CN212031889U - Liquid crystal module with moisture-proof function - Google Patents
Liquid crystal module with moisture-proof function Download PDFInfo
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- CN212031889U CN212031889U CN202020672525.0U CN202020672525U CN212031889U CN 212031889 U CN212031889 U CN 212031889U CN 202020672525 U CN202020672525 U CN 202020672525U CN 212031889 U CN212031889 U CN 212031889U
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- circuit board
- backlight
- liquid crystal
- crystal module
- moisture
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Abstract
A liquid crystal module with damp-proof function comprises a circuit board, a backlight assembly, a display screen and a protective sleeve member, wherein the circuit board is provided with a plurality of anti-skid grooves and a plurality of positioning holes, the backlight assembly comprises a backlight plate, a plurality of positioning columns, a plurality of fastening blocks and a plurality of anti-skid bulges, the display screen is arranged on the backlight plate, the protective sleeve member comprises a cover plate, an adhesive layer and a sealing colloid, when the circuit board and the backlight plate are arranged together, the positioning columns are respectively penetrated through the positioning holes to realize positioning, the fastening blocks are used for fastening the circuit board, so that the anti-skid bulges respectively fall into the anti-skid grooves, the circuit board and the backlight plate are accurately assembled by utilizing a clamping mode, the cover plate and the display screen are not damaged in the assembling process, the adhesive layer is respectively bonded with the cover plate and the display screen, and the sealing colloid is used for bonding the cover plate and the backlight, thereby preventing the vapor from entering the display screen and the backlight plate and achieving the aim of moisture prevention.
Description
Technical Field
The utility model relates to a liquid crystal display's technical field especially relates to a liquid crystal module that possesses dampproofing function.
Background
The liquid crystal display technology is a technology that under the action of an electric field, the arrangement direction of liquid crystal molecules is changed to change (modulate) the light transmittance of an external light source to complete electro-optical conversion, and different excitations of R, G, B tricolor signals are utilized to complete color reproduction of a time domain and a space domain through a red-green-blue tricolor filter film.
For a liquid crystal display, the display component is a liquid crystal module, and the conventional liquid crystal module comprises a screen, a backlight module and a circuit board. The backlight module provides a backlight source, and the liquid crystal in the screen modulates the light source, thereby displaying a pattern in the screen. However, the conventional liquid crystal module has the following problems:
firstly, the conventional liquid crystal module cannot be suitable for a high-humidity use environment, and the liquid crystal molecules change the direction by using the stimulation of current so as to modulate a light source, but the conventional liquid crystal module cannot effectively isolate water vapor at present, so that once the water vapor is applied to a liquid crystal screen, the use effect of the liquid crystal screen is affected, and the service life of the liquid crystal module can be shortened;
secondly, in the conventional liquid crystal module, the backlight module is fixed on the circuit board by screws, but the screwing of the screws is not only difficult to control the force, but if the force is too large, the backlight module or the circuit board is easily damaged, and the time and the labor are wasted;
thirdly, when the backlight module is mounted on the circuit board, an effective positioning structure is lacked, which easily causes mounting dislocation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the weak point among the prior art, providing a LCD module that possesses dampproofing function, can effectively keep apart steam, can also effectively prevent simultaneously that LCD module from being damaged in assembling process, the equipment is simple and easy and can also ensure that LCD module can be assembled by the accuracy moreover.
The purpose of the utility model is realized through the following technical scheme:
a liquid crystal module with a moisture-proof function includes:
the anti-skidding positioning device comprises a circuit board, a positioning mechanism and a positioning mechanism, wherein a plurality of anti-skidding grooves and a plurality of positioning holes are formed in the circuit board;
the backlight assembly comprises a backlight plate, a plurality of positioning columns, a plurality of fastening blocks and a plurality of anti-skid protrusions, wherein the backlight plate is provided with accommodating grooves, the positioning columns are arranged on the backlight plate, the fastening blocks are arranged on the backlight plate, the anti-skid protrusions are arranged on the fastening blocks in a one-to-one correspondence manner, the circuit board is arranged on the backlight plate, so that the positioning columns are used for penetrating through the positioning holes in a one-to-one correspondence manner, the fastening blocks are clamped with the circuit board, and the anti-skid protrusions fall into the anti-skid grooves in a one-to-one correspondence manner;
the display screen is accommodated in the accommodating groove; and
the protective sleeve piece comprises a cover plate, an adhesive layer and sealing colloid, wherein the adhesive layer is arranged on the display screen, the cover plate is attached to the adhesive layer, and the sealing colloid is used for being bonded with the cover plate and the backlight plate respectively so as to enable the cover plate to be sealed with the accommodating groove.
In one embodiment, the liquid crystal module with the moisture-proof function further comprises a display FPC and a light source FPC, wherein the display FPC is respectively connected with the circuit board and the display screen, and the light source FPC is respectively connected with the circuit board and the backlight panel.
In one embodiment, the sealing colloid comprises a sealing ring and a sealing strip, and the sealing strip is used for coating the display FPC together with the sealing ring.
In one embodiment, a sealing boss is arranged on the sealing ring, and the sealing boss abuts against the light source FPC.
In one embodiment, the liquid crystal module with the moisture-proof function further comprises a double-sided adhesive layer, and the double-sided adhesive layer is respectively bonded with the circuit board and the backlight board.
In one embodiment, the adhesive layer is an OCA optical gel.
In one embodiment, the end of the positioning column is provided with an inclined surface.
In one embodiment, the backlight plate and the positioning column are of an integrally formed structure.
In one embodiment, the anti-slip bulge is positioned on one side surface of the fastening block abutting against the circuit board.
In one embodiment, the circuit board is further provided with a limiting groove, and the fastening block is located in the limiting groove.
Compared with the prior art, the utility model discloses at least, following advantage has:
the utility model discloses a liquid crystal module with dampproofing function, including the circuit board, the external member that is shaded, display screen and anti-skidding casing spare, a plurality of antiskid groove and a plurality of locating hole have been seted up on the circuit board, the external member that is shaded includes the board in a poor light, a plurality of reference column, a plurality of straining piece and a plurality of antiskid bulge, the display screen is installed on the board in a poor light, the lag spare includes the apron, adhesive layer and sealing colloid, when the circuit board is installed together with the board in a poor light, each reference column is used for wearing to establish each locating hole respectively and fixing a position, each straining piece is used for straining the circuit board, so that each antiskid bulge falls into each antiskid groove respectively, thereby realize the purpose that the circuit board is assembled together with the board in a mode of joint accurately, and can not damaged, the adhesive layer is used for bonding apron and display screen, the sealing colloid is used for bonding apron, thereby can effectively isolated steam enter into the inside of display screen and board in a poor light, reach damp-proofing purpose.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a liquid crystal module with a moisture-proof function according to an embodiment of the present invention;
FIG. 2 is a schematic view of a portion of the circuit board shown in FIG. 1;
FIG. 3 is an enlarged schematic view of FIG. 1 at A;
fig. 4 is a schematic view of the assembly structure shown in fig. 1.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It is noted that as used herein, reference to an element being "connected" to another element also means that the element is "in communication" with the other element, and fluid can be in exchange communication between the two.
Please refer to fig. 1, a liquid crystal module 10 with moisture-proof function, including circuit board 100, backlight assembly 200, display screen 300 and protective sleeve 400, backlight assembly 200 is buckled with circuit board 100 and fixed together, display screen 300 is installed on backlight assembly 200, protective sleeve 400 is installed on backlight assembly 200, so that display screen 300 is in a sealed state, the utility model discloses a liquid crystal module 10 with moisture-proof function, protective sleeve 400 can prevent effectively that steam from entering into inside display screen 300 and backlight assembly 200, and circuit board 100 and backlight assembly 200 adopt the mounting means of buckle simultaneously, consequently can prevent effectively that circuit board 100 or backlight assembly 200 from being damaged, and the equipment is simple and easy, is provided with location structure on the backlight assembly 200 simultaneously for backlight assembly 200 and circuit board 100 can be installed accurately.
Referring to fig. 1 to 3, a plurality of anti-slip grooves 110 and a plurality of positioning holes 120 are formed on a circuit board 100, a backlight assembly 200 includes a backlight plate 210, a plurality of positioning columns 220, a plurality of fastening blocks 230 and a plurality of anti-slip protrusions 240, a receiving groove 211 is formed on the backlight plate 210, each positioning column 220 is disposed on the backlight plate 210, each fastening block 230 is disposed on the backlight plate 210, each anti-slip protrusion 240 is disposed on each fastening block 230 in a one-to-one correspondence manner, the circuit board 100 is disposed on the backlight plate 210, so that each positioning column 220 is disposed to penetrate through each positioning hole 120 in a one-to-one correspondence manner, each fastening block 230 is clamped to the circuit board 100, and each anti-slip protrusion 240 falls into each anti-slip groove 110 in a one-.
It should be noted that, the receiving groove 211 formed on the backlight plate 210 is used for mounting the display screen 300, in order to mount and fix the backlight plate 210 on the circuit board 100, a plurality of positioning holes 120 are formed on the circuit board 100, and a plurality of positioning columns 220 are arranged on the backlight plate 210, so that when the backlight plate 210 is mounted on the circuit board 100, as long as the plurality of positioning columns 220 are respectively inserted into the plurality of positioning holes 120, positioning can be achieved, and the backlight plate 210 can be accurately mounted with the circuit board 100; further, the fastening blocks 230 are all fastened to the circuit board 100, specifically, in order to mount and fix the backlight plate 210 and the circuit board 100 together, the fastening blocks 230 are used to fasten the circuit board 100, the fastening block 230 is provided with a locking step, when the circuit board 100 is pressed close to the backlight plate 210, the fastening block 230 will expand outward and deform, so that the circuit board 100 falls into the fastening step, when the circuit board 100 falls into the clamping step, the fastening block 230 will be restored to the initial state by deformation, and at this time, the clamping step will clamp the circuit board 100, thus, the backlight plate 210 and the circuit board 100 are fastened and fixed together by the fastening block 230 without using other tools such as locking screws, therefore, the circuit board 100 and the backlight plate 210 can be prevented from being damaged during installation, and the clamping installation mode has simple steps and convenient installation; further, after the circuit board 100 falls into the clamping step on the fastening block 230, the anti-slip protrusions 240 fall into the anti-slip grooves 110 on the circuit board 100, and the anti-slip grooves 110 can limit and fix the anti-slip protrusions 240, so that the possibility that the fastening block 230 slips off from the circuit board 100 can be reduced, and the backlight plate 210 can be firmer with the circuit board 100; in one embodiment, the end of the positioning column 220 is provided with an inclined plane 221, and the inclined plane 221 is favorable for the correct installation of the circuit board 100 and the backlight panel 210; in one embodiment, the backlight plate 210 and the positioning column 220 are integrally formed, and the integrally formed structure is favorable for the structural strength of the backlight plate 210 and the positioning column 220; in one embodiment, the anti-slip protrusions 240 are located on a side surface of the fastening block 230 abutting against the circuit board 100, when the circuit board 100 is clamped into the clamping step, one side surface of the fastening block 230 abuts against the bottom of the circuit board 100, and the anti-slip protrusions 240 fall into the anti-slip grooves 110 formed on the circuit board 100.
Referring to fig. 1 and 4, the display screen 300 is accommodated in the accommodating groove 211, the protective cover 400 includes a cover plate 410, an adhesive layer 420 and a sealing adhesive 430, the adhesive layer 420 is disposed on the display screen 300, the cover plate 410 is attached to the adhesive layer 420, and the sealing adhesive 430 is used for respectively adhering to the cover plate 410 and the backlight plate 210, so that the cover plate 410 seals the accommodating groove 211.
It should be noted that, the back light plate 210 is provided with the receiving groove 211, the display screen 300 is installed in the receiving groove 211, and then the cover plate 410 is bonded to the display screen 300 by the adhesive layer 420, in one embodiment, the adhesive layer 420 is an OCA optical adhesive, the OCA optical adhesive is a special adhesive for bonding a transparent optical element, the OCA optical adhesive has colorless transparency, light transmittance of more than 90%, good bonding strength, and can be cured at room temperature or at intermediate temperature, and has the characteristics of small curing shrinkage, and the like, so that the definition of the display screen 300 can be maintained even if the cover plate 410 is covered with the OCA optical adhesive, and meanwhile, the OCA optical adhesive is also used for extruding air between the cover plate 410 and the display screen 300, thereby reducing water vapor in the receiving groove 211 and maintaining dryness; further, in order to seal the accommodating groove 211 by the cover plate 410, so that the display screen 300 can be in a relatively sealed state, the sealant 430 is respectively bonded to the cover plate 410 and the backlight plate 210, in an embodiment, the sealant 430 is an adhesive, so that the cover plate 410 seals the accommodating groove 211 on the backlight plate 210 by the adhesive, so that the external moisture enters the accommodating groove 211, that is, the moisture-proof function is provided.
Referring to fig. 1 and 4 again, the liquid crystal module 10 with moisture-proof function further includes a display FPC500 and a light source FPC600, the display FPC500 is connected to the circuit board 100 and the display screen 300, respectively, and the light source FPC600 is connected to the circuit board 100 and the backlight 210, respectively. It should be noted that the FPC is a flexible printed circuit board, and the flexible printed circuit board is a flexible printed circuit board made of a polyimide or polyester film as a base material, which has high reliability and is excellent in flexibility, and has the characteristics of high wiring density, light weight, thin thickness, and good bending property.
Referring to fig. 4 again, the sealant 430 includes a sealing ring 431 and a sealing strip 432, and the sealing strip 432 and the sealing ring 431 together cover the display FPC 500. It should be noted that the display FPC500 is used for connecting the circuit board 100 and the display screen 300, the display screen 300 is installed in the accommodating groove 211, and the accommodating groove 211 needs to be kept in a sealed state, so the display FPC500 is coated by the sealing ring 431 and the sealing strip 432 together, so that the accommodating groove 211 can be kept in a sealed state, thereby preventing water vapor from entering the accommodating groove 211 and damaging the inside display screen 300 and the inside backlight panel 210, in an embodiment, the sealing strip 432 and the sealing ring 431 are both sealing glue.
Referring to fig. 4 again, the sealing ring 431 is provided with a sealing boss 431a, and the sealing boss 431a abuts against the light source FPC 600. Since the light source FPC600 is used to connect the circuit board 100 and the backlight 210 and the housing groove 211 is formed in the backlight 210, the sealing boss 431a is required to close the gap between the light source FPC600 and the backlight 210 in order to maintain the sealed state of the housing groove 211.
Referring to fig. 1 again, the liquid crystal module 10 with moisture-proof function further includes a double-sided adhesive layer 700, and the double-sided adhesive layer 700 is adhered to the circuit board 100 and the backlight panel 210 respectively. It should be noted that the double-sided adhesive layer 700 is used to bond the circuit board 100 and the backlight plate 210, so as to prevent the middle portion of the circuit board 100 from deforming due to gravity, thereby improving the structural strength of the circuit board 100 and the backlight plate 210.
Referring to fig. 2 again, the circuit board 100 is further provided with a limiting groove 130, and the fastening block 230 is located in the limiting groove 130. It should be noted that, when the fastening block 230 fastens the circuit board 100, the fastening block 230 falls into the limiting groove 130 formed on the circuit board 100, which is beneficial to positioning the circuit board 100 and the backlight plate 210 and also enhances the stability of the circuit board 100 and the backlight plate 210.
Compared with the prior art, the utility model discloses at least, following advantage has:
the utility model discloses a liquid crystal module with dampproofing function, including the circuit board, the external member that is shaded, display screen and anti-skidding casing spare, a plurality of antiskid groove and a plurality of locating hole have been seted up on the circuit board, the external member that is shaded includes the board in a poor light, a plurality of reference column, a plurality of straining piece and a plurality of antiskid bulge, the display screen is installed on the board in a poor light, the lag spare includes the apron, adhesive layer and sealing colloid, when the circuit board is installed together with the board in a poor light, each reference column is used for wearing to establish each locating hole respectively and fixing a position, each straining piece is used for straining the circuit board, so that each antiskid bulge falls into each antiskid groove respectively, thereby realize the purpose that the circuit board is assembled together with the board in a mode of joint accurately, and can not damaged, the adhesive layer is used for bonding apron and display screen, the sealing colloid is used for bonding apron, thereby can effectively isolated steam enter into the inside of display screen and board in a poor light, reach damp-proofing purpose.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a liquid crystal module that possesses dampproofing function which characterized in that includes:
the anti-skidding positioning device comprises a circuit board, a positioning mechanism and a positioning mechanism, wherein a plurality of anti-skidding grooves and a plurality of positioning holes are formed in the circuit board;
the backlight assembly comprises a backlight plate, a plurality of positioning columns, a plurality of fastening blocks and a plurality of anti-skid protrusions, wherein the backlight plate is provided with accommodating grooves, the positioning columns are arranged on the backlight plate, the fastening blocks are arranged on the backlight plate, the anti-skid protrusions are arranged on the fastening blocks in a one-to-one correspondence manner, the circuit board is arranged on the backlight plate, so that the positioning columns are used for penetrating through the positioning holes in a one-to-one correspondence manner, the fastening blocks are clamped with the circuit board, and the anti-skid protrusions fall into the anti-skid grooves in a one-to-one correspondence manner;
the display screen is accommodated in the accommodating groove; and
the protective sleeve piece comprises a cover plate, an adhesive layer and sealing colloid, wherein the adhesive layer is arranged on the display screen, the cover plate is attached to the adhesive layer, and the sealing colloid is used for being bonded with the cover plate and the backlight plate respectively so as to enable the cover plate to be sealed with the accommodating groove.
2. The liquid crystal module with moisture-proof function according to claim 1, further comprising a display FPC and a light source FPC, wherein the display FPC is connected to the circuit board and the display screen, respectively, and the light source FPC is connected to the circuit board and the backlight board, respectively.
3. The liquid crystal module with the moisture-proof function according to claim 2, wherein the sealant comprises a sealing ring and a sealing strip, and the sealing strip is used for wrapping the display FPC together with the sealing ring.
4. The liquid crystal module with the moisture-proof function according to claim 3, wherein a sealing boss is arranged on the sealing ring, and the sealing boss abuts against the light source FPC.
5. The liquid crystal module with moisture-proof function according to claim 1, further comprising a double-sided adhesive layer, wherein the double-sided adhesive layer is adhered to the circuit board and the backlight board respectively.
6. The liquid crystal module with moisture-proof function as claimed in claim 1, wherein the adhesive layer is OCA optical gel.
7. The liquid crystal module with moisture-proof function as claimed in claim 1, wherein the end of the positioning column is provided with an inclined surface.
8. The liquid crystal module with moisture-proof function as claimed in claim 1, wherein the backlight plate and the positioning post are integrally formed.
9. The liquid crystal module with moisture-proof function as claimed in claim 1, wherein the anti-slip protrusion is located on a side surface of the fastening block abutting against the circuit board.
10. The liquid crystal module with the moisture-proof function according to claim 1, wherein a limiting groove is further formed on the circuit board, and the fastening block is located in the limiting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020672525.0U CN212031889U (en) | 2020-04-27 | 2020-04-27 | Liquid crystal module with moisture-proof function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020672525.0U CN212031889U (en) | 2020-04-27 | 2020-04-27 | Liquid crystal module with moisture-proof function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212031889U true CN212031889U (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020672525.0U Active CN212031889U (en) | 2020-04-27 | 2020-04-27 | Liquid crystal module with moisture-proof function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212031889U (en) |
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2020
- 2020-04-27 CN CN202020672525.0U patent/CN212031889U/en active Active
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