CN106773325A - Local dimming formula ultrathin backlight module and display device - Google Patents
Local dimming formula ultrathin backlight module and display device Download PDFInfo
- Publication number
- CN106773325A CN106773325A CN201710148955.5A CN201710148955A CN106773325A CN 106773325 A CN106773325 A CN 106773325A CN 201710148955 A CN201710148955 A CN 201710148955A CN 106773325 A CN106773325 A CN 106773325A
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- China
- Prior art keywords
- plate
- rear panel
- loading plate
- local dimming
- light guiding
- 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.)
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
Abstract
The invention discloses a kind of local dimming formula ultrathin backlight module, including the multiple rear panel modules, lamp bar, light guiding film and the diffuser plate that are connected, each described rear panel module includes the loading plate being obliquely installed relative to the diffuser plate, the a piece of light guiding film is provided with each described loading plate, and each described loading plate is fixed with a lamp bar in the beveled end away from the diffuser plate, the light direction of the lamp bar is towards the light guiding film.The invention also discloses a kind of display device.Be stitched together for multiple rear panel modules by the present invention, each rear panel module has the loading plate being obliquely installed, the seamless spliced of light guiding film is capable of achieving on each loading plate by the way that the light guiding film of fritter is arranged on, the design requirement of maximization backlight module can be met, realize larger sized thin type design, large-scale light guide plate can not only be overcome to be difficult the difficulty for making, can also more preferably realize local dimming functions, there is more preferable optical appearance.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of local dimming formula ultrathin backlight module and display device.
Background technology
Backlight module is one of key part and component of display device, and it is used for well-off brightness with the light being evenly distributed
Source, enables display device normally to show image.
Backlight module is divided into straight-down negative and side entering type by structure type.Down straight aphototropism mode set is that backlight is equably matched somebody with somebody
The rear in liquid crystal panel is put as light emitting source, backlight is uniformly communicated to whole screen；Side entrance back module be
Side entering type light source is installed around light guide plate, light source is broken forth from side, the exiting surface of the light of generation from the top of light guide plate is penetrated
Go out, be then communicated to picture.
The advantage of down straight aphototropism mode set is that its picture detail is finer and smoother true to nature, with good light extraction visual angle, usury
With rate, more easy structure, less expensive cost, it is widely used in LCD TV, but overall dimensions are thicker, are difficult slim
Change；The advantage of side entrance back module is that can well reduce thickness, is advantageously implemented ultra-thin outward appearance, but to a certain extent
Image quality is have lost, and light local area control (local dimming), the more difficult backlight suitable for arbitrary dimension can not be carried out.
With the maturation of TV market, market not only levels off to screen enlarging, and people are for product image quality and outward appearance
The requirement of design also more and more higher, such as ultra-thin outward appearance, Local dimming etc., therefore, it is how preferably whole on large-size screen monitors
Ultra-thin outward appearance and more preferable Local dimming functions are closed, is always the emphasis of industry research.
The content of the invention
In view of the deficiency that prior art is present, the invention provides a kind of local dimming formula ultrathin backlight module and display dress
Put so that backlight module and display device have ultra-thin outward appearance and more preferable local dimming function, and also ensure good
Display effect.
In order to realize above-mentioned purpose, present invention employs following technical scheme：
A kind of local dimming formula ultrathin backlight module, including multiple rear panel modules, lamp bar, light guiding film and the diffusion being connected
Plate, each described rear panel module includes the loading plate being obliquely installed relative to the diffuser plate, is set on each described loading plate
There is a piece of light guiding film, and each described loading plate is fixed with a lamp bar in the beveled end away from the diffuser plate,
The light direction of the lamp bar is towards the light guiding film.
Used as one of which implementation method, the rear panel module includes the loading plate, is supported in the loading plate and deviates from
The supporting plate of the diffuser plate side；The corresponding lamp bar of each described light guiding film is fitted in the support of the adjacent rear panel module
On plate.
Used as one of which implementation method, each described rear panel module is also included for carrying the loading plate and the branch
The base plate of fagging, the base plate of all of rear panel module is coplanar.
Used as one of which implementation method, all of base plate is wholely set, and formation be arranged in parallel with the diffuser plate
Fixed plate.
Used as one of which implementation method, all of loading plate is inclined towards the same side.
As one of which implementation method, the loading plate of each rear panel module, the supporting plate and the bottom
Plate is relatively fixed.
As wherein another embodiment, in each described rear panel module, the two ends of the supporting plate respectively with it is described
Loading plate and the base plate are hinged, and each described supporting plate middle part is additionally provided with articulated section；The articulated section with it is adjacent described in
The free end of the loading plate of rear panel module is hinged.
Used as one of which implementation method, described local dimming formula ultrathin backlight module also includes support column, the branch
Dagger is fixed on the carrying plate surface and through the light guiding film.
Used as one of which implementation method, the support column free end extends and is connected to the diffuser plate back.
It is an object of the invention to provide a kind of display device, including a kind of described local dimming formula ultrathin backlight mould
Group.
Be stitched together for multiple rear panel modules by the present invention, and each rear panel module has the loading plate being obliquely installed, and passes through
The light guiding film of fritter is arranged on the seamless spliced of light guiding film is capable of achieving on each loading plate, maximization backlight mould can be met
The design requirement of group, realizes larger sized thin type design, large-scale light guide plate can not only be overcome to be difficult the difficulty for making, also
Local dimming functions can be more preferably realized, there is more preferable optical appearance.
Brief description of the drawings
Fig. 1 is the structural representation of the display device of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the rear panel module of the embodiment of the present invention 1.
Fig. 3 is the structural representation of another backlight module of the embodiment of the present invention 1.
Fig. 4 is the structural representation of the rear panel module of the embodiment of the present invention 2.
Fig. 5 is the structural representation of the backlight module of the embodiment of the present invention 2.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and without
It is of the invention in limiting.
Local dimming formula ultrathin backlight module of the invention has the advantage of direct-light-type backlight and side-edge type backlight concurrently, both
Local dimming can easily be realized, it is ensured that good display effect, but also with ultra-thin outward appearance, in addition, also can be suitably used for big
The Modularized splice design of type backlight module.The backlight module includes connected multiple rear panel modules, lamp bar, light guiding film and expansion
Fall apart, diffuser plate is arranged on the top of rear panel module, each rear panel module includes the loading plate being obliquely installed relative to diffuser plate,
A piece of light guiding film is provided with each loading plate, and each loading plate is fixed with a lamp bar in the beveled end away from diffuser plate,
The light direction of lamp bar is towards light guiding film.
Embodiment 1
Refering to Fig. 1, the present embodiment display device includes local dimming formula ultrathin backlight module and the side of being placed on it
The display panel 1 of exiting surface, the local dimming formula ultrathin backlight module includes connected multiple rear panel modules 10, lamp bar 20, leads
Light film 30 and diffuser plate 40, each rear panel module 10 include the loading plate 11 being obliquely installed relative to diffuser plate 40, and each holds
A piece of light guiding film 30 is provided with support plate 11, and each loading plate 11 is fixed with a lamp bar in the beveled end away from diffuser plate 40
20, lamp bar 20 is specifically designed as LED light source by the light direction of lamp bar 20 towards light guiding film 30, and LED light source is just to light guiding film
30 side wall.
Because the light guide structure of backlight module is designed to be spliced by polylith light guiding film, it is to avoid large scale display dress
The cumbersome and highly difficult manufacture craft of large-sized light guide structure in putting, also, here also by rear panel module also while module
Change design, it is only necessary to adjust the quantity of rear panel module, lamp bar and light guiding film according to actual needs, realize the mould of backlight module
Blockization is assembled, and no matter more large-sized backlight demand can meet in theory, reduce the manufacture difficulty of product, and improve
The compatibility of product.
As shown in Fig. 2 the structural representation of the rear panel module for the present embodiment.As one of which implementation method, backboard
Module 10 has loading plate 11, is supported in loading plate 11 away from the supporting plate 12 of the side of diffuser plate 40 and for carrying loading plate
The 11 and base plate 13a of supporting plate 12, and the corresponding lamp bar 20 of each light guiding film 30 is fitted in the support of adjacent rear panel module 10
On plate 12.Lamp bar 20 is fixed on the surface of supporting plate 12, and towards the light guiding film 30 being arranged on loading plate 11, light guiding film 30 can be by
Projected to diffuser plate 40 after the light treatment that lamp bar 20 sends.
In the present embodiment, spliced all of rear panel module 10 is fixed on the same plane, each coplanar settings of base plate 13a,
All of base plate 13a integral productions are formed the fixed plate 13 being be arranged in parallel with diffuser plate 40 by the present embodiment.
As shown in Fig. 2 the loading plate 11 of each rear panel module 10, supporting plate 12 and base plate 13a are relatively fixed, loading plate 11
It is separately fixed on base plate 13a with supporting plate 12, three surrounds the triangular support structure of closing, loading plate 11 has fixed
Angle of inclination, all of loading plate 11 is inclined towards the same side, and the angle of inclination is optimal in 5 °~45 ° scopes, it is ensured that
The light extraction of the light guiding film 30 being fitted on loading plate 11 covers the surface of diffuser plate 40 substantially.
In addition, being additionally provided with one layer of reflecting layer 60 between loading plate 11 and light guiding film 30, the reflecting layer 60 can be produced on
The surface of loading plate 11, or, it is integrally formed with light guiding film 30, it is also possible to which that it is one layer to independently form, for by the bottom of light guiding film 30
Light be reflected back light guiding film 30, lift light utilization.
When backlight module works, lamp bar 20 is lighted, and light is carried out after entering from the side wall of light guiding film 30 in light guiding film 30
Light is transmitted, and is projected from the exiting surface at top after the multiple reflections of reflected layer 60, then as aobvious after the dodging of diffuser plate 40
Show the backlight of panel 1, ultimately form display picture.
As shown in figure 3, be the another embodiment of the present embodiment, on the basis of above-mentioned backlight module, the backlight mould
Block also has support column 50, and support column 50 is fixed on each surface of loading plate 11, and through light guiding film 30, specifically, support column
50 one end engage with the loading plate 11 of rear panel module 10, and middle part passes through light guiding film 30, spacing to carry out to light guiding film 30, prevent from leading
There is dislocation or offset in light film 30.It is preferred that the support column 50 is transparent, it is made for example with transparent macromolecule resin material, with
Avoid influenceing light propagation path.Further, it is preferable to support column 50 be taper or wedge structure, the support column 50 it is sharp
Free end extends and is connected to the back of diffuser plate 40, and numerous support columns 50 are supported simultaneously to diffuser plate 40, and single support
Post 50 and the contact area very little of diffuser plate 40, can avoid contact with the obvious part hot spot of face appearance and influence display effect.
It should be noted that projection of the two pieces of adjacent light guiding films 30 on base plate 13a is least partially overlapped so that guide-lighting
Film 30 is realized seamless spliced, and lamp bar 20 blocked by the light guiding film 30 on adjacent rear panel module 10.Specifically, lamp bar 20 is by phase
The loading plate 11 of adjacent rear panel module 10 is blocked.In rear panel module 10, supporting plate 12 is not to be connected to the end of loading plate 11, and
It is the position for being connected close to the end of loading plate 11 so that loading plate 11 is separated into the main body near base plate 13a by supporting plate 12
Portion and the extension 110 away from base plate 13a, the extension 110 of loading plate 11 are blocked in the top of the lamp bar 20 closed on, and can be kept away
Exempt from the light that lamp bar sends and directly project to diffuser plate 40 to produce local bright fringes.
Embodiment 2
As shown in figure 4, it is different from embodiment 1, in each rear panel module 10 of the present embodiment, the two ends difference of supporting plate 12
It is hinged with loading plate 11 and base plate 13a, and each middle part of supporting plate 12 is additionally provided with articulated section 12a, with reference to shown in Fig. 5, backboard mould
The articulated section 12a of block 10 is hinged with the free end of the loading plate 11 of adjacent rear panel module 10.So that rear panel module 10
Base plate 13a, supporting plate 12, loading plate 11 constitute linkage with the supporting plate 12 of adjacent rear panel module 10, are carrying out part
During light modulation, the angle of inclination of loading plate 11 can be changed by push-and-pull supporting plate 12, so as to change the light extraction side of light guiding film 30
To the independent type of drive of the single lamp bar 20 of cooperation is dimmed to ultrathin backlight module, the angle of inclination of these loading plates 11
Preferably consistent, the dimming effect of this kind of implementation method is more preferably.
In sum, be stitched together for multiple rear panel modules by the present invention, and each rear panel module has what is be obliquely installed to hold
Support plate, the seamless spliced of light guiding film is capable of achieving by the way that the light guiding film of fritter is arranged on each loading plate, can meet big
The design requirement of type backlight module, realizes larger sized thin type design, and large-scale light guide plate can not only be overcome to be difficult system
The difficulty of work, can also more preferably realize local dimming functions, there is more preferable optical appearance.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, on the premise of the application principle is not departed from, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as the protection domain of the application.
Claims (10)
1. a kind of local dimming formula ultrathin backlight module, it is characterised in that including the multiple rear panel modules (10), the lamp bar that are connected
(20), light guiding film (30) and diffuser plate (40), each described rear panel module (10) relative to the diffuser plate (40) including inclining
The loading plate (11) for tiltedly setting, is provided with a piece of light guiding film (30), and held described in each on each described loading plate (11)
Support plate (11) is fixed with a lamp bar (20), the light extraction of the lamp bar (20) in the beveled end away from the diffuser plate (40)
Direction is towards the light guiding film (30).
2. local dimming formula ultrathin backlight module according to claim 1, it is characterised in that rear panel module (10) bag
Include the loading plate (11), be supported in supporting plate (12) of the loading plate (11) away from the diffuser plate (40) side；Each
The corresponding lamp bar (20) of the light guiding film (30) is fitted in the supporting plate (12) of the adjacent rear panel module (10).
3. local dimming formula ultrathin backlight module according to claim 1, it is characterised in that each described rear panel module
(10) base plate (13a) for carrying the loading plate (11) and the supporting plate (12), all of backboard mould are also included
The base plate (13a) of block (10) is coplanar.
4. local dimming formula ultrathin backlight module according to claim 3, it is characterised in that all of base plate
(13a) is wholely set, the fixed plate (13) that formation be arranged in parallel with the diffuser plate (40).
5. local dimming formula ultrathin backlight module according to claim 1, it is characterised in that all of loading plate
(11) inclined towards the same side.
6. local dimming formula ultrathin backlight module according to claim 3, it is characterised in that each described rear panel module
(10) the loading plate (11), the supporting plate (12) and the base plate (13a) are relatively fixed.
7. local dimming formula ultrathin backlight module according to claim 3, it is characterised in that each described rear panel module
(10) in, the two ends of the supporting plate (12) are hinged with the loading plate (11) and the base plate (13a) respectively, and described in each
Supporting plate (12) middle part is additionally provided with articulated section (12a)；The articulated section (12a) is described with the adjacent rear panel module (10)
The free end of loading plate (11) is hinged.
8. according to any described local dimming formula ultrathin backlight modules of claim 1-7, it is characterised in that also including support column
(50), the support column (50) is fixed on the loading plate (11) surface and through the light guiding film (30).
9. local dimming formula ultrathin backlight module according to claim 8, it is characterised in that the support column (50) is freely
End extends and is connected to the diffuser plate (40) back.
10. a kind of display device, it is characterised in that including any described local dimming formula ultrathin backlight moulds of claim 1-9
Group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710148955.5A CN106773325B (en) | 2017-03-14 | 2017-03-14 | Local dimming type ultrathin backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710148955.5A CN106773325B (en) | 2017-03-14 | 2017-03-14 | Local dimming type ultrathin backlight module and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106773325A true CN106773325A (en) | 2017-05-31 |
| CN106773325B CN106773325B (en) | 2020-05-19 |
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ID=58960997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710148955.5A Active CN106773325B (en) | 2017-03-14 | 2017-03-14 | Local dimming type ultrathin backlight module and display device |
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| Country | Link |
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| CN (1) | CN106773325B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471302A (en) * | 2018-12-25 | 2019-03-15 | 中航华东光电有限公司 | A kind of bottom back lighting device with visual angle deflection |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1704817A (en) * | 2004-06-01 | 2005-12-07 | 住友橡胶工业株式会社 | Light emitting device and liquid crystal display device |
| CN102003641A (en) * | 2009-08-26 | 2011-04-06 | Lg伊诺特有限公司 | Backlight unit and display apparatus using thereof |
| CN202216081U (en) * | 2011-07-29 | 2012-05-09 | 北京京东方光电科技有限公司 | Back light source capable of adjusting light locally and liquid crystal display module |
-
2017
- 2017-03-14 CN CN201710148955.5A patent/CN106773325B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1704817A (en) * | 2004-06-01 | 2005-12-07 | 住友橡胶工业株式会社 | Light emitting device and liquid crystal display device |
| CN102003641A (en) * | 2009-08-26 | 2011-04-06 | Lg伊诺特有限公司 | Backlight unit and display apparatus using thereof |
| CN202216081U (en) * | 2011-07-29 | 2012-05-09 | 北京京东方光电科技有限公司 | Back light source capable of adjusting light locally and liquid crystal display module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471302A (en) * | 2018-12-25 | 2019-03-15 | 中航华东光电有限公司 | A kind of bottom back lighting device with visual angle deflection |
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| Publication number | Publication date |
|---|---|
| CN106773325B (en) | 2020-05-19 |
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Address after: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee after: TCL Huaxing Photoelectric Technology Co.,Ltd. Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |