CN103925517B - A kind of backlight module and liquid crystal display device - Google Patents
A kind of backlight module and liquid crystal display device Download PDFInfo
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- CN103925517B CN103925517B CN201310616263.0A CN201310616263A CN103925517B CN 103925517 B CN103925517 B CN 103925517B CN 201310616263 A CN201310616263 A CN 201310616263A CN 103925517 B CN103925517 B CN 103925517B
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- printed circuit
- circuit board
- flexible printed
- positioning protrusion
- backlight
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Abstract
The invention discloses a kind of backlight module and liquid crystal display device, wherein, the backlight module includes：Backlight flexible printed circuit board, including at least one location hole；Panel flexible printed circuit board, including at least one and matched positioning protrusion of the location hole.The present invention can improve the contraposition efficiency of backlight flexible printed circuit board and panel flexible printed circuit board and contraposition accuracy, and the welding after contraposition can be made more to stablize；In addition, making positioning protrusion by using conductive material, and the positioning protrusion is made to be grounded through capture pad below, additionally it is possible to play the role of electrostatic protection.
Description
Technical field
The present invention relates to technical field of liquid crystal display, and in particular to modular structure technical field more particularly to a kind of backlight
Module and liquid crystal display device.
Background technology
Flexible printed circuit board（Flexible Printed Circuit, abbreviation FPC）, also known as flexible circuit board, flexibility
Wiring board, abbreviation soft board have the characteristics that Distribution density is high, light-weight, thickness is thin.Flexible printed circuit board is with polyimides
Or polyester film one kind made of base material has height reliability, excellent flexible printed circuit is mainly used in hand
Many products such as machine, laptop, digital camera, liquid crystal display die set.
Liquid crystal display device generally includes backlight flexible printed circuit board and panel flexible printed circuit board, wherein, backlight
Flexible printed circuit board provides the cabling of connection power supply, panel flexible printed circuit board master for the back light of liquid crystal display device
The cabling of connection signal to be provided for the display of liquid crystal display panel.Backlight flexible printed circuit board and panel flexible printing
Circuit board is mounted on before liquid crystal display device, is needed backlight flexible printed circuit board and the progress of panel flexible printed circuit board
It is welded after contraposition and contraposition.
Fig. 1 be according to prior art backlight flexible printed circuit board and panel flexible printed circuit board contraposition after signal
Figure.As shown in Figure 1, when backlight flexible printed circuit board 101 and panel flexible printed circuit board 103 are aligned, need to first by
The welding ends 102 of backlight flexible printed circuit board 101 is placed on the pad 104 of panel flexible printed circuit board 103, and make welding
The end at end 102 is aligned with the silk-screen 105 of panel flexible printed circuit board 103, again with soldering appliance to welding ends after having aligned
102 and pad 104 welded.However, when human hand pushes backlight flexible printed circuit board 101 to be aligned, it is difficult to ensure that
Disposably just by the end of the welding ends 102 of backlight flexible printed circuit board 101 and the silk-screen of panel flexible printed circuit board 103
105 alignment, need to be repeated, and the consuming time is longer, and contraposition efficiency is low；When being aligned, sentence mainly by the vision of people
Disconnected contraposition, error is larger, and contraposition accuracy is low；After contraposition, before being welded, human hand and welding ends 102 are in what is floated
State is held in welding and is easily dislocated short circuit or makes the welding ends 102 of backlight flexible printed circuit board 101 and panel flexible
The pad 104 of printed circuit board 103 contacts too short or long, causes failure welding.
Invention content
The technical problems to be solved by the invention are that backlight flexible printed circuit board and panel flexible printed circuit board carry out
Contraposition efficiency during contraposition is low, contraposition accuracy is low and contraposition after weld it is unstable.
In a first aspect, an embodiment of the present invention provides a kind of backlight module, including：Backlight flexible printed circuit board, including
At least one location hole；And panel flexible printed circuit board, including at least one and matched positioning protrusion of the location hole.
Second aspect, the embodiment of the present invention additionally provide a kind of liquid crystal display dress of backlight module including first aspect
It puts.
The backlight module and liquid crystal display device that the embodiment of the present invention proposes, by backlight flexible printed circuit board
At least one location hole is set and at least one and matched convex of location hole is set on panel flexible printed circuit board
It rises, when backlight flexible printed circuit board and panel flexible printed circuit board are aligned, contraposition efficiency and contraposition can be improved
Accuracy, and the welding after contraposition can be made more to stablize；In addition, making positioning protrusion by using conductive material, and make this
Positioning protrusion is grounded through capture pad below, additionally it is possible to play the role of electrostatic protection.
Description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, of the invention is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 be according to prior art backlight flexible printed circuit board and panel flexible printed circuit board contraposition after signal
Figure；
Fig. 2 a are the signals of the backlight flexible printed circuit board for including a location hole according to a first embodiment of the present invention
Figure；
Fig. 2 b are showing for the panel flexible printed circuit board for including a positioning protrusion according to a first embodiment of the present invention
It is intended to；
Fig. 2 c are the backlight flexible printed circuit boards for including location hole according to a first embodiment of the present invention with including
Schematic diagram after the panel flexible printed circuit board contraposition of one positioning protrusion；
Fig. 3 be according to a first embodiment of the present invention include a positioning protrusion made by conductive material and one positions
The schematic diagram of the panel flexible printed circuit board of pad；
Fig. 4 is the schematic diagram of the liquid crystal display device using backlight module according to a first embodiment of the present invention；
Fig. 5 be the backlight flexible printed circuit board for including location hole according to a second embodiment of the present invention with including one
Schematic diagram after the panel flexible printed circuit board contraposition of a positioning protrusion made by conductive material and a capture pad；
Fig. 6 is the schematic diagram of the liquid crystal display device using backlight module according to a second embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to just
Illustrate only part related to the present invention rather than full content in description, attached drawing, and structure shown in attached drawing
Size and size, size not practical or to practical proportional structure.
The first embodiment of the present invention is shown in Fig. 2 a to Fig. 2 c, Fig. 3 and Fig. 4.
First embodiment of the invention be about backlight module and using backlight module liquid crystal display device, the backlight
Module includes：Backlight flexible printed circuit board, including a location hole；Panel flexible printed circuit board, including one with it is described
The matched positioning protrusion of location hole.Fig. 2 a are the backlight flexible printed circuit boards for including a location hole according to the present embodiment
Schematic diagram as shown in Figure 2 a, a location hole 202 is set on backlight flexible printed circuit board 201 and is printed in backlight flexibility
201 end of printed circuit board is additionally provided with welding ends 203；Fig. 2 b are soft according to the panel including a positioning protrusion of the present embodiment
Property printed circuit board schematic diagram, as shown in Figure 2 b, on panel flexible printed circuit board 204 set a positioning protrusion 205,
And it is additionally provided with pad 206 in the end of panel flexible printed circuit board 204；Fig. 2 c are to include one according to the present embodiment
The backlight flexible printed circuit board of location hole and the signal after the panel flexible printed circuit board contraposition including a positioning protrusion
Figure, referring to Fig. 2 c, when the positioning protrusion 205 on panel flexible printed circuit board 204 is passed through on backlight flexible printed circuit board 201
Location hole 202 so that the weldering of welding ends 203 on backlight flexible printed circuit board 201 and panel flexible printed circuit board 204
206 accurate alignment of disk, so as to fulfill the contraposition of backlight flexible printed circuit board 201 and panel flexible printed circuit board 204.
The location hole 202 matches the positioning referred on the panel flexible printed circuit board 204 with positioning protrusion 205
Protrusion 205 can pass through the location hole on the backlight flexible printed circuit board 201 being correspondingly arranged with the positioning protrusion 205
202, wherein, the location hole 202 is dimensioned such that the positioning protrusion 205 can squeeze into the location hole 202, and
So that the backlight flexible printed circuit board 201 and the panel flexible printed circuit board 204 after contraposition are relatively fixed, do not send out
Capture is moved or is rotated.
The backlight flexible printed circuit board 201 before welding and panel flexibility are printed by positioning protrusion 205 and location hole 202
Printed circuit board 204 is aligned, and can once complete to align, and is passed through with the prior art manually by the end of welding ends and silk-screen pair
Neat alignment method is compared, and not only increases contraposition efficiency, also improves the accuracy of contraposition；Since the backlight after contraposition is flexible
Printed circuit board 201 and panel flexible printed circuit board 204 are very fixed, do not float or rotate, so that after contraposition
Welding is also more stablized.
Optionally, referring to Fig. 2 a and Fig. 2 b, the backlight flexible printed circuit board 201 further includes welding ends 203, the face
Plate flexible printed circuit board 204 further includes to weld together with the welding ends 203 of the backlight flexible printed circuit board 201
Pad 206；The location hole 202 is set to the region except the welding ends 203；The positioning protrusion 205 is set to institute
State the region except pad 206.In fig. 2 a, location hole 202 is arranged far from the backlight flexible printed circuit board of welding ends 203
201 region, in figure 2b, positioning protrusion 205 are arranged far from the region of the panel flexible printed circuit board 204 of pad 206,
However, location hole 202 can also be arranged on the region between the two neighboring welding ends 203 of backlight flexible printed circuit board 201,
Correspondingly position the area that protrusion 205 can also be arranged between the two neighboring pad 206 of panel flexible printed circuit board 204
Domain.
The pad of the welding ends 203 of the backlight flexible printed circuit board 201 and the panel flexible printed circuit board 204
206 weld together.When the positioning protrusion 205 on panel flexible printed circuit board 204 passes through backlight flexible printed circuit board 201
On location hole 202 so that welding ends 203 on backlight flexible printed circuit board 201 and panel flexible printed circuit board 204
After 206 accurate alignment of pad, then welding ends 203 and pad 206 welded together, can realize backlight flexible printed circuit board
Secured and stable electrical connection between 201 and panel flexible printed circuit board 204.
In the present embodiment, the number of the location hole 202 and the positioning protrusion 205 is one.The present embodiment can be with
It is one to set the number of location hole 202 and positioning protrusion 205, is because location hole 202 is provided in backlight flexible printing electricity
Region other than the welding ends 203 of road plate 201, which is flexible, when size and the positioning protrusion 205 of location hole 202
Hour equal in magnitude or than the size of positioning protrusion 205, remain able to so that positioning protrusion 205 squeezes into location hole 202,
It, can be by backlight flexible printing electricity during the contraposition of progress backlight flexible printed circuit board 201 and panel flexible printed circuit board 204
Road plate 201 is firmly secured on panel flexible printed circuit board 204, so as to improve the accuracy of contraposition.However, at this
In invention, the number of location hole 202 and positioning protrusion 205 can be more than one, optionally, location hole 202 and positioning protrusion 205
Number be 2,3,4 or 5.
In the present embodiment, the positioning protrusion 205 is the quadrangular that cross section is square, in the present invention, convex
It can be the stereochemical structure of regular shape or the stereochemical structure of irregular shape, optionally, positioning protrusion to play 205
205 be the stereochemical structure of regular shape, such as cylindricality, taper or fusiformis are so that it is convenient to design and make determining for stereochemical structure
Position protrusion 205, and location hole 202 is easier to match with corresponding positioning protrusion 205.
Optionally, the height of the positioning protrusion 205 is more than the thickness of the backlight flexible printed circuit board 201.Due to
The height of positioning protrusion 205 is more than the thickness of backlight flexible printed circuit board 201, is carrying out panel flexible printed circuit board 204
During with the contraposition of backlight flexible printed circuit board 201, convenient for seeing whether that positioning protrusion 205 has already passed through location hole 202, so as to
Complete the contraposition of two flexible printed circuit boards；In addition, when being welded after contraposition, in order to keep two flexible print circuits
The fitting of plate can be placed on finger on positioning protrusion 205, utilize the elastic by backlight flexible printed circuit board 201 of finger tripe
It is pressed on the surface of panel flexible printed circuit board 204 so that pad 206 comes into full contact with welding ends 203, improves welding matter
Amount.
Optionally, the material of the positioning protrusion 207 is conductive material.Fig. 3 be according to the present embodiment include one by
The positioning protrusion and the schematic diagram of the panel flexible printed circuit board of a capture pad that conductive material makes, referring to Fig. 3, in institute
The material of positioning protrusion 207 is stated as in the case of conductive material, the panel flexible printed circuit board 201 is further included positioned at described
The capture pad 208 of the lower section of positioning protrusion 207, the positioning protrusion 207 are electrically connected with capture pad 208, and pass through it is described fixed
Position pad 208 is through the conducting wire in panel flexible printed circuit board 204（It is not shown in figure 3）It is grounded positioning protrusion 207.It is carrying on the back
When light flexible printed circuit board 201 and panel flexible printed circuit board 204 are aligned, positioning protrusion 207 will pass through location hole,
Positioning protrusion 207 may generate electrostatic, positioning protrusion 207 made by using conductive material with the edge friction of location hole,
And positioning protrusion 207 is made to be grounded by capture pad 208 below, the electrostatic of generation can be guided, play electrostatic protection
Effect so that device on two flexible printed circuit boards can not by the interference that electrostatic is generated during contraposition and normally
Work.
A kind of liquid crystal display device has used the present embodiment backlight module recited above, wherein, liquid crystal display device can
Think mobile phone display screen, flat-panel monitor and console display etc..Fig. 4 is the liquid crystal using backlight module according to the present embodiment
The schematic diagram of display device, with reference to Fig. 4, liquid crystal display device includes being printed by backlight flexible printed circuit board 201 and panel flexibility
The backlight module of the compositions such as printed circuit board 204, backlight 209 and glue frame 210.About backlight module, backlight 209 and glue frame
Operation principle of 210 grades in liquid crystal display device, is well known to those skilled in the art, details are not described herein.In addition,
As shown in figure 4, the amplified figure in a-quadrant that dotted line surrounds refers to Fig. 2 c.By Fig. 2 c as it can be seen that backlight module includes：Backlight
Flexible printed circuit board 201, including a location hole 202；Panel flexible printed circuit board 204, including one and location hole 202
Matched positioning protrusion 205.By the way that positioning protrusion 205 is passed through location hole 202,201 He of backlight flexible printed circuit board is realized
The contraposition of panel flexible printed circuit board 204 welds more stable backlight module after obtaining contraposition accuracy height and contraposition, from
And be conducive to improve the quality and service life of liquid crystal display device.
The backlight module and liquid crystal display device that first embodiment of the invention proposes, by backlight flexible print circuit
One location hole 202 on plate 201 is set and sets one on panel flexible printed circuit board 204 and is matched with location hole 202
Positioning protrusion 205, when backlight flexible printed circuit board 201 and panel flexible printed circuit board 204 are aligned, Neng Gouti
Height contraposition efficiency and contraposition accuracy, and the welding after contraposition can be made more to stablize；In addition, it is made by using conductive material
Positioning protrusion 207, and the positioning protrusion 207 is made to be grounded through capture pad 208 below, additionally it is possible to play the work of electrostatic protection
With.
The second embodiment of the present invention is shown in Fig. 5 and Fig. 6.In addition, the backlight in second embodiment of the invention is soft
The schematic diagram of property printed circuit board and panel flexible printed circuit board is respectively one with Fig. 2 a and Fig. 3 in first embodiment of the invention
Sample, therefore, in the signal that flexible printed circuit board and panel flexible printed circuit board are arrived involved in second embodiment of the invention
Figure, can be respectively using Fig. 2 a and Fig. 3 in first embodiment of the invention.
Second embodiment of the invention be about backlight module and using backlight module liquid crystal display device, the backlight
Module includes：Backlight flexible printed circuit board, including a location hole；Panel flexible printed circuit board, including one with it is described
Location hole it is matched and by conductive material make positioning protrusion and one be located at the positioning protrusion below capture pad,
The positioning protrusion is grounded by the capture pad.Fig. 2 a are according to a first embodiment of the present invention including a location hole
The schematic diagram of backlight flexible printed circuit board as shown in Figure 2 a, sets a location hole on backlight flexible printed circuit board 201
202 and it is additionally provided with welding ends 203 in 201 end of backlight flexible printed circuit board；Fig. 3 is implemented according to the present invention first
The signal of the panel flexible printed circuit board for including an a positioning protrusion and capture pad by conductive material making of example
Figure, as shown in figure 3, on panel flexible printed circuit board 204 set one by conductive material make positioning protrusion 207 and
It one capture pad 208 for being located at the lower section of positioning protrusion 207 and is also set up in the end of panel flexible printed circuit board 204
There is pad 206；The backlight flexible printed circuit boards for including a location hole of Fig. 5 according to a second embodiment of the present invention are with including one
Schematic diagram after the panel flexible printed circuit board contraposition of a positioning protrusion made by conductive material and a capture pad, ginseng
Fig. 5 is seen, when the positioning protrusion 207 made by conductive material in the capture pad 208 in panel flexible printed circuit board 204 is worn
Cross the location hole 202 on backlight flexible printed circuit board 201 so that welding ends 203 on backlight flexible printed circuit board 201 with
206 accurate alignment of pad of panel flexible printed circuit board 204, it is soft so as to fulfill backlight flexible printed circuit board 201 and panel
The contraposition of property printed circuit board 204.
The location hole 202 matches the positioning referred on the panel flexible printed circuit board 204 with positioning protrusion 207
Protrusion 207 can pass through the location hole on the backlight flexible printed circuit board 201 being correspondingly arranged with the positioning protrusion 207
202, wherein, the location hole 202 is dimensioned such that the positioning protrusion 207 can squeeze into the location hole 202, and
So that the backlight flexible printed circuit board 201 and the panel flexible printed circuit board 204 after contraposition are relatively fixed, do not send out
Capture is moved or is rotated.By positioning protrusion 207 and location hole 202 to the backlight flexible printed circuit board 201 and panel before welding
Flexible printed circuit board 204 is aligned, and can once complete to align, with the prior art by manually by the end of welding ends with
The alignment method of silk-screen alignment is compared, and is not only increased contraposition efficiency, is also improved the accuracy of contraposition；Due to the back of the body after contraposition
Light flexible printed circuit board 201 and panel flexible printed circuit board 204 are very fixed, do not float or rotate, so that right
Welding behind position is also more stablized.
The positioning protrusion 207 is grounded by the capture pad 208, can play the role of electrostatic protection, wherein, institute
Stating capture pad 208 can be through the wired earth in panel flexible printed circuit board 204（It is not shown in fig. 3 and in fig. 5）.It is carrying on the back
When light flexible printed circuit board 201 and panel flexible printed circuit board 204 are aligned, positioning protrusion 207 will pass through location hole
202, positioning protrusion 207 may generate electrostatic with the edge friction of location hole 202, and positioning is made by using conductive material
Protrusion 207, and positioning protrusion 207 is made to be grounded by capture pad 208 below, the electrostatic of generation can be guided, played
The effect of electrostatic protection so that the device on two flexible printed circuit boards can not be interfered by electrostatic is generated during contraposition
And it normally works.
Optionally, the backlight flexible printed circuit board 201 further includes welding ends 203, the panel flexible print circuit
Plate 204 further includes the pad 206 for welding together with the welding ends 203 of the backlight flexible printed circuit board 201；It is described
Location hole 202 is set to the region except the welding ends 203；The positioning protrusion 207 is set to except the pad 206
Region.In fig. 2 a, location hole 202 is arranged far from the region of the backlight flexible printed circuit board 201 of welding ends 203, in Fig. 3
In, the positioning protrusion 207 above capture pad 208 is arranged far from the panel flexible printed circuit board 204 of pad 206
Region, however, location hole 202 can also be arranged between the two neighboring welding ends 203 of backlight flexible printed circuit board 201
Region, panel flexible printed circuit board can also be arranged on by correspondingly positioning protrusion 207 and capture pad 208 below
Region between 204 two neighboring pad 206.
The pad of the welding ends 203 of the backlight flexible printed circuit board 201 and the panel flexible printed circuit board 204
206 weld together.When the positioning protrusion 207 on panel flexible printed circuit board 204 passes through backlight flexible printed circuit board 201
On location hole 202 so that welding ends 203 on backlight flexible printed circuit board 201 and panel flexible printed circuit board 204
After 206 accurate alignment of pad, then welding ends 203 and pad 206 welded together, can realize backlight flexible printed circuit board
Secured and stable electrical connection between 201 and panel flexible printed circuit board 204.
In the present embodiment, the number of the location hole 202 and the positioning protrusion 207 is one.The present embodiment can be with
It is one to set the number of location hole 202 and positioning protrusion 207, is because location hole 202 is provided in backlight flexible printing electricity
Region other than the welding ends 203 of road plate 201, which is flexible, when size and the positioning protrusion 207 of location hole 202
Hour equal in magnitude or than the size of positioning protrusion 207, remain able to so that positioning protrusion 207 squeezes into location hole 202,
It, can be by backlight flexible printing electricity during the contraposition of progress backlight flexible printed circuit board 201 and panel flexible printed circuit board 204
Road plate 201 is firmly secured on panel flexible printed circuit board 204, so as to improve the accuracy of contraposition.However, at this
In invention, the number of location hole 202 and positioning protrusion 207 can be more than one, optionally, location hole 202 and positioning protrusion 207
Number be 2,3,4 or 5.
In the present embodiment, the positioning protrusion 207 is the quadrangular that cross section is square, in the present invention, convex
It can be the stereochemical structure of regular shape or the stereochemical structure of irregular shape, optionally, positioning protrusion to play 207
207 be the stereochemical structure of regular shape, such as cylindricality, taper or fusiformis are so that it is convenient to design and make determining for stereochemical structure
Position protrusion 207, and location hole 202 is easier to match with corresponding positioning protrusion 207.
Optionally, the height of the positioning protrusion 207 is more than the thickness of the backlight flexible printed circuit board 201.Due to
The height of positioning protrusion 207 is more than the thickness of backlight flexible printed circuit board 201, is carrying out panel flexible printed circuit board 204
During with the contraposition of backlight flexible printed circuit board 201, convenient for seeing whether that positioning protrusion 207 has already passed through location hole 202, so as to
Complete the contraposition of two flexible printed circuit boards；In addition, when being welded after contraposition, in order to keep two flexible print circuits
The fitting of plate can be placed on finger on positioning protrusion 207, utilize the elastic by backlight flexible printed circuit board 201 of finger tripe
It is pressed on the surface of panel flexible printed circuit board 204 so that pad 206 comes into full contact with welding ends 203, improves welding matter
Amount.
A kind of liquid crystal display device has used the present embodiment backlight module recited above, wherein, liquid crystal display device can
Think mobile phone display screen, flat-panel monitor and console display etc..Fig. 6 is the liquid crystal using backlight module according to the present embodiment
The schematic diagram of display device, with reference to Fig. 6, liquid crystal display device includes being printed by backlight flexible printed circuit board 201 and panel flexibility
The backlight module of the compositions such as printed circuit board 204, backlight 209 and glue frame 210.About backlight module, backlight 209 and glue frame
Operation principle of 210 grades in liquid crystal display device, is well known to those skilled in the art, details are not described herein.In addition,
As shown in fig. 6, the amplified figure of B area that dotted line surrounds refers to Fig. 5.As seen from Figure 5, backlight module includes：Backlight is soft
Property printed circuit board 201, including a location hole 202；Panel flexible printed circuit board 204, including one and location hole 202
The match and positioning protrusion 207 made by conductive material and a capture pad 208 for being located at 207 lower section of positioning protrusion, and
Positioning protrusion 207 is grounded by capture pad 208.By the way that positioning protrusion 207 is passed through location hole 202, backlight flexibility print is realized
The contraposition of printed circuit board 201 and panel flexible printed circuit board 204, obtains that contraposition accuracy is high, welds after contraposition and more stablizes
And there is the backlight module of electrostatic protection effect during contraposition, so as to be conducive to improve the quality of liquid crystal display device and make
Use the service life.
The backlight module and liquid crystal display device that second embodiment of the invention proposes, by backlight flexible print circuit
On plate 201 set a location hole 202 and on panel flexible printed circuit board 204 set one it is matched with location hole 202
And it is located at the capture pad 208 of 207 lower section of positioning protrusion by the positioning protrusion 207 of conductive material making and one, wherein, it is fixed
Position protrusion 207 is grounded by capture pad 208, backlight flexible printed circuit board 201 and panel flexible printed circuit board 204 into
During row contraposition, contraposition efficiency and contraposition accuracy can be improved, and the welding after contraposition can be made more to stablize；In addition, also
It can play the role of electrostatic protection.
Note that it above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiment described here, can carry out for a person skilled in the art various apparent variations,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
It can include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (6)
1. a kind of backlight module, which is characterized in that including：
Backlight flexible printed circuit board, including at least one location hole；
Panel flexible printed circuit board, including at least one and matched positioning protrusion of the location hole；
Wherein, the location hole is set to flexible region on the flexible printed circuit board, the size of the location hole
It is less than the size of the positioning protrusion with the size of the location hole equal in magnitude or described of the positioning protrusion；
The height of the positioning protrusion is more than the thickness of the backlight flexible printed circuit board；
The material of the positioning protrusion is conductive material；
The panel flexible printed circuit board further includes the capture pad below the positioning protrusion, the positioning protrusion with
Capture pad is electrically connected, and makes the convex through the conducting wire in the panel flexible printed circuit board by the capture pad
Ground connection is played, to export the electrostatic that friction generates when the positioning protrusion is positioned with the location hole.
2. backlight module according to claim 1, which is characterized in that the backlight flexible printed circuit board further includes welding
End, the panel flexible printed circuit board further include to weld together with the welding ends of the backlight flexible printed circuit board
Pad；The location hole is set to the region except the welding ends；The positioning protrusion is set to except the pad
Region.
3. backlight module according to claim 1, which is characterized in that the number of the positioning protrusion and the location hole is
1st, 2,3,4 or 5.
4. backlight module according to claim 1, which is characterized in that the positioning protrusion includes cylindricality, taper or fusiformis.
5. backlight module according to claim 2, which is characterized in that the welding ends of the backlight flexible printed circuit board with
The pad solder of the panel flexible printed circuit board is together.
6. a kind of liquid crystal display device, which is characterized in that including the backlight module as described in any one of claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310616263.0A CN103925517B (en) | 2013-11-27 | 2013-11-27 | A kind of backlight module and liquid crystal display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310616263.0A CN103925517B (en) | 2013-11-27 | 2013-11-27 | A kind of backlight module and liquid crystal display device |
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| Publication Number | Publication Date |
|---|---|
| CN103925517A CN103925517A (en) | 2014-07-16 |
| CN103925517B true CN103925517B (en) | 2018-07-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106970496B (en) | 2017-06-01 | 2021-05-18 | 京东方科技集团股份有限公司 | Array substrate and display device |
| CN108877545B (en) * | 2018-06-29 | 2020-12-22 | 上海天马有机发光显示技术有限公司 | Display device |
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| CN102006726A (en) * | 2010-11-10 | 2011-04-06 | 友达光电股份有限公司 | Composite circuit board device and manufacturing method thereof |
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