CN107102477A - LED light bar, backlight module and display device - Google Patents
LED light bar, backlight module and display device Download PDFInfo
- Publication number
- CN107102477A CN107102477A CN201710442627.6A CN201710442627A CN107102477A CN 107102477 A CN107102477 A CN 107102477A CN 201710442627 A CN201710442627 A CN 201710442627A CN 107102477 A CN107102477 A CN 107102477A
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- Prior art keywords
- led light
- light bar
- led
- branch
- cabling
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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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Led Device Packages (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention provides a kind of LED light bar, including：Multiple LED and FPC.Wherein, FPC includes substrate and is located at the first cabling and the second cabling of substrate both sides respectively, aforesaid substrate includes the branch that main part extends with main body, first cabling is electrically connected with the second cabling by the via hole on branch, so as to by the way that the via hole for limiting LED light bar width is displaced downwardly into branch, the significantly reduction of LED light bar width is realized, the narrow frame demand of display device is met.
Description
Technical field
The present invention relates to display technology field, and more particularly to a kind of LED light bar includes the backlight module of the LED light bar
And display device.
Background technology
Display device on existing market is mainly backlight liquid crystal display device, and it includes shell, in shell
Liquid crystal panel and backlight module, because liquid crystal panel does not light, it is necessary to which the light source provided by backlight module is come normal aobvious in itself
Diagram picture, therefore, backlight module are one of key components of display device.Backlight module is according to the difference of light source placement location point
Into two kinds of side entrance back module and down straight aphototropism mode set.Wherein, side entrance back module is that LED light bar is located at into liquid crystal surface
The backlight module edge at plate rear, relative to have down straight aphototropism mode set, side entrance back module is advantageously in display device
Narrow frame, meet the current people requirement lightening to display device, therefore, as main flow backlight module.
As the core component in backlight module, LED light bar is particularly important, wherein, when LED light bar uses two-layer wiring,
It is smaller than using width during individual layer cabling, more conform to the demand of narrow frame, but LED light bar is when using two-layer wiring,
It is accomplished by setting via hole to electrically connect the two-layer wiring, the presence of via hole can limit the further diminution of its width, especially
The lamp bar width of LED afterbodys is corresponded to, because via hole can locally have projection, via hole is such as placed on LED light emission sides
Optical effect can be influenceed, therefore via hole can only be placed on to LED afterbodys side, in current design, corresponding to LED afterbodys
Lamp bar width can only accomplish 0.8~0.9mm or so, it is impossible to meet the requirement of present narrow frame display device.
The content of the invention
The present invention is intended to provide a kind of LED light bar and backlight module including the LED light bar, display device, by will limit
The via hole of LED light bar width processed is displaced downwardly to branch, it is achieved thereby that the significantly reduction of LED light bar width, meets display
The narrow frame demand of device.
First, the present invention provides a kind of LED light bar, including：Multiple LED and FPC.Wherein, FPC bag
Include substrate and be located at the first cabling and the second cabling of substrate both sides respectively, aforesaid substrate includes main part and extended with main body
The branch gone out, the first cabling is electrically connected with the second cabling by the via hole on branch.
In an embodiment of the invention, above-mentioned branch includes cabling portion and fixed part, and cabling portion, which is located at, to be fixed
Between portion and main part, via hole is located at the end in cabling portion.
In an embodiment of the invention, above-mentioned cabling minister 10mm.
In an embodiment of the invention, above-mentioned branch is L-shaped.
In an embodiment of the invention, above-mentioned LED light bar includes multigroup LED, and every group of LED includes multiple mutual strings
The LED of connection, every group of LED corresponds to a branch.
In an embodiment of the invention, the back width in aforementioned body portion is 0.4-0.5mm, the back of main part
Corresponding to LED afterbody.
In an embodiment of the invention, the nose width in aforementioned body portion is 0.7mm, the front end correspondence of main part
In LED light emission side.
Secondly, the present invention also provides a kind of backlight module, including framework, light guide plate and above-mentioned LED light bar, wherein, framework
The periphery of light guide plate is centered around, LED light emission side corresponds to the incidence surface of light guide plate, and the branch of LED light bar is fixed on the frame
On body.
In addition, the present invention also provides a kind of display device, including display panel, main FPC and above-mentioned LED light bar,
The branch of the LED light bar is fixed on the main FPC.
In an embodiment of the invention, can be by way of welding or adhesive tape sticking by point of LED light bar
Branch is fixed on main FPC.
Compared with prior art, technical scheme provided by the present invention has advantages below：The present invention provides a kind of LED
Bar, including：Multiple LED and FPC.Wherein, FPC includes substrate and first positioned at substrate both sides walks respectively
Line and the second cabling, aforesaid substrate include the branch that main part extends with main body, and the first cabling and the second cabling are logical
The via hole electrical connection crossed on branch, so that by the way that the via hole for limiting LED light bar width is displaced downwardly into branch, it is real
Show the significantly reduction of LED light bar width, meet the narrow frame demand of display device.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, of the invention is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 a are a kind of front schematic views for LED light bar that embodiment of the present invention is provided；
Fig. 1 b are a kind of schematic rear views for LED light bar that embodiment of the present invention is provided；
Fig. 2 is a kind of sectional view for backlight module that embodiment of the present invention is provided；
Fig. 3 is a kind of sectional view for display device that embodiment of the present invention is provided；
Fig. 4 a are the front schematic views of display device shown in Fig. 3；
Fig. 4 b are the schematic rear views of display device shown in Fig. 3.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, in order to just
Part related to the present invention rather than entire infrastructure are illustrate only in description, accompanying drawing.
The present invention provides a kind of LED light bar, including：Multiple LED and FPC.Wherein, FPC includes base
Plate and the first cabling and the second cabling for being located at substrate both sides respectively, aforesaid substrate include what main part extended with main body
Branch, the first cabling is electrically connected with the second cabling by the via hole on branch, so that by that will limit LED light bar
The via hole of width is displaced downwardly to branch, realizes the significantly reduction of LED light bar width, meets the narrow frame of display device and needs
Ask.
First, the present invention provides a kind of LED light bar of two-sided cabling, and Fig. 1 a are one kind that embodiment of the present invention is provided
The front schematic view of LED light bar, Fig. 1 b are a kind of schematic rear view for LED light bar that embodiment of the present invention is provided, such as Fig. 1 a
With shown in Fig. 1 b, the LED light bar 10 that the embodiment is provided is a kind of LED light bar of two-sided cabling, and it includes FPC
What 101 multiple LED 102 with being located on the FPC 101, multiple LED 102 were spatially spaced apart is arranged on flexibility
On the front of wiring board 101.FPC 101 includes substrate 11, and for connecting multiple LED 102 and to the plurality of
The routing layer of the feed drive signals of LED 102, the routing layer includes：Positioned at the positive first cabling 103a of substrate 11, and, position
The second cabling 103b, the first cabling 103a and the second cabling 103b in the back side of substrate 11 passes through positioned at through the FPC
Via hole 104 on 101 is electrically connected.LED light bar also includes connection end 14, for being connected with the signal lead outside LED light bar,
For providing driving pulse for LED light bar.
Further, substrate 11 includes the branch 13 that main part 12 extends with main body 12, the first cabling 103a
Electrically connected with the second cabling 103b by the via hole 104 on branch 13.Each LED 102 include light emission side 102a with
Afterbody 102b, light emission side 102a is oppositely arranged with afterbody 102b, and main part 12 includes corresponding to before the light emission side 102a of LED 102
End, with the back 12b corresponding to the afterbody 102b of LED 102, one end of branch 13 is connected with back 12b, and with main part 12
It is integrally formed.Via hole 104 is located on branch 13,12 points of the first cabling 103a and the second cabling 103b one end main body
Do not extend on branch 13, and electrically connected by the via hole 104 on branch 13.Due to by via hole main body
Branch is displaced downwardly to, and after the LED light bar is located in backlight module or display device, namely after composition module, will can set
The branch reflexed of via hole is equipped with to backlight module or the back side of display device, in this way, the back of the body of main part 12 can be reduced
Portion 12b width, meets the narrow frame demand of display device.
In the present embodiment, the back 12b of main part 12 width for example could be arranged to 0.4-0.5mm, can meet and work as
The requirement of the display device of preceding ultra-narrow frame.Accordingly, can the front end 12b in enlarged body portion 12 on this basis width,
Front end 12b width can be for example set to 0.7mm, can so increase LED light bar with backlight module light guide plate it is bonding
The adhesion strength of width, increase LED light bar and light guide plate, the LED light bar that certain present invention is provided not only is defined to above-mentioned chi
It is very little.
Further, it could be arranged to, branch 13 includes cabling portion 131 and fixed part 132, wherein 131, cabling portion
Between fixed part 132 and main part 12, via hole 104 is located at the end in cabling portion 131.Namely cabling portion is led to place
Through hole, after the LED light bar is located in backlight module or display device, namely after composition module, will be provided with point of via hole
Branch's reflexed to backlight module or the back side of display device, meanwhile, the branch is fixed to backlight module using fixed part
Or the back side of display device, for example, branch can be fixed on into display device by way of adhesive tape sticking or welding
On main FPC.
In the present embodiment, for example could be arranged to, the long 10mm in cabling portion 131, namely via hole 104 away from main part away from
From for 10mm, certainly, the present invention is not limited with this size.
Further, in an embodiment of the invention, multiple LED 102 include at least two groups LED 102, every group
LED 102 is included between multiple LED 102 being serially connected, different groups by being connected in parallel, and compared to whole series connection, packet is set
Meter can reduce the driving voltage of LED light bar, reduce power consumption, can also be according to the brightness demands pair of the different zones of display device
LED light bar is lighted, and improves display quality.In the present embodiment, it could be arranged to：Every group of LED 102 corresponds to one point
A via hole is provided with branch 13, each branch 13, the first cabling 105a for being connected with every group of LED 102, second walk
Line 105b is electrically connected by a via hole, meanwhile, the quantity of increase branch can also increase LED light bar consolidating in module
Determine intensity.
Further, in the present embodiment, branch 13 can be linear or L-shaped.For example in order to increase LED light bar
Fixed effect in module, while reducing the frame at the two ends corresponding to LED light bar of display device, could be arranged to；Position
Branch in the middle of LED light bar is linear, and the branch positioned at LED light bar two ends is L-shaped, and the bending end court of the L-shaped
Bent in the middle of to LED light bar.
The LED light bar that the present invention is provided, by the way that the via hole for limiting LED light bar width is displaced downwardly into branch, is realized
The significantly reduction of LED light bar width, meets the narrow frame demand of display device.
Secondly, present invention also offers a kind of backlight module, Fig. 2 is a kind of backlight module that embodiment of the present invention is provided
Sectional view, as shown in Fig. 2 backlight module 20 include framework 22, glue frame 23, and lamination are arranged on the reflector plate in framework 22
25th, light guide plate 21 and optical diaphragm group 24；Framework 22 is set around the periphery of light guide plate 21, is set in the incidence surface of light guide plate 21
LED light bar 10 is equipped with, LED light bar 10 is located inside framework 22, and is located between glue frame 23 and the incidence surface of light guide plate 21, LED
LED light emission side corresponds to the incidence surface of light guide plate 21 in lamp bar 10.
Further, as shown in Figures 1 and 2, LED light bar 10 is a kind of LED light bar of two-sided cabling, including flexible circuitry
Plate and multiple LED on the FPC.FPC includes substrate, and for connecting multiple LED and to this
The routing layer of multiple LED feed drives signals, the routing layer includes：Positioned at the first cabling of substrate front side, and, positioned at substrate
Second cabling at the back side；Substrate includes the branch that main part extends with main body, and the first cabling passes through with the second cabling
Via hole electrical connection on branch 13.
In the present embodiment, the front end of LED light bar 10 is bonded on light guide plate 21 for example, by double faced adhesive tape, LED light bar 10
The reflexed of branch 13 to the side of backlight module 20 and fixed in framework 22, for example, adhesive tape sticking or welding can be passed through
Mode branch is fixed in framework, the framework for example can be chase.
In addition, the present invention also provides a kind of display device, Fig. 3 is a kind of display device that embodiment of the present invention is provided
Sectional view, as shown in figure 3, display device 100 includes backlight module 30 and display panel 40.
Display panel 40 is, for example, the liquid crystal display panel that itself can not be lighted, and the liquid crystal display panel includes color membrane substrates
41st, array base palte 42 and the liquid crystal layer being sealed between above-mentioned color membrane substrates and array base palte, further, the liquid crystal
Show that panel also includes being attached to the upper polaroid of the array base palte side of color membrane substrates, is attached to the dorsad color of array base palte
The down polaroid of ilm substrate side.Wherein, the length of color membrane substrates 41 is less than the length of array base palte 42, that is, array base palte
42 stepped regions into box area, and connection terminal including being overlapped with color membrane substrates 41, one end weldering of main FPC 43
It is connected on the stepped region, main FPC and is provided with IC chip 44, when being assembled into module, main FPC 43 is anti-
Fold to the back side and the fixation of module.
Backlight module 30 includes：Glue frame 31, reflector plate 33, light guide plate 32 and optical diaphragm group that lamination is set；Glue frame
31 are set around the periphery of light guide plate 32, and the incidence surface of light guide plate 32 is provided with LED light bar 10, and LED light bar 10 is located at glue frame
Between 31 and the incidence surface of light guide plate 32, LED light emission side corresponds to the incidence surface of light guide plate 32 in LED light bar 10, from LED hairs
The light gone out is incident to display panel 40 via light guide plate 32, optical model sheet group.
Further, as shown in Figures 1 and 2, LED light bar 10 is a kind of LED light bar of two-sided cabling, including flexible circuitry
Plate and multiple LED on the FPC.FPC includes substrate, and for connecting multiple LED and to this
The routing layer of multiple LED feed drives signals, the routing layer includes：Positioned at the first cabling of substrate front side, and, positioned at substrate
Second cabling at the back side；Substrate includes the branch that main part extends with main body, and the first cabling passes through with the second cabling
Via hole electrical connection on branch 13.
In the present embodiment, the front end of LED light bar 10 is bonded on light guide plate 32 for example, by double faced adhesive tape, LED light bar 10
Branch 13 be fixed on main FPC 43, and together with main FPC 43 reflexed to display device 100 the back of the body
Face.
Specifically, branch can be fixed on main FPC by way of adhesive tape sticking or welding, Fig. 4 a
It is the front schematic view of display device shown in Fig. 3, Fig. 4 b are the schematic rear view of display device shown in Fig. 3, such as Fig. 4 a and Fig. 4 b
Shown, multiple branches 13 are fixed on the back side of main FPC 43, LED by way of adhesive tape sticking or welding respectively
The connection end 14 of bar is connected with positioned at the positive signal lead of main FPC, for providing driving pulse for LED light bar.Enter
One step, branch 13 includes cabling portion 131 and fixed part 132, and via hole 104 is located at the end in cabling portion 131, fixed part
Routing layer is not provided with 132, when branch 13 is fixed on main FPC 43, the position correspondence of adhesive tape sticking or welding
In fixed part 132, in order to avoid the cabling in cabling portion is caused damage in adhesive tape sticking or welding.
The branch is fixed to company by the present invention by the way that the via hole for limiting LED light bar width is displaced downwardly into branch
Connect on the main FPC of display panel, its reflexed together with main FPC to the back side of display device, is realized
The significantly reduction of LED light bar width, meets the narrow frame demand of display device.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art it is various it is obvious change,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although the present invention is carried out by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. a kind of LED light bar, including：Multiple LED and FPC,
Characterized in that, the FPC includes：Substrate, and, respectively positioned at the substrate both sides the first cabling with
Second cabling,
The substrate includes the branch that main part and main body extend, first cabling and the second cabling by positioned at
Via hole electrical connection on the branch.
2. LED light bar according to claim 1, it is characterised in that the branch includes cabling portion and fixed part, described
Cabling portion is located between the fixed part and the main part, and the via hole is located at the end in the cabling portion.
3. LED light bar according to claim 2, it is characterised in that the cabling minister 10mm.
4. LED light bar according to claim 1, it is characterised in that the branch is L-shaped.
5. LED light bar according to claim 1, it is characterised in that the LED light bar includes multigroup LED, every group of LED bag
Multiple LED being serially connected are included, every group of LED corresponds to a branch.
6. LED light bar according to claim 1, it is characterised in that the back width of the main part is 0.4-0.5mm,
The back of the main part corresponds to the afterbody of the LED.
7. LED light bar according to claim 6, it is characterised in that the nose width of the main part is 0.7mm, described
The front end of main part corresponds to the light emission side of the LED.
8. a kind of backlight module, including framework, light guide plate, and, the LED light bar as described in claim any one of 1-7,
Wherein, the framework is centered around the periphery of the light guide plate, and the multiple LED light emission side corresponds to the light guide plate
Incidence surface, the branch of the LED light bar is fixed in the framework.
9. a kind of display device, including：Display panel, main FPC, and, as described in claim any one of 1-7
LED light bar,
The branch of the LED light bar is fixed on the main FPC.
10. display device according to claim 9, it is characterised in that by institute by way of welding or adhesive tape sticking
The branch for stating LED light bar is fixed on the main FPC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710442627.6A CN107102477B (en) | 2017-06-13 | 2017-06-13 | LED lamp strip, backlight unit and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710442627.6A CN107102477B (en) | 2017-06-13 | 2017-06-13 | LED lamp strip, backlight unit and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107102477A true CN107102477A (en) | 2017-08-29 |
| CN107102477B CN107102477B (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710442627.6A Active CN107102477B (en) | 2017-06-13 | 2017-06-13 | LED lamp strip, backlight unit and display device |
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| Country | Link |
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| CN (1) | CN107102477B (en) |
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| CN108363240A (en) * | 2018-02-09 | 2018-08-03 | 京东方科技集团股份有限公司 | Lamp bar and backlight module, display device |
| CN108646464A (en) * | 2018-04-19 | 2018-10-12 | Oppo广东移动通信有限公司 | Backlight, display screen module and display device |
| CN109188768A (en) * | 2018-09-30 | 2019-01-11 | 厦门天马微电子有限公司 | Backlight module and display device |
| CN109917636A (en) * | 2017-12-13 | 2019-06-21 | 南京机器人研究院有限公司 | A kind of smartwatch adjusting light transmittance |
| CN114967247A (en) * | 2021-02-27 | 2022-08-30 | 华为技术有限公司 | Backlight assembly and display module |
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| CN114967247A (en) * | 2021-02-27 | 2022-08-30 | 华为技术有限公司 | Backlight assembly and display module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107102477B (en) | 2020-06-19 |
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