CN102352983B - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN102352983B CN102352983B CN201110217120.3A CN201110217120A CN102352983B CN 102352983 B CN102352983 B CN 102352983B CN 201110217120 A CN201110217120 A CN 201110217120A CN 102352983 B CN102352983 B CN 102352983B
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- CN
- China
- Prior art keywords
- circuit board
- flexible circuit
- framework
- backlight module
- support member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000009434 installation Methods 0.000 claims description 22
- 238000005452 bending Methods 0.000 claims description 8
- 230000007306 turnover Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
Landscapes
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
A backlight module is arranged in an electronic device with a shell and comprises a frame, a drive circuit board positioned on the frame, a flexible circuit board arranged on two sides of the drive circuit board in a surrounding way and a support piece connected with the frame, wherein the support piece can protrude out of the flexible circuit board to directly support the shell, so that the flexible circuit board is prevented from contacting end corners of the printed circuit board by the extrusion of the flexible circuit board by the shell, or the support piece is provided with a positioning piece, and the flexible circuit board is supported by the positioning piece to prevent the flexible circuit board from contacting the end corners of the printed circuit board, thereby preventing the flexible circuit board from damaging wires due to compression.
Description
Technical field
The present invention is a kind of backlight module, particularly a kind of backlight module that can avoid flexible circuit board to damage because of pressurized.
Background technology
Liquid crystal indicator has become the main flow of display screen at present, and it is mainly made up of liquid crystal panel and backlight module, and wherein backlight module, in order to provide light source to liquid crystal panel, makes liquid crystal panel show image.For example, backlight module at least comprises the assemblies such as printed circuit board (PCB), light-emittingdiode and light guide plate, wherein light-emittingdiode is welded on the flexible circuit board that is provided with circuit layout, due to the allocation position design of related elements, this flexible circuit board must through bending around after, just can be electrically connected on the printed circuit board (PCB) with lamp source driving element.
Refer to shown in Fig. 1, it is that flexible circuit board 1a bends the diagrammatic cross-section around to printed circuit board (PCB) 1b end face from printed circuit board (PCB) 1b bottom surface, wherein between flexible circuit board 1a and printed circuit board (PCB) 1b, be provided with base 1e, base 1e is in order to carry printed circuit board (PCB) 1b, wherein in being provided with rubber parts 1d near flexible circuit board 1a on the base 1e at folding place.While being urged on flexible circuit board 1a when the stressed crimp of shell 1c, thereby flexible circuit board 1a just can be stressed around folding place and press down and produce distortion, current technological means be utilize rubber parts 1d support buffering flexible circuit board 1a around folding place, and then avoid flexible circuit board 1a there is excessive deformation around folding place, and cause producing around folding place dead folding and the situation of broken string.But according to above-mentioned structural design, in the time that flexible circuit board 1a is subject to shell 1c extruding, to make flexible circuit board 1a contact squeeze on the wedge angle 12 of printed circuit board (PCB) 1b on the contrary, will cause thus flexible circuit board 1a to contact the impaired broken string of circuit layout of part with wedge angle 12.
Hold above-mentionedly, when flexible circuit board is squeezed and will reduces the illumination effect of light-emittingdiode when impaired broken string, and then affect liquid crystal panel show image.Therefore, develop and prevent that the flexible circuit board of backlight module from being the direction that related industry is desired most ardently development because pressurized causes the technology of damage broken string.
Summary of the invention
In view of this, the present invention proposes a kind of backlight module, and it is arranged in the electronic installation with housing, comprises: framework, backboard, drive circuit board and support member, wherein, backboard is mounted in a side of framework, and on backboard, there is opening, and drive circuit board is arranged on backboard, and the opposite side place that is positioned at framework arranges soft electrical plate, in addition, flexible circuit board around the two side faces that is arranged at drive circuit board, has relative first surface, second and in order to connect first surface and second 's connecting structure, support member is between this drive circuit board and the connecting structure of this flexible circuit board, there is the first relative side and the second side, this first side is connected in this framework, this second side is through the first surface of this flexible circuit board and second and higher than the end angle of drive circuit board, it is poor support member to be protruded between one end of flexible circuit board and the surface of flexible circuit board form section, and this support member protrudes from flexible circuit board end and has the top of supporting this housing in order to contact, and, this support member comprises a location division, between this flexible circuit board of bending and locate this flexible circuit board, wherein in the time of housing pressurized, supports support housing contacts the end angle of drive circuit board when avoiding flexible circuit board pressurized.
The present invention also proposes another kind of backlight module, and it is arranged in the electronic installation with housing, comprises: framework; Be positioned at the drive circuit board on framework; Around the flexible circuit board of two side faces that is arranged at drive circuit board; Support member, its one end be connected in framework and the other end between the flexible circuit board of bending and support flexible circuit board and higher than the end angle of drive circuit board, wherein in the time of housing pressurized, supports support flexible circuit board contacts the end angle of drive circuit board when avoiding flexible circuit board pressurized.
Hold above-mentionedly, in the time that user uses electronic installation to apply pressure to the housing of electronic installation because of operation, backlight module of the present invention can utilize its support member having and prevent the situation that flexible circuit board, because of pressurized, broken string occurs to damage.Wherein, above-mentioned support member can utilize and protrude from flexible circuit board and direct support housing, avoids housing extruding flexible circuit board and makes the end angle of flexible circuit board contact print circuit board; Moreover support member can have the keeper between the flexible circuit board of the bending be located at, in the time of housing pressurized and then extruding flexible circuit board, location division can be supported flexible circuit board and avoid the end angle of flexible circuit board contact print circuit board.On the other hand, due to support member energy support housing or flexible circuit board, therefore flexible circuit board can't be because of excessively deformation of pressurized around folding place, and then the problem of avoiding occurring to damage broken string.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Brief description of the drawings
Fig. 1 is the disclosed partial cutaway schematic of being located at the backlight module in electronic installation of prior art;
Fig. 2 A is the local appearance diagrammatic cross-section of the disclosed backlight module of first embodiment of the invention;
Fig. 2 B is the local appearance diagrammatic cross-section of the disclosed backlight module of first embodiment of the invention, and wherein support member has top;
Fig. 3 A and Fig. 3 B are the local appearance diagrammatic cross-section of the disclosed backlight module of first embodiment of the invention, and wherein support member has location division;
Fig. 4 A and Fig. 4 B are the local appearance schematic perspective view of the disclosed backlight module of second embodiment of the invention;
Fig. 4 C is the local appearance diagrammatic cross-section of the disclosed backlight module of second embodiment of the invention;
Fig. 5 is the local appearance schematic perspective view of the disclosed backlight module of third embodiment of the invention;
Fig. 6 is the local appearance schematic perspective view of the disclosed backlight module of fourth embodiment of the invention.
Wherein, Reference numeral
1a.............. flexible circuit board
1b.............. printed circuit board (PCB)
1c.............. shell
1d.............. rubber parts
1e.............. base
12.............. wedge angle
22.............. framework
24.............. drive circuit board
241.............. hold angle
26.............. flexible circuit board
26a.............. first surface
Second of 26b..............
26c.............. connecting structure
261.............. perforation
27.............. backboard
271.............. opening
28.............. support member
28a.............. the first side
28b.............. the second side
28c.............. the first structure
28d.............. the second structure
281.............. top
282.............. connecting portion
284.............. location division
32.............. housing
Embodiment
Below in conjunction with the drawings and specific embodiments, technical solution of the present invention being described in detail, further to understand object of the present invention, scheme and effect, but is not the restriction as claims protection domain of the present invention.
The present invention's backlight module can be applied to the various electronic installations with liquid crystal display screen such as notes type/desktop computer, LCD TV, mobile phone and personal digital assistant, and wherein the kind of above-mentioned electronic installation is only for illustrating, and the present invention is not as limit.
Refer to shown in Fig. 2 A to Fig. 2 B, it is disclosed backlight module in the first embodiment of the present invention, and backlight module can be arranged at the electronic installation inside with housing 32.
Backlight module is mainly made up of with support member 28 framework 22, backboard 27, drive circuit board 24, flexible circuit board 26.
Framework 22, one side is located at the inner face of the housing 32 of electronic installation, and backboard 27 is mounted on the opposite side of this framework 22, on it, there is opening 271, and drive circuit board 24 is arranged on this backboard 27, and be positioned at equally the opposite side of framework 22, it can be the printed circuit board (PCB) that is laid with circuit.Wherein above-mentioned drive circuit board 24 has multiple ends angle 241, and above-mentioned end angle 241 can be fillet (R angle), obtuse angle or acute angle.
Flexible circuit board 26, be arranged between backboard 27 and framework 22, and one end of flexible circuit board 26 passes from opening 271 after extending, and turn down to driving circuit 241 tops, thereby make flexible circuit board 26 form the U-shaped structure that is surrounded on 24 2 sides of drive circuit board, the flexible circuit board 26 of aforementioned U-shaped structure has relative first surface 26a, second 26b and in order to connect the connecting structure 26c of first surface 26a and second 26b, the wherein one side of the comparatively close framework 22 of above-mentioned first surface 26a, that is between backboard 27 and framework 22, and on it, be provided with to provide the light-emittingdiode of light source, and connecting structure 26c is with respect to the end angle 241 of above-mentioned drive circuit board 24.In addition, one end of flexible circuit board 26 can be provided with connector (not diagram), in order to be electrically connected other electronic components.
Support member 28, between drive circuit board 24 and the connecting structure 26c of flexible circuit board 26, it has the first relative side 28a and the second side 28b, the first side 28a is connected in framework 22, the second side 28b is through the first surface 26a of flexible circuit board 26 and second 26b and higher than the end angle 241 of drive circuit board 24, make support member 28 protrude from one end of flexible circuit board 26, and then to form section poor with second 26b of flexible circuit board 26.Wherein support member 28 can be one of the forming and make and its second side 28b can have to contact the top 281 of support housing 32 with framework 22, and the first surface 26a of flexible circuit board 26, second 26b are provided with perforation 261, the second side 28b of support member 28 runs through perforation 261 and protrudes from flexible circuit board 26.
User contacts because operation is used electronic installation the housing 32 that forces in electronic installation, in the time of housing 32 pressurized, the second side 28b of support member 28 can support contact housing 32, while avoiding housing 32 to be urged to flexible circuit board 26 in compressive deformation, and make flexible circuit board 26 contact the end angle 241 of drive circuit board 24, thereby prevent the situation that flexible circuit board 26, because of contact squeeze end angle 241, broken string occurs to damage.
On the other hand, support member 28 can have location division 284, as shown in Fig. 3 A and Fig. 3 B.Above-mentioned location division 284 contacts flexible circuit board 26 between the first surface 26a of flexible circuit board 26 and second 26b and in order to support.Wherein the shape and structure of above-mentioned location division 284 is only for illustrating in diagram, and the present invention is not as limit.
Refer to shown in Fig. 4 A to Fig. 4 C, its by the second embodiment of the present invention exposure be positioned at the backlight module of the electronic installation inside with housing 32.Backlight module is mainly made up of with support member 28 framework 22, drive circuit board 24, flexible circuit board 26, backboard 27, and in Fig. 4 B, for the clear formation position that represents support member, therefore omit backboard 27, wherein said frame 22, drive circuit board 24 with flexible circuit board 26 as described in the first embodiment, only support member 28 difference to some extent.
Support member 28, its one end is connected in framework 22, and the other end is in order to support flexible circuit board 26 and between the first surface 26a and second 26b of flexible circuit board 26.
User contacts because operation is used electronic installation the housing 32 that forces in electronic installation, while being urged to flexible circuit board 26 in housing 32 compressive deformations, flexible circuit board 26 can be supported in the location division 284 of support member 28, and then avoid flexible circuit board 26 to contact the end angle 241 of drive circuit board 24, thereby prevent the situation that flexible circuit board 26, because of contact squeeze end angle 241, broken string occurs to damage.
Hold above-mentioned, two ends of the support member 28 of the present embodiment have orthogonal in fact connecting portion 282 and location division 284, above-mentioned connecting portion 282 is vertical in fact and be connected in framework 22, location division 284 in order to support flexible circuit board 26 and the first surface 26a of the flexible circuit board 26 that be arranged in parallel and second 26b between.Wherein above-mentioned support member 28 can integrally formed or separate setting with framework 22.In addition, the length of the location division 284 that diagram discloses is only for illustrating, and the present invention is not as limit.
Refer to shown in Fig. 5, its by the third embodiment of the present invention exposure be positioned at the backlight module of the electronic installation inside with housing 32.Backlight module is mainly made up of with support member 28 framework 22, backboard 27, drive circuit board 24, flexible circuit board 26, and in Fig. 5, for the clear formation position that represents support member, therefore omit backboard 27, wherein said frame 22, drive circuit board 24 with flexible circuit board 26 as described in the second embodiment, only support member 28 difference to some extent.
Support member 28, its two end has respectively connecting portion 282, and there is the location division 284 that connects above-mentioned two connecting portions 282, location division 284 in order to support flexible circuit board 26 higher than the end angle 241 of drive circuit board 24, above-mentioned connecting portion 282 is vertical in fact and be connected in framework 22, above-mentioned two connecting portions 282, location division 284 and the framework 22 formation open-work that joins, second 26b of flexible circuit board 26 wears the top that lays out open-work and be positioned at location division 284.In addition above-mentioned support member 28 can integrally formed or separate setting with framework 22.
Refer to shown in Fig. 6, its by the fourth embodiment of the present invention exposure be positioned at the backlight module of the electronic installation inside with housing 32.Backlight module is mainly made up of with support member 28 framework 22, backboard 27, drive circuit board 24, flexible circuit board 26, and in Fig. 6, for the clear formation position that represents support member, therefore omit backboard 27, wherein said frame 22, drive circuit board 24 with flexible circuit board 26 as described in the second embodiment, only support member 28 difference to some extent.
Support member 28, there is the first structure 28c and the second structure 28d, above-mentioned the first structure 28c and the second structure 28d all have mutual connecting portion connected vertically 282 and location division 284, wherein connecting portion 282 is vertical in fact and be connected in framework 22, and location division 284 is in order to support flexible circuit board 26 and to be set in parallel between the first surface 26a and second 26b of flexible circuit board 26.Wherein the location division 284 of above-mentioned the first structure 28c and the second structure 28d is not connected to each other for subtend setting.
According to the above, in the time that user uses electronic installation to apply pressure to the housing of electronic installation because of operation, the present invention can provide following means and prevent the situation that flexible circuit board, because of pressurized, broken string occurs to damage: (1) arranges the support member that protrudes from flexible circuit board, the surface of support member and flexible circuit board forms one section of difference, in the time of the housing pressurized of electronic installation, support member is support housing directly, avoid housing extruding flexible circuit board and make the end angle of flexible circuit board contact print circuit board, and because not being subject to housing, pushes flexible circuit board, flexible circuit board because of bending produce can not occur around folding place excessive deformation cause damage broken string problem, (2) support member with location division is set, position point is between the flexible circuit board of bending, in the time of the housing pressurized of electronic installation and then extruding flexible circuit board, location division can be supported flexible circuit board and avoid the end angle of flexible circuit board contact print circuit board, and because flexible circuit board is being supported in location division, therefore can not there is excessive deformation equally around folding place of flexible circuit board and cause damage broken string problem.
Certainly; the present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (8)
1. a backlight module, is arranged in an electronic installation with a housing, it is characterized in that, this backlight module comprises:
One framework;
One drive circuit plate, is positioned at this framework top;
One flexible circuit board, around the two side faces that is arranged at this drive circuit board, has relative first surface, second and in order to connect first surface and second 's connecting structure; And
One support member, between this drive circuit board and the connecting structure of this flexible circuit board, there is the first relative side and the second side, this first side is connected in this framework, this second side is through the first surface of this flexible circuit board and second and higher than the end angle of drive circuit board, this support member is protruded from and between one end of this flexible circuit board and the surface of this flexible circuit board, form one section of difference, in the time of this housing pressurized, this housing of this supports support contacts the end angle of this drive circuit board when avoiding this flexible circuit board pressurized;
Wherein, this support member protrudes from flexible circuit board end to be had in order to contact and supports the top of this housing, and this support member comprises a location division, between this flexible circuit board of bending and locate this flexible circuit board.
2. backlight module as claimed in claim 1, is characterized in that, this flexible circuit board comprises a perforation, in order to wear this support member.
3. backlight module as claimed in claim 1, is characterized in that, more comprises a backboard, is mounted on this framework, and this flexible circuit board is arranged between this backboard and this framework.
4. backlight module as claimed in claim 3, is characterized in that, has an opening on this backboard, and passes from opening after the extension of one end of this flexible circuit board, and turnover is to this drive circuit board top.
5. a backlight module, is arranged in an electronic installation with a housing, it is characterized in that, this backlight module comprises:
One framework;
One backboard, is arranged on this framework;
One drive circuit plate, is arranged on this backboard and is positioned at this framework top simultaneously;
One flexible circuit board, part is arranged between this framework and this backboard, and other parts extended loop winding are placed on this drive circuit board; And
One support member, one end is connected in this framework, the other end is between this flexible circuit board of bending and support this flexible circuit board and higher than the end angle of this drive circuit board, in the time of this housing pressurized, this flexible circuit board of this supports support contacts the end angle of this drive circuit board when avoiding this flexible circuit board pressurized.
6. backlight module as claimed in claim 5, is characterized in that, this support member comprises:
A junction, is arranged on this framework; And
One location division, in succession in this connecting portion, and higher than the end angle of this drive circuit board, in order to support this flexible circuit board.
7. backlight module as claimed in claim 5, is characterized in that, this support member comprises:
Multiple connecting portions, are arranged on this framework; And
One location division, connects this connecting portion, and higher than the end angle of this drive circuit board, in order to support this flexible circuit board.
8. backlight module as claimed in claim 5, is characterized in that, this support member comprises:
Multiple connecting portions, are arranged on this framework; And
Multiple location divisions, lay respectively at this connecting portion, and higher than the end angle of this drive circuit board, in order to support this flexible circuit board, wherein those location divisions are subtend setting.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW099147006 | 2010-12-30 | ||
| TW99147006A TWI410718B (en) | 2010-12-30 | 2010-12-30 | Backlight module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102352983A CN102352983A (en) | 2012-02-15 |
| CN102352983B true CN102352983B (en) | 2014-07-09 |
Family
ID=45576607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110217120.3A Expired - Fee Related CN102352983B (en) | 2010-12-30 | 2011-07-22 | Backlight module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102352983B (en) |
| TW (1) | TWI410718B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990565A (en) * | 2017-04-20 | 2017-07-28 | 深圳市屏柔科技有限公司 | A kind of complete machine production technology of liquid crystal handwriting device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101770112A (en) * | 2008-12-26 | 2010-07-07 | 乐金显示有限公司 | Liquid crystal display device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5026690B2 (en) * | 2005-11-21 | 2012-09-12 | 株式会社ジャパンディスプレイイースト | Display device |
| KR100894603B1 (en) * | 2007-05-16 | 2009-04-24 | 삼성모바일디스플레이주식회사 | Liquid Crystal Display and Manufacturing Thereof |
| TW201024856A (en) * | 2008-12-25 | 2010-07-01 | Chunghwa Picture Tubes Ltd | Backlight module and display module thereof |
| TW201039005A (en) * | 2009-04-22 | 2010-11-01 | Chi Mei Optoelectronics Corp | Panel frame and related flat panel display |
-
2010
- 2010-12-30 TW TW99147006A patent/TWI410718B/en not_active IP Right Cessation
-
2011
- 2011-07-22 CN CN201110217120.3A patent/CN102352983B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101770112A (en) * | 2008-12-26 | 2010-07-07 | 乐金显示有限公司 | Liquid crystal display device |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201227083A (en) | 2012-07-01 |
| TWI410718B (en) | 2013-10-01 |
| CN102352983A (en) | 2012-02-15 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20200722 |
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| CF01 | Termination of patent right due to non-payment of annual fee |