CN110501828A - Aperture, imaging modules and electronic device - Google Patents
Aperture, imaging modules and electronic device Download PDFInfo
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- CN110501828A CN110501828A CN201910830660.5A CN201910830660A CN110501828A CN 110501828 A CN110501828 A CN 110501828A CN 201910830660 A CN201910830660 A CN 201910830660A CN 110501828 A CN110501828 A CN 110501828A
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- 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
- G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
-
- 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
- G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133345—Insulating layers
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- 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
- G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133377—Cells with plural compartments or having plurality of liquid crystal microcells partitioned by walls, e.g. one microcell per pixel
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- 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
- G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
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- 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
- G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
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- 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
- G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
-
- 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
- G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13731—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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on a field-induced phase transition
- G02F1/13737—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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on a field-induced phase transition in liquid crystals doped with a pleochroic dye
Abstract
This application discloses a kind of aperture, imaging modules and electronic devices.Aperture is used for imaging modules.Aperture includes first electrode, multiple second electrodes, photochromic layer, multiple control circuits and insulating layer.The setting corresponding with first electrode of multiple second electrodes.Photochromic layer is formed between first electrode and multiple second electrodes.Each control circuit connects a second electrode, and control circuit is used to apply voltage to second electrode, to change the light transmittance of photochromic layer.Insulating layer is arranged between multiple second electrodes and multiple control circuits.In this way, the amplification and diminution of aperture can simply and easily be realized to change the light transmittance of photochromic layer by applying voltage to second electrode by control circuit.In addition, since insulating layer is arranged between multiple second electrodes and multiple control circuits, multiple second electrodes and multiple control circuits can isolate, so that each control circuit can be controlled separately corresponding second electrode, to realize the zonal control of photochromic layer, so that aperture is more flexible.
Description
Technical field
This application involves technique for taking field, in particular to a kind of aperture, imaging modules and electronic device.
Background technique
The camera lens of the relevant technologies usually controls amount light and scape into camera lens by the amplification of aperture and diminution
It is deep.However, camera lens usually manufactures mechanical aperture with multi-disc iris diaphragm.In this way, the thickness of aperture, shape or size etc., all can
It is influenced by aperture blades, it is difficult to meet the needs of electronic equipment for consumption such as mobile phone or laptop miniaturization.
Summary of the invention
This application provides a kind of aperture, imaging modules and electronic devices.
The aperture of the application embodiment is used for imaging modules, and the aperture includes:
First electrode；
Multiple second electrodes, multiple second electrode settings corresponding with the first electrode；
Photochromic layer, the photochromic layer are formed between the first electrode and multiple second electrodes；
Multiple control circuits, each control circuit connect a second electrode, the control circuit for pair
The second electrode applies voltage, to change the light transmittance of the photochromic layer；
Insulating layer, the insulating layer are arranged between the multiple second electrode and the multiple control circuit.
The imaging modules of the application embodiment include camera lens and above-mentioned aperture, and the camera lens is arranged in the aperture
Entering light side.
The electronic device of the application embodiment includes shell and above-mentioned imaging modules, and the shell is formed with light passing
Hole, the imaging modules receive the light of the external electronic device by the light hole.
The aperture and electronic device of the application embodiment apply voltage to second electrode by control circuit, to change
The light transmittance of photochromic layer can simply and easily realize the amplification and diminution of aperture.In addition, since insulating layer setting is multiple the
Between two electrodes and multiple control circuits, it can isolate multiple second electrodes and multiple control circuits, so that each control circuit
It can be controlled separately corresponding second electrode, so that the zonal control of photochromic layer is realized, so that aperture is more flexible.
Detailed description of the invention
The application is above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is the diagrammatic cross-section of the aperture of the application embodiment；
Fig. 2 is the diagrammatic cross-section of the aperture of another embodiment of the application；
Fig. 3 is the floor map of the aperture of the application embodiment；
Fig. 4 is the diagrammatic cross-section of the aperture of the another embodiment of the application；
Fig. 5 is the floor map of the aperture of the another embodiment of the application；
Fig. 6 is the status diagram of the aperture of the application embodiment；
Fig. 7 is another status diagram of the aperture of the application embodiment；
Fig. 8 is the another status diagram of the aperture of the application embodiment；
Fig. 9 is another status diagram of the aperture of the application embodiment；
Figure 10 is the floor map of the second electrode of the aperture of another embodiment of the application；
Figure 11 is the floor map of the second electrode of the aperture of the another embodiment of the application；
Figure 12 is the floor map of the second electrode of the aperture of the application a further embodiment；
Figure 13 is the control schematic diagram of a scenario of the aperture of the application embodiment；
Figure 14 is the diagrammatic cross-section of the aperture of the application a further embodiment；
Figure 15 is the structural schematic diagram of the imaging modules of the application embodiment；
Figure 16 is the structural schematic diagram of the electronic device of the application embodiment.
Specific embodiment
Embodiments herein is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the application, and should not be understood as the limitation to the application.
Fig. 1, Fig. 2 and Fig. 3 are please referred to, the application embodiment provides a kind of aperture 10.Aperture 10 is used for imaging modules
100。
Aperture 10 includes first electrode 11, multiple second electrodes 12, photochromic layer 13, multiple control circuits 14, insulating layer 15
With sealing element 16, first substrate 17, the second substrate 18.
First electrode 11 is correspondingly arranged with multiple second electrodes 12.In this way, first electrode 11 and multiple second electrodes 12 it
Between can form electric field, and photochromic layer 13 can change light transmittance under the action of electric field, to change the light passing amount of aperture 10.Specifically
Ground, multiple second electrodes 12 can be arranged in parallel with first electrode 11.In other words, multiple second electrodes 12 and first electrode 11
It is equidistant.First electrode 11 and multiple second electrodes 12 can be transparent electrode.
In the present embodiment, the quantity of first electrode 11 is 1, and the quantity of second electrode 12 is 3.For convenience of area
Point, 3 second electrodes 12 are respectively labeled as second electrode 121, second electrode 122, second electrode 123.It note that this not
Represent the limitation to second electrode 12.
It is appreciated that in other implementations, the quantity of first electrode 11 can for 2,4,5,8 or other
Quantity, the quantity of second electrode 12 can be 2,4,5,8 or other quantity.For example, in the example of Fig. 4 and Fig. 5, the
The quantity of one electrode 11 is 1, and the quantity of second electrode 12 is 2.Herein not to the tool of first electrode 11 and second electrode 12
Body quantity is defined.
In the present embodiment, in a ring, multiple second electrodes 12 are with one heart and interval is arranged for each second electrode 12.Such as
This, the light passing amount of aperture 10 is controlled by the second electrode 12 of annular, simple and convenient, easy to accomplish.
It is appreciated that in a ring due to each second electrode 12, each second electrode 12 can control photochromic layer 13
Light transmittance in corresponding annular region, to control the light passing amount of aperture 10.
Referring to Fig. 6, in one example, the corresponding region of photochromic layer 13 and 3 second electrode 12 is in that black is low
State, the transmission region of aperture 10 is using the internal diameter r1 of second electrode 121 as the border circular areas of radius at this time.
Referring to Fig. 7, in another example, under the control of voltage, the area corresponding with second electrode 121 of photochromic layer 13
Domain is in high saturating state, and the region corresponding with second electrode 122 and second electrode 123 of photochromic layer 13 is in the low state of black, at this time aperture
10 transmission region is using the internal diameter r2 of second electrode 122 as the border circular areas of radius.
Referring to Fig. 8, in another example, under the control of voltage, photochromic layer 13 and second electrode 121 and the second electricity
The corresponding region in pole 122 is in high saturating state, and the region corresponding with second electrode 123 of photochromic layer 13 is in the low state of black, at this time aperture
10 transmission region is using the internal diameter r3 of second electrode 123 as the border circular areas of radius.
Referring to Fig. 9, under the control of voltage, photochromic layer 13 and 3 second electrode 12 is corresponding in further example
Region is in high saturating state, and the transmission region of aperture 10 is using the outer diameter r4 of second electrode 123 as the border circular areas of radius at this time.
It is appreciated that in other implementations, second electrode 12 can also be in square as shown in Figure 10, Figure 11 and Figure 12
The shape of shape, ellipse or other shapes, multiple second electrodes 12 may be the same or different.Herein not to second electrode
12 concrete shape is defined.Demand when shape, size and the quantity of second electrode 12 can be according to 10 practical applications of aperture
It determines.
In addition, first electrode 11 and second electrode 12 can be made of at least one of following material: tin indium oxide
(Indium Tin Oxide, ITO), tin oxide fluorine doped (F-doped Tin Oxide, FTO), doped zinc oxide aluminium (Aluminum-
Doped Zine Oxide, AZO).
In the present embodiment, first electrode 11 and second electrode 12 are made of tin indium oxide.It is appreciated that tin indium oxide
Optically and electrically performance is more excellent, in this way, making the translucency of first electrode 11 and second electrode 12 and electric conductivity preferable.
In one example, first electrode 11 and second electrode 12 are made of tin oxide fluorine doped.In another example,
One electrode 11 and second electrode 12 are made of doped zinc oxide aluminium.
In one example, first electrode 11 and second electrode 12 are made of tin indium oxide and tin oxide fluorine doped respectively.In
In another example, first electrode 11 and second electrode 12 are made of tin indium oxide and doped zinc oxide aluminium respectively.In another example
In son, first electrode 11 and second electrode 12 are made of doped zinc oxide aluminium and tin oxide fluorine doped respectively.
In one example, first electrode 11 and second electrode 12 are made of tin indium oxide and tin oxide fluorine doped.Another
In one example, first electrode 11 and second electrode 12 are made of tin indium oxide and doped zinc oxide aluminium.In another example,
First electrode 11 and second electrode 12 are made of doped zinc oxide aluminium and tin oxide fluorine doped.In further example, first electrode
11 and second electrode 12 be made of tin indium oxide, tin oxide fluorine doped and doped zinc oxide aluminium.
Photochromic layer 13 includes dye solution crystal layer 132, the first both alignment layers 134 and the second both alignment layers 136.Photochromic layer 13 is formed in
Between first electrode 11 and multiple second electrodes 12.
Dye solution crystal layer 132 is used to change according to the voltage applied the light transmittance of itself.In this way, realizing control aperture 10
Light passing amount.
Specifically, dye solution crystal layer 132 can be mixed by dyestuff and liquid crystal.Further, dyestuff is dichroism dye
Material.It is appreciated that liquid crystal is colourless transparent liquid, dichroic dye is added in liquid crystal, can dye liquid crystal be shown
It is colored out.Moreover, according to the difference that dyestuff is added, dye liquid crystal can have different colors.Such as grey black, blue, orange
Color etc..
Figure 13 is please referred to, after feed liquor crystalline substance is added in dyestuff, dye molecule can keep arranged in parallel with liquid crystal molecule orientation,
Dye molecule can generate the rotation with position phase under the action of electric field with liquid crystal molecule.Oriented after dye molecule rotation is not
Together, cause dye molecule different to the degree of absorption of light.Under the control of voltage, dye solution crystal layer 132 can be arrived in grey black
It changes between transparent, control light changes through between state and impermeable state.In this way, photochromic layer 13 can be according to the electricity applied
Pressure changes the light transmittance of itself.
In the present embodiment, the dye liquid crystal of dye solution crystal layer 132 is liquid crystal and the black dye with high binomial color
The mixture of material.In other words, the color of dyestuff is black.Specifically, dye solution crystal layer 132 is in high saturating state, it is seen that light is flat
Equal light transmittance is greater than 80%, in low state, it is seen that light average transmittance is less than 10%.
In addition, present embodiment, the thickness range of dye solution crystal layer 132 is 1um-50um.For example, 1um, 5um, 12um,
27um,46um,50um.The specific thickness of dye solution crystal layer 132 is not defined herein.
First both alignment layers 134 and the second both alignment layers 136 are correspondingly arranged, and dye solution crystal layer 132 is arranged in the first both alignment layers 134
And second between both alignment layers 136, and first electrode 11 is arranged in towards the side of multiple second electrodes 12 in the first both alignment layers 134, and
Multiple second electrodes 12 are arranged in towards the side of first electrode 11 in two both alignment layers 136.In this way, passing through 134 He of the first both alignment layers
Second both alignment layers 136 arrange dye liquid crystal molecule according to fixed pre-tilt angle.
It is appreciated that pre-tilt angle can control the orientation of liquid crystal molecule, the appearance on anti-farmland of inclining in liquid crystal layer is prevented.Separately
Outside, pre-tilt angle can also influence light transmittance-voltage curve of dye solution crystal layer 132 to a certain extent, to accelerate dye liquid crystal
The response speed of layer 132.
In the present embodiment, the first both alignment layers 134 and the second both alignment layers 136 are by polyimides (Polyimide, PI) material
Material is made, and the thickness of the first both alignment layers 134 and the second both alignment layers 136 is respectively less than 150nm.For example, 145um, 140um, 120um,
107um,96um,50um.The specific thickness of the first both alignment layers 134 and the second both alignment layers 136 is not defined herein.
Each control circuit 14 connects a second electrode 12, and control circuit 14 is used to apply voltage to second electrode 12,
To change the light transmittance of photochromic layer 13.In this way, each second electrode 12 is individually controlled by each control circuit 14, may be implemented pair
The independent control of each second electrode 12, to realize the subregional independent control to aperture 10.
In the present embodiment, the control voltage that control circuit 14 applies between first electrode 11 and second electrode 12
Range is 1V-20V.For example, 1V, 2V, 9V, 12V, 16V, 19V, 20V or other numerical value.In addition, control voltage is alternating current
Pressure, the range of the frequency of alternating voltage are 500Hz-5000Hz.For example, 500Hz, 550Hz, 602Hz, 700Hz, 880Hz,
1500Hz, 5000Hz or other numerical value.The specific value and specific frequency of control voltage are not defined herein.
As previously mentioned, in the present embodiment, the quantity of second electrode 12 is 3.Accordingly, the quantity of control circuit 14
It also is 3.For convenience of differentiation, 3 control circuits 14 are respectively labeled as control circuit 141, control circuit 142, control circuit
143.Further, control circuit 141 connects second electrode 121；Control circuit 142 connects second electrode 122；Control circuit
143 connection second electrodes 123.It note that this does not represent the limitation to control circuit 14.
The working principle of aperture 10 in present embodiment are as follows: under default conditions, dye solution crystal layer 132 is that black is low
State, aperture is minimum at this time.When needing bigger aperture when taking, first electrode 11 and second electrode 12 are switched on, the first electricity
The dye solution crystal layer 132 of annular section between pole 11 and second electrode 12 is controlled by voltage and is turned to, and is height from the variation of low state
Saturating state allows light to pass through, and aperture becomes larger.Conversely, voltage is removed, aperture becomes smaller.Due to the second electrode 12 of each annular
Being connected with control circuit 14 independently, thus each second electrode 12 is controlled individually, and can choose so different
Aperture size.
Referring to Fig. 6, in one example, under default conditions, photochromic layer 13 and second electrode 121, second electrode 122,
The corresponding region of second electrode 123 is in the low state of black.The transmission region of aperture 10 is with the internal diameter r1 of second electrode 121 at this time
For the border circular areas of radius.
Referring to Fig. 7, in another example, control circuit 141 applies voltage, first electrode 11 to second electrode 121
It is switched on second electrode 121, so that the region corresponding with second electrode 121 of photochromic layer 13 is in high saturating state.And photochromic layer 13 with
Second electrode 122, the corresponding region of second electrode 123 are still in the low state of black.The transmission region of aperture 10 is with second at this time
The internal diameter r2 of electrode 122 is the border circular areas of radius.
Referring to Fig. 8, control circuit 141 applies electricity to second electrode 121, second electrode 122 in another example
Pressure, first electrode 11 and second electrode 121, second electrode 122 are switched on, so that the 121, second electricity of photochromic layer 13 and second electrode
The corresponding region in pole 122 is in high saturating state.And the region corresponding with second electrode 123 of photochromic layer 13 is still in the low state of black.At this time
The transmission region of aperture 10 is using the internal diameter r3 of second electrode 123 as the border circular areas of radius.
Referring to Fig. 9, control circuit 141 is to second electrode 121, the 122, second electricity of second electrode in further example
Pole 123 applies voltage, and first electrode 11 and second electrode 121, second electrode 122, second electrode 123 are switched on, so that discoloration
13 region corresponding with second electrode 121, second electrode 122, second electrode 123 of layer are in high saturating state.The light transmission of aperture 10 at this time
Region is using the outer diameter r4 of second electrode 123 as the border circular areas of radius.
Control circuit 14 is made of at least one of following material: tin indium oxide (Indium Tin Oxide, ITO),
Tin oxide fluorine doped (F-doped Tin Oxide, FTO), doped zinc oxide aluminium (Aluminum-doped Zine Oxide, AZO).
In the present embodiment, control circuit 14 is made of tin indium oxide.The material of control circuit 14 can be with first electrode 11 and
The material of two electrodes 12 is identical, can also be different, herein without limiting.
In addition, control circuit 14 can also be made of metal material, for example, copper (Cu), aluminium (Al), silver-colored (Ag), molybdenum (Mo) etc. or
The laminated construction of person's various metals composition.In the situation made of metal of control circuit 14, the width of control circuit 14
Range is less than 1mm.Further, the width range of control circuit 14 is 10um-100um.For example, 10um, 12um, 20um,
31um,45um,78um,82um,90um,100um.The specific width of control circuit 14 is not defined herein.
It is appreciated that the width of control circuit 14 is too small, will lead to that electric conductivity is poor, the width of control circuit 14 too it is wide then
It can shut out the light and pass through, influence the performance of aperture 10.And the width range of control circuit 14 is 10um-100um, is being guaranteed preferably
Electric conductivity while, avoid to blocking for light excessively serious, taken into account the electric conductivity and aperture 10 of control circuit 14
Performance.
Insulating layer 15 is arranged between multiple second electrodes 12 and multiple control circuits 14.Insulating layer 15 is formed with multiple logical
Hole 152, each control circuit 14 connect a second electrode 12 by through-hole 152.In this way, multiple second electrodes and multiple controls
Circuit 14 mutually completely cuts off, and control circuit 14 connect correspondingly with second electrode 12 so that each second electrode 12 individually by
Control the subregion control that aperture 10 is realized in corresponding control circuit 14.
As previously mentioned, in the present embodiment, the quantity of second electrode 12 is 3, and the quantity of control circuit 14 is also 3
It is a.Accordingly, the quantity of through-hole 152 is also 3.Through-hole 152 can be contact hole.For convenience of differentiation, 3 through-holes 152 are distinguished
Labeled as through-hole 1521, through-hole 1522, through-hole 1523.Further, control circuit 141 connects second electrode by through-hole 1521
121；Control circuit 142 connects second electrode 122 by through-hole 1522；Control circuit 143 passes through second electricity of the connection of through-hole 1523
Pole 123.It note that this does not represent the limitation to through-hole 152.
It note that " insulating layer 15 is arranged between multiple second electrodes 12 and multiple control circuits 14 " refers to herein: absolutely
Edge layer 15 is arranged between multiple second electrodes 12, so that mutually insulated between multiple second electrodes 12；The setting of insulating layer 15 exists
Between multiple control circuits 14, so that mutually insulated between multiple control circuits 14；Insulating layer 15 is arranged not corresponding second
Between electrode 12 and control circuit 14, so that mutually insulated between not corresponding second electrode 12 and control circuit 14.In other words,
Insulating layer 15 to be electrically connected correspondingly between second electrode 12 and control circuit 14, so that each control circuit 14
It can be controlled separately corresponding second electrode 12.
In Fig. 1 and embodiment shown in Fig. 3, through-hole 152 is contact hole.Second electrode 12 is at least partly arranged
In contact hole.The conducting that can simply and easily realize control circuit 141 and second electrode 12 in this way, advantageously reduces cost.
Figure 14 is please referred to, aperture 10 may also include conduction element 154.Conduction element 154 is at least partially disposed on through-hole 152,
Each control circuit 14 connects a second electrode 12 by conduction element 154.In this way, can also realize each control circuit 14 with it is right
The electrical connection for the second electrode 12 answered.Further, conduction element 154 can be metalwork or conducting resinl.Herein not to conducting
The concrete form of part 154 is defined.
It is electrically connected by through-hole 152 with corresponding second electrode 12 additionally, it is appreciated that being also possible to member control circuit 14
It connects, remaining control circuit 14 is electrically connected by conduction element 154 with corresponding second electrode 12.
Insulating layer 15 is made of at least one of following material: silicon nitride (SiNx), silica (SiOx), silicon oxynitride
(SiON).Certainly, insulating layer 15 can also be made of other organic transparent insulation film layers.Herein not to the specific material of insulating layer 15
It is defined.
Sealing element 16 is arranged between first electrode 11 and insulating layer 15, and the setting of sealing element 16 is in the first both alignment layers 134, the
The outside of two both alignment layers 136 and dye solution crystal layer 132.In other words, sealing element 16 surrounds seal cavity, the first both alignment layers 134,
Second both alignment layers 136 and dye solution crystal layer 132 are arranged in seal cavity.
In this way, the first both alignment layers 134, the second both alignment layers 136, dye solution crystal layer 132 and second electrode 12 are encapsulated, avoid
Dust or steam enter the performance for influencing aperture 10, and it is excessive to also avoid dye solution crystal layer 132, avoid the first both alignment layers 134,
The reliability of aperture 10 can be improved since extraneous factor is impaired in second both alignment layers 136 and second electrode 12.
Specifically, sealing element 16 can be made of sealant.Sealant is, for example, light-sensitive emulsion.Herein not to the tool of sealing element 16
Body material is defined.
First substrate 17 and the second substrate 18 can be oppositely arranged.The setting of first substrate 17 is in first electrode 11 away from the second electricity
The side of pole 12.The side that second electrode 12 deviates from first electrode 11 is arranged in the second substrate 18.Specifically, 17 He of first substrate
The second substrate 18 is glass substrate.
Figure 15 is please referred to, the application embodiment provides a kind of imaging modules 100, and imaging modules 100 include above-mentioned
Aperture 10.
Imaging modules 100 may also include camera lens 20, shell 30 and imaging sensor 40.Aperture 10, camera lens 20 and image pass
Sensor 40 is contained in shell 30.It can be imaged onto the image sensor 40 by the light of aperture 10 and camera lens 20.
Shell 30 can be surrounded with internal element, avoided extraneous factor and caused directly to damage to these elements.Tool
Body, shell 30 can use polycarbonate (Polycarbonate, PC) or acrylonitrile-butadiene-styrene (ABS) plastics
The molding of (Acrylonitrile Butadiene Styrene plastic, ABS) material injection.Herein not to the tool of shell 30
Body material is defined.
Imaging sensor 40 can use complementary metal oxide semiconductor (CMOS, Complementary Metal
Oxide Semiconductor) photosensitive element or charge coupled cell (CCD, Charge-coupled Device) photosensitive member
Part.The concrete form of imaging sensor 40 is not defined herein.
Figure 16 is please referred to, the application embodiment provides a kind of electronic device 1000, and electronic device 1000 includes shell
200 and above-mentioned imaging modules 100, shell 200 is formed with light hole 202, and imaging modules 100 receive electricity by light hole 202
Light outside sub-device 1000.
The application embodiment imaging modules 100 and electronic device 1000 apply second electrode 12 by control circuit 14
Making alive can simply and easily realize the amplification and diminution of aperture 10 to change the light transmittance of photochromic layer 13.In addition, due to
Insulating layer 15 is arranged between multiple second electrodes 12 and multiple control circuits 14, can isolate multiple second electrodes 12 and multiple
Control circuit 14, so that each control circuit 14 can be controlled separately corresponding second electrode 12, to realize point of photochromic layer 13
Area's control, so that aperture 10 is more flexible.
Electronic device 1000 can set for various types of computer systems that are mobile or portable and executing wireless communication
It is any one of standby.Specifically, electronic device 1000 can be mobile phone, portable gaming device, laptop computer, palm electricity
It is brain (persnal digital assistant, PDA), tablet computer (prtable andrid device, PAD), portable
Internet device, wearable device, car-mounted terminal, navigator, music player and data storage device etc..
In summary, aperture is basic one of the structure of imaging modules, by the amplification of aperture and diminution can control into
Enter the amount light and the depth of field of imaging modules, and the imaging modules of the relevant technologies mainly manufacture mechanical light with multi-disc iris diaphragm
Circle, the thickness or iris shape size of imaging modules are all influenced by aperture blades.
As imaging modules are integrated in a variety of electronic devices such as mobile phone, plate, laptop, electronic device is to imaging
The size of mould group requires more stringent.However, due to the thickness of the aperture of the relevant technologies or the limitation of size, it is difficult to meet electronics
The demand of device miniaturization.Currently, the imaging modules of electronic device are usually fixed aperture in the related technology, which has limited electronics
The application of taking pictures of device.
And the application embodiment provides a kind of aperture 10.Aperture 10 is used for imaging modules 100.Aperture 10 includes first
Electrode 11, multiple second electrodes 12, photochromic layer 13, multiple control circuits 14 and insulating layer 15.
Multiple second electrodes 12 are correspondingly arranged with first electrode 11.Photochromic layer 13 is formed in first electrode 11 and multiple second
Between electrode 12.Each control circuit 14 connects a second electrode 12, and control circuit 14 is for applying electricity to second electrode 12
Pressure, to change the light transmittance of photochromic layer 13.Insulating layer 15 is arranged between multiple second electrodes 12 and multiple control circuits 14.
The application embodiment aperture 10 applies voltage to second electrode 12 by control circuit 14, to change photochromic layer
13 light transmittance can simply and easily realize the amplification and diminution of aperture 10.In addition, since the setting of insulating layer 15 is multiple the
Between two electrodes 12 and multiple control circuits 14, multiple second electrodes 12 and multiple control circuits 14 can isolate, so that each
Control circuit 14 can be controlled separately corresponding second electrode 12, so that the zonal control of photochromic layer 13 is realized, so that aperture 10 is more
Add flexibly.
The application embodiment aperture 10 realizes the structure of iris ring by dye liquid crystal technology.With the relevant technologies
Aperture compare, the application embodiment aperture 10 have miniaturization and control simple advantage, avoid the light of the relevant technologies
The size of circle limits.Meanwhile the response speed of liquid crystal is Millisecond, fast response time, control is simply.In mobile phone and notebook electricity
Using the aperture 10 that can dynamically zoom in or out of miniaturization in the imaging modules 100 of the electronic devices such as brain 1000, can enrich
It takes pictures effect.
Above embodiments only express the several embodiments of the application, and the description thereof is more specific and detailed, but can not
Therefore it is interpreted as the limitation to the application the scope of the patents.It should be pointed out that for those of ordinary skill in the art,
Without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection model of the application
It encloses.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (12)
1. a kind of aperture, it to be used for imaging modules, which is characterized in that the aperture includes:
First electrode；
Multiple second electrodes, multiple second electrode settings corresponding with the first electrode；
Photochromic layer, the photochromic layer are formed between the first electrode and multiple second electrodes；
Multiple control circuits, each control circuit connect a second electrode, and the control circuit is used for described
Second electrode applies voltage, to change the light transmittance of the photochromic layer；
Insulating layer, the insulating layer are arranged between the multiple second electrode and the multiple control circuit.
2. aperture according to claim 1, which is characterized in that the insulating layer is formed with multiple through-holes, each control
Circuit processed connects a second electrode by the through-hole.
3. aperture according to claim 2, which is characterized in that the aperture includes conduction element, the conduction element at least portion
Divide ground setting in the through-hole, each control circuit passes through the conduction element and connects a second electrode.
4. aperture according to claim 1, which is characterized in that the insulating layer is made by least one of following material
At: silicon nitride, silica, silicon oxynitride.
5. aperture according to claim 1, which is characterized in that each second electrode in a ring, multiple described
Two electrodes are with one heart and interval is arranged.
6. aperture according to claim 1, which is characterized in that the first electrode and the second electrode are by following material
At least one of be made: tin indium oxide, tin oxide fluorine doped, doped zinc oxide aluminium.
7. aperture according to claim 1, which is characterized in that the control circuit is made by least one of following material
At: tin indium oxide, tin oxide fluorine doped, doped zinc oxide aluminium.
8. aperture according to claim 1, which is characterized in that the control circuit is made of metal material, the control
The width range of circuit is less than 1mm.
9. aperture according to claim 1, which is characterized in that the photochromic layer includes dye solution crystal layer, the first both alignment layers
With the second both alignment layers, first both alignment layers and second both alignment layers are correspondingly arranged, and the dye solution crystal layer is used for according to institute
The voltage of application changes the light transmittance of itself, and the dye solution crystal layer is arranged in first both alignment layers and second both alignment layers
Between, the first electrode is arranged in towards the side of multiple second electrodes, second orientation in first both alignment layers
Multiple second electrodes are arranged in towards the side of the first electrode in layer.
10. aperture according to claim 9, which is characterized in that the aperture includes being arranged in the first electrode and institute
The sealing element between insulating layer is stated, the sealing element is arranged in first both alignment layers, second both alignment layers and the dyestuff
The outside of liquid crystal layer.
11. a kind of imaging modules, which is characterized in that including aperture described in claim 1-10.
12. a kind of electronic device, which is characterized in that including imaging modules described in shell and claim 11, the outer hull shape
At there is light hole, the imaging modules receive the light of the external electronic device by the light hole.
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| CN201910830660.5A CN110501828A (en) | 2019-09-04 | 2019-09-04 | Aperture, imaging modules and electronic device |
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| WO2021238565A1 (en) * | 2020-05-29 | 2021-12-02 | 华为技术有限公司 | Liquid aperture, electronic device, and driving method and driving apparatus for liquid aperture |
| WO2021244181A1 (en) * | 2020-06-05 | 2021-12-09 | 华为技术有限公司 | Aperture, aperture control method, camera assembly and electronic device |
| WO2022228292A1 (en) * | 2021-04-28 | 2022-11-03 | 维沃移动通信（杭州）有限公司 | Display module, electronic apparatus, photography control method, and photography control device |
| WO2023040906A1 (en) * | 2021-09-16 | 2023-03-23 | 维沃移动通信有限公司 | Variable aperture, camera module, and electronic device |
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