CN101007710B - Method for manufacturing glass substrate for display and glass substrate - Google Patents
Method for manufacturing glass substrate for display and glass substrate Download PDFInfo
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- CN101007710B CN101007710B CN2006100798695A CN200610079869A CN101007710B CN 101007710 B CN101007710 B CN 101007710B CN 2006100798695 A CN2006100798695 A CN 2006100798695A CN 200610079869 A CN200610079869 A CN 200610079869A CN 101007710 B CN101007710 B CN 101007710B
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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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- 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
- C03C2218/00—Methods for coating glass
- C03C2218/30—Aspects of methods for coating glass not covered above
- C03C2218/32—After-treatment
- C03C2218/328—Partly or completely removing a coating
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133302—Rigid substrates, e.g. inorganic substrates
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- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Liquid Crystal (AREA)
- Surface Treatment Of Glass (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention relates to a method for manufacturing glass basal plates of flat panel display, including following steps: chemical polishing glass basal plates (ST2) of flat panel display by a aqueous solution containing hydrofluoric acid; checking the chemical polished glass basal plates to discover whether exist incurvated defect having maximum diameter between 50 to 200 mum, detecting the glass basal plates (ST3) having this kind of incurvated defect; coating a first coating agent on the incurvated defect (ST11) of the faulted glass basal plates; coating a second coating agent on the incurvated defect coated the first coating agent until the second coating agent overflow from the incurvated defect (ST12); curing the second coating agent (ST14); only removing cured the second coating agent extruded on surface of the glass basal plates (ST16) to flatten surface thereof. The manufacturing method allows produce high quality glass basal plates of flat panel display with high efficiency.
Description
Technical field
The present invention relates to a kind of method that is used to make glass basal plates of flat panel display, in particular for make the method for high quality glass substrate with high qualification rate.
Background technology
The use of term " flat-panel monitor " (below be abbreviated as FPD) is with respect to the indicating meter with curved surface display panel, for example the cathode ray tube (CRT) indicating meter.The principal character of flat-panel monitor comprises the thin degree of depth, little floor space (footprint) and flat display board.This flat-panel monitor is particularly useful as and is liquid-crystal display, plasma display, OLED display etc.In these flat-panel monitors, liquid-crystal display not only is widely used for televisor especially, and is widely used as especially and is indicating meter portable phone or computer equipment.
Fig. 2 is the cross-sectional view of the typical display panel PN of liquid-crystal display.As shown in Figure 2, display panel has a kind of structure, and liquid crystal LC places between a pair of first and second glass substrates 1 and 2 laminated together in this structure.
On the internal surface of first glass substrate 1, the color filter 4, the supercoat 5 that is used to cover black matrix 3 and color filter 4, transparency electrode 6A and the oriented film 7A that were opened in 3 minutes by black matrix (Black Matrix) pile up in this order.On the internal surface of second glass substrate, be provided with thin film transistor 8 and transparency electrode 6B, also be provided with oriented film 7B above that.
Usually, this display panel PN with structure as shown in Figure 2 makes as follows.First glass substrate 1 and second glass substrate 2 are laminated together in such a way, make a plurality of partitions be arranged between oriented film 7A respect to one another and the 7B, are the space of about 3 to 6 μ m so that thickness to be provided to liquid crystal.Then, liquid crystal LC is expelled in the space between glass substrate 1 and 2 through vacuum take-off.At last, on the corresponding outside surface that is attached to glass substrate 1 and 2 of light polarizing film 10A and 10B.
Nearest situation is, each glass substrate 1 and 2 thickness drop to lowest limit.Particularly have the first and second glass substrate GL1 and the GL2 of a plurality of display panels zone PN-PN laminated together obtaining laminated glass substrate GL, and the neighboring of laminated glass substrate GL closely seal.Then laminated glass substrate GL is immersed in the bag aqueous hydrofluoric acid containing solution, to reduce the thickness (see figure 3) of laminated glass substrate GL through chemical rightenning.Through using chemical polishing not only possibly make a plurality of display panel PN simultaneously but also possibly boost productivity, because the polishing velocity of chemical rightenning is higher than the speed of mechanical polishing.Also maybe the thickness of laminated glass substrate GL be reduced to its lowest limit in addition, this possibly satisfy the thickness that reduces display panel PN and the requirement of weight.
After accomplishing chemical rightenning, laminated glass substrate GL cuts into the display panel PN that is separated from each other.Each display panel PN is through the process and the process of pasting light polarizing film of injection liquid crystal then.It should be noted that the display panel that yet existence does not have light polarizing film.
As stated, through making laminated glass substrate GL, possibly effectively the thickness of laminated glass substrate GL is decreased to its lowest limit through chemical rightenning.But this method has caused some arguements that need further investigate.
For example when glass substrate by chemical rightenning when reducing its thickness, the part that is present in extremely small defective or change in the glass substrate potentially obviously becomes a defective (below be called " etching defect ") because of chemical rightenning becomes.This etching defect can be eliminated through continuing the chemical rightenning glass substrate.But when glass substrate can not continue chemical rightenning when allow eliminating the degree of etching defect, etching defect keeps as a visible defects.More specifically, from the plat that the front of the residual body of glass substrate is seen, measure, have the etching defect that maximum diameter is approximately 50 to 2000 μ m.This etching defect is the defective that is recessed into, and it is level and smooth relatively and has basically circular or avette shape because of it has received etching.
In addition, even glass substrate not have recessed defective after accomplishing chemical rightenning, so also might other defectives that are recessed into of crackle (below be called " non-etching defect ") for example appear because of the cutting of after chemical rightenning, carrying out etc.This non-etching defect is rough and does not have circular shape because of it does not receive etching.Therefore, the internal surface of non-etching defect has sharp irregularity.
This recessed defective that is formed on the glass baseplate surface detects in the quality test step.In this step, if there is the glass substrate of recessed defective to be removed, productivity obviously worsens so, means the display panel of removing costliness because remove the glass substrate of recessed defective.If but there is the glass substrate of recessed defective to use as usual, be presented at the quality deteriorated of the image on the screen so.Especially, deterioration of image is fatal shortcoming for the portable phone of closely observing or the display panel of PC.Most of obvious defects that after accomplishing chemical rightenning, become all were potential before chemical rightenning.Therefore can not just handle the problem of latent defect effectively through before chemical rightenning, only carrying out quality test, and be too high expectation through adopting the recessed defective of some method reparation that imperfect glass substrate is transformed into unblemished glass substrate.
Some approach can be used for repairing recessed defective.A kind of approach is to make imperfect glass substrate through mechanical polishing.But problem is a polished glass substrate at a high speed because the thickness of glass substrate be reduced to its lowest limit and a plurality of partition be arranged on glass substrate laminated together between, therefore significantly worsen productivity.In fact usually further a surface of mechanical polishing glass substrate needs about 60 minutes with the thickness that reduces by 30 μ m.Even glass substrate is with so low speed polishing in addition, about 20% glass substrate breaks during polishing.Therefore, it is not too high imperfect glass substrate to be transformed into the ratio of unblemished glass substrate.
A kind of in addition approach is to fill out appropriate filler (tackiness agent) to recessed defective.Under the situation of non-etching defect, it is relatively easy letting filler be attached to securely on the glass substrate.But under the situation of the etching defect that has wide opening because of chemical rightenning, if filler is normally used filler, the adhesion between filler and glass substrate is very poor so.For example light polarizing film and glass substrate are separated and light polarizing film is attached under the situation on the glass substrate again being necessary, worry that the filler of filling out in etching defect is easy to peel off from glass substrate, because etching defect has wide opening.Also worry in addition complete operation for example grinding during peel off filler from glass substrate.This is because be necessary to make the smooth surface of filling out the filler in recessed defective to arrive and the consistent degree of glass baseplate surface that centers on this recessed defective.
Above-mentioned these problems are not inherent in liquid-crystal display, are general character with other flat-panel monitors still.
Summary of the invention
Therefore the purpose of this invention is to provide a kind of method and a kind of high-quality glass substrate that is used for making the high-quality glass substrate that flat-panel monitor uses with high productivity.In order to solve above-mentioned purpose, the present invention provides a kind of method that is used to make glass basal plates of flat panel display, and this method may further comprise the steps:
With a kind of chemistry of aqueous solution polishing glass basal plates of flat panel display that comprises hydrofluoric acid, so that the thickness of glass substrate reduces;
Check is by the glass substrate of chemical rightenning, to find whether have the recessed defective that maximum diameter is 50 to 2000 μ m, to detect the imperfect glass substrate of this recessed defective;
A kind of silane couplent that comprises is applied on the said recessed defective that the shortcoming glass substrate arranged as the priming paint of staple;
A kind of anaerobic UV cured resin is applied on the recessed defective that has applied said priming paint, makes anaerobic UV cured resin overflow recessed defective;
Shield mask is laminated on the anaerobic UV cured resin with the mode that bubble can not be trapped in the anaerobic UV cured resin;
Anaerobic UV cured resin hardens;
Blocking mask is removed from anaerobic UV cured resin; With
Make the surfacing of glass substrate through only removing the anaerobic UV cured resin that protrudes in glass baseplate surface.
The present invention relates to a kind of method that is used to make glass basal plates of flat panel display, this method may further comprise the steps: the glass substrate that is used for flat-panel monitor with a kind of chemistry of aqueous solution polishing that comprises hydrofluoric acid; Check is by the glass substrate of chemical rightenning, to find whether have the recessed defective that maximum diameter is 50 to 2000 μ m, to detect the imperfect glass substrate of this recessed defective; A kind of first coating agent is applied on the said recessed defective that the shortcoming glass substrate arranged; A kind of second coating agent is applied on the recessed defective that has applied said first coating agent, makes second coating agent overflow recessed defective; Second coating agent hardens; Make the surfacing of glass substrate through only removing second coating agent of hardened that protrudes in glass baseplate surface.
In the present invention, when second coating agent has hardened, it works to be used to fill the filler of recessed defective.Therefore, the amount that need be applied to first coating agent of recessed defective is restricted to a minimum, to such an extent as to but second coating agent is applied in the recessed defective and overflows recessed defective.Especially, second coating agent is applied in the recessed defective with enough amounts, even so that also protrude in the surface of glass substrate when shrinking because of sclerosis in second coating agent.It should be noted that and select first and second coating agents to make that their specific refractory power and transsmissivity is substantially the same in the specific refractory power and the transsmissivity of glass substrate when they harden.
In smooth treatment step, hardened second coating agent that protrudes in glass baseplate surface is removed with smooth glass substrate.Therefore, be applied to the perfect surface that can there be the mirror surface type that is similar to glass baseplate surface second coating agent that is recessed into defective.Consequently, imperfect laminated glass substrate transfer becomes unblemished laminated glass substrate.In addition, smooth processing preferably through with artificiallies such as perching knives the unnecessary portions of second coating agent being struck off from glass substrate, is perhaps only cut second coating agent through the electricity consumption scraper.It should be noted that a kind of method in back obtain smooth perfect surperficial aspect than before a kind of method more outstanding.
Under the situation of using perching knife; The whole edge of perching knife is pressed against on the glass substrate with the angle about 25 to 35 ° with respect to glass substrate; So that about load of 0.7 to 1.0kg is applied on the glass substrate, and push away forward then to strike off the unnecessary portions of second coating agent from glass substrate.On the other hand; Make under the situation of electrical appliance; This electrical equipment is pressed against on the glass substrate with the angle with respect to 30 to 40 ° of glass substrates, so that 0.2kg or cutting loading still less are applied on the glass substrate, and promotes then not cause the infringement to glass substrate only to cut second coating agent.
If the recessed defective on glass baseplate surface, producing during the chemical rightenning is too big, effect so of the present invention reduces by half.Therefore, the maximum diameter of recessed defective preferably is controlled at 2000 μ m or littler.Especially; The control of the maximum diameter of recessed defective can be carried out through a kind of method a and/or a kind of method b effectively; In method a, when preset thickness, before chemical rightenning, remove the potential defective through the mechanical polishing glass substrate; In method b, the chemical rightenning amount of glass substrate is restricted.On the other hand, maximum diameter can keep motionless less than the recessed defective of 50 μ m, because it sees harmful effect from angle of practice.In the present invention; The recessed defective of need considering not only comprises coming from and before chemical rightenning, has been present in the glass substrate and the etching defect of the tiny flaw through chemical rightenning expansion, and comprises the non-etching defect that produces through the operation of after chemical rightenning, carrying out.
In addition in the present invention, can carry out chemical rightenning through using two kinds of polishing solutions different on composition.In this case, for example, glass substrate polishes with 1 μ m/sec or higher speed with first polishing solution, polishes with the low rate of 0.5 to 20 μ m/min with second polishing solution then.Through doing like this, maximum diameter to the 100 μ m of the recessed defective (etching defect) that possibly suppress effectively to produce or bigger through chemical rightenning, but less than 300 μ m (preferred 100 μ m or bigger, but less than 200 μ m).
First polishing solution is a kind of hydrofluoric acid and vitriolic aqueous solution of comprising.The concentration of the hydrofluoric acid in first polishing solution is preferably 10 to 30wt%, and more preferably 15 to 28wt%, also more preferably 17 to 25wt%.Vitriolic concentration in first polishing solution is preferably 20 to 50wt%, and more preferably 30 to 45wt%, also more preferably 35 to 42wt%.The time that glass baseplate surface is contacted with first polishing solution is preferably one minute or still less.As stated, the polishing speed that uses first polishing solution is 1 μ m/sec or bigger, but is preferably 3 to 10 μ m/sec, more preferably 5 to 8 μ m/sec.
On the other hand, second polishing solution is the aqueous solution of a kind of 10wt% of comprising or hydrofluoric acid still less.Second polishing solution preferably also comprises one or both or more kinds of mineral acid and tensio-active agent except hydrofluoric acid.Representative examples of mineral pigments comprises hydrochloric acid, nitric acid, sulfuric acid and phosphoric acid.The instance of this tensio-active agent comprises the tensio-active agent of tensio-active agent, the phenolic group of ester group, (amine-based) tensio-active agent of amino (amide-based) tensio-active agent, the tensio-active agent of ether, non-ionic tensio-active agent and amido.As stated, the polishing speed that uses second polishing solution is 0.5 to 20 μ m/min, but preferred 0.5 to 10 μ m/min.
First coating agent is not limited especially, but preferred a kind of adhering priming paint between the glass substrate and second coating agent that is used to improve.The opening of etching defect has enlarged through chemical rightenning and the filler that therefore is used to fill this recessed defective possibly peel off from glass substrate.Therefore, priming paint is effective especially as first coating agent.A kind of silane couplent (silane coupling agent) that comprises is preferred the use as the priming paint of the siloyl group of staple.
A kind of hardenable resin is used as second coating agent.In order to prevent the scalloping on the image display, methacrylic resin or vinyl resin with specific refractory power identical with transsmissivity with the specific refractory power of glass substrate basically after its sclerosis and transsmissivity are preferred the uses.This hardenable resin can for example be the thermosetting type or photohardenable type, but the photohardenable type of preferred use.Especially, preferably use a kind of UV cured tackiness agent.In UV cured tackiness agent, the anaerobic sclerosis type that requirement lacks air is preferred especially the use, but also can use only through the UV cured type of ultraviolet energy hardened.
As stated, according to the present invention, possibly produce the high quality glass substrate that is used for flat-panel monitor with high productivity.In addition, when repairing glass substrate, or not the mechanical polishing glass substrate, therefore reduced the time and the expense of repairing.In addition, this restorative procedure can not cause the damage of glass substrate, therefore realizes 100% zero defect rate basically.
Description of drawings
Figure 1A is used to make the schema of the method for liquid-crystal display;
Figure 1B repairs the detail flowchart of the step of glass substrate;
The cross-sectional view of the display panel of Fig. 2 liquid-crystal display;
The synoptic diagram of Fig. 3 laminated glass substrate;
Fig. 4 A and 4B are used to explain the legend of the step of smooth glass substrate;
Fig. 5 repairs the schema of step of the change of glass substrate.
Embodiment
Below through describing the present invention in detail with reference to preferred embodiment.Figure 1A is the schema that a demonstration is used to make the method for liquid-crystal display, and Figure 1B is the detail flowchart of the step of a reparation glass substrate.
The display panel PN that obtains at last has identical structure as shown in Figure 2.But in the step ST1 of laminated glass substrate shown in Figure 1, a plurality of half-finished display panel PN...PN for example are arranged to a matrix (see figure 3) on the laminated glass substrate GL of 730mm * 920mm a size.
Especially in this state; Each display panel PN is a work in-process display panel; It does not have in step ST6, to place the liquid crystal LC between glass substrate GL1 and the glass substrate GL2, and does not have in step ST7, to be attached to light polarizing film 10A and the 10B on glass substrate GL1 and the GL2 respectively.At glass substrate GL1 with GL2 is laminated together and after obtaining a laminated glass substrate GL, the periphery of laminated glass substrate GL seals with an acid proof sealing agent.
Then, laminated glass substrate GL is immersed in the bag aqueous hydrofluoric acid containing solution with the outside surface ST2 of chemical rightenning glass substrate GL1 and GL2.The whole thickness of laminated glass substrate GL is approximately 0.6mm, 0.8mm or 1.0mm.About 50 to the 300 μ m of the polished reduction thickness of each glass substrate GL1 and GL2 (the whole thickness of laminated glass substrate GL reduces by 100 to 600 μ m).At this moment, above-mentioned first and second polishing solutions preferably use by this requirement.
In the step of chemical rightenning, must reduce the thickness of each glass substrate GL1 and GL2, keep the smooth of these glass substrates simultaneously.Therefore, preferred bubble constantly forms to produce polishing solution in the bottom in polishing pond and upwards flows.In addition also preferably, polishing solution constantly overflows the polishing pond to get rid of reaction product through filtering.Perhaps, polishing solution upgrades in the appropriate time wholly or in part.
Carried out chemical rightenning in the above described manner but both made, because the chemical rightenning of glass substrate, the latent defect that was present in originally in glass substrate GL1 and the GL2 is tending towards enlarging.Therefore the degree of depth that depends on this latent defect, latent defect possibly become and become obviously that maximum diameter is arranged is the recessed defective of 50 to 2000 μ m after accomplishing chemical rightenning.
This recessed defective has a circle or an oval in shape basically in plat, and they are separated from each other or are connected with each other.In either case, carry out chemical rightenning through adopting above-mentioned this preferable methods, the maximum diameter of recessed defective is less than 2000 μ m.The maximum diameter that it should be noted that recessed defective is measured the plat of seeing from the front of glass substrate, and when recessed defective was connected with each other, the maximum diameter of recessed defective was meant the wherein maximum diameter of the supposition of each recessed defective.
After the step ST2 that accomplishes chemical rightenning, laminated glass substrate GL (see figure 3) stands cutting and separation steps ST3 then.In cutting and separation steps, the half-finished display panel PN-PN that is arranged to matrix form is separated from each other through cutting.Link to each other preferably therewith, before chemical rightenning, line mechanically is arranged on the laminated glass substrate GL along the separation line between the display panel (dotted line by among Fig. 3 is represented).Through such work, make to be separated from each other display panel through cutting and to become easy.In this case, through chemical rightenning in step ST2, with other part relatively, the part that mechanically has been provided with line is etched darker, therefore forms groove.Therefore, in cutting and separation steps ST3,, make each display panel PN cut down from laminated glass substrate GL along said groove through only mechanically applying appropriate load to laminated glass substrate GL.In addition, the cutting surface of each display panel PN is slick, because etching has been stood on the cutting surface.
After accomplishing cutting and separation steps ST3, the step ST4 that stands quality tests of display panel then.In this step, except that typical quality test, also check each half-finished display panel PN to find that whether having maximum diameter is the recessed defective of 50 to 2000 μ m.If the display panel of this recessed defective is arranged, this display panel stands to repair the step ST5 of glass substrate so.
Shown in Figure 1B, in the step of repairing glass substrate, at first use the for example surperficial ST10 of ethanol cleaning glass substrate.Then, contaminate a kind of priming paint to cotton swab, this priming paint is first coating agent, and cotton swab pushes and brush wiping facing to recessed defective, this priming paint is applied to this recessed defective ST11.It should be noted that the time of pushing cotton swab facing to recessed defective is about 30 seconds, this can not damage workability.
Then, a kind of anaerobic UV cured resin as second coating agent is applied to recessed defective ST12.Especially, being applied to recessed defective to a kind of anaerobic UV cured resin with small suction pipe etc. makes and overflows recessed defective.It should be noted that UV cured resin capacity is applied to recessed defective, even after UV cured resin shrinks owing to sclerosis, also can be outstanding from the surface of glass substrate.
As stated, because anaerobic ultraviolet hardening resin uses in the present embodiment, after completing steps ST12, shield mask is laminated to is used for degasification on second coating agent.At this moment, shield mask is laminated on second coating agent with the mode that bubble can not be trapped in second coating agent.As a kind of shield mask that is used, a kind of ultraviolet Vestolen PP 7052 (PP) film that sees through is preferred the use.
After accomplishing above-mentioned preparation, use the ultraviolet ray of launching to shine the second coating agent ST14 via shield mask from hand-held UV cured unit.It should be noted that the amount of uviolizing and the size and the degree of depth that change of time depends on the recessed defective that will be repaired, but through about 3 to 4 minutes second coating agents that can harden of uviolizing with 200 to 450mJ intensity.Therefore, do not consuming second coating agent that to harden glossily in the so many time.
, shield mask from second coating agent removed ST15, and carry out smooth step ST16 then thereafter.Because hardened second coating agent is outstanding from the surface of glass substrate, so in this step, use perching knife 20 or electricity to cut off cutter 30 smooth glass substrates.
Under the situation of using perching knife 20; The whole edge of perching knife 20 is pressed against on the glass substrate GL with the angle about 25 to 35 ° with respect to glass substrate GL; So that 0.7 to 1.0kg load is applied on the glass substrate GL, and push away forward then to strike off protruding 40 (seeing Fig. 4 A).On the other hand; Under the situation that makes electricity consumption scraper 30; Scraper is pressed against on the glass substrate GL with the angle with respect to GL30 to 40 ° of glass substrate, so that 0.2kg or cutting loading still less are applied on the glass substrate GL, and spurs then with protruding 40 (seeing Fig. 4 B) of excision only.
After completion is smooth, with the surperficial ST17 of cleanings such as ethanol, to accomplish the step of repairing glass substrate around the glass substrate GL of restoring area.Thereafter, liquid crystal LC is expelled to the interior ST6 of display panel PN of reparation, and then light polarizing film 10A and 10B correspondingly is attached to the front surface of display panel PN and afterwards surperficial.Through light polarizing film being attached on the display panel PN, it is possible fully covering the zone of having repaired.Even for some reason need be from the display panel under the isolating situation with light polarizing film; Needn't worry that also second coating agent can peel off from glass substrate; Because first coating agent and second coating agent are layered in the recessed defective, therefore improved the adhesivity between the glass substrate and second coating agent.
The above-mentioned schedule of operation of describing in detail with reference to figure 1 only is illustrative, and does not mean that the qualification invention scope.For example, under the situation of unnecessary creation oxyphobe condition, step ST13 and ST15 omit naturally.
In addition, second coating agent needn't once be applied to recessed defective.For example, be that second coating agent preferably is applied to so recessed defective more than twice ground under the situation of 200 to 300 μ m or bigger relatively large recessed defective at maximum diameter.
Fig. 5 shows the schema that applies the schedule of operation of second coating agent more than twice ground.Especially, after first coating agent was applied to recessed defective, second coating agent is applied to recessed defective so that recessed defective is filled up ST20 with second coating agent basically.In case of necessity, cover second coating agent with shield mask.Then, with uviolizing second coating agent.In this case, the amount and the time that uviolizing are set are so that second coating agent hardens into gel state.With shield mask cover the situation of second coating agent under, remove shield mask thereafter.In addition, be present under the situation around the recessed defective, strike off with perching knife etc. in second coating agent.
Then, to such an extent as to further being applied to recessed defective, second coating agent overflows recessed defective ST22.In case of necessity, cover second coating agent with shield mask.Use uviolizing second coating agent then.In this case, is set so that finally be applied to second coating agent of recessed defective and fully harden amount and the time of uviolizing.As a result, be applied to further sclerosis the in second coating agent of recessed defective for the first time so that the adhesivity between second coating agent and glass substrate further improves.Thereafter, shown in Figure 1B, carry out smooth.
As above-mentioned, be applied under the situation of recessed defective more than twice ground in second coating agent, and under the situation of carrying out step ST5 according to schema shown in Figure 1B, to compare, the adhesivity between second coating agent and glass substrate further improves.Therefore, even be not attached in light polarizing film under the situation on surface of glass substrate, recessed defective is fully covered.
Claims (8)
1. method that is used to make glass basal plates of flat panel display, this method may further comprise the steps:
With a kind of chemistry of aqueous solution polishing glass basal plates of flat panel display that comprises hydrofluoric acid, so that the thickness of glass substrate reduces;
Check is by the glass substrate of chemical rightenning, to find whether have the recessed defective that maximum diameter is 50 to 2000 μ m, to detect the imperfect glass substrate of this recessed defective;
A kind of silane couplent that comprises is applied on the said recessed defective that the shortcoming glass substrate arranged as the priming paint of staple;
A kind of anaerobic UV cured resin is applied on the recessed defective that has applied said priming paint, makes anaerobic UV cured resin overflow recessed defective;
Blocking mask is laminated on the anaerobic UV cured resin with the mode that bubble can not be trapped in the anaerobic UV cured resin;
Anaerobic UV cured resin hardens;
Blocking mask is removed from anaerobic UV cured resin; With
Make the surfacing of glass substrate through only removing the anaerobic UV cured resin that protrudes in glass baseplate surface.
2. by the method for manufacture of claim 1, it is characterized in that: the step of said chemical rightenning glass substrate is divided into first polishing solution with the first step of 1 μ m/sec or higher two-forty polished glass substrate and with second step of second polishing solution with the low rate polished glass substrate of 0.5 to 20 μ m/min.
3. by claim 1 or 2 method of manufacture, also comprise light polarizing film is attached to through the step on the glass substrate of the step of the said surfacing that makes glass substrate.
4. press the method for manufacture of claim 1 or 2; It is characterized in that: said glass substrate is a laminated glass substrate; A plurality of display panels are arranged to a matrix therein; And before the step of said chemical rightenning glass substrate, line mechanically is arranged on the laminated glass substrate along the separation line between the display panel.
5. by claim 1 or 2 method of manufacture, it is characterized in that: in the step of the said surfacing that makes glass substrate, only anaerobic UV cured resin is mechanically ground off.
6. by claim 1 or 2 method of manufacture, it is characterized in that: the step that applies anaerobic UV cured resin further comprises the steps:
Anaerobic UV cured resin is applied on the recessed defective that has applied said priming paint in advance, makes anaerobic UV cured resin not overflow recessed defective; And
Anaerobic UV cured resin is applied on the female defective before hardening fully being applied to anaerobic UV cured resin on the recessed defective in advance at last, makes anaerobic UV cured resin overflow this recessed defective.
7. one kind is passed through to press the glass substrate that each method is made in the claim 1 to 6.
8. one kind with the flat-panel monitor of making by the glass substrate of claim 7.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-015968 | 2006-01-25 | ||
| JP2006015968A JP2007197236A (en) | 2006-01-25 | 2006-01-25 | Method for manufacturing glass substrate for display and glass substrate |
| JP2006015968 | 2006-01-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101007710A CN101007710A (en) | 2007-08-01 |
| CN101007710B true CN101007710B (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100798695A Expired - Fee Related CN101007710B (en) | 2006-01-25 | 2006-05-15 | Method for manufacturing glass substrate for display and glass substrate |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP2007197236A (en) |
| KR (1) | KR100983856B1 (en) |
| CN (1) | CN101007710B (en) |
| HK (1) | HK1112449A1 (en) |
| SG (1) | SG134202A1 (en) |
| TW (1) | TWI380085B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101280828B1 (en) * | 2008-07-02 | 2013-07-02 | 엘지디스플레이 주식회사 | Method for repairing defect in substrate |
| KR101971954B1 (en) * | 2015-06-22 | 2019-04-24 | 주식회사 엘지화학 | System for removing surface defects of a glass substrate and Method of removing surface defects of a glass substrate using the same |
| TWI725112B (en) | 2016-01-29 | 2021-04-21 | 美商康寧公司 | Methods for thinning glass |
| CN109534683B (en) * | 2017-09-21 | 2021-12-31 | 航天科工惯性技术有限公司 | Method for eliminating defects of quartz glass subsurface layer |
| CN107817621B (en) * | 2017-12-15 | 2021-01-26 | 江西沃格光电股份有限公司 | Repairing method of flat panel display |
| JP6677842B2 (en) * | 2019-04-22 | 2020-04-08 | 堺ディスプレイプロダクト株式会社 | Flexible display, manufacturing method thereof, and support substrate for flexible display |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1380572A (en) * | 2001-04-12 | 2002-11-20 | 西山不锈化学股份有限公司 | Chemical polishing method and device for liquid crystal glass base plate |
| US6552771B1 (en) * | 1998-12-18 | 2003-04-22 | Hitachi, Ltd. | Image display device and its repairing method and apparatus |
| CN1713029A (en) * | 2004-06-25 | 2005-12-28 | 鸿富锦精密工业（深圳）有限公司 | Glass base plate for liquid crystal package, its production and liquid crystal device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6437433A (en) * | 1987-08-04 | 1989-02-08 | Asahi Glass Co Ltd | Method of smoothing glass substrate surface |
| JPH05224193A (en) * | 1992-02-14 | 1993-09-03 | Matsushita Electric Ind Co Ltd | Method for smoothing base body of liquid crystal display element |
| JPH0697068A (en) * | 1992-09-11 | 1994-04-08 | Mitsubishi Electric Corp | Flattening method |
| JPH11246242A (en) * | 1998-03-03 | 1999-09-14 | Kansai Paint Co Ltd | Method of repairing glass face |
| JP2001097787A (en) | 1999-10-01 | 2001-04-10 | Murata Mfg Co Ltd | Method for forming flattened film, ceramic substrate, and electronic component |
| JP3995146B2 (en) | 2002-02-01 | 2007-10-24 | 西山ステンレスケミカル株式会社 | Manufacturing method of glass substrate for liquid crystal display |
| JP2005215471A (en) | 2004-01-30 | 2005-08-11 | Optrex Corp | Method for manufacturing flattening film |
| JP2005263593A (en) * | 2004-03-22 | 2005-09-29 | Sumitomo Bakelite Co Ltd | Smoothed glass substrate |
-
2006
- 2006-01-25 JP JP2006015968A patent/JP2007197236A/en active Pending
- 2006-04-13 TW TW095113217A patent/TWI380085B/en not_active IP Right Cessation
- 2006-04-20 KR KR1020060035714A patent/KR100983856B1/en not_active IP Right Cessation
- 2006-04-22 SG SG200602765-0A patent/SG134202A1/en unknown
- 2006-05-15 CN CN2006100798695A patent/CN101007710B/en not_active Expired - Fee Related
-
2008
- 2008-01-30 HK HK08101169.5A patent/HK1112449A1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6552771B1 (en) * | 1998-12-18 | 2003-04-22 | Hitachi, Ltd. | Image display device and its repairing method and apparatus |
| CN1380572A (en) * | 2001-04-12 | 2002-11-20 | 西山不锈化学股份有限公司 | Chemical polishing method and device for liquid crystal glass base plate |
| CN1713029A (en) * | 2004-06-25 | 2005-12-28 | 鸿富锦精密工业（深圳）有限公司 | Glass base plate for liquid crystal package, its production and liquid crystal device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100983856B1 (en) | 2010-09-28 |
| SG134202A1 (en) | 2007-08-29 |
| TWI380085B (en) | 2012-12-21 |
| HK1112449A1 (en) | 2008-09-05 |
| KR20070078034A (en) | 2007-07-30 |
| TW200728837A (en) | 2007-08-01 |
| CN101007710A (en) | 2007-08-01 |
| JP2007197236A (en) | 2007-08-09 |
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