CN105782821A - LED (Light-Emitting diode), backlight module and display device - Google Patents
LED (Light-Emitting diode), backlight module and display device Download PDFInfo
- Publication number
- CN105782821A CN105782821A CN201610282491.2A CN201610282491A CN105782821A CN 105782821 A CN105782821 A CN 105782821A CN 201610282491 A CN201610282491 A CN 201610282491A CN 105782821 A CN105782821 A CN 105782821A
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- China
- Prior art keywords
- chipset
- emitting diode
- light emitting
- connection end
- power connection
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/0015—Fastening arrangements intended to retain light sources
- F21V19/002—Fastening arrangements intended to retain light sources the fastening means engaging the encapsulation or the packaging of the semiconductor device
-
- 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
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
Abstract
The invention provides an LED (Light-Emitting diode), a backlight module and a display device, and relates to the technical field of semiconductor devices. The service life of the LED is prolonged, and the light emitting efficiency is further improved. The LED comprises a first electric terminal, a second electric terminal and at least one circuit unit which is connected between the first electric terminal and the second electric terminal; the circuit unit comprises a first branch and a second branch which are connected in parallel; the first branch comprises a first chipset; the second branch comprises a second chipset; the anode of the first chipset and the cathode of the second chipset are connected with the first electric terminal; the cathode of the first chipset and the anode of the second chipset are connected with the second electric terminal; and each chipset comprises at least one electroluminescence chip. The invention is applicable to manufacture of LEDs and devices comprising the LEDs.
Description
Technical field
The present invention relates to technical field of semiconductor device, particularly relate to a kind of light emitting diode, backlight module and display device.
Background technology
LCD (LiquidCrystalDisplay, liquid crystal display) has been widely used for Display Technique field.LCD includes display floater and to parts such as the backlight modules of display floater offer light source, and wherein, the luminescent properties of backlight module directly influences display effect.
At present, backlight module many employings LED (Light-EmittingDiode, light emitting diode) is as light source.LCD all can be had a direct impact by the indices of LED, and wherein, the life-span of LED directly influences the life-span of LCD.Therefore, the life-span how increasing LED seems extremely important.
Summary of the invention
Embodiments of the invention provide a kind of light emitting diode, backlight module and display device, and this light emitting diode adds the life-span.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
On the one hand, it is provided that a kind of light emitting diode, this light emitting diode includes the first power connection end, the second power connection end, and at least one is connected to the circuit unit between described first power connection end and described second power connection end；Described circuit unit includes the first branch road and second branch road of parallel connection, described first branch road includes the first chipset, described second branch road includes the second chipset, wherein, the positive pole of described first chipset, described second chipset negative pole be connected with described first power connection end, the negative pole of described first chipset, described second chipset positive pole be connected with described second power connection end, each chipset includes at least one electroluminescent chip.
Optionally, in each branch road of described circuit unit, the luminous flux of described first chipset is identical with the luminous flux of described second chipset, and/or, in identical solid angle, the luminous intensity of described first chipset is identical with the luminous intensity of described second chipset.
Optionally, the glow color of described first chipset is identical with the glow color of described second chipset.
Optionally, described light emitting diode only includes a described circuit unit.
Optionally, each chipset only includes a described electroluminescent chip.
Optionally, described light emitting diode also includes: for encapsulating the encapsulation part of each described circuit unit, described first power connection end and described second power connection end are exposed to described encapsulation part.
Optionally, described encapsulation part includes: for supporting the housing of described circuit unit, and cover the clear layer of described circuit unit, in order to the light that described circuit unit sends can from described clear layer outgoing；Described first power connection end and described second power connection end are exposed to described housing.
Optionally, described light emitting diode also includes: being arranged in the circuit board of described encapsulation part, described circuit unit is located on described circuit board.
On the other hand, it is provided that a kind of backlight module, including the light emitting diode described in any of the above-described item.
Optionally, described backlight module also includes: provide the driving device of alternating current to described light emitting diode.
Another further aspect, it is provided that a kind of display device, including: the backlight module described in any of the above-described item.
The embodiment provides a kind of light emitting diode, backlight module and display device, in each circuit unit of this light emitting diode, the positive pole of the first chipset, the negative pole of the second chipset and the first power connection end are connected, the negative pole of the first chipset, the positive pole of the second chipset and the second power connection end are connected, so by the first power connection end, after second power connection end provides alternating current to light emitting diode, the first chipset on first branch road and the second chipset on the second branch road can replace luminescence, the life-span of this light emitting diode is the life-span sum of life-span of the first chipset and the second chipset, it is only a chip life-span compared to the life-span of light emitting diode of the prior art, the light emitting diode that the embodiment of the present invention provides adds the life-span.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of a kind of light emitting diode that Fig. 1 provides for the embodiment of the present invention；
The structural representation of the another kind of light emitting diode that Fig. 2 provides for the embodiment of the present invention；
The structural representation of another light emitting diode that Fig. 3 provides for the embodiment of the present invention；
The encapsulating structure schematic diagram of a kind of light emitting diode that Fig. 4 provides for the embodiment of the present invention；
The encapsulating structure schematic diagram of the another kind of light emitting diode that Fig. 5 provides for the embodiment of the present invention.
Accompanying drawing labelling:
1-the first power connection end；2-the second power connection end；3-circuit unit；31-the first chipset；32-the second chipset；4-electroluminescent chip；5-encapsulation part；51-housing；52-clear layer；6-circuit board.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
For the ease of knowing the technical scheme of the description embodiment of the present invention, in an embodiment of the present invention, have employed the printed words such as " first ", " second " function is made a distinction with the essentially identical identical entry of effect or similar item, it will be appreciated by those skilled in the art that quantity and execution order are not defined by the printed words such as " first ", " second ".
Embodiment one
Embodiments providing a kind of light emitting diode, with reference to shown in Fig. 1, this light emitting diode includes first power connection end the 1, second power connection end 2, and at least one is connected to the circuit unit 3 between the first power connection end 1 and the second power connection end 2；Circuit unit 3 includes the first branch road and second branch road of parallel connection, first branch road includes the first chipset 31, second branch road includes the second chipset 32, wherein, the positive pole of the first chipset 31, the negative pole of the second chipset 32 and the first power connection end 1 are connected, 31 negative poles of the first chipset, the positive pole of the second chipset 32 and the second power connection end 2 are connected, and each chipset includes at least one electroluminescent chip 4.
Embodiments of the invention are not construed as limiting for the quantity of the circuit unit that above-mentioned light emitting diode includes, example, above-mentioned light emitting diode can be only include a circuit unit as shown in Figure 1, can also is that and include two circuit units as shown in Figure 2, or can also is that including multiple circuit unit such as includes three circuit units shown in Fig. 3.Consider Cost Problems, embodiments of the invention preferably light emitting diode as shown in Figure 1.
A branch road in embodiments of the invention refers to: single electroluminescent chip or several electroluminescent chip-in series constitute a branch of circuit, and the combination of the electroluminescent chip on each branch road is called a chipset.The quantity of the electroluminescent chip included for above-mentioned each chipset is not construed as limiting, example, above-mentioned each chipset can be that the first chipset 31 only includes an electroluminescent chip 4 as shown in Figure 1, can also is that the first chipset 31 as shown in Figure 2 includes the electroluminescent chip 4 of two series connection, or can also is that the electroluminescent chip the including multiple series connection such as electroluminescent chip including three series connection shown in Fig. 3.Being not construed as limiting it addition, whether the quantity of electroluminescent chip that includes for different chipsets of embodiments of the invention is identical, example, as it is shown in figure 1, the first chipset 31 and the second chipset 32 can all include an electroluminescent chip 4；As it is shown on figure 3, the first chipset 31 and the second chipset 32 can all include three electroluminescent chips 4；Or, as in figure 2 it is shown, the first chipset 31 includes the electroluminescent chip 4 of two series connection, the second chipset 32 includes an electroluminescent chip 4.Certainly can also is that other situations, repeat no more here.Consider reduce cost and simplify structure, it is possible to select the first chipset and the second chipset to include the electroluminescent chip of equal number.Each chipset shown in the preferred Fig. 1 of the embodiment of the present invention all includes an electroluminescent chip.It addition, embodiments of the invention are not construed as limiting for whether the specification of above-mentioned each electroluminescent chip is identical, for the ease of making, it is possible to select the chip that specification is all identical.
The following describes positive pole and negative pole how to determine each chipset.Those skilled in the art can be known according to prior art: above-mentioned each electroluminescent chip has positive pole and negative pole.The positive pole of each chipset and negative pole are only determined by being positioned at outermost electroluminescent chip in this chipset.Example, if the first chipset only includes an electroluminescent chip, with reference to shown in Fig. 1, then the positive pole of the first chipset, the negative pole respectively positive pole of this electroluminescent chip, negative pole.If the first chipset includes two electroluminescent chips, (for the ease of explanation shown in reference Fig. 2, two electroluminescent chips are represented with a, b respectively), then in just extremely Fig. 2 of the first chipset, the positive pole of electroluminescent chip a, its negative pole are the negative pole of electroluminescent chip b in Fig. 2.If the first chipset includes three electroluminescent chips, (for the ease of explanation shown in reference Fig. 3, three electroluminescent chips are represented with c, d, e respectively), then in just extremely Fig. 3 of the first chipset, the positive pole of electroluminescent chip c, its negative pole are the negative pole of electroluminescent chip e in Fig. 3.
The embodiment provides a kind of light emitting diode, backlight module and display device, in each circuit unit of this light emitting diode, the positive pole of the first chipset, the negative pole of the second chipset and the first power connection end are connected, the negative pole of the first chipset, the positive pole of the second chipset and the second power connection end are connected, so by the first power connection end, after second power connection end provides alternating current to light emitting diode, first chipset of the first branch road and the second chipset of the second branch road can replace luminescence, the life-span of this light emitting diode is the life-span sum of life-span of the first chipset and the second chipset, it is only a chip life-span compared to the life-span of light emitting diode of the prior art, light emitting diode provided by the invention adds the life-span, and then improve luminous efficiency.Example, with reference to shown in Fig. 1, first chipset 31 of the first branch road 31 and the second chipset 32 of the second branch road 32 only include an electroluminescent chip 4, if the life-span of this chip is 30000h, then two chips (same standard chip) of the light emitting diode shown in Fig. 1 alternately luminescence, the life-span of light emitting diode can be increased to 60000h, be doubled than the life-span of the light emitting diode only with a chip.
In order to ensure luminous mass, the first chipset and the second chipset is avoided to occur that flicker is different with light and shade when alternately luminescence, preferably, in each branch road of foregoing circuit unit, the luminous flux of the first chipset and the luminous flux of the second chipset are identical, and/or, in identical solid angle, the luminous intensity of the first chipset is identical with the luminous intensity of the second chipset.
In order to ensure that above-mentioned light emitting diode can provide the light source that solid colour, illumination effect are good, it is preferred that the glow color of the first chipset and the glow color of the second chipset are identical.
It should be noted that, when using this light emitting diode, in order to avoid human eye experiences the scintillation that the first chipset and the second chipset occur when alternately luminescence, the frequency improving the first chipset and the alternately luminescence of the second chipset can be passed through so that alt time persists the time less than human eye vision.
Optionally, with reference to shown in Fig. 1, light emitting diode only includes a circuit unit 3, so can ensure that while increasing the life-span, reduces cost and Simplified flowsheet as much as possible.
Optionally, with reference to shown in Fig. 1, each chipset only includes an electroluminescent chip 4, so can ensure that while increasing the life-span, reduces cost and Simplified flowsheet as much as possible.
Optionally, with reference to shown in Fig. 4, light emitting diode also includes: for encapsulating the encapsulation part 5 of each circuit unit 3, the first power connection end 1 and the second power connection end 2 are exposed to encapsulation part 5.
Optionally, with reference to shown in Fig. 4, encapsulation part 5 includes: for supporting the housing 51 of circuit unit 3, and cover the clear layer 52 of circuit unit 3, in order to the light that circuit unit 3 sends can from clear layer 52 outgoing；First power connection end 1 and the second power connection end 2 are exposed to housing 51.This simple in construction easily realizes.Here the material for clear layer is not construed as limiting, example, it is possible to be formed by transparent adhesive tape.
Optionally, light emitting diode also includes: be arranged in the circuit board of encapsulation part, and circuit unit sets on circuit boards, is so conducive to the setting of electroluminescent chip and cabling.Here circuit board particular location in encapsulation part and structure are not construed as limiting, determine with specific reference to practical situation.If encapsulation part is the structure shown in Fig. 4, then, with reference to shown in Fig. 5, circuit board 6 can be arranged between housing 51 and circuit unit 3, certainly can also is that other structures, only illustrates as example here.
Embodiment two
Embodiments provide a kind of backlight module, including: the light emitting diode that embodiment one provides.This backlight module life-span is long, good luminous performance.
Optionally, this backlight module can also include: provide the driving device of alternating current to light emitting diode, thus driven for emitting lights LED lighting better.Here the concrete structure for driving device is not construed as limiting, and specifically can determine according to practical situation, example, and this driving device can be the components and parts such as transformator.
Embodiment three
Embodiments provide a kind of display device, including: the backlight module that embodiment two provides.This display device can be arbitrarily need the display device of backlight, for instance can be liquid crystal display and includes any product with display function or the parts such as the TV of liquid crystal display, digital camera, mobile phone, panel computer.This display device has the advantages that life-span length, display performance are excellent.
The above; being only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; change can be readily occurred in or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (11)
1. a light emitting diode, it is characterised in that include the first power connection end, the second power connection end, and at least one is connected to the circuit unit between described first power connection end and described second power connection end；Described circuit unit includes the first branch road and second branch road of parallel connection, described first branch road includes the first chipset, described second branch road includes the second chipset, wherein, the positive pole of described first chipset, described second chipset negative pole be connected with described first power connection end, the negative pole of described first chipset, described second chipset positive pole be connected with described second power connection end, each chipset includes at least one electroluminescent chip.
2. light emitting diode according to claim 1, it is characterized in that, the luminous flux of described first chipset is identical with the luminous flux of described second chipset, and/or, in identical solid angle, the luminous intensity of described first chipset is identical with the luminous intensity of described second chipset.
3. light emitting diode according to claim 1, it is characterised in that the glow color of described first chipset is identical with the glow color of described second chipset.
4. light emitting diode according to claim 1, it is characterised in that described light emitting diode only includes a described circuit unit.
5. the light emitting diode according to any one of claim 1-4, it is characterised in that each chipset only includes a described electroluminescent chip.
6. light emitting diode according to claim 1, it is characterised in that described light emitting diode also includes: for encapsulating the encapsulation part of each described circuit unit, described first power connection end and described second power connection end are exposed to described encapsulation part.
7. light emitting diode according to claim 6, described encapsulation part includes: for supporting the housing of described circuit unit, and cover the clear layer of described circuit unit, in order to the light that described circuit unit sends can from described clear layer outgoing；Described first power connection end and described second power connection end are exposed to described housing.
8. light emitting diode according to claim 6, described light emitting diode also includes: being arranged in the circuit board of described encapsulation part, described circuit unit is located on described circuit board.
9. a backlight module, it is characterised in that including: the light emitting diode described in any one of claim 1-8.
10. backlight module according to claim 9, it is characterised in that described backlight module also includes: the driving device of alternating current is provided to described light emitting diode.
11. a display device, it is characterised in that including: the backlight module described in claim 9 or 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610282491.2A CN105782821A (en) | 2016-04-29 | 2016-04-29 | LED (Light-Emitting diode), backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610282491.2A CN105782821A (en) | 2016-04-29 | 2016-04-29 | LED (Light-Emitting diode), backlight module and display device |
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| Publication Number | Publication Date |
|---|---|
| CN105782821A true CN105782821A (en) | 2016-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610282491.2A Pending CN105782821A (en) | 2016-04-29 | 2016-04-29 | LED (Light-Emitting diode), backlight module and display device |
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| CN (1) | CN105782821A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115621404A (en) * | 2022-11-01 | 2023-01-17 | 东莞市冠擎智能照明科技有限公司 | LED conductive structure without electric polarity separation, LED packaging body and light-emitting device |
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| US20120119238A1 (en) * | 2010-11-17 | 2012-05-17 | Forward Electronics Co., Ltd. | LED package structure |
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| CN1750277A (en) * | 2004-09-15 | 2006-03-22 | 财团法人工业技术研究院 | Light emitting diode grain structure with AC loop |
| US20100006868A1 (en) * | 2005-05-13 | 2010-01-14 | Industrial Technology Research Institute | AC LED device and method for fabricating the same |
| CN1971907A (en) * | 2005-11-25 | 2007-05-30 | 比亚迪股份有限公司 | A side-lighting LED illumination lamp, illuminating method of backlight source and mobile phone |
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Application publication date: 20160720 |