CN104777707B - A kind of adhering method of the combined and spliced glass screen of DLP - Google Patents
A kind of adhering method of the combined and spliced glass screen of DLP Download PDFInfo
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- CN104777707B CN104777707B CN201510106651.3A CN201510106651A CN104777707B CN 104777707 B CN104777707 B CN 104777707B CN 201510106651 A CN201510106651 A CN 201510106651A CN 104777707 B CN104777707 B CN 104777707B
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Joining Of Glass To Other Materials (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
The invention discloses the adhering method of the combined and spliced glass screen of a kind of DLP, comprise the following steps: 1) uniformly coat one layer of silane coupling agent on four limits of glass screen；2) applying glue of high intensity UV glue.The adhering method of the combined and spliced glass screen of DLP disclosed by the invention, uses high intensity UV glue to realize being adhesively fixed of glass screen and PC sheet, reaches the bonding purpose of glass screen.Adhesive strength between high intensity UV glue and ultrathin transparent PC sheet is up to 2.0 2.6KG(4mm heavy sheet glass limits, 90 degree of peeling forces), while ensureing adhesive strength, with ultrathin transparent PC sheet with the use of, make through glass screen that the inventive method is bonding is follow-up be spliced into DLP giant-screen after, the light transmittance of glass screen thickness direction reaches more than 95%, greatly improves physics and the optical visual effect of large-screen splicing seam, and that accomplishes truly is seamless spliced.The inventive method applied range, can be applicable to various sizes be 50 80 inches, thickness be the combined and spliced glass screen of DLP bonding of 3 4mm.
Description
Technical field
The present invention relates to DLP rear-projection mosaic screen and make field, be specifically related to the bonding of the combined and spliced glass screen of a kind of DLP
Method.
Background technology
The screen of DLP rear-projection splicing system mainly has resin screen and glass screen two kinds, bigger in variation of ambient temperature
Time, resin screen, due to reason of expanding with heat and contract with cold, can cause screen plane degree to change greatly, and hooking makes each imaging on screen
Point is inconsistent because of optical path length change, causes imaging picture to distort.And glass screen would not produce this kind of phenomenon, therefore, glass
Glass screen is the main flow screen of DLP rear-projection splicing system.
Above two screen all uses marginal adhesion technology, on monolithic screen four limit only only having 4 millimeters thick, passes through glue
The transparent PC sheet of screen and 0.175 millimeters thick is bonded together, then by polylith screen splicing together by water, it is desirable to glue-line is thick
Degree wants uniformity, requires that under premise, bondline thickness gets over Bao Yuehao reaching adhesive strength, to ensure that screen splicing seam is thin and equal
Even unanimously.Glue owing to using at present is opaque, just observes on position to two pieces of screen splicing lines when people stand in
During image, because of splicing gap almost nil, at this time observe seamless image splicing really, but when people to the left or to
The right side stride mobile after, when again observing this splicing line, due to thickness and the reason of opaque glue of screen, it is seen that be one
Light black line, the most so-called " optics black line ", affect physics and the optical visual effect of image.
Look for a kind of transparent glue to substitute currently used glue, make resin screen or glass screen the most viscous with PC sheet
It is connected together, is the common recognition in giant-screen manufacturing already, although occurred that indivedual clear glass glue substitutes acroleic acid hot melt
Solidification glue, but the bonding first-selected glue of now widely used giant-screen is still acroleic acid hot melt solidification glue.With propylene acid heat
Melt cure glue is compared, although other transparent glue has greater advantage on light transmittance, but adhesive strength is solid with acroleic acid hot melt
Changing glue substantially not in an order of magnitude, following table is the existing conventional UV glue 3M UV adhesive of LC1113 (model be), propylene
The melt cure glue of acid heat and the performance comparison of clear glass glue:
Due to reason of expanding with heat and contract with cold, temperature rising can make the resin screen in glass screen (include the Fei Nie that resin is made
That lens and resin imaging screen) expand and to surrounding and front and back heave, as glass screen marginal adhesion force intensity is not enough, can produce
The hidden danger that raw glass comes off.
For many years, domestic each main large-screen splicing manufacturer has carried out bigger input to this, has carried out testing many times,
Final basic assert that UV glue is optimal succedaneum, but eventually because of in adhesive strength gap too big and could not have breakthrough, each master
Want company's only short time employing UV glue on provisional small-sized demonstration Mosaic screen, engineering project cannot use at all.
In addition to the selection of glue, crucial too for the joining quality of technique for sticking glass screen combined and spliced to DLP, but existing
Technique for sticking be difficult to meet requirement, the optic splice effect of its giant-screen is undesirable.
Summary of the invention
The technical problem to be solved is, for the deficiencies in the prior art, it is provided that a kind of combined and spliced glass of DLP
The adhering method of screen, between guarantee glass screen while adhesive strength, makes the light transmittance of glass screen limit thickness direction reach
To more than 95%, greatly improving physics and the optical visual effect of large-screen splicing seam, that accomplishes truly is seamless spliced.
The present invention solves the technical scheme that above-mentioned technical problem used: the combined and spliced glass screen of a kind of DLP viscous
Connect method, comprise the following steps:
1) four limits in glass screen uniformly coat one layer of silane coupling agent, and described silane coupling agent is that Guangzhou Ai Lite company produces
The oil-water separating agent that model is F7701；
2) temperature be 23-25 DEG C, constant humidity be less than 50%, air pollutants granularity is the construction field of million grades
Ground, in the four uniform applying glues in limit of the glass screen being coated with described silane coupling agent, glue used is that Guangzhou Ai Lite company produces
The high intensity UV glue that model is T3422B, the glue that after applying glue, tetragon in glass screen becomes thickness to be 0.25 ± 0.02mm
Layer, then by the smooth pressure that is attached on described glue-line and uniformly exerts a force of ultrathin transparent PC sheet that thickness is 0.115-0.135mm
Flat, then the four limit 8-10s by the glass screen described in UV lamp positioning irradiation, make described high intensity UV glue primary solidification, then
Unnecessary cull is removed, afterwards with four limit 300-of the glass screen described in described UV lamp positioning irradiation with alcohol washes
330s, makes described high intensity UV glue be fully cured, i.e. completes the combined and spliced glass screen of DLP bonding with PC sheet.
The present invention uses high intensity UV glue to realize being adhesively fixed of glass screen and PC sheet, reaches the bonding mesh of glass screen
's.This high intensity UV glue can have good adhesive strength with glass, can have well with the ultrathin transparent PC sheet as base material again
Adhesive strength, and this high intensity UV glue is the optical grade UV glue that light transmittance reaches more than 99%, while ensureing adhesive strength,
With ultrathin transparent PC sheet with the use of, make through glass screen that the inventive method is bonding is follow-up be spliced into DLP giant-screen after, glass
The light transmittance in screen thickness direction reaches more than 95%, greatly improves physics and the optical visual effect of large-screen splicing seam, does
Seamless spliced to truly.
Glass is a kind of hydrophilic substance, and when air humidity is bigger, glass water content increases, and hydrone can penetrate into UV glue-line
In, make the adhesive strength of UV glue reduce, the present invention uniformly coats one layer of silane coupling agent on four limits of glass screen, with completely cut off moisture content from
Glass enters UV layer, it is ensured that the adhesive strength of UV glue.
For giant-screen is bonding, the bonding total length of its glass edge reaches 3-5.4m, it is desirable to the glue-line formed after applying glue
Thickness uniformity.If bondline thickness difference is excessive, not only can affect the splicing gap between glass screen, and UV can be made gluing
Connect intensity uneven, affect adhesive effect, therefore, the bondline thickness formed after applying glue controls 0.25 by the present invention ±
0.02mm。
In addition to bondline thickness, twice UV lamp positioning irradiation time, i.e. primary solidification time of UV glue-line and being fully cured
Assurance and the control of time are the most important.If Primary Location irradiation time is shorter, UV glue-line can not primary solidification, location easily pine
Dynamic, will result in bondline thickness inconsistent；If Primary Location irradiation time is oversize, UV glue-line can solidify substantially, it may be difficult to goes
Except cull.Equally, the time that is fully cured also must strictly control, and the time that the is fully cured impact on adhesive strength not in place is relatively
Big: if the time is oversize, UV glue-line meeting embrittlement, if the shortest, UV glue will not be fully cured.
The removal of UV glue cull, the most first irradiates by UV lamp Primary Location, removes unnecessary UV glue, more solid with UV lamp
Change, but the more difficult assurance of Primary Location irradiation time, too morning time, also do not have primary solidification, location easily to loosen, bondline thickness can be made not
Unanimously, Primary Location irradiation time is oversize, and UV gum base originally have cured, and cannot remove cull.The time that is fully cured also must be tight
Lattice control, if oversize, UV glue-line meeting embrittlement, if the shortest, UV glue is not fully cured, and is fully cured irradiation time not in place right
Adhesive strength impact is the biggest.Have employed two kinds of methods: one is installing intervalometer on UV lamp, accurately controls for solving this problem
UV light irradiation time.Two is by lot of experiments, determines optimal positioning irradiation, is fully cured irradiation time.
Step 2) in, use transparent smooth mould that the ultrathin transparent PC sheet being attached on described glue-line is uniformly exerted a force
Flatten.Transparent smooth mould may insure that linearity and the uniformity of adhesive strength of UV glue-line applying glue, it is ensured that UV glue-line is thick
The uniformity of degree, it is to avoid produce splicing gap during the splicing of follow-up glass screen；When UV lamp positioning irradiation, utilize this transparent putting down
The light transmission of reshaping die, it is ensured that ultraviolet light is radiated at UV glue-line through transparent mould from front, it is ensured that UV glue bonding by force
Degree；Additionally, the applying glue situation of UV glue can be observed easily through transparent smooth mould, it is simple to applying glue personnel repair leakage in time
The applying glue defect such as glue, bubble.
Step 2) in, the wavelength of the ultraviolet light that described UV lamp uses is 365nm, and intensity of illumination is 15-20mW/cm2。
Step 2) in, realize the essence to the described UV lamp positioning irradiation time by installing intervalometer on described UV lamp
Really control.After intervalometer installed by UV lamp, it is accurately controlled the UV lamp positioning irradiation time, easy to operate.
The size of described glass screen is 50-80 inch, and thickness is 3-4mm.
Compared with prior art, it is an advantage of the current invention that: the combined and spliced glass screen of DLP disclosed by the invention bonding
Method, uses high intensity UV glue to realize being adhesively fixed of glass screen and PC sheet, reaches the bonding purpose of glass screen.This high intensity
UV glue can have good adhesive strength with glass, can have good adhesive strength with the ultrathin transparent PC sheet as base material again,
And this high intensity UV glue is the optical grade UV glue that light transmittance reaches more than 99%, the adhesive strength between itself and ultrathin transparent PC sheet up to
2.0-2.6KG (4mm heavy sheet glass limit, 90 degree of peeling forces), while ensureing adhesive strength, coordinates with ultrathin transparent PC sheet and makes
With, make through glass screen that the inventive method is bonding is follow-up be spliced into DLP giant-screen after, the light transmittance of glass screen thickness direction
Reach more than 95%, greatly improve physics and the optical visual effect of large-screen splicing seam, accomplish seamless spelling truly
Connect.The inventive method applied range, can be applicable to various sizes be 50-80 inch, thickness be that the DLP of 3-4mm is combined and spliced
Glass screen bonding.
Accompanying drawing explanation
Fig. 1 is light transmittance detection movement mechanical location adjustment figure used；
Fig. 2 is that lattice are measured in 9 used of light transmittance detection.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
The adhering method of the combined and spliced glass screen of DLP of embodiment, comprises the following steps:
1) to a size of 67 inches, thickness be that the four limit anhydrous alcohols of glass screen of 4mm clean more than twice repeatedly,
Then four limits in this glass screen uniformly coat one layer of silane coupling agent, and silane coupling agent is that the model that Guangzhou Ai Lite company produces is
The oil-water separating agent of F7701；
2) temperature be 23-25 DEG C, constant humidity be less than 50%, air pollutants granularity is the construction field of million grades
Ground, in the four uniform applying glues in limit of the glass screen being coated with silane coupling agent, glue used is the model that Guangzhou Ai Lite company produces
For the high intensity UV glue of T3422B, the glue-line that after applying glue, tetragon in glass screen becomes thickness to be 0.25 ± 0.02mm, then
It is attached on glue-line and use transparent smooth mould to being attached to glue-line by smooth for ultrathin transparent PC sheet that thickness is 0.125mm
On ultrathin transparent PC sheet uniformly exert a force pressing, then the four limit 9s by UV lamp positioning irradiation glass screen, make at the beginning of high intensity UV glue
Step solidification, then removes unnecessary cull with alcohol washes, afterwards with four limit 310s of UV lamp positioning irradiation glass screen, makes height
Intensity UV glue is fully cured, and i.e. completes the combined and spliced glass screen of DLP bonding with PC sheet.
In above example, the wavelength of the ultraviolet light that UV lamp uses is 365nm, and intensity of illumination is 18mW/cm2；This UV lamp
On be equiped with intervalometer, for realizing the accurate control to the UV lamp positioning irradiation time.
The above-mentioned glass screen bonding with PC sheet is carried out to the detection of light transmittance and adhesive strength.
One, light transmittance detection:
(1) measuring condition:
Environment: requiring that measurement is carried out in darkroom, indoor illumination intensity is not higher than 0.1Lux.Ambient temperature is 23 DEG C-25 DEG C, wet
Degree is 40%～60%, closes dustfree environment；Power supply: the fluctuation range of input voltage is less than 5%.
(2) testing light source and device
Tested rear projection screen should use same light source (movement) to measure, and the camera lens of this movement is necessary with DMD output
Coaxial state placed in the middle, except test this movement outer must not its use, to ensure to test the comparability of data.Should run 10 minutes at movement
Just test when entering steady statue later.Movement uses direct rear projection screen mode to put, movement output optical axis and quilt
Test screen is vertical (and coaxial with the initial point of Fresnel Lenses).Resolution check pattern should be used lens focusing, make whole
The definition of image is in optimum state.Picture shows all over the screen, and picture center is coaxial with movement optical axis, eliminates trapezoidal distortion.Machine
Core brightness, contrast are arranged on the initial condition that dispatches from the factory.
Tested Fresnel Lenses should use the light source close to directional light to measure, and should ensure that light source, Fresnel Lenses
Center is coaxial, Fresnel Lenses is close to outside testing jig glass.
When movement light source adds up to use more than 500 hours, change in time, to ensure test the data precision.
(3) measuring instrument
Using TES-1336A illumination meter smooth with testing jig glass outer side, photosensitivity test head midpoint is coaxial with screen center
Putting measurement, outside use MINOLTA LS-100 luminance meter and screen, then 1700mm, photosensitivity test head midpoint and screen center are total to
Axle puts measurement.
(4) operator
In order to reduce the veiling glare impact on measurement result, operator should wear dark working clothing.Should avoid high anti-during operation
Penetrate article and enter light path.
(5) adjust and measure with figure
Movement mechanical location adjusts figure (ray machine built-in signal) and sees Fig. 1, measures lattice (signal generator) at 9 and sees Fig. 2.
(6) measuring process and computational methods
Brightness: in the case of input 100% full frame white pattern, be placed on glass with LS-100 luminance meter photosensitivity test head midpoint
Above measure such as the brightness at position thickness in four some corresponding sides of Fig. 2 (2,4,6,8), calculate 4 meansigma methodss L1 (Lux) for former.
Light transmittance: in the case of input 100% full frame white pattern, be placed on LS-100 luminance meter photosensitivity test head midpoint
Measure such as the brightness at position thickness in four some corresponding sides of Fig. 2 (2,4,6,8) on the glass of bonding UV glue, calculate at 4 averagely
Value L2 (Lux).Take the glass screen bonding with PC sheet of 5 pieces of embodiments, 5 pieces of original sheet glasses and 5 blocks of existing acrylic acid respectively
Hot melt solidifies the gluing glass screen connect, and carries out the test of light transmittance, and test value see table:
The computing formula of light transmittance is: light transmittance=L2/L1 × %.It is computed, putting down of 5 blocks of glass of the embodiment of the present invention
All light transmittances are 98.4%, and it is 30.7% that existing acroleic acid hot melt solidifies the average transmittance of the gluing 5 blocks of glass connect.
Two, adhesive strength detection:
Test object: bonding with the PC sheet that high intensity UV glue in the present invention and 0.175mm are thick and place the 4mm thickness of 24 hours
4 pieces of AG glass (frosted), numbered No. 1, No. 2, No. 3 and No. 4；Method of testing: tension tester, 90 degree of peeling forces.Test
Result is as follows:
| Sequence number | Test object | 90 degree of peeling forces (KG) |
| 1 | The 1 long limit of flint glass F | 2.1 |
| 2 | The 1 long limit of flint glass F | 2.5 |
| 3 | 1 flint glass F minor face | 2.3 |
| 4 | 1 flint glass F minor face | 2.5 |
| 5 | The 2 long limits of flint glass F | 2.3 |
| 6 | The 2 long limits of flint glass F | 2.0 |
| 7 | 2 flint glass F minor faces | 2.6 |
| 8 | 2 flint glass F minor faces | 2.5 |
| 9 | The 3 long limits of flint glass F | 2.4 |
| 10 | The 3 long limits of flint glass F | 2.3 |
| 11 | 3 flint glass F minor faces | 2.6 |
| 12 | 3 flint glass F minor faces | 2.6 |
| 13 | The 4 long limits of flint glass F | 2.3 |
| 14 | The 4 long limits of flint glass F | 2.5 |
| 15 | 4 flint glass F minor faces | 2.5 |
| 16 | 4 flint glass F minor faces | 2.5 |
| Meansigma methods | 2.40625 |
In above example, silane coupling agent is the oil-water separating agent that model is F7701 that Guangzhou Ai Lite company produces, and it glues
Degree is 50CPS, and proportion is 1.1g/cm3, appearance transparent；High intensity UV glue is that the model that Guangzhou Ai Lite company produces is
The product of T3422B, its viscosity is 150-300CPS, shear strength≤16MPa, and first hardening time is 10s, temperature resistant range is-
40-150 DEG C, transparency is 99%, and Shore hardness is 65D.
Claims (5)
1. the adhering method of the combined and spliced glass screen of DLP, it is characterised in that comprise the following steps:
1) four limits in glass screen uniformly coat one layer of silane coupling agent, and described silane coupling agent is the type that Guangzhou Ai Lite company produces
It number it is the oil-water separating agent of F7701；
2) temperature be 23-25 DEG C, constant humidity is less than 50% and air pollutants granularity is the construction site of million grades,
In the four uniform applying glues in limit of the glass screen being coated with described silane coupling agent, glue used is the type that Guangzhou Ai Lite company produces
Number it is the high intensity UV glue of T3422B, the glue-line that after applying glue, tetragon in glass screen becomes thickness to be 0.25 ± 0.02mm, so
After by the smooth pressing that is attached on described glue-line and uniformly exerts a force of ultrathin transparent PC sheet that thickness is 0.115-0.135mm, then
With four limit 8-10s of the glass screen described in UV lamp positioning irradiation, make described high intensity UV glue primary solidification, then use ethanol
Clean and remove unnecessary cull, afterwards with four limit 300-330s of the glass screen described in described UV lamp positioning irradiation, make institute
The high intensity UV glue stated is fully cured, and i.e. completes the combined and spliced glass screen of DLP bonding with PC sheet.
The adhering method of the combined and spliced glass screen of a kind of DLP the most according to claim 1, it is characterised in that step 2)
In, use transparent smooth mould the ultrathin transparent PC sheet being attached on described glue-line uniformly to be exerted a force pressing.
The adhering method of the combined and spliced glass screen of a kind of DLP the most according to claim 1 and 2, it is characterised in that step
2), in, the wavelength of the ultraviolet light that described UV lamp uses is 365nm, and intensity of illumination is 15-20mW/cm2。
The adhering method of the combined and spliced glass screen of a kind of DLP the most according to claim 1 and 2, it is characterised in that step
2), in, the accurate control to the described UV lamp positioning irradiation time is realized by installing intervalometer on described UV lamp.
The adhering method of the combined and spliced glass screen of a kind of DLP the most according to claim 1 and 2, it is characterised in that described
The size of glass screen be 50-80 inch, thickness is 3-4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510106651.3A CN104777707B (en) | 2015-03-12 | 2015-03-12 | A kind of adhering method of the combined and spliced glass screen of DLP |
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| CN201510106651.3A CN104777707B (en) | 2015-03-12 | 2015-03-12 | A kind of adhering method of the combined and spliced glass screen of DLP |
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| CN104777707B true CN104777707B (en) | 2016-10-12 |
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Families Citing this family (4)
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| CN105034669A (en) * | 2015-07-27 | 2015-11-11 | 东莞市昆顺树脂制品有限公司 | Glass transfer process |
| CN110760896A (en) * | 2018-07-26 | 2020-02-07 | 苏州苏大维格科技集团股份有限公司 | Crease-resistant electroforming process for working plate |
| CN112573835A (en) * | 2020-12-01 | 2021-03-30 | 昆山明宝滕纳米科技有限公司 | Preparation method of AG glass with decorative part |
| CN112680124A (en) * | 2020-12-25 | 2021-04-20 | 安徽金龙浩光电科技有限公司 | Novel glass bonding method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3992841A (en) * | 1974-08-30 | 1976-11-23 | Ward Jr Robertson | Panel construction and projection screen constructed from such panels |
| US6869185B2 (en) * | 2002-10-16 | 2005-03-22 | Eastman Kodak Company | Display systems using organic laser light sources |
| CN2924590Y (en) * | 2006-01-24 | 2007-07-18 | 罗筱泠 | Multi-layer combined screen and orthographic projection system with same |
| CN101876783A (en) * | 2009-04-28 | 2010-11-03 | 上海幻影显示技术有限公司 | Method for manufacturing large glass-free digital light processor (DLP) digital screen |
| CN201867582U (en) * | 2010-11-11 | 2011-06-15 | 北京环宇蓝博科技有限公司 | Digital light processing (DLP) screen capable of reducing optical split seams |
| CN104238254B (en) * | 2013-06-20 | 2016-08-17 | 北京丰信达科技有限公司 | A kind of display screen manufacture method |
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