CN1060586C - Coating for panel of information display unit - Google Patents
Coating for panel of information display unit Download PDFInfo
- Publication number
- CN1060586C CN1060586C CN95105565A CN95105565A CN1060586C CN 1060586 C CN1060586 C CN 1060586C CN 95105565 A CN95105565 A CN 95105565A CN 95105565 A CN95105565 A CN 95105565A CN 1060586 C CN1060586 C CN 1060586C
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- panel
- information display
- coating layer
- display unit
- silane
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Abstract
The present invention relates to coating for panels of information display units, which is applied to the surface of the outer side of a panel of an information display unit (such as cathode ray tubes). The present invention is characterized in that a silane coupling agent is added in organic dye; the coupling agent has the characteristic of connecting silane and the organic dye so that the organic dye can be tightly connected with silane components in an antistatic coating layer and an anti-reflection coating layer on the surface of the outer side of the panel of the information display unit in order to prevent the organic dye from decomposing to disperse from the antistatic coating layer and the anti-reflection coating layer due to wipe. Thus, the color filtering function of the organic dye is persistent. The panel of the information display unit has pure image color quality with high level.
Description
The present invention relates to a kind of coating of panel of information display unit, this coating is to be applied on the panels outside surface of information display (as: cathode ray tube), this coating mainly is to add a kind of coupling agent in organic dyestuff (organic dye), utilize this coupling agent to possess and make silane (silane) and organic dyestuff (organic dye) link the characteristic of (binding), make this organic dyestuff link with the silane composition in the coating layer on the panel of information display unit outer surface, to prevent that this organic dyestuff is because of via water or alternate manner wiping, and in this coating layer, decompose and scatter and disappear, the colour filter function of the organic dyestuff in this coating layer is able to lastingly, and then makes the panel of this information display (as: cathode ray tube) possess image colour purity (color purity) quality of high level.
The cathode ray tube (CRT) of general information display all is to utilize high-octane electron beam to focus on the fluorescence coating that is coated on face-plate of a cathode-ray tube interior side-wall surface, make the unit and fluorescence unit of this fluorescence coating on the glass face-plate of a cathode-ray tube, form video signal image according to electron beam, this unit and fluorescence unit can be divided into three classes according to its character, all kinds of unit and fluorescence units will send red light respectively after electron beam focusing excites, green light and blue light, with regard to image colour purity (co1or purity) quality of information display (for example cathode ray tube), best colour purity state is that each fluorescence that such unit and fluorescence unit distributed has discrete each other spectrum (discrete spectra), that is, not overlapping fully (overlap) each other between the spectrum of fluorescence that all kinds of unit distributes.Yet, in fact, the spectrum of the fluorescence that all kinds of fluorescences unit is distributed all can with the adjacent fluorescence spectrum overlaid that other unit and fluorescence unit distributed, for example: the spectrum of fluorescence has overlapping phenomenon between red light and green light or green light and blue light, wherein the overlapping scope of fluorescence spectrum is between wavelength 460～500nm between redness and green light, the overlapping scope of fluorescence spectrum then is included between wavelength 560～600nm between green and blue light, and this kind will reduce image colour purity (colorpurity) quality of the panel of this information display because of the phenomenon of the spectra overlapping of fluorescence that all kinds of unit distributes.
For improving this shortcoming, existing in recent years some inventions are desired to seek solution at this, these inventions all are by organic dyestuff (organic dye) is infiltrated in the unit and fluorescence unit, coat again on the panel inner surface of cathode ray tube, or by organic dyestuff (organicdye) is infiltrated in antistatic coating and the anti-reflective coating cloth material, coat again on the panels outside surface of cathode ray tube, thereby by organic dyestuff (organic dye) filtering the fluorescence of the wavelength of spectra overlapping phenomenon will take place, wish to proofread and correct in view of the above and improve image colour purity (color purity) quality of this panel of information display unit.But, these inventions are not because of the other problem of will deriving on making, and not commercialization as yet, exactly because of infiltrate in antistatic coating and the anti-reflective coating cloth material organic dyestuff (organic dye) will because of the user with water or alternate manner wiping, and decompose in the lip-deep antistatic coating layer of this information display (as cathode ray tube) panels outside and the reflection coating layer certainly and scatter and disappear, cause the colour filter function of the organic dyestuff in these coating layers can't be lasting, be difficult to make the panel of information display (as: cathode ray tube) to keep image colour purity (color purity) quality of high level.
Because image colour purity (colorpurity) bad of the display screen panel of above-mentioned conventional information display, and the invention that above discloses is difficult to make the colour filter function of the organic dyestuff in the panel surface coating layer of information display (as: cathode ray tube) lasting, the shortcoming that can't keep image colour purity (color purity) quality of high level, the inventor studies the coating of inventing out a kind of panel of information display unit, this kind coating is to be applied on the panels outside surface of information display (as: cathode ray tube), this coating mainly is to add silane coupling agent (silane coupling agent) in organic dyestuff (organic dye), this coupling agent possesses the characteristic that makes silane (silane) and organic dyestuff (organic dye) link (binding), this organic dyestuff can closely be linked with the silane composition in lip-deep antistatic coating layer of information display (as: cathode ray tube) panels outside and the reflection coating layer, to prevent that this organic dyestuff is because of via water or alternate manner wiping, and decompose in the lip-deep antistatic coating layer of this information display (as: cathode ray tube) panels outside and the reflection coating layer certainly and scatter and disappear, make the organic dyestuff in these coating layers can be effectively and the lap of the fluorescence spectrum that distributed between unit and fluorescence unit of all kinds in the filtering fluorescence coating enduringly, make the panel of this information display (as: cathode ray tube) possess image colour purity (colorpurity) quality of high level.
Description of drawings:
Fig. 1 is the vertical section schematic diagram that according to the present invention antistatic coating layer and reflection coating layer is applied on a kind of face-plate of a cathode-ray tube;
Fig. 2 is distributed in antistatic internal layer and the anti-reflective coating coated skin and is applied to partial cutaway schematic on a kind of smooth display floater of information display according to the present invention;
Fig. 3 is the schematic flow sheet that according to the present invention antistatic coating and anti-reflective coating is distributed on a kind of display floater of information display;
Fig. 4 is by the CIE chromaticity schematic diagram of obtained coloured light on the display floater of information display, to show that coloured light in 560～600nm wave-length coverage wherein is by the situation of filtering according to the present invention;
Fig. 5 is by the CIE chromaticity schematic diagram of obtained coloured light on the display floater of information display according to the present invention; To show that coloured light in 460～500nm wave-length coverage wherein is by the situation of filtering.
Shown in Figure 1 is a kind of cathode ray tube, 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 of this face glass 14 is coated with fluorescence coating 24, this fluorescence coating 24 comprises a plurality of unit and fluorescence units that can disperse fluorescence respectively, when the color electric bundle focuses on unit and fluorescence unit on these face glass 14 inner surfaces, these unit will send coloured light, with display video signal 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 are linear array, to produce the electron beam 22 on a plurality of fluorescence coatings 24 that focus on this face glass 12, these electron beams 22 will be along level and vertical direction deviation behind magnetic deflection yoke (magnetic deflection yoke), and focuses on this fluorescence coating 24.
Shown in Figure 2, be the partial cutaway schematic on the display floater of an information display, the inner surface of this glass display panel 40 is coated with a fluorescence coating 42, and its outer surface then is coated with a coating layer 44.Antistatic coating of the present invention is not limited to be applied on the display screen of cathode ray tube, also can be applied in the out of Memory display on the employed display screen outer surface.The fluorescence coating 42 that is coated with on the inner surface of this glass display panel 40, be a plurality of each intervals and be point-like (dots) or fluorescence coating that banded (stripes) distributes, the coating layer of its outer surface then comprises the antistatic coating layer 46 and the outer field reflection coating layer 48 of internal layer, can be equipped with a conducting element 50 on the surface of the antistatic coating layer 46 of the outer surface of this glass display panel 40 or internal layer, this glass display panel 40 is connected to earth terminal by this conducting element.
Shown in Figure 3, being the present invention is applied to the antistatic coating layer 46 and the outer field reflection coating layer 48 of internal layer on the outer surface of glass display panel, form the workflow diagram of a coating layer 44, the first step 52 of this coating work, be earlier organic dyestuff (organicdye) and silane coupling agent (silane coupling agent) or other relevant coupling agent (coupling agent) to be added in the antistatic coating solution, or organic dyestuff (organic dye) and silane coupling agent (or other relevant coupling agent) are added in the antireflection coating solution in step 54, like this, the mixture of this organic dyestuff and silane coupling agent promptly is added in the antistatic coating layer 46 and outer field reflection coating layer 48 of internal layer on the outer surface of glass display panel, wherein this antistatic coating solution mainly comprises conductive metal oxide (conductive metal oxides is as the SnO that is mixed with Sb
2(sb-doped SnO
2), be mixed with the SnO of In
2(In-doped SnO
2) etc.), silane (silane, as: compositions such as TCS or TES and water, this antireflection coating solution then comprises silane (silane, as TCS or TES) and composition such as water, and be added into this coupling agent in this antistatic coating solution and the antireflection coating solution, possess the characteristic and the ability that make silane and organic dyestuff link (binding), therefore, when this silane coupling agent during with following chemical formulation:
Wherein M is meant functional group, as :-NH
2Amino group (amino group) or
Cycloalkyl groups (epoxy group), R and R ' refer to alkyl group (alkyl groups).
When coupling agent that this organic dyestuff and silane (silane) mix be added into contain the silane composition (as: in the antistatic coating of halogenated silane (halogenated silane) or alkoxy silane (alkoxyl silane) and the antireflection coating solution, following reaction will take place:
Utilize this reaction, silane composition (as halogenated silane halogenated silane) or alkoxy silane (alkoxyl silane) that this organic dyestuff will be coated with in the solution with antistatic coating and antireflection by this silane (silane) mixed coupling agent are connected, so, this organic dyestuff will forever closely link together with the lip-deep antistatic and reflection coating layer of information display (as: cathode ray tube) panels outside, and order is added into not reason wiping or the cleaning and scatter and disappear of organic dyestuff on this information display (as: cathode ray tube) panel.
The percentage by weight that is added into the organic dyestuff in this antistatic coating solution and/or the antireflection coating solution among the present invention is 0.1～25%, and the interpolation coupling agent of silane mixture then is 0.1～20% percentage by weight.Described organic dyestuff is for containing acid substituent diazonium (azo), triarylmethane (triarylmethane) or anthraquinone (authraquinone) dyestuff, and the acid substituting group that it contained is such as being: nitro (nitro), carboxyl (carboxy) or sulfo group (sulfonic acicd).In addition, as previously mentioned, traditional antistatic coating solution mainly comprises compositions such as conductive metal oxide (conductive metal oxides), silane (silane) and water, and traditional antireflection coating solution comprises that then silane (silane), water and other are the solvent mixture compositions such as (alcohol-based solvent mixtures) of base with ethanol.When step 56 of the present invention, this panel of information display unit is about 40～45 ℃ with being preheated to earlier, then in step 58, one antistatic coating solution is coated to the outer surface of this panel, make in this panel surface and form an antistatic coating layer, and in the step 60, outer surface in the antistatic coating of this panel applies antireflection coating solution again, make in its surface and form a reflection coating layer, and then should antistatic coating layer and reflection coating layer in step 62, continue about 20～40 minutes of baking with 110～180 degree Celsius approximately, last, again in step 64, with air cooling to room temperature state.
In view of the above, when the present invention is added in the antireflection coating solution with the organic dyestuff of 0.5% percentage by weight, this organic dyestuff will can be used as the absorbing medium of coloured light in 580～600nm scope, with overlapping part between effective filtering redness and green spectral, in addition, be added into the intermixture of the silane of 0.1% percentage by weight in this antireflection coating solution of the four ethoxy silane (tetraethoxy silane and other solvent) that a liter (liter) contain 1% percentage by weight, at this moment, panel with information display is preheated to 40 degree Celsius approximately earlier, again an antistatic coating solution that includes the tin-oxide that oozes antimony (antimony dopedtin oxide and other coupling agent) of 1% percentage by weight is coated to the outer surface of this panel, in this antistatic coating solution drying, after forming an antistatic coating layer, panel with this information display is preheated to 40 degree Celsius approximately again, and apply aforesaid antireflection coating solution in the outer surface of the antistatic coating of this panel, and then this panel continued baking after about 20 minutes with 180 degree Celsius, again with air cooling to room temperature state.
Shown in Figure 4, it is CIE chromaticity schematic diagram by obtained coloured light on the panel of information display unit of coating method made according to the present invention, this coating method mainly is to be coated with in the solution in one liter of antireflection that includes four ethoxy silane (tetraethoxy silane and other solvent), the interpolation percentage by weight is 0.5% naphthols red and black (naphthol red dark, CI-12355) the dye well percentage by weight is 0.1% one third amino trihydroxyethyl silane (Y-amino propyl triethoxy silane), again it is coated on the panel of information display unit according to abovementioned steps, and after tested, to show that coloured light in 580～600nm wave-length coverage wherein is by the situation of filtering, wherein by the displacement situation at the formed triangle of pecked line tip, it is effective that the colour purity effect that can fully reflect its redness and green light obviously is not added with the colour purity of organic dye and silane (silane) intermixture than tradition.In addition, again the present invention and traditional panel of information display unit are inserted in the water of boiling, and continued to boil about 5 minutes, can find easily that the organic dyestuff that is added in the panel of information display unit of the present invention is not lost fully, otherwise the dyestuff that is added in traditional panel of information display unit then vanishes.
Shown in Figure 5, it is CIE chromaticity schematic diagram by obtained coloured light on another panel of information display unit of coating method made according to the present invention, this coating method mainly is to be coated with in the solution in one liter of antireflection that includes four ethoxy silane (tetraethoxy silane and other solvent), add percentage by weight and be 0.5% Yellow s (CI-10316) dye well percentage by weight and be 0.1% the third amino trihydroxyethyl silane (Y-amino propyl tri-ethoxy silane), again it is coated on the panel of information display unit according to abovementioned steps, and after tested, to show that coloured light in 480～550nm wave-length coverage wherein is by the situation of filtering, wherein by the displacement situation at the formed triangle of pecked line tip, the colour purity effect that can fully reflect its green and blue light, obviously be not added with the good of organic dye and silane (silane) intermixture than the formed leg-of-mutton tradition of solid line, in addition, again the present invention and traditional panel of information display unit are inserted in the water of boiling, and continued to boil several minutes, also can find easily that the organic dyestuff that is added in the panel of information display unit of the present invention is not lost fully, otherwise the dyestuff that is added in traditional panel of information display unit then vanishes.
The above; it only is preferred embodiment of the present invention; but claim scope of the present invention is not limited thereto; every those skilled in the art; according to disclosed technology contents, the equivalence that can run away with changes, as: organic dyestuff of the present invention and silane coupling agent are added in this antistatic coating solution and/or the antireflection coating solution; or in its mixing coating solution, all should belong to and not break away from protection scope of the present invention.
Claims (10)
1, a kind of panel of information display unit, be coated with fluorescence coating on the inner surface of described panel, described fluorescence coating comprises a plurality of each intervals and can focus on the fluorescence coating of dispersing redness, green and blue-fluorescence because of three-color electron beam, then be coated with a coating layer on the outer surface of described panel, this coating layer comprises:
One antistatic coating layer and/or reflection coating layer has the silane composition in the described coating layer;
One organic dyestuff is added in described antistatic coating layer and/or the reflection coating layer, to absorb the fluorescence between between adjacent two looks;
One silane coupling agent is added in described antistatic coating layer and/or the reflection coating layer, so that the silane composition in described organic dyestuff and described antistatic coating layer and/or the reflection coating layer is connected.
2, panel of information display unit as claimed in claim 1, wherein said organic dyestuff comprise diazonium, triarylmethane or anthraquinone etc. and have acid substituent organic dyestuff.
3, panel of information display unit as claimed in claim 2, wherein said acid substituting group comprises nitro, carboxyl or sulfo group.
4, panel of information display unit as claimed in claim 1, wherein said silane coupling agent comprise with following chemical formulation:
Wherein M refers to functional group, and R and R ' refer to alkyl group.
5, panel of information display unit as claimed in claim 4, wherein said functional group can be-NH
2Amino group or
Cycloalkyl groups.
6, panel of information display unit as claimed in claim 1 or 2, the percentage by weight of wherein said organic dyestuff is 0.1～25%.
7, as claim 3,4 or 5 described panel of information display unit, the percentage by weight of wherein said silane coupling agent is 0.1～20%.
8, a kind of coating process of panel of information display unit, described method are that its step comprises in order to the colour purity of reinforcement panel of information display unit outer surface to redness, green and blue-fluorescence:
Earlier with a solvent that mixes by organic dyestuff and silane coupling agent, be added in antistatic coating solution and/or the antireflection coating solution, by described coupling agent the silane composition in described organic dyestuff and described antistatic coating solution and/or the antireflection coating solution is connected, the described organic dyestuff that is added to prevent scatters and disappears in described antistatic coating solution and/or the formed coating layer of antireflection coating solution;
Described panel of information display unit is preheated to a suitable preheat temperature;
Again described coating solution is coated to the outer surface of panel, to form an antistatic coating layer and/or a reflection coating layer in panel surface;
And then, continue to toast a suitable stoving time with a suitable baking temperature with described antistatic coating layer and/or reflection coating layer;
At last, again with air cooling to room temperature state.
9, the coating process of a kind of panel of information display unit as claimed in claim 8, wherein said preheat temperature are about 40～45 degree Celsius.
10, the coating process of a kind of panel of information display unit as claimed in claim 8, wherein said baking temperature are about 110～180 degree Celsius, and described stoving time is about 20～40 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95105565A CN1060586C (en) | 1995-05-31 | 1995-05-31 | Coating for panel of information display unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95105565A CN1060586C (en) | 1995-05-31 | 1995-05-31 | Coating for panel of information display unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1137167A CN1137167A (en) | 1996-12-04 |
| CN1060586C true CN1060586C (en) | 2001-01-10 |
Family
ID=5075532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95105565A Expired - Fee Related CN1060586C (en) | 1995-05-31 | 1995-05-31 | Coating for panel of information display unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1060586C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106980A (en) * | 1984-07-13 | 1987-04-01 | B·F·谷德里奇公司 | Glass fibre enhanced vinyl chloride polymer products and preparation technology thereof |
| EP0335680A2 (en) * | 1988-03-31 | 1989-10-04 | Kabushiki Kaisha Toshiba | A cathode ray tube |
| EP0603941A1 (en) * | 1992-12-21 | 1994-06-29 | Koninklijke Philips Electronics N.V. | Display device comprising a display screen provided with a filtering layer |
-
1995
- 1995-05-31 CN CN95105565A patent/CN1060586C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106980A (en) * | 1984-07-13 | 1987-04-01 | B·F·谷德里奇公司 | Glass fibre enhanced vinyl chloride polymer products and preparation technology thereof |
| EP0335680A2 (en) * | 1988-03-31 | 1989-10-04 | Kabushiki Kaisha Toshiba | A cathode ray tube |
| EP0603941A1 (en) * | 1992-12-21 | 1994-06-29 | Koninklijke Philips Electronics N.V. | Display device comprising a display screen provided with a filtering layer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1137167A (en) | 1996-12-04 |
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|---|---|---|---|
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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: Information display panel and coating method thereof Granted publication date: 20010110 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: 20010110 Termination date: 20130531 |