CN206557427U - Backlight module and liquid crystal display device - Google Patents
Backlight module and liquid crystal display device Download PDFInfo
- Publication number
- CN206557427U CN206557427U CN201720269403.5U CN201720269403U CN206557427U CN 206557427 U CN206557427 U CN 206557427U CN 201720269403 U CN201720269403 U CN 201720269403U CN 206557427 U CN206557427 U CN 206557427U
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- CN
- China
- Prior art keywords
- entrance back
- light guide
- backlight module
- guide plate
- diffuser plate
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Abstract
The utility model discloses a kind of backlight module and liquid crystal display device, the backlight module includes side entrance back component and direct type backlight assembly, the side entrance back component includes light guide plate and the first light source from the light guide plate side incident, the direct type backlight assembly includes diffuser plate and positioned at the secondary light source close to the diffuser plate incidence surface, and the light guide plate is located at the side of the diffuser plate.In technical solutions of the utility model, by the way that side entrance back component and direct type backlight assembly are attached in a backlight module, fully combine the advantage of side entrance back module and down straight aphototropism mode set, solve subregion in side entrance back module less, the shortcoming of HDR DeGrains, and side is thicker in down straight aphototropism mode set, volume is larger, and the corner of display screen haves the shortcomings that shadow.Backlight module brightness of the present utility model is high, the thin, good visual effect in side.
Description
Technical field
The utility model is related to technical field of liquid crystal display, more particularly to a kind of backlight module and liquid crystal display device.
Background technology
In recent years, the development of HDR (High-Dynamic Range, high dynamic range images) TV tech, is started again
The application tide of local dimming technology on TV, the pursuit with user to picture quality of television technology, using local dimming skill
The image quality effect that art TV is presented to user also enjoys the concern of TV industry developer.
And the backlight module used in current HDR TVs, straight-down negative can be roughly divided into according to the difference for entering light mode
Backlight module and side entrance back module.For down straight aphototropism mode set, because LED/light source uses the arrangement mode of array type,
The control of multi partition separate luminance can be easily achieved, you can to realize that local backlight regulation and HDR effects show, but be
So that even light mixing, needs reserved certain mixed light space, this just necessarily causes backlight mould between LED light-emitting areas and diffuser plate
Group is thicker, it is impossible to realize ultrathin design.
And for side entrance back module, due to entering light from side using light source, the load for propagating light is used as using light guide plate
Body, it is possible to achieve ultrathin design, but be that side enters optical mode just because of side entrance back module, it is impossible to realize the brightness of two dimension
Control, so the effect of the local backlight regulation of multi partition can not be realized.
In view of above-mentioned defect, it is necessary to provide a kind of new backlight module.
Utility model content
Main purpose of the present utility model is to provide a kind of backlight module and liquid crystal display device, it is intended to solve single side
Enter the defect that formula backlight module or down straight aphototropism mode set are present.
To achieve the above object, the utility model proposes backlight module include side entrance back component and downward back
Optical assembly, the side entrance back component includes light guide plate and the first light source from the light guide plate side incident, described straight
Down backlight component includes diffuser plate and positioned at the secondary light source close to the diffuser plate incidence surface, and the light guide plate is located at
The side of the diffuser plate.
Preferably, the group number of the side entrance back component is two groups, and side entrance back component described in two groups is located at described
The both sides of diffuser plate.
Preferably, the group number of the side entrance back component is three groups, and side entrance back component is located at respectively described in three groups
The side of the diffuser plate.
Preferably, the group number of the side entrance back component is four groups, and side entrance back component is located at respectively described in four groups
The surrounding of the diffuser plate.
Preferably, connected between the side entrance back component and the direct type backlight assembly by connector.
Preferably, the side on the light guide plate close to the diffuser plate is provided with stopper slot, and the diffuser plate is close to institute
The side for stating light guide plate is provided with for holding to the spacing block set in the stopper slot.
Preferably, the light guide plate is provided with double-side membrane with the one side that the diffuser plate is contacted, and the double-side membrane is close to institute
The one side for stating light guide plate is reflectance coating, is absorbing film close to the one side of the diffuser plate.
Preferably, first light source is LED light bar, and being provided at both ends with for the LED light bar is used on two-terminal led lamp
The reflecting plate that the light penetrated is reflexed on light guide plate.
The invention also discloses a kind of liquid crystal display device, including backlight module as described above.
In technical solutions of the utility model, by the way that side entrance back component and direct type backlight assembly are attached into one
In backlight module, the advantage of side entrance back module and down straight aphototropism mode set is fully combined, side entrance back mould is solved
Subregion is less in group, the shortcoming of HDR DeGrains, and side is thicker in down straight aphototropism mode set, and volume is larger, and aobvious
The corner of display screen haves the shortcomings that shadow.So that the characteristics of display screen realizes high brightness, thin side, good visual effect.This reality
With new backlight module brightness is high, the thin, good visual effect in side.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the external structure schematic diagram of the backlight module of the utility model embodiment；
Fig. 2 is the explosive view of the backlight module of the utility model embodiment.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 100 | Backboard | 20 | Light guide plate |
| 10 | Diffuser plate | 21 | First light source |
| 11 | Secondary light source |
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of the utility model protection.
It is to be appreciated that institute is directional in the utility model embodiment indicates (such as up, down, left, right, before and after ...)
Relative position relation, motion conditions for being only used for explaining under a certain particular pose (as shown in drawings) between each part etc., such as
When really the particular pose changes, then directionality indicates also correspondingly therewith to change.
In addition, and can not be managed in the utility model such as relating to the description of " first ", " second " etc. is only used for describing purpose
Solve to indicate or imply its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " the
One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".It is " many in description of the present utility model
It is individual " it is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " connection ", " fixation " etc. should do broad sense reason
Solution, for example, " fixation " can be fixedly connected or be detachably connected, or integrally；Can mechanically connect, also may be used
Be electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, can be the connection of two element internals
Or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, may be used
To understand concrete meaning of the above-mentioned term in the utility model as the case may be.
In addition, the technical scheme between each embodiment of the utility model can be combined with each other, but must be with ability
Domain those of ordinary skill can be implemented as basis, will be understood that when the combination appearance of technical scheme is conflicting or can not realize
The combination of this technical scheme is not present, also not within the protection domain of the utility model requirement.
The utility model proposes a kind of backlight module, it is intended to solves single side entrance back module or downward back optical mode
The defect that group is present.
Referring to Fig.1 and 2, in a kind of embodiment of the present utility model, including side entrance back component (not indicating) with
And direct type backlight assembly (not indicating), the side entrance back component include light guide plate 20 and from light guide plate side incident the
One light source 21, direct type backlight assembly includes diffuser plate 10 and positioned at the secondary light source 11 close to the incidence surface of diffuser plate 10, leads
Tabula rasa 20 is located at the side of the diffuser plate 10.
In the present embodiment, by the way that side entrance back component and direct type backlight assembly are attached in a backlight module,
So as to make full use of the advantage of side entrance back module and down straight aphototropism mode set.Specifically, the side entering type in the backlight module
Backlight module includes light guide plate 20 and the first light source 21 from the side incident of light guide plate 20, wherein it is desired to explanation,
Light guide plate 20 in the side entrance back module is at least one, can be multiple.Downward back optical mode in the backlight module
Group includes diffuser plate 10 and the leaded light in the secondary light source 11 close to the incidence surface of diffuser plate 10, the side entrance back module
Plate 20 is located at the side of diffuser plate 10.Diffuser plate 10 in straight-down negative not only acts as the equalizing light rays for projecting secondary light source 11
Effect, while the diffuser plate 11 also functions to the effect of support, by supporting backlight framework, protect optical material not to be damaged.Need
It is noted that the side entrance back module in the present embodiment can be multigroup, multigroup side entrance back module is distributed in diffusion
The surrounding of plate.
The present embodiment is realized down straight aphototropism mode set by the way that direct type backlight assembly and side entrance back component are combined
It is attached to the advantage of side entrance back module in a backlight module, in the case where realizing thinned thickness of displays, moreover it is possible to
Realize that multi partition is shown, improve display brightness, solve the hypographous problem in corner of the display mode sub-screen of straight-down negative and show
The problem of display screen thickness is blocked up, while solving the problem of side entrance back module can not realize multi-section display etc..Reference picture
1, the direct type backlight assembly and side entrance back component are installed on backboard 100, wherein secondary light source 11 is in diffuser plate
10 lower section, thus it is invisible in figure.
It is understood that also comprising optical modules such as diffuser plates in side entrance back component, the diffuser plate, which is arranged at, leads
The side of tabula rasa exiting surface, and also comprising optical modules such as light guide plates in direct type backlight assembly, the light guide plate is located at diffuser plate
The side of incidence surface.Specifically, the setting of optical module can be designed according to the need for actual conditions.
As the preferred embodiment in above-described embodiment, the group number of the side entrance back component in the present embodiment is two groups, two
Group side entrance back component is located at the both sides of diffuser plate 10.The both sides of diffuser plate 10 are the relative both sides of diffuser plate 10 and diffusion
The adjacent both sides of plate 10.Two groups of side entrance back components are preferably arranged on the relative both sides of diffuser plate 10 in the present embodiment.
I.e. two groups of side entrance back components can be in the left and right sides of diffuser plate 10, can also be in the both sides up and down of diffuser plate 10, its
In using light guide plate 20 shown in Fig. 1 be located at diffuser plate 10 the left and right sides be used as direction reference.By being used in relative both sides
Side entrance back component, is thinned the thickness on display screen both sides, convenient to carry, while also reducing the volume and again of display screen
Amount.
It is highly preferred that it is also an option that setting three groups of side entrance back components, three groups of side entrance back components, which are arranged on, to be expanded
Three sides fallen apart, or four groups of side entrance back components can also be set, four groups of side entrance back components distributions are in diffusion
The surrounding of plate.When the area that side entrance back component is occupied in module is larger, subregion is just less, works as direct type backlight assembly
When the area occupied in module is smaller, subregion is just named many, can specifically be designed according to actual needs.
In order that side entrance back component and direct type backlight assembly link together, side entrance back component is prevented and straight
Down backlight component occurs the problem of the influence light-out effect such as occurring misplacing during rocking, and carries on the back side entering type in the present embodiment
Optical assembly and direct type backlight assembly are linked together by connector (not shown).Specifically, connector can be by
The junction of the diffuser plate 10 of light guide plate 20 and direct type backlight assembly on side entrance back component sets neck, by light guide plate
With the equal holding of diffuser plate into the neck, or use the fixtures such as buckle that light guide plate 20 and diffuser plate 10 etc. are fixed on into one
Rise etc., do not limit, side entrance back component and direct type backlight assembly can mainly be linked together herein.
Further, stopper slot is provided with (not using the side close to diffuser plate 10 on light guide plate 20 in the present embodiment
Diagram), it is provided with and coordinates with the stopper slot close to the side of light guide plate 20 in stopper slot (not shown), to holding to stopper slot
Spacing block set (not shown).Spacing block set in the present embodiment on the stopper slot and diffuser plate of light guide plate belong to light guide plate and
A part on diffuser plate, it is therefore not necessary to light guide plate and diffuser plate are fixed together by the other fixtures of extra increase, also because
Therefore can't also to influence the transmission of light without the other materials of increase, and it is simple in construction.
Simultaneously in order to solve the problems, such as bright border, the one side contacted in light guide plate 20 with diffuser plate 10 sets double-side membrane (not scheme
Show), the double-side membrane is reflectance coating close to the one side of light guide plate 20, is absorbing film close to the one side of diffuser plate 10.The double-side membrane can
The edge of the one side contacted along diffuser plate 10 with light guide plate 20 is attached on the contact surface.Wherein, use can be with for reflectance coating
The coloured film of reflection light, such as the surface of the face film be white, silver color etc. can reflection light color, absorbing film adopts
Being can be with light-absorbing coloured film, and the surface of such as face film is black.Can using such a double-side membrane
Light guide plate 20 is reflected back so that light guide plate 20 to be accumulated in the light at edge, is highlighted, while the absorbing film of black can absorb
The light at edge is accumulated in diffuser plate 10, it is to avoid diffuser plate 10 produces bright border with the place that light guide plate 20 joins.
Preferably, the first light source 21 is LED light bar, and the LED light bar is provided at both ends with for by edge LED outgoing
The reflecting plate (not shown) reflexed on light guide plate.The present embodiment in the edge at the two ends of LED light bar by setting one to reflect
Plate, is reflexed to the light of the LED outgoing at LED light bar two ends on light guide plate 20 with this, prevents the LED at edges at two ends
The light that lamp is projected directly is mapped to outside light guide plate 20 and radiated less than on light guide plate 20.Enhanced by the setting of the reflecting plate aobvious
The brightness of display screen.
The utility model also provides a kind of liquid crystal display device, and the liquid crystal display device includes backlight mould as described above
Group.Due to the whole technical schemes of volume that this liquid crystal display device employs above-mentioned all embodiments, therefore at least have above-mentioned
All beneficial aspects that the technical scheme of embodiment is brought, this is no longer going to repeat them.
Preferred embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited,
It is every utility model of the present utility model design under, the equivalent structure made using the utility model specification and accompanying drawing content
Conversion, or directly/be used in other related technical fields indirectly and be included in scope of patent protection of the present utility model.
Claims (9)
1. a kind of backlight module, it is characterised in that including side entrance back component and direct type backlight assembly, the side entering type
Backlight assembly includes light guide plate and the first light source from the light guide plate side incident, and the direct type backlight assembly includes expanding
Fall apart and positioned at the secondary light source close to the diffuser plate incidence surface, the light guide plate is located at the side of the diffuser plate.
2. backlight module according to claim 1, it is characterised in that the group number of the side entrance back component is two groups,
Side entrance back component described in two groups is located at the both sides of the diffuser plate.
3. backlight module according to claim 1, it is characterised in that the group number of the side entrance back component is three groups,
Side entrance back component described in three groups is located at the side of the diffuser plate respectively.
4. backlight module according to claim 1, it is characterised in that the group number of the side entrance back component is four groups,
Side entrance back component described in four groups is located at the surrounding of the diffuser plate respectively.
5. backlight module according to claim 1, it is characterised in that the side entrance back component and the downward back
Connected between optical assembly by connector.
6. backlight module according to claim 5, it is characterised in that close to the side of the diffuser plate on the light guide plate
Stopper slot is provided with, the diffuser plate is provided with spacing into the stopper slot for holding close to the side of the light guide plate
Projection.
7. backlight module according to claim 6, it is characterised in that the one side that the light guide plate is contacted with the diffuser plate
Double-side membrane is provided with, the double-side membrane is reflectance coating close to the one side of the light guide plate, is suction close to the one side of the diffuser plate
Winder.
8. the backlight module according to claim any one of 1-7, it is characterised in that first light source is LED light bar, institute
State the reflecting plate being provided at both ends with for the light of two-terminal led lamp outgoing to be reflexed on light guide plate of LED light bar.
9. a kind of liquid crystal display device, it is characterised in that including the backlight module as described in claim any one of 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720269403.5U CN206557427U (en) | 2017-03-17 | 2017-03-17 | Backlight module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720269403.5U CN206557427U (en) | 2017-03-17 | 2017-03-17 | Backlight module and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206557427U true CN206557427U (en) | 2017-10-13 |
Family
ID=60365568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720269403.5U Active CN206557427U (en) | 2017-03-17 | 2017-03-17 | Backlight module and liquid crystal display device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407400A (en) * | 2018-11-23 | 2019-03-01 | 深圳Tcl新技术有限公司 | Down straight aphototropism mode set and display equipment |
| CN109725464A (en) * | 2019-03-15 | 2019-05-07 | 四川长虹电器股份有限公司 | Straight downside enters the liquid crystal module group backlight display device of combination |
| CN110488531A (en) * | 2018-05-15 | 2019-11-22 | 青岛海信电器股份有限公司 | A kind of backlight module and liquid crystal display device |
| CN112180641A (en) * | 2020-10-28 | 2021-01-05 | 东莞市银泰丰光学科技有限公司 | Light guide plate and diffusion plate integrated backlight structure and control method |
| CN112991923A (en) * | 2019-12-12 | 2021-06-18 | 台湾爱司帝科技股份有限公司 | Image display and backlight module thereof |
| WO2022222183A1 (en) * | 2021-04-20 | 2022-10-27 | 武汉华星光电技术有限公司 | Backlight module, vehicle-mounted display panel, and vehicle |
| WO2023070561A1 (en) * | 2021-10-29 | 2023-05-04 | 京东方科技集团股份有限公司 | Display module, display apparatus, and backlight module |
-
2017
- 2017-03-17 CN CN201720269403.5U patent/CN206557427U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488531A (en) * | 2018-05-15 | 2019-11-22 | 青岛海信电器股份有限公司 | A kind of backlight module and liquid crystal display device |
| CN109407400A (en) * | 2018-11-23 | 2019-03-01 | 深圳Tcl新技术有限公司 | Down straight aphototropism mode set and display equipment |
| CN109725464A (en) * | 2019-03-15 | 2019-05-07 | 四川长虹电器股份有限公司 | Straight downside enters the liquid crystal module group backlight display device of combination |
| CN109725464B (en) * | 2019-03-15 | 2020-12-29 | 四川长虹电器股份有限公司 | Straight-lower side-in combined liquid crystal module backlight display device |
| CN112991923A (en) * | 2019-12-12 | 2021-06-18 | 台湾爱司帝科技股份有限公司 | Image display and backlight module thereof |
| CN112180641A (en) * | 2020-10-28 | 2021-01-05 | 东莞市银泰丰光学科技有限公司 | Light guide plate and diffusion plate integrated backlight structure and control method |
| WO2022222183A1 (en) * | 2021-04-20 | 2022-10-27 | 武汉华星光电技术有限公司 | Backlight module, vehicle-mounted display panel, and vehicle |
| WO2023070561A1 (en) * | 2021-10-29 | 2023-05-04 | 京东方科技集团股份有限公司 | Display module, display apparatus, and backlight module |
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