CN106455195A - Backlight circuit, backlight display module and series-parallel selection method - Google Patents
Backlight circuit, backlight display module and series-parallel selection method Download PDFInfo
- Publication number
- CN106455195A CN106455195A CN201610755851.6A CN201610755851A CN106455195A CN 106455195 A CN106455195 A CN 106455195A CN 201610755851 A CN201610755851 A CN 201610755851A CN 106455195 A CN106455195 A CN 106455195A
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- Prior art keywords
- mouth
- backlight
- fpc
- led
- led line
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Classifications
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- 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]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a backlight circuit, a backlight display module and a series-parallel selection method. The backlight circuit comprises an LED (Light Emitting Diode) circuit and a mode driving circuit, wherein the LED circuit comprises a first LED line and a second LED line which are independent to each other, and the mode driving circuit comprises a series driving circuit and a parallel driving circuit. The backlight display module comprises a backlight panel and a FPC (Flexible Printed Circuit), the FPC has two types which are respectively a first FPC and a second FPC, the backlight panel is electrically connected with the first FPC or the second FPC, the LED circuit is arranged on the backlight panel, the parallel driving circuit is integrated with the first FPC, and the series driving circuit is integrated with the second FPC. The series-parallel selection method comprises the steps of binding the first FPC with the backlight panel when the backlight display module designed by the backlight panel LED in parallel is required to select, and binding the second FPC and the backlight panel when the backlight display module designed by the backlight panel LED in series is required to select.
Description
Technical field
The present invention relates to a kind of circuit, especially relate 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 ', on FPC and this backlight in backlight
Golden finger binds together, and FPC drives LED 1 ' to light.LED 1 ' in existing backlight display module, in backlight
Have series connection and two kinds of connected modes in parallel, as shown in Figure 1, 2, for light have on the FPC of LED just in highest terms with negative pole mouth.According to
When design needs from series LED or parallel connection LED, need to select the backlight display module of different line modes, backlight shows
The commonality of module is poor, and backlight series LED and parallel connection LED select high cost.
Content of the invention
The technical problem to be solved in the present invention is the present situation for prior art, provides a kind of backlight circuit, improves backlight
The commonality of display module, reduces backlight series LED and selects cost with parallel connection LED.
The present invention solves the technical scheme that adopted of above-mentioned technical problem：A kind of backlight circuit it is characterised in that：Including
The LED line road that is arranged in backlight and be arranged at mode activated circuit on FPC, described mode activated circuit with described
LED line road electrically connects, and described LED line road includes the first separate LED line and the second LED line, and described first LED line includes
LEDA1 mouth as the first LED line positive pole input and the LEDK1 mouth as the first LED line negative pole output, described 2nd LED
Line includes the LEDA2 mouth as the second LED line positive pole input and the LEDK2 mouth as the second LED line negative pole output,
It is connected in series with multiple LED, described pattern between LEDA1 mouth and LEDK1 mouth and between LEDA2 mouth and LEDK2 mouth respectively
Driver circuit has four ports, and described mode activated circuit includes so that the first LED line and the second LED line are connected in series
Tandem drive circuit and make the parallel drive circuit that the first LED line and the second LED line are connected in parallel, described parallel connection
Four ports of driver circuit are respectively the A1 mouth as positive pole, the K1 mouth as negative pole, the first connection jaws and the second connection jaws,
In LED line road is electrically connected with parallel drive circuit, the first connection jaws are electrically connected with LEDA1 mouth, LEDA2 mouth respectively, A1 mouth with
First connection jaws electrical connection, the second connection jaws are electrically connected with LEDK1 mouth, LEDK2 mouth respectively, and K1 mouth is electrically connected with the second connection jaws
Connect, four ports of described tandem drive circuit are respectively the A2 mouth as positive pole, the K2 mouth as negative pole, the 3rd connection jaws and
4th connection jaws, in LED line road is electrically connected with tandem drive circuit, A2 mouth is electrically connected with LEDA1 mouth, the 3rd connection jaws with
LEDK1 mouth electrically connects, and the 3rd connection jaws electrically connect with the 4th connection jaws, and the 4th connection jaws are electrically connected with LEDA2 mouth, K2 and
LEDK2 mouth electrically connects.
Preferably, the LED being connected in series between LEDA1 mouth and LEDK1 mouth and between LEDA2 mouth and LEDK2 mouth
Quantity is identical.
In addition, the invention provides a kind of backlight display module, including backlight and FPC it is characterised in that：Described FPC
There are two types, be a FPC and the 2nd FPC respectively, described backlight is electrically connected with a FPC or the 2nd FPC, described
LED line road is arranged in backlight, and a described FPC is integrated with parallel drive circuit, and described 2nd FPC is integrated with series connection
Driver circuit.
Additionally, present invention also offers in a kind of backlight display module LED connection in series-parallel selecting method it is characterised in that
Comprise the following steps：
(1), in backlight, LED line road is designed to separate described first LED line and described second LED line；
(2), FPC is divided into two types, is a FPC and the 2nd FPC respectively, described parallel drive circuit is integrated in
On one FPC, described tandem drive circuit is integrated on the 2nd FPC；
(3), when, needing the backlight display module from backlight LED Parallel Design, a FPC is bound with backlight,
When needing the backlight display module from the connection design of backlight LED strip, the 2nd FPC is bound with backlight.
Compared with prior art, due to it is an advantage of the current invention that：The present invention designs two independent in backlight
One LED line and the second LED line, design four ports, four port the first LED line and the second LED line two ends electricity respectively on FPC
Connect, the mode activated circuit being integrated on FPC is divided into tandem drive circuit and parallel drive circuit, according to mode activated line
FPC is made two types by the difference on road, and when being arranged in pairs or groups with backlight from a FPC, a FPC is formed with backlight sheet combination
The backlight display module LED Parallel Design of realizing in backlight, when being arranged in pairs or groups with backlight from the 2nd FPC, 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 needs to the back of the body according to design
When being selected between light series LED and parallel connection LED, only need to be equipped with different FPC to backlight, improve backlight and show
The commonality of module, greatly reduces and selects cost.
Brief description
Fig. 1 is LED strip connection schematic diagram in existing backlight；
Fig. 2 is LED parallel connection 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 a backlight conspectus when FPC is arranged in pairs or groups with backlight in the embodiment of the present invention；
Fig. 5 is backlight conspectus when the 2nd FPC is arranged in pairs or groups with backlight in the embodiment of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in Fig. 3 is to 5, backlight circuit in this enforcement, including the LED line road being arranged in backlight and be arranged at
Mode activated circuit on FPC, described mode activated circuit is electrically connected with described LED line road, and described LED line road includes mutually only
The first vertical LED line 101 and the second LED line 102, described first LED line 101 is included as the input of the first LED line 101 positive pole
LEDA1 mouth and the LEDK1 mouth as the output of the first LED line 101 negative pole, described second LED line 102 is included as the 2nd LED
The LEDA2 mouth of line 102 positive pole input and the LEDK2 mouth as the output of the second LED line 102 negative pole, in LEDA1 mouth and LEDK1
It is connected in series with LEDA2 mouth and LEDK2 mouth between mouthful and respectively multiple LED5, described mode activated circuit has four
Individual port, described mode activated circuit includes so that the series connection that the first LED line 101 and the second LED line 102 are connected in series is driven
Moving-wire road and make the parallel drive circuit that the first LED line 101 and the second LED line 102 are connected in parallel, described in parallel drives
Four ports on moving-wire road are respectively the A1 mouth as positive pole, the K1 mouth as negative pole, the first connection jaws 1 and the second connection jaws 2,
In LED line road is electrically connected with parallel drive circuit, the first connection jaws 1 are electrically connected with LEDA1 mouth, LEDA2 mouth respectively, A1 mouth with
First connection jaws 1 electrically connect, and the second connection jaws 2 are electrically connected with LEDK1 mouth, LEDK2 mouth respectively, and K1 mouth and the second connection jaws 2 are electric
Connect, four ports of described tandem drive circuit are respectively the A2 mouth as positive pole, the K2 mouth as negative pole, the 3rd connection jaws
3 and the 4th connection jaws 4, in LED line road is electrically connected with tandem drive circuit, A2 mouth is electrically connected with LEDA1 mouth, the 3rd connection jaws
3 are electrically connected with LEDK1 mouth, and the 3rd connection jaws 3 are electrically connected with the 4th connection jaws 4, and the 4th connection jaws 4 are electrically connected with LEDA2 mouth, K2
Electrically connect with LEDK2 mouth.
Preferably, the LED being connected in series between LEDA1 mouth and LEDK1 mouth and between LEDA2 mouth and LEDK2 mouth
Quantity is identical.
In addition, the invention provides a kind of backlight display module, including backlight and FPC, FPC has two types, point
It is not a FPC and the 2nd FPC, described backlight is electrically connected with a FPC or the 2nd FPC, and described LED line road is arranged in backlight
On plate, a described FPC is integrated with parallel drive circuit, described 2nd FPC is integrated with tandem drive circuit.
Finally, present invention also offers in a kind of backlight display module LED connection in series-parallel selecting method, walk including following
Suddenly：
(1), in backlight, LED line road is designed to separate described first LED line 101 and described 2nd LED
Line 102；
(2), FPC is divided into two types, is a FPC and the 2nd FPC respectively, described parallel drive circuit is integrated in
On one FPC, described tandem drive circuit is integrated on the 2nd FPC；
(3), when, needing the backlight display module from backlight LED Parallel Design, a FPC is bound with backlight,
When needing the backlight display module from the connection design of backlight LED strip, the 2nd FPC is bound with backlight.
To sum up, the present invention designs two the first independent LED line 101 and the second LED line 102 in backlight, on FPC
Four ports of design, four port the first LED line 101 and electrical connections of the second LED line 102 two ends respectively, will be integrated on FPC
Mode activated circuit is divided into tandem drive circuit and parallel drive circuit, according to the difference of mode activated circuit, FPC is made two
Type, when being arranged in pairs or groups with backlight from a FPC, the backlight display module that a FPC is formed with backlight sheet combination is realized
LED5 Parallel Design in backlight, when being arranged in pairs or groups with backlight from the 2nd FPC, the 2nd FPC is formed with backlight sheet combination
Backlight display module realizes the LED5 series design in backlight, the present invention according to design need to backlight series LED 5 with parallel
When being selected between LED5, only need to be equipped with different FPC to backlight, improve the commonality of backlight display module,
Greatly reduce and select cost.
Claims (4)
1. a kind of backlight circuit it is characterised in that：Including the LED line road being arranged in backlight and be arranged at the mould on FPC
Formula driver circuit, described mode activated circuit is electrically connected with described LED line road, and described LED line road includes separate first
LED line (101) and the second LED line (102), described first LED line (101) is included as the input of the first LED line (101) positive pole
LEDA1 mouth and the LEDK1 mouth as the output of the first LED line (101) negative pole, described second LED line (102) is included as second
The LEDA2 mouth of LED line (102) positive pole input and the LEDK2 mouth as the output of the second LED line (102) negative pole, in LEDA1 mouth
It is connected in series with multiple LED (5), described mode activated respectively and LEDK1 mouth between and between LEDA2 mouth and LEDK2 mouth
Circuit has four ports, and described mode activated circuit includes so that the first LED line (101) and the second LED line (102) are gone here and there
Join the tandem drive circuit connecting and make the parallel connection that the first LED line (101) and the second LED line (102) are connected in parallel
Driver circuit, four ports of described parallel drive circuit are respectively the A1 mouth as positive pole, the K1 mouth as negative pole, first connect
Line mouth (1) and the second connection jaws (2), in LED line road is electrically connected with parallel drive circuit, the first connection jaws (1) respectively with
LEDA1 mouth, the electrical connection of LEDA2 mouth, A1 mouth electrically connected with the first connection jaws (1), the second connection jaws (2) respectively with LEDK1 mouth,
LEDK2 mouth electrically connects, and K1 mouth is electrically connected with the second connection jaws (2), and four ports of described tandem drive circuit are respectively conduct
The A2 mouth of positive pole, the K2 mouth as negative pole, the 3rd connection jaws (3) and the 4th connection jaws (4), in LED line road and tandem drive line
In the electrical connection of road, A2 mouth electrically connects with LEDA1 mouth, and the 3rd connection jaws (3) are electrically connected with LEDK1 mouth, the 3rd connection jaws (3) and the
Four connection jaws (4) electrically connect, and the 4th connection jaws (4) are electrically connected with LEDA2 mouth, and K2 is electrically connected with LEDK2 mouth.
2. backlight circuit according to claim 1 it is characterised in that：Between LEDA1 mouth and LEDK1 mouth and
LED (5) quantity being connected in series between LEDA2 mouth and LEDK2 mouth is identical.
3. a kind of backlight display module, including backlight and FPC it is characterised in that：Described FPC has two types, is respectively
First FPC and the 2nd FPC, described backlight is electrically connected with a FPC or the 2nd FPC, and described LED line road is arranged in backlight
On, a described FPC is integrated with parallel drive circuit, described 2nd FPC is integrated with tandem drive circuit.
4. in a kind of backlight display module the connection in series-parallel selecting method of LED it is characterised in that comprising the following steps：
(1), in backlight, LED line road is designed to separate described first LED line (101) and described second LED line
(102)；
(2), FPC is divided into two types, is a FPC and the 2nd FPC respectively, described parallel drive circuit is integrated in first
On FPC, described tandem drive circuit is integrated on the 2nd FPC；
(3) when, needing the backlight display module from backlight LED Parallel Design, a FPC is bound with backlight, need
When joining, from backlight LED strip, the backlight display module designing, the 2nd FPC is bound with backlight.
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 true CN106455195A (en) | 2017-02-22 |
| CN106455195B CN106455195B (en) | 2018-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610755851.6A Active CN106455195B (en) | 2016-08-28 | 2016-08-28 | A kind of backlight circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN106455195B (en) |
Citations (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 |
| US20150176820A1 (en) * | 2013-12-20 | 2015-06-25 | Panasonic Intellectual Property Management Co., Ltd. | Light emitting device, illumination apparatus including the same, and mounting substrate |
| 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 |
-
2016
- 2016-08-28 CN CN201610755851.6A patent/CN106455195B/en active Active
Patent Citations (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 |
| US20150176820A1 (en) * | 2013-12-20 | 2015-06-25 | Panasonic Intellectual Property Management Co., Ltd. | Light emitting device, illumination apparatus including the same, and mounting substrate |
| 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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| Publication number | Publication date |
|---|---|
| CN106455195B (en) | 2018-02-16 |
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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. |
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| TR01 | Transfer of patent right |