CN1515513A - Composition of base plate glass for display - Google Patents
Composition of base plate glass for display Download PDFInfo
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- CN1515513A CN1515513A CNA031001041A CN03100104A CN1515513A CN 1515513 A CN1515513 A CN 1515513A CN A031001041 A CNA031001041 A CN A031001041A CN 03100104 A CN03100104 A CN 03100104A CN 1515513 A CN1515513 A CN 1515513A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
- C03C3/093—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium containing zinc or zirconium
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Abstract
The composition of base plate glass for display includes (wt%) 56.0-62.0% of silicon oxide, 13.0-18.0% of aluminium oxide, 9.0-13.5% of boron oxide, 1.0-8.0% of strontium oxide, 0.1-8.0% of barium oxide, 3.5-8.5% of calcium oxide, 0-1.0% of magnesium oxide, 0.1-1.5% of zinc oxide, 0.1-1.5% of zirconium oxide and 0-1.0 % of beryllium oxide, in which the total weight percentage of the components of calcium oxide, magnesium oxide, zinc oxide, zirconium oxide and beryllium oxide is 4.0-9.0%. It has the glass liquid-phase temperature below 1045 deg.C, and other important physical characteristics, such as expansion coefficient, strain point and density are approaching to that of general alumino-silicate glass. It also has the characteristics of preventing production of devitrification or crystallization.
Description
Technical field
The invention relates to the prescription of the sheet glass that a kind of indicating meter that is applied to produce the about 0.2-1.2mm of thickness uses, refer in particular to a kind of composition in order to the base plate glass of producing liquid-crystal display.
Background technology
As everyone knows, generally be used for production active-matrix formula liquid-crystal display, as membrane transistor liquid-crystal display or the employed base plate glass of similar indicating meter, all belong to a kind of aluminum silicate glass, only contain the alkalimetal oxide composition of trace during this kind glass is formed, can utilize the methods of forming such as floating method or glass tube down-drawing, be made into sheet glass, wherein, the floating method is applicable to the industrial scale of day output more than 30 tons, and drop-down rule is applicable to day output 3-10 ton industrial scale.
Generally, when utilizing glass tube down-drawing to make sheet glass, high temperature and glass cream with flowability, be in regular turn earlier through devices such as glass calciner, clarifying tank and cooling tubes, flow to distribution trough with evenly distribute glass flow rate function, through the sheet glass pumping and leading-in device, that melten glass is drop-down again, low cooling, and make sheet glass.Because, the drop-down method of forming is the mass production ultra-thin flat glass reliably, thus be suitable as the method for forming of making the base plate glass that liquid-crystal display uses, in it is made, when glass cream is flowed through calciner and clarifying tank, its temperature is higher, and has flowability, when flowing through cooling tube, its temperature of cooling tube military order reduces, when flowing to the distribution trough with evenly distribute glass flow rate function, it is temperature required to be reduced to moulding, even its range of viscosities remains on 10
4.6-10
5.2The scope of pool (poise).
Generally speaking, when the temperature of glass cream reduces, very easily cause the glass devitrification or produce crystalline polamer, and definition glass devitrification or generation crystallization top temperature, i.e. glass liquidus temperature (T
L), therefore, the glass cream temperature is at glass liquidus temperature (T
L) when above, even through thermal treatment for a long time, also unlikely generation devitrification or crystalline polamer.Yet, because the glass ware forming temperature is often approaching with the glass liquidus temperature, so if the glass cream temperature is in the glass liquidus temperature when following for a long time, very easily produce devitrification or crystallization, cause glass surface or the inner defective that takes place, reduced the good rate of product, therefore, in the processing procedure of glass ware forming, between glass ware forming temperature and the glass liquidus temperature, appropriate intervals should be arranged, and according to experiment experience: the glass ware forming temperature should be high about more than 40 ℃ than the glass liquidus temperature, could prevent effectively that glass from devitrification or crystalline polamer taking place in moulding process.
Traditional method is, when utilizing the drop-down method of forming to make aluminum silicate glass, its temperature all is to be controlled between about 1085-1250 ℃, therefore, in order to reduce glass surface or the inner defectives such as devitrification or crystallization that take place, generally all be by improving two kinds of ways such as glass ware forming temperature or reduction glass liquidus temperature, making the glass ware forming temperature high more than 40 ℃ than the glass liquidus temperature.
At first, aspect raising glass ware forming temperature, because can improving with the glass cream temperature, the viscosity of glass cream reduce, therefore, improve mold temperature and will make glass cream viscosity reduction in the moulding, be difficult for keeping the article shape dimensional precision, and improve mold temperature, also will make cooling tube, have the distribution trough of evenly distribute glass flow rate function and sheet glass Xu device for cooling etc., operate in the comparatively high temps state, so, except increasing energy consume, also can shorten the work-ing life of said apparatus; More can because of glass cream and said apparatus under pyroreaction, make in the sheet glass after more impurity and pollutent are sneaked into moulding, the good rate that causes product can't improve all the time, does not meet economic benefit.Therefore, in practicality, more be not inclined to the glass ware forming temperature mode that improves that adopts, but, be the normal scheme that adopts to reduce the glass liquidus temperature.
When regulation and control glass liquidus temperature, generally be by adjusting the composition that glass is formed, the liquidus temperature that also is about to the glass moiety is cut to than moulding lower limit temperature 1085 ℃ low 40 ℃ (promptly 1045 ℃) or low temperature more, but the glass moiety is once change, except the glass liquidus temperature will change thereupon, other important physical, as: thermal expansivity, strain point and density etc. often also can change, even partly characteristic can corrupt to the normal use that hinders glassy product thereupon.Therefore, how to adjust moiety, make when reducing the glass liquidus temperature, other important physical characteristic, also unlikely excessive deterioration promptly becomes the crucial emphasis when adjusting the glass moiety.
At producing the employed glass of liquid-crystal display, particularly produce the employed glass of membrane transistor liquid-crystal display, what require on its physical property is strict especially, therefore, key properties such as thermal expansion coefficient of glass, strain point and density should be listed the emphasis that assessment is considered in the lump in.
Generally speaking, the thermal expansivity of the employed glass of liquid-crystal display of membrane transistor should be lower than 40 * 10
-7/ ℃, as if too high, can influence the tolerance range of follow-up liquid-crystal display processing procedure, glass substrate is fitted assemble difficulty;
Should be higher than 650 ℃ as its strain point,, also can influence the tolerance range of processing procedure, make the contraposition of lithography produce deviation, when serious, more will cause short circuit or open circuit its electric property of deterioration if reduce too much;
Its density generally should be lower than 2.55g/cm
2, if excessive, the weight of the panel of liquid-crystal display is increased, be unfavorable for being used on the portable product.
In recent years, the design of the base plate glass that liquid-crystal display is used and manufacturer are at the composition that base plate glass is formed, the many new manufacturing technologies of development and Design, as United States Patent (USP) the 5th, 811, No. 361, the 5th, 851, No. 939 and the 6th, 060, No. 168 etc., its major defect is:
The disclosed glass moiety of these patents is made glass substrate, because its glass liquidus temperature is all more than 1090 ℃, therefore, these glass will produce the puzzlement of devitrification or crystalline polamer when utilizing the glass tube down-drawing moulding.
Summary of the invention
The composition that the purpose of this invention is to provide the base plate glass that a kind of indicating meter uses, form by preferable proportioning raw materials, make it have the glass liquidus temperature that is lower than 1045 ℃, other important physical characteristic, as thermal expansivity, strain point and density all with aluminum silicate glass close, reach the purpose that prevents to produce devitrification or crystalline polamer.
The object of the present invention is achieved like this: the composition of the base plate glass that a kind of indicating meter is used, this glass are to be combined by following ingredients and weight percent:
(1) silicon oxide (SiO of 56.0-62.0%
2);
(2) aluminum oxide (Al of 13.0-18.0%
2O
3);
(3) boron oxide (B of 9.0-13.5%
2O
3);
(4) strontium oxide of 1.0-8.0% (SrO);
(5) barium oxide of 0.1-8.0% (BaO);
(6) calcium oxide of 3.5-8.5% (CaO);
(7) magnesium oxide of 0-1.0% (MgO);
(8) zinc oxide of 0.1-1.5% (ZnO)
(9) zirconium white of 0.1-1.5% (ZrO);
(10) beryllium oxide of 0-1.0% (BeO);
Wherein the total weight percent of compositions such as calcium oxide, magnesium oxide, zinc oxide, zirconium white and beryllium oxide is between the 4.0-9.0%.
The present invention is further described below in conjunction with preferred embodiment.
Embodiment
The invention provides the composition of the base plate glass that a kind of indicating meter uses, this glass is to be combined by following ingredients and weight percent:
(1) silicon oxide (SiO of 56.0-62.0%
2);
(2) aluminum oxide (Al of 13.0-18.0%
2O
3);
(3) boron oxide (B of 9.0-13.5%
2O
3);
(4) strontium oxide of 1.0-8.0% (SrO);
(5) barium oxide of 0.1-8.0% (BaO);
(6) calcium oxide of 3.5-8.5% (CaO);
(7) magnesium oxide of 0-1.0% (MgO);
(8) zinc oxide of 0.1-1.5% (ZnO)
(9) zirconium white of 0.1-1.5% (ZrO);
(10) beryllium oxide of 0-1.0% (BeO);
Wherein the total weight percent of compositions such as calcium oxide, magnesium oxide, zinc oxide, zirconium white and beryllium oxide is between the 4.0-9.0%.
In the present invention, because the weight percent of each constituent will be according to its physical property, characteristic, structure and the making etc. of the glass that substrate is used, causing in various degree influences, so the weight percent of each constituent must limit to some extent.In these constituents, five kinds of shared weight percent of composition such as silicon oxide, aluminum oxide, boron oxide, strontium oxide and barium oxide are many, and the directions such as characteristic, structure and making of the glass that substrate is used, that is caused influences outbalance, main component of the glass that so these compositions are substrate to be used, wherein
Silicon oxide is the main body that the glass networking forms, and its preferable content is 56.0-62.0%, experimental results show that: if silica content is less than 56.0%, produced glass is with easy devitrification; On the other hand,, it is difficult to general calciner manufacturing if silica content more than 62.0%, will cause the glass melting temperature (Tm) too high, and the also easy devitrification of made glass.
Aluminum oxide is that its preferable content is between 13.0-18.0% in order to the intensity of raising glass structure, if alumina content is less than 13.0%, glass also is subjected to easy devitrification easily extraneous aqueous vapor or chemical reagent and corrodes; If alumina content more than 18.0%, will cause the melting temperature (Tm) of glass too high, be unfavorable for general calciner manufacturing.
The boron oxide effect is as fusing assistant, mainly is the viscosity of glass cream when reducing fusion cast glass, its preferable 9.0-13.5% the most that contains, if boron oxide content is less than 9.0%, its fusing assistant effect promptly can't be given full play to; If boron oxide content more than 13.5%, will significantly reduce the strain point of glass, be unfavorable for the application of successive process.
The preferable content of strontium oxide is between 1.0-8.0%, if the content of strontium oxide is less than 1%, glass is with easy devitrification; If the content of strontium oxide is more than 8.0%, the density of glass can be too high, is unfavorable for the application of product.
Barytic effect is similar to strontium oxide, and its preferable content is 0.1-8.0%, if barytic content is less than 0.1%, glass is with easy devitrification; If barium oxide content is more than 8.0%, the density of glass can be too high, and strain point can significantly reduce.
In the glass that substrate of the present invention is used, except that aforementioned silicon oxide, aluminum oxide, boron oxide, strontium oxide and barium oxide composition, all the other compositions are as five kinds of compositions such as calcium oxide, magnesium oxide, zinc oxide, zirconium white and beryllium oxide, though it is lower to account for overall weight per-cent, but, because the viscosity and the melting degree of the glass cream of these compositions during to fusion cast glass have very significant effects, so in the glass processing procedure that this substrate is used, still have very important effect, wherein
The effect of calcium oxide is to promote the glass fusion, and its preferable content is between 3.5-8.5%, if calcium oxide content be less than 3.5%, can't effectively reduce glass viscosity; If calcium oxide content is more than 8.5%, glass is easy devitrification, and thermal expansivity can significantly improve, and is unfavorable for the application of successive process;
Magnesium oxide is in order to when the fusion cast glass, reduces the viscosity of glass cream, and to reduce the content of bubble wherein or impurity, its preferable content is between 0-1.0%, can not add, and still, content of magnesia was more than 1.0% o'clock, and glass is with easy devitrification.
Zinc oxide also is that its preferable content is between 0.1-1.5%, if zinc oxide content is less than 0.1% in order to the fusion of promotion glass, can't bring into play the effect that promotes the glass fusion, if zinc oxide content is more than 1.5%, glass is with easy devitrification, and strain point can significantly reduce.
Zirconium white also is the viscosity in order to reduction glass, and to promote glass fusion effect, its preferable content is between 0.1-1.5%, if zirconic content is less than 0.1%, does not also have the effect that promotes the glass fusion; If zirconic content is more than 1.5%, glass is with easy devitrification.
Beryllium oxide also is that its preferable content is 0-1.0% in order to the fusion of promotion glass, and more than 1.0%, glass certainly, can not add easy devitrification as if beryllium oxide content.
What pay particular attention to is: compositions such as aforementioned calcium oxide, magnesium oxide, zinc oxide, zirconium white and gasification beryllium, though be in order to melting degree that promotes glass and the thermal expansivity of adjusting glass, but the total content of compositions such as calcium oxide, magnesium oxide, zinc oxide, zirconium white and gasification beryllium, being the best between 4.0-9.0%, if composition total contents such as calcium oxide, magnesium oxide, zinc oxide, zirconium white and gasification beryllium are less than 4.0%, the melting temperature (Tm) of glass will be too high; Otherwise if the total content of compositions such as calcium oxide, magnesium oxide, zinc oxide, zirconium white and gasification beryllium is more than 9.0%, then glass is easy devitrification, and the thermal expansivity of glass can be too high.
Manufacture method of the present invention is earlier with behind the aforementioned component thing uniform mixing, mixing raw material is imported glass fusion groove again, fuse into glass cream after, its temperature is reduced to the required temperature range of moulding, even its range of viscosities remains on 10
4.6-10
5.2The temperature range of pool (poise) again with the glass tube down-drawing moulding, is produced the glass substrate of pre-determined thickness, glass substrate is low cooled off again, and can be cut into the glass substrate finished product that liquid-crystal display is used.
Below with regard to each constituent of the present invention, mixed with Different Weight per-cent, produce different glass samples according to above-mentioned manufacture method again; Be example with these glass samples again, tabulate the difference between the characteristics such as its thermal expansivity, strain point, density and glass liquidus temperature.
Table 1 shows the composition and the characteristic of the glass sample that embodiment of the invention 1-6 is made;
Table 2 shows composition and the characteristic that is different from the made glass sample of Comparative Examples 7-12 of the present invention, promptly with comparative example of the present invention.
Below glass sample in table 1 and table 2, all be with following method manufacturing: each moiety is to get raw material commonly used, according to corresponding weight percent uniform mixing in addition, again with 1600-1650 ℃ temperature, fusion is 6-8 hour in platinum crucible, in the fusion processes, and with platinum stirring rod stirring 2 hours, to promote the homogeneity of each moiety in the glass cream, then glass cream is poured into cooling forming is tabular in the metal form, at this moment, detected at each glass sample, obtain thermal expansivity respectively, strain point, characteristic values such as density and glass liquidus temperature are listed in respectively on the field of table 1 and table 2 correspondence.
The present invention mainly is to detect according to following method when detecting each characteristic value of each glass sample:
(1) thermal expansivity (unit: 10
-7/ ℃) detection:
It is the numbering E228-95 examination criteria of being formulated with reference to American Society for testing and materials (ASTM), with mechanical push rods formula thermal dilatometer and aluminum oxide is reference standard, the elongation of heating and measurement glass sample, temperature range is no longer extended from the room temperature to glass, even because of the temperature till softening the contraction, temperature rise rate is 3 ℃ of per minutes.Thermal expansivity is to be calculated by 100-400 ℃ glass elongation.
(2) detection of strain point (unit: ℃):
Be the numbering C598-93 examination criteria of being formulated with reference to American Society for testing and materials (ASTM), heating is also measured the deformation rate and the temperature relation of glass sample, with the pairing temperature of certain variations rate as strain point.
(3) density (unit: g/cm
3) detection:
Be the numbering C729-75 examination criteria of being formulated with reference to American Society for testing and materials (ASTM), get the block glass that about 2 g of weights do not contain bubble, measure its density in specific gravity liquid with the situation that glass sample drifts along.
(4) detection of glass liquidus temperature (unit: ℃):
Be the numbering C829-81 examination criteria of being formulated with reference to American Society for testing and materials (ASTM), will put into platinum dish, place gradient furnace after 24 hours,, judge its glass liquidus temperature with the crystallization that microscope is measured glass less than the glass of 850/ μ m.
Table 1
| Oxide compound WT% | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 |
| Silicon oxide | ????58.0 | ????57.0 | ????58.3 | ????58.3 | ????56.5 | ????59.5 |
| Aluminum oxide | ????14.5 | ????14.0 | ????13.5 | ????15.5 | ????13.5 | ????16.0 |
| Boron oxide | ????11.0 | ????12.5 | ????13.0 | ????9.5 | ????9.5 | ????10.0 |
| Strontium oxide | ????6.5 | ????6.5 | ????5.5 | ????4.0 | ????7.0 | ????4.0 |
| Barium oxide | ????3.5 | ????3.0 | ????4.5 | ????6.5 | ????7.5 | ????3.0 |
| Calcium oxide | ????5.5 | ????5.0 | ????4.0 | ????4.5 | ????4.8 | ????6.0 |
| Magnesium oxide | ????- | ????0.5 | ????- | ????0.5 | ????0.5 | ????0.5 |
| Zinc oxide | ????0.5 | ????1.0 | ????0.5 | ????0.2 | ????0.5 | ????0.5 |
| Zirconium white | ????0.5 | ????0.5 | ????1.0 | ????0.5 | ????0.2 | ????0.5 |
| Beryllium oxide | ????- | ????- | ????- | ????0.5 | ????- | ????- |
| Five close | ????6.5 | ????7.0 | ????5.5 | ????6.2 | ????6.0 | ????7.5 |
| Thermal expansivity 10 -7/℃ | ????38.6 | ????38.9 | ????37.4 | ????39.4 | ????38.3 | ????39.1 |
| Strain point ℃ | ????656 | ????658 | ????655 | ????660 | ????652 | ????661 |
| Density g/cm 3) | ????2.52 | ????2.53 | ????2.54 | ????2.54 | ????2.54 | ????2.52 |
| The glass liquidus temperature (℃) | ????1030 | ????1035 | ????1035 | ????1030 | ????1035 | ????1030 |
Annotate: five be combined into calcium oxide, magnesium oxide, zinc oxide, zirconium white and gasification beryllium close mutually in addition.
From the embodiment 1-embodiment 6 shown in the table 1, respectively detect data, but clear view goes out:
1, the made glass substrate of the present invention has the glass liquidus temperature that is lower than 1054 ℃, so be applicable to glass tube down-drawing making sheet glass;
2, owing to having, glass is lower than 40 * 10
-7/ ℃ thermal expansivity, and its strain point is higher than 650 ℃, density is less than 2.55g/cm
3Deng characteristic value, the base plate glass of using with required general liquid-crystal display is very close, is applicable to the glass substrate composition of using as liquid-crystal display.
Comparative example 7-12 is shown in Table 2.
Table 2
| Oxide compound WT% | Example 7 | Example 8 | Example 9 | Example 10 | Example 11 | Example 12 |
| Silicon oxide | ????58.0 | ????54.0 | ????57.2 | ????57.0 | ????57.0 | ????63.0 |
| Aluminum oxide | ????12.0 | ????15.5 | ????14.5 | ????15.5 | ????14.0 | ????13.5 |
| Boron oxide | ????9.5 | ????11.5 | ????14.5 | ????11.5 | ????9.5 | ????9.5 |
| Strontium oxide | ????7.0 | ????8.5 | ????2.3 | ????5.5 | ????4.0 | ????9.0 |
| Barium oxide | ????3.5 | ????3.5 | ????1.5 | ????3.0 | ????9.0 | ????1.0 |
| Calcium oxide | ????9.0 | ????6.0 | ????6.0 | ????5.0 | ????4.0 | ????4.0 |
| Magnesium oxide | ????0.5 | ????- | ????2.0 | ????- | ????- | ????- |
| Zinc oxide | ????0.5 | ????0.5 | ????1.0 | ????2.5 | ????- | ????- |
| Zirconium white | ????- | ????0.5 | ????0.5 | ????- | ????2.5 | ????- |
| Beryllium oxide | ????- | ????- | ????0.5 | ????- | ????- | ????- |
| Five close | ????10.0 | ????7.0 | ????10.0 | ????7.5 | ????6.5 | ????4.0 |
| Thermal expansivity 10 -7/℃ | ????40.2 | ????39.9 | ????39.4 | ????37.8 | ????38.3 | ????37.6 |
| Strain point ℃ | ????656 | ????650 | ????647 | ????645 | ????644 | ????665 |
| Density g/cm3 | ????2.55 | ????2.56 | ????2.53 | ????2.55 | ????2.58 | ????2.56 |
| The glass liquidus temperature (℃) | ????1095 | ????1100 | ????1100 | ????1110 | ????1090 | ????1110 |
Annotate: five be combined into calcium oxide, magnesium oxide, zinc oxide, zirconium white and gasification beryllium close mutually in addition.
From the comparative example shown in the table 2, it has been to use the traditional moiety different with the present invention, goes out but detect the data clear view from each:
1, the made glass substrate of comparative example all has the glass liquidus temperature that is higher than 1054 ℃, so when making sheet glass with the glass tube down-drawing method of forming, devitrification or crystalline problem take place very easily;
2, in addition, by respectively detecting in the data of table 2, also clear showing not, the thermal expansivity of the glass substrate that comparative example 7 is made is higher, and the strain point of the made glass substrate of comparative example 9-11 is on the low side, the density of comparative example 8,11 and 12 made glass substrates is higher, all is not suitable as the composition of the glass substrate of liquid-crystal display.
From relatively respectively detecting data shown in embodiments of the invention table 1 and the comparative example table 2, but clear view goes out:
Use the made glass substrate of glass moiety of the present invention, all have the glass liquidus temperature that is lower than 1054 ℃, and its thermal expansivity is lower than 40 * 10
-7/ ℃, its strain point is higher than 650 ℃, and density all keeps less than 2.55g/cm
3Deng characteristic value, the aluminum silicate glass of using with required general liquid-crystal display is very close, be applicable to the base plate glass of using as the active-matrix formula liquid-crystal display of thickness 0.2-1.2mm, with effective solution conventional substrate glass and liquid-crystal display in making processes, the problems that taken place.
The above only is preferred embodiment of the present invention, allly is familiar with this skill personage, according to the disclosed technology contents of the present invention, think easily and equivalence change, all belong within protection scope of the present invention.
Claims (16)
1, the composition of the base plate glass used of a kind of indicating meter, it is characterized in that: it includes following ingredients and weight percent combines:
(1) silicon oxide of 56.0-62.0%;
(2) aluminum oxide of 13.0-18.0%;
(3) boron oxide of 9.0-13.5%;
(4) strontium oxide of 1.0-8.0%;
(5) barium oxide of 0.1-8.0%;
(6) calcium oxide of 3.5-8.5%.
2, the composition of the base plate glass used of indicating meter according to claim 1, it is characterized in that: be earlier with behind the described constituent uniform mixing, again mixing raw material imported glass fusion groove, fuse into glass cream after, its temperature is reduced to the required temperature range of moulding, makes its range of viscosities remain on 10
4.6-10
5.2The temperature range of pool again with the glass tube down-drawing moulding, is produced the glass substrate of pre-determined thickness, glass substrate is low cooled off again, and can be cut into the glass substrate finished product that liquid-crystal display is used.
3, the composition of the base plate glass used of indicating meter according to claim 1 it is characterized in that: further comprising the magnesium oxide composition of 0-1.0%.
4, the composition of the base plate glass used of indicating meter according to claim 1 it is characterized in that: further comprising the zinc oxide composition of 0.1-1.5%.
5, the composition of the base plate glass used of indicating meter according to claim 1 it is characterized in that: further comprising the alumina composition of 0.1-1.5%.
6, the composition of the base plate glass used of indicating meter according to claim 1 it is characterized in that: further comprising the beryllium oxide composition of 0-1.0%.
7, the composition of the base plate glass used of indicating meter according to claim 3 it is characterized in that: further comprising the zinc oxide composition of 0.1-1.5%.
8, the composition of the base plate glass used of indicating meter according to claim 3 it is characterized in that: further comprising the alumina composition of 0.1-1.5%.
9, the composition of the base plate glass used of indicating meter according to claim 3 it is characterized in that: further comprising the beryllium oxide composition of 0-1.0%.
10, the composition of the base plate glass used of indicating meter according to claim 4 it is characterized in that: further comprising the zirconium white composition of 0.1-1.5%.
11, the composition of the base plate glass used of indicating meter according to claim 4 it is characterized in that: further comprising the beryllium oxide composition of 0-1.0%.
12, the composition of the base plate glass used of indicating meter according to claim 5 it is characterized in that: further comprising the beryllium oxide composition of 0-1.0%.
13, the composition of the base plate glass used of indicating meter according to claim 7 it is characterized in that: further comprising the zirconium white composition of 0.1-1.5%.
14, the composition of the base plate glass used of indicating meter according to claim 7 it is characterized in that: further comprising the beryllium oxide composition of 0-1.0%.
15, the composition of the base plate glass used of indicating meter according to claim 12 it is characterized in that: further comprising the zinc oxide composition of 0.1-1.5%.
16, the composition of the base plate glass used of indicating meter according to claim 15, it is characterized in that: wherein the total weight percent of calcium oxide, magnesium oxide, zinc oxide, zirconium white and beryllium oxide composition is between the 4.0-9.0%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031001041A CN1515513A (en) | 2003-01-02 | 2003-01-02 | Composition of base plate glass for display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031001041A CN1515513A (en) | 2003-01-02 | 2003-01-02 | Composition of base plate glass for display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1515513A true CN1515513A (en) | 2004-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031001041A Pending CN1515513A (en) | 2003-01-02 | 2003-01-02 | Composition of base plate glass for display |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445225C (en) * | 2006-12-20 | 2008-12-24 | 彩虹彩色显像管总厂 | Composition for optoelectronic display device substrate glass |
| CN101913764A (en) * | 2010-07-23 | 2010-12-15 | 北京工业大学 | Alkali-free alumina silicate glass with high strain point |
| CN107244805A (en) * | 2017-06-12 | 2017-10-13 | 合肥市惠科精密模具有限公司 | A kind of TFT LCD substrates frit composition |
| CN113087502A (en) * | 2021-03-29 | 2021-07-09 | 电子科技大学 | High-strength high-modulus magnesium-aluminum silicon substrate material and preparation method thereof |
-
2003
- 2003-01-02 CN CNA031001041A patent/CN1515513A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445225C (en) * | 2006-12-20 | 2008-12-24 | 彩虹彩色显像管总厂 | Composition for optoelectronic display device substrate glass |
| CN101913764A (en) * | 2010-07-23 | 2010-12-15 | 北京工业大学 | Alkali-free alumina silicate glass with high strain point |
| CN107244805A (en) * | 2017-06-12 | 2017-10-13 | 合肥市惠科精密模具有限公司 | A kind of TFT LCD substrates frit composition |
| CN113087502A (en) * | 2021-03-29 | 2021-07-09 | 电子科技大学 | High-strength high-modulus magnesium-aluminum silicon substrate material and preparation method thereof |
| CN113087502B (en) * | 2021-03-29 | 2022-01-25 | 电子科技大学 | High-strength high-modulus magnesium-aluminum silicon substrate material and preparation method thereof |
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