CN100416375C - Fixed support device applicable to backlight assembly of liquid crystal display - Google Patents
Fixed support device applicable to backlight assembly of liquid crystal display Download PDFInfo
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- CN100416375C CN100416375C CNB2005100044710A CN200510004471A CN100416375C CN 100416375 C CN100416375 C CN 100416375C CN B2005100044710 A CNB2005100044710 A CN B2005100044710A CN 200510004471 A CN200510004471 A CN 200510004471A CN 100416375 C CN100416375 C CN 100416375C
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- diffuser plate
- fluorescent tube
- fixed
- support device
- groove
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Abstract
The present invention relates to a fixing and supporting device for a back light module of a liquid crystal display. The present invention comprises a fixing element for a lamp tube, a locking element at the bottom of the fixing element for a lamp tube, an O type ring in a slot of the fixing element for a lamp tube, and a supporting element for a diffuser plate on the fixing element for a lamp tube, wherein the locking element is composed of two polygonal flat plates which are arranged in parallel and a fixing stub used for separating the two polygonal flat plates, the two polygonal flat plates have the same shape and size, and apex angles of the two polygonal flat plates are staggered.
Description
Technical field
The present invention relates to a kind of LCD, particularly relate to a kind of backlight liquid crystal display assembly.
Background technology
Large-scale in the past LCD (Liquid Crystal Display; LCD) product of Ying Yonging is mainly mobile computer and desktop LCD monitor (LCD Monitor), and that the characteristic of the backlight assembly that requires mainly is is in light weight, volume is little, and thin thickness.Large-scale now LCD has been marched toward epoch of LCD TV, therefore now when the large-scale backlight of the large-scale LCD of exploitation, enough video picture brightness (requiring briliancy at least more than 450cd/m2), broad visual angle (the sell goods specification can reach 170 ° at present), distinct picture contrast (about 500: 1 of the present LCD tv product watched must consideration can be arranged; About 1000: 1 of plasm TV product) and standardized serviceable life (at present product test value about 60,000 hours).
Under above specification is considered, the technology main flow of above large-scale LCD when straight-down negative (direct light type) backlight assembly just becomes present coupling 30.Direct type backlight assembly provides back side light source in LCD, because the performance quality of direct type backlight assembly can directly have influence on the quality of LCD, be considerable assembly in the LCD assembly therefore.Generally speaking, direct type backlight assembly comprises and is fixed in the some column type fluorescent tubes on the reflecting plate and is positioned at diffuser plate on the fluorescent tube.Wherein, reflecting plate to the viewing area, prevents the loss of light in order to the light launched of reflection fluorescent tube simultaneously, to improve the service efficiency of light.Diffuser plate is handled in order to carry out even scattering for the light from fluorescent tube, to reach the uniform surface light source effect.
It should be noted that because the size of the diffuser plate in the required backlight assembly of large-scale LCD, fluorescent tube is also bigger therefore sagging quite easily or distortion.Is example with thickness between the diffuser plate of 2-3 millimetre, owing to have bigger volume and weight corresponding to the diffuser plate of this thickness, is subjected to the relation of its deadweight very easily and causes modification or sagging in installation process.In addition, under the influence of temperature that fluorescent tube produced and its ambient humidity, light and temperature, also cause the distortion of diffuser plate quite easily.
In addition, because employed fluorescent tube length is all above more than 30 o'clock, and its diameter is usually only between the 3-4 millimetre, and design improperly causes the sagging of fluorescent tube quite easily and is out of shape.Sagging, the distortion fluorescent tube except can't provide uniform light luminance, the easier phenomenon that occurs dim spot, bright spot and luminance nonuniformity on the LCD that causes.
For addressing the above problem, there is known technology to come fixed lamp tube and support diffuser plate simultaneously in conjunction with lamp fixed components and thimble (pin).Yet the known forced pin (press-fit pegs) that uses is fixed on lamp fixed components in the hole of reflecting plate more, and therefore forced pin can protrude in outside the bottom surface of reflecting plate.In making assembling process, protrude in outer forced pin regular meeting and in the hole of reflecting plate, get loose because of collision, cause fluorescent tube to break or other variety of problems.
Summary of the invention
Therefore purpose of the present invention is exactly at fixed support device that a kind of backlight assembly of liquid crystal display is provided and the backlight assembly that contains this fixed support device.This fixed support device is in backlight assembly, and the weight that can support diffuser plate also firmly is fixed on fluorescent tube on the reflecting plate, and is difficult for getting loose in the fixation holes of reflecting plate.
According to above-mentioned and other purpose of the present invention, a kind of fixed support device that is applicable to backlight assembly of liquid crystal display is proposed.This stationary installation comprises lamp fixed components, is positioned at the locking member of the bottom of lamp fixed components, O type ring and diffuser plate support component.Wherein, lamp fixed components has groove to hold the fluorescent tube in the backlight assembly.Locking member is constituted with the fixedly short column that is connected two polygon flat boards by two polygons that are arranged in parallel are dull and stereotyped, and the identical and drift angles its two polygon flat boards of the shape of these two polygon flat boards stagger just mutually.O type ring is arranged in the groove of lamp fixed components, is used for reaching around fixed lamp tube the effect of buffering.And the diffuser plate support component is fixed in the top of lamp fixed components, is used for supporting the diffuser plate of backlight assembly.
According to above-mentioned and other purpose of the present invention, a kind of backlight assembly of liquid crystal display that is applicable to is proposed.This backlight assembly comprises reflecting plate, some fluorescent tubes, above-mentioned fixed support device and diffuser plate.Wherein, reflecting plate has at least one polygon hole, its geomery all geomery with the polygon flat board of the locking member of fixed support device is identical so that two polygon flat boards of locking member can pass through respectively in regular turn and be embedded in this polygon hole in.
According to a preferred embodiment of the present invention, above-mentioned lamp fixed components and locking member are formed in one.
According to another preferred embodiment of the present invention, above-mentioned lamp fixed components and diffuser plate support component are made for using transparent material.
According to the another preferred embodiment of the present invention, above-mentioned O type ring has plurality of holes, dispels the heat in order to fluorescent tube.
As mentioned above, the fixed support device of large-scale backlight assembly of liquid crystal display provided by the present invention, lamp fixed components and O type ring that utilization has groove fix fluorescent tube, again by be fixed in lamp fixed components on the diffuser plate support component support diffuser plate.Because every tubes is equipped with an above-mentioned fixed support device to I haven't seen you for ages, therefore can fixes every tubes effectively and support the weight of diffuser plate.Especially the exterior design of the locking member of lamp fixed components bottom makes locking member protrude in the bottom surface that the reflecting plate bottom surface portions can extremely be pressed close to reflecting plate, and can be fixed in tightly in the hole of reflecting plate, therefore be difficult for coming because of collision gets loose locking member in the hole of reflecting plate.
Description of drawings
For above and other objects of the present invention, feature, advantage and embodiment can be become apparent, being described in detail as follows of accompanying drawing:
Fig. 1 is the diagrammatic cross-section of expression according to a kind of backlight assembly of liquid crystal display of a preferred embodiment of the present invention.
Fig. 2 is the schematic perspective view of expression according to the fixed support device of a kind of backlight assembly of liquid crystal display of a preferred embodiment of the present invention.
Fig. 3 is the schematic perspective view of expression according to a kind of diffuser plate support component of a preferred embodiment of the present invention.
Fig. 4 is expression according to a kind of lamp fixed components of a preferred embodiment of the present invention and is positioned at the schematic perspective view of locking member of its bottom and the synoptic diagram of partial reflection plate.
Fig. 5 is the schematic perspective view of expression according to a kind of O type ring of a preferred embodiment of the present invention.
The reference numeral explanation
100: backlight assembly 150: fixed support device
200: reflecting plate 210: the polygon hole
300: lamp fixed components 310: groove
320: sidewall 330: hole
400: locking member 410,420: polygon flat board
430: fixing short column 500:O type ring
510: body 520: hole
600: fluorescent tube 700: the diffuser plate support component
710: body 720: retaining element
730: go up plane 740: groove
800; Diffuser plate
Embodiment
The backlight assembly that the invention provides a kind of fixed support device of backlight assembly of liquid crystal display and contain this fixed support device.This fixed support device is in backlight assembly, and the weight that can support diffuser plate also firmly is fixed on fluorescent tube on the reflecting plate, and is difficult for getting loose in the fixation holes of reflecting plate.
With reference to Fig. 1, it is the diagrammatic cross-section of expression according to a kind of backlight assembly of liquid crystal display of a preferred embodiment of the present invention.In Fig. 1, backlight assembly 100 includes reflecting plate 200, fixed support device 150, fluorescent tube 600 and diffuser plate 800.
With reference to Fig. 1-2, wherein Fig. 2 is the schematic perspective view of expression according to the fixed support device of a kind of backlight assembly of liquid crystal display of a preferred embodiment of the present invention simultaneously.In Fig. 1-2, fixed support device 150 comprises lamp fixed components 300, locking member 400, O type ring 500, diffuser plate support component 700.Wherein, lamp fixed components 300 is fixed on the reflecting plate 200 by locking member 400, has groove 310 to hold fluorescent tube 600.700 of diffuser plate support components be fixed on lamp fixed components 300 on, with the weight that supports diffuser plate 800 and prevent diffuser plate 800 distortion.600 of fluorescent tubes are fixed on by O type ring 500 in the groove 310 of lamp fixed components 300, to prevent fluorescent tube 600 distortion fractures.
In order more to clearly illustrate the fixed support element 150 of backlight assembly, again with reference to figure 3-5.In Fig. 3, show the schematic perspective view of diffuser plate support component 700.Diffuser plate support component 700 comprises body 710 and retaining element 720.According to present embodiment, retaining element 720 is the barbs that are formed at body 710 ends for a pair of.The upper end of body 710 has plane 730 on, in order to the weight that supports diffuser plate 800.Can have a groove 740 in the diffuser plate support component 700, can work in coordination with the spatial accommodations that form fluorescent tubes 600 and O type ring 500 with the groove 310 of lamp fixed components 300.
In Fig. 4, show lamp fixed components and be positioned at the schematic perspective view of locking member of its bottom and the synoptic diagram of partial reflection plate.Lamp fixed components 300 has groove 310, can work in coordination with the spatial accommodations that form fluorescent tubes 600 and O type ring 500 with the groove 740 of diffuser plate support component 700.In addition, on the sidewall 320 of lamp fixed components 300, have hole 330, just can hold the retaining element 720 of diffuser plate support component 700 so that diffuser plate support component 700 be fixed on lamp fixed components 300 on.
Bottom at the base plate 340 of lamp fixed components 300 then is provided with locking member 400.Locking member 400 is by the identical polygon dull and stereotyped 410 of two parallel up and down geomeries and 420 and the fixedly short column 430 of polygon flat board 410 and 420 each intervals formed.Wherein, the drift angle of polygon dull and stereotyped 410 and 420 staggers just mutually.According to a preferred embodiment of the present invention, lamp fixed components 300 can be formed in one with locking member 400.In addition, on reflecting plate 200, also have the polygon hole 210 identical with the geomery of polygon flat board 410 so that the polygon flat board of locking member 400 can pass through or be embedded in reflecting plate 200 polygon hole 210 in.
In Fig. 5, show the schematic perspective view of O type ring.Can have a plurality of holes 320 in the body 310 of O type ring 300, in order to fluorescent tube 600 heat radiations that are surrounded in it.
According to a preferred embodiment of the present invention, above-mentioned lamp fixed components 300, locking member 400, O type ring 500 are all with diffuser plate support component 700 and utilize transparent material to be made, and the light of being launched in order to fluorescent tube 600 can be utilized fully.For example lamp fixed components 300, locking member 400 can utilize polymethacrylate plastics (polymethacrylate plastic) or acryl plastics (acrylic plastic) with diffuser plate support component 700, make in molded mode.
The exterior design of the locking member of lamp fixed components of the present invention bottom is two polygon flat boards that stagger for corner.Therefore, when using the invention described above preferred embodiment, at first make the polygon flat board 420 that is positioned at the below pass the polygon hole 210 of reflecting plate 200, spin locking element 100 makes the polygon flat board 410 that is arranged in the top just can embed the polygon hole 210 of reflecting plate 200 again.Fixedly the short column 430 and the integral thickness of polygon flat board 410 that is positioned at the top are the thickness that is substantially equal to or is slightly larger than diffuser plate 200.So, locking member 400 protrudes in reflecting plate 200 bottom surface portions only are positioned at the below for partial fixing short column 430 and this polygon flat board 420.Owing to be positioned at the bottom surface that reflecting plate is extremely pressed close in dull and stereotyped 420 its bottom surfaces of the polygon of below, therefore can avoid collision; And because the drift angle of polygon below being positioned at dull and stereotyped 420 and polygon flat board 410 staggers mutually, therefore dull and stereotyped 410 drift angles of polygon also stagger with the drift angle of the polygon hole 210 of reflecting plate 200, thereby can prevent further that locking member from getting loose come in the hole of reflecting plate.
Though the present invention discloses as above with a preferred embodiment; yet it is not in order to limit the present invention; any those skilled in the art; without departing from the spirit and scope of the present invention; certainly can be used for a variety of modifications and variations, thus protection scope of the present invention should with claims scope was defined is as the criterion.
Claims (8)
1. fixed support device that is applicable to backlight assembly of liquid crystal display, this fixed support device comprises:
One lamp fixed components, this lamp fixed components have a groove in order to hold a fluorescent tube;
One is positioned at the locking member of the bottom of this lamp fixed components, this locking member comprise be arranged in parallel and with one fixedly short column be connected and two polygon flat boards of each interval, the identical and drift angles two polygon flat boards of the geomery of these two polygon flat boards stagger mutually; And
One diffuser plate support component, this diffuser plate support component is fixed in the top of this lamp fixed components, be used to support a diffuser plate, this diffuser plate support component has a groove, and the collaborative space that forms of the groove of this groove and this lamp fixed components holds this fluorescent tube.
2. fixed support device as claimed in claim 1 is characterized in that: these two polygonal shapes are to be triangle or quadrilateral.
3. fixed support device as claimed in claim 1 is characterized in that: this lamp fixed components is transparent.
4. fixed support device as claimed in claim 1 is characterized in that: this diffuser plate support component is transparent.
5. fixed support device as claimed in claim 1 is characterized in that: also comprise the O shape ring that is arranged in this groove, this O shape ring is used for around fixing this fluorescent tube.
6. fixed support device as claimed in claim 5 is characterized in that: this O shape ring has a plurality of holes in order to this fluorescent tube heat radiation.
7. fixed support device as claimed in claim 1 is characterized in that: this lamp fixed components and this locking member are to be formed in one.
8. backlight liquid crystal display assembly, this backlight assembly comprises:
One reflecting plate, this reflecting plate have at least one polygon hole;
At least one fluorescent tube;
One be positioned at this fluorescent tube on diffuser plate; And
At least one fixed support element, this fixed support element be positioned at this reflecting plate above, in order to the weight of fixing this fluorescent tube and supporting this diffuser plate, this fixed support element comprises:
One lamp fixed components, this lamp fixed components have a groove in order to hold this fluorescent tube;
One locking member, this locking member is positioned at the bottom of this lamp fixed components, be used for this lamp fixed components is locked in this polygon hole of this reflecting plate, this locking member comprise be arranged in parallel up and down and with one fixedly short column be connected and two polygon flat boards of each interval, these two polygons are dull and stereotyped identical with the geomery of this polygon hole, and these two polygonal drift angles stagger mutually; And
One diffuser plate support component, this diffuser plate support component is fixed in the top of this lamp fixed components, be used to support this diffuser plate, this diffuser plate support component has a groove, and the collaborative space that forms of the groove of this groove and this lamp fixed components holds this fluorescent tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100044710A CN100416375C (en) | 2005-01-12 | 2005-01-12 | Fixed support device applicable to backlight assembly of liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100044710A CN100416375C (en) | 2005-01-12 | 2005-01-12 | Fixed support device applicable to backlight assembly of liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1632662A CN1632662A (en) | 2005-06-29 |
| CN100416375C true CN100416375C (en) | 2008-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100044710A Expired - Fee Related CN100416375C (en) | 2005-01-12 | 2005-01-12 | Fixed support device applicable to backlight assembly of liquid crystal display |
Country Status (1)
| Country | Link |
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| CN (1) | CN100416375C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8100548B2 (en) | 2008-09-24 | 2012-01-24 | AU Optronics(Suzhou) Corp., Ltd. | Direct backlight module supporting apparatus and direct backlight module |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853335B (en) * | 2008-10-14 | 2014-11-26 | 华映视讯（吴江）有限公司 | Backlight module |
| US8485685B2 (en) | 2010-06-17 | 2013-07-16 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and lamp fastener thereof |
| CN101881424B (en) * | 2010-06-17 | 2011-11-16 | 深圳市华星光电技术有限公司 | Backlight module and lamp tube support frame thereof |
| CN202216110U (en) * | 2011-09-07 | 2012-05-09 | 北京京东方光电科技有限公司 | Bottom lighting type backlight device and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001266634A (en) * | 2000-03-16 | 2001-09-28 | Ohtsu Tire & Rubber Co Ltd :The | Reflector for back light and back light |
| CN1467548A (en) * | 2002-06-05 | 2004-01-14 | ���ǵ�����ʽ���� | Backlight assembly and liquid crystal display apparatus |
| US6722773B2 (en) * | 2002-07-22 | 2004-04-20 | Chi Mei Optoelectronics Corp. | Illuminating device and tube-like lamp thereof |
| US20040228111A1 (en) * | 2003-05-13 | 2004-11-18 | Chien-Hung Kuo | [back light module and liquid crystal display] |
-
2005
- 2005-01-12 CN CNB2005100044710A patent/CN100416375C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001266634A (en) * | 2000-03-16 | 2001-09-28 | Ohtsu Tire & Rubber Co Ltd :The | Reflector for back light and back light |
| CN1467548A (en) * | 2002-06-05 | 2004-01-14 | ���ǵ�����ʽ���� | Backlight assembly and liquid crystal display apparatus |
| US6722773B2 (en) * | 2002-07-22 | 2004-04-20 | Chi Mei Optoelectronics Corp. | Illuminating device and tube-like lamp thereof |
| US20040228111A1 (en) * | 2003-05-13 | 2004-11-18 | Chien-Hung Kuo | [back light module and liquid crystal display] |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8100548B2 (en) | 2008-09-24 | 2012-01-24 | AU Optronics(Suzhou) Corp., Ltd. | Direct backlight module supporting apparatus and direct backlight module |
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| Publication number | Publication date |
|---|---|
| CN1632662A (en) | 2005-06-29 |
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Granted publication date: 20080903 Termination date: 20210112 |