CN202915279U - Lower brightness enhancement film, backlight module and liquid-crystal display device - Google Patents
Lower brightness enhancement film, backlight module and liquid-crystal display device Download PDFInfo
- Publication number
- CN202915279U CN202915279U CN 201220500808 CN201220500808U CN202915279U CN 202915279 U CN202915279 U CN 202915279U CN 201220500808 CN201220500808 CN 201220500808 CN 201220500808 U CN201220500808 U CN 201220500808U CN 202915279 U CN202915279 U CN 202915279U
- Authority
- CN
- China
- Prior art keywords
- enhancement film
- bright enhancement
- backlight module
- projection
- lower bright
- 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 - Lifetime
Links
Images
Landscapes
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
The utility model provides a lower brightness enhancement film, a backlight module and a liquid-crystal display device. At least one convex block is arranged on the bottom edge of the lower brightness enhancement film close to a light source, and the bottom edge is bonded with shading glue through the convex block, so that membrane materials can be firmly fixed under the condition that no clamp opening is required to be arranged on a plastic frame. Furthermore, the brightness enhancement film and a double faced adhesive tape under a flexible printed circuit (FPC) can also be bonded by arranging notches at the corresponding positions of a lower diffusion membrane and the FPC. The lower brightness enhancement film, the backlight module and the liquid-crystal display device enable fixing of the membrane materials to be firm, the FPC and the double faced adhesive tape are only modified locally according to assemblies of an improved structure, the formed plastic frame produced in volume do not need mold repair treatment, and the mold repair cost is effectively reduced.
Description
Technical field
The application relates to electronic display unit, relates in particular to a kind of lower bright enhancement film, backlight module and liquid crystal indicator.
Background technology
Along with popularizing gradually of liquid crystal indicator, the consumer is also more and more higher to the requirement of LCD product, not only need in shape product more and more thinner, also wish that product can have certain guarantee on structural strength.But often the backlight module in the LCD product can't effectively be fixed the film material when narrow frame design.Please refer to Fig. 1, Fig. 2 and Fig. 3, comprise in the existing backlight module: LGP 11, lower diffusion barrier 12, lower bright enhancement film 13, upper bright enhancement film 14, flexible PCB (FPC Flexible Printed Circuit) 15, double faced adhesive tape 16 and shading glue 17.Wherein the fixing of film material mainly is the thickness that utilizes FPC15 and FPC double faced adhesive tape 16, lower diffusion barrier 12 and lower bright enhancement film 13 is fixed in the film material assembling grove, and for the ease of processing the optical effect of LGP 11, can rides over lower diffusion barrier 12 lengthenings on the FPC15.At this moment, lower bright enhancement film 13 just lacks effective fixation, and for fixing lower bright enhancement film 13, usually adopting at backlight module group rubber frame increases bayonet socket 31, at lower bright enhancement film 13 sides corresponding holding section (not shown) is set and comes diaphragm is fixed.But when backlight module was narrow frame design, the frame of its glue frame narrowed down, and just can't have enough positions that bayonet socket is set and prevent the displacement of film material.And backlight module is in transportation or the process used, has inevitably extraneous all kinds of bumps or falls, if when the film material lacks effective fixation, just can produce the displacement phenomenon.So how effectively fixedly the film material in the backlight module is a problem needing solution badly.
The utility model content
The main technical problems to be solved in the utility model is to provide a kind of lower bright enhancement film, backlight module and liquid crystal indicator, the problem of having avoided the film material in the backlight module effectively to fix.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows:
A kind of lower bright enhancement film, it is used for backlight module; Described lower bright enhancement film extends at least projection on the base near light source one end, and described projection extends to the flexible PCB top, and bonding with the shading glue of described projection top.
Further, at two ends, described lower bright enhancement film base described projection is set.
Further, described projection is rectangle.
The utility model also provides a kind of backlight module, comprising: lower diffusion barrier and above-mentioned lower bright enhancement film; On described lower diffusion barrier, the zone corresponding with described lower bright enhancement film projection is provided with the first breach; Described lower bright enhancement film projection is positioned at described the first breach.
Further, described backlight module also comprises: flexible PCB and double faced adhesive tape, described double faced adhesive tape are positioned at described flexible PCB below; On described flexible PCB, the zone corresponding with described lower bright enhancement film projection is provided with the second breach; Described lower bright enhancement film projection sees through described the first breach and the second breach and described adhered by double sided plaster.
Further, described double faced adhesive tape is positioned at the part of described the second indentation, there toward described lower bright enhancement film direction extension.
Further, the described double faced adhesive tape part that is positioned at described the second indentation, there extends to described lower bright enhancement film base.
Further, the double faced adhesive tape thickness that is positioned at described the second indentation, there is: described double faced adhesive tape body thickness adds described flexible circuit plate thickness.
The utility model also provides a kind of liquid crystal indicator, comprising: display panels, control circuit; Also comprise: above-mentioned backlight module.
The beneficial effects of the utility model are: a kind of lower bright enhancement film, backlight module and liquid crystal indicator are provided, by the base in lower bright enhancement film source ends at least one projection are set, this projection extends to the flexible PCB top, and bonding with the shading glue of top.Such setting can not only make the fixing more firm of film material, improves impact resistance, the anti-drop ability of backlight module, can also satisfy the design needs of the narrow frame of LCD product.
Further, the application also can arrange breach with lower bright enhancement film opposite position on lower diffusion barrier, lower bright enhancement film and lower diffusion barrier can both firmly be bonded on the shading glue, can also by the cooperatively interacting of projection and breach, reduce the assembling stack thickness of film material.
Further, the application can also also offer breach in position corresponding to FPC up and down bright enhancement film, and lengthens the double faced adhesive tape of below, makes lower bright enhancement film not only can carry out bonding with the shading glue of top, while can also carry out with the double faced adhesive tape of below bonding, plays dual fixation.Make the film material in this backlight module fixing more firm, also reduce the assembling stack thickness of film material simultaneously, solve the inadequate problem of the LCD assembling degree of depth.
Simultaneously, project organization related among the application only need to be changed film material, FPC and FPC double faced adhesive tape, and to the processing that need not to repair a die of the glue frame of moulding volume production, just can effectively prevent from the displacement of film material from can effectively reducing the cost that repairs a die.For the backlight module of narrow frame, particularly applicable.
Description of drawings
Fig. 1 is existing backlight module package assembly schematic diagram;
Fig. 2 is A part enlarged diagram among Fig. 1;
Fig. 3 is existing backlight module group rubber frame structural representation;
Fig. 4 is lower bright enhancement film structural representation among the utility model one embodiment;
Fig. 5 is lower diffusion barrier structural representation among the utility model one embodiment;
Fig. 6 is existing flexible circuit board structure schematic diagram;
Fig. 7 is flexible circuit board structure schematic diagram among the utility model one embodiment;
Fig. 8 is for being existing double sided adhesive tape structure schematic diagram;
Fig. 9 is double sided adhesive tape structure schematic diagram among the utility model one embodiment;
Figure 10 is backlight module package assembly schematic diagram among the utility model one embodiment;
Figure 11 is B part enlarged diagram among Figure 10;
Figure 12 is backlight module package assembly schematic diagram among the another embodiment of the utility model;
Figure 13 is C part enlarged diagram among Figure 12.
The specific embodiment
General idea of the present utility model is: the assembly that originally has by backlight module, film material is wherein done effectively fixing, the concrete extension design that can adopt lower bright enhancement film, can be adhesively fixed with the shading glue of top, also can cooperate with miscellaneous part simultaneously, can be adhesively fixed with the double faced adhesive tape of below.Film material in the backlight module can both effectively be fixed, can also improve the impact resistance of backlight module, anti-drop ability, thereby improve the intensity of whole backlight module.For making technical solutions of the utility model and advantage clearer, by reference to the accompanying drawings the utility model is described in further detail below by the specific embodiment.
Please refer to Fig. 4, in the present embodiment, the lower diffusion barrier in the backlight module is that extend forward and bonding with the shading glue of top on the base.Lower bright enhancement film for fixing lower diffusion barrier top, in the present embodiment, a kind of lower bright enhancement film 41 is provided, extend at least projection at this time bright enhancement film 41 on the base near light source one end, this projection extends to the flexible PCB top, its effect is bonding with the shading glue of its top, and lower bright enhancement film 41 is carried out maintenance.Near optional position on the base of light source one end this projection can both be set at this time bright enhancement film 41.More excellent, the projection 411 of extension can be set at the two ends on lower bright enhancement film base.And can be any shape specific to the shape of projection, but in practical operation, more excellent can be set to rectangle.
Please refer to Fig. 5, Figure 10 and Figure 11, because in original film material, the projection 411 of the not lower bright enhancement film 41 in place, flexible PCB top position, increased this projection 411 and shading glue carry out bonding after, in this position, can increase the thickness of a lower bright enhancement film 41, and cause the thickness at this place to increase to some extent.So in order not increase the thickness at this place, in the present embodiment, a kind of backlight module is provided, it comprises the lower bright enhancement film 41 in lower diffusion barrier 51 and above-described embodiment, increase with the bonding thickness that causes of shading glue for fear of increase projections 411 because of lower bright enhancement film 41, can be on lower diffusion barrier 51, the zone corresponding with lower bright enhancement film projection 411, the first breach 511 is set, and lower bright enhancement film projection 411 then is positioned at the first breach 511.Such setting makes projection 411 and the lower diffusion barrier 51 on the lower bright enhancement film 41 in the same plane, carries out bonding with shading glue.The thickness of this position is not thickened because lower bright enhancement film 41 arranges projection 411, also make lower diffusion barrier 51 and bonding tightr, the better effects if of shading glue.Further, if both thickness of projection 411 and lower diffusion barrier 51 is different, then can increase or reduce the thickness of projection 411, so that both can be on the same plane as far as possible, reach best bonding effect; According to same mentality of designing, also can increase or reduce the thickness that lower diffusion barrier 51 rides over the part on the FPC.
Please refer to Fig. 6, Fig. 7, Figure 12 and Figure 13 because do not have on the existing flexible PCB 61 corresponding offer breach make lower bright enhancement film 41 further with adhered by double sided plaster, make the fixed effect can be firmly.So can for firmly fixing, avoid its displacement in order to make film material wherein.Backlight module in the present embodiment also includes flexible PCB 71(FPC, Flexible Printed Circuit) and be used for the double faced adhesive tape of bonding this circuit board.This double faced adhesive tape is positioned at flexible PCB 71 belows; On flexible PCB 71, with not shown among lower bright enhancement film 41(Figure 13) the corresponding zone of projection 411, be provided with the second breach 711; Described lower bright enhancement film projection 411 is through the first breach 511 on the lower diffusion barrier 51 and the second breach 711 and adhered by double sided plaster on the FPC71.It is bonding that this kind setting not only makes lower bright enhancement film be undertaken by the shading glue with the top, can also carry out bonding with the double faced adhesive tape of below.And the position of offering position and lower bright enhancement film projection 411 of the second breach 711 on the first breach 511 on the lower diffusion barrier 51 and the flexible PCB 71 is corresponding, because the projection 411 on the lower bright enhancement film 41 can be arranged on the optional position on its base, thus corresponding the first breach 511 and the second breach 711 also can corresponding being arranged under relevant position on diffusion barrier 51 and the FPC71.
Please refer to Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 12 and Figure 13, because it is for bonding flexible PCB that double faced adhesive tape originally 81 arranges, so may exist the double faced adhesive tape that is positioned at the second breach 711 partly can be fewer, can not with lower bright enhancement film 41 on projection 411 maximum areas carry out bonding.So in the present embodiment, a kind of double faced adhesive tape 91 is provided, this double faced adhesive tape 91 is positioned at the down bright enhancement film 41 directions extension of part at the second breach 711 places, form an extension 911, make both have larger contact area to carry out bonding, more excellent, extension 911, can extend to lower bright enhancement film base, make contact area between the two larger, bonding effect is better.And because of second breach 711 that is provided with on the FPC71, cause lower bright enhancement film 41 can have certain height fall with double faced adhesive tape 91, for can make carry out between projection 411 on the lower bright enhancement film 41 and the double faced adhesive tape 91 smooth bonding, more excellent, the part that double faced adhesive tape 91 can be positioned at the second breach 711 is thickeied, its thickness is: double faced adhesive tape 91 body thickness add flexible PCB 71 thickness, the thickness of double faced adhesive tape 91 is increased, in the same plane with FPC71, make the projection 411 on the lower bright enhancement film 41 smooth bonding closely with double faced adhesive tape 91.
In the present embodiment, also provide a kind of liquid crystal indicator, it comprises: display panels, control circuit.Also comprise: the backlight module in above-described embodiment.
Above content is in conjunction with concrete embodiment further detailed description of the utility model, can not assert that implementation of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (9)
1. lower bright enhancement film, it is used for backlight module; It is characterized in that, described lower bright enhancement film extends at least projection on the base near light source one end, and described projection extends to the flexible PCB top, and bonding with the shading glue of described projection top.
2. lower bright enhancement film as claimed in claim 1 is characterized in that, at two ends, described lower bright enhancement film base described projection is set.
3. lower bright enhancement film as claimed in claim 1 is characterized in that, described projection is rectangle.
4. a backlight module is characterized in that, comprising: each described lower bright enhancement film among lower diffusion barrier and the claim 1-3; On described lower diffusion barrier, the zone corresponding with described lower bright enhancement film projection is provided with the first breach; Described lower bright enhancement film projection is positioned at described the first breach.
5. backlight module as claimed in claim 4 is characterized in that, also comprises: flexible PCB and double faced adhesive tape, described double faced adhesive tape are positioned at described flexible PCB below; On described flexible PCB, the zone corresponding with described lower bright enhancement film projection is provided with the second breach; Described lower bright enhancement film projection sees through described the first breach and the second breach and described adhered by double sided plaster.
6. backlight module as claimed in claim 5 is characterized in that, described double faced adhesive tape is positioned at the part of described the second indentation, there and extends toward described lower bright enhancement film direction.
7. backlight module as claimed in claim 6 is characterized in that, the part that described double faced adhesive tape is positioned at described the second indentation, there extends to described lower bright enhancement film base.
8. such as claim 6 or 7 described backlight modules, it is characterized in that, the double faced adhesive tape thickness that is positioned at described the second indentation, there is: described double faced adhesive tape body thickness adds described flexible circuit plate thickness.
9. a liquid crystal indicator comprises: display panels, control circuit; It is characterized in that, also comprise: each described backlight module among the claim 4-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220500808 CN202915279U (en) | 2012-09-28 | 2012-09-28 | Lower brightness enhancement film, backlight module and liquid-crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220500808 CN202915279U (en) | 2012-09-28 | 2012-09-28 | Lower brightness enhancement film, backlight module and liquid-crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202915279U true CN202915279U (en) | 2013-05-01 |
Family
ID=48163591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220500808 Expired - Lifetime CN202915279U (en) | 2012-09-28 | 2012-09-28 | Lower brightness enhancement film, backlight module and liquid-crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202915279U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929599A (en) * | 2016-06-16 | 2016-09-07 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN108037599A (en) * | 2017-11-27 | 2018-05-15 | 江西合力泰科技有限公司 | A kind of backlight module and detection method |
| CN108426200A (en) * | 2018-03-23 | 2018-08-21 | 京东方科技集团股份有限公司 | Backlight module and display device |
-
2012
- 2012-09-28 CN CN 201220500808 patent/CN202915279U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929599A (en) * | 2016-06-16 | 2016-09-07 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN108037599A (en) * | 2017-11-27 | 2018-05-15 | 江西合力泰科技有限公司 | A kind of backlight module and detection method |
| CN108037599B (en) * | 2017-11-27 | 2023-10-13 | 江西合力泰科技有限公司 | Backlight module and detection method |
| CN108426200A (en) * | 2018-03-23 | 2018-08-21 | 京东方科技集团股份有限公司 | Backlight module and display device |
| US10429571B1 (en) | 2018-03-23 | 2019-10-01 | Beijing Boe Optoelectronics Technology Co., Ltd. | Backlight module and display device |
| CN108426200B (en) * | 2018-03-23 | 2020-07-07 | 京东方科技集团股份有限公司 | Backlight module and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101533184B (en) | Liquid crystal display device | |
| JP5254857B2 (en) | Liquid crystal display | |
| US9846335B2 (en) | Display apparatus | |
| CN103235432B (en) | Liquid crystal indicator | |
| CN103810942A (en) | Curved display apparatus | |
| KR20120078923A (en) | Two-way liquid crystal display device | |
| US9766654B2 (en) | Liquid crystal display device | |
| CN102540519A (en) | Display device | |
| KR102311058B1 (en) | Display device | |
| CN102798095B (en) | Hollow backboard and backlight module utilizing same | |
| CN202677020U (en) | Touch display device | |
| CN108828814A (en) | A kind of mobile terminal | |
| CN202915279U (en) | Lower brightness enhancement film, backlight module and liquid-crystal display device | |
| CN204477809U (en) | Novel backlight module displays device | |
| CN102478726A (en) | Liquid crystal module | |
| CN209591364U (en) | Backlight module and display device | |
| JPH1096922A (en) | Liquid crystal display device | |
| CN202972972U (en) | Plastic frame, backlight module and liquid crystal display (LCD) device | |
| CN204515302U (en) | Novel backlight module displays device | |
| KR20150038876A (en) | Liquid crystal display apparatus | |
| CN204883121U (en) | Full-lamination LCD module | |
| CN205910465U (en) | A backplate structure for backlight unit | |
| CN208937872U (en) | A kind of backlight module | |
| CN209659377U (en) | A kind of cell phone back light source of high transparency | |
| CN202886790U (en) | Liquid crystal module (LCM) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen Technology Co.,Ltd. Hui Library Assignor: SHENZHEN TECHASER TECHNOLOGIES Co.,Ltd. Contract record no.: 2015440020313 Denomination of utility model: Lower brightness enhancement film, backlight module and liquid-crystal display device Granted publication date: 20130501 License type: Exclusive License Record date: 20150827 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Shenzhen Technology Co.,Ltd. Hui Library Assignor: SHENZHEN TECHASER TECHNOLOGIES Co.,Ltd. Contract record no.: 2015440020313 Date of cancellation: 20190426 |
|
| EC01 | Cancellation of recordation of patent licensing contract | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |
|
| CX01 | Expiry of patent term | ||
| IP01 | Partial invalidation of patent right |
Commission number: 5W116927 Conclusion of examination: Claims 1 to 4 of ZL201220500808.2 utility model patent and the technical solution of claim 9 quoting claim 4 are declared invalid, and the patent is maintained valid on the basis of claims 5 to 8 and the technical solution of claim 9 quoting claims 5 to 8 Decision date of declaring invalidation: 20190814 Decision number of declaring invalidation: 41307 Denomination of utility model: A lower intensifying film, backlight module and liquid crystal display device Granted publication date: 20130501 Patentee: SHENZHEN TECHASER TECHNOLOGIES Co.,Ltd. |
|
| IP01 | Partial invalidation of patent right |