CN202868487U - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN202868487U CN202868487U CN2012205698887U CN201220569888U CN202868487U CN 202868487 U CN202868487 U CN 202868487U CN 2012205698887 U CN2012205698887 U CN 2012205698887U CN 201220569888 U CN201220569888 U CN 201220569888U CN 202868487 U CN202868487 U CN 202868487U
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- light source
- backlight module
- lgp
- heat
- conducting plate
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Abstract
The utility model discloses a backlight module and a display device. The backlight module comprises a light guide plate, a light source and a heat guide plate, wherein the heat guide plate and the light source are arranged on one side of the back face of the light guide plate, and the light source is arranged between the light guide plate and the heat guide plate and attached on the heat guide plate. The display device comprises the backlight module, the backlight module greatly saves the edge space of the light guide plate, therefore a side frame is narrow, and heat dissipation performance is greatly improved. Simultaneously, when the backlight module is shocked, the light source is not impacted, therefore, use safety of the backlight module is effectively guaranteed. Due to the fact that the backlight module is adopted by the display device, heat dissipation performance of the light source is effectively improved, simultaneously, the side face of the display device can be narrow, and quality of a product is greatly improved.
Description
Technical field
The utility model relates to the Display Technique field, particularly relates to a kind of backlight module and display unit.
Background technology
Backlight module is one of significant components of liquid crystal display, because liquid crystal itself is not luminous, the function of backlight module is exactly well-off brightness and the light source that is evenly distributed, and makes normally show image of liquid crystal display.At present, it is ripe that the Display Technique of liquid crystal display has been tending towards, and especially the design aspect at backlight module also has a great development.Backlight module can also provide light source for display unit such as DPF, Electronic Paper, mobile phones except being applied in the liquid crystal indicators such as liquid crystal display, liquid crystal TV set.
Backlight module is divided into side-light backlight module and down straight aphototropism mode set according to the position difference of light source.Traditional backlight module is take the side incident type as main.The side-light backlight module mainly comprises light source, LGP, heat-conducting plate and backboard.The LGP major function is to convert the spot light of incident to area source by light scattering principle.Light source is positioned at a side or the two relative side of LGP, and then the light that light source sends penetrate by LGP is positive to the conduction of the LGP other end.As shown in Figure 1, a kind of backlight module of prior art comprises LGP 1 ', is positioned at the light source 2 ' of a side of LGP 1 ' and the heat-conducting plate 3 ' that is positioned at the LGP 1 ' back side one side.The back side one side of heat-conducting plate 3 ' is provided with backboard 90 '.It is that frame is more and more narrow that present LCD TV etc. utilizes the development trend of the display unit of backlight module, and the backlight module of said structure is restricted the development of above-mentioned trend; Simultaneously, the illuminated fixing insufficient strength of light source 2 ' (being generally the LED lamp) of side; The fin at the light source 2 ' back side can't directly contact with heat-conducting plate 3 ', but and contact with air, thermal diffusivity is relatively poor thus.
The utility model content
The purpose of this utility model provide a kind of light source heat radiation better, narrower backlight module and the display unit of frame.
Backlight module of the present utility model comprises LGP, light source and heat-conducting plate, and described heat-conducting plate and light source all are arranged at the back side one side of described LGP, and described light source is between described LGP and described heat-conducting plate and be attached on the described heat-conducting plate.
Backlight module of the present utility model, wherein, the exiting surface of described light source is relative with the edge at the back side of described LGP.
Backlight module of the present utility model, wherein, described backlight module also comprises the first catoptric arrangement, and described the first catoptric arrangement is positioned at exiting surface one side of described light source, and the light that is used for described light source is sent reflects to the middle part of described LGP.
Backlight module of the present utility model, wherein, described the first catoptric arrangement comprises the side of the close described light source of described LGP, and the limit of close light source one side of described side is outward-dipping, so that described side is reflected the light that described light source sends to the middle part of described LGP.
Backlight module of the present utility model, wherein, described side is 45 degree near the outward-dipping angle in limit of light source one side.
Backlight module of the present utility model, wherein, described the first catoptric arrangement also comprises the reflector that is attached on the described side, the reflecting surface of described reflector is towards described light source.
Backlight module of the present utility model, wherein, the position corresponding with light source of described heat-conducting plate is provided with groove, and described light source is attached in the described groove.
Backlight module of the present utility model, wherein, the back side of described LGP has the second catoptric arrangement, going back to the inside of described LGP from the light reflection that described LGP penetrates.
Backlight module of the present utility model, wherein, described the second catoptric arrangement is the bottom surface reflector towards the exiting surface of described LGP that is attached at the back side of described LGP.
Backlight module of the present utility model, wherein, described light source comprises a plurality of LED lamps.
Display unit of the present utility model comprises backlight module of the present utility model.
The backlight module of the utility model embodiment, heat-conducting plate and light source all are arranged at the back side one side of LGP, significantly save the LGP rim space, and the backlight module frame of the utility model embodiment is narrower thus; Light source is attached on the heat-conducting plate, and the fin at the light source back side directly contacts with heat-conducting plate, increases substantially its heat dispersion; Backlight module is when being given a shock simultaneously, and light source can not impacted, and effectively guarantees the use safety of backlight module.
Display unit of the present utility model is because adopt backlight module of the present utility model, the thermal diffusivity of Effective Raise light source; Make simultaneously the frame of display unit can become narrower, promoted greatly the quality of product.
Description of drawings
Fig. 1 is the structural representation of the backlight module of prior art;
Fig. 2 is the structural representation of backlight module of the present utility model;
Fig. 3 is the top view of heat-conducting plate and light source among Fig. 2;
Fig. 4 is the assembling schematic diagram of LGP in the backlight module of the present utility model, reflector, bottom surface reflector and heat-conducting plate.
The specific embodiment
As shown in Figure 2, the backlight module of the utility model embodiment comprises LGP 1, light source 2 and heat-conducting plate 3.Heat-conducting plate 3 and light source 2 all are arranged at the back side one side of LGP 1, and light source 2 is between LGP 1 and heat-conducting plate 3 and be attached on the heat-conducting plate 3.The back side one side of heat-conducting plate 3 is provided with backboard 90.Backboard 90 is fixed together by 80 encapsulation of glue frame with LGP 1.
Need to prove that shown in the accompanying drawing is that light source 2 is positioned at the two relative side of LGP 1.Among other embodiment of backlight module of the present utility model, light source can also only be positioned at a side of LGP, perhaps carries out as required other different positions and arranges, and other also can carry out accommodation such as glue frame etc.The two relative side that light source is positioned at LGP is to obtain more uniformly area source for light afterwards by LGP.
The backlight module of the utility model embodiment, heat-conducting plate and light source all are arranged at the back side one side of LGP, significantly save the LGP rim space, and the backlight module frame of the utility model embodiment is narrower thus; Light source is attached on the heat-conducting plate, and the fin at the light source back side directly contacts with heat-conducting plate, increases substantially its heat dispersion; Backlight module is by vibrations the time simultaneously, and light source can not impacted, and effectively guarantees the use safety of backlight module.
For the front from tabula rasa 1 obtains more uniform emergent light, the backlight module of the utility model embodiment, wherein, the exiting surface of light source 2 is relative with the edge at the back side of LGP 1.The light that light source 2 sends will to the other end conduction of LGP 1, then evenly be penetrated by the positive of LGP 1 after entering LGP 1.
Be the further bright dipping quality that strengthens backlight module, the backlight module of the utility model embodiment, wherein, backlight module also comprises the first catoptric arrangement 11.The first catoptric arrangement 11 is positioned at exiting surface one side of light source 2, and the light that is used for light source 2 is sent reflects to the middle part of LGP 1, avoids light to converge at the edge of LGP 1 with this, and light is penetrated more uniformly by the front of LGP 1.
The first catoptric arrangement 11 comprises the side 5 of the close light source 2 of described LGP.The limit of close light source 2 one sides of side 5 is outward-dipping, so that side 5 is reflected the light that light source 2 sends to the middle part of LGP 1.
The backlight module of the utility model embodiment, wherein, side 5 is 45 degree near the outward-dipping angle in limit of light source 2 one sides.
Be the further bright dipping quality that strengthens backlight module, the backlight module of the utility model embodiment, wherein the first catoptric arrangement 11 also comprises the reflector 7 that is attached on the side 5.The reflecting surface of reflector 7 is towards light source 2, is used for avoiding light to be spilt by the edge of LGP 1 with this light reflection of light source 2 inside to LGP 1, and light is penetrated more uniformly by the front of LGP 1.Need to prove; the first catoptric arrangement 11 is not limited to the mode of the 5 attaching reflectors in the side; can also be the mode of the 5 coating reflecting coatings in the side; perhaps 5 structural designs of carrying out (such as groove or projection) in the side; as long as can be so that the light that light source 2 sends can be injected the inside of LGP 1 by the first catoptric arrangement, all in protection domain of the present utility model.
In conjunction with Fig. 3, shown in Figure 4, the backlight module of the utility model embodiment, wherein, the position corresponding with light source 2 of heat-conducting plate 3 is provided with groove 31.Light source 2 is attached in the groove 31.Heat-conducting plate 3 fits tightly together with backboard 90, helps to strengthen the bulk strength of backlight module.
Be the further bright dipping quality that strengthens backlight module, the backlight module of the utility model embodiment, wherein, the back side of LGP 1 has the second catoptric arrangement 12, going back to the inside of LGP 1 from the light reflection that LGP 1 penetrates.
The second catoptric arrangement 12 is the bottom surface reflector 8 that is attached at the back side of LGP 1.Bottom surface reflector 8 is towards the exiting surface of LGP 1.The effect of bottom surface reflector 8 is to stop light loss, makes wide part that light source 2 sends by the positive outgoing from tabula rasa 1.
The backlight module of the utility model embodiment, wherein, light source 2 comprises a plurality of LED lamps.The two relative side that is positioned at LGP with described light source illustrates, and light source 2 comprises that the exiting surface of exiting surface, secondary light source group 22 of the first light source group 21 and secondary light source group 22, the first light source groups 21 is relative with the opposite edges at the back side of LGP 1 respectively.Specifically, the exiting surface of the first light source group 21 is relative with the edge of the first side at the back side of LGP 1, and the exiting surface of secondary light source group 22 is relative with the edge of the Second Edge at the back side of LGP 1.Second Edge and first side are two relative sides.
The side 5 of the close light source 2 of LGP 1 comprises the first side 51 near the first light source group 21.Reflector 7 comprises the first reflector 71 that is pasted with on the first reflector 71, the first sides 51 towards the first light source group 21, is used for the light reflection of the first light source group 21 middle part to LGP 1.
The side 5 of the close light source 2 of LGP 1 comprises the second side 52 near secondary light source group 22, reflector 7 comprises the second reflector 72, be pasted with the second reflector 72 towards secondary light source group 22 on the second side 52, be used for the light reflection of secondary light source group 22 middle part to LGP 1.
The backlight module of the utility model embodiment, wherein, the LED lamp 10 that the first light source group 21, secondary light source group 22 include LED lamp 10, the secondary light source group 22 of a plurality of LED lamp 10, the first light source groups 21 is arranged in parallel along the both sides of heat-conducting plate 3 respectively and is attached in the groove 31 of heat-conducting plate 3.
The display unit of the utility model embodiment comprises backlight module, and above-mentioned backlight module is the backlight module in above-described embodiment.
Display unit of the present utility model is because adopt backlight module of the present utility model, the thermal diffusivity of Effective Raise light source; Make simultaneously the frame of display unit can become narrower, promoted greatly the quality of product.
The above only is preferred embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (11)
1. a backlight module comprises LGP, light source and heat-conducting plate, it is characterized in that, described heat-conducting plate and light source all are arranged at the back side one side of described LGP, and described light source is between described LGP and described heat-conducting plate and be attached on the described heat-conducting plate.
2. backlight module according to claim 1 is characterized in that, the exiting surface of described light source is relative with the edge at the back side of described LGP.
3. backlight module according to claim 2 is characterized in that, described backlight module also comprises the first catoptric arrangement, and described the first catoptric arrangement is positioned at exiting surface one side of described light source, and the light that is used for described light source is sent reflects to the middle part of described LGP.
4. backlight module according to claim 3, it is characterized in that, described the first catoptric arrangement comprises the side of the close described light source of described LGP, the limit of close light source one side of described side is outward-dipping, so that described side is reflected the light that described light source sends to the middle part of described LGP.
5. backlight module according to claim 4 is characterized in that, described side is 45 degree near the outward-dipping angle in limit of light source one side.
6. backlight module according to claim 4 is characterized in that, described the first catoptric arrangement also comprises the reflector that is attached on the described side, and the reflecting surface of described reflector is towards described light source.
7. backlight module according to claim 1 is characterized in that, the position corresponding with light source of described heat-conducting plate is provided with groove, and described light source is attached in the described groove.
8. backlight module according to claim 1 is characterized in that, the back side of described LGP has the second catoptric arrangement, going back to the inside of described LGP from the light reflection that described LGP penetrates.
9. backlight module according to claim 8 is characterized in that, described the second catoptric arrangement is the bottom surface reflector towards the exiting surface of described LGP that is attached at the back side of described LGP.
10. backlight module according to claim 1 is characterized in that, described light source comprises a plurality of LED lamps.
11. a display unit is characterized in that, comprises each described backlight module such as claim 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205698887U CN202868487U (en) | 2012-10-31 | 2012-10-31 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205698887U CN202868487U (en) | 2012-10-31 | 2012-10-31 | Backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202868487U true CN202868487U (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012205698887U Expired - Lifetime CN202868487U (en) | 2012-10-31 | 2012-10-31 | Backlight module and display device |
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| CN (1) | CN202868487U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296002A (en) * | 2014-09-17 | 2015-01-21 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device using same |
| CN104728661A (en) * | 2013-12-19 | 2015-06-24 | 宁波市能捷电子有限公司 | Backlight module for eliminating shadows |
| CN107505671A (en) * | 2017-09-25 | 2017-12-22 | 京东方科技集团股份有限公司 | Backlight module, its preparation method and include its display device |
| CN107797337A (en) * | 2017-09-27 | 2018-03-13 | 联想(北京)有限公司 | A kind of backlight module and electronic equipment |
| CN104728661B (en) * | 2013-12-19 | 2018-08-31 | 宁波市能捷电子有限公司 | Backlight module for eliminating shadow |
-
2012
- 2012-10-31 CN CN2012205698887U patent/CN202868487U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728661A (en) * | 2013-12-19 | 2015-06-24 | 宁波市能捷电子有限公司 | Backlight module for eliminating shadows |
| CN104728661B (en) * | 2013-12-19 | 2018-08-31 | 宁波市能捷电子有限公司 | Backlight module for eliminating shadow |
| CN104296002A (en) * | 2014-09-17 | 2015-01-21 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device using same |
| CN107505671A (en) * | 2017-09-25 | 2017-12-22 | 京东方科技集团股份有限公司 | Backlight module, its preparation method and include its display device |
| WO2019057207A1 (en) * | 2017-09-25 | 2019-03-28 | 京东方科技集团股份有限公司 | Backlight module, manufacturing method therefor, display device comprising same and lighting device |
| US11340393B2 (en) | 2017-09-25 | 2022-05-24 | Fuzhou Boe Optoelectronics Technology Co., Ltd. | Backlight module including side surface having acute angle manufacturing method thereof and display device and illuminating device comprising the same |
| CN107797337A (en) * | 2017-09-27 | 2018-03-13 | 联想(北京)有限公司 | A kind of backlight module and electronic equipment |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |