CN106773295A - A kind of backlight module - Google Patents
A kind of backlight module Download PDFInfo
- Publication number
- CN106773295A CN106773295A CN201611190049.3A CN201611190049A CN106773295A CN 106773295 A CN106773295 A CN 106773295A CN 201611190049 A CN201611190049 A CN 201611190049A CN 106773295 A CN106773295 A CN 106773295A
- Authority
- CN
- China
- Prior art keywords
- backlight module
- emitting diode
- light emitting
- backboard
- tie layers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133325—Assembling processes
Abstract
The present invention discloses a kind of backlight module, and it includes：Backboard；Reflector plate, it is arranged on backboard, and reflector plate is provided with light guide plate, and the side of reflector plate is provided with conductive tie layers；Light emitting diode, it connects with the top of conductive tie layers, and the positive pole of light emitting diode and negative pole can be drawn out to conductive tie layers the bottom of backboard.Backlight module disclosed by the invention is directly by the direct piece of light emitting diode on backboard, lamp source flexible PCB is not needed, simplify the structure of backlight module, simultaneously, light emitting diode is directly contacted with backboard, the radiating effect of increased backlight module, backlight module i.e. of the invention has good radiating effect, when backlight module is assembled, because back light module unit structure is simple, i.e. due to without lamp source flexible circuit board member, during assembling fixture is positioned without lamp source flexible PCB, lamp source flexible PCB can be omitted and assemble this flow, can realize assembling simple effect.
Description
Technical field
The present invention relates to a kind of liquid crystal display device technical field, more particularly to a kind of backlight module.
Background technology
At present, liquid crystal display device has been widely used in various electronic products as the display unit of electronic equipment
In, and backlight module is then an important component in liquid crystal display device.
Generally, (large scale is different from) as shown in figure 1, a kind of small-medium size backlight module, including：It is glue frame 1, anti-
Penetrate piece 2, light guide plate 3, blooming piece 4, lamp source flexible PCB 5 (LB FPC), LED 6, main flexible PCB 7 (main FPC) and
Display screen 8 (Cell), the lamp source flexible PCB 5 and LED6 are fixed on light guide plate 3 and glue frame by the shading rubber belt 9
On 1, blooming piece 4 is fixed in glue frame 1 by shading two-sided tape 10, and reflector plate 2 is by hollow double faced adhesive tape in glue frame 1
Bottom surface；Display screen 8 is affixed in glue frame 1 using mouth word glue 10；As shown in figure 3, having LB pads 71, component region on main FPC7
72 and hookup 73 etc.；As shown in figure 4, having LED51 and pad pin 52 on LB FPC 5；Assemble during whole machine main FPC from backlight
LED lateral bendings folding and sticking on reflector plate (as in Fig. 2 circle indicate region shown in).But with highlighted twin crystal LED and the highlighted back of the body
The appearance of light module, the backlight module of this structure is in the middle of module because of LED, and with external component without directly contact, its nothing
Method meets the cooling requirements of high-capacity LED, so as to cause backlight module temperature higher.
To solve the above problems, it is necessary to provide a kind of new backlight module.
The content of the invention
Backlight module of the invention is directly by the direct piece of light emitting diode (LED) on backboard, it is not necessary to which lamp source is flexible
Circuit board, simplifies the structure of backlight module, meanwhile, LED is directly contacted with backboard, the radiating effect of increased backlight module, i.e.,
Backlight module of the invention has good radiating effect, when backlight module is assembled, because back light module unit structure is simple, i.e., by
In without lamp source flexible PCB (LB FPC) part, fixture is positioned without LB FPC during assembling, LB FPC can be omitted and assemble this
Flow, i.e., can realize assembling simple effect.
To achieve the above object, the present invention provides a kind of backlight module, wherein, the backlight module includes：
Backboard；
Reflector plate, it is arranged on the backboard, and the reflector plate is provided with light guide plate, and the side of the reflector plate is provided with
Conductive tie layers；
Light emitting diode, it connects with the top of the conductive tie layers, and the conductive tie layers can be by described luminous two
The positive pole and negative pole of pole pipe are drawn out to the bottom of the backboard.
Backlight module as described above, wherein, the conductive tie layers include the first insulating barrier, metal successively from top to bottom
Layer and the second insulating barrier, the metal level connect with the light emitting diode.
Backlight module as described above, wherein, first insulating barrier and second insulating barrier are by poly terephthalic acid
Glycol ester is made.
Backlight module as described above, wherein, the metal level is made up of copper or silver metal.
Backlight module as described above, wherein, the backboard includes the vertical portion of bottom and the two bottom sides, described to lead
Electric connection layer bypasses the vertical portion and the positive pole and negative pole of the light emitting diode is drawn out into the bottom of the bottom or described
The positive pole and negative pole of the light emitting diode are drawn out to conductive tie layers the bottom of the bottom through the bottom.
Backlight module as described above, wherein, the light emitting diode is provided with glue frame away from the side of the light guide plate.
Backlight module as described above, wherein, the light guide plate is provided with blooming piece, and the blooming piece top is provided with
Display screen.
Backlight module as described above, wherein, the display screen is provided with flexible PCB, the flexible PCB with
The module near the light emitting diode is relative, and the flexible PCB includes easy folding part, and the easy folding part can bend
Positive pole and the downside of negative pole to the light emitting diode of the bottom for being located at the backboard.
Backlight module as described above, wherein, the easy folding part is bent to the positive pole of the light emitting diode and bears
During the downside of pole, the leg of the flexible PCB is corresponding with the leg that the positive pole and negative pole of the light emitting diode are drawn.
Backlight module as described above, wherein, the display screen is sticked in the glue frame by rubberizing.
Compared with existing backlight module, back light module unit structure of the invention is simple, and it is directly by LED pieces in backboard
On, it is not necessary to lamp source flexible PCB, to realize simplifying the structure of backlight module, meanwhile, LED is directly contacted with backboard, is increased
Backlight module radiating effect, i.e., backlight module of the invention has good radiating effect, so as to meet high-capacity LED
Cooling requirements；In addition, when backlight module is assembled, because back light module unit structure is simple, i.e., due to without lamp source flexible PCB (LB
FPC) part, fixture is positioned during assembling without LB FPC, can be omitted LB FPC and be assembled this flow, i.e., can realize that assembling is simple
Effect.
Brief description of the drawings
Accompanying drawing described here is only used for task of explanation, and is not intended to by any way limit model disclosed by the invention
Enclose.In addition, shape and proportional sizes of each part in figure etc. are only schematical, the understanding of the present invention is used to help, and
It is not the shape and proportional sizes for specifically limiting each part of the invention.Those skilled in the art under the teachings of the present invention, can
To select various possible shapes and proportional sizes to implement the present invention as the case may be.
Fig. 1 is the structural representation of the backlight module of prior art；
Fig. 2 is the connection diagram between reflector plate and main FPC and reflector plate in existing use technology；
Fig. 3 is the structural representation of main FPC；
Fig. 4 is the structural representation of LB FPC；
Fig. 5 is the structural representation of backlight module of the invention；
Fig. 6 is the backboard and LED connection diagrams () of backlight module of the invention；
Fig. 7 is the backboard and LED connection diagrams (two) of backlight module of the invention.
Specific embodiment
With reference to the description of accompanying drawing and the specific embodiment of the invention, details of the invention can be clearly understood.But
It is, the specific embodiment of invention described herein to be only used for explaining the purpose of the present invention, and can not understands by any way
Into being limitation of the present invention.Under the teachings of the present invention, technical staff is contemplated that based on any possible change of the invention
Shape, these are regarded as belonging to the scope of the present invention, and below in conjunction with accompanying drawing, the invention will be further described.
Fig. 5 to Fig. 7 is respectively the structural representation of backlight module of the invention, the backboard of backlight module is connected with LED and shows
It is intended to the backboard and LED connection diagrams (two) of (one) and backlight module.
As shown in figure 5, backlight module of the invention includes：Backboard 1, reflector plate 2, light guide plate 3, conductive tie layers 4 and hair
Optical diode 5 (LED), wherein, reflector plate 2 is arranged on backboard 1, and reflector plate 2 is provided with light guide plate 3, and the side of reflector plate 2 sets
Have conductive tie layers 4, light emitting diode 5 connects with conductive tie layers 4, conductive tie layers 4 can by the positive pole of light emitting diode and
Negative pole (positive pole and negative pole not shown in figure) is drawn out to the bottom of backboard 1.
Specifically, in the present invention, light emitting diode 5 is provided with glue frame 6 away from the side of light guide plate 3, light guide plate 3 is provided with
Blooming piece 7, blooming piece 7 is provided with display screen 8, and display screen 8 is provided with flexible PCB 9, flexible PCB 9 with lean on
The glue frame 6 of nearly light emitting diode 5 is relative, and flexible PCB 9 includes easy folding part 91, and in one embodiment, display screen 8 is by patch
Sticker is in glue frame 6.
Specifically, as shown in figs. 6 or 7, conductive tie layers of the invention 4 include successively from top to bottom the first insulating barrier 41,
The insulating barrier 43 of metal level 42 and second, in one embodiment, the first insulating barrier 41 and the second insulating barrier 43 are by gathering to benzene two
Formic acid glycol ester is made, and metal level 42 is made up of copper or silver metal.
In the present invention, directly by the piece of light emitting diode 5 at the trilaminate material of backboard 1, i.e., direct piece is in conduction
On articulamentum 4, so as to realize for backboard 1 and light emitting diode 5 being designed to an entirety, such design can make in backlight module
LB FPC parts are not needed, that is, realizes the simple purpose of back light module unit structure of the invention, in backlight module of the invention assembling
Shi Wuxu LB FPC position fixture, can save LB FPC and assemble this flow, assemble simpler；Meanwhile, metal level 42 will be luminous
The both positive and negative polarity of diode 5 is drawn out to the downside of backboard 1, and spills the leg 51 of light emitting diode 5.
Can realize that conductive tie layers 4 can be by the positive pole of light emitting diode and negative pole by two kinds of implementation methods in the present invention
(positive pole and negative pole not shown in figure) is drawn out to the bottom of backboard 1.
Wherein, the first implementation method is, as shown in fig. 6, in the present invention, backboard 1 includes bottom 11 and positioned at bottom
The vertical portion 12 of 11 both sides, conductive tie layers 4 bypass vertical portion 12 and the positive pole and negative pole of light emitting diode 5 are drawn out into the bottom
The bottom in portion 11.
Another embodiment is, as shown in fig. 7, in the present invention, backboard 1 includes bottom 11 and positioned at the both sides of bottom 11
Vertical portion 12, the positive pole and negative pole of light emitting diode 5 are drawn out to the bottom of bottom 11 through bottom 11 conductive tie layers 4,
Groove 111 is provided with bottom 11, be drawn out to for the positive pole and negative pole of light emitting diode 5 through groove 111 by conductive tie layers 4
The bottom of bottom 11.
When backlight module of the invention is assembled, easy folding part 91 can be bent to the light emitting diode 5 positioned at the bottom of backboard 1
The positive pole of extraction and the downside of negative pole, i.e., positioned at light emitting diode 5 leg 51 bottom, as shown in figure 5, flexible PCB 9
On have leg 92, during assembling, the both positive and negative polarity of light emitting diode 5 draw leg 51 it is relative simultaneously with the leg 92 on flexible PCB 9
Soldering is carried out, so as to realize the purpose that flexible PCB 9 is connected with light emitting diode 5.
Compared with existing backlight module, back light module unit structure of the invention is simple, and it is directly by LED pieces in backboard
On, it is not necessary to lamp source flexible PCB, to realize simplifying the structure of backlight module, meanwhile, LED is directly contacted with backboard, is increased
Backlight module radiating effect, i.e., backlight module of the invention has good radiating effect, so as to meet high-capacity LED
Cooling requirements；In addition, when backlight module is assembled, because back light module unit structure is simple, i.e., due to without lamp source flexible PCB (LB
FPC) part, fixture is positioned during assembling without LB FPC, can be omitted LB FPC and be assembled this flow, i.e., can realize that assembling is simple
Effect.
Above-mentioned technical proposal is one embodiment of the present invention, for those skilled in the art, at this
On the basis of disclosure of the invention application process and principle, it is easy to make various types of improvement or deformation, this is not limited solely to
Invent the method described by above-mentioned specific embodiment.Although by reference to preferred embodiment, invention has been described,
Without departing from the scope of the invention, various improvement can be carried out to it and portion therein can be replaced with equivalent
Part.Especially, as long as not existing structural hazard, the every technical characteristic being previously mentioned in each embodiment can group in any way
Altogether.The invention is not limited in specific embodiment disclosed herein, but the institute including falling within the scope of the appended claims
There is technical scheme.
Claims (10)
1. a kind of backlight module, it is characterised in that the backlight module includes：
Backboard；
Reflector plate, it is arranged on the backboard, and the reflector plate is provided with light guide plate, and the side of the reflector plate is provided with conduction
Articulamentum；
Light emitting diode, it connects with the top of the conductive tie layers, and the conductive tie layers can be by the light emitting diode
Positive pole and negative pole be drawn out to the bottom of the backboard.
2. backlight module as claimed in claim 1, it is characterised in that the conductive tie layers include first successively from top to bottom
Insulating barrier, metal level and the second insulating barrier, the metal level connect with the light emitting diode.
3. backlight module as claimed in claim 2, it is characterised in that first insulating barrier and second insulating barrier are by gathering
Ethylene glycol terephthalate is made.
4. backlight module as claimed in claim 2, it is characterised in that the metal level is made up of copper or silver metal.
5. backlight module as claimed in claim 1, it is characterised in that the backboard includes the perpendicular of bottom and the two bottom sides
Straight portion, the conductive tie layers bypass the vertical portion and the positive pole and negative pole of the light emitting diode are drawn out into the bottom
The positive pole and negative pole of the light emitting diode are drawn out to the bottom by bottom or the conductive tie layers through the bottom
Bottom.
6. the backlight module as described in any one in claim 1 to 5, it is characterised in that the light emitting diode is away from institute
The side for stating light guide plate is provided with glue frame.
7. backlight module as claimed in claim 6, it is characterised in that the light guide plate is provided with blooming piece, the optics
Diaphragm top is provided with display screen.
8. backlight module as claimed in claim 7, it is characterised in that the display screen is provided with flexible PCB, described
Flexible PCB is relative with the module near the light emitting diode, and the flexible PCB includes easy folding part, described easy
Folding part can be bent to positive pole and the downside of negative pole of the light emitting diode positioned at the bottom of the backboard.
9. backlight module as claimed in claim 8, it is characterised in that the easy folding part is bent to the light emitting diode
Positive pole and negative pole downside when, the weldering that the positive pole and negative pole of the leg of the flexible PCB and the light emitting diode are drawn
Pin is corresponding.
10. backlight module as claimed in claim 7, it is characterised in that the display screen is sticked in the glue by rubberizing
On frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611190049.3A CN106773295A (en) | 2016-12-21 | 2016-12-21 | A kind of backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611190049.3A CN106773295A (en) | 2016-12-21 | 2016-12-21 | A kind of backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106773295A true CN106773295A (en) | 2017-05-31 |
Family
ID=58893401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611190049.3A Pending CN106773295A (en) | 2016-12-21 | 2016-12-21 | A kind of backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106773295A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966858A (en) * | 2017-12-25 | 2018-04-27 | 维沃移动通信有限公司 | Backlight module and display device |
| CN108254960A (en) * | 2018-01-31 | 2018-07-06 | 广东欧珀移动通信有限公司 | Electronic device and its display module |
| CN108426200A (en) * | 2018-03-23 | 2018-08-21 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN108535903A (en) * | 2018-04-25 | 2018-09-14 | 京东方科技集团股份有限公司 | A kind of display module and display device |
| CN109683394A (en) * | 2019-01-25 | 2019-04-26 | 惠州市华星光电技术有限公司 | Backlight and preparation method thereof |
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Application publication date: 20170531 |
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| RJ01 | Rejection of invention patent application after publication |