CN101571644A - Backboard structure of backlight module - Google Patents
Backboard structure of backlight module Download PDFInfo
- Publication number
- CN101571644A CN101571644A CNA2008100277305A CN200810027730A CN101571644A CN 101571644 A CN101571644 A CN 101571644A CN A2008100277305 A CNA2008100277305 A CN A2008100277305A CN 200810027730 A CN200810027730 A CN 200810027730A CN 101571644 A CN101571644 A CN 101571644A
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- backboard
- circuit board
- backlight module
- pcb
- printed circuit
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Abstract
The invention mainly relates to a backlight module device, in particular to a backboard structure of a backlight module. The backboard structure comprises a framework, a backboard, a driving circuit board, a first fixing element and a second fixing element, wherein the backboard is arranged in the framework and provided with at least one penetrated positioning hole and one positioning part; the driving circuit board is provided with a fixing hole at a position opposite to the positioning part of the backboard; and the first fixing element and the second fixing element respectively correspond to the backboard, the positioning hole and the positioning part of the driving circuit board so as to ensure that the backboard and the driving circuit board are combined and fixed in the framework. The backboard structure can improve the insulating effect of the driving circuit board, reduce the occurrence frequency of short circuit of electronic elements and reduce the cost and assembly working hours.
Description
Technical field
The present invention relates generally to a kind of backlight module device, refers in particular to a kind of backboard structure of backlight module.
Background technology
Because liquid crystal panel is not the display device of self-luminosity, must reach display effect with external light source, general liquid crystal panel is almost visited and is used module backlight, liquid crystal panel is even, the light of high brightness source and module backlight mainly provides, point or linear light sources that ultimate principle system will use always see through the area source product that succinct effectively phototransformation becomes high brightness and homogeneous briliancy.
And in recent years along with the progress of flat-panel screens industry, the lifting of LCD manufacturing technology, though drive the decline of flat-panel screens cost, the profit of product is also taken advantage of a situation and is caused a large amount of production and reduce along with the maturation of production technology.Be with, must in the design of product each several part, pursue and simplify, omit member to reduce cost to maintain to possess under the due function.Wherein, under the trend of large scale and low price, module backlight is in the market demands of considering lightweight, slimming, low power consumption, high brightness and reducing cost, for remaining on the competitive power of future market, the module backlight that exploitation and design are novel and the new manufacturing technology of ejection formation are the direction and the important topics of making great efforts.
In the cost structure of flat-panel screens, module backlight occupies 16%, inferior to colored filter and drive IC, account for the 3rd, because the technical threshold of module backlight is lower than other key part and component, and belong to the demanding industry of labour's centralized production and manufacturing management, therefore module backlight is produced one of important topic of reducible cost.
See also Fig. 1 to shown in Figure 3, it has a metal backing 10, and metal backing 10 1 sides are provided with one drive circuit plate 11 (source driver IC; COF), drive circuit board 11 links a printed circuit board (PCB) (Printed circuit board, PCB) 12, metal backing 10 opposite sides then are provided with light guide plate 15 and the liquid crystal panel of being made up of colored filter 14 and glass substrate 13 in regular turn, and a plastic cement frame 16 can be fixed in a chase 17 after placing metal backing 10 and glass substrate 13 to make its each elements combination between the rear end before; The above-mentioned genealogy of law of doing utilizes punching press to form salient point (crateriform) 18 metal backing 10, utilize this salient point 18 as fixed printed circuit board 12 again, and printed circuit board (PCB) 12 has many holes (via), therefore metal backing 10 and printed circuit board (PCB) 12 fixing places have possibility of short circuit, paste on metal backing 10 and salient point 18 in order to insulation so generally use electro-insulating rubber 19; Therefore, on the flow process of making, be considerably complicated and must expend higher processing procedure and material cost.
Summary of the invention
The present invention's fundamental purpose is, a kind of backboard structure of backlight module is provided, and it is to form salient point by the plastic cement frame to replace the backboard salient point, reaches protection module backlight and fixed printed circuit board.
Another object of the present invention is, a kind of backboard structure of backlight module is provided, its be by back board structure and plastic cement frame fixedly reach the insulation effect reduce simultaneously material cost with the assembling man-hour.
For reaching above-mentioned purpose, the technical solution used in the present invention is, a kind of backboard structure of backlight module is provided, and this backboard structure of backlight module system includes: a framework, a backboard, place in this framework, it has at least one pilot hole that runs through and at least one location division; The one drive circuit plate, one of this drive circuit board end has installed the fixed orifice that runs through this drive circuit board with respect to the position point of this backboard; One first retaining element, it is corresponding this backboard one end pilot hole set with it, and one second retaining element, its be respectively corresponding this backboard the location division and with the fixed orifice of drive circuit board.Seeing through first and second retaining element is incorporated into backboard and driving circuit with the fixing of its pairing fixed orifice, location division and is fixed in this framework.
Beneficial effect of the present invention is, a kind of backboard structure of backlight module is provided, and it includes, and a framework, a backboard are as in this framework, and this backboard is provided with at least one pilot hole that runs through and location division; The one drive circuit plate is provided with fixed orifice in the position of the location division of this backboard relatively at it; And first retaining element and second retaining element, it is the location division of this backboard of correspondence, pilot hole and drive circuit board respectively, backboard is combined with drive circuit board and is fixed in this framework; To reach the insulation effect that it can improve drive circuit board, reduce the situation that electronic component is short-circuited, reach simultaneously and reduce material basis and the assembling effect in man-hour
Description of drawings
Fig. 1 is the side view of known back light module unit structure
Fig. 2 is that the backboard in the known back light module unit structure combines synoptic diagram with printed circuit board (PCB)
Fig. 3 is the circular support point synoptic diagram of the printed circuit board (PCB) in the known back light module unit structure
Fig. 4 is the side cross-sectional schematic of first kind of backboard structure of backlight module of the present invention
Circular first retaining element of first kind of backboard structure of backlight module of Fig. 5 the present invention and the front schematic view of printed circuit board (PCB)
Square first retaining element of first kind of backboard structure of backlight module of Fig. 6 the present invention and the front schematic view of printed circuit board (PCB)
Fig. 7 is the side cross-sectional schematic of second kind of backboard structure of backlight module of the present invention
Fig. 8 is circular first retaining element of second kind of backboard structure of backlight module of the present invention and the front schematic view of printed circuit board (PCB)
Fig. 9 is square first retaining element of second kind of backboard structure of backlight module of the present invention and the front schematic view of printed circuit board (PCB)
Figure 10 is another design aspect of square first retaining element of second kind of backboard structure of backlight module of the present invention and the front schematic view of printed circuit board (PCB)
Embodiment
In order to save the cost purpose for reaching, it is trend that the length of drive circuit board shortens, and the distance of taking advantage of a situation printed circuit board (PCB) and chase needs shortening, so printed circuit board (PCB) is also relative with the distance of plastic cement frame shortens;
The present invention proposes a kind of backboard structure of backlight module, please refer to shown in Figure 4ly, and backboard structure of backlight module 20 includes a framework 21, and present embodiment is that a chase is an illustrative examples with framework 21; One backboard 22, backboard 22 is a metal material, is to place framework 21, this backboard 22 has at least one pilot hole that runs through 23 and at least one location division 231, and wherein, pilot hole 23 can be square or shape such as circle, present embodiment is illustrative examples with the circle, and location division 231 then is a screw hole; One drive circuit plate 24, this drive circuit board 24 has an integrated circuit control wafer (IC) 241 and a printed circuit board (PCB) (Printed circuit board, PCB) 242, this printed circuit board (PCB) 242 can be a flexible circuit board, and integrated circuit control wafer 241 is carrying soft board wafer package (Chip onFlex, COF), this printed circuit board (PCB) 242 has first surface 421 and second surface 422, and printed circuit board (PCB) 242 1 ends are provided with the fixed orifice 243 that runs through with respect to 231 positions, location division of backboard 22; One first retaining element 26, it is pilot hole 23, one second retaining elements 28 of corresponding backboard 22, it is in order to the location division 231 of the corresponding backboard 22 of difference and the fixed orifice 243 of printed circuit board (PCB) 242, wherein, first retaining element 26 is the plastic cement frame, and second retaining element 28 is a spiral shell spare.As shown in the figure, backboard 22 is to form a salient point 261 by first retaining element 26 with the printed circuit board (PCB) 242 of drive circuit board 24, this salient point 261 is to cooperate the shape of pilot hole 23 to form square or circular moulding, and the other end of pilot hole 23 to the relative positioning portion 231 of the second surface 422 that withstands this printed circuit board (PCB) 242 passed in backboard 22 fronts thus, penetrating the fixed orifice 243 of printed circuit board (PCB) 242 through second retaining element 28 and be locked in the location division 231, backboard 22 and printed circuit board (PCB) 242 are mutually combined;
Please also refer to Fig. 5 and Fig. 6, and have the situation generation of short circuit for fear of the place that backboard 22 engages with printed circuit board (PCB) 242, then can further set up pasting of an electro-insulating rubber 29, in order to insulation at backboard 22 and 242 of printed circuit board (PCB)s; After finishing backboard 22 and the printed circuit board (PCB) 242 of drive circuit board 24 combine, backboard 22 in the framework 21 is assembled light guide plate 291 and the liquid crystal panel of being made up of colored filter 293 and glass substrate 292 in regular turn by interior, and finishes the assembling of backboard structure of backlight module 20 of the present invention;
Please continue with reference to shown in Figure 7, backboard structure of backlight module 30 of the present invention includes a framework 31 in the diagram, and present embodiment is that a chase is an illustrative examples with framework 31; One backboard 32, backboard 32 is a metal material, is to place framework 31, and this backboard 32 has at least one location division 321, and location division 321 is a screw hole; One drive circuit plate 34, this drive circuit board 34 has an integrated circuit control wafer (IC) 341 and a printed circuit board (PCB) (Printed circuit board, PCB) 342, this printed circuit board (PCB) 342 can be a flexible circuit board, and integrated circuit control wafer 341 is carrying soft board wafer package (Chip on Flex, COF), this printed circuit board (PCB) 342 has first surface 423 and second surface 424, and printed circuit board (PCB) 342 1 ends are provided with the fixed orifice 343 that runs through with respect to 321 positions, location division of backboard 32; One first retaining element 36, it is second surface 424, one second retaining elements 38 of corresponding backboard 32, it is in order to the location division 321 of the corresponding backboard 32 respectively fixed orifice 343 of printed circuit board (PCB) 342 therewith, wherein, first retaining element 36 is a plastic cement frame, and two retaining elements 38 are spiral shell spare; As shown in the figure, backboard 32 is to form a salient point 361 by first retaining element 36 with the printed circuit board (PCB) 342 of drive circuit board 44, this salient point 361 can form square or circular moulding, salient point 361 passes backboard 32 and makes backboard 32 front end contact salient points 361 and salient point 361 withstand the other end of relative positioning portion 321 of the second surface 424 of printed circuit board (PCB) 342 by this, see through second retaining element 38 again and penetrate the fixed orifice 343 of this printed circuit board (PCB) 342 and be locked in the location division 321, backboard 32 and printed circuit board (PCB) 342 are mutually combined; Please also refer to Fig. 8 and Fig. 9, in addition, salient point 361 forms in the embodiment of square configuration, salient point 361 can be designed to fully can supporting printing board 342 Design of length, reach more firm fixed effect, promptly as shown in figure 10;
And the situation that has short circuit for fear of the place that backboard 32 engages with printed circuit board (PCB) 342 takes place, and then can further set up pasting of an electro-insulating rubber 39 at backboard 32 and 342 of printed circuit board (PCB)s, in order to insulation; After finishing backboard 32 and the printed circuit board (PCB) 342 of drive circuit board 34 combine, backboard 32 in the framework 31 is assembled light guide plate 391 and the liquid crystal panel of being made up of colored filter 393 and glass substrate 392 in regular turn by interior, and finishes the assembling of backboard structure of backlight module 30 of the present invention.By aforementioned embodiments as can be known, the backboard structure of backlight module that the present invention disclosed, not only can possess the effect even the better fixed form of prior art, the manufacturing process in the time of more reducing assembling simultaneously and the cost of unit materials are to improve the producer's competitive power.
The above is the characteristics by embodiment explanation the present invention, its purpose is had the knack of this operator and can be understood within the present invention and to hold and implement according to this making, and non-limiting the present invention's claim, so, all other do not break away from equivalence modification or the modification that disclosed spirit is finished, and must be included in the described Shen claim.
Claims (29)
1. backboard structure of backlight module, it comprises: a framework, a backboard, one first retaining element and one second retaining element; It is characterized in that this back plate series places in this framework, it has at least one pilot hole that runs through and at least one location division; Again, one of this drive circuit board end has installed the fixed orifice that runs through this drive circuit board with respect to this position point of this backboard; Again, this first retaining element its be to pilot hole that should backboard; This one second retaining element system is respectively to the location division that should backboard and the fixed orifice of this drive circuit board again.
2. the backboard structure of backlight module according to claim 1, wherein, this drive circuit board has an integrated circuit control wafer (IC), and (Printed circuit board, PCB), this printed circuit board (PCB) has first surface and second surface with a printed circuit board (PCB).
3. the backboard structure of backlight module according to claim 1, wherein, this pilot hole can be square or shape such as circle.
4. the backboard structure of backlight module according to claim 1, wherein, this first retaining element is a plastic cement frame.
5. according to claim 4 a described backboard structure of backlight module, wherein, this plastic cement frame system forms a salient point.
6. the backboard structure of backlight module according to claim 5, wherein, this salient point can form circular or square salient point according to this pilot hole shape.
7. the backboard structure of backlight module according to claim 1, wherein, this second retaining element is a spiral shell spare.
8. the backboard structure of backlight module according to claim 1, wherein, this location division is a screw hole, for this second retaining element locking.
9. the backboard structure of backlight module according to claim 2, wherein, this backboard passes this pilot hole the other end to relative this location division of the second surface that withstand this printed circuit board (PCB) by this first retaining element by this backboard front with this printed circuit board (PCB) system, and this second retaining element penetrates this fixed orifice of this printed circuit board (PCB) and is locked in this location division, and this backboard and this printed circuit board (PCB) are mutually combined.
10. the backboard structure of backlight module according to claim 9 wherein, more can be provided with a seal between this backboard and this printed circuit board (PCB), to avoid the generation of this printed circuit board (PCB) short circuit.
11. according to the group back board structure of the described mould backlight of claim 10, wherein, this seal can be an electro-insulating rubber.
12. the backboard structure of backlight module according to claim 2, wherein, this printed circuit board (PCB) is a flexible circuit board.
13. the back light module backboard structure according to claim 2, wherein, this integrated circuit control wafer be the carrying soft board wafer package (Chip on Flex, COF).
14. the backboard structure of backlight module according to claim 1, wherein, this framework can be metal or plastic cement material.
15. the backboard structure of backlight module according to claim 1, wherein, this backboard can be metal material.
16. a backboard structure of backlight module, it comprises: a framework, a backboard, one drive circuit plate, one first retaining element and one second retaining element; It is characterized in that this back plate series places in this framework, it has at least one location division; Again, one of this drive circuit board end has installed the fixed orifice that runs through this drive circuit board with respect to this position point of this backboard; Again, this first retaining element, it is to should the backboard front end and the surface of this drive circuit board; Again, this second retaining element, it is respectively to the location division that should backboard and the fixed orifice of this drive circuit board.
17. the backboard structure of backlight module according to claim 16, wherein, this drive circuit board has an integrated circuit control wafer (IC), and (Printed circuit board, PCB), this printed circuit board (PCB) has first surface and second surface with a printed circuit board (PCB).
18. the backboard structure of backlight module according to claim 16, wherein, this first retaining element is a plastic cement frame.
19. the backboard structure of backlight module according to claim 18, wherein, this plastic cement frame system forms a salient point.
20. the backboard structure of backlight module according to claim 19, wherein, this salient point can form circular or square salient point according to this pilot hole shape.
21. the backboard structure of backlight module according to claim 16, wherein, this second retaining element is a spiral shell spare.
22. the backboard structure of backlight module according to claim 16, wherein, this location division is a screw hole, for this second retaining element locking.
23. the backboard structure of backlight module according to claim 17, wherein, this backboard passes this backboard front end with this printed circuit board (PCB) system by this first retaining element and withstands the other end of relative this location division of the second surface of this printed circuit board (PCB), and this second retaining element penetrates this fixed orifice of this printed circuit board (PCB) and is locked in this location division, and this backboard and this printed circuit board (PCB) are mutually combined.
24. the backboard structure of backlight module according to claim 23 wherein, more can be provided with a seal between this backboard and this printed circuit board (PCB), to avoid the generation of this printed circuit board (PCB) short circuit.
25. according to the group back board structure of the described mould backlight of claim 24, wherein, this seal can be an electro-insulating rubber.
26. the backboard structure of backlight module according to claim 17, wherein, this printed circuit board (PCB) is a flexible circuit board.
27. the back light module backboard structure according to claim 17, wherein, this integrated circuit control wafer be the carrying soft board wafer package (Chip on Flex, COF).
28. the backboard structure of backlight module according to claim 16, wherein, this framework can be metal or plastic cement material.
29. the backboard structure of backlight module according to claim 16, wherein, this backboard can be metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100277305A CN101571644B (en) | 2008-04-28 | 2008-04-28 | Backboard structure of backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100277305A CN101571644B (en) | 2008-04-28 | 2008-04-28 | Backboard structure of backlight module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101571644A true CN101571644A (en) | 2009-11-04 |
| CN101571644B CN101571644B (en) | 2011-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100277305A Expired - Fee Related CN101571644B (en) | 2008-04-28 | 2008-04-28 | Backboard structure of backlight module |
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| Country | Link |
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| CN (1) | CN101571644B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102385180A (en) * | 2011-11-01 | 2012-03-21 | 深圳市华星光电技术有限公司 | Liquid crystal display device based on insulated back plate |
| CN102466901A (en) * | 2010-11-11 | 2012-05-23 | 瀚宇彩晶股份有限公司 | Display device |
| CN102608781A (en) * | 2012-03-26 | 2012-07-25 | 深圳市华星光电技术有限公司 | Liquid crystal display (LCD) module and LCD |
| CN102866519A (en) * | 2012-09-29 | 2013-01-09 | 青岛海信电器股份有限公司 | Liquid crystal module and fixing structure of driver board of liquid crystal module |
| US8724044B2 (en) | 2011-11-01 | 2014-05-13 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Liquid crystal display based on insulation backplane |
| CN104054121A (en) * | 2012-01-13 | 2014-09-17 | 夏普株式会社 | Display device and television receiver |
| CN105467648A (en) * | 2016-01-29 | 2016-04-06 | 京东方科技集团股份有限公司 | Backboard assembly and display device with same |
| CN106019717A (en) * | 2016-08-03 | 2016-10-12 | 江西联思触控技术有限公司 | Backlight module, liquid crystal display module and liquid crystal display device |
| CN106959538A (en) * | 2017-05-26 | 2017-07-18 | 惠科股份有限公司 | A kind of radiator structure and display device |
| CN110568660A (en) * | 2019-08-09 | 2019-12-13 | 惠州市华星光电技术有限公司 | Display device and method for manufacturing the same |
| CN110568667A (en) * | 2019-09-17 | 2019-12-13 | 京东方科技集团股份有限公司 | backlight module and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09147618A (en) * | 1995-11-20 | 1997-06-06 | Sharp Corp | Lighting system |
| KR100546708B1 (en) * | 2003-05-19 | 2006-01-26 | 엘지.필립스 엘시디 주식회사 | Liquid Crystal Display Device |
| JP4468061B2 (en) * | 2004-04-30 | 2010-05-26 | 株式会社 日立ディスプレイズ | Display device |
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2008
- 2008-04-28 CN CN2008100277305A patent/CN101571644B/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102466901A (en) * | 2010-11-11 | 2012-05-23 | 瀚宇彩晶股份有限公司 | Display device |
| CN102385180A (en) * | 2011-11-01 | 2012-03-21 | 深圳市华星光电技术有限公司 | Liquid crystal display device based on insulated back plate |
| US8724044B2 (en) | 2011-11-01 | 2014-05-13 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Liquid crystal display based on insulation backplane |
| CN104054121A (en) * | 2012-01-13 | 2014-09-17 | 夏普株式会社 | Display device and television receiver |
| CN102608781A (en) * | 2012-03-26 | 2012-07-25 | 深圳市华星光电技术有限公司 | Liquid crystal display (LCD) module and LCD |
| CN102608781B (en) * | 2012-03-26 | 2015-09-02 | 深圳市华星光电技术有限公司 | Liquid crystal display |
| CN102866519A (en) * | 2012-09-29 | 2013-01-09 | 青岛海信电器股份有限公司 | Liquid crystal module and fixing structure of driver board of liquid crystal module |
| CN102866519B (en) * | 2012-09-29 | 2015-04-01 | 青岛海信电器股份有限公司 | Liquid crystal module and fixing structure of driver board of liquid crystal module |
| CN105467648A (en) * | 2016-01-29 | 2016-04-06 | 京东方科技集团股份有限公司 | Backboard assembly and display device with same |
| US20180275446A1 (en) * | 2016-01-29 | 2018-09-27 | Boe Technology Group Co., Ltd. | Back panel assembly and display device having the same |
| US10509247B2 (en) * | 2016-01-29 | 2019-12-17 | Boe Technology Group Co., Ltd. | Back panel assembly and display device having the same |
| CN106019717A (en) * | 2016-08-03 | 2016-10-12 | 江西联思触控技术有限公司 | Backlight module, liquid crystal display module and liquid crystal display device |
| CN106959538A (en) * | 2017-05-26 | 2017-07-18 | 惠科股份有限公司 | A kind of radiator structure and display device |
| CN110568660A (en) * | 2019-08-09 | 2019-12-13 | 惠州市华星光电技术有限公司 | Display device and method for manufacturing the same |
| CN110568667A (en) * | 2019-09-17 | 2019-12-13 | 京东方科技集团股份有限公司 | backlight module and display device |
| CN110568667B (en) * | 2019-09-17 | 2022-06-07 | 高创(苏州)电子有限公司 | Backlight module and display device |
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| Publication number | Publication date |
|---|---|
| CN101571644B (en) | 2011-10-26 |
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Granted publication date: 20111026 Termination date: 20190428 |