CN203615176U - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN203615176U CN203615176U CN201320683327.4U CN201320683327U CN203615176U CN 203615176 U CN203615176 U CN 203615176U CN 201320683327 U CN201320683327 U CN 201320683327U CN 203615176 U CN203615176 U CN 203615176U
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- China
- Prior art keywords
- fpc
- backlight module
- light
- glue
- guide plate
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- 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
- 239000003292 glue Substances 0.000 claims abstract description 38
- 230000002411 adverse Effects 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 239000004973 liquid crystal related substance Substances 0.000 description 9
- 241000254158 Lampyridae Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 201000009310 astigmatism Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
Images
Abstract
The utility model relates to the field of display, in particular to a backlight module and a display device, wherein the backlight module comprises an FPC (flexible printed circuit board), a point light source and a light guide plate, the point light source and the light guide plate are respectively arranged at the lower side of the FPC and is connected with the FPC through FPC back glue, the point light source is arranged at one side of the light guide plate, and the FPC back glue is arranged on the upper surface of the light guide plate and is provided with an opening structure in a position corresponding to the front side of the point light source. The backlight module provided by the utility model adopts the opening type FPC back glue, so the light full reflection condition of a white space region of the light guide plate cannot be damaged, the optical utilization rate of back light is improved, and the backlight brightness is improved by 3 percent to 7 percent; a projected structure is arranged on the opening type FPC back glue, the pasting area between the light guide plate and the FPC is increased, the bonding intensity of the FPC back glue in the backlight module is also increased, and the adverse phenomena, such as light spots and light strips, caused as the FPC can easily float up are avoided.
Description
Technical field
The utility model relates to demonstration field, specifically a kind of backlight module and display unit.
Background technology
Liquid crystal display mainly comprises liquid crystal panel and backlight module two parts.Because liquid crystal panel is not luminous, it is backlight module that imaging needs another crucial assembly.Backlight module is except display panels, can determine the key factor of liquid crystal display imaging screen image quality.Backlight module luminous mass is directly determining the picture quality of liquid crystal display.Light emitting diode (Light Emitting Diode is called for short LED) is more and more wider as the field of display device application.Along with popularizing of LED-backlit module liquid crystal display, LED has become the best backlight module of current liquid crystal display.
At present, along with scientific and technological development, market is also more and more higher to the requirement of backlight module product, ultra-thin, the highlighted main flow that has become market.As shown in Figure 1, Figure 2 and Figure 3, with regard to the abbreviation of FPC(Flexible Printed Circuit, FPC) standby glue 1, FPC mainly contains hollow and three-back-shaped two types for the shape of glue 1.LGP and LED are connected to respectively the lower surface of FPC for glue by FPC, if in the situation of hollow glue or Back Word type, in the time that described FPC sticks on LGP 3 for glue 1, from LED2(light emitting diode) light that sends comprises light I and light II.Most of light, as light I, penetrate LGP stay white area 32, FPC for glue Back Word type or hollow FPC the vacancy corresponding part for glue, thereby can be in the interior LGP luminous zone 31 that reflexes to completely of LGP 3; Another part light, as light II, destroyed for glue 1 by FPC owing to being positioned at the total reflection condition of anterior position that LED2 light irradiates in LGP 3, can just scatter out not arriving LGP luminous zone 31, cause losing of light, cause light efficiency utilization rate backlight to decline.The light losing about light II has how many, is decided by the performance of FPC for width and the adhesive tape of glue 1, and FPC is wider for glue 1, and the loss of light is larger, and FPC1 is more coarse for glue surface, and the loss of light is also just larger.
In order to overcome the above problems, the utility model has done useful improvement.
Utility model content
(1) technical problem that will solve
The purpose of this utility model is to provide a kind of backlight module and the display unit of open-type FPC for glue of applying, and this backlight module can improve the light efficiency utilization rate of backlight module.
(2) technical scheme
The utility model is achieved through the following technical solutions: a kind of backlight module, comprise spot light, LGP and FPC, and spot light and LGP are all arranged on FPC downside, and are all connected with FPC for glue by FPC; Spot light is arranged on a side of described LGP; Described FPC is for being provided with hatch frame at described LGP upper surface and corresponding points light source anterior position on glue.
Further, described spot light is LED.
Further, described FPC is respectively equipped with list structure for glue in the both sides of described spot light; The outer end of described list structure is provided with projective structure.
Wherein, described projective structure is polygon-shaped.
Preferably, described projective structure be shaped as regular polygon.
Further, described FPC is respectively polygon half for the projective structure of the position, both sides of the edge of glue.
Further again, described projective structure be shaped as circle.
The utility model also provides a kind of display unit, comprises the backlight module described in as above any one.
(3) beneficial effect
Compare with product with prior art, the utility model has the following advantages:
1, in the backlight module that the utility model provides, adopt open-type FPC for glue, make LGP stay the light total reflection condition in white area can be not destroyed, improved optics utilization rate backlight, make backlight illumination improve 3%-7%.
2, the projective structure that the utility model is provided with on for glue at open-type FPC, increase the bonding area between LGP and FPC, also just increase FPC in backlight module and, for the sticking strength of glue, avoided flexible circuit board easily to float, caused the bad phenomenon such as firefly, the light velocity.
Accompanying drawing explanation
Fig. 1 is the structure chart of existing FPC for glue;
Fig. 2 is existing back light module unit structure schematic diagram;
Fig. 3 is a structure partial enlarged drawing in Fig. 2;
Fig. 4 is that FPC of the present utility model is for cementing composition one;
Fig. 5 is that FPC of the present utility model is for cementing composition two;
Fig. 6 is the structural representation one of backlight module of the present utility model;
Fig. 7 is back light module unit structure schematic diagram two of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is made a detailed explanation.
The present embodiment provides a kind of backlight module, and this backlight module comprises FPC 4, LED2 and LGP 3, and described LED2 and LGP 3 are all arranged on described FPC 4 downsides, and is all connected with described FPC 4 for glue 1 by FPC; As shown in Figure 6, described LED2 is arranged on a side of described LGP 3; As shown in Fig. 4 and Fig. 7, described FPC is provided with hatch frame 51 for glue 2 at described LGP 3 upper surfaces and corresponding LED2 anterior position.As shown in Figure 6, LGP stays the light total reflection condition in white area 32 can be not destroyed, and light can stay white area 32 to occur after total reflection enters LGP luminous zone 31 to scatter out at LGP again, and very large part is all utilized, improve optics utilization rate backlight, made backlight illumination improve 3%-7%.
In the utility model embodiment, only describe as an example of LED example, and in actual applications, it is LED that spot light is not limited to, and can also be the light source of other emission type such as lasing light emitter etc.
Further, as shown in Fig. 5 and Fig. 7, described FPC is respectively equipped with list structure 52 for glue in the both sides of described LED; The outer end of described list structure 52 is provided with projective structure 53.Open-type FPC is high for glue light efficiency utilization rate, but FPC is inadequate for the stickup between glue and FPC for glue and LGP, FPC, and flexible circuit board easily floats, and causes the phenomenons such as firefly, the light velocity etc. be bad.Adopt projective structure, increased the bonding area between LGP and FPC, also just increased in backlight module FPC for the sticking strength of glue.As long as can increase the scope that the shape of bonding area all belongs to this programme protection.As shown in Figure 5, described projective structure 53 can be polygon-shaped, preferably adopts regular polygon; This projective structure also can adopt circular configuration.Described FPC is respectively polygon half for the projective structure 53 of the position, both sides of the edge of glue 1, reduces as far as possible the contact area of FPC for glue 1 and LGP 3, stays the astigmatism in white area 32 to lose thereby reduce LGP.
The present embodiment also provides a kind of display unit that comprises above-mentioned backlight module, as any product or parts with Presentation Function such as liquid crystal display, LCD TV, liquid crystal display, DPF, mobile phone, panel computers.Etc. display unit.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. a backlight module, is characterized in that, comprises spot light, LGP and FPC, and described spot light and LGP are all arranged on described FPC downside, and is all connected with described FPC for glue by FPC; Described spot light is arranged on a side of described LGP; Described FPC is for being provided with hatch frame at described LGP upper surface and corresponding points light source anterior position on glue.
2. backlight module according to claim 1, is characterized in that, described spot light is LED.
3. backlight module according to claim 1, is characterized in that, described FPC is respectively equipped with list structure for glue in the both sides of described spot light; The outer end of described list structure is provided with projective structure.
4. backlight module according to claim 3, is characterized in that, described projective structure is polygon-shaped.
5. backlight module according to claim 4, is characterized in that, described projective structure be shaped as regular polygon.
6. backlight module according to claim 3, is characterized in that, described FPC is respectively polygon half for the projective structure of the position, both sides of the edge of glue.
7. backlight module according to claim 3, is characterized in that, described projective structure be shaped as circle.
8. a display unit, is characterized in that, comprises the backlight module as described in claim 1-7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320683327.4U CN203615176U (en) | 2013-10-31 | 2013-10-31 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320683327.4U CN203615176U (en) | 2013-10-31 | 2013-10-31 | Backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203615176U true CN203615176U (en) | 2014-05-28 |
Family
ID=50767818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320683327.4U Expired - Lifetime CN203615176U (en) | 2013-10-31 | 2013-10-31 | Backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203615176U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748020A (en) * | 2015-04-27 | 2015-07-01 | 京东方科技集团股份有限公司 | Backlight module, display panel and display device |
| WO2016107090A1 (en) * | 2015-01-04 | 2016-07-07 | 京东方科技集团股份有限公司 | Light guide plate, backlight source and display device |
| CN108124376A (en) * | 2017-12-26 | 2018-06-05 | 江西合力泰科技有限公司 | A kind of backlight FPC plates using FPC glue opening process |
| US10107955B2 (en) | 2015-04-27 | 2018-10-23 | Boe Technology Group Co., Ltd. | Display backlight module having double-side adhesive blocks |
| CN115267963A (en) * | 2022-08-25 | 2022-11-01 | 北京京东方显示技术有限公司 | Backlight module and display device |
-
2013
- 2013-10-31 CN CN201320683327.4U patent/CN203615176U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016107090A1 (en) * | 2015-01-04 | 2016-07-07 | 京东方科技集团股份有限公司 | Light guide plate, backlight source and display device |
| US10267974B2 (en) | 2015-01-04 | 2019-04-23 | Boe Technology Group Co., Ltd. | Light guide plate, backlight and display device |
| CN104748020A (en) * | 2015-04-27 | 2015-07-01 | 京东方科技集团股份有限公司 | Backlight module, display panel and display device |
| US10107955B2 (en) | 2015-04-27 | 2018-10-23 | Boe Technology Group Co., Ltd. | Display backlight module having double-side adhesive blocks |
| CN108124376A (en) * | 2017-12-26 | 2018-06-05 | 江西合力泰科技有限公司 | A kind of backlight FPC plates using FPC glue opening process |
| CN115267963A (en) * | 2022-08-25 | 2022-11-01 | 北京京东方显示技术有限公司 | Backlight module and display device |
| CN115267963B (en) * | 2022-08-25 | 2024-04-05 | 北京京东方显示技术有限公司 | Backlight module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |
|
| CX01 | Expiry of patent term |