CN216772155U

CN216772155U - anti-ESD device for LCM (liquid crystal module) without iron frame backlight

Info

Publication number: CN216772155U
Application number: CN202123279854.2U
Authority: CN
Inventors: 陈博; 阳炼丹
Original assignee: Shenzhen DJN Optronics Technology Co Ltd
Current assignee: Shenzhen DJN Optronics Technology Co Ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-06-17
Anticipated expiration: 2031-12-24

Abstract

The utility model relates to the field of LCM ESD (electro-static discharge) resistant devices, and discloses an ESD resistant device for an LCM (liquid crystal display module) without a bezel backlight, which comprises a shell, wherein a conductive shading adhesive tape is arranged on the shell, an LCM FPCA/PCBA GND is fixedly arranged in the shell, a plug-in port electrically connected with the LCM FPCA/PCBA GND is formed in the shell, the LCM FPCA/PCBA GND and the conductive shading adhesive tape are connected through an LED backlight strip with the GND, and compared with the traditional improved Panel & IC ESD resistant capability, the improved backlight design has low cost and small LCM variation coefficient.

Description

anti-ESD device for LCM (liquid crystal module) without iron frame backlight

Technical Field

The utility model relates to the field of LCM ESD (electro-static discharge) resistant devices, in particular to an ESD resistant device for LCM without iron frame backlight.

Background

The liquid crystal display screen provides great convenience for the life of people. Electronic devices with liquid crystal displays, such as smart phones, tablet computers, and the like, have been fully incorporated into mass lives. More and more products use liquid crystal display screens, but people often consider the structure and cost factors of the LCM in the design process, the LCM without the iron frame backlight is used, the LCM without the iron frame backlight has poor ESD resistance, the problems of screen display abnormity and the like frequently occur during ESD test, and after analysis, a Panel GOP line is damaged by ESD, and a driving IC is damaged by ESD, so that the ESD resistance device for the LCM without the iron frame backlight is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the deficiencies of the prior art, the present invention provides an ESD protection device for LCM without bezel backlight, which solves the above problems.

(II) technical scheme

In order to achieve the above purpose, the utility model provides the following technical scheme: the utility model provides an anti ESD device that LCM that no chase was shaded was used, includes the shell, be provided with electrically conductive shading sticky tape on the shell, the inside fixed mounting of shell has LCM FPCA/PCBA GND, seted up on the shell with LCM FPCA/PCBA GND electric connection interface together, connect through taking GND LED backlight strip between LCM FPCA/PCBA GND and the electrically conductive shading sticky tape, compare in traditional improvement Panel & IC anti-ESD ability, it is little that the improvement backlight design has with low costs LCM variation coefficient.

Preferably, the housing is provided with an opening communicated with the socket, and a fixing device for fixing the plug is arranged in the opening.

Preferably, the fixing device comprises two fixing blocks, inner wall grooves are formed in the inner walls of the upper side and the lower side of the opening, sliding blocks are fixedly mounted on the positions, corresponding to the inner wall grooves, of the fixing blocks, the sliding blocks are matched with the inner wall grooves, and the sliding blocks are movably clamped with the inner wall grooves.

Preferably, fixed mounting has the spring on the one side inner wall that the slider was kept away from to inner wall slot, the spring is in the same place with slider fixed connection, and when the plug passed the opening and inserted the interface inside, need slide the fixed block of both sides to the one side that deviates from each other, then the spring kick-backs, and the fixed block of drive both sides blocks the plug, accomplishes fixedly, and this scheme can effectually avoid the plug to drop.

Preferably, the one end that two sliders of downside are close to each other all articulates there is the hinge bar, the hinge bar one end that is close to each other of both sides is articulated together, when the plug inserts interface inside, two articulated rod articulated one end together can block the plug from the below fixed, the fixing to the plug has been improved greatly, and when needs take out the plug, slide the fixed block of both sides to deviating from one side each other, then interval grow between two fixed blocks, contained angle grow between two hinge bars, the fixed block is no longer laminated with the lateral wall of plug, two articulated rod articulated one end together no longer with the bottom laminating of plug, then take out the plug can, this kind of setting of this scheme is convenient for take out fixed plug, and convenient to use.

(III) advantageous effects

Compared with the prior art, the utility model provides an ESD (electro-static discharge) resistant device for LCM (liquid crystal module) without iron frame backlight, which has the following beneficial effects:

1. according to the ESD resistant device for the LCM without the iron frame backlight, the LCM FPCA/PCBA GND and the conductive shading adhesive tape are connected through the LED backlight strip with the GND, and compared with the traditional improved Panel & IC ESD resistant capability, the improved backlight design has the advantages of low cost and small LCM variation coefficient.

2. This anti ESD device that LCM that no chase is shaded was used, when the plug passed the opening and inserted the interface inside, need slide the fixed block of both sides to the one side that deviates from each other, then the spring kick-backs, and the fixed block of drive both sides blocks the plug, accomplishes fixedly, and this scheme can effectually avoid the plug to drop.

3. This anti ESD device that LCM that no chase is shaded was used, when needs take out the plug, slide the fixed block of both sides to deviating from one side each other, then interval grow between two fixed blocks, contained angle grow between two hinge bars, the fixed block no longer with the lateral wall laminating of plug, two hinge bars articulated one end together no longer with the bottom laminating of plug, then take out the plug can, such setting of this scheme is convenient for take out fixed plug, facilitate the use.

Drawings

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

FIG. 2 is a schematic front cross-sectional view of the present invention;

FIG. 3 is a schematic side cross-sectional view of the present invention.

In the figure: 1. a housing; 2. an opening; 3. an interface; 4. a fixed block; 5. a conductive shading tape; 6. an inner wall groove; 7. a slider; 8. a hinged lever; 9. a spring; 10. LCM FPCA/PCBA GND; 11. with GND LED backlight bar.

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. 1-3, an ESD protection device for an LCM of a bezel-free backlight includes a housing 1, a conductive light-shielding tape 5 is disposed on the housing 1, an LCM FPCA/PCBA GND10 is fixedly mounted inside the housing 1, a socket 3 electrically connected to the LCM FPCA/PCBA GND10 is disposed on the housing 1, and the LCM FPCA/PCBA GND10 is connected to the conductive light-shielding tape 5 through a back light bar 11 with a GND LED.

Furthermore, an opening 2 communicated with the plug interface 3 is formed in the shell 1, and a fixing device for fixing the plug is arranged in the opening 2.

Further, fixing device includes two fixed blocks 4, has all seted up inner wall groove 6 on the upper and lower both sides inner wall of opening 2, and fixed mounting has slider 7 on the position that fixed block 4 corresponds inner wall groove 6, and slider 7 and inner wall groove 6 looks adaptation, slider 7 and inner wall groove 6 activity joint are in the same place.

Further, fixed mounting has spring 9 on the inner wall of one side that slider 7 was kept away from to inner wall slot 6, and spring 9 is in the same place with slider 7 fixed connection, and when the plug passed opening 2 and inserted interface 3 inside, need slide fixed block 4 of both sides to the one side that deviates from each other, then spring 9 kick-backs, and fixed block 4 of drive both sides blocks the plug, accomplishes fixedly, and this scheme can effectually avoid the plug to drop.

Further, the one end that two sliders 7 of downside are close to each other all articulates there is hinge bar 8, hinge bar 8 of both sides is close to each other one end articulated together, when the plug inserts interface 3 inside, two articulated bar 8 articulated one end together can block the plug from the below fixed, the fixing to the plug has been improved greatly, and when needs take out the plug, 4 fixed blocks of both sides slide to one side that deviates from each other, then interval grow between two fixed blocks 4, contained angle grow between two articulated bar 8, fixed block 4 no longer with the lateral wall laminating of plug, two articulated bar 8 articulated one end together no longer with the bottom laminating of plug, then take out the plug can, this scheme such setting is convenient for take out fixed plug, and convenient to use.

The working principle is as follows: when the plug passes opening 2 and inserts 3 insides of interface, need slide fixed block 4 of both sides to the one side that deviates from each other, then spring 9 kick-backs, and the fixed block 4 of drive both sides blocks the plug, accomplishes fixedly, and this scheme can effectually avoid the plug to drop.

When the plug inserts 3 inside of interface, two articulated arms 8 articulated one end together can block the plug fixedly from the below, the fixing to the plug has been improved greatly, and when needs take out the plug, slide fixed block 4 of both sides to one side that deviates from each other, then interval grow between two fixed blocks 4, contained angle grow between two articulated arms 8, fixed block 4 no longer with the lateral wall laminating of plug, two articulated arms 8 articulated one end together no longer with the bottom laminating of plug, then take out the plug can, such setting of this scheme is convenient for take out fixed plug, and convenient to use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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 anti-ESD device for LCM without iron frame backlight comprises a shell (1), wherein a conductive shading adhesive tape (5) is arranged on the shell (1), and the anti-ESD device is characterized in that: the inner fixed mounting of the shell (1) is provided with an LCM FPCA/PCBA GND (10), the shell (1) is provided with a plug-in interface (3) which is electrically connected with the LCM FPCA/PCBA GND (10), and the LCM FPCA/PCBA GND (10) and the conductive shading adhesive tape (5) are connected through a GND LED backlight strip (11).

2. The ESD protection device for LCM without bezel backlight of claim 1, wherein: an opening (2) communicated with the plug interface (3) is formed in the shell (1), and a fixing device used for fixing the plug is arranged in the opening (2).

3. The ESD protection device for LCM of frameless backlight of claim 2, wherein: fixing device includes two fixed blocks (4), inner wall groove (6) have all been seted up on the upper and lower both sides inner wall of opening (2), fixed mounting has slider (7) on the position that fixed block (4) correspond inner wall groove (6), slider (7) and inner wall groove (6) looks adaptation, slider (7) are in the same place with inner wall groove (6) activity joint.

4. The ESD protection device for LCM without bezel backlight of claim 3, wherein: and a spring (9) is fixedly installed on the inner wall of one side of the inner wall groove (6) far away from the sliding block (7), and the spring (9) is fixedly connected with the sliding block (7).

5. The ESD protection device for LCM without bezel backlight as claimed in claim 4, wherein: the one end that two sliders (7) of downside are close to each other all articulates there is articulated pole (8), and the one end that articulated pole (8) of both sides are close to each other articulates together.