CN221079138U - Backlight module of liquid crystal display screen - Google Patents
Backlight module of liquid crystal display screen Download PDFInfo
- Publication number
- CN221079138U CN221079138U CN202322589010.0U CN202322589010U CN221079138U CN 221079138 U CN221079138 U CN 221079138U CN 202322589010 U CN202322589010 U CN 202322589010U CN 221079138 U CN221079138 U CN 221079138U
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- China
- Prior art keywords
- shaped supporting
- supporting rod
- fixedly connected
- light guide
- supporting block
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 13
- 239000012788 optical film Substances 0.000 claims description 13
- 210000001503 joint Anatomy 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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- Planar Illumination Modules (AREA)
Abstract
The utility model discloses a backlight module of a liquid crystal display screen, which comprises a mounting plate, an optical diaphragm, a light guide plate and a reflecting plate, wherein the two ends of the optical diaphragm are fixedly connected with a first supporting block, the two ends of the light guide plate and the reflecting plate are fixedly connected with a second supporting block, the bottom ends of the first supporting block and the second supporting block are fixedly connected with positioning blocks, the top end of the second supporting block is provided with a positioning groove in a matched mode, a first L-shaped supporting rod is movably inserted into the surface of the mounting plate, one end of the first L-shaped supporting rod is positioned at the bottom end of the second supporting block on the reflecting plate, a second L-shaped supporting rod is movably inserted into the surface of the mounting plate, one end of the second L-shaped supporting rod is positioned at the bottom end of the second supporting block on the light guide plate, a third L-shaped supporting rod is movably inserted into the surface of the mounting plate, and one end of the third L-shaped supporting rod is positioned at the bottom end of the first supporting block.
Description
Technical Field
The utility model belongs to the technical field of backlight modules, and particularly relates to a liquid crystal display screen backlight module.
Background
The backlight module is one of key components of the liquid crystal display panel, and has the functions of providing enough light sources with uniform brightness and distribution so that the light sources can normally display images.
In the prior art, publication No.: CN218003887U discloses a backlight module for a liquid crystal display screen, the backlight module comprises a rectangular mounting plate, and a reflecting sheet, a light guide plate and an optical film which can be mounted in the rectangular mounting plate, wherein the reflecting sheet, the light guide plate and the optical film are sequentially arranged from bottom to top, lamp strips are arranged on two sides of the top of the light guide plate, a transverse positioning groove is formed in the top of the rectangular mounting plate, a deep positioning bayonet is formed in the central position of the bottom of the inner wall of the transverse positioning groove, and shallow positioning bayonets are formed in the bottom of the inner wall of the transverse positioning groove and on two sides of the deep positioning bayonet.
The backlight module is embedded and installed in the mounting plate, when the backlight module needs to be replaced, the light guide plate, the reflecting sheet and the optical film are detached, the parts are embedded and installed in the mounting plate, the parts are inconvenient to take out from the mounting plate, if the corresponding parts are hard to buckle from the tiny gaps, the time and the labor are wasted, the parts which do not need to be replaced are easy to damage, and therefore the liquid crystal display backlight module needs to be designed to solve the problems.
Disclosure of utility model
The utility model aims to provide a backlight module of a liquid crystal display screen, which solves the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides a liquid crystal display backlight unit, includes mounting panel, optics diaphragm, light guide plate and reflector plate, the first supporting shoe of both ends equal fixedly connected with of optics diaphragm, the equal fixedly connected with second supporting shoe in both ends of light guide plate and reflector plate, the equal fixedly connected with locating piece in bottom of first supporting shoe and second supporting shoe, the constant head tank that supplies the locating piece embedding has been seted up in the top cooperation of second supporting shoe, the surface activity of mounting panel is inserted and is equipped with first L type bracing piece, the one end of first L type bracing piece is located the bottom of second supporting shoe on the reflector plate, the surface activity of mounting panel is inserted and is equipped with second L type bracing piece, the one end of second L type bracing piece is located the bottom of second supporting shoe on the light guide plate, the surface activity of mounting panel is inserted and is equipped with the third L type bracing piece, the one end of third L type bracing piece is located the bottom of first supporting shoe, the perforation that supplies the locating piece to pass is seted up on the surface all cooperation of first L type bracing piece, second L type bracing piece, third L type bracing piece.
Preferably, the surface of the third L-shaped supporting rod is rotatably connected with a rotating head, and the bottom end of the rotating head is connected with a threaded sleeve capable of moving up and down.
Preferably, the bottom fixedly connected with threaded rod of swivel head, threaded sleeve's top cooperation has offered the thread groove that supplies threaded rod threaded connection, threaded sleeve's both sides surface is all fixedly connected with pushing block.
Preferably, the inside cooperation of third L type bracing piece has offered the spacing spout that supplies the pushing block to reciprocate, the guide way that communicates each other with spacing spout is all offered to the both sides surface of third L type bracing piece, every equal sliding connection has trapezoidal slug in the guide way.
Preferably, the surface of mounting panel and first supporting shoe all cooperates and has offered the butt joint caulking groove that supplies trapezoidal caulking piece to imbed, every in the butt joint caulking groove all fixedly connected with reset spring.
Compared with the prior art, the utility model has the beneficial effects that:
1. through being provided with third L type bracing piece, second L type bracing piece and first L type bracing piece, when needs take out optical film piece, light guide plate, reflector plate, accessible third L type bracing piece, second L type bracing piece, first L type bracing piece lift respectively take out from the mounting panel in, are favorable to preventing when taking out optical film piece, light guide plate, reflector plate, and corresponding part is withheld from tiny gap to the strenuous, cause the circumstances emergence of part damage.
2. Through being provided with rotating head, threaded sleeve pipe and bulldozing the piece, rotatory rotating head for bulldoze the piece and push up trapezoidal abaculus in the butt joint caulking groove, fix the third L type bracing piece, be favorable to improving the stability of optics diaphragm, light guide plate, reflector plate installation, and after relieving the location of third L type bracing piece, make things convenient for taking out of third L type bracing piece through the recess on rotating head surface.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic view of a mounting plate of the present utility model in partial cross-section;
FIG. 3 is an enlarged view of the utility model at A in FIG. 2;
FIG. 4 is a schematic view of a first support block of the present utility model in cross-section;
FIG. 5 is a schematic view of a light guide plate according to the present utility model;
FIG. 6 is a schematic view of a reflector plate according to the present utility model;
FIG. 7 is a schematic view of a rotary head according to the present utility model;
FIG. 8 is a schematic view of the structure of a threaded sleeve according to the present utility model;
In the figure: 1. a mounting plate; 2. an optical film; 3. a first support block; 4. a butt joint caulking groove; 5. a return spring; 6. a positioning block; 7. a light guide plate; 8. a reflection sheet; 9. a positioning groove; 10. a second support block; 11. a first L-shaped support bar; 12. a second L-shaped support bar; 13. a third L-shaped support bar; 14. a through hole; 15. a rotating head; 16. a threaded rod; 17. a threaded sleeve; 18. pushing the block; 19. limiting sliding grooves; 20. a guide groove; 21. a trapezoidal slug; 22. a thread groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 8, the present utility model provides a technical solution for a backlight module of a liquid crystal display screen:
The utility model provides a liquid crystal display backlight module, which comprises a mounting plate 1, the optics diaphragm 2, light guide plate 7 and reflector plate 8, the first supporting shoe 3 of both ends all fixedly connected with of optics diaphragm 2, the second supporting shoe 10 of both ends all fixedly connected with of light guide plate 7 and reflector plate 8, the locating piece 6 of both fixedly connected with of bottom of first supporting shoe 3 and second supporting shoe 10, the constant head tank 9 that supplies locating piece 6 to embed is offered in the top cooperation of second supporting shoe 10, through setting up first supporting shoe 3, locating piece 6, the location when the second supporting shoe 10 makes things convenient for optics diaphragm 2, light guide plate 7, reflector plate 8 installation, the surface activity of mounting plate 1 inserts and has had first L type bracing piece 11, the one end of first L type bracing piece 11 is located the bottom of second supporting shoe 10 on the reflector plate 8, reflector plate 8 accessible upwards lifts first L type bracing piece 11, conveniently take out from mounting plate 1, the surface activity of mounting panel 1 is inserted and is equipped with second L type bracing piece 12, the one end of second L type bracing piece 12 is located the bottom of second supporting shoe 10 on light guide plate 7, light guide plate 7 accessible lifts second L type bracing piece 12 upward, conveniently take out from mounting panel 1 in, the surface activity of mounting panel 1 is inserted and is equipped with third L type bracing piece 13, the one end of third L type bracing piece 13 is located the bottom of first supporting shoe 3, optical diaphragm 2 accessible lifts up third L type bracing piece 13, conveniently take out from mounting panel 1, the through-hole 14 that supplies locating piece 6 to pass is all offered in the surface cooperation of first L type bracing piece 11, second L type bracing piece 12, third L type bracing piece 13, during the installation, place first L type bracing piece 11 in proper order in mounting panel 1, reflector plate 8, second L type bracing piece 12, light guide plate 7, third L type bracing piece 13, an optical film 2.
Further, the surface rotation of third L type bracing piece 13 is connected with rotating head 15, but the screw sleeve 17 of reciprocating is connected to the bottom of rotating head 15, the bottom fixedly connected with threaded rod 16 of rotating head 15, the screw groove 22 that supplies threaded rod 16 threaded connection is seted up to the cooperation of screw sleeve 17's top, the equal fixedly connected with bulldozing piece 18 in screw sleeve 17's both sides surface, drive screw sleeve 17 through rotating head 15 and reciprocate, thereby realize the reciprocating of bulldozing piece 18, the spacing spout 19 that supplies bulldozing piece 18 to reciprocate is seted up to the inside cooperation of third L type bracing piece 13, the guide way 20 that communicates each other with spacing spout 19 is all seted up on the both sides surface of third L type bracing piece 13, equal sliding connection has trapezoidal caulking piece 21 in every guide way 20, through the downthehole briquetting 21 of downthehole briquetting of pushing piece 18 suppression, thereby trapezoidal caulking piece 21 moves to the side, thereby realize trapezoidal caulking piece 21 imbeds in butting caulking piece 4, and compress reset spring 5, butting piece 4 that supplies trapezoidal caulking piece 21 is all cooperated on the surface of mounting panel 1 and first supporting piece 3, automatic butting piece 4 has been set up and supplies trapezoidal caulking piece 21 imbeds, the effect of automatic caulking piece 21 is realized when the reset spring 5 is contacted to trapezoidal piece 21 under the effect of connecting piece, the equal guide way 20, the effect of 20 can be limited when the trapezoidal piece is moved down.
The working principle and the using flow of the utility model are as follows: when the optical film 2, the light guide plate 7 and the reflecting sheet 8 need to be replaced, the rotating head 15 is rotated firstly, the rotating head 15 rotates to drive the threaded rod 16 to rotate, the threaded rod 16 rotates to enable the threaded sleeve 17 to move upwards, the threaded sleeve 17 drives the pushing block 18 to move upwards along the track of the limiting chute 19, the limitation of the trapezoidal embedded block 21 is removed, the trapezoidal embedded block 21 moves into the guide groove 20 from the butt joint embedded groove 4 under the elasticity of the reset spring 5, the positioning of the third L-shaped supporting rod 13 is removed, the third L-shaped supporting rod 13 can be pulled out upwards at the moment, the third L-shaped supporting rod 13 moves upwards to support the first supporting rod 3 upwards, the first supporting rod 3 moves upwards to drive the positioning block 6 to move out of the positioning groove 9 on the light guide plate 7 and pass through the through hole 14 on the second L-shaped supporting rod 12, the first supporting rod 3 moves upwards to drive the optical film 2 to move, the optical film 2 can be taken out of the mounting plate 1, the second L-shaped supporting rod 12 can be pulled out upwards according to the requirement, the second L-shaped supporting rod 12 moves upwards to support the second supporting block 10 on the light guide plate 7 to move upwards, the second supporting block 10 moves upwards to drive the positioning block 6 on the second supporting block to move out of the positioning groove 9 on the reflecting plate 8 and pass through the through hole 14 on the first L-shaped supporting rod 11, the second supporting block 10 moves upwards to drive the light guide plate 7 to move, the light guide plate 7 can be taken out of the mounting plate 1, the first L-shaped supporting rod 11 can be pulled out upwards according to the requirement, the first L-shaped supporting rod 11 moves upwards to support the second supporting block 10 on the reflecting plate 8 to move upwards, the second supporting block 10 moves upwards to drive the positioning block 6 on the second supporting block 10 to move upwards to drive the reflecting plate 8 to move, the reflecting sheet 8 can be removed from the mounting plate 1.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely illustrative of the present utility model and not restrictive, and other modifications and equivalents thereof may occur to those skilled in the art without departing from the spirit and scope of the present utility model.
Claims (5)
1. The utility model provides a liquid crystal display backlight unit, includes mounting panel (1), optics diaphragm (2), light guide plate (7) and reflector plate (8), its characterized in that: the optical film comprises an optical film body (2), a light guide plate (7) and a reflecting sheet (8), wherein two ends of the optical film body (2) are fixedly connected with a first supporting block (3), two ends of the light guide plate (7) and the reflecting sheet (8) are fixedly connected with a second supporting block (10), the bottom ends of the first supporting block (3) and the second supporting block (10) are fixedly connected with a positioning block (6), a positioning groove (9) for embedding the positioning block (6) is formed in the top end of the second supporting block (10) in a matched mode, a first L-shaped supporting rod (11) is movably inserted into the surface of the mounting plate (1), one end of the first L-shaped supporting rod (11) is located at the bottom end of the second supporting block (10) on the reflecting sheet (8), a second L-shaped supporting rod (12) is movably inserted into the surface of the mounting plate (7), a third L-shaped supporting rod (13) is arranged at the bottom end of the third L-shaped supporting rod (13), and a first L-shaped supporting rod (13) and a third L-shaped supporting rod (14) penetrate through the first L-shaped supporting rod (12) and penetrate through the first L-shaped supporting rod (12).
2. The backlight module of claim 1, wherein: the surface of the third L-shaped supporting rod (13) is rotatably connected with a rotating head (15), and the bottom end of the rotating head (15) is connected with a threaded sleeve (17) capable of moving up and down.
3. The backlight module of claim 2, wherein: the bottom fixedly connected with threaded rod (16) of swivel (15), thread groove (22) that supplies threaded rod (16) threaded connection are offered in the top cooperation of screw sleeve (17), the both sides surface of screw sleeve (17) all fixedly connected with bulldozes piece (18).
4. A liquid crystal display backlight module according to claim 3, wherein: limiting sliding grooves (19) for pushing and pressing blocks (18) to move up and down are formed in the third L-shaped supporting rods (13) in a matched mode, guide grooves (20) which are communicated with the limiting sliding grooves (19) are formed in the surfaces of two sides of the third L-shaped supporting rods (13), and trapezoidal embedded blocks (21) are connected in the guide grooves (20) in a sliding mode.
5. The backlight module of claim 4, wherein: the surface of mounting panel (1) and first supporting shoe (3) all cooperates and has offered butt joint caulking groove (4) that supplies trapezoidal caulking piece (21) to imbed, every in the butt joint caulking groove (4) all fixedly connected with reset spring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322589010.0U CN221079138U (en) | 2023-09-23 | 2023-09-23 | Backlight module of liquid crystal display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322589010.0U CN221079138U (en) | 2023-09-23 | 2023-09-23 | Backlight module of liquid crystal display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221079138U true CN221079138U (en) | 2024-06-04 |
Family
ID=91254307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322589010.0U Active CN221079138U (en) | 2023-09-23 | 2023-09-23 | Backlight module of liquid crystal display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221079138U (en) |
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2023
- 2023-09-23 CN CN202322589010.0U patent/CN221079138U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |