KR20130104647A - Driver fiber, electorwetting lens array, electorwetting prism array, it's method of fabrication - Google Patents

Driver fiber, electorwetting lens array, electorwetting prism array, it's method of fabrication Download PDF

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Publication number
KR20130104647A
KR20130104647A KR1020120026309A KR20120026309A KR20130104647A KR 20130104647 A KR20130104647 A KR 20130104647A KR 1020120026309 A KR1020120026309 A KR 1020120026309A KR 20120026309 A KR20120026309 A KR 20120026309A KR 20130104647 A KR20130104647 A KR 20130104647A
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South Korea
Prior art keywords
electrowetting
lens array
fibers
ribbon
base material
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KR1020120026309A
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Korean (ko)
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정병주
박순영
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정병주
박순영
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Priority to KR1020120026309A priority Critical patent/KR20130104647A/en
Publication of KR20130104647A publication Critical patent/KR20130104647A/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/06—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of fluids in transparent cells
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/004—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/12—Fluid-filled or evacuated lenses
    • G02B3/14—Fluid-filled or evacuated lenses of variable focal length
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • G02B5/045—Prism arrays
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field
    • G02F1/166—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
    • G02F1/167—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis

Abstract

The present invention relates to a variable focus microlens array in which electrowetting cell lenses are arranged that can change focus by an electrical signal. The present invention also relates to a variable tilt angle microprism array in which electrowetting cell prisms are arranged to change the tilt angle on the oil surface by an electrical signal. In particular, it relates to a method for easily fabricating arrays ranging from tens to hundreds of micrometers, and to using driver fibers to conveniently control the arrays. Utilizing the present invention, it is possible to configure an autostereoscopic 3D display in combination with a display, and can be applied to laser processing, high performance endoscope, confocal microscope, and high performance optical signal processing.

Description

Electro-wetting cell array for optical path control controlled by driver fiber and manufacturing method thereof {Driver fiber, electorwetting lens array, electorwetting prism array, it's method of fabrication}

The present invention relates to a variable focus lens array in which electrowetting cell lenses are arranged that can change focus by an electrical signal. The present invention also relates to an array of variable tilt angle prisms in which electric wet cell prisms are arranged to change the tilt angle on the oil surface by an electrical signal. In particular, it relates to a method for easily fabricating arrays ranging from tens to hundreds of micrometers, and to using driver fibers to conveniently control the arrays.

The collection of tiny lenses with variable focus is growing as an essential component for the industry. It is driving innovation in many areas, including autonomous 3-D displays, laser focusing, confocals, and high-speed optical inputs.

The liquid variable focus lens array is known from Korean Patent Application No. 10-2005-7021247 "Method of manufacturing variable focus lens assembly". In WO 03/069380 a method of manufacturing individual variable focus lenses is known. The principle of the variable focus lens according to these is as follows. 1 is a basic configuration of a variable focus lens using a known electrowetting technique. Electrowetting technology coats a hydrophobic insulator on one electrode, places water and oil on the insulator, and applies a voltage to another counter electrode in contact with water, which changes the interfacial properties of the hydrophobic insulator to hydrophilic. While pushing, it plays a role of display, liquid lens, liquid transfer, etc. An operation of the variable focus lens will be described with reference to the drawings. The mold 70 has a cylindrical shape with an electrode 20 therein, and a fluoropolymer 10 formed on the electrode 20. The lower sealing film 40 is transparent. The transparent electrode of the transparent upper sealing film 30 is in contact with the water 60. According to the potential applied to the electrode 20 and the water contact electrode 30, the water 60 generates a contact angle in the fluoropolymer 10, and accordingly the curvature of the transparent oil 50 and the water 60 is reduced. Will be created. The radius of curvature changes according to the potential, and the focus changes. It is not necessarily a combination of water and oil alone, but a combination of two liquids with a difference in electrowetting degree. Since the lenses have different characteristics when manufactured and combined with each of the variable focus lenses, a manufacturing method of an array by a batch operation has been introduced. Creating electrodes on the inner surface of the through-holes of tens to hundreds of micrometers and constructing the polymer layer on the electrodes becomes very difficult, increasing the cost and decreasing the utilization of the variable focus lens array. In addition, the difficulty of constructing a transparent driving circuit for controlling the microlenses is an obstacle to commercialization.

An object of the present invention for solving the above problems is the microwetting electrowetting base material fibers and the control TFT array fiber, the condenser fiber, the conductive fiber for the source line, the electrode between the electrowetting layer and the first electrode sequentially uniformly stacked The insulating films for separation are arranged in accordance with the structure, the empty spaces are filled with epoxy or resin, and then hardened, sliced by the thickness of the lens in a direction orthogonal to the electrowetting base material fibers, the base material is removed, and the first fluid and The present invention provides a method of easily and precisely manufacturing a variable focus lens array in micro units by filling a second fluid and sealing it with a second electrode sheet.

In the variable focus lens array,

A lens array panel filling the empty spaces of components constituting the later variable focus lens array and curing to have a shape;

At least one cylindrical through hole configured in the frame;

An electrowetting polymer configured on the through hole surface;

An electrowetting electrode surrounding the electrowetting polymer;

At least one gate common driver fiber disposed to form an electrical contact with the electrowetting electrodes;

A source line fiber disposed in cross with the gate common driver fiber to supply an electrowetting driving power to the electrowetting electrode;

A power capacitor fiber in contact with the electrowetting electrode to store an electrowetting driving power;

An insulating sheet inserted to prevent unnecessary electrical contact between the fibers and the electrode;

A transparent sealing sheet for sealing the first surface of the frame;

A first fluid filled in the through hole;

A second fluid filled in the through hole;

A transparent electrode sealing sheet sealing the second surface of the frame and having a transparent electrode in contact with the first fluid; The object of the present invention can be achieved by a variable focus lens array. It is particularly convenient to manufacture and handle micro size lenses.

In the manufacturing method,

Applying an electrowetting polymer to the wool fibers 130 having a circular cross section, and preparing an electrowetting base material fiber by coating an electrode thereon;

Preparing a driver ribbon;

Preparing a condenser ribbon;

Preparing a conductive fiber coated with an electrically insulating layer and having only a contact generating portion exposed the conductive layer;

Arranging the electrowetting base material fibers in order;

Inserting the driver ribbon in one direction between the arranged electrowetting base material fibers;

Inserting the conductive fiber between the arranged electrowetting base material fibers to intersect the driver ribbon with an insertion direction;

Inserting the condenser ribbon between the arranged electrowetting base material fibers to intersect the driver ribbon with an insertion direction;

Forming a grid for spacing between the arranged electrowetting base material fibers;

Continuously stacking a driver ribbon, a conductive fiber, a condenser ribbon, and a spacer grid in order;

After the lamination to the required length to fill the internal empty space with epoxy or resin to harden to produce a lens array base material;

Making a lens array panel by cutting the lens array base material according to the gap grid;

Removing the wool fibers 130 from the lens array panel to generate through holes exposed to the surface of the electrowetting polymer;

Encapsulating the first plane of the lens array panel with a transparent sealing sheet;

Filling a first fluid and a second fluid into the through holes of the lens array panel;

Encapsulating the second plane of the lens array panel with a transparent sealing sheet having a transparent electrode; It is possible to manufacture a variable focus lens array.

According to the manufacturing method of the present invention, a micro-sized variable focus lens array or a variable tilt angle prism can be manufactured without using a large-scale deposition apparatus or a sputtering apparatus. The continuous process enables the production of low-cost variable focus lens arrays or variable tilt angle prisms, allowing for numerous applications. Utilizing the present invention, it is possible to configure an autostereoscopic 3D display in combination with a display, and can be applied to laser processing, high performance endoscope, confocal microscope, and high performance optical signal processing.

1 is an explanatory view of the principle of the variable focus liquid lens used in the present invention.
2 is a block diagram of a driver fiber constituting the present invention.
Figure 3 is a block diagram of the electrowetting base material fibers that are the basic elements of the present invention.
4 is a conceptual view illustrating the configuration of the variable lens array of the present invention.
Fig. 5 is a sectional view of the condenser fiber constituting the present invention.
6 is a perspective view of a manufacturing process of the variable lens array of the present invention.
7 is a perspective view of a configuration of a variable lens array of the present invention.
8 is a complete view of the variable lens array of the present invention.
9 is a block diagram of an electrowetting square base material fiber that is a basic element of the present invention.
10 is a coupling diagram of the variable prism array of the present invention.
11 is a complete view of the variable prism array of the present invention.

In the process of describing the present invention, it is meant that the ribbon is narrow in width and considerably long in the longitudinal direction. It also means "stripes" and is sometimes called a film. It may also refer to a fiber having a flat cross section. In the present invention, they may be used interchangeably, but belong to the same class.

The present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram of a driver fiber constituting the present invention. TFTs common to the gates are arranged one-dimensionally on the ribbon. Descriptions of manufacturing methods, configurations or operations are described in the applicant's pre- filed invention. In the driver ribbon 200, the semiconductor layer is formed on one plane of the driver ribbon 200, and the other plane is an electrically insulated surface.

Figure 3 is a block diagram of the electrowetting base material fibers that are the basic elements of the present invention. A layer of the electrowetting polymer 110 is produced in the wool fibers 130. The electrowetting polymer 110 is preferably a fluoropolymer. The electrowetting polymer 110 may be uniformly coated by a dip coating method. It is also possible to deposit and coat. The electrowetting electrode 120 is formed on the layer of the electrowetting polymer 110 to form the electrowetting base material fiber 150. The electrowetting electrode 120 does not have to be a transparent electrode. It can produce | generate by vapor deposition and sputtering. Dip coating into conductive ink and producing by heat treatment are simple in terms of production process. In the step of making the panel, the hair fibers 130 must be removed. In order to facilitate removal, the hair fiber 130 should be easily dissolved in the solvent. The electrowetting polymer 110 should not melt in the solvent. The method of treatment without melting is to use the electrowetting polymer (110) tube without using the parent fiber (130).

In another method, a release material layer is formed on the wool fibers 130, and the electrowetting polymer 110 is dip coated. The release material layer plays a role in which the wool fibers 130 are easily separated from the wettable polymer 110.

4 is a conceptual view illustrating the configuration of the variable lens array of the present invention. The electrowetting electrode 120 of the electrowetting variable focus lens 100 is in contact with the semiconductor layer 200 of the gate common driver bone 200. The source line fibers 210 are in contact with the semiconductor layer 200 of the gate common driver bone 200. The source line fibers 210 should be separated at a constant distance so as not to contact the electrowetting electrode 120. It is preferable to generate a drain electrode 203 and a source electrode 204 in advance in the semiconductor layer 200 of the gate common driver bone 200 to have a stable contact. The condenser fiber 230 is in contact with the electrowetting electrode 120 of the electrowetting variable focus lens 100 to maintain the driving potential of the electrowetting variable focus lens 100. As shown in FIG. 5, the condenser fiber 230 has a ribbon shape, and the electrodeless surface is spatially in contact with and electrically insulated from the electrowetting electrode 120 of another electrowetting variable focal lens 100 in close proximity. Enable placement. The independent electrode 234 of the condenser ribbon 230 contacts the electrowetting electrode 120 of the electrowetting variable focus lens 100 and stores the electrowetting potential in the dielectric 233 together with the common electrode 232. The arrangement position of the condenser ribbon 230 is not an important variable. While the driver ribbon 200 is in contact with the electrowetting variable focus lens 100, the wet separation variable focus lenses 100 are spatially separated in one direction, and the condenser fiber 230 is the electrowetting variable focus lens in another direction. It is preferable to arrange the 100 to cross each other, so as to make a spatial separation.

Referring to the operation principle, when an electric signal is applied to the gate of the gate common driver 200, the semiconductor 202 layers included in the gate common driver 200 are activated, and the electrowetting driving potential prepared in the source line fiber 210. Is transferred to the electrowetting electrodes 120 of all the electrowetting variable focus lenses 100 connected to the gate common driver 200. This potential is stored in the dielectric 233 through the independent electrode 234 of the condenser fiber 230. The electric signal of the gate of the gate common driver 200 is turned off, and a driving signal is given to the gate of another gate common driver 200. Iteratively repeats to drive all the electrowetting variable focus lens 100.

Each of the manufactured electrowetting variable focusing lenses 100 may not be regarded as having the same characteristics. The electrowetting variable focus lens 100 according to the present invention may all be driven separately. Measurement of refractive index error by lens is made to generate calibration data, and the driving potential is corrected at the time of driving.

6 is a perspective view of a manufacturing process of the variable lens array of the present invention. The prepared lens ribbon 200, the electro-wetting base material fiber 150, the condenser fiber 230, the source line fiber 210 to produce a lens array base material. The source line fibers 210 may coat the conductive fibers with an insulating layer, and expose only portions to be in contact with the driver ribbon 200.

When manufacturing the electrowetting variable focus lens 100 having an array of horizontal M and vertical N, the electrowetting base material fibers 150 are arranged in M rows and N rows. The electrowetting base material fibers 150 are arranged from top to bottom, and M driver ribbons 200 are interposed between the electrowetting base material fibers 150 in the transverse direction. It is preferable to put at the same time. In the next process, N source line fibers 210 enter between the electrowetting base material fibers 150 in the longitudinal direction. It is preferable to put at the same time. In the next process, N capacitor ribbons 230 enter between the electrowetting base material fibers 150 in the longitudinal direction. It is preferable to put at the same time. Adjust for good electrical contact. In order to adjust the space | interval, it is preferable to put the insulating spacer in grid | lattice form. Driver ribbon (200)-> source line fibers (210)-> capacitor ribbon (230)-> grid plate in order to insert repeatedly). It is placed in an external mold, filled with epoxy or resin, and then cured to produce a lens array substrate.

7 is a perspective view of a configuration of a variable lens array of the present invention. The lens array base material is cut to fit the gap grid to form the lens array panel 270. The hair fiber 130 is removed from the lens array panel 270 to generate a through hole 140 to which the electrowetting polymer surface 110 is exposed. As a method of generating the through hole 140, a solvent in which only the wool fibers 130 are dissolved may be used. During the selection of the wool fibers 130, it is necessary to select a material that melts only the wool fibers in the solvent and does not melt the electrowetting polymer layer. Another method of removing the hair fiber 130 is to pull out the hair fiber 130 before cutting to fit the gap grid. There is a release material between the wool fibers 130 and the surface of the electrowetting polymer 110 to be separated and pulled out. Another method is to use an electrowetting polymer tube in the process of preparing the electrowetting base material fiber 150, and to coat the electrode 120 on its outer surface.

8 is a complete view of the variable lens array of the present invention. The first plane of the lens array panel 270 is sealed with the transparent sealing sheet 250. In the figure, the bottom face is defined as the first plane. Epoxy may be used to seal. The first fluid and the second fluid are filled in the through hole 140 of the lens array panel 270. Dosing should be done in the correct proportions so that the characteristics of the lenses are constant. The first fluid may be water, and the second fluid may be oil. The greater the difference in electrowetting ability between the first fluid and the second fluid, the better.

Next, the second plane (upper part) of the lens array panel 270 is sealed with a transparent sealing sheet 260 having a transparent electrode. The transparent electrode is in contact with the first fluid and should not be in contact with the electrowetting electrode 120 of the electrowetting variable focus lens 100. In the sealing process, the sealing material is covered on the electrowetting electrode 120 so that the sealing material is not in contact with the electrode of the transparent sealing sheet 260.

9 is a block diagram of an electrowetting square base material fiber that is a basic element of the present invention. A layer of electrowetting polymers 330 and 335 is formed in the square hair fibers 305. Electrowetting polymers 330 and 335 are preferably fluoropolymers. The electrowetting polymers 330 and 335 may be uniformly coated by a dip coating method. It is also possible to deposit and coat. Electrowetting electrodes 320 and 325 are formed on the electrowetting polymer layers 330 and 335 to form the electrowetting square base material fibers 350. The electrowetting electrodes 320 and 325 need not be transparent electrodes. It can produce | generate by vapor deposition and sputtering. Dip coating into conductive ink and producing by heat treatment are simple in terms of production process. The variable inclination angle prism can be configured by adjusting the electric wettability of two opposite surfaces to a potential. Unnecessary two sides should be removed. In the step of making the panel, the hair fibers 130 must be removed.

Another method of making the electrowetting square base material fiber 350 is a method of producing a polymer and an electrode on both sides of a wide sheet and cutting it into a ribbon in a required width. It can be cut with a laser or cut with a mechanical cutter.

Square hair fibers 305 should be easily dissolved in the solvent. The electrowetting polymers 330 and 335 should not melt in the solvent. In another method, a release layer is formed on the square hair fibers 305, and the wet coating polymers 330 and 335 are dip coated. The release material layer serves to allow the wool fibers 305 to be easily separated from the wettable polymers 330 and 335.

10 is a coupling diagram of the variable prism array of the present invention. The first electrowetting electrode 320 of the electrowetting prism 300 is in contact with the semiconductor layer of the first drivebone 400. The second electrowetting electrode 325 of the electrowetting prism 300 is in contact with the semiconductor layer of the second driver bone 405. As shown in (b), the condenser fiber 430 is parallel to the second driver bone 405 and disposed so that the independent electrode contacts the second electrowetting electrode 325. As the source line fibers 410 are in contact with the semiconductor layers of the driver ribbons 400 and 405, they are arranged to cross the driver ribbons 400 and 405. The first drivebone 400 and the second drivebone 405 are not in electrical contact. Surfaces without semiconductor layers are in contact with each other because they are not in contact with each other. It is also possible to use spacers for spatial separation of the transverse planes.

11 is a complete view of the variable prism array of the present invention. Describe the manufacturing process. A prism array base material is produced using the prepared driver ribbons 400 and 405, the electrowetting square base material fiber 350, the condenser fiber 430, and the source line fiber 410. The source line fibers 410 may coat the conductive fibers with an insulating layer, and expose only portions to be in contact with the driver ribbons 400 and 405.

When manufacturing the electrowetting value-changing square prism 300 having an array of horizontal M and vertical N, the electrowetting square base material fibers 305 are arranged in M rows and N rows. The electrowetting square base fibers 305 are arranged from top to bottom, and M first driver bones 300 and M first driver bones 300 in the horizontal direction are interposed between the electrowetting square base fibers 305. Enter It is preferable to put at the same time. In the next process, N source line fibers 410 enter between the electrowetting square base fibers 305 in the longitudinal direction. It is preferable to put at the same time. In the next process, N first capacitor ribbons 430 and N second capacitor ribbons (not shown) enter between the electrowetting square base material fibers 305 in the longitudinal direction. It is preferable to put at the same time. Adjust for good electrical contact. In order to adjust the space | interval, it is preferable to put the insulating spacer in grid | lattice form. Driver ribbon (400, 405)-> Source line fibers (410)-> Condenser ribbon (430)-> Repeatedly inserted in the order of the grid. It is placed in an external mold, filled with epoxy or resin, and then cured to produce a lens array substrate.

The prism array base material is cut out according to the gap grid to form a prism array panel 340. The square wool fibers 305 are removed from the prism array panel 340 to generate the through holes 300 to which the electrowetting polymer surfaces 330 and 335 are exposed. As a method of generating the through hole 300, a solvent in which only the square hair fibers 305 are dissolved may be used. When selecting the square wool fibers 305, it is necessary to select a material that melts only the wool fibers in the solvent and does not melt the electrowetting polymer layer. Another method of removing the square hair fibers 305 is to pull out the square hair fibers 305 before cutting them to the spacing grid. There is a release material between the square hair fibers 305 and the surface of the electrowetting polymer 330, 335 to be separated out.

The first plane of the prism array panel 340 is sealed with the transparent sealing sheet 350. In the figure, the bottom face is defined as the first plane. Epoxy may be used to seal. The first fluid and the second fluid are filled in the through hole 300 of the prism array panel 340. Prism must be injected at the correct rate to ensure that the prisms are uniform. The first fluid may be water, and the second fluid may be oil. The greater the difference in electrowetting ability between the first fluid and the second fluid, the better.

Next, the second plane (upper part) of the prism array panel 340 is sealed with a transparent sealing sheet 360 having a transparent electrode. The transparent electrode is in contact with the first fluid and should not be in contact with the electrowetting electrodes 330 and 335 of the electrowetting value changing prism 300. In the sealing process, the sealing material is covered on the electrowetting electrodes 330 and 335 so as not to contact the electrodes of the transparent sealing sheet 360.

As described above, the present invention has been described with reference to particular embodiments, such as specific elements, and specific embodiments and drawings. However, it should be understood that the present invention is not limited to the above- And various modifications and changes may be made thereto by those skilled in the art to which the present invention pertains. Therefore, the spirit of the present invention should not be construed as being limited to the described embodiments, and all of the equivalents or equivalents of the claims, as well as the following claims, are included in the scope of the present invention.

100: electrowetting variable focus lens 110: electrowetting polymer
120: electrowetting electrode 130: wool fiber
140: through hole 150: electro-wetting base material fiber
200: driver fiber 201: gate insulating layer
202 semiconductor 203 drain electrode
204: source electrode 210: source line fiber
230: condenser fiber 231: insulated ribbon
232: common electrode 233: dielectric
234: independent electrode
270 lens array panel 250 transparent sealing sheet
260: transparent electrode sealing sheet
300: electrowetting prism 305: square hair fiber
310: first driver fiber 315: second driver fiber
330: first electrowetting polymer 335: second electrowetting polymer
320: first electrowetting electrode 325: second electrowetting electrode
350: electrowetting square base fiber
340: Prism array panel 350: transparent transparent sealing sheet
360: transparent electrode sealing sheet

Claims (12)

In the variable focus lens array,
A lens array panel composed of epoxy or resin which fills the empty space of components constituting the later variable focus lens array and is cured to have a shape;
At least one cylindrical through hole configured in the lens array panel;
An electrowetting polymer configured on the through hole surface;
An electrowetting electrode surrounding the electrowetting polymer;
At least one gate common drybone disposed to form an electrical contact with the electrowetting electrodes;
A source line fiber disposed in cross with the gate common driver fiber to supply an electrowetting driving power to the electrowetting electrode;
A condenser ribbon in contact with the electrowetting electrode to store an electrowetting driving power source;
A lower transparent sealing sheet for sealing the bottom of the frame;
A first fluid filled in the through hole;
A second fluid filled in the through hole;
An upper transparent electrode sealing sheet sealing a top surface of the frame and having a transparent electrode in contact with the first fluid; Variable focus lens array The variable focus lens array of claim 1, wherein the lens array panel is transparent. The variable focus lens array of claim 1, wherein the lens array panel is flexible. In the preparation of the electrowetting type variable focus lens array
Applying an electrowetting polymer to the wool fibers 130 having a circular cross section, and preparing an electrowetting base material fiber by coating an electrode thereon;
Preparing a driver ribbon;
Preparing a condenser ribbon;
Preparing a conductive fiber coated with an electrically insulating layer and having only a contact generating portion exposed the conductive layer;
Arranging the electrowetting base material fibers in order;
Inserting the driver ribbon in one direction between the arranged electrowetting base material fibers;
Inserting the conductive fiber between the arranged electrowetting base material fibers to intersect the driver ribbon with an insertion direction;
Inserting the condenser ribbon between the arranged electrowetting base material fibers to intersect the driver ribbon with an insertion direction;
Forming a grid for spacing between the arranged electrowetting base material fibers;
Continuously stacking a driver ribbon, a conductive fiber, a condenser ribbon, and a spacer grid in order;
After the lamination to the required length to fill the internal empty space with epoxy or resin to harden to produce a lens array base material;
Making a lens array panel by cutting the lens array base material according to the gap grid;
Removing the wool fibers 130 from the lens array panel to generate through holes exposed to the surface of the electrowetting polymer;
Encapsulating the first plane of the lens array panel with a transparent sealing sheet;
Filling a first fluid and a second fluid into the through holes of the lens array panel;
Encapsulating the second plane of the lens array panel with a transparent sealing sheet having a transparent electrode; Method for manufacturing a variable focus lens array 5. The method of claim 4, wherein the method of removing the hair fibers 130 in the step of generating the through holes exposed to the surface of the electrowetting polymer on the lens array panel comprises using a solvent for melting the hair fibers 130. Way The method of manufacturing a variable focus lens array according to claim 6, wherein the method of removing the hair fibers 130 comprises extracting the hair fibers 130 before cutting them to fit the spacer grid. The method of manufacturing a variable focus lens array according to claim 4, wherein the preparing of the electrowetting base material fiber comprises using an electrowetting polymer tube and coating an electrode on an outer surface thereof. In the variable-square prism array,
A prism array panel that fills the empty spaces of the components constituting the late-changeable rectangular prism array and hardens to have a shape;
At least one square bar through hole formed in the prism array panel;
A first electrowetting polymer configured on the first surface of the through hole;
A second electrowetting polymer configured on a second surface facing the first surface of the through hole;
A first electrowetting electrode surrounding the first electrowetting polymer;
A second electrowetting electrode surrounding the second electrowetting polymer;
At least one first gate common driver fiber disposed in electrical contact with the first electrowetting electrodes;
At least one second gate common driver fiber disposed to form an electrical contact with the second electrowetting electrodes;
A source line fiber disposed in cross with the first gate common driver fiber and the second gate common driver fiber to supply an electrowetting driving power to the electrowetting electrode;
A first power capacitor fiber in contact with the first electrowetting electrode to store an electrowetting driving power;
A second power capacitor fiber in contact with the second electrowetting electrode to store an electrowetting driving power;
An insulating sheet inserted to prevent unnecessary electrical contact between the fibers and the electrode;
A transparent sealing sheet for sealing the first surface of the frame;
A first fluid filled in the through hole;
A second fluid filled in the through hole;
A transparent electrode sealing sheet sealing the second surface of the frame and having a transparent electrode in contact with the first fluid; Modular Square Prism Array In the preparation of the electrowetting type variable focus lens array
Preparing an electrowetting square base material fiber by applying an electrowetting polymer to the square wool fibers 130 having a rectangular cross section and coating electrodes on two opposite surfaces;
Preparing a driver ribbon;
Preparing a condenser ribbon;
Preparing a conductive fiber coated with an electrically insulating layer and having only a contact generating portion exposed the conductive layer;
Arranging the electrowetting square matrix fibers in order;
Inserting the first and second drive bones in one direction between the arranged electrowetting base material fibers;
Inserting the conductive fiber between the arranged electrowetting base material fibers to intersect the driver ribbon with an insertion direction;
Inserting the first condenser ribbon and the second condenser ribbon between the arranged electrowetting base material fibers to intersect the driver ribbon with an insertion direction;
Forming a grid for spacing between the arranged electrowetting base material fibers;
Continuously stacking a driver ribbon, a conductive fiber, a condenser ribbon, and a spacer grid in order;
After the lamination to the required length to fill the internal empty space with epoxy or resin to harden to produce a prism array base material;
Making a prism array panel by cutting the prism array base material according to the spacing grid;
Removing square hair fibers 305 from the prism array panel to generate through holes exposed to the surface of the electrowetting polymer;
Encapsulating the first plane of the prism array panel with a transparent sealing sheet;
Filling a first fluid and a second fluid into the through holes of the prism array panel;
Encapsulating the second plane of the prism array panel with a transparent sealing sheet having a transparent electrode; Modified rectangular prism array made of 10. The method of claim 9, wherein the method for removing the square hair fibers 305 in the step of generating a through hole exposed to the surface of the electrowetting polymer on the prism array panel comprises using a solvent for melting the square hair fibers 305. Array manufacturing method 10. The method of claim 9, wherein the method for removing the square hair fibers 305 comprises extracting the square hair fibers 305 before cutting them to the spacing grid. 10. The method of claim 9, wherein the preparing of the electrowetting base material fibers comprises the steps of preparing the electrowetting base material fibers by producing an electrowetting polymer and an electrode on both sides of a wide sheet and cutting the ribbon into a ribbon.
KR1020120026309A 2012-03-14 2012-03-14 Driver fiber, electorwetting lens array, electorwetting prism array, it's method of fabrication KR20130104647A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015083860A1 (en) * 2013-12-05 2015-06-11 국립대학법인 울산과학기술대학교 산학협력단 Method of manufacturing transparent electrode using electrospinning method, and transparent electrode formed using same
KR20150080886A (en) * 2014-01-02 2015-07-10 박순영 Vetical shape lighting device, and transparent lighting pannel made by thereof
KR20150123744A (en) * 2014-04-25 2015-11-04 한국과학기술원 Liquid injection method for multi-level liquid lens array
CN110850585A (en) * 2019-11-29 2020-02-28 京东方科技集团股份有限公司 Display panel, device and method, electrowetting microcavity unit and light control substrate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015083860A1 (en) * 2013-12-05 2015-06-11 국립대학법인 울산과학기술대학교 산학협력단 Method of manufacturing transparent electrode using electrospinning method, and transparent electrode formed using same
KR20150080886A (en) * 2014-01-02 2015-07-10 박순영 Vetical shape lighting device, and transparent lighting pannel made by thereof
KR20150123744A (en) * 2014-04-25 2015-11-04 한국과학기술원 Liquid injection method for multi-level liquid lens array
CN110850585A (en) * 2019-11-29 2020-02-28 京东方科技集团股份有限公司 Display panel, device and method, electrowetting microcavity unit and light control substrate

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