CN1134968A - Anti-static coating material for information displaying device - Google Patents
Anti-static coating material for information displaying device Download PDFInfo
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- CN1134968A CN1134968A CN 95105420 CN95105420A CN1134968A CN 1134968 A CN1134968 A CN 1134968A CN 95105420 CN95105420 CN 95105420 CN 95105420 A CN95105420 A CN 95105420A CN 1134968 A CN1134968 A CN 1134968A
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- coating material
- static coating
- display screen
- information display
- solvent
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- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
A solvent is added into the traditional antielectrostatic coating material (such as: antimong doped tin oxide). The solvent is soluble in water and alcohol, its evaporation point is higher than that of water and its solubitity to oily dirt is better than that of water. Sovents possessing these characteristics include ethylene glycol, dimethyl containing organic solvent and its derivatives. When the antielectrostatic coating material is used to make display screen, it can reduce the contaminants apparently.
Description
The present invention relates to a kind of anti-static coating material of information display, particularly a kind of anti-static coating material that the interpolation solvent forms in traditional anti-static coating material (as: antimony oozes stannic oxide antimony doped tinoxide).
The cathode ray tube (CRT) of general information indicating meter is all worked under high-voltage state, very easily on glass matter CRT display screen, accumulate static charge, form electrostatic effect, this electrostatic effect will make the display screen of this cathode tube very easily adsorb dust and airborne dirt, so, with the picture quality that reduces on this CRT display screen.In addition, when the user touched the display screen of this cathode tube, the user will be because of accumulating the discharge process of static charge on the display screen, and experience shocked by electricity uncomfortable.When if the discharge process of this static charge occurs on the production line operation, more will have influence on operator's the job morale and the quality of production.Equally, in the out of Memory indicating meter on the employed display screen, as: plasma discharge display screen (plasma discharge screen, be called for short PDP), vacuum fluorescent display screen (vacuum florescent screen) and gas panel (gas dischargescreen) etc., also have problem as previously mentioned.
In addition, why can accumulate static charge on the general information display panel, main because its glass matter screen is non-conductive.The tradition anti-static coating material mainly is with semiconductor type coating material (as: antimony oozes stannic oxide antimony doped tin oxide), water and an organic solvent (organic solvent, as: ethanol ethanol or Virahol isopropanol) mix, yet, unfortunately, be coated with the made information display of this kind anti-static coating material, but face many problems during fabrication, for the dirt on the information display screen (as: dust and when cleaning this panel residual brush body dirt) sensitivity, very easily adsorb this type of dirt mainly due to this kind antistatic coating.For example: when making and assembling this information display display screen, though this display screen cleans the still frequent remaining greasy dirt washmarking (water mark) that has on it.These residue in dirt on this information display display screen (as: greasy dirt, washmarking, dust and when cleaning this panel residual brush body dirt), will reduce the picture quality of this display screen.
Supervise on aforementioned conventional information display display screen and can accumulate static charge, very easily after cleaning, still frequent residual dirt (as: greasy dirt, washmarking, dust and when cleaning this display screen residual brush body dirt), reduce the picture quality of display screen, and in design and making, derive problems, and the present invention has been proposed.
Purpose of the present invention is to study and invents out a kind of information display anti-static coating material.
For achieving the above object, the anti-static coating material that the present invention proposes comprises by the semi-conductor type coating material, the anti-static coating material that (as: antimony oozes stannic oxide) and organic solvent mix, it is characterized in that, add a solvent of 5～25% weight ratios in the described anti-static coating material again, it is higher and for the solvability of the dirty thing of the oil characteristic bigger than water than water that this solvent possesses water soluble and alcohol, volatilization point, can be ethylene glycol, contain the organic solvent and the derivative thereof of dimethyl group.
Anti-static coating material of the present invention can be coated on the outer surface of display screen of information display, and the inner surface of this display screen scribbles fluorescent layer; Described information display can be an effect emission display screen, liquid crystal display, plasma discharge display screen, vacuum fluorescent display screen or gas panel.
Use the made information display display screen of anti-static coating material of the present invention, possesses high-caliber antistatic effect, be infected with the situation of (as: washmarking, dust and when cleaning this display screen residual brush body dirt) display screen to reduce dirt significantly, especially oily dirt.
Fig. 1 is applied to longitudinal section synoptic diagram on a kind of CRT display screen with anti-static coating material of the present invention;
Fig. 2 is applied to partial cutaway schematic on a kind of flat-faced screen of information display with anti-static coating material of the present invention.
Below the present invention is described in detail with reference to the accompanying drawings.
Figure 1 shows that a kind of cathode tube, this cathode tube 10 mainly comprises a sealing glass body 12, this body 12 is provided with a display screen 14, pars infundibularis 16 in the middle of one tube neck 18 and, these glass matter display screen 14 outer surfaces scribble the anti-quiet coating material layer 44 of the present invention, inner surface is coated with fluorescent layer 24, this fluorescent layer 24 comprises a plurality of fluorescence picture points that can send fluorescence respectively, when the fluorescence picture point of color electric beam focusing on these glass matter display screen 14 inner surfaces, this picture point will have been sent coloured light, with display image on this display screen 14, in the tube neck 18 of these cathode tube 10 sealing glass bodys 12, then be provided with a plurality of electron beam gun 20 that are linear array, to produce a plurality of electron beams 22 that focus on these glass matter display screen 12 fluorescent layers 24, this electron beam 22 will be along level and vertical direction deflection behind magnetic deflection coil (magnetic deflection yoke), and focus on this fluorescent layer 24.
Figure 2 shows that the partial cutaway schematic on the information display display screen, the section of this glass matter display screen 40 is plane (or arc surfaced), and its inner surface is coated with a fluorescent layer 42, and its outer surface then is coated with an anti-static coating material layer 44.Anti-static coating material of the present invention is not limited to be applied on the CRT display screen, also may be used on employed display screen in the out of Memory indicating meter, as: an effect emission display screen (field emissiondisplay, abbreviation FED), liquid crystal display (liquid crystal display, abbreviation LCD), on the outer surface of plasma discharge display screen (plasma discharge screen is called for short PDP), vacuum fluorescent display screen (vacuum florescent screen) and gas panel (gas discharge screen) etc.The fluorescent layer 42 that is coated with on the inner surface of this glass matter display screen 40, be a plurality of each intervals and be point-like (dots) or fluorescent layer that banded (stripes) distributes, can be equipped with a conducting element on the outer surface of this glass matter display screen 40, this glass matter display screen 40 is connected to the ground terminal of a graphite linings by this conducting element.
Below explanation is made anti-static coating material of the present invention and is applied it to process on the glass matter display screen.At first semiconductor type coating material (as: antimony oozes stannic oxide antimonydoped tin oxide) and an organic solvent (organic solvent, as: ethanol ethanol or Virahol isopropanol) are mixed into anti-static coating material.In this anti-static coating material that mixes, add a solvent of 5～20% weight ratios then, this solvent can be ethylene glycol (ethylene glycol), the organic solvent (dimethyl group) and the derivative thereof that contain the dimethyl group, these solvents are owing to possess water soluble and alcohol, volatilization point than water high and for the solvability of the dirty thing of oil than characteristics such as water are big, so, be used as the interpolation solvent in the anti-static coating material of the present invention, the derivative that wherein is added into ethylene glycol (ethylene glycol) solvent in this anti-static coating material can be an ethylene glycol [1,2] diacetate esters (ethylene glycol diacetate), ethylene glycol dibutyl ether (ethylene glycol dibutyl ether), glycol monomethyl alkane ether (ethyleneglycol monoalkyl ether) and glycol monomethyl alkane ethylhexoate (ethyleneglycol monoalkyl ethyl ether acetate) equal solvent, adding organic solvent (dimethyl group) derivative that contains the dimethyl group in this anti-static coating material to then can be dimethyl formamide (dimethyl formamide), dimethyl sulfoxide (DMSO) (dime-thyl sulfoxide) and N,N-DIMETHYLACETAMIDE (dimethyl acetamide) equal solvent.At last, with aforementioned by semi-conductor type coating material (as: antimony oozes stannic oxide antimonydoped tin oxide), organic solvent (organic solvent, as ethanol etha-nol or Virahol isopropanol) with ethylene glycol (ethylene glycol) or contain the anti-static coating material that organic solvent (or derivatives thereof) the institute uniform mixing of dimethyl group forms, mode with dip-coating or spraying is uniformly applied on the outer surface of information display display screen, forms an antistatic coating layer 44.
By as can be known aforementioned, among the present invention, be used the solvent that is added in this anti-static coating material, all possess water soluble and alcohol, volatilization point than water high and for the solvability of the dirty thing of oil than characteristics such as water are big, so this solvent is not limited to ethylene glycol (ethyleneglycol), contains organic solvent of dimethyl group (dimethyl group) and derivative thereof.
In the present invention, when behind this anti-static coating material of coating on the information display display screen, for issuable washmarking in the cleaning process of manufacturing this information display, will be more insensitive, meaning promptly is difficult for producing washmarking on display screen.In addition, behind this anti-static coating material of coating on the information display display screen, for the dirt in manufacturing process, as: dust and when cleaning this screen residual brush body dirt, also more insensitive, meaning is to be difficult for these dirts of absorption on the display screen, thereby makes the information display display screen possess high-caliber image effect.
In addition, because anti-static coating material of the present invention is compared easier evenly being applied on the information display display screen with traditional coating material, and the solvent that is added in this anti-static coating material possess water soluble and alcohol, volatilization point than water high and for the dirty thing solvability of oil than characteristics such as water are big, residual washmarking and oily dirt on the decomposed information display panel easily, therefore can effectively increase product percent of pass, and then improve the output value of product.For example: in manufacturing processed, semiconductor type coating material (as: antimony oozes stannic oxide antimony doped tin oxide) with 1% weight ratio, the anti-static coating material that the water of 10% weight ratio and the alcohol that cooperates weight ratio mix, be uniformly applied on the information display display screen, the product percent of pass of its finished product, according on the information display display screen residual washmarking and oily dirt situation decide, be about 60～90%, yet, utilize the semiconductor type coating material (as: antimony ooze stannic oxide antimonydoped tin oxide) of the present invention with same 1% weight ratio, add the anti-static coating material that the ethylene glycol (ethylene glycol) of 10% weight ratio mixes, mode by dip-coating or spraying is uniformly applied on the outer surface of information display display screen, form an antistatic coating layer, eliminate fully on this information display screen residual washmarking, make product percent of pass stably bring up to 95%.
The above only is the preferred embodiment of the present invention, claim scope proposed by the invention; be not limited to above embodiment, all personages who is familiar with this technical field are according to the disclosed technology contents of the present invention; other equivalence that can expect easily changes, and all should belong to protection category of the present invention.
Claims (7)
1. anti-static coating material that is used for information display, this anti-static coating material comprises by the semi-conductor type coating material, the anti-static coating material that (as: antimony oozes stannic oxide) and organic solvent mix, it is characterized in that, add a solvent of 5～25% weight ratios in the described anti-static coating material again, it is higher and for the solvability of the dirty thing of the oil characteristic bigger than water than water that this solvent possesses water soluble and alcohol, volatilization point, can be ethylene glycol, contain the organic solvent and the derivative thereof of dimethyl group.
2. information display anti-static coating material according to claim 1 is characterized in that, described anti-static coating material can comprise the semiconductor type coating material (as: antimony oozes stannic oxide) of 1% weight ratio and the composition of the water of 10% weight ratio.
3. information display anti-static coating material according to claim 1, it is characterized in that, the described derivative that adds the ethylene glycol solvent of anti-static coating material to comprises ethylene glycol [1,2] diacetate esters, ethylene glycol dibutyl ether, glycol monomethyl alkane ether and glycol monomethyl alkane ethylhexoate equal solvent.
4. information display anti-static coating material according to claim 1, it is characterized in that the described derivative that contains the organic solvent of dimethyl group in this anti-static coating material that adds to comprises dimethyl formamide, dimethyl sulfoxide (DMSO) and N,N-DIMETHYLACETAMIDE equal solvent.
5. information display anti-static coating material according to claim 1 is characterized in that, described organic solvent can be the clear or alcohol mixt of wine.
6. information display anti-static coating material according to claim 5 is characterized in that, described organic solvent can be ethanol or Virahol, or the mixture of ethanol or Virahol.
7. according to the described information display anti-static coating material of claim 1 to 6, it is characterized in that described anti-static coating material can be coated on the outer surface of display screen of information display, the inner surface of this display screen scribbles fluorescent layer; Described information display can be an effect emission display screen, liquid crystal display, plasma discharge display screen, vacuum fluorescent display screen or gas panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95105420A CN1062290C (en) | 1995-05-02 | 1995-05-02 | Anti-static coating material for information displaying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95105420A CN1062290C (en) | 1995-05-02 | 1995-05-02 | Anti-static coating material for information displaying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1134968A true CN1134968A (en) | 1996-11-06 |
| CN1062290C CN1062290C (en) | 2001-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95105420A Expired - Fee Related CN1062290C (en) | 1995-05-02 | 1995-05-02 | Anti-static coating material for information displaying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1062290C (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2668491B1 (en) * | 1990-10-29 | 1993-02-19 | Centre Nat Etd Spatiales | WHITE ANTISTATIC AND RADIOTRANSPARENT PAINTS FOR SATELLITES. |
| JPH0748662A (en) * | 1993-08-06 | 1995-02-21 | Nippon Steel Corp | Production of galvanized steel sheet excellent in plating adhesion and appearance |
| US5404073A (en) * | 1993-11-12 | 1995-04-04 | Chunghwa Picture Tubes, Ltd. | Antiglare/antistatic coating for CRT |
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1995
- 1995-05-02 CN CN95105420A patent/CN1062290C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1062290C (en) | 2001-02-21 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CPT (Fuzhou) Co., Ltd. Assignor: CPT (Bermuda) Limited by Share Ltd Contract fulfillment period: In October 31, 2007, 5 years Contract record no.: 200210156 Denomination of invention: Antistatic coating material for information display and its application in coating the display screen Granted publication date: 20010221 License type: Jiao Cha Record date: 20021231 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.10.31, 5 YEARS Name of requester: CHUNGHWA PICTURE TUBES (FUZHOU) CO., LTD. Effective date: 20021231 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20010221 Termination date: 20100502 |