CN1700063A - LCD and back light module - Google Patents
LCD and back light module Download PDFInfo
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- CN1700063A CN1700063A CN 200410042413 CN200410042413A CN1700063A CN 1700063 A CN1700063 A CN 1700063A CN 200410042413 CN200410042413 CN 200410042413 CN 200410042413 A CN200410042413 A CN 200410042413A CN 1700063 A CN1700063 A CN 1700063A
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- liquid crystal
- crystal display
- space post
- display module
- base plate
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Abstract
The invention relates to a LCD and its backing optical module, the said LCD comprises an optical diaphragm set which has at least one optical diaphragm; the side backing optical module comprises a casing and at least one space post, with the casing has a baseboard positing at least one passing open-end and a inner optical diaphragm and a outer optical diaphragm; the space post is posited into passing open-end through outboard of baseboard and posited on the baseboard to support optical diaphragm. The trimming movement of the said backing optical module and optical diaphragm set can't make the said space post to hurt the optical diaphragm. When it has lamp failure that we must dismantle the casing, we should dismantle the space post from the outside of casing so as to avoid it hurt diffusion plane.
Description
Technical field
The present invention relates to a kind of LCD, and a kind of backlight liquid crystal display module that is used for, its space post is inserted by this module backlight outside and is fixed on the base plate of module backlight.
Background technology
Along with the progress of electronics technology, the accompanied electronic product is in vogue especially in daily life, increases day by day for the demand of the display compact, that power consumption is low.LCD (Liquid CrystalDisplay; LCD) because have that power consumption power is low, thermal value is few, the advantage of in light weight and non-light emitting type display or the like, be often used in this type of the electronic product, even progressively replace traditional cathode-ray tube display.
Generally speaking, LCD has a module backlight usually, in order to provide its liquid crystal panel required light source.This LCD can be used the module backlight of different types according to the difference of its purposes or size, and module backlight is divided into straight module backlight (down straight aphototropism mode set) of light source pattern down and the module backlight of side light source pattern (side type module backlight) usually.
As shown in Figure 1, Fig. 1 shows that one has the normally used LCD 100 of down straight aphototropism mode set.This LCD 100 comprises a module 102 backlight, an optical diaphragm group 104, a liquid crystal panel 106 and a housing 108.This module 102 backlight is disposed at the below of this liquid crystal panel 106, in order to the light that a light source is sent, is projected to equably on the surface of liquid crystal panel 106.Described module backlight 102 comprises a metal shell 103 and is disposed at a plurality of fluorescent tubes 110 of these metal shell 103 bottoms.Described optical diaphragm group 104 is disposed between module 102 backlight and the liquid crystal panel 106, and comprises one and be positioned at diffuser plate 104a, on this module 102 backlight and be positioned at diffusion sheet 104b on this diffuser plate 104a, an and prismatic lens 104c who is positioned on the diffusion sheet 104b.Described housing 108 is disposed on described liquid crystal panel 106 and the described optical diaphragm group 104, and combines with described module 102 backlight, so that described liquid crystal panel 106 and described optical diaphragm group 104 are fixed on the described module backlight 102.
As shown in Figure 2, these fluorescent tube 110 compartment of terrains are disposed in the described metal shell 103 formed cavitys 105, and are positioned under the viewing area of described liquid crystal panel 106, so that the light that it was sent is uniformly distributed on the described liquid crystal panel 106.
Because LCD develops towards large scale, and size is more and more big, then the briliancy demand is more and more high.Especially, directly descend light source pattern module backlight to be applicable to the large scale liquid crystal display, therefore more and more important.Yet, directly descend the rayed area of light source pattern module backlight more and more big, its thickness is constant.Therefore, the structural strength deficiency that this directly descends light source pattern module backlight will deform easily.In order to solve the problem of distortion, described straight light source pattern module backlight down is provided with plural space post and is disposed at its inside, in order to strengthen the structure that this directly descends light source pattern module backlight.
Moreover, refer again to Fig. 2, since each fluorescent tube 110 must and diffuser plate 104a between have a certain fixing distance, therefore the base plate 103a of described metal shell 103 is provided with at least one space post 112, in order to supporting this diffuser plate 104a so that each fluorescent tube 110 can with this diffuser plate 104a fixing distance of being separated by.Be coated with a glue-line (not shown) on the base plate 103a of described metal shell 103, and described space post 112 is fixed on the base plate 103a of described metal shell 103 by means of this glue-line.
At present, when optical diaphragm group is assembled in straight time light source pattern module backlight, earlier described space post 112 is inserted and is fixed on the base plate 103a of described metal shell 103 in preposition mode (promptly by base plate 103a top), then this diffuser plate 104a, this diffusion sheet 104b and this prismatic lens 104c are disposed on this module 102 backlight.Yet described diffuser plate 104a and plural blooming piece need by the fine setting location, and this trimming movement may cause the surface of this space post 112 scratch diffuser plate 104a, and produces scratch on diffuser plate 104a, and then causes bad demonstration image quality.
For this reason, just having to provide a kind of module backlight, and its space post is inserted by plate outer side and is fixed on the base plate of the module backlight of moulding, in order to solve the problem of scratch diffuser plate.
Summary of the invention
The object of the present invention is to provide a kind of module backlight, its space post is inserted by this module backlight outside and is fixed on the base plate of this module backlight, in order to avoid the scratch diffuser plate.
For reaching above-mentioned purpose, the invention provides a kind of module backlight, this module backlight is applied to a LCD.Described LCD comprises an optical diaphragm group, and this optical diaphragm group has at least one blooming piece and is configured on the described module backlight; This module backlight comprises a shell and reaches space post at least one by one; This shell has a base plate, and base plate is provided with at least one opening that runs through, and this base plate have an inboard towards described optical diaphragm group and the outside with respect to this inboard; Described space post is inserted described running through in the opening by the outside of described base plate, and is fixed on the described base plate, in order to support described optical diaphragm group.
According to module backlight of the present invention, the trimming movement of described optical diaphragm group can not cause described space post to avoid this blooming piece of scratch; If fluorescent tube breaks down and when needing the dismounting shell, described space post can be removed by the extraterrestrial sidesway that changes shell earlier, in order to avoid the described diffuser plate of scratch; Moreover space post of the present invention has simple and easy assembling and the convenient advantage that reclaims resource.
Description of drawings
Fig. 1 is the perspective exploded view of the LCD of known technology;
Fig. 2 is the diagrammatic cross-section of the LCD of Fig. 1 along hatching line 2-2;
Fig. 3 is the perspective exploded view of LCD of the present invention;
Fig. 4 is the LCD of Fig. 3, when not disposing space post, along the diagrammatic cross-section of hatching line 4-4;
Fig. 5 is the LCD of Fig. 3, during the configuration space post, along the diagrammatic cross-section of hatching line 5-5;
Fig. 6 is the diagrammatic cross-section of LCD of the present invention, and it shows the diagrammatic cross-section of the space post of the first embodiment of the present invention;
Fig. 7 is the schematic perspective view of the space post of the first embodiment of the present invention;
Fig. 8 is the diagrammatic cross-section of LCD of the present invention, and it shows the diagrammatic cross-section of the space post of the second embodiment of the present invention;
Fig. 9 is the schematic perspective view of the space post of the second embodiment of the present invention;
Figure 10 is the diagrammatic cross-section of LCD of the present invention, and it shows the diagrammatic cross-section of the space post of the third embodiment of the present invention;
Figure 11 a is the perspective exploded view of the space post of the third embodiment of the present invention;
Figure 11 b is the schematic perspective view of the space post of the third embodiment of the present invention;
The figure number explanation:
LCD 100 module 102 metal shells 103 backlight
Base plate 103a optical diaphragm group 104 diffuser plate 104a
Diffusion sheet 104b prismatic lens 104c cavity 105
Liquid crystal panel 106 housings 108 fluorescent tubes 110
Space post 112 LCD 200 modules 202 backlight
Shell 203 base plate 203a optical diaphragm group 204
Diffuser plate 204a diffusion sheet 204b prismatic lens 204c
Space post 312 teats 314 pars intermedias 316
Stopper 317 afterbodys 318 external threads 322
Teat 414 pars intermedias 416 stoppers 417
External thread 422 internal threads 424 instruments 425
Teat 514 pars intermedias 516 stoppers 517
Groove 522 overhead kick portions 532 tail ends 534
Jag 536
Embodiment
For allow above-mentioned purpose of the present invention, feature and advantage can be more obvious, embodiments of the invention cited below particularly, and cooperate appended diagram are described in detail below:
With reference to figure 3, the LCD 200 of one embodiment of the invention.This LCD 200 comprises a module 202 backlight (as straight light source pattern module backlight down), an optical diaphragm group 204, a liquid crystal panel 206 and a housing 208.Described module backlight 202 is configured in the below of described liquid crystal panel 206 and described optical diaphragm group 204, in order to the light that a light source is sent, is projected to equably on the surface of described liquid crystal panel 206.Described module backlight 202 comprises a shell 203, as metal shell, and a plurality of fluorescent tubes 210, as cold-cathode tube, be disposed at the bottom of described shell 203.Described optical diaphragm group 204 is configured between described module backlight 202 and the described liquid crystal panel 206, and comprise a diffuser plate 204a and an a plurality of blooming piece that is positioned on the described module backlight 202, as diffusion sheet 204b on the diffuser plate 204a and prismatic lens 204c as described in being positioned at.Described housing 208 is configured on described liquid crystal panel 206 and the described optical diaphragm group 204, and combines with described module 202 backlight, so that described liquid crystal panel 106 and described optical diaphragm group 204 are fixed on the described module backlight 202.Described fluorescent tube 210 compartment of terrains are configured in the described shell 203 formed cavitys 205, and are positioned under the viewing area of described liquid crystal panel 206, so that the light that it was sent is uniformly distributed on the described liquid crystal panel 206.
With reference to figure 4, described base plate 203a has the inboard and outside with respect to this inboard towards diffuser plate 204a.When described optical diaphragm group 204 is assembled in this module 202 backlight, earlier described diffuser plate 204a and a plurality of blooming piece are configured on this module 202 backlight, then with described diffuser plate 204a and a plurality of blooming piece fine setting location, at last the rearmounted mode of at least one space post 212 usefulness (promptly by base plate 203a below or its outside) being inserted one of described base plate 203a runs through in the opening 211 and is fixed on the base plate 203a of described shell 203, in order to support described diffuser plate 204a, as shown in Figure 5.Therefore, the trimming movement of described diffuser plate 204a and a plurality of blooming pieces can not cause the lower surface of the described diffuser plate 204a of described space post 212 scratches.Moreover if described fluorescent tube 210 faults and must dismounting during this shell 203, then this space post 312 can be earlier removed by the below or the outside of described shell 203, in order to avoid the described diffuser plate 204a of scratch.
Again with reference to figure 5, described this space post 212 make each fluorescent tube 210 can with the described diffuser plate 204a fixing distance of being separated by.Moreover described space post 212 is strengthened the structure of described module 202 backlight, avoids making described module backlight 202 to deform.
With reference to figure 6 and Fig. 7, the space post 312 that shows the first embodiment of the present invention among the figure is fixed in described base plate 203a in the mode that screw thread locks.Described space post 312 comprises a teat 314, a pars intermedia 316, a stopper 317 and an afterbody 318.Described teat 314 contacts with described diffuser plate 204a, and is generally white or transparent taper, and its material is polycarbonate (polycarbonate; PC) or organic glass (PMMA).Described pars intermedia 316 can be cylindric, is connected in this teat 314, and is provided with external thread 322.Described stopper 317 can be the cap shape, comprises flat or nut shape, and profile then can be circular or square, and is connected in described pars intermedia 316, and is positioned at the outside of described base plate 203a.Described afterbody 318 is connected in described stopper 317, and it can be en plaque, as semicircular plate, rotates with hand in order to make things convenient for the user.
The opening 211 that runs through of described base plate 203a is provided with internal thread 324, and this internal thread 324 is corresponding to the external thread 322 of described pars intermedia 316.Must insert this when running through opening 211 by described base plate 203a below when described space post 312, the user rotates the afterbody 318 of described space post 312 with hand.The external thread 322 of this pars intermedia 316 is engaged in the described internal thread 324 that runs through opening 211, so in the cavity 205 with the described module 200 backlight of teat 314 precessions of described space post 312.When the stopper 317 of described space post 312 stopped at described base plate, then described space post 312 was fixed on the base plate 203a of described shell 203.In like manner, when described space post 312 must be when running through of described base plate 203a takes out in the opening 211, the user so breaks away from this space post 312 the base plate 203a in described shell 203 with the afterbody 318 of the described space post 312 of hand backward rotation.The advantage that space post 312 of the present invention has simple and easy assembling and makes things convenient for resource to reclaim.
Moreover with reference to the 6th and 7 figure, described space post 312 also can comprise a plurality of interconnecting or independently dispel the heat separately hole 326 or groove in addition again, in order to the heat in the cavity 205 that distributes described shell 203.
With reference to figure 8 and Fig. 9, show among the figure that the space post 412 of the second embodiment of the present invention locks local formula with screw thread, be fixed in described base plate 203a.This space post 412 is similar to described space post 312 substantially, and similarly assembly indicates similar label.This space post 412 comprises a teat 414, a pars intermedia 416 and a stopper 417.Described teat 414 is contacted with described diffuser plate 204a.Described pars intermedia 416 is connected in described teat 414, and is provided with external thread 422.Described stopper 417 is connected in described pars intermedia 416, and is positioned at the outside of described base plate 203a, and it can be the nut shape, as hexagonal configuration, in order to make things convenient for the user by an instrument 425, rotates as the hexagon wrench.
The opening 211 that runs through of described base plate 203a is provided with internal thread 424, and it is corresponding to the external thread 422 of described pars intermedia 416.When described space post 412 must be placed in describedly when running through opening 211 by described base plate 203a below, user's tool using 425 rotates the stopper 417 of described space post 412.The external thread 422 of described pars intermedia 416 is engaged in the described internal thread 424 that runs through opening 211, so teat 414 precessions of described space post 412 is moulded in the cavity 205 of module 200 backlight.When the stopper 417 of described space post 412 stopped at described base plate 203a, then this space post 412 was fixed on the base plate 203a of described shell 203.In like manner, when described space post 412 must be when running through of described base plate 203a takes out in the opening 211, the stopper 417 of user's tool using 425 space post that backward rotation is moulded 412 so breaks away from described space post 412 the base plate 203a in described shell 203.The advantage that space post 412 of the present invention has the assembling security and makes things convenient for resource to reclaim.
Moreover again with reference to figure 8 and Fig. 9, described space post 412 also comprises a plurality of heat radiation holes 426 in addition, in order to the heat in the cavity 205 that distributes described shell 203.
With reference to Figure 10 and Figure 11 a-Figure 11 b, show the space post 512 of the third embodiment of the present invention among the figure, this space post 512 is fixed in this base plate 203a in the mode of mechanism's engaging.This space post 512 comprises a pillar body 513 and an overhead kick portion 532.Described pillar body 513 has a teat 514, a pars intermedia 516 and a stopper 517.Described teat 514 is contacted with described diffuser plate 204a.Described pars intermedia 516 can be cylindric or rectangle column etc., is connected in described teat 514, and has the outer rim that a groove 522 is positioned at described pars intermedia 516.Described stopper 517 is connected in described pars intermedia 516, and is positioned at the outside of described base plate 203a.Described overhead kick portion 532 has a tail end 534 and a jag 536, and this jag 536 can be sticked in the groove 522 of the pars intermedia of moulding 516.Described overhead kick portion 532 can be one and has the overhead kick portion that elastic material is manufactured.
The opening 211 that runs through of described base plate 203a can be circle or rectangular aperture, in order to the pars intermedia 516 corresponding to described pillar body 513.When described space post 512 must be placed in described when running through opening 211 by described base plate 203a below, the user earlier inserts the described opening 211 that runs through with described pillar body 513, then the jag 536 of described overhead kick portion 532 is inserted and is sticked in the groove 522 of described pars intermedia 516.The jag 536 of this overhead kick portion 532 catches on described base plate 203a, and so the teat 514 with described space post 512 is fixed in the cavity 205 of described module backlight 200.When the stopper 517 of described space post 512 stopped at described base plate 203a, then described space post 512 was fixed on the base plate 203a of described shell 203.In like manner, when described space post 512 must be when running through of described base plate 203a takes out in the opening 211, the user removes described overhead kick portion 532 earlier, and then removes described pillar body 513, so described space post 512 is broken away from the base plate 203a in described shell 203.The advantage that space post 512 of the present invention has simple and easy assembling and makes things convenient for resource to reclaim.
Moreover again with reference to figure 11a and Figure 11 b, described space post 512 is a hollow form, and is communicated with the groove 522 of described pars intermedia 516.Gap between described jag 536 and the described groove 522 can be in order to the heat in the cavity 205 that distributes described shell 203.
Though the present invention discloses with previous embodiment, so it is not in order to limiting the present invention, anyly is familiar with those skilled in the art, without departing from the spirit and scope of the present invention, and when doing various changes and modification.Therefore protection scope of the present invention is as the criterion with the protection domain of claim.
Claims (30)
1, a kind of backlight liquid crystal display module that is used for comprises:
One optical diaphragm group;
One shell, this shell has a base plate, and base plate is provided with one and runs through opening, an inboard and outside, and described inboard is towards described optical diaphragm group, and the described outside is with respect to this inboard; And a space post, this space post is inserted described running through in the opening by the outside of described base plate, and is fixed on the described base plate, in order to support described optical diaphragm group.
2, by the described backlight liquid crystal display module that is used for of claim 1, wherein, described optical diaphragm group comprises a diffuser plate.
3, by the described backlight liquid crystal display module that is used for of claim 1, wherein, described space post comprises:
One teat is contacted with described optical diaphragm group;
One pars intermedia is connected in described teat; And
One stopper is connected in described pars intermedia.
4, by the described backlight liquid crystal display module that is used for of claim 3, wherein, described teat is a cone-shaped.
5, by the described backlight liquid crystal display module that is used for of claim 3, wherein, described pars intermedia is a column.
6, by the described backlight liquid crystal display module that is used for of claim 3, wherein, described space post comprises an afterbody and is connected in described stopper.
7, by the described backlight liquid crystal display module that is used for of claim 6, wherein, described afterbody is an en plaque.
8, by the described backlight liquid crystal display module that is used for of claim 3, wherein, described space post also comprises a heat radiation hole.
9, by the described backlight liquid crystal display module that is used for of claim 3, wherein, described space post also comprises a heat radiation groove.
10, by the described backlight liquid crystal display module that is used for of claim 3, wherein, described space post is a hollow form.
11, by the described backlight liquid crystal display module that is used for of claim 3, wherein, described stopper is positioned at the outside of described base plate.
12, by the described backlight liquid crystal display module that is used for of claim 3, wherein, described stopper is the cap shape.
13, by the described backlight liquid crystal display module that is used for of claim 12, wherein, the cap shape of described stopper is flat or nut shape.
14, by the described backlight liquid crystal display module that is used for of claim 3, wherein, the mode that described space post locks with screw thread is fixed in this base plate.
15, by the described backlight liquid crystal display module that is used for of claim 14, wherein, the opening that runs through of described shell is provided with an internal thread.
16, by the described backlight liquid crystal display module that is used for of claim 15, wherein, described pars intermedia is provided with an external thread, and this external thread is corresponding to the described internal thread that runs through opening.
17, by the described backlight liquid crystal display module that is used for of claim 3, wherein, described space post is fixed in described base plate in mechanism's engaging ground mode.
18, by the described backlight liquid crystal display module that is used for of claim 17, wherein, described space post also comprises an overhead kick portion, and this overhead kick portion is fixed in described teat in the described module backlight.
19, by the described backlight liquid crystal display module that is used for of claim 18, wherein, described pars intermedia has a groove, and described overhead kick portion has a jag, and this jag is sticked in described groove.
20, by the described backlight liquid crystal display module that is used for of claim 18, wherein, described overhead kick portion is the overhead kick portion that an elastic material is manufactured.
21, by the described backlight liquid crystal display module that is used for of claim 20, wherein, has a gap between described jag and described groove.
22, a kind of LCD comprises:
One liquid crystal panel;
One module backlight is configured in the below of described liquid crystal panel, comprises:
One optical diaphragm group;
One shell, this shell has a base plate, and base plate is provided with one and runs through opening, an inboard and outside, and described inboard is towards described optical diaphragm group, and the described outside is with respect to described inboard; And
One space post, this space post is inserted described running through in the opening by the outside of described base plate, and is fixed on the described base plate, in order to support described optical diaphragm group; And
One housing, this housing combines with described module backlight, with fixing described liquid crystal panel.
23, by the described LCD of claim 22, wherein, described space post comprises:
One teat, this teat is contacted with described optical diaphragm group;
One pars intermedia, this pars intermedia is connected in described teat; And
One stopper, this stopper is connected in described pars intermedia.
24, by the described LCD of claim 23, wherein, described space post also comprises an afterbody, and this afterbody is connected in described stopper.
25, by the described LCD of claim 22, wherein, described space post also comprises a heat radiation hole.
26, by the described LCD of claim 22, wherein, described space post is a hollow form.
27, by the described LCD of claim 22, wherein, described space post is fixed in described base plate in the mode that screw thread locks.
28, by the described LCD of claim 22, wherein, described space post is fixed in described base plate in the mode of mechanism's engaging.
29, by the described LCD of claim 28, wherein, described space post also comprises an overhead kick portion, and this overhead kick portion is fixed on described teat in the described module backlight.
30, by the described LCD of claim 29, wherein, described pars intermedia has a groove, and described overhead kick portion has a jag, and this jag is sticked in described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100424132A CN100375920C (en) | 2004-05-18 | 2004-05-18 | LCD and back light module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100424132A CN100375920C (en) | 2004-05-18 | 2004-05-18 | LCD and back light module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1700063A true CN1700063A (en) | 2005-11-23 |
| CN100375920C CN100375920C (en) | 2008-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100424132A Active CN100375920C (en) | 2004-05-18 | 2004-05-18 | LCD and back light module |
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| CN (1) | CN100375920C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344675B (en) * | 2007-07-10 | 2011-11-02 | 奇美电子股份有限公司 | Backlight module and LCD device |
| TWI559056B (en) * | 2015-12-11 | 2016-11-21 | 友達光電股份有限公司 | Light source module |
| CN109844605A (en) * | 2016-06-29 | 2019-06-04 | 法雷奥舒适驾驶助手公司 | Video generation device and relevant head-up display including thermally contacting area |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0764084A (en) * | 1993-08-31 | 1995-03-10 | Toshiba Lighting & Technol Corp | Illumination device, liquid crystal display device, back light and display device |
| JPH10326517A (en) * | 1997-05-23 | 1998-12-08 | Tama Electric Co Ltd | Back surface lighting device |
| JP2001210126A (en) * | 2000-01-31 | 2001-08-03 | Sharp Corp | Lamp holder and back light device |
| KR100640987B1 (en) * | 2000-10-14 | 2006-11-02 | 엘지.필립스 엘시디 주식회사 | backlight assembly of liquid crystal display module |
| CN2455001Y (en) * | 2000-11-17 | 2001-10-17 | 范裕雄 | Improved clip device of mobile telephone |
| JP3803554B2 (en) * | 2001-02-16 | 2006-08-02 | 株式会社日立製作所 | Liquid crystal display |
| TW567291B (en) * | 2002-07-19 | 2003-12-21 | Au Optronics Corp | Direct type backlight module |
-
2004
- 2004-05-18 CN CNB2004100424132A patent/CN100375920C/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344675B (en) * | 2007-07-10 | 2011-11-02 | 奇美电子股份有限公司 | Backlight module and LCD device |
| TWI559056B (en) * | 2015-12-11 | 2016-11-21 | 友達光電股份有限公司 | Light source module |
| CN109844605A (en) * | 2016-06-29 | 2019-06-04 | 法雷奥舒适驾驶助手公司 | Video generation device and relevant head-up display including thermally contacting area |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100375920C (en) | 2008-03-19 |
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