CN106842552B - One kind can realize the adjustable color filtering mean of colour filter wavelength dynamic in wide spectral range - Google Patents
One kind can realize the adjustable color filtering mean of colour filter wavelength dynamic in wide spectral range Download PDFInfo
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- CN106842552B CN106842552B CN201710055462.7A CN201710055462A CN106842552B CN 106842552 B CN106842552 B CN 106842552B CN 201710055462 A CN201710055462 A CN 201710055462A CN 106842552 B CN106842552 B CN 106842552B
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- metal nanoparticle
- phase fluid
- colour filter
- spectral range
- wide spectral
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- 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
- G02B26/005—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 based on electrowetting
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Optical Filters (AREA)
Abstract
The invention discloses one kind, and the adjustable color filtering mean of colour filter wavelength dynamic, circular cylindrical cavity can be realized in wide spectral range；And oily phase fluid, water phase fluid and the metal nanoparticle for being uniformly distributed in water-oil phase fluid boundary in this cavity.Wherein cylindrical cavity body sidewall and bottom are respectively set there are two absolute electrode, and water phase fluid can be adjusted by electrowetting principle in the imbibition characteristic of sidewall surfaces, thus realize to oil-water two-phase interfaces curvature it is quick, adjustment can be replied.In addition, periodic arrangement is presented in metal nanoparticle distribution, desired color is exported by the light using surface plasma selective transmission specific wavelength.Since transmission peak wavelength is influenced by metal nanoparticle array arrangement density, quick, recoverable dynamic can be carried out to metal nanoparticle array arrangement density and adjusted, to realize the corresponding adjustment of exported color by electrowetting principle.
Description
Technical field
The present invention relates to one kind, and the adjustable color filtering mean of colour filter wavelength dynamic can be realized in wide spectral range.
Background technique
The appearance of novel frivolous portable light electrocomponent technology, such as flat panel display produce conventional information transmission field
Far-reaching influence is given birth to, it is more reliable and more stable that device architecture can become more frivolous, device performance, have and more importantly grind
Study carefully value and Commercial Prospect.
Wherein, LCD panel part is a Typical Representative, has excellent resolution ratio, color rendering properties and picture
Quality.And color filtering mean is to constitute color LCD to show a very important component.
Traditional color filtering mean is made of multiple for realizing red, green and blue (RGB) sub-filter, each
The color that sub-filter can be generated be it is determining, will not change with different demands.Therefore in order to realize complicated color
Colour display screen shows, it usually needs by complicated colour mixture technology, such as spacing color mixed, time mixing color etc..
Meanwhile each sub-filter is manufactured using complicated technique, which weighs according to each color
Carry out again photoresist coating, exposure, development and hardening process, and for colour filter processing production line generally require with
Production line for other component processing separates, this largely increases production line cost.
In addition, the transmissivity of such colour filter is lower, the transmission intensity of extreme influence backlight, to reduce device effect
Rate.Although engineers and technicians propose to substitute conventional color filters by surface plasma to improve transmissivity, these tables
Surface plasma technology is all based on specific metal-layer structure, once processing preparation is completed, the color that can be generated is also by only
One decides, and cannot achieve dynamic and mixes colours.
Summary of the invention
Goal of the invention: being directed to the above-mentioned prior art, is based on surface plasma body technique, proposes that one kind can be in wide spectral range
The adjustable color filtering mean of interior realization colour filter wavelength dynamic.
Technical solution: one kind can realize the adjustable color filtering mean of colour filter wavelength dynamic, including one in wide spectral range
Circular cylindrical cavity with electrowetting function, and oily phase fluid in this cavity, water phase fluid and it is uniformly distributed in oil
The metal nanoparticle at water two-phase fluid interface；Array arrangement is presented in the metal nanoparticle distribution, by utilizing surface etc.
The light of gas ions selective transmission specific wavelength exports particular color；It is applied simultaneously by adjusting electrowetting function alive
Size carries out dynamic adjustment to metal nanoparticle array arrangement density, realizes the adjustment of exported color.
Further, the inner sidewall of the circular cylindrical cavity with electrowetting function and bottom are respectively arranged with independence
The absolute electrode surface of electrode, the inner sidewall is covered with hydrophobic dielectric layer.
Further, the hydrophobic dielectric layer is made of single layer of hydrophobic material or covers hydrophobic material by dielectric material surface
It constitutes.
Further, the metal nanoparticle passes through the modification of surface hydrophilic, hydrophobic function group's, realizes triangular lattice
Arrangement.
Further, the size of each particle is consistent in metal nanoparticle array.
Further, the oily phase fluid is water-insoluble non-polar fluid, and water phase fluid is non-oil-soluble polarity
Fluid.
Further, the metal nanoparticle is formed by conductive material, and the conductive material includes aluminium, gold, silver, zinc,
Molybdenum, platinum, nickel, palladium, iron, copper, chromium, carbon nanotube, doped semiconductor device, conductive plastics, fullerene, and conductive composite wood
At least one of or mixtures thereof material,.
The utility model has the advantages that one kind of the invention can realize the adjustable color filtering mean of colour filter wavelength dynamic in wide spectral range,
Water phase fluid can be adjusted by electrowetting principle in the imbibition characteristic of sidewall surfaces, to realize to oil-water two-phase interfaces song
Rate it is quick, adjustment can be replied.In addition, periodic arrangement is presented in metal nanoparticle distribution, by being selected using surface plasma
Selecting property transmits the light of specific wavelength to export desired color.Since transmission peak wavelength is close by metal nanoparticle array arrangement
The influence of degree, therefore metal nanoparticle array arrangement density can be carried out quick, recoverable dynamic by electrowetting principle
State adjustment realizes that colour filter light wave is quick in wide spectral range, can reply adjustment.
Detailed description of the invention
Fig. 1 is the overall structure axial cross-sectional views of color filtering mean of the present invention；
Fig. 2 is the decomposition texture schematic diagram of color filtering mean of the present invention.
Specific embodiment
Further explanation is done to the present invention with reference to the accompanying drawing.
As shown in Figure 1, 2, one kind can realize the adjustable color filtering mean of colour filter wavelength dynamic in wide spectral range, include
One circular cylindrical cavity 10 with electrowetting function, and oily phase fluid 20, water phase fluid in the circular cylindrical cavity 10
30 and it is uniformly distributed in the metal nanoparticle 40 of water-oil phase fluid boundary.Oily phase fluid 20 is any water-insoluble
Non-polar fluid；Water phase fluid 30 is any non-oil-soluble polar fluid.The height of water phase fluid is greater than circular cylindrical cavity
Radius.Array arrangement is presented in the distribution of metal nanoparticle 40, by utilizing surface plasma selective transmission specific wavelength
Light exports desired particular color.Alive size is applied by adjusting electrowetting function simultaneously, to metal nano
40 arrangement density of grain carries out quick, recoverable dynamic adjustment, to realize the corresponding adjustment of exported color.
Specifically, the inner sidewall 11 of circular cylindrical cavity 10 and bottom 12 are respectively arranged with absolute electrode 13 and absolute electrode
14, the electrode of circular cylindrical cavity inner sidewall is annular electrode, the oil-water two-phase interfaces and ring that oily phase fluid and aqueous phase stream body are formed
The axially symmetric face of shape electrode is generally aligned in the same plane.The annular electrode surface of inner sidewall is covered with one layer of hydrophobic dielectric layer 15, should
Hydrophobic dielectric layer 15 is made of single layer of hydrophobic material or is made of dielectric material surface covering hydrophobic material.The independent electrical of bottom
Pole 13 can have any shape, and be preferably arranged on 12 central location of bottom.Hydrophobic material includes fluoropolymer, such as Teflon
Dragon；And dielectric material includes silica, silicon nitride, polydimethylsiloxane, SU-8 etc. is all kinds of organic or inorganic material
Expect film.
Metal nanoparticle 40 has a generally triangular shape lattice arrangement, and the size of each particle is consistent.Metal nano
Grain 40 is formed by conductive material, and conductive material includes aluminium Al, golden Au, silver-colored Ag, zinc Zn, molybdenum Mo, platinum Pt, nickel, palladium Pd, iron Fe,
Or mixtures thereof copper Cu, chromium Cr, carbon nanotube, doped semiconductor device, conductive plastics, fullerene and conducing composite material,
At least one of.
By applying voltage between absolute electrode 13 and absolute electrode 14, under electrowetting effect effect, water phase fluid
30 contact on 15 surface of hydrophobic dielectric layer can reduce, and the reduction amplitude of contact angle and the voltage value applied are at just
It is related.In no applied voltage, water phase fluid 30 15 surface of hydrophobic dielectric layer contact angle close to 180 °, grease two at this time
Phase interface raises upward slightly；With the increase of voltage, contact angle of the water phase fluid 30 on 15 surface of hydrophobic dielectric layer gradually subtracts
Small, oil-water two-phase interfaces raise upward and can be gradually reduced slightly from initial, become a plane, continue to voltage, grease
Two-phase interface can be past recessed.Contact angle of the water phase fluid 30 on 15 surface of hydrophobic dielectric layer can be gradually decreased to 90 °, grease two
Phase interface can spill be at hemisphere face down, and the area of oil-water two-phase interfaces is maximum at this time, and maximum area is the 2 of minimum area
Times, correspondingly, equidistant variation, gold occur for metal nanoparticle triangular lattice three side lengths under electrowetting effect effect
The largest interval of metal nano-particle 40 is 1.4 times or so of minimum interval.Variation occurred at intervals when metal nanoparticle 40, lead to
The wavelength for crossing surface plasma transmission can also occur to change accordingly.
We can by parameters such as the types that selects oily phase fluid 20, water phase fluid 30 and metal nanoparticle 40,
On the basis of 1.4 times of adjustment are realized at interval, the adjusting of wide spectrum is realized.At the same time, since electrowetting effect is that pure electricity drives
It is dynamic, and fluid deformation reaction speed is quickly, and 50 times per second or more adjustings may be implemented, therefore has and realize dynamic regulation colour filter
The function of wavelength is suitable for video color display application.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (6)
1. one kind can realize the adjustable color filtering mean of colour filter wavelength dynamic in wide spectral range, it is characterised in that: including one
Circular cylindrical cavity with electrowetting function, and oily phase fluid in this cavity, water phase fluid and it is uniformly distributed in oil
The metal nanoparticle at water two-phase fluid interface；Array arrangement is presented in the metal nanoparticle distribution, by utilizing surface etc.
The light of gas ions selective transmission specific wavelength exports particular color；It is applied simultaneously by adjusting electrowetting function alive
Size carries out dynamic adjustment to metal nanoparticle array arrangement density, realizes the adjustment of exported color；The metal
Nano particle passes through the modification of surface hydrophilic, hydrophobic function group's, realizes triangular lattice arrangement.
2. according to claim 1 can realize the adjustable color filtering mean of colour filter wavelength dynamic, spy in wide spectral range
Sign is: the inner sidewall of the circular cylindrical cavity with electrowetting function and bottom are respectively arranged with absolute electrode, described
The absolute electrode surface of inner sidewall is covered with hydrophobic dielectric layer.
3. according to claim 2 can realize the adjustable color filtering mean of colour filter wavelength dynamic, spy in wide spectral range
Sign is: the hydrophobic dielectric layer is made of single layer of hydrophobic material or is made of dielectric material surface covering hydrophobic material.
4. according to claim 1 can realize the adjustable color filtering mean of colour filter wavelength dynamic, spy in wide spectral range
Sign is: the size of each particle is consistent in metal nanoparticle array.
5. according to claim 1 can realize the adjustable color filtering mean of colour filter wavelength dynamic, spy in wide spectral range
Sign is: the oil phase fluid is water-insoluble non-polar fluid, and water phase fluid is non-oil-soluble polar fluid.
6. according to claim 1 can realize the adjustable color filtering mean of colour filter wavelength dynamic, spy in wide spectral range
Sign is: the metal nanoparticle is formed by conductive material, and the conductive material includes aluminium, gold, silver, zinc, molybdenum, platinum, nickel,
Palladium, iron, copper, chromium, carbon nanotube, doped semiconductor device, conductive plastics, fullerene and conducing composite material or its mixing
At least one of object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710055462.7A CN106842552B (en) | 2017-01-25 | 2017-01-25 | One kind can realize the adjustable color filtering mean of colour filter wavelength dynamic in wide spectral range |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710055462.7A CN106842552B (en) | 2017-01-25 | 2017-01-25 | One kind can realize the adjustable color filtering mean of colour filter wavelength dynamic in wide spectral range |
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| CN106842552A CN106842552A (en) | 2017-06-13 |
| CN106842552B true CN106842552B (en) | 2019-02-01 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107065172B (en) * | 2017-05-08 | 2021-10-19 | 东南大学 | Wide spectrum display covering visible light to infrared wave band |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592759A (en) * | 2013-11-26 | 2014-02-19 | 上海交通大学 | Display device for driving liquid drops to move on basis of electrowetting effect |
| CN103760664A (en) * | 2014-01-02 | 2014-04-30 | 东南大学 | Light switch device capable of continuously adjusting luminous flux |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005103202A2 (en) * | 2004-03-31 | 2005-11-03 | Solaris Nanosciences, Inc. | Anisotropic nanoparticles and anisotropic nanostructures and pixels, displays and inks using them |
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- 2017-01-25 CN CN201710055462.7A patent/CN106842552B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592759A (en) * | 2013-11-26 | 2014-02-19 | 上海交通大学 | Display device for driving liquid drops to move on basis of electrowetting effect |
| CN103760664A (en) * | 2014-01-02 | 2014-04-30 | 东南大学 | Light switch device capable of continuously adjusting luminous flux |
Non-Patent Citations (1)
| Title |
|---|
| LSPR properties of metal nanoparticles adsorbed at a liquid-liquid interface;Zhilin Yang;《Phys.Chem.》;20131231;第15卷;5374-5378 |
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