CN105022181B - Method for separating polarizing film of liquid crystal glass by microwave heating - Google Patents
Method for separating polarizing film of liquid crystal glass by microwave heating Download PDFInfo
- Publication number
- CN105022181B CN105022181B CN201510182153.7A CN201510182153A CN105022181B CN 105022181 B CN105022181 B CN 105022181B CN 201510182153 A CN201510182153 A CN 201510182153A CN 105022181 B CN105022181 B CN 105022181B
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- China
- Prior art keywords
- polarizing film
- light polarizing
- microwave
- liquid
- crystalline glasses
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- Expired - Fee Related
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- 239000011521 glass Substances 0.000 title claims abstract description 85
- 238000010438 heat treatment Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 19
- 230000009471 action Effects 0.000 claims description 12
- 238000000926 separation method Methods 0.000 claims description 11
- 230000004044 response Effects 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 229920000297 Rayon Polymers 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000021760 high fever Diseases 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133334—Electromagnetic shields
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Processing Of Solid Wastes (AREA)
- Polarising Elements (AREA)
Abstract
The invention relates to a method for heating and separating a polarizing film of liquid crystal glass by microwaves, which mainly utilizes the fact that when the microwaves are applied to a liquid crystal glass panel, the microwaves selectively act on a lead on the liquid crystal glass panel to generate thermal reaction, so that the joint degree of the polarizing film on the liquid crystal glass panel and the liquid crystal glass panel is reduced, and the polarizing film is easy to remove from the liquid crystal glass panel.
Description
Technical field
The present invention is related to a kind of method of the light polarizing film of microwave heating separation liquid-crystalline glasses, particularly relates to add using microwave
Heat, the degree of engagement between light polarizing film and liquid-crystalline glasses panel is reduced, and be easy to the method removed from liquid-crystalline glasses panel.
Background technology
Liquid crystal display is speed with fastest developing speed, and the display most generally used at present, and gradually aobvious with old tide is eliminated
Existing, in order to avoid discarded liquid-crystalline glasses cause environmental hazard, reclaiming discarded liquid-crystalline glasses, therefore phase shape is important.
It is to remove the light polarizing film being attached on liquid-crystalline glasses panel that discarded liquid-crystalline glasses, which reclaim an important step, such as
Light polarizing film.The means of early stage processing are to remove light polarizing film burning the heating of discarded liquid-crystalline glasses, and the mode removed of burning is removed
The heat transfer effects of glass are slower, and outside processing time is longer, waste gas caused by light polarizing film burning also needs to be acted upon, and avoids
Air is polluted, glass surface, thus processing cost height are stayed in plus easily there is carbon residue.Furthermore light polarizing film is generally PET materials,
It is high value plastics, directly burning, which removes, also makes it can not recycling.
Wherein, the resource reclaim processing unit and method of the waste liquid crystal display of TaiWan, China patent of invention the 527232nd
Open source literature in disclose a kind of method for removing light polarizing film, this method can solve foregoing burn off light polarizing film and produce asking for waste gas
Topic, first gets off the glass accurate cutting of flat-panel screens, is separated liquid crystal material with ultrasonic vibrating with dipping spirit solvent
Give incineration again, the sheet glass of light polarizing film is sticked more than heating institute to 150 DEG C, titanium oxide conduction glass is pluged with molten metal via heat a period of time
After glass substrate is immersed in thermal insulation formula liquid nitrogen immersion groove, to make light polarizing film below come off；Due to integrally being heated to light polarizing film
Its softening can be made, the stickiness for being attached at glass can be higher, therefore is not yet completely dried consolidation by emplastic in light polarizing film, utilizes
Rapidly cold true effect makes the emplastic of light polarizing film not consolidate to cohere on glass and be easily peeled off and come off after heating.But
The time of aforesaid way processing is longer, and needs to impregnate liquid-crystalline glasses in liquid nitrogen, and required processing cost is also higher.
Inventor is it is proposed that the microwave drying processing procedure of the recovery LCD screen of TaiWan, China patent I 233843
Patent, drying process is finally needed after the recycling by wet process for discarded liquid-crystalline glasses panel in the case, and
Traditional heated air drying and infrared heating mode are time-consuming relatively long, therefore propose the drying process of microwave heating, mainly using micro-
The selective heat characteristic of ripple, wherein glass do not absorb microwave, and water, after microwave is absorbed, moment high fever makes moisture steam rapidly
Hair, shorten the drying process time.
The content of the invention
Thermal property is added based on microwave selecting type, because metal can also be produced thermal response after microwave action, inventor enters
One step utilizes and equally distributed wire is remained on discarded liquid-crystalline glasses panel, therefore applies microwave to wire, and wire is made by microwave
With rear generation high fever, the viscose in the light polarizing film on neighbouring liquid-crystalline glasses panel can be made to be destroyed because heated, prior art thinks
Its softening can be made due to integrally being heated to light polarizing film, the stickiness for being attached at glass can be higher, is not easy to stripping and comes off, but this case is adopted
Local heating mode, heat acts on destruction viscose, rather than overall light polarizing film is heated and softened, thus reduction and liquid-crystalline glasses
Degree of engagement between panel, make it easy to remove, not only technological means is different, and the mechanism function of caused destruction is to adopt sensing
Mode of heating, execution are also concentrated on viscose.
The present invention is a kind of method of the light polarizing film of microwave heating separation liquid-crystalline glasses, is comprised the following steps：
A. a microwave is applied on a liquid-crystalline glasses panel；B. the microwave action one leading on the liquid-crystalline glasses panel
Line, thermal response is produced, the light polarizing film on the liquid-crystalline glasses panel is reduced the degree of engagement with foregoing liquid crystal glass panel；C.
The light polarizing film is removed from the liquid-crystalline glasses panel.
Further, reduced described in step B the light polarizing film and foregoing liquid crystal glass panel degree of engagement refer to reduce this it is inclined
The bond strength of a bonding layer between light film and foregoing liquid crystal glass panel, the wherein bonding layer such as viscose.
Further, removal signified step C refers to peel off the light polarizing film from the liquid-crystalline glasses panel.
Further in step, for internal volume between 17 liters to 20 liters of microwave field, the power of the microwave between
800 watts to 1000 watts, the microwave action time was between 10 seconds to 40 seconds.It is preferred that the power of the microwave is 900 watts, microwave is made
It it is 30 seconds with the time.
Further, during using aforementioned power removing light polarizing film, the polarisation film thickness is preferably 0.4 millimeter.
The effect of of the invention, is：
1. the method for the present invention can quickly remove the light polarizing film on liquid-crystalline glasses panel, such as be gone with 900 watts of microwave
Except area be 50mm be multiplied by 50mm liquid-crystalline glasses panel, thickness be 0.4mm light polarizing film, it is only necessary to less than 30 seconds when
Between, not only the heat time is short, and cool time is also short；And in addition to processing time is short, microwave treatment cost is compared with existing way just
Preferably；
2. remove the light polarizing film on liquid-crystalline glasses panel using the method for the present invention, the light polarizing film by the ratio of burn off very
It is few, less than 10%, too many waste gas will not be produced, or even the light polarizing film of recovery also can be recycled further；
After 3. aforementioned wire produces heat by microwave action, the glass part of liquid-crystalline glasses panel, which can absorb heat, makes inside
Because high-temperature expansion produces bubble, cellular glass is formed, therefore liquid-crystalline glasses panel passes through subsequent treatment after light polarizing film is removed,
There is the effect of heat-insulated simultaneously by the bubble on glass, can be used as the light weight building materials of tool effect of heat insulation；By remaining in the glass
Equally distributed wire has the function that to completely cut off electromagnetic wave on glass, and this glass material also has electromagnetic shielding function.
Brief description of the drawings
Fig. 1 is the flow chart of the embodiment of the present invention；
Fig. 2 is the combination kenel schematic diagram of liquid-crystalline glasses panel and light polarizing film in the embodiment of the present invention；
Fig. 3 is the arrangement of conductors schematic diagram on liquid-crystalline glasses panel in the embodiment of the present invention；
Fig. 4 be part bonding layer of the present invention or further have part light polarizing film because of heat absorption and moment burning caused by white light
Schematic diagram；
Fig. 5 is the schematic diagram of light polarizing film loss after the present invention is heated 10 seconds with microwave；
Fig. 6 is the schematic diagram of light polarizing film loss after the present invention is heated 30 seconds with microwave；
Fig. 7 is after the present invention is heated with microwave, and the remainder of light polarizing film is then because of instantaneous high-temperature and along point of the wire
Cloth kenel ruptures schematic diagram.
Description of symbols in description above accompanying drawing is as follows：
1 liquid-crystalline glasses panel
2 light polarizing films
3 bonding layers
4 wires
Embodiment
Summary technical characteristic, the primary efficacy of the method for the light polarizing film of microwave heating separation liquid-crystalline glasses of the present invention will
It can be clearly appeared from following embodiments.
Refer to shown in Fig. 1 and Fig. 2, the present embodiment applies a microwave on a liquid-crystalline glasses panel 1, to remove the liquid crystal
A light polarizing film on glass panel 1, the wherein light polarizing film 2 are incorporated on the liquid-crystalline glasses panel 1 through a bonding layer 3, should
Bonding layer 3 is, for example, viscose：
A. microwave action in the power of foregoing liquid crystal glass panel 1 between 800 watts to 1000 watts, the microwave action time between
10 seconds to 40 seconds；It is preferred that the power of the microwave is 900 watts, the microwave action time is 30 seconds.The present embodiment using area as
50mm is multiplied by 50mm, and thickness is 0.8mm liquid-crystalline glasses panel 1, and the thickness of light polarizing film 2 on the liquid-crystalline glasses panel 1 is 0.4mm
Tested, wherein microwave power is 900 watts, and the microwave time is respectively 10 seconds and 30 seconds.
B. as shown in fig.3, there is the wire 4 of matrix kenel on the liquid-crystalline glasses panel 1, general material be stainless steel, aluminium,
Indium tin oxide or the thin copper of sheet.When foregoing microwave is applied to foregoing liquid crystal glass panel 1, due to the heating of microwave selecting type
Characteristic, the wire 4 can be produced thermal response by the microwave action.
C. refer to shown in Fig. 4, foregoing bonding layer 3 absorbs heat caused by the wire 4, thus reduces and the light polarizing film 2
And the bond strength of the liquid-crystalline glasses panel 1, decline the light polarizing film 2 and the degree of engagement of the liquid-crystalline glasses panel 1, Fig. 4 is
Part bonding layer 3 or further have part light polarizing film 1 because of heat absorption and moment burning caused by white light.Referring again to Fig. 5 and Fig. 6,
When the microwave field that 17.9 liters of volume, wherein microwave heat 10 seconds, measurement temperature is about 157 DEG C, and the bodies lost weight of light polarizing film 2 is
0.02 gram；When microwave heats 30 seconds, measurement temperature is about 178 DEG C, and the bodies lost weight of light polarizing film 2 is 0.09 gram.As shown in fig.7,
The remainder of the light polarizing film 2 then ruptures because of instantaneous high-temperature along the profile shape of the wire 4.
D., the light polarizing film 2 can now peel off to removal from the liquid-crystalline glasses panel 1 easily, the separation before and after microwave treatment
Required strength differs 4 times to 10 times, significant effect.
It is noted that after aforementioned wire 4 is produced heat by the microwave action, the glass of the liquid-crystalline glasses panel 1
Part, which can also absorb heat, makes inside glass because high-temperature expansion produces bubble, therefore passes through again after the liquid-crystalline glasses panel 1 recovery
Subsequent treatment, it can be used as light weight building materials.There is the effect of heat-insulated by the bubble on the liquid-crystalline glasses panel 1；By remaining in
Equally distributed wire 3 has the function that to completely cut off electromagnetic wave, i.e. its property of glass after microwave treatment on the liquid-crystalline glasses panel 1
Matter is unlike the prior art.
The explanation of summary embodiment, when can be fully understood by the present invention operation, use and the present invention produce the effect of,
The upper embodiment is only for presently preferred embodiments of the present invention, as the scope that the present invention can not be limited with this implement, i.e. Yi Benfa
Bright claim and invention description content makees simple equivalent changes and modifications, in the range of all the category present invention covers.
Claims (6)
- A kind of 1. method of the light polarizing film of microwave heating separation liquid-crystalline glasses, it is characterised in that it comprises the following steps：A, a microwave is applied on a liquid-crystalline glasses panel；B, a wire of the microwave action on the liquid-crystalline glasses panel, thermal response is produced, makes one on the liquid-crystalline glasses panel Light polarizing film reduces the degree of engagement with foregoing liquid crystal glass panel, and described reduction light polarizing film connects with foregoing liquid crystal glass panel Conjunction degree refers to reduce the bond strength of the bonding layer between the light polarizing film and foregoing liquid crystal panel；C, the light polarizing film is removed from the liquid-crystalline glasses panel.
- 2. the method for the light polarizing film of microwave heating separation liquid-crystalline glasses according to claim 1, it is characterised in that：Step C Signified removal refers to peel off the light polarizing film from the liquid-crystalline glasses panel.
- 3. the method for the light polarizing film of microwave heating separation liquid-crystalline glasses according to claim 1, it is characterised in that：Step A In, volume is between 17 liters to 20 liters of microwave field, and the power of the microwave is between 800 watts to 1000 watts, the microwave action time Between 10 seconds to 40 seconds.
- 4. the method for the light polarizing film of microwave heating separation liquid-crystalline glasses according to claim 3, it is characterised in that：Volume is situated between In 17 liters to 20 liters of microwave field, the power of the microwave is 900 watts, and the microwave action time is 30 seconds.
- 5. the method for the light polarizing film of microwave heating separation liquid-crystalline glasses according to claim 1, it is characterised in that：It is described inclined Light film thickness is 0.4 millimeter.
- 6. the method for the light polarizing film of microwave heating separation liquid-crystalline glasses according to claim 1, it is characterised in that：In step In B, the temperature range for producing thermal response is 157 DEG C to 178 DEG C.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103114261A TWI528070B (en) | 2014-04-18 | 2014-04-18 | Method of removing the polymer film of LCD module by microwave heating |
| TWTW103114261 | 2014-04-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105022181A CN105022181A (en) | 2015-11-04 |
| CN105022181B true CN105022181B (en) | 2017-12-29 |
Family
ID=54412266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510182153.7A Expired - Fee Related CN105022181B (en) | 2014-04-18 | 2015-04-17 | Method for separating polarizing film of liquid crystal glass by microwave heating |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105022181B (en) |
| TW (1) | TWI528070B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353544A (en) * | 2015-12-05 | 2016-02-24 | 邱成峰 | Method for manufacturing flexible LCD panel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1359316A (en) * | 1998-08-27 | 2002-07-17 | 安农公司 | Method of removing organic materials from substrates |
| TW527232B (en) * | 2001-01-10 | 2003-04-11 | Ching-Hua Li | Device and method for recycling and processing disposed LCD |
| CN1897219A (en) * | 1996-08-27 | 2007-01-17 | 精工爱普生株式会社 | Transferring method |
| CN101920592A (en) * | 2009-06-10 | 2010-12-22 | 友达光电(厦门)有限公司 | Polarizer stripping device and stripping method thereof |
| CN103021821A (en) * | 2012-11-27 | 2013-04-03 | 复旦大学 | Metal or semiconductor structure on flexible substrate and annealing method of metal or semiconductor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG165202A1 (en) * | 2009-03-25 | 2010-10-28 | United Technologies Corp | Method and apparatus for cleaning a component using microwave radiation |
-
2014
- 2014-04-18 TW TW103114261A patent/TWI528070B/en not_active IP Right Cessation
-
2015
- 2015-04-17 CN CN201510182153.7A patent/CN105022181B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1897219A (en) * | 1996-08-27 | 2007-01-17 | 精工爱普生株式会社 | Transferring method |
| CN1359316A (en) * | 1998-08-27 | 2002-07-17 | 安农公司 | Method of removing organic materials from substrates |
| TW527232B (en) * | 2001-01-10 | 2003-04-11 | Ching-Hua Li | Device and method for recycling and processing disposed LCD |
| CN101920592A (en) * | 2009-06-10 | 2010-12-22 | 友达光电(厦门)有限公司 | Polarizer stripping device and stripping method thereof |
| CN103021821A (en) * | 2012-11-27 | 2013-04-03 | 复旦大学 | Metal or semiconductor structure on flexible substrate and annealing method of metal or semiconductor |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI528070B (en) | 2016-04-01 |
| CN105022181A (en) | 2015-11-04 |
| TW201541146A (en) | 2015-11-01 |
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