CN1472469B - Lighting device and lamp tube thereof - Google Patents
Lighting device and lamp tube thereof Download PDFInfo
- Publication number
- CN1472469B CN1472469B CN 02127437 CN02127437A CN1472469B CN 1472469 B CN1472469 B CN 1472469B CN 02127437 CN02127437 CN 02127437 CN 02127437 A CN02127437 A CN 02127437A CN 1472469 B CN1472469 B CN 1472469B
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- Prior art keywords
- fluorescent tube
- lighting device
- support member
- shape portion
- order
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 9
- 239000004973 liquid crystal related substance Substances 0.000 claims description 7
- 230000011514 reflex Effects 0.000 claims 1
- 230000035939 shock Effects 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 229920006351 engineering plastic Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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Images
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- Planar Illumination Modules (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
The invention relates to a lighting device, mainly include a modulator tube locates in a body, the modulator tube has both ends used for electric connection to a power and a crooked part locates between the both ends, the body has a support piece to support the modulator tube with two hook-shaped portions, thus help to fix the modulator tube, the invention also provides a modulator tube, characterized by that to have a buffer piece rigid coupling on the crooked part, in order to weaken or absorb the shock that the modulator tube is collided, the support piece can have a gap between two hook-shaped portions, and the buffer piece of the modulator tube fits the gap between two hook-shaped portions closely, thus fix the modulator tube and absorb the shock effectively.
Description
Technical field
The present invention relates to the fluorescent tube of a kind of lighting device and use thereof, particularly a kind of backlight liquid crystal display device that is used for.
Background technology
Generally speaking, LCD comprises a liquid crystal panel (it has two substrates and a liquid crystal layer is located in therebetween) and a lighting device, and for example a back lighting device is located at after this liquid crystal panel.This back lighting device is configured to the light from light source to be evenly distributed in the surface of this liquid crystal panel.Several back lighting devices are arranged at present, for example full run-down type and edge-lit type.
Staight downward type backlight device generally comprises a U type fluorescent tube to be located in the shell, and this U type fluorescent tube has both ends in order to be electrically connected to a power supply.Because the two-end part of U type fluorescent tube is in the same side, so Staight downward type backlight device generally is provided with a fixed mechanism, and for example the fixture made of a rubber is fixed on the shell in order to the bend with this U type fluorescent tube.It should be noted that this existing fixture generally is designed to directly coat the part of this U type fluorescent tube bend, in order to strengthen fixing this fluorescent tube.
Because the fixture that this rubber is made directly is coated on this U type fluorescent tube, so this fixture will speed up the heat radiation of this U type fluorescent tube bend.Thereby when the LCD that uses aforementioned back lighting device is placed at the environment of low temperature for example the long-time operation test is carried out in 0 ℃ of chamber (chamber), the temperature of this U type fluorescent tube bend can be also lower more than 10 ℃ than these other parts of U type fluorescent tube, thereby cause the phenomenon of low temperature pink (pink).
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art and defective, a kind of lighting device is provided, it is characterized in that utilizing the fixed mechanism of a novelty to help to fix this fluorescent tube, in order to overcome or to reduce a difficult problem that meets with in the above-mentioned prior art at least.
Lighting device according to an embodiment of the invention, it mainly comprises a fluorescent tube is located in the main body, and this fluorescent tube has both ends in order to be electrically connected to a power supply and a crooked position between these both ends.This fluorescent tube is characterised in that to have a bolster (buffer part) (for example an O type ring or C type ring) is fixed on this bend, in order to weaken or to absorb the vibrations that this fluorescent tube is collided.This main body is provided with a support member in order to engaging with the bolster of this fluorescent tube, thereby helps to fix this fluorescent tube.Detailed speech, this support member have two and collude shape portion and a breach and be positioned at this and two collude between shape portion, and this two colludes shape portion in order to supporting this fluorescent tube, and the bolster of this fluorescent tube is matched with this two breach that colludes between shape portion, thereby effectively fix this fluorescent tube.This main body generally comprises a shell, and a reflecting plate is located between this fluorescent tube and this shell and a diffuser plate.Detailed speech, the shell of this main body comprises a pedestal and a housing is located on this pedestal.This reflecting plate is located between this fluorescent tube and this package header.This diffuser plate is sealed in the case top of this shell.The both ends of this fluorescent tube are along a side setting of this package header.
Lighting device according to another embodiment of the present invention is characterized in that this main body is provided with one first support member and has two and collude shape portion in order to supporting one first fluorescent tube, thereby helps to fix this first fluorescent tube.Preferably, this lighting device is provided with one second fluorescent tube, and one second support member has two and colludes shape portion in order to supporting this second fluorescent tube, and one the 3rd support member is located on this main body and between this first fluorescent tube and second fluorescent tube.The 3rd support member has two and colludes shape portion in order to help to support this first fluorescent tube and second fluorescent tube.
According to fixed mechanism of the present invention (that is support member), it is characterized in that utilizing two to collude shape portion support luminous tube, therefore can effectively reduce heat and scatter and disappear by fluorescent tube and fixed mechanism contact-making surface.Thereby work as the environment that the LCD that uses back lighting device of the present invention is placed at low temperature, when for example the long-time operation test was carried out in 0 ℃ of chamber (chamber), the phenomenon of low temperature pink (pink) can't take place.
Description of drawings
Fig. 1 is the three-dimensional exploded view of lighting device according to an embodiment of the invention;
Fig. 2 is the fluorescent tube of Fig. 1 lighting device and in order to the amplification stereogram of the support member of fixed lamp tube;
Fig. 2 a is the cut-away view along the 2a-2a line of Fig. 2;
Fig. 2 b is the cut-away view along the 2b-2b line of Fig. 2;
Fig. 3 is the three-dimensional exploded view of lighting device according to another embodiment of the present invention;
Fig. 4 a is the part amplification stereogram of the fluorescent tube of Fig. 3 lighting device;
Fig. 4 b is the cut-away view along the 4b-4b line of Fig. 4 a;
Fig. 4 c is the part amplification stereogram of another fluorescent tube of Fig. 3 lighting device;
Fig. 4 d is the cut-away view along the 4d-4d line of Fig. 4 c;
Fig. 5 a is the part amplification stereogram of the support member of Fig. 3 lighting device;
Fig. 5 b is engaged in the part side view of the support member of Fig. 5 a for the fluorescent tube of Fig. 4 a;
Fig. 5 c is engaged in the part side view of the support member of Fig. 5 a for the fluorescent tube of Fig. 4 c.
Symbol description among the figure:
100 lighting devices
110 fluorescent tubes, 112 ends
114 bends, 120 pedestals
130 housings, 140 reflecting plates
142 diffuser plates, 150 support members
160 support members, 164 clamping parts
162 collude shape portion
The 220c clamping part
200 lighting devices
210 fluorescent tube 210a O type rings
210b C type ring 212 ends
214 bends, 220 support members
220a colludes the 220b of shape portion breach
The specific embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with drawings and Examples.
Fig. 1 and Fig. 3 are in order to the lighting device of explanation according to different embodiments of the invention, and similar elements is all given identical reference drawing number.These lighting devices all have a main body and comprise a shell (comprising a pedestal 120 and a housing 130), a reflecting plate 140 and a diffuser plate 142.This diffuser plate 142 is sealed in housing 130 tops of this shell.
Figure 1 shows that lighting device 100 according to an embodiment of the invention, it mainly comprises three fluorescent tubes 110 and is located in this main body.This fluorescent tube 110 has both ends 112 in order to be electrically connected to a power supply and a bend 114 between these both ends 112.The both ends 112 of this fluorescent tube 110 are fixed on the pedestal 120 of this shell.In the present embodiment, this lighting device 100 is provided with several support members 150,160, and it respectively has two and colludes shape portion 162 (referring to Fig. 2 a and Fig. 2 b) in order to support luminous tube 110, thereby helps to fix this fluorescent tube 110.Referring to Fig. 2, this support member 150 is located within this fluorescent tube 110, and adjacent support member 150 forms a line.This support member 160 is located between the two adjacent fluorescent tubes 110, and adjacent support member 160 also forms a line.This support member 150 be preferably be arranged on apart from fluorescent tube 110 bends 114 about 8 centimetres to about 9 centimetres position.This support member 160 be preferably be arranged on apart from fluorescent tube 110 bends 114 about 9 centimetres to about 10 centimetres position.This support member 150,160 is preferably the certain distance that staggers each other (for example 1 centimetre) thereby more effectively fixes this fluorescent tube 110.This support member 150,160 can utilize clamping part 164 (referring to Fig. 2 a and Fig. 2 b) to be arranged in this pedestal 120 and reflecting plate 140.Be understandable that this reflecting plate 140 is located between this fluorescent tube 110 and this package header 140.Therefore, when fluorescent tube 110 was lighted, the light that directly enters diffuser plate 142 will reflect the light that enters diffuser plate 142 with the plate 140 that is reflected to be mixed, thereby formed the surface light emitting (surface luminance) of this diffuser plate 142.
Figure 3 shows that lighting device 200 according to an embodiment of the invention.Except fluorescent tube 210 and support member 220, this display 200 roughly display 100 with shown in Figure 1 is identical.This fluorescent tube 210 has both ends 212 in order to be electrically connected to a power supply and a bend 214 between these both ends 212.This fluorescent tube 210 is characterised in that to have a bolster (buffer part) (for example an O type ring 210a or C type ring 210b) is fixed on this bend 214, in order to weaken or to absorb the vibrations that this fluorescent tube is collided.This support member 220 engages in order to the bolster with this fluorescent tube 210, thereby helps to fix this fluorescent tube, and by bolster the contact area of fluorescent tube and support member is dwindled, and it is lost by the contact-making surface of fluorescent tube and support member therefore can effectively to reduce heat.Referring to Fig. 5, this support member 220 has two and colludes the 220a of shape portion and a breach 220b and be positioned at this and two collude between the 220a of shape portion.Referring to Fig. 5 a, two of this support member 220 colludes the 220a of shape portion in order to supporting this fluorescent tube 210, and the bolster of this fluorescent tube, that is O type ring 210a (referring to Fig. 5 b) or C type ring 210b (referring to Fig. 5 c), be matched with this and two collude the breach 220b of 220a between shape portion, thereby effectively fix this fluorescent tube 210.Referring to Fig. 3 and Fig. 5 a, this support member 220 can utilize clamping part 220c to be arranged in this pedestal 120.
Fluorescent tube of the present invention can be a cold cathode fluorescent lamp (cold cathode fluorescentlamp (CCFL)).Though the fluorescent tube 110,210 shown in the figure of the present invention takes the shape of the letter U, yet fluorescent tube of the present invention can be a different shape, as long as be positioned at fluorescent tube the same side in order to the end that is electrically connected to power supply.That can expect is shaped as U, V, W, two V, three U, because it all is positioned at fluorescent tube the same side in order to the end that is electrically connected to power supply.
Can be designed for the backlight liquid crystal display device according to lighting device of the present invention.According to fixed mechanism of the present invention (for example support member 150,160,220), it is characterized in that utilizing two to collude shape portion support luminous tube.Directly be coated on the fluorescent tube with respect to existing fixture, fixed mechanism of the present invention can effectively reduce heat and be scattered and disappeared by fluorescent tube and fixed mechanism contact-making surface.Thereby work as the environment that the LCD that uses back lighting device of the present invention is placed at low temperature, when for example the long-time operation test is carried out in 0 ℃ of chamber (chamber), can't observe the phenomenon of low temperature pink (pink).In addition, fixed mechanism of the present invention be preferably utilize plastic cement for example engineering plastic (engineering plastics) or resin (resin polymer), for example the low materials of the coefficient of heat conduction such as poly-carbon resin (PC) or ABS resin are made, and are lost by fluorescent tube and fixed mechanism contact-making surface in order to more effective minimizings heat.
Though the present invention discloses with previous embodiment; right its is not in order to limiting the present invention, anyly is familiar with this operator, without departing from the spirit and scope of the present invention; when can doing various changes and modification, so protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (6)
1. a lighting device is characterized in that, comprises:
One fluorescent tube, described fluorescent tube have both ends in order to be electrically connected to a power supply and a crooked position between these both ends, and this fluorescent tube comprises a bolster and is fixed on this bend; And
One main body, described main body is provided with a support member in order to engage with the bolster of this fluorescent tube, thereby help to fix this fluorescent tube, this support member has two and colludes a shape portion and a breach, described breach is positioned at this and two colludes between shape portion, this two colludes shape portion in order to supporting this fluorescent tube, and the bolster of this fluorescent tube is matched with this two breach that colludes between shape portion.
2. lighting device according to claim 1 is characterized in that, this bolster is an O type ring.
3. lighting device according to claim 1 is characterized in that, this bolster is a C type ring.
4. lighting device according to claim 1 is characterized in that, this lighting device is one to be used for the backlight liquid crystal display device.
5. lighting device according to claim 1 is characterized in that, this main body comprises:
One shell;
One reflecting plate, described reflecting plate are located between this fluorescent tube and this shell; And
One diffuser plate,
Wherein this reflecting plate will reflex to this diffuser plate from the light of fluorescent tube.
6. lighting device according to claim 1 is characterized in that, this main body comprises:
One shell, described shell comprise a pedestal and a housing, and described housing is located on this pedestal;
One reflecting plate, described reflecting plate are located between this fluorescent tube and this package header; And
One diffuser plate, described diffuser plate is sealed in the case top of this shell,
Wherein the both ends of this fluorescent tube are along a side setting of this pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02127437 CN1472469B (en) | 2002-08-01 | 2002-08-01 | Lighting device and lamp tube thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02127437 CN1472469B (en) | 2002-08-01 | 2002-08-01 | Lighting device and lamp tube thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1472469A CN1472469A (en) | 2004-02-04 |
| CN1472469B true CN1472469B (en) | 2010-06-02 |
Family
ID=34143531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02127437 Expired - Fee Related CN1472469B (en) | 2002-08-01 | 2002-08-01 | Lighting device and lamp tube thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1472469B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4318160A (en) * | 1979-11-28 | 1982-03-02 | Westinghouse Electric Corp. | Fluorescent lamp conversion unit |
| US4598343A (en) * | 1984-12-06 | 1986-07-01 | Voltarc Tubes, Inc. | U-lamp leg brace |
| US4748546A (en) * | 1987-02-02 | 1988-05-31 | Allied-Signal Inc. | Fluorescent backlighting unit |
| US5270910A (en) * | 1992-02-20 | 1993-12-14 | Kile Edwin N | Neon light box |
| US5541823A (en) * | 1995-02-16 | 1996-07-30 | Fallon Luminous Products Corp. | Housing assembly for illuminated glass tubing |
| CN1135029A (en) * | 1994-11-10 | 1996-11-06 | 奥斯兰姆施尔凡尼亚公司 | Miniature discharge lamp tube holder |
| US5908179A (en) * | 1997-02-25 | 1999-06-01 | Fimbres; Ralph | Lighted valance |
-
2002
- 2002-08-01 CN CN 02127437 patent/CN1472469B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4318160A (en) * | 1979-11-28 | 1982-03-02 | Westinghouse Electric Corp. | Fluorescent lamp conversion unit |
| US4598343A (en) * | 1984-12-06 | 1986-07-01 | Voltarc Tubes, Inc. | U-lamp leg brace |
| US4748546A (en) * | 1987-02-02 | 1988-05-31 | Allied-Signal Inc. | Fluorescent backlighting unit |
| US5270910A (en) * | 1992-02-20 | 1993-12-14 | Kile Edwin N | Neon light box |
| CN1135029A (en) * | 1994-11-10 | 1996-11-06 | 奥斯兰姆施尔凡尼亚公司 | Miniature discharge lamp tube holder |
| US5541823A (en) * | 1995-02-16 | 1996-07-30 | Fallon Luminous Products Corp. | Housing assembly for illuminated glass tubing |
| US5908179A (en) * | 1997-02-25 | 1999-06-01 | Fimbres; Ralph | Lighted valance |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2001-210126A 2001.08.03 |
| JP特开2001-66589A 2001.03.16 |
| 同上. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1472469A (en) | 2004-02-04 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20170801 |
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| CF01 | Termination of patent right due to non-payment of annual fee |