CN101226307B - Backlight module and fixing structure thereof - Google Patents
Backlight module and fixing structure thereof Download PDFInfo
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- CN101226307B CN101226307B CN2008100743155A CN200810074315A CN101226307B CN 101226307 B CN101226307 B CN 101226307B CN 2008100743155 A CN2008100743155 A CN 2008100743155A CN 200810074315 A CN200810074315 A CN 200810074315A CN 101226307 B CN101226307 B CN 101226307B
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- light guide
- backlight module
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Abstract
The invention discloses a backlight module and a relative fixing structure, wherein the fixing structure is used to fix a light guide plate of the backlight module, the fixing structure is provided with a frame to contain the light guide plate, a positioning structure is connected with the frame to mesh the groove on the side face of the light guide plate to fix the light guide plate, the bottom baffle of the positioning structure is contacted with the bottom of the groove, two sides of the bottom baffle are respectively connected with one side baffle couple respectively bent and contacted with two side faces of the groove.
Description
Technical field
The present invention relates to the backlight liquid crystal display module, and particularly relate to the fixedly optical sheet fixing structure of backlight module.
Background technology
Backlight module is one of key part and component of display panels.Because liquid crystal itself can't be luminous, therefore need to supply light source by backlight module, be used to make liquid crystal panel that normal and the well-balanced image of brightness can be provided.A plurality of optical sheets are arranged in backlight module, for example light guide plate, diffusion sheet and prismatic lens, the light that is used for light source is sent is distributed on the liquid crystal panel equably, and then improves the brightness of liquid crystal panel.
The assembling manufacture craft of backlight module is with framework, backlight and each optical sheet, similarly is the process that light guide plate, diffuser plate etc. are made up.Particularly, the assembling manufacture craft is that backlight is fixed in frame facet, and optical sheet is stacked and placed on the framework one by one, is fixed again.Because the method for conventional fixed optical sheet can't be completely fixed optical sheet only for utilizing framework that optical sheet is fastened or is stuck in wherein.In addition, framework is part contact optical sheet only, the optical sheet of can't fitting fully.Therefore when backlight module is impacted, optical sheet and framework clash into mutually, cause the optical sheet warpage, and then cause the bad phenomenon of generation bright line on backlight module light leak or the display panels etc., even cause optical sheet to break.
Based on above-mentioned, so need a kind of fixed sturcture of backlight module, can improve the contact area with optical sheet, break because of bump makes optical sheet to reduce, and can provide optical sheet preferable stability maintenance.
Summary of the invention
A purpose of the present invention is to provide a kind of fixed sturcture of backlight module, in order to the optical sheet in the fixing backlight module, similarly is light guide plate.Fixed sturcture mainly has a framework in order to ccontaining light guide plate, and wherein the side of light guide plate has a groove.One location structure connecting frame in order to the groove on the interlock light guide plate, is used for fixing the position of light guide plate.
End catch in the location structure fits in the bottom surface of groove, and the both sides of end catch connect a pair of side-lens respectively, and side-lens all bends the two side faces that fits in groove, and the side-lens bending place also fits in groove floor and engage sides place.Because the contact area of light guide plate and location structure increases, and can disperse to clash into power, avoids light guide plate to break because of pressure is excessive.
Another object of the present invention is to provide a kind of backlight module, it can improve the contact area of fixed sturcture and light guide plate, makes light conducting plate cracking with minimizing because of bump.One light source, a light guide plate, a framework and a location structure are arranged in the backlight module.The light of light guide plate guiding light source, and have the side that a groove is positioned at light guide plate.Wherein, light guide plate and light source are placed in the framework.Location structure connecting frame, and the groove on the interlock light guide plate make light guide plate be fixed in the framework.
One catch is arranged in location structure, and catch fits in the bottom surface of groove and two connection bottom surfaces and the side respect to one another that bending fits in groove.Wherein, the knuckle of catch bending is the circular arc lead angle, can fit in the angle of cut of groove side and bottom surface.Hence one can see that, and the contact area of catch and groove is the effective position of lightguide plate fixing greatly not only, disperse the bump power, and the circular arc lead angle can be avoided causing breaking of angle of cut place because of bump.
Description of drawings
For above-mentioned and other purposes of the present invention, feature, advantage and embodiment can be become apparent, being described in detail as follows of appended accompanying drawing:
Figure 1 shows that exploded view according to a kind of backlight module of one embodiment of the invention;
Figure 2 shows that aerial view according to the backlight module of Fig. 1.
The main element symbol description
100: backlight module 110: fixed sturcture
120: light source 130: light guide plate
140: groove 142: bottom surface
144: side 146: side
148: the angle of cut 149: the angle of cut
150: framework 160: location structure
162: tongue piece 170: catch
172: end catch 174: side-lens
176: side-lens 178: knuckle
179: knuckle 180: Gu hornwork
182: draw-in groove 184: draw-in groove
Embodiment
Please refer to Fig. 1 and Fig. 2, it illustrates exploded view and aerial view according to the backlight module 100 of one embodiment of the invention respectively.Backlight module 100 is to be used for supplying display panels uniform light, wherein has light source 120, light guide plate 130 and fixed sturcture 110.The light that act as guiding light source 120 of light guide plate 130 evenly is transmitted on the display panels light.Fluted 140 on the side of light guide plate 130, cooperate fixed sturcture 110 with lightguide plate fixing 130.
Particularly, location structure 160 comprises tongue piece 162 and catch 170.Tongue piece 162 1 end connecting frames 150, the other end are then given prominence to and are extend in the groove 140.Catch 170 connects tongue piece 162, is used for being snapped among the groove 140.Specifically, catch 170 is subdivided into end catch 172, side-lens 174 and 176 3 parts of side-lens.The bottom surface 142 of end catch 172 applying grooves 140, side-lens 174 and side-lens 176 are connected the both sides of end catch 172 respectively, bend and fit in the side 144 and the side 146 of groove 140.
Since 140 3 different planes of catch 170 contact grooves, the bump power that can bear 100 3 different directions of backlight module.And catch 170 is big with the contact area of groove 140, and lifting surface area can disperse the pressure that clashes into and then protection light guide plate 130 greatly.
Generally speaking, groove 140 interior angles, meaning is the angle of cut 148 of side 144 and bottom surface 142 and the angle of cut 149 of side 146 and bottom surface 142, is not sharp keen right angle usually, but has circular-arc lead angle or obtuse angle.Therefore, the knuckle 179 of the knuckle 178 of end catch 172 and side-lens 174 and end catch 172 and side-lens 176 must cooperate the angle of cut 148 and the angle of cut 149 respectively.Particularly, knuckle 178 and knuckle 179 can be the obtuse angle, make that knuckle 178 and the angle of cut 148 surface of contact are mild.In the present embodiment, knuckle 178 and knuckle 179 are the circular arc lead angle, and can fit on the surface of the angle of cut 148 and the angle of cut 149.
Fixed sturcture 110 in the present embodiment also includes solid hornwork 180, is used for fixed in shape with knuckle 178 and knuckle 179, avoids its angle to be out of shape because of bump, and even produces sharp keen angle and hurt light guide plate 130.Particularly, the length of side-lens 174 and side-lens 176 is all greater than the length of side 144 and side 146.Therefore, after assembling, side-lens 174 and side-lens 176 all protrude a part outside groove 140.Gu 184 of draw-in groove 182 in the hornwork 180 and draw-in grooves be the part of the protrusion of nip side catch 174 and side-lens 176 respectively, the position of fixation side catch 174 and side-lens 176 thus, and then the fixing shape of knuckle 178 and knuckle 179.
By the foregoing description as can be known, catch 170 fits in the inside surface of groove 140, but the position of lightguide plate fixing 130 not only, and can bear and the strength when disperseing to clash into and protect light guide plate 130, and then avoid breaking of light guide plate 130.
Though disclosed the present invention in conjunction with an above preferred embodiment; yet it is not in order to limit the present invention; anyly be familiar with this operator; without departing from the spirit and scope of the present invention; can be used for a variety of modifications and variations, thus protection scope of the present invention should with enclose claim was defined is as the criterion.
Claims (11)
1. the fixed sturcture of a backlight module comprises at least:
Framework, in order to ccontaining light guide plate, wherein the sidepiece of this light guide plate has a groove;
Location structure connects this framework, and to fix the position of this light guide plate, wherein this location structure comprises in order to this groove of interlock:
One end catch fits in the bottom surface of this groove; And
A pair of side-lens connects the both sides of this end catch respectively, and bends the two side faces that fits in this groove, and each this side-lens and this end catch form a knuckle;
Wherein this fixed sturcture also comprises solid hornwork, in order to fix the shape of this knuckle.
2. fixed sturcture as claimed in claim 1, wherein this knuckle is the circular arc lead angle.
3. fixed sturcture as claimed in claim 2, wherein each this side and this bottom surface have an angle of cut, and this circular arc lead angle fits in this angle of cut.
4. fixed sturcture as claimed in claim 1, wherein this knuckle is the obtuse angle.
5. fixed sturcture as claimed in claim 1, wherein the length of each this side-lens is greater than the length of each this side.
6. fixed sturcture as claimed in claim 5 wherein should comprise two draw-in grooves by solid hornwork, and those side-lens of clamping protrude the part of this groove respectively.
7. backlight module comprises at least:
Light guide plate is guided the light of a light source, and has the sidepiece that at least one groove is positioned at this light guide plate;
Framework, ccontaining this light guide plate and this light source;
Location structure connects this framework, and this groove of interlock is to fix this light guide plate in this framework, wherein this location structure comprises a catch, fit in a bottom surface of this groove, and bend a pair of relative side that fits in this groove with a knuckle, wherein those sides connect this bottom surface respectively;
Wherein this backlight module also comprises a solid hornwork, in order to fix the shape of this knuckle.
8. backlight module as claimed in claim 7, wherein this knuckle is a circular arc lead angle.
9. backlight module as claimed in claim 8, wherein each this side and this bottom surface have an angle of cut, and this circular arc lead angle fits in this angle of cut.
10. backlight module as claimed in claim 8, wherein the angle of this knuckle is the obtuse angle.
11. backlight module as claimed in claim 7 wherein should comprise at least one draw-in groove by solid hornwork, with this catch of clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100743155A CN101226307B (en) | 2008-02-15 | 2008-02-15 | Backlight module and fixing structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100743155A CN101226307B (en) | 2008-02-15 | 2008-02-15 | Backlight module and fixing structure thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101226307A CN101226307A (en) | 2008-07-23 |
| CN101226307B true CN101226307B (en) | 2010-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100743155A Active CN101226307B (en) | 2008-02-15 | 2008-02-15 | Backlight module and fixing structure thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN101226307B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140347596A1 (en) * | 2011-12-06 | 2014-11-27 | SHARP KABUSHIKI KAISHA a corporation | Backlight unit and liquid-crystal display device |
| US8958030B2 (en) | 2012-05-10 | 2015-02-17 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight unit having buffer structures and liquid crystal display device using the same |
| CN102654601A (en) * | 2012-05-10 | 2012-09-05 | 深圳市华星光电技术有限公司 | Light guide plate with buffer protection fixed structure and liquid crystal display (LCD) device thereof |
| TWI567457B (en) * | 2014-04-07 | 2017-01-21 | 瑞儀光電股份有限公司 | Optical assembly, backlight module and liquid crystal display |
| CN105116484A (en) | 2015-09-15 | 2015-12-02 | 北京京东方茶谷电子有限公司 | Light guide plate, backlight module and display device |
| CN106054308B (en) * | 2016-07-28 | 2019-02-01 | 滁州佳宏光电有限公司 | A kind of light guide plate and its moulding process with location structure |
-
2008
- 2008-02-15 CN CN2008100743155A patent/CN101226307B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101226307A (en) | 2008-07-23 |
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