CN103011585A - Environment-friendly liquid crystal base plate glass and preparation method thereof - Google Patents
Environment-friendly liquid crystal base plate glass and preparation method thereof Download PDFInfo
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- CN103011585A CN103011585A CN201210575202XA CN201210575202A CN103011585A CN 103011585 A CN103011585 A CN 103011585A CN 201210575202X A CN201210575202X A CN 201210575202XA CN 201210575202 A CN201210575202 A CN 201210575202A CN 103011585 A CN103011585 A CN 103011585A
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Abstract
The invention discloses environment-friendly liquid crystal base plate glass and a preparation method thereof. Oxides in the glass comprise the following components by molar percent: 60.0-70.0% of SiO2, 11.5-12.0% of Al2O3, 9.0-10.0% of B2O3, 6.5-8.0% of CaO, 0-2.2% of SrO, 0-2.4% of BaO, 0.2-0.45% of ZnO and less than 0.15% of SnO2. The preparation method comprises the following steps of: weighing and mixing to prepare a glass mixture and adding the mixture into a kiln; smelting at 1500-1650 DEG C and clarifying; and finally, drawing to obtain the liquid crystal base plate glass, wherein before all the components are agitated and mixed, silicon oxide and boron oxide are firstly subjected to a prefabricating process. The glass composition is suitable for producing the liquid crystal base plate glass with the area of more than 1.4 m<2> and the air bubble content of the product glass is that the quantity is less than 0.1 per kilogram.
Description
Technical field
The invention belongs to the glass substrate technical field, relate to a kind of environmental protection liquid crystal substrate glass and preparation method thereof.
Background technology
LCD(LCD:Liquid Crystal Display) glass substrate (Glass Substrate) refers to liquid crystal display glass substrate, a liquid crystal panel needs two sheet glass substrates, wherein a slice is used in colored filter, and a slice is used on transparency electrode.
When preparation TFT-LCD panel, need to make various films, circuit and figure on a surface of glass substrate, at first to form nesa coating, insulating film, semi-conductor (polysilicon, amorphous silicon etc.) film and metallic membrane on the base plate glass surface by technology such as sputter, chemical vapor deposition (CVD)s, then form various circuit and figure by optical lithography.In film deposition and photoetch stage, glass substrate will stand various thermal treatments and chemical action, and wherein the forming process of semiconductor film will stand 500～600 ℃ of pyroprocessing.Usually, the glass as TFT type liquid crystal display substrate should satisfy following character requirement:
Basic alkali-free metal oxide in the glass, in high-temperature heat treatment process, alkalimetal ion can be diffused into semiconductor film, the performance of infringement semiconductor film.
Because base plate glass needs to clean and etching through a large amount of reagent, for avoiding separating out of composition in the glass, glass must have high chemical stability, particularly has strong acid-and base-resisting performance.
Glass has the coefficient of expansion that is complementary with polysilicon and amorphous silicon material, and its optimum value is about 30～33 * 10
-7/ ℃, the difference between the two generally should not surpass 20%.
Glass should have high thermotolerance, prevents contraction and the distortion of sheet glass in the heat treatment process, and its strain point should not be lower than 650 ℃, even higher.
Glass has lower density, particularly for the large size flat-panel screens, wishes to alleviate the weight of glass substrate as far as possible.
For the large-scale LCD glass substrate, thickness substrate area when 0.7mm or 0.5mm reaches 1m
2～2m
2, or larger size.For prevent sheets of glass transportation, in the course of processing owing to the gravity reason causes the sagging distortion of glass and broken etc., must improve the bending strength of glass substrate, deformation does not occur when making base plate glass be subjected to external force or self gravitation or less deformation occurs.
In addition, in order to adapt to liquid-crystal display constantly to future developments such as large size, high definition, high brightness, more excellent in performance is proposed the TFT-LCD liquid crystal substrate glass.
Because " back transmission " radiation modality is adopted in the demonstration of LCD, the luminous utilization ratio of backlight is subject to the organic dye impacts such as liquid crystal material angle, color filter plate, the luminous utilization ratio of backlight is not high, brightness is significantly not as technique of display such as CRT, PDP and OLED, and therefore improve the light source utilization ratio is the direction that liquid-crystal display is made great efforts to develop to reach lifting brightness always.So, improve the transmittance of liquid crystal substrate glass and can better bring into play its effect.Main flow base plate glass transmittance reaches 90% at present, and transmittance is more high better.
Except above-mentioned character required, aspect visual appearance, base plate glass should have sufficiently high uniformity coefficient, planeness and without macroscopic defects.Angle from glass smelting and moulding, glass also should have fusibility, can not only guarantee to produce high quality, try one's best and lack the original sheet glass of defective, also should make the glass smelting temperature unsuitable too high, too high glass melting temperature will bring difficulty to the glass substrate producer.
Produce at present in several maturation methods of liquid crystal substrate glass, the most outstanding with the overflow method of forming.Because afterwards surface grinding and the polishing of operation of base plate glass of adopting the overflow method of forming to produce.
Can find out that from the requirement of above-mentioned LCD glass substrate the LCD substrate is very high to the requirement of glass physics, chemistry and technological property.Therefore in order to satisfy the above-mentioned glass physical properties requirement that must satisfy, general TFT-LCD liquid crystal substrate glass adopts RO-SiO
2Al
2O
3B
2O
3The silicate glass containing boron and aluminium without alkali of system.
Another difficult problem of TFT-LCD liquid crystal substrate glass production comes from without owing a requirement.So-called glass owes a little to refer to bubble, glass knot, platinum grain and calculus etc.The resolving power of liquid-crystal display is higher, requires stricter for the sheet glass latent defect.The light that backlight sends must see through the pixel of one by one grid formation and then form image.Exist in the glass any light tight or hinder the perfection of owing a little all can affect image that light passes through, it is fixed that the tolerance of owing the spot size size is come according to elemental area, the highest tolerance limit of generally owing an area is 25% of single elemental area, and for example: the indicating meter with 100 μ m Pixel Dimensions can allow 50 μ m sizes to owe a little.
In the production technique of the overflow method of forming, the elimination that very crucial is to bubble.Historically, the bubble of eliminating in the glass generally is to use the such variable valency metal oxide compound of arsenic.Because low temperature oxygen uptake and the high temperature of arsenic oxide arsenoxide uniqueness are put oxygen characteristic, in the glass clarifying process, help preferably glass metal to discharge bubble.Yet itself belongs to severe poisonous chemicals arsenic oxide arsenoxide, and its operation process is high-risk operations to operator.In recent years, the environment that arsenic oxide arsenoxide brings as finings and the problem of healthy aspect more and more were subject to international attention, so this area is always for making low arsenic or Arsenic-free glass effort.
Except arsenic as finings, people also attempt to use antimony to make finings.Yet also there is the problem of environment and healthy aspect in antimony itself.And compare with arsenic, antimony is lower as the validity of finings.
Summary of the invention
The problem that the present invention solves is to provide a kind of environmental protection liquid crystal substrate glass and preparation method thereof, can effectively promote frit to melt and clarification through silicon oxide and boron oxide premix, and then few with even not using poisonous arsenic oxide arsenoxide as finings.
The present invention is achieved through the following technical solutions:
A kind of environmental protection liquid crystal substrate glass by the molar percentage of oxide compound in the liquid crystal substrate glass, comprises following composition:
SiO
2： 60.0～70.0%；
Al
2O
3： 11.5～12.0%；
B
2O
3： 9.0～10.0%；
CaO： 6.5～8.0%
SrO： 0～2.2%
BaO： 0～2.4%
ZnO： 02～045%
SnO
2： ＜0.15%。
Harmful micro amount of oxygen compound is in the described control liquid crystal substrate glass:
By mole% meter, MgO＜0.05%; ZrO
2: 0～0.05%; Na
2O:＜0.2%;
And, K
2O＜20ppm; Fe
2O
3:＜50ppm; As
2O
3:＜50ppm; Sb
2O
3:＜20ppm.
This liquid crystal substrate glass is in 500～650nm wavelength, and light transmission rate is greater than 92%, and bending strength is greater than 110MPa; Strain point is higher than 650 ℃, and the thermal expansivity in 0～300 ℃ of scope is 28～39 * 10
-7/ ℃.
In this liquid crystal substrate glass, by SiO
2, B
2O
3And Al
2O
3Form the glass network structure; SiO
2Introduced B by silica powder
2O
3Introduced Al by boric acid
2O
3Introduced by aluminum oxide powder.
In this liquid crystal substrate glass, CaO, SrO and BaO are the glass network instrumentality; CaO is introduced by calcium carbonate, and SrO is introduced by Strontium carbonate powder, and BaO is introduced by barium carbonate.
In this liquid crystal substrate glass, ZnO increases the chemical resistant properties of glass, and ZnO is introduced by zinc oxide;
SnO
2Be melting promotor and finings, SnO
2Introduced by stannic oxide.
The principal constituent mass content of described each frit is greater than 99%.
Every kilogram of number of air bubble content in this liquid crystal substrate glass＜0.1, bubble size is＜0.1mm.
A kind of preparation method of environmental protection liquid crystal substrate glass may further comprise the steps:
1) take by weighing the frit that comprises silica powder, aluminum oxide powder, boric acid, calcium carbonate, Strontium carbonate powder, strontium nitrate, barium carbonate, zinc oxide and stannic oxide, make the molar percentage meter of oxide compound in the liquid crystal substrate glass, comprise following composition:
SiO
2： 60.0～70.0%；
Al
2O
3： 11.5～12.0%；
B
2O
3： 9.0～10.0%；
CaO： 6.5～8.0%
SrO： 0～22%
BaO： 0～2.4%
ZnO： 0.2～0.45%
SnO
2： ＜0.15%；
2) silica powder and boron oxide powder are mixed according to the molar ratio of Si:B=4.30～5.50 after, found at 800～1000 ℃, be incubated 6～8 hours, then cooling, through pulverize, screening obtains the pre-composition of particle diameter between 0.045～0.075mm;
3) pre-composition is mixed with all the other raw materials, make liquid crystal substrate glass according to overflow downdraw.
Described with pre-composition with after all the other raw materials mix, through after 1500～1650 ℃ found and clarify, make liquid crystal substrate glass through overflow down draw.
Compared with prior art, the present invention has following useful technique effect:
Environmental protection liquid crystal substrate glass provided by the invention and preparation method thereof, can effectively promote frit to melt and clarification through silicon oxide and boron oxide premix, reduce poisonous finings arsenic oxide arsenoxide, weisspiessglanz usage quantity, behind silicon oxide and boron oxide premix, increase the ability that raw material melts rapidly mixing, after having reduced arsenic oxide arsenoxide content, still can produce qualified glass.Has the characteristic that liquid crystal display device requires the general physical properties of base plate glass.
Environmental protection liquid crystal substrate glass provided by the invention and preparation method thereof, resulting liquid crystal substrate glass form and are fit to produce area at 1.4m
2Above liquid crystal substrate glass, by the clarification of tank furnace melting and platinum pipeline, the air bubble content per kilogram number of product glass＜0.1 (bubble size is:＜0.1mm).Embodiment
The present invention is described in further detail below in conjunction with specific embodiment, and the explanation of the invention is not limited.
As the transparent glass substrate of liquid-crystal display, use be silicate glass containing boron and aluminium without alkali.Because glass can not contain R
2The alkali-metal composition of O monovalence is so added multiple RO diatomic base metal-salt to promote the formation of glass network in the glass ingredient.This glass uses SiO in a large number
2, make it have very high strain point and good chemical resistant properties, but also brought the glass melting temperature height simultaneously and clarified the problems such as difficult.
Because a large amount of SiO that use
2Refractory material (SiO
2And B 1710 ℃ of fusing points),
2O
3Be good melting promotor and good network added body, in glass ingredient, added B
2O
3As melting promotor to reduce the glass manufacture temperature.The B of appropriate amount
2O
3Can accelerate SiO
2Melting, the formation of silicate reflection can be converted to lower temperature province, simultaneously since the reduction of formation, surface tension or the viscosity of minimum eutectic batch composition is infiltrated strongly, thereby has improved homogenizing.Because the fusing speed of preparing burden has not only been accelerated in the adding of melting promotor, has reduced glass melting temperature, has also increased required distance and the time in glass clarifying stage simultaneously, the melting of accelerating silica powder has become the key point of clarification quality.
Because B
2O
3Fusing point is very low, and in the moment of batching inflow kiln, the raw material of normal temperature joins rapidly in 1500 ℃ of tank furnace environment, low-melting B
2O
3There is the volatilization phenomenon with silicon, aluminium before forming glass.Owing to add fashionable boron oxide and silicon oxide all is particulate state, form eutectic or form silicate network structure relatively more difficult.
Few usefulness of the present invention, usefulness not even, the liquid crystal substrate glass of poisonous finings arsenic oxide arsenoxide and weisspiessglanz, the every physicochemical property of this glass meets general liquid crystal substrate glass, and by in advance to the founding in advance of some raw material, at first with SiO
2And B
2O
3Found in advance together, namely form first network eutectic (perhaps B
2O
3SiO
2Inclusion).
Concrete melting mode is with SiO
2And B
2O
3Powder mix fully mix SiO
2Has≤particle diameter of 0.020mm purity＞99.50%; B
2O
3Foreign matter content＜0.05%.In 450 ℃～600 ℃ temperature ranges, found after two kinds of powders mix, then through overcooling, pulverizing, screening, finally form particle diameter at the SiO of 0.045～0.075mm
2And B
2O
3Mixture.In order to reach the proportioning of producing the liquid crystal substrate glass requirement, the Si:B ratio of this mixture is set as 4.30～5.50, and then improves the glass melting clarification.
Below in conjunction with specific embodiment the present invention is described in further detail.
Liquid crystal substrate glass of the present invention is by SiO
2, B
2O
3And Al
2O
3Formed glass network structure, so must interpolation can introduce SiO in the frit side
2, Al
2O
3, B
2O
3Composition, and SiO
2It is the material of the maximum and infusibility of introducing amount.In initial mixture production process, B
2O
3Melting temperature (Tm) be 450 ℃, so the melting of mixture just must be more than 450 ℃, but too high temperature makes B easily
2O
3Volatilization more serious, so temperature fixes on 450 ℃～600 ℃.
The initial mixture of founding just allows SiO in advance
2And B
2O
3Be dissolved in together, so SiO
2Raw material silica powder must satisfy the needs that liquid crystal substrate glass is produced, in order to promote to melt, silica powder should have≤particle diameter of 0.020mm, purity＞99.50%; Boric anhydride (B
2O
3) experience melts and resolidification in fusion processes, so particle diameter is not had more requirement, but foreign matter content necessary＜0.05%, to prevent from introducing the objectionable impurities in the glass.SiO
2Content is controlled at 60.0～70.0%, B
2O
3Content be controlled at 9.0～10.0%.
The content of aluminum oxide is 11.5～12.0%, the Al of high-content
2O
3Help the improvement of strain point of glass, bending strength, but the too high easy crystallization of glass that then makes.Aluminum oxide is controlled at 11.5～12.0% in the glass ingredient of the present invention.
RO(R is Mg, Ca, Sr, Ba) be the glass network instrumentality, the kind of use is numerous, and raw material and the amount of introducing RO are as follows.
The raw material of introducing CaO is calcium carbonate.Ca works the effect of gathering to glass structure.CaO can regulate and reduce high temperature viscosity and significantly improve the melting behaviour of glass and do not reduce the strain point of glass, and too much CaO then can reduce the glass chemical resistant properties.In the glass ingredient, the content of CaO is controlled at 6.5～8.0%.
SrO and BaO all have the effect that increases the glass chemical-resistant stability and improve the anti-crystallization of glass.But a large amount of SrO and BaO can cause glass density and the coefficient of expansion to increase.SrO and BaO have special improvement glass chemical-resistant component.The raw material of introducing SrO is Strontium carbonate powder, and SrO content is controlled at 0～2.2% in the glass, and the raw material of introducing BaO is barium carbonate, and BaO content is controlled at 0～2.4% in the glass.
ZnO can reduce the glass high temperature viscosity, increases the chemical resistant properties of glass, reduces the thermal expansivity of glass.But ZnO had reduced the strain point of glass when content was too much.The introducing material of ZnO is zinc oxide among the present invention, and ZnO content is controlled at 0.2～0.45% in the glass.
SnO
2Be the oxide compound that appraises at the current rate, in this glass forms, add as melting promotor and finings.But too much SnO
2Glass is separated out do not wish the calculus that occurs, therefore, SnO
2Introduced the SnO in the glass by stannic oxide
2Content is controlled at＜and 0.15%.
Other oxide compound is as the inevitable composition of introducing in the raw material, and majority belongs to objectionable constituent, therefore the micro-oxide content in the glass also is necessary to control.By mole% expression:
MgO：＜0.05%；ZrO
2：0～0.05%；Na
2O：＜0.2%；K
2O：＜20ppm；Fe
2O
3：＜50ppm；
And the As in the glass
2O
3And Sb
2O
3Content is very low, is respectively As
2O
3:＜50ppm, Sb
2O
3:＜20ppm.
Glass adopts above material can enough reach all physical and chemical performances that liquid crystal substrate glass should have.Glass is in 500～650nm wavelength, and light transmission rate is greater than 92%, and bending strength is greater than 110MPa; Strain point is higher than 650 ℃, and the thermal expansivity in 0～300 ℃ of scope is 28～39 * 10
-7/ ℃.
Further, in order to have improved the effect in glass clarifying stage, before all the components mixed, silicon oxide and boron oxide at first carried out a prefabricated process, and process is as follows:
1) silica powder and boron oxide powder proportionally mix (Si:B is 4.30～5.50);
2) 6-8 hour is founded, is incubated to silica powder, boron oxide powder after mixing in 800 ℃ of-1000 temperature ranges;
3) cool off the mixture that this melts, obtain the pre-composition of particle diameter between 0.045～0.075mm through pulverizing, sieving.
Frit through this process can effectively promote frit to melt and clarification, and then alternative arsenic oxide arsenoxide finings.Raw material melts rapidly the ability of mixing, still can produce qualified glass after having reduced arsenic oxide arsenoxide content.This glass forms and is fit to produce area at 1.4m
2Above liquid crystal substrate glass, by the clarification of tank furnace melting and platinum pipeline, the air bubble content per kilogram number of product glass＜0.1 (bubble size is:＜0.1mm).
The below provides specific embodiment as shown in table 1:
Table 1
Prescription composition preparation method by table 1 is:
1) takes by weighing raw material by prescription;
2) silica powder and boron oxide powder are mixed according to the molar ratio of Si:B=4.30～5.50 after, found at 800～1000 ℃, be incubated 6～8 hours, then cooling, through pulverize, screening obtains the pre-composition of particle diameter between 0.045～0.075mm;
3) pre-composition is mixed with all the other raw materials, adopt the continuous melting stove, through after 1500～1650 ℃ found and clarify, make liquid crystal substrate glass through overflow down draw.Record various testing datas.Material side's successful of model mixture raw material has reduced and still can produce bubble behind the content of arsenic oxide arsenoxide less than 0.1/kilogram sheet glass.
Claims (10)
1. an environmental protection liquid crystal substrate glass is characterized in that, by the molar percentage of oxide compound in the liquid crystal substrate glass, comprises following composition:
SiO
2： 60.0～70.0%；
Al
2O
3： 11.5～12.0%；
B
2O
3： 9.0～10.0%；
CaO： 6.5～8.0%
SrO： 0～2.2%
BaO： 0～2.4%
ZnO： 0.2～0.45%
SnO
2： ＜0.15%。
2. environmental protection liquid crystal substrate glass as claimed in claim 1 is characterized in that, harmful micro amount of oxygen compound is in the control liquid crystal substrate glass:
By mole% meter, MgO＜0.05%; ZrO
2: 0～0.05%; Na
2O:＜0.2%;
And, K
2O＜20ppm; Fe
2O
3:＜50ppm; As
2O
3:＜50ppm; Sb
2O
3:＜20ppm.
3. environmental protection liquid crystal substrate glass as claimed in claim 1 is characterized in that, this liquid crystal substrate glass is in 500～650nm wavelength, and light transmission rate is greater than 92%, and bending strength is greater than 110MPa; Strain point is higher than 650 ℃, and the thermal expansivity in 0～300 ℃ of scope is 28～39 * 10
-7/ ℃.
4. environmental protection liquid crystal substrate glass as claimed in claim 1 is characterized in that, in this liquid crystal substrate glass, by SiO
2, B
2O
3And Al
2O
3Form the glass network structure; SiO
2Introduced B by silica powder
2O
3Introduced Al by boric acid
2O
3Introduced by aluminum oxide powder.
5. environmental protection liquid crystal substrate glass as claimed in claim 1 is characterized in that, in this liquid crystal substrate glass, CaO, SrO and BaO are the glass network instrumentality; CaO is introduced by calcium carbonate, and SrO is introduced by Strontium carbonate powder, and BaO is introduced by barium carbonate.
6. environmental protection liquid crystal substrate glass as claimed in claim 1 is characterized in that, in this liquid crystal substrate glass, ZnO increases the chemical resistant properties of glass, and ZnO is introduced by zinc oxide;
SnO
2Be melting promotor and finings, SnO
2Introduced by stannic oxide.
7. such as any one described environmental protection liquid crystal substrate glass of claim 4～6, it is characterized in that the principal constituent mass content of each frit is greater than 99%.
8. environmental protection liquid crystal substrate glass as claimed in claim 1 is characterized in that, every kilogram of number of the air bubble content in this liquid crystal substrate glass＜0.1, and bubble size is＜0.1mm.
9. the preparation method of an environmental protection liquid crystal substrate glass is characterized in that, may further comprise the steps:
1) take by weighing the frit that comprises silica powder, aluminum oxide powder, boric acid, calcium carbonate, Strontium carbonate powder, strontium nitrate, barium carbonate, zinc oxide and stannic oxide, make the molar percentage meter of oxide compound in the liquid crystal substrate glass, comprise following composition:
SiO
2： 60.0～70.0%；
Al
2O
3： 11.5～12.0%；
B
2O
3： 9.0～10.0%；
CaO： 6.5～8.0%
SrO： 0～2.2%
BaO： 0～2.4%
ZnO： 0.2～0.45%
SnO
2： ＜0.15%；
2) silica powder and boron oxide powder are mixed according to the molar ratio of Si:B=4.30～5.50 after, found at 800～1000 ℃, be incubated 6～8 hours, then cooling, through pulverize, screening obtains the pre-composition of particle diameter between 0.045～0.075mm;
3) pre-composition is mixed with all the other raw materials, make liquid crystal substrate glass according to overflow downdraw.
10. the preparation method of environmental protection liquid crystal substrate glass as claimed in claim 9 is characterized in that, just pre-composition is with after all the other raw materials mix, and through after 1500～1650 ℃ found and clarify, makes liquid crystal substrate glass through overflow down draw.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104402219A (en) * | 2014-11-10 | 2015-03-11 | 湖北新华光信息材料有限公司 | Preparation method of phosphate optical glass and phosphate optical glass produced by the preparation method |
| CN105621883A (en) * | 2016-02-02 | 2016-06-01 | 彩虹（合肥）液晶玻璃有限公司 | Liquid crystal substrate glass and preparation method thereof |
| CN108196387A (en) * | 2018-01-02 | 2018-06-22 | 重庆京东方光电科技有限公司 | Underlay substrate and its manufacturing device, preparation method and display device |
| CN112794641A (en) * | 2020-12-28 | 2021-05-14 | 北京工业大学 | TFT substrate glass with low surface tension and preparation method thereof |
| CN114538754A (en) * | 2022-04-25 | 2022-05-27 | 武汉荣佳达光电科技有限公司 | Carrier plate glass production system device and method |
| CN115557695A (en) * | 2016-08-23 | 2023-01-03 | Ａｇｃ株式会社 | Alkali-free glass |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1222482C (en) * | 2000-01-12 | 2005-10-12 | 肖特玻璃制造厂 | Silicate glass containing boron and aluminium without alkali and its use |
| CN101544467A (en) * | 2009-04-28 | 2009-09-30 | 陕西彩虹电子玻璃有限公司 | Crystal liquid substrate glass material and preparation method thereof |
| CN101568495A (en) * | 2007-06-08 | 2009-10-28 | 日本电气硝子株式会社 | Alkali-free glass and alkali-free glass substrate |
| US20100173766A1 (en) * | 2007-07-31 | 2010-07-08 | Lauren Kay Cornelius | Glass compositions compatible with downdraw processing and methods of making and using thereof |
-
2012
- 2012-12-26 CN CN201210575202XA patent/CN103011585A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1222482C (en) * | 2000-01-12 | 2005-10-12 | 肖特玻璃制造厂 | Silicate glass containing boron and aluminium without alkali and its use |
| CN101568495A (en) * | 2007-06-08 | 2009-10-28 | 日本电气硝子株式会社 | Alkali-free glass and alkali-free glass substrate |
| US20100173766A1 (en) * | 2007-07-31 | 2010-07-08 | Lauren Kay Cornelius | Glass compositions compatible with downdraw processing and methods of making and using thereof |
| CN101544467A (en) * | 2009-04-28 | 2009-09-30 | 陕西彩虹电子玻璃有限公司 | Crystal liquid substrate glass material and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104402219A (en) * | 2014-11-10 | 2015-03-11 | 湖北新华光信息材料有限公司 | Preparation method of phosphate optical glass and phosphate optical glass produced by the preparation method |
| CN104402219B (en) * | 2014-11-10 | 2017-02-15 | 湖北新华光信息材料有限公司 | Preparation method of phosphate optical glass and phosphate optical glass produced by the preparation method |
| CN105621883A (en) * | 2016-02-02 | 2016-06-01 | 彩虹（合肥）液晶玻璃有限公司 | Liquid crystal substrate glass and preparation method thereof |
| CN115557695A (en) * | 2016-08-23 | 2023-01-03 | Ａｇｃ株式会社 | Alkali-free glass |
| CN108196387A (en) * | 2018-01-02 | 2018-06-22 | 重庆京东方光电科技有限公司 | Underlay substrate and its manufacturing device, preparation method and display device |
| CN112794641A (en) * | 2020-12-28 | 2021-05-14 | 北京工业大学 | TFT substrate glass with low surface tension and preparation method thereof |
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