CN214896125U - Backlight module and display screen structure thereof - Google Patents
Backlight module and display screen structure thereof Download PDFInfo
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- CN214896125U CN214896125U CN202120758849.0U CN202120758849U CN214896125U CN 214896125 U CN214896125 U CN 214896125U CN 202120758849 U CN202120758849 U CN 202120758849U CN 214896125 U CN214896125 U CN 214896125U
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- guide plate
- main body
- light guide
- body frame
- backlight module
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- 230000003287 optical effect Effects 0.000 claims abstract description 14
- 238000009792 diffusion process Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000243 solution Substances 0.000 description 9
- 238000013475 authorization Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 240000005002 Erythronium dens canis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Abstract
The utility model discloses a backlight module, include: the light guide plate comprises a main body frame and end covers, wherein two ends of the main body frame are of open structures, and a light guide plate and an optical assembly are sequentially arranged inside the main body frame; mounting grooves are symmetrically formed in two sides of the bottom of the main body frame, and light source modules are arranged in the mounting grooves; the end cover is detachably connected to the opening position of the main body frame, a fixing component is arranged in the end cover, and when the end cover is fixed to the main body frame, the fixing component is used for fixing the light guide plate and the light source module in an integrated mode. The utility model discloses when well end cover is fixed on main body frame, can be fixed light guide plate and light source module integral type through fixed subassembly, when preventing that backlight unit from appearing vibrations, lead to light guide plate and light source module to appear counterpointing the deviation, improve the display effect, when overhauing the dismouting, can carry out the automation through fixed subassembly and counterpoint light guide plate and light source module fixed, it is convenient to overhaul.
Description
Technical Field
The utility model relates to a backlight unit technical field especially relates to a backlight unit and display screen structure thereof.
Background
The backlight module and the display screen structure thereof are side-edge type backlight modules, namely, a luminous source is arranged at the side edge, a light guide plate adopts an injection molding non-printing design, and the design of the side-edge incident light source has the characteristics of light weight, thinness, narrow framing and low power consumption.
If the publication number of the authorization publication is CN210776104, the publication date of the authorization publication is 2020.06.16, and the backlight module includes a back plate assembly, a light source assembly, a light guide assembly, an optical assembly and a frame assembly, wherein the light source assembly and the light guide assembly are both fixed on the back plate assembly, the light guide assembly is located above the light source assembly, the optical assembly is fixed on the light guide assembly, the back plate assembly is detachably connected with the frame assembly, and the light source assembly, the light guide assembly and the optical assembly are all located inside the frame assembly.
The prior art weak point including the above-mentioned application lies in, the position of light source module arranges in the side light type backlight unit in the both sides of light guide plate, and it needs to correspond completely with the light guide plate to improve leaded light effect, but during actual equipment, light source module and light guide plate are mostly independent setting, easily appear shaking when using and lead to the deviation between the two, can't realize both complete correspondences after the dismouting simultaneously, influence display effect.
SUMMERY OF THE UTILITY MODEL
The invention aims to provide a backlight module and a display screen structure thereof, wherein fixing components are arranged on two side end covers of a main body frame, when the end covers are fixed on the main body frame, a light guide plate and a light source module are integrally fixed through the fixing components, so that the light guide plate and the light source module are prevented from generating alignment deviation when the backlight module vibrates, and meanwhile, when the backlight module is maintained, the light guide plate and the light source module can be automatically aligned and fixed through the fixing components, so that the maintenance is convenient.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a backlight module includes: the light guide plate comprises a main body frame and end covers, wherein two ends of the main body frame are of open structures, and a light guide plate and an optical assembly are sequentially arranged inside the main body frame;
mounting grooves are symmetrically formed in two sides of the bottom of the main body frame, and light source modules are arranged in the mounting grooves;
the end cover is detachably connected to the opening position of the main body frame, a fixing component is arranged in the end cover, and when the end cover is fixed to the main body frame, the fixing component is used for fixing the light guide plate and the light source module in an integrated mode.
As a further description of the above technical solution:
the fixing assembly comprises a fixing groove integrally formed on the inner side of the end cover, and positioning rods are symmetrically fixed at two ends of the fixing groove on the end cover.
As a further description of the above technical solution:
the light guide plate is provided with a fixing convex part at the butt joint side with the end cover in an integrated forming mode, and a positioning hole is formed in the end head position of the light source module.
As a further description of the above technical solution:
and a plurality of groups of positioning convex teeth are arranged in the fixing groove.
As a further description of the above technical solution:
and the fixed convex part is provided with a plurality of positioning grooves matched with the positioning convex teeth for use.
As a further description of the above technical solution:
the light source module comprises a bar-shaped seat, a reflecting cover is arranged on the bar-shaped seat, and a light source component is arranged in the reflecting cover.
As a further description of the above technical solution:
the optical assembly comprises two side frames which are arranged in parallel, and a lower diffusion sheet, a lower light collecting sheet, an upper light collecting sheet and an upper diffusion sheet are sequentially stacked between the two side frames.
As a further description of the above technical solution:
and the bottom of the light guide plate is also provided with a reflecting sheet.
A display screen structure comprises a backlight module and an LCD display screen, wherein the LCD display screen is fixed on the backlight module, and the backlight module is the backlight module.
The utility model provides a backlight module and display screen structure thereof. The method has the following beneficial effects:
this backlight unit is through setting up fixed subassembly on main body frame both sides end lid, when the end cover is fixed on main body frame, can fix light guide plate and light source module integral type through fixed subassembly, when preventing backlight unit vibrations from appearing, lead to light guide plate and light source module to appear counterpointing the deviation, improve display effect, when overhauing the dismouting, can carry out the automation through fixed subassembly simultaneously and counterpoint fixedly light guide plate and light source module, it is convenient to overhaul.
Because the backlight module has the technical effects, the display screen structure comprising the backlight module also has the corresponding technical effects.
Drawings
Fig. 1 is a schematic view of an overall structure of a backlight module and a display screen structure thereof according to the present invention;
fig. 2 is a schematic structural view of the end cap of the present invention;
FIG. 3 is a schematic structural view of a light guide plate according to the present invention;
fig. 4 is a schematic structural diagram of a middle light source module according to the present invention;
fig. 5 is a schematic structural diagram of the middle optical assembly of the present invention.
Illustration of the drawings:
1. a main body frame; 2. an end cap; 21. fixing grooves; 22. positioning the convex teeth; 23. positioning a rod; 3. a light guide plate; 4. a reflective sheet; 5. a fixed protrusion; 51. positioning a groove; 6. mounting grooves; 7. a light source module; 71. a strip-shaped seat; 72. a reflector; 73. a light source assembly; 74. positioning holes; 8. an optical component; 81. a side frame; 82. a lower diffusion sheet; 83. a light collecting sheet is arranged; 84. an upper light collecting sheet; 85. an upper diffusion sheet; 9. and an LCD display screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1 to 5, a backlight module includes: the light guide plate comprises a main body frame 1 and an end cover 2, wherein two ends of the main body frame 1 are of an open structure, and a light guide plate 3 and an optical assembly 8 are sequentially arranged inside the main body frame 1; mounting grooves 6 are symmetrically formed in two sides of the bottom of the main body frame 1, and light source modules 7 are arranged in the mounting grooves 6; the end cover 2 is detachably connected to the opening of the main body frame 1, and a fixing component is arranged in the end cover 2, and when the end cover 2 is fixed on the main body frame 1, the fixing component is used for integrally fixing the light guide plate 3 and the light source module 7.
Specifically, the backlight module provided by this embodiment is a side-light type backlight module, the light guide plate 3 and the optical assembly 8 are sequentially disposed inside the main body frame 1, the light source modules 7 are disposed inside the main body frame 1 and located at two sides of the light guide plate 3, the two ends of the main body frame 1 are open structures for facilitating the installation of the light guide plate 3, the light source modules 7 and the optical assembly 8, the end cap 2 is detachably connected to the opening position of the main body frame 1, the end cap 2 is provided with a fixing assembly, the fixing assembly comprises two fixing portions for integrally fixing the light guide plate 3 and the light source modules 7, so as to prevent the light guide plate 3 and the light source modules 7 from generating alignment deviation when the backlight module vibrates, thereby improving the display effect, and simultaneously, the light guide plate 3 and the light source modules 7 can be automatically aligned and fixed by the fixing assembly when the backlight module is repaired or disassembled, the overhaul is convenient.
The fixing assembly comprises a fixing groove 21 integrally formed on the inner side of the end cover 2, a plurality of groups of positioning convex teeth 22 are arranged in the fixing groove 21, and positioning rods 23 are symmetrically fixed at two ends of the fixing groove 21 on the end cover 2. The light guide plate 3 has a fixing protrusion 5 integrally formed on the side abutting against the end cap 2, the fixing protrusion 5 is provided with a plurality of positioning grooves 51 for cooperating with the positioning teeth 22, and the end of the light source module 7 is provided with a positioning hole 74.
The fixed subassembly that sets up in the end cover 2 is to light guide plate 3, light source module 7 carries out the integral type fixed specifically does, when end cover 2 is fixed on the opening at main body frame 1 both ends, the fixed convex part 5 of the inboard fixed slot 21 joint of integral type shaping at end cover 2 on the light guide plate 3, the realization is fixed light guide plate 3, and the location dogtooth 22 on the cooperation fixed slot 21 inlays and establishes in the constant head tank 51 on fixed convex part 5, the realization is fixed light guide plate 3 multidirectional, and simultaneously, locating lever 23 inlays and establishes in the locating hole 74 on light source module 7, finally realize light guide plate 3, light source module 7 carries out the integral type fixedly.
The light source module 7 includes a bar-shaped base 71, a reflector 72 is disposed on the bar-shaped base 71, and a light source assembly 73 is disposed in the reflector 72. The opening of the reflector 72 corresponds to the side surface of the light guide plate 3, and guides all the light emitted by the light source assembly 73 into the light guide plate 3, and the bottom of the light guide plate 3 is further provided with a reflector plate 4, and the reflector plate 4 washes and reflects the optical fibers scattered at the bottom of the light guide plate 3 into the light guide plate 3.
The optical assembly 8 includes two side frames 81 arranged in parallel, and a lower diffusion sheet 82, a lower light collecting sheet 83, an upper light collecting sheet 84, and an upper diffusion sheet 85 are sequentially stacked between the two side frames 81. The lower diffusion sheet 82, the lower light collecting sheet 83, the upper light collecting sheet 84 and the upper diffusion sheet 85 are integrally combined through the side frame 81, and the lower diffusion sheet 82, the lower light collecting sheet 83, the upper light collecting sheet 84 and the upper diffusion sheet 85 can be integrally installed when being installed, so that the installation is more convenient.
A display screen structure comprises a backlight module and an LCD display screen 9, wherein the LCD display screen 9 is fixed on the backlight module, and the backlight module is the backlight module.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (9)
1. A backlight module, comprising: the light guide plate comprises a main body frame (1) and an end cover (2), wherein two ends of the main body frame (1) are of open structures, and a light guide plate (3) and an optical assembly (8) are sequentially arranged inside the main body frame (1);
mounting grooves (6) are symmetrically formed in two sides of the bottom of the main body frame (1), and light source modules (7) are arranged in the mounting grooves (6);
the light guide plate is characterized in that the end cover (2) is detachably connected to the opening position of the main body frame (1), a fixing component is arranged in the end cover (2), and when the end cover (2) is fixed to the main body frame (1), the fixing component is used for fixing the light guide plate (3) and the light source module (7) in an integrated mode.
2. The backlight module as claimed in claim 1, wherein the fixing member comprises fixing grooves (21) integrally formed on the inner side of the end cap (2), and positioning rods (23) are symmetrically fixed to two ends of the end cap (2) at the fixing grooves (21).
3. The backlight module as claimed in claim 1, wherein a fixing protrusion (5) is integrally formed on the side of the light guide plate (3) abutting against the end cap (2), and a positioning hole (74) is formed at the end of the light source module (7).
4. A backlight module according to claim 2, characterized in that a plurality of sets of positioning teeth (22) are arranged in the fixing grooves (21).
5. A backlight module according to claim 3, wherein the fixing protrusion (5) is provided with a plurality of positioning grooves (51) for matching with the positioning teeth (22).
6. The backlight module as claimed in claim 1, wherein the light source module (7) comprises a strip-shaped base (71), a reflector (72) is disposed on the strip-shaped base (71), and a light source assembly (73) is disposed in the reflector (72).
7. The backlight module as claimed in claim 1, wherein the optical assembly (8) comprises two side frames (81) disposed in parallel, and a lower diffusion sheet (82), a lower light collecting sheet (83), an upper light collecting sheet (84) and an upper diffusion sheet (85) are sequentially stacked between the two side frames (81).
8. A backlight module according to claim 1, wherein the bottom of the light guide plate (3) is further provided with a reflective sheet (4).
9. A display screen structure, comprising a backlight module and an LCD display screen (9), wherein the LCD display screen (9) is fixed on the backlight module, and the backlight module is the backlight module according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120758849.0U CN214896125U (en) | 2021-04-14 | 2021-04-14 | Backlight module and display screen structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120758849.0U CN214896125U (en) | 2021-04-14 | 2021-04-14 | Backlight module and display screen structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214896125U true CN214896125U (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120758849.0U Active CN214896125U (en) | 2021-04-14 | 2021-04-14 | Backlight module and display screen structure thereof |
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| CN (1) | CN214896125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115598881A (en) * | 2022-11-28 | 2023-01-13 | 惠科股份有限公司（Cn） | Back plate, backlight module and display device |
-
2021
- 2021-04-14 CN CN202120758849.0U patent/CN214896125U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115598881A (en) * | 2022-11-28 | 2023-01-13 | 惠科股份有限公司（Cn） | Back plate, backlight module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A backlight module and its display screen structure Granted publication date: 20211126 Pledgee: Bank of China Limited Nanjing Chengdong Branch Pledgor: Jiangsu lingshida Intelligent Technology Co.,Ltd. Registration number: Y2024980004592 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |