CN221039723U - Backlight assembly and liquid crystal display screen - Google Patents
Backlight assembly and liquid crystal display screen Download PDFInfo
- Publication number
- CN221039723U CN221039723U CN202420186509.9U CN202420186509U CN221039723U CN 221039723 U CN221039723 U CN 221039723U CN 202420186509 U CN202420186509 U CN 202420186509U CN 221039723 U CN221039723 U CN 221039723U
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- light source
- plate
- shell
- backlight assembly
- light guide
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 20
- 230000017525 heat dissipation Effects 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 230000005855 radiation Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 abstract description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model discloses a backlight assembly and a liquid crystal display screen, which belong to the technical field of liquid crystal display screens, and comprise a shell, wherein a light source assembly with a heat dissipation structure is fixedly arranged in an inner cavity of the shell, a heat dissipation plate is arranged on the back surface of the light source assembly, the surface of the heat dissipation plate is a curved cambered surface, and a positioning assembly is arranged between the heat dissipation plate and the shell; according to the LED light source strip lamp, the radiating plate and the radiating groove are matched, the LED light source strip is fixed on one side of the light source plate through the clamping assembly and corresponds to the radiating groove, when the LED light source strip lamp works, the radiating groove and the radiating plate can timely transfer heat generated by the LED light source strip to the outside so as to improve the radiating effect of the backlight assembly, and the light guide plate is detachably arranged and is fixedly arranged in the inner cavity of the shell through the detachable mounting assembly.
Description
Technical Field
The utility model relates to the technical field of liquid crystal display screens, in particular to a backlight assembly and a liquid crystal display screen.
Background
Liquid crystal display screens are commonly used in products such as computer display or television, and traditional display modes such as CRT (cathode ray tube) display and LED (light-emitting diode) display panels are limited by factors such as overlarge volume or huge power consumption, so that the practical requirements of users cannot be met. The development of the liquid crystal display technology is exactly suitable for the trend of the current information products, and the user can enjoy the best visual environment no matter the advantages of right angle display, low power consumption, small volume, zero radiation and the like, so that the liquid crystal display screen is the primary choice of people at present, and the liquid crystal display screen does not have the light-emitting characteristic and needs a backlight module to provide a light source for the liquid crystal display screen.
The application discloses a backlight assembly of a liquid crystal display screen, which is disclosed in China patent with publication number CN218938729U and comprises a shell and a backlight assembly arranged in the shell, wherein the backlight assembly comprises an LED plate, a light guide plate, a lower diffusion sheet, a lower light collecting sheet, an upper light collecting sheet and an upper diffusion sheet, a triangular chute and a square groove are formed on the opposite sides of the light guide plate and the LED plate, and a lampshade for mixing light of a light source is arranged in the square groove.
The backlight assembly of the liquid crystal display related to the above patent radiates heat only through several groups of through holes on the surface of the housing, and the heat radiation effect is poor, and the light guide plate therein is fixedly installed inside the housing, so that when the backlight assembly fails, it is inconvenient to disassemble the backlight assembly for maintenance, and therefore we need to propose a backlight assembly and a liquid crystal display.
Disclosure of utility model
The present utility model is directed to a backlight assembly and a liquid crystal display, which have the advantages of improving the heat dissipation effect of the backlight assembly and facilitating the maintenance of the backlight assembly, so as to solve the problems set forth in the background art.
In order to achieve the above object, the utility model provides a backlight assembly, which comprises a housing, wherein a light source assembly with a heat dissipation structure is fixedly arranged in an inner cavity of the housing, a heat dissipation plate is arranged on the back surface of the light source assembly, the surface of the heat dissipation plate is a curved arc surface, a positioning assembly is arranged between the heat dissipation plate and the housing, the heat dissipation plate is fixedly arranged in the inner cavity of the housing through the positioning assembly, a light guide plate is arranged in the inner cavity of the housing and positioned on one side, far away from the heat dissipation plate, of the light source assembly, the light guide plate is detachably arranged, a detachable installation assembly is arranged between the light guide plate and the housing, and the light guide plate is fixedly arranged in the inner cavity of the housing through the detachable installation assembly.
Preferably, the light source assembly comprises a light source plate fixedly mounted in the inner cavity of the shell, a plurality of groups of LED light source strips are arranged on one side of the light source plate, a clamping assembly is arranged between the LED light source strips and the light source plate, and the LED light source strips are fixed on the surface of the light source plate through the clamping assembly.
Preferably, the joint subassembly is including seting up in a plurality of groups radiating groove on light source board surface, radiating groove is corresponding setting with the LED light source strip, the inner chamber fixed mounting in radiating groove has a plurality of groups backup pad, one side fixed mounting of backup pad has the buckle, the LED light source strip is fixed in the surface of backup pad through the buckle joint.
Preferably, the positioning assembly comprises a bottom plate fixedly arranged on two sides of the inner cavity of the shell, connecting plates are fixedly arranged at two ends of the heat dissipation plate, and the connecting plates and the bottom plate are fastened together through a locking assembly.
Preferably, the locking assembly comprises a locking hole formed in the surface of the connecting plate, a locking rod is arranged on one side, far away from the connecting plate, of the bottom plate, and one end of the locking rod penetrates through the bottom plate and extends to the outside of the bottom plate to be in threaded connection with the inner wall of the locking hole.
Preferably, a counter bore is formed in the surface of the bottom plate and located at a position corresponding to the locking rod, and one end of the locking rod is hidden in an inner cavity of the counter bore.
Preferably, the detachable installation component is including seting up in the channel of shell inner chamber, the surface and the inner wall joint of channel of light guide plate, the insertion groove with the light guide plate looks adaptation has been seted up at the top of shell, the surface and the inner wall sliding connection of insertion groove of light guide plate, the light guide plate passes through the inner chamber that chucking subassembly joint was fixed in the channel.
Preferably, the clamping assembly comprises a clamping groove formed in the shell, the upper side and the lower side of the clamping groove are respectively communicated with the bottom of the insertion groove and the top of the groove channel, and a clamping plate is inserted into the inner cavity of the clamping groove in a sliding manner.
Preferably, the mounting plates are fixedly mounted on two sides of the shell, and mounting holes are formed in the surfaces of the mounting plates.
A liquid crystal display includes the above backlight assembly.
Compared with the prior art, the utility model has the beneficial effects that:
According to the LED light source strip lamp, the radiating plate and the radiating groove are matched, the LED light source strip is fixed on one side of the light source plate through the clamping assembly and corresponds to the radiating groove, when the LED light source strip lamp works, the radiating groove and the radiating plate can timely transfer heat generated by the LED light source strip to the outside so as to improve the radiating effect of the backlight assembly, and the light guide plate is detachably arranged and is fixedly arranged in the inner cavity of the shell through the detachable mounting assembly.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a heat dissipating plate according to the present utility model;
FIG. 3 is a schematic view of a removable mounting assembly of the present utility model;
FIG. 4 is a schematic view of a light source assembly according to the present utility model;
Fig. 5 is a schematic structural view of the positioning assembly of the present utility model.
In the figure: 1. a housing; 2. a heat dissipation plate; 3. a light guide plate; 4. a light source board; 5. an LED light source strip; 6. a heat sink; 7. a support plate; 8. a buckle; 9. a bottom plate; 10. a connecting plate; 11. a locking hole; 12. a locking lever; 13. a countersunk hole; 14. a channel; 15. an insertion groove; 16. a clamping groove; 17. a clamping plate; 18. a mounting plate; 19. and (5) mounting holes.
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. 1-5, the utility model provides a backlight assembly, which comprises a housing 1, wherein mounting plates 18 are fixedly mounted on two sides of the housing 1, mounting holes 19 are formed in the surfaces of the mounting plates 18, a light source assembly with a heat dissipation structure is fixedly mounted in an inner cavity of the housing 1, the light source assembly comprises a light source plate 4 fixedly mounted in the inner cavity of the housing 1, a plurality of groups of LED light source strips 5 are arranged on one side of the light source plate 4, a heat dissipation plate 2 is arranged on the back surface of the light source assembly, and the surfaces of the heat dissipation plate 2 are curved cambered surfaces.
In this embodiment, through the cooperation of the mounting plate 18 and the mounting hole 19, the backlight assembly can be mounted on the liquid crystal display screen through the screws, and the heat dissipation of the LED light source strip 5 is realized through the cooperation of the heat dissipation plate 2 and the heat dissipation groove 6, and in this embodiment, the surface of the heat dissipation plate 2 is a curved cambered surface, and the heat dissipation area can be larger.
Preferably, a clamping assembly is arranged between the LED light source strip 5 and the light source plate 4, the LED light source strip 5 is fixed on the surface of the light source plate 4 through the clamping assembly, the clamping assembly comprises a plurality of groups of heat dissipation grooves 6 formed in the surface of the light source plate 4, the heat dissipation grooves 6 and the LED light source strip 5 are correspondingly arranged, a plurality of groups of support plates 7 are fixedly arranged in the inner cavities of the heat dissipation grooves 6, a buckle 8 is fixedly arranged on one side of the support plates 7, and the LED light source strip 5 is fixed on the surface of the support plates 7 through the buckle 8 in a clamping manner.
Through the setting of joint subassembly, can install LED light source strip 5 on light source board 4, the user is direct to be blocked LED light source strip 5 on buckle 8 and to install fixedly its position of use when the installation.
Wherein, be provided with locating component between heating panel 2 and shell 1, heating panel 2 is fixed in the inner chamber of shell 1 through locating component installation, locating component includes fixed mounting in the bottom plate 9 of shell 1 inner chamber both sides, the equal fixed mounting in both ends of heating panel 2 has connecting plate 10, through locking component lock fastening together between connecting plate 10 and the bottom plate 9, locking component is including seting up in the locking hole 11 on connecting plate 10 surface, one side that connecting plate 10 was kept away from to bottom plate 9 is provided with locking lever 12, the one end of locking lever 12 runs through bottom plate 9 and extends to the outside of bottom plate 9 and locking hole 11's inner wall threaded connection.
Through positioning assembly's setting, can install the inner chamber of fixing at shell 1 with heating panel 2, when the installation, the connecting plate 10 laminating at its both ends is at the surface of bottom plate 9 with the movable heating panel 2 of user, then the user can screw up locking lever 12 and fix heating panel 2 locking at the inner chamber of shell 1.
In addition, counter sunk holes 13 are formed in the surface of the bottom plate 9 and in the corresponding positions of the locking rods 12, one ends of the locking rods 12 are hidden in the inner cavities of the counter sunk holes 13, and through the arrangement of the counter sunk holes 13, one ends of the locking rods 12 are hidden in the inner cavities of the counter sunk holes 13 when the locking rods 12 are screwed down, so that the flatness of the surface of the bottom plate 9 can be improved, and the problem that one ends of the locking rods 12 protrude is prevented.
It is worth noting that, the inner chamber of shell 1 and be located the one side that the light source subassembly kept away from heating panel 2 are equipped with light guide plate 3, light guide plate 3 is for dismantling the setting, be provided with the removable installation component between light guide plate 3 and the shell 1, light guide plate 3 is fixed in the inner chamber of shell 1 through the removable installation component installation, the removable installation component is including seting up in the channel 14 of shell 1 inner chamber, the inner wall joint of light guide plate 3 surface and channel 14, the insertion groove 15 with light guide plate 3 looks adaptation has been seted up at the top of shell 1, the surface and the inner wall sliding connection of insertion groove 15 of light guide plate 3, light guide plate 3 is fixed in the inner chamber of channel 14 through the chucking subassembly joint, the chucking subassembly is including seting up in the draw-in groove 16 of shell 1 inside, the upper and lower both sides of draw-in groove 16 communicate with the bottom and the top of insertion groove 15 and channel 14 respectively, the inner chamber slip grafting of draw-in groove 16 has cardboard 17.
In this embodiment, the light guide plate 3 is detachably disposed, when the light source assembly needs to be overhauled and maintained, a user can draw the clamping plate 17 out of the clamping groove 16, then draw the light guide plate 3 out of the groove 14 and the insertion groove 15, and at this time, the light source assembly can be exposed to the outside, so that an overhauling personnel can overhauls and maintains the light source assembly conveniently.
Similarly, when the light guide plate 3 is installed, a user can directly insert the light guide plate 3 into the channel 14 in the inner cavity of the housing 1 through the insertion groove 15, position the light guide plate 3 through the channel 14, and then the user can clamp the clamping plate 17 into the inner cavity of the clamping groove 16 to prevent the light guide plate 3 from sliding upwards and slipping from the inner cavity of the housing 1, so as to improve the installation stability of the light guide plate 3.
A liquid crystal display includes the above backlight assembly.
In other embodiments, the liquid crystal display further includes main modules such as an LCD panel, an FPC flexible circuit board, and an IC module.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A backlight assembly comprising a housing (1), characterized in that: the utility model discloses a light source device, including shell (1), light guide plate (3), light source component and shell (1), the inner chamber fixed mounting of shell (1) has the light source component that has heat radiation structure, the back of light source component is equipped with heating panel (2), the surface of heating panel (2) is crooked cambered surface setting, be provided with locating component between heating panel (2) and shell (1), heating panel (2) are fixed in through locating component installation the inner chamber of shell (1), the inner chamber of shell (1) just is located one side that heating panel (2) was kept away from to the light source component and is equipped with light guide plate (3), light guide plate (3) are for dismantling the setting, be provided with between light guide plate (3) and shell (1) and dismantle the installation component, light guide plate (3) are fixed in through dismantling the installation component the inner chamber of shell (1).
2. A backlight assembly according to claim 1, wherein: the LED light source plate comprises a light source plate (4) fixedly mounted in an inner cavity of a shell (1), a plurality of groups of LED light source strips (5) are arranged on one side of the light source plate (4), a clamping assembly is arranged between the LED light source strips (5) and the light source plate (4), and the LED light source strips (5) are fixed on the surface of the light source plate (4) through the clamping assembly.
3. A backlight assembly according to claim 2, wherein: the clamping assembly comprises a plurality of groups of radiating grooves (6) formed in the surface of the light source plate (4), the radiating grooves (6) are correspondingly arranged with the LED light source strips (5), a plurality of groups of supporting plates (7) are fixedly arranged in the inner cavity of the radiating grooves (6), buckles (8) are fixedly arranged on one side of each supporting plate (7), and the LED light source strips (5) are fixedly arranged on the surface of each supporting plate (7) through the corresponding buckles (8).
4. A backlight assembly according to claim 1, wherein: the positioning assembly comprises a bottom plate (9) fixedly arranged on two sides of an inner cavity of the shell (1), connecting plates (10) are fixedly arranged at two ends of the heat dissipation plate (2), and the connecting plates (10) and the bottom plate (9) are fastened together through a locking assembly.
5. A backlight assembly according to claim 4, wherein: the locking assembly comprises a locking hole (11) formed in the surface of the connecting plate (10), a locking rod (12) is arranged on one side, far away from the connecting plate (10), of the bottom plate (9), and one end of the locking rod (12) penetrates through the bottom plate (9) and extends to the outer portion of the bottom plate (9) to be in threaded connection with the inner wall of the locking hole (11).
6. A backlight assembly according to claim 5, wherein: the surface of the bottom plate (9) and the corresponding position of the locking rod (12) are provided with countersunk holes (13), and one end of the locking rod (12) is hidden in the inner cavity of the countersunk holes (13).
7. A backlight assembly according to claim 1, wherein: the detachable mounting assembly comprises a channel (14) formed in the inner cavity of the shell (1), the surface of the light guide plate (3) is clamped with the inner wall of the channel (14), an insertion groove (15) matched with the light guide plate (3) is formed in the top of the shell (1), the surface of the light guide plate (3) is slidably connected with the inner wall of the insertion groove (15), and the light guide plate (3) is clamped and fixed in the inner cavity of the channel (14) through the clamping assembly.
8. A backlight assembly according to claim 7, wherein: the clamping assembly comprises a clamping groove (16) formed in the shell (1), the upper side and the lower side of the clamping groove (16) are respectively communicated with the bottom of the insertion groove (15) and the top of the groove channel (14), and a clamping plate (17) is inserted into the inner cavity of the clamping groove (16) in a sliding mode.
9. A backlight assembly according to claim 1, wherein: the two sides of the shell (1) are fixedly provided with mounting plates (18), and mounting holes (19) are formed in the surfaces of the mounting plates (18).
10. A liquid crystal display, characterized in that: a backlight assembly comprising any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420186509.9U CN221039723U (en) | 2024-01-25 | 2024-01-25 | Backlight assembly and liquid crystal display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420186509.9U CN221039723U (en) | 2024-01-25 | 2024-01-25 | Backlight assembly and liquid crystal display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221039723U true CN221039723U (en) | 2024-05-28 |
Family
ID=91166280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420186509.9U Active CN221039723U (en) | 2024-01-25 | 2024-01-25 | Backlight assembly and liquid crystal display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221039723U (en) |
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2024
- 2024-01-25 CN CN202420186509.9U patent/CN221039723U/en active Active
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| GR01 | Patent grant | ||
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