CN201028321Y - LED light source device with LED connected in a special mode - Google Patents
LED light source device with LED connected in a special mode Download PDFInfo
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- CN201028321Y CN201028321Y CNU2006200496597U CN200620049659U CN201028321Y CN 201028321 Y CN201028321 Y CN 201028321Y CN U2006200496597 U CNU2006200496597 U CN U2006200496597U CN 200620049659 U CN200620049659 U CN 200620049659U CN 201028321 Y CN201028321 Y CN 201028321Y
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- 238000010586 diagram Methods 0.000 description 9
- 238000009792 diffusion process Methods 0.000 description 6
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012769 display material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 201000009310 astigmatism Diseases 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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Abstract
The utility model relates to a LED power source which is electrically connected with a LED in a particular way. The non-neighboring sub units which consist of one or a plurality of LEDs are connected with each other in parallel in a particular grouping way and connecting way, so that each sub unit of the same LED sub unit bunch is neighboring with the sub unit of other LED sub unit bunch, thereby the LED of the LED sub unit bunch which is positioned around all the LED sub unit of the LED sub unit bunch still lights, which compensates the brightness loss caused by the LED which can not light, thereby vastly increasing the reliability of the system.
Description
Technical field
The utility model relates to a kind of led light source device, relates in particular to a kind of led light source device that adopts particular form to be electrically connected LED.
Background technology
The scientific and technological information product is all towards light, thin, short, little target development at present, traditional display mode such as CRT crt display and LED display board or the like, all be limited by factors such as the excessive or power consumption of volume is very huge, be not easy to carry and carry, be difficult to satisfy user's actual demand, and the development of lcd technology just in time suits the trend of present information products, no matter be little, or the advantage such as zero radiation of right angle demonstration, low power consumption, volume, can both allow the user enjoy best visual environment.
LCD is to be basic module with the liquid crystal material, utilize the photoelectric effect of liquid crystal in the general electronic products,, see through the refracting characteristic of liquid crystal molecule again by the Control of Voltage of outside, and the rotatory power of light obtained the image of different brightness, and then reach the purpose of video picture.
LCD is as a kind of passivity display device, and itself can be not luminous, provides a kind of light source by the backlight that is positioned at its behind, side, and the light that this light source sends passes display floater, and makes LCD represent graph image.
In image display material such as LCD, backlight is positioned at the back of LCD panel, optical module and supports such as light source, LGP, astigmatism plate, diffusion sheet have generally been comprised, wherein, adopted luminous area source on a face, its light that sends is transmitted to diffusion sheet by diffuser plate or LGP, and light arrives prismatic lens through behind the diffusion sheet, reach liquid crystal board by prismatic lens again, make LCD represent graph image.
In image display material such as mobile phone display screen, backlight is positioned at the side (both sides or all around) of LCD panel, it comprises optical module and supports such as light source, LGP, diffusion sheet, and wherein, light source is made up of a plurality of illuminators of lining up a line, be referred to as line source, the light that light source sends is transmitted into diffusion sheet through after the reflection of LGP, through behind the diffusion sheet, arrive liquid crystal board again via prismatic lens, make LCD represent graph image.
Traditional LCD backlight adopts cold-cathode lamp (CCFL) as light source.But high image qualityization and cost degradation demand for development along with the backlight development, CCFL is difficult to meet the demands comprehensively, the advantage of LED is that color reducibility is good, life-span is long, and is not mercurous than environmental protection, drives simple, response speed is fast, environmental suitability is wide, and LED became the up-and-coming youngster in recent years, becomes the key content of backlight research and development.
Referring to Fig. 1, this is in the prior art, and powering at source plate backlight connects the schematic diagram of LED, has only shown the electrical connection of partial L ED here, and remaining LED also connects in an identical manner.
In Fig. 1, all LED are arranged in rectangular array on source plate backlight, the LED grouping of some is together in series in each row, for example LED 101, LED 102, LED 103, LED 104, LED 105, the LED 106 in first row is together in series, LED111, LED 112, LED 113, LED 114, LED 115, LED 116 in second row are together in series, or the like.
In Fig. 1, adopting altogether, the connected mode of anode is connected in the LED drive unit with the LED packet chain, wherein, this LED matrix has the negative pole that a positive pole and a plurality of quantity equal the LED packet chain, the positive pole of each LED packet chain all is connected in a positive pole of led driver, and the negative pole of each LED packet chain then is connected to the corresponding negative pole of led driver.
There is a problem in electric connection mode between this LED, promptly in a LED packet chain, can not the conducting electric current if one of them LED is out of order, so just can't be to any one the LED power supply in this LED packet chain, thereby this string LED can't be luminous, influenced the illumination effect of backlight, made that a corresponding panel region is secretly fallen on the display, visible this electric connection mode is not too reliable.
From as can be known above-mentioned, there is more serious reliability problems in the method for this electrical connection LED of the prior art, not only in backlight, and in other field that LED uses, for example as lighting source etc., also has such reliability problems.
The utility model content
The purpose of this utility model is that the method that provides a kind of LED to be electrically connected solves the problems referred to above, the mode of using specific grouping and series connection is together in series the LED grouping of some, make one or more LED in the LED packet chain and one or more LED of other LED packet chain be placed in position adjacent, if when LED packet chain for some reason can not be luminous like this, the situation that display secretly falls can not occur in a big way, therefore can significantly increase the reliability of system.
According to an aspect of the present utility model, a kind of led light source device is provided, it comprises a plurality of LED, described a plurality of LED comprises a plurality of LED groupings, described each LED grouping comprises a LED or continuously arranged a plurality of LED that is electrically connected with series system, and wherein, described a plurality of LED groupings are carried out respective electrical respectively according to its mutual alignment relation and connected, with the influence to described led light source device of the fault that reduces single led grouping, described respective electrical connects to comprise and is connected in series or is connected in parallel.
Preferably, the led light source device that the utility model provides, wherein, any non-conterminous two or more described LED groupings are electrically connected mutually with series system, to form a LED packet chain.
Preferably, the led light source device that the utility model provides wherein, is electrically connected with parallel way between the described LED packet chain mutually.
Preferably, the led light source device that the utility model provides, wherein, each LED in the described LED packet chain arranges by same predetermined direction.
Compared with prior art, the utlity model has following advantage:
The utility model with one or continuously arranged a plurality of LED as a grouping, and non-conterminous two or more described groupings are cascaded to form the LED packet chain, when having a LEDs to damage in the LED packet chain, all LED in this LED packet chain can not be luminous owing to can't switch on, but because the LED of each grouping of this LED packet chain and other LED packet chain is grouped on all directions is alternately to arrange, the LED of other LED packet chain around the LED grouping that can not be luminous still can be normally luminous, remedied the light-source brightness loss that causes by non-luminous LED to a certain extent, just making only has very little a part of light-source brightness to reduce, and can not produce obviously influence to whole display image, improved the reliability of display.
Description of drawings
By reading the detailed description of doing with reference to the following drawings that non-limiting example is done, it is more obvious that other features, objects and advantages of the present utility model will become:
Fig. 1 is in the prior art, and powering at source plate backlight connects the schematic diagram of LED;
Fig. 2 is according to an embodiment of the present utility model, is electrically connected the schematic diagram of the light source board of LED;
Fig. 3 is according to an embodiment of the present utility model, is electrically connected the schematic diagram of the capable light source board of LED;
Fig. 4 is according to an embodiment of the present utility model, is electrically connected the schematic diagram of the light source board of LED row;
Fig. 5 is the schematic diagram that the LED of a light source board arranges.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 2 is according to an embodiment of the present utility model, is electrically connected the schematic diagram of the light source board of LED.
We claim that a LED or continuously arranged a plurality of LED are a LED grouping, non-adjacent LED grouping can be together in series according to the utility model, for example in Fig. 2, LED 201, LED 202 are continuously arranged 3 LED with LED 203, this is a LED grouping, is referred to as LED grouping 1; Equally, LED 214 is LED groupings, be referred to as LED grouping 2, LED 205 and LED 206 form a grouping, are referred to as LED grouping 3, as can be seen from the figure, each LED in each LED of each grouping in 3 groupings and other each group is laterally or be not adjacent vertically, and these several groupings can be regarded as non-conterminous, therefore, LED can be divided into groups 1, LED grouping 2 and LED grouping 3 be together in series, and just formed LED packet chain 1.
After the same method, the grouping that the grouping that the grouping of being made up of LED 211, LED 221, LED 222, the grouping, LED 224, the LED 225 that are made up of LED 213 can be formed and LED 216 form is together in series, to form LED packet chain 2.
All LED among Fig. 2 are electrically connected in such a manner, make each LED can both connect power supply and luminous.
Also should comprise the LED drive unit among Fig. 2, not shown, it will be appreciated by those skilled in the art that, the LED packet chain can adopt dual mode to be connected in drive unit, a kind of connected mode is to adopt the connected mode of anode altogether, altogether connected mode of anode is: the LED drive unit has the negative pole that a positive pole and a plurality of quantity equal the LED packet chain, the positive pole of each LED packet chain all is connected in a positive pole of led driver, and the negative pole of each LED packet chain then is connected to a corresponding negative pole of led driver; Another kind of connected mode is to adopt the connected mode of common cathode, the connected mode of this common cathode is: the LED drive unit has the positive pole that a negative pole and a plurality of quantity equal the LED packet chain, the negative pole of each LED packet chain all is connected in the negative pole of led driver, and the positive pole of each LED packet chain then is connected to a corresponding positive pole of led driver.
As can be seen from Figure 2, can't the conducting electric current if certain LED in the LED packet chain 1 (for example LED 203) is out of order, make that each LED in the LED packet chain 1 can not be luminous because of connecting power supply, thereby whole LED packet chain 3 can not be luminous, but owing to adopted electric connection mode of the present utility model, LED grouping on the different LED packet chain alternately is arranged on the continuous position, this makes around each LED grouping on the LED packet chain 3, the LED that other LED packet chain is all arranged, because the LED around each LED grouping on the LED packet chain 3 still can be normally luminous, just can remedy to a certain extent because the not luminous light-source brightness loss that causes of the LED on the LED packet chain 3 can not cause obvious influence to the overall brightness of light source.
Fig. 3 is according to an embodiment of the present utility model, is electrically connected the schematic diagram of the capable light source board of LED.
In Fig. 3, according to the utility model, with in the delegation each other at interval the single led of a LED be together in series, for example with LED 301, LED 303 and LED 305 are together in series to form LED packet chain 4, with non-conterminous LED 302, LED 304 and LED 306 are together in series to form LED packet chain 3, as can be seen from Figure 3, belonging to the single led of two LED packet chain is alternately to be arranged in this row, the LED 302 that for example belongs to LED packet chain 3 is between LED 301 that belongs to LED packet chain 4 and LED 303, the LED 303 that belongs to LED packet chain 4 between LED 302 that is in LED packet chain 3 and LED 304, or the like.Like this, if all LED in the LED packet chain 3 are because one of them LED fault and all can not be luminous, because all there is the LED that belongs to LED packet chain 4 on each the LED next door in the LED packet chain 3, these LEDs of belonging to LED packet chain 4 adjacent with LED that can not be luminous still can be luminous, can remedy the loss of the light-source brightness that can not luminously cause owing to the LED that belongs in the LED packet chain 3 to a certain extent.
Can constitute a line source according to the arrangement of present embodiment and the LED of delegation of electrical connection, as can be known, such line source has higher reliability from foregoing description.
If each the row LED in the light source board 2 is electrically connected according to present embodiment, so in this light source board, with each LED position adjacent of a LED packet chain on the LED that belongs to other LED packet chain is arranged, if all LED in LED packet chain can not be luminous, adjacent with each LED of this LED packet chain the so LED that belongs to other LED packet chain still can be luminous, this just can remedy to a certain extent since this LED can not the luminous light-source brightness that causes loss, visible such light source board has higher reliability.
Referring to Fig. 3, according to another embodiment of the present utility model, one or continuously arranged a plurality of LED in this row as a grouping, are together in series non-conterminous grouping and form the LED packet chain, by this way all LED groupings in this row are connected in series to respectively in the different LED packet chain.
In the present embodiment, divide into groups on position adjacent the LED that belongs to other LED packet chain is arranged at each LED with a LED packet chain, if all LED in LED packet chain can not be luminous, adjacent with each LED grouping of this LED packet chain so LED that belongs to other LED packet chain still can be luminous, this just can remedy to a certain extent since this LED divide into groups can not the luminous light-source brightness that causes loss.
Can constitute a line source according to the arrangement of present embodiment and the LED of delegation of electrical connection, as can be known, such line source has higher reliability from foregoing description.
If each the row LED in the light source board 2 is electrically connected according to present embodiment, so in this light source board, divide into groups on position adjacent the LED that belongs to other LED packet chain is arranged at each LED with a LED packet chain, if all LED in LED packet chain can not be luminous, adjacent with each LED grouping of this LED packet chain so LED that belongs to other LED packet chain still can be luminous, this just can remedy to a certain extent since this LED grouping can not the luminous light-source brightness that causes loss, visible such light source board has higher reliability.
Fig. 4 is according to an embodiment of the present utility model, is electrically connected the schematic diagram of the light source board of LED row.
In Fig. 4, according to the utility model, the single led of a LED of interval each other in one row is together in series, for example with LED 401, LED 421 and LED 441 are together in series to form LED packet chain 5, with non-conterminous LED 411, LED 431 is together in series to form LED packet chain 6, as can be seen from Figure 4, belonging to the single led of two LED packet chain is alternately to be arranged in these row, the LED 421 that for example belongs to LED packet chain 5 is between LED 411 that belongs to LED packet chain 6 and LED 431, like this, if all LED in the LED packet chain 5 are because one of them LED fault and all can not be luminous, because all there is the LED that belongs to LED packet chain 6 on each the LED next door in the LED packet chain 5, these LEDs of belonging to LED packet chain 6 adjacent with LED that can not be luminous still can be luminous, can remedy the loss of the light-source brightness that can not luminously cause owing to the LED that belongs in the LED packet chain 5 to a certain extent.
Can constitute a line source according to the arrangement of present embodiment and a row LED of electrical connection, as can be known, such line source has higher reliability from foregoing description.
Referring to Fig. 4, if the LED that respectively is listed as in the light source board 2 is electrically connected according to present embodiment, so in this light source board, with a LED position adjacent on the LED that belongs to other LED packet chain is arranged, if all LED in LED packet chain can not be luminous, adjacent with each LED of this LED packet chain the so LED that belongs to other LED packet chain still can be luminous, this just can remedy to a certain extent since this LED can not the luminous light-source brightness that causes loss, visible such light source board has higher reliability.
Referring to Fig. 4, according to another kind of embodiment of the present utility model, one or continuously arranged a plurality of LED were as a grouping in should being listed as, non-conterminous grouping is together in series forms the LED packet chain, all LED in will being listed as by this way are connected in series to respectively in the different LED packet chain, if all LED in LED packet chain can not be luminous, adjacent with each LED grouping of this LED packet chain so LED that belongs to other LED packet chain still can be luminous, this just can remedy to a certain extent since this LED divide into groups can not the luminous light-source brightness that causes loss.
Can constitute a line source according to the arrangement of present embodiment and a row LED of electrical connection, as can be known, such line source has higher reliability from foregoing description.
If the LED that respectively is listed as in the light source board 2 is electrically connected according to present embodiment, so in this light source board, the LED that belongs to other LED packet chain is all arranged in each grouping on position adjacent with each LED packet chain, if all LED in LED packet chain can not be luminous, adjacent with each LED grouping of this LED packet chain so LED that belongs to other LED packet chain still can be luminous, this just can remedy to a certain extent since this LED can not the luminous light-source brightness that causes loss, visible such light source board has higher reliability.
Referring to Fig. 5, according to an embodiment of the present utility model, series LED on diagonal, in this mode, we claim ± 45 ° of directions are diagonal, claim that all LED on one ± 45 ° lines are a LED team, will on diagonal, also regard adjacent as by adjacent LED simultaneously.
In a LED team of diagonal from the lower left toward the upper right side, one or more LED is divided into groups as a LED, then non-conterminous grouping is together in series and forms a LED packet chain, the LED among Fig. 5 542 for example, LED 533, LED 524, LED 515 and LED 506 are LED teams that are on the diagonal, LED 542 in this LED team and LED 533 are divided into groups as a LED, with LED 515 and LED 506 as a grouping, because these two groupings are non-conterminous, according to the utility model, these two groupings can be together in series and form a LED packet chain.
Referring to Fig. 5, according to an embodiment of the present utility model, all LED teams toward the diagonal in upper right side from the lower left on the light source board 2 are electrically connected, in each LED team that forms by a plurality of LED on this direction, one or more continuous LED in the every team is divided into groups as a LED, then the non-conterminous grouping in the same team is together in series and forms the LED string, like this, with each LED position adjacent on the LED that belongs to other LED packet chain is all arranged, if all LED in LED packet chain can not be luminous, adjacent with each LED grouping of this LED packet chain so LED that belongs to other LED packet chain still can be luminous, this just can remedy the loss of the light-source brightness that is caused by LED that can not be luminous grouping to a certain extent, and visible such light source board has higher reliability.
Referring to Fig. 5, according to an embodiment of the present utility model, all the LED teams toward the diagonal on upper left side from the lower right on the light source board 2 are electrically connected, method of attachment is identical with a last embodiment, here repeat no more, also can reach same effect by this way.
It will be understood by those of skill in the art that in all above-mentioned embodiments, each LED packet chain all is connected in drive unit, also can be together in parallel between the LED packet chain is connected in drive unit again.
More than specific embodiment of the utility model is described.It will be appreciated that the utility model is not limited to above-mentioned specific implementations, those skilled in the art can make various distortion or modification within the scope of the appended claims.
Claims (5)
1. led light source device, it comprises a plurality of LED, described a plurality of LED comprises a plurality of LED groupings, described each LED grouping comprises a LED or continuously arranged a plurality of LED that is electrically connected with series system, it is characterized in that, described a plurality of LED grouping is carried out respective electrical respectively according to its mutual alignment relation and is connected, and with the influence to described led light source device of the fault that reduces single led grouping, described respective electrical connects to comprise and is connected in series or is connected in parallel.
2. led light source device according to claim 1, wherein, any non-conterminous two or more described LED groupings are electrically connected mutually with series system, to form a LED packet chain.
3. led light source device according to claim 1 wherein, is electrically connected with parallel way between the described LED packet chain mutually.
4. led light source device according to claim 1 and 2, wherein, each LED in the described LED packet chain arranges by same predetermined direction.
5. led light source device according to claim 4, wherein, described predetermined direction is included in each in line direction in the led array of being made up of described a plurality of LED, column direction, the diagonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200496597U CN201028321Y (en) | 2006-12-26 | 2006-12-26 | LED light source device with LED connected in a special mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200496597U CN201028321Y (en) | 2006-12-26 | 2006-12-26 | LED light source device with LED connected in a special mode |
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| Publication Number | Publication Date |
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| CN201028321Y true CN201028321Y (en) | 2008-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2006200496597U Expired - Fee Related CN201028321Y (en) | 2006-12-26 | 2006-12-26 | LED light source device with LED connected in a special mode |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221132A (en) * | 2011-06-13 | 2011-10-19 | 郑胜 | LED (light-emitted diode) light source structure applied on lamps |
| CN103456727A (en) * | 2012-06-04 | 2013-12-18 | 弘凯光电股份有限公司 | Multi-chip packaging structure |
| CN110658651A (en) * | 2019-10-11 | 2020-01-07 | 成都天马微电子有限公司 | Lamp panel, backlight module and display device |
| WO2020192618A1 (en) * | 2019-03-27 | 2020-10-01 | 深圳Tcl新技术有限公司 | Backlight source, backlight module and display apparatus comprising same |
| CN111951739A (en) * | 2020-08-05 | 2020-11-17 | Tcl华星光电技术有限公司 | Backlight module and display device |
| CN113433735A (en) * | 2021-06-29 | 2021-09-24 | 上海摩软通讯技术有限公司 | Backlight module, backlight plate, display screen and electronic equipment |
-
2006
- 2006-12-26 CN CNU2006200496597U patent/CN201028321Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221132A (en) * | 2011-06-13 | 2011-10-19 | 郑胜 | LED (light-emitted diode) light source structure applied on lamps |
| CN103456727A (en) * | 2012-06-04 | 2013-12-18 | 弘凯光电股份有限公司 | Multi-chip packaging structure |
| CN103456727B (en) * | 2012-06-04 | 2016-05-18 | 弘凯光电股份有限公司 | Multi-chip packaging structure |
| WO2020192618A1 (en) * | 2019-03-27 | 2020-10-01 | 深圳Tcl新技术有限公司 | Backlight source, backlight module and display apparatus comprising same |
| CN110658651A (en) * | 2019-10-11 | 2020-01-07 | 成都天马微电子有限公司 | Lamp panel, backlight module and display device |
| CN110658651B (en) * | 2019-10-11 | 2022-07-08 | 成都天马微电子有限公司 | Lamp panel, backlight module and display device |
| CN111951739A (en) * | 2020-08-05 | 2020-11-17 | Tcl华星光电技术有限公司 | Backlight module and display device |
| WO2022027760A1 (en) * | 2020-08-05 | 2022-02-10 | Tcl华星光电技术有限公司 | Backlight module and display device |
| CN113433735A (en) * | 2021-06-29 | 2021-09-24 | 上海摩软通讯技术有限公司 | Backlight module, backlight plate, display screen and electronic equipment |
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Effective date of registration: 20091023 Address after: Room 116, zone 5, Pioneer Park, 7 Changjiang Road, New District, Jiangsu, Wuxi Province, China: 214028 Patentee after: Wuxi Ruiming Technology Co. Ltd. Address before: Room 4, building 103-4, Tongji University, 528 Miyun Road, Shanghai, Yangpu District, 200092 Patentee before: Luan Xinyuan |
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Owner name: SUZHOU TIANLU OPTOELECTRONIC TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: RUIMING TECHNOLOGIES INC. Effective date: 20120413 |
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Effective date of registration: 20120413 Address after: 215143 Jiangsu city of Suzhou province Xiangcheng District Pan Yang Industrial Park Kang Yang Road 88 Patentee after: SUZHOU TIANLU PHOTOELECTRIC TECHNOLOGY CO., LTD. Address before: 116 room 5, zone 7, Pioneer Park, 214028 Changjiang Road, New District, Jiangsu, Wuxi Patentee before: Wuxi Ruiming Technology Co. Ltd. |
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Granted publication date: 20080227 Termination date: 20121226 |