CN206920757U - The adjustable light modulation film of light transmission rate - Google Patents
The adjustable light modulation film of light transmission rate Download PDFInfo
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- CN206920757U CN206920757U CN201720801696.7U CN201720801696U CN206920757U CN 206920757 U CN206920757 U CN 206920757U CN 201720801696 U CN201720801696 U CN 201720801696U CN 206920757 U CN206920757 U CN 206920757U
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- refractive index
- light modulation
- light
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 9
- 239000002245 particle Substances 0.000 claims description 27
- 239000004973 liquid crystal related substance Substances 0.000 claims description 16
- 229920000642 polymer Polymers 0.000 claims description 11
- 239000011521 glass Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 4
- 238000007639 printing Methods 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 12
- 239000004408 titanium dioxide Substances 0.000 description 6
- 238000010304 firing Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 241000790917 Dioxys <bee> Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 210000004276 hyalin Anatomy 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
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- Liquid Crystal (AREA)
Abstract
The utility model provides a kind of adjustable light modulation film of light transmission rate.Light modulation film includes light modulation layer, the transparent conducting film being arranged in light modulation layer and the transparent high refractive index film being arranged on conducting film.The refractive index of high refractive index film is more than the refractive index of conducting film.The light modulation film of the utility model embodiment is under cold closed mode, because the refractive index of high refractive index film is much larger than the refractive index of air, the angle of emergence that light is emitted to air from high refractive index film becomes big (angle of emergence being directly emitted from conducting film relative to prior art).To sum up, by setting high refractive index film, the angle of emergence of beam projecting to air becomes big, it is easier to is totally reflected.Therefore, the absolute transmitance of light modulation film is lower, so as to strengthen the shielding of light modulation film.
Description
Technical field
It the utility model is related to the adjustable light modulation film of light transmission rate.
Background technology
It is relatively low that although existing light modulation film is in parallel transmitance under cold closed mode, absolute transmitance
Height, therefore can still understand thoroughly light modulation film close to observation, shielding is poor.
The content of the invention
It is contemplated that at least solves one of technical problem present in correlation technique.Therefore, the present invention provides a kind of light
The adjustable light modulation film of transmitance.The light modulation film of the utility model embodiment includes：
Light modulation layer；
The transparent conducting film being arranged in the light modulation layer；With
The transparent high refractive index film being arranged on the conducting film, the refractive index of the high refractive index film are more than described lead
The refractive index of electrolemma.
The light modulation film of the utility model embodiment is under cold closed mode, due to the folding of the high refractive index film
The refractive index that rate is much larger than air is penetrated, the angle of emergence that light is emitted to air from the high refractive index film becomes big (relative to existing
The angle of emergence that technology is directly emitted from conducting film).To sum up, by setting the high refractive index film, beam projecting to air goes out
Firing angle becomes big, it is easier to is totally reflected.Therefore, the absolute transmitance of the light modulation film is lower, so as to strengthen the light modulation film
Shielding.
In some embodiments, the refractive index of the light modulation layer is 1.4-1.6.
In some embodiments, the mixture that the light modulation layer includes liquid crystal particle and polymer particles are mixed to form,
Refringence between the liquid crystal particle and the polymer particles is 0.01.
In some embodiments, the refractive index of the conducting film is 1.4-1.5.
In some embodiments, the conducting film includes being separately positioned on the first conducting film in the light modulation layer and the
Two conducting films.
In some embodiments, the high refractive index film includes being separately positioned on first conducting film first high
The second high refractive index film on refractive index film and second conducting film.
In some embodiments, the refractive index of the high refractive index film is more than or equal to 2.55.
In some embodiments, the high refractive index film includes glass of high refractive index.
In some embodiments, the high refractive index film includes multilayer light-transmissive film, and the refractive index of a light-transmissive film is less than position
In the refractive index of two light-transmissive films of the light-transmissive film opposite sides.
In some embodiments, the refractive index of the light-transmissive film is distributed according to the sequence alternate of high level matches with low level.
Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description
In become obvious, or by it is of the present utility model practice recognize.
Brief description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage can retouch from reference to accompanying drawings below to embodiment
It will be apparent and be readily appreciated that in stating, wherein：
Fig. 1 is the structural representation of the adjustable light modulation film of light transmission rate of the utility model embodiment.
Fig. 2 is another structural representation of the adjustable light modulation film of light transmission rate of the utility model embodiment.
Fig. 3 is the another structural representation of the adjustable light modulation film of light transmission rate of the utility model embodiment.
Main element symbol description：
Light modulation film 10, light modulation layer 12, conducting film 14, the first conducting film 142, the second conducting film 144, high refractive index film 16,
First high refractive index film 162, the second high refractive index film 164, light-transmissive film 161.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein
Same or similar label represents same or similar element or the element with same or like function from beginning to end.Lead to below
It is exemplary to cross the embodiment being described with reference to the drawings, and is only used for explaining the utility model, and it is not intended that to this practicality
New limitation.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ",
The orientation or position relationship of the instructions such as " clockwise ", " counterclockwise " be based on orientation shown in the drawings or position relationship, be only for
Be easy to describe the utility model and simplify to describe, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " first ",
" second " is only used for describing purpose, and it is not intended that indicating or implying relative importance or imply the technology indicated by indicating
The quantity of feature.Thus, " first " is defined, the feature of " second " can be expressed or implicitly include one or more
The feature.In description of the present utility model, " multiple " are meant that two or more, unless otherwise clearly specific
Limit.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；It can be mechanical connection or electrical connection or can mutually communicate；Can be joined directly together, can also be in
Between medium be indirectly connected, can be connection or the interaction relationship of two elements of two element internals.For this area
For those of ordinary skill, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it
" under " can directly be contacted including the first and second features, it is not directly to contact but lead to that can also include the first and second features
The other characterisation contact crossed between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the
One feature is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special
Sign second feature " under ", " lower section " and " below " including fisrt feature immediately below second feature and obliquely downward, or only
Represent that fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing different structure of the present utility model.
In order to simplify disclosure of the present utility model, hereinafter the part and setting of specific examples are described.Certainly, they are only
Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals
And/or reference letter, this repetition are for purposes of simplicity and clarity, itself not indicate discussed various embodiments
And/or the relation between setting.In addition, various specific techniques and the example of material that the utility model provides, but this
Field those of ordinary skill can be appreciated that the application of other techniques and/or the use of other materials.
Referring to Fig. 1, the adjustable light modulation film 10 of the light transmission rate of the utility model embodiment includes light modulation layer 12, set
Transparent conducting film 14 in light modulation layer 12 and the transparent high refractive index film 16 being arranged on conducting film 14.High refractive index film
16 refractive index is more than the refractive index of conducting film 14.
The light modulation film 10 of the utility model embodiment is under cold closed mode, due to the folding of high refractive index film 16
The refractive index that rate is much larger than air is penetrated, the output angle θ that light is emitted to air from high refractive index film becomes big (relative to prior art
The angle of emergence being directly emitted from conducting film).To sum up, by setting high refractive index film 16, the output angle θ of beam projecting to air becomes
Greatly, it is easier to be totally reflected.Therefore, the absolute transmitance of light modulation film 10 is lower, so as to strengthen the shielding of light modulation film 10.
Referring to Fig. 1, in one embodiment, light L1 enters conducting film 14 from light modulation layer 12, due to light modulation layer
12 and conducting film 14 refractive index it is little, incident ray L1 incidence angle differs not with the emergent ray L2 angle of emergence
Greatly.Because the refractive index of high refractive index layer 16 is much larger than the refractive index of air, so that incident ray L3 is from high refractive index layer 16
Emergent ray L5 output angle θ increase (angle of emergence being directly emitted from conducting film relative to prior art) during air inlet, very
Total reflection phenomenon occurs to portions incident light L3, the reflection light L4 after being totally reflected can not enter from high refractive index film 16
Air.
Specifically, transmitance refers to that light from during face to be illuminated or medium side are incident to another side and left, is thrown
Penetrate and pass through the radiation energy of object and project the ratio of the integrated radiant emittance of object.In addition, when light from media side through another
During side, there are some light ray parallels to be emitted in incident light direction, and some light because occur diffusing reflection and direction occur it is inclined
Turn.Therefore, absolute transmitance refer to parallel to incident direction emergent ray and with incident direction have deflection emergent ray it
With the ratio with entering firing association's light.Parallel transmitance refer to parallel to incident direction emergent ray and enter the ratio of firing association's light
Value.When light modulation film 10 is under cold closed mode, when the object of the behind of light modulation film 10 is distant from light modulation film 10, this
When, being only parallel to the emergent ray of incident direction can be perceived by human eye.When the object of the behind of light modulation film 10 is from light modulation film
10 it is close when, now, emergent ray parallel to incident direction and irreflexive light occur can be perceived by human eye.
It is appreciated that the mixture that light modulation layer 12 includes liquid crystal particle and polymer particles are mixed to form.Light modulation film 10 exists
In the presence of not having voltage, liquid crystal particle is due to being freely orientated and in disorderly arranged.Now, the refractive index of liquid crystal particle and height
The refractive index of molecule mismatches and causes incident ray to be scattered strongly, so that the state of atomization is presented in light modulation film 10.Light modulation
For film 10 in the state of electric current is passed through, ordered arrangement is presented due to the effect of voltage for liquid crystal particle, now, the folding of liquid crystal particle
Rate and high molecular refractive index is penetrated to match so that incident ray can pass through light modulation film 10 so that light modulation film 10 present it is transparent
State.The transparency of light modulation film 10 declines with the reduction of voltage, and when voltage drops to zero, light modulation film 10, which is in, closes shape
State, light modulation film 10 are in complete opaque state.The transparency of light modulation film 10 increases with the rise of voltage, when voltage is increased to
Rated voltage state, light modulation film 10 are in complete pellucidity.
It is appreciated that high refractive index film 16 includes titanium dioxide.The refractive index of titanium dioxide is 2.7 or so, due to dioxy
Change titanium refractive index be far above conducting film 14 refractive index, enter in the light of titanium dioxide have more than 20% light it is anti-
It is emitted back towards.In addition, by experiment measuring and calculating, the incidence angle that general light is totally reflected is 45 degree, but the magnetic on conducting film 14
The incidence angle that light is totally reflected after control sputtering layer of titanium dioxide can be reduced to 23 degree.In this way, the magnetic on conducting film 14
Control sputtering layer of titanium dioxide can strengthen shielding of the light modulation film 10 under cold closed mode.In addition, titanium dioxide
With good transparency, light modulation film 10 nor affects on the transparency of light modulation film 10 in the state of energization.
It is appreciated that light modulation film 10 can apply to the electronics curtain of office's barrier wall, light modulation door and window or automobile.Adjust
Light film 10 can arbitrarily switch pellucidity as needed, so as to reach the double effectses of protection privacy and daylighting.
In some embodiments, the refractive index of light modulation layer 12 is 1.4-1.6.
In this way, the light modulation layer 12 that refractive index is 1.4-1.6 can make light modulation film 10 that electric control optical switch characteristic be better achieved.
Specifically, the refractive index of light modulation layer 12 is controlled in 1.4-1.6, in this way, can make light modulation film 10 in the state of energization
It is lower to be easier that pellucidity is presented, and presentation spray pattern is easier in the state of no power, so as to realize light modulation
The dimming feature of film 10.
In some embodiments, the mixing that the light modulation layer 12 includes liquid crystal particle and polymer particles are mixed to form
Thing, the refringence between the liquid crystal particle and the polymer particles are 0.01.
In this way, being 0.01 by the refringence control between liquid crystal particle and polymer particles, light modulation film 10 can be made more
Electric control optical switch characteristic is realized well.
Specifically, it is 0.01 to control the refringence between liquid crystal particle and polymer particles, light modulation film 10 is in energization
Under state, refractive index and the polymer particles refractive index of liquid crystal particle are easier to match so that light modulation film 10 be easier be in
Existing pellucidity.And light modulation film 10 is in the state of no power, the refractive index of liquid crystal particle and the refractive index of polymer particles it
Between difference it is larger so that light modulation film 10 be easier present spray pattern.
Referring to Fig. 2, in some embodiments, conducting film 14 includes the first conduction being separately positioned in light modulation layer 12
The conducting film 144 of film 142 and second.High refractive index film 16 includes the first high index of refraction being separately positioned on the first conducting film 142
The second high refractive index film 164 on the conducting film 144 of film 162 and second.
In this way, when light modulation film 10 is in cold closed mode, above-mentioned embodiment can make the two of light modulation film 10
Side has good shielding simultaneously.
Specifically, the first conducting film 142 can be used as light modulation as the positive pole of light modulation film 10, the second conducting film 144
The negative pole of film 10.In the state of energization, certain voltage difference is formed between the first conducting film 142 and the second conducting film 144.
Referring to Fig. 2, light modulation film 10 is under cold closed mode, and the liquid crystal particle of light modulation layer 12 is in unordered
State, now, inciding the light of light modulation layer 12 can deflect to all directions.In one embodiment, light L1 from
Light modulation layer 12 enters conducting film 142, and because the refractive index of light modulation layer 12 and conducting film 142 is little, incident ray L1's enters
Firing angle is more or less the same with the emergent ray L2 angle of emergence.Because the refractive index of high refractive index film 16 is much larger than the refraction of air
Rate, incident ray L3 from 162 air inlet of high refractive index layer when emergent ray L5 output angle θ1Increase is (relative to prior art
The angle of emergence being directly emitted from conducting film), in addition portions incident light L3 generation total reflection phenomenons, the reflection after being totally reflected
Light L4 can not be from the air inlet of high refractive index film 162.Meanwhile another way light L6 enters conducting film 142 from light modulation layer 12, by
It is little in the refractive index of light modulation layer 12 and conducting film 144, the outgoing with emergent ray L2 of incident ray L6 incidence angle
Angle is more or less the same.Because the refractive index of high refractive index film 16 is much larger than the refractive index of air, incident ray L8 is from high refractive index layer
Emergent ray L10 output angle θ during 164 air inlet2Increase (the outgoing being directly emitted from conducting film relative to prior art
Angle), or even portions incident light L8 generation total reflection phenomenons, the reflection light L9 after being totally reflected can not be from high refractive index film
164 air inlets.In this way, above-mentioned embodiment can make the both sides of light modulation film 10 while have good shielding.
In some embodiments, the refractive index of high refractive index film 16 is more than or equal to 2.55.
In this way, it is that can make light from high index of refraction more than or equal to 2.55 by the refractive index control of high refractive index film 16
The angle of emergence that film 14 is emitted to air becomes big, it is easier to is totally reflected, so as to strengthen the shielding of light modulation film 10.
In some embodiments, high refractive index film 16 includes glass of high refractive index.
In this way, the refractive index of glass of high refractive index is higher, light can be made to be emitted to going out for air from high refractive index film 14
Firing angle becomes big, it is easier to is totally reflected, so as to strengthen the shielding of light modulation film 10.
Specifically, the light modulation film 10 with glass of high refractive index can make dimming glass door and window, dimming glass curtain wall, adjust
Light glass sunshine room and office's glass partition etc..
Referring to Fig. 3, in some embodiments, high refractive index film 16 includes multilayer light-transmissive film 161, a light-transmissive film 161
The refractive index of (161b) is less than two light-transmissive films 161 (161a) and 161 (161c) positioned at light-transmissive film 161 (161b) opposite sides
Refractive index.The refractive index of light-transmissive film 161 is distributed according to the sequence alternate of high level matches with low level.
In this way, light L2 some lights when by multilayer light-transmissive film 161 can be totally reflected, and from light-transmissive film 161
(the outgoing being directly emitted from conducting film relative to prior art can also be increased by entering the emergent ray L9 of air refraction angle θ
Angle), so as to strengthen the shielding of light modulation film 10.
Further, high refractive index film 16 can be formed by multilayer printing opacity membrane stack, and the refractive index of each layer light-transmissive film follows
The order of height alternately collocation, i.e., the opposite sides of the light-transmissive film of one layer low-refraction is the light-transmissive film of high index of refraction, one layer
The hyaline membrane opposite sides of high index of refraction is all the light-transmissive film of low-refraction.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation
The description of mode ", " example ", " specific example " or " some examples " etc. means with reference to the embodiment or example description
Specific features, structure, material or feature are contained at least one embodiment or example of the present utility model.In this explanation
In book, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.Moreover, the specific spy of description
Sign, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
While there has been shown and described that embodiment of the present utility model, one of ordinary skill in the art can manage
Solution：A variety of to the progress of these embodiments can change in the case where not departing from principle and objective of the present utility model, change,
Replace and modification, the scope of the utility model are limited by claim and its equivalent.
Claims (10)
1. a kind of adjustable light modulation film of light transmission rate, it is characterised in that the light modulation film includes：
Light modulation layer；
The transparent conducting film being arranged in the light modulation layer；With
The transparent high refractive index film being arranged on the conducting film, the refractive index of the high refractive index film are more than the conducting film
Refractive index.
2. light modulation film as claimed in claim 1, it is characterised in that the refractive index of the light modulation layer is 1.4-1.6.
3. light modulation film as claimed in claim 1, it is characterised in that the light modulation layer includes liquid crystal particle and polymer particles mix
The mixture formed is closed, the refringence between the liquid crystal particle and the polymer particles is 0.01.
4. light modulation film as claimed in claim 1, it is characterised in that the refractive index of the conducting film is 1.4-1.5.
5. light modulation film as claimed in claim 4, it is characterised in that the conducting film includes being separately positioned in the light modulation layer
The first conducting film and the second conducting film.
6. light modulation film as claimed in claim 5, it is characterised in that the high refractive index film includes being separately positioned on described first
The second high refractive index film on the first high refractive index film and second conducting film on conducting film.
7. light modulation film as claimed in claim 1, it is characterised in that the refractive index of the high refractive index film be more than or equal to
2.55。
8. light modulation film as claimed in claim 1, it is characterised in that the high refractive index film includes glass of high refractive index.
9. light modulation film as claimed in claim 1, it is characterised in that the high refractive index film includes multilayer light-transmissive film, a printing opacity
The refractive index of film is less than the refractive index of two light-transmissive films positioned at the light-transmissive film opposite sides.
10. light modulation film as claimed in claim 9, it is characterised in that the refractive index of the light-transmissive film is according to the suitable of high level matches with low level
Sequence is alternately distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720801696.7U CN206920757U (en) | 2017-07-04 | 2017-07-04 | The adjustable light modulation film of light transmission rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720801696.7U CN206920757U (en) | 2017-07-04 | 2017-07-04 | The adjustable light modulation film of light transmission rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206920757U true CN206920757U (en) | 2018-01-23 |
Family
ID=61335935
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720801696.7U Expired - Fee Related CN206920757U (en) | 2017-07-04 | 2017-07-04 | The adjustable light modulation film of light transmission rate |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108988773A (en) * | 2018-08-23 | 2018-12-11 | 清华大学深圳研究生院 | A kind of wall-attaching type reflection multilayer volume holographic solar concentrator |
| CN115135072A (en) * | 2022-07-26 | 2022-09-30 | Oppo广东移动通信有限公司 | Decorative film, preparation method thereof, shell and electronic equipment |
-
2017
- 2017-07-04 CN CN201720801696.7U patent/CN206920757U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108988773A (en) * | 2018-08-23 | 2018-12-11 | 清华大学深圳研究生院 | A kind of wall-attaching type reflection multilayer volume holographic solar concentrator |
| CN115135072A (en) * | 2022-07-26 | 2022-09-30 | Oppo广东移动通信有限公司 | Decorative film, preparation method thereof, shell and electronic equipment |
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Address after: 518052 43 Universiade Software Town, 8288 Longgang Avenue, Henggang Street, Longgang District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Ruoyu Technology Co.,Ltd. Address before: 518052 43 Universiade Software Town, 8288 Longgang Avenue, Henggang Street, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN ROYOLE TECHNOLOGIES Co.,Ltd. |
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Granted publication date: 20180123 |