CN106673455A - Composition for processing surface of glass substrate of liquid crystal display - Google Patents
Composition for processing surface of glass substrate of liquid crystal display Download PDFInfo
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- CN106673455A CN106673455A CN201611268678.3A CN201611268678A CN106673455A CN 106673455 A CN106673455 A CN 106673455A CN 201611268678 A CN201611268678 A CN 201611268678A CN 106673455 A CN106673455 A CN 106673455A
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- glass substrate
- liquid crystal
- crystal display
- water
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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
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Liquid Crystal (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The invention relates to a composition for processing the surface of a glass substrate of a liquid crystal display. The composition contains the following components in percentage by mass: 5%-8% of hydrochloric acid (HCl), 2%-5% of hydrofluoric acid (HF), 1%-2% of chitosan, 0.5%-1% of polydimethylsiloxane, 0.5%-1% of hydroxypropyl-beta-cyclodextrin and the balance of water.
Description
Technical field
The present invention relates to be used for the compositionss that glass substrate of liquid crystal display etches pretreatment.
Background technology
When thinning process is carried out to glass substrate of liquid crystal display, when the hydrofluoric acid etch of employing carries out thinning side,
Can there is pit because local crosses and loses in glass baseplate surface, and needs are carrying out prolonged polishing.And when thinning is processed
Glass substrate has been completed encapsulation, once produce serious crossing losing (often because of the local tiny flaw of glass), can cause whole
It is individual to scrap, the pit for occurring is processed in order to reduce thinning, improve the yields after thinning treatment process, need in thinning before processing
Pretreatment is carried out to the glass substrate of liquid crystal display screen, existing pretreating process adds a small amount of Fluohydric acid., salt based on concentrated sulphuric acid
Sour to be configured to pretreatment fluid, due to adding substantial amounts of concentrated sulphuric acid, the waste liquid produced after pretreatment process is difficult to be processed.
Therefore a kind of new glass substrate of liquid crystal display thinning pretreatment product is provided, is reduced on the basis for the treatment of effect is improved
Disposal of pollutants, becomes problem demanding prompt solution in prior art.
The content of the invention
To solve aforementioned technical problem, the invention provides for the compositionss of glass substrate of liquid crystal display surface treatment
And its handling process, by optimization formulation and handling process, successfully realize avoid concentrated sulphuric acid etc. cause severe contamination and
It is difficult to the use of the raw material of process.
The invention provides for the compositionss of glass substrate of liquid crystal display surface treatment, it is characterised in that the combination
Thing is composed of the following components：
The hydrochloric acid (HCl) of mass percentage content 5-8%, the Fluohydric acid. (HF) of mass percentage content 2%~5%, matter
The shitosan of amount degree 1~2%, the polydimethylsiloxane of mass percentage content 0.5~1%, mass percent
0.5%~1% HP-β-CD and the water of surplus.
The described compositionss for glass substrate of liquid crystal display surface treatment, it is characterised in that match somebody with somebody in the following manner
System,
1) recipe quantity hydrochloric acid, Fluohydric acid. are mixed, and add suitable quantity of water to dilute,
2) recipe quantity shitosan is added into step 1) in the mixed liquor that obtains and dissolve；
3) HP-β-CD of recipe quantity is dissolved in suitable quantity of water to being completely dissolved, adds the poly- diformazan of recipe quantity
Radical siloxane；
3) by step 2) mixed liquor that obtains is respectively added slowly to step 3) mixed liquor in, stir after supplying the water of surplus
To mix homogeneously.
Described glass substrate of liquid crystal display is preferably TFT glass substrates
Under study for action it was found that the present invention provide compositionss, only on the hydrochloric acid and hydrofluoric acid base of low concentration
Rational formula is carried out, glass substrate of liquid crystal display is carried out after pretreatment using said composition, can be significantly reduced follow-up
The pit on hydrofluoric acid etch thinning technique metacoxal plate surface, so as to while ensure that pretreating effect, it is to avoid existing skill
Concentrated sulphuric acid is adopted in art the problem for processing is difficult to for the pretreating agent insecurity when in use and waste liquid of main component.This
The compositionss of bright offer have good pretreating effect to the CF faces and TFT faces of glass substrate.And through prescription screening we
It was found that, preferable pretreating effect could be produced using preferred ingredient and recipe quantity, especially HP-β-CD, shell gather
Sugar, polydimethylsiloxane and its proportioning, above-mentioned three kinds of components are to realize the key component of good pretreating effect, are lacked
Any of which or or change its proportioning all can appreciable impact pretreating effect.
Specific embodiment
Provided by the present invention for the compositionss for glass substrate of liquid crystal display surface treatment, match somebody with somebody in the following manner
System,
1) recipe quantity hydrochloric acid, Fluohydric acid. are mixed, and add suitable quantity of water to dilute,
2) HP-β-CD of recipe quantity is dissolved in suitable quantity of water to being completely dissolved, adds the poly- diformazan of recipe quantity
Radical siloxane；
3) recipe quantity ethanedioic acid is prepared the solution for becoming 1%, recipe quantity shitosan is added and is dissolved；
3) by step 1), the mixed liquor that 2) obtains be respectively added slowly to step 3) mixed liquor in, after supplying the water of surplus
Stir to mix homogeneously.
1~4 formula of embodiment see the table below (mass percent wt%)
The shitosan adopted in the present invention is to meet the product of GB 29941-2013.
The method that thinning pretreatment is carried out to the compositionss that embodiment 1~4 is obtained is as follows
The face glass for TFT display screens of the same batch that raw material is Corning Incorporated's production is taken, its thickness is
1.000mm, size are 730mm × 920mm.The etching for being adopted and polissoir respectively Dongguan letter village's etching machine and Hunan are forever
Wound buffing machine.It is first that UV glue is permeated in CF surface glasses substrate and TFT surface glass substrate surroundings gap then complete with UV illumination curings
Into the encapsulation of glass substrate, the glass substrate that encapsulation is completed is used for follow-up pretreatment and thinning operation
Preprocess method is
1) compositionss 1000L (hereinafter referred to as pretreating agent) of glass substrate of liquid crystal display surface treatment are formulated for
2) pretreating agent is squeezed into into etching machine acid tank and by pretreating agent temperature control at 50 DEG C ± 2 DEG C, using as experiment
5 glass substrates (numbering is I~V) for completing to encapsulate of group sample are immersed in pretreating agent, remove glass surface bilayer 60
Micron；Bubbling stirring is carried out to pretreating agent in pretreatment.
3)：Glass surface is cleaned with clear water, is entered back under conditions of surface wettability in hydrofluoric acid etch liquid, concentration is
9mol/L, temperature control are thinned to 0.5mm thickness in 30 DEG C of conditions.
Separately take 5 complete glass substrate (numbering i~v) clean waters for encapsulating after be directly entered it is dense in hydrofluoric acid etch liquid
Spend for 9mol/L, temperature control is thinned to 0.5mm thickness in 30 DEG C of conditions, and as a control group
Created on buffing machine 1300-3# forever at same, pressure 60g/cm2, lower wall rotating speed 50, upper disk rotating speed 40, grinding pad
For global LP-66 models, polishing powder is happy 101 model of scholar of moral, and absorption layer is FUJIBO BPE211 models, and experimental group often grinds 2
Minute inspection one-time surface effect, matched group are often ground inspection in 5 minutes and once show effect, and checking after record grinding does not have pit
Accumulative milling time it is as shown in table 1
Test result indicate that, the pretreating agent provided using the present invention carries out pretreated glass substrate is carrying out thinning
The pit on panel can be substantially reduced after PROCESS FOR TREATMENT.
Claims (2)
1. the compositionss of glass substrate of liquid crystal display surface treatment are used for, it is characterised in that the compositionss are by following components group
Into：
The hydrochloric acid (HCl) of mass percentage content 5-8%, the Fluohydric acid. (HF) of mass percentage content 2%~5%, quality hundred
Divide the shitosan than content 1~2%, the polydimethylsiloxane of mass percentage content 0.5~1%, mass percent 0.5%
~1% HP-β-CD and the water of surplus.
2. it is as claimed in claim 1 to be used for the compositionss that glass substrate of liquid crystal display is surface-treated, it is characterised in that with such as
Lower method is prepared,
1) recipe quantity hydrochloric acid, Fluohydric acid. are mixed, and add suitable quantity of water to dilute,
2) recipe quantity shitosan is added into step 1) in the mixed liquor that obtains and dissolve；
3) HP-β-CD of recipe quantity is dissolved in suitable quantity of water to being completely dissolved, adds recipe quantity poly dimethyl silicon
Oxygen alkane；
3) by step 2) mixed liquor that obtains is respectively added slowly to step 3) mixed liquor in, stir after the water for supplying surplus to mixed
Close uniform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611268678.3A CN106673455B (en) | 2016-12-31 | 2016-12-31 | Composition for glass substrate of liquid crystal display surface treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611268678.3A CN106673455B (en) | 2016-12-31 | 2016-12-31 | Composition for glass substrate of liquid crystal display surface treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106673455A true CN106673455A (en) | 2017-05-17 |
| CN106673455B CN106673455B (en) | 2018-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611268678.3A Active CN106673455B (en) | 2016-12-31 | 2016-12-31 | Composition for glass substrate of liquid crystal display surface treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108975721A (en) * | 2018-10-31 | 2018-12-11 | 邓惠玉 | A kind of etch combination for glass substrate of liquid crystal display thinning processing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000281368A (en) * | 1999-03-31 | 2000-10-10 | Shin Meiwa Ind Co Ltd | Production of sheet glass |
| CN101868428A (en) * | 2007-11-19 | 2010-10-20 | 旭硝子株式会社 | Method for etching glass substrate |
| CN102432185A (en) * | 2011-09-30 | 2012-05-02 | 郑州恒昊玻璃技术有限公司 | Etching liquid and etching process for anti-dazzle glass product |
-
2016
- 2016-12-31 CN CN201611268678.3A patent/CN106673455B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000281368A (en) * | 1999-03-31 | 2000-10-10 | Shin Meiwa Ind Co Ltd | Production of sheet glass |
| CN101868428A (en) * | 2007-11-19 | 2010-10-20 | 旭硝子株式会社 | Method for etching glass substrate |
| CN102432185A (en) * | 2011-09-30 | 2012-05-02 | 郑州恒昊玻璃技术有限公司 | Etching liquid and etching process for anti-dazzle glass product |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108975721A (en) * | 2018-10-31 | 2018-12-11 | 邓惠玉 | A kind of etch combination for glass substrate of liquid crystal display thinning processing |
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| CN106673455B (en) | 2018-10-23 |
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Effective date of registration: 20180910 Address after: 435111 office building 201, B building, 189 Jinshan Road, Huangshi economic and Technological Development Zone, Hubei Applicant after: Herd nano technology (Huangshi) Co., Ltd. Address before: 528051 No. 4, Lane 4, Nan Bian street, Chancheng, Zhangcha, Foshan, Guangdong. Applicant before: Pang Qiqi |
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