CN1062290C - Anti-static coating material for information displaying device - Google Patents
Anti-static coating material for information displaying device Download PDFInfo
- Publication number
- CN1062290C CN1062290C CN95105420A CN95105420A CN1062290C CN 1062290 C CN1062290 C CN 1062290C CN 95105420 A CN95105420 A CN 95105420A CN 95105420 A CN95105420 A CN 95105420A CN 1062290 C CN1062290 C CN 1062290C
- Authority
- CN
- China
- Prior art keywords
- coating material
- display screen
- static coating
- information display
- ethylene glycol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Paints Or Removers (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
The present invention relates to an antistatic coating material for an information display. The coating material is prepared by adding solvents to the traditional antistatic coating material (such as antimony doped tin oxide), wherein the solvents can be dissolved in water and alcohol, the volatilizing point of the solvents is higher than that of water, and the solubility of the solvents to oil stain is higher than that of water. The solvents having the characteristics can be added to the antistatic coating material and comprise ethylene glycol, an organic solvent containing dimethyl groups and derivatives thereof. When the antistatic coating material is utilized to manufacture display screens, the contamination of the display screens can be reduced.
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: being mixed with the stannic oxide antimony doped tinoxide of antimony).
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: being mixed with the stannic oxide antimony doped tin oxide of antimony), 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: being mixed with the stannic oxide of antimony) 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 with semiconductor type coating material (as: being mixed with the stannic oxide an-timony doped tin oxide of antimony) and an organic solvent (organio solvent, as: the mixture of ethanol ethanol or Virahol isopropanol or ethanol and Virahol) be 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 glycoldiacetate), ethylene glycol dibutyl ether (ethylene glycol dibutyl ether), ethylene glycol monoalkyl ether (ethylene glycol monoalkyl ether) and glycol monoalkyl ethyl ether acetic ester (ethylene glycol monoalkyl ethyl etheracetate) 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 (dimethylformamide), dimethyl sulfoxide (DMSO) (dimethyl sulfoxide) and N,N-DIMETHYLACETAMIDE (dimethyl acetamide) equal solvent.At last, with aforementioned by semi-conductor type coating material (as: being mixed with the stannic oxide antimony doped tin oxide of antimony), organic solvent (organic solvent, as ethanol ethanol 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: being mixed with the stannic oxide antimony doped tin oxide of antimony) 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: be mixed with the stannic oxide antimony doped tin oxide of antimony) of the present invention with same 1% weight ratio, add the anti-static coating material that the ethylene glycol (ethyleneglycol) 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 (3)
1, a kind of anti-static coating material that is used for information display, this anti-static coating material comprises the anti-static coating material that is mixed by semi-conductor type coating material and organic solvent, wherein this semi-conductor type coating material is the stannic oxide that is mixed with antimony, described organic solvent is an ethanol, the mixture of Virahol or ethanol and Virahol, it is characterized in that, add the solvent of 5～25% weight ratios in the described anti-static coating material again, this solvent is selected from ethylene glycol, ethylene glycol [1,2] diacetate esters, ethylene glycol dibutyl ether, ethylene glycol monoalkyl ether and glycol monoalkyl ethyl ether acetic ester, dimethyl formamide, dimethyl sulfoxide (DMSO) and N,N-DIMETHYLACETAMIDE.
2, information display anti-static coating material according to claim 1 is characterized in that, described anti-static coating material comprises the stannic oxide that is mixed with antimony of 1% weight ratio and the ethylene glycol of 10% weight ratio.
3, the application of each described information display anti-static coating material in the display screen of coating information display among the claim 1-2, it is characterized in that, described anti-static coating material is 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 is 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 CN1134968A (en) | 1996-11-06 |
| CN1062290C true CN1062290C (en) | 2001-02-21 |
Family
ID=5075508
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) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0487366A1 (en) * | 1990-10-29 | 1992-05-27 | Centre National D'etudes Spatiales | White radiotransparent antistatic 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 |
-
1995
- 1995-05-02 CN CN95105420A patent/CN1062290C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0487366A1 (en) * | 1990-10-29 | 1992-05-27 | Centre National D'etudes Spatiales | White radiotransparent antistatic 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1134968A (en) | 1996-11-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6146230A (en) | Composition for electron emitter of field emission display and method for producing electron emitter using the same | |
| US5773150A (en) | Polymeric antistatic coating for cathode ray tubes | |
| US8062696B2 (en) | Front substrate of plasma display panel and fabricating method thereof | |
| KR100239104B1 (en) | Color cathode ray tube | |
| US6808435B2 (en) | Paint for forming insulating film, and plasma display panel using the paint and method of manufacturing the same | |
| CN1062290C (en) | Anti-static coating material for information displaying device | |
| US6746530B2 (en) | High contrast, moisture resistant antistatic/antireflective coating for CRT display screen | |
| DE60102054T2 (en) | Low melting point glass to cover electrodes and plasma display device | |
| KR100391255B1 (en) | Antistatic coating for video display screen | |
| EP1323804A1 (en) | Dispersion for preventing electrification and antistatic film, and image display device | |
| KR100670385B1 (en) | A phosphor, a phosphor paste composition comprising the phosphor and a flat display device employing a phosphor layer comprising the phosphor | |
| KR20020090091A (en) | Carbon black coating for crt display screen with uniform light absorption | |
| CN1061777C (en) | Coating process of antistatic and antireflective coating for video information display panel | |
| CN1053992C (en) | Anti-static coating for information display and its coating method | |
| KR19980014731A (en) | Antistatic coating for CRT | |
| US6371822B1 (en) | Composition of barrier rib material in display panel | |
| TW314684B (en) | Anti-electrostatic coating of information display | |
| KR100303846B1 (en) | Composition for MgO layer of plasma dispaly panel | |
| US6521346B1 (en) | Antistatic/antireflective coating for video display screen with improved refractivity | |
| JP2001017371A (en) | Cleaning cloth and manufacture of display panel | |
| KR100342040B1 (en) | Cathode ray tube having high-brightness | |
| CN101515529A (en) | Plasma display panel having high clarity and color purity | |
| JPH0588001A (en) | Formation of antireflection film on outside surface of face part of cathode ray tube | |
| EP0702390B1 (en) | Antireflection type cathode-ray tube and method of manufacturing the same | |
| JPH06103931A (en) | Cathode-ray tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
|
| 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 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20010221 Termination date: 20100502 |