CN101876412A - Display device and back light module thereof - Google Patents
Display device and back light module thereof Download PDFInfo
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- CN101876412A CN101876412A CN2009102638016A CN200910263801A CN101876412A CN 101876412 A CN101876412 A CN 101876412A CN 2009102638016 A CN2009102638016 A CN 2009102638016A CN 200910263801 A CN200910263801 A CN 200910263801A CN 101876412 A CN101876412 A CN 101876412A
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- module backlight
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Abstract
The invention provides a display device and a back light module thereof. The back light module comprises an optical diaphragm group, a middle frame, a first locating element and a second locating element, wherein the edge of the optical diaphragm group is provided with a through hole, and the middle frame is provided with a slot; the first locating element is arranged at the position of the slot, and the third surface and the fourth surface of the first locating element, which are oppositely arranged, are respectively provided with a first groove and a second groove; the second locating element is provided with a side wall, a top wall and a bottom wall, wherein the top wall and the bottom wall extend in parallel to the same direction from two ends of the side wall, the opposite surfaces of the top wall and the surface of the bottom wall are respectively provided with a first bump and a second bump; the first bump passes through the through hole to be combined and positioned with the first groove, the second bump and the second groove are combined and positioned so as to utilize the cooperation of the first locating element and the second locating element to fix the optical diaphragm group on the middle frame. The back light module of the invention causes that the optical diaphragm group is convenient to fix in the middle frame, can effectively shorten working hour, can reduce the use ratio of adhesive tape and can effectively lower manufacturing cost.
Description
Technical field
The present invention is about a kind of module backlight, relates in particular to a kind ofly to utilize the module backlight of center fixed optics diaphragm group and have the display unit of this module backlight.
Background technology
Thin Film Transistor-LCD has advantages such as low consumpting power, thin type light weight and low voltage drive, so be the most general present a kind of flat-panel screens, is widely used in taking down notes electronic products such as computer, desktop computer and LCD TV.
Because Thin Film Transistor-LCD can not be luminous voluntarily, so the source light that need provide image to show by the light source of module backlight.See also Figure 1A and 1B, Figure 1A is depicted as the schematic diagram of liquid crystal indicator of the prior art, and Figure 1B is depicted as liquid crystal indicator among Figure 1A along the generalized section of AA ' line.Liquid crystal display is adorned 1 and is comprised display panels 2 and module backlight, and module wherein backlight comprises light source (not shown), optical diaphragm group 4, LGP 5 and glue frame 3.Because optical diaphragm group 4 is understood the influence of Yin Wendu and humidity and contraction or expansion under the situation that temperature and humidity change, when temperature and humidity are returned to original state, optical diaphragm group 4 meetings are because of the residual stress buckling deformation, thereby the display quality and the optics grade of reduction liquid crystal indicator 1.In the prior art, employing optical diaphragm group 4 is arranged on the glue frame 3 and utilizes adhesive tape 6 to be fixed on the glue frame 3.Though can add strong fix optical diaphragm group 4 so to a certain extent and prevent the deformation warpage of optical diaphragm group 4, badly will cause optical diaphragm group 4 displacements if adhesive tape 6 is fixing, thereby produce open defect.In addition, during liquid crystal indicator 1 dismounting, adhesive tape 6 easily clings blooming piece, causes the dismounting difficulty.And fixing by adhesive tape 6, change adhesive tape 6 at the heavy industry process need, cause the waste of material, and then increase the manufacturing cost of liquid crystal indicator.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of display unit and module backlight thereof, be used for improving the bad and blooming piece of present optical diaphragm group constant intensity and produce the problem of deformation because of expanding with heat and contract with cold.
For reaching above-mentioned purpose, the invention provides a kind of module backlight, this module backlight comprises optical diaphragm group, center, first keeper and second keeper.This optical diaphragm group edge has through hole.This center has side wall and the vertically extending base plate of this side wall certainly, this base plate has first surface and the second surface that is oppositely arranged, this optical diaphragm group is positioned on this first surface, and has fluting on this center, and this fluting extends to this base plate from this side wall.This first keeper is arranged at this fluting place, and has the side that the 3rd surface that is oppositely arranged is surperficial with the 4th and be connected the 3rd surface and the 4th surface, the 3rd surface and this first surface copline, and go up should the through hole indent being provided with first groove on the 3rd surface, and the 4th surface is gone up indent and is provided with second groove.Second keeper has sidewall and these sidewall two ends are in the same way and roof that extends in parallel and diapire certainly, and this roof towards the 5th surface of this diapire to should first groove and this through hole be provided with first projection, this diapire towards the 6th surface of this roof to being provided with second projection by second groove.Wherein, this first projection passes this through hole and combines the location with this first groove, and this second projection combines the location with this second groove, thereby utilize first keeper to cooperate with second keeper this optical diaphragm group is fixed on this center.
As optional technical scheme, this optics matrix group comprises body and the outstanding lug of this body edges certainly, and this through hole is positioned on this lug.
As optional technical scheme, be parallel on the direction of this side wall and this base plate on the edge, the length of this lug is smaller or equal to the length of this fluting.
As optional technical scheme, this center comprises that also the side wall from the both sides of this fluting is parallel to the 3rd projection that this base plate direction is extended, and this body edges is against the 3rd projection.
As optional technical scheme, this center and this first keeper are one-body molded.
As optional technical scheme, this side of this first keeper is with respect to the outer wall indent of this side wall, and the distance of this outer wall and this side is more than or equal to the thickness of this sidewall.
As optional technical scheme, the 4th surface is between this first surface and this second surface.
As optional technical scheme, being shaped as of this through hole is square, polygon, circle or semicircle.
As optional technical scheme, this second keeper adopts steel matter to make.
The present invention also provides a kind of display unit, and this display unit comprises display floater and aforesaid module backlight.Display floater is in order to display image, and module backlight provides light source for this display floater.
Compared to prior art, liquid crystal indicator of the present invention and module backlight are fixed in optical diaphragm group on the center by first keeper on second keeper and the center cooperates, can effectively improve the bad problem of blooming piece constant intensity, and can prevent deformation or warpage that expanding with heat and contract with cold of blooming piece brought, but also can reduce the attaching adhesive tape, reduce production costs, and and then improve the yield of module backlight assembling and heavy industry.
Can be about the advantages and spirit of the present invention by following detailed Description Of The Invention and appended graphic being further understood.
Description of drawings
Figure 1A is depicted as the schematic diagram of liquid crystal indicator of the prior art;
Figure 1B is depicted as liquid crystal indicator among Figure 1A along the generalized section of AA ' line;
Figure 2 shows that partial exploded view according to first embodiment of module backlight of the present invention;
Figure 3 shows that structural representation according to second fixture of the present invention;
Fig. 4 A is depicted as the schematic diagram after the module backlight combination among Fig. 2;
Fig. 4 B is depicted as module backlight among Fig. 4 A along the generalized section of BB ' line;
Figure 5 shows that partial exploded view according to second embodiment of module backlight of the present invention;
Figure 6 shows that the schematic diagram after the module backlight combination among Fig. 5.
The specific embodiment
Display unit provided by the invention for example is a liquid crystal indicator, comprise display panels and module backlight, display panels is arranged at the top of module backlight, wherein, the display panels (not shown) for example is to have thin-film transistor array base-plate, colored filter substrate and the liquid crystal layer between two substrates.Display panels is in order to display image, and module backlight provides light source for display panels.
See also Fig. 2, Fig. 3, Fig. 4 A and Fig. 4 B, Figure 2 shows that partial exploded view according to first embodiment of module backlight of the present invention, Figure 3 shows that structural representation according to second fixture of the present invention, Fig. 4 A is depicted as the schematic diagram after the module backlight combination among Fig. 2, and Fig. 4 B is depicted as module backlight among Fig. 4 A along the generalized section of BB ' line.Module 10 backlight comprises optical diaphragm group 11, center 12, first keeper 13, second keeper 14 and light source module (not shown).Blooming piece in the optical diaphragm group 11 can adopt or the combination of above-mentioned blooming piece in diffusion sheet, prismatic lens or the brightening piece etc., and diffusion sheet is used to make light more even, and prismatic lens is used to make light to concentrate on vertical direction.Kind and quantity for blooming piece can adjust according to different user demands, and the present invention does not limit it.Wherein optical diaphragm group 11 edges have through hole 15, and the shape of through hole 15 can be square, polygon, circle or semicircle, but not as limit.In the present embodiment, center 12 is the glue frame, adopts plastic cement material to make.Center 12 has side wall 16 and from side wall 16 vertically extending base plates 17, base plate 17 has first surface 18 and the second surface 19 that is oppositely arranged, and optical diaphragm group 11 is positioned on the first surface 18.And having fluting 20 on the center 12, fluting 20 extends towards base plate 17 from side wall 16.First keeper 13 is arranged at fluting 20 places, and has the 3rd surface that is oppositely arranged with the 4th surface 22 and be connected the 3rd surface and the side 23 on the 4th surface 22, wherein the 3rd the surface with first surface 18 coplines, and corresponding through hole 15 indents are provided with that indent is provided with second groove 25 on first groove, 24, the four surfaces 22 on the 3rd surface 18.Wherein, the center 12 and first keeper 13 are one-body molded.
In addition, please continue B referring to Fig. 4, the side 23 of first keeper 13 is with respect to outer wall 35 indents of side wall 16, and the distance D of outer wall 35 and side 23 is more than or equal to the thickness of sidewall 26, after guaranteeing first fixture 13 like this and second fixture 14 combining, the sidewall 26 of second fixture 14 can not protrude in the outer wall 35 of side wall 16, and is attractive in appearance in appearance on the one hand, can prevent from the other hand to be touched by other members after second fixture 14 from giving prominence to.
In addition, in the present embodiment, the 4th surface 22 is between first surface 18 and second surface 19, and preferably, the distance L between second surface 19 and the 4th surface 22 is more than or equal to the thickness of the diapire 28 of second keeper 14, still not as limit.
See also Fig. 5 and Fig. 6, Figure 5 shows that partial exploded view, Figure 6 shows that the schematic diagram after the module backlight combination among Fig. 5 according to second embodiment of module backlight of the present invention.Module backlight 10 in the present embodiment ' be with module backlight 10 differences in first embodiment, optical diaphragm group 11 ' comprise body 41 and from body 41 edges outstanding lug 42, through hole 15 ' be positioned on the lug 42.Wherein, be parallel on the direction of side wall 16 and base plate 17 on the edge, the length of lug 42 smaller or equal to fluting 20 ' length so that lug 42 can be placed in fluting 20 ' locate and with first fixture 13 ' on first groove 24 ' and second fixture 14 ' on first projection combine.And, center 12 ' also comprise from slot 20 ' the 3rd projection 33 that extends of side wall 16 ' the be parallel to base plate 17 ' direction of both sides ', and body 41 edges against the 3rd projection 33 '.Thereby, first projection pass through hole 15 ' with first groove 24 ' combine the location, second projection combines the location with second groove, and and then utilize first keeper 13 ' with second keeper 14 ' cooperate with optical diaphragm group 11 ' be fixed in center 12 ' on.
In addition, need to prove that at this present invention only does explanation with the partial illustration of module backlight in graphic, in fact, only need satisfy projection and the corresponding cooperation of the through hole on the optical diaphragm group on the groove on first keeper on the center, second keeper, its quantity does not limit, but decides according to concrete actual conditions.
In sum, liquid crystal indicator of the present invention and module backlight are fixed in optical diaphragm group on the glue frame by first keeper on second keeper and the glue frame cooperates, can effectively improve the bad problem of blooming piece constant intensity, and can prevent the deformation that expanding with heat and contract with cold of blooming piece brought, but also can reduce the attaching adhesive tape, reduce production costs, and and then raising is assembled and the yield of heavy industry.
By the detailed description of the above specific embodiment, be to wish to know more to describe feature of the present invention and spirit, and be not to come claim scope of the present invention is limited with the above-mentioned disclosed specific embodiment.On the contrary, its objective is that hope can contain in being arranged in of various changes and the tool equality claim scope of the present invention.Therefore, claim scope of the present invention should be done the broadest explanation according to above-mentioned explanation, contains the arrangement of all possible change and tool equality to cause it.
Claims (10)
1. a module backlight is characterized in that this module backlight comprises
Optical diaphragm group, this optical diaphragm group edge has through hole;
Center, this center have side wall and the vertically extending base plate of this side wall certainly, and this base plate has first surface and the second surface that is oppositely arranged, and this optical diaphragm group is positioned on this first surface, and has fluting on this center;
First keeper, this first keeper is arranged at this fluting place, and has the side that the 3rd surface that is oppositely arranged is surperficial with the 4th and be connected the 3rd surface and the 4th surface, the 3rd surface and this first surface copline, and go up should the through hole indent being provided with first groove on the 3rd surface, and the 4th surface is gone up indent and is provided with second groove; And
Second keeper, has sidewall and these sidewall two ends are in the same way and roof that extends in parallel and diapire certainly, and this roof towards the 5th surface of this diapire to should first groove and this through hole be provided with first projection, this diapire towards the 6th surface of this roof to being provided with second projection by second groove;
Wherein, this first projection passes this through hole and combines the location with this first groove, and this second projection combines the location with this second groove.
2. module backlight as claimed in claim 1 is characterized in that this optics matrix group comprises body and the outstanding lug of this body edges certainly, and this through hole is positioned on this lug.
3. module backlight as claimed in claim 2 is characterized in that: be parallel on the direction of this side wall and this base plate on the edge, the length of this lug is smaller or equal to the length of this fluting.
4. module backlight as claimed in claim 2 is characterized in that this center comprises that also this side wall from these fluting both sides is parallel to the 3rd projection that this base plate direction is extended, and this body edges is against the 3rd projection.
5. module backlight as claimed in claim 1 is characterized in that this center and this first keeper are one-body molded.
6. module backlight as claimed in claim 1 it is characterized in that the outer wall indent of this side of this first keeper with respect to this side wall, and the distance of this outer wall and this side is more than or equal to the thickness of this sidewall.
7. module backlight as claimed in claim 1 is characterized in that the 4th surface is between this first surface and this second surface.
8. module backlight as claimed in claim 1 is characterized in that being shaped as of this through hole is square, polygon, circle or semicircle.
9. module backlight as claimed in claim 1 is characterized in that this second keeper adopts steel matter to make.
10. a display unit is characterized in that this display unit comprises
Display floater is in order to display image; And
As any described module backlight in the claim 1-9 item, this module backlight provides light source for this display floater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102638016A CN101876412A (en) | 2009-12-16 | 2009-12-16 | Display device and back light module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102638016A CN101876412A (en) | 2009-12-16 | 2009-12-16 | Display device and back light module thereof |
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| Publication Number | Publication Date |
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| CN101876412A true CN101876412A (en) | 2010-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102638016A Pending CN101876412A (en) | 2009-12-16 | 2009-12-16 | Display device and back light module thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986015A (en) * | 2010-11-17 | 2011-03-16 | 友达光电股份有限公司 | Backlight module |
| CN102494308A (en) * | 2011-12-02 | 2012-06-13 | 深圳市华星光电技术有限公司 | Location hook for optical membrane of backlight module |
| CN102720993A (en) * | 2012-06-15 | 2012-10-10 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN102767761A (en) * | 2012-07-13 | 2012-11-07 | 深圳市华星光电技术有限公司 | Backlight module |
| CN102798035A (en) * | 2012-07-17 | 2012-11-28 | 深圳市华星光电技术有限公司 | Liquid crystal display device and backlight module thereof |
| CN103090255A (en) * | 2011-10-27 | 2013-05-08 | 群康科技(深圳)有限公司 | Display device and backlight module thereof |
| WO2013071646A1 (en) * | 2011-11-18 | 2013-05-23 | 深圳市华星光电技术有限公司 | Optical film and backlight module |
| WO2013078742A1 (en) * | 2011-12-02 | 2013-06-06 | 深圳市华星光电技术有限公司 | Liquid crystal display module having connecting assembly |
| US8659883B2 (en) | 2011-12-02 | 2014-02-25 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Liquid crystal display device with connector |
| CN104197242A (en) * | 2014-08-22 | 2014-12-10 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN105372863A (en) * | 2015-12-03 | 2016-03-02 | 微鲸科技有限公司 | Ultrathin LCD device and all-in-one machine having same |
| CN109003539A (en) * | 2018-08-07 | 2018-12-14 | 青岛海信电器股份有限公司 | A kind of display device |
| CN110596955A (en) * | 2019-09-25 | 2019-12-20 | 北京京东方专用显示科技有限公司 | Liquid crystal display device, backlight module and preparation method of backlight module |
| CN111273473A (en) * | 2019-11-14 | 2020-06-12 | 苏州品祺电子科技有限公司 | Composite frame, light source module and assembling method of light source module |
| CN113589585A (en) * | 2020-04-30 | 2021-11-02 | 深圳市万普拉斯科技有限公司 | Backlight module and liquid crystal display |
-
2009
- 2009-12-16 CN CN2009102638016A patent/CN101876412A/en active Pending
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986015B (en) * | 2010-11-17 | 2011-11-30 | 友达光电股份有限公司 | Backlight module |
| CN101986015A (en) * | 2010-11-17 | 2011-03-16 | 友达光电股份有限公司 | Backlight module |
| CN103090255A (en) * | 2011-10-27 | 2013-05-08 | 群康科技(深圳)有限公司 | Display device and backlight module thereof |
| WO2013071646A1 (en) * | 2011-11-18 | 2013-05-23 | 深圳市华星光电技术有限公司 | Optical film and backlight module |
| WO2013078742A1 (en) * | 2011-12-02 | 2013-06-06 | 深圳市华星光电技术有限公司 | Liquid crystal display module having connecting assembly |
| CN102494308A (en) * | 2011-12-02 | 2012-06-13 | 深圳市华星光电技术有限公司 | Location hook for optical membrane of backlight module |
| CN102494308B (en) * | 2011-12-02 | 2014-04-30 | 深圳市华星光电技术有限公司 | Location hook for optical membrane of backlight module |
| US8659883B2 (en) | 2011-12-02 | 2014-02-25 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Liquid crystal display device with connector |
| CN102720993B (en) * | 2012-06-15 | 2014-07-16 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN102720993A (en) * | 2012-06-15 | 2012-10-10 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| WO2013185374A1 (en) * | 2012-06-15 | 2013-12-19 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN102767761B (en) * | 2012-07-13 | 2016-03-30 | 深圳市华星光电技术有限公司 | Backlight module |
| CN102767761A (en) * | 2012-07-13 | 2012-11-07 | 深圳市华星光电技术有限公司 | Backlight module |
| US8960981B2 (en) | 2012-07-13 | 2015-02-24 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module |
| CN102798035A (en) * | 2012-07-17 | 2012-11-28 | 深圳市华星光电技术有限公司 | Liquid crystal display device and backlight module thereof |
| CN102798035B (en) * | 2012-07-17 | 2015-11-25 | 深圳市华星光电技术有限公司 | Liquid crystal indicator and backlight module thereof |
| CN104197242A (en) * | 2014-08-22 | 2014-12-10 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN104197242B (en) * | 2014-08-22 | 2017-02-08 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN105372863A (en) * | 2015-12-03 | 2016-03-02 | 微鲸科技有限公司 | Ultrathin LCD device and all-in-one machine having same |
| CN109003539A (en) * | 2018-08-07 | 2018-12-14 | 青岛海信电器股份有限公司 | A kind of display device |
| CN110596955A (en) * | 2019-09-25 | 2019-12-20 | 北京京东方专用显示科技有限公司 | Liquid crystal display device, backlight module and preparation method of backlight module |
| CN110596955B (en) * | 2019-09-25 | 2022-06-07 | 北京睿智航显示科技有限公司 | Liquid crystal display device, backlight module and preparation method of backlight module |
| CN111273473A (en) * | 2019-11-14 | 2020-06-12 | 苏州品祺电子科技有限公司 | Composite frame, light source module and assembling method of light source module |
| CN113589585A (en) * | 2020-04-30 | 2021-11-02 | 深圳市万普拉斯科技有限公司 | Backlight module and liquid crystal display |
| CN113589585B (en) * | 2020-04-30 | 2022-09-13 | 深圳市万普拉斯科技有限公司 | Backlight module and liquid crystal display |
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Open date: 20101103 |