CN108873474A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN108873474A CN108873474A CN201810713234.9A CN201810713234A CN108873474A CN 108873474 A CN108873474 A CN 108873474A CN 201810713234 A CN201810713234 A CN 201810713234A CN 108873474 A CN108873474 A CN 108873474A
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- Prior art keywords
- connecting portion
- backlight module
- main part
- flexible circuit
- circuit board
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention provides a kind of backlight module and display device, and backlight module includes the first flexible circuit board, including：Main part；One or more light-emitting components, are mounted on main part；And first connecting portion, it is coupled to main part；Second connecting portion is coupled to main part；Grounding parts are coupled to second connecting portion；And shading glue, it is attached on the main part of the first flexible circuit board；When wherein, after second connecting portion reflexed, grounding parts are located on shading glue.The backlight module and display device, with grounding parts, and the first flexible circuit board is connected to by second connecting portion, when there is electrostatic generation, in meeting instantaneous transmission to grounding parts, without being transmitted on light-emitting component, later, it is transmitted on main flexible circuit board and is discharged by second connecting portion, first connecting portion, so as to avoid light-emitting component by electrostatic damage.In addition, being attached on shading glue since grounding parts are along second connecting portion reflexed, does not need additionally to increase by one layer of PET, saved cost.
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
There is Thin Film Transistor-LCD (TFT-LCD) low-voltage, micro energy lose, display to contain much information, be easy to colored
The advantages that change, occupies in current monitor market and rich leads status.It has been widely used in electronic computer, electronic recording
In the electronic equipments such as sheet, mobile phone, video camera, high-definition television.
Liquid crystal display on existing market is largely backlight liquid crystal display, including liquid crystal display panel and backlight mould
Group, liquid crystal display panel are oppositely arranged with backlight module, and backlight module provides display light source to liquid crystal display panel, so that liquid crystal display panel is shown
Image is widely used light emitting diode (LED) as backlight for backlight module at present.
Referring to Fig.1, Fig. 2, Fig. 1 depict the partial schematic diagram of existing backlight module, and the structure that Fig. 2 depicts lamp bar 14 is shown
It is intended to.As shown in Figure 1, backlight module 1 includes iron frame 11, glue frame 12, lamp glue 13, lamp bar 14, shading glue 15, PET material layers 16
And reflector plate 17.
As shown in Figure 1, glue frame 12, reflector plate 17 are assembled in iron frame 11, and lamp glue 13 is used to lamp bar 14 being fixed on glue frame
On 12, lamp bar 14 is equipped with shading glue 15, and shading glue 15 is equipped with PET material layers 16, and effect is to form " adhesive-free area ", specifically
For, since the biadhesive of shading glue 15 then needs to paste to prevent shading glue 15 from pasting the display panel (not being painted) of top
Upper strata ethylene glycol terephthalate (Polyethylene terephthalate, abbreviation PET) material layer 16, thus
Avoid and paste display panel, thus play anti-fragmentation, convenient for doing over again the effects of.
As shown in Figure 1 and Figure 2, lamp bar 14 includes main part 141 and multiple LED light 142, and LED light 142 passes through surface-assembled
Technology (Surface Mounted Technology, abbreviation SMT) is welded on main part 141.
But for existing backlight module 1, since lamp bar 14 is without GND grounding design, so that the electrostatic around LED light 142
It can not be guided, be easy to be wounded, or even cause dead lamp.In addition, due to needing to stick on PET material layers 16 on shading glue 15, from
And increase cost.
Summary of the invention
In view of above-mentioned, the present invention provides a kind of backlight module and display devices, to solve the no ground design of existing lamp bar
Brought lamp damages and needs to stick on cost problem brought by PET material layer.
An aspect of of the present present invention proposes a kind of backlight module, including
First flexible circuit board, including：
Main part；
One or more light-emitting components are mounted on the main part；And
First connecting portion is coupled to the main part；
Second connecting portion is coupled to the main part；
Grounding parts are coupled to the second connecting portion；And
Shading glue is attached on the main part of first flexible circuit board；
When wherein, after the second connecting portion reflexed, the grounding parts are located on the shading glue.
In a wherein embodiment, the main part includes first end, second end, the first face and the second face, wherein institute
It is corresponding with the second end to state first end, first face is corresponding with second face.
In a wherein embodiment, the second connecting portion is coupled to the first end of the main part, described to connect
Ground portion is attached on the shading glue in second face.
In a wherein embodiment, the grounding parts cover the first end of the main part to described second
End.
In a wherein embodiment, the second connecting portion includes the first connection branch, the second connection branch, and described the
One connection branch is coupled to first face of the main part close to the first end, and second connection branch is coupled to institute
State first face of the main part close to the second end；
The grounding parts include the first ground connection branch, the second ground connection branch, are respectively coupled to first connection branch, institute
The second connection branch is stated, and is attached on the shading glue in second face respectively.
In a wherein embodiment, the grounding parts are copper foil.
In a wherein embodiment, the copper foil is with a thickness of 0.04~0.07mm.
In a wherein embodiment, the second connecting portion is flexible circuit board structure or copper foil structure.
In a wherein embodiment, the backlight module further includes the second flexible circuit board, is connected by described first
Portion is coupled to first flexible circuit board.
In a wherein embodiment, the light-emitting component is LED, Mini-LED or Micro-LED.
Another aspect of the present invention proposes a kind of display device, including backlight module described in any of the above embodiments.
Backlight module and display device proposed by the invention has grounding parts, and is connected to the by second connecting portion
One flexible circuit board, when there is electrostatic generation, in meeting instantaneous transmission to grounding parts, without being transmitted on light-emitting component, later,
It is transmitted on main flexible circuit board and is discharged by second connecting portion, first connecting portion, so as to avoid light-emitting component by quiet
Electricity damage.In addition, being attached on shading glue, since grounding parts are along second connecting portion reflexed without additionally increasing by one
Layer PET, thus can be with save the cost.
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 depicts the partial schematic diagram of existing backlight module；
Fig. 2 depicts the structural schematic diagram of lamp bar 14；
Fig. 3 depicts the partial structural diagram of the backlight module of one embodiment of the present invention；
Fig. 3 A depicts the partial schematic diagram of the backlight module of Fig. 3；
Fig. 3 B depicts the backlight module of Fig. 3 A for the schematic diagram after interconnecting piece reflexed；
Fig. 3 C depicts the operation schematic diagram of the backlight module of Fig. 3；
Fig. 4 depicts the partial structural diagram of the backlight module of another embodiment of the present invention；
Fig. 4 A depicts the partial schematic diagram of the backlight module of Fig. 4；And
Fig. 4 B depicts the backlight module of Fig. 4 A for the schematic diagram after interconnecting piece reflexed.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should 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 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.
It should also be noted that both indicating to be directly connected to, also illustrating that and be indirectly connected with appeared in text " coupling ".
The partial structurtes signal of the backlight module of one embodiment of the present invention is depicted referring to Fig. 3, Fig. 3 A, Fig. 3 B, Fig. 3
Figure；Fig. 3 A depicts the partial schematic diagram of the backlight module of Fig. 3；The backlight module that Fig. 3 B depicts Fig. 3 A will be after interconnecting piece reflexed
Schematic diagram；Fig. 3 C depicts the operation schematic diagram of the backlight module of Fig. 3.
As seen from the figure, backlight module 3 include iron frame 31, glue frame 32, lamp glue 33, the first flexible circuit board 34, shading glue 35,
Reflector plate 37, second connecting portion 38, grounding parts 39.
First flexible circuit board 34 includes main part 341, light-emitting component 342, first connecting portion 343, wherein one or more
A light-emitting component 342 is mounted on main part 341, in order to brief, therefore, a light-emitting component is only schematically drawn in figure
342, first connecting portion 343 is coupled to main part 341.Second connecting portion 38 is coupled to main part 341；Grounding parts 39, coupling
In second connecting portion 38.
In addition, glue frame 32, reflector plate 37 are assembled in iron frame 31, lamp glue 33 is used to flexible circuit board 34 being fixed on glue frame
On 32, flexible circuit board 34 is equipped with shading glue 35, that is, shading glue 35 is attached to the main part 341 of the first flexible circuit board 34
On.
In present embodiment, when after 38 reflexed of second connecting portion, grounding parts 39 are located on shading glue 35.It is specific and
Speech, as shown in Figure 3A, with the reflexed to second connecting portion 38, so that grounding parts will be gone on main part 341, and then is covered
It on shading glue 35 and pastes, as shown in Figure 3 C.
In present embodiment, main part 341 include first end, second end, the first face and the second face, wherein first end with
Second end is corresponding, and the first face is corresponding with the second face, and first end is close to second connecting portion 38, and second end is far from second connecting portion
38, low beam glue 33 is leaned in the first face, and the second face is close to shading glue 35.
In present embodiment, second connecting portion 38 is coupled to the first end of main part 341, and grounding parts 39 are attached to close to master
On the shading glue 35 in 341 second face of body portion, preferably, grounding parts 39 cover the first end of main part 341 to second end, that is,
In the first end to the corresponding shading glue 35 of second end for covering main part 341, but it is not limited thereto, it can also be incomplete
Covering, only part covering.
In present embodiment, backlight module 3 can also include the second flexible circuit board (not being painted), i.e., main flexible circuit
Plate is coupled to the first flexible circuit board 34 by first connecting portion 343, and grounding parts 39 can will be quiet by first connecting portion 343
Main flexible circuit board is transported in fax, to discharge.
In present embodiment, grounding parts 39 are copper foil, preferably, being attached to screening for full wafer copper foil so as to full wafer
On optical cement 35.The thickness of copper foil, can depending on the gap value between actual shading glue 35 and display panel, preferably,
It can be 0.04~0.07mm.
In present embodiment, second connecting portion 38 is flexible circuit board structure, preferably, be integrally formed with main part 341,
It is of course also possible to be copper foil structure, it is not limited.
In present embodiment, light-emitting component 342 is that can be LED, is also possible to Mini-LED or Micro-LED etc..
It should be noted that the backlight module 3 of present embodiment, can also include certainly other components, such as guide-lighting
Plate, diffusion sheet, prismatic lens etc., but in order to describe briefly, details are not described herein.
In present embodiment, since backlight module 3 has grounding parts 39, and to be connected to first soft by second connecting portion 38
Property circuit board 34, when there is electrostatic generation, can instantaneous transmission to grounding parts 39, without being transmitted on light-emitting component 342, it
Afterwards, it is transmitted on main flexible circuit board and is discharged by second connecting portion 38, first connecting portion 341, so as to avoid shining
Element 342 is by electrostatic damage.In addition, be attached on shading glue 35 since grounding parts 38 are along 38 reflexed of second connecting portion, thus
It does not need additionally to increase by one layer of PET, thus can be with save the cost.
Referring to Fig. 4, Fig. 4 A, Fig. 4 B, the partial structurtes that Fig. 4 depicts the backlight module of another embodiment of the present invention are shown
It is intended to；Fig. 4 A depicts the partial schematic diagram of the backlight module of Fig. 4；Fig. 4 B depicts the backlight module of Fig. 4 A for interconnecting piece reflexed
Schematic diagram afterwards.
As seen from the figure, backlight module 4 includes iron frame, 41, glue frame 42, lamp glue 43, the first flexible circuit board 44, shading glue
45, reflector plate 47, second connecting portion 48, grounding parts 49.
First flexible circuit board 44 includes main part 441, light-emitting component 442, first connecting portion 343, wherein one or more
A light-emitting component 442 is mounted on main part 441, and first connecting portion 443 is coupled to main part 441.Second connecting portion 48, coupling
It is connected to main part 441；Grounding parts 49 are coupled to second connecting portion 48.
In addition, glue frame 42, reflector plate 47 are assembled in iron frame 41, lamp glue 43 is for the first flexible circuit board 44 to be fixed on
In glue frame 42, the first flexible circuit board 44 is equipped with shading glue 45, that is, shading glue 45 is attached to the master of the first flexible circuit board 44
In body portion 441.
In present embodiment, main part 441 include first end, second end, the first face and the second face, wherein first end with
Second end is corresponding, and the first face is corresponding with the second face, and low beam glue 43 is leaned in the first face, and the second face is close to shading glue 45.
In present embodiment, second connecting portion 48 includes the first connection branch 48a, the second connection branch 48b, the first connection
Branch 48a is coupled to first face of the main part 441 close to first end, and the second connection branch 48b is coupled to main part 441 close to the
First face at two ends.Correspondingly, grounding parts 49 include the first ground connection branch 49a, the second ground connection branch 49b, are respectively coupled to the
One connection branch 48a, the second connection branch 48b, and be attached on the shading glue 45 in the second face respectively.
As seen from the figure, after first connects branch 48a, the second connection branch 48b reflexed, at this point, the first ground connection branch
49a, the second ground connection branch 49b are accordingly flipped on shading glue 45, and are attached on shading glue 45.
In present embodiment, backlight module 4 also can also include the second flexible circuit board (not being painted), i.e., main flexible circuit
Plate is coupled to the first flexible circuit board 44 by first connecting portion 443.
In present embodiment, the first ground connection branch 49a, the second ground connection branch 49b are copper foil, preferably, being full wafer copper
Foil is attached on shading glue 45 so as to full wafer.The thickness of copper foil, can according to actual shading glue 45 and display panel it
Between gap value depending on, preferably, can be 0.04~0.07mm.
In present embodiment, the first connection branch 48a, the second connection branch 48b are flexible circuit board structure, preferably,
It is integrally formed with main part 441, it is of course also possible to be copper foil structure, is not limited.
In present embodiment, light-emitting component 442 is that can be LED, is also possible to Mini-LED or Micro-LED etc..
In present embodiment, since backlight module 4 has the first ground connection branch 49a, the second ground connection branch 49b, lead to respectively
Cross the first connection branch 48a, the second connection branch 48b is connected to the first flexible circuit board 44, can be instant when there is electrostatic generation
It is transmitted to the first ground connection branch 49a, the second ground connection branch 49b later, passes through respectively without being transmitted on light-emitting component 442
First connection branch 48a, the second connection branch 48b, and be transmitted on main flexible circuit board and put through first connecting portion 441
Electricity, so as to avoid light-emitting component 442 by electrostatic damage.In addition, due to the first ground connection branch 49a, the second ground connection branch 49b,
Respectively along the first connection branch 48a, the second connection branch 48b reflexed, it is attached on shading glue 45, without additionally increasing
Add one layer of PET, so having saved cost.
In yet another embodiment, a kind of display device may include backlight module shown in Fig. 3,3A, 3B, can also be with
Including backlight module shown in Fig. 4,4A, 4B.Certainly, the display device of present embodiment can also include display panel, this is aobvious
Show that panel can be liquid crystal display panel, can be stacked setting with backlight module, it is no longer superfluous herein in order to describe briefly
It states.
Backlight module proposed by the invention has grounding parts, and is connected to the first flexible circuit by second connecting portion
Plate in meeting instantaneous transmission to grounding parts, without being transmitted on light-emitting component, later, passes through second and connects when there is electrostatic generation
Socket part, first connecting portion, which are transmitted on main flexible circuit board, discharges, so as to avoid light-emitting component by electrostatic damage.Separately
Outside, it since grounding parts are along second connecting portion reflexed, is attached on shading glue, without additionally increasing by one layer of PET, thus
It can be with save the cost.
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, which is characterized in that including：
First flexible circuit board, including：
Main part；
One or more light-emitting components are mounted on the main part；And
First connecting portion is coupled to the main part；
Second connecting portion is coupled to the main part；
Grounding parts are coupled to the second connecting portion；And
Shading glue is attached on the main part of first flexible circuit board；
When wherein, after the second connecting portion reflexed, the grounding parts are located on the shading glue.
2. backlight module according to claim 1, which is characterized in that the main part includes first end, second end, first
Face and the second face, wherein the first end is corresponding with the second end, and first face is corresponding with second face.
3. backlight module according to claim 2, which is characterized in that the second connecting portion is coupled to the main part
The first end, the grounding parts are attached on the shading glue in second face.
4. backlight module according to claim 3, which is characterized in that the grounding parts cover the institute of the main part
First end is stated to the second end.
5. backlight module according to claim 2, it is characterised in that：
The second connecting portion includes the first connection branch, the second connection branch, and first connection branch is coupled to the master
Body portion is coupled to the main part close to the second end close to first face of the first end, second connection branch
First face；
The grounding parts include the first ground connection branch, the second ground connection branch, are respectively coupled to first connection branch, described the
Two connection branches, and be attached on the shading glue in second face respectively.
6. backlight module according to claim 1, which is characterized in that the grounding parts are copper foil.
7. backlight module according to claim 6, which is characterized in that the copper foil is with a thickness of 0.04~0.07mm.
8. backlight module according to claim 1, which is characterized in that the second connecting portion be flexible circuit board structure or
Copper foil structure.
9. backlight module according to claim 1, which is characterized in that further include：
Second flexible circuit board is coupled to first flexible circuit board by the first connecting portion.
10. backlight module according to claim 1, which is characterized in that the light-emitting component be LED, Mini-LED or
Micro-LED。
11. a kind of display device, which is characterized in that including the backlight module as described in any one of claim 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810713234.9A CN108873474B (en) | 2018-06-29 | 2018-06-29 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810713234.9A CN108873474B (en) | 2018-06-29 | 2018-06-29 | Backlight module and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108873474A true CN108873474A (en) | 2018-11-23 |
| CN108873474B CN108873474B (en) | 2021-08-13 |
Family
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| CN201810713234.9A Active CN108873474B (en) | 2018-06-29 | 2018-06-29 | Backlight module and display device |
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| KR20080097778A (en) * | 2007-05-03 | 2008-11-06 | 엘지이노텍 주식회사 | Lcd module |
| KR20090017778A (en) * | 2007-08-16 | 2009-02-19 | 엘지이노텍 주식회사 | Lcd module |
| CN101799594A (en) * | 2009-02-10 | 2010-08-11 | 胜华科技股份有限公司 | Liquid crystal display device |
| CN101866069A (en) * | 2009-04-17 | 2010-10-20 | 群康科技(深圳)有限公司 | Display device |
| CN205405018U (en) * | 2016-02-19 | 2016-07-27 | Tcl显示科技（惠州）有限公司 | Display module assembly and display device are shaded |
| CN106444154A (en) * | 2016-11-16 | 2017-02-22 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN107966858A (en) * | 2017-12-25 | 2018-04-27 | 维沃移动通信有限公司 | Backlight module and display device |
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2018
- 2018-06-29 CN CN201810713234.9A patent/CN108873474B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080097778A (en) * | 2007-05-03 | 2008-11-06 | 엘지이노텍 주식회사 | Lcd module |
| KR20090017778A (en) * | 2007-08-16 | 2009-02-19 | 엘지이노텍 주식회사 | Lcd module |
| CN101799594A (en) * | 2009-02-10 | 2010-08-11 | 胜华科技股份有限公司 | Liquid crystal display device |
| CN101866069A (en) * | 2009-04-17 | 2010-10-20 | 群康科技(深圳)有限公司 | Display device |
| CN205405018U (en) * | 2016-02-19 | 2016-07-27 | Tcl显示科技（惠州）有限公司 | Display module assembly and display device are shaded |
| CN106444154A (en) * | 2016-11-16 | 2017-02-22 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN107966858A (en) * | 2017-12-25 | 2018-04-27 | 维沃移动通信有限公司 | Backlight module and display device |
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| Publication number | Publication date |
|---|---|
| CN108873474B (en) | 2021-08-13 |
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