CN101128073A - Plane field emission lighting module - Google Patents
Plane field emission lighting module Download PDFInfo
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- CN101128073A CN101128073A CNA2006101098229A CN200610109822A CN101128073A CN 101128073 A CN101128073 A CN 101128073A CN A2006101098229 A CNA2006101098229 A CN A2006101098229A CN 200610109822 A CN200610109822 A CN 200610109822A CN 101128073 A CN101128073 A CN 101128073A
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- field emission
- lighting module
- plane field
- emission lighting
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Abstract
The utility model relates to an emission and lighting module for a plane field, comprising an upper base plate, a lower base plate, an anode plate, and a luminescent layer. The utility model is characterized in that the lower base plate comprises a plurality of cathodes and a plurality of electron emitters, wherein the cathode is positioned on the upper surface of the lower base plate, the electron emitter is positioned above the cathode, the anode plate is retained between the upper base plate and the lower base plate, a plurality of grooves or openings are positioned on the lower surface, and the electron emitter is positioned in the groove or the opening after being assembled, and the luminescent layer is positioned in the inner surfaces of the groove and the opening. The utility model has advantages of increasing the heat elimination for the backlight module emitted by the field, improving the light emission efficiency and lowering the difficulty on the encapsulation.
Description
Technical field
The invention relates to a kind of field emission lighting module, refer to a kind of plane field emission lighting module that is applicable to display or general closed planar formula lighting apparatus especially.
Background technology
In recent years because the importance of display in people life increases day by day, except use a computer or Internet, television set, mobile phone, PDA(Personal Digital Assistant), digital camera etc. must control transmission information by the transmission display device.Compared to the conventional picture tube display, that new flat-panel screens from generation to generation has is in light weight, volume is little and meet the advantage of health, but problems such as its brightness, power consumption still have the space of improvement.
In numerous emerging flat-panel screens technology, be to serve as the main trend of using at present with LCD (LCD).Because LCD is non-self luminous display, must can produce Presentation Function by adding the light source mode, so backlight module promptly plays the part of the role of light source in LCD, be to be one of important spare part of LCD.
In traditional display backlight source, adopt cold cathode fluorescent lamp (CCFL) mostly with the illumination plane display.Yet cold cathode fluorescent lamp (CCFL) have the life-span short, power consumption is big, the surperficial not good and fluorescent tube of color contains problems such as mercury metal pair environment pollutes.And, to restrain owing to be subjected to the fluorescent tube external form, the backlight module of the display assemblies such as light guide plate, reflecting plate, diffuser plate of need arranging in pairs or groups usually are with homogenizing fluorescent tube emitted light beams.So, tradition cold cathode fluorescent lamp (CCFL) except the above-mentioned complementary assembly of arranging in pairs or groups, need have certain space thickness with even divergent light source during as the backlight module of light source, just can provide liquid crystal panel uniform illuminating ray, make its range of application be subjected to very large restriction.
In addition, light-emitting diode (LED) backlight module that also can adopt of LCD throws light on.Light-emitting diode (LED) has advantages such as low power consumption, high brightness output and volume are little, but, because light-emitting diode (LED) light source is directly light to be imported towards the light guide plate side, cause the one section inhomogeneous bright band that can't overcome that has at the interface that enters light guide plate at light source to occur, and all structural parameters only design at the panel of single size, different size must have different design of Structural Parameters, makes its application receive the restriction of panel size greatly.
Therefore, develop at present, to overcome above-mentioned application limitations with the lighting module of plane field emission lighting module as LCD.The structure of general closed planar field emission lighting module includes as shown in Figure 1: a upper substrate 100, this upper substrate 100 comprise an anode 101 and a fluorescent bisque 102; One infrabasal plate 103, include most negative electrodes 104, electron emitter 105, with insulating barrier 106; And most supporters 107 are folded between upper substrate 100 and the infrabasal plate 103, a vertical range of presetting is arranged between the two and keep between the two vacuum of space to keep.This negative electrode 104 is the tops that are formed at this infrabasal plate 103 with insulating barrier 106, and this electron emitter 105 is the tops that are formed at this negative electrode 104.In addition, this anode 101 is to be formed at this upper substrate 100 belows, and this fluorescent bisque 102 is to be formed at this anode 101 belows.Structure thus, electron emitter 105 launch electronics, and impact fluorescence bisque 102 is stimulated fluorescent bisque 102 and gives out light under the voltage of anode 101 attracts.Generally speaking, the upper substrate 100 of this plane field emission lighting module is required to be transparency carrier, the luminous upper substrate 100 that passes of fluorescent bisque 102 then, and form area source.
Yet general field emission backlight module application is when LCD, because anode 101 is close to the diaphragm of LCD, anode 101 can be overheated because of electronic impact when the operating time is long, causes diaphragm and liquid crystal deterioration.And, because fluorescent bisque 102 except that the light that shows toward the top, also has the light that can't show toward other direction, so that luminous efficiency reduces.In addition, the field emission backlight module since when encapsulation be vacuum state because of the field emission backlight inside modules, excessive when easy when inside and outside differential pressure, cause upper and lower substrate (being generally glass substrate) to break easily.
Therefore, along with flat-panel screens maximizes day by day, height becomes more meticulous and the development of high image qualityization, how solving that known field emission backlight module heat dissipating is poor, luminous efficiency is low and problem such as encapsulation difficulty, will be the problem of needing solution at present badly.
Summary of the invention
The invention provides a kind of plane field emission lighting module, comprising: a upper substrate; One comprise most negative electrodes, with the infrabasal plate of most electron emitters; Wherein, these negative electrodes are the upper surfaces that are positioned at this infrabasal plate, and these electron emitters are to be positioned on these negative electrodes; One inserts and puts the positive plate between this upper substrate and this infrabasal plate, and the lower surface of this positive plate has most grooves or opening, and is to be placed in these grooves or the opening after these electron emitter assemblings; An and luminescent layer that is positioned at these grooves or opening inner surface.
Structure thus, electron emitter is launched electronics under the voltage of positive plate attracts, and bump is arranged in the luminescent layer of positive plate groove (or opening), luminescent layer is stimulated gives out light, and the luminous meeting of this luminescent layer is reflected by positive plate, and it is outwards luminous to pass infrabasal plate, forms planar light source.
Compared to known field emission lighting module (as shown in Figure 1), the positive plate of plane field emission lighting module of the present invention has most grooves or opening, therefore, can increase field emission light-emitting area and luminosity, and make the electron distributions that is emitted to positive plate even.And the inner surface of groove or opening can reflect luminescent layer luminous of different directions, and improves amount of light and exhale light direction and make bright dipping more even.
In addition, the positive plate of plane field emission lighting module of the present invention itself can be used as interval body, so need not add interval body in field emission lighting module, can avoid the interval body in the known field emission lighting module (as shown in Figure 1), need to place caused cost and rise, and no fine registration requirement easily is installed with special mechanical arm.
Positive plate material of the present invention can be metallic plate or the surperficial insulation board that is formed with metal level, is more preferred from metallic plate.When positive plate of the present invention was metallic plate, because metallic conductivity is good, electronics was easily derived, and metal heat-conducting is fast, can avoid positive plate overheated.And the positive plate back side also optionally is formed with the black application that heat loss through radiation is used, so easier heat is shed.
The positive plate of plane field emission lighting module of the present invention is one to have the conductive plate of most grooves or opening, and the shape of cross section of this groove or opening does not limit, and is preferably V-arrangement, U-shaped, semicircle, arc, trapezoidal, irregular shape or its combination.
The visual process requirement of the groove of the positive plate of plane field emission lighting module of the present invention and adjust each groove distance, arrangement mode or number to each other is to reach best service efficiency.So the groove shape of the positive plate of plane field emission lighting module of the present invention does not limit, and is preferably the ribbon groove of strip, crooked shape, zigzag, irregular shape or its combined shaped.The groove width of positive plate of the present invention does not limit, and is preferably width and equates.The arrangement mode of the groove of positive plate of the present invention does not limit, and is preferably the infrabasal plate that is arranged in parallel to each other.
Same, the visual process requirement of the opening of the positive plate of plane field emission lighting module of the present invention and adjust each opening distance, arrangement mode or number to each other is to reach best service efficiency.Therefore, the opening shape of the positive plate of plane field emission lighting module of the present invention does not limit, and is preferably the circular open with equal sizes.
The cathode shape that plane field emission lighting module of the present invention was suitable for is unrestricted, is preferably the ribbon negative electrode, better strip, crooked shape, zigzag or the difform ribbon negative electrode of can be.Negative electrode width of the present invention does not limit, and is preferably width and equates.The arrangement mode of negative electrode of the present invention does not limit, and is preferably the infrabasal plate that is arranged in parallel to each other.
Electron emitter material used in the present invention limits, be preferably a carbon compound (carbon-based material), be more preferred from and be selected from the group that is formed by graphite, diamond, class diamond structures carbon (diamond-like carbon), CNT (carbon nano-tube), carbon 60 and combination thereof.
The light color that plane field emission lighting module of the present invention irradiated is unrestricted, the difference of luminescent material in the visual luminescent layer of the present invention and irradiate the light color of demand.Wherein, luminescent layer of the present invention can be divided most viewing areas, maybe can integrate, with the lighting demand of collocation different color.Luminescent layer material of the present invention does not limit, and is preferably fluorescent bisque or phosphor layer.
Plane field emission lighting module of the present invention comprises also that optionally one has the insulating barrier of pattern, and this insulating barrier is the both sides that are positioned at each negative electrode, so that the usefulness that is electrically insulated to be provided.Insulator shape of the present invention does not have any restriction, can cooperate adjustment, the preferable insulator that can be strip with its arrangement mode according to cathode shape of the present invention.
Plane field emission lighting module of the present invention optionally also includes the lower surface of a conductive layer in this upper substrate, and the material of this conductive layer does not limit, and is preferably transparency conducting layer or metal level.
The optional family's property of plane field emission lighting module of the present invention also include the upper surface that a heat dissipating layer is positioned at this positive plate, the material of this heat dissipating layer does not limit, and is preferably a black coating material.
Also the including most and be arranged in adhesive layer between this upper substrate and this infrabasal plate of the optional family's property of plane field emission lighting module of the present invention to provide an inner confined space in this plane field emission lighting module.This inner confined space optionally is provided with a getter in wherein.
Plane field emission lighting module of the present invention can be applicable to any field that need throw light on, the preferable light source that can be applicable to display or general closed planar formula lighting apparatus.
Description of drawings
Technology contents of the present invention and effect will describe in detail in will describing in detail in the preferred embodiment of following conjunction with figs., wherein:
Fig. 1 is the generalized section of known plane field emission lighting module.
Fig. 2 is the generalized section of the plane field emission lighting module of a preferred embodiment of the present invention.
Fig. 3 is the schematic perspective view of Fig. 2 positive plate.
Fig. 4 is the generalized section of the plane field emission lighting module of the another preferred embodiment of the present invention.
Fig. 5 is the generalized section of the plane field emission lighting module of another preferred embodiment of the present invention.
Fig. 6 is the schematic perspective view of Fig. 5 positive plate.
Fig. 7 is the present invention's positive plate schematic diagram of the plane field emission lighting module of a preferred embodiment again.
Embodiment
Embodiment one
See also Fig. 2, be the generalized section of a preferred embodiment of the present invention plane field emission lighting module 200.The plane field emission lighting module 200 of present embodiment mainly includes the luminescent layer 205 that positive plate 203 and that a upper substrate 201, an infrabasal plate 202, have most grooves 204 is positioned at groove 204 inner surfaces.
As shown in Figure 2, the lower surface of present embodiment upper substrate 201 is formed with indium oxide layer tin (ITO) and is used as conductive layer 206, as the usefulness of the lead of outside connection, makes external power source can see through conductive layer 206 and grants the suitable voltage of positive plate 203.The upper surface of infrabasal plate 202 then is formed with most strip negative electrodes 207, and the upper surface of negative electrode 207 is formed with the usefulness of electron emitter 208 as emitting electrons.In the present embodiment, the material of negative electrode 207 is an elargol, and these negative electrodes 207 are the spacing arrangement parallel to each other to equate each other, and the width of each negative electrode 207 is identical, the material of electron emitter 208 then is a CNT (carbon nano-tube), and these electron emitters 208 can be placed in the groove 204 after assembling.
Please consult Fig. 2 and Fig. 3 simultaneously, Fig. 3 is the stereogram of positive plate 203.In the present embodiment, the groove 204 of positive plate 203 is the long strip type groove of shape of cross section U type, and these grooves 204 are the spacing arrangement parallel to each other to equate each other, and the width of each groove 204 is identical.The positive plate 203 of present embodiment is an aluminium metal sheet.Be formed with heat loss through radiation with black application 209 at the upper surface of this positive plate 203, help positive plate 203 heat radiations, then be formed with the fluorescent bisque as luminescent layer 205 at flute 204 inner surfaces of positive plate 203.
The plane field emission lighting module 200 of present embodiment is after assembling, and electron emitter 208 can be placed in the groove 204.Therefore, when negative electrode 207 is provided respectively with positive plate 203 1 voltages (voltage that offers positive plate 203 is higher than the voltage that offers negative electrode 207), the electronics that electron emitter 208 penetrates can be attracted by the voltage of positive plate 203, and bump forms the luminescent layer 205 of groove 204 inner surfaces, makes luminescent layer 205 be excited to give out light.Giving out light of this luminescent layer 205 can be by groove 204 inner surfaces reflections, penetrate infrabasal plate 202 and are outside finding.Because the shape of cross section of groove 204 is the U type, therefore can break up and reflect giving out light of different directions, make giving out light of field emission lighting module more even.
In addition, can also form an adhesive layer 210 so that an inner confined space to be provided at the upper substrate 201 of field emission lighting module 200 and 202 of infrabasal plates, and add a getter 211 in inner confined space, to improve the vacuum degree of field emission lighting module 200.
Embodiment two
See also Fig. 4, be the generalized section of another preferred embodiment plane field emission lighting module 400 of the present invention.The structure of the plane field emission lighting module 400 of present embodiment is except positive plate 403 and embodiment one are different, and all the other and embodiment one are roughly the same.
As shown in Figure 4, the lower surface of present embodiment upper substrate 401 is formed with indium oxide layer tin (ITO) and is used as conductive layer 406.The upper surface of infrabasal plate 402 then is formed with most strip negative electrodes 407, and the upper surface of negative electrode 407 is formed with the usefulness of electron emitter 408 as emitting electrons.In the present embodiment, the material of negative electrode 407 is an elargol, and these negative electrodes 407 are the spacing arrangement parallel to each other to equate each other, and the width of each negative electrode 407 is identical, the material of electron emitter 408 then is a CNT (carbon nano-tube), and these electron emitters 408 can be placed in the groove 404 after assembling.
As shown in Figure 4, the positive plate 403 of present embodiment is for to have concavo-convex metallic plate, and it is to form with impact style.Same, the groove 404 of the positive plate 403 of present embodiment is the long strip type groove of shape of cross section U type, these grooves 404 are the spacing arrangement parallel to each other to equate each other, and the width of each groove 404 is identical.The positive plate 403 of present embodiment is an aluminium metal sheet.Be formed with heat loss through radiation with black application 409 at the upper surface of this positive plate 403, help positive plate 403 heat radiations, then be formed with the fluorescent bisque as luminescent layer 405 at flute 404 inner surfaces of positive plate 403.The plane field emission lighting module 400 of present embodiment is after assembling, and electron emitter 408 can be placed in the groove 404.
Embodiment three
Please consult Fig. 5 and Fig. 6 simultaneously, Fig. 5 is the generalized section of another preferred embodiment plane field emission lighting module 500 of the present invention, and Fig. 6 is the stereogram of positive plate 503.
As shown in Figure 6, the positive plate 503 of present embodiment has most openings.In the present embodiment, the opening 504 of positive plate 503 is the round opening of shape of cross section U type, the spacing arrangement of these openings 504 to equate, and each opening 504 is big or small identical.The positive plate 503 of present embodiment is an aluminium metal sheet.As shown in Figure 5, the upper surface of this positive plate 503 also can be formed with heat loss through radiation with black application 509, helps positive plate 503 heat radiations, in addition, then is formed with the fluorescent bisque as luminescent layer 505 at opening 504 inner surfaces of positive plate 503.
See also Fig. 5, the lower surface of present embodiment upper substrate 501 is formed with indium oxide layer tin (ITO) and is used as conductive layer 506.The upper surface of present embodiment infrabasal plate 502 then is formed with most discontinuous strip negative electrodes 507, and its position is the opening 504 corresponding to positive plate 503, and the upper surface of negative electrode 507 is formed with electron emitter 508.Therefore, the plane field emission lighting module 500 of present embodiment is after assembling, and electron emitter 508 can be placed in the opening 504.In the present embodiment, the material of negative electrode 507 is an elargol, and the material of electron emitter 508 is a CNT (carbon nano-tube).
Embodiment four
Fig. 7 is another enforcement aspect of the positive plate 703 of plane field emission lighting module of the present invention.As shown in Figure 7, the groove 704 of positive plate 703 is zigzag continuous strip shape, and these grooves 704 are each other with distance arrangement parallel to each other between equating, and the width of each groove 704 is identical, and in the present embodiment, groove 704 shape of cross sections are the U type.The positive plate 703 of present embodiment is when being assembled into plane field emission lighting module, and the shape of negative electrode and position need the groove corresponding to positive plate, and electron emitter is placed in the groove.
The foregoing description only is to give an example for convenience of description, and the interest field that the present invention advocated should be as the criterion so that claim is described certainly, but not only limits to the foregoing description.
Claims (20)
1. a plane field emission lighting module is characterized in that, comprising:
One upper substrate;
One comprise most negative electrodes, with the infrabasal plate of most electron emitters; Wherein, these negative electrodes are positioned at the upper surface of this infrabasal plate, and this electron emitter is positioned on this negative electrode;
One inserts and puts the positive plate between this upper substrate and this infrabasal plate, and the lower surface of this positive plate has most grooves or opening, and is to be placed in these grooves or the opening after these electron emitter assemblings; And
One is positioned at the luminescent layer of this groove or opening inner surface.
2. as claim 1 a described plane field emission lighting module, it is characterized in that, wherein, the shape of cross section of this groove be selected from by V-arrangement, U-shaped, semicircle, arc, trapezoidal, irregular shape, with and the group that formed of combination.
3. as claim 1 a described plane field emission lighting module, it is characterized in that, wherein, the shape of this groove be selected from by strip, crooked shape, zigzag, irregular shape, with and the group that formed of combination.
4. as claim 1 a described plane field emission lighting module, it is characterized in that wherein, the width of this groove equates.
5. as claim 1 a described plane field emission lighting module, it is characterized in that wherein, the spacing of this groove equates.
6. as claim 1 a described plane field emission lighting module, it is characterized in that, wherein, the arrangement parallel to each other of this groove.
7. as claim 1 a described plane field emission lighting module, it is characterized in that, wherein, the shape of cross section of this opening be selected from by V-arrangement, U-shaped, semicircle, arc, trapezoidal, irregular shape, with and the group that formed of combination.
8. as claim 1 a described plane field emission lighting module, it is characterized in that, wherein, this opening be shaped as circle.
9. as claim 1 a described plane field emission lighting module, it is characterized in that wherein, the material of this positive plate is a metal.
10. as claim 1 a described plane field emission lighting module, it is characterized in that wherein, the material of this positive plate is an aluminium.
11., it is characterized in that wherein, the voltage of this positive plate is higher than the voltage of this negative electrode as claim 1 a described plane field emission lighting module.
12., it is characterized in that wherein, this plane field emission lighting module also includes the lower surface of a conductive layer in this upper substrate as claim 11 a described plane field emission lighting module.
13., it is characterized in that wherein, this conductive layer is transparency conducting layer or metal level as claim 12 a described plane field emission lighting module.
14., it is characterized in that wherein, this plane field emission lighting module also includes the upper surface that a heat dissipating layer is positioned at this positive plate as claim 1 a described plane field emission lighting module.
15., it is characterized in that wherein, this heat dissipating layer is a black coating material as claim 14 a described plane field emission lighting module.
16. as claim 1 a described plane field emission lighting module, it is characterized in that, wherein, this plane field emission lighting module also comprises and at least onely is arranged in adhesive layer between this upper substrate and this infrabasal plate to provide an inner confined space in this plane field emission lighting module.
17., it is characterized in that wherein, this plane field emission lighting module comprises that also at least one getter is arranged in this inside confined space as claim 16 a described plane field emission lighting module.
18., it is characterized in that wherein, the material of this negative electrode is a metal as claim 1 a described plane field emission lighting module.
19., it is characterized in that wherein, this electron emitter is nano carbon material, diamond or class diamond as claim 1 a described plane field emission lighting module.
20., it is characterized in that wherein, this luminescent layer is fluorescent bisque or phosphor layer as claim 1 a described plane field emission lighting module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101098229A CN101128073A (en) | 2006-08-16 | 2006-08-16 | Plane field emission lighting module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101098229A CN101128073A (en) | 2006-08-16 | 2006-08-16 | Plane field emission lighting module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101128073A true CN101128073A (en) | 2008-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101098229A Pending CN101128073A (en) | 2006-08-16 | 2006-08-16 | Plane field emission lighting module |
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| Country | Link |
|---|---|
| CN (1) | CN101128073A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037053A (en) * | 2013-03-04 | 2014-09-10 | 海洋王照明科技股份有限公司 | Field emission planar light source |
| CN104037052A (en) * | 2013-03-04 | 2014-09-10 | 海洋王照明科技股份有限公司 | Field emission planar light source |
-
2006
- 2006-08-16 CN CNA2006101098229A patent/CN101128073A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037053A (en) * | 2013-03-04 | 2014-09-10 | 海洋王照明科技股份有限公司 | Field emission planar light source |
| CN104037052A (en) * | 2013-03-04 | 2014-09-10 | 海洋王照明科技股份有限公司 | Field emission planar light source |
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