CN101315864A - Plane fluorescent lamp - Google Patents
Plane fluorescent lamp Download PDFInfo
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- CN101315864A CN101315864A CNA2007101064119A CN200710106411A CN101315864A CN 101315864 A CN101315864 A CN 101315864A CN A2007101064119 A CNA2007101064119 A CN A2007101064119A CN 200710106411 A CN200710106411 A CN 200710106411A CN 101315864 A CN101315864 A CN 101315864A
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- electrode
- florescent lamp
- flat florescent
- substrate
- fluorescence coating
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Abstract
The invention discloses a planar fluorescent lamp, which comprises a first substrate, at least one electrode pair, a first fluorescent layer, a second substrate, a second fluorescent layer and a gas discharge cavity. The electrode pair is arranged on the first substrate and composed of a first electrode and a second electrode. The first fluorescent layer is covered on the first substrate. The second substrate and the first substrate are oppositely arranged. The second fluorescent layer is covered on the second substrate and arranged to be opposite to the first fluorescent layer. The gas discharge cavity is formed between the first fluorescent layer and the second fluorescent layer and filled with discharge gases. The first fluorescent layer is provided with at least one prominent part and positioned between the first electrode and the second electrode.
Description
Technical field
The present invention is about a kind of fluorescent lamp, especially in regard to a kind of flat florescent lamp.
Background technology
In recent years, the display screen of general TV is a main flow with display panels (LCD panel) gradually.Because display panels itself do not have luminous function, thus backlight module (backlight module) must be set so that light source to be provided below display panels, and then reach the function of demonstration.The light source of the backlight module of commercially available TV is formed with a plurality of cold-cathode tube (CCFL), use light-emitting diode (LED) is also arranged as the light source person.Yet,, therefore all need just can reach luminous effect of uniform by the diffusing panel in the backlight module because CCFL or LED are linear or point source of light.
Because the display panels size day by day increases, the uniformity luminous for backlight module requires also more and more high.Other has the flat florescent lamp made from the luminescence of plasma element, owing to have good illumination efficiency and uniformity, can meet the requirement of backlight module for optical uniformity.
Flat florescent lamp is a kind of luminescence of plasma element, and it mainly is to utilize the dielectric layer discharge principle, produces secondary electron, and the inert gas between negative electrode and the anode produces collision in the gas discharge chamber, and gas ionization is excited to form plasma.Afterwards, the excite state atom that is excited in the plasma can be got back to ground state in the mode of emitting ultraviolet light, and the fluorophor in the further excitation plane fluorescent lamp of the ultraviolet light that is radiated meeting, to produce visible light.And being the research staff always, pursues the high-luminous-efficiency of flat florescent lamp.
Fig. 1 represents the profile of known flat florescent lamp.This flat florescent lamp mainly comprises upper substrate 11, infrabasal plate 12 and two-layer fluorescence coating 13,14.Upper substrate 11 and infrabasal plate 12 are relative and establish, and fluorescence coating 13,14 is covered in respectively on upper substrate 11 and the infrabasal plate 12.And form gas discharge chamber 15 between the fluorescence coating 13,14, gas discharge chamber is filled with discharge gas 151.
Flat florescent lamp also comprises an electrode pair.Electrode pair is made of first electrode 16 and second electrode 17, and first electrode 16 and second electrode 17 are configured on the infrabasal plate 12, covers dielectric layer 18 on it and in order to protection win electrode 16 and second electrode 17 can not damaged because of ionic bombardment.Fluorescence coating 14 is covered on the dielectric layer 18.
Lighting in the process of flat florescent lamp, mainly be that the discharge gas 151 by first electrode 16 and second electrode, 17 emitting electrons and gas discharge chamber 15 inside produces collision, and with discharge gas 151 ionizations, excite to form plasma.Afterwards, the excite state atom that is excited in the plasma can be got back to ground state in the mode of emitting ultraviolet light, and the further fluorescence excitation layer 13,14 of the ultraviolet light that is radiated meeting, to produce visible light.
In flat florescent lamp, discharge gas 151 through the formed plasma of ionization zone A1 as shown in Figure 1, its shape is by first electrode, 16 to second electrodes 17, similar arch.Have height H between plasma zone A1 and the fluorescence coating 14, the degree that makes fluorescence coating 14 be stimulated is not good, has therefore limited the luminous efficiency of flat florescent lamp yet.
Therefore, how to provide a kind of flat florescent lamp, can improve the degree that fluorescence coating is stimulated, and then promote luminous efficiency, real is current important topic.
Summary of the invention
Because above-mentioned problem, purpose of the present invention can improve the degree that fluorescence coating is stimulated for providing a kind of, and then promotes the flat florescent lamp of luminous efficiency.
Therefore, for reaching above-mentioned purpose, comprise first substrate, at least one electrode pair, first fluorescence coating, second substrate, second fluorescence coating and gas discharge chamber according to a kind of flat florescent lamp of the present invention.This electrode pair is disposed on this first substrate, and is made up of first electrode and second electrode.This first fluorescence coating is covered on this first substrate.This second substrate is relative with this first substrate and establish.This second fluorescence coating is covered on this second substrate, and relative with this first fluorescence coating and establish.This gas discharge chamber is formed between this first fluorescence coating and this second fluorescence coating and is filled with discharge gas.This first fluorescence coating has at least one protuberance, and this protuberance is between this first electrode and this second electrode.
From the above, the fluorescence coating of a kind of flat florescent lamp of the present invention has protuberance, and protuberance is between two electrodes, so protuberance of the present invention can directly touch the formed plasma of discharge gas ionization zone, and significantly improve the degree that fluorescence coating is stimulated, and then promote the luminous efficiency of flat florescent lamp.
Description of drawings
Fig. 1 is a kind of profile of known flat florescent lamp;
Fig. 2 is the profile according to the flat florescent lamp of first preferred embodiment of the invention;
Fig. 3 is the profile according to the flat florescent lamp of second preferred embodiment of the invention;
Fig. 4 is the profile according to the flat florescent lamp of third preferred embodiment of the invention;
Fig. 5 is the profile according to the flat florescent lamp of four preferred embodiment of the invention;
Fig. 6 is the profile according to the flat florescent lamp of fifth preferred embodiment of the invention; And
Fig. 7 (a) is the variation schematic diagram of protuberance of the present invention to 7 (d).
Description of reference numerals
11,21: upper substrate
12,22: infrabasal plate
13,14,23,24: fluorescence coating
15,25: gas discharge chamber
151,251: discharge gas
16,26,46: the first electrodes
17,27,37,47: the second electrodes
18,38,48: dielectric layer
241,691: protuberance
69: the reflector
710: bearing substrate
720: sticker
A1, A2: plasma zone
H: highly
Embodiment
Hereinafter with reference to relevant indicators, a kind of flat florescent lamp according to the preferred embodiment of the present invention is described.
First embodiment
Fig. 2 is the profile according to the flat florescent lamp of first embodiment of the invention.This flat florescent lamp comprises upper substrate 21, infrabasal plate 22 and two fluorescence coatings 23,24.Upper substrate 21 and infrabasal plate 22 are relative and establish, and fluorescence coating 23,24 is covered in respectively on upper substrate 21, the infrabasal plate 22. Fluorescence coating 23,24 is established relatively, and forms gas discharge chamber 25 therebetween, fills discharge gas 251 in the gas discharge chamber.
Flat florescent lamp also comprises an electrode pair.Electrode pair is made of first electrode 26 and second electrode 27, and first electrode 26 and second electrode 27 are configured on the infrabasal plate 22.In the present embodiment, first electrode 26 and second electrode 27 are disposed at the surface of infrabasal plate 22 away from fluorescence coating 24.
In addition, fluorescence coating 24 has protuberance 241.Protuberance 241 is oppositely arranged with fluorescence coating 23, and between first electrode 26 and second electrode 27.
After first electrode 26 and 27 energisings of second electrode, the discharge gas 251 of first electrode 26 and second electrode, 27 emitting electrons and gas discharge chamber 25 inside produces collision, and with discharge gas 251 ionizations, excite to form plasma plasma zone A2 as shown in Figure 2.Then, the excite state atom that is excited in the plasma can be got back to ground state in the mode of emitting ultraviolet light, and the further fluorescence excitation layer 23,24 of the ultraviolet light that is radiated meeting, to produce visible light.
Since the protuberance 241 of fluorescence coating 24 can be comparatively near or directly contact plasma zone A2, and can increase the area that is stimulated of fluorescence coating, promote luminous efficiency.
Second embodiment
Fig. 3 is the profile according to the flat florescent lamp of second embodiment of the invention.This flat florescent lamp and flat florescent lamp shown in Figure 2 are similar, both differences are relative two surfaces that first electrode 26 in the present embodiment and second electrode 37 are disposed at infrabasal plate 22 respectively, and wherein second electrode 37 is positioned at the one side of infrabasal plate 22 near fluorescence coatings 24.Dielectric layer 38 covers second electrode 37 makes second electrode 37 can not damage because of ionic bombardment with protection.
In addition, fluorescence coating 24 has protuberance 241, and is identical with the protuberance of first embodiment, so repeat no more in this.
The 3rd embodiment
Fig. 4 is the profile according to the flat florescent lamp of third embodiment of the invention.This flat florescent lamp and the foregoing description are roughly similar, and unique difference is that first electrode 46 and second electrode 47 in the present embodiment is disposed at the surface of infrabasal plate 22 near fluorescence coating 24.Dielectric layer 48 covers first electrode 46 and second electrode 47.
In addition, fluorescence coating 24 has protuberance 241, and is identical with the protuberance of first embodiment, so repeat no more in this.
The 4th embodiment
Fig. 5 is the profile according to the flat florescent lamp of fourth embodiment of the invention.This flat florescent lamp and flat florescent lamp shown in Figure 3 are roughly the same, and both difference is that the below of infrabasal plate 22 in the present embodiment more disposes bearing substrate 710, bearing substrate 710 can be fitted by sticker 720 and infrabasal plate 22, to support this flat florescent lamp.
The 5th embodiment
Fig. 6 is the profile according to the flat florescent lamp of fifth embodiment of the invention.This flat florescent lamp and flat florescent lamp shown in Figure 2 are roughly similar, and both difference is that the flat florescent lamp of present embodiment also comprises reflector 69, it is disposed between fluorescence coating 24 and the infrabasal plate 22, and cover on the infrabasal plate 22, and make fluorescence coating 24 between gas discharge chamber 25 and reflector 69.Reflector 69 has protuberance 691.Because fluorescence coating 24 is covered in reflector 69, so fluorescence coating 24 corresponding protuberances 691 have protuberance 241, and protuberance 241 is covered on the protuberance 691, and is formed between first electrode 26 and second electrode 27.Since protuberance 641 can be near or directly contact the plasma zone, and can increase the area that is stimulated of fluorescence coating 24, the degree that makes fluorescence coating be stimulated significantly improves, and then promotes luminous efficiency.In addition, reflector 69 can be subjected to UV-irradiation with fluorescence coating and the visible light that excites reflexes to upper substrate 21, and promotes luminous efficiency.
In an embodiment of the present invention, infrabasal plate 22 dielectric material and the thickness that can be glass for example or pottery is preferably 0.3-2mm; Upper substrate 21 for example can be, and the transparent material and the thickness of glass are preferably 0.3-5mm; Made and thickness is preferably 3-50 μ m by electric conducting materials such as silver, copper, ITO or IZO for electrode 26,27,37,46,47; Fluorescence coating 23,24 is preferably 2-400 μ m for the material and the thickness that can send visible wavelength after UV-irradiation; Discharge gas 251 is Xe, Ne, Ar, other inert gases, mercury-free gas or its mixing; Dielectric layer 38,48 is by PbO, SiO
2, Bi
2O
3, ceramic material or its combination constitutes and thickness is preferably 30-400 μ m; Bearing substrate 710 can be made by glass or ceramic material; Sticker 720 can be glass cement, ceramic glue, UV glue or heat-curable glue; And reflector 69 is with ceramic material or be mixed with TiO
2, Al
2O
3, BaSO
4Ceramic-vitreous material Deng high reflectance material or its mixing constitutes.
In the present invention, the edge of upper and lower base plate can be bonded to each other or bonding with the composition discharge space with edge strip, and the distance between upper and lower base plate is preferably 1-10mm.Distance between upper and lower base plate can at random place between upper and lower base plate with sept and keep, or replaces separation material with the moulding upper plate.
In sum, the fluorescence coating of flat florescent lamp of the present invention has protuberance, and protuberance is between two electrodes, so protuberance of the present invention can be comparatively near or directly touch the formed plasma of discharge gas ionization zone, and can increase the area that is stimulated of fluorescence coating, the degree that makes fluorescence coating be stimulated significantly improves, and then promotes the luminous efficiency of flat florescent lamp.
The above only is an illustrative, but not is restricted person.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the appended claim its equivalent modifications of carrying out or change.
Claims (26)
1, a kind of flat florescent lamp comprises:
First substrate;
At least one electrode pair is disposed at this first substrate, and is made up of first electrode and second electrode;
First fluorescence coating is covered in this first substrate;
Second substrate is relative with this first substrate and establish;
Second fluorescence coating is covered in this second substrate, and relative with this first fluorescence coating and establish; And
Gas discharge chamber is formed between this first fluorescence coating and this second fluorescence coating and is filled with discharge gas,
Wherein this first fluorescence coating has at least the first protuberance that is oppositely arranged with this second fluorescence coating, and this first protuberance is between this first electrode and this second electrode.
2, flat florescent lamp as claimed in claim 1, wherein this first protuberance is a projection.
3, flat florescent lamp as claimed in claim 1, wherein triangular in shape, trapezoidal, the rectangle of this first protuberance, polygon, stairstepping or arc.
4, flat florescent lamp as claimed in claim 1, it also comprises the reflector, wherein this first fluorescence coating is between this gas discharge chamber and this reflector.
5, flat florescent lamp as claimed in claim 4, wherein this reflector has second protuberance, and this first protuberance is covered in this second protuberance.
6, flat florescent lamp as claimed in claim 4, wherein this reflector is with ceramic material or be mixed with TiO
2, Al
2O
3, BaSO
4Ceramic-vitreous material Deng high reflectance material or its mixing constitutes.
7, flat florescent lamp as claimed in claim 1, wherein this first substrate is dielectric material, glass or pottery.
8, flat florescent lamp as claimed in claim 7, wherein the thickness of this first substrate is 0.3-2mm.
9, flat florescent lamp as claimed in claim 1, wherein this first electrode and this second electrode are disposed at the side of this first substrate near this first fluorescence coating.
10, flat florescent lamp as claimed in claim 9, it also comprises dielectric layer, covers this first electrode and this second electrode.
11, flat florescent lamp as claimed in claim 10, wherein this dielectric layer is by PbO, SiO
2, Bi
2O
3, ceramic material or its mix constitute.
12, flat florescent lamp as claimed in claim 1, wherein this first electrode and this second electrode are disposed at the side of this first substrate away from this first fluorescence coating.
13, flat florescent lamp as claimed in claim 1, wherein this first electrode and this second electrode are disposed at the relative both sides of this first substrate.
14, flat florescent lamp as claimed in claim 13, it also comprises dielectric layer, covers this first electrode or second electrode.
15, flat florescent lamp as claimed in claim 14, wherein the thickness of this dielectric layer is 30-400 μ m.
16, flat florescent lamp as claimed in claim 1, it also comprises bearing substrate, is disposed at the below of this first substrate.
17, flat florescent lamp as claimed in claim 16, wherein this bearing substrate is made by glass or ceramic material.
18, flat florescent lamp as claimed in claim 16, it also comprises sticker, is disposed between this first substrate and this bearing substrate.
19, flat florescent lamp as claimed in claim 18, wherein this sticker comprises glass cement, ceramic glue, UV glue or heat-curable glue.
20, flat florescent lamp as claimed in claim 1, wherein this first fluorescence coating and this second fluorescence coating are by forming through the material that UV-irradiation produces visible light.
21, flat florescent lamp as claimed in claim 1, wherein this discharge gas comprises Xe, Ne, Ar, other inert gases, mercury-free gas or its mixing.
22, flat florescent lamp as claimed in claim 1, it also comprises at least one sept, between this first substrate and this second substrate, makes that the distance between this two substrate maintains 1-10mm.
23, flat florescent lamp as claimed in claim 1, wherein this second substrate is a glass, and thickness is 0.3-5mm.
24, flat florescent lamp as claimed in claim 1, wherein this first electrode and this second electrode are made of silver, copper, ITO or IZO.
25, flat florescent lamp as claimed in claim 24, wherein the thickness of this first electrode and this second electrode is 3-50 μ m.
26, flat florescent lamp as claimed in claim 1, wherein the thickness of this first fluorescence coating and second fluorescence coating is 2-400 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101064119A CN101315864A (en) | 2007-05-29 | 2007-05-29 | Plane fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101064119A CN101315864A (en) | 2007-05-29 | 2007-05-29 | Plane fluorescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101315864A true CN101315864A (en) | 2008-12-03 |
Family
ID=40106813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101064119A Pending CN101315864A (en) | 2007-05-29 | 2007-05-29 | Plane fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101315864A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810554A (en) * | 2016-05-17 | 2016-07-27 | 福州市台江区振斌高效电磁聚能科技研究所 | Flat stepless lamp |
-
2007
- 2007-05-29 CN CNA2007101064119A patent/CN101315864A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810554A (en) * | 2016-05-17 | 2016-07-27 | 福州市台江区振斌高效电磁聚能科技研究所 | Flat stepless lamp |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081203 |