CN102434857A - LED (Light-Emitting Diode) lamp panel and manufacturing method thereof - Google Patents
LED (Light-Emitting Diode) lamp panel and manufacturing method thereof Download PDFInfo
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- CN102434857A CN102434857A CN2011104407314A CN201110440731A CN102434857A CN 102434857 A CN102434857 A CN 102434857A CN 2011104407314 A CN2011104407314 A CN 2011104407314A CN 201110440731 A CN201110440731 A CN 201110440731A CN 102434857 A CN102434857 A CN 102434857A
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Abstract
The invention provides an LED (Light-Emitting Diode) lamp panel and a manufacturing method thereof. The method comprises the following steps of: forming an electric conduction trace on a printed circuit board to partition the printed circuit board into a plurality of first LED lamp installation strips arranged side by side and a plurality of second LED lamp installation strips arranged together with the first LED lamp installation strips at intervals; arranging LED lamps on the first LED lamp installation strips and the second LED lamp installation strips; and cutting the printed circuit board into two independent lamp panels.
Description
[technical field]
The invention relates to field of liquid crystal display, particularly about the structure of LED lamp plate in the LCD screen backlight module and the improvement of manufacturing approach thereof.
[background technology]
In display screens such as LCD TV, computer liquid crystal display screen; A module backlight that light source is provided need be set usually; Traditional module backlight is to adopt cold-cathode tube as back light; Characteristics such as present low-power consumption because of the LED lamp, lower calorific value, brightness is high, the life-span is long, module backlight gradually adopts the LED lamp as back light.
Traditional LED-backlit module is a plurality of LED lamps to be set serve as light source on a lamp bar, in existing LCD TV backlight field; Traditional LED-backlit all is to adopt single lamp bar, form the backlight of whole screen, often need paste single lamp bar one by one; Form many rows lamp bar side by side, come for whole screen provides back light, and; Existing module backlight is that LED constant-current driving and LED lamp bar are separated, and driving is made in the lamp plate outside, with lead LED constant-current driving and LED lamp bar is coupled together again; Each bar lamp bar need be prepared a connector and is connected with each constant-current driving through lead like this, and circuit is more, and cost is higher.
In addition, though existing many LED lamp bars add man-hour can many processing simultaneously, and then cut into wall scroll.But existing LED lamp plate because need certain at interval distance between per two LED lamp bars, guarantees the irradiating angle of light etc.Therefore add the waste of the circuit board formation material between the every LED lamp bar in man-hour, cost is higher.
Therefore be necessary existing LED lamp plate is improved, to overcome aforesaid defective.
[summary of the invention]
The object of the present invention is to provide a kind of manufacturing approach of LED lamp plate, it can save manufacturing cost.
Another object of the present invention is to provide a kind of LED lamp plate, its compact conformation is pasted easily, and cost is lower.
For reaching aforementioned purpose, the present invention provides a kind of LED lamp plate and manufacturing approach thereof, and said LED lamp plate manufacturing approach comprises:
One printed circuit board is provided; Its conductive traces is distinguished into some LED lamp mounting bars that are arranged side by side with printed circuit board (PCB); And with some the 2nd LED lamp mounting bars that are arranged side by side of a said LED lamp mounting bar space; One end of wherein said some articles the one LED lamp mounting bars interconnects, and the relative other end of said some articles the 2nd LED lamp mounting bars interconnects;
The LED lamp is installed on a LED lamp mounting bar of said printed circuit board (PCB), is formed some articles the one LED lamp bars, the LED lamp is installed on the 2nd LED lamp mounting bar of said printed circuit board (PCB), form some articles the 2nd LED lamp bars;
Said the 2nd a LED lamp bar and a LED lamp bar are separated from each other, form two LED lamp plates.
Further, in the step that the LED lamp is installed, it also is included in the step that the LED lamp drive circuit is set on the connecting plate that connects said LED lamp bar.
According to one embodiment of present invention, the LED lamp of said every LED lamp bar is one group of LED lamp of connecting each other.
According to one embodiment of present invention, said every LED lamp bar comprises two groups of LED lamps parallel with one another, and wherein the LED lamp in every group is connected each other, two groups of LED lamps parallel with one another, and one group the LED lamp and the LED lamp of another group are provided with at interval.
According to one embodiment of present invention, the LED lamp of interval some is parallel with a Zener diode on the branch road of every group of LED lamp on every LED lamp bar.
For reaching aforementioned another purpose; A kind of LED lamp plate of the present invention, it comprises some printed circuit board (PCB)s, some LED lamps is installed on every printed circuit board (PCB) forms LED lamp bar; One end of every LED lamp bar connects through connecting plate, forms the clearance space of hollow out between per two LED lamp bars.
According to one embodiment of present invention, the LED lamp of said every LED lamp bar is one group of LED lamp of connecting each other.
According to one embodiment of present invention, said every LED lamp bar comprises two groups of LED lamps parallel with one another, and wherein the LED lamp in every group is connected each other, two groups of LED lamps parallel with one another, and one group the LED lamp and the LED lamp of another group are provided with at interval.
According to one embodiment of present invention, the LED lamp of interval some is parallel with a Zener diode on the branch road of every group of LED lamp on every LED lamp bar.
According to one embodiment of present invention, the connecting plate that connects some LED lamp bars is provided with the drive circuit of driving LED lamp, and said led drive circuit is driver circuits for integrated circuit or discrete device drive circuit.
LED lamp plate of the present invention can be put in order plate after the lamp plate cutting and directly use, and has avoided needing the situation that the lamp bar mounts one by one in the prior art, can practice thrift man-hour and cost.Whole PCB adopts the cross complementary formula to arrange, and LED drives and is placed on the PCB two ends, has made full use of the PCB material, practices thrift cost.And the present invention directly has been made in the constant-current driving of LED lamp on the lamp plate, saved the line between constant-current driving and the lamp bar, and easy to operate, cost reduces.And LED lamp bar of the present invention can be the parallel connections of two groups of lamps, and adopts complementary at interval mode of arranging, when single lamp breaks down; The lamp of its both sides is in proper working order, does not influence whole illumination effect, and the LED lamp of every interval some can be provided with a Zener diode; When one of them LED lamp failure; Zener diode work, whole piece LED lamp still can be worked, and can guarantee illumination effect.
[description of drawings]
Fig. 1 is the structural representation of LED lamp plate of the present invention.
Fig. 2 is wherein a kind of arrangement mode sketch map of the LED lamp of LED lamp plate of the present invention.
Fig. 3 is the another kind of arrangement mode sketch map of LED of LED lamp plate of the present invention etc.
Fig. 4 is the sketch map of the embodiment that Zener diode is set of LED lamp plate of the present invention.
Fig. 5 is the manufacturing approach flow chart of LED lamp plate of the present invention.
Fig. 6 is the part-structure sketch map of the printed circuit board (PCB) of LED lamp plate of the present invention.
Fig. 7 is the structural representation of LED lamp plate of the present invention when not cutting.
Fig. 8 is the structural representation after the LED lamp plate cutting of the present invention.
[specific embodiment]
Alleged here " embodiment " or " embodiment " are meant special characteristic, structure or the characteristic that can be contained at least one implementation of the present invention.Different in this manual local " in one embodiment " that occur not are all to refer to same embodiment, neither be independent or optionally mutually exclusive with other embodiment embodiment.
See also shown in Figure 1ly, it shows the structural representation of LED lamp plate of the present invention.Shown in figure; LED lamp plate 100 of the present invention is to be formed by the printed circuit board (PCB) cutting; It comprises some LED lamp bars 1; Every LED lamp bar 1 comprises rectangular strip printed circuit board (PCB) 11 and is installed on the LED lamp 12 on the printed circuit board (PCB) 11, and an end of every LED lamp bar links together through connecting plate 13, between per two LED lamp bars because the reason of cutting forms the clearance space 14 of hollow out.Wherein at the integrated constant-current drive circuit 15 that drives the LED lamp on every LED lamp bar that is provided with on the connecting plate that connects every LED lamp bar.
See also shown in Figure 2ly, it shows a kind of arrangement mode of LED lamp in wherein LED lamp bar of LED lamp plate of the present invention.As shown in Figure 2, in one embodiment of the invention, the arrangement mode that the LED lamp 12 on every LED lamp bar can adopt one group of LED lamp to connect each other; In this arrangement mode, because all the LED lamps 12 in every LED lamp bar connect each other, when one of them LED lamp breaks down; Other LED lamps of then whole lamp bar also can't be lighted; For avoiding this situation, can be in certain embodiments to Zener diode 16 of each LED lamp parallel connection, like this when certain LED lamp failure; Zener diode 16 work can not influence other LED lamps on the same lamp bar.But start from the consideration of cost and probability of malfunction, preferably Zener diodes 16 of several LED lamp 12 parallel connections of interval.Concrete quantity at interval can be come fixed according to the actual requirements.
See also shown in Figure 3ly, it shows other a kind of arrangement mode of LED lamp 12 in wherein LED lamp bar of LED lamp plate of the present invention, is to guarantee lighting effect, and the LED lamp 12 on the whole piece LED lamp bar is one group of series connection equally, but per two lamps 12 are mutual reverse.
See also shown in Figure 4ly, it shows another arrangement mode of LED lamp 12 in wherein LED lamp bar of LED lamp plate of the present invention, because the mode of a whole group series connection of lamp strip adoption; A LED lamp failure may appear; The situation that causes whole lamp bar to light, though can solve through the parallel voltage-stabilizing diode, Zener diode takes up room and can't be luminous; Influence whole structure; Therefore can adopt the LED lamp groups of two groups of parallel connections of every lamp strip adoption shown in Figure 4, when wherein one group when breaking down, another group still can be worked.And for guaranteeing uniformity of light, can be that arrange LED lamp 12 spaces in the LED lamp group of two groups of parallel connections, when one group of LED lamp failure wherein, it is uniform that the light of another group remains like this.Certainly in other embodiments, also can adopt the parallel connection of three groups of LED lamps, perhaps four groups, five groups, the mode of more group parallel connections, whether concrete several groups of parallel connections can make things convenient for according to arranging of specific requirement and printed circuit board (PCB) and decide.
See also shown in Figure 5ly, it shows the manufacturing approach flow chart of LED lamp plate of the present invention.As shown in Figure 5, the manufacturing approach of LED lamp plate of the present invention comprises the steps:
Step S1 a: printed circuit board (pcb board) at first is provided; On printed circuit board (PCB) 11, be preset with the conductive traces 111 that is used to install LED lamp and drive circuit; As shown in Figure 6; The conductive traces 111 that is preset on the printed circuit board (PCB) is divided into some LED lamp mounting bars 112 that are arranged side by side with printed circuit board (PCB) 11; And with some the 2nd LED lamp mounting bars 113 that are arranged side by side of a said LED lamp mounting bar 112 spaces, an end of wherein said some articles the one LED lamp mounting bars 112 interconnects, the relative other end of said some articles the 2nd LED lamp mounting bars 113 interconnects; Whole printed circuit board (PCB) 11 is divided into two E font structures that intersection is relative.
Step S2: the LED lamp is installed on printed circuit board (PCB).The LED lamp can paste on the conductive traces of printed circuit board (PCB) through surperficial technology for applying correspondence.As shown in Figure 7, LED lamp 12 is installed on a LED lamp mounting bar 112 of said printed circuit board (PCB), form some articles the one LED lamp bars 1, LED lamp 12 is installed on the 2nd LED lamp mounting bar 113 of said printed circuit board (PCB), form some articles the 2nd LED lamp bars 2.
Step S3: led drive circuit 15 is installed on printed circuit board (PCB).See also shown in Figure 7ly, said led drive circuit peace 15 is loaded on the connecting plate 13 of every LED lamp of connection bar of printed circuit board (PCB) both sides.In one embodiment of the invention, said led drive circuit 15 can be an integrated constant-current driven chip, and its correspondence is welded on the conductive traces on the printed circuit board (PCB), can several the shared drive circuits of LED lamp bar.In other embodiments, said drive circuit 15 also can be to adopt discrete device to be welded on the said printed circuit board (PCB) to form drive circuit.
In the aforementioned embodiment; The drive circuit of LED lamp plate of the present invention is integrated on the printed circuit board (PCB), in other embodiments, and also integrated drive electronics on printed circuit board (PCB) not; Only socket is set on printed circuit board (PCB), the form that connects external driving through connector is come the driving LED lamp.
Step S4: cutting printing circuit board forms two independent lamp plates.See also shown in Figure 7ly, promptly form a monoblock lamp plate after having welded LED lamp 12 and drive circuit 15.Of aforementioned background art, when being installed on lamp plate in the module backlight, for guaranteeing the irradiating angle and the lighting effect of light; Therefore necessary certain at interval distance need cut the monoblock lamp plate between the lamp bar, as shown in Figure 8; The one LED lamp bar 1 is separated with the 2nd LED lamp bar 2; Form two independent lamp plates 100,200, so every LED lamp bar 1, form the clearance space of hollow out between 2, just in time satisfy the requirement of lamp plate.
Be transportation and convenient for storing; Also can be temporarily when making cutting printing circuit board not;, cuts again lamp plate when being assembled in module backlight; Can between every adjacent LED lamp bar 1 and the 2nd LED lamp bar 2, cut a part earlier like this, form the stamp hole of similar stamp toothed edge between a LED lamp bar 1 and the 2nd LED lamp bar 2, when being assembled in module backlight, again two lamp plates separated.
LED lamp plate of the present invention can be put in order plate after the lamp plate cutting and directly use, and has avoided needing the situation that the lamp bar mounts one by one in the prior art, can practice thrift man-hour and cost.Whole PCB adopts the cross complementary formula to arrange, and LED drives and is placed on the PCB two ends, has made full use of the PCB material, practices thrift cost.And the present invention directly has been made in the constant-current driving of LED lamp on the lamp plate, saved the line between constant-current driving and the lamp bar, and easy to operate, cost reduces.And LED lamp bar of the present invention can be the parallel connections of two groups of lamps, and adopts complementary at interval mode of arranging, when single lamp breaks down; The lamp of its both sides is in proper working order, does not influence whole illumination effect, and the LED lamp of every interval some can be provided with a Zener diode; When one of them LED lamp failure; Zener diode work, whole piece LED lamp still can be worked, and can guarantee illumination effect.
Above-mentioned explanation has fully disclosed the specific embodiment of the present invention.It is pointed out that any change that technical staff's specific embodiments of the invention of being familiar with this field is done does not all break away from the scope of claims of the present invention.Correspondingly, the scope of claim of the present invention also is not limited only to previous embodiment.
Claims (10)
1. LED lamp plate and manufacturing approach thereof, said LED lamp plate manufacturing approach comprises:
One printed circuit board is provided; Its conductive traces is distinguished into some LED lamp mounting bars that are arranged side by side with printed circuit board (PCB); And with some the 2nd LED lamp mounting bars that are arranged side by side of a said LED lamp mounting bar space; One end of wherein said some articles the one LED lamp mounting bars interconnects, and the relative other end of said some articles the 2nd LED lamp mounting bars interconnects;
The LED lamp is installed on a LED lamp mounting bar of said printed circuit board (PCB), is formed some articles the one LED lamp bars, the LED lamp is installed on the 2nd LED lamp mounting bar of said printed circuit board (PCB), form some articles the 2nd LED lamp bars;
Said the 2nd a LED lamp bar and a LED lamp bar are separated from each other, form two LED lamp plates.
2. the method for claim 1 is characterized in that: in the step that the LED lamp is installed, it also is included in the step that the LED lamp drive circuit is set on the connecting plate that connects said LED lamp bar.
3. the method for claim 1 is characterized in that: the one group LED lamp of the LED lamp of said every LED lamp bar for connecting each other.
4. the method for claim 1, it is characterized in that: said every LED lamp bar comprises two groups of LED lamps parallel with one another, wherein the LED lamp in every group is connected each other, two groups of LED lamps parallel with one another, one group the LED lamp and the LED lamp of another group are provided with at interval.
5. like claim 3 or 4 described methods, it is characterized in that: the LED lamp of some is parallel with a Zener diode at interval on the branch road of every group of LED lamp on every LED lamp bar.
6. LED lamp plate, it comprises some printed circuit board (PCB)s, some LED lamps is installed on every printed circuit board (PCB) forms LED lamp bars, an end of every LED lamp bar connects through connecting plate, forms the clearance space of hollow out between per two LED lamp bars.
7. LED lamp plate as claimed in claim 1 is characterized in that: the one group LED lamp of the LED lamp of said every LED lamp bar for connecting each other.
8. LED lamp plate as claimed in claim 1; It is characterized in that: said every LED lamp bar comprises two groups of LED lamps parallel with one another; Wherein the LED lamp in every group is connected each other, two groups of LED lamps parallel with one another, and one group the LED lamp and the LED lamp of another group are provided with at interval.
9. like claim 7 or 8 described LED lamp plates, it is characterized in that: the LED lamp of some is parallel with a Zener diode at interval on the branch road of every group of LED lamp on every LED lamp bar.
10. LED lamp plate as claimed in claim 6 is characterized in that: the connecting plate that connects some LED lamp bars is provided with the drive circuit of driving LED lamp, and said led drive circuit is driver circuits for integrated circuit or discrete device drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104407314A CN102434857A (en) | 2011-12-26 | 2011-12-26 | LED (Light-Emitting Diode) lamp panel and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104407314A CN102434857A (en) | 2011-12-26 | 2011-12-26 | LED (Light-Emitting Diode) lamp panel and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN102434857A true CN102434857A (en) | 2012-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104407314A Pending CN102434857A (en) | 2011-12-26 | 2011-12-26 | LED (Light-Emitting Diode) lamp panel and manufacturing method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734707A (en) * | 2012-06-01 | 2012-10-17 | 苏州东山精密制造股份有限公司 | Method for manufacturing backlight module and double-sided adhesive for fixing same |
| CN103542385A (en) * | 2013-10-30 | 2014-01-29 | 林健 | Comb-shaped LED lamp circuit layout |
| US9538594B2 (en) | 2012-10-11 | 2017-01-03 | Lextar Electronics Corporation | Lamp |
| CN108364580A (en) * | 2018-02-24 | 2018-08-03 | 深圳市豪胜电子有限公司 | The display device for mounting on vehicle that high definition is energy saving and structure is frivolous |
| CN116772131A (en) * | 2023-06-26 | 2023-09-19 | 惠科股份有限公司 | Lamp panel, manufacturing method of lamp panel and display device |
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| US20080211987A1 (en) * | 2006-09-26 | 2008-09-04 | Lg Electronics, Inc. | Lighting device, backlight unit, and printed circuit board thereof |
| CN201170507Y (en) * | 2008-03-24 | 2008-12-24 | 万亚工程有限公司 | LED light pipe |
| CN201402802Y (en) * | 2009-05-12 | 2010-02-10 | 李洲科技股份有限公司 | Substrate for setting light emitting diode |
| CN201954342U (en) * | 2011-03-18 | 2011-08-31 | 邵帅 | General LED lamp panel |
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Patent Citations (5)
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| CN2676022Y (en) * | 2004-01-09 | 2005-02-02 | 深圳市沃科半导体照明有限公司 | Ground embedded lamp |
| US20080211987A1 (en) * | 2006-09-26 | 2008-09-04 | Lg Electronics, Inc. | Lighting device, backlight unit, and printed circuit board thereof |
| CN201170507Y (en) * | 2008-03-24 | 2008-12-24 | 万亚工程有限公司 | LED light pipe |
| CN201402802Y (en) * | 2009-05-12 | 2010-02-10 | 李洲科技股份有限公司 | Substrate for setting light emitting diode |
| CN201954342U (en) * | 2011-03-18 | 2011-08-31 | 邵帅 | General LED lamp panel |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734707A (en) * | 2012-06-01 | 2012-10-17 | 苏州东山精密制造股份有限公司 | Method for manufacturing backlight module and double-sided adhesive for fixing same |
| US9538594B2 (en) | 2012-10-11 | 2017-01-03 | Lextar Electronics Corporation | Lamp |
| CN103542385A (en) * | 2013-10-30 | 2014-01-29 | 林健 | Comb-shaped LED lamp circuit layout |
| CN108364580A (en) * | 2018-02-24 | 2018-08-03 | 深圳市豪胜电子有限公司 | The display device for mounting on vehicle that high definition is energy saving and structure is frivolous |
| CN116772131A (en) * | 2023-06-26 | 2023-09-19 | 惠科股份有限公司 | Lamp panel, manufacturing method of lamp panel and display device |
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Application publication date: 20120502 |
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