CN1719317A - Direct downward type back light module - Google Patents
Direct downward type back light module Download PDFInfo
- Publication number
- CN1719317A CN1719317A CN 200410062455 CN200410062455A CN1719317A CN 1719317 A CN1719317 A CN 1719317A CN 200410062455 CN200410062455 CN 200410062455 CN 200410062455 A CN200410062455 A CN 200410062455A CN 1719317 A CN1719317 A CN 1719317A
- Authority
- CN
- China
- Prior art keywords
- supporting construction
- backlight module
- type backlight
- direct type
- reflection unit
- 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.)
- Pending
Links
Images
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The present invention discloses a vertical downward type backlight module, including a diffusion plate, a reflecting device placed under the diffusion plate, a lighting lamp tube placed between said diffusion plate and reflecting device and a supporting structure equipped with lamp tube covering portion, placed on said reflecting device and positioned between said diffusion plate and said reflecting device for supporting said lighting lamp tube.
Description
Technical field
The present invention relates to a kind of direct type backlight module and support fixed sturcture, particularly relate to a kind of supporting construction that can support diffuser plate and illuminating lamp tube group simultaneously that has, solving diffuser plate and illuminating lamp tube group because of cold and hot variation, and the buckling deformation that its material rigidity deficiency is caused.
Background technology
In Fig. 1, the synoptic diagram of a kind of existing direct type backlight module (referring to Taiwan patent announcement number No. 567291) is disclosed, it comprises a diffuser plate, a reflecting plate, a rhombus lens, a diffusion sheet, two support columns and a plurality of illuminating lamp tube.Wherein, this reflecting plate is arranged under this diffuser plate, this rhombus lens is arranged on this diffuser plate, this diffusion sheet is arranged on the rhombus lens, this support column is arranged on this reflecting plate, and between this diffuser plate and this reflecting plate, and this illuminating lamp tube is arranged between this diffuser plate and this reflecting plate.
In Fig. 1, in order to support the diffuser plate in the existing direct type backlight module, can many stilts be set between reflecting plate and diffuser plate usually, to avoid diffuser plate after buckling deformation, make the optical characteristics variation of direct type backlight module.Yet when the size of LCD panel was big more, it is big and elongated that the size of its illuminating lamp tube also can become relatively, and therefore, illuminating lamp tube also can produce distortion, and then influences the optical characteristics of whole direct type backlight module.
In Fig. 2, the synoptic diagram of second kind of existing direct type backlight module (Jap.P. 5-209703 number) is to solve above-mentioned illuminating lamp tube problem on deformation.This direct type backlight module, it mainly is provided with a support column to avoid the illuminating lamp tube distortion below illuminating lamp tube.Yet the shortcoming of existing direct type backlight module also can become greatly relatively for the size of its diffuser plate when the size of LCD panel is big more, and causes the heat energy buckling deformation of diffuser plate because of illuminating lamp tube, and then influences whole direct type backlight module optical characteristics.
Summary of the invention
In view of the problems referred to above that prior art exists, fundamental purpose of the present invention provides a kind of direct type backlight module, can make diffuser plate and illuminating lamp tube be subjected to supporting and preventing distortion simultaneously.
Therefore, even the present invention when the size of LCD panel or diffuser plate become bigger the time, diffuser plate and illuminating lamp tube group can not produce buckling deformation because rigidity own is not enough yet, or LCD is when long-time the use, diffuser plate and illuminating lamp tube can not produce distortion because of the physical influence of expanding with heat and contract with cold yet, and therefore can not influence the characteristic of whole downward back tabula rasa.
The present invention adopts as detailed below technical characterictic solving the above problems basically.Particularly, the present invention includes a diffuser plate, a reflection unit, be arranged under this diffuser plate, one illuminating lamp tube group is arranged between this diffuser plate and this counter the falling apart, and a supporting construction, be arranged on this reflecting plate, and between this diffuser plate and this reflecting plate, wherein, this supporting construction is to have a circular arc fluorescent tube covering part, illuminating lamp tube group system is capped under the circular arc covering part, and this fluorescent tube covering part can allow illuminating lamp tube be subjected to its support and prevent distortion.
In addition, more further this supporting construction its go up and can add to adorn at least one plunger again, anticipate promptly that this supporting construction comprises at least one plunger, and in order to support this diffuser plate and this illuminating lamp tube group simultaneously.
Further specify specific embodiments of the invention below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the diagrammatic cross-section of first kind of existing direct type backlight module;
Fig. 2 is the diagrammatic cross-section of second kind of existing direct type backlight module;
Fig. 3 A, Fig. 3 B are the diagrammatic cross-sections of the direct type backlight module of preferred embodiment of the present invention;
Fig. 4 A, Fig. 4 B are in the direct type backlight module of the present invention, the synoptic diagram of its supporting construction set-up mode;
Fig. 5 A, Fig. 5 B, Fig. 5 C, Fig. 5 D show different plunger shape of the present invention respectively;
Fig. 6 is that the various differences of supporting construction of the present invention are sticked in the mode on the reflecting plate;
Fig. 7 A, Fig. 7 B are that the fluorescent tube covering part of supporting construction of the present invention is a plurality of or single fluorescent tube covering part;
Fig. 8 A, Fig. 8 B, Fig. 8 C, Fig. 8 D are that the fluorescent tube covering part of supporting construction of the present invention can be U-shaped, circle, rectangle or polygonized structure, fluorescent tube covering part partial schematic diagram.
Fig. 9 is that support construction supports of the present invention is under fluorescent tube.
Wherein, Reference numeral:
10: direct type backlight module
20: diffuser plate
30: reflection unit
31: the conduit of reflecting plate
32: the perforation of reflecting plate
40: illuminating lamp tube
50: supporting construction
50 ': supporting construction (comprising plunger)
51: the fluorescent tube covering part
52: plunger
521: the holding section of plunger
60: engaging is colluded
Embodiment
Below in conjunction with description of drawings two kinds of preferred embodiments of the present invention.
Embodiment one, is used for the liquid crystal panel size hour:
See also Fig. 3 A and Fig. 4 A, straight down backlight module 10 of the present invention mainly includes a diffuser plate 20, one reflecting plates 30, an illuminating lamp tube 40, one supporting constructions 50 wherein, and this supporting construction 50 has a fluorescent tube coating portion 51.
In addition, reflecting plate 30 is arranged under diffuser plate 20 and the illuminating lamp tube 40.Illuminating lamp tube 40 is arranged between diffuser plate 20 and the reflecting plate 30.Supporting construction 50 is to be arranged on the reflecting plate 30, and between diffuser plate 20 and reflecting plate 30.
Shown in Fig. 3 A and Fig. 4 A, stilt 50 has a fluorescent tube covering part 51, and illuminating lamp tube 40 is directly to be capped in the fluorescent tube covering part 51 to be supported.
Because the material of this supporting construction 50 is for plastics have heat-resisting material concurrently, and can not cause this illuminating lamp tube 40 distortion, therefore, illuminating lamp tube 40 general normal conditions are the supports that are subjected to supporting construction 50.
In the present embodiment, this supporting construction 50 is arranged on this reflecting plate 30 and is a wavy shaped configuration roughly, the space size of the size of its size between diffuser plate 20 and reflecting plate 30.
In addition, the fluorescent tube covering part 51 of the supporting construction 50 of this preferred embodiment one is that first is inverted U-shaped, its diameter is more gapped slightly greatly than this illuminating lamp tube 40, and illuminating lamp tube 40 is covered in it down by fluorescent tube covering part 51, and reduces to illuminating lamp tube 40 temperature distortions own minimum.
Moreover, please refer to Fig. 4 A, can utilize adhesive means that this supporting construction 50 is fixed on the reflecting plate 30, another kind of mode is then offered a slotted eye 31 on reflecting plate 30 surfaces, just having another engaging colludes 60 under one supporting construction 50, can utilize the trip mode that the engaging of this stilt 50 is colluded 60 trips to the conduit 31 of reflecting plate 30, and support described illuminating lamp tube 40.
In addition, further again when the liquid crystal panel size increases, can set up at least one plunger 52 again on the supporting construction 50 of the present invention, form a supporting construction 50 ', below cooperate graphic explanation of the present invention preferable now
Embodiment two.
Embodiment two:
See also Fig. 3 B and 4B, straight backlight module 10 down of the present invention, mainly include the reflection unit 30 of a diffuser plate 20, one traditional forms, wherein an illuminating lamp tube 40, one supporting construction 50 ', this supporting construction has a fluorescent tube coating portion 51, and wherein, present embodiment two specifies and is, this supporting construction 50 ' at least one plunger 52 of can arranging in pairs or groups on it, meaning be supporting construction 50 ' its on can comprise at least one plunger 52 more.
In addition, this existing reflection unit 30 can be a reflecting plate, or a base plate that is pasted with reflector plate.
And existing reflection unit 30 is arranged under diffuser plate 20 and the illuminating lamp tube 40.Illuminating lamp tube 40 is arranged between diffuser plate 20 and the reflection unit 30.Supporting construction 50 ' be to be arranged on the reflection unit 30, and between diffuser plate 20 and reflection unit 30.
Shown in Fig. 3 B and Fig. 4 B, supporting construction 50 ' in order to support diffuser plate 20 and illuminating lamp tube 40 simultaneously.In addition, supporting construction 50 ' have a fluorescent tube covering part 51, illuminating lamp tube 40 directly is capped in the fluorescent tube covering part 51 and is supported.
Because this supporting construction 50 ' material, be to have heat-resisting material concurrently for plastics, and can not cause this diffuser plate 20 and illuminating lamp tube 40 distortion, so diffuser plate 20 general normal conditions, be be subjected to supporting construction 50 ' support, same situation, illuminating lamp tube 40 general normal conditions, be subjected to supporting construction 50 ' support.
In the present embodiment, this is arranged on this reflection unit 30 and is a wavy shaped configuration roughly, the size of its size is the space size between diffuser plate 20 and reflection unit 30, wherein supporting construction 50 ' in plunger 52 are the intervals that meet between diffuser plate 20 and the reflection unit 30, in order to support diffuser plate 20.
In addition, the supporting construction 50 of this preferred embodiment two ' fluorescent tube covering part 51 be that first is inverted U-shaped, its diameter and this illuminating lamp tube 40 are gapped slightly greatly, and illuminating lamp tube 40 is covered in it down by fluorescent tube covering part 51, and reduce to illuminating lamp tube 40 temperature distortion influences own minimum.
Moreover, please refer to Fig. 6, then offer a slotted eye 31 on reflection unit 30 surfaces, this supporting construction 50 ' under the side have another engaging and collude 60, can utilize the trip mode with this supporting construction 50 ' engaging collude 60, trip is to the conduit 31 of reflection unit 30.
Another kind of mode for supporting construction 50 ' plunger 52 below have a holding section 521, then offer a perforation 32 on reflection unit 30 surfaces, as shown in Figure 6, when with supporting construction 50 ' when being arranged on the reflection unit 30, be with supporting construction 50 ' plunger 52 holding sections 521, trip is to the perforation 32 of reflection unit 30; Perhaps can utilize adhesive means with supporting construction 50 ' be fixed on the reflection unit 30, also can with supporting construction 50 ' plunger 52 holding sections 521, the firmly gluing perforation 32 that is fixed to reflection unit 30; Or can utilize the male and female thread fiting mode, with supporting construction 50 ' holding section 521 be secured to the perforation 32 of reflection unit 30.
Supporting construction 50 of the present invention ', its fluorescent tube covering part 51, plunger 52 and holding section 521 thereof can have various shape and engaging method, and modes such as the perforation of reflection unit 30 or fluting, can according to the supporting construction 50 of correspondence ' holding section 521 and change.
Be respectively different plunger shapes as Fig. 5 A, Fig. 5 B, Fig. 5 C and Fig. 5 D.
As Fig. 6 is that the various different engaging methods of supporting construction 50 ' be fixed on the reflection unit 30 include engaging, gluing, screw-threaded coupling, modes such as fluting trip.
In addition supporting construction 50 ', its fluorescent tube covering part 51 can be a plurality of or single fluorescent tube covering part respectively shown in Fig. 7 A, Fig. 7 B.
Moreover supporting construction 50 ' fluorescent tube covering part 51 can be U-shaped, circle, rectangle or polygonized structure respectively as Fig. 8 A, Fig. 8 B, Fig. 8 C, Fig. 8 D, fluorescent tube covering part partial schematic diagram.
On the other hand, the fluorescent tube covering part of supporting construction of the present invention, the foregoing description all discloses and is coated on the fluorescent tube in a covered manner, but, this fluorescent tube covering part also can be supported under the fluorescent tube, by the clip mode as shown in Figure 9, to this, the present invention is not limited to its use-pattern.
In addition, aspect the supporting construction material of this example, for example can select for use: the polystyrene resin derivant is (as HIPS, ABS, MS, SAN or the like), acryl resin (Polymethyl methacrylate, PMMA), polycarbonate resin (Polycarbonate, PC), epoxy resin (Epoxy), silicones (Silicone), olefin resin (as PE, PP or the like), polyamide resin (as the Nylon resin), vibrin (as PET) etc.
Though the present invention is exposed in preferred embodiment; right its is not in order to limit the present invention; any those of ordinary skills; according to main design of the present invention and spirit; all can carry out corresponding equivalent variations and similar modification, so protection scope of the present invention is as the criterion with the scope that claims define.
Claims (13)
1. a direct type backlight module is characterized in that, comprising:
One diffuser plate;
One reflection unit is arranged under this diffuser plate;
One illuminating lamp tube is arranged between this diffuser plate and this reflection unit; And
One supporting construction has a fluorescent tube covering part, is arranged on this reflection unit, and between this diffuser plate and this reflection unit, in order to support this illuminating lamp tube.
2. direct type backlight module as claimed in claim 1 is characterized in that, this supporting construction further comprises: at least one plunger, be arranged on this reflection unit, and between this diffuser plate and this reflection unit, in order to support this diffuser plate.
3. direct type backlight module as claimed in claim 1 is characterized in that, this reflection unit is a reflecting plate.
4. direct type backlight module as claimed in claim 1 is characterized in that, this reflection unit is one to be pasted with the base plate of reflector plate.
5. direct type backlight module as claimed in claim 1 is characterized in that this reflecting plate has more a perforation, and the plunger of this supporting construction has more a holding section, in order to be sticked in the perforation.
6. direct type backlight module as claimed in claim 1 is characterized in that, this supporting construction is to be fixed in the perforation of this reflecting plate.
7. direct type backlight module as claimed in claim 1 is characterized in that, this fluorescent tube covering part of this supporting construction is first inverted U-shaped hole of scarce second U-shaped.
8. direct type backlight module as claimed in claim 1 is characterized in that this supporting construction causes the shape with a wave-like.
9. direct type backlight module as claimed in claim 1 is characterized in that, the fluorescent tube covering part of this supporting construction has a U-shaped shape.
10. the described direct type backlight module of claim 1 is characterized in that, the fluorescent tube covering part of this supporting construction has a rectangular shape.
11. the described direct type backlight module of claim 1 is characterized in that, the fluorescent tube covering part of this supporting construction has a polygonal shape.
12. the described direct type backlight module of claim 1 is characterized in that this supporting construction is made by plastic material.
13. the described direct type backlight module of claim 1, it is characterized in that the plastic material of this supporting construction is selected among polystyrene resin derivant, acryl resin, polycarbonate resin, epoxy resin, silicones, olefin resin, polyamide resin or the vibrin any one or its combination for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410062455 CN1719317A (en) | 2004-07-09 | 2004-07-09 | Direct downward type back light module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410062455 CN1719317A (en) | 2004-07-09 | 2004-07-09 | Direct downward type back light module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1719317A true CN1719317A (en) | 2006-01-11 |
Family
ID=35931187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410062455 Pending CN1719317A (en) | 2004-07-09 | 2004-07-09 | Direct downward type back light module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1719317A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398565B (en) * | 2007-09-28 | 2010-09-29 | 群康科技(深圳)有限公司 | Back light module unit and LCD device |
| CN102853335A (en) * | 2008-10-14 | 2013-01-02 | 华映视讯（吴江）有限公司 | Backlight module |
| CN104515043A (en) * | 2014-12-31 | 2015-04-15 | 深圳市华星光电技术有限公司 | Backlight module and display device |
-
2004
- 2004-07-09 CN CN 200410062455 patent/CN1719317A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398565B (en) * | 2007-09-28 | 2010-09-29 | 群康科技(深圳)有限公司 | Back light module unit and LCD device |
| CN102853335A (en) * | 2008-10-14 | 2013-01-02 | 华映视讯（吴江）有限公司 | Backlight module |
| CN104515043A (en) * | 2014-12-31 | 2015-04-15 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| US9983435B2 (en) | 2014-12-31 | 2018-05-29 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7407318B2 (en) | Spacer and backlight module using the same | |
| CN102147079B (en) | Backlight assembly having a plurality of light guide plates | |
| US7804554B2 (en) | Surface emitting device and liquid crystal display | |
| US7537373B2 (en) | Light guide plate and backlight module using the same | |
| CN101069122A (en) | Backlight assembly and LCD having the same | |
| CN1266492C (en) | Light-guiding plate and liquid crystal display device with same | |
| CN101046581A (en) | Back light unit and liquid crystal display device | |
| CN1940680A (en) | Backlight module and liquid crystal display using the same | |
| CN1779530A (en) | Side light-emitting device, backlight unit, and liquid crystal display apparatus | |
| CN1598665A (en) | Backlight assembly and display device having the same | |
| US20070139968A1 (en) | Light guide plate and backlight module using the same | |
| CN1651987A (en) | Backlight module of liquid crystal display and its support structure | |
| CN1740864A (en) | Prism sheet of liquid crystal display and back light unit using the same | |
| CN1227561C (en) | Plane light source device and liquid crystal display | |
| US7478940B2 (en) | Backlight module | |
| CN202158424U (en) | Backlight module and liquid crystal display apparatus | |
| CN1143162C (en) | Light conduction plate and its making method, area source and liquid crystal display unit with light conduction plate | |
| CN100345046C (en) | Backlight module | |
| US20100008063A1 (en) | Light diffusion plate and backlight module using the same | |
| CN1271459C (en) | Planar light source device and liquid crystal display device using it as back light module | |
| CN1719317A (en) | Direct downward type back light module | |
| CN1797106A (en) | Plate for guiding light and backlight module | |
| CN1831570A (en) | Optical diffusion plate and backlight module using the optical diffusion plate | |
| CN1696800A (en) | Downward luminous face member and downward face luminator | |
| CN1444711A (en) | Hollow surface illuminator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |