CN101325146A - Electrode capable of being used as field emission electron source as well as panel and light source element thereof - Google Patents
Electrode capable of being used as field emission electron source as well as panel and light source element thereof Download PDFInfo
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- CN101325146A CN101325146A CNA2007101084358A CN200710108435A CN101325146A CN 101325146 A CN101325146 A CN 101325146A CN A2007101084358 A CNA2007101084358 A CN A2007101084358A CN 200710108435 A CN200710108435 A CN 200710108435A CN 101325146 A CN101325146 A CN 101325146A
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Abstract
The invention relates to an electrode used as an electron source for field emission, and a light source panel and a light source element thereof. A plurality of electronically conducting emitters made from an electron emission source material and an electric conduction material are formed on a lower substrate of the electrode, so that the electrode can also be used as the field emission electron source other than a cathode and a grid electrode, resulting in simplified structure, simplified manufacturing process, and improved brightness and uniformity of the light source panel for the field emission.
Description
Technical field
The present invention relates to a kind of electrode and light source panel and light source component that can be used as field emitting electronic source.
Background technology
In present display technology field, generally with fluorescent tube, as: cold cathode fluorescent lamp (CCFL), HCFL (HCFL) or light-emitting diode (LED) are as source backlight, yet, under the technological break-through of panel technology lifting and processing procedure enlarged areas, the development of giant display has been inevitable trend.Again, for giant display, if it uses the words that fluorescent tube is run counter to the light source, doubts such as the not strong or mercury pollution of structure are then arranged, yet, if point-source of lights such as its application light-emitting diode then have the doubt that is difficult for evenly diffusing into area source, so need many blooming pieces so that uniform area light source to be provided with as source backlight.Therefore, develop at present and with structure strong and luminous uniform field emission panel as the technology of backlight.
The principle of luminosity of field emission light source panel mainly is to utilize grid to apply the emission of voltage with electron source on the control infrabasal plate, and electrons emitted is subjected to the attraction of voltage on the upper substrate and quicken to upper substrate, bombarding the fluorescent material that is coated with to the upper substrate, send radiance with the fluorescence excitation material thereby make fluorescent material absorb the portion of energy that electronics carries.
Yet in the prior art, the grid of field emission light source panel and electron conduction emitter need be made respectively and increase field emission light source panel production process, and so cause complicated processing procedure, the disappearance that lower process rate and production capacity are not high.
Summary of the invention
A purpose of the present invention is to provide a kind of electrode and light source panel and light source component as field emitting electronic source, so that can simplified structure.
Another object of the present invention is that a kind of electrode and light source panel and light source component as field emitting electronic source is being provided, so that can increase the brightness and the uniformity of field emission light source element.
For reaching above-mentioned purpose, the invention provides a kind of field emission light source panel, comprising: a upper substrate, an infrabasal plate and a separation material.Form an one deck fluorescent material and an anode on the upper substrate; Infrabasal plate is corresponding upper substrate setting, forms most conduction emitters on the infrabasal plate; Separation material is the periphery setting of corresponding upper substrate and infrabasal plate; Wherein, the conduction emitter is the mixture of an electron source material and an electric conducting material.
For reaching above-mentioned purpose, the present invention provides a kind of field emission light source element in addition, comprising: a upper substrate, an infrabasal plate, a separation material and a driver element.Form an one deck fluorescent material and an anode on the upper substrate; Infrabasal plate is corresponding upper substrate setting, forms most conduction emitters on the infrabasal plate; Separation material is the periphery setting of corresponding upper substrate and infrabasal plate; Driver element is to electrically connect the conduction emitter; Wherein, the conduction emitter is the mixture of an electron source material and an electric conducting material.
The shape and structure indefinite of above-mentioned upper substrate and infrabasal plate, so be preferably flat board, and upper substrate is more preferred from the transparent plate that comprises a fluorescent material, makes the material indefinite of separation material, and it can be the material of glass or polyamide (Polyimide) or other vacuum-resistant or high pressure.
The production method indefinite of above-mentioned conduction emitter so is preferably with wire mark or ink-jetting style and makes, and secondly, the profile of above-mentioned conduction emitter is indefinite also, so is preferably strip.Above-mentioned electron source material can be the lower material of arbitrary work function, as: silicon, metal or carbon-based material, and be preferably polysilicon, molybdenum, niobium, tungsten, diamond film, CNT (carbon nano-tube) or graphite etc.Above-mentioned electric conducting material is a metal, as: silver, gold or nickel.
Above-mentioned conduction emitter can receive the voltage of plurality of drive signal with control conduction emitter, when the voltage of drive signal control conduction emitter is a high voltage, this conduction emitter promptly as a grid so that the contiguous signal controlling voltage that is driven is that the electric field attracts that the conduction emitter of a low-voltage is subjected to it is sent at least one electronics, therefore, point at one time, the voltage of adjacent conductive emitter is different, and its with the alternating voltage of control adjacent conductive emitter at height, it is preferable changing current potential and alternately send electronics in the different time points that continues between low-voltage.
Above-mentioned field emission light source element can be via a power-supply unit that electrically connects driver element providing a power supply, and can be via being electrically connected at a voltage conversion unit between infrabasal plate and the driver element with the voltage of transition drive signal.
Therefore, field emission light source element of the present invention forms most the conduction emitters of being made by the mixture of an electron source material and an electric conducting material on its infrabasal plate, so that it is except can be used as grid, also can be used as field emitting electronic source, thereby simplified structure and processing procedure, and increase its brightness and uniformity.
Description of drawings
Fig. 1 be the present invention's first preferred embodiment the field emission light source element be the system Organization Chart;
Fig. 2 is the field emission light source panel cutaway view of the present invention's first preferred embodiment;
Fig. 3 is the schematic diagram of circuit electronic signal of the field emission light source element of the present invention's first preferred embodiment.
[main element symbol description]
Field emission light source element 1 field emission light source panel 11 driver elements 12
Power-supply unit 13 voltage conversion units 14 upper substrates 111
Embodiment
About a preferred embodiment of the present invention, please refer to Fig. 1 and Fig. 2.
At first, please refer to Fig. 1, as shown in FIG., field emission light source element 1 comprises a field emission light source panel 11, a driver element 12, a power-supply unit 13 and a voltage conversion unit 14.Power-supply unit 13 electrically connects driver element 12, and voltage conversion unit 14 is electrically connected between field emission light source panel 11 and the driver element 12.
Please in the lump with reference to figure 2, it shows the profile at II ' the line segment place of corresponding diagram 1 field emission light source panel 11 in addition.As shown in FIG., field emission light source panel 11 mainly is made of a upper substrate 111, an infrabasal plate 112 and a clearance layer 113, wherein pollute or damage infrabasal plate 112 to prevent impurity molecule for the low-pressure state near vacuum in the space, and in the present embodiment, air pressure maintains below the 10-6torr.
Form a transparent conducting plate on the upper substrate 111 of present embodiment, as: indium tin oxide (Indium Tin Oxide, ITO) with as an anode, and be applied in a positive voltage, then, be formed with one deck fluorescent material 114 on the upper substrate 111, the composition of fluorescent material 114 can be high voltage fluorescent material or low-voltage fluorescent material, its differences is different at luminous operating voltage height, therefore, when fluorescent material 114 was subjected to having electron bombard above the operating voltage energy, it was excited and sends radiance, and the fluorescent material 114 of present embodiment is to send white light.
The infrabasal plate 112 of present embodiment is a glass substrate, be formed with a plurality of conduction emitters 115 on it, it uses an electron source material to make, as: a CNT (carbon nano-tube) and an electric conducting material, as: a silver powder, add that (ethyl cellulose EC) and the mixed slurry of sesame oil brain (terpineol), and sees through fabrography and forms its strip outward appearance at infrabasal plate 112 vinyl cellulose.
The clearance layer 113 of present embodiment is good, not outgas and the good polyamide of involution of mechanical strength, and it is kept has a spacing and keep therebetween low pressure between upper substrate 111 and the infrabasal plate 112.
Secondly, please refer to the running of Fig. 3 with the conduction emitter of further understanding present embodiment, Fig. 3 shows the electronic signal schematic diagram of present embodiment.
In the present embodiment, driver element 12 produces one group of strange, even drive signal (ODD, EVEN) in correspondence with each other according to a frequency signal CLK.Strange, the even drive signal of present embodiment also is the square wave in a high reference voltage and a low reference voltage alternate cycles, and cycle and frequency strange, even drive signal are identical, but has a phase difference between it, and the phase difference of present embodiment is 180 degree, and the voltage differences that high reference voltage strange, even drive signal reaches low reference voltage is about 5 volts.
Then, driver element 12 exports strange, even drive signal to voltage conversion unit 14 via A, B output respectively, with by voltage conversion unit 14 with the processing of boosting of strange, even drive signal, so that strange, the high reference voltage of even drive signal and the voltage differences of low reference voltage are amplified in about 200 volts.Afterwards, strange, the even drive signal after voltage conversion unit 14 will boost is via the conduction emitter 115 of two leads input field emission light source panels 11.
One end of the odd number row conduction emitter 115 of present embodiment is to be electrical connected, and an end of even numbers row conduction emitter 115 is to be electrical connected, and it is to receive above-mentioned strange, even drive signal respectively.Because phase difference strange, even drive signal, and make that odd number row conduction emitter 115 is to have about 200 volts voltage differences with even numbers row conduction emitter 115 on the same time point.
When strange drive signal was high reference voltage for the low even drive signal of reference voltage, the voltage on the odd number row conduction emitter 115 was high reference voltage for the voltage on low reference voltage and the even numbers row conduction emitter 115.At this moment, produce between odd number row conduction emitter 115 and the even numbers row conduction emitter 115 strong electric field and and then make odd number row conduct electricity emitter 115 to send a plurality of electronics, that is, odd number row conduction emitter 115 is as field emitting electronic source, and even numbers row conduction emitter 115 is as grid.Therefore and fluorescence excitation material 114 sends radiance the positive voltage that the electronics that odd number row conduction emitter 115 sends is subjected to upper substrate 111 attracts and the fluorescent material 114 of bombardment on it.
Yet, at next time point, when strange drive signal for the even drive signal of high reference voltage during for low reference voltage, the voltage on the odd number row conduction emitter 115 is that the voltage on high reference voltage and the even numbers row conduction emitter 115 is low reference voltage.At this moment, even numbers row conduction emitter 115 be subjected to its with odd number row conduction emitter 115 between strong electric field attraction and send a plurality of electronics so that the fluorescent material of its bombardment 114 is luminous.
By learning in above-mentioned, field emission light source element of the present invention sees through the conduction emitter, so that it is except that can be used as grid, also can be used as field emitting electronic source, and in the production process of field emission light source element, do not need to make respectively the structure of grid and field emitting electronic source, so simplified structure and processing procedure and increase the brightness and the uniformity of field emission light source panel.
The foregoing description is only given 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 (19)
1. field emission light source panel is characterized in that comprising:
One upper substrate forms an one deck fluorescent material and an anode on it;
One infrabasal plate is to should the upper substrate setting, forms most conduction emitters on this infrabasal plate; And
One separation material, it is to should upper substrate and the periphery setting of this infrabasal plate;
Wherein, this conduction emitter mixture that is an electron source material and an electric conducting material.
2. field emission light source panel as claimed in claim 1 is characterized in that: this conduction emitter is a strip.
3. field emission light source panel as claimed in claim 1 is characterized in that: described adjacent conductive emitter alternately sends most electronics.
4. field emission light source panel as claimed in claim 1 is characterized in that: this electron source material is silicon, metal, carbon-based material, polysilicon, molybdenum, niobium, tungsten, graphite, diamond film, CNT (carbon nano-tube) or its combination.
5. field emission light source panel as claimed in claim 1 is characterized in that: this electric conducting material is silver, gold or nickel.
6. field emission light source panel as claimed in claim 1 is characterized in that: this conduction emitter is to receive the plurality of drive signal to control the voltage on it.
7. field emission light source panel as claimed in claim 1 is characterized in that: same time point, the voltage of adjacent conductive emitter are different.
8. field emission light source panel as claimed in claim 1 is characterized in that: when the voltage on this conduction emitter was a low-voltage, this conduction emitter sent at least one electronics.
9. field emission light source element is characterized in that comprising:
One upper substrate forms an one deck fluorescent material and an anode on it;
One infrabasal plate is to should the upper substrate setting, forms most conduction emitters on this infrabasal plate;
One separation material, it is to should upper substrate and the periphery setting of this infrabasal plate; And
One driver element is to electrically connect this conduction conduction emitter;
Wherein, this conduction emitter mixture that is an electron source material and an electric conducting material.
10. field emission light source element as claimed in claim 9 is characterized in that: this conduction emitter is a strip.
11. field emission light source element as claimed in claim 9 is characterized in that: the adjacent conductive emitter alternately sends most electronics.
12. field emission light source element as claimed in claim 9 is characterized in that: this electron source material is silicon, metal, carbon-based material, polysilicon, molybdenum, niobium, tungsten, graphite, diamond film, CNT (carbon nano-tube) or its combination.
13. field emission light source element as claimed in claim 9 is characterized in that: this electric conducting material is silver, gold or nickel.
14. field emission light source element as claimed in claim 9 is characterized in that: this conduction emitter is to receive the plurality of drive signal to control the voltage on it.
15. field emission light source element as claimed in claim 9 is characterized in that: described same time point, the voltage of adjacent conductive emitter are different.
16. field emission light source element as claimed in claim 9 is characterized in that: when the voltage on this conduction emitter was a low-voltage, this conduction emitter sent at least one electronics.
17. field emission light source element as claimed in claim 9 is characterized in that: also comprising a power-supply unit, is to electrically connect this driver element so that a power supply to be provided.
18. field emission light source element as claimed in claim 9 is characterized in that: also comprise a voltage conversion unit, it is to be electrically connected between this infrabasal plate and this driver element with changing voltage.
19. field emission light source element as claimed in claim 9 is characterized in that: this driver element provides the plurality of drive signal to conduct electricity emitter to this according to a frequency signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101084358A CN101325146A (en) | 2007-06-14 | 2007-06-14 | Electrode capable of being used as field emission electron source as well as panel and light source element thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101084358A CN101325146A (en) | 2007-06-14 | 2007-06-14 | Electrode capable of being used as field emission electron source as well as panel and light source element thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101325146A true CN101325146A (en) | 2008-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101084358A Pending CN101325146A (en) | 2007-06-14 | 2007-06-14 | Electrode capable of being used as field emission electron source as well as panel and light source element thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101325146A (en) |
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2007
- 2007-06-14 CN CNA2007101084358A patent/CN101325146A/en active Pending
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Open date: 20081217 |