CN103972035A - Field emission light source - Google Patents
Field emission light source Download PDFInfo
- Publication number
- CN103972035A CN103972035A CN201310034236.2A CN201310034236A CN103972035A CN 103972035 A CN103972035 A CN 103972035A CN 201310034236 A CN201310034236 A CN 201310034236A CN 103972035 A CN103972035 A CN 103972035A
- Authority
- CN
- China
- Prior art keywords
- light source
- anode
- field emission
- cathode
- negative electrode
- 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.)
- Pending
Links
Abstract
The invention discloses a field emission light source. The field emission light source comprises a cathode plate, two anode plates and an isolator rack. The cathode plate comprises a cathode emitter structure, the cathode emitter structure comprises a plurality of electron emission layers distributed in an array mode, and the surfaces of the electron emission layers are arc surfaces with the middle portions protruding. The two anode plates are symmetrically arranged on the two sides of the cathode plate. The cathode plate and the two anode plates are fixed to the inner wall of the isolator rack in a matching mode. The isolator rack, the cathode plate and the two anode plates form a closed structure. The field emission light source is simple in structure and high in practicality. In addition, in the field emission light source, all the areas of an anode light-emitting layer emit light uniformly, dark areas are avoided, and therefore the field emission light source emits light uniformly, and the work performance of the field emission light source is optimized.
Description
Technical field
The present invention relates to a kind of light source, relate in particular to a kind of field emission light source.
Background technology
A kind of green energy conservation lighting source of field emission light source, its principle is to utilize the electron emission layer on negative electrode flat board to launch electron beam, and under the effect of electric field, the luminescent layer on beam bombardment excitation anode flat board and send uniform visible ray.
In some special light sources application scenarios, as stop-light, wall indicator light, need to show by this field emission light source double-side, to reach two-sided considerable object.Yet existing field emission light source mostly is one side luminescence display, conventionally two existing field emission light source rightabouts need to be arranged to the object showing to reach light source double-side.But this device needs two cover drive systems so that above-mentioned two field emission light sources are luminous, complex circuit, poor reliability, and cost is high, is unfavorable for actual applying.
The electron emission layer of the negative electrode flat board of existing field emission light source, normally adopts fritter film to be covered in the two sides in glass substrate with array format.Yet in emission process on the scene, from the electron beam of this fritter film surface Vertical Launch, can only bombard the anode light layer suitable with this fritter film size, thereby lighting area is less, cause by the anode light layer of beam bombardment, not formed dark space, being applied to lighting field has limitation.
Summary of the invention
Technical problem to be solved by this invention is, providing a kind of can show by simple realization double-side, and the higher field emission light source of light extraction efficiency.
In order to solve the problems of the technologies described above, embodiments of the invention provide a kind of field emission light source, comprise that negative electrode is dull and stereotyped, two anode flat plate and slider frame, described negative electrode flat board comprises cathode emission body structure, described cathode emission body structure comprises a plurality of electron emission layers that array distributes that are, the surface of described electron emission layer is the cambered surface of mid portion projection, two described anode flat plate are symmetrically set in respectively the dull and stereotyped both sides of described negative electrode, dull and stereotyped and two the equal adaptations of described anode flat plate of described negative electrode are fixed on the inwall of described slider frame, described slider frame and described negative electrode flat board and two described anode flat plate form enclosed constructions.
Wherein, described cathode emission structure also comprises the spacer with the through hole that a plurality of array arranges, and insert one to one the support portion in described through hole, described support portion comprises the first side and the second side being oppositely arranged, the first side of described support portion is the cambered surface of mid portion projection, and described electron emission layer is covered on the first side of described support portion.
Wherein, described electron emission layer is the nano wire film that grows in the first side of described support portion.
Wherein, the material of described electron emission layer is carbon nano-tube film, and the material of described support portion is stainless steel, and the material of described spacer is pottery.
Wherein, the thickness of described spacer is 1mm, and the diameter of described through hole is 2mm, and the spacing of adjacent described through hole is 2mm.
Wherein, described negative electrode flat board comprises cathode base, two cathode conductive layers and two described cathode emission body structures, two described cathode conductive layers are covered in respectively two surfaces of described cathode base, the described spacer of two described cathode emission body structures fits in respectively the surface of described cathode conductive layer, and the second side of the described support portion of two described cathode emission body structures fixedly fits on described cathode conductive layer respectively.
Wherein, the second side of described support portion is through bonding the fitting on described cathode conductive layer of silver slurry.
Wherein, described anode flat plate comprises anode light layer, anode conductive layer and anode substrate successively, described anode conductive layer is covered in the inwall of described anode substrate, described anode light layer is covered in the surface of described anode conductive layer, the coating of two described anode flat plate is identical, and coating order is dull and stereotyped symmetrical about described negative electrode.
Wherein, described slider frame and described negative electrode flat board and two enclosed constructions that described anode flat plate forms, the vacuum degree of described enclosed construction is 1 * 10
-5pa.
To sum up, the field emission light source of the embodiment of the present invention comprises that the two-sided described negative electrode that all contains described electron emission layer is dull and stereotyped, and two as fluoroscopic described anode flat plate.Described negative electrode flat board is located between two described anode flat plate, bombards corresponding respectively described anode light layer realize light source double-sided display by described electron emission layer electron emission.Described field emission light source is simple in structure, practical.Separately, in described field emission light source, described in each, the bombardment area of the more parallel described electron beam of bombardment area of electron beam is much bigger, make each region uniformly light-emitting of described anode light layer, avoided the generation of dark space, and then make field emission light source luminous more even, more optimized the service behaviour of field emission light source.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the field emission light source that provides of the embodiment of the present invention;
Fig. 2 is the structural representation of the negative electrode flat board that provides of the embodiment of the present invention;
Fig. 3 is the structural representation of another angle of the negative electrode flat board shown in Fig. 2.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Below with reference to accompanying drawing, embodiments of the invention are described.Referring to Fig. 1, a kind of field emission light source 100 for providing in the present invention, comprises negative electrode flat board 10, anode flat plate 20a, 20b and slider frame 30.Described anode flat plate 20a, 20b is symmetrically set in respectively dull and stereotyped 10 both sides of described negative electrode, described negative electrode dull and stereotyped 10 and described anode flat plate 20a, the equal adaptation of 20b is fixed on the inwall of described slider frame 30, described slider frame 30 and described negative electrode dull and stereotyped 10 and described anode flat plate 20a, 20b forms enclosed construction.
Referring to Fig. 2 and Fig. 3, described negative electrode flat board 10 comprises cathode emission body structure 13a, and described cathode emission body structure 13a comprises a plurality of electron emission layer 131a that array distributes that are, and the surface of described electron emission layer 131a is the cambered surface of mid portion projection.
Described cathode emission structure 13a also comprises the spacer 133a of the through hole (not indicating in figure) that has a plurality of array and arrange, and inserts one to one the support portion 132a in described through hole.Described support portion 132a comprises the first side and the second side being oppositely arranged, and described the first side is the cambered surface of mid portion projection, and described electron emission layer 131a is covered in described the first side of described support portion 132a.
In present embodiment, the material of described spacer 133a is pottery.Conventionally adopting the physico-chemical processes such as cutting, polishing is to process and make described via-hole array on 1mm, the length of side pottery that is 10cm at thickness, the diameter of described through hole is preferably 2mm, the spacing of adjacent described through hole is preferably 2mm, then carry out ultrasonic cleaning and do drying and processing, to obtain described spacer 133a.In other embodiments, described spacer 133a can be other insulation materials, as boron nitride ceramics, and simple glass.
In present embodiment, the material of described support portion 132a is stainless steel.Concrete, described support portion 132a is column.Conventionally adopt patterning method to process a plurality of diameter 2mm, the first side is ellipsoid, and the stainless steel column that the second side is plane, carries out polishing to it, and ultrasonic cleaning is also dried, to obtain described support portion 132a.In other embodiments, described support portion 132a also can be simple glass, and then metal-coated films conductive layer on described this simple glass adopts the method for silk screen printing to apply one deck nano wire film on described metallic film conductive layer.
In present embodiment, described electron emission layer 131a is the nano wire film that grows in the first side of described support portion 132a.Concrete, described nano wire film can be carbon nano-tube film or other nano thin-films.Conventionally adopt thermal chemical vapor deposition (CVD) method on described stainless steel column, to grow described carbon nano-tube film to obtain described electron emission layer 131a.
Described negative electrode flat board 10 comprises cathode base 11, cathode conductive layer 12a, 12b, described cathode emission body structure 13a, and with the identical cathode emission body structure of described cathode emission body structure 13a structure 13b.Described cathode emission body structure 13b comprises spacer 133b, support portion 132b and electron emission layer 131b.
Described cathode conductive layer 12a, 12b is covered in respectively two surfaces of described cathode base 11.Conventionally select a thick 3mm, the described cathode base 11 that the length of side is 10cm, after its ultrasonic cleaning drying, adopts magnetron sputtering method at cathode conductive layer 12a described in described cathode base 11 plated surfaces, 12b.
Described spacer 133a also fits in the surface of described cathode conductive layer 12a, and described spacer 133b fits in the surface of described cathode conductive layer 12b.It is upper that the second side of described support portion 132a fixedly fits in described cathode conductive layer 12a, and the second side of described support portion 132b fixedly fits on described cathode conductive layer 12b.In present embodiment, described support portion 132a, the second side of 132b fits in described cathode conductive layer 12a through the bonding correspondence respectively of silver slurry, on 12b.Described spacer 133a, 133b is used for reducing described support portion 132a, 132b and described cathode conductive layer 12a, the electric field influence between 12b.In other embodiments, described silver-colored slurry can adopt other metallic conduction glue to replace.
Refer to Fig. 1, described anode flat plate 20a comprises anode light layer 21a, anode conductive layer 22a and anode substrate 23a successively.Described anode conductive layer 22a is covered in the inwall of described anode substrate 23a, and described anode light layer 21a is covered in the surface of described anode conductive layer 22a.Described anode flat plate 20b comprises anode light layer 21b, anode conductive layer 22b and anode substrate 23b successively, and the structure of described anode flat plate 20b is identical with described anode flat plate 20a with coating, and coating order is about dull and stereotyped 10 symmetries of described negative electrode.Conventionally select a thick 3mm, the described anode substrate 23a that the length of side is 10cm, 23b, to its ultrasonic cleaning oven dry.After use anode substrate 23a described in magnetron sputtering method, described anode conductive layer 22a, 22b are plated respectively in the surface of 23b.Then use silk screen print method at described anode conductive layer 22a, on 22b, apply respectively described anode light layer 21a, 21b.In the present embodiment, described anode light layer 21a, 21b is phosphor powder layer.
Described slider frame 30 and dull and stereotyped 10 and two the described anode flat plate 20a of described negative electrode, the vacuum degree of the enclosed construction that 20b forms is 1 * 10
-5pa.In present embodiment, dull and stereotyped 10 and two the anode flat plate 20a of described negative electrode, 20b is all cuboid piece, and it is dull and stereotyped block that described slider frame 30 is.Described slider frame 30 is thick 2cm, length 10cm, and the ceramic wafer of height 2cm, the inwall of described slider frame 30 is offered a plurality of grooves 31.Described negative electrode dull and stereotyped 10 and described anode flat plate 20a, 20b is arranged in parallel, to increase the luminous efficiency of described field emission light source 100.Described negative electrode dull and stereotyped 10 and described anode flat plate 20a, the equal adaptation of end face of 20b is embedded in described groove 31, reaches better firm effect.Described slider frame 30 is around described negative electrode dull and stereotyped 10 and described anode flat plate 20a, and the square periphery of 20b, with by dull and stereotyped 10 and two the described anode flat plate 20a of described slider frame 30 and described negative electrode, the enclosed construction that 20b forms.In other embodiments, described negative electrode dull and stereotyped 10 and described anode flat plate 20a, 20b can be other irregular set-up modes, also can be the inwall that adopts other modes to be fixed on described slider frame 30, as bonding, is threaded.
The principle of the field emission light source 100 described in the embodiment of the present invention is: when applying a positive voltage at described anode conductive layer 22a, 22b, by after described cathode conductive layer 12a, 12b ground connection, the curved surfaces of described electron emission layer 131a, 131b can be launched electron beam, the vertical curved surfaces of described electron beam also disperses transmitting, with certain dispersion angle, bombards described anode light layer 21a, 21b.
To sum up, the embodiment of the present invention, in order to realize light source double-sided display, provides a kind of field emission light source 100.Described field emission light source 100 comprises the two-sided described negative electrode flat board 10 that all contains described electron emission layer 131a, 131b, and two as fluoroscopic described anode flat plate 20a, 20b, described negative electrode flat board 10 is located between two described anode flat plate 20a, 20b, by described electron emission layer 131a, 131b electron emission, bombard corresponding described anode light layer 21a, 21b respectively, thereby realize the object of light source double-sided display.
In the field emission light source 100 of the embodiment of the present invention, described in each, the bombardment area of the more parallel described electron beam of bombardment area of electron beam is much bigger, make described anode light layer 21a, each region uniformly light-emitting of 21b, avoided the generation of dark space, and then make the luminous more even of field emission light source 100, optimized the service behaviour of field emission light source 100.
Above-described execution mode, does not form the restriction to this technical scheme protection range.The modification of doing within any spirit at above-mentioned execution mode and principle, be equal to and replace and improvement etc., within all should being included in the protection range of this technical scheme.
Claims (9)
1. a field emission light source, it is characterized in that, comprise that negative electrode is dull and stereotyped, two anode flat plate and slider frame, described negative electrode flat board comprises cathode emission body structure, described cathode emission body structure comprises a plurality of electron emission layers that array distributes that are, the surface of described electron emission layer is the cambered surface of mid portion projection, two described anode flat plate are symmetrically set in respectively the dull and stereotyped both sides of described negative electrode, dull and stereotyped and two the equal adaptations of described anode flat plate of described negative electrode are fixed on the inwall of described slider frame, described slider frame and described negative electrode flat board and two described anode flat plate form enclosed constructions.
2. a kind of field emission light source as claimed in claim 1, it is characterized in that, described cathode emission structure also comprises the spacer with the through hole that a plurality of array arranges, and insert one to one the support portion in described through hole, described support portion comprises the first side and the second side being oppositely arranged, the first side of described support portion is the cambered surface of mid portion projection, and described electron emission layer is covered on the first side of described support portion.
3. a kind of field emission light source as claimed in claim 2, is characterized in that, described electron emission layer is the nano wire film that grows in the first side of described support portion.
4. a kind of field emission light source as claimed in claim 3, is characterized in that, the material of described electron emission layer is carbon nano-tube film, and the material of described support portion is stainless steel, and the material of described spacer is pottery.
5. a kind of field emission light source as claimed in claim 2, is characterized in that, the thickness of described spacer is 1mm, and the diameter of described through hole is 2mm, and the spacing of adjacent described through hole is 2mm.
6. a kind of field emission light source as claimed in claim 2, it is characterized in that, described negative electrode flat board comprises cathode base, two cathode conductive layers and two described cathode emission body structures, two described cathode conductive layers are covered in respectively two surfaces of described cathode base, the described spacer of two described cathode emission body structures fits in respectively the surface of described cathode conductive layer, and the second side of the described support portion of two described cathode emission body structures fixedly fits on described cathode conductive layer respectively.
7. a kind of field emission light source as claimed in claim 6, is characterized in that, the second side of described support portion is through bonding the fitting on described cathode conductive layer of silver slurry.
8. a kind of field emission light source as claimed in claim 1, it is characterized in that, described anode flat plate comprises anode light layer, anode conductive layer and anode substrate successively, described anode conductive layer is covered in the inwall of described anode substrate, described anode light layer is covered in the surface of described anode conductive layer, the coating of two described anode flat plate is identical, and coating order is dull and stereotyped symmetrical about described negative electrode.
9. a kind of field emission light source as claimed in claim 1, dull and stereotyped and two enclosed constructions that described anode flat plate forms of described slider frame and described negative electrode, the vacuum degree of described enclosed construction is 1 * 10
-5pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310034236.2A CN103972035A (en) | 2013-01-29 | 2013-01-29 | Field emission light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310034236.2A CN103972035A (en) | 2013-01-29 | 2013-01-29 | Field emission light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103972035A true CN103972035A (en) | 2014-08-06 |
Family
ID=51241404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310034236.2A Pending CN103972035A (en) | 2013-01-29 | 2013-01-29 | Field emission light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103972035A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1741235A (en) * | 2004-08-26 | 2006-03-01 | 日本大业照明株式会社 | Display panel, light-emitting unit used for the display panel and image display device |
| CN1770352A (en) * | 2004-11-05 | 2006-05-10 | 清华大学 | Field emission device and field emission display equipped with the same |
| CN101042971A (en) * | 2006-03-24 | 2007-09-26 | 清华大学 | Field emission double faced displaying light source and method of making same |
| JP2007317369A (en) * | 2006-05-23 | 2007-12-06 | Dialight Japan Co Ltd | Field emission lamp |
| CN101563645A (en) * | 2006-12-18 | 2009-10-21 | 汤姆森特许公司 | Screen structure for field emission device backlighting unit |
| JP2011210439A (en) * | 2010-03-29 | 2011-10-20 | Toppan Printing Co Ltd | Electron emission element, method of manufacturing the same, and surface light emitting element using the electron emission element |
-
2013
- 2013-01-29 CN CN201310034236.2A patent/CN103972035A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1741235A (en) * | 2004-08-26 | 2006-03-01 | 日本大业照明株式会社 | Display panel, light-emitting unit used for the display panel and image display device |
| CN1770352A (en) * | 2004-11-05 | 2006-05-10 | 清华大学 | Field emission device and field emission display equipped with the same |
| CN101042971A (en) * | 2006-03-24 | 2007-09-26 | 清华大学 | Field emission double faced displaying light source and method of making same |
| JP2007317369A (en) * | 2006-05-23 | 2007-12-06 | Dialight Japan Co Ltd | Field emission lamp |
| CN101563645A (en) * | 2006-12-18 | 2009-10-21 | 汤姆森特许公司 | Screen structure for field emission device backlighting unit |
| JP2011210439A (en) * | 2010-03-29 | 2011-10-20 | Toppan Printing Co Ltd | Electron emission element, method of manufacturing the same, and surface light emitting element using the electron emission element |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20050212394A1 (en) | Carbon nanotube substrate structure | |
| CN104064440A (en) | Field emission plane light source and preparing method thereof | |
| TW200746212A (en) | Light emission device and display device using the light emission device as light source | |
| CN101740279A (en) | Field-emissive cathode board and manufacturing method thereof | |
| US7492089B2 (en) | Electron emission type backlight unit and flat panel display device having the same | |
| CN103972035A (en) | Field emission light source | |
| CN103972024A (en) | Field emission light source | |
| CN103972025A (en) | Field emission light source | |
| US8581486B2 (en) | Field emission device and field emission display | |
| CN103972032A (en) | Field emission light source | |
| CN104064435B (en) | A kind of field emission planar light source and preparation method thereof | |
| CN102569005B (en) | Field emission light source device | |
| CN103811281A (en) | Field emission plane light source device and manufacturing method thereof | |
| KR100477727B1 (en) | Field emission display device and manufacturing method thereof | |
| CN104051228A (en) | Field emission light source | |
| CN104064431A (en) | Field emission plane light source and preparing method thereof | |
| CN104064434A (en) | Field transmission plane light source and preparation method thereof | |
| CN103346242A (en) | LED device based on glass substrate and preparation method of LED device | |
| CN104064436A (en) | Field transmission plane light source and preparation method thereof | |
| CN103824751A (en) | Field emission light source | |
| CN203415625U (en) | LED device based on glass substrate | |
| CN103824752A (en) | Field emission light source | |
| CN104064439A (en) | Field emission plane light source and preparing method thereof | |
| KR100254826B1 (en) | Tripod type fed | |
| KR100268242B1 (en) | Two pole tube-type fed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140806 |