CN101424376B - Backlight module for clamping light guide board and display device applying the backlight module - Google Patents
Backlight module for clamping light guide board and display device applying the backlight module Download PDFInfo
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- CN101424376B CN101424376B CN2008101808956A CN200810180895A CN101424376B CN 101424376 B CN101424376 B CN 101424376B CN 2008101808956 A CN2008101808956 A CN 2008101808956A CN 200810180895 A CN200810180895 A CN 200810180895A CN 101424376 B CN101424376 B CN 101424376B
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Abstract
The invention discloses a backlight module for clamping a light guide plate and a display device using the same. The backlight module comprises a light guide plate, a supporting element and a light source module. The light guide plate has a light incident side. The supporting element has a base plate, a side wall and a top plate corresponding to the base plate. The base plate extends from the first end edge of the side wall towards the light guide plate, while the top plate extends from the second end edge towards the light guide plate. The side wall is longer than the top plate, so that the top plate forms at least one notch part which is exposed outside the side wall relative to the side wall. The base plate, the top plate and the side wall form a receiving space. The light incident side of the light guide plate is arranged between the top plate and the base plate. The light source module is arranged in the receiving space and partially exposed in the at least one notch. The light source module has at least one luminescence unit and a circuit substrate. The luminescence unit is arranged on the circuit substrate. The light emitting surface of the luminescence unit is corresponding to the light incident side of the light guide plate.
Description
Technical field
The present invention relates to a kind of backlight module and display unit thereof, and relate in particular to a kind of backlight module and display unit thereof with single holder lightguide plate fixing and light source module.
Background technology
Backlight module (Backl ight module) is one of key part and component of panel of LCD (LCD panel).Because liquid crystal itself is not luminous, so the function of backlight module is well-off brightness, and equally distributed light source, makes the panel of LCD can normal show image.Panel of LCD now has been widely used on the various consumption electronic products such as monitor, mobile computer, digital camera and projector, and this has also driven the demand of backlight module and relevant spare part thereof base.
Along with light emitting diode (LED) technology constantly breaks through, and light emitting diode has low power consumption, environmental protection (no mercury), the life-span is long, volume is little and characteristics such as high color reprodubility, can provide LCD higher color representation, so light emitting diode (LED) is applied in the backlight of display floater gradually.
As shown in Figure 1, it is prior art backlight module 50 decomposing schematic representations.Backlight module 50 is made up of housing 10, LGP 16, reflector plate 18, one group of light-emitting diode (LED) module 20 and one group of L template 30.LGP 16 and reflector plate 18 stack on respectively on the base plate of housing 10, and 20 of light-emitting diode (LED) modules are laid in printed circuit board (PCB) 22 by most light emitting diodes 24 and are formed.When the light-emitting diode (LED) module 20 of prior art was assembled in the sidewall 12 of housing 10, needing was support member with L template 30 in addition, in the crack 14 that is assembled in housing 10, again with most screw lockings location (figure does not show).In other words, light-emitting diode (LED) module 20 is attached on the long limit inwall of L template 30, inserts in the crack 14 of housing 10 with minor face again.This is the side entrance back technology, in order to the side entering type light source to be provided.
Yet, other prior art backlight module 50 package techniques in, also can light-emitting diode (LED) module 20 be attached at the long limit inwall of L template 30 after, directly be located on the sidewall 12 of housing 10, to finish the assembling of backlight module 50.Yet, though prior art assemble light-emitting diode (LED) module in which way, all can't and locate LGP 16 in the assembling light-emitting diode (LED) module, so that influence backlight module optical appearance, therefore, in order to improve prior art problems and to reach other purpose, the inventor proposes following design then.
Summary of the invention
Main purpose of the present invention be to provide a kind of with single spare part fixed light source module and LGP backlight module and use the display unit of this backlight module.
Another purpose of the present invention is to provide a kind of simple and convenient assembly, with the backlight module of saving built-up time and the display unit of using this backlight module.
Another purpose of the present invention is to provide a kind of backlight module of going up luminous light emitting diode (top view emittingLED) and display unit of using this backlight module of being suitable for.
Another purpose of the present invention is to provide a kind of weight saving and cheap backlight modular structure and uses the display unit of this backlight module.
For achieving the above object, the invention provides a kind of backlight module, comprise LGP, support member and light source module.LGP has the light inlet side.Support member has the top board of base plate, sidewall and corresponding base plate.Base plate extends towards LGP from first ora terminalis of sidewall, and top board then extends towards LGP along second ora terminalis of sidewall.The length of sidewall is longer than the length of top board, makes on the top board to be formed with second ora terminalis that at least one barbed portion exposes sidewall to the open air with respect to sidewall.Base plate, top board and sidewall form accommodation space, and the light inlet side of LGP is located between top board and the base plate.Light source module is located in the accommodation space and part is exposed at least one breach.Light source module has at least one luminescence unit and circuit substrate.Luminescence unit is located on the circuit substrate, makes the light inlet side of the corresponding LGP of light-emitting area of luminescence unit.
In preferred embodiment, at least one breach comprises first breach and second breach, is formed at the top board both sides respectively, and exposes the two ends of second ora terminalis of sidewall to the open air.In another embodiment, breach is formed between second ora terminalis and the edge of top board with respect to second ora terminalis of sidewall, and this second ora terminalis and top board make breach form a closed perforate.In other different embodiment, breach crosscut top board is to form an open perforate.In addition, the preferable stickup material that more comprises of backlight module is located between sidewall and the circuit substrate, for pasting and the positioned light source module.
And for achieving the above object, the present invention also provides a kind of display unit, comprising: a framework; One display panels is located on this framework; And a backlight module, being set in parallel in this framework with this display panels, this backlight module comprises: a LGP has a light inlet side; One support member, have a base plate, a sidewall and to a top board that should base plate, this base plate extends towards this LGP from one first ora terminalis of this sidewall, this top board then extends towards this LGP along one second ora terminalis of this sidewall, wherein the length of this sidewall is the length of being longer than this top board, make on this top board and be formed with this second ora terminalis that at least one barbed portion exposes this sidewall to the open air with respect to this sidewall, this base plate, this top board and this sidewall form an accommodation space, and this light inlet side of this LGP is held between this top board and this base plate; An and light source module, be located in this accommodation space and part is exposed to this at least one breach, this light source module has an at least one luminescence unit and a circuit substrate, and this luminescence unit is located on this circuit substrate, and a light-emitting area that makes this luminescence unit is to this light inlet side that should LGP.
Backlight module of the present invention and use the display unit of this backlight module, with single spare part fixed light source module and LGP, simple and convenient assembly has been saved built-up time, has alleviated weight and cheap.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is the backlight module exploded view of prior art;
Fig. 2 is the exploded view of support member of the present invention;
Fig. 3 a is the part stereogram of backlight module lightguide plate fixing of the present invention;
Fig. 3 b attaches the enforcement illustration of light source module for the present invention;
Another implements illustration to Fig. 3 c for backlight module of the present invention;
Fig. 4 a is the A-A profile of Fig. 3 a;
Another implements illustration to Fig. 4 b for luminescence unit of the present invention;
Fig. 5 a is the top view of Fig. 3 a;
Fig. 5 b is another enforcement illustration of backlight module support member of the present invention;
Fig. 5 c is another enforcement illustration of backlight module support member of the present invention;
Fig. 5 d is the another enforcement illustration of backlight module support member of the present invention;
Fig. 6 is the exploded view of display unit of the present invention; And
Fig. 7 is the side view of display unit of the present invention.
Wherein, Reference numeral:
100: support member 110: base plate
120: 122: the first ora terminalis of sidewall
Ora terminalis 126 in 124: the second: salient point
130: top board 150: accommodation space
160: breach 200: LGP
164: the second breach of 162: the first breach
210: light inlet side 220: reflecting plate
300: light source module 310: circuit substrate
320: luminescence unit 322: light-emitting area
330: paste material 340: hole
400: single face glue 500: backlight module
700: display unit 710: framework
720: LCD 730: blooming piece
The specific embodiment
The present invention simplifies and assembles backlight module easily for a kind of structure and uses the display unit of this backlight module.In preferred embodiment, the employed light source module of backlight module is light-emitting diode (LED) module (LEDModule), and light source then is light emitting diode (light emitting diode; LED).Light-emitting diode (LED) module can be most single independent LED to be formed or constitutes in modular mode, for example light-emitting diode light bar (LED light bar) etc.In addition, backlight module of the present invention is preferably and is applied in the display panels display unit such as (LCD).Yet, in other different embodiment, also can in advertisement billboard or other display unit, use.
Fig. 2 is the exploded view of backlight module of the present invention.Backlight module 500 of the present invention comprises LGP 200, support member 100 and light source module 300.In the present embodiment, LGP 200 has light inlet side 210, and is preferably the short side that is positioned at LGP 200.Support member 100 preferable top boards 130 with the integrally formed base plate of making 110, sidewall 120 and corresponding base plate 120, and be configured to the plate of a tool C type profile altogether.The integrally formed mode of making described herein comprises bending, punching press or other mode of making that is fit to.Yet in other different embodiment, support member 100 can be respectively also that the single component group is upright to form.
Please also refer to Fig. 2 and Fig. 3 a, base plate 110 is preferably from first ora terminalis 122 of sidewall 120 and extends towards LGP 200, and top board 130 is preferable then to be extended towards LGP 200 along second ora terminalis 124 of sidewall 120.In other words, base plate 110 is preferably with top board 130 and be arranged in parallel, and interconnects with first ora terminalis 122 and second ora terminalis 124 of sidewall 120 respectively.First ora terminalis 122 and second ora terminalis 124 are formed at respectively on the two long ora terminalis of sidewall 120.The length of sidewall 120 is preferably the length of being longer than top board 130, make on the top board 130 to be formed with at least one breach 160 with respect to sidewall 120, and breach 160 exposes second ora terminalis 124 of sidewall 120 to the open air for part.The length of said sidewall 120 or top board 130 is preferably the length of the light inlet side 210 that refers to relative LGP 200.In addition, breach 160 is essentially the appropriate location that is formed on top board 130, and exposes second ora terminalis 124 to the open air.
In embodiment as shown in Figure 2, preferablely on the support member 100 be formed with first breach 162 and second breach 164, and be formed at top board 130 both sides respectively, with the two ends of second ora terminalis 124 that exposes sidewall 120 to the open air.Base plate 110, top board 130 and sidewall 120 further form accommodation space 150, and the light inlet side 210 of LGP 200 is located between top board 130 and the base plate 110, shown in Fig. 3 a.In other words, the light inlet side 210 of LGP 200 is for stretching into slightly in the accommodation space 150, in order to base plate 110 and top board 130 clampings, location.But because base plate 110 and top board 130 clamping light guide boards 200, the relative position that LGP 200 and light source module are 300 can be fixed, therefore, can avoid LGP 200 to rock optics behavior change and the decrease in efficiency that is caused, in addition, in other embodiments, also a breach 160,162 or 164 can only be arranged on the support member 100, or have a breach 160,162 or 164 at least, and present embodiment and Fig. 2 only enumerate wherein a kind of situation, and the present invention is not limited to this.
In addition, light source module 300 is preferably to paste material 330 and is attached on the sidewall 120 of support member 100, makes the light inlet side 210 of the light-emitting area 322 corresponding LGPs 200 of luminescence unit 320.In other words, pasting material 330 is between circuit substrate 310 and sidewall 120, for positioned light source module 300.Stickup material 330 described herein comprises hot-setting adhesive, double faced adhesive tape, single face glue or other adhesive material that is fit to.Using double faced adhesive tape when pasting material 330, can be about to earlier double faced adhesive tape wherein one side be attached on the another side of circuit substrate 310 relative luminescence units 320; Then circuit substrate 310 is stretched in the accommodation space 150 of support member 100.Before the sidewall 120 of support member 100, can help positioned light source module 300 at permanent circuit substrate 310 prior to first breach 162 and second breach 164, the another side with double faced adhesive tape is fixed on the support member 100 again.In addition, when using double faced adhesive tape as stickup material 330, also can be earlier with on the sidewall 120 in the accommodation space 150 that wherein simultaneously is attached to support member 100 of double faced adhesive tape, tear the fractal film (figure does not show) of double faced adhesive tape another side again from first breach 162 and/or second breach 164, expose the double faced adhesive tape under the shape mould, then circuit substrate 310 is stretched in the accommodation space 150 of support member 100, utilize this face double faced adhesive tape permanent circuit substrate 310 in support member 100 and be arranged in accommodation space 150, because first breach 162 and second breach 164 are arranged, so can conveniently tear the fractal film of double faced adhesive tape, increase technology convenience and speed; In addition, for the technology convenience is considered, the position that two-sided sticker is sticking, also can be different according to design, and the selection of different stickup forms, stickup order and different double faced adhesive tape length arranged, the present invention is not exceeded according to this, and for example: the sticking position of two-sided sticker also can only stick on the sidewall 120 corresponding to the support member 100 at first breach 162 or second breach, 164 places.
In the embodiment shown in Fig. 3 b, if in single face glue mode, single face glue 400 adhesive tapes of acquisition suitable length are pasted respectively on the two ends of gripper shoe 100.One end 400 ' of single face glue 400 is pasted on the surface of circuit substrate 310 and luminescence unit 320 homonymies, the other end 400 " on the lateral surface of the sidewall 120 that is pasted on support member 100 of unrolling again, an also promptly opposite side with circuit substrate 310.Yet in the embodiment shown in Fig. 3 c, also can on the sidewall 120 of gripper shoe 100, salient point 126 be set, form corresponding perforations 340 on the circuit substrate 310 of light source module 300, for salient point 126 engagings.Even in other different embodiment, light source module 300 also can screw togather, riveted or select above-mentioned one of them or compound mode to be positioned on the support member 300.
Fig. 4 a is the profile of backlight module of the present invention.In the present embodiment, luminescence unit 320 is preferably luminous luminescence unit (top view emitting unit), and the light-emitting area 322 of luminescence unit 320 is the light inlet side 210 of corresponding LGP 200.Yet in the embodiment shown in Fig. 4 b, luminescence unit 320 also can be side entering type luminescence unit (side view emitting unit), also be the light inlet side 210 that the light-emitting area 322 of luminescence unit 320 sides is preferably corresponding LGP 200, and circuit substrate 310 is preferably on the base plate 110 that is positioned support member 100.In the present embodiment, paste material 330 preferable being located between base plate 110 and the circuit substrate 310, with positioned light source module 300.Material and the bonding method of pasting material 330 can not repeat them here as previous embodiment.
Fig. 5 a is the top view of backlight module part of the present invention.Top board 130 both sides of support member 100 are formed with first breach 162 and second breach 164, for adjusting or positioned light source module 300.In order to locate more expediently or assembling light source module 300, this creation has designed the support member 100 of different structure for fit applications.In the embodiment shown in Fig. 5 b, be formed at least one breach 160 of top board 130, be preferably on second ora terminalis 124 that equidistantly is distributed in sidewall 120, specifically, at least one breach 160 and the top board 130 that are formed at top board 130 are equidistantly interconnected on second ora terminalis 124 of sidewall 120, are formed at least one breach 160 of top board 130 and partly expose most second ora terminalis 124 respectively to the open air.Yet in the embodiment shown in Fig. 5 c, breach 160 more is formed on second ora terminalis 124 of sidewall 120, exposing its down pairing second ora terminalis 124, and breach 160 is formed in the top board 130, makes the breach 160 in the top board 130 form a closed perforate 160 '.So-called closed perforate 160 ', for being illustrated in the top board 130, this perforate is served as reasons continuously and the ora terminalis that surrounds surrounds, and it all joins perforate 160 ' the defined space with top board 130 on every side, to form closed state.And for example shown in Fig. 5 d, in the present embodiment, breach 160 is preferably at top board 130 and forms at least one open perforate 160 on LGP 200 direction ".At this so-called open opening 160 " for being illustrated on the top board 130, have to be connected with top board 130 around three and to surround opening with an opening direction, this opening direction is the direction towards LGP 200.
As Figure 6 and Figure 7, the present invention more provides a kind of display unit, is used with the backlight module of previous embodiment.Display unit of the present invention comprises framework 710, display panels 720 and backlight module 500.Display panels 720 is located between framework 710 and the backlight module 500, for receiving signal of video signal, to form pixel.In the embodiment as Figure 6 and Figure 7, display unit more comprises most blooming pieces 730, is located at respectively between display panels 720 and the LGP 200.Blooming piece 730 described herein comprises diffuser plate, brightness enhancement film, prismatic lens etc., so that optical characteristics such as light harvesting or even light to be provided.Backlight module 500, display panels 720 are preferably with blooming piece 730 and are set in parallel in the framework 710.
In the present embodiment, light source module 300 is preferably single ground clamping LGP 200 minor face wherein with support member 100, and the luminescence unit of light source module 300 is preferably the backlight technology of adopting top light emitting light emitting diode (topview LED).Yet in other different embodiment, on two minor faces of the difference clamping LGP 200 that light source module 300 and support member 100 also can be paired.Embodiment is described as described above for backlight module 500 other structures, does not repeat them here.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (19)
1. a backlight module is characterized in that, comprises:
One LGP has a light inlet side;
One support member, have a base plate, a sidewall and to a top board that should base plate, this base plate extends towards this LGP from one first ora terminalis of this sidewall, this top board then extends towards this LGP along one second ora terminalis of this sidewall, wherein the length of this sidewall is the length of being longer than this top board, make on this top board and be formed with this second ora terminalis that at least one barbed portion exposes this sidewall to the open air with respect to this sidewall, this base plate, this top board and this sidewall form an accommodation space, and this light inlet side of this LGP is located between this top board and this base plate; And
One light source module, be located in this accommodation space and part is exposed to this at least one breach, this light source module has an at least one luminescence unit and a circuit substrate, and this luminescence unit is located on this circuit substrate, and a light-emitting area that makes this luminescence unit is to this light inlet side that should LGP.
2. backlight module according to claim 1 is characterized in that, this at least one breach comprises one first breach and one second breach, is formed at this top board both sides respectively, and exposes this second ora terminalis of part.
3. backlight module according to claim 1 is characterized in that, this at least one breach and this top board be for equidistantly to be interspersed on this second ora terminalis of this sidewall, and exposes partly this second ora terminalis.
4. backlight module according to claim 1 is characterized in that, this breach is formed between this second ora terminalis and the edge of this top board with respect to this second ora terminalis of this sidewall, and this second ora terminalis and this top board make this breach form a closed perforate.
5. backlight module according to claim 4 is characterized in that, this closed perforate is in this top board, all joins with this top board around this closed perforate, to form the perforate of closed state.
6. backlight module according to claim 1 is characterized in that, this breach is to form an open perforate at this top board on this LGP direction.
7. backlight module according to claim 6 is characterized in that, this open opening is on this top board, has at least around three to be connected and to surround with this top board to have an opening direction, and this opening direction is towards this LGP direction.
8. backlight module according to claim 1 is characterized in that, this light inlet side of part of this base plate of this support member and this this LGP of top board clamping.
9. backlight module according to claim 1 is characterized in that, also comprises one and pastes material, and this stickup material is located between this sidewall and this circuit substrate, for this light source module of location.
10. a display unit is characterized in that, comprises:
One framework;
One display panels is located on this framework; And
One backlight module is set in parallel in this framework with this display panels, and this backlight module comprises:
One LGP has a light inlet side;
One support member, have a base plate, a sidewall and to a top board that should base plate, this base plate extends towards this LGP from one first ora terminalis of this sidewall, this top board then extends towards this LGP along one second ora terminalis of this sidewall, wherein the length of this sidewall is the length of being longer than this top board, make on this top board and be formed with this second ora terminalis that at least one barbed portion exposes this sidewall to the open air with respect to this sidewall, this base plate, this top board and this sidewall form an accommodation space, and this light inlet side of this LGP is held between this top board and this base plate; And
One light source module, be located in this accommodation space and part is exposed to this at least one breach, this light source module has an at least one luminescence unit and a circuit substrate, and this luminescence unit is located on this circuit substrate, and a light-emitting area that makes this luminescence unit is to this light inlet side that should LGP.
11. display unit according to claim 10 is characterized in that, this at least one breach comprises one first breach and one second breach, is formed at this top board both sides respectively, and exposes this second ora terminalis of part.
12. display unit according to claim 10 is characterized in that, this at least one breach and this top board be for equidistantly to be interspersed on this second ora terminalis of this sidewall, and expose partly this second ora terminalis.
13. display unit according to claim 10 is characterized in that, this breach is formed between this second ora terminalis and the edge of this top board with respect to this second ora terminalis of this sidewall, and this second ora terminalis and this top board make this breach form a closed perforate.
14. display unit according to claim 10 is characterized in that, this closed perforate is in top board, all joins with this top board around this closed perforate, to form the perforate of closed state.
15. display unit according to claim 10 is characterized in that, this breach is to form an open perforate at this top board on this LGP direction.
16. display unit according to claim 10 is characterized in that, this open opening is on this top board, has at least around three to be connected and to surround with this top board to have an opening direction, and this opening direction is towards this LGP direction.
17. display unit according to claim 10 is characterized in that, also comprises one and pastes material, this stickup material is located between this sidewall and this circuit substrate, for this light source module of location.
18. display unit according to claim 10 is characterized in that, also comprises one and pastes material, this stickup material is located between this base plate and this circuit substrate, for this light source module of location.
19. display unit according to claim 18 is characterized in that, this pastes its position of material is relative this at least one breach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101808956A CN101424376B (en) | 2008-11-26 | 2008-11-26 | Backlight module for clamping light guide board and display device applying the backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101808956A CN101424376B (en) | 2008-11-26 | 2008-11-26 | Backlight module for clamping light guide board and display device applying the backlight module |
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| CN101424376A CN101424376A (en) | 2009-05-06 |
| CN101424376B true CN101424376B (en) | 2010-07-21 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011132462A1 (en) * | 2010-04-21 | 2011-10-27 | シャープ株式会社 | Lighting device, display device, and television reception device |
| TWI413746B (en) * | 2010-12-30 | 2013-11-01 | Au Optronics Corp | Light source module |
| TWI438375B (en) * | 2011-11-25 | 2014-05-21 | Lextar Electronics Corp | Light module and light component thereof |
| CN102705784B (en) * | 2012-06-06 | 2015-11-25 | 深圳市华星光电技术有限公司 | A kind of optical module location structure, liquid crystal indicator and preparation method thereof |
| US20150138447A1 (en) * | 2012-07-03 | 2015-05-21 | Sharp Kabushiki Kaisha | Lighting device, display device, and television device |
| CN104487761B (en) * | 2012-08-03 | 2016-08-24 | 夏普株式会社 | Illuminator, display device and radiovisor |
| CN103791307A (en) * | 2012-10-26 | 2014-05-14 | 奇菱光电股份有限公司 | Display device and backlight module thereof |
| CN104421686A (en) * | 2013-08-29 | 2015-03-18 | 展晶科技(深圳)有限公司 | Light source device |
| JP6855980B2 (en) * | 2017-08-25 | 2021-04-07 | ブラザー工業株式会社 | Tape cassette |
| CN107861293A (en) * | 2017-12-21 | 2018-03-30 | 惠科股份有限公司 | Liquid crystal display and its backlight module |
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