CN201696997U - Backlight module and liquid crystal display device thereof - Google Patents
Backlight module and liquid crystal display device thereof Download PDFInfo
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- CN201696997U CN201696997U CN2010202322878U CN201020232287U CN201696997U CN 201696997 U CN201696997 U CN 201696997U CN 2010202322878 U CN2010202322878 U CN 2010202322878U CN 201020232287 U CN201020232287 U CN 201020232287U CN 201696997 U CN201696997 U CN 201696997U
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- backlight module
- lgp
- light
- liquid crystal
- splicing
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Abstract
The utility model relates to a backlight module and a liquid crystal display device of the backlight module. The backlight module comprises a plurality of light guide plates and a reflector plate, wherein each light guide plate is provided with an incident part and a splicing part which are arranged oppositely, the incident part and the splicing part which are adjacent to each other are combined with each other to form a splicing light guide plate, a containing space is formed at the combining position of the incident part and the splicing part, a plurality of luminescent components are arranged in the containing space and positioned at the side surface of the incident part, and the reflector plate is arranged under the splicing light guide plate; and the liquid crystal display device comprises the backlight module and a liquid crystal panel which is arranged at one side of the backlight module. The backlight module and the liquid crystal display device of the backlight module have the benefits of not only improving the use efficiency of light, but also providing more uniform area light source.
Description
Technical field
The utility model relates to a kind of liquid crystal indicator, relates in particular to the backlight modular structure in this liquid crystal indicator.
Background technology
In recent years, because liquid crystal indicator has obtained application widely with characteristics such as light, thin, little and power consumption are low on electron image products such as mobile computer, digital camera, TV.
Generally speaking, liquid crystal indicator is made of liquid crystal panel and backlight module.Liquid crystal panel changes the throughput of light in different picture elements zone, and causes light and shade difference in different picture elements zone, to reach the purpose of show image by the rotation of liquid crystal molecule and the effect of Polarizer.
Because liquid crystal itself does not have the characteristics of luminescence, provide area source so need to rely on backlight module.Backlight module can roughly be divided into: lateral incident type backlight module and direct type backlight module, wherein, direct type backlight module needs long light mixing distance to reach the effect of even mixed light, so the thickness of direct type backlight module is thicker, is unsuitable for the making of thin-type display device; The light emitting diode and the lateral incident type backlight module can be arranged in pairs or groups has the advantage of thinner thickness.
Along with liquid crystal indicator waits trend development towards large scale and high contrast gradually, following backlight module is suggested, that is, sliceable a plurality of undersized LGPs of this backlight module and obtain large-area splicing LGP, and, but the mode of also mating area regulation and control backlight (Local Dimming) realizes the display effect of the high dynamic contrast of liquid crystal indicator.
Yet,,, display quality will be worsened so splicing place between each undersized LGP is easy to generate bright line because the briliancy that each undersized LGP had is not quite similar.
Summary of the invention
The utility model technical issues that need to address have provided a kind of backlight module, are intended to solve the above problems;
The utility model also provides the liquid crystal indicator that adopts above-mentioned backlight module.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
Backlight module of the present utility model comprises: most LGPs; Each LGP have relatively to a light in part and a stitching section, this light in part adjacent one another are and this stitching section are bonded to each other and form one and splice LGP, form an accommodation space in the junction of this light in part and this stitching section; A most luminescence component are arranged in this accommodation space and are positioned at the side of this light in part; Also comprise: a reflector plate; Described reflector plate is arranged at the below of this splicing LGP;
Liquid crystal indicator of the present utility model comprises: above-mentioned backlight module; An and liquid crystal panel; Described liquid crystal panel is arranged on a side of this backlight module.
Compared with prior art, the beneficial effects of the utility model are: not only can improve the light service efficiency, and more uniform surface light source can be provided.
Description of drawings
Fig. 1 is the schematic perspective view of a kind of backlight module of the utility model embodiment.
Fig. 2 is the enlarged diagram of the regional A of Fig. 1.
Fig. 3 is the schematic side view of the backlight module of Fig. 1.
Fig. 4 is the enlarged diagram of the regional A of Fig. 3.
Fig. 5 is the schematic perspective view of a kind of LGP of the utility model embodiment.
Fig. 6 is the enlarged diagram of the regional A of Fig. 5.
Fig. 7 is the enlarged diagram of the area B of Fig. 5.
Fig. 8 is the enlarged diagram of the zone C of Fig. 5.
Fig. 9 is the schematic diagram of a kind of liquid crystal indicator of the utility model embodiment.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
The utility model provides a kind of backlight module can solve the bright line problem of splicing LGP in splicing place, and uniform surface light source can be provided.
The utility model provides a kind of liquid crystal indicator, has above-mentioned backlight module, and the image with good display quality can be provided.
The utility model proposes a kind of backlight module, comprising: most LGPs, most individual luminescence component and reflector plates.Each LGP have relatively to light in part and stitching section, light in part adjacent one another are and stitching section are bonded to each other and form the splicing LGP, at the junction of light in part and stitching section formation accommodation space.Luminescence component is arranged in the accommodation space and is positioned at the side of light in part.Reflector plate is arranged on the below of splicing LGP.
In an embodiment of the present utility model, above-mentioned backlight module more comprises circuit board, is arranged at the below of reflector plate, and luminescence component is electrically connected at circuit board, and reflector plate is between circuit board and splicing LGP.
In an embodiment of the present utility model, above-mentioned reflector plate has the hole corresponding to luminescence component, makes luminescence component can pass this hole.
In an embodiment of the present utility model, above-mentioned backlight module more comprises: insulating barrier, be arranged at the below of circuit board, and circuit board is between reflector plate and insulating barrier.
In an embodiment of the present utility model, above-mentioned backlight module more comprises: back of the body frame, insulating barrier, circuit board, reflector plate, luminescence component and splicing LGP are contained in the back of the body frame.
In an embodiment of the present utility model, above-mentioned backlight module more comprises optical diffusion film, is arranged on the one side towards luminescence component of the stitching section of each LGP.
In an embodiment of the present utility model, each above-mentioned LGP has most bar grooves, and LGP is divided into a plurality of light-emitting zones.
In an embodiment of the present utility model, the side of the light in part of each above-mentioned LGP is provided with a micro-structural.
In an embodiment of the present utility model, the side of above-mentioned stitching section at each LGP has a lug.
The utility model proposes a kind of liquid crystal indicator again, comprising: above-mentioned backlight module and liquid crystal panel.This liquid crystal panel is arranged on a side of backlight module.
The utility model adopts a plurality of LGPs to be combined into a splicing LGP, and below this splicing LGP reflector plate is set, and makes the light whole upwards reflection of sheet that can be reflected, and also can improve the light service efficiency to eliminate bright line problem of the prior art.In addition, the one side towards luminescence component in the stitching section of each LGP also is provided with optical diffusion film, and further homogenising is directly by the make progress light of outgoing of luminescence component, so that more uniform surface light source to be provided.
Fig. 1 is the schematic perspective view of a kind of backlight module of the utility model embodiment.Fig. 2 is the enlarged diagram of the regional A of Fig. 1.Fig. 3 is the schematic side view of the backlight module of Fig. 1.Fig. 4 is the enlarged diagram of the regional A of Fig. 3.
Please be simultaneously with reference to Fig. 1～Fig. 4, this backlight module 100 comprises at least: most LGP 110A～110D, most individual luminescence component 120 and reflector plates 130.Each LGP 110A～110D have relatively to light in part 112 and stitching section 114, light in part 112 adjacent one another are is bonded to each other with stitching section 114 and forms a splicing LGP 140, forms accommodation space CS in the junction of light in part 112 and stitching section 114.Luminescence component 120 is arranged among the accommodation space CS and is positioned at the side of light in part 112.Reflector plate 130 is arranged on the below of splicing LGP 140.
Certainly, present embodiment is to form splicing LGP 140 as an example in conjunction with four LGP 110A～110D, in other embodiments, can need splice the LGP of right quantity voluntarily, not limit the LGP that utilizes how much quantity herein and form splicing LGP 140 according to design.
The light that luminescence component 120 sent (not illustrating) can be directly enters among LGP 110A～110D via light in part 112 and conducts.Particularly, make the reflector plate 130 of whole piece be arranged on the below of the splicing LGP 140 that is spliced by a plurality of LGP 110A～110D, thus, not only can be easy to assemble reflector plate 130, also can make conduction in each LGP 110A～110D and the light reflection integrally of outgoing downwards, to obtain uniform surface light source toward above.
In addition, please refer to Fig. 4, backlight module 100 can more comprise optical diffusion film 150, is arranged on the one side towards luminescence component 120 of the stitching section 114 of each LGP 110A～110D.Optical diffusion film 150 can make directly by luminescence component 120 upwards the light of outgoing produce diffusion, and the area source that backlight module 100 is provided is more even.
Referring again to Fig. 1～Fig. 4, backlight module 100 can more comprise circuit board 160, is arranged on the below of reflector plate 130, and luminescence component 120 is electrically connected at circuit board 160, and reflector plate 130 is between circuit board 160 and splicing LGP 140.Via the control circuit on the circuit board 160 (not illustrating), can carry out regional regulation and control backlight (Local Dimming) for luminescence component 120, make all or part of LGP 110A～110D import light, and, can provide luminescence component 120 to carry out luminous required electric power via circuit board 160.Luminescence component 120 can be light emitting diode (LED), organic electric exciting light-emitting diode (OLED) or spot light with similar principles.
As shown in Figure 2, reflector plate 130 can have the hole H corresponding to luminescence component 120, makes luminescence component 120 can pass hole H.This hole H can be the hole of a strip, makes all luminescence components 120 pass reflector plate 130, and perhaps, this hole H also can be most holes, and each hole H makes luminescence component 120 pass reflector plate 130 separately corresponding to each luminescence component 120.
Referring again to Fig. 1～Fig. 4, backlight module 100 can more comprise: insulating barrier 170, be arranged on the below of circuit board 160, and circuit board 160 is between reflector plate 130 and insulating barrier 170.Insulating barrier 170 can make between circuit board 160 and the extraneous conductive component (not illustrating) and produce the electric insulation effect, avoids extraneous conductive component to produce the damages that discharge effect caused for circuit board 160 and luminescence component 120.
In addition, as shown in Figure 3, backlight module 100 also can comprise: back of the body frame 180, insulating barrier 170, circuit board 160, reflector plate 130, luminescence component 120 and splicing LGP 140 are placed in the back of the body frame 180.Because general back of the body frame 180 is that metal is made, this moment, insulating barrier 170 can be brought into play above-mentioned electric insulation effect.
Fig. 5 is the schematic perspective view of a kind of LGP of the utility model embodiment.Fig. 6 is the enlarged diagram of the regional A of Fig. 5.Fig. 7 is the enlarged diagram of the area B of Fig. 5.Fig. 8 is the enlarged diagram of the zone C of Fig. 5.
This sentences single LGP 110A and describes as an example, and the concrete structure of LGP 110B～110D is identical with LGP 110A.Please be simultaneously with reference to Fig. 5～Fig. 8, LGP 110A have relatively to light in part 112 and stitching section 114, light in part 112 adjacent one another are can be bonded to each other with stitching section 114 and form splicing LGP 140.Light in part 112 forms cooperatively interact stepped with stitching section 114.
Can be simultaneously with reference to Fig. 4, the thickness of light in part 112 is also thicker than the thickness of stitching section 114, forms the accommodation space CS that accommodates luminescence component 120 with step therein.In conjunction with after the upper surface of light in part 112 and the upper surface of stitching section 114 come down to be in same horizontal plane; In conjunction with after the lower surface of light in part 112 and the lower surface of stitching section 114 come down to be in same horizontal plane, thus, can make the reflector plate 130 that is positioned at splicing LGP 140 (as shown in Figure 1) below smooth in splicing LGP 140.
As Fig. 5 and shown in Figure 6, LGP 110A can have most bar groove S, and LGP 110A is divided into a plurality of light-emitting zone R.Groove S can make the light of different light-emitting zone R be isolated from each other, and can form each district's while or not luminous simultaneously effect.Groove S makes when can utilize LGP 110A ejection formation, or utilizes groover (not illustrating) to make.
As Fig. 5 and shown in Figure 7, the side of the light in part 112 of LGP 110A can be provided with a micro-structural MS.This micro-structural MS can be a plurality of minute grooves.Utilize micro-structural MS, can impel the light that comes from the luminescence component 120 that is arranged on light in part 112 sides to enter among the LGP 110A, to improve the light utilization ratio.
As Fig. 5 and shown in Figure 8, the side of the stitching section 114 of LGP 110A can have a lug P.The coupling unit (not illustrating) that this lug P could be used for and carry on the back frame 180 couples, so that LGP 110A can stably be fixed in the back of the body frame 180.
Fig. 9 is the schematic diagram of a kind of liquid crystal indicator of the utility model embodiment.This liquid crystal indicator 200 can comprise: above-mentioned backlight module 100 and liquid crystal panel 210.This liquid crystal panel 210 is arranged at a side of backlight module 100.Because this liquid crystal indicator 200 has above-mentioned backlight module 100, and the image of good quality can be provided.Particularly, above-mentioned backlight module 100 uses splicing LGP 140, so be particularly suitable for making large-sized LCD TV.
In sum, backlight module of the present utility model and liquid crystal indicator have the following advantages at least:
Adopt a plurality of LGPs to be spliced into a splicing LGP, and a reflector plate is set below this splicing LGP, thus, can make even reflection ray, and eliminate the bright line problem and can improve the light service efficiency.In addition, the one side towards luminescence component in the stitching section of LGP is provided with optical diffusion film, and the upwards light of outgoing of luminescence component is spread, and can further improve the bright problem of mistake that the splicing LGP causes because of luminescence component in splicing place.Therefore, this backlight module is not only assembled easily and uniform surface light source can be provided.
Though the utility model discloses as above with embodiment; right its is not in order to limit the utility model; has common knowledge under any in the technical field; in the spirit and scope that do not break away from the utility model; when doing a little change and retouching, so the protection domain of the utility model is as the criterion with appending claims.
Claims (10)
1. a backlight module comprises: most LGPs; It is characterized in that: each LGP have relatively to a light in part and a stitching section, this light in part adjacent one another are and this stitching section are bonded to each other and form one and splice LGP, form an accommodation space in the junction of this light in part and this stitching section; A most luminescence component are arranged in this accommodation space and are positioned at the side of this light in part; Also comprise: a reflector plate; Described reflector plate is arranged at the below of this splicing LGP.
2. backlight module according to claim 1 is characterized in that: also comprise a circuit board; Described circuit board is arranged on the below of this reflector plate, and those luminescence components are electrically connected at this circuit board, and this reflector plate is between this circuit board and this splicing LGP.
3. backlight module according to claim 2 is characterized in that: this reflector plate has the hole corresponding to those luminescence components, and those luminescence components can pass this hole.
4. backlight module according to claim 2 is characterized in that: also comprise: an insulating barrier; Described insulating barrier is arranged on the below of this circuit board, and this circuit board is between this reflector plate and this insulating barrier.
5. backlight module according to claim 4 is characterized in that: also comprise: a back of the body frame; This insulating barrier, this circuit board, this reflector plate, those luminescence components and this splicing LGP are placed in this back of the body frame.
6. backlight module according to claim 1 is characterized in that: also comprise an optical diffusion film; Described optical diffusion film is arranged on the one side towards those luminescence components of this stitching section of each LGP.
7. backlight module according to claim 1 is characterized in that: each LGP has most bar grooves, and this LGP is divided into a plurality of light-emitting zones.
8. backlight module according to claim 1 is characterized in that: the side of this light in part of each LGP is provided with a micro-structural.
9. backlight module according to claim 1 is characterized in that: the side in this stitching section of each LGP has a lug.
10. a liquid crystal indicator is characterized in that: comprising: just like 1 to the 9th each described backlight module of claim the; An and liquid crystal panel; Described liquid crystal panel is arranged on a side of this backlight module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202322878U CN201696997U (en) | 2010-06-18 | 2010-06-18 | Backlight module and liquid crystal display device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202322878U CN201696997U (en) | 2010-06-18 | 2010-06-18 | Backlight module and liquid crystal display device thereof |
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| Publication Number | Publication Date |
|---|---|
| CN201696997U true CN201696997U (en) | 2011-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202322878U Expired - Fee Related CN201696997U (en) | 2010-06-18 | 2010-06-18 | Backlight module and liquid crystal display device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201696997U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606949A (en) * | 2011-01-10 | 2012-07-25 | 苏州茂立光电科技有限公司 | Backlight module and liquid crystal display device |
| CN104536200A (en) * | 2014-12-17 | 2015-04-22 | 广东长虹电子有限公司 | Backlight modularizing liquid crystal display |
-
2010
- 2010-06-18 CN CN2010202322878U patent/CN201696997U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606949A (en) * | 2011-01-10 | 2012-07-25 | 苏州茂立光电科技有限公司 | Backlight module and liquid crystal display device |
| CN104536200A (en) * | 2014-12-17 | 2015-04-22 | 广东长虹电子有限公司 | Backlight modularizing liquid crystal display |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110105 Termination date: 20160618 |
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| CF01 | Termination of patent right due to non-payment of annual fee |