CN109828412A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
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- CN109828412A CN109828412A CN201910149549.XA CN201910149549A CN109828412A CN 109828412 A CN109828412 A CN 109828412A CN 201910149549 A CN201910149549 A CN 201910149549A CN 109828412 A CN109828412 A CN 109828412A
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- backlight module
- framework
- circuit board
- cabling
- flexible circuit
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Abstract
The invention discloses a kind of backlight module and display devices, belong to field of display technology, comprising: framework, lamp bar, conductive connection part, at least one optical diaphragm, framework form accommodating space for accommodating lamp bar, conductive connection part and at least one optical diaphragm；Lamp bar includes flexible circuit board and a plurality of light-emitting elements that are connected electrically in flexible circuit board；Flexible circuit board includes protective film, ground connection cabling；Protective film includes at least one hollow-out parts, and hollow-out parts expose at least partly ground connection cabling；Cabling is grounded to be electrically connected by conductive connection part and framework.Framework by conductive connection part obtain ground connection cabling ground potential, can rapid release electrostatic, protect structure the wounding from electrostatic in backlight module.And connection structure is simple, reliability is higher.Framework can also protect conductive connection part.When backlight module provided by the invention is applied in display device, touch-control failure phenomenon caused by due to framework current potential is unstable can also be prevented.
Description
Technical field
The present invention relates to field of display technology, more particularly, to a kind of backlight module and display device.
Background technique
In a kind of display device that the prior art provides, light source is provided using backlight module.
Referring to FIG. 1, Fig. 1 is a kind of structural schematic diagram for display device that the prior art provides.What the prior art provided
The backlight module 02 that a kind of display device includes: display panel 01, is oppositely arranged with display panel, backlight module includes iron frame
021, iron frame 021 formed accommodating space in be provided with optical diaphragm 022.Binding has FPC03, FPC03 to use on display panel 01
In to display panel transmission telecommunications number.There is ground line, ground line receives earth signal on FPC03.
It is provided with touch control electrode in display panel 01, to realize touch function.For the touch control electrode of self-capacitance, need
021 earthing potential of iron frame, to obtain optimal touch-control effect.In the display device that the prior art provides, in order to be grounded iron frame
Current potential, used technical solution are as follows:
The first end and display panel of FPC03 is bound, and second end is bent to the side that backlight module 02 deviates from display panel
And it is bonded with iron frame 021, so that ground line and iron frame 021 are electrically connected, iron frame 021 receives the earth signal that ground line provides.
However, being limited to the mechanism design of display device, the fitting of FPC03 and iron frame 021 is not secured enough.And FPC is curved
There is bounce after folding, be more easier so that FPC03 is easy to remove from iron frame 021.It is provided when 021 moment of iron frame loses ground line
Earth signal when, will cause display panel touch-control failure, reduce the reliability of display device.
Summary of the invention
In view of this, the present invention provides a kind of backlight module and display device, to solve the problems, such as that the prior art proposes.
On the one hand, the present invention provides a kind of backlight modules, comprising: framework, lamp bar, conductive connection part, at least one light
Diaphragm is learned, framework forms accommodating space for accommodating lamp bar, conductive connection part and at least one optical diaphragm；Lamp bar includes flexibility
Wiring board and a plurality of light-emitting elements being connected electrically in flexible circuit board；Flexible circuit board includes protective film, ground connection cabling；
Protective film includes at least one hollow-out parts, and hollow-out parts expose at least partly ground connection cabling；Ground connection cabling passes through conductive connection part
It is electrically connected with framework.
On the other hand, the present invention provides a kind of display devices, including backlight module provided by the invention, and and backlight
The display panel that mould group is oppositely arranged
Compared with prior art, backlight module provided by the invention and display device at least realize following beneficial effect
Fruit:
Backlight module includes framework and lamp bar, and lamp bar includes flexible circuit board and is connected electrically in flexible circuit board
A plurality of light-emitting elements.Wherein, in the protective film of flexible circuit board be provided at least one hollow-out parts, hollow-out parts can expose to
Small part is grounded cabling.Conductive connection part is provided in the accommodating space that framework is formed, conductive connection part is filled in hollow-out parts, connects
Ground cabling is electrically connected by conductive connection part and framework.On the one hand, framework obtains the ground electricity of ground connection cabling by conductive connection part
Position, can rapid release electrostatic, protect structure the wounding from electrostatic in backlight module.On the other hand, flexible circuit board
In ground connection cabling by conductive connection part directly and framework electrical connection, connection structure simply, reliability it is higher.And conduction is even
Socket part is arranged in the accommodating space of framework formation, and framework can protect conductive connection part, prevents external impacts from causing conductive connect
The damage or removing of socket part, further promote reliability.When backlight module provided in this embodiment is applied in display device
When, it can also be ensured that the steady operation of the self-capacitance touch control electrode in display panel prevents from making because framework current potential is unstable
At touch-control fail the phenomenon that.
Certainly, implementing any of the products of the present invention specific needs while need not reach all the above technical effect.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is a kind of structural schematic diagram for display device that the prior art provides；
Fig. 2 is a kind of the schematic diagram of the section structure of backlight module provided in an embodiment of the present invention；
Fig. 3 is the planar structure schematic diagram in the face A of the lamp bar in backlight module shown in Fig. 2；
Fig. 4 is the planar structure schematic diagram in the face B of the lamp bar in backlight module shown in Fig. 2；
Fig. 5 is the schematic diagram of the section structure of another backlight module provided in an embodiment of the present invention；
Fig. 6 is the planar structure schematic diagram of another lamp bar provided in an embodiment of the present invention；
Fig. 7 is a kind of the schematic diagram of the section structure of display device provided in an embodiment of the present invention；
Fig. 8 is the planar structure schematic diagram of another display device provided in an embodiment of the present invention；
Fig. 9 is the schematic diagram of the section structure of another display device provided in an embodiment of the present invention.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Fig. 2, Fig. 3 and Fig. 4 are please referred to, Fig. 2 is a kind of cross-section structure signal of backlight module provided in an embodiment of the present invention
Figure；Fig. 3 is the planar structure schematic diagram in the face A of the lamp bar in backlight module shown in Fig. 2；Fig. 4 is backlight module shown in Fig. 2
In lamp bar the face B planar structure schematic diagram；
Present embodiments provide a kind of backlight module, comprising:
Framework 10, lamp bar 20, conductive connection part 30, at least one optical diaphragm 40, framework 10 form accommodating space and are used for
Accommodate lamp bar 20, conductive connection part 30 and at least one optical diaphragm 40；
Lamp bar 20 includes flexible circuit board 21 and a plurality of light-emitting elements 22 being connected electrically in flexible circuit board 21；
Flexible circuit board 21 includes protective film 211, ground connection cabling 212；Protective film 211 includes at least one hollow-out parts 213,
Hollow-out parts 213 expose at least partly ground connection cabling 212；
Cabling 212 is grounded to be electrically connected by conductive connection part 30 and framework 10.
Backlight module provided in this embodiment includes framework 10, and framework 10 is made using conductive material, such as can be to lead
Electrically good metal material.Optionally, the material of framework 10 can be iron, copper or alloy, and the present embodiment does not make this to have
Body limitation.
Framework 10 forms accommodating space, and the techniques such as punching press can be used for example and be made.Lamp bar 20 and at least one
Optical diaphragm 40 is arranged in accommodating space.It is understood that since lamp bar 20 needs to obtain from the external of backlight module
Electric signal, thus lamp bar 20 be not it is completely set up in accommodating space, lamp bar 20 may include main part 20A and extension
20B, main part 20A are arranged in accommodating space, and extension 20B can be extended to outside accommodating space to receive electric signal.
Lamp bar 20 includes flexible circuit board 21 and a plurality of light-emitting elements 22 being connected electrically in flexible circuit board 21.It is soft
Property wiring board 21 include protective film 211, ground connection cabling 212, protective film 211 is used for protective grounding cabling 212, to prevent air rotten
Erosion ground connection cabling 212, and impurity can be stopped.The material of protective film 211 can be polyimides or mylar material system
At so that flexible circuit board 21 has preferable flexibility and insulating properties.It is grounded cabling 212 and receives earth signal, can incite somebody to action
Electro-static Driven Comb prevents damage by static electricity light-emitting component 22.Light-emitting component 22 can shine after receiving suitable voltage or electric current, shine
Element 22 is typically considered to point light source, and the light issued can form more uniform area source under the action of optical diaphragm.
The quantity of optical diaphragm 40 can be one, or multiple, the present embodiment is not specifically limited this.It is optional
, optical diaphragm 40 can be any one in light guide plate, reflector plate, prismatic lens, diffusion sheet or a variety of combinations, optics
Diaphragm 40 or other kinds of optical diaphragm, the present embodiment are not specifically limited this.
In backlight module provided in this embodiment, at least one hollow-out parts 213, hollow-out parts are provided in protective film 211
213 can expose at least partly cabling of ground connection cabling 212, and the shapes of hollow-out parts 213 can for round, rectangle or not
Regular shape, the present embodiment are not specifically limited this.
It is understood that in order to further enhance the reliability that flexible circuit board 21 and framework 10 are electrically connected, hollow-out parts
213 quantity can be two or more, correspondingly, the quantity of conductive connection part 30 can be two or more,
It is electrically connected to make to be grounded cabling 212 by two or more conductive connection part 30 and framework 10, further promotes connection
Reliability.What hollow-out parts 213 also can be set larger exposes ground connection cabling 212, corresponding conductive connection part with more
30 can increase with the contact area for being grounded cabling 212, to further promote the reliability of connection.
It should be noted that the technical solution in order to clearly illustrate the present embodiment, in Fig. 4, ground connection cabling 212 is illustrated
Whole cablings.It is understood that in actual flexible circuit board 21, the covering ground connection cabling of protective film 211 is grounded cabling
212 only have the position of hollow out to be exposed in protective film 211.
In backlight module provided in this embodiment, in order to provide ground potential to framework 10, it is provided with extremely in protective film 211
Few hollow-out parts 213, to expose at least partly cabling of ground connection cabling 212, hollow-out parts 213 should be located at what framework 10 was formed
In accommodating space, and conductive connection part 30, one end of conductive connection part 30 are provided in the accommodating space that framework 10 is formed
It is electrically connected by hollow-out parts 213 and ground connection cabling 212, and the other end of conductive connection part 30 and framework 10 are electrically connected, thus
The ground potential of ground connection cabling 212 is transmitted to framework 10 by conductive connection part 30, and framework 10 is allow to obtain ground potential.Work as backlight
Module internal or outside there are when electrostatic, framework 10 can rapid release electrostatic, protect structure in backlight module from
Electrostatic wounds.
Conductive connection part 30 is made using electrically conductive material, such as conducting resinl or conducting foam etc., can also be with
For metal material with good conductivity, the present embodiment is not specifically limited this.Wherein, conducting resinl can be to be doped with conductive particle
The glue material of son；Conducting foam refers to wraps up conductive fabric on flame-retardant sponge, after a series of processing, makes it have good
Surface conductivity can be easy to be fixed between flexible circuit board and framework with adhesive tape.
Ground connection cabling 212 in flexible circuit board 21 is directly electrically connected with framework 10 by conductive connection part 30, connection knot
Structure is simple, reliability is higher, compared with the existing technology, can cause to avoid the bounce of flexible circuit board and the removing of framework 10
Phenomenon；And conductive connection part 30 is arranged in the accommodating space of the formation of framework 10, and framework 10 can protect conductive connection part 30,
It prevents external impacts from causing the damage or removing of conductive connection part 30, further promotes reliability.
It should be noted that illustrating the face A of lamp bar in Fig. 3, the face A is the one side for being provided with light-emitting component 22；In Fig. 4
The face B of lamp bar is illustrated, the face B and the face A are oppositely arranged, and the face B is not provided with light-emitting component 22.
Backlight module provided in this embodiment, at least have it is following the utility model has the advantages that
Backlight module includes framework 10 and lamp bar 20, and lamp bar 20 is including flexible circuit board 21 and is connected electrically in flexible wires
A plurality of light-emitting elements 22 on road plate 21.Wherein, at least one hollow-out parts is provided in the protective film 211 of flexible circuit board 21
213, hollow-out parts 213 can expose at least partly ground connection cabling 212.Conductive connect is provided in the accommodating space that framework 10 is formed
Socket part 30, conductive connection part 30 are filled in hollow-out parts 213, and ground connection cabling 212 is electrically connected by conductive connection part 30 and framework 10.
On the one hand, framework 10 by conductive connection part 30 obtain ground connection cabling 212 ground potential, can rapid release electrostatic, protection
Structure wounding from electrostatic in backlight module.On the other hand, the ground connection cabling 212 in flexible circuit board 21 is connected by conductive
Socket part 30 is directly electrically connected with framework 10, and connection structure is simple, reliability is higher.And conductive connection part 30 is arranged in framework 10
In the accommodating space of formation, framework 10 can protect conductive connection part 30, prevent external impacts from causing the damage of conductive connection part 30
Bad or removing, further promotes reliability.It, can be with when backlight module provided in this embodiment is applied in display device
The steady operation for guaranteeing the self-capacitance touch control electrode in display panel, prevents touch-control caused by due to 10 current potential of framework is unstable
The phenomenon that failure, occurs.
In some alternative embodiments, referring to FIG. 5, Fig. 5 is another backlight module provided in an embodiment of the present invention
The schematic diagram of the section structure；
In the present embodiment, framework 10 includes metal frame 11, and metal frame 11 includes bottom plate 111 and side wall 112, is grounded cabling
212 are electrically connected by conductive connection part 30 and bottom plate 111.
In backlight module provided in this embodiment, framework 10 includes the metal frame 11 being made by metal material, metal
Frame 11 has good electric conductivity, and metal material has preferable ductility, non-breakable under the impact of external force, can be with
Protect the structure in accommodating space.
Metal frame 11 includes bottom plate 111 and side wall 112, and optionally, bottom plate 111 is the good writing board shape of planarization, can
Choosing, bottom plate 111 can be rectangle.Side wall 112 and bottom plate 111 are enclosed accommodating space.
In backlight module provided in this embodiment, the main part of flexible circuit board 21 is usually parallel or is roughly parallel to bottom
Plate 111, and the main part of flexible circuit board 21 is arranged in the accommodating space of the formation of framework 10.Conductive connection part 30 is set,
So that the ground connection cabling 212 and bottom plate 111 in flexible circuit board 21 are electrically connected, the length of conductive connection part 30 is advantageously reduced,
The reliability for improving flexible circuit board 21 and the electrical connection of bottom plate 111, to improve the quality of backlight module.
Optionally, with continued reference to FIG. 5, framework 10 further includes glue frame 12, glue frame 12 is mutually fitted into side wall 112.
In backlight module provided in this embodiment, framework 10 further includes glue frame 12, and glue frame 12 and metal frame 11 can be distinguished
It is fitted together after completing.Glue frame 12 is mutually fitted into side wall 112, and glue frame 12 is located at the sky that bottom plate 111 and side wall 112 are formed
Between it is internal.Optionally, glue frame 12 is around side wall 112 around a circle.
Glue frame 12 makes usually using resin material, has preferable elasticity, in the transport and use process of backlight module
In, glue frame 12 can provide preferable buffer function for structures such as lamp bar, optical diaphragms in accommodating space, prevent lamp bar, light
It learns the structures such as diaphragm and directly hits metal frame 11 and damaged.
In some alternative embodiments, referring to FIG. 6, Fig. 6 is the flat of another lamp bar provided in an embodiment of the present invention
Face structural schematic diagram；
In the present embodiment, a plurality of light-emitting elements 22 and ground connection cabling 212 are electrically connected.It removes to be provided in light-emitting component 22 and be used for
Luminous voltage end is additionally provided with ground terminal, and ground terminal and ground connection cabling 212 are electrically connected, and can prevent damage by static electricity from shining first
Part 22, to further promote the reliability of backlight module.
Optionally, in the backlight module that any of the above-described embodiment of the present invention provides, light-emitting component 22 includes light emitting diode.
Light emitting diode (Light Emitting Diode, abbreviation LED) is one kind of semiconductor diode, electric energy can be converted to
Luminous energy.Light emitting diode is made of a PN junction, it may have unilateral conduction.When to light emitting diode add forward voltage
Afterwards, the hole in the area N is injected into from the area P and the electronics in the area P is injected by the area N, the electricity with the area N respectively in a few micrometers near the PN junction
The hole-recombination of son and the area P, generates the fluorescence of spontaneous radiation.Optionally, light emitting diode 22 can with blue light-emitting, can also whiten
The coloured light of light or other colors, the actual demand with specific reference to backlight module are configured, and the present embodiment is not made this specifically
Limitation.
The embodiment of the invention also provides a kind of display device, the backlight mould provided including any of the above-described embodiment of the present invention
Group and the display panel being oppositely arranged with backlight module.
Referring to FIG. 7, Fig. 7 is a kind of the schematic diagram of the section structure of display device provided in an embodiment of the present invention；This implementation
The display device that example provides, including invent backlight module 100 that any of the above-described embodiment provides and with 100 phase of backlight module
To the display panel 200 of setting.
It should be noted that backlight module 100 is only by taking backlight module shown in Fig. 2 as an example in display device shown in Fig. 7
It is illustrated.
Optionally, display panel 200 is liquid crystal display panel or the other kinds of display surface for needing backlight module
Plate, the present embodiment are not specifically limited this.
It is understood that display device provided in an embodiment of the present invention, can be mobile phone, computer, TV, car-mounted display
Other display devices having a display function such as device, the present invention are not specifically limited this.It is provided in an embodiment of the present invention aobvious
Showing device, with backlight module provided in an embodiment of the present invention beneficial effect, specifically can with reference to the various embodiments described above for
Backlight module illustrates, and details are not described herein for the present embodiment.
In some alternative embodiments, Fig. 7 and Fig. 8 are please referred to, Fig. 8 is another display provided in an embodiment of the present invention
The planar structure schematic diagram of device；
In the present embodiment, display panel includes touch control layer TP, and touch control layer TP includes multiple self-capacitance touch control electrode TP0.
Touch control layer TP can also include that touch-control line TP1, touch control electrode TP0 and touch-control line TP1 are electrically connected.
Display device provided in this embodiment has touch function, specifically, being provided with touch control layer TP in display panel, touches
Control layer TP can sense the location information of touch-control.Wherein, touch control layer TP includes multiple self-capacitance touch control electrode TP0, below it is right
It is briefly described in the working principle of self-capacitance touch control electrode TP0:
One touch control electrode TP0 is electrically connected at least one touch-control line TP1 and insulate with remaining touch-control line TP1, touch-control
Line TP1 emits signal to touch control electrode TP0 input touch-control, and usual touch-control transmitting signal is pulse signal, and touch control electrode TP0 is received
Touch-control emits the coupled capacitor formed after signal with the earth, basic capacitor of the coupled capacitor as detection touch control operation.Work as touching
When control electrode TP0 detects touch control operation of the object for display device, the coupled capacitor that touch control electrode TP0 and the earth are formed is sent out
The variation of changing, the capacitor causes the variation of the quantity of electric charge of touch control electrode TP0 institute band, and the variation of the quantity of electric charge causes the change of electric current
Changing, touch-control line TP1 exports the variation of the electric current, the information of touch control operation can be determined by the variation that the electric current is analyzed in calculating,
The operating mode of this kind of touch control electrode is known as self-capacitance.
It should be noted that being said so that the shape of touch control electrode TP0 is rectangle, quantity is 9 as an example in the present embodiment
It is bright.It is understood that the shape of touch control electrode TP0, size, quantity, arrangement mode need the practical need according to display panel
It asks and is configured, the present embodiment is not specifically limited this.It should be noted that the technology in order to clearly illustrate the present embodiment
The structure of backlight module is omitted in Fig. 8 for scheme.
In display device provided in this embodiment, self-capacitance touch control electrode TP0 is provided in display panel, to make
Display device realizes touch function.In backlight module, ground connection cabling 212 is electrically connected by conductive connection part 30 and framework 10,
Framework 10 obtains ground potential, and the reliability for being grounded the connection of cabling 212 and framework 10 is higher, it is ensured that self-capacitance touching
The phenomenon that controlling the stable work of electrode TP0, preventing touch-control caused by due to 10 current potential of framework is unstable from failing.
In some alternative embodiments, Fig. 7 and Fig. 8 are please referred to, in the present embodiment, display panel includes binding area BD,
Binding area BD is provided with main flexible circuit board 21, and main flexible circuit board 21 includes earth signal port GND, the ground connection cabling of lamp bar 20
212 and earth signal port GND electrical connection.
In display device provided in this embodiment, it is provided with main flexible circuit board 21, main flexible circuit board 21 can pass through
Conducting resinl is pasted into binding area BD.Main flexible circuit board 21 is usually that display panel provides the use such as display signal, touching signals
In the electric signal for realizing display and touch-control.Main flexible circuit board 21, will usually with the processor in display device, power electric connection
Processor, power supply electric signal transmission into display panel.
Main flexible circuit board 21 includes earth signal port GND, and earth signal port GND receives the ground potential letter that processor provides
Number, the ground connection cabling 212 of lamp bar 20 and earth signal port GND are electrically connected, can be provided for the ground connection cabling 212 in lamp bar 20
Ground potential signal.In addition to this, remaining signal lead also can be electrically connected to main flexible circuit board 21 in lamp bar 20, thus nothing
It need to be individually for lamp bar 20 and processor is set to provide electric signal, simplify the setting of display device.
Optionally, lamp bar 20 can by welding with main flexible circuit board 21 be electrically connected, the present embodiment to this not
Make concrete restriction.
In some alternative embodiments, referring to FIG. 9, Fig. 9 is another display device provided in an embodiment of the present invention
The schematic diagram of the section structure；
Display device provided in this embodiment further includes center 300, and center 300 is located at backlight module 100 away from display surface
The side of plate 200.
In display device provided in this embodiment, center 300 is for carrying or fixing backlight module 100 and display panel
200, center 300 is usually provided with the structures such as battery away from the side of backlight module 100, can be with stationary processors on center 300
Equal electronic components.
Display device provided in this embodiment is in transport and use process, since framework 10 has stable ground potential,
When the framework 10 of backlight module 100 and center 300 contact, display device touch-control will not be caused to fail, improve display dress
The reliability and user experience set.
Through the foregoing embodiment it is found that backlight module provided by the invention and display device, at least realizing following has
Beneficial effect:
Backlight module includes framework and lamp bar, and lamp bar includes flexible circuit board and is connected electrically in flexible circuit board
A plurality of light-emitting elements.Wherein, in the protective film of flexible circuit board be provided at least one hollow-out parts, hollow-out parts can expose to
Small part is grounded cabling.Conductive connection part is provided in the accommodating space that framework is formed, conductive connection part is filled in hollow-out parts, connects
Ground cabling is electrically connected by conductive connection part and framework.On the one hand, framework obtains the ground electricity of ground connection cabling by conductive connection part
Position, can rapid release electrostatic, protect structure the wounding from electrostatic in backlight module.On the other hand, flexible circuit board
In ground connection cabling by conductive connection part directly and framework electrical connection, connection structure simply, reliability it is higher.And conduction is even
Socket part is arranged in the accommodating space of framework formation, and framework can protect conductive connection part, prevents external impacts from causing conductive connect
The damage or removing of socket part, further promote reliability.When backlight module provided in this embodiment is applied in display device
When, it can also be ensured that the steady operation of the self-capacitance touch control electrode in display panel prevents from making because framework current potential is unstable
At touch-control fail the phenomenon that.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (11)
1. a kind of backlight module characterized by comprising
Framework, lamp bar, conductive connection part, at least one optical diaphragm, the framework form accommodating space for accommodating the lamp
Item, the conductive connection part and at least one described optical diaphragm；
The lamp bar includes a plurality of light-emitting elements of flexible circuit board and electrical connection on the flexible circuit board；
The flexible circuit board includes protective film, ground connection cabling；The protective film includes at least one hollow-out parts, the hollow-out parts
Expose at least partly described ground connection cabling；
The ground connection cabling is electrically connected by the conductive connection part and the framework.
2. backlight module according to claim 1, which is characterized in that
The framework includes metal frame, and the metal frame includes bottom plate and side wall, and the ground connection cabling passes through the conductive connection
Portion and bottom plate electrical connection.
3. backlight module according to claim 2, which is characterized in that
The framework further includes glue frame, and the glue frame is mutually fitted into the side wall.
4. backlight module according to claim 1, which is characterized in that
The material of the conductive connection part is conducting resinl or conducting foam.
5. backlight module according to claim 1, which is characterized in that
The multiple light-emitting component and ground connection cabling electrical connection.
6. backlight module according to claim 1, which is characterized in that
The light-emitting component includes light emitting diode.
7. a kind of display device, which is characterized in that including backlight module according to claim 1-6, Yi Jiyu
The display panel that the backlight module is oppositely arranged.
8. display device according to claim 7, which is characterized in that
The display panel includes touch control layer, and the touch control layer includes multiple self-capacitance touch control electrodes.
9. display device according to claim 7, which is characterized in that
The display panel includes binding area, and the binding area is provided with main flexible circuit board, and the main flexible circuit board includes
Earth signal port, the ground connection cabling of the lamp bar and earth signal port electrical connection.
10. display device according to claim 7, which is characterized in that
The display panel is liquid crystal display panel.
11. display device according to claim 7, which is characterized in that
It further include center, the center is located at the side that the backlight module deviates from the display panel.
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|---|---|---|---|
| CN201910149549.XA CN109828412A (en) | 2019-02-28 | 2019-02-28 | Backlight module and display device |
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| CN201910149549.XA CN109828412A (en) | 2019-02-28 | 2019-02-28 | Backlight module and display device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110928042A (en) * | 2019-11-25 | 2020-03-27 | 厦门天马微电子有限公司 | Display module, display device and impedance detection method of display module |
| CN111487814A (en) * | 2020-05-26 | 2020-08-04 | 武汉天马微电子有限公司 | Backlight module and display device |
| CN112349207A (en) * | 2020-11-10 | 2021-02-09 | 京东方科技集团股份有限公司 | Backlight module and display panel |
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| CN205679886U (en) * | 2016-05-03 | 2016-11-09 | 上海中航光电子有限公司 | A kind of backlight module and display device thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110928042A (en) * | 2019-11-25 | 2020-03-27 | 厦门天马微电子有限公司 | Display module, display device and impedance detection method of display module |
| CN110928042B (en) * | 2019-11-25 | 2022-05-03 | 厦门天马微电子有限公司 | Display module, display device and impedance detection method of display module |
| CN111487814A (en) * | 2020-05-26 | 2020-08-04 | 武汉天马微电子有限公司 | Backlight module and display device |
| CN112349207A (en) * | 2020-11-10 | 2021-02-09 | 京东方科技集团股份有限公司 | Backlight module and display panel |
| CN112349207B (en) * | 2020-11-10 | 2023-02-21 | 京东方科技集团股份有限公司 | Backlight module and display panel |
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Application publication date: 20190531 |