CN109459889A - A kind of backlight module and display device - Google Patents
A kind of backlight module and display device Download PDFInfo
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- CN109459889A CN109459889A CN201811573602.0A CN201811573602A CN109459889A CN 109459889 A CN109459889 A CN 109459889A CN 201811573602 A CN201811573602 A CN 201811573602A CN 109459889 A CN109459889 A CN 109459889A
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- backlight
- dew copper
- backlight module
- fpc
- windowing
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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
- G02F1/133603—Direct backlight with LEDs
-
- 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
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
-
- 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
- G02F1/133612—Electrical details
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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)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a kind of backlight module and display devices, belong to field of display technology, for reducing the fraction defective of backlight module, and reduce the difficulty of backlight module assembling.The backlight module includes: LED component, including LED chip and backlight FPC, and the LED chip is arranged in the first surface of the backlight FPC, is provided with dew copper windowing on the second surface on the backlight FPC relative to the first surface；Glue iron, is arranged in the second surface side of the backlight FPC, and the glue iron is provided with aperture in position corresponding with the dew copper windowing；Conductive structure, the conductive structure is pasted on the dew copper that the dew copper windowing exposes, and the aperture passed through on the glue iron is connected with the main FPCA to power for the backlight FPC.
Description
Technical field
The present invention relates to field of display technology, in particular to a kind of backlight module and display device.
Background technique
Currently, screen mobile phone refers to that true screen accounting can achieve 80% or more comprehensively, and possess the hand of ultra-narrow frame design
Machine, due to possessing the higher feature of screen accounting using comprehensive screen mobile phone, thus increasingly by the welcome of consumer.Due to complete
Face mobile phone is high for the requirement for shielding accounting, and the lower frame (board) of mobile phone is commonly called as " chin " and also has to become narrow.
Currently, in order to reduce lower board, backlight flexible circuit board in current COF (Chip on FPC) backlight module
LED light bar (Light Bar, L-Bar) on (Flexible Printed Circuit, FPC), which can use instead, reversely to be assembled
Mode is reduced before lamp and the distance of glue frame barricade with this.
But above-mentioned assembling mode to need to reserve aperture in the glue iron bottom of backlight module, to make the gold of L-Bar
Finger pass through this aperture after fold be attached to main flexible circuit board component (Flexible Printed Circuit Assembly,
FPCA it is welded again on) to complete to assemble.Above-mentioned assembling mode, since the aperture that glue iron bottom is reserved is smaller, by golden hand
Finger is higher across required precision of the aperture for automatic board, and golden finger is easy to be scratched when passing through aperture, causes short
The bad phenomenons such as road, further, since needing reserved aperture, and tapping is not available shading glue and carries out bound edge, is easy light leakage.
Summary of the invention
The embodiment of the present invention provides a kind of backlight module and display device, for reducing the fraction defective of backlight module, with
And reduce the difficulty of backlight module assembling.
In a first aspect, providing a kind of backlight module, comprising:
The first surface of the backlight FPC is arranged in LED component, including LED chip and backlight FPC, the LED chip,
Dew copper windowing is provided on second surface on the backlight FPC relative to the first surface；
The second surface side of the backlight FPC is arranged in glue iron, and the glue iron is in position corresponding with the dew copper windowing
It installs and is equipped with aperture；
Conductive structure, the conductive structure is pasted on the dew copper that the dew copper windowing exposes, and passes through the glue iron
On aperture be connected with the main FPCA to power for the backlight FPC.
In one possible implementation, the shape of the dew copper windowing is in rectangle, triangle, circle and diamond shape
Any one.
In one possible implementation, the shape of aperture is identical as the shape of the dew copper windowing on the glue iron.
In one possible implementation, section of the conductive structure perpendicular to the centerline direction of the dew copper windowing
The shape in face is identical as the shape of the dew copper windowing.
In one possible implementation, the area of the dew copper windowing is greater than 0.04mm2, and it is not more than the backlight
The 1/2 of the upper second surface area of FPC.
In one possible implementation, the area of aperture is greater than the area that the dew copper opens a window on the glue iron.
In one possible implementation, every one side of aperture is corresponding with dew copper windowing on the glue iron
The distance between every one side is not less than 0.2mm.
In one possible implementation, the conductive structure is conductive tape or conducting foam.
In one possible implementation, the backlight FPC includes multiple dew copper windowings；
Wherein, the anode or cathode that the dew copper that each dew copper windowing exposes is the backlight FPC.
In one possible implementation, the quantity of the dew copper windowing is quantity, the LED core by the LED chip
What the supply voltage of the operating voltage of piece and the main FPCA determined.
Second aspect provides a kind of display device, including the backlight module as described in terms of above-mentioned, further includes:
Display panel is set to the side that the backlight module deviates from glue iron；
Main FPCA is set on the display panel, and the surface that the glue iron deviates from backlight FPC is pasted on after turning down
On；
Wherein, the main PFCA is provided with dew copper windowing, the dew copper windowing and institute close to the surface of the backlight module
State reveal on backlight FPC copper windowing position it is corresponding, and the conductive structure for including by the backlight module is by the backlight FPC
It is electrically connected with the dew copper of the main PFCA corresponding position.
The present invention has the beneficial effect that:
Backlight module and display device provided by the embodiment of the present invention, the backlight module, comprising: LED component comprising
LED chip and backlight FPC, LED chip are arranged in the first surface of backlight FPC, on backlight FPC relative to first surface second
Dew copper windowing is provided on surface；The second surface side of backlight FPC is arranged in glue iron, and glue iron is corresponding with dew copper windowing
Position is provided with aperture；Conductive structure, conductive structure is pasted on the dew copper that dew copper windowing exposes, and passes through opening on glue iron
The main FPCA of Kong Yuwei backlight FPC power supply is connected.Backlight module provided by the embodiment of the present invention, by backlight FPC
Second surface setting dew copper windowing, Jiao Tieshang is provided with position corresponding with dew copper windowing and is provided with aperture, and passes through conductive knot
Structure is connected the dew copper that copper windowing exposes is revealed with main FPCA, thus realize power supply and control of the main FPCA to backlight FPC, this
Sample can then cancel existing golden finger design, and without reserving aperture in glue iron bottom end, glue iron bottom end is less easily-deformable,
Further, since the aperture in the biggish plane of area of glue iron in the embodiment of the present invention, compare existing bottom end aperture, hole it is big
It is small that reduce the assembling difficulty of automatic board, error rate when assembled can be thereby reduced relatively more greatly, it is also just corresponding
Improve the yield of backlight FPC.Simultaneously as bottom end is not necessarily to reserved aperture, then shading glue can be used, bottom end is wrapped completely
Side further promotes the yield of backlight FPC to reduce the probability of light leakage.
Detailed description of the invention
Fig. 1 is the front schematic view of backlight module in the prior art；
Fig. 2 is the enlarged diagram in region I in backlight module in the prior art；
Fig. 3 is the schematic rear view of backlight module in the prior art；
Fig. 4 is the assembling schematic diagram of backlight FPC and main FPCA；
Fig. 5 is the front schematic view of backlight module provided in an embodiment of the present invention；
Fig. 6 is the front schematic view of backlight FPC in backlight module provided in an embodiment of the present invention；
Fig. 7 is the reverse side schematic diagram of backlight FPC in backlight module provided in an embodiment of the present invention；
Fig. 8 is the schematic rear view of backlight module provided in an embodiment of the present invention；
Fig. 9 is the connection schematic diagram of backlight FPC and main FPCA provided in an embodiment of the present invention；
Figure 10 is the comparison of typesetting Yu the backlight FPC typesetting provided in an embodiment of the present invention of backlight FPC in the prior art
Schematic diagram；
The arrangement schematic diagram for the dew copper windowing that Figure 11 is backlight FPC provided in an embodiment of the present invention；
Figure 12 is the schematic rear view of iron-clad provided in an embodiment of the present invention；
Figure 13 is the enlarged diagram in II region of iron-clad provided in an embodiment of the present invention；
Figure 14 is the assembling schematic diagram of backlight module provided in an embodiment of the present invention and main FPCA.
Specific embodiment
In order to make the purpose of the present invention, the technical scheme and advantages are more clear, with reference to the accompanying drawing, to the embodiment of the present invention
The backlight module of offer and the specific embodiment of display device are described in detail.It should be appreciated that disclosed below is excellent
Select embodiment only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.And in the absence of conflict, the application
In embodiment and embodiment in feature can be combined with each other.It should be noted that each thickness degree and shape be not anti-in attached drawing
Actual proportions are reflected, purpose is schematically illustrate the content of present invention.And from beginning to end same or similar label indicate it is identical or
Similar element or element with the same or similar functions.
Comprehensive screen mobile phone refers to that true screen accounting can achieve 80% or more, and possesses the mobile phone of ultra-narrow frame design, by
Possess the higher feature of screen accounting in the comprehensive screen mobile phone of use, thus increasingly by the welcome of consumer.Due to shielding comprehensively
Mobile phone is high for the requirement for shielding accounting, and the lower frame (board) of mobile phone is commonly called as " chin " and also has to become narrow.
Referring to Figure 1~Fig. 4, Fig. 1 are the front schematic view of backlight module in the prior art, and Fig. 2 is the amplification in region I
Schematic diagram, Fig. 3 are the schematic rear view of backlight module in the prior art, and the assembling that Fig. 4 is backlight FPC and main FPCA is illustrated
Figure.
Wherein, currently in order to can reduce the height H of lower board, the L-Bar in backlight module in LED component 10 is used
The LED chip 101 that the mode reversely assembled, i.e. L-Bar include is assembled backwards to glue iron 11, with this come reduce before lamp with glue iron
11 distance.As shown in Figure 2, the bottom end of glue iron 11 is provided with through-hole P, when carrying out the assembling of backlight module, needs to carry on the back
The golden finger 1021 of light PFC 102 is welded to pre- on main FPCA 13 after being pierced by and being folded on main FPCA 13 in through-hole P
It stays in weld groove, to complete to assemble.
But there are following Railway Projects for above-mentioned assembling mode:
(1) assembling of existing backlight module is typically all and is assembled by automatic board, but due to glue iron 11
Thickness itself is lower, and the reserved through-hole P in 11 bottom end of glue iron is smaller, and golden finger 1021 is passed through through-hole P for the essence of automatic board
Degree requirement is very high, it is higher the probability that faulty operation damages golden finger 1021 occurs, and golden finger 1021 is easy wearing
It may be contacted with iron when crossing through-hole P and bending, be easy to be scratched, cause the bad phenomenons such as short circuit.In addition, glue iron 11 itself
Thickness is lower, and due to having opened up through-hole P, so that through-hole P position is easier to deform, reliability is not high.
(2) as shown in figure 3, not being available shading glue 12 in through-hole P corresponding position carries out bound edge, so that through-hole P
The case where there may be light leakages is set, and shading glue 12 can also play fixed function to backlight module, but due to through-hole P
Setting cannot be fixed by shading glue 12, to reduce the reliability of backlight module.
(3) existing backlight FPC 102 needs to be fixed by welding on main FPCA 13, that is, needs to carry out welding sequence,
Tin mist caused by welding is all larger for environmental pollution and human injury.Existing backlight FPC 102 is first to be welded to master
On FPCA 13, it then will arrive the main fold of FPCA 13 and be fixed to 11 back side of glue iron, but during main FPCA 13 fold,
It is easy to pull backlight FPC 102, so that L-Bar is deformed, so that backlight module brightness irregularities, it appears that have similar to the light of firefly
Worm it is bright it is dark alternately the case where, reflexed firefly phenomenon is commonly called as, so that the poor display effect of display device.
(4) existing backlight FPC 102 includes golden finger 1021, so that needing to consider in typesetting backlight FPC 102
The position of golden finger 1021, typesetting utilization rate is not high, so that the cost of manufacture of backlight module is higher.Wherein, typesetting refers to
The typesetting that backlight FPC is carried out on the whole substrate for making backlight FPC, in this way, being carried out according to typesetting to whole substrate
After punching, then available multiple backlight FPC may include that one or more is punched obtained back in one backlight module
Light FPC.
For the above-mentioned technical problems in the prior art, the embodiment of the invention provides a kind of backlight module and displays
Device.
With reference to the accompanying drawing, the specific embodiment of backlight module provided in an embodiment of the present invention and display device is carried out
It explains in detail.The thickness of each component and shape do not reflect actual proportions in attached drawing, and purpose is schematically illustrate the content of present invention.
A kind of backlight module provided in an embodiment of the present invention, refers to shown in Fig. 5~Fig. 9, Fig. 5 mentions for the embodiment of the present invention
The front schematic view of the backlight module of confession, Fig. 6 and Fig. 7 are backlight FPC 202 in backlight module provided in an embodiment of the present invention
The schematic diagram of obverse and reverse, Fig. 8 are the schematic rear view of backlight module provided in an embodiment of the present invention, and Fig. 9 is backlight FPC
The connection schematic diagram of 202 and main FPCA 23.
Backlight module provided in an embodiment of the present invention, comprising: LED component 20, glue iron 21 and conductive structure 24.
Wherein, LED component 20 includes LED chip 201 and backlight FPC 202, and LED chip 201 is arranged in backlight FPC 202
First surface A, relative to being provided with dew copper windowing M on the second surface B of first surface A on backlight FPC 202；
The side second surface B of backlight FPC 202 is arranged in glue iron 21, and glue iron 21 is in position corresponding with dew copper windowing M
It is provided with aperture N；
Conductive structure 24, conductive structure 24 is pasted on the dew copper that dew copper windowing M is exposed, and passes through opening on glue iron 21
Hole N is connected with the main FPCA 23 to power for backlight FPC 202.
Specifically, as shown in figure 9, corresponding dew copper windowing O has been reserved on main FPCA 23 for backlight FPC 202, in conduction
After structure 24 passes through the aperture N of glue iron 21, it is attached with the dew copper exposed of the dew copper windowing O on main FPCA 23, thus logical
It crosses conductive structure 24 and realizes power supply and control of the main FPCA 23 to backlight FPC 202.
In the embodiment of the present invention, the side second surface B of backlight FPC 202 is provided with metal copper layer and protective film layer
2021, protective film 2021 is removed in the position for needing to be arranged electrode, then the metal copper layer of the position can be made to expose, in turn
It is connected with conductive structure 24, the dew copper on main FPCA 23 can similarly obtain.
Wherein, in the specific implementation, in embodiments of the present invention, the quantity of LED chip 201 can also more or more
It is few, it is only used for being illustrated in Fig. 5 and Fig. 6, is not used to limit the quantity of LED chip 201, in actual implementation process
In, the quantity of LED chip 201 can design determination according to practical application request, the embodiment of the present invention to this with no restriction.
Firstly, backlight module provided by the embodiment of the present invention, by opening a window the corresponding position M in glue iron 21 with dew copper
It is provided with aperture N, that is to say, that it is to be provided in the biggish plane of 21 area of glue iron by sky N, compares existing bottom end aperture,
The size in hole can be relatively bigger, to reduce the assembling difficulty of automatic board, thereby reduces error rate when assembled,
The yield of backlight FPC is just improved accordingly.
Secondly as glue iron 21 is not necessarily to that it is complete to the bottom end of glue iron 21 that shading glue 22 then can be used in bottom end reserved through hole
Whole edge covering, as shown in figure 8, shading glue 22 can be pasted completely on the back side of glue iron around the bottom end of glue iron 21, to drop
The probability of low drain light further promotes the yield of backlight FPC.
Furthermore since dew copper windowing M can be arranged by the second surface B on backlight FPC 202, it is arranged on glue iron 21
Have and the corresponding position dew copper windowing M be provided with aperture N, and by conductive structure 24 will reveal copper open a window dew copper that M is exposed and
Main FPCA 23 is connected, so that power supply and control of the main FPCA 23 to backlight FPC 202 are realized, in this way, can then cancel existing
Some golden fingers design, thus in typesetting backlight FPC 202 without considering the position of golden finger, relative to existing backlight
The 202 typesetting utilization rate of backlight FPC of FPC 102, the embodiment of the present invention are higher, to reduce the cost of manufacture of backlight module.
Typesetting and backlight provided in an embodiment of the present invention shown in Figure 10, that Figure 10 is existing backlight FPC 102
The contrast schematic diagram of 202 typesetting of FPC.Left side is the typesetting schematic diagram of existing backlight FPC 102, right side in Figure 10 in Figure 10
For 202 typesetting schematic diagram of backlight FPC provided in an embodiment of the present invention, it can be seen that use biggish substrate in the prior art
It is merely able to be laid out 8 backlight FPC102 in a substrate, then only can only obtain 8 backlight FPC after being punched out a substrate
102, and design of the backlight FPC 202 provided by the embodiment of the present invention due to eliminating golden finger, just by smaller substrate
It can be laid out 9 backlight FPC 202 in a substrate, then 9 backlight FPC can be obtained after being punched out to a substrate
202, it can be seen that, the backlight FPC 202 of embodiment of the present invention typesetting utilization rate in production is higher, can more save former material
Material, to reduce the cost of manufacture of backlight module.
In embodiments of the present invention, when it is implemented, conductive structure 24 can be conductive tape or conducting foam.
Specifically, can be affixed directly on the dew copper that dew copper windowing M is exposed when conductive structure 24 is conductive tape,
And after passing through the aperture N on glue iron 21, it is pasted on the position reserved on main FPCA for backlight FPC 202.
Specifically, conducting foam can be pasted onto dew copper by way of gluing when conductive structure 24 is conducting foam
On the dew copper that windowing M is exposed, and after passing through the aperture N on glue iron 21, equally conducting foam is glued by way of gluing
It is attached on the position reserved on main FPCA for backlight FPC 202.Wherein, glue used by gluing can be to be capable of conductive glue.
In the embodiment of the present invention, by conductive tape or conducting foam by backlight FPC 202 and main FPCA23 by gluing
Property connection mode be connected, in this way, in assembling, then without being welded, so as to avoid tin mist caused by welding for
It is injured caused by environmental pollution and human body.Also, due to being not necessarily to welding, then backlight FPC 102 and main FPCA 13 is without leading
It is fixed, so that also backlight FPC 102 would not be pullled, and then generate reflexed firefly during main FPCA 13 is turned down
The phenomenon that.
In embodiments of the present invention, multiple dew copper windowing M can be set on backlight FPC 202, each copper windowing M that reveals is exposed
Dew copper for anode or cathode as backlight FPC 202.
When it is implemented, the quantity of dew copper windowing is identical as the number of electrodes on backlight FPC 202, on backlight FPC 202
Number of electrodes be to be determined by the supply voltage of the quantity of LED chip 201, the operating voltage of LED chip 201 and main FPCA 23
Fixed, in other words, the quantity of dew copper windowing is also by the quantity of LED chip 201, the operating voltage of LED chip 201 and master
What the supply voltage of FPCA 23 determined.In general, the number of electrodes needed on backlight FPC 202 is between 2 to 6.
For example, when the quantity of LED chip 201 is 6, and the operating voltage of each LED chip 201 is 3 volts (V), with
And the supply voltage of main FPCA 23 is when being 18V, then only need all the way supply lines can power for 6 LED chips 201, then
Then need an anode and a cathode, that is to say, that only needing to be arranged two dew copper windowing M both can satisfy requirement.
In another example when the quantity of LED chip 201 is 6, and the operating voltage of each LED chip 201 is 3 volts (V),
And the supply voltage of main FPCA 23 is when being 6V, then at least need 3 road supply lines that can just power for 6 LED chips 201, that
3 anodes and 1 cathode, or 1 anode of setting and 3 cathode can be set, then needing to be arranged 4 dew copper windowing M
Both requirement had been can satisfy, it is of course also possible to 3 anodes and multiple cathode or multiple anodes and 3 cathode be arranged, as long as energy
3 power supply closed circuits are enough formed, correspondingly, the quantity of dew copper windowing M is then the sum of the quantity of anode and cathode.Specifically
It can be configured according to the actual situation, the embodiment of the present invention is without limitation.
In the specific implementation, after the quantity of anode and cathode determines, the quantity of dew copper windowing M is also just able to really therewith
It is fixed, it is shown in Figure 11, when being Different electrodes quantity, the arrangement schematic diagram of the dew copper windowing M of backlight FPC 202.Wherein, just
Extremely corresponding dew copper windowing M is M1, and the windowing of dew copper corresponding to cathode M is M2.
Specifically, then 1 M1 and 1 M2 can be arranged such as the mode of arrangement 1 when required number of electrodes is 2.When
When required number of electrodes is 3, then 2 M1 and 1 M2 can be set such as the mode of arrangement 2.When required number of electrodes is 4
When a, then 3 M1 and M2 can be set such as the mode of arrangement 3.It, then can be such as cloth when required number of electrodes is 5
4 M1 and M2 are arranged in the mode for setting 4.When required number of electrodes is 6, then it can be arranged 4 such as the mode of arrangement 5
M1 and 2 M2.
Certainly, position of the M1 and M2 on backlight PFC 202 can be specifically configured according to installation scenarios, and the present invention is real
Example is applied not limit this.
In the embodiment of the present invention, the shape of dew copper windowing M can be any one in rectangle, triangle, circle and diamond shape
Kind.
In the embodiment of the present invention, the shape of the aperture N on glue iron 21 is also possible in rectangle, triangle, circle and diamond shape
Any one.
In the embodiment of the present invention, conductive structure 24 can be column structure, perpendicular to the centerline direction of dew copper windowing M
Section shape, that is, conductive structure 24 cross section be also possible to it is any one in rectangle, triangle, circle and diamond shape
Kind.
Preferably, the shape of the aperture N on glue iron 21 can and conductive structure 24 identical as the dew copper windowing shape of M
Can also be identical as the dew copper windowing shape of M perpendicular to the shape in the section of the centerline direction of dew copper windowing M, in this way, can be with
It reduces and is pasted onto conductive structure 24 on the dew copper that dew copper windowing M is exposed, and conductive structure 24 is passed through on glue iron 21
Difficulty when aperture N facilitates the automatic assembling of automatic board.
Certainly, the cross section of dew copper windowing M, aperture N and conductive structure 24 can also be other possible shapes, this hair
Bright embodiment is without limitation.
In the embodiment of the present invention, the dew copper to expose to conductive structure 24 and dew copper windowing M provides enough contact surfaces
Product avoids conductive structure 24 from falling off from leakage copper, promotes the reliability that conductive structure 24 is connect with dew copper, the face of dew copper windowing M
Product cannot be too small, it is however generally that, the area of dew copper windowing M can be greater than 0.04 square millimeter of (mm2), but reveal copper windowing M mono-
As at least require setting two, then the area of dew copper windowing M is not greater than total face of second surface B on backlight FPC 202
Long-pending 1/2.
In the embodiment of the present invention, glue iron 21 includes glue frame and iron-clad, wherein it is maximum that aperture N is set to area on iron-clad
In plane, the plane is parallel with the second surface B of backlight FPC 202.As shown in Figures 12 and 13, Figure 12 is that the back side of iron-clad is illustrated
Figure, Figure 13 are the enlarged diagram in II region in Figure 12.Wherein, aperture N is being passed through for convenience of conductive structure 24, and to reduce
The probability scratched when passing through aperture N by iron-clad, the area of aperture N can be greater than the area of dew copper windowing M.
Specifically, the every of aperture N is theed distance between and is not less than on one side with corresponding per in dew copper windowing M while on glue iron
0.2mm。
As shown in figure 13, for revealing copper windowing M and aperture N and be rectangle, in the horizontal edge and dew copper windowing M of aperture N
The distance between ipsilateral horizontal edge is y, and ipsilateral the distance between vertical edge is x in the vertical edge of aperture N and dew copper windowing M, then x with
Y is not less than 0.2mm.Wherein, x and y can be identical value, or different values.
In the embodiment of the present invention, backlight module can also include the components such as polarizer, light guide plate and optical film layer, due to
The components such as these polarizers, light guide plate and optical film layer can with it is identical in the prior art, no longer repeated herein.
Based on the same inventive concept, the embodiment of the invention also provides a kind of display devices, including the embodiment of the present invention to mention
The above-mentioned backlight module supplied, further includes:
Display panel is set to the side that backlight module deviates from glue iron 21；
Main FPCA 23, is set on display panel, and the surface that glue iron 21 deviates from backlight FPC 202 is pasted on after turning down
On；
Wherein, main PFCA23 is provided with the dew copper windowing O on dew copper windowing O, main PFCA23 close to the surface of backlight module
Corresponding with the dew copper windowing position of M on backlight FPC 202, the conductive structure 24 for including by backlight module is by backlight FPC
202 are electrically connected with the dew copper of main PFCA23 corresponding position.
Referring to Figure 14, it is the assembling schematic diagram of backlight module and main FPCA 23, wherein dotted portion is that main FPCA is pasted
The signal contacted after to 21 back side of glue iron with conductive structure 24.
In the embodiment of the present invention, main FPCA 23 can using including golden finger structure, it can with lead in the prior art
The structure of FPCA is identical, thus is no longer repeated herein.
The principle that the display device solves the problems, such as is similar to backlight mould group, therefore the implementation of the display device can be joined
See the implementation of backlight mould group, repeating place, details are not described herein.
In the specific implementation, display panel is liquid crystal display (Liquid Crystal Display, LCD) panel.Specifically
Ground is no longer repeated herein since the specific structure of the display panel can have the same structure as in the prior art.
In the specific implementation, display device provided in an embodiment of the present invention can be with are as follows: mobile phone, tablet computer, television set, aobvious
Show any products or components having a display function such as device, laptop, Digital Frame, navigator.For the display device
Other essential component parts be it will be apparent to an ordinarily skilled person in the art that having, this will not be repeated here,
Also it should not be taken as limiting the invention.
Backlight module provided in an embodiment of the present invention and display device, by glue iron 21 with dew copper open a window M it is corresponding
Position is provided with aperture N, that is to say, that is to be provided in the biggish plane of 21 area of glue iron by sky N, compares existing bottom end
The size of aperture, hole can be relatively bigger, to reduce the assembling difficulty of automatic board, thereby reduces mistake when assembled
Rate also just improves the yield of backlight FPC accordingly.Further, since glue iron 21 is not necessarily to then can be used in bottom end reserved through hole
Shading glue 22 is to the complete bound edge in the bottom end of glue iron 21, as shown in figure 8, shading glue 22 can be completely viscous around the bottom end of glue iron 21
It is attached on the back side of glue iron, to reduce the probability of light leakage, further promotes the yield of backlight FPC.Simultaneously as cancelling existing
Golden finger design, thus in typesetting backlight FPC 202 without considering the position of golden finger, relative to existing backlight FPC
102, the 202 typesetting utilization rate of backlight FPC of the embodiment of the present invention is higher, to reduce the cost of manufacture of backlight module.And
And backlight FPC 202 is connect with main FPCA23 by viscosity by conductive tape or conducting foam in the embodiment of the present invention
Mode be connected, in this way, in assembling, then without being welded, so as to avoid tin mist caused by welding for environment dirt
It is injured caused by dye and human body.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (11)
1. a kind of backlight module characterized by comprising
LED component, including LED chip and backlight FPC, the first surface of the backlight FPC is arranged in the LED chip, described
Dew copper windowing is provided on second surface on backlight FPC relative to the first surface；
Glue iron, is arranged in the second surface side of the backlight FPC, and the glue iron is set in position corresponding with the dew copper windowing
It is equipped with aperture；
Conductive structure, the conductive structure is pasted on the dew copper that the dew copper windowing exposes, and is passed through on the glue iron
Aperture is connected with the main FPCA to power for the backlight FPC.
2. backlight module as described in claim 1, which is characterized in that the shape of the dew copper windowing is rectangle, triangle, circle
Any one in shape and diamond shape.
3. backlight module as claimed in claim 2, which is characterized in that the shape of aperture and the dew copper open a window on the glue iron
Shape it is identical.
4. backlight module as claimed in claim 2, which is characterized in that the conductive structure is perpendicular in dew copper windowing
The shape in the section in heart line direction is identical as the shape of the dew copper windowing.
5. backlight module as described in claim 1, which is characterized in that the area of the dew copper windowing is greater than 0.04mm2, and not
Greater than 1/2 of second surface area on the backlight FPC.
6. backlight module as claimed in claim 5, which is characterized in that the area of aperture is greater than the dew copper and opens on the glue iron
The area of window.
7. backlight module as claimed in claim 6, which is characterized in that every one side of aperture is opened with the dew copper on the glue iron
The distance between corresponding every one side is not less than 0.2mm in window.
8. backlight module as described in claim 1, which is characterized in that the conductive structure is conductive tape or conductive bubble
Cotton.
9. backlight module as described in claim 1, which is characterized in that the backlight FPC includes multiple dew copper windowings；
Wherein, the anode or cathode that the dew copper that each dew copper windowing exposes is the backlight FPC.
10. backlight module as claimed in claim 9, which is characterized in that the quantity of the dew copper windowing is by the LED chip
Quantity, the operating voltage of LED chip and the main FPCA supply voltage determine.
11. a kind of display device, which is characterized in that including the described in any item backlight modules of such as claim 1~10, also wrap
It includes:
Display panel is set to the side that the backlight module deviates from glue iron；
Main FPCA is set on the display panel, and the glue iron is pasted on after turning down on the surface of backlight FPC；
Wherein, the main PFCA is provided with dew copper windowing, the dew copper windowing and the back close to the surface of the backlight module
The position for revealing copper windowing on light FPC is corresponding, and the conductive structure for including by the backlight module is by the backlight FPC and institute
The dew copper for stating main PFCA corresponding position is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811573602.0A CN109459889A (en) | 2018-12-21 | 2018-12-21 | A kind of backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811573602.0A CN109459889A (en) | 2018-12-21 | 2018-12-21 | A kind of backlight module and display device |
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| Publication Number | Publication Date |
|---|---|
| CN109459889A true CN109459889A (en) | 2019-03-12 |
Family
ID=65614246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201811573602.0A Pending CN109459889A (en) | 2018-12-21 | 2018-12-21 | A kind of backlight module and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110632793A (en) * | 2019-09-06 | 2019-12-31 | 信利光电股份有限公司 | Backlight module |
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Application publication date: 20190312 |