CN104864310A - Light-emitting device and backlight - Google Patents
Light-emitting device and backlight Download PDFInfo
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- CN104864310A CN104864310A CN201510179156.5A CN201510179156A CN104864310A CN 104864310 A CN104864310 A CN 104864310A CN 201510179156 A CN201510179156 A CN 201510179156A CN 104864310 A CN104864310 A CN 104864310A
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- light
- emitting device
- static discharge
- discharge unit
- illuminating module
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/02—Carrying-off electrostatic charges by means of earthing connections
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- General Engineering & Computer Science (AREA)
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Abstract
The invention provides a light-emitting device and a backlight. The light-emitting device comprises a baseplate and one or more light-emitting modules arranged on the baseplate, wherein each light-emitting module comprises a first incoming end, a second incoming end and a plurality of light-emitting units connected in series between the first incoming end and the second incoming end and further comprises one or more electrostatic discharge units connected with the first incoming end and/or the second incoming end of the light-emitting module and used for releasing static electricity at the connected incoming ends. During practical application, static electricity of the light-emitting device usually comes from the incoming ends, so that by connecting the electrostatic discharge units to the incoming ends, static electricity can be quickly released, and accordingly, the antistatic capability is improved.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of light-emitting device and backlight.
Background technology
Along with the development of electronic technology, at present, liquid crystal display (Liquid CrystlDisplay, LCD) because have the little and lightweight advantage of volume, gradually, replace the comparatively huge cathode-ray tube of traditional volume (Cathode Ray Tube, CRT), so at large use by society, be especially widely used in the electronic products such as monitor, notebook computer, digital camera and projector.Backlight is an important component part of LCD, and therefore, the market demand of LCD will inevitably drive the demand Sustainable Growth of backlight.
In various backlight, because of light emitting diode (light-emitting diode, LED) backlight has that the life-span is long, colored expressive ability strong and the advantage such as environmental protection, makes LED backlight have huge market prospects, also will become the main trend of backlight gradually.Existing LED backlight comprises a LED lamp bar (light bar), and this LED lamp bar comprises a circuit substrate and is located at the some LED on this circuit substrate.Wherein, circuit substrate is provided with the LED conductive pad (pad) that LED some with this is corresponding, to connect and fixed L ED assembly.
Such as, but the LCD module of any one, owing to having the generation of electrostatic when assembling, personnel or board may produce high-pressure electrostatic when operating, and LED therefore often can be caused impaired, even cause the damage of assembly on pcb board through the circuit of lamp bar.
In prior art, the LED in LED lamp bar is burnt in order to avoid electrostatic, usually Zener diode is set in LED inside, Zener diode is connected in parallel on the two ends of LED chip, when there being reverse transient voltage (electrostatic potential) to enter LED by negative pole, due to this direction, Zener diode impedance is lower, immediate current by Zener diode, and then avoids the luminescence chip of this transient voltage to LED and causes damage.
Because the inner space of LED is limited, the volume of Zener diode can not be too large, causes the antistatic effect of corresponding LED lamp bar poor.
Summary of the invention
One object of the present invention is to provide a kind of light-emitting device had compared with high-antistatic ability.
First aspect, the invention provides a kind of light-emitting device, comprises base plate and is arranged at least one illuminating module on described base plate; Described illuminating module comprises the first incoming end, the second incoming end and multiple luminescence unit be connected between the first incoming end and the second incoming end; Each illuminating module also comprises at least one static discharge unit, and at least one static discharge unit described connects the first incoming end and/or second incoming end of this illuminating module, for discharging the electrostatic at connected incoming end place.
Further, described light-emitting device also comprises earth terminal;
Each illuminating module comprises a static discharge unit, and the first end of this static discharge unit connects the first incoming end of this illuminating module, and the second end connects earth terminal;
Described light-emitting device also comprises a public static discharge unit, and the first end of described public static discharge unit connects the second incoming end of each illuminating module, and the second end connects earth terminal.
Further, each illuminating module comprises a static discharge unit, and the first end of this static discharge unit connects the second incoming end of this illuminating module, and the second end connects the first incoming end, for discharging the electrostatic at least one incoming end place.
Further, described static discharge unit is arranged on the outside of described luminescence unit.
Further, the static discharge unit that illuminating module described in each comprises comprises a unidirectional transient voltage suppressor; The positive pole of this unidirectional transient voltage suppressor connects the second end of described static discharge unit, the first end of static discharge unit belonging to negative pole connects; First incoming end of each illuminating module is negative pole incoming end, and the second incoming end is positive pole incoming end.
Further, the static discharge unit that illuminating module described in each comprises comprises a two-way transient voltage suppressor; One end of this two-way transient voltage suppressor connects the first end of affiliated static discharge unit, the second end of static discharge unit belonging to the other end connects.
Further, the static discharge unit that each illuminating module comprises comprises two unidirectional transient voltage suppressor; The positive pole of two unidirectional transient voltage suppressor is connected, the negative pole of one of them unidirectional transient voltage suppressor connects the first end of affiliated static discharge unit, and the negative pole of another unidirectional transient voltage suppressor connects the second end of affiliated static discharge unit.
Further, described base plate comprises dielectric layers and is clipped at least one conductor piece in described dielectric layers; The surface of the first direction of described conductor piece and the surface of second direction all have subregion to expose; Described first direction and second direction are contrary both direction, and described luminescence unit is positioned on the surface of the first direction of described base plate.
Further, the light direction of described luminescence unit is parallel to described base plate, and described conductor piece is positioned on the light direction of described luminescence unit.
Further, described luminescence unit comprises lighting electrode, and the light direction of described luminescence unit is described first direction; The surface of the first direction of described conductor piece is on the first direction on the surface of the first direction of the electrode of described luminescence unit.
Further, the material of described conductor piece is copper.
Further, described light-emitting device also comprises earth terminal; Described conductor piece is also connected with described earth terminal.
Further, the quantity of described conductor piece is multiple, and multiple described conductor piece is interconnected.
Further, the quantity of described conductor piece is multiple, and multiple described conductor piece is dispersed between each luminescence unit.
Second aspect, present invention also offers a kind of backlight, comprises the light-emitting device described in above-mentioned any one, also comprises backboard and interface unit, and described light-emitting device is connected on described backboard by described interface unit.
Further, described light-emitting device comprises conductor piece, and described interface unit is conductor connector part, and the described conductor piece in described light-emitting device is connected with to the ground structure in described backboard by described conductor connector part.
Further, described conductor connector part is two-sided conducting resinl.
In light-emitting device provided by the invention, each illuminating module comprises at least one static discharge unit, and this at least one static discharge unit connects the first incoming end and/or second incoming end of this illuminating module, for discharging the electrostatic at connected incoming end place.Due in actual applications, voltage incoming end, generally from voltage incoming end, is connected static discharge unit, can discharge the carrying out of electrostatic fast by the electrostatic of light-emitting device, raising antistatic effect.
Accompanying drawing explanation
The structural representation of a kind of light-emitting device that Fig. 1 provides for the embodiment of the present invention one;
The circuit structure diagram of a kind of light-emitting device that Fig. 2 provides for the embodiment of the present invention one;
The circuit structure diagram of a kind of light-emitting device that Fig. 3 provides for the embodiment of the present invention two;
The structural representation of a kind of light-emitting device that Fig. 4 provides for the embodiment of the present invention three;
The circuit structure diagram of a kind of light-emitting device that Fig. 5 provides for the embodiment of the present invention three;
The circuit structure diagram of a kind of light-emitting device that Fig. 6 provides for the embodiment of the present invention four;
The structural representation of a kind of light-emitting device that Fig. 7 provides for the embodiment of the present invention five.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, clear, complete description is carried out to the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Light-emitting device provided by the invention comprises base plate and is arranged at least one illuminating module on described base plate; Described illuminating module comprises the first incoming end, the second incoming end and multiple luminescence unit be connected between the first incoming end and the second incoming end; Each illuminating module also comprises at least one static discharge unit, and this at least one static discharge unit connects the first incoming end and/or second incoming end of this illuminating module, for discharging the electrostatic at connected incoming end place.Due in actual applications, incoming end, generally from incoming end place, is connected static discharge unit by the electrostatic of light-emitting device, can discharge fast, have higher antistatic effect to the carrying out of electrostatic.
In the specific implementation, here static discharge unit can suppress (Transient Voltage Suppressor for transient voltage, TVS) diode or TVS diode group, Zener or Zener combination or other there is the device of Electro-static Driven Comb function; Here luminescence unit can specifically refer to LED or other there is the device of lighting function, a corresponding illuminating module can think that multiple LED is cascaded the LED string obtained, and the first incoming end and the second incoming end can correspond to positive terminal and negative pole end.Here base plate can refer to the support of the printing board PCB before comprising dielectric layers and being clipped in dielectric layers in addition, and this support is for installing each LED.Be TVS diode or TVS diode group below with static discharge unit, luminescence unit is LED, base plate comprises dielectric layers and pcb board is described in detail to the structure of light-emitting device provided by the invention and operation principle.
Embodiment one
The light-emitting device that the embodiment of the present invention one provides as shown in Figure 1, can comprise base plate and 18 LED (being expressed as 1 in figure) be arranged on base plate and two TVS diode (being expressed as 2 in figure); This base plate comprises dielectric layers (only illustrate in figure be positioned at outside insulating barrier 3) and folder printing board PCB (not shown) in a insulating layer, has pad1, pad2 and pad3 tri-conductive pads be connected with PCB in golden finger area (being expressed as A in figure).
See Fig. 2,18 LED and two TVS diode form two illuminating module L1 and L2; Each illuminating module comprises a positive terminal P, negative pole end N and 9 is connected on LED between positive terminal P and negative pole end N; Each illuminating module also comprises a TVS diode, and this TVS diode is arranged on the outside of LED, independent of described LED, and the negative pole end N of illuminating module belonging to its positive pole connects, negative pole connects the positive terminal P of described illuminating module; The positive terminal P of the first illuminating module L1 connects pad1, negative pole end N and connects pad2; The positive terminal P of the second illuminating module L1 connects pad1, negative pole end N and connects pad3.
In the light-emitting device that the embodiment of the present invention provides, when the positive terminal P that electrostatic charge enters the first illuminating module L1 by pad1 causes the voltage of this positive terminal P to reach the breakdown voltage of TVS diode, what negative pole can be caused to be connected to the TVS diode of the positive terminal P of the first illuminating module L1 punctures conducting, electrostatic charge flows to the negative pole end N of the first illuminating module via TVS diode, this reduces the negative pole end N of the first illuminating module L1 and the pressure reduction of positive terminal P.The electrostatic from pad1 can be effectively avoided to puncture each LED from the direction of the positive terminal P of the first illuminating module L1.Accordingly, the TVS diode of the second illuminating module L2 also can effectively avoid the electrostatic from pad1 to puncture each LED from the direction of positive terminal P.
Be not difficult to find out, in embodiment one, the TVS pipe of each illuminating module forms the static discharge unit of this illuminating module.
In addition, in the embodiment of the present invention, because each TVS diode is independent of LED, and in prior art, Zener is encapsulated into compared with LED inside, can avoids being encapsulated into the light loss caused LED inside.
Embodiment two
The light-emitting device that the embodiment of the present invention two provides can be as shown in Figure 3, the light-emitting device provided with embodiment one unlike, this base plate is provided with 4 TVS diode, each illuminating module comprises two TVS diode, the positive pole of two TVS diode is connected, the negative pole of one of them TVS diode connects the positive terminal P of affiliated illuminating module, and the negative pole of another TVS diode connects the negative pole end N of affiliated illuminating module.
The light-emitting device that the embodiment of the present invention two provides, when electrostatic charge to be entered the positive terminal P of two illuminating module by pad1, what negative pole can be caused to be connected to the TVS diode of this positive terminal P punctures conducting, when electrostatic charge enters the negative pole end N of illuminating module by pad 2 (pad3), what negative pole can be caused to be connected to the TVS diode of this negative pole end N punctures conducting.Like this, be no matter electrostatic charge from which conductive pad, as long as it reaches corresponding breakdown voltage, the positive terminal P of corresponding illuminating module and negative pole end N all can be made through TVS diode conducting, the positive terminal P of illuminating module and the pressure reduction of negative pole end N are reduced, avoids puncturing of LED.
In the embodiment of the present invention two, the TVS pipe that two positive poles connect together forms a static discharge unit.
Embodiment three
The light-emitting device that the embodiment of the present invention three provides can be as shown in Figures 4 and 5, the light-emitting device provided with embodiment one unlike, this light-emitting device also comprises a conductive pad pad4 in golden finger area, and this conductive pad pad4 ground connection in use, uses as earth terminal; The positive pole of the TVS diode that each illuminating module comprises connects this conductive pad pad4, and negative pole still connects negative pole end N.In addition, this light-emitting device also comprises a public TVS diode (being expressed as 2 ' in figure), and the positive pole of this public TVS diode connects positive terminal P and the conductive pad pad1 of each illuminating module, and negative pole connects conductive pad pad4.
In the light-emitting device that the embodiment of the present invention three provides, what the electrostatic charge entering into each illuminating module positive terminal P through conductive pad pad1 can cause public TVS diode punctures conducting, electrostatic charge, through public TVS diode guiding earth terminal, avoids the overtension of positive terminal P; What the electrostatic charge entering into corresponding illuminating module negative pole end N through conductive pad pad2 or conductive pad pad3 can cause the TVS diode connecting this negative pole end N punctures conducting, avoids the overtension of the extreme N of respective negative.Like this, the overtension because of positive terminal or negative pole end just can be avoided to cause LED breakdown.
Understandable, make the positive terminal P of each illuminating module all connect a TVS diode and also can solve technical problem to be solved by this invention, corresponding technical scheme also should fall into protection scope of the present invention.
Understandablely be; for each illuminating module, a TVS diode is only set; the negative pole of this TVS diode is made to connect positive terminal or the negative pole end of this illuminating module; plus earth; also can part solution technical problem to be solved by this invention, corresponding technical scheme also should fall into protection scope of the present invention.
In the embodiment of the present invention three, the TVS pipe that two positive poles connect together forms a static discharge unit.
Embodiment four
The light-emitting device that the embodiment of the present invention three provides can be as shown in Figure 6, with embodiment three unlike, each illuminating module comprises two TVS diode, the positive pole of two TVS diode is connected, the negative pole of one of them TVS diode connects the negative pole end N of affiliated illuminating module, and the negative pole of another TVS diode connects conductive pad pad4.In addition, with embodiment three unlike, this light-emitting device comprises two public TVS diode, the positive pole of two TVS diode is connected, the negative pole of one of them TVS diode connects positive terminal P and the conductive pad pad1 of each illuminating module of affiliated illuminating module, and the negative pole of another TVS diode connects conductive pad pad4.
In the light-emitting device that the embodiment of the present invention four provides, positive terminal is connected to or between negative pole end and earth terminal after using two TVS diode reversal connections, when earth terminal have electric charge to add up to reach the breakdown voltage of the TVS diode being connected to earth terminal time, corresponding TVS diode conducting, electric charge flows to the negative pole end N of illuminating module through two TVS diode.This makes it possible to the overtension avoiding earth terminal, thus avoid the TVS diode being connected to illuminating module negative pole end N to be broken down by high-voltage.
In the embodiment of the present invention four, each TVS pipe forms a static discharge unit.Public TVS pipe forms static discharge unit.
It is to be noted; in embodiment two or embodiment four; the TVS diode that two positive poles are connected also can replace with a two-way TVS diode; corresponding technical scheme can reach the technique effect identical with the technical scheme comprising the TVS diode that two positive poles are connected, and also should fall into protection scope of the present invention.
Embodiment five
The light-emitting device that the embodiment of the present invention five provides can be as shown in Figure 7, with embodiment three unlike, this light-emitting device also comprises 18 the conductor piece pad 5 be clipped in dielectric layers, wherein 17 pad5 are dispersed between each LED on base plate, and a pad5 is positioned at the right side edge of this light-emitting device.The surface of the first direction of each conductor piece pad5 (in the figure 7, the surface of first direction here refers to perpendicular to the outside direction of base plate, as a reference, each LED is positioned on the surface of base plate first direction), the surface (inner surface, not shown) of the second direction contrary with first direction of each conductor piece pad5 also has at least region to expose.
Because the inner surface of each conductor piece also exposes, then can, by by the ground structure of each conductor piece electrical connection (such as using two-sided conducting resinl to connect) to backboard, the electric charge entering into light-emitting device from light guide plate direction be made to be directed to the earth.The anti-static ability of further raising light-emitting device.
Further, suppose the light direction of LED as depicted by the arrows in figure 7, parallel with described base plate, and upward, then now conductor piece can be arranged on the top of each LED, like this, when above-mentioned light-emitting device is applied in side-edge type backlight, light guide plate can be arranged on the top of LED, closer to each conductor piece pad5, first the electrostatic entering into this light-emitting device like this from light guide plate direction can be absorbed by each conductor piece pad5, and can not enter into the damage that LED causes each LED.
General, LED comprises lighting electrode and light emitting host (being generally LED chip), and lighting electrode is generally arranged on the surface of base plate, and light emitting host is attached on described base plate, is connected with described lighting electrode.When the light direction of LED is identical with first direction, can also making the outer surface of conductor piece, more outer than the outer surface of described LED electrode (namely the outer surface of conductor piece is on the first direction of the outer surface of the electrode of described LED, also be that the outer surface of conductor piece is on the light direction of the outer surface of the electrode of described LED), like this, when above-mentioned light-emitting device is applied in direct-light-type backlight, light guide plate can be arranged on the outside of LED, closer to each conductor piece pad5, first the electrostatic entering into this light-emitting device like this from light guide plate direction can be absorbed by each conductor piece pad5, and the damage that LED causes each LED can not be entered into.
On the other hand, in the embodiment of the present invention, because each conductor piece is interconnected, when a conductor piece is electrically connected to the ground structure of backboard, other conductor piece also can be connected to the ground structure of backboard accordingly, reduces the difficulty of the ground structure each conductor piece being connected to backboard.Certainly; in actual applications; make each conductor piece separate; and be electrically connected to the ground structure of backboard respectively; also can reach and make the electric charge entering into light-emitting device from light guide plate direction be directed to the earth to improve the technique effect of the anti-static ability of light-emitting device, corresponding technical scheme also should fall into protection scope of the present invention.
Again on the one hand, in the embodiment of the present invention five, each conductor piece is also arranged and is connected with conductive pad pad4, when each conductor piece fails to be electrically connected in the ground structure in backboard, the ground connection of each conductor piece can be ensured like this.Certainly in actual applications, each conductor piece can stable electrical be connected to the ground structure in backboard time, each conductor piece does not need to be connected with conductive pad pad4.
In addition, in actual applications, the electrode of LED generally can use glue package, even if the upper surface not arranging each conductor piece is like this higher than LED electrode, the electric charge being entered into light-emitting device by light guide plate direction also can not enter LED easily, and can preferentially be absorbed by exposed conductor piece.Can ensure, under the prerequisite that first electric charge entering into light-emitting device by light guide plate direction is absorbed by conductor piece, the upper surface of each conductor piece must do not needed higher than LED electrode.
In the specific implementation, the quantity of the conductor piece that base plate comprises also can be other quantity, and no matter set the quantity of conductor piece be how many, can discharge the electric charge in region corresponding to conductor piece.Corresponding technical scheme also should fall into protection scope of the present invention.
In a particular application, the material of conductor piece here can be copper.When specifically making, can etch in same technique with PCB.
It is pointed out that the conductive pad in the embodiment of the present invention five can be applied in embodiment one, embodiment two or the structure described in embodiment four equally, when being applied in the structure shown in embodiment one, each conductive pad does not connect earth terminal.
On the other hand, present invention also offers a kind of backlight, this backlight comprises the light-emitting device described in above-mentioned any one, also comprises backboard and interface unit.Described light-emitting device is connected on backboard by interface unit.
Backlight provided by the invention comprises the light-emitting device described in above-mentioned any one, can discharge fast, have higher antistatic effect to the carrying out of electrostatic.
In the specific implementation, interface unit here can be specially glue, adhesive tape etc.
Further, when the backboard that the light-emitting device that this backlight comprises provides for embodiment five, interface unit is here conductor connector part.Further, this conductor connector part comprises for two-sided conducting resinl.
The above, be only the specific embodiment of the present invention, but; protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses, the change that can expect easily or substitute, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (17)
1. a light-emitting device, is characterized in that, comprises base plate and is arranged at least one illuminating module on described base plate; Described illuminating module comprises the first incoming end, the second incoming end and multiple luminescence unit be connected between the first incoming end and the second incoming end; Each illuminating module also comprises at least one static discharge unit, and at least one static discharge unit described connects the first incoming end and/or second incoming end of this illuminating module, for discharging the electrostatic at connected incoming end place.
2. light-emitting device as claimed in claim 1, it is characterized in that, described light-emitting device also comprises earth terminal;
Each illuminating module comprises a static discharge unit, and the first end of this static discharge unit connects the first incoming end of this illuminating module, and the second end connects earth terminal;
Described light-emitting device also comprises a public static discharge unit, and the first end of described public static discharge unit connects the second incoming end of each illuminating module, and the second end connects earth terminal.
3. light-emitting device as claimed in claim 1, it is characterized in that, each illuminating module comprises a static discharge unit, and the first end of this static discharge unit connects the second incoming end of this illuminating module, second end connects the first incoming end, for discharging the electrostatic at least one incoming end place.
4. light-emitting device as claimed in claim 1, it is characterized in that, described static discharge unit is arranged on the outside of described luminescence unit.
5. the light-emitting device as described in any one of claim 1-3, is characterized in that, the static discharge unit that illuminating module described in each comprises comprises a unidirectional transient voltage suppressor; The positive pole of this unidirectional transient voltage suppressor connects the second end of affiliated static discharge unit, the first end of static discharge unit belonging to negative pole connects; First incoming end of each illuminating module is negative pole incoming end, and the second incoming end is positive pole incoming end.
6. the light-emitting device as described in any one of claim 1-3, is characterized in that, the static discharge unit that illuminating module described in each comprises comprises a two-way transient voltage suppressor; One end of this two-way transient voltage suppressor connects the first end of affiliated static discharge unit, the second end of static discharge unit belonging to the other end connects.
7. the light-emitting device as described in any one of claim 1-3, is characterized in that, the static discharge unit that each illuminating module comprises comprises two unidirectional transient voltage suppressor; The positive pole of two unidirectional transient voltage suppressor is connected, the negative pole of one of them unidirectional transient voltage suppressor connects the first end of affiliated static discharge unit, and the negative pole of another unidirectional transient voltage suppressor connects the second end of affiliated static discharge unit.
8. light-emitting device as claimed in claim 1, is characterized in that, described base plate comprises dielectric layers and is clipped at least one conductor piece in described dielectric layers; The surface of the first direction of described conductor piece and the surface of second direction all have subregion to expose; Described first direction and second direction are contrary both direction, and described luminescence unit is positioned on the surface of the first direction of described base plate.
9. light-emitting device as claimed in claim 8, it is characterized in that, the light direction of described luminescence unit is parallel to described base plate, and described conductor piece is positioned on the light direction of described luminescence unit.
10. light-emitting device as claimed in claim 8, it is characterized in that, described luminescence unit comprises lighting electrode, and the light direction of described luminescence unit is described first direction; The surface of the first direction of described conductor piece is on the first direction on the surface of the first direction of the electrode of described luminescence unit.
11. light-emitting devices as claimed in claim 8, is characterized in that, the material of described conductor piece is copper.
12. light-emitting devices as claimed in claim 8, it is characterized in that, described light-emitting device also comprises earth terminal; Described conductor piece is also connected with described earth terminal.
13. light-emitting devices as claimed in claim 8, is characterized in that, the quantity of described conductor piece is multiple, and multiple described conductor piece is interconnected.
14. light-emitting devices as claimed in claim 8, is characterized in that, the quantity of described conductor piece is multiple, and multiple described conductor piece is dispersed between each luminescence unit.
15. 1 kinds of backlights, is characterized in that, comprise the light-emitting device as described in any one of claim 1-14, also comprise backboard and interface unit, and described light-emitting device is connected on described backboard by described interface unit.
16. backlights as claimed in claim 15, it is characterized in that, described light-emitting device is the light-emitting device as described in any one of claim 8-14, described interface unit is conductor connector part, and the described conductor piece in described light-emitting device is connected with to the ground structure in described backboard by described conductor connector part.
17. backlights as claimed in claim 16, it is characterized in that, described conductor connector part is two-sided conducting resinl.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510179156.5A CN104864310A (en) | 2015-04-15 | 2015-04-15 | Light-emitting device and backlight |
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| CN201510179156.5A CN104864310A (en) | 2015-04-15 | 2015-04-15 | Light-emitting device and backlight |
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| CN105629602A (en) * | 2016-03-09 | 2016-06-01 | 深圳市华星光电技术有限公司 | Liquid crystal device |
| CN107132608A (en) * | 2017-05-31 | 2017-09-05 | 深圳市汇创达科技股份有限公司 | A kind of processing method of integrated guide optical mode group counterdie, guide-lighting module and counterdie |
| CN110706586A (en) * | 2019-03-25 | 2020-01-17 | 友达光电股份有限公司 | Backlight device and display device |
| CN112365796A (en) * | 2020-11-26 | 2021-02-12 | 京东方科技集团股份有限公司 | Backlight module and display device |
| US20220179267A1 (en) * | 2020-12-03 | 2022-06-09 | Chongqing Boe Optoelectronics Technology Co., Ltd. | Display Unit and Display Apparatus |
| CN115390310A (en) * | 2022-08-24 | 2022-11-25 | 广州华星光电半导体显示技术有限公司 | Backlight module, manufacturing method thereof and display device |
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