CN103901607A - Variable optical hole liquid optical switch based on electrowetting effect - Google Patents
Variable optical hole liquid optical switch based on electrowetting effect Download PDFInfo
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- CN103901607A CN103901607A CN201410128499.4A CN201410128499A CN103901607A CN 103901607 A CN103901607 A CN 103901607A CN 201410128499 A CN201410128499 A CN 201410128499A CN 103901607 A CN103901607 A CN 103901607A
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- ito electrode
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- unthreaded hole
- moistening effect
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Abstract
The invention provides a variable optical hole liquid optical switch based on the electrowetting effect. The variable optical hole liquid optical switch comprises an upper substrate, a cavity, a dielectric layer, a drainage layer, a lower substrate, an ITO electrode A, an ITO electrode B, an ITO electrode C, a light-through hole, a light barrier, a dyeing liquid droplet, a transparent dome cylinder and colorless clear liquid. The transparent dome cylinder is wrapped by the dyeing liquid droplet, the rest of space in the cavity is filled with the colorless clear liquid, the dyeing liquid droplet is conductive, the colorless clear liquid is not conductive, the three ITO electrodes are embedded in the lower substrate side by side, the distances between every two adjacent ITO electrodes are the same, the transparent dome cylinder is located over the ITO electrode B, the light-through hole is located under the ITO electrode B, and the diameter of the optical hole is the same as the diameter of the bottom face of the transparent dome cylinder. The optical hole can be variable through the liquid optical switch, and the gravity effect can be overcome.
Description
Technical field
The present invention relates to non-mechanical optical switch technology, more particularly, the present invention relates to a kind of variable unthreaded hole liquid optical switching technique based on the moistening effect of electricity.
Background technology
Photoswitch is the device that light signal is played to on-off action, and it has important application in fields such as communication and information demonstrations.The photoswitch of making based on solid-state components is current international main flow, but it still exists a lot of problems urgently to be resolved hurrily.For example, cost is high, and volume is large, has mechanical wear etc.The development of liquid photoswitch just in time provides a new thinking for addressing these problems.Liquid photoswitch is a kind of liquid device of modulating the incident light, is mainly used in the aspects such as optical attenuator, adjustable iris and information demonstration.The liquid photoswitch of especially variable unthreaded hole has huge application space as adjustable iris in imaging system.Known liquid photoswitch type of drive has Control of Voltage, microfluidic control, mechanical force control, the gentle pressure-controlled of heating power control etc. at present.Wherein Control of Voltage is the most practical and has the type of drive of application prospect most.Dielectric stress effect and electric moistening effect are that voltage drives two kinds of dominant mechanisms controlling.Liquid photoswitch response based on dielectric stress effect is fast, operating voltage is low, but because dielectric power itself is fainter, this size that has just limited the liquid photoswitch based on dielectric stress effect is in micron dimension, and light intensity ratio is lower, all in 100:1.And photoswitch based on the moistening effect of electricity has contrast high, the advantage such as attenuation range is wide, and the response time is fast.Therefore, realize the liquid photoswitch based on the moistening effect of electricity, significant in actual applications.
Summary of the invention
The present invention proposes a kind of variable unthreaded hole liquid photoswitch based on the moistening effect of electricity, as shown in Figure 1, comprising: upper substrate, cavity, dielectric layer, hydrophobic layer, infrabasal plate, ITO electrode A, ITO electrode B, ITO electrode C, light hole, light barrier, dyeing drop, transparent dome cylinder, colourless transparent liquid; Transparent dome cylinder is colored drop parcel, in cavity, remaining space is filled by colourless transparent liquid, the drop that wherein dyes conduction, colourless transparent liquid is non-conductive, three ITO electrodes embed infrabasal plate side by side, and between two spacing equate, transparent dome cylinder be positioned at ITO electrode B directly over, light hole be positioned at ITO electrode B under, unthreaded hole diameter is identical with the bottom surface diameter of transparent dome cylinder.
As shown in Figure 1, in the time of original state, transparent dome cylinder is immersed in dyeing drop completely, and now, light hole is colored drop and blocks, and liquid switch is in light off status.By ITO electrode B ground connection, impressed voltage U after ITO electrode A and ITO electrode C are communicated with, dyeing drop, due to the moistening effect of electricity, can produce deformation, as shown in Figure 2.Now, transparent dome cylinder leans out from dyeing drop, forms an optical channel, and liquid switch switches to light and opens state.Along with impressed voltage increases gradually, the part that transparent dome cylinder leans out also can increase, thereby realizes the light switch function of variable unthreaded hole.
Preferably, three ITO electrode lengths are identical, long
d 1>=13mm and
d 1≤ 15mm, ITO electrode A is identical with the width of ITO electrode C, wide
d 2>=6mm and
d 2≤ 8mm, the width of ITO electrode B
d 3>=3mm and
d 3≤ 4mm, three ITO electrode intervals between two, and spacing is identical, spacing
d 4>=0.15mm and
d 4≤ 0.25mm.
Preferably, cavity is long
d 5>=12mm and
d 5≤
d 1, wide
d 6=2
d 2+
d 3+ 2
d 4, height
d 7>=8mm and
d 7≤ 10mm.
Preferably, upper and lower base plate is measure-alike, long
d 8=
d 1, wide
d 9>
d 6and
d 9≤ 20mm.
Preferably, the diameter of transparent dome cylinder
d 10>=3.2mm and
d 10≤ 3.4mm, highly
d 11>=1.5mm and
d 11≤ 1.7mm.
Preferably, dyeing liquid-drop diameter
d 12>=4.5mm and
d 12≤ 5mm.
Preferably, light barrier is long
d 13=
d 8, wide
d 14=
d 9, light hole diameter
d 15=
d 10.
Preferably, in cavity, colourless transparent liquid is identical with the density of dyeing drop.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of light off status schematic diagram of the variable unthreaded hole liquid photoswitch based on the moistening effect of electricity.
The light that accompanying drawing 2 is a kind of variable unthreaded hole liquid photoswitch based on the moistening effect of electricity is opened view.
Accompanying drawing 3 is the schematic diagram that in embodiment, optical attenuation degree changes with impressed voltage.
Shown by reference numeral in above-mentioned each accompanying drawing is:
1 upper substrate, 2 cavitys, 3 dielectric layers, 4 hydrophobic layers, 5 infrabasal plates, 6 ITO electrode A, 7 ITO electrode B, 8 ITO electrode C, 9 light holes, 10 light barriers, 11 dyeing drops, 12 transparent dome cylinders, 13 colourless transparent liquids.
Should be appreciated that above-mentioned accompanying drawing just schematically, not drafting in proportion.
Embodiment
The embodiment that describes a kind of variable unthreaded hole liquid photoswitch based on the moistening effect of electricity of the present invention's proposition below in detail, conducts further description the present invention.Be necessary to be pointed out that at this; following examples are only described further for the present invention; can not be interpreted as limiting the scope of the invention; this art skilled person makes some nonessential improvement and adjustment according to foregoing invention content to the present invention, still belongs to protection scope of the present invention.
One embodiment of the present of invention, this photoswitch comprises upper substrate, cavity, dielectric layer, hydrophobic layer, infrabasal plate, ITO electrode A, ITO electrode B, ITO electrode C, light hole, light barrier, dyeing drop, transparent dome cylinder, colourless transparent liquid.Described upper substrate, infrabasal plate and cavity are by PMMA(polymethylmethacrylate) material makes, upper and lower base plate consistent size, be 13mm × 18mm, cavity size is 12mm × 16mm × 8mm, ITO electrode A and ITO electrode C size are 13mm × 3mm, ITO electrode B is of a size of 13mm × 6mm, plate Parylene-C that one deck 1 μ m is thick as dielectric layer at three ITO electrode surfaces, then plate again Teflon that one deck 3 μ m are thick on the surface of ITO electrode A and ITO electrode C as hydrophobic layer.The bottom surface diameter of transparent dome cylinder is 3.2mm, is highly 4.5mm.The diameter of light hole is 3.2mm, and light barrier is of a size of 13mm × 18mm.Dyeing drop is that carbon ink and sodium chloride solution mix according to a certain percentage, and density is 1.20g/cm
3, colourless transparent liquid is optics liquid SL-5267, density is 1.20 g/cm
3.As shown in Figure 1, when original state, dyeing drop diameter is 6.8mm, and it wraps up transparent dome cylinder completely, and incident light is colored drop after by liquid device and absorbs completely, and now, liquid photoswitch is in "Off" state.As shown in Figure 2, by ITO electrode B ground connection, impressed voltage U after ITO electrode A and ITO electrode C are communicated with, under the effect of the moistening effect of electricity, dyeing drop radius-of-curvature can increase gradually, and the top of transparent dome cylinder will lean out dyeing drop, forms an optical channel with the colourless transparent liquid of filling around, now, liquid photoswitch is in "On" state.Along with executing alive variation, unthreaded hole diameter also changes within the specific limits.Remove after voltage, because dyeing drop is less than the attractive force between drop molecule with the surface tension between transparent dome cylinder, dyeing drop can automatically restore to initial configuration, and like this, liquid photoswitch has returned to again "Off" state.So far, this invention has realized a kind of variable unthreaded hole liquid photoswitch based on the moistening effect of electricity.
Claims (8)
1. the variable unthreaded hole liquid photoswitch based on the moistening effect of electricity, comprising: upper substrate, cavity, dielectric layer, hydrophobic layer, infrabasal plate, ITO electrode A, ITO electrode B, ITO electrode C, light hole, light barrier, dyeing drop, transparent dome cylinder, colourless transparent liquid; Transparent dome cylinder is colored drop parcel, in cavity, remaining space is filled by colourless transparent liquid, the drop that wherein dyes conduction, colourless transparent liquid is non-conductive, three ITO electrodes embed infrabasal plate side by side, and between two spacing equate, transparent dome cylinder be positioned at ITO electrode B directly over, light hole be positioned at ITO electrode B under, unthreaded hole diameter is identical with the bottom surface diameter of transparent dome cylinder.
2. a kind of variable unthreaded hole liquid photoswitch based on the moistening effect of electricity according to claim 1, is characterized in that, three ITO electrode lengths are identical, long
d 1>=13mm and
d 1≤ 15mm, ITO electrode A is identical with the width of ITO electrode C, wide
d 2>=6mm and
d 2≤ 8mm, the width of ITO electrode B
d 3>=3mm and
d 3≤ 4mm, three ITO electrode intervals between two, and spacing is identical, spacing
d 4>=0.15mm and
d 4≤ 0.25mm.
3. a kind of variable unthreaded hole liquid photoswitch based on the moistening effect of electricity according to claim 1, is characterized in that, cavity is long
d 5>=12mm and
d 5≤
d 1, wide
d 6=2
d 2+
d 3+ 2
d 4, height
d 7>=8mm and
d 7≤ 10mm.
4. a kind of variable unthreaded hole liquid photoswitch based on the moistening effect of electricity according to claim 1, is characterized in that, upper and lower base plate is measure-alike, long
d 8=
d 1, wide
d 9>
d 6and
d 9≤ 20mm.
5. a kind of variable unthreaded hole liquid photoswitch based on the moistening effect of electricity according to claim 1, is characterized in that the diameter of transparent dome cylinder
d 10>=3.2mm and
d 10≤ 3.4mm, highly
d 11>=1.5mm and
d 11≤ 1.7mm.
6. a kind of variable unthreaded hole liquid photoswitch based on the moistening effect of electricity according to claim 1, is characterized in that, dyeing liquid-drop diameter
d 12>=4.5mm and
d 12≤ 5mm.
7. a kind of variable unthreaded hole liquid photoswitch based on the moistening effect of electricity according to claim 1, is characterized in that, light barrier is long
d 13=
d 8, wide
d 14=
d 9, light hole diameter
d 15=
d 10.
8. a kind of variable unthreaded hole liquid photoswitch based on the moistening effect of electricity according to claim 1, is characterized in that, in cavity, colourless transparent liquid is identical with the density of dyeing drop.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410128499.4A CN103901607B (en) | 2014-04-02 | 2014-04-02 | A kind of variable unthreaded hole liquid light switch based on the moistening effect of electricity |
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| CN201410128499.4A CN103901607B (en) | 2014-04-02 | 2014-04-02 | A kind of variable unthreaded hole liquid light switch based on the moistening effect of electricity |
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| CN103901607A true CN103901607A (en) | 2014-07-02 |
| CN103901607B CN103901607B (en) | 2016-01-27 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508988A (en) * | 2014-10-15 | 2016-04-20 | 固安翌光科技有限公司 | Illumination lamp having dynamic display function |
| CN108663869A (en) * | 2018-05-17 | 2018-10-16 | 四川大学 | A kind of optofluidic lens of big zooming range |
| CN109151359A (en) * | 2018-09-11 | 2019-01-04 | 深圳市弘丰世纪科技有限公司 | A kind of novel portable recorder |
| CN110959130A (en) * | 2017-07-28 | 2020-04-03 | 弗劳恩霍夫应用研究促进协会 | MEMS mirror assembly and method for manufacturing a MEMS mirror assembly |
| WO2021103000A1 (en) * | 2019-11-29 | 2021-06-03 | 京东方科技集团股份有限公司 | Optical switch and control method therefor, and display device |
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| CN101852916A (en) * | 2010-06-01 | 2010-10-06 | 高婧 | Adjustable optical switch |
| US20110194165A1 (en) * | 2010-02-11 | 2011-08-11 | National Taiwan University | Electrical control light valve apparatus having liquid metal |
| CN103149680A (en) * | 2013-03-28 | 2013-06-12 | 四川大学 | Electrowetting-effect-based two-path liquid optical switch |
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2014
- 2014-04-02 CN CN201410128499.4A patent/CN103901607B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110194165A1 (en) * | 2010-02-11 | 2011-08-11 | National Taiwan University | Electrical control light valve apparatus having liquid metal |
| CN101852916A (en) * | 2010-06-01 | 2010-10-06 | 高婧 | Adjustable optical switch |
| CN103149680A (en) * | 2013-03-28 | 2013-06-12 | 四川大学 | Electrowetting-effect-based two-path liquid optical switch |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508988A (en) * | 2014-10-15 | 2016-04-20 | 固安翌光科技有限公司 | Illumination lamp having dynamic display function |
| CN110959130A (en) * | 2017-07-28 | 2020-04-03 | 弗劳恩霍夫应用研究促进协会 | MEMS mirror assembly and method for manufacturing a MEMS mirror assembly |
| CN110959130B (en) * | 2017-07-28 | 2022-08-16 | 弗劳恩霍夫应用研究促进协会 | MEMS mirror assembly and method for manufacturing a MEMS mirror assembly |
| CN108663869A (en) * | 2018-05-17 | 2018-10-16 | 四川大学 | A kind of optofluidic lens of big zooming range |
| CN109151359A (en) * | 2018-09-11 | 2019-01-04 | 深圳市弘丰世纪科技有限公司 | A kind of novel portable recorder |
| WO2021103000A1 (en) * | 2019-11-29 | 2021-06-03 | 京东方科技集团股份有限公司 | Optical switch and control method therefor, and display device |
| CN113272709A (en) * | 2019-11-29 | 2021-08-17 | 京东方科技集团股份有限公司 | Optical switch, control method thereof and display device |
| CN113272709B (en) * | 2019-11-29 | 2023-12-01 | 京东方科技集团股份有限公司 | Optical switch, control method thereof and display device |
| US11860501B2 (en) | 2019-11-29 | 2024-01-02 | Boe Technology Group Co., Ltd. | Optical switch and control method thereof, and display apparatus |
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