CN102804048B - Sandwich construction liquid crystal optical device and manufacture method thereof - Google Patents
Sandwich construction liquid crystal optical device and manufacture method thereof Download PDFInfo
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- CN102804048B CN102804048B CN201180011260.3A CN201180011260A CN102804048B CN 102804048 B CN102804048 B CN 102804048B CN 201180011260 A CN201180011260 A CN 201180011260A CN 102804048 B CN102804048 B CN 102804048B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 185
- 230000003287 optical effect Effects 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000010276 construction Methods 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 239000000758 substrate Substances 0.000 claims abstract description 142
- 230000008569 process Effects 0.000 claims abstract description 28
- 239000008393 encapsulating agent Substances 0.000 claims description 19
- 210000002858 crystal cell Anatomy 0.000 claims description 18
- 230000015572 biosynthetic process Effects 0.000 claims description 15
- 238000003475 lamination Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000004044 response Effects 0.000 abstract description 15
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 238000011068 loading method Methods 0.000 abstract description 4
- 239000011521 glass Substances 0.000 description 17
- 230000004075 alteration Effects 0.000 description 8
- 238000011049 filling Methods 0.000 description 7
- 230000009977 dual effect Effects 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 239000004642 Polyimide Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 239000012528 membrane Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 244000287680 Garcinia dulcis Species 0.000 description 1
- 239000004988 Nematic liquid crystal Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Classifications
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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
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
-
- 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
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
- G02F1/13471—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells
-
- 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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal (AREA)
Abstract
A kind of sandwich construction liquid crystal optical device and manufacture method thereof are provided, can easily process, and guarantee loading and the sufficient optical range (L) of liquid crystal, response speed and light transmission can be improved.Sandwich construction liquid crystal optical device (100) comprising: the 1st unit element (10), be formed between the substrate (10a) of segment electrode and the substrate (10b) not forming electrode, be sealed with liquid crystal (40); 2nd unit element (20), is not being formed between the substrate (20a) of electrode and the substrate (20b) being formed with public electrode, is being sealed with liquid crystal (40); And the 3rd unit element (30), between the substrate (30a, 30b) not forming electrode, be sealed with liquid crystal (40), configure and stacked 4 the 3rd unit elements (30) between the 1st unit element (10) and the 2nd unit element (20).In addition, the direction of orientation of the liquid crystal of the direction of orientation of the liquid crystal of 2 the 3rd unit elements (30) of the 1st unit element (10) and top and 2 the 3rd unit elements (30) of the 2nd unit element (20) and below is configured to mutually orthogonal.
Description
Technical field
The present invention relates to and be formed with the sandwich construction liquid crystal optical device and manufacture method thereof between the substrate of segment electrode and the substrate being formed with public electrode with multiple liquid crystal layer.
Background technology
In the past, people knew to have and between the substrate being formed with electrode, clamped liquid crystal and the various liquid crystal optical devices formed.Such as, as information recording carrier, there is CD, the various optical disc apparatus such as DVD, but, in these optical disc apparatus, due to because rotating the thickness deviation caused, the factor such as bending, produce aberration (deformation of focal point), therefore must correct this aberration, guarantee the precision recording, regenerate.Therefore, in concentrically ringed ring-type and formed in the substrate of electrode, adopt the liquid-crystal aberration correcting element of clamping liquid crystal, thus, carry out different phase control (patent documentation 1) at the central portion of light beam and outer edge.
In existing liquid crystal optical device, control the molecules align state of liquid crystal to electrically, change the character such as the refractive index of light thus.Due to the distribution by changing control refractive index with two dimension or three dimensional constitution, controlling the phase-delay quantity of each light path, the refractive status of light path, is therefore electronically to change the useful function element as optical element such as bifocal liquid crystal lens, liquid-crystal aberration correcting element.But, in order to produce the refraction effect of the useful light in practical application aspect to greatest extent, need between two alignment films of the correspondence of liquid crystal optics box, the liquid crystal of amount is fully kept along light path, for this reason, be the situation of about several μm relative to common liquid crystal display cell, need that the thickness of liquid crystal layer (between two alignment films) is extremely thick reaches about 30 ~ 100 μm.
In addition, people know, square being inversely proportional to of the response speed of liquid crystal and the thickness (between two alignment films) of liquid crystal layer, and like this, when thicker liquid crystal optics box, the response time is 100ms ~ several minutes.That is, existing many liquid crystal optical devices have the slow problem of response speed.
When opertaing device, the slow this point of response speed is for the Varifocal lens function, the aberration correction function that adopt liquid crystal optical device, is larger restriction, forms practical problem.
In recent years, in order to improve multiplying power (power) and the response speed of liquid crystal lens, people propose the optical element (patent documentation 2) with 2 liquid crystal layers.
In the optical element recorded in patent documentation 2,2 liquid crystal cells with 2 liquid crystal layers overlap, and form dual structure.In each liquid crystal cell, liquid crystal layer is divided into 2 layers by transparent glass layer (insulation course).In the case, there is electrode in the joint face of 2 liquid crystal cells.
Prior art document
Patent documentation
Patent documentation 1:JP JP 2002-237077 publication
Patent documentation 2:JP JP 2006-91826 publication
Summary of the invention
The problem that invention will solve
But in the liquid crystal optical device recorded in patent documentation 1, as described above, in order to obtain the variations in refractive index that application needs, the liquid crystal layer needing transmission thicker guarantees sufficient optical range L.
Generally, people know, if liquid crystal thickness, then and thickness (between two alignment films) square slack-off pro rata of response time and liquid crystal layer.Thus, if increase the thickness of liquid crystal layer, then there is the problem that response speed reduces, there is practical problem.
In addition, in patent documentation 2, the increase of liquid crystal lens multiplying power (power), the improvement of response speed is limited, in order to increase lens multiplying power (power) further, increases response speed in addition, needs to form multiple liquid crystal layer.But when forming multiple liquid crystal layer, due to the clear glass thickness of centre, therefore liquid crystal cell is thickening.Thus, response speed reduces, and needs high applying voltage.
In addition, when adopting thin transparent glass layer in order to reducer crystal cell, it is difficult in manufacturing process, processing, clean, process, cure etc.
Further, when forming dual structure when being overlapped by 2 liquid crystal cells, owing to having ito film, high resistance membrane, alignment films on the substrate of the connection side of 2 liquid crystal cells, the problem that the transmissivity therefore with light reduces.In addition, when forming dual structure, the quantity with electrode is many, with the shortcoming of the configuration complexity of the terminal of each Electrode connection.
So, the object of the present invention is to provide a kind of sandwich construction liquid crystal optical device and manufacture method thereof, formation substrate have after the unit element of the liquid crystal cell of electrode and two substrates do not have the unit element of multiple liquid crystal cells of electrode, the substrate carrying out bonding side of the unit element of liquid crystal cell is ground to form specific thickness and carries out stacked, be easy to processing thus, and the loading of liquid crystal and sufficient optical range L can be guaranteed, response speed and light transmission can be improved.
For solving the technical scheme of problem
In order to solve above-mentioned problem, the feature of sandwich construction liquid crystal optical device of the present invention is, comprising: the 1st unit element, being formed with between the substrate of segment electrode and the substrate not forming electrode, is sealed with liquid crystal; 2nd unit element, being formed with between the substrate of public electrode and the substrate not forming electrode, is sealed with liquid crystal; And the 3rd unit element, between 2 substrates not forming electrode, be sealed with liquid crystal, between above-mentioned 1st unit element and the 2nd unit element, configure and be laminated with multiple above-mentioned 3rd unit element.
Such as, in above-mentioned sandwich construction liquid crystal optical device, the substrate not forming above-mentioned electrode thinning processing and being formed under the state being sealed with above-mentioned liquid crystal.
In addition, such as, in above-mentioned sandwich construction liquid crystal optical device, above-mentioned 1st unit element and a part direction of orientation of liquid crystal of above-mentioned 3rd unit element and the direction of orientation of the liquid crystal of above-mentioned 2nd unit element and other above-mentioned 3rd unit element be configured to mutually orthogonal.
In addition, in order to solve above-mentioned problem, the feature of the manufacture method of sandwich construction liquid crystal optical device of the present invention is, comprise: the 1st unit element formation process, after being formed and enclosing liquid crystal between the substrate of segment electrode and the substrate not forming electrode, thinning processing does not form the substrate of electrode, thus forms the 1st unit element; 2nd unit element formation process, after being formed and enclosing liquid crystal between the substrate of public electrode and the substrate not forming electrode, thinning processing does not form the substrate of electrode, thus forms the 2nd unit element; 3rd unit element formation process, enclose liquid crystal between 2 substrates not forming electrode after, thinning processing 2 substrates, thus form the 3rd unit element; And lamination process, between above-mentioned 1st unit element and the 2nd unit element, configure and stacked multiple above-mentioned 3rd unit element.
Such as, above-mentioned liquid crystal adopts drip to enclose.In addition such as, in the manufacture method of above-mentioned sandwich construction liquid crystal optical device, in above-mentioned lamination process, the direction of orientation of the liquid crystal of the direction of orientation of the liquid crystal of above-mentioned 1st unit element and above-mentioned 3rd unit element of a part and above-mentioned 2nd unit element and other above-mentioned 3rd unit element is configured to mutually orthogonal.
The effect of invention
According to the manufacture method of sandwich construction liquid crystal optical device of the present invention and sandwich construction liquid crystal optical device, after being formed and enclosing liquid crystal between the substrate of segment electrode and the substrate not forming electrode, thinning processing does not form the substrate of electrode, thus form the 1st unit element, after being formed and enclosing liquid crystal between the substrate of public electrode and the substrate not forming electrode, thinning processing does not form the substrate of electrode, thus form the 2nd unit element, enclose liquid crystal between 2 substrates not forming electrode after, thinning processing 2 substrates, thus form the 3rd unit element, configure and stacked multiple 3rd unit element between the 1st unit element and the 2nd unit element, thus, be easy to processing, and the loading of liquid crystal and sufficient optical range L can be guaranteed, response speed and light transmission can be improved.
In addition, because the substrate not forming electrode is thinning under the state being sealed with liquid crystal processing, therefore can prevent substrate deformation (flexure) when enclosing liquid crystal, obtaining uniform optical characteristics.In addition, when comparatively unfertile land substrate processing, substrate when not flexure, can be processed into smooth face.
In addition, there is following advantage, namely, because liquid crystal adopts drip to enclose, therefore the deviation of dropped amount and spatial volume can be inhibited in the expanded scope of encapsulant when assembled substrate, adds man-hour at comparatively unfertile land, compared with the existing structure sealed from laterally injecting, there is no the infringement of sealing, do not meet with stresses.
Also have, the direction of orientation of the direction of orientation of the liquid crystal of the 1st unit element and a part the 3rd unit element and the liquid crystal of the 2nd unit element and other the 3rd unit element is configured to mutually orthogonal, thus compared with existing double liquid-crystal lens, electrode layer (ITO layer), high resistance rete are few, and light transmission can improve significantly.
Further, due to compared with existing double liquid-crystal lens, the quantity of electrode is few, therefore structure is simple, easy to manufacture, can cut down manufacturing cost.
In addition, owing to being made up of the unit element of liquid crystal cell, therefore compared with existing double liquid-crystal lens, when forming sandwich construction, not needing to aim at, easily assembling.
Accompanying drawing explanation
Fig. 1 is the exploded view of the structure of the sandwich construction liquid crystal optical device 100 representing embodiment.
Fig. 2 is the cut-open view along A-A line of the structure representing sandwich construction liquid crystal optical device 100.
Fig. 3 is the process flow diagram of the manufacture method representing sandwich construction liquid crystal optical device 100.
Fig. 4 is the cut-open view of the state before and after the grinding of expression the 1st unit element 10.
Fig. 5 is the cut-open view of the state before and after the grinding of expression the 2nd unit element 20.
Fig. 6 is the cut-open view of the state before and after the grinding of expression the 3rd unit element 30.
Embodiment
With reference to accompanying drawing, the optimal way for implementing sandwich construction liquid crystal optical device of the present invention and manufacture method thereof is described.
Fig. 1 is the exploded view of the structure of the sandwich construction liquid crystal optical device 100 of expression the 1st embodiment.Fig. 2 is the cut-open view along A-A line of the structure representing sandwich construction liquid crystal optical device 100.
As shown in Figure 1 and Figure 2, sandwich construction liquid crystal optical device 100 comprises the 1st unit element 10, the 2nd unit element 20 and multiple (being 4 in the present example) the 3rd unit element 30, and this sandwich construction liquid crystal optical device is arranged and stacked 4 the 3rd unit elements 30 and forming between the 1st unit element 10 and the 2nd unit element 20.In addition, the direction of orientation of the liquid crystal of the direction of orientation of the liquid crystal of 2 the 3rd unit elements 30 of the 1st unit element 10 and top and 2 the 3rd unit elements 30 of the 2nd unit element 20 and below is arranged mutually orthogonally.
1st unit element 10 is made up of substrate 10a, substrate 10b, liquid crystal 40 and encapsulant 50, the 1st drive electrode 11 as segment electrode (segment electrode) and the 2nd drive electrode 12 is formed in this substrate 10a, in substrate 10b, do not form electrode, this liquid crystal 40 is sealed between substrate 10a and substrate 10b.Substrate 10a to be thickness the be transparent glass substrate of 300 μm.Substrate 10b to be thickness the be transparent glass substrate of 30 μm.In addition, liquid crystal 40 is sealed in inner side by encapsulant 50.
In addition, as shown in Figure 1, the central part of substrate 10a up, arranges the 2nd circular drive electrode 12, at its periphery, arranges the 1st drive electrode 11.1st drive electrode 11 and the 1st drive terminal V
1connect.In addition, the 2nd drive electrode 12 and the 2nd drive terminal V
2connect.By applying different voltage to the 1st drive electrode 11 and the 2nd drive electrode 12, can be used as lens.
2nd unit element 20 by be not formed electrode substrate 20a, central portion be formed circular public electrode (common electrode) 21 substrate 20b, be sealed in liquid crystal 40 between substrate 20a and substrate 20b and encapsulant 50 is formed.Substrate 20a to be thickness the be transparent glass substrate of 30 μm.Substrate 20b to be thickness the be transparent glass substrate of 300 μm.Liquid crystal 40 is sealed in inner side by encapsulant 50.In addition, the thickness direction along substrate 20b penetrates porose, in this hole, arranges the ground terminal V being used for being connected with public electrode 21
0(with reference to Fig. 2).
3rd unit element 30 by be not formed electrode substrate 30a, 30b, be sealed in liquid crystal 40 between substrate 30a and substrate 30b and encapsulant 50 is formed.Substrate 30a, 30b to be thickness be transparent glass substrate of 30 μm.Liquid crystal 40 is sealed in inner side by encapsulant 50.
In addition, in the case of the present example, the thickness of each liquid crystal layer is 10 ~ 30 μm.Liquid crystal 40 is the major axis of the such as molecule when applying voltage is positive nematic liquid crystal (Np liquid crystal) towards the dielectric constant anisotropy of direction of an electric field.
Here, at public electrode 21, the 1st drive electrode 11 and between the 2nd drive electrode 12 and liquid crystal 40, omit the diagram of usually set alignment films, transparent insulating layer, the antireflection film be arranged on substrate 10a etc.
Referring to Fig. 3 ~ Fig. 6, the manufacture method of sandwich construction liquid crystal optical device 100 of the present invention is described.Fig. 4 ~ Fig. 6 only represents 1 liquid crystal cell (liquid crystal cell).
As shown in Figure 3, when manufacturing sandwich construction liquid crystal optical device 100, first, the 1st unit element 10, the 2nd unit element 20 and the 3rd unit element 30 is made respectively.In addition, between the 1st unit element 10 and the 2nd unit element 20, arrange and stacked multiple (4) the 3rd unit element 30.
Such as, as the step S11 in Fig. 3 ~ S19 (the 1st unit element formation process), make the 1st unit element 10.First, the substrate (situation of an element form substrate 10a) of size to top carries out processing (S11) according to the rules.Such as, according to the size of 200 × 200mm, the foliated glass that thickness is 300 μm is processed.Multiple element can be formed in this foliated glass.Then, the surface in the outside of substrate up arranges ito film, form electrode (S12)., carry out layout process by etching etc. here, the 1st drive electrode 11 and the 2nd drive electrode 12 are formed to each element.Then, the surface of the inner side (side of filling liquid crystal) of substrate up arranges high resistance membrane (S13).Then, form alignment films, carry out orientation process (S14).Alignment films is the liquid crystal orientation films such as polyimide (Pl:polyimide).After orientation process, the surface of substrate is up formed antireflection film (AR film).
In addition, the substrate (situation of an element form substrate 10b) of size to below carries out processing (S15) according to the rules.Such as, according to the size of 200 × 200mm, the foliated glass that thickness is 300 μm is processed.Then, the surface of the inner side (side of filling liquid crystal) of the substrate of below forms alignment films, carries out orientation process (S16).Then, printing is mixed into the encapsulant (S17) of band gap material.Here, the encapsulant for enclosing liquid crystal is annularly printed respectively by each element.
Then, liquid crystal drip device is adopted, by the inner side (S18) of liquid crystal drip-injection in the encapsulant of ring-type.Then, as shown in Fig. 4 (a), by the substrate of top and the substrate in combination of below, assembling box (S19).Then, according to the thickness of 30 μm, the substrate of below is ground (S20).That is, the thickness of the substrate of below is reduced to the line C place in Fig. 4 (a).Thus, the 1st unit element 10 shown in Fig. 4 (b) is obtained.Ginding process adopts Mechanical Method or etching method.
In addition, as the step S21 in Fig. 3 ~ S29 (the 2nd unit element formation process), make the 2nd unit element 20.First, the substrate (situation of an element form substrate 20a) of size to top carries out processing (S21) according to the rules.Such as, according to the size of 200 × 200mm, the foliated glass that thickness is 300 μm is processed.Then, the surface of the inner side (side of filling liquid crystal) of substrate up forms alignment films, carries out orientation process (S22).
In addition, the substrate (situation of an element form substrate 20b) of size to below carries out processing (S24) according to the rules.Such as, according to the size of 200 × 200mm, the foliated glass that thickness is 300 μm is processed.Then, the surface of the inner side (side of filling liquid crystal) of the substrate of below arranges ito film, form electrode (S24).Here, carry out layout process by etching etc., each element forms public electrode.In the operation forming electrode 20, ground terminal V is set on the substrate 10
o.Then, the surface of the inner side (side of filling liquid crystal) of the substrate of below forms alignment films, carries out orientation process (S25).Then, printing is mixed into the encapsulant (S26) of band gap material.Here, the encapsulant for enclosing liquid crystal is annularly printed respectively by each element.
Then, liquid crystal drip device is adopted, at the inner side dispenser method (S27) of the encapsulant of ring-type.Then, as shown in Fig. 5 (a), by the substrate of top and the substrate in combination of below, assembling box (S28).Afterwards, according to the thickness of 30 μm, the substrate of top is ground (S29).That is, the thickness of the substrate of below is reduced to the line C place in Fig. 5 (a).Thus, the 2nd unit element 20 shown in Fig. 5 (b) is obtained.
In addition, as step S31 ~ 38 (the 3rd unit element formation process) in Fig. 3, make the 3rd unit element 30.First, the substrate (situation of an element form substrate 30a) of size to top carries out processing (S31) according to the rules.Such as, according to the size of 200 × 200mm, the foliated glass that thickness is 300 μm is processed.Then, the surface of the inner side (side of filling liquid crystal) of substrate up forms alignment films, carries out orientation process (S32).
In addition, the substrate (situation of an element form substrate 30b) of size to below carries out processing (S33) according to the rules.Such as, according to the size of 200 × 200mm, the foliated glass that thickness is 300 μm is processed.Then, the surface of the inner side (side of filling liquid crystal) of the substrate of below forms alignment films, carries out orientation process (S34).Then, printing is mixed into the encapsulant (S35) of band gap material.Here, the encapsulant for enclosing liquid crystal is annularly printed respectively by each element.
Then, liquid crystal drip device is adopted, at the inner side dispenser method (S36) of the encapsulant of ring-type.Then, as shown in Fig. 6 (a), by the substrate of top and the substrate in combination of below, assembling box (S37).Then, according to the thickness of 30 μm, the substrate of top and the substrate of below are ground (S38) respectively.That is, the thickness of the substrate of top and the substrate of below is reduced to the line C place in Fig. 6 (a).Thus, the 3rd unit element 30 shown in Fig. 6 (b) is obtained.
Then, between 1 the 1st unit element, 10 and 1 the 2nd unit element 20, arrange and stacked 4 the 3rd unit elements 30 (S41).Here, in order to form polarisation of light, unpolarized lens, the direction of orientation of the liquid crystal of 2 the 3rd unit elements 30 of the 1st unit element 10 and top, as the arrow in Fig. 2, is the direction (left and right directions) parallel with paper.The direction of orientation of the liquid crystal of 2 the 3rd unit elements 30 of the 2nd unit element 20 and below, as the arrow in Fig. 2, is the direction perpendicular with paper.That is, the direction of orientation of the liquid crystal of the direction of orientation of the liquid crystal of 2 the 3rd unit elements 30 of the 1st unit element 10 and top and 2 the 3rd unit elements 30 of the 2nd unit element 20 and below is arranged mutually orthogonally.In addition, bonding by optical cement between each element.
Then, adopt food slicer etc., be each sandwich construction liquid crystal optical device 100 by the assembling part cutting with stacked multiple liquid crystal cells, be namely cut into product size (S42).Thus, the sandwich construction liquid crystal optical device 100 shown in Fig. 1 is obtained.
Like this, in the present embodiment, sandwich construction liquid crystal optical device 100 comprises: the 1st unit element 10, is filled with liquid crystal 40 being formed with between the substrate 10a of segment electrode and the substrate 10b not forming electrode; 2nd unit element 20, is filled with liquid crystal 40 not formed between the substrate 20a of electrode and the substrate 20b being formed with public electrode; And the 3rd unit element 30, be filled with liquid crystal 40 what do not form electrode between substrate 30a, 30b, between the 1st unit element 10 and the 2nd unit element 20, configuration stacked multiple (4) the 3rd unit element 30.After the substrate carrying out bonding side of constituent parts element is ground to form specific thickness, carry out stacked.
When manufacturing sandwich construction liquid crystal optical device 100, first, the 1st unit element 10, the 2nd unit element 20 and the 3rd unit element 30 is made respectively.Then, between the 1st unit element 10 and the 2nd unit element 20, arrange and stacked 4 the 3rd unit elements 30.In addition, the direction of orientation of the liquid crystal of the direction of orientation of the liquid crystal of 2 the 3rd unit elements 30 of the 1st unit element 10 and top and 2 the 3rd unit elements 30 of the 2nd unit element 20 and below is arranged mutually orthogonally.
Thus, can handling ease be made, and the loading of liquid crystal and sufficient optical range L can be guaranteed, response speed and light transmission can be improved.
In addition, because the substrate not forming electrode is processed according to the rules under the state being sealed with liquid crystal thinner thickness, therefore can prevent substrate deformation (flexure) when enclosing liquid crystal, obtaining uniform optical characteristics.In addition, add man-hour at comparatively unfertile land to substrate, substrate does not produce flexure, can be processed into smooth face.
In addition, the direction of orientation of the direction of orientation of the liquid crystal of the 1st unit element 10 and a part the 3rd unit element 30 and the liquid crystal of the 2nd unit element 20 and other the 3rd unit element 30 is arranged mutually orthogonally, thus compared with existing double liquid-crystal lens, electrode layer (ito film), high resistance rete are few, light transmission can improve significantly, and can cut down manufacturing cost.
Further, due to before the box assembling stage of constituent parts element, adopt thicker glass substrate, therefore can prevent substrate deformation when enclosing liquid crystal, obtaining uniform optical characteristics.
In addition, due to compared with existing double liquid-crystal lens, the quantity of electrode is few, and therefore structure is simple, easy to manufacture, can cut down manufacturing cost.
In addition, owing to being made up of unit element, therefore compared with existing double liquid-crystal lens, when forming sandwich construction, do not need to aim at, assembling easily thus.
By applying voltage being arranged between the electrode on substrate 10a, 20b, the molecular orientation of liquid crystal can be controlled, can optical characteristics be changed.So, the response time as liquid crystal optical device can be shortened, can be used as the liquid-crystal aberration correcting element and actual use that adopt in order to the aberration of generation when the record to light pickup (pickup), regeneration corrects.
Further, in the above-described embodiment, the number of the 3rd unit element 30 is 4, but is not limited to this.Also can adopt such as 2,6,8 the 3rd unit elements 30 and form.In addition, as special lens, the number of the 3rd unit element 30 also can for posting numerical example as 1,3,5 etc.
In addition, in the above-described embodiment, following example is illustrated, wherein, in sandwich construction liquid crystal optical device 100, the direction of orientation of the liquid crystal of 2 the 3rd unit elements 30 of the 1st unit element 10 side is identical with the 1st unit element 10, and the direction of orientation of the liquid crystal of 2 the 3rd unit elements 30 of the 2nd unit element 20 side is identical with the 2nd unit element 20, but, be not limited to this.Also can arrange according to the orthogonal mode of the direction of orientation of the liquid crystal of the unit element making to adjoin.
In addition, in the manufacture method of above-mentioned sandwich construction liquid crystal optical device 100, employing is of a size of to the foliated glass of 200 × 200mm, forms multiple element thereon, the example finally cut according to product size is illustrated, but, be not limited to this.
Industrial utilizability
The present invention can be used as the liquid crystal optical device with automatic focusing function, grand micro-handoff functionality built-in in the ultraminiature camera in portable telephone, portable information terminating machine (PDA), digital device etc., or as the liquid crystal optical device adopted in order to the aberration produced when the record to pickup (pickup), regeneration corrects in optical disc apparatus.
The explanation of label
Claims (6)
1. a sandwich construction liquid crystal optical device,
Comprise: the 1st unit element, be sealed with liquid crystal being formed with between the substrate of segment electrode and the substrate not forming electrode, the above-mentioned substrate not forming electrode is thinning under the state being sealed with above-mentioned liquid crystal to be processed;
2nd unit element, is sealed with liquid crystal being formed with between the substrate of public electrode and the substrate not forming electrode, and the above-mentioned substrate not forming electrode is thinning under the state being sealed with above-mentioned liquid crystal to be processed; And
3rd unit element, is sealed with liquid crystal between 2 substrates not forming electrode, and above-mentioned 2 substrates are thinning under the state being sealed with above-mentioned liquid crystal to be processed,
Between above-mentioned 1st unit element and the 2nd unit element, configure and be laminated with multiple above-mentioned 3rd unit element,
The feature of above-mentioned sandwich construction liquid crystal optical device is,
As above-mentioned segment electrode, be formed with the 1st drive electrode and the 2nd drive electrode, circular above-mentioned 2nd drive electrode is configured with at the central part of substrate, above-mentioned 1st drive electrode is had in its circumferential arrangement, above-mentioned 1st drive electrode is connected with the 1st formed on a surface of a substrate drive terminal, above-mentioned 2nd drive electrode is connected with the 2nd formed on a surface of a substrate drive terminal
The electrode of circle of above-mentioned public electrode for being formed at the central portion of substrate, is connected with terminal set in hole through on the thickness direction of substrate.
2. sandwich construction liquid crystal optical device according to claim 1, is characterized in that,
The above-mentioned substrate not forming electrode is thinning under the state being sealed with above-mentioned liquid crystal is worked into 30 μm.
3. sandwich construction liquid crystal optical device according to claim 1, is characterized in that,
Above-mentioned 1st unit element and a part direction of orientation of liquid crystal of above-mentioned 3rd unit element and the direction of orientation of the liquid crystal of above-mentioned 2nd unit element and other above-mentioned 3rd unit element be configured to mutually orthogonal.
4. a manufacture method for sandwich construction liquid crystal optical device, comprising:
1st unit element formation process, the encapsulant for the formation of multiple ring-types of multiple liquid crystal cell is formed and after enclosing liquid crystal being formed between the substrate of segment electrode and the substrate not forming electrode, thinning processing does not form the substrate of electrode, thus forms the 1st unit element;
2nd unit element formation process, the encapsulant for the formation of multiple ring-types of multiple liquid crystal cell is formed and after enclosing liquid crystal being formed between the substrate of public electrode and the substrate not forming electrode, thinning processing does not form the substrate of electrode, thus forms the 2nd unit element;
3rd unit element formation process, forms the encapsulant for the formation of multiple ring-types of multiple liquid crystal cell and after enclosing liquid crystal between 2 substrates not forming electrode, thinning processing 2 substrates, thus forms the 3rd unit element; And
Lamination process, between above-mentioned 1st unit element and the 2nd unit element, configures and stacked multiple above-mentioned 3rd unit element;
The feature of the manufacture method of above-mentioned sandwich construction liquid crystal optical device is,
Also comprise cutting action, be each sandwich construction liquid crystal optical device by the assembling part cutting with stacked multiple liquid crystal cells, be cut into product size,
In above-mentioned 1st unit element formation process, as above-mentioned segment electrode, form the 1st drive electrode and the 2nd drive electrode, at above-mentioned 2nd drive electrode that the central part configuration of substrate is circular, at above-mentioned 1st drive electrode of its circumferential arrangement, above-mentioned 1st drive electrode is connected with the 1st formed on a surface of a substrate drive terminal, and above-mentioned 2nd drive electrode is connected with the 2nd formed on a surface of a substrate drive terminal
In above-mentioned 2nd unit element formation process, the electrode of circle of above-mentioned public electrode for being formed at the central portion of substrate, is connected with terminal set in hole through on the thickness direction of substrate.
5. the manufacture method of sandwich construction liquid crystal optical device according to claim 4, is characterized in that,
Above-mentioned liquid crystal adopts drip to enclose.
6. the manufacture method of sandwich construction liquid crystal optical device according to claim 4, is characterized in that,
In above-mentioned lamination process, above-mentioned 1st unit element and a part direction of orientation of liquid crystal of above-mentioned 3rd unit element and the direction of orientation of the liquid crystal of above-mentioned 2nd unit element and other above-mentioned 3rd unit element be configured to mutually orthogonal.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010039282A JP5491903B2 (en) | 2010-02-24 | 2010-02-24 | Multi-layer structure liquid crystal optical element and manufacturing method thereof |
| JP2010-039282 | 2010-02-24 | ||
| PCT/JP2011/054004 WO2011105437A1 (en) | 2010-02-24 | 2011-02-23 | Liquid crystal optical element having multilayer structure, and method for manufacturing the liquid crystal optical element |
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| CN102804048A CN102804048A (en) | 2012-11-28 |
| CN102804048B true CN102804048B (en) | 2015-07-29 |
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| CN201180011260.3A Expired - Fee Related CN102804048B (en) | 2010-02-24 | 2011-02-23 | Sandwich construction liquid crystal optical device and manufacture method thereof |
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| JP (1) | JP5491903B2 (en) |
| KR (1) | KR20120120409A (en) |
| CN (1) | CN102804048B (en) |
| WO (1) | WO2011105437A1 (en) |
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| KR20140125768A (en) * | 2012-01-30 | 2014-10-29 | 니폰 덴키 가라스 가부시키가이샤 | Liquid-crystal lens and liquid-crystal lens-cell |
| JP5921251B2 (en) * | 2012-02-21 | 2016-05-24 | 日本電気硝子株式会社 | LCD lens |
| JP5876734B2 (en) * | 2012-01-30 | 2016-03-02 | 日本電気硝子株式会社 | LCD lens |
| CN108227286A (en) * | 2018-01-25 | 2018-06-29 | 惠州市华星光电技术有限公司 | A kind of display panel and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006313243A (en) * | 2005-05-09 | 2006-11-16 | Konica Minolta Holdings Inc | Liquid crystal lens |
| JP2007213081A (en) * | 2003-02-06 | 2007-08-23 | Toshiba Corp | Three-dimensional image display apparatus |
| CN101025501A (en) * | 2006-02-20 | 2007-08-29 | 那纳须株式会社 | Reflexible color LCD and its manufacturing method |
| JP2009192931A (en) * | 2008-02-15 | 2009-08-27 | Fuji Xerox Co Ltd | Display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004045984A (en) * | 2002-07-15 | 2004-02-12 | Ricoh Co Ltd | Layered substrate, method for manufacturing layered substrate, layered liquid crystal display element, and method for manufacturing layered liquid crystal display element |
| WO2005036243A1 (en) * | 2003-10-14 | 2005-04-21 | Binit Corporation | Liquid crystal aberration correcting element, and production method therefore |
-
2010
- 2010-02-24 JP JP2010039282A patent/JP5491903B2/en active Active
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- 2011-02-23 WO PCT/JP2011/054004 patent/WO2011105437A1/en active Application Filing
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007213081A (en) * | 2003-02-06 | 2007-08-23 | Toshiba Corp | Three-dimensional image display apparatus |
| JP2006313243A (en) * | 2005-05-09 | 2006-11-16 | Konica Minolta Holdings Inc | Liquid crystal lens |
| CN101025501A (en) * | 2006-02-20 | 2007-08-29 | 那纳须株式会社 | Reflexible color LCD and its manufacturing method |
| JP2009192931A (en) * | 2008-02-15 | 2009-08-27 | Fuji Xerox Co Ltd | Display device |
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| Publication number | Publication date |
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| JP2011175105A (en) | 2011-09-08 |
| CN102804048A (en) | 2012-11-28 |
| WO2011105437A1 (en) | 2011-09-01 |
| KR20120120409A (en) | 2012-11-01 |
| JP5491903B2 (en) | 2014-05-14 |
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