CN114637146B - Liquid crystal optical device, liquid crystal optical device array, electronic product, and driving method - Google Patents
Liquid crystal optical device, liquid crystal optical device array, electronic product, and driving method Download PDFInfo
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- CN114637146B CN114637146B CN202210311016.9A CN202210311016A CN114637146B CN 114637146 B CN114637146 B CN 114637146B CN 202210311016 A CN202210311016 A CN 202210311016A CN 114637146 B CN114637146 B CN 114637146B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 240
- 230000003287 optical effect Effects 0.000 title claims abstract description 109
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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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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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
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal 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
- G02F1/29—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 position or the direction of light beams, i.e. deflection
- G02F1/294—Variable focal length devices
Abstract
The invention belongs to the technical field of liquid crystal optics, and particularly relates to a liquid crystal optical device, a liquid crystal optical device array, an electronic product and a driving method. The liquid crystal optical device comprises a liquid crystal layer, a first orientation layer, a second orientation layer, a first electrode layer, a second electrode layer, a first transparent substrate and a second transparent substrate; the second electrode layer comprises a conductive wire and an outgoing wire, the conductive wire comprises a first position and a second position, one end of the outgoing wire is connected with the conductive wire, the other opposite end of the outgoing wire is suspended, the position where the outgoing wire is connected with the conductive wire is an outgoing position, at least a part of the outgoing position is located between the first position and the second position of the conductive wire, and the resistance value between each outgoing position and the first position on the conductive wire and the distance between at least a part of each outgoing wire and the first position in the first direction meet a first condition. The invention has simple driving mode and can obviously improve the precision of potential distribution in the liquid crystal optical device and the phase distribution effect of the liquid crystal optical device.
Description
Technical Field
The invention belongs to the technical field of liquid crystal optics, and particularly relates to a liquid crystal optical device, a liquid crystal optical device array, an electronic product and a driving method.
Background
The liquid crystal lens has the characteristic of electric control focusing, so that the application is more and more widespread. In order to be able to apply the liquid crystal lens to different scenes, it is often necessary to precisely control the potential distribution in the vicinity of the liquid crystal lens so that the liquid crystal lens can form a desired phase distribution. The cylindrical lens may be formed, for example, by a potential distribution in the form of a parabolic cylinder. In the document "Tunage-Focus Cylindrical Liquid Crystal Lens," Japanese Journal of Applied Physics 43,652,652-653 (2004), a proposal is made that a cylindrical lens is produced by using a space between two electrodes, but the liquid crystal lens produced by this proposal has a small aperture, large aberration, inability to switch between a positive lens and a negative lens, and inability to precisely control the voltage distribution, and therefore the effect of the liquid crystal lens is poor. In the document "Polarization independent blue-phase liquid crystal cylindrical lens with a resistive film," appl. Opt.51,2568-2572 (2012), a proposal is made in which a third electrode is disposed between the hole-shaped electrodes, and a high-resistance film is coated on the electrodes to control the electric potential distribution, thereby forming a positive-negative switchable cylindrical lens, but the liquid crystal lens of this type is also difficult to maintain a good lens effect for a long time because of instability of the high-resistance film and the uniformity of the high-resistance film being difficult to control, and stable control of the electric potential cannot be achieved. The document "Cylindrical and Powell Liquid Crystal Lenses With Positive-Negative Optical Power," IEEE Photonics Technology Letters 32,1057-1060 (2020) proposes a method of connecting the center and the edge of the aperture of a lenticular lens with a wide-band linearly increasing ITO electrode, and distributing the voltage across the linearly increasing ITO electrode to the entire aperture area through an ITO wire, but the voltage across the linearly increasing ITO electrode may seriously affect the phase distribution of the lenticular lens, and the ITO electrode width is difficult to control precisely, so that the effect of the liquid crystal lenticular lens obtained by this scheme is also not ideal.
Disclosure of Invention
In view of the above, the present invention provides a liquid crystal optical device for solving the technical problem that the existing liquid crystal optical device cannot accurately control the electric potential distribution of the relevant area of the liquid crystal optical device by a simple control method, and the obtained liquid crystal optical device has non-ideal phase distribution.
The technical scheme adopted by the invention is as follows:
in a first aspect, the present invention provides a liquid crystal optical device, including a liquid crystal layer, a first alignment layer, a second alignment layer, a first electrode layer, a second electrode layer, a first transparent substrate, and a second transparent substrate, where the first alignment layer and the second alignment layer are respectively located at two opposite sides of the liquid crystal layer, the first electrode layer is located at a side of the first alignment layer facing away from the liquid crystal layer, and the second electrode layer is located at a side of the second alignment layer facing away from the liquid crystal layer; the first transparent substrate is positioned at one side of the first electrode layer, which is away from the liquid crystal layer, and the second transparent substrate is positioned at one side of the second electrode layer, which is away from the liquid crystal layer;
the first electrode layer is a surface electrode;
the second electrode layer comprises a conductive wire and a plurality of outgoing lines, the conductive wire comprises a first position and a second position, the first position and the second position are different, the first position of the conductive wire is used for receiving a first driving voltage, the second position of the conductive wire is used for receiving a second driving voltage, one end of the outgoing line is connected with the conductive wire, the opposite other end of the outgoing line is suspended, the position where the outgoing line is connected with the conductive wire is an outgoing position, at least a part of the outgoing position is located between the first position and the second position of the conductive wire, at least two outgoing positions are different, and the resistance value between each outgoing position and the first position on the conductive wire and the distance between at least a part of each outgoing line and the first position in the first direction meet a first condition.
Preferably, the conductive wire further comprises a third position, the first position being located between the third position and the second position, the third position of the conductive wire being for receiving a second driving voltage, at least a portion of the extraction position being located between the second position and the third position.
Preferably, the width of the portion of the conductive wire between the second position and the third position is the same, and the length of the conductive wire from each lead-out position to the first position and the distance from at least a part of each lead-out wire to the first position in the first direction satisfy the second condition.
Preferably, the first electric connector is connected with the conductive wire at a first position;
the part of the conductive wire between the first position and the second position is a first sub-part, the part of the conductive wire between the first position and the third position is a second sub-part, and the first sub-part and the second sub-part are respectively positioned at two opposite sides of the first electric connecting piece.
Preferably, the lead-out wire includes a first portion and a second portion located on opposite sides of a reference plane, respectively, the conductive wire being located on the same side of the reference plane as the first portion or the second portion, the reference plane being a plane passing through the first position and perpendicular to the first direction.
Preferably, the lead wires include a first group of lead wires and a second group of lead wires, the first group of lead wires are led out to a first area by the conductive wires, the second group of lead wires are led out to a second area by the conductive wires, the first area and the second area are distributed on two opposite sides of a reference plane respectively, the reference plane is a plane passing through the first position and perpendicular to the first direction, and the conductive wires are located in the first area or the second area.
Preferably, the first condition is that the resistance value between each lead-out position on the conductive wire and the first position is parabolic in distribution with the distance between at least a part of each lead-out wire and the first position in the first direction or the resistance value between each lead-out position on the conductive wire and the first position is proportional to the distance between at least a part of each lead-out wire and the first position in the first direction.
Preferably, the width of the portion of the conductive wire between the first position and the second position is the same, and the length of the conductive wire from each lead-out position to the first position and the distance from at least a part of each lead-out wire to the first position in the first direction satisfy the second condition.
Preferably, the second condition is that the length of the conductive wire from each lead-out position to the first position is parabolic in distribution with the distance from at least a part of each lead-out wire to the first position in the first direction or the length of the conductive wire from each lead-out position to the first position is proportional to the distance from at least a part of each lead-out wire to the first position in the first direction.
Preferably, in at least one region, the individual lead wires are parallel to each other, and at least a part of the portion of each lead wire satisfying the first condition is located in the region.
Preferably, the projections of the conductive lines and the face electrodes on a plane parallel to the second electrode layer do not coincide.
Preferably, the conductive lines are located outside the functional area of the liquid crystal optical device.
Preferably, a high-resistance film or a high-dielectric constant layer is disposed between the second electrode layer and the second alignment layer or between the second electrode layer and the second transparent substrate.
In a second aspect, the present invention provides a liquid crystal optic array comprising a plurality of liquid crystal optic devices of the first aspect arranged in an array.
In a third aspect, the present invention provides a liquid crystal optical device array, the liquid crystal optical device array including the liquid crystal optical device according to the first aspect, wherein the lead-out wires of the liquid crystal optical device extend to form a plurality of extension sections, the plurality of extension sections Cheng Zhenlie are arranged, and resistance values between each lead-out position and the first position on the conductive wire and distances between at least a part of each extension section and the first position in the first direction satisfy conditions corresponding to the extension sections.
In a fourth aspect, the present invention provides an electronic product comprising a control circuit and a liquid crystal optic according to the first aspect or a liquid crystal optic array according to the second aspect or a liquid crystal optic array according to the third aspect, the control circuit being electrically connected to the liquid crystal optic or the liquid crystal optic array.
In a fifth aspect, the present invention provides a driving method of a liquid crystal optical device or a liquid crystal optical device array for driving the liquid crystal optical device according to the first aspect or the liquid crystal optical device array according to the second aspect or the liquid crystal lens array according to the third aspect, wherein the liquid crystal optical device is a liquid crystal lens, the liquid crystal optical device array is a liquid crystal lens array, and a first driving voltage is set to V1, and a second driving voltage is set to V2, the method includes the following steps:
S1: acquiring a liquid crystal linear response voltage interval of a liquid crystal lens or a liquid crystal lens array;
s2: acquiring a minimum voltage Vmin and a maximum voltage Vmax in a liquid crystal linear working interval according to the liquid crystal linear response voltage interval;
s3: the voltage difference between V1 and V2 is adjusted according to the minimum voltage Vmin and the maximum voltage Vmax to adjust the optical power of the liquid crystal lens or the liquid crystal lens array and/or switch the positive lens and the negative lens of the liquid crystal lens or the liquid crystal lens array, wherein Vmin is less than or equal to V1 and less than or equal to Vmax, and Vmin is less than or equal to V2 and less than or equal to Vmax.
The beneficial effects are that: according to the liquid crystal optical device, the liquid crystal optical device array, the electronic product and the driving method, the conductive wires capable of loading two driving voltages are utilized to generate different electric potentials distributed along with the positions of the conductive wires, and the plurality of outgoing wires are led out from different positions of the non-conductive wires respectively. According to the invention, the potential distribution generated by each outgoing line is precisely controlled by configuring the condition that the resistance value between each outgoing line position and the first position on the conducting line and the distance between at least one part of each outgoing line and the first position in the first direction are met, and the deflection of liquid crystal molecules in the liquid crystal optical device is controlled by utilizing the generated potential distribution, so that emergent light transmitted through the liquid crystal layer is more similar to the expected phase distribution, and the effect of the obtained liquid crystal optical device can be obviously improved under the condition that only two driving voltages are needed.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described, and it is within the scope of the present invention to obtain other drawings according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of a liquid crystal optical device of the present invention;
FIG. 2 is a schematic diagram showing the structure of a second electrode layer in the liquid crystal optical device of the present invention;
FIG. 3 is a schematic diagram of the structure of the conductive lines in the liquid crystal optical device of the present invention;
FIG. 4 is a schematic diagram of a second electrode layer using a semi-conductive line according to the present invention;
FIG. 5 is a schematic view of another structure of a second electrode layer using a semi-conductive line according to the present invention;
FIG. 6 is a schematic diagram of the potential distribution of individual pinout lines of the present invention;
FIG. 7 is a schematic view of a portion of the pinout of the present invention meeting a first condition;
FIG. 8 is a schematic view of the lead-out wires being parallel to each other in a certain area in one of the configurations of the present invention;
FIG. 9 is a schematic view showing the structure of a second electrode layer according to a fourth embodiment of the present invention;
FIG. 10 is a schematic view showing the structure of a second electrode layer according to a fifth embodiment of the present invention;
FIG. 11 is a schematic structural view of a second electrode layer according to a sixth form of the present invention;
fig. 12 is a schematic structural view of a second electrode layer according to a seventh form of the present invention;
fig. 13 is a schematic structural view of a second electrode layer according to an eighth form of the present invention;
FIG. 14 is an interference fringe pattern of a liquid crystal lenticular lens of the present invention;
FIG. 15 is a schematic diagram of an array of liquid crystal optical devices in one form of the invention;
FIG. 16 is a schematic diagram of another form of liquid crystal optic array according to the present invention;
FIG. 17 is an interference fringe pattern of a liquid crystal optic lenticular array of the present invention;
FIG. 18 is an interference fringe pattern of a method of driving a liquid crystal optic or array of liquid crystal optics of the present invention;
FIG. 19 is a schematic view showing the structure of the second electrode layer of the liquid crystal cone lens array of the present invention;
fig. 20 is a schematic view showing a structure in which a surface electrode at a position corresponding to a conductive line is provided in a missing state.
Reference numerals illustrate:
the liquid crystal optical device 100, the first transparent substrate 10, the first electrode layer 20, the first alignment layer 30, the liquid crystal layer 40, the second alignment layer 50, the second electrode layer 60, the conductive line 61, the first position 611, the second position 612, the third position 613, the first sub-portion 614, the second sub-portion 615, the first set of lead-out wires 616, the second set of lead-out wires 617, the lead-out wires 62, the first electrical connection 63, the second transparent substrate 70, the reference plane 80, the first region 81, the second region 82, the initial extension 610, the first extension 620, the second extension 630.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element. If not conflicting, the embodiments of the present invention and the features of the embodiments may be combined with each other, which are all within the protection scope of the present invention.
Example 1
As shown in fig. 1, the present embodiment provides a liquid crystal optical device, which includes a liquid crystal layer 40, a first alignment layer 30, a second alignment layer 50, a first electrode layer 20, a second electrode layer 60, a first transparent substrate 10 and a second transparent substrate 70, where the first alignment layer 30 and the second alignment layer 50 are respectively located on opposite sides of the liquid crystal layer 40, the first electrode layer 20 is located on a side of the first alignment layer 30 facing away from the liquid crystal layer 40, and the second electrode layer 60 is located on a side of the second alignment layer 50 facing away from the liquid crystal layer 40; the first transparent substrate 10 is located at a side of the first electrode layer 20 facing away from the liquid crystal layer 40, and the second transparent substrate 70 is located at a side of the second electrode layer 60 facing away from the liquid crystal layer 40;
the liquid crystal optical device in this embodiment may adopt a layered structure. The liquid crystal layer 40, the first alignment layer 30, the second alignment layer 50, the first electrode layer 20, the second electrode layer 60, the first transparent substrate 10 and the second transparent substrate 70 are respectively located in different layers, and the layers are stacked and arranged along the light transmission direction of the liquid crystal optical device, that is, along the normal direction of the layers. The arrangement may be as shown in fig. 1, and in fig. 1, the first transparent substrate 10, the first electrode layer 20, the first alignment layer 30, the liquid crystal layer 40, the second alignment layer 50, the second electrode layer 60, and the second transparent substrate 70 are sequentially arranged from bottom to top along the light passing direction of the liquid crystal optical device. Wherein the first transparent substrate 10 and the second transparent substrate 70 may be made of a transparent material having a certain strength and rigidity, such as a glass substrate, a plastic substrate, etc. Wherein the first substrate may function to support the liquid crystal optical device. Wherein the first transparent substrate 10 may serve as a carrier for the first electrode layer 20, the first electrode layer 20 may be plated on the first substrate. The second substrate also serves as a support, and may also serve as a carrier for the second electrode layer 60, and the second electrode layer 60 may be plated on the second transparent substrate 70.
The first electrode layer 20 is a planar electrode, and the first electrode layer 20 may form an equipotential plane.
As shown in fig. 2 and fig. 4, the second electrode layer 60 includes a conductive line 61 and a plurality of outgoing lines 62, where the conductive line 61 includes a first position 611 and a second position 612, where the first position 611 and the second position 612 are different, the first position 611 of the conductive line 61 is used to receive a first driving voltage, the second position 612 of the conductive line 61 is used to receive a second driving voltage, one end of the outgoing line 62 is connected to the conductive line 61, the opposite end is suspended, the position where the outgoing line 62 is connected to the conductive line 61 is an outgoing position, at least a part of the outgoing position is located between the first position 611 and the second position 612 of the conductive line 61, and a distance between a resistance value from each outgoing position on the conductive line 61 to the first position 611 and a distance from at least a part of each outgoing line 62 to the first position 611 in the first direction satisfy a first condition.
Wherein the number of the outgoing lines 62 may be 2 or more. The lead-out position of each lead-out wire 62 may be the same or different. Wherein the lead-out wires 62 may be made entirely or at least partially of a transparent material. The conductive line 61 in this embodiment may be a conductive line having a certain resistance, or may be a thin line plated on the second substrate having a certain resistance and being conductive. The conductive line 61 may be made of a transparent conductive material including, but not limited to, ITO electrode material, IZO electrode material, FTO electrode material, AZO electrode material, IGZO electrode material, etc.
The present embodiment may apply the first driving voltage and the second driving voltage at two different positions, i.e., the first position 611 and the second position 612, on the conductive line 61, respectively. When the two driving voltages are applied to the conductive line 61, different potentials of different magnitudes are distributed at different positions on the conductive line 61. Since one end of the lead-out wire 62 is connected to the conductive wire 61 and the opposite end is suspended in the air in this embodiment, the electric potential at each position on the same lead-out wire 62 is equal to the electric potential of the conductive wire 61 at the position where the lead-out wire 62 is connected to the conductive wire 61. Thus, by configuring the lead-out position of each lead-out wire 62, a desired potential of each lead-out wire 62 can be obtained. We can extend each pinout 62 to certain locations where we need, the potential distribution of which is controlled by the potential on pinout 62. For example, by extending the lead-out wires 62 to the region where the electric field generated thereby can drive the deflection of liquid crystal molecules in the liquid crystal optical device. Since only a part of the lead-out wire 62 may be used for controlling the electric potential distribution in practice, only the position of this part may be set, and of course, the positions of all parts of the lead-out wire 62 may be set as needed, without limitation. In order to obtain a desired potential distribution by using the lead-out wires 62, in the present embodiment, the resistance value between each lead-out position on the conductive wire 61 to the first position 611 and the distance between at least a part of each lead-out wire 62 to the first position 611 in the first direction may be made to satisfy the first condition. When the first driving voltage and the second driving voltage are applied to the conductive line 61, the electric potential at each position on the conductive line 61 is determined by the resistance value between each lead-out position on the conductive line 61 to the first position 611. The potential distribution of the space is thus controlled by setting the satisfied condition between the distance from a certain portion on each lead-out wire 62 or all portions on the lead-out wire 62 to the first position 611 and the aforementioned resistance value. The first direction may be arbitrarily specified as needed, and the direction may be specified as the first direction by using a potential distribution required to control each position in a certain direction in a space where the liquid crystal optical device is located. The present embodiment can obtain different spatial potential distributions by setting different first conditions, thereby obtaining liquid crystal optical devices of different effects. When the liquid crystal optical device of the embodiment adopts the foregoing structure, since the electric potential on each outgoing line 62 and the position through which each outgoing line 62 passes can be precisely controlled, precise control of the electric potential distribution in the space where the liquid crystal optical device is located can be realized, thereby obtaining a liquid crystal optical device with better effect. In addition, in the embodiment, accurate control of the electric potential of each position in the space where the liquid crystal optical device is located can be realized only by the first driving voltage and the second driving voltage, so that the liquid crystal optical device with better effect can be obtained by a simple driving mode.
As shown in fig. 2, as a preferred embodiment, in this embodiment, the conductive wire 61 further includes a third position 613, the first position 611 is located between the third position 613 and the second position 612, the third position 613 of the conductive wire 61 is configured to receive the second driving voltage, and at least a portion of the extraction position is located between the second position 612 and the third position 613.
The present embodiment adds a third location 613 to which the second driving voltage is applied on the basis of the aforementioned second location 612, so that the second driving voltage can be applied to both the second location 612 and the third location 613 of the conductive line 61. When the second driving voltage is applied to the second position 612 and the third position 613 of the conductive wire 61 at the same time, a position-dependent potential can be generated between the second position 612 and the first position 611 and between the third position 613 and the first position 611 of the conductive wire 61, and the lead-out wires 62 can be led out from both sides of the first position 611 respectively, i.e. the lead-out positions can be located between the second position 612 and the first position 611 or between the third position 613 and the first position 611. With the above-described structure, the electric potential distribution on both sides of the first position 611 can be controlled by the lead wires 62 on both sides of the first position 611, and also the electric potential distribution symmetrical on both sides can be formed.
As shown in fig. 3, as one implementation manner, the liquid crystal optical device of this embodiment further includes a first electrical connector 63, where the first electrical connector 63 is connected to the conductive wire 61 at a first position 611; the present embodiment applies a first driving voltage to the first location 611 of the conductive line 61 through the first electrical connection 63.
The portion of the conductive wire 61 between the first position 611 and the second position 612 is a first sub-portion 614, the portion of the conductive wire 61 between the first position 611 and the third position 613 is a second sub-portion 615, and the first sub-portion 614 and the second sub-portion 615 are respectively located on two opposite sides of the first electrical connector 63. In order to facilitate the first electrical connection 63 to be led out from the first position 611 of the conductive wire 61, in this embodiment, the two portions of the conductive wire 61, that is, the first sub-portion 614 and the second sub-portion 615, are respectively located at two sides of the first electrical connection 63, so that a position-dependent potential can be generated at two sides of the first position 611, and the first electrical connection 63 can be avoided, thereby facilitating loading of the first driving voltage.
The conductive line 61 of the second electrode layer 60 may take any one of the configurations shown in fig. 9 to 13 or other configurations other than the configuration shown in fig. 3, and is not particularly limited herein, as long as the aforementioned first condition is satisfied.
As shown in fig. 4, in this embodiment, the lead-out wire 62 includes a first portion and a second portion respectively located at opposite sides of the reference plane 80, the conductive wire 61 is located at the same side of the reference plane 80 as the first portion or the second portion, and the reference plane 80 is a plane passing through the first position 611 and perpendicular to the first direction.
As shown in fig. 4, the space in which the liquid crystal optical device is located is divided into two regions by the reference plane 80, wherein the conductive line 61 is located in only one of the regions, and the lead-out line 62 extends in both regions. The lead-out wires 62 can be led out from only one area by adopting the structure in the embodiment, so that the electric potential distribution of the two areas can be controlled, the electric potential distribution on two sides of the first position 611 can be controlled by only applying driving voltages at two positions, and the length of the conductive wires 61 can be shortened by half, so that the manufacturing cost and the energy consumption of the liquid crystal optical device are also obviously reduced.
The second electrode layer 60 may be formed by cutting out the conductive line 61 in any one of fig. 9 to 13 and then replacing the conductive line 61 in fig. 4.
In addition, a bilaterally symmetrical potential distribution can also be formed. The extension line in this embodiment may include only the first portion and the second portion, or may include other portions other than the first portion and the second portion, without limitation.
As shown in fig. 5, in the present embodiment, the lead-out wires 62 include a first set of lead-out wires 616 and a second set of lead-out wires 617, the first set of lead-out wires 616 are led out from the conductive wires 61 to the first area 81, the second set of lead-out wires 617 have the conductive wires 61 led out to the second area 82, the first area 81 and the second area 82 are distributed on opposite sides of the reference plane 80, the reference plane 80 is a plane passing through the first position 611 and perpendicular to the first direction, and the conductive wires 61 are located in the first area 81 or the second area 82. The present embodiment divides the lead wires 62 into two groups, and both groups of lead wires 62 are led out from the conductive wires 61 located only in the first region 81 and then extend to the first region 81 and the second region 82, respectively. In this way, the potential distribution on both sides of the first position 611 can be controlled by applying the driving voltage to only two positions, and the length of the conductive line 61 can be shortened by half, so that the manufacturing cost and the power consumption of the liquid crystal optical device can be remarkably reduced.
In order to improve the processing efficiency and reduce the manufacturing cost, the present embodiment may also provide the conductive lines 61 in the form of equal widths. When the driving voltage is applied to the two positions on the conductive line 61, the width of the portion of the conductive line 61 between the second position 612 and the third position 613 can be made the same. When a manner of loading driving voltages at three positions on the conductive line 61 is adopted. The width of the portion of the conductive line 61 between the second position 612 and the third position 613 is the same.
In the case where the widths of the respective positions of the conductive lines 61 are equal, the length of the conductive lines 61 from the respective lead-out positions to the first position 611 and the distance of at least a part of the respective lead-out lines 62 to the first position 611 in the first direction may be made to satisfy the second condition.
Since the resistance value between each of the lead-out positions to the first position 611 on the conductive line 61 is proportional to the length of the conductive line 61 from each of the lead-out positions to the first position 611 with the widths of the respective positions of the conductive line 61 being equal, the present embodiment can also control the electric potential on the lead-out line 62 by controlling the length of the conductive line 61 from each of the lead-out positions to the first position 611.
As one of the embodiments, the present embodiment provides a structural form that can form a parabolic electric potential distribution, and in this embodiment, the first condition is that the resistance value between each lead-out position on the conductive wire 61 and the first position 611 and the distance between at least a part of each lead-out wire 62 and the first position 611 in the first direction are parabolic.
The parabolic distribution of the resistance value between each lead-out position on the conductive wire 61 and the distance between at least a part of each lead-out wire 62 and the first position 611 in the first direction means that a rectangular coordinate system in which a curve representing the correspondence between the resistance value between each lead-out position on the conductive wire 61 and the distance between at least a part of each lead-out wire 62 and the first position 611 in the first direction is parabolic is established with the resistance value between each lead-out position and the first position 611 and the distance between at least a part of each lead-out wire 62 and the first position 611 in the first direction as coordinate axes, respectively.
As shown in fig. 7 and 8, for convenience of description, a portion of each of the lead wires 62 that is required to satisfy the first condition is selected by a dashed frame. It will be appreciated that all or any portion of the lead-out wires 62 may be selected as the portion satisfying the first condition according to actual needs, and is not limited to the portion indicated by the broken line box in the figure.
As shown in fig. 6, we set up a rectangular coordinate system with the first location 611 as the origin, the first direction as the x-axis, and the magnitude of the electric potential as the y-axis, where the coordinates of the x-axis represent the distance of at least a portion of each lead wire 62 to the first location 611 in the first direction. When the resistance value between each lead-out position to the first position 611 is in direct proportion to the electric potential of the lead-out position after the first driving voltage and the second driving voltage are applied, therefore when the first condition is that the resistance value between each lead-out position to the first position 611 on the conductive line 61 and the distance from at least a part of each lead-out wire 62 to the first position 611 in the first direction are parabolic distribution, the electric potential distribution formed by the lead-out wires 62 in the dotted line frame in the first direction is parabolic distribution.
In the case where the width of the conductive line 61 is the same, the second condition is that the length of the conductive line 61 from each lead-out position to the first position 611 is parabolic in distribution with the distance from at least a part of each lead-out line 62 to the first position 611 in the first direction. Since the resistance value between each of the lead-out positions to the first position 611 on the conductive line 61 is proportional to the length of the conductive line 61 from each of the lead-out positions to the first position 611 with the same width of the conductive line 61, the present embodiment can also realize that the electric potential distribution formed by at least a part of the lead-out lines 62 in the first direction is parabolic by making the length of the conductive line 61 between each of the lead-out positions to the first position 611 parabolic with the distance between at least a part of each of the lead-out lines 62 in the first direction.
As shown in fig. 8 to 12, as one embodiment, the conductive wire 61 is bent a plurality of times to form a plurality of segments in this embodiment, the extraction positions are located at the bending positions between two adjacent segments, and the projections of the respective extraction positions in the first direction are staggered with each other. The segments have the same width and are sequentially linearly increasing from the first location 611 toward the second location 612. Or the widths of the segments are the same, the segments between the first position 611 and the second position 612 are sequentially linearly increased from the first position 611 towards the second position 612, and the segments between the first position 611 and the third position 613 are sequentially linearly increased from the first position 611 towards the third position 613. Parabolic potential distributions can also be obtained in the manner described above.
In practical applications, it is often necessary to achieve the effect of the liquid crystal lenticular lens, for this embodiment, in at least one region (for example, the region indicated by the dashed-line box in fig. 7 and 8), the respective lead wires 62 are parallel to each other, and at least a part of the portion of each lead wire 62 satisfying the first condition is located in the region. Since the electric potentials at the respective positions on each of the lead-out wires 62 are the same and the first condition is satisfied, in the region where the respective lead-out wires 62 are parallel to each other, an electric potential distribution in the form of a cylindrical surface can be formed.
In the region where the respective lead-out wires 62 are parallel to each other, when the resistance value between the respective lead-out positions to the first position 611 on the conductive wire 61 and the distance between the respective lead-out wires 62 to the first position 611 in the first direction are parabolic, the lead-out wires 62 in the aforementioned region may generate a potential distribution in the form of a parabolic cylinder.
When the conductive lines 61 are identical in width, the respective lead-out lines 62 are parallel to each other in at least one region, and at least a part of the portion of the respective lead-out lines 62 satisfying the second condition is located in the region.
In the region where the respective lead-out wires 62 are parallel to each other, when the widths of the conductive wires 61 are the same and the lengths of the conductive wires 61 from the respective lead-out positions to the first positions 611 are parabolic distribution with the distances of the respective lead-out wires 62 to the first positions 611 in the first direction, the lead-out wires 62 in the aforementioned region can generate a parabolic cylinder-shaped electric potential distribution.
The present embodiment can set the regions parallel to each other between the respective lead-out wires 62 according to the position of the liquid crystal layer 40 in the liquid crystal optical device, so that the specific form of electric field generated by the lead-out wires 62 in these regions can drive the liquid crystal molecules to deflect. For example, after the lead-out wires 62 in the aforementioned region generate a potential distribution in the form of a parabolic cylinder, an electric field formed by the potential distribution may drive the liquid crystal molecules in the liquid crystal layer 40 to deflect to form a liquid crystal lenticular lens. Since the foregoing structure can produce an accurate electric potential distribution in the form of a parabolic cylinder, the present embodiment can obtain a liquid crystal lenticular lens excellent in effect. As can be seen from fig. 14, the interference fringe pattern obtained by using the liquid crystal lens of this embodiment can achieve a good cylindrical lens effect as can be seen from fig. 14. As shown in fig. 19, as one of the practical means, the resistance value between each lead-out position to the first position on the conductive line in the present embodiment is proportional to the distance of at least a part of each lead-out wire to the first position in the first direction. The cone lens can be formed by adopting the structure.
As shown in fig. 20, as a preferred embodiment, in this example, the projections of the conductive line and the surface electrode on a plane parallel to the second electrode layer do not coincide. In this embodiment, the surface electrode is left in a position opposite to the conductive wire on the second electrode layer, so that the conductive wire is not affected by the capacitive effect generated between the conductive wire and the surface electrode, and the effect of the liquid crystal optical device is further improved.
As a preferred embodiment, the conductive lines are located outside the functional area of the liquid crystal optical device in this example. Wherein the functional area of the liquid crystal optic means the area of the liquid crystal optic where light can be modulated as desired. In the prior art, it is necessary to arrange elements that generate a potential distribution in the functional region of the liquid crystal optical device. The element in which the potential distribution is generated in this way is limited by the range of the functional region, and it is difficult to satisfy the requirement of potential control. While the present embodiment separates the element generating the electric potential distribution, i.e. the conductive line in the present embodiment, and the element controlling the electric potential distribution, i.e. the lead-out line in the present embodiment, and makes the element generating the electric potential outside the functional area, at least a part of the element controlling the electric potential is located in the functional area of the liquid crystal optical device. The element for generating the electric potential distribution can thus be free from the functional region, so that an accurate design can be made easily, and the element for generating the electric potential distribution and the functional region can be made independent of each other.
In addition, the high-resistance film or the high-dielectric constant layer may be disposed between the second electrode layer and the second alignment layer, or between the second electrode layer and the second transparent substrate. The high-resistance film or the high-dielectric constant layer may make the electric potential between the adjacent lead wires smoother.
Example 2
In the application of naked eye 3D technology, a cylindrical lens array is a key component, and is applied to the naked eye 3D technology in more and more electronic digital products at present, but the cylindrical lens array in the prior art has the problems of incapability of focusing, incapability of switching working states and non-working states and the like, so that the application scene of the product can be greatly limited. For this embodiment, there is provided a liquid crystal optical device 100 array including a plurality of the liquid crystal optical devices 100 described in embodiment 1, the plurality of liquid crystal optical devices 100 being arranged in an array. The first condition satisfied by each liquid crystal optic 100 in the array of liquid crystal optic 100 may be the same or different, and is not limited herein. When the first conditions satisfied by each liquid crystal optical device 100 in the array of liquid crystal optical devices 100 are the same, the effect of each liquid crystal optical device 100 in the array may be the same, and when the first conditions satisfied by each liquid crystal optical device 100 in the array of liquid crystal optical devices 100 are not exactly the same, the effect of each liquid crystal optical device 100 in the array is not exactly the same.
As shown in fig. 15, as a preferred embodiment, the first condition is that the resistance value between each lead-out position on the conductive line 61 and the first position 611 is parabolic with the distance between at least a portion of each lead-out line 62 and the first position 611 in the first direction, and in at least one region, the respective lead-out lines 62 of the liquid crystal optical device 100 are parallel to each other, that is, the liquid crystal optical device 100 employed in the array of the liquid crystal optical device 100 of the present embodiment is a lenticular lens, thereby forming a liquid crystal lenticular lens array. The liquid crystal optical device 100 of each structural form in embodiment 1 can be used to form the liquid crystal lenticular lens array in this embodiment on the premise that the foregoing conditions are satisfied.
As a preferred embodiment, in the case where the widths of the conductive lines 61 are the same, the second condition is that the lengths of the conductive lines 61 from the respective lead-out positions to the first positions 611 are parabolic with the distances from at least a part of the respective lead-out lines 62 to the first positions 611 in the first direction, and in at least one region, the respective lead-out lines 62 of the liquid crystal optical device 100 are parallel to each other, that is, the liquid crystal optical devices 100 employed in the array of the liquid crystal optical device 100 of the present embodiment are all lenticular lenses, thereby forming a liquid crystal lenticular lens array. The liquid crystal optical device 100 of each structural form in embodiment 1 can be used to form the liquid crystal lenticular lens array in this embodiment on the premise that the foregoing conditions are satisfied.
With the above structure, each liquid crystal lens 100 can form precise parabolic cylinder distribution, thereby obtaining a liquid crystal cylindrical lens with better effect.
In this embodiment, the first driving voltage and the second driving voltage of each liquid crystal lens 100 are the same, so that the focal power and the switching between the positive and negative lenses of each liquid crystal lens 100 in the array of liquid crystal lenses 100 can be controlled only by controlling the two driving voltages, and the specific control method can be seen in embodiment 4. When the above-described lenticular lens array is employed, the power of each liquid crystal lens 100 and the switching of the positive and negative lenses can also be controlled by controlling the first driving voltage and the second driving voltage.
As can be seen from fig. 17, the interference moire pattern obtained by using the liquid crystal lens 100 array of the present embodiment can achieve a good lenticular lens array effect as can be seen from fig. 17.
Example 3
The present embodiment provides another form of the array of liquid crystal optical devices 100, in which the array of liquid crystal optical devices 100 includes the liquid crystal optical device 100 described in embodiment 1, and the lead-out wires 62 of the liquid crystal optical device 100 are extended to form a plurality of extension sections Cheng Zhenlie arranged, and the resistance value between each lead-out position on the conductive wire 61 and the first position 611 and the distance between at least a part of each extension section in the first direction to the first position 611 satisfy the condition corresponding to the extension section.
The array of the liquid crystal optical device 100 of this embodiment may be formed by continuously extending the lead-out wires 62 of the liquid crystal optical device 100 in embodiment 1 to form a plurality of extension segments, each of which may control the electric potential distribution of the respective corresponding region, so as to drive the liquid crystal molecules in the liquid crystal layer 40 of the respective corresponding region to deflect, and finally obtain a plurality of liquid crystal optical devices 100 arranged in an array. The potential distribution formed by the respective extension sections may be the same or different, and is not limited herein. Since the distances between the respective extension sections and the first position 611 on the conductive line 61 in the first direction are different, even in the case where the electric potential distribution formed by the respective extension sections is the same, there is a certain difference in the resistance value between the respective extraction positions on the conductive line 61 and the first position 611 and the condition satisfied by the distances between at least a part of the respective extension sections and the first position 611 in the first direction. For this embodiment, conditions corresponding to the extension sections may be set for each extension section.
For example, when we want to obtain a liquid crystal lenticular lens array, the aforementioned corresponding condition may be set such that the resistance value between each lead-out position on the conductive line 61 and the first position 611 and the distance between at least a part of each lead-out line 62 and the first position 611 in the first direction minus the offset distance of the extension section satisfy a parabolic distribution, and such parts of each lead-out line 62 are made parallel to each other.
Let the extension closest to the first location 611 be the initial extension 610, wherein the offset distance of a certain extension is the distance between the location of that extension and the location of the initial extension 610 for the same pinout 62 in the first direction.
In the following, referring to fig. 16 as an example, as shown in fig. 16, three extension sections are arranged in an array in fig. 16, which are respectively an initial extension section 610, a first extension section 620 and a second extension section 630, wherein the offset distance of the first extension section 620 is d1, and the offset distance of the second extension section 630 is d2.
When we want to obtain a liquid crystal lenticular lens array, the aforementioned corresponding condition may also be set in the case where the widths of the conductive lines 61 are the same so that the lengths of the conductive lines 61 from the respective extraction positions to the first positions 611 satisfy parabolic distribution after subtracting the offset distance of the extension from the distance of at least a part of the respective extraction lines 62 to the first positions 611 in the first direction, and the parts of the respective extraction lines 62 are made parallel to each other.
With the above structure, each liquid crystal optical device 100 can form precise parabolic cylinder distribution, thereby obtaining a liquid crystal lenticular lens with better effect.
In this embodiment, the first driving voltage and the second driving voltage of each liquid crystal lens 100 are the same, so that the focal power and the switching between the positive and negative lenses of each liquid crystal lens 100 in the array of liquid crystal lenses 100 can be controlled only by controlling the two driving voltages, and the specific control method can be seen in embodiment 4. When the above-described lenticular lens array is employed, the power of each liquid crystal lens 100 and the switching of the positive and negative lenses can also be controlled by controlling the first driving voltage and the second driving voltage.
Example 4
As shown in fig. 18, the present embodiment provides a driving method of a liquid crystal optical device or a liquid crystal optical device array, for driving the liquid crystal optical device of embodiment 1, wherein the liquid crystal optical device is a liquid crystal lens, the liquid crystal optical device array is a liquid crystal lens array, and a first driving voltage is set to V1, and a second driving voltage is set to V2, as shown in fig. 11, the method includes the following steps:
s1: acquiring a liquid crystal linear response voltage interval of a liquid crystal lens or a liquid crystal lens array;
the liquid crystal linear operation interval refers to a voltage interval in which the liquid crystal phase retardation amount and the driving voltage are in a linear relationship.
S2: acquiring a minimum voltage Vmin and a maximum voltage Vmax in a liquid crystal linear working interval according to the liquid crystal linear response voltage interval;
s3: the voltage difference between V1 and V2 is adjusted according to the minimum voltage Vmin and the maximum voltage Vmax to adjust the focal power of the liquid crystal lens, wherein Vmin is less than or equal to V1 and less than or equal to Vmax, and Vmin is less than or equal to V2 and less than or equal to Vmax.
This step can adjust the optical power of the liquid crystal lens or liquid crystal lens array by adjusting the values of V1-V2. V1 can be kept unchanged during specific adjustment, and the size of V2 can be adjusted; v1 can be kept unchanged, and the size of V2 can be adjusted; the magnitudes of V1 and V2 can also be changed simultaneously. When V1 is kept unchanged and V2 is adjusted in size, v1=vmin or v1=vmax may be set and V2 is adjusted in size; when V2 is kept unchanged and V1 is resized, v2=vmin or v2=vmax may be set and V1 is resized. In addition, the present embodiment can also switch the positive lens and negative lens states of the liquid crystal lens by changing the magnitude relation of V1 and V2.
Example 5
The present embodiment provides an electronic product comprising a control circuit and the liquid crystal optic of any of embodiment 1, the control circuit being electrically connected to the liquid crystal optic or the array of liquid crystal optics. The electronic product includes, but is not limited to, an imaging device, a display device, a mobile phone, an AR device, a VR device, a naked eye 3D product, a wearable device, and the like.
The above is a detailed description of a method, an apparatus, a device, and a storage medium for driving a liquid crystal optical device according to an embodiment of the present invention.
It should be understood that the invention is not limited to the particular arrangements and instrumentality described above and shown in the drawings. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present invention are not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between steps, after appreciating the spirit of the present invention.
The functional blocks shown in the above-described structural block diagrams may be implemented in hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, a plug-in, a function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine readable medium or transmitted over transmission media or communication links by a data signal carried in a carrier wave. A "machine-readable medium" may include any medium that can store or transfer information. Examples of machine-readable media include electronic circuitry, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio Frequency (RF) links, and the like. The code segments may be downloaded via computer networks such as the internet, intranets, etc.
It should also be noted that the exemplary embodiments mentioned in this disclosure describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, or may be performed in a different order from the order in the embodiments, or several steps may be performed simultaneously.
In the foregoing, only the specific embodiments of the present invention are described, and it will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to the corresponding processes in the foregoing method embodiments, which are not repeated herein. It should be understood that the scope of the present invention is not limited thereto, and any equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present invention, and they should be included in the scope of the present invention.
Claims (17)
1. The liquid crystal optical device is characterized by comprising a liquid crystal layer, a first orientation layer, a second orientation layer, a first electrode layer, a second electrode layer, a first transparent substrate and a second transparent substrate, wherein the first orientation layer and the second orientation layer are respectively positioned at two opposite sides of the liquid crystal layer, the first electrode layer is positioned at one side of the first orientation layer, which is away from the liquid crystal layer, and the second electrode layer is positioned at one side of the second orientation layer, which is away from the liquid crystal layer; the first transparent substrate is positioned at one side of the first electrode layer, which is away from the liquid crystal layer, and the second transparent substrate is positioned at one side of the second electrode layer, which is away from the liquid crystal layer;
The first electrode layer is a surface electrode;
the second electrode layer comprises a conductive wire and a plurality of outgoing lines, the conductive wire comprises a first position and a second position, the first position and the second position are different, the first position of the conductive wire is used for receiving a first driving voltage, the second position of the conductive wire is used for receiving a second driving voltage, one end of the outgoing line is connected with the conductive wire, the opposite other end of the outgoing line is suspended, the position where the outgoing line is connected with the conductive wire is an outgoing position, at least a part of the outgoing position is located between the first position and the second position of the conductive wire, at least two outgoing positions are different, and the resistance value between each outgoing position and the first position on the conductive wire and the distance between at least a part of each outgoing line and the first position in the first direction meet a first condition.
2. The liquid crystal optic of claim 1, wherein the conductive line further comprises a third location, the first location being between the third location and the second location, the third location of the conductive line being for receiving a second drive voltage, at least a portion of the extraction location being between the second location and the third location.
3. The liquid crystal optical device according to claim 2, wherein a width of a portion of the conductive line between the second position and the third position is the same, and a length of the conductive line from each lead-out position to the first position and a distance from at least a portion of each lead-out line to the first position in the first direction satisfy the second condition.
4. The liquid crystal optic of claim 2, further comprising a first electrical connection connected to the conductive line at a first location;
the part of the conductive wire between the first position and the second position is a first sub-part, the part of the conductive wire between the first position and the third position is a second sub-part, and the first sub-part and the second sub-part are respectively positioned at two opposite sides of the first electric connecting piece.
5. The liquid crystal optical device of claim 1, wherein the lead-out wire includes a first portion and a second portion respectively located on opposite sides of a reference plane, the conductive wire being located on the same side of the reference plane as the first portion or the second portion, the reference plane being a plane passing through the first position and perpendicular to the first direction.
6. The liquid crystal optical device of claim 1, wherein the leads include a first set of leads that lead from the conductive line to the first region and a second set of leads that lead from the conductive line to the second region, the first and second regions being disposed on opposite sides of a reference plane, respectively, the reference plane being a plane passing through the first location and perpendicular to the first direction, the conductive line being disposed in either the first region or the second region.
7. The liquid crystal optical device according to any one of claims 1, 2, 4, 5, 6, wherein the first condition is that a resistance value between each lead-out position on the conductive line and the first position is parabolic in distribution with a distance from at least a part of each lead-out line to the first position in the first direction or that a resistance value between each lead-out position on the conductive line and the first position is proportional to a distance from at least a part of each lead-out line to the first position in the first direction.
8. The liquid crystal optical device according to claim 1, wherein a width of a portion of the conductive line between the first position and the second position is the same, and a length of the conductive line from each lead-out position to the first position and a distance from at least a part of each lead-out line to the first position in the first direction satisfy a second condition.
9. A liquid crystal optical device according to claim 3 or 8, wherein the second condition is that the length of the conductive line from each lead-out position to the first position is parabolic in distribution with the distance of at least a part of each lead-out wire to the first position in the first direction or that the length of the conductive line from each lead-out position to the first position is proportional to the distance of at least a part of each lead-out wire to the first position in the first direction.
10. The liquid crystal optical device according to claim 1, wherein in at least one region, the respective lead wires are parallel to each other, and at least a part of a portion of each lead wire satisfying the first condition is located in the region.
11. The liquid crystal optic of claim 1 wherein the projection of the conductive lines and the face electrode onto a plane parallel to the second electrode layer does not coincide.
12. The liquid crystal optic of claim 1, wherein the conductive lines are located outside a functional area of the liquid crystal optic.
13. The liquid crystal optical device according to claim 1, wherein a high-resistance film or a high dielectric constant layer is provided between the second electrode layer and the second alignment layer or between the second electrode layer and the second transparent substrate.
14. A liquid crystal optic array comprising a plurality of liquid crystal optic devices of any one of claims 1 to 13 arranged in an array.
15. A liquid crystal optical device array, comprising the liquid crystal optical device according to any one of claims 1 to 13, wherein the lead-out wires of the liquid crystal optical device are extended to form a plurality of extension sections, the plurality of extension sections Cheng Zhenlie are arranged, and the resistance value between each lead-out position and the first position on the conductive wire and the distance between at least a part of each extension section and the first position in the first direction satisfy the condition corresponding to the extension section.
16. An electronic product comprising a control circuit and the liquid crystal optic of any one of claims 1 to 13 or the array of liquid crystal optics of any one of claims 14 to 15, the control circuit being electrically connected to the liquid crystal optic or the array of liquid crystal optics.
17. A driving method of a liquid crystal optical device or a liquid crystal lens array for driving the liquid crystal lens according to any one of claims 1 to 13 or the liquid crystal lens array according to any one of claims 14 to 15, the liquid crystal optical device being a liquid crystal lens, the liquid crystal optical device array being a liquid crystal lens array, a first driving voltage being set to V1 and a second driving voltage being set to V2, the method comprising the steps of:
S1: acquiring a liquid crystal linear response voltage interval of a liquid crystal lens or a liquid crystal lens array;
s2: acquiring the minimum voltage V in the liquid crystal linear working interval according to the liquid crystal linear response voltage interval min And maximum voltage V max ；
S3: according toMinimum voltage V min And maximum voltage V max Adjusting the voltage difference between V1 and V2 to adjust the optical power of the liquid crystal lens or liquid crystal lens array and/or to switch the positive and negative lens states of the liquid crystal lens or liquid crystal lens array, wherein V min ≤V1≤V max And V is min ≤V2≤V max 。
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| US18/188,485 US20230305358A1 (en) | 2022-03-28 | 2023-03-23 | Liquid crystal optical device, array, electronic product, and driving method thereof |
| JP2023050515A JP2023145405A (en) | 2022-03-28 | 2023-03-27 | Liquid crystal optical device, liquid crystal optical device array, electronic product, and driving method |
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| JP2012203348A (en) * | 2011-03-28 | 2012-10-22 | Mitsubishi Electric Corp | Liquid crystal display device |
| WO2016117604A1 (en) * | 2015-01-23 | 2016-07-28 | 国立大学法人大阪大学 | Liquid crystal element, deflection element, liquid crystal module, and electronic device |
| CN105404040A (en) * | 2015-12-31 | 2016-03-16 | 武汉华星光电技术有限公司 | Touch-control liquid crystal panel and liquid crystal display |
| CN107885009A (en) * | 2017-12-28 | 2018-04-06 | 电子科技大学 | A kind of heavy caliber liquid crystal optical phased array device |
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