CN1702823A - External electrode fluorescent lamp tube with high light optical effect low operating voltage and process for making same - Google Patents
External electrode fluorescent lamp tube with high light optical effect low operating voltage and process for making same Download PDFInfo
- Publication number
- CN1702823A CN1702823A CN 200510040596 CN200510040596A CN1702823A CN 1702823 A CN1702823 A CN 1702823A CN 200510040596 CN200510040596 CN 200510040596 CN 200510040596 A CN200510040596 A CN 200510040596A CN 1702823 A CN1702823 A CN 1702823A
- Authority
- CN
- China
- Prior art keywords
- glass shell
- tube glass
- tube
- secondary electron
- dielectric layer
- 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
Images
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Discharge Lamp (AREA)
Abstract
This invention relates to working voltage outer electrode fluorescence light tube, which comprises the following parts: light shell with two sealed ends; fluorescence powder layer located on the inner wall of light shell; outer electrode located on the outer surface of the light tube; discharging gas filled in light tube shell; high second electron eradiation materials medium layer located on both ends of light tube shell. The process method comprises the following steps: taking the tube shell and two covers of both ends; processing high second electron eradiation materials medium layer on the other opening terminal inner surface; sealing the two ends of covers and light tubes; processing the outer electrode on both ends of the light tube shell.
Description
Technical field
The present invention relates to a kind of external electrode fluorescent lamp tube with high light optical effect low operating voltage and preparation technology thereof.
Background technology
Cold-cathode fluorescence lamp is a kind of new type light source that does not need cathode filament heats, caliber can be done very thin (generally below 10mm, as 1.8mm), and cold-cathode fluorescence lamp has two classes, promptly interior electrode fluorescence lamp (CCFL) and external-electrode fluorescent lamp (EEFL).The needed electronics of gas discharge, ion are made of the Secondary Emission of electromerism and electrode in the cold-cathode fluorescence lamp, and these are different by the gas discharge of the thermionic emission formation of hot cathode with hot-cathode fluorescent lamp (HCFL).Interior electrode fluorescence lamp is owing to the luminous efficiency height, and external diameter is especially little, does not need heating simultaneously, and the life-span is long, has therefore obtained extensive use in the especially little place of light source volume requirement, as LCD backlight source, household electrical appliance (refrigerator) illumination etc.But interior electrode fluorescence lamp also has the some shortcomings part, and higher (150～500v), luminous efficiency is lower by about 30% than hot-cathode fluorescent lamp as discharge voltage.In recent years, along with the development of LCD and LCD TV, internally the demand of electrode fluorescence lamp is increasing.The large scale liquid crystal TV as 34 inches LCD TV, owing to require the brightness height, reach the luminance level of present picture tube TV, and every television set needs about 100 fluorescent tube just can meet the demands.Therefore to have be on backlight to the cost of LCD TV greatly.Reduce the cost of liquid crystal backlight, just need to improve the luminous efficiency of cold-cathode fluorescence lamp, reduce the fluorescent tube use amount or reduce the cost of every fluorescent tube.Because every fluorescent tube need be equipped with inverter power supply and keep the fluorescent tube operate as normal, and the cost of inverter power supply and its operating voltage have much relations, therefore reduce the cost that lamp works voltage can effectively reduce inverter.External-electrode fluorescent lamp has higher brightness and longer life-span with respect to interior electrode fluorescence lamp, can adopt the shared inverter of many fluorescent tubes (as 20 fluorescent tubes) simultaneously, reduces the cost of backlight.
Existing external-electrode fluorescent lamp (EEFL), it has bigger diameter, and the gas discharge required voltage is being applied to LCD TV as backlight now also than higher, can expect that the application of these cold-cathode fluorescence lamps will develop rapidly.The problem that faces also is to reduce operating voltage and improve luminous efficiency.
Summary of the invention
The invention provides the external electrode fluorescent lamp tube with high light optical effect low operating voltage and the preparation technology thereof of a kind of high-luminous-efficiency, low-work voltage.
Fluorescent lamp of the present invention adopts following technical scheme:
A kind of liquid crystal backlight or illuminating external electrode fluorescent lamp tube with high light optical effect low operating voltage of can be used as, the tube glass shell that comprises closed at both ends, on the inwall of tube glass shell, be provided with phosphor powder layer, on the outer surface of the two ends of tube glass shell, be provided with outer electrode, in tube glass shell, be filled with discharge gas, on the inner surface of the two ends of tube glass shell, be provided with high secondary electron emission material dielectric layer.Above-mentioned fluorescent lamp technical scheme also is fit to bending, the fluorescent lamp of spirality or other shape.
The preparation technology of fluorescent lamp of the present invention adopts following technical scheme:
A kind of preparation technology who is used to make above-mentioned external electrode fluorescent lamp tube with high light optical effect low operating voltage: the lid of the tube glass shell of the both ends open of the cleaning-drying of learning from else's experience and 2 energy and the sealing-in of tube glass shell opening, on a lid blast pipe is set therein, establish high secondary electron emission material dielectric layer at two cover inner surfaces, the high secondary electron emission material dielectric layer of preparation on the inner surface of an openend of tube glass shell, on the inwall of tube glass shell, phosphor powder layer is set again, the high secondary electron emission material dielectric layer of preparation on the inner surface of another openend of tube glass shell, with lid respectively with the two ends sealing-in of tube glass shell, to manage interior gas by the blast pipe on the lid and discharge and charge into discharge gas, excision blast pipe and closed grate hole, last tube glass shell two ends after being closed prepare the metal discharge electrode film as outer electrode.Above-mentioned fluorescent lamp technical scheme also is fit to bending, the fluorescent lamp of spirality or other shape.
Compared with prior art, the present invention has following advantage:
Basic thought of the present invention is to make the dielectric layer with high secondary emissionratio on the inner surface of existing external-electrode fluorescent lamp pipe two ends, utilize the high secondary electron yield of dielectric material, the electron number that raising is carried out ionizing collision in the gas discharge zone, thus luminous efficiency improved.
The two end inner surfaces that the present invention will have an external-electrode fluorescent lamp pipe of blast pipe are made the dielectric layer of high secondary electron yield, then with the inner surface coated fluorescent material of external-electrode fluorescent lamp pipe, again with the fluorescent glass tubes exhaust. after the exhaust, inert gas and mercury discharge gas are charged into fluorescent glass tubes, then with pipe sealing.The coating of electric conducting material making is arranged on the two ends outer surface of fluorescent glass tubes as sparking electrode.On the sparking electrode of two ends, apply the alternating voltage that produces by inverter during work, electronics moves in fluorescent glass tubes under effect of electric field, because the high secondary electron yield of material increases the secondary electron number greatly and manages interior gas molecule ionizing collision constantly takes place on the lamp tube ends inner surface, and make the pipe in gas discharge, because discharge space is enough big, can form the high positive column discharge of luminous efficiency, by discharge excitation mercury emitting ultraviolet light, ultraviolet excitation fluorescent material sends visible light makes it become light source.Thereby reach the raising luminous efficiency, reduce the purpose of operating voltage.
The present invention is by making dielectric layer on two end inner surfaces of cold-cathode fluorescence lamp, for example has high secondary electron yield material (as magnesium oxide, aluminium oxide etc.) dielectric layer, it is low that expectation will make external-electrode fluorescent lamp have operating voltage, the characteristics that luminous efficiency is high.Can effectively reduce the cost of support circuit, and prolonging lamp tube service life.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation that an end afterbody is not covered by the coating fully.
Fig. 3 is the structural representation of external-electrode fluorescent lamp pipe lid.
Fig. 4 is that fluorescent tube is the structural representation of circular ring type.
Fig. 5 is that fluorescent tube is the external structure schematic diagram of spiral type.
Embodiment
A kind of liquid crystal backlight or illuminating external electrode fluorescent lamp tube with high light optical effect low operating voltage of can be used as, the tube glass shell 2 that comprises closed at both ends, on the inwall of tube glass shell 2, be provided with phosphor powder layer 1, on the outer surface of the two ends of tube glass shell 2, be provided with outer electrode 4, in tube glass shell 2, be filled with discharge gas 3, on the inner surface of the two ends of tube glass shell 2, be provided with high secondary electron emission material dielectric layer 5, above-mentioned high secondary electron emission material dielectric layer 5 is a magnesium oxide layer, alumina layer or magnesium aluminate layer, this high secondary electron emission material dielectric layer 5 also can be other high secondary electron emission material, above-mentioned tube glass shell 2 can be straight, bend spirality or other shape.
A kind of preparation technology who is used to make above-mentioned external electrode fluorescent lamp tube with high light optical effect low operating voltage: the lid of the tube glass shell of the both ends open of the cleaning-drying of learning from else's experience and 2 energy and the sealing-in of tube glass shell opening, on a lid blast pipe 6 is set therein, establish high secondary electron emission material dielectric layer at two cover inner surfaces, the high secondary electron emission material dielectric layer 5 of preparation on the inner surface of an openend of tube glass shell, phosphor powder layer 1 is set on the inwall of tube glass shell again, the high secondary electron emission material dielectric layer of preparation on the inner surface of another openend of tube glass shell, with lid respectively with the two ends sealing-in of tube glass shell, to manage interior gas by the blast pipe on the lid 6 and discharge and charge into discharge gas 3, excision blast pipe 6 and closed grate hole, last tube glass shell two ends after being closed prepare the metal discharge electrode film as outer electrode 4, above-mentioned tube glass shell 2 can be straight, bend, spirality or other shape, the fluorescent tube that makes thus is straight, bend, spirality or other shape, in the present embodiment, blast pipe 6 is connected with vacuum system carries out exhaust and inflation; To charge in the tube glass shell as discharge gas by the mist that inert gas and mercury metal are formed; Adopt the method for vacuum coating or plated film, coated, printing, sintering or surface of metal electrode oxidation, magnesium oxide, aluminium oxide, magnesium aluminate or other high secondary electron emission material are placed lid and tube glass shell two ends, realize the preparation of high secondary electron emission material dielectric layer; Present embodiment prepare at the tube glass shell two ends one deck electrically conductive graphite, silver slurry film or or other electric conducting materials as outer electrode; Above-mentioned high secondary electron emission material dielectric layer can join or scrap (bridge) with fluorescent material.
Claims (8)
1, a kind of liquid crystal backlight or illuminating external electrode fluorescent lamp tube with high light optical effect low operating voltage of can be used as, the tube glass shell (2) that comprises closed at both ends, on the inwall of tube glass shell (2), be provided with phosphor powder layer (1), on the two ends outer surface of tube glass shell (2), be provided with outer electrode (4), in tube glass shell (2), be filled with discharge gas (3), it is characterized in that on the two ends inner surface of tube glass shell (2), being provided with high secondary electron emission material dielectric layer (5).
2, external electrode fluorescent lamp tube with high light optical effect low operating voltage according to claim 1 is characterized in that high secondary electron emission material dielectric layer (5) is magnesium oxide layer, alumina layer or magnesium aluminate layer.
3, a kind of preparation technology who is used to make the described external electrode fluorescent lamp tube with high light optical effect low operating voltage of claim 1, it is characterized in that: the lid of the tube glass shell of the both ends open of the cleaning-drying of learning from else's experience and 2 energy and the sealing-in of tube glass shell opening, on a lid blast pipe (6) is set therein, establish high secondary electron emission material dielectric layer at two cover inner surfaces, preparation high secondary electron emission material dielectric layer (5) on the inner surface of an openend of tube glass shell, phosphor powder layer (1) is set on the inwall of tube glass shell again, the high secondary electron emission material dielectric layer of preparation on the inner surface of another openend of tube glass shell, with lid respectively with the two ends sealing-in of tube glass shell, to manage interior gas by the blast pipe on the lid (6) and discharge and charge into discharge gas (3), excision blast pipe (6) and closed grate hole, last tube glass shell two ends after being closed prepare the metal discharge electrode film as outer electrode (4).
4, preparation technology according to claim 3 is characterized in that blast pipe (6) is connected with vacuum system and carries out exhaust and inflation.
5, preparation technology according to claim 3 is characterized in that the mist that will be made up of inert gas and mercury metal charges in the tube glass shell as discharge gas.
6, preparation technology according to claim 3, it is characterized in that adopting the method for vacuum coating or plated film, coated, printing, sintering or surface of metal electrode oxidation, magnesium oxide, aluminium oxide or magnesium aluminate are placed lid and tube glass shell two ends, realize the preparation of high secondary electron emission material dielectric layer.
7,, it is characterized in that high secondary electron emission material dielectric layer and fluorescent material joins or scrap (bridge) according to the described preparation technology of arbitrary claim in the claim 3 to 6.
8, preparation technology according to claim 3 is characterized in that preparing one deck electrically conductive graphite or silver slurry film as outer electrode at the tube glass shell two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100405969A CN100361270C (en) | 2005-06-17 | 2005-06-17 | External electrode fluorescent lamp tube with high light optical effect low operating voltage and process for making same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100405969A CN100361270C (en) | 2005-06-17 | 2005-06-17 | External electrode fluorescent lamp tube with high light optical effect low operating voltage and process for making same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1702823A true CN1702823A (en) | 2005-11-30 |
| CN100361270C CN100361270C (en) | 2008-01-09 |
Family
ID=35632468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100405969A Expired - Fee Related CN100361270C (en) | 2005-06-17 | 2005-06-17 | External electrode fluorescent lamp tube with high light optical effect low operating voltage and process for making same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100361270C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100446172C (en) * | 2006-03-21 | 2008-12-24 | 东南大学 | Flat plate type external extrode fluorescence lamp and its producing method |
| CN100461332C (en) * | 2006-01-10 | 2009-02-11 | 东南大学 | High photosynthetic efficiency external electrode porcelain tube cathode fluorescent lamp and its making method |
| CN1838379B (en) * | 2006-01-27 | 2010-12-08 | 友达光电股份有限公司 | Cold-cathode lamp tube with outer electrode and back light module applying it |
| CN102422378A (en) * | 2009-05-15 | 2012-04-18 | 赵正烈 | Dual external electrode fluorescent lamp and manufacturing method thereof |
| CN105097383A (en) * | 2009-05-15 | 2015-11-25 | 赵正烈 | Fabrication method of biform external electrode fluorescent tube |
| CN105470070A (en) * | 2015-12-11 | 2016-04-06 | 四川九洲电器集团有限责任公司 | Manufacturing method for external electrode fluorescent lamp |
| CN107658206A (en) * | 2017-08-15 | 2018-02-02 | 云南靖创液态金属热控技术研发有限公司 | Liquid metal lamp and its application method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6501070B1 (en) * | 1998-07-13 | 2002-12-31 | Newport Corporation | Pod load interface equipment adapted for implementation in a fims system |
| DE10140356A1 (en) * | 2001-08-17 | 2003-02-27 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Tubular discharge lamp with ignition aid |
| JP2004119241A (en) * | 2002-09-27 | 2004-04-15 | Toshiba Corp | Discharge lamp and its manufacturing method |
| CN1688013A (en) * | 2005-04-30 | 2005-10-26 | 南京杰瑞特光源有限公司 | External electrode fluorescent lamp with transmitting film coated internal wall |
-
2005
- 2005-06-17 CN CNB2005100405969A patent/CN100361270C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100461332C (en) * | 2006-01-10 | 2009-02-11 | 东南大学 | High photosynthetic efficiency external electrode porcelain tube cathode fluorescent lamp and its making method |
| CN1838379B (en) * | 2006-01-27 | 2010-12-08 | 友达光电股份有限公司 | Cold-cathode lamp tube with outer electrode and back light module applying it |
| CN100446172C (en) * | 2006-03-21 | 2008-12-24 | 东南大学 | Flat plate type external extrode fluorescence lamp and its producing method |
| CN102422378A (en) * | 2009-05-15 | 2012-04-18 | 赵正烈 | Dual external electrode fluorescent lamp and manufacturing method thereof |
| CN105097383A (en) * | 2009-05-15 | 2015-11-25 | 赵正烈 | Fabrication method of biform external electrode fluorescent tube |
| CN105470070A (en) * | 2015-12-11 | 2016-04-06 | 四川九洲电器集团有限责任公司 | Manufacturing method for external electrode fluorescent lamp |
| CN105470070B (en) * | 2015-12-11 | 2018-05-18 | 四川九洲电器集团有限责任公司 | A kind of preparation method of external external electrode fluorescent lamp |
| CN107658206A (en) * | 2017-08-15 | 2018-02-02 | 云南靖创液态金属热控技术研发有限公司 | Liquid metal lamp and its application method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100361270C (en) | 2008-01-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100361270C (en) | External electrode fluorescent lamp tube with high light optical effect low operating voltage and process for making same | |
| HU224147B1 (en) | Flat fluorescent light for background lighting and liquid crystal display device fitted with said flat fluorescent light | |
| CN1089541C (en) | Low-voltage mercury vapour discharge lamp, illuminating apparatus and display device | |
| CN1286801A (en) | Low-pressure mercury vapor discharge lamp and illuminator | |
| CN101030688A (en) | Connector for discharging tube, discharging tube with connector and surface light source device | |
| CN1794412B (en) | Short arc type discharge lamp | |
| CN100446172C (en) | Flat plate type external extrode fluorescence lamp and its producing method | |
| TW200405383A (en) | Low-voltage discharge lamp and backlight device using the same | |
| CN100461332C (en) | High photosynthetic efficiency external electrode porcelain tube cathode fluorescent lamp and its making method | |
| TWI304597B (en) | External electrode fluorescent lamp | |
| CN1508837A (en) | Short-arc discharging lamp | |
| CN2879420Y (en) | High optical efficiency low working voltage outer electrode fluorescent lamp | |
| CN100355008C (en) | High optical efficiency low working voltage cold cathode fluorescent lamp | |
| CN1539157A (en) | Low-pressure gas discharge lamps | |
| CN1630021A (en) | A metal halide lamp | |
| CN1542901A (en) | Short arc type ultra high pressure discharge lamp | |
| CN100446170C (en) | Cathode for ceramic cold cathode fluorescent lamp | |
| CN1710691A (en) | High-light-efficiency low-working-voltage gas discharging lamp-tube and mfg technology thereof | |
| KR20070009425A (en) | Discharge lamp having an external electrode and manufacturing method the same, back light unit having the discharge lamp and liquid crystal display | |
| CN100442431C (en) | Ceramic auxiliary cathode hot cathode fluorescence lamp | |
| CN1152412C (en) | Cold-cathode gas discharge device without metallic electrode | |
| CN1107335C (en) | Compact fluorescent lamp with cold cathode | |
| CN100454478C (en) | Auxiliary ceramic cathode cold cathode fluorescence lamp | |
| CN201522987U (en) | Composite cathode fluorescent lamp | |
| CN101533751A (en) | Composite cathode fluorescent lamp |
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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080109 Termination date: 20100617 |