CN206618876U - Substrate with controllable visible light transmittance rate - Google Patents
Substrate with controllable visible light transmittance rate Download PDFInfo
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- CN206618876U CN206618876U CN201720156561.XU CN201720156561U CN206618876U CN 206618876 U CN206618876 U CN 206618876U CN 201720156561 U CN201720156561 U CN 201720156561U CN 206618876 U CN206618876 U CN 206618876U
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- light transmittance
- visible light
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Abstract
The utility model provides a kind of substrate with controllable visible light transmittance rate, the substrate includes an egative film with certain visible light transmittance rate, the ink coating of thickness and/or composition can be adjusted covered with one in the backsheet surface, the ink coating has certain visible light transmittance rate.The utility model has the advantage of the utility model prepares the ink coating structure that can be used for controlling substrate visible light transmittance rate using ink jet printing device, by the composition or thickness that adjust ink coating, it is possible to achieve the regulation on demand to substrate light transmittance.The ink coating structure is prepared using ink jet printing device, equipment investment cost and low manufacture cost, technique is easy flexibly, simultaneously, due to using digital production equipment, layer thickness uniformity is high, and batch is stable, can apply to be related to the common and high-end display field that visible light transmittance rate is accurately controlled.
Description
Technical field
The utility model is related to optical field, more particularly to a kind of substrate with controllable visible light transmittance rate.
Background technology
When the incident object of light, reflection, three kinds of properties of absorption and transmission are presented with.Light is blocked by the body, by certain
Angle reflection comes out, and referred to as " reflects ", is represented with reflectivity；After light is by object, a part of light energy is lost, and is referred to as
" absorption ", is represented with absorptivity；Light passes through the property of object, referred to as " transmits ", is represented with light transmittance.Light transmittance, which is equal to, to be passed through
The luminous flux of transparent or semitransparent object and the percentage of its incident flux, can accurately be surveyed by the light transmittance instrument of specialty
Amount.In transparent or semitransparent material sector application, light transmittance is an important spectrophotometric data, in visible ray（380-
760nm）Field category, typically using high light transmittance properties as main target, such as daylighting glass used in everyday, glass of automobile
Glass, display protective glass etc..And in some backlight display fields, surface is used as according to the relatively low material of visible light transmittance rate
Layer, internally without display light source in the case of, outside visible ray penetrates superficial layer, and to reach internal luminous flux relatively low, through it is internal instead
The luminous flux for penetrating superficial layer after penetrating again is just lower, now, and human eye can only observe surface, it is more difficult to perspective inside；On the contrary,
If now internal have display light source, the light that internal light source is sent still has a small amount of remaining luminous flux after by aforementioned surfaces layer
It can be received and recognize by human eye, people are just it is observed that luminous state.Therefore, this kind of substrate material compared with low-transmittance is some
Can be realized in display application it is luminous with non-luminous simple but notable difference visual effect, can be with non-luminous state
Realize as overall decoration function, and then there is the effect of display in the state of luminous, such effect has certain
Application value.
At present, the process of such relatively low visible light transmittance rate substrate material is prepared, mass colouring is can select and many
The method such as layer is compound.Wherein, MULTILAYER COMPOSITE method mainly realizes that now substrate is combined by substrate material complex optics functional layer
The total light transmittance of material is theoretically equal to the light transmittance of substrate and the product of functional layer light transmittance.Such functional layer typically can be with
Prepared by methods such as pad pasting is compound, chemical vapor deposition, vacuum splashing and plating, coating, silk-screen printings.The shortcoming of prior art exists
In mass colouring method is that directly substrate material body is doped using dyestuff or tingle body, this method manufacture product spirit
Activity is poor, and quality control is relative complex, and cost is of a relatively high；MULTILAYER COMPOSITE rule has relatively flexible characteristic, wherein, patch
Though film is compound, the method for coating and silk-screen printing is with low cost and technique is simple, it can not avoid that performance is unstable, functional layer
The characteristics of uniformity is not good, it is impossible to applied to some high optics fields, the process system such as chemical vapor deposition, vacuum splashing and plating
Standby functional layer quality is higher, process stabilizing, but when preparing the functional layer of relatively low visible light transmittance rate, it is necessary to multi-layer thin membrane stack
Product, plated film time is long, and equipment investment and manufacturing cost are higher.
Therefore, a kind of new process for preparing relatively low visible light transmittance rate substrate material is needed badly, to overcome above-mentioned lack
Point.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of substrate with controllable visible light transmittance rate, can
Overcome the shortcoming of prior art.
In order to solve the above problems, the utility model provides a kind of substrate with controllable visible light transmittance rate, including
One has the egative film of certain visible light transmittance rate, and the oil of thickness and/or composition can be adjusted covered with one in the backsheet surface
Black coating, the ink coating has certain visible light transmittance rate.
Further, the visible light transmittance rate of the ink coating is 1% ~ 50%.
Further, the thickness of the ink coating is 0.5 ~ 50 micron, preferably 1 ~ 20 micron.
The utility model has the advantage of the utility model is prepared using ink jet printing device can be used for controlling substrate can
The ink coating structure of light light transmittance is seen, by the composition or thickness that adjust ink coating, it is possible to achieve to substrate light transmittance
Adjust on demand.The ink coating structure, equipment investment cost and low manufacture cost, technique letter are prepared using ink jet printing device
Just flexibly, simultaneously as using digital production equipment, layer thickness uniformity is high, and batch is stable, can apply to relate to
And the common and high-end display field that visible light transmittance rate is accurately controlled.
Brief description of the drawings
Fig. 1 is the structural representation for the substrate that the utility model has controllable visible light transmittance rate；
Fig. 2 is the structural representation of the preparation method for the substrate that the utility model has controllable visible light transmittance rate.
Embodiment
The specific embodiment party of the substrate with controllable visible light transmittance rate provided below in conjunction with the accompanying drawings the utility model
Formula elaborates.
Referring to Fig. 1, there is the utility model the substrate of controllable visible light transmittance rate, which to include one, has certain visible light transmission
The egative film 4 of rate, can adjust the ink coating 3 of thickness and/or composition, the ink is applied on the surface of egative film 4 covered with one
Layer 3 has certain visible light transmittance rate.The ink coating 3 is sprayed on the surface of egative film 4 by ink jet printing device, and uniformly
It is attached to the surface of egative film 4.By the thickness and/or composition that adjust ink coating 3, it is possible to achieve having to the utility model can
Control the regulation on demand and control of the visible light transmittance rate of the substrate of visible light transmittance rate.
The egative film 4 can be made up of transparent or semitransparent material, for example glass, ceramics, polymer or its composite,
It has certain visible light transmittance rate.The ink coating 3 can be made of functional ink, and the functional ink is main
Be made up of macromolecule resin, solvent, pigment and other compositions, functional ink can be water-based ink, solvent-based ink or
UV curable inks, preferably solvent-based ink or UV curable inks.The color of ink coating 3 can be arbitrary color,
Preferably black.The visible light transmittance rate of the ink coating 3 is 1% ~ 50%, such as 10%, 20%, 30%, 40%.The ink
The thickness of coating 3 be 0.5 ~ 50 micron, preferably 1 ~ 20 micron, such as 5 microns, 10 microns, 15 microns.
The utility model also provides a kind of substrate preparation method with controllable visible light transmittance rate.The preparation method bag
Following steps are included, the utility model preparation method is described below in conjunction with Fig. 2：
（1）There is provided one has the egative film of certain visible light transmittance rate.
The egative film 4 can be made up of transparent or semitransparent material, for example glass, ceramics, polymer or its composite,
It has a visible light transmittance rate.The ink receiving surface of the egative film 4 is smooth face, and another side is frosted process face, is used
In the light reflection for weakening the surface.Preferably, the ink receiving surface to egative film 4 carries out pre-treatment, oily in subsequent step to ensure
Ink can fully infiltrate in substrate surface to be sprawled and good adhesion property.The pre-treatment includes cleaning and surface is modified two steps
Suddenly.Cleaning step is primarily to remove the residue or dirt of backsheet surface, here preferred ultrasonic cleaning process.Ultrasound
Ripple cleaning process flow is typically followed successively by ultrasonic wave water washing, ultrasonic cleaning agent cleaning, the rinsing of ultrasonic wave water, drying.Complete institute
State needs to carry out surface modification to the ink receiving surface of egative film after cleaning step, and surface modification step is by changing backsheet surface
Structure or performance, to obtain good ink printing characteristic.Chemistry, physics, machinery or plasma can be used in surface modification step
The processing method of the processing mode of body, preferably chemistry or plasma.
（2）Inkjet printing parameters are set, using ink jet printing device in the backsheet surface one ink coating of formation, passed through
Inkjet printing parameters are set to adjust the thickness and/or composition of ink coating.
Egative film 4 is placed on print platform 5, the ink of egative film 4 receives upwardly, inkjet printing parameters to be set, for example, setting
DPI setting values, driving voltage setting value, the working frequency for putting the shower nozzle parameter, ink type, ink jet printing device of shower nozzle 1 are set
Definite value and ink-jet number of times setting value etc..Simultaneously uniform deposition is in the surface of egative film 4 by the formation of nozzle 1 microscopic ink droplets for ink 2, and ink-jet is beaten
Print is finished, and egative film 4 stands some time on print platform, makes the abundant levelling of ink.Pass through the adjustment of above-mentioned parameter, Ke Yigai
Sensitive ink type, inkjet deposited quantity of ink and control ink coating thickness, so as to realize to ink coating visible light transmission
The controllable adjustment of rate.
The ink jet printing device is continuous ink jet printing equipment or drop on demand ink jet printing apparatus.The drop on demand ink jet is beaten
Printing apparatus be heat-sensitive type, piezoelectric type or it is electrostatic in one kind.If piezoelectric ink jet printing device, then the viscosity of ink is 5-
50cps, surface tension is 27-38 dyn/cm.
Then comprised the following steps using ink jet printing device in the method that the surface of egative film 4 forms an ink coating 3：
（a）Select one or more ink jet-print heads.The shower nozzle parameter is：Effective nozzle is 16-2656 holes, is preferably
256-1024 holes, such as 256 holes, 1024 holes.Droplet volume is 1-100pL, preferably 3-30 pL, such as 6pL, 15pL,
20pL, 30pL etc.；
（b）The digitlization parameter of ink jet printing device is set, makes ink by the nozzle in shower nozzle, forms microscopic ink droplets simultaneously
Uniform deposition is in backsheet surface.It is described digitlization parameter be：DPI setting values be 100-1200dpi, preferably 200-500dpi,
Driving voltage setting value is 10-30V, such as 15V, 20V, and working frequency setting value is 10-30KHz, such as 15 KHz, 20
KHz, ink-jet number of times setting value is 1-20 times, preferably 3-10 times.
（3）Solidify the ink coating 2, form the substrate with controllable visible light transmittance rate.
After the completion of ink jet printing process, the egative film with ink coating will carry out the treated of heat cure or UV photocurings
Journey, curing mode and parameter selection are the property settings based on egative film and ink.
Be set forth below the utility model have controllable visible light transmittance rate substrate its preparation method two embodiments,
To further illustrate technical solutions of the utility model.
Embodiment 1
1st, the selection and pre-treatment of egative film
Egative film selects translucent safety glass, it is seen that light light transmittance is 89.3 ± 1%, and thickness is 1.2 ± 0.05mm, size
For 250mm × 250mm.The ink receiving surface of egative film 4 is smooth face, and another side is frosted process face, for weakening the table
The light reflection in face.The egative film 4 sequentially pass through ultrasonic wave water washing, ultrasonic cleaning agent cleaning, ultrasonic wave water rinsing, drying it is clear
Wash journey, completes surface cleaning.Then, the ink receiving surface of egative film 4 is through plasma surface treatment, after the completion of described preceding place
After reason process, that is, obtain the egative film 4 by pre-treatment.
2nd, the preparation of backsheet surface ink coating
Egative film 4 is positioned on the air suction type print platform 5 of piezoelectric ink jet printing device, the ink receiving surface of egative film 4
Put.The ink selection black solvent-based ink of inkjet printing, viscosity is 30 ± 2cps, and surface tension is 31 ± 0.5dyn/cm,
Curing mode is heat cure.Shower nozzle 1 selects two technical grade shower nozzles with 1000 effective nozzles, and droplet size is 6pL, spray
Head has heated at constant temperature function.Ink jet printing device print parameters are selected：Dpi values are 360dpi, and driving voltage is 20V, work
Frequency is 20KHz, and 33 DEG C of shower nozzle constant temperature, spray printing number of times is 6 times.Printing curve is default square-shaped patterns, dimension of picture
260mm×260mm.After the completion of ink jet printing process, egative film 4 stands 2min on print platform, makes the abundant levelling of ink.With
Upper process just completes the preparation of ink coating 3.
3rd, the post processing of backsheet surface ink coating
The egative film 4 for being compounded with ink coating 3 is put into clean dried case and carries out prebake conditions, baking oven lustration class is 100 grades,
Flue curing parameter is 80 DEG C × 3min, completes the dry tack free of ink layer.Complete after above-mentioned pre-firing process, be compounded with ink coating
Egative film 4 be placed into clean dried case carry out solidification baking, baking oven lustration class be 1000 grades, Flue curing parameter be 240 DEG C ×
30min.Complete after above-mentioned aftertreatment technology, backsheet surface compound oil ink coating procedure prepare finish, formed have it is controllable can
See the substrate of light light transmittance.
4th, the glass substrate of the compound oil ink coating structure obtained by process above method is surveyed by light transmittance tester
The average transmittance obtained is 10 ± 1%, and the ink coating after solidification is 4.3 ± 0.5um through Thickness measuring instrument test average thickness.
Embodiment 2：
1st, the selection and pretreatment of egative film；
Select clear polycarbonate（PC）Substrate sheet, light transmittance is 90 ± 1%, and thickness is 1.8 ± 0.05mm, and size is
250mm × 250mm, the two sides of egative film 4 is uniformly smooth burnishing surface.It is clear that the egative film 4 sequentially passes through ultrasonic wave water washing, ultrasonic wave
Lotion cleaning, the rinsing of ultrasonic wave water, the cleaning process of drying, complete surface cleaning.Then, the ink receiving surface of egative film 4 through etc.
After the completion of gas ions surface treatment after described preprocessing process, that is, obtain the egative film 4 by pre-treatment.
2nd, the preparation of backsheet surface ink coating
Egative film 4 is positioned on the air suction type print platform 5 of piezoelectric ink jet printing device, the ink receiving surface of egative film 4
Put.The ink selection black solvent-based ink of inkjet printing, viscosity is 25 ± 2cps, and surface tension is 35 ± 0.5dyn/cm,
Curing mode is heat cure.Shower nozzle 1 selects 3 technical grade shower nozzles with 1000 effective nozzles, and droplet size is 6pL, spray
Head has heated at constant temperature function.Inkjet printing parameters are selected：Dpi values are 300dpi, and driving voltage is 19.5V, and working frequency is
20KHz, 35 DEG C of shower nozzle constant temperature, spray printing number of times is 8 times.Printing curve be default square-shaped patterns, dimension of picture 260mm ×
260mm.After the completion of ink jet printing process, egative film 4 stands 2min on print platform, makes the abundant levelling of ink.Above procedure
Just complete the preparation of ink coating 3.
3rd, the post processing of backsheet surface ink coating
The egative film 4 for being compounded with ink coating 3 is put into clean dried case and carries out prebake conditions, baking oven lustration class is 100 grades,
Flue curing parameter is 80 DEG C × 3min, completes the dry tack free of ink layer.Complete after above-mentioned pre-firing process, be compounded with ink coating
3 egative films 4 are placed into clean dried case and carry out solidification baking, and baking oven lustration class is 1000 grades, and Flue curing parameter is 115 DEG C of 60min.
Complete after above-mentioned aftertreatment technology, prepare and finish in backsheet surface compound oil ink coating procedure, being formed has controllable visible ray saturating
The substrate of light rate.
4th, the egative film for being compounded with ink coating structure obtained by process above is by putting down that light transmittance tester is measured
Equal light transmittance is 8 ± 1%, and ink coating is 5.2 ± 0.5um through Thickness measuring instrument test average thickness.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
Art personnel, on the premise of the utility model principle is not departed from, can also make some improvements and modifications, these improvements and modifications
Also it should be regarded as protection domain of the present utility model.
Claims (4)
1. a kind of substrate with controllable visible light transmittance rate, it is characterised in that there is certain visible light transmittance rate including one
Egative film, can adjust the ink coating of thickness and/or composition, the ink coating has one in the backsheet surface covered with one
Determine visible light transmittance rate.
2. the substrate according to claim 1 with controllable visible light transmittance rate, it is characterised in that the ink coating
Visible light transmittance rate is 1% ~ 50%.
3. the substrate according to claim 1 with controllable visible light transmittance rate, it is characterised in that the ink coating
Thickness is 0.5 ~ 50 micron.
4. the substrate according to claim 3 with controllable visible light transmittance rate, it is characterised in that the ink coating
Thickness is preferably 1 ~ 20 micron.
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| CN106772743A (en) * | 2017-02-21 | 2017-05-31 | 昆山海斯电子有限公司 | Substrate with controllable visible light transmittance rate and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106772743A (en) * | 2017-02-21 | 2017-05-31 | 昆山海斯电子有限公司 | Substrate with controllable visible light transmittance rate and preparation method thereof |
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Effective date of registration: 20220621 Address after: 215311 station 041, room 1, No. 828, Xueyuan Road, Bacheng Town, Kunshan City, Suzhou City, Jiangsu Province (cluster registration) Patentee after: Suzhou xinwanghai Precision Technology Co.,Ltd. Address before: Room 205, building 1, science and technology entrepreneurship base, No. 189, Zhangji Road, Kunshan Development Zone, Suzhou, Jiangsu 215300 Patentee before: KUNSHAN HISENSE ELECTRONIC CO.,LTD. |