CN108919565A - A kind of cleaning method of electro-conductive glass - Google Patents
A kind of cleaning method of electro-conductive glass Download PDFInfo
- Publication number
- CN108919565A CN108919565A CN201810697261.1A CN201810697261A CN108919565A CN 108919565 A CN108919565 A CN 108919565A CN 201810697261 A CN201810697261 A CN 201810697261A CN 108919565 A CN108919565 A CN 108919565A
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- Prior art keywords
- electro
- conductive glass
- conductive film
- conductive
- alkaline solution
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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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
-
- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
-
- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133738—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers for homogeneous alignment
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The invention discloses a kind of cleaning methods of electro-conductive glass.The cleaning method of the electro-conductive glass includes：It is cleaned in the side spray alkaline solution that the electro-conductive glass is provided with conductive film；Alignment liquid is sprayed in the side that the electro-conductive glass is provided with conductive film.The cleaning method of electro-conductive glass provided in an embodiment of the present invention, by cleaning the conductive film on electro-conductive glass with alkaline solution, the surface-active of conductive film can be improved, reduce the alignment liquid of subsequent spray and the contact angle of conductive film, allow alignment liquid abundant free diffusing on conductive film, and forms the uniform alignment film of coating.
Description
Technical field
The present embodiments relate to a kind of cleaning method of glass more particularly to a kind of cleaning methods of electro-conductive glass.
Background technique
Electro-conductive glass is a kind of common conductive film material, is had a wide range of applications in conductive film technical field；Its
In, tin indium oxide (Indium tin oxide, ITO) electro-conductive glass is a kind of most commonly seen conducting glass material.
In general, electro-conductive glass needs device stacked together with other conductive films, with formation with certain function.With
For ito glass, during forming device, often need to spray PI alignment liquid on ito glass surface.In order in ITO
Glass surface forms uniform PI alignment liquid, needs to clean the surface of ito glass, living with the surface for improving ito glass
Property.
In the prior art, electro-conductive glass is cleaned frequently with ultraviolet light cleaning machine and plasma cleaner etc..But it adopts
With these cleaning methods after cleaning to ito glass, it is uneven that when PI alignment liquid is sprayed on the surface ITO, there are still PI alignment liquids
Even situation.
Summary of the invention
The present invention provides a kind of cleaning method of electro-conductive glass, so as to be sprayed onto the alignment liquid distribution of conductive glass surface more
Add uniformly.
In a first aspect, the embodiment of the invention provides a kind of cleaning method of electro-conductive glass, this method includes：
It is cleaned in the side spray alkaline solution that the electro-conductive glass is provided with conductive film；
Alignment liquid is sprayed in the side that the electro-conductive glass is provided with conductive film.
Further, it after the electro-conductive glass is provided with the side spray alkaline solution cleaning of conductive film, also wraps
It includes：
It is cleaned using the side that plasma cleaning method is provided with conductive film to the electro-conductive glass.
Further, the electro-conductive glass be provided with conductive film side spray alkaline solution cleaning before and/or
Later, further include：It is cleaned using the side that ultraviolet light ablution is provided with conductive film to the electro-conductive glass.
Further, the cleaning temperature of the alkaline solution is 42 ± 2 DEG C.
Further, the spray time of the alkaline solution is 150s-300s.
Further, the spray pressure of the alkaline solution is 1kg/cm2-2kg/cm2。
Further, the spray distance of the alkaline solution is 20cm-40cm.
Further, the pH value of the alkaline solution is greater than 13.
Further, the alkaline solution is basic process cypress solution.
Further, the conductive film is tin indium oxide ito thin film.
The cleaning method of electro-conductive glass provided in this embodiment is arranged by using alkaline solution cleaning in electro-conductive glass one
The surface-active of conductive film can be improved in the conductive film of side, reduces the alignment liquid of subsequent spray and the contact of conductive film
Angle allows alignment liquid abundant free diffusing on conductive film, and forms the uniform alignment film of coating.
Detailed description of the invention
Fig. 1 is the flow chart of the cleaning method of electro-conductive glass provided in an embodiment of the present invention；
Fig. 2 is the flow chart of the cleaning method of another electro-conductive glass provided in an embodiment of the present invention；
Fig. 3 is the flow chart of the cleaning method of another electro-conductive glass provided in an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Fig. 1 is the flow chart of the cleaning method of electro-conductive glass provided in an embodiment of the present invention.It optionally, referring to FIG. 1, should
The cleaning method of electro-conductive glass includes：
Step 10 is cleaned in the side spray alkaline solution that electro-conductive glass is provided with conductive film.
Specifically, a large amount of OH is contained in alkaline solution-Ion, OH-Ion has hydrophily, therefore, using alkaline solution
The conductive film of electro-conductive glass side is arranged in cleaning, and the affinity of conductive film and water can be enhanced, reduce subsequent sprinkling
The contact angle of alignment liquid and conductive film.Wherein, contact angle refers to the liquid-vapor interface made by gas, liquid, solid three-phase point of intersection
Tangent line, angle solid-liquid boundary line between of this tangent line in one side of liquid.In general, conductive material surface hydrophily is better, it is miscellaneous
Matter ingredient is fewer, and contact angle is smaller；And contact angle is smaller, the solution sprayed on conductive film surface expands on conductive film surface
Dissipate more abundant.Due to complete cleaning after, usually also need on conductive film spray alignment liquid to form subsequent structure,
Contain moisture in alignment liquid, therefore, using the surface of alkaline solution cleaning conductive film, the surface that can promote conductive film is living
Property, reduce the alignment liquid and contact angle of subsequent sprinkling, makes alignment liquid in the abundant free diffusing in conductive film surface.
Step 20 sprays alignment liquid in the side that electro-conductive glass is provided with conductive film.
Specifically, after guide film surface sprays alignment liquid, alignment liquid can be toasted to form alignment film；It is toasting
While alignment film, the alignment film for meeting the angle needed can be formed by friction, and make subsequent be arranged on alignment film
Liquid crystal molecule has the optimal initial deflection angle for meeting and needing.Optionally, alignment liquid can for polyimides (polyimide,
PI) solution.
The cleaning method of electro-conductive glass provided in this embodiment is arranged by using alkaline solution cleaning in electro-conductive glass one
The conductive film of side can reduce the alignment liquid of subsequent sprinkling and the contact angle of conductive film, and the surface for improving conductive film is living
Property, allow alignment liquid abundant free diffusing on conductive film, and form the uniform alignment film of coating.
Fig. 2 is the flow chart of the cleaning method of another electro-conductive glass provided in an embodiment of the present invention.Optionally, figure is please referred to
2, after electro-conductive glass is provided with the side spray alkaline solution cleaning of conductive film, further include：Using plasma cleaning method
The side that electro-conductive glass is provided with conductive film is cleaned.Specifically, plasma cleaning is by applying on one group of electrode
Add radio-frequency voltage, forms high-frequency alternating field between the electrodes, gas in electric field region (such as N2) swashing in alternating electric field
Lower formation plasma active is swung, plasma active carries out physical bombardment to the conductive film surface of electro-conductive glass side and changes
Reaction dual effect is learned, so that the impurity on conductive film surface is become particle or gaseous material, to be detached from conductive film.Therefore, exist
Increase step 30 between step 10 and step 20, it is possible to reduce the impurity on conductive film surface improves alignment liquid in conductive film
The diffusivity on surface.
Fig. 3 is the flow chart of the cleaning method of another electro-conductive glass provided in an embodiment of the present invention.Optionally, figure is please referred to
3, before or after electro-conductive glass is provided with the side spray alkaline solution cleaning of conductive film, further include：Using ultraviolet
The side that line ablution is provided with conductive film to electro-conductive glass is cleaned.Specifically, ultraviolet cleaning is shone using ultraviolet light
Penetrate the surface of conductive film, the O near conductive film surface2Under the action of ultraviolet light, O and O is formed3, utilize O and O3It is strong
Oxidisability makes the impurity on conductive film surface, especially organic matter, becomes volatilizable gas by oxidation reaction, so as to
The pollutant on conductive film surface is enough removed, and then the hydrophily and adhesive strength on conductive film surface can be improved, after reduction
The alignment liquid of continuous sprinkling and the contact angle of conductive film.
It should be noted that before and after executing step 10, while increasing step 40 and step 50, that is, it is using
Alkaline solution cleans before and after the conductive film of electro-conductive glass, and ultraviolet light ablution twice is respectively adopted and carries out to conductive film surface
Cleaning, can preferably remove the impurity on conductive film surface, improve the quality of forming film of alignment film.Alternatively, in practical applications,
Step 40 can also only be increased before step 10 according to actual needs, or only increase step 50, this implementation after step 10
Example is not specifically limited this.
Optionally, the cleaning temperature of alkaline solution can be 42 ± 2 DEG C.Specifically, and temperature has the performance of alignment liquid
Large effect.The reason is that, spraying to containing a certain amount of moisture in the alignment liquid on conductive film surface, if the temperature of alignment liquid
It spends low, is unfavorable for the abundant fusion of alignment liquid and moisture, cause alignment liquid that can not equably expand on conductive film surface
It dissipates；If the temperature of alignment liquid is excessively high, it is easy to cause the moisture in alignment liquid to evaporate very fast, alignment liquid precipitation is caused to crystallize into
Point, or even also result in the ingredient of alignment liquid when the temperature is excessively high and change.Therefore, the pharmacological property to make alignment liquid plays best,
Therefore need to adjust alignment liquid when spraying alignment liquid, the temperature range of alignment liquid can be controlled 40 to optimum temperature
℃-44℃.It should be noted that the cleaning temperature of alkaline solution provided in this embodiment includes but is not limited to 42 ± 2 DEG C.
Optionally, the spray time of alkaline solution can be 150s-300s.Specifically, if spray time is too short, orientation
With the insufficient contact of conductive film in liquid, do not utilize to form uniform alignment film；If spray time is too long, it will cause match
Waste to liquid increases production cost.Therefore, in practical applications, it is contemplated that the type of the conductive film on electro-conductive glass and
The factors such as the type of alignment liquid, it is comprehensive to determine specific spray time.It should be noted that alkaline solution provided in this embodiment
Spray time include but is not limited to 150s-300s range.
Optionally, the spray pressure of alkaline solution can be 1kg/cm2-2kg/cm2.Specifically, if spray pressure mistake
Greatly, it be easy to cause the damage of electro-conductive glass；If spray pressure is too small, it is unfavorable for alkaline solution and uniformly sprays and uniformly expand
It is scattered on conductive film.Therefore, the value range of spray pressure can be 1kg/cm2-2kg/cm2That is, spray pressure is common
Water pressure.But needs say that the spray pressure of alkaline solution provided in this embodiment includes but is not limited to above-mentioned value range.
Optionally, the spray distance of alkaline solution can be 20cm-40cm.Specifically, if spray is apart from too small, from
The alkaline solution that the nozzle of sprinkling equipment sprays cannot form good uniform misty, the alkali being sprayed at conductive film different location
The uniformity of property solution is poor, is unfavorable for forming uniform alignment film；If spray distance is too big, sprayed from the same nozzle
Alkaline solution can be sprayed to biggish range on conductive film, correspondingly, the conductive film in the unit time on unit area
The amount of the alkaline solution received is smaller, and the total spray time needed is longer, causes the production cycle of entire product elongated.But it needs
It to be said, the spray pressure of alkaline solution provided in this embodiment includes but is not limited to above-mentioned value range, in practical application
In, suitable spray distance can be determined according to factors such as the parameters of specific sprinkling equipment, alignment film.
Optionally, the pH value of alkaline solution is greater than 13.Specifically, orientation of the pH value of alkaline solution to subsequent sprinkling is reduced
The contact angle of liquid and conductive film has apparent influence, therefore, in order to significantly reduce the contact angle of conductive film, Ke Yishe
The pH value for setting alkaline solution is greater than 13.
Optionally, alkaline solution can be basic process cypress solution.Specifically, method cypress solution is that a kind of typical alkalinity is washed
Agent, basic process cypress solution can be compatible with water, and by the way that the basic process cypress solution of suitable concentration is arranged, available pH value can be big
In 13 alkaline solution, to meet the cleaning needs of conductive film.
Optionally, conductive film can be tin indium oxide ito thin film.Specifically, ITO has good electric conductivity and transparent
Property, it is a kind of excellent transparent conductive film.It, usually will using the methods of vapor deposition or sputtering when being used as transparent conductive film
ITO is sprayed in glass, plastics and electronic display.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of cleaning method of electro-conductive glass, which is characterized in that including：
It is cleaned in the side spray alkaline solution that the electro-conductive glass is provided with conductive film；
Alignment liquid is sprayed in the side that the electro-conductive glass is provided with conductive film.
2. the cleaning method of electro-conductive glass according to claim 1, which is characterized in that be provided with and lead in the electro-conductive glass
After the side spray alkaline solution cleaning of conductive film, further include：
It is cleaned using the side that plasma cleaning method is provided with conductive film to the electro-conductive glass.
3. the cleaning method of electro-conductive glass according to claim 1, which is characterized in that be provided with and lead in the electro-conductive glass
Before or after the side spray alkaline solution cleaning of conductive film, further include：Using ultraviolet light ablution to the conductive glass
The side that glass is provided with conductive film is cleaned.
4. the cleaning method of electro-conductive glass according to claim 1, which is characterized in that the cleaning temperature of the alkaline solution
It is 42 ± 2 DEG C.
5. the cleaning method of electro-conductive glass according to claim 1, which is characterized in that the spray time of the alkaline solution
For 150s-300s.
6. the cleaning method of electro-conductive glass according to claim 1, which is characterized in that the spray pressure of the alkaline solution
For 1kg/cm2-2kg/cm2。
7. the cleaning method of electro-conductive glass according to claim 1, which is characterized in that the spray distance of the alkaline solution
For 20cm-40cm.
8. the cleaning method of electro-conductive glass according to claim 1, which is characterized in that the pH value of the alkaline solution is greater than
13。
9. the cleaning method of electro-conductive glass according to claim 1, which is characterized in that the alkaline solution is basic process cypress
Solution.
10. the cleaning method of electro-conductive glass according to claim 1, which is characterized in that the conductive film is indium oxide
Tin ito thin film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810697261.1A CN108919565A (en) | 2018-06-29 | 2018-06-29 | A kind of cleaning method of electro-conductive glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810697261.1A CN108919565A (en) | 2018-06-29 | 2018-06-29 | A kind of cleaning method of electro-conductive glass |
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| CN108919565A true CN108919565A (en) | 2018-11-30 |
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| CN201810697261.1A Pending CN108919565A (en) | 2018-06-29 | 2018-06-29 | A kind of cleaning method of electro-conductive glass |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110928058A (en) * | 2019-12-13 | 2020-03-27 | 深圳市华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
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| CN102645790A (en) * | 2011-02-22 | 2012-08-22 | 斯坦雷电气株式会社 | Liquid crystal element and method of producing liquid crystal optical element |
| CN105637619A (en) * | 2013-11-22 | 2016-06-01 | 野村微科学股份有限公司 | Uv-transmitting-substrate cleaning device and cleaning method |
| CN107015704A (en) * | 2017-05-04 | 2017-08-04 | 江西赛华科技股份有限公司 | Traction function keyed capacitance touching control panel and its production method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101007951A (en) * | 2007-01-18 | 2007-08-01 | 四川大学 | Preparation method of polyimide liquid crystal vertical-tropism agent |
| US20120060870A1 (en) * | 2010-09-14 | 2012-03-15 | Samsung Mobile Display Co., Ltd. | Cleansing Apparatus for Substrate and Cleansing Method for the Same |
| CN102645790A (en) * | 2011-02-22 | 2012-08-22 | 斯坦雷电气株式会社 | Liquid crystal element and method of producing liquid crystal optical element |
| CN105637619A (en) * | 2013-11-22 | 2016-06-01 | 野村微科学股份有限公司 | Uv-transmitting-substrate cleaning device and cleaning method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110928058A (en) * | 2019-12-13 | 2020-03-27 | 深圳市华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
| WO2021114365A1 (en) * | 2019-12-13 | 2021-06-17 | 深圳市华星光电半导体显示技术有限公司 | Display panel and preparation method therefor |
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Application publication date: 20181130 |