CN100529886C - Backlight module unit and LCD device - Google Patents
Backlight module unit and LCD device Download PDFInfo
- Publication number
- CN100529886C CN100529886C CNB2006100634498A CN200610063449A CN100529886C CN 100529886 C CN100529886 C CN 100529886C CN B2006100634498 A CNB2006100634498 A CN B2006100634498A CN 200610063449 A CN200610063449 A CN 200610063449A CN 100529886 C CN100529886 C CN 100529886C
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- China
- Prior art keywords
- guide plate
- light guide
- draw
- framework
- module backlight
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- Planar Illumination Modules (AREA)
Abstract
The invention relates to a backlight module group and a liquid crystal display device adopting the backlight module group. The backlight module group comprises a light guide plate and a frame holding the light guide plate. The light guide plate comprises an elastic member extending outward along the side of the light guide plate. The frame comprises a slot correspondingly clipping the elastic member, and the slot penetrates the frame. In the process of assembling and disassembling the backlight module group and the liquid crystal display device, the frame is uneasy to be damaged.
Description
Technical field
The present invention relates to a kind of module backlight and the liquid crystal indicator that adopts this module backlight.
Background technology
Because of advantages such as liquid crystal indicator has gently, approaches, little power consumptions, modernized information equipments such as notebook computer, mobile phone, personal digital assistant have been widely used in.
Please refer to Fig. 1, is a kind of perspective exploded view of prior art liquid crystal indicator.This liquid crystal indicator 1 comprises the module backlight 3 of a liquid crystal panel 2 and adjacent this liquid crystal panel 2.
This module 3 backlight comprises an optical diaphragm group 32, a light guide plate 33, a glue frame 34, a plurality of light emitting diode 35 and a flexible circuit board 38.This liquid crystal panel 2, this optical diaphragm group 32 are cascading with this light guide plate 33, these flexible circuit board 38 these a plurality of light emitting diodes 35 of carrying.This optical diaphragm group 32, this light guide plate 33, these a plurality of light emitting diodes 35 are housed in this glue frame 34 with this flexible circuit board 38.
This light guide plate 33 comprises an incidence surface 331, a side 333 and a bottom surface 335 that an exiting surface 332, two is relative.These incidence surface 331 contiguous these a plurality of light emitting diodes 35, this exiting surface 332 and these 331 vertical linking to each other of incidence surface, this bottom surface 335 and these 331 vertical linking to each other and relative this exiting surface 332 of incidence surface, these two sides 333 are oppositely arranged between this exiting surface 332 and this bottom surface 335, and with these 331 vertical linking to each other of incidence surface.A pair of first projection 3330 and one second projection 3331 stretch out from each side 333 respectively, should lay respectively at the two ends of this two side faces 333 to first projection 3330, this second projection 3331 is positioned at the middle part of this side 333, and the thickness of this first projection 3330, second projection 3331 is more smaller than the thickness of this light guide plate 33.This first projection 3330 has the surface with this exiting surface 332 coplanes, and this second projection 3331 has the surface with this bottom surface 335 coplanes.This first projection 3330 cooperates formation pair of lamina structure with this second projection 3331.
This glue frame 34 comprises the sidewall 348 that a underframe 341 is relative with two.The rectangle frame body structure that this underframe 341 is a hollow, it comprises a plurality of first grooves 3411, a plurality of second groove 3412 and a plurality of breach 3410.This first groove 3411 and this second groove 3412 are separately positioned on two relative long limits (not label) of this underframe 341, its notch direction is opposite, and this first groove 3411 and this second groove 3412 are respectively to first projection 3330 and second projection 3331 that should light guide plate 33.This breach 3410 is arranged on the minor face (not label) of underframe 341, and to should a plurality of light emitting diodes 35.This sidewall 348 is asymmetrical U-shaped structures, and it comprises one first wall extension 348a, one second wall extension 348b and one the 3rd wall extension 348c.This first wall extension 348a extends along the long limit of this underframe 341, and this second wall extension 348b, the 3rd wall extension 348c extend along two minor faces of this underframe 341 respectively, and are parallel to each other.The 3rd wall extension 348c of this two side 348 all is positioned at the minor face of these breach 3410 place underframes 3412.The length of this second wall extension 348b is slightly larger than the length of the 3rd wall extension 348c.
Please in the lump with reference to figure 2, be the schematic perspective view after module backlight 3 assemblings of liquid crystal indicator 1 shown in Figure 1.This flexible circuit board 38 is housed in this glue frame 34 successively with this light guide plate 33.First groove, 3411 correspondences of this glue frame 34 are accommodated first projection 3330 of this light guide plate 33, and these second groove, 3412 correspondences are accommodated this second projection 3331, and these breach 3410 correspondences are accommodated this a plurality of light emitting diodes 35.This light guide plate 33 is utilized the mutual snap action of this first projection 3330, second projection 3331 and this first groove 3411, second groove 3412, is fixed in this glue frame 34.
But this glue frame 34 and these light guide plate 33 assembly and disassembly all rely on the elastic deformation of this glue frame 34, make the stressed excessive and distortion that is distorted of this glue frame 34 easily, and when serious even cause this glue frame 34 to damage, practical operation is comparatively inconvenient.
Summary of the invention
In order to solve the easy impaired problem of module assembly and disassembly process framework backlight in the prior art, be necessary to provide a kind of assembly and disassembly process middle frame to be not easy impaired module backlight.
In addition, for the easy impaired problem of the framework that solves liquid crystal indicator assembly and disassembly process module backlight in the prior art, be necessary to provide the framework of module backlight in a kind of assembly and disassembly process to be not easy impaired liquid crystal indicator.
A kind of module backlight, it comprises that a light guide plate and accommodates the framework of this light guide plate.This light guide plate comprises along the outward extending elastic component of its side, this framework comprises the draw-in groove of corresponding this elastic component of engaging, this draw-in groove is through this framework, this light guide plate further comprises an incidence surface, adjacent with this incidence surface two relative side and two strip draw runners, two draw runners vertically stretch out along these two sides respectively, two elastic components stretch out along the side of this two draw runner respectively, this framework also comprises an opening and two chutes, this opening is away from this incidence surface, can be for this light guide plate this framework of coming in and going out, this chute is respectively to should draw runner, and communicates with this opening
A kind of liquid crystal indicator, it comprises the module backlight of a liquid crystal panel and adjacent this liquid crystal panel.This module backlight comprises that a light guide plate and accommodates the framework of this light guide plate.This light guide plate comprises along the outward extending elastic component of its side, this framework comprises the draw-in groove of corresponding this elastic component of engaging, this draw-in groove is through this framework, this light guide plate further comprises an incidence surface, adjacent with this incidence surface two relative side and two strip draw runners, two draw runners vertically stretch out along these two sides respectively, two elastic components stretch out along the side of this two draw runner respectively, this framework also comprises an opening and two chutes, this opening is away from this incidence surface, can be for this light guide plate this framework of coming in and going out, this chute is respectively to should draw runner, and communicates with this opening
Compared with prior art, in the liquid crystal indicator assembling process of above-mentioned module backlight and this module backlight of employing, its framework extruding elastic component, cause elastic component flexural deformation, make light guide plate slip into framework, and rely on elastic component to recover its original shape to stick into draw-in groove, with lightguide plate fixing.In the unloading process, make elastic component flexural deformation and withdraw from draw-in groove with external force, framework extruding elastic component makes elastic component keep distortion to be convenient to light guide plate and skids off framework.In this module backlight and the liquid crystal indicator assembly and disassembly process that adopts this module backlight, mainly rely on elastic component flexural deformation to realize that framework pushes this elastic component, can torsional deformation, also be difficult for impaired.
Description of drawings
Fig. 1 is a kind of perspective exploded view of prior art liquid crystal indicator.
Fig. 2 is the schematic perspective view after the module backlight of liquid crystal indicator shown in Figure 1 is assembled.
Fig. 3 is the perspective exploded view of liquid crystal indicator first embodiment of the present invention.
Fig. 4 is the floor map of the light guide plate of liquid crystal indicator shown in Figure 3.
Fig. 5 is the enlarged diagram of the elastic component of liquid crystal indicator shown in Figure 4.
Fig. 6 is the schematic perspective view after the module backlight of liquid crystal indicator shown in Figure 3 is assembled.
Fig. 7 is the enlarged diagram of VII part among Fig. 6.
Fig. 8 is the structural representation of the liquid crystal indicator second embodiment elastic component of the present invention.
Fig. 9 is the structural representation of the elastic component of liquid crystal indicator the 3rd embodiment of the present invention.
Embodiment
Please refer to Fig. 3, is the perspective exploded view of liquid crystal indicator first embodiment of the present invention.This liquid crystal indicator 4 comprises the module backlight 7 of a liquid crystal panel 5 and adjacent this liquid crystal panel 5.
This module 7 backlight comprises an optical diaphragm group 72, a light guide plate 73, a glue frame 74, a plurality of light emitting diode 75 and a flexible circuit board 78.This liquid crystal panel 5, this optical diaphragm group 72 are cascading with this light guide plate 73, these flexible circuit board 78 these a plurality of light emitting diodes 75 of carrying.This optical diaphragm group 72, this light guide plate 73, these a plurality of light emitting diodes 75 are housed in this glue frame 74 with this flexible circuit board 78.
, be light guide plate 73 floor map of liquid crystal indicator 4 shown in Figure 3 please in the lump with reference to figure 4.This light guide plate 73 comprises an incidence surface 731, the side 733 that an exiting surface 732 is relative with two.This incidence surface 731 contiguous these a plurality of light emitting diodes 75, this exiting surface 732 and these 731 vertical linking to each other of incidence surface, these two sides 733 respectively with this incidence surface 731, these 732 vertical linking to each other of exiting surface.This light guide plate 73 further comprises the draw runner 738 and two elastic components 737 of two strips.Two draw runners 738 vertically stretch out along these two sides 733 respectively, and the thickness of this draw runner 738 is slightly thinner than the thickness of this light guide plate 73.Two elastic components 737 stretch out along the side (not label) of this two draw runner 738 respectively, and are symmetricly set on away from this incidence surface 731 1 ends, and the thickness of this elastic component 737 is identical with the thickness of this draw runner 738.
Please refer to Fig. 5, is the enlarged diagram of liquid crystal indicator elastic component 737 shown in Figure 4.This elastic component 737 comprises a root 7370 and an elastic arm 7371.This root 7370 stretches out from this draw runner 738, and this elastic arm 7371 is one-body molded with this root 7370, forms a bending structure.This elastic arm 7371 is wedge structures of tool one chamfering, itself and this light guide plate 73 tools one determining deviation, and extend along the direction that deviates from this incidence surface 731.
This glue frame 74 comprises a underframe 741 and two opposite side walls 748.This underframe 741 is rectangular hollow frame structures, and it comprises chute 7411 and two draw-in grooves 7412 that a plurality of breach 7410, two is relative.These a plurality of breach 7410 are positioned on the minor face (not label) of this underframe 741, and it is used for correspondence and accommodates this a plurality of light emitting diodes 75.Minor face tool one opening of these underframe 741 relative these breach 7410 (figure does not show), this opening can be for these light guide plate 73 these glue frames 74 of discrepancy.This two chute 7411 lays respectively on the long limit (not label) of this underframe 741, and corresponds respectively to the draw runner 738 of this light guide plate 73, and this chute 7411 is connected with this opening.This two draw-in groove 7412 is positioned at 741 pairs of this underframes should elastic component 737 places, and run through two long limits of this glue frame 74 respectively.Each sidewall 748 is asymmetrical U-shaped structures, and it comprises one first wall extension 748a, one second wall extension 748b and one the 3rd wall extension 748c.This first wall extension 748a extends along a long limit of this underframe 741, and this second wall extension 748b, the 3rd wall extension 748c extend along relative two minor faces of this underframe 741 respectively, and are parallel to each other.The 3rd wall extension 748c of this two opposite side walls 748 all is positioned on the minor face of this this underframe 741 of breach 7410 places.The length of this second wall extension 748b is greater than the length of the 3rd wall extension 748c.
During assembling, the draw runner 738 of this light guide plate 73 slips into this glue frame 74 along the chute 7411 of this glue frame 74, the elastic arm 7371 of this elastic component 737 is subjected to forming the inwall extruding of this chute 7411, to the bent distortion of these light guide plate 73 1 lateral bendings, and slip into this glue frame 74, when this elastic component 737 slides into this draw-in groove 7412 in this chute 7411, the squeezing action power that acts on this elastic arm 7371 discharges, this elastic arm 7371 returns to original shape and is snapped into this draw-in groove 7412, thereby this light guide plate 73 is fixed in this glue frame 74.
Please in the lump with reference to figure 6 and Fig. 7, this flexible circuit board 78, this optical diaphragm group 72, this light guide plate 73 stack gradually and are housed in this glue frame 74.This draw runner 738 also is housed in this glue frame 74 with this light guide plate 73, and this elastic component 737 engages mutually with this draw-in groove 7412.
When this light guide plate 73 needs dismounting, outside opening from this draw-in groove 7412 pushes this elastic component 737, the elastic arm 7371 that makes this elastic component 737 is to the bent distortion of these light guide plate 73 1 lateral bendings, simultaneously spur this light guide plate 73 to breach 7,410 one ends that deviate from this glue frame 74, this elastic component 737 promptly withdraws from this draw-in groove 7412, and the inwall that this elastic arm 7371 is formed this chute 7411 pushes, and keeps its flexural deformation, in this chute 7411, slide, skid off this chute 7411 until this elastic component 737.At last, this light guide plate 73 cooperates by this draw runner 738 and this chute 7411, skids off this glue frame 74.
The assembling process of this module 7 backlight is mainly by these glue frame 74 these elastic components 737 of extruding, this elastic component 737 is occured bending and deformation, and make this light guide plate 73 slip into this glue frame 74, when this elastic component 737 slides into this draw-in groove 7412, recover original shape, be fastened in this glue frame 74.Unloading process also by the flexural deformation of this elastic component 737, withdraws from this draw-in groove 7412, and is subjected to the effect of this glue frame 74, keeps distortion, slides in this chute 7411, withdraws from this glue frame 74.The assembly and disassembly of this module 7 backlight mainly rely on this glue frame 74 these elastic components 737 of extruding, and these elastic component 737 flexural deformations are realized, so this glue frame 74 can not produce torsional deformation, also are difficult for impaired.
Please refer to Fig. 8, is the structural representation of the elastic component of liquid crystal indicator second embodiment of the present invention.The liquid crystal indicator 4 of this liquid crystal indicator 8 and first embodiment is basic identical, its key distinction is: this liquid crystal indicator 8 comprises a light guide plate 83, the elastic component 837 of this light guide plate 83 is asymmetrical U-shaped structures, and it comprises a root 8370, an elastic arm 8371 and a projection 8372.This root 8370 links to each other with this light guide plate 83, and this elastic arm 8371 is approximate parallel with this light guide plate 83, and this projection 8372 extends to these light guide plate 83 1 sides from these elastic arm 8371 other ends, and with this light guide plate 83 spacing is arranged.
Please refer to Fig. 9, is the structural representation of the elastic component of liquid crystal indicator the 3rd embodiment of the present invention.The liquid crystal indicator 4 of this liquid crystal indicator 9 and first embodiment is basic identical, its difference is: this liquid crystal indicator 9 comprises a light guide plate 93, the elastic component 937 included elastic arms 9371 of this light guide plate 93 are regular isosceles trapezoidal structures, and the trapezoidal bottom surface of these isosceles is perpendicular to the side of this light guide plate 93.
The invention is not restricted to above-mentioned embodiment, can have a plurality of elastic components on this light guide plate, the shape of this elastic component can change to some extent according to actual needs, as this elastic arm is that regular shapes such as triangle, wedge shape or other are irregularly shaped, need only reach the purpose that this light guide plate and this framework be fixed and get final product.
Claims (8)
1. module backlight, it comprises that a light guide plate and accommodates the framework of this light guide plate, it is characterized in that: this light guide plate comprises along the outward extending elastic component of its side, this framework comprises the draw-in groove of corresponding this elastic component of engaging, this draw-in groove is through this framework, this light guide plate further comprises an incidence surface, adjacent with this incidence surface two relative side and two strip draw runners, two draw runners vertically stretch out along these two sides respectively, two elastic components stretch out along the side of this two draw runner respectively, this framework also comprises an opening and two chutes, and this opening is away from this incidence surface, can be for this light guide plate this framework of coming in and going out, this chute is respectively to should draw runner, and communicates with this opening.
2. module backlight as claimed in claim 1 is characterized in that: the draw runner of two strips stretches out respectively along this two relative side respectively, and its thickness is less than the thickness of this light guide plate.
3. module backlight as claimed in claim 2 is characterized in that: this elastic component is stretched away from this incidence surface one epitaxial lateral overgrowth from this draw runner.
4. module backlight as claimed in claim 3 is characterized in that: this draw runner comprises from the outward extending root of this draw runner and one and the integrated elastic arm of this root, and this elastic arm extends along the direction that deviates from this incidence surface.
5. module backlight as claimed in claim 4 is characterized in that: this root and this elastic arm form a bending structure.
6. module backlight as claimed in claim 4 is characterized in that: this elastic arm is the wedge structure of tool one chamfering or the bottom surface isosceles trapezoidal structure perpendicular to this side.
7. module backlight as claimed in claim 4 is characterized in that: this elastic component also comprises a projection that links to each other with this elastic arm, and this root, elastic arm and this projection form an asymmetric U-shaped structure.
8. liquid crystal indicator, it comprises a module backlight and a display panels, adjacent this liquid crystal panel of this module backlight, this module backlight comprises that a light guide plate and accommodates the framework of this light guide plate, it is characterized in that: this light guide plate comprises along the outward extending elastic component of its side, this framework comprises the draw-in groove of corresponding this elastic component of engaging, this draw-in groove is through this framework, this light guide plate further comprises an incidence surface, adjacent with this incidence surface two relative side and two strip draw runners, two draw runners vertically stretch out along these two sides respectively, two elastic components stretch out along the side of this two draw runner respectively, this framework also comprises an opening and two chutes, and this opening is away from this incidence surface, can be for this light guide plate this framework of coming in and going out, this chute is respectively to should draw runner, and communicates with this opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100634498A CN100529886C (en) | 2006-11-03 | 2006-11-03 | Backlight module unit and LCD device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100634498A CN100529886C (en) | 2006-11-03 | 2006-11-03 | Backlight module unit and LCD device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101174057A CN101174057A (en) | 2008-05-07 |
| CN100529886C true CN100529886C (en) | 2009-08-19 |
Family
ID=39422654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100634498A Expired - Fee Related CN100529886C (en) | 2006-11-03 | 2006-11-03 | Backlight module unit and LCD device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100529886C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620184B (en) * | 2012-02-10 | 2014-01-08 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| TWI494659B (en) * | 2012-11-16 | 2015-08-01 | Au Optronics Corp | Back light module and display device using the same |
| CN107424812A (en) * | 2017-09-11 | 2017-12-01 | 重庆市高新技术产业开发区兆光机车配件厂 | A kind of ignition coil of easy disassembly |
-
2006
- 2006-11-03 CN CNB2006100634498A patent/CN100529886C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101174057A (en) | 2008-05-07 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20090819 Termination date: 20191103 |