CN103472524B - A kind of light guide plate and backlight module - Google Patents
A kind of light guide plate and backlight module Download PDFInfo
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- CN103472524B CN103472524B CN201310418990.6A CN201310418990A CN103472524B CN 103472524 B CN103472524 B CN 103472524B CN 201310418990 A CN201310418990 A CN 201310418990A CN 103472524 B CN103472524 B CN 103472524B
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- guide plate
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Abstract
Embodiments provide a kind of light guide plate and backlight module, relate to Display Technique field, slim and maximization can be realized simultaneously.Described light guide plate includes: some sub-light guide plates；Described sub-light guide plate includes incidence surface, reflecting surface and exiting surface；Incidence surface at described sub-light guide plate is provided with a light source groove, and described light source groove is used for placing light source；The side that described incidence surface is relative or neighbor is provided with connecting portion；Wherein, described connecting portion is for making the sub-light guide plate in described light guide plate be connected with each other.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of light guide plate and backlight module.
Background technology
Volume is little, low in energy consumption, radiate the features such as low, current because having for liquid crystal display
Flat panel display market occupies leading position.In a liquid crystal display, liquid crystal itself is not
Luminescence, is used only to modulate the light come from backlight module incidence, makes display show image.Liquid
The backlight module of crystal device is broadly divided into down straight aphototropism mode set and marginal mode backlight module,
And marginal mode backlight module is thin and light due to thickness, it is more suitable for liquid crystal indicator slim(fine
Carefully) change and light-weighted requirement, and obtained paying close attention to widely.
Recently TV display device gradually develops to the direction maximized, accordingly, and display device
The each several part of middle backlight module is required for realizing large scale and produces, the especially master in backlight module
Want parts-light guide plate (Light Guide Plate, LGP).In prior art, make leaded light
The method of plate mainly has two kinds, and one is fashion of extrusion, and one is injection system.Wherein, squeeze
Pressure mode refers to: use PMMA(Poly Methyl Methacrylate, polymethylacrylic acid
Methyl esters) become template by extrusion process after, more onboard printing light guiding points pattern, be fabricated to lead
Tabula rasa；Injection system refers to: installed on the injector by injection molding, to described injection molding
Middle injection light guide panel material, forms light guide plate.
Two kinds of methods of prior art, the large-size light-conducting plate that application fashion of extrusion makes, thickness
Thicker, it is impossible to reach the requirement of slim, and injection system, although wanting of slim can be met
Ask, but owing to capacity and the injection molding preparation of syringe are difficult, it is difficult to realize maximizing.
Summary of the invention
Embodiments of the invention provide a kind of light guide plate and backlight module, can realize slim simultaneously
And maximization.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
A kind of light guide plate, including: some sub-light guide plates；Described sub-light guide plate includes incidence surface,
Reflecting surface and exiting surface；
Incidence surface at described sub-light guide plate is provided with a light source groove, and described light source groove is used
In placing light source；
The side that described incidence surface is relative or neighbor is provided with connecting portion；
Wherein, described connecting portion is for making the sub-light guide plate in described light guide plate be connected with each other.
Optionally, the side that described incidence surface is relative is provided with the first connector；
Then, in described light guide plate, the first connecting portion of a sub-light guide plate and another sub-light guide plate
Two sub-light guide plates of light source groove assembly and connection.
Optionally, in every sub-light guide plate, described first connector includes rectangular preiection portion peace
Face；Described light source groove includes that protuberance under groove upper convex portion and groove, described light source are placed on
Under described groove on protuberance, under described groove upper convex portion to described groove, the distance of protuberance is more than institute
Stating the height of light source, under described groove, the length of protuberance is more than the length of described light source；
Wherein, the length of protuberance and described the under a length of described groove of described groove upper convex portion
The length sum in the rectangular preiection portion of a connection piece, the height of the planar portions of described first connector
Height equal to described groove upper convex portion；Under described groove, lower plane and the described rectangle of protuberance are convex
The lower plane in the portion of rising is same plane；
Then, in described light guide plate, the described groove epirelief of the described light source groove of a sub-light guide plate
In the rectangular preiection portion of the first connecting portion that portion is arranged on another sub-light guide plate described, connect two
Sub-light guide plate.
Optionally, the side that described incidence surface is relative is provided with connector；
Then, in described light guide plate, the second connector of a sub-light guide plate and another sub-light guide plate
The 3rd sub-light guide plate of connector assembly and connection two；
Wherein, described second connector includes the second lug boss and the second planar portions；Described 3rd
Connector includes the 3rd lug boss and the 3rd planar portions, and the length of described second lug boss is equal to institute
Stating the length of the 3rd lug boss, the height of described second lug boss is equal to described 3rd planar portions
Highly, the height of described second planar portions equal to the height of described 3rd lug boss, described second
Lug boss and described 3rd lug boss button and be connected two sub-light guide plates.
Optionally, two sides that described incidence surface is adjacent are provided with connecting portion；
Then, in described light guide plate, two sub-light guide plates pass through on the side that its incidence surface is adjacent
Connecting portion is connected.
Optionally, two sides that the incidence surface of described sub-light guide plate is adjacent are respectively arranged with
Four connectors and the 5th connector；
Wherein, described 4th connector includes the 4th lug boss and fourth plane portion；Described 5th
Connector includes the 5th lug boss and the 5th planar portions, and the length of described 4th lug boss is equal to institute
Stating the length of the 5th lug boss, the height of described 4th lug boss is equal to described 5th planar portions
Highly, the height in described fourth plane portion is equal to the height of described 5th lug boss,
Then, in described light guide plate, described 4th connecting portion of a sub-light guide plate described 4th convex
On 5th lug boss of the 5th connecting portion that the portion of rising is arranged on another sub-light guide plate described, connect two
Individual sub-light guide plate.
Optionally, to be provided with at least one recessed with described light source for the mid portion of described sub-light guide plate
The drop-center that groove is parallel, described drop-center is used for placing light source.
A kind of backlight module, including above-mentioned light guide plate.
The light guide plate of embodiment of the present invention offer and backlight module, described light guide plate is by multiple little chis
Very little sub-light guide plate combination is formed by connecting, and can meet the requirement of maximization, the simultaneously present invention
The sub-light guide plate that embodiment provides is undersized, can be by injection moulding or extruded etc.
Method makes the sub-light guide plate of the requirement meeting slim, and so combining light guide plate can also expire
The requirement of foot slim.
Accompanying drawing explanation
The cross-sectional view of the seed light guide plate that Fig. 1 provides for the embodiment of the present invention 1；
The partial component of the sub-light guide plate shown in Fig. 1 that Fig. 2 provides for the embodiment of the present invention 1
Structural representation；
The cross-sectional view of a kind of light guide plate that Fig. 3 provides for the embodiment of the present invention 1；
The plan structure of the light guide plate of a kind of lateral connection that Fig. 4 provides for the embodiment of the present invention 1
Schematic diagram；
The plan structure of a kind of longitudinally connected light guide plate that Fig. 5 provides for the embodiment of the present invention 1
Schematic diagram；
The section of the sub-light guide plate of a kind of unassembled connection that Fig. 6 provides for the embodiment of the present invention 1
Structural representation；
The vertical view knot of the light guide plate of the another kind of lateral connection that Fig. 7 provides for the embodiment of the present invention 1
Structure schematic diagram；
The vertical view knot of the light guide plate that another kind that Fig. 8 provides for the embodiment of the present invention 1 is longitudinally connected
Structure schematic diagram；
The plan structure schematic diagram of the seed light guide plate that Fig. 9 provides for the embodiment of the present invention 3；
The sub-light guide plate shown in Fig. 9 that Figure 10 provides for the embodiment of the present invention 3 in A1-A2 side
Cross-sectional view upwards；
The sub-light guide plate shown in Fig. 9 that Figure 11 provides for the embodiment of the present invention 3 in B1-B2 side
Cross-sectional view upwards；
The sub-assembling light guiding plate shown in Figure 11 that Figure 12 provides for the embodiment of the present invention 3 connects
Generalized section；
The sub-assembling light guiding plate shown in Figure 12 that Figure 13 provides for the embodiment of the present invention 3 connects
Schematic top plan view.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the technical side in the embodiment of the present invention
Case carries out clear, complete description, it is clear that described embodiment is only the present invention one
Divide embodiment rather than whole embodiments.
Embodiment 1:
Embodiments providing a kind of light guide plate, described light guide plate includes some sub-light guide plates；
Described sub-light guide plate includes incidence surface, reflecting surface and exiting surface.Light is entered at described sub-light guide plate
Face is provided with a light source groove, and described light source groove is used for placing light source；At described incidence surface
It is provided with connector on relative side；Wherein, described connector is used for making in described light guide plate
Sub-light guide plate be connected with each other.
Optionally, the first connector can be provided with on the side that described incidence surface is relative, by
First connecting portion of one sub-light guide plate and the light source groove of another sub-light guide plate can be with assembly and connections two
Individual sub-light guide plate, thus can be become large-sized light guide plate by undersized sub-assembling light guiding plate.
Optionally, as it is shown in figure 1, be the cross-sectional view of sub-light guide plate 1, described son
The left surface of light guide plate 1 is incidence surface 11, and lower surface is reflecting surface 12, and upper surface is exiting surface
13.Incidence surface 11 at described sub-light guide plate 1 is provided with a light source groove 100, described light
Source groove 100 is used for placing light source 2；Optionally, the light source groove 100 of described sub-light guide plate 1
The light source 2 of middle placement can be side view LED(lateral light-emitting diode).Described enter
The first connector 101 it is provided with on the side that light face 11 is relative.
As in figure 2 it is shown, described first connector includes rectangular preiection portion 1011 and planar portions 1012；
Described light source groove 100 includes protuberance 1002 under groove upper convex portion 1001 and groove, described groove
Under upper convex portion 1002 and described groove, the groove height of formation between protuberance 1001 is more than institute
Stating the height of light source 2, under described groove, length L2 of protuberance 1001 is more than described light source 2
Length L3, the most described light source 2 just can be placed under described groove on protuberance 1002.
Wherein, length L2 of described groove upper convex portion 1001 is protuberance 1002 under described groove
Length L3 with the length L4 sum in the rectangular preiection portion 1011 of described first connector is
L2=L3+L4, the height of the planar portions 1012 of described first connector is equal to described groove upper convex portion
The height of 1001 is all h1；The lower plane of protuberance 1011 and described rectangular preiection under described groove
The lower plane in portion 1002 is same plane；So, as shown in the a-quadrant of mark in Fig. 3, one
The described groove upper convex portion 1001 of the described light source groove of sub-light guide plate is arranged on another son described and leads
In the rectangular preiection portion 1011 of the first connector of tabula rasa, described first connector and described light source
Both grooves complementary structure, connects two sub-light guide plates.
Fig. 4 is the plan structure schematic diagram of Fig. 3, at the large-scale backlight mould of actual more than 40 inches
Needing the sub-light guide plate connected described in multiple embodiment of the present invention in group, its number can be according to liquid
The concrete size of crystal display determines, does not limits at this, and Fig. 4 is guide-lighting for connecting 2 sons
The schematic diagram of plate, adopts and can connect the sub-light guide plate of 3 and more than 3 in a like fashion and enter
Exercise and use.And as it is shown in figure 5, the direction connected is not limited, it is possible to longitudinally connected.
Optionally, connector can be provided with on the side that described incidence surface is relative, by a son
Two sons of the 3rd connector assembly and connection of second connector of light guide plate and another sub-light guide plate are led
Tabula rasa, thus can be become large-sized light guide plate by undersized sub-assembling light guiding plate.
As shown in the B region of mark in Fig. 6, by the second connector 102 of a sub-light guide plate 1
Fasten with the 3rd connector 103 of another sub-light guide plate 1 and just can be connected two sub-light guide plates,
Described second connector 102 includes the second lug boss 1021 and the second planar portions 1022；Described
Three connectors 103 include the 3rd lug boss 1031 and the 3rd planar portions 1032, and described second is protruding
Length L5 in portion 1021 is equal to length L6 of described 3rd lug boss 1031, and described second is protruding
The height h2 in portion 1021 is equal to the height h3 of described 3rd planar portions 1031, accordingly, described
The height h4 of the second planar portions is equal to the height h5 of described 3rd lug boss, described second lug boss
1021 and described 3rd lug boss 1031 lay respectively at the upper and lower surface of two sub-light guide plates；So
Described second connector 102 and described 3rd connector 103 complete complementary, so, described
Two connectors 102 and described 3rd connector 103 button and after, just two sub-light guide plates of connection.
After the sub-light guide plate of shown in Fig. 6 two is fastened and connected, its plan structure schematic diagram such as Fig. 7
Shown in, described light source 2 the most all in the side of described light guide plate, with the light source shown in Fig. 3 in
Between situation compare, so can make the area that the light of middle splicing part will not occupy because of light source
And affect the outgoing of light.As shown in Figure 8, the direction connected is not limited, also by this kind of situation
Can be longitudinally connected.
In Fig. 3 and Fig. 6, described connecting-piece structure is simple, and the most stepped, making is got up
The easiest, certainly, the connector in the present invention can also is that other structures, such as the second connector
For the triangular form protruded, described 3rd connector is recessed triangular form, and two connectors also may be used
With card with together with, connect two sub-light guide plates；Or, other attachment structures being readily apparent that
As click on fashion etc. can, do not limit at this.
Fig. 7 and Fig. 8 is the schematic diagram connecting 2 sub-light guide plates, to connect 3 and 3
Individual above sub-light guide plate uses, it is also possible to the mode shown in Fig. 3 of employing connects, and passes through
The light source groove of sub-light guide plate connects the first connector of the 3rd sub-light guide plate as shown in Figure 1.
Optionally, on the reflecting surface of described light guide plate, making has light guiding points pattern.
Optionally, it is additionally provided with FPC(Flexible Printed in described light source groove 11
Circuit, FPC) or Metal PCB(Metal Printed Circuit Board,
Operplate printing wiring board), these wiring boards light source luminescent in driving described light source groove.
So, on the sub-light guide plate 1 that the present embodiment provides, the light source groove 11 of incidence surface side
In the light that sends of light source 2, the light guide plate through reflecting surface side and the reflection of light guiding points pattern
After, penetrate from the exit facet of described light guide plate equably, for the LCD in display device
Plate provides the area source of uniform light, so that liquid crystal display is by controlling on liquid crystal layer
The electric field applied, modulates the light come from backlight module incidence, and then display image.
The light guide plate that the embodiment of the present invention provides is to be connected by multiple undersized sub-light guide plate combinations
, the requirement of maximization can be met, small size that the embodiment of the present invention provides simultaneously
Light guide plate can be made with application injection system or other modes, can meet slim's
The sub-light guide plate required, the light guide plate being so assembled into meets the requirement of slim the most simultaneously.
Embodiment 2
Embodiments provide the preparation method of a kind of sub-light guide plate as shown in Figure 1, institute
The method of stating includes:
S1, prepare the injection mould that can form sub-light guide plate shape as shown in figures 1 to 6
Tool.
S2, use injection instrument inject light guide panel material in described injection molding, form son guide-lighting
Plate just plate.
S3, use lazer(laser), etching (etching) or Indentation(hits a little)
On described sub-light guide plate just plate, process light guiding points pattern etc. method, form sub-light guide plate.
Embodiment 3:
Embodiments providing a kind of light guide plate, described light guide plate includes some sub-light guide plates；
Described sub-light guide plate includes incidence surface, reflecting surface and exiting surface.Light is entered at described sub-light guide plate
Face is provided with a light source groove, and described light source groove is used for placing light source；At described incidence surface
It is provided with connector on two adjacent sides；Wherein, described connector is used for making described leaded light
Sub-light guide plate in plate is connected with each other.
As it is shown in figure 9, be the top view of sub-light guide plate 1, Figure 10 is that the son shown in Fig. 9 is guide-lighting
Plate sectional view on A1-A2 direction；Figure 11 is that the sub-light guide plate shown in Fig. 9 is in B1-B2 side
Sectional view upwards.
As shown in Figure 10, the right flank of described sub-light guide plate 1 is incidence surface 11, and lower surface is anti-
Penetrating face 12, upper surface is exiting surface 13.Incidence surface 11 at described sub-light guide plate 1 is provided with
One light source groove 100, described light source groove 100 is used for placing light source 2；Optionally, described
The light source 2 placed in the light source groove 100 of sub-light guide plate 1 can be side view LED(side
Face light emitting diode).
As shown in figure 11, two sides that described incidence surface (not shown) is adjacent are divided
It is not provided with the 4th connector 104 and the 5th connector 105.
Wherein, described 4th connector 104 includes the 4th lug boss 1041 and fourth plane portion
1042；Described 5th connector 105 includes the 5th lug boss 1051 and the 5th planar portions 1052,
Length L7 of described 4th lug boss 1041 is equal to length L8 of described 5th lug boss 1051,
The height h6 of described 4th lug boss 1041 is equal to the height h7 of described 5th planar portions 1052,
The height h8 in described fourth plane portion 1041 is equal to the height h9 of described 5th lug boss 1051.
Described 4th lug boss 1041 and described 5th lug boss 1051 lay respectively at described sub-light guide plate
Upper and lower surface；The most described 4th connector 104 and described 5th connector 105 are the most mutually
Mend, can intactly snap together.So, in light guide plate as shown in figure 12, a son is led
Described 4th lug boss 1041 of described 4th connecting portion of tabula rasa just can be arranged on described another
On 5th lug boss 1051 of the 5th connecting portion of sub-light guide plate, connect two sub-light guide plates.Figure
13 is the plan structure schematic diagram of Figure 12.
In Figure 11 and Figure 12, described connecting-piece structure is simple, the most stepped, makes
Coming the easiest, certainly, the connector in the present invention can also is that other structures, as the 4th connects
Part is the triangular form protruded, and described 5th connector is recessed triangular form, and two connectors are also
Can block with together with, connect two sub-light guide plates；Or, the connection knot that other are readily apparent that
Structure can, do not limit at this.
Optionally, as shown in Figure 10, the mid portion of described sub-light guide plate is provided with at least one
The drop-center 103 parallel with described light source groove, described drop-center 103 is also used for placing light
Source 2.
Make on the reflecting surface of described light guide plate and have light guiding points pattern.
Optionally, it is additionally provided with FPC or Metal PCB in described light source groove 11, these lines
Road plate light source luminescent in driving described light source groove.
So, on the sub-light guide plate 1 that the present embodiment provides, the light source groove 11 of incidence surface side
In the light that sends of light source 2, the reflector through reflecting surface side and the reflection of light guiding points pattern
After, penetrate from the exit facet of described light guide plate equably, for the LCD in display device
Plate provides the area source of uniform light, so that liquid crystal display is by controlling on liquid crystal layer
The electric field applied, modulates the light come from backlight module incidence, and then display image.
The large-scale backlight module of actual more than 40 inches needs to connect in multiple embodiment of the present invention
Described sub-light guide plate, its number can determine according to the concrete size of liquid crystal display,
This does not limits, and Figure 13 is the schematic diagram connecting 2 sub-light guide plates, adopts and in a like fashion may be used
The sub-light guide plate connecting 3 and more than 3 uses.
The light guide plate that the embodiment of the present invention provides is to be connected by multiple undersized sub-light guide plate combinations
, the requirement of maximization can be met, small size that the embodiment of the present invention provides simultaneously
Light guide plate can be made with application injection system or other modes, can meet slim's
The sub-light guide plate required, the light guide plate being so assembled into meets the requirement of slim the most simultaneously.
Embodiment 4
Embodiments provide the preparation method of a kind of sub-light guide plate as shown in Figure 10, institute
The method of stating includes:
S1, prepare the injection molding that can form sub-light guide plate shape as shown in Figure 10.
S2, use injection instrument inject light guide panel material in described injection molding, form son guide-lighting
Plate just plate.
The methods such as S3, employing lazer, etching or Indentation are at described sub-light guide plate
Just process light guiding points pattern on plate, form sub-light guide plate.
Inventive embodiments is formed by connecting by multiple undersized sub-light guide plate combinations, can meet
The requirement maximized, the sub-light guide plate that the embodiment of the present invention provides simultaneously is application injection system system
Make, the requirement of slim can be met.
Embodiment 5
The embodiment of the present invention additionally provides a kind of backlight module, and described backlight module includes embodiment 1
With the light guide plate described in embodiment 3 and other assemblies such as reflecting plate, diffuser plate.The described back of the body
Light module is applied on the liquid crystal display component of there is a need to backlight.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is also
Being not limited to this, any those familiar with the art is at the technology model that the invention discloses
In enclosing, change can be readily occurred in or replace, all should contain within protection scope of the present invention.
Therefore, protection scope of the present invention should described be as the criterion with scope of the claims.
Claims (4)
1. a light guide plate, it is characterised in that including: some sub-light guide plates；Described son is guide-lighting
Plate includes incidence surface, reflecting surface and exiting surface；
Incidence surface at described sub-light guide plate is provided with a light source groove, and described light source groove is used
In placing light source；
The side that described incidence surface is relative or neighbor is provided with the first connector；
In every sub-light guide plate, described first connector includes rectangular preiection portion and planar portions；Institute
State light source groove and include that protuberance under groove upper convex portion and groove, described light source are placed on described groove
On lower protuberance, under described groove upper convex portion and described groove, the groove of formation between protuberance is high
Degree is more than the height of described light source, and under described groove, the length of protuberance is more than the length of described light source；
Wherein, the length of protuberance and described the under a length of described groove of described groove upper convex portion
The length sum in the rectangular preiection portion of a connection piece, the height of the planar portions of described first connector
Height equal to described groove upper convex portion；Under described groove, lower plane and the described rectangle of protuberance are convex
The lower plane in the portion of rising is same plane；
Then, in described light guide plate, the described groove epirelief of the described light source groove of a sub-light guide plate
In the rectangular preiection portion of the first connector that portion is arranged on another sub-light guide plate, connect two sons and lead
Tabula rasa.
Light guide plate the most according to claim 1, it is characterised in that
Make on the reflecting surface of described light guide plate and have light guiding points pattern.
Light guide plate the most according to claim 1, it is characterised in that
The light source placed in the groove of described light guide plate is lateral light-emitting diode.
4. a backlight module, it is characterised in that include described in claim 1-3 any one
Light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310418990.6A CN103472524B (en) | 2013-09-13 | 2013-09-13 | A kind of light guide plate and backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310418990.6A CN103472524B (en) | 2013-09-13 | 2013-09-13 | A kind of light guide plate and backlight module |
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| Publication Number | Publication Date |
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| CN103472524A CN103472524A (en) | 2013-12-25 |
| CN103472524B true CN103472524B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310418990.6A Active CN103472524B (en) | 2013-09-13 | 2013-09-13 | A kind of light guide plate and backlight module |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110173663A (en) * | 2019-06-18 | 2019-08-27 | 华域视觉科技(上海)有限公司 | The guide structure in no-buffer domain and car light comprising it |
| CN113948544B (en) * | 2021-10-15 | 2023-09-12 | 厦门天马微电子有限公司 | Display panel, spliced screen and display device |
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| TW200745681A (en) * | 2006-04-21 | 2007-12-16 | Samsung Electro Mech | Backlight unit for liquid crystal display device |
| CN101295054A (en) * | 2007-04-27 | 2008-10-29 | 香港应用科技研究院有限公司 | Eave top light guiding device and back light device using the same |
| CN101398148A (en) * | 2007-09-28 | 2009-04-01 | 富士迈半导体精密工业（上海）有限公司 | Area source device for LED |
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| WO2013058961A1 (en) * | 2011-10-20 | 2013-04-25 | Rambus Inc. | Modular light-emitting panel assembly |
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|---|---|---|---|---|
| JP4735849B2 (en) * | 2006-10-26 | 2011-07-27 | ミネベア株式会社 | Surface lighting device |
| TWI417587B (en) * | 2009-03-10 | 2013-12-01 | Au Optronics Corp | Light guide plate combination |
| EP2354817A1 (en) * | 2009-12-14 | 2011-08-10 | Lg Electronics Inc. | Backlight unit, and display apparatus including the backlight unit |
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- 2013-09-13 CN CN201310418990.6A patent/CN103472524B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200745681A (en) * | 2006-04-21 | 2007-12-16 | Samsung Electro Mech | Backlight unit for liquid crystal display device |
| CN101295054A (en) * | 2007-04-27 | 2008-10-29 | 香港应用科技研究院有限公司 | Eave top light guiding device and back light device using the same |
| CN101398148A (en) * | 2007-09-28 | 2009-04-01 | 富士迈半导体精密工业（上海）有限公司 | Area source device for LED |
| CN102047174A (en) * | 2008-05-27 | 2011-05-04 | Lg电子株式会社 | LED back-light unit and liquid crystal display device using the same |
| WO2013058961A1 (en) * | 2011-10-20 | 2013-04-25 | Rambus Inc. | Modular light-emitting panel assembly |
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| Publication number | Publication date |
|---|---|
| CN103472524A (en) | 2013-12-25 |
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