CN1558278A - Doublesided liquid crystal display and luminous module thereof - Google Patents
Doublesided liquid crystal display and luminous module thereof Download PDFInfo
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- CN1558278A CN1558278A CNA2004100019521A CN200410001952A CN1558278A CN 1558278 A CN1558278 A CN 1558278A CN A2004100019521 A CNA2004100019521 A CN A2004100019521A CN 200410001952 A CN200410001952 A CN 200410001952A CN 1558278 A CN1558278 A CN 1558278A
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- support portion
- diffuser plate
- support
- fluorescent tube
- liquid crystal
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Abstract
The present invention is double-sided LCD and its light emitting module. The light emitting module includes the first diffusion plate, the second diffusion plate, one support assembly and one light source. The light source is set between the first diffusion plate and the second diffusion plate, and the support assembly set between the first diffusion plate and the second diffusion plate supports the second diffusion plate, the support assembly and the light source.
Description
Technical field
The present invention relates to a kind of light emitting module, particularly relate to a kind of light emitting module applicable to double side liquid crystal display, the distortion that can positively prevent diffuser plate and fluorescent tube and minimizing component count.
Background technology
As shown in Figure 1, backlight module 10 comprises a reflecting plate 11, a diffuser plate 12, a plurality of fluorescent tube 13 and a plurality of support column 14.Reflecting plate 11 is positioned at the bottom of backlight module 10, will reflex to diffuser plate 12 from the light of fluorescent tube 13 by reflecting plate 11.Diffuser plate 12 is arranged on the reflecting plate 11 in the mode that coats fluorescent tube 13, and is required backlight to form thus, and fluorescent tube 13 is in order to the light source as backlight module 10.Support column 14 is provided with between reflecting plate 11 and the diffuser plate 12, with supporting diffuser plate 12, can avoid diffuser plate 12 producing improperly buckling deformation simultaneously by support column 14.
Yet when the size of LCD was big more, the size of the required fluorescent tube in the above-mentioned backlight module 10 also can become greatly relatively, and this kind large scale fluorescent tube also has overheated and produces the possibility of distortion, and then influences the optical characteristics of whole LCD.
In order to improve above-mentioned situation, disclosed a kind of backlight module 20 (as shown in Figure 2) in Japanese patent laid-open 5-119703 number, its mode has installed a support column 24 additional below fluorescent tube 23, by the distortion of support column 24 to avoid fluorescent tube 23 to be produced, but its shortcoming is: when the size of LCD is big more, diffuser plate size in the backlight module also can become greatly relatively, and the large-sized diffuser plate of this kind also has the possibility of distortion, and then influences the optical characteristics of whole LCD.
In addition, the Jap.P. spy opens and has disclosed another kind of backlight module 30 in 2001-210126 number, it as shown in Figure 3, below fluorescent tube 33, install retainer 34 additional, avoiding fluorescent tube 33 distortion, and on retainer 34, form a projection 341, itself and diffuser plate 32 butts, keeping diffuser plate 32, and then suppress the generation of the even property (mura) of luminance nonuniformity at both allocations.
Yet, above-mentioned backlight module has following shortcoming: two individualities that fluorescent tube 33 and retainer 34 separate, retainer 34 is arranged between two fluorescent tubes 33, when the size of LCD is big more, diffuser plate size in the backlight module also can become greatly relatively, and the large-sized diffuser plate of this kind also has the possibility of distortion, and the quantity of retainer 34 must increase, and then the increase component count, cause assembling to be difficult for.
In addition, all be to use the themselves one-sided displays of backlight module at present on the market, double side liquid crystal display is comparatively rare, and therefore the bracing or strutting arrangement applicable to the light emitting module in the double side liquid crystal display is required design at present.
Summary of the invention
The object of the present invention is to provide a kind of double side liquid crystal display and light emitting module thereof, can positively prevent fluorescent tube and diffuser plate distortion in it.
Another object of the present invention is to provide a kind of light emitting module, it can make and be applicable to double side liquid crystal display, and fixed lamp tube and support two diffuser plates simultaneously.
Another object of the present invention is to provide a kind of light emitting module, can reduce object required when assembling.
According to the present invention, a kind of backlight module is provided, it comprises one first diffuser plate, one second diffuser plate, a support assembly and a light source.Light source is arranged between first diffuser plate, this second diffuser plate.Support assembly is arranged between first diffuser plate and second diffuser plate, in order to support first diffuser plate, second diffuser plate and light source.
In a preferred embodiment, support assembly comprises one first support portion and one second support portion, the first support portion supporting light sources, and diffuser plate is supported in second support portion.
Again, first support portion is a strip component, and second support portion is a cylindrical component, and is substantially orthogonal between first support portion and second support portion.
In another preferred embodiment, support assembly by first support portion and second support portion the one-body molded member that jointly forms.
Again, light source comprises a plurality of fluorescent tubes, and fluorescent tube mode parallel to each other is arranged on first support portion, and second support portion is arranged between the wantonly two adjacent fluorescent tubes in the fluorescent tube.
Again, first support portion is made up of two members, and each member comprises a plurality of grooves, and fluorescent tube is arranged on this each member via this each groove.
Again, first support portion has a plurality of holes, and each fluorescent tube passes each hole respectively.
The present invention also provides a kind of double side liquid crystal display, and it comprises one first framework, one second framework, one first diffuser plate, one second diffuser plate, a support assembly and a light source.First diffuser plate, second diffuser plate are arranged at first framework, second framework respectively.Light source is arranged between first framework and second framework, and respectively with first, second diffuser plate both set a distance of being separated by.Support assembly is arranged between first diffuser plate and second diffuser plate, in order to support first diffuser plate, second diffuser plate and light source.
For above and other objects of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and cooperate appended diagram, be described in detail below.
Description of drawings
Fig. 1 is the synoptic diagram of existing backlight module;
Fig. 2 is the synoptic diagram of another existing backlight module;
Fig. 3 is the synoptic diagram of another existing backlight module;
Fig. 4 is the stereographic map of light emitting module of the present invention;
Fig. 5 is the synoptic diagram of the support assembly among Fig. 4;
Fig. 6 A is the synoptic diagram of the variation example of support assembly;
Fig. 6 B is the local enlarged diagram in the zone (Z) among Fig. 6 A;
Fig. 6 C is the partial exploded view of Fig. 6 B; And
Fig. 7 is the synoptic diagram that one of support assembly of the present invention changes example.
Embodiment
Can be applicable at support assembly 130 of the present invention among two kinds of light emitting modules of marginal mode (edge light type) and straight-down negative (direct light type).For clarity of illustration, only relevant explanation is proposed at embodiments of the invention with regard to direct type backlight module.
Fig. 4 is first framework 110, second framework 111 and a light emitting module 100 of local repressentation double side liquid crystal display only, and remaining component in this description will be omitted.
As shown in Figure 4, one first diffuser plate 120, one second diffuser plate 121 are connected with first framework 110, second framework 111 respectively.Between first framework 110, second framework 111, be provided with a support assembly 130 and a light source 140.Support assembly 130 is arranged between first diffuser plate 120 and second diffuser plate 121.Because the structural strength deficiency of diffuser plate 120,121 own, if diffuser plate 120,121 only is connected with first framework 110, second framework 111, be easy to generate warpage, therefore, support first diffuser plate 120 and second diffuser plate 121 simultaneously by support assembly 130, can strengthen the overall construction intensity of light emitting module 100.Light source 140 is arranged between first diffuser plate 120, second diffuser plate 121, and this light source 140 is same supports by support assemblies 130, is connected in first diffuser plate 120, second diffuser plate 121 simultaneously.
The structure of support assembly 130 can be one-body molded, also can be subassembly.Below just with regard to the structure of the 5th figure with detailed description support assembly 130.
Fig. 5 is the synoptic diagram of the support assembly 130 among Fig. 4, by finding out obviously among the figure that support assembly 130 comprises first support portion 131 and second support portion 132.First support portion 131 is strip structure, and has a plurality of holes 150 in first support portion 131, has a both set a distance between each hole 150, and each fluorescent tube 140a is arranged in each hole.More can be according to the size of diffuser plate and fluorescent tube length and quantity and are one-body molded in first support portion 131 and second support portion 132.Therefore, can reduce built-up time and reduce unnecessary object cost.
Fig. 6 A represents the synoptic diagram of another variation example of support assembly 130.Fig. 6 B, Fig. 6 C represent according to the synoptic diagram of the variation example of support assembly 130 among Fig. 6 A and local enlarged diagram thereof.Change in the example at this, the structure of support assembly 130 also can be made up of different component.
Can find out that by Fig. 6 B, Fig. 6 C be with 131 differences in first support portion among Fig. 5: first support portion 131 ' is made up of two member 131a, 131b with paired a plurality of semi-circular recesses 142a, 142b.Thus, each fluorescent tube 140a just can be arranged between two member 131a, the 131b via the location of two groove semi-circular recesses 142a, 142b.Other identical member all adopts the symbol that is same as Fig. 5, in this just no longer narration.
It should be noted that, the hole 150 of first support portion 131 or the distance between groove 142a, the 142a are identical with distance between each fluorescent tube 140a, therefore fluorescent tube 140a passes the hole 150 of first support portion 131, in addition, as mentioned above, fluorescent tube 140a set-up mode of the present invention is not limited to pass the hole 150 of first support portion 131, because first support portion 131 also can be made up of two member 131a, 131b with a plurality of semi-circular recesses 142 up and down, each fluorescent tube 140a is arranged on about in the of two between the corresponding groove 142 of first support portion 131.So the fluorescent tube assembling mode is earlier fluorescent tube 140a to be placed on one to have in the member 131b of semi-circular recesses 142b, the member 131a that again another is had semi-circular recesses 142a covers on fluorescent tube 140a, and then fluorescent tube 140a fixed, therefore, support each fluorescent tube 140a in this way, can prevent that the fluorescent tube spacing from differing, can give fluorescent tube 130 more firm support thus.
In addition, second support portion 132 of support assembly 130 is a column structure, on second support portion 132, have two support end 132a, by two support end 132a to support first diffuser plate 120 and second diffuser plate 121 as shown in Figure 4 respectively, except the warpage that can prevent diffuser plate, more can determine the location up and down between fluorescent tube and the diffuser plate by the length of second support portion 132.
In addition, and for example shown in Fig. 5, Fig. 6 A, second support portion 132 but is not limited to this between two fluorescent tube 140a of the central part of light source 140, the length of its visual fluorescent tube and material or diffuser plate size and change it position is set.
Though in Fig. 5, Fig. 6 A, only demonstrate single first support portion 131 and single second support portion 132, be not that the quantity of first support portion 131 and second support portion 132 can change according to the size of double side liquid crystal display in order to restriction the present invention.In other words, the set-up mode of first support portion 131 and second support portion 132 is not limited to support first diffuser plate 120 and second diffuser plate, 121, the first support portions 131 and second support portion 132 with single first support portion 131 and second support portion 132 and also can changes according to the size of fluorescent tube 140, diffuser plate 120.With Fig. 7 is example, and Fig. 7 is the synoptic diagram that one of support assembly of the present invention changes example, can utilize three first support portions 131 and six second support portions 132 to come supporting light sources 140.
In addition, support assembly 130 also has fluorescent tube support sector 141, in order to a lamp carrier 140a, each fluorescent tube 140a is arranged in the fluorescent tube support sector 141 respectively in the mode that does not contact with first diffuser plate 120, second diffuser plate 121.
Will be appreciated that first support portion 131 and second support portion 132 can be made by white or transparent material be preferably, not hinder the briliancy of light emitting module 100.
As mentioned above, owing between two diffuser plates and light source, support assembly is set, can avoid the buckling deformation of fluorescent tube and diffuser plate; In addition, utilize two support end 132a and the diffuser plate 120 and 121 butts of second support portion 132 between first diffuser plate 120, second diffuser plate 121 and the support assembly 130, can determine the location up and down between fluorescent tube and the diffuser plate by the length of second support portion 132; Again, in the present invention, support a plurality of fluorescent tubes and two diffuser plates simultaneously, not only reduce built-up time, can reduce object required when assembling, therefore more reduce cost, more stable manner support luminous tube with single support assembly.
Though disclosed the present invention in conjunction with above preferred embodiment; yet it is not in order to limiting the present invention, anyly is familiar with this operator, without departing from the spirit and scope of the present invention; when the change that can do some and retouching, so protection scope of the present invention should be with being as the criterion that claim was defined.
Claims (15)
1. light emitting module comprises:
One first diffuser plate;
One second diffuser plate;
One light source is arranged between this first diffuser plate, this second diffuser plate; And
One support assembly is arranged between this first diffuser plate and this second diffuser plate, in order to support this first diffuser plate, this second diffuser plate and this light source.
2. light emitting module as claimed in claim 1, wherein this support assembly comprises one first support portion and one second support portion, this first support portion is in order to supporting this light source, and this second support portion is in order to support this diffuser plate.
3. light emitting module as claimed in claim 2, wherein this first support portion is a strip component, this second support portion is a cylindrical component, and is substantially orthogonal between this first support portion and this second support portion.
4. light emitting module as claimed in claim 2, wherein this support assembly one-body molded member that this first support portion and this second support portion are constituted of serving as reasons.
5. light emitting module as claimed in claim 2, wherein this light source comprises a plurality of fluorescent tubes, and this each fluorescent tube mode parallel to each other is arranged on this first support portion, and this second support portion is arranged between the wantonly two adjacent fluorescent tubes in this each fluorescent tube.
6. light emitting module as claimed in claim 5, wherein this first support portion is made up of two members, and each member comprises a plurality of grooves, and this fluorescent tube is arranged on these members via this each groove.
7. light emitting module as claimed in claim 5, wherein this first support portion has a plurality of holes, and each fluorescent tube passes each hole respectively.
8. double side liquid crystal display comprises:
One first framework;
One second framework;
One first diffuser plate is arranged on this first framework;
One second diffuser plate is arranged on this second framework;
One light source is arranged between this first framework and this second framework, and respectively with this first, second diffuser plate both set a distance of being separated by; And
One support assembly is arranged between this first diffuser plate and this second diffuser plate, in order to support this first diffuser plate, this second diffuser plate and this light source.
9. double side liquid crystal display as claimed in claim 8, wherein this support assembly comprises one first support portion and one second support portion, this first support portion is in order to supporting this light source, and this second support portion system is in order to support this diffuser plate.
10. double side liquid crystal display as claimed in claim 9, wherein this first support portion is a strip component, this second support portion is a cylindrical component, comes down to orthogonal between this first support portion and this second support portion.
11. double side liquid crystal display as claimed in claim 9, wherein this support assembly one-body molded member that this first support portion and this second support portion are constituted of serving as reasons.
12. double side liquid crystal display as claimed in claim 9, wherein this light source comprises a plurality of fluorescent tubes, and this each fluorescent tube mode parallel to each other is arranged on this first support portion, and this second support portion is arranged between the wantonly two adjacent fluorescent tubes in this each fluorescent tube.
13. double side liquid crystal display as claimed in claim 12, wherein this first support portion is made up of two members, and each member comprises a plurality of grooves, and this fluorescent tube is arranged on this each member via this each groove.
14. double side liquid crystal display as claimed in claim 12, wherein this first support portion has a plurality of holes, and each fluorescent tube passes each hole respectively.
15. double side liquid crystal display as claimed in claim 12, it also comprises a fluorescent tube support sector, and this fluorescent tube support sector is connected in this first framework and this second framework in order to the two ends with each fluorescent tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100019521A CN100399140C (en) | 2004-01-16 | 2004-01-16 | Doublesided liquid crystal display and luminous module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100019521A CN100399140C (en) | 2004-01-16 | 2004-01-16 | Doublesided liquid crystal display and luminous module thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1558278A true CN1558278A (en) | 2004-12-29 |
| CN100399140C CN100399140C (en) | 2008-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100019521A Expired - Fee Related CN100399140C (en) | 2004-01-16 | 2004-01-16 | Doublesided liquid crystal display and luminous module thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100399140C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303470B (en) * | 2007-05-09 | 2011-06-01 | 奇美电子股份有限公司 | Display apparatus of two-sided screen |
| CN109188741A (en) * | 2018-10-30 | 2019-01-11 | 内蒙古创维智能科技有限公司 | A kind of LCD TV packaging technology |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05119703A (en) * | 1991-10-24 | 1993-05-18 | Nec Corp | Backlight |
| JP2001210126A (en) * | 2000-01-31 | 2001-08-03 | Sharp Corp | Lamp holder and back light device |
| JP2002358928A (en) * | 2001-05-31 | 2002-12-13 | Harison Toshiba Lighting Corp | Fluorescent lamp and backlight |
| JP2003043481A (en) * | 2001-07-31 | 2003-02-13 | Nec Corp | Backlight unit and liquid crystal display device using the same |
| KR100485325B1 (en) * | 2001-12-21 | 2005-04-25 | 주식회사 우영 | Lamp holder assembly and back light using the same |
| KR100873070B1 (en) * | 2002-06-05 | 2008-12-09 | 삼성전자주식회사 | Back light assembly and liquid crystal display device using the same |
-
2004
- 2004-01-16 CN CNB2004100019521A patent/CN100399140C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303470B (en) * | 2007-05-09 | 2011-06-01 | 奇美电子股份有限公司 | Display apparatus of two-sided screen |
| CN109188741A (en) * | 2018-10-30 | 2019-01-11 | 内蒙古创维智能科技有限公司 | A kind of LCD TV packaging technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100399140C (en) | 2008-07-02 |
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Granted publication date: 20080702 Termination date: 20210116 |