CN100351986C - Components of display unit, fluorescent faceplate and fluorescent dye - Google Patents
Components of display unit, fluorescent faceplate and fluorescent dye Download PDFInfo
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- CN100351986C CN100351986C CNB2005100665171A CN200510066517A CN100351986C CN 100351986 C CN100351986 C CN 100351986C CN B2005100665171 A CNB2005100665171 A CN B2005100665171A CN 200510066517 A CN200510066517 A CN 200510066517A CN 100351986 C CN100351986 C CN 100351986C
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Abstract
Fluorescent powder combination according to an embodiment of the invention comprises fluorescent powder and additive, where in the content of the additive is 0.1-20 percents of the fluorescent powder by weight, and the material of the additive is selected from energy absorbing material, conduction material or group of combination of the same. Fluorescent powder combination according to another embodiment of the invention comprises fluorescent powder and additive, where in the content of the additive is 2.8ppm-3200ppm, and the material of the additive is selected from energy absorbing material, conduction material or group of combination of the same. Better anti-burning ability is obtained because energy absorbing material and conduction material are mixed in the fluorescent powder combination, which can absorb or conduct excrescent electrical energy and heat energy.
Description
Technical field
The present invention relates to a kind of display unit and fluorescent panel thereof and fluorescent material and form, particularly a kind of cathode ray tube (Cathode Ray Tube, CRT) form by display unit and fluorescent panel thereof and fluorescent material.
Background technology
Because the arrival of information-intensive society, as the display of information media, its demand also increases severely with day, so industry drops into the development of related display with all strength.Wherein, because of cathode-ray tube display has excellent display quality and technology maturation, therefore monopolize the monitor market all the year round.At present general family expenses CRT monitor constantly develops towards large tracts of land and high-resolution, and surpasses the CRT monitor more than 33 inches, is main flow with large-screen projection CRT monitor then.Large-screen projection CRT monitor approximately can be divided into projection CRT monitor and optical fiber type CRT, and the projection CRT monitor is that the image that screen is play is enlarged into large-screen via the optical system projection.
From the above, in order to make the projection enlarged image still possess enough definition and brightness, CRT must adopt electromagnetism boundling (electromagnetic bunch), electromagnetism deflection (electromagneticdeflection) and the fluorescent material (phosphormaterial) of fluorescent lifetime (light emitting time) than weak point.Aspect high brightness, adopt the high voltage accelerated electron, to improve brightness.Aspect resolution, then adopt the fluorescent material of weak point of fluorescent lifetime.Yet the electron beam of above-mentioned high voltage and high flow capacity will cause fluorescent material to burn easily, and make be restricted the useful life of projection CRT.
In order to solve the problem that above-mentioned fluorescent material burns easily, several solutions have been proposed at present.Scheme one: adopt spherical fluorescent material, with the bulk density (packingdensity) that improves fluorescent material strengthening its burn resistance, but the making of spherical fluorescent material layer has suitable difficulty, therefore still can't be useful for production line so far.Scheme two: coating four phosphorous oxide (PO4) or aluminium oxide flame resistant materials such as (Al2O3) on existing fluorescent material layer, but the anti-burning DeGrain of these flame resistant materials.Scheme three: the mode of using circuit design, with the fluorescent material that excites same position of avoiding electric current to continue for a long time, the mode that this kind utilizes circuit design is with the technology such as the United States Patent (USP) the 4th of the situation improving fluorescent material and burn, 032, No. 760, the 4th, 521, No. 720 and the 4th, 198, No. 661 disclosed.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of fluorescent material and form, to increase the burn resistance of fluorescent material.
In addition, another object of the present invention provides a kind of fluorescent panel, and it has long useful life.
In addition, another purpose of the present invention provides a kind of display unit, and it has long useful life.
The present invention proposes a kind of fluorescent material and forms, it comprises fluorescent material and additive (additive), wherein the content of additive is 0.1%～20% of fluorescent material weight, and the material of additive is selected from energy absorbing material (energy absorption material) and electric conducting material (conductive material) and makes up the group that is formed.
The present invention proposes a kind of fluorescent panel (screen panel), and it comprises transparency carrier and fluorescent material layer.Fluorescent material layer is arranged on the transparency carrier, and the material of fluorescent material layer comprises fluorescent material and additive, wherein the content of additive is 0.1%～20% of fluorescent material weight, and the material of additive is selected from the group that energy absorbing material and electric conducting material and combination thereof are formed.
The present invention proposes a kind of display unit, and it comprises fluorescent panel, electron gun (electron gun) and electron beam deflection control module (deflection control module of the electron beam).Wherein, fluorescent panel comprises transparency carrier and is coated on fluorescent material layer on the transparency carrier, and fluorescent material layer comprises fluorescent material and additive, wherein the content of additive is 0.1%～20% of fluorescent material weight, and additive is selected from the group that energy absorbing material, electric conducting material and combination thereof are formed.Electron gun can provide electron beam, on the fluorescent material layer that is radiated at fluorescent panel.Electron beam deflection control module is equipped between electron gun and the fluorescent panel, with the deflection of controlling electron beam.
The present invention proposes a kind of projecting display, and it comprises fluorescent panel, electron gun, electron beam deflection control module, reflecting module and display screen.Wherein, fluorescent panel comprises transparency carrier and is coated on fluorescent material layer on the transparency carrier, and fluorescent material layer comprises fluorescent material and additive, wherein the content of additive is 0.1%～20% of fluorescent material weight, and additive is selected from the group that energy absorbing material, electric conducting material and combination thereof are formed.Electron gun can provide electron beam, on the fluorescent material layer that is radiated at fluorescent panel, and makes fluorescent panel pass through the outside projects images of first light path.Electron beam deflection control module is to be equipped between electron gun and the fluorescent panel, with the deflection of controlling electron beam.Reflecting module is to be equipped on first light path and reflected image.Display screen is to be equipped on second light path of image reflection.
The present invention proposes a kind of fluorescent material and forms, it comprises fluorescent material and additive (additive), wherein the content of additive is 2.8ppm～32000ppm, and the material of additive is selected from energy absorbing material (energy absorption material) and electric conducting material (conductive material) and makes up the group that is formed.
The present invention proposes a kind of fluorescent panel (screen panel), and it comprises transparency carrier and fluorescent material layer.Fluorescent material layer is arranged on the transparency carrier, and the material of fluorescent material layer for example comprises fluorescent material and additive, wherein the content of additive is 2.8ppm～32000ppm, and the material of additive is selected from the group that energy absorbing material and electric conducting material and combination thereof are formed.
The present invention proposes a kind of display unit, and it comprises fluorescent panel, electron gun (electron gun) and electron beam deflection control module (deflection control module of the electron beam).Wherein, fluorescent panel comprises transparency carrier and is coated on fluorescent material layer on the transparency carrier, and fluorescent material layer comprises fluorescent material and additive, and wherein the amount of additive is 2.8ppm～32000ppm, and additive is selected from the group that energy absorbing material, electric conducting material and combination thereof are formed.Electron gun can provide electron beam, on the fluorescent material layer that is radiated at fluorescent panel.Electron beam deflection control module is equipped between electron gun and the fluorescent panel, with the deflection of controlling electron beam.
The present invention proposes a kind of display unit, and it comprises fluorescent panel, electron gun, electron beam deflection control module, reflecting module and display screen.Wherein, fluorescent panel comprises transparency carrier and is coated on fluorescent material layer on the transparency carrier, and fluorescent material layer comprises fluorescent material and additive, and wherein the amount of additive is 2.8ppm～32000ppm, and additive is selected from the group that energy absorbing material, electric conducting material and combination thereof are formed.Electron gun can provide electron beam, on the fluorescent material layer that is radiated at fluorescent panel, and makes fluorescent panel pass through the outside projects images of first light path.Electron beam deflection control module is to be equipped between electron gun and the fluorescent panel, with the deflection of controlling electron beam.Reflecting module is to be equipped on first light path and reflected image.Display screen is to be equipped on second light path of image reflection.
Based on above-mentioned, because the present invention's fluorescent material is mixed with energy absorbing material and electric conducting material in forming, it can or conduct with unnecessary electric energy or heat absorption, therefore has preferable burn resistance.
In addition, because of the present invention's fluorescent panel employing has the fluorescent material composition of absorbing material and electric conducting material, so can improve its useful life.
In addition, because the fluorescent panel of the present invention's display unit adopts the fluorescent material of absorbing material and electric conducting material to form, therefore can improve useful life.
State with other purpose, feature and advantage and can become apparent on the present invention for allowing, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 is the schematic diagram according to the display unit of preferred embodiment of the present invention.
Fig. 2 is the schematic diagram according to the display unit of another preferred embodiment of the present invention.
The main element description of symbols
100,200: display unit
112: electron beam
110: electron gun
120: electron beam deflection control module
130: fluorescent panel
132: transparency carrier
134: fluorescent material layer
136: metallic diaphragm
240: reflecting module
250: display screen
260: the optical compensation module
Embodiment
In order to make the fluorescent material that is used for display unit have preferable burn resistance, the present invention proposes a kind of fluorescent material and forms, it is except including fluorescent material, also in fluorescent material, be mixed with additive, wherein the material of additive is selected from the group that energy absorbing material, electric conducting material and combination thereof are formed, because the additive of being sneaked into can or conduct with unnecessary electric energy or heat absorption, so the present invention's fluorescent material composition has preferable burn resistance.Below narration be to be applied to CRT and projection CRT is that example is to describe it in detail so that the present invention's fluorescent material is formed, but be not to form in order to the fluorescent material that limits the present invention only can be applied among CRT or the projection CRT, other can use the display unit of fluorescent material, for example be plasma display (PDP), Field Emission Display (FED), surface-conduction-electron emission display (Surface-conduction Electron-emitter display, SED) or the like, can also use the present invention's fluorescent material to form.
First embodiment
Please refer to Fig. 1, this figure is the schematic diagram according to the CRT display unit of preferred embodiment of the present invention.CRT display unit 100 for example comprises electron gun 110, electron beam deflection control module 120 and fluorescent panel 130.Wherein, fluorescent panel 130 for example comprises transparency carrier 132 and fluorescent material layer 134, shown in the partial enlarged drawing of Fig. 1.Wherein, fluorescent material layer 134 is arranged on the transparency carrier 132, and the manufacture method of fluorescent material layer 134 for example is to use spraying process (spray coating process), the precipitation method (precipitation process) or other suitable method.In addition, fluorescent material layer 134 comprises fluorescent material and additive, wherein the content of additive is 0.1%～20% of fluorescent material weight, and the material of additive is selected from the group that energy absorbing material and electric conducting material and combination thereof are formed, it can or conduct with unnecessary electric energy or heat absorption, so that fluorescent material layer 134 has preferable burn resistance.In a preferred embodiment, fluorescent panel 130 also comprises metallic diaphragm 136, and metallic diaphragm 136 is covered on the fluorescent material layer 134, collides the secondary electron excessive accumulation that fluorescent material is emitted to avoid electron beam, and causes non-persistent Potential distribution.
In addition, electron gun 110 provides electron beam 112, on the fluorescent material layer 134 that is radiated at fluorescent panel 130.In addition, electron beam deflection control module 120 is equipped between electron gun 110 and the fluorescent panel 130, with the deflection (deflection) of controlling electron beam 112.Electron beam deflection control module 120 is electrostatic deflection control module (control module of the electrostatic deflection), electromagnetism deflection control module (control module of the electromagnetic deflection) or other control module that is fit to, with the deflection of controlling electron beam 112.
In above-mentioned fluorescent panel 130, the material of transparency carrier 132 is glass or other transparent material.In addition, the material of metallic diaphragm 136 is aluminium or other metal material.In addition, the fluorescent material in the fluorescent material layer 134 is selected from red light fluorescent powder, green light fluorescent powder or blue light fluorescent powder.And the additive in the fluorescent material layer 134 is energy absorbing material and electric conducting material, and in a preferred embodiment, the particle size range of additive is between 0.01 micron to 10 microns.And about the Material Selection detailed description of additive as after.
The preferably inorganic energy absorbing material of above-mentioned energy absorbing material, more preferably inorganic UV Absorption material.In a preferred embodiment, inorganic UV Absorption material is selected from the group that titanium dioxide, zinc oxide and combination thereof are formed.What is particularly worth mentioning is that above-mentioned titanium dioxide ultraviolet absorbing material is the titanium dioxide of Detitanium-ore-type (anatase) preferably.
In addition, above-mentioned electric conducting material is inorganic conductive material preferably, more preferably the transparent inorganic electric conducting material.In a preferred embodiment, the transparent inorganic electric conducting material is selected from the group that antimony tin oxide (ATO), indium tin oxide and combination thereof are formed.
Therefore, owing to be mixed with energy absorbing material and electric conducting material in the fluorescent material layer that the present invention's CRT display unit is used, therefore can or conduct with unnecessary electric energy or heat absorption,, thereby can improve the useful life of CRT display unit so that fluorescent material layer has preferable burn resistance.
The present invention's fluorescent material composition can also be applied in the projection CRT display unit, please refer to Fig. 2, and its expression is according to the schematic diagram of the display unit of another preferred embodiment of the present invention.Projection CRT monitor 200 is except above-mentioned CRT, also comprise reflecting module 240 and display screen 250, the electron beam that its electron gun 110 is provided can be radiated on the fluorescent material layer 134 of fluorescent panel 130, and makes fluorescent panel 130 by the outside projects images of first light path.240 of reflecting module are the images that sets (being on the light path of fluorescent panel 130 projections) on first light path and projected in order to reflection.And display screen 250 is to be equipped on second light path that image passed through after being reflected.Reflecting module 240 is a spherical reflector (spherical reflector) or other suitable reflecting module.And display screen 250 is white projection screens.In addition, if raising picture quality, display unit 200 also comprises optical compensation module (optical compensation module) 260, be equipped on the light path between reflecting module 240 and the display screen 250, and optical compensation module 260 for example is revisal lens (correcting lens).Therefore projection CRT display unit 200 exporting large-sized image, and can be improved the image quality of output image by reflecting module 240 and display screen 250 by optical compensation module 260.
Same, in above-mentioned projection CRT display unit 200, its fluorescent panel 130 comprises transparency carrier 132 and fluorescent material layer 134, preferably also comprises metallic diaphragm 136, and is shown in Figure 1 as the front.Particularly, the material of fluorescent material layer 134 comprises fluorescent material and additive, wherein the content of additive is 0.1%～20% of fluorescent material weight, and the material of additive is selected from the group that energy absorbing material, electric conducting material and combination thereof are formed, it can or conduct with unnecessary electric energy or heat absorption, so that fluorescent material layer has preferable burn resistance.And about the detailed material of additive to previous described similar, do not repeat them here.
Because projection CRT display unit can be used the electron beam of high voltage and high flow capacity, thereby the situation of burning of fluorescent material can be more obvious.And fluorescent material provided by the present invention is formed because of having excellent burn resistance matter, so for remarkable lifting effect is arranged in useful life of projection CRT display unit.
Below enumerate anti-the burn characteristic of several examples with explanation the present invention's fluorescent material composition.
Table 1
| Fluorescent material | The additive addition | Particle diameter (micron) | The anti-burning time (hour) | |
| Example 1 | G78 | 1% antimony tin oxide (ATO) | 1 | 18.5 |
| Example 2 | G78 | 1% indium tin oxide (ITO) | 1 | 10 |
| Example 3 | G78 | 1% titanium dioxide | 1 | 8 |
| Comparative example | G78 | Do not add | -- | 3 |
Please refer to table 1, example 1～example 3 and the fluorescent material that comparative example adopted are the green light fluorescent powder (G78) that inferior chemical industry limited company of day (Nichia Corporation) is produced, and example 1 is sneaked into 1% antimony tin oxide (1 micron of particle diameter), example 2 is sneaked into 1% indium tin oxide (1 micron of particle diameter), example 3 is sneaked into 1% titanium dioxide (1 micron of particle diameter), and example 4 is the green light fluorescent powders (G78) that do not add any additive.Can find out significantly that by table 1 when green light fluorescent powder (G78) has when adding antimony tin oxide, indium tin oxide or titanium dioxide, the anti-burning time of green light fluorescent powder (G78) is all than less than the adder height.What deserves to be mentioned is that the green light fluorescent powder that adds antimony tin oxide as shown in Table 1 has preferable burnback resistance, below describe at the particle diameter and the weight of adding antimony tin oxide respectively.
Table 2
| Fluorescent material | The particle diameter (micron) of additive (ATO) | The addition of additive (ATO) | Time (hour) | |
| Example 4 | G78 | 1 | 0.1％ | 5 |
| Example 5 | G78 | 1 | 0.5％ | 10 |
| Example 6 | G78 | 1 | 1％ | 18.5 |
| Example 7 | G78 | 1 | 5％ | 20 |
| Comparative example | G78 | -- | Do not add | 3 |
The fluorescent material of example 4～example 7 and comparative example employings remains the day green light fluorescent powder (G78) produced of inferior chemical industry limited company in the table 2, and the additive that example 4～example 7 is added all is antimony tin oxide (ATO), and the particle diameter of the ATO that is added is all 1 micron, and what each example was different is to be its addition.Can be known by table 2, contain the additive of different additions in the fluorescent material, its anti-burning time is all than less than the adder height.
Table 3
| Fluorescent material | The particle diameter (micron) of additive (ATO) | The addition of additive (ATO) | Time (hour) | |
| Example 8 | G78 | 0.01 | 1％ | 4 |
| Example 7 | G78 | 0.1 | 1％ | 12 |
| Example 10 | G78 | 1 | 1％ | 18.5 |
| Example 11 | G78 | 6 | 1％ | 22 |
| Comparative example | G78 | -- | Do not add | 3 |
The fluorescent material of example 8～example 11 and comparative example employings remains the day green light fluorescent powder (G78) produced of inferior chemical industry limited company in the table 3, and the additive that example 8～example 11 is added all is antimony tin oxide (ATO), and the amount of the ATO that is added is all 1% of fluorescent material weight, and what each example was different is to be its ATO grain size.Can be known by table 3, add the fluorescent material of the additive of different-grain diameter size, its anti-burning time is all than less than the adder height.
Can know that by above-mentioned each example sneaking into additive in fluorescent material really can be so that the anti-burning time raising of fluorescent material.And because the burnback resistance of general green light fluorescent powder is poorer than ruddiness, blue light fluorescent powder, therefore, can improve burnback resistance effectively if add additive, add additive in ruddiness, blue light fluorescent powder certainly and also can improve its burnback resistance in green light fluorescent powder.
Second embodiment
In a second embodiment, the fluorescent material that is adopted is formed similar to first embodiment, and difference is the content and the particle diameter of the additive in the fluorescent material composition, and details are as follows.
The fluorescent material of second embodiment is formed and is comprised fluorescent material and additive, and wherein the amount of additive is 2.8ppm～32000ppm, and the material of additive is to be selected from the group that energy absorbing material, electric conducting material and combination thereof are formed equally.In addition, the particle diameter of additive for example is less than 100nm.In addition, fluorescent material is selected from red light fluorescent powder, green light fluorescent powder or blue light fluorescent powder.
In a preferred embodiment, if above-mentioned additive is to adopt energy absorbing material, it for example is to be selected from titanium dioxide with zinc oxide and make up the group that is formed, and the amount of this energy absorbing material is 45ppm～383ppm.
In another preferred embodiment, if above-mentioned additive is to adopt electric conducting material, it for example is a transparent conductive material, and for example is to be selected from antimony tin oxide (ATO) and indium tin oxide (ITO) and to make up the group that is formed.Particularly, if additive is to adopt ATO, preferably 2.8ppm～26.8ppm of its content then.If additive is to adopt ITO, its content is 1600ppm～32000ppm preferably.
In a second embodiment, because the hybrid mode of fluorescent material and additive and the mode of first embodiment are inequality, and the additive particle diameter of size ratio first embodiment of employed additive is little many, and the additive content during therefore the fluorescent material of second embodiment is formed is relatively low.And no matter be fluorescent material composition or the fluorescent material of second embodiment composition of first embodiment, all have excellent anti-burning characteristic.
More detailed explanation is, in first embodiment, the hybrid mode of fluorescent material and additive be with two materials directly in the mechanical agitation mode with two material mixing, and the particle diameter that is used for the additive of first embodiment is between 0.01 micron to 10 microns.
And in a second embodiment, be to prepare earlier after additive mud liquid and the fluorescent material mud liquid, again both are mixed.Grind and become the powder of particle diameter and the preparation method of additive mud liquid is the additive (for example being 0.01～10 micron) that will have greater particle size earlier less than 100nm, these powders and liquid are mixed into the have special ratios mud liquid of (for example being more than the 10000ppm) afterwards, wherein above-mentioned liquid for example is the mixed liquor of water and diethylamine (diethylamine) again.And the preparation method of fluorescent material mud liquid is mixed into mud liquid with fluorescent material and liquid, and wherein above-mentioned liquid for example is the mixed liquor of water and potassium silicate.
Both mix forming mixing mud with additive mud liquid and fluorescent material mud liquid, and after being coated in this mixing mud on the substrate, promptly carry out content analysis, and it is to utilize coupling plasma atomic radiations spectra methods (ICP-AES) to carry out check and analysis.Analysis result is that the content that remains in the additive powder on the fluorescent material is 2.8ppm～32000ppm approximately.
Afterwards, the fluorescent material composition that will contain 2.8ppm～32000ppm additive resists to burn to be tested, even found that the additive content in fluorescent material is formed 2.8ppm～32000ppm is only arranged, but still has suitable anti-burning characteristic.
Below exemplifying several examples, with the detailed description second embodiment of the invention, but is not in order to limit the present invention.
Table 4
| TiO 2 | ATO | ITO |
| Fluorescent material | Addition (ppm) | Residual quantity (ppm) | Addition (ppm) | Residual quantity (ppm) | Addition (ppm) | Residual quantity (ppm) |
| Red | 10000 | 45 | 10000 | 2.8 | 50000 | 25700 |
| Green | 150000 | 383 | 10000 | 26.8 | 100000 | 32000 |
| Blue | 10000 | 133 | 10000 | 5.6 | 50000 | 1600 |
Table 5
| Fluorescent material | The anti-burning time when not containing additive (hour) | Contain TiO 2The anti-burning time (hour) | Contain ATO the anti-burning time (hour) | Contain ITO the anti-burning time (hour) |
| Red | 3 (it is serious to burn trace) | 3 (it is slight to burn trace) | 3 (it is slight to burn trace) | 3 (it is slight to burn trace) |
| Green | 5.7 | 6 | 14.5 | 8 |
| Blue | 7.5 | 14.2 | 16 | 12.6 |
Listed some examples in table 4, it is included in and has added the above additive (TiO of 10000ppm in the red, green, blue fluorescent material respectively
2, ATO, ITO), and the amount of the additive of measured final residual on fluorescent material.Resulting anti-sintering really after table 5 row showed the anti-burning test of the fluorescent material example do that contains residual quantity in the his-and-hers watches 4.By table 4, table 5 as can be known, contain the 2.8ppm～fluorescent material ratio of components of 32000ppm additive and do not contain the fluorescent material of additive, have anti-characteristic of burning really.
What deserves to be mentioned is, because the particle diameter of the additive of second embodiment (100nm is following) is Comparatively speaking less with the particle diameter (7～11 microns) of fluorescent material, and the mode of mixing with fluorescent material is not directly to mix in the mechanical agitation mode, therefore in a second embodiment, may have part additive powder in the mixed process of additive and fluorescent material and run off, thereby make that the quantitative change of the additive powder of final residual on fluorescent material is few.And, because red, green, blue phosphor material powder itself and particle size also be not quite similar, so also difference to some extent of the amount that remains in the additive on the red, green, blue emitting phosphor.
Same, the fluorescent material composition of second embodiment of the invention also can be applicable in fluorescent panel and the display unit as first embodiment.That is to say, above-mentioned fluorescent material is formed to be coated on the substrate can constitute fluorescent panel.And this fluorescent panel and electron gun and the collocation of electron beam deflection control module can constitute display unit.If add reflecting module and display screen, promptly constitute the projection CRT monitor.The details of the composition member of each device is as described in first embodiment.
In sum, the present invention's display unit and fluorescent panel thereof and fluorescent material composition has following advantage:
One, compare with the fluorescent material that does not have additive, the present invention's fluorescent material composition has excellent burn resistance.
Two, adopt extra coating four phosphorous oxide (PO with known technology
4) or aluminium oxide (Al
2O
3) mode compare, the present invention's fluorescent panel only needs to add 0.1%～20% or the additive of 2.8ppm～32000ppm when the coating fluorescent material layer, it not only can increase useful life, also can shorten production process.
Three, adopt the mode that scans that changes electron beam to compare with known technology, can improve the useful life of fluorescent material, the present invention's display unit adopts the fluorescent material with additive not only need not become the mode that scans of electron beam, can also improve useful life.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any person of ordinary skill in the field, without departing from the spirit and scope of the invention; when can doing a little change and improvement, so the present invention's protection range is as the criterion when the scope with claim.
Claims (8)
1. display unit is characterized in that comprising:
Fluorescent panel, comprise transparency carrier and be coated on fluorescent material layer on this transparency carrier, and this fluorescent material layer comprises fluorescent material and additive, wherein the content of this additive is 0.1%～20% of this fluorescent material weight, and this additive is selected from the group that inorganic energy absorbing material, inorganic conductive material and combination thereof are formed, and this additive is a graininess;
Electron gun provides electron beam, on the fluorescent material layer that is radiated at this fluorescent panel; And
Electron beam deflection control module is equipped between this electron gun and this fluorescent panel, to control the deflection of this electron beam.
2. the display unit according to claim 1 is characterized in that wherein this inorganic energy absorbing material comprises the UV Absorption material.
3. the display unit according to claim 1 is characterized in that this inorganic conductive material comprises transparent conductive material.
4. the display unit according to claim 1, the particle size range that it is characterized in that this additive is between 0.01 micron to 10 microns.
5. display unit is characterized in that comprising:
Fluorescent panel, comprise transparency carrier and be coated on fluorescent material layer on this transparency carrier, and this fluorescent material layer comprises fluorescent material and additive, wherein the content of this additive is 0.1%～20% of this fluorescent material weight, and this additive is selected from the group that inorganic energy absorbing material, inorganic conductive material and combination thereof are formed, and this additive is a graininess;
Electron gun provides electron beam, on the fluorescent material layer that is radiated at this fluorescent panel, and makes this fluorescent panel by the outside projects images of first light path;
Electron beam deflection control module is equipped between this electron gun and this fluorescent panel, to control the deflection of this electron beam;
Reflecting module is equipped on this first light path and reflects this image; And
Display screen is equipped on second light path of this image reflection.
6. the display unit according to claim 5 is characterized in that this inorganic energy absorbing material comprises the UV Absorption material.
7. the display unit according to claim 5 is characterized in that this inorganic conductive material comprises transparent conductive material.
8. the display unit according to claim 5, the particle size range that it is characterized in that this additive is between 0.01 micron to 10 microns.
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|---|---|---|---|
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| CN200410038173.9 | 2004-05-11 | ||
| CNB2005100665171A CN100351986C (en) | 2004-05-11 | 2005-04-27 | Components of display unit, fluorescent faceplate and fluorescent dye |
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| CNA2007101626065A Division CN101150033A (en) | 2004-05-11 | 2005-04-27 | Display device |
| CN 200710126466 Division CN101085917A (en) | 2004-05-11 | 2005-04-27 | Display device, fluorescent panel and fluorescent powder component of the same |
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| CN100351986C true CN100351986C (en) | 2007-11-28 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073041A (en) * | 1991-11-20 | 1993-06-09 | 三星电管株式会社 | Emitting far-infrared cathode ray tube |
| CN1082090A (en) * | 1993-08-06 | 1994-02-16 | 上海跃龙有色金属有限公司 | High-performance green phosphate phosphor and preparation method thereof |
| CN1186101A (en) * | 1996-12-26 | 1998-07-01 | 中国科学院长春物理研究所 | Preparation of anti-ageing film for electroluminescent powder |
-
2005
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073041A (en) * | 1991-11-20 | 1993-06-09 | 三星电管株式会社 | Emitting far-infrared cathode ray tube |
| CN1082090A (en) * | 1993-08-06 | 1994-02-16 | 上海跃龙有色金属有限公司 | High-performance green phosphate phosphor and preparation method thereof |
| CN1186101A (en) * | 1996-12-26 | 1998-07-01 | 中国科学院长春物理研究所 | Preparation of anti-ageing film for electroluminescent powder |
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