CN100394256C - Liquid crystal aberration correcting element, and production method therefore - Google Patents
Liquid crystal aberration correcting element, and production method therefore Download PDFInfo
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- CN100394256C CN100394256C CNB2004800300477A CN200480030047A CN100394256C CN 100394256 C CN100394256 C CN 100394256C CN B2004800300477 A CNB2004800300477 A CN B2004800300477A CN 200480030047 A CN200480030047 A CN 200480030047A CN 100394256 C CN100394256 C CN 100394256C
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
- G11B7/1369—Active plates, e.g. liquid crystal panels or electrostrictive elements
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
- G11B7/13925—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means
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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
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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
- G02F1/133351—Manufacturing of individual cells out of a plurality of cells, e.g. by dicing
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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
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
-
- 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
- G02F2203/00—Function characteristic
- G02F2203/18—Function characteristic adaptive optics, e.g. wavefront correction
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- Mathematical Physics (AREA)
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- Engineering & Computer Science (AREA)
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Abstract
A novel liquid crystal aberration correcting element capable of being reduced in size and weight compared to a conventional element. The liquid crystal aberration correcting element comprises a plurality of substrates formed with electrodes and liquid crystal held between the plurality of substrates, wherein thickness-direction holes (30A, 30B, 30C) are drilled in at least one of the plurality of substrates, terminals (31A, 31B, 31C) for connection the electrodes are provided to the holes, and an injection port (32) for injecting liquid crystal is also provided in the substrates.
Description
Technical field
The present invention relates in optical disc apparatus liquid-crystal aberration correcting element and the manufacture method thereof used for the aberration of proofreading and correct the record in optical pickup unit and being produced when reproducing.
Background technology
In the past, as carrier, known had various CDs such as CD, DVD.Uneven and warpage etc. produces aberration (deflection of focus point) to these CDs owing to the thickness in when rotation, therefore requires to proofread and correct the precision that this aberration improves record and reproduction.
As the technology of proofreading and correct above-mentioned aberration, known useful actuator drives the mode of collimation lens and utilizes the mode of liquid-crystal aberration correcting element.
The former mode has owing to need actuator and optical pickup unit complicates, and can not be adapted to high-precision calibration problem fully.
To this, liquid-crystal aberration correcting element concentric ring-shaped ground forms the electrode of liquid crystal board, and carries out different phase control thus in the central portion of light beam and outer edge.Because this liquid-crystal aberration correcting element is configured on the same optical axis jointly with object lens in optical pickup unit, therefore, expectation energy miniaturization and lightweight are so that obtain good driving.
As former liquid-crystal aberration correcting element, put down in writing the aberration correcting element of following this spline structure in patent documentation 1, this aberration correcting element has: have first electrode layer with a plurality of electrode part of the corresponding concentric circles of distribution of the spherical aberration that produces in CD; With the opposed the second electrode lay of above-mentioned first electrode layer; Be clipped in above-mentioned first and second electrode layers, make the light beam that passes through produce the liquid crystal that changes with the voltage respective phase that imposes on above-mentioned first and second electrode layers.Have, first and second electrode layers are respectively formed on the transparent glass substrate again.
In above-mentioned existing liquid-crystal aberration correcting element, shown in Figure 4 as patent documentation 1 connects lead-in wire in each electrode part, and draws from the side of element.Usually, a glass substrate is formed longer, the lead-in wire of drawing is pooled to be located at long terminal on that part of, and utilizes flexible print wiring board to be connected to the circuit part that is used to control voltage from this terminal than another.
Under this situation because the periphery of the terminal on the glass substrate is applied power, therefore, if want to make glass substrate thin, just might produce break bad with fragment etc., therefore, on this aspect of intensity to thickness restricted (0.3mm).Thereby, can not realize the sufficient lightweight of element.
In addition, as mentioned above, owing to form one substrate longer than another, therefore, element correspondingly becomes greatly, and owing to the weight of element self is unbalance the problem that is difficult to the high precision driving is arranged.
In addition, during element before making, make a plurality of substrates that are formed with electrode opposed, inject also encapsulated liquid crystals from the gap between the substrate of its side.Therefore, need to make one by one the combination that size is processed to the little substrate of several mm, and, the high problem of production efficiency difference and cost is arranged respectively to its injection and sealing of carrying out liquid crystal.
In addition, as mentioned above,, therefore, need carry out product examination, also the problem of effective rate variance to each element of final processing owing to compile the side that the terminal of lead-in wire is located at element.
Patent documentation 1: TOHKEMY 2002-237077 communique (claim 1, paragraph 0012, paragraph 0014, Fig. 4)
Summary of the invention
Therefore, the objective of the invention is to, provide a kind of and can realize miniaturization and light-weighted new liquid-crystal aberration correcting element than former element.
In addition, the objective of the invention is to, provide a kind of production efficiency the good and manufacture method of liquid-crystal aberration correcting element cheaply.
In order to address the above problem, liquid-crystal aberration correcting element of the present invention, have a plurality of substrates that are formed with electrode and the liquid crystal that is clipped and enclose the inboard by above-mentioned a plurality of substrates by encapsulant, in being provided with the zone of above-mentioned liquid crystal, pass through light beam, it is characterized in that, on in above-mentioned a plurality of substrates at least one, on thickness direction, bore a hole, in above-mentioned hole, be provided for being connected respectively to the terminal that is formed on the above-mentioned electrode on above-mentioned a plurality of substrate, and, be formed with the inlet that is used to inject liquid crystal on the substrate in above-mentioned hole being installed with, above-mentioned terminal and above-mentioned inlet are located at by the remainder beyond the zone of light beam.
In order to address the above problem, liquid-crystal aberration correcting element of the present invention, have a plurality of substrates that are formed with electrode and the liquid crystal that is clipped and enclose the inboard by above-mentioned a plurality of substrates by encapsulant, in being provided with the zone of above-mentioned liquid crystal, pass through light beam, it is characterized in that, on the substrate in above-mentioned a plurality of substrates, on thickness direction, bore a hole, in above-mentioned hole, be provided for being connected respectively to the terminal that is formed on the above-mentioned electrode on above-mentioned a plurality of substrate, and, be formed with the inlet that is used to inject liquid crystal on the substrate in above-mentioned hole being installed with, above-mentioned terminal and above-mentioned inlet are located at by the remainder beyond the zone of light beam.
In addition, the manufacture method of liquid-crystal aberration correcting element of the present invention is characterised in that to have: form the operation with corresponding terminal of a plurality of liquid-crystal aberration correcting elements and inlet on as the substrate of mother metal; Form the operation of electrode; For the above-mentioned substrate that is formed with terminal, inlet and electrode, be combined to form the operation of the other substrate of electrode; After the combination, inject the operation of liquid crystal from inlet; Cutting is the operation of each liquid-crystal aberration correcting element.
The invention effect
Liquid-crystal aberration correcting element of the present invention owing on the surface of substrate, bore a hole, with the part in this hole as terminal, therefore, be provided with at side terminal before element compare, substrate is not applied undue power.Thereby, can adopt thinner substrate, as a result of, can realize the lightweight of element.
In addition, by on the surface of substrate, disposing terminal, correspondingly can realize the miniaturization of element.In addition, because the weight balancing of element self is also good, therefore, can carry out the high-precision driving of optical pickup unit.
In addition, according to the manufacture method of liquid-crystal aberration correcting element of the present invention, owing to all forming the operation of terminal and the operation of injection liquid crystal etc. under the state of cutting for the mother metal before each element, therefore, can enhance productivity, reduce cost significantly.
In addition, owing to when checking each element, also can carry out under the state at mother metal, therefore, can reach high-level efficiency.
Description of drawings
Fig. 1 is the planimetric map that the liquid-crystal aberration correcting element of embodiment 1 is shown.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the planimetric map that the liquid-crystal aberration correcting element of embodiment 2 is shown.
Fig. 4 is the process flow diagram that the manufacturing process of liquid-crystal aberration correcting element is shown.
Fig. 5 is the process flow diagram that the manufacturing process of liquid-crystal aberration correcting element is shown.
Fig. 6 is the figure that the state of the S102 among Fig. 4 is shown.
Fig. 7 is the figure that the state of the S102 among Fig. 4 is shown.
Fig. 8 is the figure that the state of the S104 among Fig. 4 is shown.
Fig. 9 is the figure that the state of the S106 among Fig. 4 is shown.
Figure 10 is the figure that the state of the S306 among Fig. 5 is shown.
The explanation of Reference numeral
1 liquid-crystal aberration correcting element
10,11 substrates
101 bights
20,21,22,23,24,25 electrodes
30A, 30B, 30C, 30D hole
31A, 31B, 31C, 31D terminal
32 inlets
40 liquid crystal
50 encapsulants
51 sealings
60 conductive material
70 masks
100 substrates as mother metal
Embodiment
The invention provides a kind of liquid-crystal aberration correcting element, have a plurality of substrates that are formed with electrode and the liquid crystal that is clipped and enclose the inboard by above-mentioned a plurality of substrates by encapsulant, in being provided with the zone of above-mentioned liquid crystal, pass through light beam, on in above-mentioned a plurality of substrates at least one, on thickness direction, bore a hole, in above-mentioned hole, be provided for being connected to the terminal of above-mentioned electrode, and, be formed with the inlet that is used to inject liquid crystal on the substrate in above-mentioned hole being installed with, above-mentioned terminal and above-mentioned inlet are located at by the remainder beyond the zone of light beam (first invention).
In addition, the invention provides a kind of liquid-crystal aberration correcting element, have a plurality of substrates that are formed with electrode and the liquid crystal that is clipped and enclose the inboard by above-mentioned a plurality of substrates by encapsulant, in being provided with the zone of above-mentioned liquid crystal, pass through light beam, on the substrate in above-mentioned a plurality of substrates, on thickness direction, bore a hole, in above-mentioned hole, be provided for being connected to the terminal of above-mentioned electrode, and, be formed with the inlet that is used to inject liquid crystal on the substrate in above-mentioned hole being installed with, above-mentioned terminal and above-mentioned inlet are located at by the remainder beyond the zone of light beam (second invention).
According to these structures, the terminal that is used for being connected with electrode is configured in the surface of substrate by the hole.In addition, according to these structures, on the surface of a substrate, compile the terminal that is connected with electrode of configuration and the inlet of liquid crystal.
In addition, the invention is characterized in, in the liquid-crystal aberration correcting element of above-mentioned first or second invention, substrate is formed quadrilateral, bore a hole near the bight beyond the border circular areas that the light beam in aforesaid substrate passes through.(the 3rd invention).
According to this structure, the space as forming the hole effectively utilizes near the bight of substrate.
In addition, in the present invention, a kind of manufacture method of liquid-crystal aberration correcting element is provided, and is the manufacture method of liquid-crystal aberration correcting element of above-mentioned the 3rd invention, has: form the operation with corresponding terminal of a plurality of liquid-crystal aberration correcting elements and inlet on as the substrate of mother metal; Form the operation of electrode; For the above-mentioned substrate that is formed with terminal, inlet and electrode, be combined to form the operation of the other substrate of electrode; After the combination, inject the operation of liquid crystal from inlet; Cutting is the operation (the 4th invention) of each liquid-crystal aberration correcting element.
According to this structure, in the manufacturing of liquid-crystal aberration correcting element, all under state, carry out as the substrate of mother metal up to final operation.
Below, describe about being used to implement best mode of the present invention.
At first, describe about embodiments of the present invention 1.Fig. 1 is the planimetric map of liquid-crystal aberration correcting element, and Fig. 2 is the A-A sectional view of Fig. 1.As depicted in figs. 1 and 2, roughly constitute liquid-crystal aberration correcting element 1 by clamping liquid crystal 40 with the substrate 11 that is formed with electrode 22 (common electrode) by the substrate 10 that is formed with the electrode 20,21 (segment electrodes) that is split into concentric circles.Have, in Fig. 2, operated by rotary motion is between electrode 20,21 and the liquid crystal 40 and liquid crystal orientation film, transparent insulating layer between electrode 22 and the liquid crystal 40 and be arranged on antireflection film on the substrate 10,11 etc. and omitted diagram again.In addition, utilize encapsulant 50 that liquid crystal 40 is enclosed in the inboard.
This liquid-crystal aberration correcting element 1 passes through light beam in the zone that is provided with liquid crystal 40, by applying different voltage to electrode 20 with electrode 21 this moment, giving different liquid crystal aligning states in the position of electrode 20 with the position of electrode 21 is phase differential, proofreaies and correct the spherical aberration of light thus.
As substrate 10,11, use transparency carriers such as glass substrate.In addition, as electrode 20,21 and electrode 22, suitably adopt the transparency electrodes such as ITO that are formed with indium-tin oxide film.
Then, in this embodiment 1, bore a hole on the thickness direction of substrate 10 30A, 30B, 30C are provided for being connected to terminal 31A, 31B, the 31C of electrode 20,21,22 respectively in these holes.About being formed on the electrode 22 (common electrode) of substrate 11 sides, by being connected through the terminal 31A of conductive material 60 with substrate 10 sides.Have again, form each terminal along the metals such as inner peripheral surface electroplated Ni-Au in hole.
Each terminal of configuration on the face of substrate 10 as described above, with side at substrate compile the configuration terminal before element compare, the power that element is setovered not, thus be not easy to produce break and fragment etc. bad.Thereby, can make substrate 10,11 thinner (for example, 0.2mm), can the lightweight element.Specifically, and compared in the past, can lightweight more than 40% (from before the terminal effect of changing into the terminal that face disposes approximately be 10%, approximately be 33% with the thickness of substrate from the effect that 0.3mm changes into 0.2mm).
In addition, in present embodiment 1, on the face of substrate 10, be formed with the inlet 32 that is used between substrate 10,11, injecting liquid crystal 40.The shape of inlet 32 is circle, ellipse etc., utilizes encapsulant suitably to seal after having injected liquid crystal 40.
Particularly in the example of Fig. 1,, therefore, as described later, can improve the production efficiency of element because the inlet 32 of terminal 31A, 31B, 31C and liquid crystal all is configured on the substrate 10 in the opposed substrate.
In addition, in the example of Fig. 1, border circular areas (being formed with the zone of electrode 20,21) that light beam passes through in addition, form near the inlet 32 that forms porose 30A, 30B, 30C and liquid crystal the bight 101 on the tetragonal substrate 10.By doing like this, owing to can effectively utilize remainder on the substrate 10 that light beam do not pass through as the position of terminal etc., therefore, further miniaturized element.In addition, by terminal etc. is configured in bight 101, can make the weight balancing optimization of element.
Have, in the element of the liquid crystal that former utilization is general (liquid crystal display cells etc.), frame portion (remainder of substrate) is dwindled in requirement as far as possible along with the expansion of viewing area again.In addition, because number of terminals is also cut apart the trend that driving direction etc. has increase accordingly with height, therefore, do not conceive the bight that effectively utilizes substrate, the present invention also can independently realize.
Have again, in above-mentioned embodiment 1, about concentric circles formed 2 electrodes 20,21 situation be illustrated, but also can cut apart formation in further many grades ground.In addition, the configuration figure of electrode is not limited to concentric circles, for example also can by about the electrode cut apart constitute.Under this situation, can proofread and correct coma aberration well by the generations such as warpage of CD.
In addition, opposed substrate is not limited to aforesaid a pair of, also can be that to clamp liquid crystal than this substrate of Duoing stacked.
As mentioned above, the inlet of each terminal and liquid crystal is preferably concentrated and is arranged on the substrate 10, but also can be separately positioned on substrate 10 and the substrate 11.For example, can be the terminal that electrode 22 is connected with common electrode also in substrate 11 side settings.
In addition, in the example of Fig. 1, the figure of mutually non-touching electrode 20 and electrode 21 directly is connected on each terminal, but in addition, for example also can be after each electrode pattern that the border circular areas that has formed by closure constitutes, wait with lead-in wire to connect each electrode and each terminal.
Then, based on Fig. 3 embodiments of the present invention 2 are described.
As shown in Figure 3, bore a hole on the thickness direction of substrate 10 30A, 30B, 30C, 30D are provided for terminal 31A, the 31B, 31C, the 31D that are connected with electrode 23,24,25 with not shown common electrode respectively in these holes.In addition, inject liquid crystal from the gap between the substrate of element side, with sealing 51 sealing inlets.
In this example, because with on 4 bights 101 of each terminal arrangement in substrate 10, therefore, weight balancing the best of element self.
Other structures and above-mentioned embodiment 1 are same.
Aforesaid liquid-crystal aberration correcting element 1 can constitute optical pickup unit jointly with for example LASER Light Source, polariscope, 1/2 wavelength plate, 1/4 wavelength plate, object lens and photo detector etc., is encased in the optical disc apparatus then and uses.
Liquid-crystal aberration correcting element of the present invention is because small-sized and light weight, therefore, can be used in best in the high density compact discs such as the BD of future generation (Blu-ray Disc) that requires High Accuracy Control and multilayer disc.
Below, the manufacture method of liquid-crystal aberration correcting element of the present invention is described based on Fig. 4～Figure 10.This manufacture method can be used for the element shown in the above-mentioned embodiment 1 best.
At first, as Fig. 4 and shown in Figure 6, about the substrate-side (substrate 10 sides) of terminal etc. is set, on as the substrate 100 of mother metal, form and the corresponding hole 30A of a plurality of liquid-crystal aberration correcting elements, 30B, 30C and liquid crystal injecting port 32 (S101), terminal 31A, 31B, 31C (S102) are set in each hole.When each terminal is set, as shown in Figure 7, form mask 70 by the part beyond the hole after, become after the metal of terminal by formation such as plating, removal mask 70 carries out best.
Then, utilizing evaporation etc. on the position of regulation, to form electrode material (S103), and carrying out composition, making electrode 20,21 (S104) by etching etc.This state shown in Fig. 8.Have again, the operation of above-mentioned terminal and the operation of formation electrode are set also can carry out front and back.
Then, behind the stacked as required transparent insulating layer, the liquid crystal orientation film of formation PVA etc., and rub (S105).In addition, by printing etc., be used to enclose the encapsulant 50 (S106) of liquid crystal in the arranged outside of electrode 20.This state shown in Fig. 9.
Another face about opposed other substrate (substrate 11 sides), with above-mentioned same, forms electrode (S201) for the substrate as mother metal, carries out composition and as common electrode (electrode 22).In addition, rub (S203) behind the formation liquid crystal orientation film, wait the conductive material (S204) that is provided for connecting common electrode and terminal by printing.
Then, with the above-mentioned substrate and the mutually opposed combination of other substrate (S301) that is formed with common electrode etc. that has been formed with terminal etc.This operation is undertaken by waiting with the bonding agent applying across distance piece.
Then, inject liquid crystal (S302) from inlet 32 to the inboard of encapsulant 50, and seal.Then, use to be arranged in, carry out the performance review (S303) of element as each terminal on the substrate 100 of mother metal.Do NG mark (S305) for checking underproof place.Afterwards, forming antireflection film (AR film) (S304) as on whole of the substrate of mother metal.The AR film can be formed on substrate 10 sides or substrate 11 sides some, also can be formed on both sides.
At last, as shown in figure 10, using dicer etc., will be each liquid-crystal aberration correcting element 1 (S307) as the substrate cutting of mother metal, through dispatch from the factory after the inspection operation (S307) of single-piece (S308).Have again, will in the inspection of single-piece, become the discarded or place under repair of underproof element, perhaps transfer to and reproduce in the operation (S309).
According to aforesaid manufacture method, because each terminal and the formation of electrode and the injection process of liquid crystal etc. all carry out under the state of cutting for the mother metal before each element, therefore, production efficiency is very high, can reduce cost significantly.In addition, also can adapt to production-scale expansion easily.
In addition, owing under the state of mother metal, injecting simultaneously and having sealed the inspection operation (S302) of carrying out behind the liquid crystal, therefore, industrial exceedingly useful.
Industrial utilizability
Liquid-crystal aberration correcting element of the present invention can be used in the correction optical pickup unit to optical disc apparatus The correction of the aberration that produces during record-playback.
Claims (4)
1. liquid-crystal aberration correcting element, have a plurality of substrates that are formed with electrode and the liquid crystal that is clipped and enclose the inboard by above-mentioned a plurality of substrates by encapsulant, in being provided with the zone of above-mentioned liquid crystal, pass through light beam, it is characterized in that, on in above-mentioned a plurality of substrates at least one, on thickness direction, bore a hole, in above-mentioned hole, be provided for being connected respectively to the terminal that is formed on the above-mentioned electrode on above-mentioned a plurality of substrate, and, be formed with the inlet that is used to inject liquid crystal on the substrate in above-mentioned hole being installed with, above-mentioned terminal and above-mentioned inlet are located at by the remainder beyond the zone of light beam.
2. liquid-crystal aberration correcting element, have a plurality of substrates that are formed with electrode and the liquid crystal that is clipped and enclose the inboard by above-mentioned a plurality of substrates by encapsulant, in being provided with the zone of above-mentioned liquid crystal, pass through light beam, it is characterized in that, on the substrate in above-mentioned a plurality of substrates, on thickness direction, bore a hole, in above-mentioned hole, be provided for being connected respectively to the terminal that is formed on the above-mentioned electrode on above-mentioned a plurality of substrate, and, be formed with the inlet that is used to inject liquid crystal on the substrate in above-mentioned hole being installed with, above-mentioned terminal and above-mentioned inlet are located at by the remainder beyond the zone of light beam.
3. liquid-crystal aberration correcting element as claimed in claim 1 or 2 is characterized in that, above-mentioned a plurality of substrates are formed quadrilateral, is through hole in the aforesaid substrate and is near the bight that is through beyond the border circular areas that the light beam in this substrate passes through.
4. the manufacture method of a liquid-crystal aberration correcting element, be the manufacture method of aforesaid right requirement 1 or 2 described liquid-crystal aberration correcting elements, have: form operation on as the substrate of mother metal with corresponding terminal of a plurality of liquid-crystal aberration correcting elements and inlet; Form the operation of electrode; For the above-mentioned substrate that is formed with terminal, inlet and electrode, be combined to form the operation of the other substrate of electrode; After the combination, inject the operation of liquid crystal from inlet; Cutting is the operation of each liquid-crystal aberration correcting element.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP353771/2003 | 2003-10-14 | ||
| JP2003353771 | 2003-10-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1867858A CN1867858A (en) | 2006-11-22 |
| CN100394256C true CN100394256C (en) | 2008-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004800300477A Expired - Fee Related CN100394256C (en) | 2003-10-14 | 2004-09-24 | Liquid crystal aberration correcting element, and production method therefore |
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| Country | Link |
|---|---|
| JP (1) | JP4008945B2 (en) |
| KR (1) | KR100761951B1 (en) |
| CN (1) | CN100394256C (en) |
| WO (1) | WO2005036243A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008203574A (en) * | 2007-02-20 | 2008-09-04 | Binit:Kk | Liquid crystal optical element and method for manufacturing the same |
| CN102112907B (en) * | 2008-06-06 | 2014-12-03 | 兰斯维克托公司 | Contact structure for a tunable liquid crystal optical device |
| JP5491903B2 (en) * | 2010-02-24 | 2014-05-14 | 株式会社スマートセンシング | Multi-layer structure liquid crystal optical element and manufacturing method thereof |
| JP5048117B2 (en) * | 2010-10-15 | 2012-10-17 | 株式会社びにっと | Liquid crystal optical element and manufacturing method thereof |
| CN104570520B (en) * | 2014-12-31 | 2017-12-26 | 上海天马微电子有限公司 | A kind of liquid crystal lens |
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| JPH09146120A (en) * | 1995-11-27 | 1997-06-06 | Sanyo Electric Co Ltd | Liquid crystal display device |
| JP2000122078A (en) * | 1998-10-21 | 2000-04-28 | Canon Inc | Liquid crystal cell and liquid crystal display device |
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| JP2002040465A (en) * | 2000-07-31 | 2002-02-06 | Seiko Epson Corp | Liquid crystal device and electronic equipment |
| JP2002109776A (en) * | 2000-07-24 | 2002-04-12 | Matsushita Electric Ind Co Ltd | Optical element, optical head, optical recording/ reproducing apparatus, and optical recording/ reproducing method |
| JP2003270656A (en) * | 2002-03-13 | 2003-09-25 | Citizen Watch Co Ltd | Liquid crystal optical element |
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| JPS5810728B2 (en) * | 1979-12-26 | 1983-02-26 | セイコーインスツルメンツ株式会社 | Method for manufacturing optical display panels |
| JPS5810728A (en) * | 1981-07-14 | 1983-01-21 | Kyocera Corp | Automatic dimming controlling circuit |
| JPS62106219A (en) * | 1985-11-05 | 1987-05-16 | Babcock Hitachi Kk | Device for preventing fluctuation in draft to fluidized bed furnace |
| JPS62106219U (en) * | 1985-12-25 | 1987-07-07 | ||
| DE68908221T2 (en) * | 1988-03-25 | 1993-12-23 | Guest John D | Manufacturing process for pipe coupling housings. |
| JPH0248927U (en) * | 1988-09-30 | 1990-04-05 | ||
| JPH08171095A (en) * | 1994-12-16 | 1996-07-02 | Sanyo Electric Co Ltd | Liquid crystal display device and production of liquid crystal display device |
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2004
- 2004-09-24 CN CNB2004800300477A patent/CN100394256C/en not_active Expired - Fee Related
- 2004-09-24 JP JP2005514550A patent/JP4008945B2/en not_active Expired - Fee Related
- 2004-09-24 KR KR1020067006257A patent/KR100761951B1/en not_active IP Right Cessation
- 2004-09-24 WO PCT/JP2004/013941 patent/WO2005036243A1/en active Application Filing
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|---|---|---|---|---|
| JPH09146120A (en) * | 1995-11-27 | 1997-06-06 | Sanyo Electric Co Ltd | Liquid crystal display device |
| JP2000122078A (en) * | 1998-10-21 | 2000-04-28 | Canon Inc | Liquid crystal cell and liquid crystal display device |
| JP2000214424A (en) * | 1999-01-27 | 2000-08-04 | Citizen Watch Co Ltd | Production of optically rotating optical element panel |
| JP2001100174A (en) * | 1999-07-07 | 2001-04-13 | Matsushita Electric Ind Co Ltd | Optical device, optical head and optical recording reproducing device |
| JP2002109776A (en) * | 2000-07-24 | 2002-04-12 | Matsushita Electric Ind Co Ltd | Optical element, optical head, optical recording/ reproducing apparatus, and optical recording/ reproducing method |
| JP2002040465A (en) * | 2000-07-31 | 2002-02-06 | Seiko Epson Corp | Liquid crystal device and electronic equipment |
| JP2003270656A (en) * | 2002-03-13 | 2003-09-25 | Citizen Watch Co Ltd | Liquid crystal optical element |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1867858A (en) | 2006-11-22 |
| JPWO2005036243A1 (en) | 2006-12-21 |
| KR100761951B1 (en) | 2007-10-02 |
| KR20060057637A (en) | 2006-05-26 |
| JP4008945B2 (en) | 2007-11-14 |
| WO2005036243A1 (en) | 2005-04-21 |
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