CN104809960B - Display device and its manufacture method and transparent resin filler - Google Patents
Display device and its manufacture method and transparent resin filler Download PDFInfo
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- CN104809960B CN104809960B CN201510219100.8A CN201510219100A CN104809960B CN 104809960 B CN104809960 B CN 104809960B CN 201510219100 A CN201510219100 A CN 201510219100A CN 104809960 B CN104809960 B CN 104809960B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
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Abstract
The present invention provides display device and its manufacture method and transparent resin filler with superior re-workability.As image display panel（2）And surface panel（3）Between transparent resin layer（4）Material, using being multiplied by the transparent resin filler that the value after adhesive strength is less than 400 to the hardness for showing as shore E after hardening of resin（5）.Thus, in transparent resin layer（4）In have the exception that foreign matter is mixed into etc. in the case of, reprocessing component can be made in image display panel（2）And surface panel（3）Between be easily moved, being capable of separate picture display panel（2）And surface panel（3）.
Description
Technical field
It is saturating after making transparent resin filler hardening the present invention relates to having between image display panel and surface panel
The display device and its manufacture method and transparent resin filler of ming tree lipid layer.
Background technology
In the past, it is proposed that transparent resin filler is filled between image display panel and surface panel and makes what it was hardened
Display device.As transparent resin filler, using the Photoelasticity resin with index matching, make display device can
Improved depending on property and impact resistance（For example, referring to patent document 1,2.）.
As the fill method of resin, in the past using inversion mode as follows：To image display panel or surface face
Any one application of resin of plate, resin is not hung down oppositely with deadweight, be bonded in a manner of no bubble is mixed.
Further it is proposed that tilt any one of image display panel or surface panel and incline to what is be filled therebetween
Oblique mode, abreast configure image display panel and surface panel and therebetween potting resin between gap with ensuring defined gap value
Gap-distribution（Gap-Dispense）Mode.
But there is the mixed situation of foreign matter of bubble etc. in the resin filled between image display panel and surface panel
Under, upon hardening or hardening it is laggard be about to image display panel and surface panel separation repairing（repair）Operation（For example, ginseng
According to patent document 3,4.）.In repair operation particularly after the resin has hardened, image display panel and surface panel are peeled off into institute
The peel strength needed becomes big, it is possible to which image display panel, surface panel are caused to damage.Can be easily therefore, it is intended that improving
And reliably by image display panel and surface panel are peeled off and are recycled stripping recycling property, so-called reprocessing
（rework）Property.
Prior art literature
Patent document
Patent document 1：WO2008/007800 publications；
Patent document 2：WO2008/126893 publications；
Patent document 3：Japanese Unexamined Patent Publication 2009-186961 publications；
Patent document 4：Japanese Unexamined Patent Publication 2009-186962 publications.
The content of the invention
The invention problem to be solved
The present invention be in view of above-mentioned actual conditions and complete, its object is to provide a kind of to have superior re-workability
Display device and its manufacture method and transparent resin filler.
For solving the scheme of problem
The result that various researchs are repeated in the present inventors is found, if to showing as shore（Shore）E hardness multiplies
With adhesive strength（Cohesiveness）Value afterwards is less than 400, then the stripping required for peeling off image display panel and surface panel is strong
Degree diminishes, it is possible to increase the re-workability after hardening of resin.
That is, display device of the invention, it is to have to fill transparent resin between image display panel and surface panel
The image display device of transparent resin layer after agent hardening, it is characterised in that the hardness for showing as shore E of transparent resin layer is
E4/15~E8/15, the value after adhesive strength is multiplied by hardness as less than 400.
In addition, the manufacture method of the display device of the present invention is characterised by having：Filling work procedure, in picture display face
Transparent resin filler is filled between plate and surface panel；Hardening process, transparent resin filler is hardened, form transparent resin
Layer；And removal step, in the case of having foreign matter mixed in transparent resin layer, make reprocessing component in surface panel and image
Being moved between display panel, remove transparent resin layer, the hardness for showing as shore E of transparent resin layer is E4/15~E8/15,
The value after adhesive strength is multiplied by hardness as less than 400.
In addition, the present invention transparent resin filler, be filled in it is transparent between image display panel and surface panel
Resin filler, it is characterised in that the hardness for showing as shore E after hardening is E4/15~E8/15, and bonding is multiplied by hardness
Value after intensity is less than 400.
Here, the hardness for showing as shore E is by the sample after the hardening by transparent resin filler（sample）Put
It is placed in the E type hardness tester meters according to JIS K6253（durometer）, obtained from being measured from the contact for giving as security pin after 15 seconds.
In addition, adhesive strength obtains in the following manner：One panel is fixed, using pressing, fixture pressing is another
The edge part of individual panel, the stress required for before both separate is determined, by stress divided by unit area.
According to the present invention, due to the value after adhesive strength is multiplied by the hardness for showing as shore E of hardening of resin thing small, institute
So that the peel strength required for peeling off image display panel and surface panel also diminishes, it is possible to increase adding again after hardening of resin
Work.
Brief description of the drawings
Fig. 1 is the profile for the major part for representing display device.
Fig. 2 is the flow chart of an example of the manufacture method for representing display device.
Fig. 3 is the profile for the major part for representing the display device in filling work procedure.
Fig. 4 is the profile for the major part for representing the display device in hardening process.
Fig. 5 is the profile for the major part for representing the display device in removal step.
Fig. 6 is the top view for the concrete example 1 for representing shearing device.
Fig. 7 is the top view for the concrete example 2 for representing shearing device.
Embodiment
Hereinafter, for applying specific embodiment of the invention, enter referring to the drawings and in detail according to following orders
Row explanation.
1. display device
2. the manufacture method of display device
3. embodiment
The display device ＞ of ＜ 1.
Fig. 1 is the profile for the major part for representing display device.The display device 1 has：Image display panel 2, table
Faceplate panels 3 and make between image display panel 2 and surface panel 3 transparent resin filler harden after transparent resin layer
4.Here, display device 1 is not particularly limited, it is the tool of liquid crystal display device, pocket telephone, portable game device etc.
There is the electronic equipment of display part.
Image display panel 2 is, for example, liquid crystal display panel or plasma panel, organic EL
（Electroluminescence Display, electroluminescent display）The panel of the energy display image of sheet material etc..As image
The surfacing of surface panel 2, preferably using optical glass or plastics（Acrylic resin etc.）.
Surface panel 3 is made up of the component of the tabular with 2 equal size of image display panel, sheet or film-form.As
Component, preferably using optical glass or plastics（Polymethyl methacrylate（PMMA）Deng acrylic resin, makrolon etc.）.
Also may be used in addition, forming the optical layers such as antireflection film, photomask, viewing angle control film on the surface of surface panel 3 or the back side.
Transparent resin layer 4 is provided between image display panel 2 and surface panel 3, hardens transparent resin filler
Layer afterwards.Although in the hardening of transparent resin filler using heating or ultraviolet irradiate at least any one, from
From the viewpoint of preventing the cause thermal damage to image display panel 2, preferably irradiated using ultraviolet.
Here, the transparent resin filler of the ultraviolet ray hardening type for being irradiated and being hardened using ultraviolet is illustrated.
Transparent resin filler is preferably with the photoreactivity acrylate material and light of urethane acrylate, isobornyl acrylate etc.
Polymerization initiator is as host.
Such as, it can be preferred to use the resin combination containing following material：Urethane acrylate, polyisoprene class third
More than one polymer, the isobomyl acrylate such as olefin(e) acid ester or its carboxylate, terpenes hydrogenation resin, butadiene polymers
Ester,（Methyl）Acrylic acid dicyclopentenyl epoxide ethyl ester,（Methyl）More than one the esters of acrylic acids such as acrylic acid 2- hydroxybutyls
The Photoepolymerizationinitiater initiater such as monomer and 1- hydroxycyclohexylphenylketones.Others can be also added in the range of the object of the invention
Additive, for example, sensitizer, plasticizer, transparent particles etc..
Although the viscosity of transparent resin filler is not particularly limited, from surface tension, the viewpoint of moistening expansion rate
Set out, preferably 500~5000mPas, more preferably 500~3000mPas.
Refractive index when hardening transparent resin filler by image display panel 2, the material of surface panel 3 relation
Determine.For example, it is optical glass on the surface of the side of transparent resin layer 4 of image display panel 2, the transparent resin of surface panel 3
In the case of acrylic resin of the surface of 4 side of layer for polymethyl methacrylate etc., the refractive index of transparent resin layer 4 is preferably
1.51~1.52.
In addition, the curing shrinkage rate when hardening transparent resin filler is less than 2.5%.Thus, can make in transparent tree
The internal stress that fat filler is put aside when hardening is reduced, and can be prevented in image display panel 2 or surface panel 3 and transparent resin
The interface of layer 4 is deformed.Here, curing shrinkage rate is with reference to JIS K6901（5. 12）Cubical contraction.
In addition, make transparent resin filler harden after transparent resin layer 4 the hardness for showing as shore E for E4/15~
E8/15.Thereby, it is possible to ensure impact resistance.The hardness for showing as shore E is by the examination after transparent resin filler is hardened
Sample is positioned over the E type hardness tester meters according to JIS K6253, obtained from being measured from being given as security pin contact after 15 seconds.
In addition, the adhesive strength of transparent resin layer 4（Cohesiveness）It is 20~80N/cm at room temperature2.Thereby, it is possible to prevent
Warpage can not be followed and produce the situation that cohesion destroys.As the assay method of adhesive strength in this, a panel is consolidated
It is fixed, utilize the edge part for pressing fixture and pressing another panel.Then, the maximum of the stress when separating the two panels is determined
Value, divided by unit area, thus as adhesive strength.
In addition, for transparent resin layer 4, adhesive strength is multiplied by the hardness for showing as shore E（Cohesiveness）Value afterwards
For less than 400.If the value after hardness is multiplied with adhesive strength is more than 400, it is likely that to image display panel 2 or surface face
Plate 3 causes to damage.Value after hardness is multiplied with adhesive strength is less than 400, thus, reprocesses component（Line（wire））Saturating
Movement becomes easy in ming tree lipid layer 4, can improve re-workability.
The manufacture method ＞ of the display devices of ＜ 2.
Then, illustrated for the manufacture method of above-mentioned display device.Fig. 2 is the manufacture method for representing display device
An example flow chart.In addition, Fig. 3~5 are to represent aobvious in filling work procedure, hardening process and removal step respectively
The profile of the major part of showing device.Further, pair with shown in Fig. 1 the identical structure of display device 1 mark identical accompanying drawing
Mark, is omitted the description.
The manufacture method of the display device has：Filling work procedure（Step S1）, in image display panel 2 and surface panel 3
Between fill transparent resin filler 5；And hardening process（Step S2）, make the hardening of transparent resin filler 5 transparent to be formed
Resin bed 4.Also have：Inspection operation（Step S3）, check whether the exception for thering is foreign matter to be mixed into etc. in transparent resin layer 4；With
And removal step（Step S4）, in the case of having exception in transparent resin layer 4, make reprocessing component in image display panel 2
Moved between surface panel 3 to remove transparent resin layer 4.
First, in step S1 filling work procedure, as shown in figure 3, being filled out between surface panel 3 and image display panel 2
Fill transparent resin filler 5.As the fill method of transparent resin filler 5, can use inversion mode, angled manner, gap-
Method of salary distribution etc..In inversion mode, to any one of image display panel 2 or surface panel 3 coating transparent resin filling
Agent 5, transparent resin filler 5 is not hung down oppositely with deadweight, be bonded in a manner of no bubble is mixed to fill.This
Outside, in angled manner, any one of image display panel 2 or surface panel 3 are tilted, is filled out to filling transparent resin therebetween
Fill agent 5.In addition, in gap-method of salary distribution, it is ensured that abreast configure image display panel 2 and surface defined gap value
Panel 3, transparent resin filler 5 is filled between gap therebetween.In such filling mode, from the large-scale of reply display device 1
From the viewpoint of change, preferably using gap-method of salary distribution.In addition, by using the viscosity of transparent resin filler 5 for 500~
3000mPas transparent resin filler, so as to be extended under the weight of image display panel 2 or surface panel 3, and
Expansion rate is moistened to improve.
In step S2 hardening process, the hardening of transparent resin filler 5 is set to form transparent resin layer 4.Although saturating
In the hardening of ming tree fat filler 5 using heating or ultraviolet irradiate at least any one, still, from preventing to image
From the viewpoint of the cause thermal damage of display panel 2, preferably irradiated using ultraviolet.Transparent resin as ultraviolet ray hardening type is filled
Agent 5, use with the photoreactivity acrylate material of above-mentioned urethane acrylate, isobornyl acrylate etc. and photopolymerization
Transparent resin filler of the initiator as host.
As shown in figure 4, by ultraviolet（UV：Ultraviolet）Via surface panel 3 to remaining the saturating of defined thickness
Ming tree fat filler 4 is irradiated.Here, from further realize resin uniformly hardening from the viewpoint of, preferably from surface
The direction of the surface normal of panel 3 carries out ultraviolet irradiation.Furthermore it is preferred that while use such as optical fiber from display device 1
Ultraviolet is irradiated in edge part side, prevents the leakage of transparent resin filler 5.
In step S3 inspection operation, the transparent resin formed between image display panel 2 and surface panel 3 is checked
There is being mixed into for the foreign matters such as bubble-free, dust in layer 4.Inspection can be carried out by using the visual of light irradiation, image procossing etc..
In step S3, in the case where inspection result is good, terminate the process.
On the other hand, in step s3, the transparent resin layer 4 between image display panel 2 and surface panel 3 is being confirmed as
In the case of being inside mixed into the foreign matter of bubble etc., having exception, into step S4, remove the repair operation of transparent resin layer 4.
In step S4 removal step, as shown in figure 5, making the reprocessing component of the grade of line 20 move to cut off transparent resin
Layer 4, thus, separates image display panel 2 and surface panel 3.
Fig. 6 and Fig. 7 is the figure for representing to be preferred for the concrete example of the shearing device of the cut-out of transparent resin layer.Shown in Fig. 6
Concrete example 1 be the example that line 20 is set up in a pair of pulleys 10,11.The shearing device makes the one side of line 20 left and right directions in figure
Slide while push and shove the transparent resin layer 4 between image display panel 2 and surface panel 3, display device 1 is existed in this condition
The direction movement orthogonal with line 20.Thereby, it is possible to cut off transparent resin layer 4 to separate image display panel 2 and surface panel 3.
In addition, the concrete example 2 shown in Fig. 7 is formed as follows：It is multiple being configured in a manner of forming a pair of coasters
Between pulley 10~13 set up line 20, and then by absorb pulley 10,11 between line 20 relaxation extension spring 14,15 respectively with work
Link for the pulley 12,13 that coaster moves., will be saturating between image display panel 2 and surface panel 3 in the shearing device
Ming tree lipid layer 4 pushes and shoves line 20, display device 1 is moved in the direction orthogonal with line 20 in this condition, and thus, cut-out is transparent
Resin bed 4 separates image display panel 2 and surface panel 3.The relaxation of line 20 between pulley 10,11 is stretched spring 14,15
Resilient absorbent, the line 20 between pulley 10,11 is always the state of stretching, extension.
As line 20, it can be preferred to use the metal wire made by carbon steel（For example, piano wire）Deng.In addition, line 20 is thick
As long as the thin thickness detailed rules and regulations than the transparent resin layer 4 between image display panel 2 and surface panel 3 are not particularly limited, still, from
From the viewpoint of cuttability, preferably using 50 μm~100 μm of line.
When using such shearing device to cut off transparent resin layer 4, as described above, by using after to hardening of resin
The hardness for showing as shore E be multiplied by the transparent resin filler 5 that the value after adhesive strength is less than 400, so as to which line 20 is saturating
Movement becomes easy in ming tree lipid layer 4, and re-workability improves.The spent time is cut off in addition, can also shorten, production can be made
Pitch time（tact time）Improve.
After transparent resin layer 4 is cut off, wipes removing with solution using the removing containing organic solvent and shown in image
The hardening of resin thing of the remained on surface of panel 2 and surface panel 3.For example, using dripping or spray（spray）Method is in hardening of resin
On thing apply removing solution, at room temperature place 5 minutes or so, make hardening of resin thing dipping expansion, using by be impregnated with
The elastomer of the organic solvent identical solvent of the removing solution applied on hardening of resin thing（elastomer）Etc. composition
Wipe（wipe）Component wipes hardening of resin thing.
As the organic solvent contained in removing solution, such as can Shi limonenes（limonene）（C6H10, dissolving ginseng
Number：0.6）, toluene（C7H8, solubility parameter：8.8）.In these, it is excellent as organic solvent from the viewpoint of security is improved
Select Shi limonenes.In addition, from the viewpoint of wiping, volatility is improved, ethanol, isopropanol can also be added.
Eliminating transparent resin layer 4（Transparent resin filler 5）Afterwards, by, for example, microscopical cosmetic variation
Observation comes the wiping surface of check image display panel 2 and surface panel 3.On the residue of no hardening of resin thing and surface not
Occur in the case of going bad, return to step S1, repeat above-mentioned initial process.
Like this, it is 400 by using the value after adhesive strength is multiplied by the hardness for showing as shore E after hardening of resin
Following transparent resin filler 5, in the case of having the exception that foreign matter is mixed into etc. in transparent resin layer 4, it can make again
Tooling member is easily moved between image display panel 2 and surface panel 3.That is, to the hardening thing of transparent resin filler 5
The hardness for showing as shore E to be multiplied by the value after adhesive strength be less than 400, thereby, it is possible to easily and reliably peel off image
Display panel 2 and surface panel 3 are simultaneously recycled, and can improve re-workability.
The embodiment ＞ of ＜ 3.
Hereinafter, embodiment is enumerated, specifically describes the present invention.In this embodiment, to the screening characteristics of resin, reliability,
Re-workability etc. is evaluated.Further, the present invention is not limited by these embodiments.
［ resin 1 ］
Following material is mixed to make resin 1 using mixing machine：The maleic anhydride adducts of polyisoprene polymer
With（Methyl）The carboxylate of acrylic acid 2- hydroxy methacrylates（Trade name UC102,（Co., Ltd.）Kuraray system, molecular weight 12500）
40 mass parts,（Methyl）Acrylic acid dicyclopentenyl epoxide ethyl ester（Trade name FA512M, Hitachi's chemical conversion industry（Co., Ltd.）System）
35 mass parts, acrylic acid 2- hydroxy propyl esters（Trade name LIGHT ESTER HOP, common prosperity company chemistry（Co., Ltd.）System）3 matter
Measure part, acryloyl morpholine（Trade name ACMO,（Co., Ltd.）Emerging people's system）3 mass parts, benzyl acrylate（Trade name C160,
Osaka organic industry（Co., Ltd.）System）15 mass parts, terpenes hydrogenation resin（Trade name ClearonP-85, YASUHARA
Chemistry（Co., Ltd.）System）35 mass parts, butadiene polymers（Trade name Polyoil110, Japanese ZEON（Co., Ltd.）
System）120 mass parts, Photoepolymerizationinitiater initiater（Trade name SpeedCure TPO, Japanese SiberHegner（Co., Ltd.）System）
0.5 mass parts and Photoepolymerizationinitiater initiater（Trade name IRGACURE 184D, Ciba（Co., Ltd.）System）4 mass parts.
The cooperation of above-mentioned resin 1 is shown in table 1.
［ resin 2 ］
Following material is mixed to make resin 2 using mixing machine：The maleic anhydride adducts of polyisoprene polymer
With（Methyl）The carboxylate of acrylic acid 2- hydroxy methacrylates（Trade name UC102,（Co., Ltd.）Kuraray system, molecular weight 12500）
50 mass parts,（Methyl）Acrylic acid dicyclopentenyl epoxide ethyl ester（Trade name FA512M, Hitachi's chemical conversion industry（Co., Ltd.）System）
30 mass parts, acrylic acid 2- hydroxy propyl esters（Trade name LIGHT ESTER HOP, common prosperity company chemistry（Co., Ltd.）System）6 matter
Measure part, benzyl acrylate（Trade name C160, Osaka organic industry（Co., Ltd.）System）10 mass parts, terpenes hydrogenation resin
（Trade name ClearonP-85, YASUHARA chemistry（Co., Ltd.）System）30 mass parts, butadiene polymers（Trade name
Polyoil110, Japanese ZEON（Co., Ltd.）System）130 mass parts, Photoepolymerizationinitiater initiater（Trade name SpeedCure TPO,
Japanese SiberHegner（Co., Ltd.）System）3.5 mass parts and Photoepolymerizationinitiater initiater（Trade name IRGACURE 184D,
Ciba（Co., Ltd.）System）0.5 mass parts.The cooperation of above-mentioned resin 2 is shown in table 1.
［ resin 3 ］
Following material is mixed to make resin 3 using mixing machine：The maleic anhydride adducts of polyisoprene polymer
With（Methyl）The carboxylate of acrylic acid 2- hydroxy methacrylates（Trade name UC203,（Co., Ltd.）Kuraray system, molecular weight 25000）
100 mass parts,（Methyl）Acrylic acid dicyclopentenyl epoxide ethyl ester（Trade name FA512M, Hitachi's chemical conversion industry（Co., Ltd.）
System）30 mass parts, acrylic acid 2- hydroxy propyl esters（Trade name LIGHT ESTER HOP, common prosperity company chemistry（Co., Ltd.）System）
10 mass parts, terpenes hydrogenation resin（Trade name ClearonP-85, YASUHARA chemistry（Co., Ltd.）System）30 mass parts,
Butadiene polymers（Trade name Polyoil110, Japanese ZEON（Co., Ltd.）System）210 mass parts, Photoepolymerizationinitiater initiater（Business
Name of an article SpeedCure TPO, Japanese SiberHegner（Co., Ltd.）System）1.5 mass parts and Photoepolymerizationinitiater initiater（Business
Name of an article IRGACURE 184D, Ciba（Co., Ltd.）System）7 mass parts.The cooperation of above-mentioned resin 3 is shown in table 1.
［ resin 4 ］
Following material is mixed to make resin 4 using mixing machine：The maleic anhydride adducts of polyisoprene polymer
With（Methyl）The carboxylate of acrylic acid 2- hydroxy methacrylates（Trade name UC102,（Co., Ltd.）Kuraray system, molecular weight 12500）
55 mass parts,（Methyl）Acrylic acid dicyclopentenyl epoxide ethyl ester（Trade name FA512M, Hitachi's chemical conversion industry（Co., Ltd.）System）
33 mass parts, acrylic acid 2- hydroxy propyl esters（Trade name LIGHT ESTER HOP, common prosperity company chemistry（Co., Ltd.）System）7 matter
Measure part, benzyl acrylate（Trade name C160, Osaka organic industry（Co., Ltd.）System）5 mass parts, terpenes hydrogenation resin
（Trade name ClearonP-85, YASUHARA chemistry（Co., Ltd.）System）30 mass parts, butadiene polymers（Trade name
Polyoil110, Japanese ZEON（Co., Ltd.）System）130 mass parts, Photoepolymerizationinitiater initiater（Trade name SpeedCure TPO,
Japanese SiberHegner（Co., Ltd.）System）0.5 mass parts and Photoepolymerizationinitiater initiater（Trade name IRGACURE 184D,
Ciba（Co., Ltd.）System）4 mass parts.The cooperation of above-mentioned resin 4 is shown in table 1.
［ resin 5 ］
Following material is mixed to make resin 5 using mixing machine：The maleic anhydride adducts of polyisoprene polymer
With（Methyl）The carboxylate of acrylic acid 2- hydroxy methacrylates（Trade name UC102,（Co., Ltd.）Kuraray system, molecular weight 12500）
50 mass parts,（Methyl）Acrylic acid dicyclopentenyl epoxide ethyl ester（Trade name FA512M, Hitachi's chemical conversion industry（Co., Ltd.）System）
28 mass parts, acrylic acid 2- hydroxy propyl esters（Trade name LIGHT ESTER HOP, common prosperity company chemistry（Co., Ltd.）System）7 matter
Measure part, benzyl acrylate（Trade name C160, Osaka organic industry（Co., Ltd.）System）15 mass parts, terpenes hydrogenation resin
（Trade name ClearonP-85, YASUHARA chemistry（Co., Ltd.）System）56 mass parts, butadiene polymers（Trade name
Polyoil110, Japanese ZEON（Co., Ltd.）System）100 mass parts, Photoepolymerizationinitiater initiater（Trade name SpeedCure TPO,
Japanese SiberHegner（Co., Ltd.）System）0.5 mass parts and Photoepolymerizationinitiater initiater（Trade name IRGACURE 184D,
Ciba（Co., Ltd.）System）4 mass parts.The cooperation of above-mentioned resin 5 is shown in table 1.
［ resin 6 ］
Following material is mixed to make resin 6 using mixing machine：The maleic anhydride adducts of polyisoprene polymer
With（Methyl）The carboxylate of acrylic acid 2- hydroxy methacrylates（Trade name UC203,（Co., Ltd.）Kuraray system, molecular weight 25000）
70 mass parts,（Methyl）Acrylic acid dicyclopentenyl epoxide ethyl ester（Trade name FA512M, Hitachi's chemical conversion industry（Co., Ltd.）System）
30 mass parts, acrylic acid 2- hydroxy propyl esters（Trade name LIGHT ESTER HOP, common prosperity company chemistry（Co., Ltd.）System）10
Mass parts, terpenes hydrogenation resin（Trade name ClearonP-85, YASUHARA chemistry（Co., Ltd.）System）30 mass parts, fourth
Diene polymerization body（Trade name Polyoil110, Japanese ZEON（Co., Ltd.）System）140 mass parts, Photoepolymerizationinitiater initiater（Commodity
Name SpeedCure TPO, Japanese SiberHegner（Co., Ltd.）System）0.5 mass parts and Photoepolymerizationinitiater initiater（Commodity
Name IRGACURE 184D, Ciba（Co., Ltd.）System）4 mass parts.The cooperation of above-mentioned resin 6 is shown in table 1.
[table 1]
For the transparent resin filler after being adjusted like this（Resin 1~6）Carry out various measure.Show in table 2
Go out each measurement result.
[table 2]
［ viscosimetric analysis ］
Use E type viscosimeters（HAAK company system rheometers（rheometer）PK100）Determine at room temperature presclerotic
Ming tree fat filler（Resin 1~6）Viscosity.As a result, the viscosity of resin 1 is 800mPas, the viscosity of resin 2 is
1100mPas, the viscosity of resin 3 is 3800mPas, and the viscosity of resin 4 is 1200mPas, and the viscosity of resin 5 is
The viscosity of 1300mPas and resin 6 is 3500mPas.Here, the viscosity of resin 1,2,4,5 is in image display panel
Or the scope fully extended under the weight of surface panel, in addition, the viscosity of resin 3,6 is by pushing image display panel or table
Faceplate panels and the scope fully extended.I.e., it is known that resin 1~6 has superior screening characteristics.
［ hardening thing detecting refractive index ］
Use Abbe refractomecer（Sodium D-line（585nm）、25℃）Transparent resin layer after measure hardening（Resin 1~6）'s
Refractive index.As a result, the refractive index of resin 1~6 is all 1.52.
［ curing shrinkage rate measure ］
Use electronic hydrometer（MIRAGE company systems SD-120L）Determine the ratio of the resin after presclerotic resin and hardening
Weight, based on both difference in specific gravity, curing shrinkage rate is calculated by following formula.As a result, the hardening of resin 1,2,4~6 is received
Shrinkage is 1.8, and the curing shrinkage rate of resin 3 is 1.0.
Curing shrinkage rate（%）=（Resin proportion before resin proportion-hardening after hardening）Resin proportion × 100 after/hardening
It can be seen from the measurement result of the measurement result of hardening thing refractive index and curing shrinkage rate, on visuality, resin 1
~6 have superior reliability.
［ determining bonding strength ］
Dripped in the central portion of glass substrate diameter 5mm transparent resin filler（Resin 1~6）, to be padded via 0.1mm
Piece（spacer）The mode of acrylic resin substrate orthogonal from it loads, and its hardening is made test film using ultraviolet.
The acrylic resin substrate of the test film is fixed, on the other hand, using pressing fixture（Crosshead（cross head））Press glass
The both ends not contacted with acrylic resin substrate in glass substrate, are determined in acrylic resin substrate and glass base at room temperature
Stress required for before plate separation.It is 5mm/min to press speed, using obtained stress divided by unit area as adhesive strength
（Cohesiveness）.As a result, the adhesive strength of resin 1 is 28N/cm2, the adhesive strength of resin 2 is 20N/cm2, resin 3 it is viscous
It is 35N/cm to connect intensity2, the adhesive strength of resin 4 is 39N/cm2, the adhesive strength of resin 5 is 60N/cm2And resin 6 is viscous
It is 50N/cm to connect intensity2。
［ Determination of Hardness ］
Appropriate transparent resin filler is poured into special container（Resin 1~6）, make its hardening using ultraviolet.Will be hard
Resin after change（Sample）It is positioned over the E type hardness tester meters according to JIS K6253（ASKER company system ASKER durometers E
Type）, hardness is determined at room temperature after 15 seconds from being given as security pin contact.In addition, more than 5 points of the circumferential part of measure sample, is calculated average
Value.As a result, the hardness for showing as shore E of resin 1 is E4/15, the hardness of resin 2 is E8/15, and the hardness of resin 3 is
E7/15, the hardness of resin 4 is E8/15, and the hardness of resin 5 is E7/15 and the hardness of resin 6 is E10/15.
［ adhesive strength × hardness ］
By above-mentioned adhesive strength（Cohesiveness）It is multiplied with the hardness for showing as shore E, the parameter as re-workability.Its
As a result, resin 1 is 112, resin 2 is 160, and resin 3 is 245, and resin 4 is 312, and resin 5 is 420 and resin 6 is 500.
［ peel strength measure ］
Transparent resin filler is filled between the glass substrate and acrylic resin substrate of 15cm × 26cm sizes（Resin
1~6）It is thick to 0.1mm, its hardening is made test film using ultraviolet.Measure is peeled off using line（Cut-out）The experiment
The maximum of the intensity of line is applied to during the transparent resin layer of the 15cm width of piece.As a result, the maximum demand 35N/ of resin 1
15cm is peeled off, and the maximum demand 35N/15cm of resin 2 is peeled off, and the maximum demand 40N/15cm of resin 3 is peeled off, resin
4 maximum demand 44N/15cm are peeled off, and the maximum demand 55N/15cm of resin 5 is peeled off and the maximum demand 55N/ of resin 6
15cm is peeled off.
Understand to work as adhesive strength（Cohesiveness）Value after being multiplied with the hardness for showing as shore E becomes hour, peels off
Intensity also diminishes, and both have correlation.I.e., it is known that the value after adhesive strength is multiplied by according to the hardness to showing as shore E is
Less than 400 resin 1~4, peel strength also diminishes, it is possible to increase the re-workability after hardening of resin.
Claims (12)
1. a kind of display device, have between image display panel and surface panel fills out transparent resin using ultraviolet irradiation
The transparent resin layer filled after agent hardening, wherein,
The hardness for showing as shore E of the transparent resin layer is E4/15~E8/15, after being multiplied by adhesive strength to the hardness
It is worth for 400N/cm2Hereinafter, the hardness for showing as shore E be by the sample after transparent resin filler is hardened be positioned over according to
According to JIS K6253 E type hardness tester meters, obtained from being measured from being given as security pin contact after 15 seconds.
2. display device according to claim 1, wherein, the adhesive strength is 20~80N/cm2。
3. display device according to claim 2, wherein, the viscosity of the transparent resin filler for 500~
3000mPa·s。
4. display device according to claim 3, wherein, the curing shrinkage when hardening the transparent resin filler
Rate is less than 2.5%.
5. a kind of manufacture method of display device, wherein, have：
Filling work procedure, transparent resin filler is filled between image display panel and surface panel；
Hardening process, the transparent resin filler is hardened using ultraviolet irradiation, forms transparent resin layer；And
Removal step, in the case of having foreign matter mixed in the transparent resin layer, make reprocessing component in the surface panel
Moved between described image display panel, remove the transparent resin layer,
The hardness for showing as shore E of the transparent resin layer is E4/15~E8/15, after being multiplied by adhesive strength to the hardness
It is worth for 400N/cm2Hereinafter, the hardness for showing as shore E be by the sample after transparent resin filler is hardened be positioned over according to
According to JIS K6253 E type hardness tester meters, obtained from being measured from being given as security pin contact after 15 seconds.
6. the manufacture method of display device according to claim 5, wherein, the adhesive strength is 20~80N/cm2。
7. the manufacture method of display device according to claim 6, wherein, the viscosity of the transparent resin filler is
500~3000mPas.
8. the manufacture method of display device according to claim 7, wherein, when hardening the transparent resin filler
Curing shrinkage rate be less than 2.5%.
9. a kind of transparent resin filler being filled between image display panel and surface panel, wherein,
The hardness for showing as shore E of transparent resin filler after being hardened using ultraviolet irradiation is E4/15~E8/15,
It is 400N/cm that the value after adhesive strength is multiplied by the hardness2Hereinafter, the hardness for showing as shore E is by the way that transparent resin is filled out
The sample filled after agent hardening is positioned over the E type hardness tester meters according to JIS K6253, is measured and obtains after 15 seconds from being given as security pin contact
Arrive.
10. transparent resin filler according to claim 9, wherein, the adhesive strength is 20~80N/cm2。
11. transparent resin filler according to claim 10, wherein, the viscosity of the transparent resin filler is 500
~3000mPas.
12. transparent resin filler according to claim 11, wherein, when hardening the transparent resin filler
Curing shrinkage rate is less than 2.5%.
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| JP2004029672A (en) * | 2002-06-28 | 2004-01-29 | Dainippon Printing Co Ltd | Antiglare sheet |
| CN100378524C (en) * | 2004-10-10 | 2008-04-02 | 奇景光电股份有限公司 | Display module and sealing method thereof |
| KR101089434B1 (en) * | 2005-02-16 | 2011-12-07 | 닛폰고세이가가쿠고교 가부시키가이샤 | Adhesive for optical member and method for producing adhesive for optical member |
| JP2006299214A (en) * | 2005-04-20 | 2006-11-02 | Satoshi Nagura | Protective sheet |
| WO2007023932A1 (en) * | 2005-08-26 | 2007-03-01 | Kuraray Co., Ltd. | Thermoplastic elastomer composition and composite molded article manufactured from the same |
| CN101331529B (en) * | 2005-12-05 | 2011-03-30 | 精工电子有限公司 | Display and method for manufacturing display |
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| CN102163394B (en) * | 2006-07-14 | 2013-12-25 | 迪睿合电子材料有限公司 | Image display device, resin composition and resin cured layer |
| KR20160141876A (en) * | 2009-10-16 | 2016-12-09 | 데쿠세리아루즈 가부시키가이샤 | Display device, process for manufacturing same, and transparent resin filler |
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