CN219916128U - Liquid crystal display backlight module convenient to assemble and liquid crystal display - Google Patents
Liquid crystal display backlight module convenient to assemble and liquid crystal display Download PDFInfo
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- CN219916128U CN219916128U CN202321015893.8U CN202321015893U CN219916128U CN 219916128 U CN219916128 U CN 219916128U CN 202321015893 U CN202321015893 U CN 202321015893U CN 219916128 U CN219916128 U CN 219916128U
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- liquid crystal
- crystal display
- middle frame
- backlight module
- light
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 53
- 238000009792 diffusion process Methods 0.000 claims abstract description 17
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
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- Liquid Crystal (AREA)
Abstract
The utility model relates to a liquid crystal display screen backlight module and a liquid crystal display screen, wherein the liquid crystal display screen backlight module comprises a back plate, a light enhancement module, a diffusion sheet, a light guide plate, a reflection sheet, a polaroid, a light source, a face shell and a middle frame fixed on the back plate; the polaroid, the intensifying module, the diffusion sheet, the light guide plate and the reflecting sheet are sequentially laminated on one side of the middle frame, which is away from the backboard; the light source comprises a circuit board and an LED lamp, the LED lamp is arranged on the circuit board and is electrically connected with the circuit board, and the circuit board is arranged on the inner side wall of the middle frame; the face shell is detachably buckled with the backboard to limit the polaroid, the intensifying module, the diffusion sheet, the light guide plate and the reflecting sheet which are stacked on the middle frame. According to the technical scheme, the backlight module is assembled more conveniently and rapidly, the assembly efficiency of the backlight module is improved, the phenomenon that the backlight module diverges and moves loose can be effectively avoided, and the service life of the liquid crystal display screen is prolonged.
Description
Technical Field
The utility model relates to the technical field of liquid crystal display, in particular to a backlight module of a liquid crystal display screen and the liquid crystal display screen, which are convenient to assemble.
Background
The liquid crystal display screen belongs to a flat panel display, can be used for screen display of a vehicle recorder, a vehicle-mounted display, household appliances and the like, and has the advantages of low power consumption, small volume and low radiation.
The backlight module is one of key components of the liquid crystal display. The function is to supply enough light source with uniform brightness and distribution to display image normally, the liquid crystal display screen is passive luminous element, the display screen is not luminous, but illuminated by the backlight system below, the backlight source and the liquid crystal display screen are combined to form a liquid crystal display module. Most of the existing backlight modules of the liquid crystal display screen are complex in assembly, complex in operation, and easy to loosen, and the performance reliability and the service life of the liquid crystal display screen are affected.
Disclosure of Invention
In order to solve the above technical problems or at least partially solve the above technical problems, the present utility model provides a backlight module for a liquid crystal display and a liquid crystal display with convenient assembly.
In a first aspect, the utility model provides a backlight module of a liquid crystal display screen, which is convenient to assemble, and comprises a back plate, a light enhancement module, a diffusion sheet, a light guide plate, a reflection sheet, a polaroid, a light source, a face shell and a middle frame fixed on the back plate;
the polaroid, the light increasing module, the diffusion sheet, the light guide plate and the reflection sheet are sequentially laminated on one side of the middle frame, which is away from the backboard;
the light source comprises a circuit board and an LED lamp, the LED lamp is arranged on the circuit board and is electrically connected with the circuit board, and the circuit board is arranged on the inner side wall of the middle frame;
the face shell is detachably buckled with the back plate so as to limit the polaroid, the light enhancement module, the diffusion sheet, the light guide plate and the reflecting sheet which are arranged on the middle frame in a stacked mode.
In one possible implementation manner, the light enhancement module comprises a first light enhancement piece and a second light enhancement piece, and the first light enhancement piece and the second light enhancement piece are sequentially arranged between the polarizer and the diffusion piece from top to bottom.
In one possible implementation manner, the upper end and the lower end of the light guide plate are both provided with protruding blocks, and the upper inner wall and the lower inner wall of the middle frame are both provided with notches matched with the protruding blocks.
In one possible implementation manner, a plurality of first mounting openings are distributed on the periphery of the back plate, a plurality of raised first clamping blocks are distributed on the periphery of the middle frame, and the first clamping blocks are matched with the first mounting openings.
In one possible implementation manner, a plurality of second mounting openings are distributed on the periphery of the face shell, a plurality of raised second clamping blocks are distributed on the periphery of the back plate, and the second clamping blocks are matched with the second mounting openings.
In one possible embodiment, the circuit board is adhered to the inner side wall of the middle frame by heat-conducting adhesive.
In a second aspect, the present utility model provides a liquid crystal display, including the backlight module for a liquid crystal display of the first aspect, and the liquid crystal display provided with the backlight module for a liquid crystal display.
In one possible implementation manner, the liquid crystal display further comprises a shading adhesive, wherein the shading adhesive is located between the liquid crystal panel and the polaroid and is adhered to the outer edge of the liquid crystal panel.
In one possible embodiment, the cover plate is fixed on the side of the face shell facing away from the middle frame.
In one possible embodiment, the cover plate is fixed to the side of the face housing facing away from the center frame by means of an optical adhesive.
Compared with the prior art, the technical scheme provided by the embodiment of the utility model has the following advantages:
the polarizer, the intensifying module, the diffusion sheet, the light guide plate and the reflection sheet are sequentially laminated on one side of the middle frame, deviating from the backboard, the circuit board provided with the LED lamp is arranged on the inner side wall of the middle frame, then the middle frame is fixed on the backboard, and then the face shell and the backboard are detachably buckled, so that the backlight module is assembled more conveniently and rapidly, the assembly efficiency of the backlight module is improved, the phenomenon that the backlight module diverges and moves loose is effectively avoided, and the service life of the liquid crystal display is prolonged.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
In the accompanying drawings:
fig. 1 is a schematic structural diagram of a backlight module of a liquid crystal display according to the present utility model.
Reference numerals:
10. a back plate; 10a, a first mounting port; 10b, a second clamping block; 20. a middle frame; 20a, a first clamping block; 30. a light increasing module; 31. a first light enhancement sheet; 32. a second light enhancement sheet; 40. a diffusion sheet; 50. a light guide plate; 50a, bumps; 60. a reflection sheet; 70. a polarizer; 80. a liquid crystal panel; 90. a face shell; 90a, a second mounting port; 100. shading adhesive; 200. a cover plate; 300. an optical adhesive;
Detailed Description
For a clearer understanding of technical features, objects and effects of the present utility model, a detailed description of embodiments of the present utility model will be made with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model, and do not indicate that the apparatus or element to be referred to must have specific directions, and thus should not be construed as limiting the present utility model.
It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or one or more intervening elements may also be present. The terms "first," "second," "third," and the like are used merely for convenience in describing the present utility model and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," etc. may explicitly or implicitly include one or more such features. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present utility model. It will be apparent, however, to one skilled in the art that the present utility model may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present utility model with unnecessary detail.
Referring to fig. 1, an embodiment of the present disclosure provides a backlight module of a liquid crystal display with convenient assembly, which includes a back plate 10, a light enhancement module 30, a diffusion sheet 40, a light guide plate 50, a reflection sheet 60, a polarizer 70, a light source, a face housing 90, and a middle frame 20 fixed on the back plate 10.
Specifically, the polarizer 70, the intensifying module 30, the diffusion sheet 40, the light guide plate 50 and the reflection sheet 60 are sequentially stacked on one side of the middle frame 20 facing away from the back plate 10; the light source comprises a circuit board and an LED lamp, the LED lamp is arranged on the circuit board and is electrically connected with the circuit board, and the circuit board is arranged on the inner side wall of the middle frame 20; the face housing 90 is detachably fastened to the back plate 10 to limit the polarizer 70, the intensifying module 30, the diffusion sheet 40, the light guide plate 50 and the reflection sheet 60, which are stacked on the middle frame 20.
In this embodiment, the polarizer 70, the intensifying module 30, the diffusion sheet 40, the light guide plate 50 and the reflection sheet 60 are sequentially laminated on one side of the middle frame 20 away from the back plate 10, and the circuit board with the LED lamp is mounted on the inner side wall of the middle frame 20, then the middle frame 20 is fixed on the back plate 10, and then the face shell 90 and the back plate 10 are detachably buckled, so that the backlight module is assembled more conveniently and rapidly, the assembly efficiency of the backlight module is improved, the phenomenon that the backlight module diverges, shifts and loosens can be effectively avoided, and the service life of the liquid crystal display screen is prolonged.
In addition, in the present embodiment, the back plate 10 and the face shell 90 are made of iron materials, so that heat conduction can be enhanced, and heat dissipation can be accelerated.
In one possible embodiment, the light enhancement module 30 includes a first light enhancement layer 31 and a second light enhancement layer 32, where the first light enhancement layer 31 and the second light enhancement layer 32 are sequentially disposed between the polarizer 70 and the diffuser 40 from top to bottom. Therefore, the first light enhancement sheet 31 and the second light enhancement sheet 32 are utilized to reflect light rays emitted by the LED lamps, so that the brightness of the whole display screen is consistent, and the phenomenon of inconsistent brightness of the display screen is avoided.
In one possible embodiment, the upper and lower ends of the light guide plate 50 are provided with protrusions 50a, and the upper and lower inner walls of the middle frame 20 are provided with notches (not shown) adapted to the protrusions 50 a. In this way, the protruding blocks at the upper end and the lower end of the light guide plate 50 extend into the notches of the upper inner wall and the lower inner wall of the middle frame 20, so that the light guide plate 50 is mounted on the rubber frame, and the structure is simple, and no fasteners (such as screws, bolts and the like) are needed to assist in fixing.
In one possible embodiment, the outer periphery of the back plate 10 is distributed with a plurality of first mounting openings 10a, the outer periphery of the middle frame 20 is distributed with a plurality of raised first clamping blocks 20a, and the first clamping blocks 20a are matched with the first mounting openings 10 a. So, utilize a plurality of first installing ports 10a of backplate 10 periphery distribution and a plurality of first fixture blocks 20a looks block of center 20 periphery to realize can dismantle center 20 to connect on backplate 10, compare traditional connected mode that adopts bolt or screw, the appearance is more pleasing to the eye, easy dismounting.
In one possible embodiment, the outer periphery of the face shell 90 is distributed with a plurality of second mounting openings 90a, the outer periphery of the back plate 10 is distributed with a plurality of raised second clamping blocks 10b, and the second clamping blocks 10b are matched with the second mounting openings 90 a. So, utilize a plurality of second mounting ports 90a of face-piece 90 periphery distribution and a plurality of second fixture blocks 10b looks block of gum periphery to realize can dismantle face-piece 90 to connect on backplate 10, compare traditional connected mode that adopts bolt or screw, the appearance is more pleasing to the eye, carries out dismouting more easily, makes things convenient for follow-up maintenance or maintenance.
In one possible embodiment, the circuit board is adhered to the inner side wall of the middle frame 20 by a heat conductive adhesive. It should be noted that the heat-conducting adhesive is a double-sided adhesive capable of conducting heat, but is not limited thereto.
The utility model also provides a liquid crystal display screen, which comprises the liquid crystal display screen backlight module with convenient assembly and the liquid crystal panel 80 arranged on the front side of the polarizer 70.
In one possible embodiment, the liquid crystal display device further includes a light shielding glue 100, wherein the light shielding glue 100 is located between the liquid crystal panel 80 and the polarizer 70 and is adhered to the outer edge of the liquid crystal panel 80. Thus, the light guide device can perform a partial or complete shading function on the light guided to the liquid crystal panel 80, and avoid light leakage caused by light emitted from two sides of the liquid crystal display
In one possible embodiment, the cover 200 is further included, and the cover 200 is fixed to a side of the panel housing 90 facing away from the middle frame 20. Specifically, the cover 200 is fixed on the side of the face shell 90 facing away from the middle frame 20 through the optical cement 300. It should be noted that, the cover plate 200 is made of glass material, which not only can satisfy the normal display of the liquid crystal panel 80, but also can protect the liquid crystal panel 80 to avoid the problems of scratching, cracking, etc.
It is to be understood that the above examples only represent preferred embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the utility model; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (10)
1. The backlight module of the liquid crystal display screen is convenient to assemble and is characterized by comprising a back plate, a light enhancement module, a diffusion sheet, a light guide plate, a reflecting sheet, a polaroid, a light source, a face shell and a middle frame fixed on the back plate;
the polaroid, the light increasing module, the diffusion sheet, the light guide plate and the reflection sheet are sequentially laminated on one side of the middle frame, which is away from the backboard;
the light source comprises a circuit board and an LED lamp, the LED lamp is arranged on the circuit board and is electrically connected with the circuit board, and the circuit board is arranged on the inner side wall of the middle frame;
the face shell is detachably buckled with the back plate so as to limit the polaroid, the light enhancement module, the diffusion sheet, the light guide plate and the reflecting sheet which are arranged on the middle frame in a stacked mode.
2. The backlight module of claim 1, wherein the light enhancement module comprises a first light enhancement sheet and a second light enhancement sheet, and the first light enhancement sheet and the second light enhancement sheet are sequentially arranged between the polarizer and the diffusion sheet from top to bottom.
3. The backlight module of claim 1, wherein the upper and lower ends of the light guide plate are provided with protrusions, and the upper and lower inner walls of the middle frame are provided with notches adapted to the protrusions.
4. The backlight module of claim 1, wherein a plurality of first mounting openings are distributed on the periphery of the back plate, a plurality of raised first clamping blocks are distributed on the periphery of the middle frame, and the first clamping blocks are matched with the first mounting openings.
5. The backlight module of the liquid crystal display screen with convenient assembly according to claim 1, wherein a plurality of second mounting openings are distributed on the periphery of the face shell, a plurality of raised second clamping blocks are distributed on the periphery of the back plate, and the second clamping blocks are matched with the second mounting openings.
6. The backlight module of claim 1, wherein the circuit board is adhered to the inner side wall of the middle frame by heat-conducting adhesive.
7. A liquid crystal display, comprising the conveniently assembled liquid crystal display backlight module according to any one of claims 1 to 6 and a liquid crystal panel disposed on the front side of the polarizer.
8. The liquid crystal display of claim 7, further comprising a light shielding glue between the liquid crystal panel and the polarizer and adhered to an outer edge of the liquid crystal panel.
9. The liquid crystal display of claim 7, further comprising a cover plate secured to a side of the face housing facing away from the center frame.
10. The liquid crystal display of claim 9, wherein the cover plate is fixed on a side of the face housing facing away from the middle frame by optical cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321015893.8U CN219916128U (en) | 2023-04-28 | 2023-04-28 | Liquid crystal display backlight module convenient to assemble and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321015893.8U CN219916128U (en) | 2023-04-28 | 2023-04-28 | Liquid crystal display backlight module convenient to assemble and liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219916128U true CN219916128U (en) | 2023-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321015893.8U Active CN219916128U (en) | 2023-04-28 | 2023-04-28 | Liquid crystal display backlight module convenient to assemble and liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219916128U (en) |
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2023
- 2023-04-28 CN CN202321015893.8U patent/CN219916128U/en active Active
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