CN102632682A - Attaching method of optical substrate - Google Patents
Attaching method of optical substrate Download PDFInfo
- Publication number
- CN102632682A CN102632682A CN2011100365026A CN201110036502A CN102632682A CN 102632682 A CN102632682 A CN 102632682A CN 2011100365026 A CN2011100365026 A CN 2011100365026A CN 201110036502 A CN201110036502 A CN 201110036502A CN 102632682 A CN102632682 A CN 102632682A
- Authority
- CN
- China
- Prior art keywords
- optical element
- glue
- solid
- filler particles
- optical
- 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.)
- Pending
Links
Abstract
The invention relates to a novel attaching method of optical substrates; according to the method, optical substrates with poor flatness are subject to flatness maintenance treatment in the process, and thus the optical substrates with poor flatness are attached in a flatter manner, which reduces or even eliminates the bending-warping problem for optical components. In addition, the attaching method of optical substrates of the invention further makes use of optical adhesive compositions with specific components, defines a certain height by using the solid-state filler particles in the optical adhesive compositions, and thus provides the adhesive layer with a uniform thickness.
Description
Technical field
The present invention relates to a kind of applying method, particularly a kind of method of utilizing optics to bind glue composition applying optical element.
Background technology
Optical module is one of indispensable part for many electronic installations, and the good corrupt direct quality that influences the electronic installation display quality of its quality.Generally speaking, in the manufacture process of optical module, often relate to optical element is combined or the technology of fit (bonding), for example glass baseplate and glass baseplate are fitted or the technology of glass baseplate and the applying of non-glass (like polymer) base material.
In prior art, the attaching process of optical element mainly can be divided into two types.In first kind technology; Prior under the vacuum environment optics adhesive plaster (like the product Optically Clear Adhesive (OCA) of 3M company) being labelled to an optical element; Afterwards another optical element is covered on the optics adhesive plaster, and utilizes two optical elements of impressed pressure pressing and intervenient optics adhesive plaster.
In second type of technology; The one side of one optical element is coated with liquid UV glue (like the product SRV-1321 ultraviolet cured adhesive of Sony Chemical company); Mechanically optical element is turned over turnback; Make the glue stream that hangs down, and the one side that optical element scribbles glue moved to keep after the suitable distance of another optical element fixingly, shine UV light simultaneously and make the UV adhesive curing.
Although aforementioned two kinds of main flows that the practice is present optical element attaching process, so it exists problems to demand urgently overcoming.For example; If the optical element flatness that desire is fitted is not good; For example be pretreated optical elements such as process physical property/chemical scratch resistance processing, intensive treatment, cutting; Then utilize the fit normal stress of optical module of gained of already known processes residual and the optical element warpage issues is arranged, and the optical element warping phenomenon of thinner thickness is even more serious.Therefore, be necessary to propose a solution to foregoing problems.
Summary of the invention
Shortcoming thoughts on prior art; The invention provides a kind of optical element applying method of novelty; It keeps processing through in technology, the not good optical element of flatness being imposed flatness; Optical element so that flatness is not good is fitted with comparatively smooth mode, and then reduces or even eliminate the prying problem in the optical module.In addition, optical element attaching process of the present invention more utilizes the optics of specific composition to bind glue composition, and the solid-state filler particles through wherein defines certain altitude, makes glue-line have homogeneous thickness.
One of the object of the invention is to provide a kind of applying method of optical element, mainly may further comprise the steps: one first optical element is provided; Upper surface in this first optical element provides an optics to bind glue composition, and this optics binds glue composition and comprises liquid light curable glue and solid-state filler particles; One second optical element is covered to this optics bonding glue composition; And keep under the smooth situation in this first optical element, make this liquid state light curable glue partly solidified at least.
A purpose more of the present invention is to provide a kind of applying method of optical element, comprising: provide one first optical element to attract on the tool; Provide an optics to bind glue composition in this first optical element away from the surface of this attraction tool, this optics binds glue composition and comprises liquid light curable glue and solid-state filler particles; Provide one second optical element to this optics to bind on the glue composition; This first optical element of vacuum attraction is to keep its flatness; And make this liquid state light curable glue partly solidified at least.
The specific embodiment
For proving absolutely the object of the invention, characteristic and effect, make under the present invention person skilled can understand content of the present invention and also can implement according to this, pass through following concrete embodiment at present, to the present invention be elaborated as after.
Definition
In this paper, term " comprises ", " comprising ", " having " or its any variation all are intended to contain comprising of nonexcludability.For example, the method, step, article or the device that comprise a series of key elements must not only limit to these key elements, but also can comprise this method, step, article or device is clear lists or other intrinsic key element.
In addition, " or " refer to containing property " or " and nonexcludability " or ".For example, condition " A or B " all belongs to satisfied in following three kinds of situations: A is that true (or existence) and B are that pseudo-(or not existing) and B are very (or existence) for true (or existence) and A, B for pseudo-(or not existing), A.
In this paper, " one " is in order to describe key element of the present invention and component.This usage only is for convenience, and the present invention is provided general notion simultaneously, and this kind describing mode should comprise one or at least one, only and if clearly can know and do not contain plural number, otherwise odd number also should comprise plural number.
If quantity, concentration or other numerical value or parameter are represented with scope, preferred range or a series of upper limit and lower limit; Then its should be understood to be specific exposure by the arbitrary upper limit or the lower limit of preferred values and any scope or all scopes that preferred values constitutes to any scope, no matter whether these scopes have respectively disclose.In addition, if in this paper when mentioning the scope of numerical value, except as otherwise noted, otherwise this scope should comprise all integers and mark in its end points and the scope.
In the present invention, under the prerequisite that can reach goal of the invention, numerical value should be understood to the accuracy with this numeral number of significant digit.For instance, numeral 40 should be understood to and contains from 35.0 to 44.9 scope, and numeral 40.0 then should be understood to and contains from 39.50 to 40.49 scope.
In addition, if in method of the present invention, utilize specific code name to distinguish each step, like (1), (2), (3) etc., then should understand these code names is not the order that implicit each step is carried out.In other words; In the effect of attainable cost invention or do not violate under the prerequisite of the common knowledge in present technique field; Method of the present invention should be not limited to carry out according to each step institute listed sequence; Each step also possibly carried out or carry out simultaneously with the different order of listed person, and method of the present invention also be not limited to treat before step just carry out the back step after being finished, but possibly in preceding step implementation, promptly carry out the back step.
Preparation of compositions
In the present invention, an embodiment of optical cement composition mainly comprises following two kinds of compositions: light curable glue and solid-state filler particles.
Wherein, light curable glue can use can buy on the market at present various to see through the glue that illumination is cured, and can include but not limited to the optical grade glue such as silicone, acrylic compounds, methacrylic, epoxies.For example, in the present invention, a kind of spendable light curable glue is the liquid UV glue of SonyChemical company, and its product type is SRV-1321.Those skilled in the art can know because characteristic, composition and the occupation mode of light curable glue belong to, so will repeat no more among this paper.
In the present invention, generally speaking adoptable solid-state filler particles kind is not specially limited, as long as the optics that formed optical cement composition can meet final products requires/specification.For example, solid-state filler particles can be an inorganic material, and for example glass also can be organic material, for example organic polymer.
The size of solid-state filler particles mainly with two optical elements between clearance height relevant, and this clearance height can be between 30 microns to 500 microns, as between 50 microns to 300 microns or between 100 microns to 200 microns, but not as limit.
In a preferred embodiment, solid-state filler particles is made up of polymer, for example PC (Merlon), PMMA (polymethyl methacrylate) or PET (PETG) etc.Because the solid particles of these materials belongs to and can buy on the market, so repeat no more at this.
Desire prepares optical cement composition of the present invention; Can earlier solid-state filler particles be processed; For example carry out Precision Machining according to clearance height, the optical property desiring to reach; Meet the accurate particle size of specified sieve target to obtain, afterwards and the particle that particle diameter is roughly the same add to stir in the light curable glue and get final product.
In view of the above; The present invention is through adding solid-state particle in the glue of liquid state; Can make the glue of unit volume have certain height and structural strength; Pass through solid-state particle simultaneously as filler, can between two optical elements, define uniform clearance height, and then overcome the uneven problem in the gap that glue produced that simple use only contains liquid parts.
In a preferred embodiment, selecting for use of solid-state filler particles is the optical characteristics requirement that can meet final products, and for example, solid-state filler particles can be selected from meeting specific light transmittance or refractive index person.For avoiding solid-state filler particles excessively to stop penetrating of light, solid-state filler particles can select to have high transmission rate person, for example light transmittance is greater than about 95%, and preferable light transmittance is greater than about 98%.In addition; The excessive optical characteristics to final products of optical index difference of light curable glue and solid-state filler particles causes harmful effect in the optical cement composition in order to avoid, and the preferable cording of solid-state filler particles has the refractive index identical or close with light curable glue.For instance; If the refractive index of light curable glue is 1.4 (air is 1); Then preferable select for use refractive index between 1.3 to 1.5 material as solid-state filler particles; Or select for use refractive index to be used as solid-state filler particles between 95% to 105% material of the refractive index of light curable glue, the better refractive index of selecting for use is used as solid-state filler particles between 98% to 102% material of the refractive index of light curable glue.
In another preferred embodiment of the present invention, the material that optional usefulness has particular stiffness is used as solid-state filler particles.For instance, the material that can select for use hardness to be less than or equal to the optical element of desire applying is used as solid-state filler particles, thus, then need not to worry solid-state filler particles meeting scratch optical element in the applying process, and can increase the heavy industry property of technology.If the optical element that two desires are fitted is glass, then can select for use meet particular optical require (like aforesaid refractive index, light transmittance etc.) simultaneously hardness be less than or equal to glass again material as solid-state filler particles.Undoubtedly, the material of solid-state filler particles can be same or similar with the material of optical element, also can be inequality or dissimilar.
In some embodiment, the optical cement composition still can comprise other composition except can comprising light curable glue and solid-state filler particles, as long as specific examples of such components can not cause serious harmful effect to the bonding characteristic or the optical characteristics of optical cement composition.
The applying step
Applying step of the present invention is mainly in order to two optical elements of fitting (to call " first optical element " and " second optical element " in the following text).Generally speaking, the selection of optical element kind is not limited especially, and comprises (like light transmittance, the refractive index etc.) person that has particular optical properties, as can be eyeglass, film or the like.In addition, the material of two optical elements can be identical, also can be inequality.In a preferred embodiment, the optical element of being selected for use can be any one in PC, PMMA and the glass.
When fitting step, first step provides one first optical element.Generally speaking, in embodiments of the invention, first optical element refers to through preliminary treatment such as physical property/chemical scratch resistance processing, intensive treatment, cutting, and structure flatness person no all roses.
In first step, preferable this first optical element is placed one on a tool (or anchor clamps), as have the person of mechanism that can keep this optical element flatness.For example, tool can be the attraction tool that has slotted hole or circular hole and connect vacuum generator or vacuum pumps, and the flat surface that the mode that it can be through vacuum attraction is attracted to tool with first optical element is kept the flatness of first optical element.Undoubtedly, other embodiment of the present invention also can adopt those skilled in the art to know other means that can be used for keeping the optical element flatness.
Then, in the upper surface of first optical element or away from the surface of tool one optical cement composition in order to bind is provided, its composition mainly comprises light curable glue and solid-state filler particles as previously mentioned.Generally speaking cloth glue or the method for application of binding glue composition are not specially limited, and its various known glues capable of using use means and reach, and for example on the surface of first optical element, use aforesaid optics according to the fish-bone form and bind glue composition.
In optics bind glue composition use finish after, be second optical element to be covered to optics bind on the glue composition.At this moment, contain solid state component,, and evenly support second optical element, it is unlikelyly contacted with first optical element so can between two optical elements, define the certain clearance height because optics binds in the glue composition.
Afterwards; Can keep in this first optical element makes this liquid state light curable glue partly solidified at least under the smooth situation; Wherein, the means that flatness is kept can be to utilize the slotted hole of tool or circular hole to attract first optical element, make on its smooth surface that is attached at tool.Because it is smooth that the present invention keeps first optical element, can not obtain the preferable optical module of flatness so more be not prone to the phenomenon of warpage in the optical module of gained after solidifying when curing schedule carries out.
In addition; In preferred embodiment; The partly solidified at least preferable finger pre-cure step here; For example bind the temporary combination of glue composition, and the confession user checks the state of optical element earlier after precuring and finely tune or choose defective products, and only carry out follow-up long-time curing schedule to meeting standard person with the formation optical element with UV light short time (like the several seconds) illumination optical.
By on can know; Principal character of the present invention has two at least: one of which is through adding the solid-state filler particles of some in light curable glue; Use a certain amount of optical cement composition on can be when fitting prior to a slice optical element; And utilize solid-state filler particles wherein to define certain altitude, and another sheet optical element is covered to the optical cement composition with uniform clearance height, the uniform optical module of bondline thickness can be obtained in view of the above; Compared to the technology of utilizing the optics adhesive plaster; Technology provided by the present invention does not relate to the use of optics adhesive plaster; Event can reduce or overcome the residual or stress-retained problem of bubble fully, and compared to the technology of only utilizing liquid UV glue, optical cement composition of the present invention solid-state filler particles capable of using defines the clearance height between optical element; Minimizing is for the dependence of fixed mechanism, and can promote the uniformity in gap and the production capacity and the efficient of technology.Its two when curing schedule carries out optical element flatness is not good or that have a stress-retained problem keep smoothly, make the optical module that solidifies the back gained problem of warpage more can not occur; In other words, through technology provided by the present invention, can be for the problem of deficient purchase (being the defectiveness of initial optical element own), utilize the particularity of technology and make finished product have acceptable planarization.
In view of the above, the present invention describes with preferred embodiment hereinbefore, and right this area has common knowledge the knowledgeable and it should be understood that this embodiment only is used to describe the present invention, and should not be read as restriction scope of the present invention.It should be noted that equivalent with this embodiment such as variation and displacement all should be regarded as being covered by in the category of the present invention.Therefore, protection scope of the present invention is when being as the criterion with what claims defined.
Claims (10)
1. the applying method of an optical element is characterized in that, comprising:
(1) one first optical element is provided;
(2) upper surface in this first optical element provides an optics to bind glue composition, and this optics binds glue composition and comprises liquid light curable glue and solid-state filler particles;
(3) one second optical element is covered to this optics bonding glue composition; And
(4) keep under the smooth situation in this first optical element, make this liquid state light curable glue partly solidified at least.
2. applying method as claimed in claim 1 is characterized in that, this solid-state filler particles comprises polymer.
3. applying method as claimed in claim 2 is characterized in that the hardness of this polymer is less than or equal to these optical elements.
4. applying method as claimed in claim 1 is characterized in that the light transmittance of this solid-state filler particles thing is more than or equal to 95%.
5. applying method as claimed in claim 1 is characterized in that, step (4) utilizes the vacuum attraction mode to keep the flatness of this first optical element.
6. the applying method of an optical element comprises:
(1) provide one first optical element to attract on the tool;
(2) provide an optics to bind glue composition in this first optical element away from the surface of this attraction tool, this optics binds glue composition and comprises liquid light curable glue and solid-state filler particles;
(3) provide one second optical element to this optics to bind on the glue composition;
(4) this first optical element of vacuum attraction is to keep its flatness; And
(5) make this liquid state light curable glue partly solidified at least.
7. applying method as claimed in claim 6 is characterized in that this solid-state filler particles comprises at least one of PC, PMMA and PET.
8. applying method as claimed in claim 6 is characterized in that the light transmittance of this solid-state filler particles is more than or equal to 95%.
9. applying method as claimed in claim 6 is characterized in that, the refractive index of this solid-state filler particles is between 95% to 105% of the refractive index of this liquid state light curable glue.
10. applying method as claimed in claim 6 is characterized in that, this liquid state light curable glue comprises liquid UV glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100365026A CN102632682A (en) | 2011-02-11 | 2011-02-11 | Attaching method of optical substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100365026A CN102632682A (en) | 2011-02-11 | 2011-02-11 | Attaching method of optical substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102632682A true CN102632682A (en) | 2012-08-15 |
Family
ID=46617347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100365026A Pending CN102632682A (en) | 2011-02-11 | 2011-02-11 | Attaching method of optical substrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102632682A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070209756A1 (en) * | 2006-03-10 | 2007-09-13 | 3M Innovative Properties Company | Stacked optical film package format |
| US20080153377A1 (en) * | 2006-12-25 | 2008-06-26 | Setsuo Kobayashi | Manufacturing method of display device |
| CN101398555A (en) * | 2007-09-26 | 2009-04-01 | 株式会社日立显示器 | Display device |
| JP2010210850A (en) * | 2009-03-10 | 2010-09-24 | Seiko Epson Corp | Method of manufacturing optical article |
-
2011
- 2011-02-11 CN CN2011100365026A patent/CN102632682A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070209756A1 (en) * | 2006-03-10 | 2007-09-13 | 3M Innovative Properties Company | Stacked optical film package format |
| US20080153377A1 (en) * | 2006-12-25 | 2008-06-26 | Setsuo Kobayashi | Manufacturing method of display device |
| CN101398555A (en) * | 2007-09-26 | 2009-04-01 | 株式会社日立显示器 | Display device |
| JP2010210850A (en) * | 2009-03-10 | 2010-09-24 | Seiko Epson Corp | Method of manufacturing optical article |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108196327B (en) | Scratch-resistant optical diffusion film and preparation method thereof | |
| CN1141327C (en) | Composition and structures made therefrom | |
| TWI690577B (en) | Photocationically polymerizable composition, bonding method, electronic device, and producing method thereof, as well as displaying device, and producing method thereof | |
| CN103249793B (en) | There is the double-sided adhesive tape of the doing over again property of improvement | |
| CN101354489A (en) | Display device, manufacturing method of display device, and manufacturing apparatus for the same | |
| CN103555210A (en) | Liquid optical adhesive and preparation method thereof | |
| TW200801149A (en) | Binder composition for polyester film and optical film using the same | |
| CN101571607A (en) | Reflective membrane for license plate and method for manufacturing same and license plate | |
| CN102501560A (en) | Binding method for capacitive touch screen | |
| US11708510B2 (en) | Optical adhesive | |
| EP3350631A1 (en) | Low sparkle matte coats and methods of making | |
| CN109471212B (en) | High-brightness optical diffusion film | |
| KR102088684B1 (en) | Hard coating composition for scattering protection film, scattering protection film and method for preparing the same | |
| CN102632682A (en) | Attaching method of optical substrate | |
| CN102634297A (en) | Optical adhesive composition and attaching method of optical substrate | |
| KR101542643B1 (en) | Transparent plastic film comprising optically clear adhesive layer and method for producing it | |
| CN106985480A (en) | It is a kind of for optical material of full attaching process and its preparation method and application | |
| CN104749668A (en) | Reflective film and method for manufacturing reflective film | |
| TW200931072A (en) | Integrated optical film | |
| KR101218148B1 (en) | Optical polyester film with easily controllable refraction ratio | |
| JP2014065172A (en) | Acrylic resin with hard coat film | |
| JP2016138181A (en) | Overprint varnish | |
| CN106680914A (en) | Composite brightness enhancement film and manufacturing method thereof | |
| KR101621316B1 (en) | Polymer substrate having primer layer having with improved adhesion and optical substrate using the same | |
| KR20140146717A (en) | Optical polyester film with primer layer having high refractive ratio |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120815 |