CN206805079U - Backlight module and liquid crystal display device - Google Patents
Backlight module and liquid crystal display device Download PDFInfo
- Publication number
- CN206805079U CN206805079U CN201720730004.4U CN201720730004U CN206805079U CN 206805079 U CN206805079 U CN 206805079U CN 201720730004 U CN201720730004 U CN 201720730004U CN 206805079 U CN206805079 U CN 206805079U
- Authority
- CN
- China
- Prior art keywords
- light
- backlight module
- emitting window
- diffuser plate
- reflector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
The utility model discloses a kind of backlight module and liquid crystal display device, including multiple reflectors, is arranged in array on mounting surface and mutually splices；The rim of a cup of reflector forms a light-emitting window, and the bottom surface of reflector corresponds to light-emitting window and offers mounting hole；Multiple light sources, it is corresponding to be placed in each mounting hole；And diffuser plate, it is arranged at light-emitting window, and formed with reserved interval between diffuser plate and light-emitting window.The utility model backlight module can realize high dynamic contrast, and backlight illumination is uniform.
Description
Technical field
Field of liquid crystal display is the utility model is related to, more particularly to a kind of backlight module and liquid crystal display device.
Background technology
With the development of electronic technology, the application of various flat panel display products is more and more extensive, due to liquid crystal display panel
Without self light emission function, therefore backlight module must be configured at liquid crystal display panel rear to provide area source.It is existing it is straight under
Formula backlight module, generally by light source and reflector plate collocation design, because the lighting angle of light source is larger, it is necessary to the office of multiple light sources
Portion is overlapping to obtain the overall uniformity of exiting surface, when which part light source is closed, light that the light source of adjacent area is sent
Line still has part directive and closes the region corresponding to light source, that is, the complete brightness for being difficult to corresponding region is closed, so as to
So that realizing for high dynamic contrast is ineffective.
Utility model content
Main purpose of the present utility model is to propose a kind of backlight module, it is intended to solves existing backlight module and is difficult to
The technical problem of high dynamic contrast.
To achieve the above object, the utility model proposes backlight module, including：
Multiple reflectors, are arranged in array on mounting surface and mutually splice；The rim of a cup of the reflector forms a light extraction
Mouthful, the bottom surface of the reflector corresponds to the light-emitting window and offers mounting hole；
Multiple light sources, it is corresponding to be placed in each mounting hole；And
Diffuser plate, it is arranged at the light-emitting window, and formed between reserved between the diffuser plate and the light-emitting window
Every.
Preferably, the side wall of each reflector is spliced successively by multiple subsurfaces.
Preferably, the light source is the combination of LED or LED and lens.
Preferably, it is formed in one between multiple reflectors.
Preferably, between the diffuser plate and the light-emitting window at intervals of：0.2mm~1.0mm.
Preferably, the edge that each light-emitting window is corresponded on the diffuser plate is printed on ink site.
Preferably, the ink site is in the size of the diffuser plate plane interior edge any direction：0.1mm-1.0mm.
Preferably, the mounting hole is the through hole for penetrating the reflector bottom surface.
Preferably, the backlight module also includes housing, and the housing has a cavity volume, and the cavity volume is each described to accommodate
Light source and reflecting element.
The utility model also proposes a kind of liquid crystal display device, and the liquid crystal display device is including liquid crystal display main body and as above
Described backlight module.
The utility model backlight module is by setting multiple one-to-one light sources and reflector, each light source to be correspondingly placed in
In mounting hole on one reflector bottom surface, the light that light source is sent projects via side wall reflection towards light-emitting window, and adjacent
The light that two light sources are sent is non-interference, so that after a wherein light source is closed, light-emitting window corresponding to the light source is entirely dark, realizes
High-contrast；And the light after reflecting also makes light-emitting window edge-light be compensated by force, after diffuser plate, finally cause backlight
The illuminance distribution in source.The utility model backlight module can realize high dynamic contrast, and backlight illumination is uniform.
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 required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the 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 decomposition texture schematic diagram of the embodiment of the utility model backlight module one；
Fig. 2 is the cross-sectional view of backlight module；
Fig. 3 is the light path schematic diagram of backlight module in Fig. 2；
Fig. 4 is the cross-sectional view that light source coordinates with reflector in Fig. 1；
Fig. 5 is the light path schematic diagram per individual array element in Fig. 2；
Fig. 6 is the structural representation of diffuser plate in Fig. 1.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 1 | Reflector | 14 | Mounting hole |
| 11 | Bottom surface | 2 | Light source |
| 12 | Side wall | 3 | Diffuser plate |
| 13 | Light-emitting window | 4 | Ink site |
| 5 | Mounting surface |
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only part of the 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, belong to the scope of the utility model protection.
If it is to be appreciated that related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality instruction be only used for explain it is relative between each part under a certain particular pose (as shown in drawings)
Position relationship, motion conditions etc., if the particular pose changes, directionality instruction also correspondingly changes therewith.
If, should " first ", " the in addition, relate to the description of " first ", " second " etc. in the utility model embodiment
Two " etc. description is only used for describing purpose, and it is not intended that instruction or implying its relative importance or implicit indicating meaning
The quantity of the technical characteristic shown.Thus, " first " is defined, the feature of " second " can express or implicitly include at least one
Individual this feature.In addition, the technical scheme between each embodiment can be combined with each other, but must be with ordinary skill
Personnel can be implemented as basis, and this technical side is will be understood that when the combination appearance of technical scheme is conflicting or can not realize
The combination of case is not present, also not within the protection domain of the requires of the utility model.
The utility model proposes a kind of backlight module.
In the utility model embodiment, as shown in Figure 1 to Figure 3, the backlight module includes：
Multiple reflectors 1, it is arranged in array on mounting surface 5 and mutually splices；The rim of a cup of each reflector 1 forms a light extraction
Mouth 13, the corresponding light-emitting window 13 in bottom surface 11 of reflector offer mounting hole 14；
Multiple light sources 2, it is corresponding to be placed in each mounting hole 14；
Diffuser plate 3, it is arranged at light-emitting window 13, and formed with reserved interval between diffuser plate 3 and light-emitting window 13.
In the present embodiment, reflector 1 is a cup or bowl structure with bottom surface 11 and side wall 12, the side of reflector
Can being made up of the smooth curved surface of a monoblock for wall 12 can also be spliced by multiple subsurfaces；Side wall 12 is relative to bottom surface 11
Angle of inclination be adjusted according to the lighting angle of light source in practical application 2, be not specifically limited herein, as long as ensure be irradiated to
Light in side wall 12 can vertically project after the reflection of side wall 12 through light-emitting window 13；Mutually spelled between multiple reflectors 1
Connect to form a module, the wherein number of reflector 1 and distribution can be adjusted according to the size of corresponding liquid crystal display device；
Mounting surface 5 refers to the plane that its bottom surface is formed after the splicing of each reflector, and each reflector can be adjacent to each other and independently solid
Due to that can also be integrally formed on a mounting plane as an entirety, as long as ensuring that the bottom surface of each reflector is in same installation
In plane；In actual applications, in order to easily manufactured, multiple reflectors 1 can be integrated injection molding or be cast into
Type；Light source 2 can be the combination of LED or LED and lens, and lens can be redistributed to LED light source 2, carried on the back
Light type needed for light.The shape of mounting hole 14 and light-emitting window 13 can be it is square may also be circular or other shapes, as long as with light
The shape adaptation in source 2；Mounting hole 14 can be that to be opened in the blind hole of bottom surface 11 towards the side of light-emitting window 13 can also be logical
Hole.
The utility model backlight module is by setting multiple one-to-one light sources 2 and reflector 1, each correspondence of light source 2
It is placed in the mounting hole 14 on the bottom surface 11 of a reflector 1, the light that light source 2 is sent is reflected towards light-emitting window 13 via side wall 12
It is vertical to project, and the light that two adjacent light sources 2 are sent is non-interference, so that after a wherein light source 2 is closed, the light source 2
Corresponding light-emitting window 13 is entirely dark, realizes high-contrast；And the light after reflecting also is compensated the edge light intensity of light-emitting window 13,
By setting diffuser plate 3, it may be such that the Luminance Distribution of backlight 2 is more uniformly distributed；When diffuser plate 3 is bonded going out for reflector 1 completely
During optical port 13, the light path between adjacent array element is without influence, but the junction dull thread of each reflector 1 irradiates, and can produce splicing
Locate blanking bar；Therefore, reserved spacing will be formed between diffuser plate 3 and light-emitting window 13, the generation of blanking bar can be avoided.Preferably,
Between diffuser plate 3 and light-emitting window 13 at intervals of：0.2mm~1mm.The utility model backlight module can realize that high dynamic contrasts
Degree, and backlight illumination is uniform.
Further, Fig. 6 is refer to, the edge that each light-emitting window 13 is corresponded on diffuser plate 3 is printed on ink site 4.Preferably,
The size of any direction in the plane of diffuser plate 3 of ink site 4 is：0.1mm~1.0mm.
In the present embodiment, due to the interval between diffuser plate 3 and the light-emitting window 13 of reflector 1 so that neighboring reflection cup 1
The light at the edge of light-emitting window 13 can produce interference, the junction of reflector 1 is produced bright band, in order to eliminate bright band, in diffuser plate 3
The edge of upper each light-emitting window 13 of correspondence is printed on ink site 4 so that being mapped to the light in the region can vertically project, so as to eliminate
Bright band, obtain the backlight 2 of brightness uniformity.Ink site 4 can be printed onto the corresponding area of diffuser plate 3 by way of silk-screen printing
Domain, the shape of ink site 4 can be circular, triangle or other arbitrary shapes；Preferably, ink site 4 is flat in diffuser plate 3
The size of any direction is in face：0.1mm~1.0mm；Specifically, its silk-screen peak width by diffuser plate 3 to reflector 1
Away from and the stitching portion thickness of light-emitting window 13 of each reflector 1 determine.
Further, the backlight module also includes housing (not indicating), and housing has a cavity volume, and the cavity volume is each to accommodate
Light source 2 and reflector 1.
In the present embodiment, a housing with cavity volume is set, is easy to the storage and installation of multiple light sources 2 and reflector 1,
In actual applications, the mounting hole 14 on reflector 1 is arranged to through hole, and multiple LED light bars are installed on monoblock backboard, will carry on the back
Plate is contained in housing, and each mounting hole 14 is corresponded with light source 2, completes the assembling of reflector 1 and light source 2, operation side
Just, it is easily installed.
The utility model also proposes a kind of liquid crystal display device, and the liquid crystal display device includes liquid crystal display main body and backlight
Module, the concrete structure of the backlight module is with reference to above-described embodiment, because this liquid crystal display device employs above-mentioned all implementations
Whole technical schemes of example, therefore all beneficial effects at least caused by the technical scheme with above-described embodiment, herein not
Repeat one by one again.
Preferred embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model,
Every equivalent structure change under inventive concept of the present utility model, made using the utility model specification and accompanying drawing content
Change, or directly/be used in other related technical areas indirectly and be included in scope of patent protection of the present utility model.
Claims (10)
- A kind of 1. backlight module, it is characterised in that including：Multiple reflectors, are arranged in array on mounting surface and mutually splice；The rim of a cup of the reflector forms a light-emitting window, institute The bottom surface for stating reflector corresponds to the light-emitting window and offers mounting hole；Multiple light sources, it is corresponding to be placed in each mounting hole；AndDiffuser plate, it is arranged at the light-emitting window, and formed with reserved interval between the diffuser plate and the light-emitting window.
- 2. backlight module as claimed in claim 1, it is characterised in that the side wall of each reflector by multiple subsurfaces successively It is spliced.
- 3. backlight module as claimed in claim 1 or 2, it is characterised in that the light source is LED or LED and lens Combination.
- 4. backlight module as claimed in claim 1 or 2, it is characterised in that be formed in one between multiple reflectors.
- 5. backlight module as claimed in claim 1, it is characterised in that the interval between the diffuser plate and the light-emitting window For：0.2mm~1.0mm.
- 6. backlight module as claimed in claim 5, it is characterised in that the edge of each light-emitting window is corresponded on the diffuser plate It is printed on ink site.
- 7. backlight module as claimed in claim 6, it is characterised in that appoint in the diffuser plate plane interior edge ink site Meaning direction size be：0.1mm~1.0mm.
- 8. backlight module as claimed in claim 1, it is characterised in that the mounting hole is logical for the insertion reflector bottom surface Hole.
- 9. backlight module as claimed in claim 1, it is characterised in that also including housing, the housing has a cavity volume, described Cavity volume is accommodating each light source and reflecting element.
- 10. a kind of liquid crystal display device, it is characterised in that including liquid crystal display main body and as described in claim any one of 1-9 Backlight module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720730004.4U CN206805079U (en) | 2017-06-21 | 2017-06-21 | Backlight module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720730004.4U CN206805079U (en) | 2017-06-21 | 2017-06-21 | Backlight module and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206805079U true CN206805079U (en) | 2017-12-26 |
Family
ID=60749394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720730004.4U Active CN206805079U (en) | 2017-06-21 | 2017-06-21 | Backlight module and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206805079U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109839777A (en) * | 2019-03-11 | 2019-06-04 | 北方民族大学 | A kind of down straight aphototropism mode set |
| TWI666478B (en) * | 2018-12-26 | 2019-07-21 | 云光科技股份有限公司 | A direct type backlight device |
| CN110543048A (en) * | 2019-07-19 | 2019-12-06 | 惠州伟志电子有限公司 | Direct type backlight module comprising perforated layer |
| CN110596956A (en) * | 2019-10-09 | 2019-12-20 | 深圳市隆利科技股份有限公司 | Backlight device and display device |
| CN113534537A (en) * | 2021-07-28 | 2021-10-22 | 南京京东方显示技术有限公司 | Backlight module and display device |
| CN114355618A (en) * | 2022-01-05 | 2022-04-15 | Tcl华星光电技术有限公司 | Light source collimation structure, backlight module and display device |
| CN114647114A (en) * | 2022-03-22 | 2022-06-21 | Tcl华星光电技术有限公司 | Backlight module and display device |
| CN114779526A (en) * | 2022-04-14 | 2022-07-22 | 深圳创维－Rgb电子有限公司 | Light-emitting component, backlight module and display device |
| CN114815379A (en) * | 2021-01-27 | 2022-07-29 | 苏州璨鸿光电有限公司 | Light source module and display device |
| CN114815348A (en) * | 2021-01-28 | 2022-07-29 | 北京京东方光电科技有限公司 | Display device and driving method thereof |
| CN114942547A (en) * | 2022-06-01 | 2022-08-26 | 武汉华星光电技术有限公司 | Backlight module and display device |
| US12027128B2 (en) | 2021-01-28 | 2024-07-02 | Beijing Boe Optoelectronics Technology Co., Ltd. | Display module, method of driving same, and display device |
-
2017
- 2017-06-21 CN CN201720730004.4U patent/CN206805079U/en active Active
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI666478B (en) * | 2018-12-26 | 2019-07-21 | 云光科技股份有限公司 | A direct type backlight device |
| CN109839777A (en) * | 2019-03-11 | 2019-06-04 | 北方民族大学 | A kind of down straight aphototropism mode set |
| CN110543048A (en) * | 2019-07-19 | 2019-12-06 | 惠州伟志电子有限公司 | Direct type backlight module comprising perforated layer |
| CN110596956A (en) * | 2019-10-09 | 2019-12-20 | 深圳市隆利科技股份有限公司 | Backlight device and display device |
| CN114815379A (en) * | 2021-01-27 | 2022-07-29 | 苏州璨鸿光电有限公司 | Light source module and display device |
| CN114815348A (en) * | 2021-01-28 | 2022-07-29 | 北京京东方光电科技有限公司 | Display device and driving method thereof |
| US12027128B2 (en) | 2021-01-28 | 2024-07-02 | Beijing Boe Optoelectronics Technology Co., Ltd. | Display module, method of driving same, and display device |
| CN114815348B (en) * | 2021-01-28 | 2023-11-17 | 北京京东方光电科技有限公司 | Display device and driving method thereof |
| US11703712B2 (en) | 2021-01-28 | 2023-07-18 | Beijing Boe Optoelectronics Technology Co., Ltd. | Display module, method of driving same, and display device |
| CN113534537A (en) * | 2021-07-28 | 2021-10-22 | 南京京东方显示技术有限公司 | Backlight module and display device |
| CN114355618A (en) * | 2022-01-05 | 2022-04-15 | Tcl华星光电技术有限公司 | Light source collimation structure, backlight module and display device |
| CN114647114B (en) * | 2022-03-22 | 2023-10-17 | Tcl华星光电技术有限公司 | Backlight module and display device |
| CN114647114A (en) * | 2022-03-22 | 2022-06-21 | Tcl华星光电技术有限公司 | Backlight module and display device |
| CN114779526A (en) * | 2022-04-14 | 2022-07-22 | 深圳创维－Rgb电子有限公司 | Light-emitting component, backlight module and display device |
| CN114942547A (en) * | 2022-06-01 | 2022-08-26 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN114942547B (en) * | 2022-06-01 | 2023-12-08 | 武汉华星光电技术有限公司 | Backlight module and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206805079U (en) | Backlight module and liquid crystal display device | |
| CN207424456U (en) | Backlight module and display device | |
| CN102661535B (en) | Direct type backlight module | |
| CN105204107A (en) | Liquid crystal display device and backlight module thereof | |
| CN106249478B (en) | A kind of backlight module and display device, television set | |
| CN110196514A (en) | A kind of backlight module and its display device | |
| CN209992781U (en) | Backlight module and liquid crystal display device | |
| CN105674154A (en) | Backlight module and three-dimensional optical regulation and control assembly | |
| CN105242454A (en) | Ultrathin direct illumination-type backlight module and liquid crystal display device | |
| CN107991810A (en) | Backlight and liquid crystal display | |
| CN215576034U (en) | Backlight module and liquid crystal display device | |
| CN204785863U (en) | High reflectivity's advertising light boxes | |
| KR102023931B1 (en) | Backlight unit and liquid crystal display device using the same | |
| CN103712127A (en) | Light source assembly, backlight module and display device | |
| CN109212826A (en) | Light source module | |
| KR20110073210A (en) | Backlight unit | |
| KR20150092391A (en) | Light guide panel, backlight unit, display devece and method for manufacturing light guide panel | |
| KR100939191B1 (en) | Optical panel with reflective sheet having distributed minute holes for backlight | |
| CN207993392U (en) | A kind of straight-down negative micro-LED glass diffuser plates | |
| CN206657158U (en) | Assembling structure, backlight and the liquid crystal display die set of a kind of glue frame and metal frame | |
| KR20090119399A (en) | Optical panel containing refelective minute beads for backlight | |
| KR101544311B1 (en) | Led and fiber optic light diffuser | |
| CN205541750U (en) | Novel information display screen | |
| CN211649940U (en) | Non-direct-lighting classroom lamp | |
| CN104676360A (en) | Backlight module and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |