CN105759510A - Section sealing method after liquid crystal box cutting - Google Patents
Section sealing method after liquid crystal box cutting Download PDFInfo
- Publication number
- CN105759510A CN105759510A CN201610203175.1A CN201610203175A CN105759510A CN 105759510 A CN105759510 A CN 105759510A CN 201610203175 A CN201610203175 A CN 201610203175A CN 105759510 A CN105759510 A CN 105759510A
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- China
- Prior art keywords
- liquid crystal
- crystal cell
- glue
- cutting
- silicon ball
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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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
-
- 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
- G02F1/133351—Manufacturing of individual cells out of a plurality of cells, e.g. by dicing
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a section sealing method after liquid crystal box cutting. The method includes the steps of firstly, mixing glue with preset silicon balls, and defoaming; coating the defoamed glue and preset silicon balls to the cut edge of a liquid crystal box; thirdly, sucking part of the glue and preset silicon balls back into the liquid crystal box through the negative pressure in the liquid crystal box; fourthly, curing the glue. The method has the advantages that the problem that the Mura phenomenon is caused by the box thickness change after the liquid crystal box cutting in the prior art is solved, the silicon balls are supported at the cut edge of the liquid crystal box, and the liquid crystal box thickness change caused by sealing glue curing is reduced.
Description
Technical field
The present invention relates to the field that liquid crystal cell makes, in particular it relates to the section encapsulating method after liquid crystal cell cutting.
Background technology
Liquid crystal display is subject to using space restriction sometimes, it is therefore desirable to the liquid crystal display screen of special pattern.Although the liquid crystal display screen on market is of a great variety, but it is a lack of the liquid crystal display screen of distinctive appearance.If seeking liquid crystal display screen producer design liquid crystal display screen, not only the few cost of amount improves and production life cycle is long.Liquid crystal cell cutting technique can well meet the requirement of the special pattern of liquid crystal display, but this method shows the defect of Mura after there is a cutting.This have the drawback that due to liquid crystal display screen cut after section sealing compound seal, owing to the contractility of sealing compound is bigger, therefore the cutting edge of liquid crystal display screen can cause that under the contraction of sealing compound cutting edge thickness of liquid crystal box is thinning, so may result in and liquid crystal display screen Mura occurs.
Birefringence and the thickness of liquid crystal layer of liquid crystal is depended in the color of liquid crystal cell and brightness.When the director of liquid crystal cell uniformly distorts pi/2 along box thickness direction, distorted-structure is obedient to by its optical activity, it does not have optical dispersion.When liquid crystal cell is thinning, the director of liquid crystal cell uniformly distorts not enough pi/2 and then there will be Mura phenomenon along box thickness direction.Cause that Mura phenomenon occurs for solving liquid crystal cell cutting back box thickness change, it is necessary to introduce a kind of method and eliminate the change of cutting edge thickness of liquid crystal box.
Summary of the invention
It is an object of the invention to provide the section encapsulating method after the cutting of a kind of liquid crystal cell, section encapsulating method after the cutting of this liquid crystal cell overcomes liquid crystal cell of the prior art cutting back box thickness and becomes the problem causing Mura phenomenon occur, by the cutting edge being supported on liquid crystal cell of silicon ball, thus reducing the thickness of liquid crystal box change that sealing compound cure shrinkage produces.
To achieve these goals, the invention provides the section encapsulating method after the cutting of a kind of liquid crystal cell, the section encapsulating method after the cutting of this liquid crystal cell includes:
Step 1, mixes glue and default silicon ball and carries out deaeration；
Step 2, is coated to the position of liquid crystal cell cutting edge by the glue after deaeration and default silicon ball；
Step 3, by the inside by described for part glue and default silicon ball suck-back to liquid crystal cell of the negative pressure in liquid crystal cell；
Step 4, solidifies described glue.
Preferably, in step 3, the diameter of described default silicon ball is less than the thickness of described liquid crystal cell.
Preferably, in step 3, the weight ratio of described glue and default silicon ball is between 7:1-12:1.
Preferably, in step 3, the weight ratio of described glue and default silicon ball is 10:1.
Preferably, in step 1, step glue and default silicon ball mixed includes:
Carry out sealing homogenizing to glue and default silicon ball by mulser, with centrifugal defoaming machine, glue and default silicon ball are carried out de-bubble afterwards.
Preferably, the rotating speed of described mulser is 3500-4500rpm, it is preferred to 4000rpm.
Preferably, the mixing time of described mulser is 4-6min, it is preferred to 5min.
Preferably, in step 1, the rotating speed of described centrifugal defoaming machine is 4500-5500, it is preferred to 5000.
Preferably, in step 1, the de-bubble time of described centrifugal defoaming machine is 25-35min, it is preferred to 30min.
Preferably, in step 4, it is 2W/cm by power density2Ultraviolet light glue is solidified.
The liquid crystal cell sealing effectiveness obtained by above-mentioned method is excellent, can be obviously improved display Mura.To offset glue curing contraction, the supporting role utilizing silicon ball causes that box thickness changes, thus reaching to improve display Mura.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and constitutes the part of description, is used for explaining the present invention, but is not intended that limitation of the present invention together with detailed description below.In the accompanying drawings:
Fig. 1 is the liquid crystal cell cutting clamper schematic diagram of section encapsulating method after a kind of liquid crystal cell cutting of the present invention is described.
Description of reference numerals
1 folder screen gap 2 spring
3 bolts
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.It should be appreciated that detailed description of the invention described herein is merely to illustrate and explains the present invention, it is not limited to the present invention.
The present invention provides the section encapsulating method after the cutting of a kind of liquid crystal cell, and the section encapsulating method after the cutting of this liquid crystal cell includes:
Step 1, mixes glue and default silicon ball and carries out deaeration；
Step 2, is coated to the position of liquid crystal cell cutting edge by the glue after deaeration and default silicon ball；
Step 3, by the inside by described for part glue and default silicon ball suck-back to liquid crystal cell of the negative pressure in liquid crystal cell；
Step 4, solidifies described glue.
By above-mentioned embodiment, the section encapsulating method after a kind of liquid crystal cell cutting of the present invention selects silicon ball, and silicon ball has stable chemical nature, the character that quality is harder, adds the character without influence on glue in sealing compound to, and has reliable supporting role.By the method for the present invention, display Mura can be obviously improved.To offset glue curing contraction, the supporting role utilizing silicon ball causes that box thickness changes, thus reaching to improve display Mura.
Below in conjunction with accompanying drawing 1, the present invention is further detailed, in the present invention, in order to improve the scope of application of the present invention, uses following detailed description of the invention to realize especially.
In a kind of detailed description of the invention of the present invention, in step 3, the diameter of described default silicon ball is less than the thickness of described liquid crystal cell.
The present invention selects the diameter (4 μm) the silicon ball less than thickness of liquid crystal layer (5 μm), is more beneficial for silicon ball less than the thickness of liquid crystal layer and infilters in liquid crystal cell.
In a kind of detailed description of the invention of the present invention, in step 3, the weight ratio of described glue and default silicon ball is between 7:1-12:1.
In this kind of embodiment, in step 3, the weight ratio of described glue and default silicon ball is 10:1.If sealing compound proportion is low, can not effectively sealing the liquid crystal cell of well cutting, if higher than sealing compound proportion, it cannot be guaranteed that the silicon ball of effective quantity infilters in liquid crystal cell and plays a supportive role, this ratio is through authenticated optimal proportion.
In a kind of detailed description of the invention of the present invention, in step 1, step glue and default silicon ball mixed may include that
Carry out sealing homogenizing to glue and default silicon ball by mulser, with centrifugal defoaming machine, glue and default silicon ball are carried out de-bubble afterwards.
The mulser that the present invention uses is the SGX500 airtight mulser of type laboratory.
The rotating speed of the described mulser that the present invention uses is 3500-4500rpm, it is preferred to 4000rpm.
In this kind of embodiment, the mixing time of described mulser is 4-6min, it is preferred to 5min.
In this kind of embodiment, in step 1, the rotating speed of described centrifugal defoaming machine is 4500-5500, it is preferred to 5000.
In this kind of embodiment, in step 1, the de-bubble time of described centrifugal defoaming machine is 25-35min, it is preferred to 30min.
In the most preferred embodiment of one of the present invention, in step 4, it is 2W/cm by power density2Ultraviolet light glue is solidified.
In the most preferred embodiment of one of the present invention, select the silicon ball that the diameter of a silicon ball is more smaller than thickness of liquid crystal box, coordinate by determining weight ratio (sealing compound: silicon ball=10:1), if sealing compound proportion is low, can not effectively seal the liquid crystal cell of well cutting, if higher than sealing compound proportion, it cannot be guaranteed that the silicon ball of effective quantity infilters in liquid crystal cell and plays a supportive role, this ratio is through authenticated optimal proportion.With mulser (the airtight mulser of SGX500 type laboratory) homogenizing (controlling rotating speed 4000rpm, mixing time 5min) after cooperation.With centrifugal defoaming machine (HC300 type centrifugal defoaming machine), the glue of preparation is carried out de-bubble (arranging rotating speed 5000rpm, time 30min) after emulsifying.After de-bubble, the glue prepared is placed in nitrogen protection cabinet and protects.Cut after liquid crystal display screen is arranged on cutting clamper, liquid crystal cell after having cut, the sealing compound prepared is installed on point gum machine (air pressure is set: 0.02Mpa) then on syringe install aperture be the syringe needle of 0.3mm, now opening point glue function, sealing compound is coated to the section of liquid crystal cell by control point glue speed 5cm/s uniformly, utilize the trickling levelling gradually of glue at cutting section after being coated with, be finally reached and section is completely covered.The cutting of liquid crystal display screen being pressed from both sides after sealing compound levelling and unclamp, now the negative pressure within liquid crystal cell is by inside related for sealing compound a small amount of silicon ball inspiration liquid crystal cell, finally with ultraviolet light (power density: 2W/cm2, irradiation time: 20s) sealing compound is solidified.
The present invention selects airtight stirring, and it is assorted that this kind of method ensures will not to be doped in homogenization process in air.The present invention selects evacuation and centrifugal degassing method, and this kind of method can carry out the deaeration of high-viscosity glue, and the deaeration effect of this kind of method is better than vacuum defoamation.The present invention selects liquid crystal cell cutting folder (such as Fig. 1) to carry out pressurize cutting, is placed in by liquid crystal display screen in folder screen gap 1, is then tightened by bolt 3 and clamp liquid crystal display screen, and spring 2 achieves elastic return.This cutting method can ensure that negative pressure within liquid crystal cell after liquid crystal cell cuts will not pressure release, after unclamping fixture, glue infilters inside liquid crystal cell when liquid crystal cell internal negative pressure.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing; but; the present invention is not limited to the detail in above-mentioned embodiment; in the technology concept of the present invention; technical scheme can being carried out multiple simple variant, these simple variant belong to protection scope of the present invention.
It is further to note that, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, it is possible to be combined by any suitable mode, in order to avoid unnecessary repetition, various possible compound modes are no longer illustrated by the present invention separately.
Additionally, can also carry out combination in any between the various different embodiment of the present invention, as long as it is without prejudice to the thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. the section encapsulating method after a liquid crystal cell cutting, it is characterised in that the section encapsulating method after the cutting of this liquid crystal cell includes:
Step 1, mixes glue and default silicon ball and carries out deaeration；
Step 2, is coated to the position of liquid crystal cell cutting edge by the glue after deaeration and default silicon ball；
Step 3, by the inside by described for part glue and default silicon ball suck-back to liquid crystal cell of the negative pressure in liquid crystal cell；
Step 4, solidifies described glue.
2. the section encapsulating method after liquid crystal cell according to claim 1 cutting, it is characterised in that in step 3, the diameter of described default silicon ball is less than the thickness of described liquid crystal cell.
3. the section encapsulating method after liquid crystal cell according to claim 1 cutting, it is characterised in that in step 3, the weight ratio of described glue and default silicon ball is between 7:1-12:1.
4. the section encapsulating method after liquid crystal cell according to claim 3 cutting, it is characterised in that in step 3, the weight ratio of described glue and default silicon ball is 10:1.
5. the section encapsulating method after liquid crystal cell according to claim 1 cutting, it is characterised in that in step 1, the step that glue and default silicon ball are mixed includes:
Carry out sealing homogenizing to glue and default silicon ball by mulser, with centrifugal defoaming machine, glue and default silicon ball are carried out de-bubble afterwards.
6. the section encapsulating method after liquid crystal cell according to claim 5 cutting, it is characterised in that the rotating speed of described mulser is 3500-4500rpm, it is preferred to 4000rpm.
7. the section encapsulating method after liquid crystal cell according to claim 5 cutting, the mixing time of described mulser is 4-6min, it is preferred to 5min.
8. the section encapsulating method after liquid crystal cell according to claim 5 cutting, it is characterised in that in step 1, the rotating speed of described centrifugal defoaming machine is 4500-5500, it is preferred to 5000.
9. the section encapsulating method after liquid crystal cell according to claim 5 cutting, it is characterised in that in step 1, the de-bubble time of described centrifugal defoaming machine is 25-35min, it is preferred to 30min.
10. the section encapsulating method after liquid crystal cell according to claim 5 cutting, it is characterised in that in step 4, be 2W/cm by power density2Ultraviolet light glue is solidified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610203175.1A CN105759510A (en) | 2016-04-05 | 2016-04-05 | Section sealing method after liquid crystal box cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610203175.1A CN105759510A (en) | 2016-04-05 | 2016-04-05 | Section sealing method after liquid crystal box cutting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105759510A true CN105759510A (en) | 2016-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610203175.1A Pending CN105759510A (en) | 2016-04-05 | 2016-04-05 | Section sealing method after liquid crystal box cutting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107092106A (en) * | 2017-02-24 | 2017-08-25 | 中国电子科技集团公司第五十五研究所 | A kind of elimination liquid crystal display amount of liquid crystal excessively causes gravity Mura method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57154223A (en) * | 1981-03-19 | 1982-09-24 | Canon Inc | Manufacture of electrooptic display device |
| CN2781415Y (en) * | 2004-12-28 | 2006-05-17 | 中国电子科技集团公司第五十五研究所 | Active matrix liquid crystal display of square or nonstandard size |
| KR20080075398A (en) * | 2007-02-12 | 2008-08-18 | 주식회사 토비스 | Cutting method of tft-lcd panal |
| US20140085579A1 (en) * | 2012-09-27 | 2014-03-27 | Omnivision Technologies (Shanghai) Co., Ltd. | Lcos panel and method of manufacturing the same |
| CN103744231A (en) * | 2014-01-20 | 2014-04-23 | 吴若鹏 | Method of adjusting size of electronic display |
-
2016
- 2016-04-05 CN CN201610203175.1A patent/CN105759510A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57154223A (en) * | 1981-03-19 | 1982-09-24 | Canon Inc | Manufacture of electrooptic display device |
| CN2781415Y (en) * | 2004-12-28 | 2006-05-17 | 中国电子科技集团公司第五十五研究所 | Active matrix liquid crystal display of square or nonstandard size |
| KR20080075398A (en) * | 2007-02-12 | 2008-08-18 | 주식회사 토비스 | Cutting method of tft-lcd panal |
| US20140085579A1 (en) * | 2012-09-27 | 2014-03-27 | Omnivision Technologies (Shanghai) Co., Ltd. | Lcos panel and method of manufacturing the same |
| CN103744231A (en) * | 2014-01-20 | 2014-04-23 | 吴若鹏 | Method of adjusting size of electronic display |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107092106A (en) * | 2017-02-24 | 2017-08-25 | 中国电子科技集团公司第五十五研究所 | A kind of elimination liquid crystal display amount of liquid crystal excessively causes gravity Mura method |
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Application publication date: 20160713 |
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| RJ01 | Rejection of invention patent application after publication |