CN106455195B - A kind of backlight circuit - Google Patents
A kind of backlight circuit Download PDFInfo
- Publication number
- CN106455195B CN106455195B CN201610755851.6A CN201610755851A CN106455195B CN 106455195 B CN106455195 B CN 106455195B CN 201610755851 A CN201610755851 A CN 201610755851A CN 106455195 B CN106455195 B CN 106455195B
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- CN
- China
- Prior art keywords
- mouths
- backlight
- led line
- fpc
- led
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The invention discloses a kind of backlight circuit, wherein backlight circuit includes LED line road and mode activated circuit, and LED line road includes separate the first LED line and the second LED line, and mode activated circuit includes tandem drive circuit and parallel drive circuit；Backlight display module includes backlight and FPC, the FPC has two types, it is the first FPC and the 2nd FPC respectively, backlight electrically connects with the first FPC or the 2nd FPC, the LED line road is arranged in backlight, parallel drive circuit is integrated with first FPC, tandem drive circuit is integrated with the 2nd FPC；When connection in series-parallel selecting method includes needing the backlight display module from backlight LED Parallel Designs, the first FPC and backlight are bound, it is necessary to when joining the backlight display module of design from backlight LED strip, the 2nd FPC and backlight are bound.
Description
Technical field
The present invention relates to a kind of circuit, more particularly, to a kind of backlight circuit, backlight display module and connection in series-parallel selection side
Method.
Background technology
Backlight display module includes backlight and FPC, is provided with LED 1 ' in backlight, FPC with the backlight
Golden finger is bound together, and FPC drivings LED 1 ' is lighted.In existing backlight display module, the LED 1 ' in backlight
Have series connection and two kinds of connected modes in parallel, as shown in Figure 1, 2, for light on LED FPC have just in highest terms with negative pole mouth.According to
Design is needed to select when series LED or parallel connection LED, it is necessary to select the backlight display module of different line modes, and backlight is shown
The commonality of module is poor, and backlight series LED is high from cost with parallel connection LED.
The content of the invention
The technical problem to be solved in the present invention is the present situation for prior art, there is provided a kind of backlight circuit, improves backlight
The commonality of display module, reduce backlight series LED and select cost with parallel connection LED.
Technical scheme is used by the present invention solves above-mentioned technical problem：A kind of backlight circuit, it is characterised in that：Including
The LED line road being arranged in backlight and the mode activated circuit being arranged on FPC, the mode activated circuit with it is described
LED line road electrically connects, and the LED line road includes separate the first LED line and the second LED line, and first LED line includes
LEDK1 mouths as the LEDA1 mouths of the first LED line positive pole input and as the output of the first LED line negative pole, the 2nd LED
Line includes the LEDK2 mouths as the LEDA2 mouths of the second LED line positive pole input and as the output of the second LED line negative pole,
Multiple LED, the pattern are connected in series between LEDA1 mouths and LEDK1 mouths and between LEDA2 mouths and LEDK2 mouths respectively
Driver circuit has four ports, and the mode activated circuit includes make it that the first LED line and the second LED line are connected in series
Tandem drive circuit and cause the parallel drive circuit that is connected in parallel of the first LED line and the second LED line, the parallel connection
Four ports of driver circuit respectively the A1 mouths as positive pole, the K1 mouths as negative pole, the first connection jaws and the second connection jaws,
In being electrically connected on LED line road with parallel drive circuit, the first connection jaws electrically connect with LEDA1 mouths, LEDA2 mouths respectively, A1 mouths with
First connection jaws electrically connect, and the second connection jaws electrically connect with LEDK1 mouths, LEDK2 mouths respectively, and K1 mouths are electrically connected with the second connection jaws
Connect, four ports of the tandem drive circuit are respectively the A2 mouths as positive pole, the K2 mouths as negative pole, the 3rd connection jaws with
4th connection jaws, in being electrically connected on LED line road with tandem drive circuit, A2 mouths electrically connect with LEDA1 mouths, the 3rd connection jaws with
LEDK1 mouths electrically connect, and the 3rd connection jaws electrically connect with the 4th connection jaws, and the 4th connection jaws electrically connect with LEDA2 mouths, K2 and
LEDK2 mouths electrically connect.
Preferably, the LED being connected in series between LEDA1 mouths and LEDK1 mouths and between LEDA2 mouths and LEDK2 mouths
Quantity is identical.
In addition, the invention provides a kind of backlight display module, including backlight and FPC, it is characterised in that：The FPC
It is the first FPC and the 2nd FPC respectively, the backlight electrically connects with the first FPC or the 2nd FPC, described with two types
LED line road is arranged in backlight, and parallel drive circuit is integrated with the first FPC, series connection is integrated with the 2nd FPC
Driver circuit.
In addition, present invention also offers the connection in series-parallel selecting method of LED in backlight display module a kind of, it is characterised in that
Comprise the following steps：
(1) LED line road, is designed to separate first LED line and second LED line in backlight；
(2) FPC, is divided into two types, is the first FPC and the 2nd FPC respectively, the parallel drive circuit is integrated in
On one FPC, the tandem drive circuit is integrated on the 2nd FPC；
(3) when, needing the backlight display module from backlight LED Parallel Designs, the first FPC and backlight are bound,
When needing the backlight display module from the connection design of backlight LED strip, the 2nd FPC and backlight are bound.
Compared with prior art, due to the advantage of the invention is that：The present invention designs two independent the in backlight
One LED line and the second LED line, design four ports on FPC, and the first LED line and the second LED line both ends electricity are distinguished in four ports
Connection, is divided into tandem drive circuit and parallel drive circuit, according to mode activated line by the mode activated circuit being integrated on FPC
Two types are made in FPC by the difference on road, and when being arranged in pairs or groups from the first FPC with backlight, the first FPC is formed with backlight sheet combination
Backlight display module realize LED Parallel Designs in backlight, when being arranged in pairs or groups from the 2nd FPC with backlight, the 2nd FPC with
The backlight display module that backlight sheet combination is formed realizes the LED strip connection design in backlight, and the present invention is according to the design needs to the back of the body
When being selected between light series LED and parallel connection LED, different FPC need to be only equipped with to backlight, backlight is improved and shows
The commonality of module, is greatly reduced from cost.
Brief description of the drawings
Fig. 1 is that LED strip joins schematic diagram in existing backlight；
Fig. 2 is LED parallel connections schematic diagram in existing backlight；
Fig. 3 is the design diagram on LED line road in backlight in the embodiment of the present invention；
Fig. 4 is backlight conspectus when the first FPC arranges in pairs or groups with backlight in the embodiment of the present invention；
Fig. 5 is backlight conspectus when the 2nd FPC arranges in pairs or groups with backlight in the embodiment of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in Fig. 3 to 5, the backlight circuit in this implementation, including the LED line road that is arranged in backlight and be arranged at
Mode activated circuit on FPC, the mode activated circuit electrically connect with the LED line road, and the LED line road is included mutually solely
Vertical the first LED line 101 and the second LED line 102, first LED line 101 are included as the input of the positive pole of the first LED line 101
LEDA1 mouths and the LEDK1 mouths as the output of the negative pole of the first LED line 101, second LED line 102 include being used as the 2nd LED
The LEDA2 mouths of the positive pole of line 102 input and the LEDK2 mouths as the output of the negative pole of the second LED line 102, in LEDA1 mouths and LEDK1
Multiple LED5 are connected in series between mouthful and between LEDA2 mouths and LEDK2 mouths respectively, the mode activated circuit has four
Individual port, the series connection that the mode activated circuit includes the first LED line 101 and the second LED line 102 are connected in series are driven
Moving-wire road and the parallel drive circuit that the first LED line 101 and the second LED line 102 are connected in parallel, the drive in parallel
Four ports on moving-wire road respectively the A1 mouths as positive pole, the K1 mouths as negative pole, the first connection jaws 1 and the second connection jaws 2,
In being electrically connected on LED line road with parallel drive circuit, the first connection jaws 1 electrically connect with LEDA1 mouths, LEDA2 mouths respectively, A1 mouths with
First connection jaws 1 electrically connect, and the second connection jaws 2 electrically connect with LEDK1 mouths, LEDK2 mouths respectively, K1 mouths and the electricity of the second connection jaws 2
Connection, four ports respectively the A2 mouths as positive pole, the K2 mouths as negative pole of the tandem drive circuit, the 3rd connection jaws
3 and the 4th connection jaws 4, in being electrically connected on LED line road with tandem drive circuit, A2 mouths electrically connect with LEDA1 mouths, the 3rd connection jaws
3 electrically connect with LEDK1 mouths, and the 3rd connection jaws 3 electrically connect with the 4th connection jaws 4, and the 4th connection jaws 4 electrically connect with LEDA2 mouths, K2
Electrically connected with LEDK2 mouths.
Preferably, the LED being connected in series between LEDA1 mouths and LEDK1 mouths and between LEDA2 mouths and LEDK2 mouths
Quantity is identical.
In addition, the invention provides a kind of backlight display module, including backlight and FPC, FPC to have two types, point
It is not the first FPC and the 2nd FPC, the backlight electrically connects with the first FPC or the 2nd FPC, and the LED line road is arranged in backlight
On plate, parallel drive circuit is integrated with the first FPC, tandem drive circuit is integrated with the 2nd FPC.
Finally, present invention also offers the connection in series-parallel selecting method of LED in backlight display module a kind of, including following step
Suddenly：
(1) LED line road, is designed to separate first LED line 101 and the 2nd LED in backlight
Line 102；
(2) FPC, is divided into two types, is the first FPC and the 2nd FPC respectively, the parallel drive circuit is integrated in
On one FPC, the tandem drive circuit is integrated on the 2nd FPC；
(3) when, needing the backlight display module from backlight LED Parallel Designs, the first FPC and backlight are bound,
When needing the backlight display module from the connection design of backlight LED strip, the 2nd FPC and backlight are bound.
To sum up, the present invention designs two independent the first LED lines 101 and the second LED line 102 in backlight, on FPC
Four ports are designed, four ports are distinguished the first LED line 101 and the electrical connection of the both ends of the second LED line 102, will be integrated on FPC
Mode activated circuit is divided into tandem drive circuit and parallel drive circuit, and FPC is made into two according to the difference of mode activated circuit
Type, when being arranged in pairs or groups from the first FPC with backlight, the first FPC realizes with the backlight display module that backlight sheet combination is formed
LED5 Parallel Designs in backlight, when being arranged in pairs or groups from the 2nd FPC with backlight, the 2nd FPC is formed with backlight sheet combination
Backlight display module realizes the LED5 series designs in backlight, the present invention according to the design needs to backlight series LED 5 with it is in parallel
When being selected between LED5, different FPC need to be only equipped with to backlight, improves the commonality of backlight display module,
Greatly reduce and select cost.
Claims (2)
- A kind of 1. backlight circuit, it is characterised in that：Including the LED line road being arranged in backlight and the mould being arranged on FPC Formula driver circuit, the mode activated circuit electrically connect with the LED line road, and the LED line road includes separate first LED line (101) and the second LED line (102), first LED line (101) are included as the input of the first LED line (101) positive pole LEDA1 mouths and the LEDK1 mouths as the output of the first LED line (101) negative pole, second LED line (102) include being used as second The LEDA2 mouths of LED line (102) positive pole input and the LEDK2 mouths as the output of the second LED line (102) negative pole, in LEDA1 mouths It is connected in series with multiple LED (5), the mode activated respectively between LEDK1 mouths and between LEDA2 mouths and LEDK2 mouths Circuit has four ports, and the mode activated circuit includes make it that the first LED line (101) and the second LED line (102) are gone here and there The parallel connection for joining the tandem drive circuit of connection and the first LED line (101) and the second LED line (102) being connected in parallel Driver circuit, four ports respectively the A1 mouths as positive pole, the K1 mouths as negative pole, first of the parallel drive circuit connect Line mouth (1) and the second connection jaws (2), in being electrically connected on LED line road with parallel drive circuit, the first connection jaws (1) respectively with LEDA1 mouths, the electrical connection of LEDA2 mouths, A1 mouths electrically connect with the first connection jaws (1), the second connection jaws (2) respectively with LEDK1 mouths, LEDK2 mouths electrically connect, and K1 mouths electrically connect with the second connection jaws (2), and four ports of the tandem drive circuit are respectively conduct The A2 mouths of positive pole, the K2 mouths as negative pole, the 3rd connection jaws (3) and the 4th connection jaws (4), on LED line road and tandem drive line In the electrical connection of road, A2 mouths electrically connect with LEDA1 mouths, and the 3rd connection jaws (3) electrically connect with LEDK1 mouths, the 3rd connection jaws (3) and the Four connection jaws (4) electrically connect, and the 4th connection jaws (4) electrically connect with LEDA2 mouths, and K2 electrically connects with LEDK2 mouths.
- 2. backlight circuit according to claim 1, it is characterised in that：Between LEDA1 mouths and LEDK1 mouths and LED (5) quantity being connected in series between LEDA2 mouths and LEDK2 mouths is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610755851.6A CN106455195B (en) | 2016-08-28 | 2016-08-28 | A kind of backlight circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610755851.6A CN106455195B (en) | 2016-08-28 | 2016-08-28 | A kind of backlight circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106455195A CN106455195A (en) | 2017-02-22 |
| CN106455195B true CN106455195B (en) | 2018-02-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610755851.6A Active CN106455195B (en) | 2016-08-28 | 2016-08-28 | A kind of backlight circuit |
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| Country | Link |
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| CN (1) | CN106455195B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012168471A (en) * | 2011-02-16 | 2012-09-06 | Panasonic Liquid Crystal Display Co Ltd | Liquid crystal display device and television receiver |
| JP6252753B2 (en) * | 2013-12-20 | 2017-12-27 | パナソニックＩｐマネジメント株式会社 | LIGHT EMITTING DEVICE, LIGHTING DEVICE, AND MOUNTING BOARD |
| CN205987474U (en) * | 2016-08-28 | 2017-02-22 | 江西合力泰科技有限公司 | Circuit and display module assembly that is shaded are shaded |
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2016
- 2016-08-28 CN CN201610755851.6A patent/CN106455195B/en active Active
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| Publication number | Publication date |
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| CN106455195A (en) | 2017-02-22 |
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Effective date of registration: 20191223 Address after: 343600 No.278, Shenzhen Avenue, Jinggangshan economic and Technological Development Zone, Ji'an City, Jiangxi Province Patentee after: Ji'an Jingkai District helitai Technology Co., Ltd Address before: 343700 Ji'an city of Jiangxi Province Taihe County Industrial Park Patentee before: JIANGXI HELITAI TECHNOLOGY CO., LTD. |