CN1632665A - Liquid crystal display device and backlight assembly thereof - Google Patents
Liquid crystal display device and backlight assembly thereof Download PDFInfo
- Publication number
- CN1632665A CN1632665A CN 200510005834 CN200510005834A CN1632665A CN 1632665 A CN1632665 A CN 1632665A CN 200510005834 CN200510005834 CN 200510005834 CN 200510005834 A CN200510005834 A CN 200510005834A CN 1632665 A CN1632665 A CN 1632665A
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- air hole
- light source
- backlight assembly
- hole runner
- lcd device
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Abstract
It is a LCD device and its aphototropism element. The aphototropism element comprises one light source and one source supporting part, wherein the light source supporting part is connected with the light source to supporting the source and comprises one air channel and multiple air holes with at least one air hole connected with the channel to let the hot air generated by the source escape from the air channel to the outside.
Description
Technical field
The present invention relates to a kind of LCD and backlight assembly thereof, particularly relate to a kind of directly-down liquid crystal backlight assembly, it can strengthen hot natural convection effectively and reach fluorescent tube optimal luminescent efficient.
Background technology
Backlight assembly in the general LCD is used to provide required light source, because the backlight assembly size is increasing at present, backlight assembly is owing to be a confined space, therefore is easy to cause hot stack to make that assembly temperature is too high and then influences the service efficiency and the life-span of fluorescent tube.Yet, the required briliancy of direct type backlight assembly also improves constantly, and the quantity of fluorescent tube and supply capability also must improve, and this will make the fluorescent tube ambient temperature raise, even and caused increasing the quantity and the supply capability of fluorescent tube, but can't increase the situation of briliancy.Know clearly it,, make its briliancy can reduce along with the increase of running time on the contrary, the problem that causes the fluorescent tube briliancy to descend because the temperature in the backlight assembly is too high.
In order to improve the problem of hot stack, use the mode of heat radiation paster (as radiative material etc.) or heat abstractor (as fan etc.) to improve at present.Shown in Fig. 1 and 2, backlight assembly 10,10 ' comprises a light diffusing sheet 12, optical thin film layer (optical films) 13,14, a plurality of fluorescent tube (lamps) 15, a fluorescent tube support sector (lamp holder) 16, one framework (frame base) 11 and a plurality of heat radiation paster 17 (as shown in Figure 1), 18 (as shown in Figure 2) respectively.Heat radiation paster 17 or 18 is arranged at respectively on the downside 11a or upper side 11b of framework 11, in order to transmit heat to the external world.But these heat radiation pasters all belong to the mode that adds, the shortcoming of influential outward appearance and increase cost.
Therefore, how effectively overcoming the problem of backlight assembly heat, and effectively improve the optical appearance of backlight assembly, make the luminescence efficiency of fluorescent tube reach optimization, is one of the present problem that must actively solve.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of backlight assembly, can improve integral heat sink efficient effectively to improve the luminescence efficiency of briliancy, raising fluorescent tube.
Another object of the present invention is to provide a kind of LCD device with and backlight assembly, backlight assembly comprises a light source and a light source support sector, wherein light source support sector and light source butt, in order to supporting light sources, and comprise an air hole runner and a plurality of air hole, and at least one air hole is connected with the air hole runner, make hot gas nature that light source produces along air hole and the outside loss of air hole runner.
Again, light source comprises a plurality of fluorescent tubes, and fluorescent tube is parallel to each other.
Again, the bearing of trend of air hole runner is vertical haply with the bearing of trend of fluorescent tube.
Has at least one air hole between adjacent two fluorescent tubes again.
Again, air hole is vertical haply with the air hole runner.
Again, backlight assembly also comprises a framework, and with supporting light sources support sector, framework has a perforation, is communicated with the air hole runner.
Again, fluorescent tube is a cold cathode fluorescent tube.
Again, fluorescent tube is linear fluorescent tube.
Again, fluorescent tube is the U-shaped fluorescent tube.
Again, the cross sectional shape of air hole runner is to be selected from circle, ellipse, polygon or group's one or its combination wherein that irregular shape was formed.
Again in the present invention, provide a kind of LCD device, it comprises a liquid crystal panel and a backlight assembly, and liquid crystal panel has a display surface and a non-display surface.Backlight assembly is arranged at the below of the non-display surface of liquid crystal panel, and backlight assembly comprises a light source and a light source support sector, light source support sector and light source butt, in order to supporting light sources, light source support sector comprises an air hole runner and a plurality of air hole, and at least one air hole is connected with the air hole runner, makes hot gas that light source produces along air hole and the outwards loss naturally of air hole runner.
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 known backlight assembly partial cutaway schematic;
Fig. 2 is known another backlight assembly partial cutaway schematic;
Fig. 3 A-1 is an embodiment exploded perspective view that shows LCD of the present invention;
Fig. 3 A-2 is an embodiment combination stereogram that shows LCD of the present invention;
Fig. 3 B-1 is another embodiment exploded perspective view that shows LCD of the present invention;
Fig. 3 B-2 is another embodiment combination stereogram that shows LCD of the present invention;
Fig. 4 is the enlarged diagram that shows light source of the present invention and light source support thereof.
The reference numeral explanation:
10,10 '～backlight assembly
11～framework
11a～downside
11b～upper side
12～light diffusing sheet
13～optical thin film layer
14～optical thin film layer
15～fluorescent tube
16～fluorescent tube support sector
17,18～heat radiation paster
30～liquid crystal panel
30a～display surface
30b～non-display surface
40,40 '～backlight assembly
41a, 41b～optical thin film layer
42～light diffusing sheet
43,43 '～reflecting plate
44,44 '～framework
45～light source
451～fluorescent tube
46～light source support sector
461,461 '～air hole runner
462,462 '～air hole
465～the first support portions
466～the second support portions
48～perforation
49～perforation
50～perforation
100,100 '～LCD
Embodiment
Fig. 3 A-1 and 3A-2 show the decomposition and the combination stereogram of LCD 100 of the present invention respectively.LCD 100 comprises a liquid crystal panel 30 and a direct type backlight assembly 40.Liquid crystal panel 30 has a display surface 30a and a non-display surface 30b.Backlight assembly 40 is arranged at the below of the non-display surface 30b of liquid crystal panel 30.Backlight assembly 40 is made up of a plurality of optical thin film layer 41a, 41b, a light diffusing sheet 42, a light source 45, a light source support sector 46, a reflecting plate 43 and a framework 44.Optical thin film layer 41a, 41b and light diffusing sheet 42 are arranged at light source 45 tops.Light source support sector 46 and light source 45 butts, in order to supporting light sources 45, and light source support sector 46 has an air hole runner 461.Reflecting plate 43 is arranged at the below of light source 45, reflects backlight assembly 40 in order to the light with light source 45, and reflecting plate 43 and light source 45 be arranged at framework 44 in, shown in Fig. 3 A-2.In addition, framework 44 has a perforation 48, is communicated with air hole runner 461, makes hot gas that light source 45 produces along air hole runner 461, through perforation 48 and outside loss.
Fig. 3 B-1 and 3B-2 show exploded perspective view and the combination stereogram of another embodiment of LCD 100 ' of the present invention respectively, and what they were different is in the planform of the reflecting plate 43 ' and the framework 44 ' of backlight assembly 40.Light source support sector 46 has an air hole runner 461.And reflecting plate 43 ' is positioned between framework 44 ' and the light source 45, reflects backlight assembly 40 in order to the light with light source 45.Reflecting plate 43 ' has a perforation 50, and perforation 50 is arranged at the side of reflecting plate 43 ', and bores a hole 50 corresponding to 461 settings of air hole runner.Framework 44 ' also has a perforation 49, and it is 49 50 set corresponding to perforation to bore a hole.Thereby by above-mentioned radiator structure, the hot gas that will make light source 45 be produced sees through perforation 50 at last by perforation 49 outside loss along air hole runner 461.
Fig. 4 is the enlarged diagram that shows light source 45 of the present invention and light source support 46 thereof.Light source support sector 46 comprises one first support portion 465 and one second support portion 466.First support portion 465 and second support portion 466 are arranged at the two ends of each light source 45 with relative mode.Air hole runner 461 and air hole 462 are arranged on first support portion 465 of light source support sector 46, and air hole runner 461 ' and air hole 462 ' are arranged on second support portion 465 of light source support sector 46.Each air hole 462 is connected with air hole runner 461, relatively each air hole 462 ' also is connected with air hole runner 461 ', thereby makes that hot gas that light source 45 produced will be along air hole 462 and 462 ' and air hole runner 461 and 461 ' outside loss.
Air hole runner 461 or 461 ' the optional circle certainly of cross sectional shape, ellipse, polygon or group's one or its combination wherein that irregular shape was formed.
Refer again to Fig. 3 A-2 and 3B-2, relative position design by air hole of the present invention and air hole runner, make air enter air hole and air hole runner by framework 44,44 ' perforation 48,49 (shown in Fig. 3 B-1), and then enter smoothly in the light source 45, to reach the purpose that strengthens thermal convection, so the design of air hole runner can increase the area that produces thermal convection with air, avoid Yin Gaowen to cause the backlight assembly luminescence efficiency to descend, and improve the integral heat sink benefit.Compare with known design, shown in Fig. 1 and 2, known backlight assembly 10,10 ' does not have the design of air hole and air hole runner, so radiating efficiency is obviously not enough.
As mentioned above,, increase thermal convection mechanism, fluorescent tube is operated under the working temperature of the best, and improved the briliancy performance of backlight assembly because the present invention can effectively utilize the cooperation of air hole and air hole runner.
Though the present invention discloses as above with 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 various changes and retouching, thus protection scope of the present invention after looking with claims scope was defined is as the criterion.
Claims (22)
1. backlight assembly comprises:
One light source; And
One light source support sector, this light source support sector and this light source butt in order to support this light source, comprise an air hole runner and a plurality of air hole, and at least one air hole is connected with this air hole runner, makes hot gas that this light source produces along these air holes and the outside loss of this air hole runner.
2. backlight assembly as claimed in claim 1 is characterized in that: this light source comprises a plurality of fluorescent tubes, and these fluorescent tubes are parallel to each other.
3. backlight assembly as claimed in claim 2 is characterized in that: the bearing of trend of this air hole runner is vertical haply with the bearing of trend of these fluorescent tubes.
4. backlight assembly as claimed in claim 3 is characterized in that: have at least one air hole between the two adjacent fluorescent tubes.
5. backlight assembly as claimed in claim 4 is characterized in that: these air holes are vertical haply with this air hole runner.
6. backlight assembly as claimed in claim 5 is characterized in that: also comprise a framework, supporting this light source support sector, this framework corresponding to this air hole runner locate have one first perforation.
7. backlight assembly as claimed in claim 5, it is characterized in that: comprise that also one is arranged at the reflecting plate of this light source below, and one along the vertically extending projection of this reflecting plate side, these light source support sector two ends of this projection and butt, and this projection corresponding to this air hole runner locate have one second the perforation.
8. backlight assembly as claimed in claim 7 is characterized in that: comprise that also one is arranged at the framework of this reflecting plate below, and this framework corresponding to this second perforation locate have one the 3rd perforation.
9. as any described backlight assembly in the claim 1～8, it is characterized in that: these fluorescent tubes are cold cathode fluorescent tube.
10. backlight assembly as claimed in claim 9 is characterized in that: these fluorescent tubes are linear fluorescent tube or U-shaped fluorescent tube.
11. backlight assembly as claimed in claim 1 is characterized in that: the cross sectional shape of this air hole runner is to be selected from circle, ellipse, polygon or group's one or its combination wherein that irregular shape was formed.
12. a LCD device comprises:
One liquid crystal panel, this liquid crystal panel have a display surface and a non-display surface; And
One is arranged at the backlight assembly of below of this non-display surface of this liquid crystal panel, and this backlight assembly comprises:
One light source; And
One light source support sector, this light source support sector and this light source butt in order to support this light source, comprise an air hole runner and a plurality of air hole, and at least one air hole is connected with this air hole runner, makes hot gas that this light source produces along these air holes and the outside loss of this air hole runner.
13. LCD device as claimed in claim 12 is characterized in that: this light source comprises a plurality of fluorescent tubes, and these fluorescent tubes are parallel to each other.
14. LCD device as claimed in claim 13 is characterized in that: the bearing of trend of this air hole runner is vertical haply with the bearing of trend of these fluorescent tubes.
15. LCD device as claimed in claim 14 is characterized in that: have at least one air hole between the two adjacent fluorescent tubes.
16. LCD device as claimed in claim 15 is characterized in that: these air holes are vertical haply with this air hole runner.
17. LCD device as claimed in claim 16 is characterized in that: also comprise a framework, supporting this light source support sector, this framework corresponding to this air hole runner locate have one first perforation.
18. LCD device as claimed in claim 16, it is characterized in that: comprise that also one is arranged at the reflecting plate of this light source below, and one along the vertically extending projection of this reflecting plate side, these light source support sector two ends of this projection and butt, and this projection corresponding to this air hole runner locate have one second the perforation.
19. LCD device as claimed in claim 18 is characterized in that: also comprise a framework, be arranged at this reflecting plate below, and this framework corresponding to this second perforation locate have one the 3rd perforation.
20. as any described LCD device in the claim 12～19, it is characterized in that: these fluorescent tubes are cold cathode fluorescent tube.
21. LCD device as claimed in claim 20 is characterized in that: these fluorescent tubes are linear fluorescent tube or U-shaped fluorescent tube.
22. LCD device as claimed in claim 12 is characterized in that: the cross sectional shape of this air hole runner is to be selected from circle, ellipse, polygon or group's one or its combination wherein that irregular shape was formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100058342A CN100353237C (en) | 2005-01-27 | 2005-01-27 | Liquid crystal display device and backlight assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100058342A CN100353237C (en) | 2005-01-27 | 2005-01-27 | Liquid crystal display device and backlight assembly thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1632665A true CN1632665A (en) | 2005-06-29 |
| CN100353237C CN100353237C (en) | 2007-12-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100058342A Expired - Fee Related CN100353237C (en) | 2005-01-27 | 2005-01-27 | Liquid crystal display device and backlight assembly thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100353237C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717706A (en) * | 2016-04-28 | 2016-06-29 | 青岛海信电器股份有限公司 | Double-sided backlight source and double-sided display device |
| CN113219719A (en) * | 2021-04-23 | 2021-08-06 | 成都中电熊猫显示科技有限公司 | Backlight module, liquid crystal module and display device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100793727B1 (en) * | 2001-05-18 | 2008-01-10 | 삼성전자주식회사 | Liquid crystal display device |
| JP4051941B2 (en) * | 2002-01-29 | 2008-02-27 | セイコーエプソン株式会社 | Liquid crystal display |
| TW542883B (en) * | 2002-08-16 | 2003-07-21 | Au Optronics Corp | Backlight unit for flat panel liquid crystal display |
| KR100774579B1 (en) * | 2002-10-25 | 2007-11-09 | 삼성전자주식회사 | Back light assembly and liquid crystal display having the same |
| CN2641676Y (en) * | 2003-08-13 | 2004-09-15 | 矽连科技股份有限公司 | Radiator for LCD |
| CN100334491C (en) * | 2004-01-15 | 2007-08-29 | 友达光电股份有限公司 | Liquid crystal display and backlight module thereof |
-
2005
- 2005-01-27 CN CNB2005100058342A patent/CN100353237C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717706A (en) * | 2016-04-28 | 2016-06-29 | 青岛海信电器股份有限公司 | Double-sided backlight source and double-sided display device |
| CN113219719A (en) * | 2021-04-23 | 2021-08-06 | 成都中电熊猫显示科技有限公司 | Backlight module, liquid crystal module and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100353237C (en) | 2007-12-05 |
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Granted publication date: 20071205 Termination date: 20210127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |