CN201138408Y - Directly-down back light module unit and liquid crystal display device - Google Patents
Directly-down back light module unit and liquid crystal display device Download PDFInfo
- Publication number
- CN201138408Y CN201138408Y CNU2007201715416U CN200720171541U CN201138408Y CN 201138408 Y CN201138408 Y CN 201138408Y CN U2007201715416 U CNU2007201715416 U CN U2007201715416U CN 200720171541 U CN200720171541 U CN 200720171541U CN 201138408 Y CN201138408 Y CN 201138408Y
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- China
- Prior art keywords
- blooming piece
- mode set
- down straight
- aphototropism mode
- straight aphototropism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 60
- 230000005142 aphototropism Effects 0.000 claims description 62
- 238000009792 diffusion process Methods 0.000 claims description 50
- 238000009434 installation Methods 0.000 claims description 10
- 239000012788 optical film Substances 0.000 abstract 7
- 239000000463 material Substances 0.000 description 16
- 239000003292 glue Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
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Abstract
The utility model provides a direct down backlight module and a liquid crystal display device with the direct down backlight module. The direct down backlight module includes a first optical film, a second optical film which is opposite to the first optical film and a first connecting part; the first connecting part is respectively connected with the first optical film and the second optical film. The first optical film, the second optical film and the first connecting part are integrated. The direct down backlight module has quite high reliability.
Description
Technical field
The utility model is about a kind of straight-down negative (Direct Type) module backlight and liquid crystal indicator.
Background technology
Liquid crystal indicator is because of having characteristics such as low diathermaneity, frivolous and power consumption be low, and ripe and innovation along with correlation technique, kind is various day by day, is widely used in fields such as mobile phone, personal digital assistant, Portable DVD player, mobile computer, personal computer and TV.Yet, because the liquid crystal panel of liquid crystal indicator itself is not had a characteristics of luminescence, so cooperate a module backlight just can reach display effect usually.
Different along with liquid crystal indicator size, structure and purposes, the structure of module backlight is also different.At present, module backlight is provided with the difference of position according to light source, mainly is divided into two kinds of side-light type module backlight and down straight aphototropism mode set.Wherein down straight aphototropism mode set is mainly used in the liquid crystal indicator of large-size, as LCD TV etc.
Seeing also Fig. 1, is a kind of perspective exploded view of prior art liquid crystal indicator.Frame 11, a liquid crystal panel 12, a direct-type backlight module 100 and a bonnet 13 before this liquid crystal indicator 10 comprises one.This liquid crystal panel 12 and these down straight aphototropism mode set 100 stacked settings are housed in this preceding frame 11 and this bonnet 13 cooperates and first receiving space (indicating) of formation.This down straight aphototropism mode set 100 comprises a diffusion sheet 110, a glue frame 120, a plurality of light source 130 and a reflector plate 140.This diffusion sheet 110 and these liquid crystal panel 12 adjacent settings, this reflector plate 140 and these bonnet 13 adjacent settings.This glue frame 120 is a rectangular frame structure, and itself and this bonnet 13 is fixed.This diffusion sheet 110, this glue frame 120 constitute one second receiving space (not indicating) to accommodate this a plurality of light sources 130 with this reflector plate 140.These a plurality of light sources 130 are the cathode fluorescent tubes that be arranged in parallel.
Light is after these a plurality of light sources 130 send, and directly through entering this liquid crystal panel 12 after these diffusion sheet 110 diffusions, another part is by these reflector plate 140 reflections, again by entering this liquid crystal panel 12 after these diffusion sheet 110 diffusions for part light.
Yet because this diffuser plate 110 only relies on this glue frame 120 to support its edges, the centre has that very large tracts of land is unsettled above these a plurality of light sources 130.When the size of this liquid crystal indicator 10 was big, the size of diffusion sheet 110 also can increase thereupon in this down straight aphototropism mode set 100.Because this diffusion sheet 110 has than large tracts of land and weight, in installation and use, be easy to cause the sagging or distortion in intermediate portion because of its deadweight, thereby cause the optical quality of this down straight aphototropism mode set 100 to reduce, and then the display effect of this liquid crystal indicator 10 is reduced.
The common solution of industry is to increase supporting component to be out of shape to avoid this diffusion sheet 110 between this diffusion sheet 110 and this reflector plate 140, thereby improves the optical quality of this down straight aphototropism mode set 100.Seeing also Fig. 2, is the side schematic view of another kind of prior art down straight aphototropism mode set.This down straight aphototropism mode set 200 is with the difference of this down straight aphototropism mode set 100: this down straight aphototropism mode set 200 further comprises a plurality of supporting components 250.One end butt reflector plate 240 of this supporting component 250, other end butt diffusion sheet 210 are avoided this diffusion sheet 210 distortion to keep this diffusion sheet 210 in the precalculated position.
But, because this diffusion sheet 210 has the tolerance clearance in the allowed band usually when assembling with this glue frame 220, during therefore in these down straight aphototropism mode set 200 vibrations or by impact, relative motion can take place with this supporting component 250 in this diffusion sheet 210, and cause chip or different sound because of phase mutual friction each other, this diffusion sheet 210 is sustained damage, and then cause the optical quality of this down straight aphototropism mode set 200 to descend.Therefore, the reliability of this down straight aphototropism mode set 200 is lower.
The utility model content
For solving the lower problem of prior art down straight aphototropism mode set reliability, be necessary the down straight aphototropism mode set that provides a kind of reliability preferable.
Simultaneously, also be necessary to provide a kind of liquid crystal indicator that adopts above-mentioned down straight aphototropism mode set.
A kind of down straight aphototropism mode set, it comprises second blooming piece and one first connecting portion that one first blooming piece, relative this first blooming piece are provided with, this first pontes does not connect this first blooming piece and this second blooming piece.This first blooming piece, this second blooming piece and this first connecting portion are integrative-structures.
A kind of liquid crystal indicator, it comprises the down straight aphototropism mode set of a liquid crystal panel and adjacent this liquid crystal panel.This down straight aphototropism mode set comprises second blooming piece and one first connecting portion that one first blooming piece, relative this first blooming piece are provided with, and this first pontes does not connect this first blooming piece and this second blooming piece.This first blooming piece, this second blooming piece and this first connecting portion are integrative-structures.
A kind of down straight aphototropism mode set, it comprises one first blooming piece, one second blooming piece and two sidewalls, this second blooming piece comprises two braces and a base plate, these two braces are arranged on this base plate two opposite edges, this first blooming piece is oppositely arranged with this base plate and links to each other by this brace, two braces of these two sidewalls and this link to each other, and this first blooming piece, this second blooming piece and this two sidewall are integrative-structures.
A kind of liquid crystal indicator, it comprises the down straight aphototropism mode set of a liquid crystal panel and adjacent this liquid crystal panel.This down straight aphototropism mode set comprises one first blooming piece, one second blooming piece and two sidewalls, this second blooming piece comprises two braces and a base plate, these two braces are arranged on this base plate two opposite edges, this first blooming piece is oppositely arranged with this base plate and links to each other by this brace, two braces of these two sidewalls and this link to each other, and this first blooming piece, this second blooming piece and this two sidewalls are integrative-structures.
Compared with prior art, because first blooming piece, second blooming piece and first connecting portion of the utility model down straight aphototropism mode set and liquid crystal indicator are structure as a whole, this integrative-structure has favorable rigidity, make this first blooming piece because of the tension force effect that is subjected to this first connecting portion can be because of self area reason such as big and weight cause distortion, make the optical quality of this down straight aphototropism mode set comparatively stable higher with reliability; Because sidewall is set, this down straight aphototropism mode set can be fastened with preceding frame by this sidewall, save space, number of assembling steps and cost thereby save bonnet.
Description of drawings
Fig. 1 is a kind of perspective exploded view of prior art liquid crystal indicator.
Fig. 2 is the side schematic view of another kind of prior art down straight aphototropism mode set.
Fig. 3 is the perspective exploded view of the utility model liquid crystal indicator first embodiment.
Fig. 4 is the perspective exploded view of the utility model liquid crystal indicator second embodiment.
Fig. 5 is the side schematic view of the utility model liquid crystal indicator the 3rd embodiment.
Embodiment
Seeing also Fig. 3, is the perspective exploded view of the utility model liquid crystal indicator first embodiment.Frame 31, a liquid crystal panel 32, a direct-type backlight module 300 and a bonnet 33 before this liquid crystal indicator 30 comprises one.This liquid crystal panel 32 and these down straight aphototropism mode set 300 stacked settings, and be housed in this preceding frame 31 and 33 combinations of this bonnet and in the receiving space (indicating) that forms.Should preceding frame 31 be rectangle frame body structures, it comprises four side 311.This four side 311 comprises a plurality of draw-in grooves 312.This bonnet 33 is rectangular configuration, and it comprises four sidewalls 335.This four sidewall 335 comprises a plurality of projections 336.The length of the four side 311 of frame 31 is slightly larger than the length of four sidewalls 335 of this bonnet 33 corresponding with it before being somebody's turn to do.These a plurality of draw-in grooves 312 are corresponding with this a plurality of projection 336.Should can fasten by this draw-in groove 312 and this projection 336 with this bonnet 33 by preceding frame 31.
This down straight aphototropism mode set 300 comprises a diffusion sheet 310, two first connecting portions 320, a light-source system 330 and reflector plates 340.This reflector plate 340 is rectangular configuration, and these two first connecting portions 320 are separately positioned on two relative long limits of this reflector plate 340.This diffusion sheet 310 links to each other by these two first connecting portions 320 with this reflector plate 340.The material of this first connecting portion 320 is identical with the material of this diffusion sheet 310, also can be identical with the material of this reflector plate 340.This diffusion sheet 310, this first connecting portion 320 and this reflector plate 340 are to utilize double-material jet formation technology or other technology, penetrate diffusion sheet 310 materials and reflector plate 340 materials simultaneously and one-body molded.This first connecting portion 320 is provided with the parts (not indicating) that are interlocked with this bonnet 33.This light-source system 330 is arranged between this diffusion sheet 310 and this reflector plate 340.This light-source system 330 comprises that a plurality of fluorescent tubes 331, are used to control circuit board 332 and a plurality of pin stationary installation 333 of these a plurality of fluorescent tube 331 luminosity.These a plurality of fluorescent tube 331 parallel interval are arranged.Each end of each fluorescent tube 331 is fixed on this reflector plate 340 by a pin stationary installation 333.The end that these a plurality of fluorescent tubes 331 are positioned at the same side is connected electrically in the same side of this circuit board 332 by this pin stationary installation 333.This pin stationary installation 333 comprises an elastomeric element (not indicating), and this elastomeric element is made of plastics.
This reflector plate 340 comprises a plurality of hole clippings 341, lay respectively at two relative minor faces of this reflector plate 340, and the number of the hole clipping 341 on every limit is more than or equal to the number of these a plurality of fluorescent tubes 331.Being centered close on the straight line of a plurality of hole clippings 341 of this of each limit, and this straight line is perpendicular to this first connecting portion 320.This pin stationary installation 333 is to be fixed among these a plurality of hole clippings 341 by this elastomeric element, and then fixes this light-source system 330.
During 30 assemblings of this liquid crystal indicator, this pin stationary installation 333 is installed at two ends that earlier will these a plurality of fluorescent tubes 331, and the one side is fixed on this circuit board 332.Secondly, the elastomeric element by this pin stationary installation 333 is retained on this light-source system 330 on this reflector plate 340.Then this first connecting portion 320 is retained on this bonnet 34 inboards.Again with these liquid crystal panel 32 stacked being arranged on this diffusion sheet 310, then should before frame 31 combine with these bonnet 34 outsides by this draw-in groove 312 and this projection 336, thereby finish the assembling of this liquid crystal indicator 30.
Compared to prior art, the diffusion sheet 310 of the utility model liquid crystal indicator 30, reflector plate 340 and two first connecting portions 320 are structure as a whole, this integrative-structure has favorable rigidity, make this diffusion sheet 310 because of the tension force effect that is subjected to these two first connecting portions 320 can be because of self area reason such as big and weight cause distortion, make the optical quality of this down straight aphototropism mode set 300 comparatively stable higher with reliability; In addition,, simplify the number of assembling steps of this down straight aphototropism mode set 300, increase the assembling yield because this diffusion sheet 310, this first connecting portion 320 and this reflector plate 340 are one-body molded.Thereby avoid shaking or impacted the infringement that causes to this diffusion sheet 310 because of this down straight aphototropism mode set 300 owing to can save support component.
Seeing also Fig. 4, is the perspective exploded view of the utility model liquid crystal indicator second embodiment.This liquid crystal indicator 40 is roughly the same with this liquid crystal indicator 30, and its key distinction is: down straight aphototropism mode set 400 further comprises two second connecting portions 460, and this second connecting portion 460 and first connecting portion 420 alternately connect into a rectangular frame.Four limits of diffusion sheet 410 link to each other with reflector plate 440 by two second connecting portions 460 of these two first connecting portions 420 and this.This second connecting portion 460 comprises an opening 461 and a plurality of fixing parts 462.These fixing parts 462 are buckle structures, are used for this second connecting portion 460 fixing with bonnet 43.Light-source system 430 is to pass this opening 461 to be seated between this reflector plate 440 and this diffusion sheet 410.
Seeing also Fig. 5, is the side schematic view of the utility model liquid crystal indicator the 3rd embodiment.Frame 51, a liquid crystal panel 52 and a direct-type backlight module 500 before this liquid crystal indicator 50 comprises one.This down straight aphototropism mode set 500 cooperate formation one receiving space (indicating) to accommodate this liquid crystal panel 51 with frame 51 before this.This down straight aphototropism mode set 500 comprises a diffusion sheet 510, a light-source system 530, a reflector plate 540, a plurality of support component 550 and two sidewalls 570.This light-source system 530 is identical with the light-source system 330 of the first embodiment liquid crystal indicator 30.This reflector plate 540 comprises a base plate 541 and two braces 542, and these two braces 542 are arranged on the relative both sides of base plate 541, and with 541 one-tenth one obtuse angles of this base plate.Two braces 542 of this diffusion sheet 510 and this engage.These two sidewalls 570 are arranged on this diffusion sheet 510 and these reflector plate 540 junctions, and it comprises a plurality of fixing parts (indicating), be used for should before frame 51 fix.These a plurality of support components 550 two ends connect this diffusion sheet 510 and this reflector plate 540 respectively, are to be used to the distortion that prevents that this diffusion sheet 510 from causing because of own wt.The material of these two sidewalls 570 is identical with the material of this reflector plate 540, and the material of these a plurality of support components 550 is identical with the material of this diffusion sheet 510.This diffusion sheet 510, this reflector plate 540, these a plurality of support components 550 and this two sidewalls 570 are to adopt the double-material jet formation technology one-body molded.
Compared to the liquid crystal indicator 30 of first embodiment, the down straight aphototropism mode set 500 of this liquid crystal indicator 50 comprises this two sidewalls 570, can directly be fastened with being somebody's turn to do preceding frame 51, therefore can save bonnet, saves space, number of assembling steps and cost.And this down straight aphototropism mode set 500 comprises a plurality of support components 550, is used to support this diffusion sheet 510, and these a plurality of support components 550 are one-body molded with this diffusion sheet 510 and reflector plate 540, improve the reliability of this down straight aphototropism mode set 500.
But, the utility model liquid crystal indicator is not limited to above embodiment: in first embodiment, these two first connecting portions 320 also can be arranged on two minor faces of this down straight aphototropism mode set 300, are used to connect the corresponding minor face of this diffusion sheet 310 and this reflector plate 340; Fixing parts on this liquid crystal indicator 300 also can be connecting hole etc.; This down straight aphototropism mode set 300 can be provided with support component as required; The material of this first connecting portion 320 can be identical with these diffusion sheet 310 materials, and its shape also can firmly support the shape of this diffusion sheet 310 for other, as cruciform, rhombus, rectangle or circle etc.Also support component is not set, support component can be set as required yet as this down straight aphototropism mode set 400 in second embodiment; The material of the twoth connecting portion 460 can with these diffusion sheet 440 materials, its shape also can for other can this diffusion sheet 410 of firm support shape, as cruciform, rhombus, rectangle or circle etc.In addition, in the 3rd embodiment, this sidewall 570 also can adopt the diffusion sheet material to make.The diffusion sheet of all embodiments and reflector plate are planar structures in the utility model, also can be designed to arc, bridge arch shape etc.; In the utility model in all embodiments except that diffusion sheet and reflector plate are set, other blooming piece such as blast sheet etc. also can be set, be used to replace diffusion sheet or reflector plate.
Claims (10)
1. down straight aphototropism mode set, it comprises second blooming piece that relative this first blooming piece with of one first blooming piece is provided with, it is characterized in that: this down straight aphototropism mode set further comprises one first connecting portion, this the first pontes does not connect this first blooming piece and this second blooming piece, and this first blooming piece, this second blooming piece and this first connecting portion are integrative-structures.
2. down straight aphototropism mode set as claimed in claim 1, it is characterized in that: this down straight aphototropism mode set further comprises a support component, this support component is this first blooming piece of butt and this second blooming piece respectively, and this support component and this first blooming piece are structure as a whole.
3. down straight aphototropism mode set as claimed in claim 1 is characterized in that: this first connecting portion is arranged on the long limit of this diffusion sheet, and its shape is a strip structure.
4. down straight aphototropism mode set as claimed in claim 1, it is characterized in that: this down straight aphototropism mode set further comprises one second connecting portion, this second connecting portion is arranged on the edge of this second blooming piece and adjacent with this first connecting portion, and this second connecting portion links to each other with this first blooming piece, this second blooming piece and this first connecting portion.
5. down straight aphototropism mode set as claimed in claim 4, it is characterized in that: this down straight aphototropism mode set further comprises a light-source system, this light-source system is arranged between this first blooming piece and this second blooming piece, this light-source system comprises a plurality of light sources and a plurality of pin stationary installation, and an end of each light source is connected on this second blooming piece by a pin stationary installation.
6. liquid crystal indicator, the down straight aphototropism mode set that it comprises a liquid crystal panel and adjacent this liquid crystal panel is characterized in that: this down straight aphototropism mode set is claim 1 to 5 any described down straight aphototropism mode set.
7. down straight aphototropism mode set, it comprises one first blooming piece and one second blooming piece, this second blooming piece comprises two braces and a base plate, these two braces are arranged on this base plate two opposite edges, this first blooming piece is oppositely arranged with this base plate and links to each other by this brace, it is characterized in that: this down straight aphototropism mode set further comprises two sidewalls, two braces of these two sidewalls and this link to each other, and this first blooming piece, this second blooming piece and this two sidewalls are integrative-structures.
8. down straight aphototropism mode set as claimed in claim 7 is characterized in that: this sidewall is connected in this brace and this first blooming piece junction.
9. liquid crystal indicator, the down straight aphototropism mode set that it comprises a liquid crystal panel and adjacent this liquid crystal panel is characterized in that: this down straight aphototropism mode set is claim 7 or 8 described down straight aphototropism mode set.
10. liquid crystal indicator as claimed in claim 9 is characterized in that: frame before this liquid crystal indicator further comprises, and each sidewall comprises a plurality of fixing parts, these fixing parts are to be used for this down straight aphototropism mode set and to be somebody's turn to do preceding frame fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201715416U CN201138408Y (en) | 2007-12-12 | 2007-12-12 | Directly-down back light module unit and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201715416U CN201138408Y (en) | 2007-12-12 | 2007-12-12 | Directly-down back light module unit and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201138408Y true CN201138408Y (en) | 2008-10-22 |
Family
ID=40039092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201715416U Expired - Fee Related CN201138408Y (en) | 2007-12-12 | 2007-12-12 | Directly-down back light module unit and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201138408Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102459995A (en) * | 2009-06-17 | 2012-05-16 | 夏普株式会社 | Illumination device, display device, and television receiver |
| CN106609959A (en) * | 2016-12-27 | 2017-05-03 | 广州弥德科技有限公司 | A direct type directional backlight source |
-
2007
- 2007-12-12 CN CNU2007201715416U patent/CN201138408Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102459995A (en) * | 2009-06-17 | 2012-05-16 | 夏普株式会社 | Illumination device, display device, and television receiver |
| CN106609959A (en) * | 2016-12-27 | 2017-05-03 | 广州弥德科技有限公司 | A direct type directional backlight source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081022 Termination date: 20161212 |
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| CF01 | Termination of patent right due to non-payment of annual fee |