CN1053992C - Anti-static coating for information display and its coating method - Google Patents
Anti-static coating for information display and its coating method Download PDFInfo
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- CN1053992C CN1053992C CN96110576A CN96110576A CN1053992C CN 1053992 C CN1053992 C CN 1053992C CN 96110576 A CN96110576 A CN 96110576A CN 96110576 A CN96110576 A CN 96110576A CN 1053992 C CN1053992 C CN 1053992C
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- information display
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Abstract
The present invention relates to an antistatic coating for an information display and a coating method thereof. Polystyrene sulfonic acid or polyacrylic acid, and multi-phenylamine, or 3, 4 polyethylene dioxygen thiophene and polystyrene sulfonate are mixed and react with the molecular ratio of 1 to 1 to form a conductive polymeric complex with the molecular weight of 90, 000 to 750, 000, wherein the conductive polymeric complex has the characteristics of water solubility and alcohol solubility; the polymeric complex is mixed with a mixture of 2 to 12 wt% of tetraethyl oxosilane, water, alcohol and 1.0 wt% of nitric acid to form the antistatic coating material of the present invention. The material can be uniformly coated on the surface of the outer side of a display panel of an information display in a dipping coating mode or a spray coating mode to form the antistatic coating.
Description
The present invention relates to a kind of antistatic coating and coating method thereof of information display.
The cathode ray tube (CRT) of general information display all operates under high-voltage state, very easily on the glass matter face-plate of a cathode-ray tube, accumulate electrostatic charge, form electrostatic effect, this electrostatic effect will make on this face-plate of a cathode-ray tube outside, very easily adsorb dust and airborne dirt, so, the image quality of this face-plate of a cathode-ray tube will be reduced.In addition, when the user touched the panel of this cathode ray tube, the user will be because of the electrostatic charge discharge process of being accumulated on the panel, and experiences shocked by electricity uncomfortable.If the discharge process of this electrostatic charge is when occurring on the production line operation, more will have influence on operating personnel's job morale and production quality.In addition, in the out of Memory display on the employed display screen, as: plasma discharge display screen (plasma discharge screen, be called for short PDP), vacuum fluorescent display screen (vacuum tluorescent screen) and gas panel (gas discharge screen) etc., also just like preceding described problem.
In addition, so can accumulate electrostatic charge on the display screen of general information display, mainly be because the non-conductive characteristic of its glass matter panel causes, traditional antistatic coated material mainly is as antimony doped tin oxide (antimony doped tin oxide) with the coated material of semiconductor type, a water and an organic solvent (organicsolvent), as: ethanol (ethanl) or isopropyl alcohol (isopropanol) mix, yet, unfortunately, the made information display of the antistatic coated material of this kind of coated, face many problems during fabrication, mainly due to the antistatic coated material of this kind for the dirt on the panel of information display unit, as: dust and when cleaning this panel residual brush body dirt sensitivity, very easily adsorb these dirts, and formed smoothness (smoothness) is undesirable on this panel surface, so directly or indirectly influence the durability and the transparency of this panel, thereby reduced the image quality of this panel.
The objective of the invention is in view of accumulating electrostatic charge on the display screen panel of above-mentioned conventional information display, after cleaning, still frequent residual dirt, as: greasy dirt, washmarking, dust and when cleaning this panel residual brush body dirt, reduced the image quality of this panel, and in design and make and to produce many problems, and provide antistatic coating that a kind of information shows device with and coating method.
For one of achieving the above object, the present invention utilizes polystyrolsulfon acid (polystyrene sulfonic acid) or polyacrylic acid (polyacrylic acid) and many aniline (polyaniline), or utilize 3,4 polyethylene dioxygen thiophene (3,4polyethylenedioxythiophene) mix with 1: 1 molecule rate (molecular ratio) with poly styrene sulfonate (polystyrenesulphonate), form one and have the characteristic of water soluble and alcohol and molecular weight (molecularweight) 90,000～750,000 conductivity polymerization complex compound, this polymer complex (polymer complex) and a tetrem oxosilane by percentage by weight 2-12% (tetraethoxysilane, TES), water, nitric acid (the HNO of alcohol and percentage by weight 1.0%
3) mixture evenly mix, form antistatic coated material, but this coated material mat dip-coating or spraying method coated equably form an antistatic coating with preferred resistive matter and abrasion resistant qualities to the outer surface of the display floater of information display.
For reaching another above-mentioned purpose, the invention provides the method for a kind of coated antistatic coating of the present invention, this method comprises following steps:
Polystyrolsulfon acid or polyacrylic acid are mixed the formation polymer complex with many aniline; This polymer complex is added in tetrem oxosilane, water, alcohol and the nitrate mixture mixes; The preheating panel of information display unit; The polymer complex coated is formed antistatic coating to the outer surface of panel of information display unit; At last, continue this coating of baking.
Also available in addition 3,4 polyethylene dioxygen thiophene mix the formation polymer complex with poly styrene sulfonate.
The panel of information display unit that adopts antistatic coating method of the present invention to produce possesses the antistatic effect and the image quality of high level.
Fig. 1 is the vertical section schematic diagram that adopts the face-plate of a cathode-ray tube of the antistatic coating of the present invention;
Fig. 2 is the partial cutaway schematic of smooth display floater that adopts the information display of the anti-quiet coating of the present invention;
Fig. 3 is with the work flow schematic diagram of antistatic coating coated to the display floater of information display according to the present invention.
With reference to a kind of cathode ray tube shown in Figure 1, this cathode ray tube 10 mainly comprises a sealed glass body 12, this body 12 is provided with a front panel, or title display screen 14, pars infundibularis 16 in the middle of one tube neck 18 and, the inner surface coated of this face glass 14 has fluorescence coating 24, this fluorescence coating 24 comprises a plurality of fluorescence picture points that can disperse fluorescence separately, when the color electric bundle focuses on fluorescence picture point on these face glass 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 the seal glass body 12 of this cathode ray tube 10, then be provided with a plurality of electron guns 20 that in-line is arranged that are, to produce the electron beam 22 on a plurality of fluorescence coatings 24 that focus on this face glass 12, this electron beam 22 will be along level and vertical direction deflection after magnetic deflection system (magneticdeflection yode), and focus on this fluorescence coating 24.
With reference to shown in Figure 2, be the partial cutaway schematic of the display floater of an information display, the section of this glass display panel 40 is flat condition and also can be arc surfaced, and its inner surface coated one fluorescence coating 42 its outer surfaces are coated one antistatic coating 44 then.Antistatic coated of the present invention is not limited to be applied on the display screen of cathode ray tube, also can be applied to employed display screen in the out of Memory display, as: field effect emission display screen (fieldemission display, abbreviation FED), LCDs (liquid crystal display, abbreviation LCD), on the outer surface of plasma display panel (PDP) (plasma discharge screen is called for short PDP), vacuum fluorescent display screen (vacuumfluorescent screen) and gas panel (gas discharge screen) etc.The fluorescence coating 42 of institute's coated on the inner surface of this glass display panel 40, be a plurality of fluorescence coatings that are spaced apart from each other and are point-like (dots) or banded (stripes) distribution, can connect a conducting element 52 on the outer surface of this glass display panel 40, this glass display panel 40 is connected to the earth terminal of a graphite linings 54 with this conducting element.
With reference to shown in Figure 3, operation process chart for the antistatic coating of coated the present invention on glass matter display floater, the first step 60 of this coated operation, earlier polystyrolsulfon acid or polyacrylic acid are mixed with the molecular ratio of many aniline with 1: 1, form a part amount 90 to react to each other, 000～750,000 conductivity polymerization complex compound, in another embodiment of the present invention, then utilize 3,4 polyethylene dioxygen thiophene and poly styrene sulfonate are mixed in step 61 with 1: 1 molecular ratio, react to each other to form a part amount 90,000～750,000 conductivity polymerization complex compound, in step 62, this polymer complex is added into a tetrem oxosilane by percentage by weight 2～12%, water, in the mixture that nitric acid mixed of alcohol and percentage by weight 1.0%, the addition of this polymer complex be its final mixed solution percentage by weight 0.2～6%, at this moment, in step 64, panel of information display unit is preheated to 45 degree Celsius approximately again.
The present invention is in step 66, this electric conductive polymer is applied to the outer surface that temperature is maintained at about the panel of information display unit of 45 degree Celsius, make its surface form an antistatic coating, then, again should antistatic coating in step 68, continue about 15～45 minutes of baking with 110～180 degree Celsius approximately, so, the present invention utilizes aforementioned polystyrene sulfonic acid to form the method for an antistatic coating, will make this antistatic coating have a scope 10
7～10
9Ohm-sq centimetre (ohms/cm
2) resistance value.And the present invention utilizes aforementioned polyacrylic acid to form the method for antistatic coating, then makes this coating have a scope 10
7-108 ohm-sq centimetre (ohms/cm
2) resistance value.The case hardness of this antistatic coating is all had the ability by the test of 9H pencil wiping hardness.
And the present invention is in another is implemented, then be to utilize polystyrolsulfon acid or polyacrylic acid to mix with the molecular ratio of many aniline with 1: 1, or utilize 3,4 polyethylene dioxygen thiophene are mixed with the molecular ratio of poly styrene sulfonate with 1: 1, and form a part amount 90 through chemical reaction, 000～750,000 conductivity polymerization complex compound, this polymer complex is added into a tetrem oxosilane by percentage by weight 2～12% again, water, in the mixture that nitric acid mixed of alcohol and percentage by weight 1.0%, evenly mix antistatic coated material of the present invention, but this coated material mat dip-coating or spraying method coated equably form an antistatic coating 44 to the outer surface of the display floater of information display.
The present invention all possesses the characteristic that water soluble and alcohol are arranged according to formed this electric conductive polymer of aforementioned composition, and it is formed antistatic coating on the outer surface of the display floater of information display, have preferable electrical resistance property and abrasion resistant qualities, so, possess the antistatic effect and the image quality of high level by the panel of information display unit of antistatic coated manufacturing of the present invention.
The above only is preferred embodiment of the present invention, still; the present invention's scope required for protection is not limited thereto, and the technical staff under all this areas is according to the disclosed technology contents of the present invention; the equivalence that can expect easily changes, and all should belong to protection category of the present invention.
Claims (11)
1, a kind of antistatic coating of information display, it is characterized in that, this antistatic coating coated is on the outer surface of panel of information display unit, said coating is by containing the tetrem oxosilane, water, the mixed solution of alcohol and nitric acid and water soluble and alcohol, and molecular weight is 90,000～750, the conductivity polymerization complex compound of the HMW of 000 scope mixes, this conductivity polymerization complex compound is to be mixed by polystyrolsulfon acid or polyacrylic acid and the many aniline molecular ratio with 1: 1, or mix by 3,4 polyethylene dioxygen thiophene and poly styrene sulfonate molecular ratio with 1: 1.
2, the antistatic coating of information display according to claim 1, wherein the addition of this conductivity polymerization complex compound be this antistatic coating percentage by weight 0.2～6%.
3, the antistatic coating of information display according to claim 1, wherein this mixed solution is that nitric acid by tetrem oxosilane, water, alcohol and the percentage by weight 1.0% of percentage by weight 2-12% mixes.
4, a kind of coating method of antistatic coating of information display, the step of this method mainly comprises:
At first, polystyrolsulfon acid or polyacrylic acid are mixed with many aniline, formed a part amount 90,000～750 so that react to each other, 000 conductivity polymerization complex compound;
Secondly, this conductivity polymerization complex compound is mixed mutually with a solution that is mixed by tetrem oxosilane, water, alcohol and nitric acid;
Then, the outer surface of this panel of information display unit of preheating;
Then, with the outer surface of this conductivity polymerization complex compound coated, make on its surface and form an antistatic coating layer to panel of information display unit;
At last, continue this antistatic coating of baking.
5, the coating method of the antistatic coating of information display according to claim 4, wherein this polystyrolsulfon acid or polyacrylic acid and many aniline are mixed with 1: 1 molecular ratio.
6, a kind of coating method of antistatic coating of information display, this method comprises: 3,4 polyethylene dioxygen thiophene are mixed with the molecular ratio of poly styrene sulfonate with 1: 1, form molecular weight 90 so that react to each other, 000～750,000 conductivity polymerization complex compound.
7, the coating method of the antistatic coating of information display according to claim 6, wherein this polymer complex system is mixed with the molecular ratio of poly styrene sulfonate with 1: 1 by 3,4 polyethylene dioxygen thiophene.
8, according to the coating method of the antistatic coating of claim 4 or 6 described information displays, wherein the addition of this polymer complex be its antistatic coating percentage by weight 0.2～6%.
9, the coating method of the antistatic coating of information display according to claim 4, wherein this mixed solution is that nitric acid by tetrem oxosilane, water, alcohol and the percentage by weight 1.0% of percentage by weight 2～12% mixes.
10, the coating method of the antistatic coating of information display according to claim 4 wherein, makes the outer surface of this panel of information display unit be preheated to 45 degree Celsius.
11, the coating method of the antistatic coating of information display according to claim 4, wherein, said lasting baking temperature is 110～180 degree Celsius, the duration is 15-45 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96110576A CN1053992C (en) | 1996-07-23 | 1996-07-23 | Anti-static coating for information display and its coating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96110576A CN1053992C (en) | 1996-07-23 | 1996-07-23 | Anti-static coating for information display and its coating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1171617A CN1171617A (en) | 1998-01-28 |
| CN1053992C true CN1053992C (en) | 2000-06-28 |
Family
ID=5120875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96110576A Expired - Fee Related CN1053992C (en) | 1996-07-23 | 1996-07-23 | Anti-static coating for information display and its coating method |
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| CN (1) | CN1053992C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100436710B1 (en) * | 2002-01-23 | 2004-06-22 | 삼성에스디아이 주식회사 | Transparent conductive layer, preparing method thereof and image display device employing the same |
| JP3902186B2 (en) | 2003-04-21 | 2007-04-04 | 日東電工株式会社 | Antistatic optical film, method for producing the same, and image display device |
| JP4346087B2 (en) | 2004-10-21 | 2009-10-14 | 日東電工株式会社 | Antistatic optical film, antistatic adhesive optical film, production method thereof and image display device |
| JP4714452B2 (en) | 2004-10-21 | 2011-06-29 | 日東電工株式会社 | Antistatic adhesive optical film and image display device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055378A (en) * | 1990-03-31 | 1991-10-16 | 三星电管株式会社 | Hanging down composition, the compound method of glittering with anti-static transparent coating reaches with this video display unit (VDU) that applies |
| US5122709A (en) * | 1989-03-20 | 1992-06-16 | Hitachi, Ltd. | Antistatic cathode ray tube with lobe like projections and high gloss and hardness |
-
1996
- 1996-07-23 CN CN96110576A patent/CN1053992C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5122709A (en) * | 1989-03-20 | 1992-06-16 | Hitachi, Ltd. | Antistatic cathode ray tube with lobe like projections and high gloss and hardness |
| CN1055378A (en) * | 1990-03-31 | 1991-10-16 | 三星电管株式会社 | Hanging down composition, the compound method of glittering with anti-static transparent coating reaches with this video display unit (VDU) that applies |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1171617A (en) | 1998-01-28 |
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| 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) Co., Ltd. Contract fulfillment period: In October 31, 2007, 5 years Contract record no.: 200210156 Denomination of invention: Antistatic coating layer for information display and coating method thereof Granted publication date: 20000628 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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Granted publication date: 20000628 |