CN207424464U - LED backlight - Google Patents
LED backlight Download PDFInfo
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- CN207424464U CN207424464U CN201721441347.5U CN201721441347U CN207424464U CN 207424464 U CN207424464 U CN 207424464U CN 201721441347 U CN201721441347 U CN 201721441347U CN 207424464 U CN207424464 U CN 207424464U
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Abstract
The utility model discloses a kind of LED backlight, including LED light source, light guide plate, main frame and secondary framework；The left side of light guide plate is incidence surface, and upper surface is light-emitting surface, and optical film layer is provided on light-emitting surface；Main frame, main frame include backboard and three side plates, and backboard and three side plates form a left side and the open quadrangle box structure in upside, are coated with reflector layer on backboard, and light guide plate is installed on backboard；Secondary framework is mounted at the left end of main frame, and LED light source is arranged in secondary framework, and direction of illumination is towards incidence surface.Effect：When LED light source, which is damaged, to need repairing or replace, it only needs individually to disassemble secondary framework, you can carry out maintenance LED light source or replace, without internal other assemblies are disassembled, so that the operational sequence very simple of repair, brings great convenience to repair.
Description
Technical field
The utility model is related to backlight source domain more particularly to a kind of LED backlights.
Background technology
Backlight (BackLight) is a kind of light source positioned at liquid crystal display (LCD) behind, for for liquid crystal display
There is provided a planar light source that is uniform, stablizing and there is certain brightness so that liquid crystal display can show image.It is existing
Backlight is mainly made of frame and the LED light source, light guide plate, optical diaphragm that are arranged at lower portion etc., wherein, LED light
Source is both that impaired component is easier in component and backlight mostly important in backlight, and traditional backlight
In LED backlight, due to being arranged at lower portion, when being replaced or being repaired to it, can not individually by its from
It is disassembled inside backlight, it is therefore provided that the operational sequence of repair is sufficiently complex, great inconvenience is brought to repair.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.For this purpose, this reality
It is to propose a kind of LED backlight with a new purpose.
For the LED backlight according to the utility model embodiment, including：
LED light source；
Light guide plate, the left side of the light guide plate is incidence surface, and upper surface is light-emitting surface, and light is provided on the light-emitting surface
Learn film layer；
Main frame, the main frame include backboard and three side plates, the backboard and three side plates formed a left side and
The open quadrangle box structure in upside is coated with reflector layer on the backboard, and the light guide plate is installed on the backboard；
Secondary framework, the pair framework are mounted at the left end of the main frame, and the LED light source is arranged at described
In secondary framework, and direction of illumination is towards the incidence surface.
According to the LED backlight that the utility model embodiment provides, including LED light source, light guide plate, main frame and secondary frame
Body, light guide plate are installed on main frame, and LED light source is installed in secondary framework, and main frame is detachably connected with secondary framework, such as
This, when LED light source, which is damaged, to need repairing or replace, it is only necessary to individually disassemble secondary framework, you can to LED light source
It carries out maintenance or replaces, without internal other assemblies are disassembled, so so that the operational sequence of repair is very simple
It is single, it brings great convenience to repair.
In addition, following additional technical characteristic can also be had according to the LED backlight of the utility model above-described embodiment：
In one embodiment according to the present utility model, the pair framework is the open quadrangle box structure of right end, including
Bottom plate, top plate, front side board, back side panel and left plate, the bottom plate and top plate are opposite up and down, and the front side board and back side panel are opposite
The rear and front end for being arranged at the top plate and bottom plate, the left plate is arranged at the left end of the top plate and bottom plate, before described
A heat-conducting plate is connected between side plate and back side panel, the left side of the heat-conducting plate is evenly spaced to be provided with multiple heat radiating fins
Piece, right side are fixedly connected with the FPC flexible boards of the LED light source.
In one embodiment according to the present utility model, the left plate of the left end of the radiating fin and the secondary framework it
Between there is the first gap, the front side board of the pair framework offers a heat emission hole, the back side panel of the pair framework and the heat dissipation
The opposite position in hole is provided with a radiator fan.
In one embodiment according to the present utility model, a shading piece is further included, the shading piece is installed on the leaded light
The left end of plate, /V bottom plate including square structure and the space limiting side plate being arranged on described four sides of /V bottom plate, it is described
/V bottom plate is fitted on the incidence surface, and middle part offers a square through hole, wherein, front and rear two opposite two space limiting side plates
Left side is recessed with to the right a bayonet；
There is the second gap between the bottom plate of the heat-conducting plate bottom surface and the secondary framework, and heat-conducting plate right side is not installed
The position plating of FPC flexible boards is equipped with reflecting coating；
When secondary framework is installed on the main frame, the heat-conducting plate is inserted in the shading piece, and right side
Edge placement is supported as on the /V bottom plate.
In one embodiment according to the present utility model, the optical film layer includes the upper diffusion from top to bottom set gradually
Film, bright enhancement film and lower diffusion barrier.
In one embodiment according to the present utility model, the left side of front and rear two opposite side plates of the main frame is equal
A groove is offered, an installing plate is extended to the right in the pair front side board of framework and the right side of back side panel respectively, described in two
Installing plate is removably inserted to respectively in two grooves, so that the pair framework is mounted at the main frame
On.
In one embodiment according to the present utility model, Air Filter is provided in the heat emission hole.
Description of the drawings
Fig. 1 is the utility model embodiment structure diagram；
Fig. 2 is the utility model embodiment light conducting plate structure schematic diagram；
Fig. 3 is the utility model embodiment main frame structure diagram；
Fig. 4 is the utility model embodiment pair framework and LED light source structure diagram；
Fig. 5 is the utility model embodiment shading piece structure diagram.
Reference numeral：
LED light source 10；
FPC flexible boards 11；
Light guide plate 20；
Incidence surface 21；
Light-emitting surface 22；
Main frame 30；
Backboard 31；
Reflector layer 311；
Groove 32；
Secondary framework 40；
Heat-conducting plate 41；
Radiating fin 411；
Heat emission hole 42；
Radiator fan 43；
First gap 44；
Installing plate 45；
Shading piece 50；
/V bottom plate 51；
Square through hole 511；
Space limiting side plate 52；
Bayonet 521.
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is same or like element.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that the utility model
Limitation.
In the description of the utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable
The orientation or position relationship of the instructions such as hour hands ", " counterclockwise " are based on orientation shown in the drawings or position relationship, merely to just
In description the utility model and simplified description rather than instruction or imply that signified device or element must be with specific sides
Position, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the utility model, " multiple " are meant that two or two
More than, unless otherwise specifically defined.
In the utility model, unless otherwise specific regulation and limit, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the utility model.
Referring to figs. 1 to shown in Fig. 5, the utility model embodiment provides a kind of LED backlight, including LED light source 10, leads
Tabula rasa 20, main frame 30 and secondary framework 40.
Specifically, LED light source 10 includes FPC flexible boards 11 and the multiple LED lamp beads being arranged on FPC flexible boards 11,
The light that is sent by LED lamp bead illuminates liquid crystal panel.
The left side of light guide plate 20 is incidence surface 21, and upper surface is light-emitting surface 22, and optical film layer is provided on light-emitting surface 22；
The direction of light that light guide plate 20 is used to send multiple LED lamp beads carries out reflection processing, so that more light are from light-emitting surface
22 shine out, and illuminate liquid crystal panel so as to form area source.
Main frame 30 includes backboard 31 and three side plates, and backboard 31 and three side plates form a left side and upside is open
Quadrangle box structure is coated with reflector layer 311 on backboard 31, and light guide plate 20 is installed on backboard 31, that is to say, that light guide plate
20 are located at the top of reflector layer 311, so so that can pass through the anti-of reflector layer 311 from the light of 20 bottom outlet of light guide plate
The effect of penetrating is reflexed to again inside light guide plate 20, and then is emitted from the light-emitting surface 22 of light guide plate 20, improves the brightness of light.
Secondary framework 40 is mounted at the left end of main frame 30, and LED light source 10 is arranged in secondary framework 40, and irradiates
Direction is towards incidence surface 21.In other words, the main frame 30 of light guide plate 20 is installed and the secondary framework 40 of LED light source 10 is installed
For split structure, when secondary framework 40 is installed on main frame 30, the left end of the right end and main frame 30 of secondary framework 40 is mutual
Split, so that light guide plate 20 in main frame 30 and the LED light source 10 in secondary framework 40 are respectively positioned on main frame 30 and secondary frame
In the space that 40 split of body is formed, in this way, being just formed as backlight main body, when coming into operation, liquid crystal panel is installed on main frame
On body 30.When secondary framework 40 is disassembled from main frame 30, LED light source 10 can make mutually to divide with main frame 30
From in this way, when needing repairing or replacing LED light source 10, can very easily carrying out, and not interfere with main frame 30
Internal other assemblies.
According to the LED backlight that the utility model embodiment provides, including LED light source 10, light guide plate 20, main frame 30 and
Secondary framework 40, light guide plate 20 are installed on main frame 30, and LED light source 10 is installed in secondary framework 40, and main frame 30 and secondary frame
Body 40 is detachably connected, in this way, when LED light source 10 is damaged and needs repairing or replace, it is only necessary to individually by secondary framework 40
It disassembles, you can LED light source 10 is carried out maintenance or replaced, without internal other assemblies are disassembled, in this way,
So that the operational sequence very simple of repair, brings great convenience to repair.
In an example of the utility model, secondary framework 40 is the open quadrangle box structure of right end, including bottom plate, top
Plate (not shown), front side board, back side panel and left plate, bottom plate and top plate are opposite up and down, and front side board and back side panel are opposite
The rear and front end of top plate and bottom plate is arranged at, left plate is arranged at the left end of top plate and bottom plate, connects between front side board and back side panel
A heat-conducting plate 41 is connected to, the left side of heat-conducting plate 41 is evenly spaced to be provided with multiple radiating fins 411, right side and LED light
The FPC flexible boards 11 in source 10 are fixedly connected.
That is, radiating fin 411 on heat-conducting plate 41 and its left side can be to the heat that is generated on LED light source 10
It is distributed, so as to play the role of heat dissipation, is conducive to extend the service life of LED light source 10, due to heat-conducting plate 41 and heat dissipation
Fin 411 is installed in secondary framework 40, therefore, also can timing cleaning dust is carried out to radiating fin 411, avoid using
After a period of time, the dust being adhered on radiating fin 411 influences heat dissipation effect.Also, since secondary framework 40 has for right end
Open quadrangle box structure, therefore, when secondary framework 40 is installed on main frame 30, secondary framework 40 can also be to inside
LED light source 10 is protected.
In another example of the utility model, have between the left plate of the left end of radiating fin 411 and secondary framework 40
There is the first gap 44, the front side board of secondary framework 40 is equipped with a heat emission hole 42, and the back side panel of secondary framework 40 is opposite with heat emission hole 42
Position is provided with a radiator fan 43.
In this way, when radiator fan 43 works, the hot-air in first gap 44 can be blown out out of heat emission hole 42,
So as to reduce the temperature on radiating fin 411, to be reached for the cooling purpose of LED light source 10.
In another example of the utility model, a shading piece 50 is further included, shading piece 50 is installed on light guide plate 20
Left end, /V bottom plate 51 including square structure and the space limiting side plate 52 being arranged on 51 4 sides of /V bottom plate, /V bottom
Plate 51 is fitted on incidence surface 21, and middle part offers a square through hole 511, wherein, front and rear two opposite two space limiting side plates 52
Left side is recessed with to the right a bayonet 521；
There is the second gap between the bottom plate of 41 bottom surface of heat-conducting plate and secondary framework 40, and 41 right side of heat-conducting plate is not installed
The position plating of FPC flexible boards 11 is equipped with reflecting coating；
When secondary framework 40 is installed on main frame 30, heat-conducting plate 41 is inserted in shading piece 50, and the edge of right side
Position is supported as on /V bottom plate 51.
That is, during specific installation, the rear and front end of heat-conducting plate 41 is arranged in two bayonets 521, under shading piece 50
The space limiting side plate 52 at end can extend into the second gap so that heat-conducting plate 41 is inserted in shading piece 50 so that lead
The edge placement of the right side of hot plate 41 is supported as on limiting plate, in this way, the LED light source 10 being installed on heat-conducting plate 41 is located at side
In shape through hole 511, also allow in the space that LED light source 10 is formed between light guide plate 20 and heat-conducting plate 41, and heat-conducting plate
There is no gap between 41 and shading piece 50, therefore, it also can just avoid light in light guide plate 20 after multiple reflections effect, into
Enter interior to secondary framework 40 and cause the loss of light；Further, since 41 right side of heat-conducting plate does not install the position of FPC flexible boards 11
Plating is equipped with reflecting coating, and therefore, the light reflexed on 41 right side of heat-conducting plate can further be reflexed to by reflectance coating and led
The light-emitting surface 22 of tabula rasa 20 so, it is possible further to reduce the loss of light, so as to play the irradiation effect of enhancing LED light source 10
The effect of fruit.
In another example of the utility model, optical film layer includes the upper diffusion barrier from top to bottom set gradually, increasing
Light film and lower diffusion barrier, diffusion barrier, bright enhancement film and lower diffusion barrier can improve light radiation response on this, improve irradiation model
It encloses, so as to promote the quality of LED backlight.
In another example of the utility model, the first front side board of main frame 30 and the left side of the first back side panel are equal
A groove 32 is offered, an installing plate 45, two peaces are extended to the right in the front side board of secondary framework 40 and the right side of back side panel respectively
Loading board 45 is removably inserted to respectively in two grooves 32, so that secondary framework 40 is mounted on main frame 30.In this way,
When first secondary framework 40 is installed on main frame 30, the two junction will not be formed with gap, so as to play the role of light leakage,
Meanwhile two installing plates 45 in secondary framework 40 also play an important role of to be oriented to and position so that secondary framework 40 can quickly pacify
Loaded on main frame 30.It should be noted that being additionally provided with the locking member of mutual cooperation in secondary framework 40 and main frame 30, use
It is locked in integrally mounted main frame 30 and secondary framework 40, which may be employed lock screw, locking effect
It is good and convenient for disassembly and assembly.
In another example of the utility model, Air Filter is provided in heat emission hole 42, Air Filter is prevented with certain
The effect of dirt influences dissipating for radiating fin 411 so as to which the dust in air be reduced to be entered from heat emission hole 42 in secondary framework 40
Thermal effect.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It is combined in an appropriate manner in any one or more embodiments or example.
Although the embodiment of the utility model is had been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it is impossible to be interpreted as the limitation to the utility model, those of ordinary skill in the art are not departing from the utility model
Principle and objective in the case of above-described embodiment can be changed in the scope of the utility model, change, replace and
Modification.
Claims (7)
1. a kind of LED backlight, which is characterized in that including：
LED light source；
Light guide plate, the left side of the light guide plate is incidence surface, and upper surface is light-emitting surface, and optical film is provided on the light-emitting surface
Layer；
Main frame, the main frame include backboard and three side plates, and the backboard and three side plates form a left side and upside
Open quadrangle box structure is coated with reflector layer on the backboard, and the light guide plate is installed on the backboard；
Secondary framework, the pair framework are mounted at the left end of the main frame, and the LED light source is arranged at the secondary frame
In vivo, and direction of illumination is towards the incidence surface.
2. LED backlight according to claim 1, which is characterized in that the pair framework is the open quadrangle box of right end
Structure, including bottom plate, top plate, front side board, back side panel and left plate, the bottom plate and top plate are opposite up and down, the front side board and
The opposite rear and front end for being arranged at the top plate and bottom plate of back side panel, the left plate are arranged at a left side for the top plate and bottom plate
End, is connected with a heat-conducting plate between the front side board and back side panel, the left side of the heat-conducting plate is evenly spaced be provided with it is more
A radiating fin, right side are fixedly connected with the FPC flexible boards of the LED light source.
3. LED backlight according to claim 2, which is characterized in that the left end of the radiating fin and the secondary framework
Left plate between there is the first gap, the front side board of the pair framework offers a heat emission hole, the back side panel of the pair framework
The position opposite with the heat emission hole is provided with a radiator fan.
4. LED backlight according to claim 2, which is characterized in that further include a shading piece, the shading piece is installed on
The left end of the light guide plate, /V bottom plate including square structure and the limiting side being arranged on described four sides of /V bottom plate
Plate, the /V bottom plate are fitted on the incidence surface, and middle part offers a square through hole, wherein, front and rear two opposite two limits
The left side of position side plate is recessed with to the right a bayonet；
There is the second gap between the bottom plate of the heat-conducting plate bottom surface and the secondary framework, and heat-conducting plate right side does not install FPC
The position plating of flexible board is equipped with reflecting coating；
When secondary framework is installed on the main frame, the heat-conducting plate is inserted in the shading piece, and the edge of right side
Position is supported as on the /V bottom plate.
5. LED backlight according to claim 1, which is characterized in that the optical film layer includes from top to bottom setting successively
Upper diffusion barrier, bright enhancement film and the lower diffusion barrier put.
6. LED backlight according to claim 1, which is characterized in that front and rear two opposite side plates of the main frame
Left side offer a groove, an installation is extended to the right in the pair front side board of framework and the right side of back side panel respectively
Plate, two installing plates are removably inserted to respectively in two grooves, so that the pair framework is mounted at institute
It states on main frame.
7. LED backlight according to claim 2, which is characterized in that be provided with Air Filter in the heat emission hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721441347.5U CN207424464U (en) | 2017-11-01 | 2017-11-01 | LED backlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721441347.5U CN207424464U (en) | 2017-11-01 | 2017-11-01 | LED backlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207424464U true CN207424464U (en) | 2018-05-29 |
Family
ID=62306659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721441347.5U Active CN207424464U (en) | 2017-11-01 | 2017-11-01 | LED backlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207424464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375416A (en) * | 2018-10-25 | 2019-02-22 | 安徽赛迈特光电股份有限公司 | Backlight module based on quantum dot and the liquid crystal display with it |
-
2017
- 2017-11-01 CN CN201721441347.5U patent/CN207424464U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375416A (en) * | 2018-10-25 | 2019-02-22 | 安徽赛迈特光电股份有限公司 | Backlight module based on quantum dot and the liquid crystal display with it |
| CN109375416B (en) * | 2018-10-25 | 2024-03-01 | 安徽赛迈特光电股份有限公司 | Backlight module based on quantum dots and liquid crystal display screen with same |
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