bending area, which can enhance the flexibility of the FPC and reduce the bending stress.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a LCM structure with FPC buckle area, includes LCM module and first flexible FPC, is equipped with first connection region on the LCM module, be equipped with drive IC on the first connection region, first flexible FPC includes second flexible FPC, second connection region, first connector interface and second connector interface, the top at first flexible FPC is connected to second flexible FPC, first connector interface connection is at the top of second flexible FPC, second flexible FPC passes through first connector interface and is connected with drive IC, be equipped with second connector interface on the second connection region, be equipped with a plurality of through-holes on the second flexible FPC, first flexible FPC splices with second flexible FPC and is L type structure.

In order to improve the display effect, the LCM comprises a circuit board, LCD glass, an upper polaroid, a lower polaroid and a backlight source, the first connecting area is connected with the LCD glass and the backlight source, the upper polaroid and the lower polaroid are respectively arranged on the upper surface and the lower surface of the LCD glass, the drive IC is pressed to the corresponding position of the LCD glass through conductive adhesive at high temperature and high pressure, and the circuit board is arranged on the LCD glass and electrically connects the drive IC with the LCM.

In order to improve the connection effect of the first connector interface, welding points are arranged between the two ends of the first connector interface and the first connection area.

In order to improve the stability of the connection between the LCM and the first flexible FPC, a first conductive strip is arranged between the first connection region and the first flexible FPC.

In order to improve the signal transmission stability of the first flexible FPC, a second conductive strip is arranged on the first flexible FPC and is positioned at the second connection area.

(III) advantageous effects

Compared with the prior art, the LCM structure with the FPC bending area has the following beneficial effects:

according to the utility model, the second flexible FPC reduces the rebound stress generated when the second flexible FPC is bent, the flexibility is increased, the module product can be ensured not to rebound after being assembled, the through holes are arranged on the second flexible FPC to effectively release the bending elastic stress of the second flexible FPC, the bending effect is ensured, the FPC can not rebound from the bent position due to large bending elastic restoring force, and the reliability of the whole LCM is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

in the figure: 1. a circuit board; 2. an upper polarizer; 3. LCD glass; 4. a lower polarizer; 5. a backlight source; 6. a first connection region; 7. a welding point; 8. a first connector interface; 9. a first flexible FPC; 10. a second flexible FPC; 11. a through hole; 12. a first conductive strip; 13. a second attachment zone; 14. a second conductive strip; 15. a second connector interface;

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention is an LCM structure having a FPC bending region, including an LCM module and a first flexible FPC9, where the LCM module is provided with a first connection region 6, the first connection region 6 is provided with a driving IC, the first flexible FPC9 includes a second flexible FPC10, a second connection region 13, a first connector interface 8 and a second connector interface 15, the second flexible FPC10 is connected to a top end of the first flexible FPC9, the first connector interface 8 is connected to a top of the second flexible FPC10, the second flexible FPC10 is connected to the driving IC through the first connector interface 8, the second connection region 13 is provided with the second connector interface 15, the second flexible FPC10 is provided with a plurality of through holes 11, and the first flexible FPC9 and the second flexible FPC10 are spliced to form an L-type structure.

In this embodiment, the LCM module includes a circuit board 1, an LCD glass 3, an upper polarizer 2, a lower polarizer 4, and a backlight 5, the first connecting region 6 connects the LCD glass 3 and the backlight 5, the upper polarizer 2 and the lower polarizer 4 are respectively disposed on the upper and lower surfaces of the LCD glass 3, the driver IC is pressed to the corresponding position of the LCD glass 3 at high temperature and high pressure through a conductive adhesive, the circuit board 1 is disposed on the LCD glass 3 to electrically connect the driver IC and the LCM module, the LCM module has the advantages of light weight, thin thickness, low power consumption, etc., the LCD in the LCM module does not emit light, and the backlight 5 is required to provide light, so that a viewer can view an image displayed by the liquid crystal display panel.

In this embodiment, the welding points 7 are arranged between the two ends of the first connector interface 8 and the first connection area 6, so that the connection effect of the first connector interface 8 is improved, and the connection is more stable.

In this embodiment, the first conductive strips 12 are disposed between the first connection region 6 and the first flexible FPC9, so as to improve the stability of the connection between the LCM module and the first flexible FPC 9.

In this embodiment, the first flexible FPC9 is provided with a second conductive strip 14, and the second conductive strip 14 is located at the second connection region 13, so as to improve the signal transmission stability of the first flexible FPC 9.

In summary, this LCM structure with FPC bending area, when using, reduce the rebound stress that produces when this department buckles through second flexible FPC10, increase the pliability, can guarantee that the module product can not bounce after the assembly, set up through-hole 11 and effectively release the elastic stress that second flexible FPC10 buckled on second flexible FPC10, guarantee the effect of buckling, and can not lead to making FPC bounce from the position after buckling because of buckling elastic restoring force is big, improve the reliability of whole LCM module, first flexible FPC9 is connected with driver IC through first connector interface 8 on second flexible FPC10, later start driver IC through the circuit board and realize the transmission of signal, first flexible FPC9 realizes being connected with the signal transmission end through second connector interface 15.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An LCM structure with FPC bending area is characterized in that the LCM structure comprises an LCM module and a first flexible FPC (9), the LCM module is provided with a first connecting area (6), the first connecting area (6) is provided with a driving IC, the first flexible FPC (9) comprises a second flexible FPC (10), a second connecting area (13), a first connector interface (8) and a second connector interface (15), the second flexible FPC (10) is connected to the top end of the first flexible FPC (9), the first connector interface (8) is connected on top of a second flexible FPC (10), the second flexible FPC (10) is connected with the driving IC through a first connector interface (8), a second connector interface (15) is arranged on the second connecting area (13), a plurality of through holes (11) are arranged on the second flexible FPC (10), the first flexible FPC (9) and the second flexible FPC (10) are spliced into an L-shaped structure.

2. The LCM structure with the FPC bending area according to claim 1, wherein the LCM comprises a circuit board (1), LCD glass (3), an upper polarizer (2), a lower polarizer (4) and a backlight source (5), the first connecting area (6) is connected with the LCD glass (3) and the backlight source (5), the upper polarizer (2) and the lower polarizer (4) are respectively arranged on the upper surface and the lower surface of the LCD glass (3), the driver IC is pressed to the corresponding position of the LCD glass (3) through conductive adhesive at high temperature and high pressure, and the circuit board (1) is arranged on the LCD glass (3) to electrically connect the driver IC with the LCM.

3. The LCM structure with the FPC bending area as claimed in claim 1, wherein solder points (7) are arranged between two ends of the first connector interface (8) and the first connection area (6).

4. The LCM structure with FPC bending area according to claim 1, wherein a first conductive strip (12) is disposed between the first connection area (6) and the first flexible FPC (9).

5. The LCM structure with the FPC bending area as recited in claim 1, wherein a second conductive strip (14) is disposed on the first flexible FPC (9), and the second conductive strip (14) is located at the second connection area (13).