CN105572773B - A kind of silk-screen printing preparation method of large area microlens array - Google Patents
A kind of silk-screen printing preparation method of large area microlens array Download PDFInfo
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- CN105572773B CN105572773B CN201510972605.1A CN201510972605A CN105572773B CN 105572773 B CN105572773 B CN 105572773B CN 201510972605 A CN201510972605 A CN 201510972605A CN 105572773 B CN105572773 B CN 105572773B
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- microlens array
- half tone
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- screen printing
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0012—Arrays characterised by the manufacturing method
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- Optics & Photonics (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
The present invention relates to a kind of silk-screen printing preparation method of large area microlens array, comprise the following steps:Parameter carries out film design first according to needed for microlens array and half tone makes;Then UV photosensitive resin preparations are carried out so that UV photosensitive resins viscosity is between 100CP 10000CP.Appropriate UV photosensitive resins are poured on half tone and the even rear progress silk-screen printing in UV photosensitive resins stand is prepared into UV photosensitive resin arrays after the substrate after cleaning is alignd with half tone during printing, after time of repose being controlled according to lens parameter, solidified under the ultraviolet lamp of wavelength needed for being placed on, you can realize the large area production of microlens array.Preparation method proposed by the invention the carry out film design of parameter and half tone need to only be prepared according to needed for microlens array, large area microlens array can rapidly be prepared, and the uniformity and fineness of microlens array are improved, it is prepared by the microlens array for being especially suitable for integration imaging 3D display.
Description
Technical field
The present invention relates to the silk-screen printing in New Type Display Devices field, more particularly to a kind of large area microlens array to make
Method.
Background technology
Microlens array is widely used in 3D display device, CCD, projecting apparatus and other optics.Conventional microlens
Array preparation method has the hot technique of backflow of photoresist, diamond turning method, chemical deposition etc. to realize that large-area manufacturing is micro-
Lens array, but the ginseng such as not smooth enough, unit microlens radius of pattern be present in the microlens array made using these methods
The inconsistent phenomenon of number;Laser straight literary style in recent years, inkjet printing can produce the good microlens array of pattern, still
Large-area manufacturing microlens array, which is carried out, using these methods but expends very much the time.And just lived before being screen printed onto very early
Jump in our sight, it is a kind of a kind of quick and convenient printing technology that can realize large area production.
The printed sheet that the inking firmness of UV ink is fabulous to may insure large area printed document is good colour consistent and not climate
The influence of condition change, UV ink will not be in online dryings so printed document to trickle contrast or to high light details
As long as printed document can comply fully with the requirement of client using high mesh number silk-screen printing its quality.Advantage in this quality, especially
Be embodied in water base UV ink because this UV ink in online moist, not stifled eye, without clean silk after having printed one edition
Half tone, recurrent shutdown phenomenon and percent defective when using solvent-based ink are greatly reduced, while also significantly improved
The speed productivity ratio and economic benefit of silk-screen printing.UV photosensitive resins are combined with silk-screen printing can realize well it is micro-
The large area production of lens array, ensure the uniformity and accuracy of microlens array.
The content of the invention
It is existing to overcome it is an object of the invention to provide a kind of silk-screen printing preparation method of large area microlens array
Defect present in technology.
To achieve the above object, the technical scheme is that:A kind of silk-screen printing of large area microlens array makes
Method, UV photosensitive resin arrays are made using silk-screen printing, and by controlling the UV photosensitive resins array pitch, the photosensitive trees of UV
Fat viscosity and UV photosensitive resins cure parameter form microlens array.
In an embodiment of the present invention, also comprise the following steps:
Step S1:The film is designed, according to the parameter designing film needed for the microlens array;
Step S2:Half tone is made, the film pattern of the film is transferred to the half tone, grenadine used in the half tone
A diameter of 5 microns to 500 microns, the grenadine aperture is 10 microns to 500 microns;
Step S3:UV photosensitive resins are prepared, the UV photosensitive resins viscosity is in 100CP between 10000CP;
Step S4:UV photosensitive resin arrays are prepared by silk-screen printing, by the transparency carrier after cleaning and the half tone
Contraposition, the UV photosensitive resins are poured into the half tone, carry out silk-screen printing, the UV photosensitive resin array samples printed is quiet
Put 10s to 10min and form microlens shape;
Step S5:Microlens array is formed by ultra-violet curing, the UV photosensitive resins array sample is placed on ultraviolet
Carry out being formed by curing microlens array under line lamp, and hardening time is 5s to 10 minutes.
In an embodiment of the present invention, in the step S1, according to the UV photosensitive resins viscosity and the silk screen
The difference of the interval time to UV photosensitive resins array sample solidification is printed, lenslet dimension is than actual institute in the film
Lenslet dimension needed for stating is small 100 nanometers to 1 millimeter.
In an embodiment of the present invention, in the step S2, the grenadine is polyester grenadine, nylon grenadine or stainless steel
Grenadine.
In an embodiment of the present invention, in the step S2, after the half tone coats photoresist, made of the film
Mask plate is exposed, and nitrogen dries up and silk-screen half tone is made after development, is completed the half tone and is prepared.
In an embodiment of the present invention, in the step S4, the transparency carrier includes simple glass, ito glass, stone
English glass and polymer.
In an embodiment of the present invention, the figure of the lenticule includes circle, rectangle, polygon and strip post lens
Regular array of protrusions.
Compared to prior art, the invention has the advantages that:A kind of large area lenticule proposed by the invention
The silk-screen printing preparation method of array, the carry out film design of parameter and half tone it need to only be prepared according to needed for microlens array, can
Rapidly to prepare large area microlens array, and the uniformity and fineness of microlens array are improved, be especially suitable for collecting
It is prepared by the microlens array into imaging 3D display.
Brief description of the drawings
Fig. 1 is a kind of Making programme schematic diagram of large area microlens array provided by the invention.
Fig. 2 is the film structure partial schematic diagram of first embodiment provided by the invention.
Fig. 3 is the half tone partial schematic diagram of first embodiment provided by the invention.
Fig. 4 is the structural representation for the microlens array that first embodiment silk-screen printing provided by the invention obtains.
Fig. 5 is the film structure partial schematic diagram of second embodiment provided by the invention.
Fig. 6 is the half tone partial schematic diagram of second embodiment provided by the invention.
Fig. 7 is the structural representation for the microlens array that second embodiment silk-screen printing provided by the invention obtains.
Embodiment
Below in conjunction with the accompanying drawings, technical scheme is specifically described.
For the objects, technical solutions and advantages of the present invention are more clearly understood, specific embodiment and phase will be passed through below
Accompanying drawing is closed, the present invention is described in further detail.In figure, for clarity, being exaggerated layer and the thickness in region, but it is used as and shows
It is intended to should not be considered as strictly reflecting the proportionate relationship of physical dimension.Here, the idealization that reference chart is the present invention is implemented
Illustrating and be intended to, embodiments of the invention should not be considered limited to the given shape in the region shown in figure, but including institute
Obtained shape, such as deviation caused by manufacture.Represent that the expression in figure is schematic with rectangle or circle in the present embodiment
, but this should not be considered as limiting the scope of the invention.There is the size of barrier fluctuating pattern with the cycle that rises and falls in the present embodiment
Certain limit, it can be risen in actual production according to being actually needed design fluctuating pattern magnitude and its rising and falling the cycle in embodiment
The numerical value for lying prostrate the cycle is signal value, but this should not be considered as limiting the scope of the invention.
Further, such as a kind of Fig. 1 Making programme schematic diagrames of large area microlens array provided by the invention.This hair
A kind of silk-screen printing preparation method of large area microlens array of bright offer, comprise the following steps:
Step S1:The film designs:The parameter designing film according to needed for microlens array, according to UV photosensitive resins viscosity used
Different with the interval time of printing to UV solidifications, lenslet dimension is smaller than actually required lenslet dimension 100 nanometers to 1 in the film
Millimeter;
Step S2:Half tone makes:Luxuriant and rich with fragrance pattern is transferred to half tone, grenadine used is polyester grenadine, nylon grenadine in half tone
Or stainless steel grenadine, a diameter of 5 microns to 500 microns of grenadine, grenadine aperture are 10 microns to 500 microns;
Step S3:UV photosensitive resins are prepared:Configuration UV photosensitive resins as needed so that UV photosensitive resin viscositys exist
Between 100CP-10000CP, when the viscosity of UV photosensitive resins is small, the size of prepared lenticule is micro- compared in the film and half tone
Mirror size is bigger, and thickness is thicker;
Step S4:Silk-screen printing prepares UV photosensitive resin arrays:By the transparency carrier after cleaning and half tone contraposition work
Appropriate UV photosensitive resins are poured into after carrying out on half tone, carry out silk-screen printing, will according to required lenslet dimension and spacing
The sample printed stands 10s-10min and forms preferable microlens shape;
Step S5:Ultra-violet curing forms microlens array:Sample is placed under the ultraviolet lamp of required wavelength and consolidated
Change forms microlens array.
In order to allow those skilled in the art specifically to understand a kind of screen printing for large area microlens array that invention is proposed
Brush preparation method, is illustrated with reference to specific embodiment.
Embodiment one:
Fig. 2 is the film structure partial schematic diagram of embodiment one, in the present embodiment, designs film figure first as circle
Array of protrusions, white glass is selected to select the higher 6230G easily solidified of viscosity as substrate, silk-screen printing UV photosensitive resins, finally select
The ultraviolet light for selecting 365 nano wavebands is solidified.
Further, in the present embodiment, the silk-screen printing system of a kind of large area microlens array provided by the present invention
Make method, comprise the following steps:
Step S1:The film designs
The partial schematic diagram of the film is illustrated in figure 2, the film figure of the present embodiment design is a diameter of 250 microns of circle
Shape, array 384*216, the spacing between adjacent circle are 38 microns, and circular protrusions highly are 0.4 micron.
Step S2:Half tone makes
Luxuriant and rich with fragrance pattern is transferred to half tone, selects polyester webs gauze yarn, it is contemplated that the raised pattern of microlens array, this implementation
The thickness selection that example is used to prepare half tone is 20 microns, and the half tone Local map finally prepared by the indirect film is as shown in figure 3, parameter
It is a diameter of 250 microns of circle for site, array 384*216, the spacing between adjacent circle is 38 microns, and circular groove is deep
Spend for 20 microns.
Step S3:Base-plate cleaning
The glass substrate for choosing size needed for one piece carries out scribing, and it is Win-10 by volume that glass substrate, which is placed in,:
DI water=3:In 97 cleaning fluids, 15min is cleaned using the ultrasonic machine that frequency is 32KHz, after spraying 2min, then is placed in volume
Than for Win-41:DI water=5:In 95 cleaning fluids, 10min is cleaned using the ultrasonic machine that frequency is 40KHz, through circulation certainly
After water spray rinsing 2min, the ultrasonic machine for recycling frequency to be 28KHz cleans 10min in DI pure water, is blown through nitrogen gun
It is standby that insulation more than 30min in 50 DEG C of cleaning ovens is placed in after dry.
Step S4:Silk-screen printing prepares UV photosensitive resin arrays
By step S2 half tone and step S3 substrate to good position, by appropriate model 6230G UV photosensitive resins
In half tone edge, the even rear progress silk-screen printing in UV photosensitive resins stand is obtained into microlens array.
Step S5:The solidification of microlens array
Exposure 5min under 365 nanometers of uviol lamps is placed on after the microlens array standing 30s made by step S4 to be consolidated
Change obtains microlens array as shown in Figure 4.
So far, a kind of silk-screen printing preparation method of large area microlens array is formed.
Embodiment two:
Such as the film structure partial schematic diagram that Fig. 5 is embodiment two, in the present embodiment, it is bar to design film figure first
Shape array of protrusions, white glass is selected to select the higher 6230G easily solidified of viscosity as substrate, silk-screen printing UV photosensitive resins, finally
The ultraviolet light of 365 nano wavebands is selected to be solidified.
Further, in the present embodiment, the silk-screen printing system of a kind of large area microlens array provided by the present invention
Make method, comprise the following steps:
Step S1:The film designs
Be illustrated in figure 5 the partial schematic diagram of the film, the film figure of the present embodiment design be length be 6cm, width be
250 microns of strip, array 384*1, the spacing between adjacent strip are 40 microns, and strip projected parts highly are 0.4 micron.
Step S2:It is prepared by half tone
Luxuriant and rich with fragrance pattern is transferred to half tone, selects nylon grenadine as half tone grenadine material, it is contemplated that microlens array it is convex
Pattern is played, the thickness selection that the present embodiment is used to prepare half tone is 15 microns, the half tone Local map finally prepared by the indirect film
As shown in fig. 6, it is length is 6cm, width is 250 microns strip that parameter, which is site, array 384*1, between adjacent strip
Spacing be 40 microns, strip groove depth be 15 microns.
Step S3:Base-plate cleaning
The glass substrate for choosing size needed for one piece carries out scribing, and it is Win-10 by volume that glass substrate, which is placed in,:
DI water=3:In 97 cleaning fluids, 15min is cleaned using the ultrasonic machine that frequency is 32KHz, after spraying 2min, then is placed in volume
Than for Win-41:DI water=5:In 95 cleaning fluids, 10min is cleaned using the ultrasonic machine that frequency is 40KHz, through circulation certainly
After water spray rinsing 2min, the ultrasonic machine for recycling frequency to be 28KHz cleans 10min in DI pure water, is blown through nitrogen gun
It is standby that insulation more than 30min in 50 DEG C of cleaning ovens is placed in after dry.
Step S4:Silk-screen printing prepares UV photosensitive resin arrays
By step S2 half tone and step S3 substrate to good position, by appropriate model 6230G UV photosensitive resins
In half tone edge, the even rear progress silk-screen printing in UV photosensitive resins stand is obtained into microlens array.
Step S5:The solidification of microlens array
Exposure 5min under 365 nanometers of uviol lamps is placed on by the step S4 microlens arrays made to be solidified to obtain such as figure
Microlens array shown in 7.
So far, a kind of silk-screen printing preparation method of large area microlens array is formed.
Further, in embodiment one and embodiment two, the figure of lenticule include circle, rectangle, polygon and
The regular array of protrusions of strip post lens.
Further, in embodiment one and embodiment two, half tone preparation process is as follows:Photoresist is coated in half tone
Afterwards, do mask plate with the film to be exposed, nitrogen dries up and silk-screen half tone is made after development.
Further, in embodiment one and embodiment two, transparency carrier material includes simple glass, ito glass, stone
English glass, polymer.
A kind of silk-screen printing preparation method of large area microlens array provided by the invention is not limited to above-described embodiment,
The object, technical solutions and advantages of the present invention are further described by above-listed preferred embodiment, should be understood that
It is that the foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, it is all in the spiritual and former of the present invention
Within then, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (1)
1. a kind of silk-screen printing preparation method of large area microlens array, it is characterised in that comprise the following steps:
Step S1:The film is designed, according to the parameter designing film needed for the microlens array;
Step S2:Half tone is made, the film pattern of the film is transferred to the half tone, grenadine diameter used in the half tone
For 5 microns to 500 microns, the grenadine aperture is 10 microns to 500 microns;
Step S3:UV photosensitive resins are prepared, the UV photosensitive resins viscosity is in 100CP between 10000CP;
Step S4:UV photosensitive resin arrays are prepared by silk-screen printing, the transparency carrier after cleaning and the half tone are aligned,
The UV photosensitive resins are poured into the half tone, carry out silk-screen printing, the UV photosensitive resins array sample printed is stood into 10s
To 10min, microlens shape is formed;
Step S5:Microlens array is formed by ultra-violet curing, the UV photosensitive resins array sample is placed on ultraviolet lamp
Under be formed by curing microlens array, and hardening time is 5s to 10 minutes;
In the step S1, according to the UV photosensitive resins viscosity and described the UV photosensitive resins array is screen printed onto
The difference of the interval time of sample solidification, 100 nanometers smaller than actual lenslet dimension of lenslet dimension is to 1 milli in the film
Rice;
In the step S2, the grenadine is polyester grenadine, nylon grenadine or stainless steel grenadine;
In the step S2, after the half tone coats photoresist, do mask plate with the film and be exposed, nitrogen after development
Air-blowing is drying into silk-screen half tone, completes the half tone and prepares;
In the step S4, the transparency carrier includes simple glass, ito glass, quartz glass and polymer;
The figure of the lenticule includes the regular array of protrusions of circle, rectangle, polygon and strip post lens;
In the step S4, base-plate cleaning includes:The substrate for choosing size needed for one piece carries out scribing, and substrate is placed in by body
Product ratio is Win-10:DI water=3:In 97 cleaning fluids, 15min, spray are cleaned using the ultrasonic machine that frequency is 32KHz
After 2min, then it is Win-41 to be placed in volume ratio:DI water=5:It is clear using the ultrasonic machine that frequency is 40KHz in 95 cleaning fluids
10min is washed, after circulating running water spray rinsing 2min, the ultrasonic machine for recycling frequency to be 28KHz cleans in DI pure water
10min, it is standby that insulation more than 30min in 50 DEG C of cleaning ovens is placed in after nitrogen gun dries up.
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TWI768031B (en) * | 2018-04-20 | 2022-06-21 | 世界先進積體電路股份有限公司 | Method for forming semiconductor device |
CN108670561A (en) * | 2018-05-28 | 2018-10-19 | 宁波市第医院 | A kind of development gauze and preparation method thereof |
CN108873119B (en) * | 2018-06-12 | 2022-05-10 | 华天慧创科技(西安)有限公司 | Wafer-level optical element and preparation method thereof |
CN109814183A (en) * | 2019-04-02 | 2019-05-28 | 仰恩大学 | A kind of curved microlens array manufacturing method based on inkjet printing |
CN110642525A (en) * | 2019-08-29 | 2020-01-03 | 珠海北玻电子玻璃有限公司 | Preparation method of toughened glass assembly and toughened glass assembly |
CN113570976A (en) * | 2021-07-16 | 2021-10-29 | 彼博股份有限公司 | Curved surface integrated imaging display device and manufacturing method thereof |
WO2023097623A1 (en) * | 2021-12-02 | 2023-06-08 | 京东方科技集团股份有限公司 | Microlens structure and manufacturing method therefor, and display apparatus |
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