CN107735831B - The manufacturing method of image display device - Google Patents
The manufacturing method of image display device Download PDFInfo
- Publication number
- CN107735831B CN107735831B CN201680033294.5A CN201680033294A CN107735831B CN 107735831 B CN107735831 B CN 107735831B CN 201680033294 A CN201680033294 A CN 201680033294A CN 107735831 B CN107735831 B CN 107735831B
- Authority
- CN
- China
- Prior art keywords
- photo
- transparent resin
- resin layer
- curable transparent
- image display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
Abstract
The present invention provides the manufacturing method for forming light-cured resin layer, the image display device that can prevent the image quality as caused by the incidence of exterior light from deteriorating with uniform thickness between image display panel and transparent substrate.The manufacturing method of the image display device has: the photo-curable transparent resin composition 4 of liquid being coated on release property sheet material 9, the process for being formed in photo-curable transparent resin layer 5 of the outer edge 5a with protrusion 10；Light irradiation is carried out, the first smooth irradiation process of the flowing of photo-curable transparent resin layer 5 is inhibited；Make photo-curable transparent resin layer 5 and the closely sealed process of transparent substrate 3；Light irradiation is carried out, the interim cured second smooth irradiation process of photo-curable transparent resin layer 5 is made；Release property sheet material 9 is removed from photo-curable transparent resin layer 5, photo-curable transparent resin layer 5 is attached to the attached process of image display panel 2；And light irradiation is carried out, make the third light irradiation process of 5 formal solidification of photo-curable transparent resin layer.
Description
Technical field
The present invention relates to a kind of methods for manufacturing image display device, by image display panels such as liquid crystal display panels and
The transparent substrate for being disposed in the translucency such as the transparent protective glass of the image display panel surface side passes through the transparent tree of photo-curable
Rouge layer is bonded, is laminated.
This application claims the Japanese patent application No. Japanese Patent Application 2015- to propose in Japan on June 22nd, 2015
Priority based on 124573, this application by referring to and be referenced to the application.
Background technique
The image display devices such as liquid crystal display panel used in the information terminals such as smart phone manufacture as follows: in liquid crystal
Between the transparent substrate for showing the translucency such as the image display panels such as panel, organic EL panel and transparent protective glass, it is solid that light is arranged
After the property changed transparent resin composition, ultraviolet light is irradiated to the composition and solidifies it and photo-curable transparent resin layer is made,
Thus image display panel is Nian Jie with transparent substrate, stacking (patent document 1).
As the method for photo-curable transparent resin composition is provided between image display panel and transparent substrate, use
Be coated with photo-curable transparent resin composition on the surface of transparent substrate, later by transparent substrate to be coated with photo-curable transparent
The face paste of resin combination invests the method on image display panel.Here, photo-curable transparent resin composition is coated on
When transparent substrate, it is necessary to which the whole face on the surface of transparent substrate is flatly coated with photo-curable transparent resin composition.This
It is because of if photo-curable transparent resin composition is not coated with flatly, in the subsequent patch to image display panel
Bubble is involved in when conjunction, after being furthermore bonded, image can skew.
As the method for the offer photo-curable transparent resin composition between image display panel and transparent substrate, example
Such as, there is the method that photo-curable transparent resin composition is coated on transparent substrate using dispenser.This method as shown in figure 5,
Prepare translucency covering member 20, in the surface 20a opposite with image display device of the translucency covering member 20, point of use
The photo-curable transparent resin composition 22 of liquid is coated into scheduled shape by glue machine 21.Alternatively, can also with as shown in fig. 6,
Using silk-screen printing, utilize scraper 27 by photo-curable transparent resin composition 22 across the silk-screen plates such as mesh version or stencil 26
It is printed on the surface 20a of translucency covering member 20, is coated into predetermined shape.
Then, as shown in fig. 7, making translucency covering member 20 from the table for being coated with photo-curable transparent resin composition 22
The face side 20a is bonded with image display panel 23.As a result, photo-curable transparent resin composition 22 image display panel 23 and thoroughly
It is extended between photosensitiveness covering member 20, filling to whole face.
But using the method for dispenser 21, there are following worries: being difficult to control and conforms to translucency covering member 20
Filling shape, the photo-curable transparent resin composition 22 of photo-curable transparent resin composition 22 after image display panel 23
Between image display panel 23 and translucency covering member 20 overflow, need clean etc., reduce productivity.In addition, also examining
The scheme for being pre-coated with and preventing the resin as separation levee overflowed is considered, but has generated working hour increase, shows the boundary with separation levee portion
The other problems such as line.
In addition, scraper can be involved in air when sliding, residual in photo-curable transparent resin layer in the case where using mesh version
Gap etc. is deposited, thus is not available in reality.In addition, in the case where using stencil, photo-curable transparent resin composition 22
It can enter between translucency covering member 20 and metal stencil, not be available the resin of low viscosity, without thixotropic tree
Rouge.
For it is such using dispenser, silk-screen printing method for, as in image display panel and transparent substrate
Between provide photo-curable transparent resin composition method, also have and applied photo-curable transparent resin composition using coating head
The method for being distributed in transparent substrate.This method is as shown in figure 8, in the opposite with image display panel 23 of translucency covering member 20
Surface 20a, from the front end discharge photo-curable transparent resin composition 22 of the nozzle of coating head 24, thus as shown in Fig. 9 (A),
Translucency covering member 20 whole face according to scheduled thickness formed quadrilateral shape photo-curable transparent resin layer 25.
Then, the photo-curable transparent resin as shown in Fig. 9 (B), to the surface 20a for being formed in translucency covering member 20
Layer 25 irradiates ultraviolet light and solidifies it temporarily.This is because by turning photo-curable transparent resin composition 22 from liquid
Become the state not flowed significantly, will not trickle turning upside down, makes operational raising.
Then, as shown in Fig. 9 (C), by translucency covering member 20 from its 25 side of photo-curable transparent resin layer and image
Display panel 23 is bonded, and is irradiated by ultraviolet light, so that 25 formal solidification of photo-curable transparent resin layer.
Existing technical literature
Patent document
Patent document 1: International Publication 2010/027041
Summary of the invention
Problems to be solved by the invention
Here, the photo-curable transparent resin composition 22 of liquid is coated on the substrate surfaces such as translucency covering member 20
In the case where, as shown in Figure 10, the outer edge of photo-curable transparent resin layer 25 soaks extension outward, with image display panel
When 23 fitting, the outer edge thickness of photo-curable transparent resin layer 25 is insufficient, sometimes in the display area of image display panel
Occur not to be filled up completely by photo-curable transparent resin composition 22 between image display panel 23 and translucency covering member 20
And it is formed with the region in gap.Also, since exterior light enters display from the outer edge of the photo-curable transparent resin layer 25
There is the worry for deteriorating image quality in region.
In addition, as shown in figure 11, it is however generally that the transparent substrates such as translucency covering member 20 with image display panel 23
The peripheral part on opposite surface is equipped with light shield layer 30 by decorating printing etc. to improve brightness, the contrast of display image.Pass through
The light shield layer 30 is set, thus in the case where forming difference of height between interarea portion 31 and light shield layer 30, the transparent tree of photo-curable
Rouge layer 25 is formed with the protrusion 32 of the top protuberance relative to interarea portion 31 on the top of the light shield layer 30.If it is solid to be formed in light
The protrusion 32 of the property changed transparent resin layer 25 is high, then, may when being bonded translucency covering member 20 with image display panel 23
It can be mixed into air between translucency covering member 20 and image display panel 23, deteriorate image quality, but the protrusion 32
High-precision control is difficult.
Further, the photo-curable transparent resin composition 22 of liquid is coated on the transparent base such as translucency covering member 20
In the case where plate, as shown in figure 12, if transparent substrate is bent, photo-curable transparent resin composition 22 can be accumulated in recessed
Photo-curable transparent resin layer 25 can not be formed as uniform thickness by portion.
Therefore, the object of the present invention is to provide can be between image display panel and transparent substrate with uniform thick
Degree formed light-cured resin layer, the deterioration for preventing the image quality as caused by the incidence of exterior light image display device system
Make method.
The method used for solving the problem
In order to solve the above problems, the manufacturing method of image display device of the present invention has: the light of liquid is consolidated
The property changed transparent resin composition is coated on release property sheet material, and being formed in outer edge has the protrusion swelled relative to interarea portion
The painting process of photo-curable transparent resin layer；Light irradiation is carried out, the of the flowing of above-mentioned photo-curable transparent resin layer is inhibited
One smooth irradiation process；Make the surface of above-mentioned photo-curable transparent resin layer and the closely sealed process that transparent substrate is closely sealed；Carry out illumination
It penetrates, above-mentioned photo-curable transparent resin layer is made to carry out interim cured second smooth irradiation process；By above-mentioned release property sheet material from upper
The removing of photo-curable transparent resin layer is stated, above-mentioned photo-curable transparent resin layer is attached to the attaching work of image display panel
Sequence；And light irradiation is carried out, make the third light irradiation process of above-mentioned photo-curable transparent resin layer formal solidification.
Invention effect
According to the present invention, due to making the even surface of photo-curable transparent resin layer contacted with the surface of release property sheet material
For to the attaching face of image display panel, thus can non-involvement bubble and easily attach, in addition, outer edge will not be because of light
The wetting of curability transparent resin composition extends and generates gap.Therefore, the image display device manufactured by this process can be prevented
Only image quality deteriorates due to incidence of external light to the gap formed between image display panel and transparent substrate.
Detailed description of the invention
[Fig. 1] Fig. 1 is the sectional view for showing image display device.
[Fig. 2] Fig. 2 is the sectional view for showing manufacturing process of the present invention, and (A) is shown photo-curable transparent resin
The process that composition is coated on release property sheet material and irradiating ultraviolet light, (B), which is shown, makes photo-curable transparent resin layer and transparent base
The closely sealed process of plate, (C) show to photo-curable transparent resin layer irradiating ultraviolet light, make its interim cured process, and (D) is shown
The process that release property sheet material is removed from photo-curable transparent resin layer, (E), which is shown, is laminated in photo-curable transparent resin layer
Image display panel and irradiating ultraviolet light are to make the process of its formal solidification.
[Fig. 3] Fig. 3 is to show that photo-curable transparent resin composition is coated on release property piece with dispenser using resin
The perspective view of the process of material.
[Fig. 4] Fig. 4 is to show the concave part for making photo-curable transparent resin composition be filled in the formation of release property sheet material
The sectional view of state.
[Fig. 5] Fig. 5 is to show to use dispenser by the transparent tree of the photo-curable of liquid on the surface of translucency covering member
Oil/fat composition is coated into the perspective view of the process of scheduled shape.
[Fig. 6] Fig. 6 is to show that photo-curable transparent resin composition is printed in translucency covering structure using silk-screen printing
The side view of the process on the surface of part.
[Fig. 7] Fig. 7 is shown translucency covering member from the surface side for being coated with photo-curable transparent resin composition
The perspective view for the process being bonded with image display panel.
[Fig. 8] Fig. 8 is shown by covering from coating head discharge photo-curable transparent resin composition in translucency
The surface of component forms the perspective view of the process of photo-curable transparent resin layer.
[Fig. 9] Fig. 9 (A) is the sectional view for showing the translucency covering member for being formed with photo-curable transparent resin layer, Fig. 9
It (B) is the sectional view for showing the process to photo-curable transparent resin layer irradiating ultraviolet light, Fig. 9 (C) is to show to cover translucency
The lid component fits in the sectional view of the state of image display panel from its photo-curable transparent resin layer side.
[Figure 10] Figure 10 is to show the outer edge of photo-curable transparent resin layer to soak extension outward, in picture display face
The state that the region in gap is formed between image display panel and translucency covering member is produced in the display area of plate
Sectional view.
[Figure 11] Figure 11 be show be formed on the top of the light shield layer of photo-curable transparent resin layer it is upper than interarea portion
The sectional view of the state of the protrusion of portion's protuberance.
It is solid that [Figure 12] Figure 12 is that the recess portion for showing in curved transparent substrate stockpiles photo-curable transparent resin composition, light
The thickness of the property changed transparent resin layer becomes the sectional view of non-uniform state.
Specific embodiment
Hereinafter, the manufacturing method for the image display device being applicable in for the present invention, specificallys while referring to attached drawing
It is bright.It being explained, the present invention is not limited to the following embodiments and the accompanying drawings, without departing from the spirit and scope of the invention,
Various changes ought to be able to carry out.In addition, attached drawing is schematically to scheme, ratio of each size etc. sometimes with reality not
Together.Specific size etc. should refer to following illustrate to be judged.In addition, attached drawing obviously includes that mutual size is closed between each other
The different part of system, ratio.
[image display device]
The image display device 1 that manufactures using the present invention is as shown in Figure 1, image display panel 2 and as translucency
The transparent substrate 3 of covering member is by being formed by the transparent tree of photo-curable by the photo-curable transparent resin composition 4 of liquid
Rouge layer 5 and be stacked.
As image display panel 2, liquid crystal display panel, organic EL display panel, plasma can be enumerated and show face
Plate, touch panel etc..Here, touch panel is meant, by display element as liquid crystal display panel and touch gasket that
The image that the location input device of sample is composed shows, input panel.
As transparent substrate 3, if having it can be seen that the translucency as being formed in the image of image display member i.e.
Can, glass, acrylic resin, polyethylene terephthalate, polyethylene naphthalate, polycarbonate can be enumerated
Equal board-like materials, flaky material.For these materials, it is possible to implement single or double hard coating, antireflection process etc..It is transparent
The physical property such as thickness, the elasticity of substrate 3 can be suitable for decision according to purpose is used.
Transparent substrate 3 is formed with the light shield layer formed along peripheral part on the surface 3a being laminated with image display panel 2
6.Light shield layer 6 is set to improve contrast of image etc., is that the coating for being coloured to black etc. is passed through screen printing
Brush method etc. is coated and makes it dry, solidifies and obtain.As the thickness of light shield layer 6, usually 5~100 μm.
[photo-curable transparent resin composition]
As the photo-curable transparent resin composition 4 for the surface 3a for being coated on the transparent substrate 3, as described later, by
In temporarily being solidified and made its formal solidification by irradiation ultraviolet light, therefore it is suitble to transparent using the photo-curable of liquid
Resin combination.As shown in Fig. 2 (A), the photo-curable transparent resin composition 4 of liquid is by being coated on aftermentioned release property piece
The smooth surface 9a of material 9 and surface 9a formed photo-curable transparent resin layer 5.Photo-curable transparent resin layer 5 has
Outer edge 5a and interarea portion 5b, in outer edge, 5a is formed with the protrusion 10 than interarea portion 5b protuberance.Here, liquid refers to,
The viscosity of 0.01~100Pas (25 DEG C) is shown in cone and plate viscometer.
Such photo-curable transparent resin composition 4 may be preferably exemplified containing acrylic ester oligomer ingredient (at
Point (I)), the combination of acrylate monomer ingredient (ingredient (II)) and Photoepolymerizationinitiater initiater (ingredient (III)) as principal component
Object.
The acrylic ester oligomer of ingredient (I) is used as the basis material of photo-curable transparent resin composition 4.As excellent
The concrete example of choosing can enumerate (methyl) acrylate oligomer modified by polyisoprene, polyurethane, polybutadiene etc.
(for example, polyisoprene system (methyl) acrylate oligomer, polyurethane series (methyl) acrylate oligomer, polybutadiene
It is (methyl) acrylate oligomer etc.).It is explained, in this specification, term as " (methyl) acrylate "
Including acrylate and methacrylate.
As the preferred concrete example of polyisoprene system (methyl) acrylate oligomer, polyisoprene can be enumerated
Carboxylate (UC102 (the polystyrene conversion molecular weight of polymeric maleic anhydride adduct and 2-hydroxyethyl methacrylate
17000), (strain) Kuraray；UC203 (polystyrene conversion molecular weight 35000), (strain) Kuraray；(molecular weight is about by UC-1
25000), (strain) Kuraray) etc..
In addition, the preferred concrete example as polyurethane series (methyl) acrylate oligomer, can enumerate aliphatic ammonia
Urethane acrylate oligomer (EBECRYL230 (molecular weight 5000), Daicel-Allnex (strain)；UA-1,LIGHT
CHEMICAL industry (strain)) etc..
As polybutadiene system (methyl) acrylate oligomer, well known substance can be used.
It is adequately anti-in order to be assigned to photo-curable transparent resin composition 4 in the manufacturing process of image display device
The acrylate monomer ingredient of answering property and coating etc., ingredient (II) is used as reactive diluent.As in this way
Acrylate monomer, methacrylic acid 2- hydroxy propyl ester, benzyl acrylate, methacrylic acid dicyclopentenyl oxygen can be enumerated
Ethyl ester etc..
As the Photoepolymerizationinitiater initiater of ingredient (III), well known optical free radical polymerization initiator can be used, for example, can
To enumerate 1- hydroxy-cyciohexyl phenyl ketone (IRGACURE184, BASF are Japanese (strain)), 2- hydroxyl -1- { 4- [4- (2- hydroxyl -
2- methyl-propanoyl) benzyl] phenyl }-2- methyl-1-propane-1- ketone (IRGACURE127, BASF are Japanese (strain)), hexichol
Ketone, acetophenone etc..
For such Photoepolymerizationinitiater initiater, relative to ingredient (I) acrylic ester oligomer and ingredient (II) propylene
Total 100 mass parts of acid esters system monomer, if very few, solidification becomes insufficient when ultraviolet light irradiates, if excessively, have because
The degassing that cracking causes increases and there is the undesirable tendency that foams, therefore preferably 0.1~5 mass parts, more preferably 0.2~3
Mass parts.
Photo-curable transparent resin composition 4 can further contain ingredient (IV) plasticiser component.The increasing of ingredient (IV)
Modeling agent ingredient is to assign resiliency to curing resin layer and make the cure shrinkage of photo-curable transparent resin composition 4
Rate is reduced and is used, and under ultraviolet irradiation not with the acrylic ester oligomer ingredient of ingredient (I) and ingredient (II)
Acrylate monomer ingredient reacts.Such plasticiser component contains solid tackifiers (1) and liquid oil component
(2)。
As solid tackifiers (1), the terpenic series such as terpene resin, terpene phenol resin, hydrogenated terpene resin can be enumerated
Resin；The rosin resins such as natural rosin, newtrex, rosin ester, hydrogenated rosin；Terpenic series hydrogenated resin.In addition it is also possible to make
Oligomer non-reacted made of low molecular weight polycaprolactone combination is carried out in advance with by acrylate monomer above-mentioned, specifically,
The copolymer of butyl acrylate and the own ester of acrylic acid 2- and acrylic acid, cyclohexyl acrylate and methacrylic acid can be enumerated
Copolymer etc..
As liquid oil component (2), polybutadiene system oil or polyisoprene system oil etc. can be contained.
In addition, in order to adjust molecular weight, photo-curable transparent resin composition 4 can contain chain-transferring agent.For example, can be with
Enumerate 2 mercapto ethanol, lauryl mercaptan, glycidyl mercaptan, thioacetic acid, 2-ethylhexyl mercaptoacetate, bis- mercapto of 2,3-
Base -1- propyl alcohol, α-methylstyrene dimer etc..
In addition, photo-curable transparent resin composition 4 can further change containing bondings such as silane coupling agents as needed
The common additives such as kind agent, antioxidant.
Photo-curable transparent resin composition 4 can contain plasticiser component within the scope of the effect of the invention
(ingredient (IV)).Therefore, in photo-curable transparent resin composition 4, the acrylic ester oligomer ingredient and ingredient of ingredient (I)
(II) total content of acrylate monomer ingredient is preferably 25~85 mass %, but plasticiser component of ingredient (IV)
Content is the range of 0~65 mass %.
[manufacturing process of image display device 1]
Next, being illustrated to the manufacturing process of image display device 1.The manufacturing process of image display device 1 has:
The photo-curable transparent resin composition of liquid is coated on release property sheet material, outer edge is formed in and has and swelled than interarea portion
The painting process of the photo-curable transparent resin layer of protrusion；Light irradiation is carried out, above-mentioned photo-curable transparent resin layer is inhibited
First smooth irradiation process of flowing；Make the surface of above-mentioned photo-curable transparent resin layer and the closely sealed process that transparent substrate is closely sealed；
Light irradiation is carried out, above-mentioned photo-curable transparent resin layer is made to carry out interim cured second smooth irradiation process；By above-mentioned release property
Piece is removed from above-mentioned photo-curable transparent resin layer, and above-mentioned photo-curable transparent resin layer is attached to the patch of image display panel
Attached process；And light irradiation is carried out, make the third light irradiation process of above-mentioned photo-curable transparent resin layer formal solidification.
[painting process]
As shown in Fig. 2 (A), painting process is that the photo-curable transparent resin composition 4 of liquid is coated on release property piece
Material 9, the process for being formed in the photo-curable transparent resin layer 5 that outer edge 5a has than the interarea portion 5b protrusion 10 swelled.
Release property sheet material 9 by surface coating liquid state photo-curable transparent resin composition 4 and make its solidification to
Photo-curable transparent resin layer 5 is supported, is preferably formed by the flexible material such as silicon rubber.Release property sheet material 9 is in photocuring
Property transparent resin layer 5 and after transparent substrate 3 is closely sealed and interim solidification, removed from photo-curable transparent resin layer 5.
Release property sheet material 9 is smoothly formed the surface 9a being coated with by the photo-curable transparent resin composition 4 of liquid.Cause
This, is formed in the face contacted with surface 9a of the photo-curable transparent resin layer 5 on the smooth surface 9a also being smoothed.And
And as described later, by the way that the even surface of photo-curable transparent resin layer 5 to be bonded with image display panel 2, so as to
Photo-curable transparent resin layer 5 is formed with uniform thickness between image display panel 2 and transparent substrate 3.
About release property sheet material 9, such as shown in figure 3, photo-curable is coated with to surface 9a with dispenser 13 using resin
Transparent resin composition 4.Resin dispenser 13 has the accumulating part for stockpiling photo-curable transparent resin composition 4 and will deposit
The photo-curable transparent resin composition 4 in product portion spues in the discharge opening of the surface 9a of release property sheet material 9.In addition, resin point
The discharge opening of glue machine 13 has the scheduled width being consistent with the width for the photo-curable transparent resin layer 5 for turning to invest transparent substrate 3
Degree, and in the entire width discharge photo-curable transparent resin composition 4 of discharge opening.
Also, resin is with 13 one side of dispenser from the one end of the length direction of the smooth surface 9a of release property sheet material 9
It moves to the other end, the photo-curable transparent resin composition 4 of liquid is squeezed out using pump (not shown) on one side, is spued in de-
The surface 9a of mould sheet material 9, to be coated into scheduled thickness.It is formed greatly in the smooth surface 9a of release property sheet material 9 as a result,
The rectangular-shaped photo-curable transparent resin layer 5 of body.
[protrusion]
The photo-curable transparent resin layer 5 has outer edge 5a and interarea portion 5b, is combined according to photo-curable transparent resin
Object 4 forms the protrusion 10 swelled than interarea portion 5b along outer edge 5a to the wetability of the surface 9a of release property sheet material 9.Light
Curability transparent resin layer 5 is by forming protrusion 10 along outer edge 5a, so as to inhibit photo-curable transparent resin group
It closes object 4 and soaks extension outward, prevent the photo-curable transparent resin composition 4 between release property sheet material 9 and transparent substrate 3 from existing
It is not fully filled on thickness direction and generates gap.In addition, even if protrusion 10 is pressed on transparent substrate 3, photo-curable
In the case that transparent resin composition 4 soaks extension outward, can also it be configured between release property sheet material 9 and transparent substrate 3
The photo-curable transparent resin composition 4 of protrusion 10 is filled, and uniform photo-curable transparent resin in a thickness direction is formed
Layer 5.
It is explained, protrusion 10 can be by controlling photo-curable transparent resin group using resin dispenser 13
Discharge-amount, movement speed of object 4 etc. is closed to be formed.For example, resin dispenser 13 can be by making the one end of moving direction
And the discharge-amount of the other end increases compared to the discharge-amount between both ends, or makes the one end and the other end of moving direction
Movement speed in portion reduces compared to the movement speed between both ends, thus in the moving direction of resin dispenser 13
Both ends form protrusion 10.In addition, resin dispenser 13 can also by make discharge opening both ends discharge-amount compared to
Discharge-amount between the both ends of discharge opening increases, so that the moving direction along resin dispenser 13 forms protrusion 10.This
It outside, can function under the surface 9a to release property sheet material 9 is at a distance from discharge opening respectively when studying these discharge-amounts and movement speed
Husband.Alternatively, can be by surface 9a in release property sheet material 9 along the dispensing area of photo-curable transparent resin composition 4
Outer rim forms protrusion, to form protrusion 10 according to the protrusion.
It is explained, the coating method of photo-curable transparent resin composition 4 is not limited to using resin point
The method of glue machine 13 can be suitable for using coating method well known to other other than silk-screen printing.The case where using silk-screen printing
Under, the adaptation of the release property sheet material 9 and stencil that are made of the flexible material such as silicon rubber improves, therefore can also disappear
The problems such as entering the gap of the two except resin.
[concave part]
It is explained, as shown in figure 4, release property sheet material 9 can be arranged in surface 9a by photo-curable transparent resin
Composition 4 remains the concave part 9b of predetermined shape.By the way that photo-curable transparent resin composition 4 is coated on concave part 9b,
So as to inhibit photo-curable transparent resin composition 4 to soak extension outward, in thickness direction between transparent substrate 3
It is upper to form uniform photo-curable transparent resin layer 5.It is explained, the shape of concave part 9b can arbitrarily be set.
[the first smooth irradiation process]
After the painting process to the photo-curable transparent resin composition 4 of release property sheet material 9, as shown in Fig. 2 (A),
Is irradiated by ultraviolet light and promotes curing reaction, inhibit the first smooth irradiation process flowed for photo-curable transparent resin layer 5.The
In one smooth irradiation process, it is solidified into and is able to suppress the wetting extension of the photo-curable transparent resin composition 4 of liquid, maintains light solid
The degree of the shape of the property changed transparent resin layer 5.Therefore, the first smooth irradiation process is preferably in coating photo-curable transparent resin combination
It is carried out immediately after object 4.
Ultraviolet source well known to LED, mercury vapor lamp, metal halide lamp, xenon lamp etc. can be used in ultraviolet irradiation.This
Outside, irradiation condition changes according to the type of photo-curable transparent resin composition 4, light source, such as can be set to LED:
365nm、500mW/cm2、1000mJ/cm2。
The curing degree of photo-curable transparent resin layer 5 at this time is preferably 60% or more 97% hereinafter, more preferably 70%
Above 95% or less.If curing degree is more than 97%, curing reaction is excessively carried out, it may occur however that closely sealed with transparent substrate 3
Property reduce, air is involved in.In addition, if curing degree is lower than 60%, then shape is unable to maintain that, possibly can not be with transparent substrate 3
It is closely sealed.
It is explained, preferably irradiates ultraviolet light from 5 side of photo-curable transparent resin layer, but release property sheet material 9 is by having
In the case where thering is the material of translucency to be formed, it can also be irradiated from the back side of release property sheet material 9.In addition, saturating with regard to photo-curable
For bright resin layer 5, in the surface side for being exposed to air, solidification is obstructed, and curing reaction carries out slowly, with release property sheet material 9
Surface 9a contact a surface side, curing reaction be easy carry out.
[closely sealed process]
Then, as shown in Fig. 2 (B), make closely sealed close of the surface of photo-curable transparent resin layer 5 and transparent substrate 3
Close process.As a result, the surface of photo-curable transparent resin layer 5 be formed by protrusion 10 and pressing on transparent substrate 3 by
It shrivels, to prevent from generating the profit because of photo-curable transparent resin composition 4 in the outer edge 5a of photo-curable transparent resin layer 5
The gap of wet extension and formation.
In addition, by forming release property sheet material 9 by the flexible material such as silicon rubber, thus by making roll squeezer 11 exist
The Dorsal glide etc. of release property sheet material 9 is rolled, and 5 turns of photo-curable transparent resin layer can be made to invest transparent substrate 3.By
This, can shrivel the protrusion 10 of photo-curable transparent resin layer 5, and will be between the air of the contact surface with transparent substrate 3
It squeezes out, while keeping photo-curable transparent resin layer 5 closely sealed.
When closely sealed with transparent substrate 3, even if transparent substrate 3 generates difference of height due to being bonded to flexible base board etc., have
Flexible release property sheet material 9 can also absorb the difference of height, keep photo-curable transparent resin layer 5 and transparent substrate 3 closely sealed.Cause
The freedom degree of the configuration of the components such as flexible base board can be improved for transparent substrate 3 in this.
Further, since being rolled using roll squeezer 11 Deng to release property sheet material 9 and keeping photo-curable transparent resin layer 5 close
It closes, the height regardless of protrusion 10, protrusion 10 is all flattened and is formed as uniform thickness, therefore does not need high-precision
The height in ground control projection portion 10.
Further, due to being rolled using roll squeezer 11 Deng to flexible release property sheet material 9, even if transparent
Substrate 3 bends, and can also follow the fluctuating on the surface of transparent substrate 3 and keep photo-curable transparent resin layer 5 closely sealed, can
Photo-curable transparent resin layer 5 is formed with uniform thickness on the surface of transparent substrate 3.
[the second smooth irradiation process]
Then, it as shown in Fig. 2 (C), carries out irradiating ultraviolet light to photo-curable transparent resin layer 5, keeps it interim cured
Second smooth irradiation process.In second smooth irradiation process, by promoting the curing reaction of photo-curable transparent resin layer 5, to make
It is temporarily cured to from release property sheet material 9 the strippable degree (for example, 80~90% curing degree) while maintaining shape.
Photo-curable transparent resin layer 5 also carries out curing reaction on the surface contacted with transparent substrate 3 as a result, securely with transparent base
Plate 3 is closely sealed.
[attached process]
Then, as shown in Fig. 2 (D), Fig. 2 (E), release property sheet material 9 is removed from photo-curable transparent resin layer 5,
The attached process for being bonded photo-curable transparent resin layer 5 with image display panel 2.Photo-curable transparent resin layer 5 is due to logical
It crosses the second smooth irradiation process and is temporarily solidified, therefore to be attached at the state of transparent substrate 3 remaining, only 9 quilt of release property sheet material
Removing.Photo-curable transparent resin layer 5 shows the even surface 5c once contacted with the surface 9a of release property sheet material 9 as a result,.
The even surface 5c of the photo-curable transparent resin layer 5 is attached at image display panel 2.To image display panel 2
Attaching well known compression bonding apparatus can be used, for example, pressurizeed and carried out at 10 DEG C~80 DEG C.At this point, photo-curable is transparent
Resin layer 5 is since the even surface 5c that will once contact with the surface 9a of release property sheet material 9 is as the attaching to image display panel 2
Face, therefore it will not be involved in bubble, it can easily be done attaching.In addition, photo-curable transparent resin layer 5 is due to by temporarily solid
Change, therefore gap will not be generated due to photo-curable transparent resin composition 4 is soaked and spread in outer edge 5a.Therefore, pass through
The image display device 1 of this process manufacture can prevent due to incidence of external light to image display panel 2 and transparent substrate 3 it
Between the gap that is formed and deteriorate image quality.
It is explained, uses liquid crystal display panel as when image display panel 2, it generally can be in transparent base
Liquid crystal display part that plate 3 is attached configures polarizer, therefore is supported in the photo-curable transparent resin layer 5 of transparent substrate 3 and sets
It is laminated in the polarizer of image display panel 2.The image display device 1 manufactured by this process is since even surface 5c to be attached at
Polarizer, therefore even if by polarizer thermally-induced photo-curable transparent resin layer 5 be heat-shrinked in the case where, be also able to suppress sky
The generation of gap, the reduction for preventing the image quality as caused by the incidence of exterior light.
[third light irradiation process]
Then, carry out to the photo-curable transparent resin layer 5 being clamped between image display panel 2 and transparent substrate 3 into
The irradiation of row light, the third light irradiation process for making its formal solidification.Image display panel 2 and transparent substrate 3 are consolidated across light as a result,
The property changed transparent resin layer 5 is laminated, and image display device 1 is obtained.Photo-curable transparent resin in third light irradiation process
The curing degree of layer 5 is preferably 90% or more, and more preferably 95% or more.
It is explained, as long as the level of the translucency of photo-curable transparent resin layer 5 is it can be seen that be formed in figure
As the translucency as the image of display panel 2.
Symbol description
1 image display device, 2 image display panels, 3 transparent substrates, the surface 3a, 4 photo-curable transparent resin compositions,
5 photo-curable transparent resin layers, the outer edge 5a, 5b interarea portion, 5c even surface, 9 release property sheet materials, the surface 9a, 9b concave part, 10
Protrusion, 13 resin dispensers.
Claims (10)
1. a kind of manufacturing method of image display device, has:
The photo-curable transparent resin composition of liquid is coated on release property sheet material, is formed in outer edge and has by painting process
The photo-curable transparent resin layer of protrusion relative to interarea portion protuberance；
First smooth irradiation process, the flowing for carrying out light irradiation, inhibiting the photo-curable transparent resin layer；
Closely sealed process keeps the surface of the photo-curable transparent resin layer and transparent substrate closely sealed；
Second smooth irradiation process carries out light irradiation, solidifies the photo-curable transparent resin layer temporarily；
The release property sheet material is removed from the photo-curable transparent resin layer, the photo-curable is transparent by attached process
Resin layer is attached at image display panel；And
Third light irradiation process carries out light irradiation, makes the photo-curable transparent resin layer formal solidification.
2. the manufacturing method of image display device according to claim 1, in the described first smooth irradiation process, from described
Photo-curable transparent resin layer side carries out light irradiation.
3. the manufacturing method of image display device according to claim 1, in the described first smooth irradiation process, the light
The curing degree of curability transparent resin layer is 60% or more 97% or less.
4. the manufacturing method of image display device described in any one of claim 1 to 3 irradiates work in the third light
In sequence, there are polarizer, the polarizer and the photo-curable transparent resin layer in the surface configuration of described image display panel
Stacking.
5. the manufacturing method of image display device described in any one of claim 1 to 3, the release property sheet material is equipped with
The photo-curable transparent resin composition is remained to the concave part of predetermined shape.
6. the manufacturing method of image display device described in any one of claim 1 to 3, the release property sheet material has
It is flexible.
7. the manufacturing method of image display device according to claim 6, in the closely sealed process, by that described will take off
Mould sheet material is rolled to the transparent substrate, so that the photo-curable transparent resin layer be made to turn to invest the transparent base
Plate.
8. the manufacturing method of image display device described in any one of claim 1 to 3, the transparent substrate is glass
Substrate.
9. the manufacturing method of image display device described in any one of claim 1 to 3 is taken off using coating head to described
Mould sheet material is coated with the photo-curable transparent resin composition.
10. the manufacturing method of image display device described in any one of claim 1 to 3, by silk-screen printing to institute
It states release property sheet material and is coated with the photo-curable transparent resin composition.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015124573A JP6479589B2 (en) | 2015-06-22 | 2015-06-22 | Manufacturing method of image display device |
| JP2015-124573 | 2015-06-22 | ||
| PCT/JP2016/067621 WO2016208452A1 (en) | 2015-06-22 | 2016-06-14 | Image-display-device manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107735831A CN107735831A (en) | 2018-02-23 |
| CN107735831B true CN107735831B (en) | 2019-10-25 |
Family
ID=57585248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680033294.5A Active CN107735831B (en) | 2015-06-22 | 2016-06-14 | The manufacturing method of image display device |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP6479589B2 (en) |
| KR (1) | KR102043610B1 (en) |
| CN (1) | CN107735831B (en) |
| TW (1) | TWI700529B (en) |
| WO (1) | WO2016208452A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6991137B2 (en) * | 2017-01-17 | 2022-01-12 | 積水化学工業株式会社 | Filled joints, filled joints with protective sheets, laminates, optical devices and protective panels for optical devices |
| KR102345432B1 (en) * | 2017-02-07 | 2021-12-30 | 데쿠세리아루즈 가부시키가이샤 | Method for manufacturing an image display device |
| JP6370967B1 (en) * | 2017-06-28 | 2018-08-08 | デクセリアルズ株式会社 | Method for manufacturing image display device, photocurable resin composition, and light transmissive cured resin layer |
| JP6878225B2 (en) * | 2017-09-15 | 2021-05-26 | デクセリアルズ株式会社 | Manufacturing method of transparent panel, manufacturing method of optical device |
| WO2019191355A1 (en) * | 2018-03-28 | 2019-10-03 | Henkel IP & Holding GmbH | Photocurable compositions and method of forming topographical features on a membrane surface using photocurable compositions |
| JP6538252B1 (en) * | 2018-09-19 | 2019-07-03 | デクセリアルズ株式会社 | Method of manufacturing image display device |
| US20230118965A1 (en) | 2020-03-03 | 2023-04-20 | Dexerials Corporation | Method for manufacturing image display device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070036595A (en) * | 2005-09-29 | 2007-04-03 | 에스케이씨 주식회사 | Light diffusion sheet for backlight unit |
| CN101650447A (en) * | 2008-08-13 | 2010-02-17 | 索尼株式会社 | Optical film and manufacturing method therefor, antiglare film, optical layer-attached polarizer, and dispaly apparatus |
| WO2011148990A1 (en) * | 2010-05-26 | 2011-12-01 | 旭硝子株式会社 | Transparent surface material having adhesive layer, display device, and manufacturing method for same |
| JP2012078519A (en) * | 2010-09-30 | 2012-04-19 | Shibaura Mechatronics Corp | Vacuum lamination device and vacuum lamination method |
| CN103042803A (en) * | 2011-10-12 | 2013-04-17 | 旭硝子株式会社 | Method for producing electronic device |
| JP2014134789A (en) * | 2012-12-14 | 2014-07-24 | Dexerials Corp | Method for manufacturing image display device, and resin dispenser |
| KR20140145933A (en) * | 2012-01-25 | 2014-12-24 | 데쿠세리아루즈 가부시키가이샤 | Method of manufacturing image display device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4307510B1 (en) * | 2007-12-27 | 2009-08-05 | 日東電工株式会社 | Optical display device manufacturing system and method |
| JP5195175B2 (en) | 2008-08-29 | 2013-05-08 | 東京エレクトロン株式会社 | Film forming apparatus, film forming method, and storage medium |
-
2015
- 2015-06-22 JP JP2015124573A patent/JP6479589B2/en active Active
-
2016
- 2016-06-14 TW TW105118496A patent/TWI700529B/en active
- 2016-06-14 WO PCT/JP2016/067621 patent/WO2016208452A1/en active Application Filing
- 2016-06-14 CN CN201680033294.5A patent/CN107735831B/en active Active
- 2016-06-14 KR KR1020177029344A patent/KR102043610B1/en active IP Right Grant
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070036595A (en) * | 2005-09-29 | 2007-04-03 | 에스케이씨 주식회사 | Light diffusion sheet for backlight unit |
| CN101650447A (en) * | 2008-08-13 | 2010-02-17 | 索尼株式会社 | Optical film and manufacturing method therefor, antiglare film, optical layer-attached polarizer, and dispaly apparatus |
| WO2011148990A1 (en) * | 2010-05-26 | 2011-12-01 | 旭硝子株式会社 | Transparent surface material having adhesive layer, display device, and manufacturing method for same |
| JP2012078519A (en) * | 2010-09-30 | 2012-04-19 | Shibaura Mechatronics Corp | Vacuum lamination device and vacuum lamination method |
| CN103042803A (en) * | 2011-10-12 | 2013-04-17 | 旭硝子株式会社 | Method for producing electronic device |
| KR20140145933A (en) * | 2012-01-25 | 2014-12-24 | 데쿠세리아루즈 가부시키가이샤 | Method of manufacturing image display device |
| JP2014134789A (en) * | 2012-12-14 | 2014-07-24 | Dexerials Corp | Method for manufacturing image display device, and resin dispenser |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102043610B1 (en) | 2019-11-12 |
| CN107735831A (en) | 2018-02-23 |
| JP6479589B2 (en) | 2019-03-06 |
| KR20170131494A (en) | 2017-11-29 |
| WO2016208452A1 (en) | 2016-12-29 |
| TW201730640A (en) | 2017-09-01 |
| JP2017009780A (en) | 2017-01-12 |
| TWI700529B (en) | 2020-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107735831B (en) | The manufacturing method of image display device | |
| CN105807469B (en) | The manufacturing method of image display device | |
| TWI609724B (en) | Image display device manufacturing method, resin dispenser | |
| KR101448418B1 (en) | Photocurable resin composition and method of manufacturing image display device using the same | |
| CN106459695A (en) | Transparent adhesive sheet | |
| TWI738661B (en) | Photocurable resin composition and manufacturing method of image display device | |
| US11124676B2 (en) | Method for manufacturing optical member | |
| CN106062109A (en) | Ultraviolet-curable adhesive composition for touch panel, optical member production method using same, cured product, and touch panel | |
| CN104763931B (en) | Backlight module and liquid crystal display | |
| CN104272370B (en) | The manufacture method of image display device | |
| TW201906970A (en) | Method for producing image display device, photocurable resin composition, and light-transmitting hardened resin layer | |
| JP6904161B2 (en) | Manufacturing method of image display device | |
| CN109843562A (en) | The manufacturing method of laminated body | |
| CN101702402B (en) | Glue overflow-preventing device and baseplate-laminating method using same | |
| CN102148170B (en) | Substrate adhesion method | |
| CN110382194A (en) | The manufacturing method and Optical devices of Optical devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |