CN210626825U

CN210626825U - Liquid crystal module with elastic limiting block

Info

Publication number: CN210626825U
Application number: CN201921851659.2U
Authority: CN
Inventors: 刘福才
Original assignee: Guangdong Dida Kuxian Flexible Display Technology Co Ltd
Current assignee: Guangdong Dida kuxian flexible display technology Co.,Ltd.
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-05-26
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses a liquid crystal module with an elastic limiting block, which comprises a front frame, a liquid crystal panel, a middle frame, a diffusion plate, a back plate and an elastic limiting block, wherein the front frame is fixed on the back plate, an installation inner cavity is formed between the front frame and the back plate, one ends of the liquid crystal panel, the middle frame and the diffusion plate are all arranged in the installation inner cavity, and a flexible circuit board arranged in the installation inner cavity is arranged on the liquid crystal panel; have elastic limiting block and install in the installation inner chamber, elastic limiting block includes interconnect's spacing portion and fixed part, fixed part and the interior wall connection of preceding frame, the outer end of spacing portion with the flexible circuit board contact. The utility model discloses an elasticity stopper contacts with liquid crystal display panel's flexible circuit board, and the buffering protection when realizing spacing elasticity that utilizes elasticity stopper to form the vibration to flexible circuit board when realizing flexible circuit board, realizes that flexible circuit board is by the purpose of stable protection under the state of buckling.

Description

Liquid crystal module with elastic limiting block

Technical Field

The utility model relates to a liquid crystal module especially relates to a liquid crystal module with elastic limiting block.

Background

Currently, liquid crystal modules are widely used as devices for displaying pictures in electronic devices having display devices, such as televisions, computers, and all-in-one machines. The lcd module includes an lcd panel, which is a complex and fragile electronic component that needs to be properly secured within the lcd module.

The liquid crystal panel has IC chips of control signals on the left side and the right side, and part of the liquid crystal panel adopts the COG technology (CHIPON GLASS), namely the IC chips are directly bound on the GLASS surface of the LCD liquid crystal screen. In addition, a part of liquid crystal panels adopt a Chip On Film (COF) technology, chips such as a touch IC (integrated circuit) are embedded On a Flexible Printed Circuit (FPC), and then the flexible printed circuit is bent to the lower side of a screen, and the liquid crystal panels of the COF technology have a convex flexible printed circuit, so that the flexible printed circuit cannot be well protected.

If the flexible circuit board with the packaged IC on the liquid crystal panel is not reasonably kept away or protected, the connecting circuit of the IC is broken, the control signal cannot be effectively communicated, and the liquid crystal module cannot be normally used due to abnormal display.

In the prior art, a method of avoiding positions is generally adopted to ensure that the flexible circuit board on the liquid crystal panel is not extruded or interfered, and a method of extending and fixing the flexible circuit board by using a sheet-shaped fixing piece with an adhesive material can be also adopted to protect the flexible circuit board. The adoption of a sufficient avoiding method ensures that a flexible circuit board on the liquid crystal panel is not extruded or interfered, which can cause the size of the liquid crystal module to be enlarged, the manufacturing cost of the liquid crystal module is increased, the front frame of the liquid crystal module is too wide and is not beautiful enough in appearance, and the experience of a user is influenced; the method for prolonging and fixing the flexible circuit board by adopting the sheet-shaped fixing piece with the adhesive material to protect the flexible circuit board has the disadvantages of complex process, higher requirement on operators and unstable protection effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take liquid crystal module of elasticity stopper solves the unstable problem of flexible circuit board protection effect on the liquid crystal display panel under the less condition of size of preceding frame.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a liquid crystal module with an elastic limiting block comprises a front frame, a liquid crystal panel, a middle frame, a diffusion plate and a back plate, wherein the front frame is fixed on the back plate, an installation inner cavity is formed between the front frame and the back plate through bending, one ends of the liquid crystal panel, the middle frame and the diffusion plate are all arranged in the installation inner cavity, and a flexible circuit board arranged in the installation inner cavity is arranged on the liquid crystal panel; the liquid crystal module is characterized in that the liquid crystal module further comprises an elastic limiting block arranged in the installation inner cavity, the elastic limiting block comprises a limiting part and a fixing part which are connected with each other, the fixing part is connected with the inner wall of the front frame, and the outer end of the limiting part is in contact with the flexible circuit board.

In order to facilitate the assembly, the further technical scheme is as follows: the fixing part is provided with a bending structure consistent with the inner wall of the front frame, and the fixing part is connected with the inner wall of the front frame in a bonding mode.

In order to realize good limiting support, the further technical scheme is as follows: and a connecting corner smaller than 90 degrees is arranged between the limiting part and the fixing part, and the limiting part is in surface-to-surface contact with the bent flexible circuit board.

In order to realize more accurate spacing, a further technical scheme is as follows: the surface of the limiting part, which is in contact with the flexible circuit board, is provided with a limiting groove, and a limiting bulge arranged in the limiting groove is arranged at a corresponding position on the flexible circuit board.

In order to realize stable connection, the further technical scheme is as follows: the middle frame comprises a vertical part, a horizontal part and a connecting part which are sequentially connected, the connecting part is fixed on the back plate through a screw, the top surface of the horizontal part props against the bottom surface of the liquid crystal panel, and the liquid crystal panel is fixed between the middle frame and the front frame; the vertical part is fixedly connected with the diffusion plate, and the diffusion plate is fixed between the vertical part and the back plate.

In order to improve the adaptability, the further technical scheme is as follows: the connecting part bends towards the horizontal part, and the bending angle of the connecting part is matched with the angle formed by the limiting part and the fixing part of the elastic limiting block.

In order to improve the stability and the aesthetic property, the further technical proposal is as follows: the front frame is fixed on the back plate through screws, and the edge of the back plate is bent upwards to wrap the edge of the front frame.

Specifically, in order to facilitate processing and reduce cost, the elastic limiting block is a rubber block or a plastic block.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a flexible circuit board contact of elasticity stopper and liquid crystal display panel utilizes the elasticity of elasticity stopper to form the buffer protection when vibrating to the flexible circuit board when realizing spacing to the flexible circuit board, realizes the purpose that the flexible circuit board is stably protected under the state of buckling, even if the movement of great extent appears, the flexible circuit board also can avoid receiving the damage because of the elasticity of elasticity stopper to the high-efficient location and the protection to the flexible circuit board have been realized; meanwhile, the flexible circuit board is bent along the limiting part, so that the length of the flexible circuit board on the liquid crystal glass plane is reduced, the width of the front frame can be reduced under the narrower condition of the front frame, and the flexible circuit board can be stably protected under the condition that the size of the front frame is reduced.

Drawings

Fig. 1 is the local structure schematic diagram of the liquid crystal module with the elastic limiting block.

Fig. 2 is the structure schematic diagram of the middle frame of the liquid crystal module with the elastic limiting block, the angle is consistent with fig. 1 and the proportion is greater than fig. 1.

Fig. 3 is the structure schematic diagram of the elastic limiting block of the liquid crystal module with the elastic limiting block, the angle is consistent with fig. 1 and the proportion is greater than fig. 1.

In the figure, 1-front frame, 2-elastic limiting block, 3-flexible circuit board, 4-middle frame, 5-back plate, 6-diffusion plate, 7-liquid crystal panel, 8-connecting part, 9-horizontal part, 10-vertical part, 11-fixing part, 12-limiting part and 13-limiting groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Specific example 1:

as shown in fig. 1-3, a liquid crystal module with an elastic limiting block includes a front frame 1, a liquid crystal panel 7, a middle frame 4, a diffusion plate 6, a back plate 5 and an elastic limiting block 2, wherein the front frame 1 is fixed on the back plate 5, an installation cavity is formed between the front frame 1 and the back plate 5 by bending, one end of each of the liquid crystal panel 7, the middle frame 4 and the diffusion plate 6 is disposed in the installation cavity, and a flexible circuit board 3 disposed in the installation cavity is disposed on the liquid crystal panel 7; the elastic limiting block 2 with elasticity is arranged in the installation inner cavity, the elastic limiting block 2 is a rubber block or a plastic block, the concrete plastic glue can be JL-655PP plastic glue of force gathering glue, the elastic limiting block 2 comprises a limiting part 12 and a fixing part 11 which are connected with each other, a connecting corner which is smaller than 90 degrees is arranged between the limiting part 12 and the fixing part 11, the fixing part 11 is provided with a bending structure which is consistent with the inner wall of the front frame 1, the fixing part 11 is connected with the inner wall of the front frame 1 in a bonding mode, and the outer end of the limiting part 12 is in surface-to-surface contact with the bent flexible circuit board 3; the surface of the limiting part 12 contacting with the flexible circuit board 3 is provided with a limiting groove 13, and a limiting bulge arranged in the limiting groove 13 is arranged at the corresponding position on the flexible circuit board 3.

The flexible circuit board 3 is limited by the contact of the elastic limiting block 2 and the flexible circuit board 3 of the liquid crystal panel 7, and meanwhile, the flexible circuit board 3 is protected by buffering when vibration is formed on the flexible circuit board by the elasticity of the elastic limiting block 2, so that the purpose that the flexible circuit board 3 is stably protected in a bending state is achieved, and even if movement of a large extent occurs, the flexible circuit board 3 can be prevented from being damaged due to the elasticity of the elastic limiting block 2, and thus, the flexible circuit board 3 is efficiently positioned and protected; meanwhile, the flexible circuit board 3 is bent along the limiting part 12, so that the length of the flexible circuit board 3 on the liquid crystal glass plane is reduced, the width of the front frame 1 can be reduced under the narrower condition of the front frame 1, and the flexible circuit board 3 can be stably protected under the condition that the size of the front frame 1 is reduced.

Specific example 2:

as shown in fig. 1 to 3, in embodiment 1, the middle frame 4 includes a vertical portion 10, a horizontal portion 9 and a connecting portion 8 connected in sequence, the connecting portion 8 is fixed on the back plate 5 by a screw, and the top surface of the horizontal portion 9 abuts against the bottom surface of the liquid crystal panel 7, so as to fix the liquid crystal panel 7 between the middle frame 4 and the front frame 1; the vertical part 10 is fixedly connected with the diffusion plate 6), and the diffusion plate 6 is fixed between the vertical part 10 and the back plate 5; the connecting part 8 is bent towards the horizontal part 9, and the bending angle is matched with the angle formed by the limiting part 12 and the fixing part 11 of the elastic limiting block 2; the front frame 1 is fixed on the back plate 5 through screws, and the edge of the back plate 5 is bent upwards to wrap the edge of the front frame 1.

The top of the horizontal part 9 of the middle frame 4 supports the liquid crystal panel 7, the vertical part 10 is connected with the diffusion plate 6, a certain gap is left between the liquid crystal panel 7 and the diffusion plate 6 for placing a circuit, the diffusion plate 6 is fixed between the fixed part 11 and the back plate 5, and the connecting part 8 of the middle frame 4 fixes the middle frame 4 and the back plate 5 through screws; the bending degree of the connecting part 8 is consistent with the angle between the limiting part 12 and the fixing part 11 of the elastic limiting block 2, the flexible circuit board 3 is arranged between the elastic limiting block 2 and the middle frame 4, the bending of the connecting part 8 protects the flexible circuit board 3 from being abraded and collided by the connecting part 8 between the limiting part 12 and the connecting part 8, and the flexible circuit board 3 can be better protected; the edge of the back plate 5 is bent upwards, the edge of the front frame 1 is coated, so that the front frame 1 and the back plate 5 are fixed more firmly, and dust is prevented from directly entering the liquid crystal module through a gap between the front frame 1 and the back plate 5.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. A liquid crystal module with an elastic limiting block comprises a front frame (1), a liquid crystal panel (7), a middle frame (4), a diffusion plate (6) and a back plate (5), wherein the front frame (1) is fixed on the back plate (5), an installation inner cavity is formed between the front frame (1) and the back plate (5) in a bent mode, one ends of the liquid crystal panel (7), the middle frame (4) and the diffusion plate (6) are all arranged in the installation inner cavity, and a flexible circuit board (3) arranged in the installation inner cavity is arranged on the liquid crystal panel (7); the method is characterized in that: the liquid crystal module is characterized in that the liquid crystal module further comprises an elastic limiting block (2) arranged in the installation inner cavity, the elastic limiting block (2) comprises a limiting part (12) and a fixing part (11) which are connected with each other, the fixing part (11) is connected with the inner wall of the front frame (1), and the outer end of the limiting part (12) is in contact with the flexible circuit board (3).

2. The liquid crystal module with the elastic limit block as set forth in claim 1, wherein: the fixing part (11) is provided with a bending structure consistent with the inner wall of the front frame (1), and the fixing part (11) is connected with the inner wall of the front frame (1) in a bonding mode.

3. The liquid crystal module with the elastic limit block as set forth in claim 1 or 2, wherein: a connecting corner smaller than 90 degrees is arranged between the limiting part (12) and the fixing part (11), and the limiting part (12) is in surface-to-surface contact with the bent flexible circuit board (3).

4. The liquid crystal module with the elastic limiting block as claimed in claim 3, wherein: the surface of the limiting part (12) in contact with the flexible circuit board (3) is provided with a limiting groove (13), and a limiting bulge arranged in the limiting groove (13) is arranged at a corresponding position on the flexible circuit board (3).

5. The liquid crystal module with the elastic limit block as set forth in claim 1, wherein: the middle frame (4) comprises a vertical part (10), a horizontal part (9) and a connecting part (8) which are sequentially connected, the connecting part (8) is fixed on the back plate (5) through a screw, the top surface of the horizontal part (9) is abutted against the bottom surface of the liquid crystal panel (7), and the liquid crystal panel (7) is fixed between the middle frame (4) and the front frame (1); the vertical part (10) is fixedly connected with the diffusion plate (6), and the diffusion plate (6) is fixed between the vertical part (10) and the back plate (5).

6. The liquid crystal module with the elastic limiting block as claimed in claim 5, wherein: the connecting part (8) is bent towards the horizontal part (9) and the bending angle of the connecting part is matched with the angle formed by the limiting part (12) and the fixing part (11) of the elastic limiting block (2).

7. The liquid crystal module with the elastic limiting block as claimed in claim 1, 2, 5 or 6, wherein: the front frame (1) is fixed on the back plate (5) through screws, and the edge of the back plate (5) is bent upwards to wrap the edge of the front frame (1).

8. The liquid crystal module with the elastic limiting block as claimed in claim 1, 2, 5 or 6, wherein: the elastic limiting block is a rubber block or a plastic block.