CN1564067A - Backlight assembly - Google Patents
Backlight assembly Download PDFInfo
- Publication number
- CN1564067A CN1564067A CN 200410034824 CN200410034824A CN1564067A CN 1564067 A CN1564067 A CN 1564067A CN 200410034824 CN200410034824 CN 200410034824 CN 200410034824 A CN200410034824 A CN 200410034824A CN 1564067 A CN1564067 A CN 1564067A
- Authority
- CN
- China
- Prior art keywords
- diffuser plate
- light source
- backlight assembly
- fixed part
- support sector
- 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.)
- Granted
Links
- 125000006850 spacer group Chemical group 0.000 claims description 38
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 7
- 238000007665 sagging Methods 0.000 description 4
- 238000007323 disproportionation reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The backlight module includes back frame board at first fixed part, a light source setup on the back frame board, diffuser plate above the light source, and a spacing component between back frame board and the diffuser plate. The spacing component includes a support part, a base part and an extending part. The support part supports the diffuser plate, making the light source and the diffuser plate keep a desired distance. The support part possesses a reflecting layer to reflect light from light source. Base part connected to the support part includes a pawn part and an extending part. The pawn part is utilized to buckle back frame board. The extending part connects the support part and pawn part as well as the first fixed part. At least the first fixed part is able to fix the base part.
Description
Technical field
The present invention is relevant for a kind of backlight assembly, has spacer member and makes and kept both backlight assembly of set a distance between diffuser plate and the light source about a kind of especially.
Background technology
As shown in Figure 1, known backlight liquid crystal display assembly 100 has and is arranged at the light source (figure shown in be planar light source) 10 of the back of the body on the deckle board 20, and the light that is sent by light source 10 presents equally distributed state through after the diffusion of diffuser plate 30.Yet reach above-mentioned effect, the set distance H of must being separated by between diffuser plate 30 and the light source 10 is so that the light that light source 10 is penetrated is able to even mixing.
But diffuser plate 30 produces distortion easily because of weight of itself or heat effects that light source 10 sent sagging, make the distance H between diffuser plate 30 and the light source 10 be difficult for keeping this set value, therefore be necessary to design a kind of member of keeping the distance between diffuser plate 30 and the light source 10 between diffuser plate 30 and the light source 10.
Disclose a kind of conical spacer (spacer) that is used for backlight assembly as Japanese patent laid-open 10-326517 number, this taper shape spacer keeps the distance between cylindrical shape fluorescent tube and the diffuser plate, this spacer is to be made by transparent or white material, to avoid causing the inequality of brightness.
The Jap.P. spy opens the stationary installation that has disclosed a kind of fluorescent tube of backlight assembly for 2001-210126 number in addition, and this stationary installation can also keep the distance between each fluorescent tube except protecting the fluorescent tube, also can keep the distance between fluorescent tube and the diffuser plate simultaneously.
The present invention is desirable to provide the design of the different spacer member of another structure, to be used for supporting diffuser plate, can prevent that the diffuser plate distortion is to keep the distance between diffuser plate and the lamp source.
Summary of the invention
In view of this, purpose of the present invention just is to provide a kind of spacer member, can prevent that the diffuser plate distortion is to keep the distance between diffuser plate and the lamp source.
Another object of the present invention is to provide a kind of backlight assembly that uses above-mentioned spacer member.
For achieving the above object, the invention provides a kind of backlight assembly, this backlight assembly comprises: one is provided with the back of the body deckle board of at least one first fixed part; One is arranged at the light source on this back of the body deckle board; One is arranged at the diffuser plate of the top of this light source; And a spacer member, this spacer member is arranged between this back of the body deckle board and this diffuser plate, and comprises a support sector, this support sector supports this diffuser plate, makes this light source and this diffuser plate keep a set distance, and a base portion, this base portion is connected in this support sector, and is fixed on this back of the body deckle board; Wherein, this support sector has a reflection horizon, and this reflection horizon is formed at the surface of this support sector, is used to reflect the light of this light source; This base portion comprises that one is fastened on the hook part of this back of the body deckle board, and an extension, and this extension connects this support sector and this hook part, and connects this first fixed part; Above-mentioned at least one first fixed part is used for fixing above-mentioned base portion.
In backlight assembly of the present invention, above-mentioned light source can be a planar light source.
In backlight assembly of the present invention, this support sector comprises along one first supporter of the strip of the first direction extension that is parallel to this diffuser plate, this first supporter has a contact site that is contacted with this diffuser plate, and at least one side, this side is connected in this contact site, and is a set angle with this diffuser plate; Above-mentioned reflection horizon is formed on this side.
In backlight assembly of the present invention, this support sector comprises that also the structure of this second supporter is identical with this first supporter along one second supporter of the strip of second direction extension.
In backlight assembly of the present invention, this back of the body deckle board is provided with at least one first fixed part that is used for fixing above-mentioned base portion, and this light source is provided with at least one second fixed part simultaneously, and this second fixed part is used for fixing this base portion corresponding to the first above-mentioned fixed part.
In backlight assembly of the present invention, this first fixed part can comprise one first connecting hole, and this extension runs through in this first connecting hole.This second fixed part can comprise second connecting hole that overlaps with this first connecting hole, and this extension runs through in this first and second connecting hole.
In backlight assembly of the present invention, this first holding section can comprise first slot along this first direction extension, and this extension runs through in this first slot.This second fixed part can comprise second slot that overlaps with this first slot, and this extension runs through in this first and second slot.
The present invention uses the spacer member of above-mentioned structure, can make to keep a suitable distance between light source and the diffuser plate, avoids diffuser plate to be out of shape the sagging brightness disproportionation that causes because of being heated, and also can make the better effect of diffuser plate performance simultaneously.
For above and other objects of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and in conjunction with the accompanying drawings, be described in detail below.
Description of drawings
Fig. 1 is the sectional view of known backlit assembly.
Fig. 2 is the stereographic map of backlight assembly of the present invention.
Fig. 3 is the cut-open view along the A-A line of Fig. 2.
Fig. 4 is the front elevation of spacer member of the present invention.
Fig. 5 is the stereographic map of another embodiment of the present invention.
Fig. 6 is the stereographic map of another embodiment of the present invention.
Fig. 7 is the part amplification view of Fig. 6.
Fig. 8 is the view sub-anatomy of spacer member shown in Figure 7.
Fig. 9 a is the three-dimensional exploded view of spacer member shown in Figure 7.
Fig. 9 b is the three-dimensional exploded view of another kind of spacer member.
The reference numeral explanation:
10～light source; 20～back of the body deckle board; 30～diffuser plate; 100,200～backlight assembly; 1000～planar light source; 1010～the second slots; 2000～back of the body deckle board; 2010～the first slots; 3000～diffuser plate; 5000～spacer member; 5010～support sector; 5012～shoulder; 5020～extension; 5030～hook part; 5040～top; 6000,7000,7000 '～spacer member; 8000～bolt.
Embodiment
In the present embodiment, be example particularly with backlight assembly with planar light source, the present invention is done detailed explanation.
Fig. 2 is the stereographic map of backlight assembly of the present invention.Fig. 3 is the cut-open view along the A-A line of Fig. 2.Fig. 4 is the front elevation of spacer member of the present invention.
As shown in Figure 2, planar light source 1000 is arranged on the back of the body deckle board 2000 of backlight assembly, the spacer member 5000 of one strip is extended and is arranged between planar light source 1000 and the diffuser plate 3000 along the x direction, the top of spacer member 5000 can form a contact site 5040, be contacted with diffuser plate 3000, can make whereby to keep a set distance between planar light source 1000 and the diffuser plate 3000.
As shown in Figure 3, back of the body deckle board 2000 is provided with three first slots 2010, is provided with three second slots 1010 on planar light source 1000, overlaps with above-mentioned three first slots 2010 respectively.The structure of spacer member 5000 comprises a support sector 5010, one extensions 5020 and a hook part 5030 as shown in Figure 4.Get back to Fig. 3, hook part 5030 has two engagings and colludes from outer counter to being fastened on the back of the body deckle board 2000; Extension 5020 is a both sides of the chest shape sheet, being used for connecting support sector 5010 and this two engagings colludes, and extend through first slot 2010 and second slot 1010, and the junction of support sector 5010 and extension 5020 forms a shoulder 5012, shoulder 5012 is connected to the edge of second slot 1010, therefore when being fastened on back of the body deckle board 2000 by hook part 5030, shoulder 5012 is connected to planar light source 1000, spacer member 5000 is fixed between planar light source 1000 and the diffuser plate 3000, and the height of support sector 5101 is equal to the distance between planar light source 1000 and the diffuser plate 3000 generally, make contact site 5040 can be connected to diffuser plate 3000, and reach the effect of support.
Except the spacer member 5000 of extending along the x direction, another spacer member (not shown) also can be set extend the y direction, the support that forms cruciform or cross shaped head with spacer member 5000 is constructed, and strengthens supporting effect, makes diffuser plate 3000 more be difficult for sagging distortion.
In addition, can form the reflection horizon on the two sides of support sector 5010, the light that is sent with plane of reflection light source 1000 is to avoid because of the phenomenon that spacer member produces brightness disproportionation is set; The reflection horizon can form with the material of metal or other high reflectance.And greatly slightly 20 °～60 ° of angles between these two sides.
Except being provided with of above-mentioned first, second slot 2010,1010, also above-mentioned first, second slot can be changed into the design of a plurality of first, second connecting holes, the shape of extension 5020 and hook part 5030 also needs the corresponding structure that change to column certainly.
As shown in Figure 5, a plurality of conical spacer member 6000 are arranged on the planar light source 1000.So, this spacer member 6000 can be transparent or reflectorized material make.The support sector of spacer member 6000 and extension (not shown) are cylindricality.
Fig. 6 represents another embodiment of the present invention, and a plurality of spacer member 7000 are arranged between each planar lamp source 1000.Fig. 7 represents that spacer member 7000 is arranged at the cut-open view between the planar lamp source 1000.Spacer member 7000 is fixed between the planar lamp source 1000 by bolt 8000, and Fig. 8 and Fig. 9 a represent the exploded view of spacer member 7000 and bolt 8000.Also can use the bigger spacer member 7000 ' of another kind of diameter (shown in Fig. 9 b).
Present embodiment is to be that example is done explanation with the planar light source, but also can use support structure of the present invention at the backlight assembly that uses the cylindrical shape fluorescent tube, and support structure of the present invention can reach the support effect better than known technology.
The present invention uses the spacer member of above-mentioned structure, can make to keep a suitable distance between light source and the diffuser plate, avoids diffuser plate to be out of shape the sagging brightness disproportionation that causes because of being heated, and also can make the better effect of diffuser plate performance simultaneously.Spacer member of the present invention in addition is a strip, can reach than the better support effect of known technology.
Though the present invention with preferred embodiment openly as above; 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 do some the change and the retouching of permission, so protection scope of the present invention should claims be defined is as the criterion with application.
Claims (10)
1. backlight assembly comprises:
One is provided with the back of the body deckle board of at least one first fixed part;
One is arranged at the light source on this back of the body deckle board;
One is arranged at the diffuser plate of the top of this light source; And
One spacer member, this spacer member are arranged between this back of the body deckle board and this diffuser plate, and comprise a support sector, this support sector supports this diffuser plate, makes this light source and this diffuser plate keep a set distance, and a base portion, this base portion is connected in this support sector, and is fixed on this back of the body deckle board;
Wherein, this support sector has a reflection horizon, and this reflection horizon is formed at the surface of this support sector, is used to reflect the light of this light source.
2. backlight assembly as claimed in claim 1 is characterized in that: this base portion comprises that one is fastened on the hook part of this back of the body deckle board, and an extension, and this extension connects this support sector and this hook part, and connects this first fixed part; Above-mentioned at least one first fixed part is used for fixing above-mentioned base portion.
3. backlight assembly as claimed in claim 2 is characterized in that: this support sector comprises first supporter of a strip, and this first supporter extends along a first direction that is parallel to this diffuser plate.
4. backlight assembly as claimed in claim 3 is characterized in that: this first supporter has a contact site, and this contact site is contacted with this diffuser plate; At least one side, this side is connected in this contact site, and is a set angle with this diffuser plate; Wherein this reflection horizon is formed on this side.
5. backlight assembly as claimed in claim 4 is characterized in that: this support sector also comprises second supporter of a strip, and this second supporter extends along a second direction, and the structure of this second supporter is identical with this first supporter.
6. as claim 2 or 3 described backlight assemblies, it is characterized in that: this first fixed part comprises one first connecting hole, and this extension runs through in this first connecting hole.
7. backlight assembly as claimed in claim 3 is characterized in that: this first fixed part comprises one first slot, and this first slot extends along this first direction, and this extension runs through in this first slot.
8. backlight assembly as claimed in claim 2 is characterized in that: this light source is provided with at least one second fixed part, and this second fixed part is used for fixing this base portion corresponding to the first above-mentioned fixed part.
9. backlight assembly as claimed in claim 8 is characterized in that: this second fixed part comprises second connecting hole that overlaps with this first connecting hole, and this extension runs through in this first and second connecting hole.
10. backlight assembly as claimed in claim 8 is characterized in that: this second fixed part comprises second slot that overlaps with this first slot, and this extension runs through in this first and second slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100348247A CN100487538C (en) | 2004-04-15 | 2004-04-15 | Backlight assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100348247A CN100487538C (en) | 2004-04-15 | 2004-04-15 | Backlight assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1564067A true CN1564067A (en) | 2005-01-12 |
| CN100487538C CN100487538C (en) | 2009-05-13 |
Family
ID=34481546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100348247A Expired - Fee Related CN100487538C (en) | 2004-04-15 | 2004-04-15 | Backlight assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100487538C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465736C (en) * | 2005-04-04 | 2009-03-04 | 三星电子株式会社 | Backlight unit and liquid crystal display device employing the same |
| CN100465735C (en) * | 2005-04-04 | 2009-03-04 | 三星电子株式会社 | Back light unit and liquid crystal display employing the same |
| CN101201509B (en) * | 2006-10-04 | 2010-06-23 | 索尼株式会社 | Backlight unit and liquid crystal display device |
| CN101336350B (en) * | 2006-02-03 | 2010-06-23 | 夏普株式会社 | Illumination device and liquid crystal display device |
| CN1892356B (en) * | 2005-06-28 | 2010-12-15 | 乐金显示有限公司 | Backlight unit and liquid crystal display device |
| US7978282B2 (en) | 2007-12-07 | 2011-07-12 | Samsung Electronics Co., Ltd. | Liquid crystal display |
| CN101408695B (en) * | 2007-10-08 | 2011-09-21 | 颖台科技股份有限公司 | Backlight module with two optical thin plates |
| CN102305371A (en) * | 2010-03-30 | 2012-01-04 | Skc哈斯显示器薄膜有限公司 | Diffusion bar with spacer collar ring |
-
2004
- 2004-04-15 CN CNB2004100348247A patent/CN100487538C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465736C (en) * | 2005-04-04 | 2009-03-04 | 三星电子株式会社 | Backlight unit and liquid crystal display device employing the same |
| CN100465735C (en) * | 2005-04-04 | 2009-03-04 | 三星电子株式会社 | Back light unit and liquid crystal display employing the same |
| US7740364B2 (en) | 2005-04-04 | 2010-06-22 | Samsung Electronics Co., Ltd. | Backlight unit and liquid crystal display device employing the same |
| CN1892356B (en) * | 2005-06-28 | 2010-12-15 | 乐金显示有限公司 | Backlight unit and liquid crystal display device |
| US8004631B2 (en) | 2005-06-28 | 2011-08-23 | Lg Display Co., Ltd. | Backlight unit and liquid crystal display device having the same |
| CN101336350B (en) * | 2006-02-03 | 2010-06-23 | 夏普株式会社 | Illumination device and liquid crystal display device |
| CN101201509B (en) * | 2006-10-04 | 2010-06-23 | 索尼株式会社 | Backlight unit and liquid crystal display device |
| CN101408695B (en) * | 2007-10-08 | 2011-09-21 | 颖台科技股份有限公司 | Backlight module with two optical thin plates |
| US7978282B2 (en) | 2007-12-07 | 2011-07-12 | Samsung Electronics Co., Ltd. | Liquid crystal display |
| CN102305371A (en) * | 2010-03-30 | 2012-01-04 | Skc哈斯显示器薄膜有限公司 | Diffusion bar with spacer collar ring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100487538C (en) | 2009-05-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 |