CN102044400A - Energy-saving cold-cathode fluorescence lamp with long service life - Google Patents
Energy-saving cold-cathode fluorescence lamp with long service life Download PDFInfo
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- CN102044400A CN102044400A CN2009102070718A CN200910207071A CN102044400A CN 102044400 A CN102044400 A CN 102044400A CN 2009102070718 A CN2009102070718 A CN 2009102070718A CN 200910207071 A CN200910207071 A CN 200910207071A CN 102044400 A CN102044400 A CN 102044400A
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- cathode fluorescence
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- fluorescence lamp
- lamp
- pole cup
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Abstract
The invention discloses an energy-saving cold-cathode fluorescence lamp with long service life, which prolongs the service life, further prolonging the whole service life of a liquid crystal panel, and guaranteeing the economic benefit of the user of the liquid crystal panel; and therefore, the energy-saving cold-cathode fluorescence lamp better meets the living demand of people, and greatly enhances the product use experience of the user of the liquid crystal panel, thus having important production practice significance.
Description
Technical field
The present invention relates to the image display technology field, particularly relate to a kind of long-life energy-saving cold-cathode fluorescence lamp.
Background technology
Continuous development along with China's science and technology, domestic electric appliances such as television set, video camera, camera, computer are more and more universal in people's daily life, people often use computer to understand the information of outside and learn, and computer has become people's indispensable part of living.
Along with the quickening of social modernization's process, people's life has also incorporated more new technology.Requirement to properties of product is also more and more higher, at present general liquid crystal panel uses back brightness meeting to descend significantly long-time, make troubles to user's use, especially in Internet bar and monitor use, the operating time is generally normal twice in one day, the long-time use of cause can cause the decline significantly of liquid crystal panel lightness, and this main cause is that the cold-cathode fluorescence lamp brightness reduction that the liquid crystal panel backlight unit has causes.Because sending brightness backlight, reduces by the cold-cathode fluorescence lamp that the liquid crystal panel backlight unit has, thereby cause the decline significantly of liquid crystal panel lightness, make the lost of life of liquid crystal panel, change too fast, finally cause the waste of resource, grievous injury liquid crystal panel user's economic interests.
Therefore, press at present and develop the cold-cathode fluorescence lamp that a kind of liquid crystal panel is used, it has long useful life, can increase substantially the service time of liquid crystal panel, guarantees liquid crystal panel user's economic interests, satisfies the needs of people's life better.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of long-life energy-saving cold-cathode fluorescence lamp, prolonged useful life, and then improved the whole service life of liquid crystal panel, guarantee liquid crystal panel user's economic interests, satisfy the needs of people's life better, strengthen liquid crystal panel user's product use experience greatly, be of great practical significance.
For this reason, the invention provides a kind of long-life energy-saving cold-cathode fluorescence lamp, include glass lamp 3, described glass lamp 3 two ends are respectively arranged with an electrode 1, described glass lamp 3 inwalls scribble fluorescent material 2, and each described electrode 1 head has electrode terminal 10, and the tail end of described electrode 1 has pole cup 11, described pole cup 11 is positioned at inside, described glass lamp 3 two ends, and the inner surface of described pole cup 11 applies the oxide of caesium.
Preferably, the oxide of described caesium is evenly coated in the inner surface of described pole cup 11.
Preferably, the width of described pole cup 11 is 1.45～3.0mm, and length is 6～50mm.
Preferably, the average grain diameter of described fluorescent material 2 is 4.7 microns～5 microns.
Preferably, described fluorescent material 2 is for adopting the three primary colors fluorescent powder of nanometer coating.
Preferably, the operating current of described cold-cathode fluorescence lamp is 4mA～6.8mA.
Preferably, described glass lamp 3 inside are full of the argon neon mixture body are arranged, and the argon gas ratio in the described glass lamp 3 is 5%-20%.
By above technical scheme provided by the invention as seen, compared with prior art, the invention provides a kind of long-life energy-saving cold-cathode fluorescence lamp, prolonged useful life, and then improved the whole service life of liquid crystal panel, and guarantee liquid crystal panel user's economic interests, satisfy the needs of people's life better, strengthen liquid crystal panel user's product use experience greatly, be of great practical significance.
Description of drawings
Fig. 1 is the structural representation of a kind of long-life energy-saving cold-cathode fluorescence lamp provided by the invention.
Embodiment
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with drawings and embodiments.
Fig. 1 is the structural representation of a kind of long-life energy-saving cold-cathode fluorescence lamp provided by the invention.
Referring to Fig. 1, the cold-cathode fluorescence lamp that the present invention adopts includes glass lamp 3, and described glass lamp 3 two ends are respectively arranged with an electrode 1, and described glass lamp 3 inwalls scribble fluorescent material 2;
In the present invention, described glass lamp 3 inside are full of the argon neon mixture body are arranged.Need illustrate, for example in 19 cun existing cold-cathode fluorescence lamp, existing argon gas composition generally is 1%～4%, argon gas ratio in the glass lamp 3 of the present invention can be brought up to 5%-20%, be preferably and bring up to 5%, can stablize the running current of fluorescent tube, thereby prolong the life-span of electrode so that the emitting electrons of electrode is more stable like this.
In the present invention, as shown in Figure 1, each described electrode 1 head has electrode terminal 10, and the tail end of described electrode 1 has pole cup 11, and described pole cup 11 is positioned at inside, described glass lamp 3 two ends; The width of described pole cup 11 can be 1.45～3.0mm, width is preferably 1.6～1.7mm, length can be 6～50mm, for example length is preferably and adopts 6～10mm in 19 cun existing cold-cathode fluorescence lamp, has increased by one times of distance than the length 3～5mm of existing pole cup, so the surface area of pole cup of the present invention 11 is improved, thereby the electron ion of pole cup 11 more anti-glass lamps 3 inside bombardment, effectively suppress the electrode sputter, compression resistance is stronger, has improved electrode life; In addition,, make electronics increase, increased speed, make electronics and mercury Hg atomic excitation produce the light of 253.7nm, the ability of light-emitting phosphor is improved in the quantity of pole cup 11 the insides owing to increased the length of pole cup 11; And compare with traditional electrode, reduced the probability of electrode and cathode fluorescent tube end fluorescent material effect on every side, reduce the melanism that the fluorescent material owing to duplet cathode fluorescent tube end reacts and causes, thereby reduced the aging of fluorescent material, improve the useful life of fluorescent material, further improved the useful life of cold-cathode fluorescence lamp.
In the present invention, the pole cup 11 of described electrode 1 tail end can be the nickel cup, the oxide of the inner surface metallizing caesium of described pole cup 11, make pole cup 11 as emissive material like this, because the inner surface emitting electrons of the oxide active electrode cup 11 of metal caesium is arranged, it is lower to select merit, the electricity that reduces negative electrode falls, make easier the launching of electronics of pole cup 11, thereby can reduce the black dull start-up time of cold-cathode fluorescence lamp, effectively avoided the electrode melanism;
In the present invention, the oxide of metal caesium is evenly coated in the inner surface of described pole cup 11, owing to send electronics in the pole cup, oxide (for example can be cesium oxide) by this metal caesium of even coating, can improve the effective surface area of pole cup internal emission electronics effectively, make that electrons excited quantity increases in the pole cup, cause more electronics to eject and have an effect with the fluorescent material pole cup 11 outside from pole cup 11, thus the brightness of raising cold-cathode fluorescence lamp.
Need to prove, after the length of lengthening pole cup 11, if the oxide-coated of metal caesium is inhomogeneous, uncoated part can not be stablized excitation electron in the pole cup 11 so, cause the effective surface area of pole cup internal emission electronics to reduce, thereby make the electron amount that ejects in the pole cup reduce, thereby reduce, reduced the brightness of cold-cathode fluorescence lamp with quantity that the outer fluorescent material of pole cup is had an effect.If the inner surface at pole cup 11 is not coated with the oxide that is covered with the metal caesium, owing to there is not the inner surface emitting electrons of the oxide active electrode cup 11 of metal caesium, it is higher relatively to make the emitting electrons required voltage fall, make the electronics of pole cup 11 be difficult for launching, can cause the black dull start-up time of cold-cathode fluorescence lamp long, even not start.
Described fluorescent material 3 can be three primary colors (RGB) fluorescent material, be specially the three primary colors fluorescent powder that adopts the nanometer coating, before dusting, reject very big particle and nano sized particles fluorophor, in the present invention, the average grain diameter of described fluorescent material 3 can be 4.7 microns～5 microns scope, because the present invention selects the fluorophor of particle size the best as being coated with powder material, make the briliancy of cold-cathode fluorescence lamp be improved significantly, the operating circuit that makes cold-cathode fluorescence lamp need under same brightness reduces, the minimizing of operating current can reduce the decay of electrode, thereby prolong the useful life of electrode, and then prolong the useful life of whole cold-cathode fluorescence lamp;
By adopting the three primary colors fluorescent powder of nano-coating, suppressed the light decay that fluorescent powder grain causes effectively, can prolong the useful life of fluorescent material greatly, thereby reach high brightness, suppressed the light decay phenomenon that fluorescent material causes effectively.
In the present invention, because size and material to electrode, the material of fluorescent material improves, as mentioned above, under equal brightness situation, can reduce the required operating current of cold-cathode fluorescence lamp, the operating current of existing cold-cathode fluorescence lamp is 7～8mA, compared with prior art, on the specific implementation, the operating current of described cold-cathode fluorescence lamp of the present invention can be the low current of 4mA～6.8mA, because operating current reduces, the caloric value of cold-cathode fluorescence lamp reduces, make the Heat stability is good of cold-cathode fluorescence lamp, reduced the operating power of cold-cathode fluorescence lamp, make that its every photoelectric parameter index is more stable.Simultaneously, because operating current reduces, the electrode caloric value reduces, and electrode temperature can reduce, thereby it is oxidized because temperature is high to avoid electrode 1.
In sum, compared with prior art, the invention provides a kind of long-life energy-saving cold-cathode fluorescence lamp, prolonged useful life, and then improved the whole service life of liquid crystal panel, and guarantee liquid crystal panel user's economic interests, satisfy the needs of people's life better, strengthen liquid crystal panel user's product use experience greatly, be of great practical significance.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. long-life energy-saving cold-cathode fluorescence lamp, it is characterized in that, include glass lamp (3), described glass lamp (3) two ends are respectively arranged with an electrode (1), described glass lamp (3) inwall scribbles fluorescent material (2), and each described electrode (1) head has electrode terminal (10), and the tail end of described electrode (1) has pole cup (11), described pole cup (11) is positioned at described glass lamp (3) inside, two ends, and the inner surface of described pole cup (11) applies the oxide of caesium.
2. cold-cathode fluorescence lamp as claimed in claim 1 is characterized in that the oxide of described caesium is evenly coated in the inner surface of described pole cup (11).
3. cold-cathode fluorescence lamp as claimed in claim 2 is characterized in that, the width of described pole cup (11) is 1.45～3.0mm, and length is 6～30mm.
4. cold-cathode fluorescence lamp as claimed in claim 1 is characterized in that, the average grain diameter of described fluorescent material (2) is 4.7 microns～5 microns.
5. cold-cathode fluorescence lamp as claimed in claim 2 is characterized in that, described fluorescent material (2) is for adopting the three primary colors fluorescent powder of nanometer coating.
6. cold-cathode fluorescence lamp as claimed in claim 5 is characterized in that, the operating current of described cold-cathode fluorescence lamp is 4mA～6.8mA.
7. cold-cathode fluorescence lamp as claimed in claim 1 is characterized in that, described glass lamp (3) inside is full of the argon neon mixture body is arranged, and the argon gas ratio in the described glass lamp (3) is 5%-20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102070718A CN102044400A (en) | 2009-10-19 | 2009-10-19 | Energy-saving cold-cathode fluorescence lamp with long service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102070718A CN102044400A (en) | 2009-10-19 | 2009-10-19 | Energy-saving cold-cathode fluorescence lamp with long service life |
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| Publication Number | Publication Date |
|---|---|
| CN102044400A true CN102044400A (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102070718A Pending CN102044400A (en) | 2009-10-19 | 2009-10-19 | Energy-saving cold-cathode fluorescence lamp with long service life |
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| Country | Link |
|---|---|
| CN (1) | CN102044400A (en) |
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2009
- 2009-10-19 CN CN2009102070718A patent/CN102044400A/en active Pending
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| C06 | Publication | ||
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| ASS | Succession or assignment of patent right |
Owner name: TIANJIN SANXING ELECTRONIC CO., LTD. Free format text: FORMER OWNER: SANSUNG ELECTRONIC DISPLAY CO., LTD., TIANJIN Effective date: 20111024 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20111024 Address after: 300385 Micro Electronics Development Zone, Tianjin economic and Technological Development Zone, four Applicant after: Tianjin Sanxing Electronic Co., Ltd. Co-applicant after: Yichang Jinsen Lighting Electronics Co., Ltd. Address before: 300385 micro industry road, Microelectronics Industrial Zone, Tianjin economic and Technological Development Zone, four Applicant before: Sansung Electronic Display Co., Ltd., Tianjin Co-applicant before: Yichang Jinsen Lighting Electronics Co., Ltd. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20110504 |