CN102788331A - Line structure of LED (Light Emitting Diode) lamp bars - Google Patents
Line structure of LED (Light Emitting Diode) lamp bars Download PDFInfo
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- CN102788331A CN102788331A CN2012102769495A CN201210276949A CN102788331A CN 102788331 A CN102788331 A CN 102788331A CN 2012102769495 A CN2012102769495 A CN 2012102769495A CN 201210276949 A CN201210276949 A CN 201210276949A CN 102788331 A CN102788331 A CN 102788331A
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Abstract
The invention provides a line structure of LED (Light Emitting Diode) lamp bars. The line structure comprises a lead and at least two groups of lamp bar sub sections. Each lamp bar sub section comprises at least two LED light emitting units. The line structure of the LED lamp bars comprises at least a serially connected LED serial line which is connected in serial at intervals and at least two serially connected LED serial lines which are connected in serial in sections. According to the line structure of the LED lamp bars provided by the invention, the serially connected LED serial line which is connected in serial at intervals and the two serially connected LED serial lines which are connected in serial in sections are combined to reduce the influence that all of the sub sections of the lamp bars are free from backlights caused by fault open circuit of one LED light emitting unit in any one sub section of the lamp bars. Furthermore, corresponding backlights of sub sections of the lamp bars can be independently controlled to turn on and off through the serially connected LED serial line of each sub section so as to elastically adjust the backlight brightness of sub sections of local lamp bars.
Description
Technical field
The present invention relates to display unit, relate in particular to a kind of LED lamp bar backlight line construction.
Background technology
At present common adopt of LED lamp bar (light-bar) design " segmentation serial connection LED tandem circuit " or " compartment serial connection LED tandem circuit " are used as the backlight of display unit more.
Adopt the LED lamp bar of " segmentation serial connection LED tandem circuit " design architecture, the plurality of LEDs luminescence unit of same tandem is arranged in the same segmentation, promptly all LED luminescence units are connected in series each other in each lamp bar segmentation, and each lamp bar segmentation is independently of one another.As shown in Figure 1, in order more simply, clearly to describe segmentation serial connection LED tandem circuit, A1, A2, A3, A4, B1, B2, B3, B4; C1, C2, C3, C4, D1, D2, D3, D4 is the LED luminescence unit, adopts (A1 among the figure; A2, A3, A4), (B1, B2, B3, B4), (C1, C2; C3, C4) reach (D1, D2, D3, D4) four lamp bars are segmented into example, and A1 in the lamp bar segmentation 101, A2, A3, four LED luminescence units of A4 are connected into first segmentation serial connection LED tandem circuit; B1 in the lamp bar segmentation 102, B2, B3, four LED luminescence units of B4 are connected into second segmentation serial connection LED tandem circuit; C1 in the lamp bar segmentation 103, C2, C3, four LED luminescence units of C4 are connected into the 3rd segmentation serial connection LED tandem circuit; D1 in the lamp bar segmentation 104, D2, D3, four LED luminescence units of D4 are connected into the 4th segmentation serial connection LED tandem circuit.Four segmentations serial connection LED tandem circuit is switch separately, controls lighting and extinguishing of corresponding LED segmentation respectively.
Adopt the LED lamp bar of " compartment serial connection LED tandem circuit " design architecture; The plurality of LEDs luminescence unit of same tandem is arranged in the segmentation of different lamp bar; Be that the corresponding LED luminescence unit is connected in series each other in each lamp bar segmentation, the LED luminescence unit in each lamp bar segmentation is independently of one another.As shown in Figure 2, a1, a2, a3, a4, b1, b2, b3, b4, c1, c2, c3, c4, d1, d2, d3, d4 are the LED luminescence unit.(a3 a4) forms lamp bar segmentation 201 for a1, a2, and (b3 b4) forms lamp bar segmentation 202 for b1, b2, and (c3 c4) forms lamp bar segmentation 203 for c1, c2, and (d3 d4) forms lamp bar segmentation 204 for d1, d2.A1, b1, four LED luminescence units of c1 and d1 are connected into first compartment serial connection LED tandem wire; A2, b2, four LED luminescence units of c2 and d2 are connected into second compartment serial connection LED tandem circuit; A3, b3, four LED luminescence units of c3 and d3 are connected into the 3rd compartment serial connection LED tandem circuit; A4, b4, four LED luminescence units of c4 and d4 are connected into the 4th compartment serial connection LED tandem circuit.LED luminescence unit in each segmentation is separate, and the some LED luminescence units in the segmentation open circuit, and can not cause that this segmentation is whole opens circuit.
But when adopting segmentation serial connection LED tandem circuit, a LED luminescence unit opens circuit in the segmentation of a certain lamp bar, and the segmentation of then whole lamp bar is promptly opened circuit, thereby causes this lamp bar sectional area not have backlight.And when adopting compartment serial connection LED tandem circuit, can not carry out the independent elasticity gauge tap in local lamp bar segmented backlight source again.
Summary of the invention
To the problems referred to above, the invention provides a kind of LED lamp bar line construction, can avoid because of single LED luminescence unit failure to trip causes no shortcoming backlight in the whole lamp bar segmentation at place, and realize the independent gauge tap in local lamp bar segmented backlight source.
To achieve these goals; The invention provides a kind of LED lamp bar line construction; It comprises lead and at least two group lamp bar segmentations; The segmentation of every group of lamp bar comprises at least two LED luminescence units, and said LED lamp bar line construction comprises at least one compartment serial connection LED tandem circuit and at least two segmentation serial connection LED tandem circuits.
Segmentation serial connection LED tandem circuit breaks off; The backlight illumination of corresponding lamp bar segmentation reduces; All compartment serial connection LED tandem circuits and segmentation serial connection LED tandem line conduction; Whole piece LED lamp bar is lighted, and all compartment serial connection LED tandem circuits and segmentation serial connection LED tandem circuit break off, and whole piece LED lamp bar extinguishes.
Preferable, in said a kind of LED lamp bar line construction, the LED luminescence unit in the said compartment serial connection LED tandem circuit is arranged at respectively in the segmentation of different lamp bar.
Preferable, in said a kind of LED lamp bar line construction, the LED luminescence unit in said every segmentation serial connection LED tandem circuit is arranged in the segmentation of same lamp bar.
Preferable, in said a kind of LED lamp bar line construction, the segmentation of said every group of lamp bar is by at least one segmentation serial connection LED tandem wire way control switch.
Preferable, in said a kind of LED lamp bar line construction, between the said compartment serial connection LED tandem circuit, between the said segmentation serial connection LED tandem circuit and compartment serial connection LED tandem circuit be connected in series with segmentation between the LED tandem circuit and be separated from each other.
Preferable; In said a kind of LED lamp bar line construction, said LED lamp bar line construction comprises the segmentation of four groups of lamp bars; The segmentation of every group of lamp bar comprises four LED luminescence units, and said LED lamp bar line construction comprises two compartment serial connection LED tandem circuits and four segmentation serial connection LED tandem circuits.
Preferable; In said a kind of LED lamp bar line construction; Corresponding LED luminescence unit serial connection forms in the segmentation of every group of lamp bar of said every compartment serial connection LED tandem wire route, and remaining all LED are connected in series each other and form in the segmentation of the corresponding lamp bar of said every segmentation serial connection LED tandem wire route.
Preferable, said every segmentation serial connection LED tandem circuit is controlled the segmentation of corresponding one group of lamp bar respectively.
A kind of module backlight, it comprises above-mentioned arbitrary said LED lamp bar line construction.
A kind of display comprises liquid crystal panel and module backlight, and said module backlight adopts above-mentioned module backlight.
Compared with prior art; LED lamp bar line construction provided by the invention; Through combining compartment serial connection LED tandem circuit and segmentation serial connection LED tandem circuit; Taken into account the advantage of compartment serial connection LED tandem circuit and segmentation serial connection LED tandem circuit; Reduced and met failure to trip because of a LEDs luminescence unit in the segmentation of arbitrary lamp bar and make this lamp bar segmentation all not have the influence of backlight, and can be through every segmentation serial connection LED tandem circuit to the independent elasticity gauge tap in corresponding lamp bar segmented backlight source, thereby realize backlight illumination adjusting to the segmentation of local lamp bar.
Description of drawings
Fig. 1 is a segmentation serial connection LED tandem wire line structure sketch map of the prior art;
Fig. 2 is a compartment serial connection LED tandem wire line structure sketch map of the prior art;
Fig. 3 is the present invention's one preferred embodiment structural representation.
The specific embodiment
For making the object of the invention, structure, characteristic and function thereof there are further understanding, cooperate embodiment to specify as follows now.
As shown in Figure 3, the present invention's one preferred embodiment LED lamp bar line construction comprises the segmentation of four groups of lamp bars, is respectively first lamp bar segmentation 301, the second lamp bar segmentations, 302, the three lamp bar segmentations 303 and the 4th lamp bar segmentation 304.The first lamp bar segmentation 301 comprises L11, L12, four LED luminescence units of L13 and L14; The second lamp bar segmentation 302 comprises L21, L22, four LED luminescence units of L23 and L24; The 3rd lamp bar segmentation 303 comprises L31, L32, four LED luminescence units of L33 and L34; The 4th lamp bar segmentation 304 comprises L41, L42, four LED luminescence units of L43 and L44.Present embodiment LED lamp bar line construction comprises two compartment serial connection LED tandem circuits and four segmentation serial connection LED tandem circuits; Be respectively first compartment serial connection LED tandem circuit 311; Second compartment serial connection LED tandem circuit 313; First segmentation serial connection LED tandem circuit, 312, the second segmentations serial connection LED tandem circuit, 314, the three segmentations serial connection LED tandem circuit 315 and the 4th segmentation serial connection LED tandem circuit 316.Said first compartment serial connection LED tandem circuit 311 is by LED luminescence unit L11; L21, L31 and L41 are in series, and the positive pole of LED luminescence unit L11 is connected in an input; The negative pole of LED luminescence unit L11 is connected in the positive pole of LED luminescence unit L21; The negative pole of LED luminescence unit L21 is connected in the positive pole of LED luminescence unit L31, and the negative pole of LED luminescence unit L31 is connected in the positive pole of LED luminescence unit L41, the minus earth of LED luminescence unit L41; Said second compartment serial connection LED tandem circuit 313 is by LED luminescence unit L13; L23, L33 and L43 are in series, and the positive pole of LED luminescence unit L13 is connected in another input; The negative pole of LED luminescence unit L13 is connected in the positive pole of LED luminescence unit L23; The negative pole of LED luminescence unit L23 is connected in the positive pole of LED luminescence unit L33, and the negative pole of LED luminescence unit L33 is connected in the positive pole of LED luminescence unit L43, the minus earth of LED luminescence unit L43; First compartment serial connection LED tandem circuit 311 is arranged at respectively in the segmentation of four groups of lamp bars with LED luminescence units in the second serial connection LED tandem circuit 313, makes this lamp bar segmentation all not have the influence of backlight thereby reduced because of LEDs luminescence unit chance failure to trip in the segmentation of arbitrary lamp bar.Said first segmentation serial connection LED tandem circuit 312 is in series by LED luminescence unit L12 and L14; The positive pole of LED luminescence unit L12 is connected in an input; The negative pole of LED luminescence unit L12 is connected in the positive pole of LED luminescence unit L14, the minus earth of LED luminescence unit L14; Said second segmentation serial connection LED tandem circuit 314 is in series by LED luminescence unit L22 and L24; The positive pole of LED luminescence unit L22 is connected in an input; The negative pole of LED luminescence unit L22 is connected in the positive pole of LED luminescence unit L24, the minus earth of LED luminescence unit L24; Said the 3rd segmentation serial connection LED tandem circuit 315 is in series by LED luminescence unit L32 and L34; The positive pole of LED luminescence unit L32 is connected in an input; The negative pole of LED luminescence unit L32 is connected in the positive pole of LED luminescence unit L34, the minus earth of LED luminescence unit L34; Said the 4th segmentation serial connection LED tandem circuit 316 is in series by LED luminescence unit L42 and L44; The positive pole of LED luminescence unit L42 is connected in an input; The negative pole of LED luminescence unit L42 is connected in the positive pole of LED luminescence unit L44, the minus earth of LED luminescence unit L44; LED luminescence unit in said first segmentation serial connection LED tandem circuit 312 all is arranged in the first lamp bar segmentation; LED luminescence unit in second segmentation serial connection LED tandem circuit 314 is arranged at and all is arranged in the second lamp bar segmentation; LED luminescence unit in the 3rd segmentation serial connection LED tandem circuit 315 all is arranged in the 3rd lamp bar segmentation; LED luminescence unit in the 4th segmentation serial connection LED tandem circuit 316 all is arranged in the 4th lamp bar segmentation; Thereby guaranteed the independent elasticity gauge tap of each segmentation serial connection LED tandem circuit, and then realized the backlight illumination of local lamp bar segmentation is regulated the segmentation of corresponding one group of lamp bar.Understandable, the segmentation of every group of lamp bar is by at least one segmentation serial connection LED tandem wire way control switch, and the segmentation of one group of lamp bar of every increase increases by at least one segmentation serial connection LED tandem circuit with regard to needs and carries out its control.
Between the compartment serial connection LED tandem circuit, between the segmentation serial connection LED tandem circuit and compartment serial connection LED tandem circuit be connected in series with segmentation between the LED tandem circuit and be separated from each other, guaranteed to be independent of each other between every LED tandem circuit, carry out work separately.When all compartment serial connection LED tandem circuits and segmentation serial connection LED tandem line conduction, whole piece LED lamp bar is lighted; When all compartment serial connection LED tandem circuits and the disconnection of segmentation serial connection LED tandem circuit, whole piece LED lamp bar extinguishes; When first segmentation serial connection LED tandem circuit 312; Second segmentation serial connection LED tandem circuit 314; When the 3rd segmentation serial connection LED tandem circuit 315 or the 4th serial connection LED tandem circuit 316 break off, the then corresponding first lamp bar segmentation, the second lamp bar segmentation; The backlight illumination of the 3rd lamp bar segmentation or the 4th lamp bar segmentation reduces.Understandable, the present invention is not limited thereto, also can increase and decrease the LED luminescence unit in lamp bar segmentation or each the lamp bar segmentation according to actual needs.
In addition, the invention provides a kind of module backlight, this module backlight comprises the LED lamp bar line construction in the foregoing description.And the present invention also provides a kind of display, and it comprises a liquid crystal panel and module backlight, and said module backlight has adopted above-mentioned module backlight.The concrete structure of said module backlight and display is not an emphasis of the present invention, and the concrete structure of said module backlight and display is well known to those skilled in the art, and repeats no more at this.
The present invention is described by above-mentioned related embodiment, yet the foregoing description is merely the example of embodiment of the present invention.Must be pointed out that the embodiment that has disclosed does not limit scope of the present invention.On the contrary, change and retouching not breaking away from the spirit and scope of the present invention to be done all belong to scope of patent protection of the present invention.
Claims (10)
1. LED lamp bar line construction; Comprise lead and at least two group lamp bar segmentations, the segmentation of every group of lamp bar comprises at least two LED luminescence units, it is characterized in that; Said LED lamp bar line construction comprises at least one compartment serial connection LED tandem circuit and at least two segmentation serial connection LED tandem circuits
When segmentation serial connection LED tandem circuit broke off, the backlight illumination of corresponding lamp bar segmentation reduced; When all compartment serial connection LED tandem circuits and segmentation serial connection LED tandem line conduction, whole piece LED lamp bar is lighted; When all compartment serial connection LED tandem circuits and the disconnection of segmentation serial connection LED tandem circuit, whole piece LED lamp bar extinguishes.
2. a kind of according to claim 1 LED lamp bar line construction is characterized in that, the LED luminescence unit in the said compartment serial connection LED tandem circuit is arranged at respectively in the segmentation of different lamp bar.
3. a kind of according to claim 1 LED lamp bar line construction is characterized in that, the LED luminescence unit in said every segmentation serial connection LED tandem circuit is arranged in the segmentation of same lamp bar.
4. a kind of according to claim 1 LED lamp bar line construction is characterized in that, the segmentation of said every group of lamp bar is by at least one segmentation serial connection LED tandem wire way control switch.
5. a kind of according to claim 1 LED lamp bar line construction; It is characterized in that, between the said compartment serial connection LED tandem circuit, between the said segmentation serial connection LED tandem circuit and compartment serial connection LED tandem circuit be connected in series with segmentation between the LED tandem circuit and be separated from each other.
6. a kind of according to claim 1 LED lamp bar line construction; It is characterized in that; Said LED lamp bar line construction; Comprise the segmentation of four groups of lamp bars, the segmentation of every group of lamp bar comprises four LED luminescence units, and said LED lamp bar line construction comprises two compartment serial connection LED tandem circuits and four segmentation serial connection LED tandem circuits.
7. like the said a kind of LED lamp bar line construction of claim 6; It is characterized in that; Corresponding LED luminescence unit serial connection forms in the segmentation of every group of lamp bar of said every compartment serial connection LED tandem wire route, and remaining all LED are connected in series each other and form in the segmentation of the corresponding lamp bar of said every segmentation serial connection LED tandem wire route.
8. like the said a kind of LED lamp bar line construction of claim 7, it is characterized in that said every segmentation serial connection LED tandem circuit is controlled the segmentation of corresponding one group of lamp bar respectively.
9. a module backlight is characterized in that, said module backlight comprises aforesaid right requirement 1 to 8 arbitrary said LED lamp bar line construction.
10. a display comprises liquid crystal panel and module backlight, it is characterized in that, said module backlight adopts aforesaid right to require 9 said modules backlight.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210276949.5A CN102788331B (en) | 2012-08-06 | 2012-08-06 | Line structure of LED (Light Emitting Diode) lamp bars |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210276949.5A CN102788331B (en) | 2012-08-06 | 2012-08-06 | Line structure of LED (Light Emitting Diode) lamp bars |
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| CN102788331A true CN102788331A (en) | 2012-11-21 |
| CN102788331B CN102788331B (en) | 2014-04-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107121835A (en) * | 2017-06-01 | 2017-09-01 | 武汉天马微电子有限公司 | Backlight module and display device |
| WO2023019630A1 (en) * | 2021-08-19 | 2023-02-23 | 深圳市华星光电半导体显示技术有限公司 | Light-emitting substrate and display apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187754A (en) * | 2006-11-15 | 2008-05-28 | 晶宏半导体股份有限公司 | Energy-saving mode light source set |
| CN202310176U (en) * | 2011-11-08 | 2012-07-04 | 彩虹集团公司 | Lamp strip connection circuit |
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2012
- 2012-08-06 CN CN201210276949.5A patent/CN102788331B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187754A (en) * | 2006-11-15 | 2008-05-28 | 晶宏半导体股份有限公司 | Energy-saving mode light source set |
| CN202310176U (en) * | 2011-11-08 | 2012-07-04 | 彩虹集团公司 | Lamp strip connection circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107121835A (en) * | 2017-06-01 | 2017-09-01 | 武汉天马微电子有限公司 | Backlight module and display device |
| WO2023019630A1 (en) * | 2021-08-19 | 2023-02-23 | 深圳市华星光电半导体显示技术有限公司 | Light-emitting substrate and display apparatus |
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| CN102788331B (en) | 2014-04-09 |
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