CN101320670A - Plane fluorescent lamp - Google Patents
Plane fluorescent lamp Download PDFInfo
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- CN101320670A CN101320670A CNA2007101088931A CN200710108893A CN101320670A CN 101320670 A CN101320670 A CN 101320670A CN A2007101088931 A CNA2007101088931 A CN A2007101088931A CN 200710108893 A CN200710108893 A CN 200710108893A CN 101320670 A CN101320670 A CN 101320670A
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- florescent lamp
- flat florescent
- electrode
- protuberance
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Abstract
The invention discloses a flat fluorescent lamp, comprising a first substrate, at least one electrode pair, a first fluorescent layer, a second substrate, a second fluorescent later and a gas discharging cavity. The electrode pair is configured on the first substrate and composed of a first electrode and a second electrode. The first fluorescent layer covers on the first substrate which is provided opposite to the second substrate. The second fluorescent layer covers on the second substrate. The gas discharging cavity is formed between the first fluorescent layer and the second fluorescent layer and filled with discharge gas. The first substrate includes at least a first protrusion part, corresponding to which the first fluorescent layer includes at least a second protrusion part. The first protrusion part and the second protrusion part are located between the first electrode and the second electrode. The invention advances the activated level of the fluorescent layers to a large extent, thus further promoting luminous efficiency of the flat fluorescent lamp.
Description
Technical field
The present invention relates to a kind of fluorescent lamp, particularly a kind of flat florescent lamp.
Background technology
In recent years, the display screen of 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 tubes (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.
Fig. 1 represents the profile of the structure 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, the infrabasal plate 12.And form gas discharge chamber 15 between the fluorescence coating 13,14, fill discharge gas 151 in the gas discharge chamber.
Flat florescent lamp also comprises at least one 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.Dielectric layer 18 covers first and second electrode, makes first and second electrode 16,17 can not damage because of ionic bombardment as protection.Fluorescence coating 14 is to be covered on the dielectric layer 18.
Lighting in the process of flat florescent lamp, mainly be in gas, to produce electronics by first electrode 16 and second electrode 17, 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 is through the shape of the formed plasma zone A1 of ionization similar arch as shown in Figure 1.Have height H between plasma zone A1 and the fluorescence coating 14, this 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 made up of first electrode and second electrode and is disposed on this first substrate.This second substrate is relative with this first substrate and establish.This first and second fluorescence coating is covered in respectively on this first and second substrate.This gas discharge chamber is formed between this first fluorescence coating and this second fluorescence coating and is filled with discharge gas.This first substrate has at least the first protuberance, and this first fluorescence coating has at least the second protuberance corresponding to this first protuberance.This first and second protuberance is between this first electrode and this second electrode.
From the above, the substrate of a kind of flat florescent lamp of the present invention has first protuberance, and because fluorescence coating is arranged at the top of substrate, so fluorescence coating has second protuberance corresponding to first protuberance, and second protuberance is between two electrodes.Therefore second protuberance of the present invention can improve the degree that fluorescence coating is stimulated near the formed plasma of discharge gas ionization zone, to 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 embodiment of the invention;
Fig. 3 is the profile according to the flat florescent lamp of second embodiment of the invention;
Fig. 4 is the profile according to the flat florescent lamp of third embodiment of the invention;
Fig. 5 is the profile according to the flat florescent lamp of fourth embodiment of the invention;
Fig. 6 is the profile according to the flat florescent lamp of fifth embodiment of the invention;
Fig. 7 is the variation schematic diagram of the infrabasal plate of flat florescent lamp of the present invention;
Fig. 8 is the profile according to the flat florescent lamp of sixth embodiment of the invention;
Fig. 9 is the profile according to the flat florescent lamp of seventh embodiment of the invention; And
The variation schematic diagram of the upper substrate of Figure 10 flat florescent lamp of the present invention.
Description of reference numerals
11,21,81,91: upper substrate
12,22,62: infrabasal plate
13,14,23,24,83,93: fluorescence coating
15,25: gas discharge chamber
151,251: discharge gas
16,26,46: the first electrodes
17,27,37: the second electrodes
18,38: dielectric layer
221,621: the first protuberances
241: the second protuberances
69: reflector 710: bearing substrate
720: sticker 811,911: the three protuberances
831,931: the four protuberance A1, A2: plasma zone
H: highly
Embodiment
Hereinafter with reference to correlative type, a kind of flat florescent lamp according to the embodiment of the 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-layer fluorescence coating 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 the present embodiment, infrabasal plate 22 has at least the first protuberance 221, and promptly first protuberance 221 is the projection of infrabasal plate 22.The generation type of first protuberance 221 can form by etching infrabasal plate 22, or forms by infrabasal plate 22 is added material.
Because fluorescence coating 24 covers infrabasal plate 22, so fluorescence coating 24 has second protuberance 241 corresponding to first protuberance 221.Promptly second protuberance 241 covers first protuberance 221.In addition, first protuberance 221 and second protuberance 241 are 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 second 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 24, and then 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, and both differences are relative two surfaces that first electrode 26 in the present embodiment and second electrode 37 are disposed at infrabasal plate 22, and wherein second electrode 37 is positioned at the surface 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.
In addition, infrabasal plate 22 has first protuberance 221 and fluorescence coating 24 has second protuberance 241, and is identical with first and second protuberance of first embodiment, therefore repeats no more.
The 3rd embodiment
Fig. 4 is the profile according to the flat florescent lamp of third embodiment of the invention.The flat florescent lamp of this embodiment and the foregoing description are roughly similar, and unique difference is that first electrode 46 of present embodiment and second electrode 37 all are disposed at the surface of infrabasal plate 22 near fluorescence coating 24.Dielectric layer 48 covers first electrode 46 and second electrode 37.
The infrabasal plate 22 of present embodiment has first protuberance 221, and fluorescence coating 24 has second protuberance 241, and is identical with first and second protuberance of the foregoing description, repeats no more.
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 infrabasal plate 22 belows of present embodiment more dispose bearing substrate 710, this bearing substrate 710 can be fitted with infrabasal plate 22 by sticker 720, 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 62, and promptly fluorescence coating 24 is between gas discharge chamber 25 and reflector 69.
In addition, infrabasal plate 62 has at least the first protuberance 621.In the present embodiment, first protuberance 621 is not limited to aspect shown in Figure 6, also can be as shown in Figure 7, and infrabasal plate 62 can be wavy, and its medium wave peak constitutes first protuberance 621.In the present embodiment, infrabasal plate 62 and first protuberance, 621 one-body molded making.Because fluorescence coating 24, reflector 69 and infrabasal plate 62 cover layer by layer, so fluorescence coating 24 has second protuberance 241 of corresponding first protuberance 621.
The 6th embodiment
Fig. 8 is the profile according to the flat florescent lamp of sixth embodiment of the invention.This flat florescent lamp and flat florescent lamp shown in Figure 3 are roughly similar, and both difference is that the fluorescent lamp upper substrate 81 of present embodiment has two the 3rd protuberances 811, and promptly the 3rd protuberance 811 is the projection of upper substrate 81.The generation type of the 3rd protuberance 811 can form by etching upper substrate 81, or forms by upper substrate 81 is added material.Fluorescence coating 83 has the 4th protuberance 831 corresponding to the 3rd protuberance 811, and the electrode pair of the 4th protuberance 831 and infrabasal plate is relative and establish.
Since second protuberance 841 of the 4th protuberance 831 of fluorescence coating 83 and fluorescence coating 84 can be comparatively near or directly contact the plasma zone, and can increase the area that is stimulated of fluorescence coating 83 and fluorescence coating 84, therefore the degree that is stimulated of fluorescence coating significantly improves, and then promotes luminous efficiency.
The 7th embodiment
Fig. 9 is the profile according to the flat florescent lamp of seventh embodiment of the invention.This flat florescent lamp and flat florescent lamp shown in Figure 8 are roughly similar, have the 3rd protuberance 911 relative with fluorescence coating 94 and that establish and both difference is the upper substrate 91 of present embodiment, and promptly the 3rd protuberance 911 is the projection of upper substrate 91.In the present embodiment, the 3rd protuberance 911 is not limited to aspect shown in Figure 9, also can be as shown in figure 10, and upper substrate 91 can be wavy, and its medium wave peak constitutes the 3rd protuberance 911.In the present embodiment, upper substrate 91 and the 3rd protuberance 911 one-body molded making.Fluorescence coating 93 has the 4th protuberance 931 corresponding to the 3rd protuberance 911, and the 4th protuberance 931 is established with respect to second protuberance 941.
In an embodiment of the present invention, the protuberance number of upper substrate and infrabasal plate is not particularly limited, and can change according to user's demand, as long as can reach the purpose of promoting luminous efficiency.
In an embodiment of the present invention, infrabasal plate 22,32,62 dielectric material and the thickness that can be glass for example or pottery is preferably 0.3-2mm; Upper substrate 21,81,91 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; Fluorescence coating 23,24,83,93 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 combination; Dielectric layer 38 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 combination 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 substrate of a kind of flat florescent lamp of the present invention has first protuberance, and because fluorescence coating is arranged at the top of substrate, so fluorescence coating has second protuberance corresponding to first protuberance, and second protuberance is between two electrodes.Therefore, second protuberance of the present invention can be comparatively near the formed plasma of discharge gas ionization zone, and 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 (34)
1, a kind of flat florescent lamp comprises:
First substrate;
At least one electrode pair is formed and is disposed on this first substrate by 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
Gas discharge chamber is formed between this first fluorescence coating and this second fluorescence coating, and is filled with discharge gas,
Wherein this first substrate has at least the first protuberance that is oppositely arranged with this second fluorescence coating, this first fluorescence coating be to should having at least the second protuberance by first protuberance, and this first protuberance and this second protuberance are between this first electrode and this second electrode.
2, flat florescent lamp as claimed in claim 1, wherein this first protuberance projection that is this first substrate.
3, flat florescent lamp as claimed in claim 1, wherein this first protuberance forms by this first substrate of etching.
4, flat florescent lamp as claimed in claim 1, wherein this first protuberance forms by this first substrate is added material.
5, flat florescent lamp as claimed in claim 1, wherein this first substrate is wavy or tabular.
6, flat florescent lamp as claimed in claim 1, wherein this second protuberance covers this first protuberance.
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 surface 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 combination constitutes.
12, flat florescent lamp as claimed in claim 11, wherein the thickness of this dielectric layer is 30-400 μ m.
13, flat florescent lamp as claimed in claim 1, wherein this first electrode and this second electrode are disposed at the surface of this first substrate away from this first fluorescence coating.
14, flat florescent lamp as claimed in claim 1, wherein this first electrode and this second electrode are disposed at two relative surfaces of this first substrate.
15, flat florescent lamp as claimed in claim 1, it also comprises bearing substrate, is disposed at the below of this first substrate.
16, flat florescent lamp as claimed in claim 15, it also comprises sticker, is disposed between this first substrate and this bearing substrate.
17, flat florescent lamp as claimed in claim 16, wherein this sticker comprises glass cement, ceramic glue, UV glue or heat-curable glue.
18, flat florescent lamp as claimed in claim 1, wherein this first fluorescence coating and this second fluorescence series of strata are by being formed through the material that UV-irradiation produces visible light.
19, flat florescent lamp as claimed in claim 1, wherein this discharge gas comprises Xe, Ne, Ar, other inert gases, mercury-free gas or its combination.
20, flat florescent lamp as claimed in claim 1, at least one sept that it also comprises between this first substrate and this second substrate makes that the distance between these substrates maintains 1-10mm.
21, 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.
22, flat florescent lamp as claimed in claim 21, wherein this reflector is by ceramic material or be mixed with the ceramic-vitreous material of highly reflective material.
23, flat florescent lamp as claimed in claim 22, wherein this highly reflective material is TiO
2, Al
2O
3, BaSO
4Or its combination.
24, flat florescent lamp as claimed in claim 1, wherein this second substrate is a glass, and thickness is 0.3-5mm.
25, flat florescent lamp as claimed in claim 1, wherein this first electrode and this second electrode are made of silver, copper, ITO or IZO.
26, flat florescent lamp as claimed in claim 25, wherein the thickness of this first electrode and this second electrode is 3-50 μ m.
27, 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.
28, flat florescent lamp as claimed in claim 1, wherein this second substrate has at least the three protuberance that is oppositely arranged with this first fluorescence coating, and this second fluorescence coating is to having at least the four protuberance by the 3rd protuberance.
29, flat florescent lamp as claimed in claim 28, wherein the 4th protuberance is relative with this second protuberance and establish.
30, flat florescent lamp as claimed in claim 28, wherein these the 4th protuberances are relative with this electrode pair and establish.
31, flat florescent lamp as claimed in claim 28, wherein the 3rd protuberance is the projection of this second substrate.
32, flat florescent lamp as claimed in claim 28, wherein the 3rd protuberance forms by this second substrate of etching.
33, flat florescent lamp as claimed in claim 28, wherein the 3rd protuberance forms by this second substrate is added material.
34, flat florescent lamp as claimed in claim 28, wherein this second substrate is wavy or tabular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101088931A CN101320670A (en) | 2007-06-05 | 2007-06-05 | Plane fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101088931A CN101320670A (en) | 2007-06-05 | 2007-06-05 | Plane fluorescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101320670A true CN101320670A (en) | 2008-12-10 |
Family
ID=40180656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101088931A Pending CN101320670A (en) | 2007-06-05 | 2007-06-05 | Plane fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101320670A (en) |
-
2007
- 2007-06-05 CN CNA2007101088931A patent/CN101320670A/en active Pending
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Open date: 20081210 |