CN205048263U - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
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- CN205048263U CN205048263U CN201520734716.4U CN201520734716U CN205048263U CN 205048263 U CN205048263 U CN 205048263U CN 201520734716 U CN201520734716 U CN 201520734716U CN 205048263 U CN205048263 U CN 205048263U
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- backlight module
- wire
- flexible pcb
- display floater
- lamp bar
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Abstract
The utility model relates to a backlight module and display device, backlight unit includes: electrically conductive sticky tape bonds backlight unit to display panel, with the transmission of the electrostatic charge among the display panel to first wire, the electrostatic charge is derived to first wire. The utility model discloses an electrostatic charge leading -in backlight unit of electrically conductive sticky tape in with display panel to static is derived to first wire by among the backlight unit, and it derives static to need not to set up first wire on the one hand in display panel, also need not promptly the wiring adjustment among the display panel, and it derives the structure to be convenient for set up static, on the other hand need because the lamp strip sets up in the side of light guide plate, also set up in display panel's side to the leading -in static in display panel's side when carrying on display panel static electricity discharge when test promptly, and the electrically conductive sticky tape that consequently contacts with the lamp strip also lies in display panel's side, can to the lamp strip and derive, improve the percent of pass of static electricity discharge test with following the leading -in static fast transmission in display panel side.
Description
Technical field
The utility model relates to Display Technique field, in particular to a kind of backlight module and a kind of display unit.
Background technology
Existing display floater, due to the factor such as manufacture craft or environment, ESD (static discharge) can be there is therein, if cannot fast and effeciently electrostatic be derived, when so static charge accumulation is more, higher electrostatic potential may be partially formed at display floater, and then produce larger release current, damage can be caused to the circuit of display floater or structure.
Utility model content
How fast and effectively derive the electrostatic of display floater technical problem to be solved in the utility model is.
For this purpose, the utility model proposes a kind of backlight module, comprising:
Conductive tape, for described backlight module is bonded to display floater, transfers to the first wire by the electrostatic charge in described display floater;
Described first wire, for deriving electrostatic charge.
Preferably, backlight module also comprises:
Lamp bar,
Wherein, described first wire is arranged in described lamp bar, and described conductive tape is bonded to described lamp bar, and contacts with described first wire.
Preferably, backlight module also comprises:
Light guide plate,
Wherein, described lamp bar is arranged on the side of described light guide plate.
Preferably, described conductive tape is arranged on the edge of described light guide plate, and described lamp bar is near the side of described display floater, the light that the edge for blocking described light guide plate sends.
Preferably, at described lamp bar, the side of display floater is provided with conductive structure, described conductive structure is connected to described first wire, and described conductive tape contacts with described conductive structure.
Preferably, described conductive tape contacts with described conductive structure face.
Preferably, at described lamp bar, the side of display floater is provided with at least one via hole, at least one via hole described, is provided with conductive structure.
Preferably, described conductive tape comprises:
First conducting resinl water layer, for the display floater that bonds;
Conductive base sheet material layers, is arranged on described first conducting resinl water layer supreme;
Second conducting resinl water layer, is arranged on described conductive base sheet material layers, for the backlight module that bonds.
Preferably, the main material three of the main material of described first conducting resinl water layer, the main material of the second conducting resinl water layer, described conductive base sheet material layers is one of at least light-proof material.
Preferably, in the main material of described first conducting resinl water layer and in the main material of the second conducting resinl water layer, be provided with conducting particles, described conducting particles comprises following at least one: nickel, silver, aluminium, copper.
Preferably, backlight module also comprises:
First flexible PCB, described first flexible PCB is provided with the drive circuit of backlight module, described first flexible PCB is connected by pad area with the second flexible PCB of outside, ground wire is provided with in described second flexible PCB, the terminals of described ground wire are provided with in described pad area
Wherein, described first wire is connected with described terminals.
The utility model also proposed a kind of display unit, comprises the backlight module described in above-mentioned any one.
Preferably, display unit also comprises:
Second flexible PCB, for connecting external power source, ground wire is provided with in described second flexible PCB, described second flexible PCB is connected by pad area with the first flexible PCB in described backlight module, ground wire is provided with in described second flexible PCB, the terminals of described ground wire are provided with in described pad area
Wherein, described first wire is connected with described terminals.
According to technique scheme, by conductive tape, the electrostatic charge in display floater is imported backlight module, and by the first wire in backlight module, electrostatic is derived, without the need to arranging the first wire in display floater, electrostatic is derived on the one hand, also namely without the need to adjusting the wiring in display floater, be convenient to arrange electrostatic derived type structure; On the other hand when carrying out Electro-static Driven Comb test to display floater, the side to display floater is needed to import electrostatic, because lamp bar is arranged on the side of light guide plate, also the side of display floater is namely arranged on, therefore the conductive tape contacted with lamp bar is also positioned at the side of display floater, the electrostatic imported from display floater side can be quickly transferred to lamp bar and derive, improve the percent of pass of Electro-static Driven Comb test.
Accompanying drawing explanation
Can understanding feature and advantage of the present utility model clearly by reference to accompanying drawing, accompanying drawing is schematic and should not be construed as and carry out any restriction to the utility model, in the accompanying drawings:
Fig. 1 shows the structural representation of the backlight module according to the utility model embodiment;
Fig. 2 shows the schematic cross-section along AA ' in Fig. 1;
Fig. 3 shows the schematic cross-section along BB ' in Fig. 1;
Fig. 4 shows the laminating schematic diagram of display floater according to the utility model embodiment and backlight module;
Fig. 5 shows the structural representation of the conductive tape according to the utility model embodiment;
Fig. 6 shows according to the flow of electrostatic charges of the utility model embodiment to schematic diagram;
Fig. 7 show according to the flow of electrostatic charges of the utility model embodiment to concrete schematic diagram;
Drawing reference numeral illustrates:
1-conductive tape; 11-first conducting resinl water layer; 12-conductive base sheet material layers; 13-second conducting resinl water layer; 2-first wire; 3-lamp bar; 4-light guide plate; 5-pad area; 6-terminals; 10-backlight module; 20-display floater.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the drawings and specific embodiments, the utility model is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the utility model; but; the utility model can also adopt other to be different from other modes described here and implement, and therefore, protection domain of the present utility model is not by the restriction of following public specific embodiment.
As shown in Figure 1 to Figure 3, according to the backlight module of the utility model embodiment, comprising:
Conductive tape 1, for backlight module 10 is bonded to display floater 20, transfers to the first wire by the electrostatic charge in display floater 20;
First wire 2, for electrostatic charge is derived, such as, shown in Fig. 6, can by the first wire 2 ground connection.
Owing to being provided with many wirings such as thin film transistor (TFT), data wire, grid line in display floater 20, it is larger that electrostatic derived circuit difficulty is additionally set in display floater 20.Electrostatic charge in display floater 20 is imported backlight module 10 by conductive tape 1 by the present embodiment, and by the first wire 2 in backlight module 10, electrostatic is derived, without the need to arranging electrostatic derived circuit in display floater 20, also namely without the need to adjusting the wiring in display floater 20, be convenient to arrange electrostatic derived type structure.
In addition, when carrying out Electro-static Driven Comb test to display floater, the side to display floater is needed to import electrostatic, because lamp bar is arranged on the side of light guide plate, also the side of display floater is namely arranged on, therefore the conductive tape contacted with lamp bar is also positioned at the side of display floater, the electrostatic imported can be quickly transferred to lamp bar and derive from display floater side.
Preferably, backlight module 10 also comprises:
Lamp bar 3,
Wherein, the first wire 2 is arranged in lamp bar 3, and conductive tape 1 is bonded to lamp bar 3, and contacts with the first wire 2.
In backlight module 10, generally lamp bar 3 place is provided with conductive structure, drive circuit and first flexible PCB that corresponding wiring line is set of such as lamp bar 3.The present embodiment, by arranging the first wire 2 in lamp bar 3, makes the first wire 2 electrostatic charge can be derived by shorter circuit structure.
Preferably, backlight module 10 also comprises:
Light guide plate 4,
Wherein, lamp bar 3 is arranged on the side of light guide plate 4.
Preferably, conductive tape 1 is arranged on the edge of light guide plate 4, and lamp bar is near the side of display floater 20, the light that the edge for blocking light guide plate 4 sends.
As described in Figure 4, display floater 20 can correspondingly with light guide plate 4 be arranged, and after the light that lamp bar 3 sends enters light guide plate 4, light guide plate 4 evenly exports light conduction to the whole upper surface of light guide plate 4 to display floater 20.
Preferably, at lamp bar 3, the side of display floater 20 is provided with conductive structure, conductive structure is connected to the first wire 2, and conductive tape 1 contacts with conductive structure.
Preferably, conductive tape 1 contacts with conductive structure face.
In the present embodiment, conductive adhesive structure can be arranged on the metal level of lamp bar 3 near the side of display floater 20, and metal level can be manufactured from the same material with the first wire 2, and wherein metal level only can be arranged on the two ends of lamp bar 3.By conductive tape 1 is contacted with conductive structure face, can ensure that the resistance between conductive tape 1 and the first wire 2 is less, and be electrically connected good, thus make the electric charge in conductive tape 1 can transfer to the first wire 2 well, and derived by the first wire 2.
Preferably, at lamp bar 3, the side of display floater 20 is provided with at least one via hole, at least one via hole, is provided with conductive structure.
By arranging conductive structure in the vias, the thickness of backlight module 10 can not be increased, being conducive to lightening.And contacted with conductive tape 1 by the conductive structure in multiple through hole, that can reduce that conductive tape and the first wire 2 occur to open a way opens rate, ensures that the electric charge in conductive tape 1 can transfer to the first wire 2 well, and is derived by the first wire 2.
As shown in Figure 5, preferably, conductive tape 1 comprises:
First conducting resinl water layer 11, for the display floater 20 that bonds;
Conductive base sheet material layers 12, is arranged on the first conducting resinl water layer 11 supreme;
Second conducting resinl water layer 13, is arranged on conductive base sheet material layers 12, for the backlight module 10 that bonds.
Preferably, the main material three of the main material of the main material of the first conducting resinl water layer 11, the second conducting resinl water layer 13, conductive base sheet material layers 12 is one of at least light-proof material.
By opaque conductive tape 1 being arranged on the edge of light guide plate 4, the light that light guide plate 4 sends to the region (gap such as between display floater 20 and frame) beyond display floater 20 can be blocked, thus avoid light leak, ensure good display effect.
Preferably, in the main material of the first conducting resinl water layer 11 and the main material of the second conducting resinl water layer 13, be provided with conducting particles, conducting particles comprises following at least one: nickel, silver, aluminium, copper.
The main material of the first conducting resinl water layer 11 and the second conducting resinl water layer 13 can be PETG (PET), conductive base sheet material layers 12 can be made by the good material of the selection of material electric conductivity, such as aluminium, copper, graphite etc., thus ensure that electrostatic charge is after real plane transport to the first conducting resinl water layer 11, electrostatic charge can be transferred to the second conducting resinl water layer 13 by conductive base sheet material layers 12 by the first conducting resinl water layer 11 rapidly, and then by the second conducting resinl water layer 13 electrostatic charge transferred to the first wire 2 in lamp bar 3 and derive, as shown in Figure 6.
It should be noted that, the first wire 2 shown in Fig. 6 and the second conducting resinl water layer 13 only have two contact points, in fact can arrange the contact structures of the first wire 2 and the second conducting resinl water layer 13 as required, such as, face in above-described embodiment is contacted or is contacted by through hole.
As shown in Figure 7, preferably, backlight module 10 also comprises:
First flexible PCB, first flexible PCB is provided with the drive circuit of backlight module, and the first flexible PCB is connected by pad area 5 with the second flexible PCB of outside, in the second flexible PCB, be provided with ground wire, the terminals 6 of ground wire are provided with in pad area 5
Wherein, the first wire 2 is connected with terminals 6.
The present embodiment can arrange the extended line of the first wire 2 in the first flexible PCB, to be connected with the terminals 6 of ground wire in pad area.Can be provided with the ground wire be connected with external power source in second flexible PCB, this ground wire is connected to terminals 6, and electrostatic charge can be imported ground wire by terminals 6 by the first wire 2, and the final display unit deriving backlight module place.
The utility model also proposed a kind of display unit, comprises the backlight module of above-mentioned any one.
It should be noted that, the display unit in the present embodiment can be: any product or parts with Presentation Function such as Electronic Paper, mobile phone, panel computer, television set, notebook computer, DPF, navigator.
Preferably, display unit also comprises:
Second flexible PCB, for connecting external power source, is provided with ground wire in the second flexible PCB, second flexible PCB is connected by pad area with the first flexible PCB in backlight module, in the second flexible PCB, be provided with ground wire, in pad area, be provided with the terminals of ground wire
Wherein, the first wire is connected with terminals.
More than be described with reference to the accompanying drawings the technical solution of the utility model, considered in prior art, be difficult to fast and effectively derive the electrostatic of display floater, and the electrostatic test percent of pass of display floater has been lower.According to the technical solution of the utility model, by conductive tape, the electrostatic charge in display floater is imported backlight module, and by the first wire in backlight module, electrostatic is derived, without the need to arranging the first wire in display floater, electrostatic is derived on the one hand, also namely without the need to adjusting the wiring in display floater, be convenient to arrange electrostatic derived type structure; On the other hand when carrying out Electro-static Driven Comb test to display floater, the side to display floater is needed to import electrostatic, because lamp bar is arranged on the side of light guide plate, also the side of display floater is namely arranged on, therefore the conductive tape contacted with lamp bar is also positioned at the side of display floater, the electrostatic imported from display floater side can be quickly transferred to lamp bar and derive, improve the percent of pass of Electro-static Driven Comb test.
It is pointed out that in the accompanying drawings, in order to the illustrated clear size that may be exaggerated layer and region.And be appreciated that when element or layer be called as another element or layer " on " time, directly on other elements, or can there is middle layer in it.In addition, being appreciated that when element or layer are called as at another element or layer D score, directly under other elements, or can there is layer or the element of more than one centre in it.In addition, be further appreciated that when layer or element be called as two-layer or two elements " between " time, it can be two-layer or layer only between two elements, maybe can also there is more than one intermediate layer or element.Reference marker similar in the whole text indicates similar element.
In the utility model, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance.Term " multiple " refers to two or more, unless otherwise clear and definite restriction.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (14)
1. a backlight module, is characterized in that, comprising:
Conductive tape, for described backlight module is bonded to display floater, transfers to the first wire by the electrostatic charge in described display floater;
Described first wire, for deriving electrostatic charge.
2. backlight module according to claim 1, is characterized in that, also comprises:
Lamp bar,
Wherein, described first wire is arranged in described lamp bar, and described conductive tape is bonded to described lamp bar, and contacts with described first wire.
3. backlight module according to claim 2, is characterized in that, also comprises:
Light guide plate,
Wherein, described lamp bar is arranged on the side of described light guide plate.
4. backlight module according to claim 3, is characterized in that, described conductive tape is arranged on the edge of described light guide plate, and described lamp bar is near the side of described display floater, the light that the edge for blocking described light guide plate sends.
5. backlight module according to claim 4, is characterized in that, at described lamp bar, the side of described display floater is provided with conductive structure, and described conductive structure is connected to described first wire, and described conductive tape contacts with described conductive structure.
6. backlight module according to claim 5, is characterized in that, described conductive tape contacts with described conductive structure face.
7. backlight module according to claim 4, is characterized in that, at described lamp bar, the side of described display floater is provided with at least one via hole, at least one via hole described, be provided with conductive structure.
8. backlight module according to any one of claim 1 to 7, is characterized in that, described conductive tape comprises:
First conducting resinl water layer, for the display floater that bonds;
Conductive base sheet material layers, is arranged on described first conducting resinl water layer supreme;
Second conducting resinl water layer, is arranged on described conductive base sheet material layers, for the backlight module that bonds.
9. backlight module according to claim 8, is characterized in that, the main material three of the main material of described first conducting resinl water layer, the main material of the second conducting resinl water layer, described conductive base sheet material layers is one of at least light-proof material.
10. backlight module according to claim 9, is characterized in that, in the main material of described first conducting resinl water layer and in the main material of the second conducting resinl water layer, be provided with conducting particles.
11. backlight modules according to any one of claim 1 to 7 and 9 and 10, is characterized in that, also comprise:
First flexible PCB, described first flexible PCB is provided with the drive circuit of backlight module, described first flexible PCB is connected by pad area with the second flexible PCB of outside, ground wire is provided with in described second flexible PCB, the terminals of described ground wire are provided with in described pad area
Wherein, described first wire is connected with described terminals.
12. backlight modules according to claim 8, is characterized in that, also comprise:
First flexible PCB, described first flexible PCB is provided with the drive circuit of backlight module, described first flexible PCB is connected by pad area with the second flexible PCB of outside, ground wire is provided with in described second flexible PCB, the terminals of described ground wire are provided with in described pad area
Wherein, described first wire is connected with described terminals.
13. 1 kinds of display unit, is characterized in that, comprise the backlight module according to any one of claim 1 to 12.
14. display unit according to claim 13, is characterized in that, also comprise:
Second flexible PCB, for connecting external power source, ground wire is provided with in described second flexible PCB, described second flexible PCB is connected by pad area with the first flexible PCB in described backlight module, ground wire is provided with in described second flexible PCB, the terminals of described ground wire are provided with in described pad area
Wherein, described first wire is connected with described terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520734716.4U CN205048263U (en) | 2015-09-21 | 2015-09-21 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520734716.4U CN205048263U (en) | 2015-09-21 | 2015-09-21 | Backlight module and display device |
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| Publication Number | Publication Date |
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| CN205048263U true CN205048263U (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520734716.4U Active CN205048263U (en) | 2015-09-21 | 2015-09-21 | Backlight module and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114876A (en) * | 2015-09-21 | 2015-12-02 | 京东方科技集团股份有限公司 | Backlight module and display device |
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2015
- 2015-09-21 CN CN201520734716.4U patent/CN205048263U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114876A (en) * | 2015-09-21 | 2015-12-02 | 京东方科技集团股份有限公司 | Backlight module and display device |
| WO2017049882A1 (en) * | 2015-09-21 | 2017-03-30 | 京东方科技集团股份有限公司 | Backlight module and display device |
| US10139557B2 (en) | 2015-09-21 | 2018-11-27 | Boe Technology Group Co., Ltd. | Display device with backlight module using electrically conductive adhesive and grounding wire |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |