WO2014117410A1 - 一种液晶透镜和立体显示装置 - Google Patents

一种液晶透镜和立体显示装置 Download PDF

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Publication number
WO2014117410A1
WO2014117410A1 PCT/CN2013/071360 CN2013071360W WO2014117410A1 WO 2014117410 A1 WO2014117410 A1 WO 2014117410A1 CN 2013071360 W CN2013071360 W CN 2013071360W WO 2014117410 A1 WO2014117410 A1 WO 2014117410A1
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Prior art keywords
electrode
strip
substrate
liquid crystal
strips
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Ceased
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PCT/CN2013/071360
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English (en)
French (fr)
Inventor
廖巧生
陈峙彣
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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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
    • G02F1/29—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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/356—Image reproducers having separate monoscopic and stereoscopic modes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G02F1/13471—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/29—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
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/14—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 asymmetric
    • 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
    • G02F2203/28—Function characteristic focussing or defocussing

Definitions

  • the present invention relates to the field of stereoscopic display technology, and in particular to a liquid crystal lens and a stereoscopic display device.
  • the current stereoscopic display device generally adopts a stereoscopic display, that is, naked-view 3D (Three Dimensions, 3D) display, which is mainly installed by adding in 2D (Two Dimensions, two-dimensional), the liquid crystal lens and other light-splitting devices on the light-emitting side of the display panel, and the left and right parallax images displayed on the display panel are respectively sent to the left and right eyes of the observer, and then merged through the brain to obtain stereoscopic perception of the viewer.
  • 3D Three Dimensions, two-dimensional
  • the liquid crystal lens and the like are mainly made of a transparent material to form a cylindrical lens array of a certain size, and the light of different pixels in the display panel is emitted in different polarization directions by the refraction action, thereby obtaining the separation of the parallax images.
  • 1 is a schematic structural view of a liquid crystal lens in the prior art. As shown in FIG. 1, when liquid crystal lens 100 is not applied, the liquid crystal molecules 110a and 120a corresponding to two adjacent strip electrode groups 110 and 120 have the same deflection. , that is, the pretilt angle is ⁇ o. At this time, the center and the edge of the liquid crystal layer corresponding to the strip electrode groups 110 and 120 have no refractive index difference, and the user views through the liquid crystal lens 100 is a 2D image without parallax.
  • FIG. 2 is a first schematic view showing liquid crystal deflection when the liquid crystal lens shown in FIG. 1 is energized
  • FIG. 3 is a second schematic view showing liquid crystal deflection when the liquid crystal lens shown in FIG. 1 is energized.
  • the liquid crystal lens 100 when a certain voltage is applied, the liquid crystal lens 100 exhibits a refractive index difference at the center and the edge of the liquid crystal layer corresponding to the strip electrode groups 110 and 120 due to the distribution of the electric field, and satisfies the focus.
  • a lens-like phase distribution is formed in the mode, and the user views the 2D image with left and right parallax through the liquid crystal lens 100, and the 3D image can be seen at the optimal viewing distance.
  • the technical problem to be solved by the present invention is to provide a liquid crystal lens and a stereoscopic display device, which can not only switch the 2D/3D display, but also improve the current Neff.
  • the match between the profile and the ideal Neff profile enhances the concentrating of the display and improves the viewing performance in 3D display.
  • a technical solution adopted by the present invention is to provide a liquid crystal lens including a first substrate and a second substrate disposed opposite to each other and a liquid crystal layer sandwiched therebetween, and the second substrate is provided with a plurality of strip electrode groups arranged along a first direction parallel to the second substrate, each strip electrode group comprising at least two electrode strips sequentially insulated and stacked in a second direction perpendicular to the second substrate, and at least two The width of the layer electrode strips is sequentially decreased in a direction toward the first substrate, wherein the electrode strips closest to the first substrate in each strip electrode group are divided into at least two sub-electrode strips spaced apart in the first direction, or the nearest neighbor The electrode strip between the electrode strip of the two substrate and the electrode strip adjacent to the first substrate is divided into at least two sub-electrode strips spaced apart in the first direction, and the widths of the at least two sub-electrode strips are different from each other or the voltage received during operation Different from each other, the voltages received
  • Each strip electrode group includes a first electrode strip, a second electrode strip, and a third electrode strip that are sequentially insulated and stacked in a second direction, wherein the first electrode strip is closest to the second substrate.
  • the third electrode strip is divided into at least two sub-electrode strips.
  • the second electrode strip is divided into at least two sub-electrode strips.
  • a liquid crystal lens including a first substrate and a second substrate disposed opposite to each other and a liquid crystal layer sandwiched therebetween, and disposed on the second substrate Having a plurality of strip electrode groups spaced along a first direction parallel to the second substrate, each strip electrode group comprising at least two electrode strips sequentially insulated in a second direction perpendicular to the second substrate, and at least The width of the two electrode strips is sequentially decreased in a direction toward the first substrate, wherein at least one of the electrode strips of each strip electrode group is divided into at least two sub-electrode strips disposed at intervals in the first direction, and at least two sub-electrodes The widths of the strips are different from each other or the voltages received during operation are different from each other.
  • the first substrate is provided with a common electrode opposite to the plurality of strip electrode groups.
  • the electrode strip of the at least two electrode strips adjacent to the first substrate is divided into at least two sub-electrode strips disposed at intervals in the first direction.
  • the electrode strips between the electrode strips closest to the second substrate and the electrode strips closest to the first substrate of the at least two electrode strips are divided into at least two sub-electrode strips disposed at intervals in the first direction.
  • Each strip electrode group includes a first electrode strip, a second electrode strip, and a third electrode strip that are sequentially insulated and stacked in a second direction, wherein the first electrode strip is closest to the second substrate.
  • the third electrode strip is divided into at least two sub-electrode strips.
  • the second electrode strip is divided into at least two sub-electrode strips.
  • the projection area of each of the at least two electrode strips on the second substrate falls on a projection area of the other electrode strips on the second substrate closer to the second substrate.
  • the voltages received by the electrode strips in the same strip electrode group are different from each other, and the voltages received by the same layer strips in the different strip electrode groups are the same when operating.
  • a stereoscopic display device including a display panel and a liquid crystal lens.
  • the liquid crystal lens is disposed on a light exiting side of the display panel, and includes a first substrate and a correspondingly disposed a second substrate and a liquid crystal layer sandwiched therebetween, the second substrate being provided with a plurality of strip electrode groups arranged at intervals in a first direction parallel to the second substrate, each strip electrode group including being perpendicular to The second direction of the second substrate sequentially insulates at least two electrode strips stacked, and the widths of the at least two electrode strips are sequentially decreased in a direction toward the first substrate, wherein at least one layer of the electrode strips in each strip electrode group
  • the first direction is divided into at least two sub-electrode strips that are spaced apart, and the widths of the at least two sub-electrode strips are different from each other or the voltages received during operation are different from each other.
  • the electrode strip of the at least two electrode strips adjacent to the first substrate is divided into at least two sub-electrode strips disposed at intervals in the first direction.
  • the electrode strips between the electrode strips closest to the second substrate and the electrode strips closest to the first substrate of the at least two electrode strips are divided into at least two sub-electrode strips disposed at intervals in the first direction.
  • Each strip electrode group includes a first electrode strip, a second electrode strip, and a third electrode strip that are sequentially insulated and stacked in a second direction, wherein the first electrode strip is closest to the second substrate.
  • the third electrode strip is divided into at least two sub-electrode strips.
  • the second electrode strip is divided into at least two sub-electrode strips.
  • the invention has the beneficial effects that the present invention divides at least one electrode strip in each strip electrode group of the conventional liquid crystal lens into at least two sub-electrode strips arranged at intervals, and the width of each sub-electrode strip is different or during operation
  • the received voltage is different, so that not only the 2D/3D display can be switched, but also the current Neff can be improved.
  • the match between the profile and the ideal Neff profile enhances the concentrating of the display and improves the viewing performance in 3D display.
  • FIG. 1 is a schematic structural view of a liquid crystal lens in the prior art
  • FIG. 2 is a first schematic view showing liquid crystal deflection when the liquid crystal lens shown in FIG. 1 is energized;
  • Figure 3 is a second schematic view showing liquid crystal deflection when the liquid crystal lens shown in Figure 1 is energized;
  • FIG. 4 is a schematic diagram of a current Neff profile corresponding to the liquid crystal lens shown in FIG. 2;
  • FIG. 5 is a schematic diagram of a current Neff profile corresponding to the liquid crystal lens shown in FIG. 3;
  • FIG. 6 is a schematic structural view of an embodiment of a liquid crystal lens of the present invention.
  • FIG. 7 is a schematic diagram of a current Neff profile corresponding to the liquid crystal lens shown in FIG. 6;
  • FIG. 8 is a schematic structural view of another embodiment of a liquid crystal lens of the present invention.
  • FIG. 9 is a schematic diagram of a current Neff profile corresponding to the liquid crystal lens shown in FIG. 8;
  • FIG. 10 is a schematic structural view of an embodiment of a stereoscopic display device of the present invention.
  • the present invention provides a liquid crystal lens and a stereoscopic display device.
  • the liquid crystal lens of the present invention mainly divides at least one electrode strip in each strip electrode group of the conventional liquid crystal lens into at least two sub-electrode strips disposed at intervals, and makes the widths of the respective sub-electrode strips different or working.
  • the current received voltage is different to improve the current Neff
  • the agreement between the profile and the ideal Neff profile enhances the concentrating of the display and improves the viewing effect in 3D display.
  • Figure 6 is a schematic view showing the structure of an embodiment of a liquid crystal lens of the present invention.
  • the liquid crystal lens 600 of the present embodiment includes a first substrate 610 and a second substrate 620 which are disposed opposite to each other, and a liquid crystal layer 630 sandwiched therebetween.
  • the second substrate 620 is provided with a plurality of strip electrode groups 621 arranged along the first direction X, wherein the first direction X is parallel to the horizontal direction of the second substrate 620.
  • Each strip electrode group 621 includes a first layer electrode strip 622, a second layer electrode strip 623, and a third layer electrode strip 624 which are sequentially insulated and stacked in the second direction Y.
  • the second direction Y is perpendicular to the horizontal direction of the second substrate 620, that is, perpendicular to the first direction X.
  • the width d1 of the first layer electrode strip 622 is greater than the width d2 of the second layer electrode strip 623, and the projection area of the second layer electrode strip 623 on the second substrate 620 falls on the first layer electrode strip 622 on the second substrate 620. In the projection area.
  • the width d2 of the second layer electrode strip 623 is greater than the width d3 of the third layer electrode strip 624, and the projection area of the third layer electrode strip 624 on the second substrate 620 falls on the second layer electrode strip 623 on the second substrate 620. In the projection area.
  • the third layer electrode strip 624 includes a first sub-electrode strip 624a and a second sub-electrode strip 624b spaced apart in the first direction X, and the widths of the two are different.
  • the widths of the first sub-electrode strip 624a and the second sub-electrode strip 624b may be the same, but the voltages received during operation are different.
  • the first substrate 610 is provided with a common electrode 611 opposite to the plurality of strip electrode groups 621.
  • the common electrode 611 is a whole transparent ITO (indium tin oxide) layer.
  • Figure 7 is a current Neff corresponding to the liquid crystal lens shown in Figure 6. Profile map. The working principle and process of the 2D/3D display switching of the liquid crystal lens of the embodiment are described in detail below with reference to FIG. 6 and FIG. 7 :
  • the voltage v1 received by the first layer electrode strip 622 is smaller than that received by the second layer electrode strip 623.
  • the voltage v2 received by the second layer electrode strip 623 is less than the voltage v3 received by the third layer electrode strip 624.
  • the first sub-electrode strip 624a receives the voltage to generate an electric field, so that the corresponding liquid crystal molecules generate a deflection as shown in FIG. 2
  • the second sub-electrode strip 624b receives the voltage to generate an electric field, so that the corresponding deflection is abnormal as shown in FIG.
  • the liquid crystal molecules are deflected toward the ideal deflection direction, thereby making their corresponding Neff Profile L3 is compared to Neff profile L1 and ideal Neff profile shown in Figure 4.
  • L is more consistent (the selected area of the dotted line in the figure), which further makes the liquid crystal lens 600 more condensable, and the viewer uses it for 3D viewing better.
  • FIG. 8 is a schematic view showing the structure of another embodiment of the liquid crystal lens of the present invention.
  • the liquid crystal lens 800 of the present embodiment is different from the liquid crystal lens 600 of the above embodiment in that the third layer electrode strip 824 of the present embodiment is an integral part, and the second layer electrode strip 823 includes an interval setting.
  • the first sub-electrode strip 823a receives a voltage to generate an electric field, such that the corresponding liquid crystal molecules generate a deflection as shown in FIG. 3, and the second sub-electrode strip 823b receives a voltage to generate an electric field, so that the corresponding position is as shown in FIG.
  • the liquid crystal molecules that deflect abnormally are deflected toward the ideal deflection direction, thereby making their corresponding Neff Profile L4 (shown in Figure 9) compared to Neff profile L2 and ideal Neff profile shown in Figure 5.
  • L is more consistent (the selected area of the dotted line in the figure), which further makes the liquid crystal lens 800 more condensable, and the viewer uses it for 3D viewing better.
  • liquid crystal lens of the foregoing two embodiments and the arrangement of the sub-electrode strips thereof are provided for illustrative purposes only, and the present invention can divide any one of the strip electrode groups into two according to specific liquid crystal molecular deflection characteristics.
  • Any at least two sub-electrode strips are not limited to being divided into the three-layer electrode strips exemplified above, and the sub-electrode strips included in each layer of the electrode strips can also be adjusted according to practical applications, and only need to satisfy the actual liquid crystal molecules as far as possible. In the state, the deflection of the liquid crystal molecules can be matched.
  • the ideal Neff The profile L cannot be implemented absolutely.
  • the width and voltage of at least two sub-electrode strips can only be adjusted according to the actual situation to achieve the corresponding current Neff profile.
  • FIG. 10 is a block diagram showing an embodiment of a stereoscopic display device of the present invention.
  • the stereoscopic display device 900 of the present embodiment includes a display panel 910 and a liquid crystal lens 920 of the above embodiment.
  • the liquid crystal lens 920 is disposed on the light exiting side of the display panel 910.
  • liquid crystal lens 920 When the liquid crystal lens 920 is not powered, the viewer views a 2D image without parallax;
  • the liquid crystal lens 920 When the liquid crystal lens 920 is energized, the light of the different pixels P1 and P2 in the display panel 910 is emitted in different polarization directions by the refraction action described in the above embodiments, so that the left and right parallax images displayed on the display panel 910 are respectively sent.
  • the left eye L and the right eye R of the observer at the optimal viewing distance are fused by the observer's brain to obtain stereoscopic perception and view the 3D image.
  • the present invention divides at least one electrode strip in each strip electrode group of the conventional liquid crystal lens into at least two sub-electrode strips disposed at intervals, and makes the width of each sub-electrode strip different or received during operation.
  • the voltage is different, so that not only the 2D/3D display can be switched, but also the current Neff can be improved.
  • the match between the profile and the ideal Neff profile enhances the concentrating of the display and improves the viewing performance in 3D display.

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Abstract

公开了一种液晶透镜和立体显示装置，液晶透镜包括第一基板（610）、第二基板（620）以及液晶层（630），第二基板（620）上设置有多个条状电极组（621），每一条状电极组（621）包括依次绝缘堆叠的至少两层电极条（622，623，624），且宽度沿朝向第一基板（610）的方向依次减小，其中每一条状电极组（621）中的至少一层电极条分割成间隔设置的至少两个子电极条（624a，624b），且宽度或在工作时接收的电压彼此不同。立体显示装置，包括显示面板和液晶透镜，其不仅可以进行2D/3D显示的切换，还可以提高当前Neffprofile与理想Neffprofile的吻合度，增强显示的聚光性，改善3D显示时的观看效果。

Description

一种液晶透镜和立体显示装置
【技术领域】
本发明涉及立体显示技术领域，具体而言涉及一种液晶透镜和立体显示装置。
【背景技术】
当前的立体显示装置一般采用自由立体显示，即裸视3D（Three Dimensions，三维）显示，其主要通过加装在2D（Two Dimensions，二维）显示面板出光侧的液晶透镜等分光器件，将显示面板上显示的左、右视差图像分别送入观察者的左、右眼，再经过大脑融合从而使观看者获得立体感知。
其中，液晶透镜等分光器件主要采用透明材质来制作一定尺寸的柱透镜阵列，通过其折射作用使显示面板中不同像素的光以不同偏振方向出射，从而获得视差图像的分离。图1是现有技术中液晶透镜的结构示意图，如图1所示，液晶透镜100在未施加电压时，相邻两个条状电极组110、120所对应的液晶分子110a、120a的偏转相同，即预倾角均为θº。此时，条状电极组110、120对应的液晶层的中心和边缘均没有折射率差，用户通过液晶透镜100观看的是没有视差的2D图像。
图2是图1所示液晶透镜通电时的液晶偏转第一示意图，图3是图1所示液晶透镜通电时的液晶偏转第二示意图。结合图1、图2和图3所示，液晶透镜100在施加一定电压时，由于电场的分布，条状电极组110、120对应的液晶层的中心和边缘出现折射率差，并在满足聚焦模式时会形成类似透镜的相位分布，用户通过液晶透镜100观看的是具有左、右视差的2D图像，且在最佳观看距离处即可看到3D图像。
然而，由于预倾角均相同，在施加电压时液晶层130中的所有液晶分子（包括液晶分子110a、120a）会沿着电场的分布方向进行偏转，然而由于电场分布的不均匀以及实现过程中的操作等其他原因，极易导致相对称的两个条状电极组110、120所对应的液晶分子的偏转不对称，从而使得当前Neff profile（有效折射率曲线）L1、L2与理想Neff profile L存在吻合度差异（如图4和图5所示），进而降低显示装置的聚光性，影响3D显示时的观看效果。
综上所述，有必要提供一种液晶透镜和立体显示装置，以解决上述问题。
【发明内容】
本发明主要解决的技术问题是提供一种液晶透镜和立体显示装置，不仅可以进行2D/3D显示的切换，还可以提高当前Neff profile与理想Neff profile的吻合度，增强显示的聚光性，改善3D显示时的观看效果。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种液晶透镜，包括相对设置的第一基板和第二基板以及夹持于两者之间的液晶层，第二基板上设置有沿平行于第二基板的第一方向间隔排布的多个条状电极组，每一条状电极组包括沿垂直于第二基板的第二方向依次绝缘堆叠的至少两层电极条，且至少两层电极条的宽度沿朝向第一基板的方向依次减小，其中每一条状电极组中最邻近第一基板的电极条沿第一方向分割成间隔设置的至少两个子电极条，或最邻近第二基板的电极条和最邻近第一基板的电极条之间的电极条沿第一方向分割成间隔设置的至少两个子电极条，至少两个子电极条的宽度彼此不同或者在工作时接收的电压彼此不同，同一条状电极组中的各电极条在工作时接收的电压彼此不同，且不同条状电极组中的同层电极条在工作时接收的电压彼此相同。
其中，每一条状电极组包括沿第二方向依次绝缘堆叠的第一电极条、第二电极条和第三电极条，其中第一电极条最邻近第二基板。
其中，第三电极条分割成至少两个子电极条。
其中，第二电极条分割成至少两个子电极条。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种液晶透镜，包括相对设置的第一基板和第二基板以及夹持于两者之间的液晶层，第二基板上设置有沿平行于第二基板的第一方向间隔排布的多个条状电极组，每一条状电极组包括沿垂直于第二基板的第二方向依次绝缘堆叠的至少两层电极条，且至少两层电极条的宽度沿朝向第一基板的方向依次减小，其中每一条状电极组中的至少一层电极条沿第一方向分割成间隔设置的至少两个子电极条，且至少两个子电极条的宽度彼此不同或者在工作时接收的电压彼此不同。
其中，第一基板设置有与多个条状电极组相对的公共电极。
其中，至少两层电极条中最邻近第一基板的电极条沿第一方向分割成间隔设置的至少两个子电极条。
其中，至少两层电极条中位于最邻近第二基板的电极条和最邻近第一基板的电极条之间的电极条沿第一方向分割成间隔设置的至少两个子电极条。
其中，每一条状电极组包括沿第二方向依次绝缘堆叠的第一电极条、第二电极条和第三电极条，其中第一电极条最邻近第二基板。
其中，第三电极条分割成至少两个子电极条。
其中，第二电极条分割成至少两个子电极条。
其中，至少两层电极条中的每一电极条在第二基板上的投影区域均落在更靠近第二基板的其他电极条在第二基板上的投影区域。
其中，同一条状电极组中的各电极条在工作时接收的电压彼此不同，且不同条状电极组中的同层电极条在工作时接收的电压彼此相同。
为解决上述技术问题，本发明采用的又一个技术方案是：提供一种立体显示装置，包括显示面板以及液晶透镜，液晶透镜设置于显示面板的出光侧，其包括相对设置的第一基板和第二基板以及夹持于两者之间的液晶层，第二基板上设置有沿平行于第二基板的第一方向间隔排布的多个条状电极组，每一条状电极组包括沿垂直于第二基板的第二方向依次绝缘堆叠的至少两层电极条，且至少两层电极条的宽度沿朝向第一基板的方向依次减小，其中每一条状电极组中的至少一层电极条沿第一方向分割成间隔设置的至少两个子电极条，且至少两个子电极条的宽度彼此不同或者在工作时接收的电压彼此不同。
其中，至少两层电极条中最邻近第一基板的电极条沿第一方向分割成间隔设置的至少两个子电极条。
其中，至少两层电极条中位于最邻近第二基板的电极条和最邻近第一基板的电极条之间的电极条沿第一方向分割成间隔设置的至少两个子电极条。
其中，每一条状电极组包括沿第二方向依次绝缘堆叠的第一电极条、第二电极条和第三电极条，其中第一电极条最邻近第二基板。
其中，第三电极条分割成至少两个子电极条。
其中，第二电极条分割成至少两个子电极条。
本发明的有益效果是：本发明通过将传统液晶透镜中每一条状电极组中的至少一层电极条分割成间隔设置的至少两个子电极条，并且各个子电极条的宽度不同或在工作时接收的电压不同，进而不仅可以进行2D/3D显示的切换，还可以提高当前Neff profile与理想Neff profile的吻合度，增强显示的聚光性，改善3D显示时的观看效果。
【附图说明】
图1是现有技术中液晶透镜的结构示意图；
图2是图1所示液晶透镜通电时的液晶偏转第一示意图；
图3是图1所示液晶透镜通电时的液晶偏转第二示意图；
图4是图2所示液晶透镜对应的当前Neff profile示意图；
图5是图3所示液晶透镜对应的当前Neff profile示意图；
图6是本发明液晶透镜一实施例的结构示意图；
图7是图6所示液晶透镜对应的当前Neff profile示意图；
图8是本发明液晶透镜另一实施例的结构示意图；
图9是图8所示液晶透镜对应的当前Neff profile示意图；
图10是本发明立体显示装置一实施例的结构示意图。
【具体实施方式】
本发明提供了一种液晶透镜和立体显示装置。具体而言，本发明的液晶透镜主要将传统液晶透镜中每一条状电极组中的至少一层电极条分割成间隔设置的至少两个子电极条，并且使得各个子电极条的宽度不同或在工作时接收的电压不同，以此提高当前Neff profile与理想Neff profile的吻合度，增强显示的聚光性，改善3D显示时的观看效果的目的。
下面结合附图和实施例对本发明进行详细说明。
图6是本发明液晶透镜一实施例的结构示意图。如图6所示，本实施的液晶透镜600包括相对设置的第一基板610和第二基板620以及夹持于两者之间的液晶层630。
在本实施例中，第二基板620上设置有沿第一方向X间隔排布的多个条状电极组621，其中第一方向X平行于第二基板620所在的水平方向。
每一条状电极组621包括沿第二方向Y依次绝缘堆叠的第一层电极条622、第二层电极条623和第三层电极条624。其中，第二方向Y垂直于第二基板620所在的水平方向，即与第一方向X互相垂直。第一层电极条622的宽度d1大于第二层电极条623的宽度d2，且第二层电极条623在第二基板620上的投影区域落在第一层电极条622在第二基板620上的投影区域中。第二层电极条623的宽度d2大于第三层电极条624的宽度d3，且第三层电极条624在第二基板620上的投影区域落在第二层电极条623在第二基板620上的投影区域中。
并且，第三层电极条624包括沿第一方向X间隔设置的第一子电极条624a和第二子电极条624b，且两者的宽度不相同。在其他实施例中，也可以设置第一子电极条624a和第二子电极条624b的宽度相同，但工作时接收的电压不相同。
在本实施例中，第一基板610上设置有与多个条状电极组621相对的公共电极611，优选公共电极611为一整片透明ITO（氧化铟锡）层。
图7是图6所示液晶透镜对应的当前Neff profile示意图。下面结合图6和图7详细介绍本实施例的液晶透镜实现2D/3D显示切换的工作原理及过程：
液晶透镜600在未施加电压时，每一条状电极组621对应的液晶层的中心和边缘均没有折射率差，此时图像光线通过液晶透镜600时不会发生折射现象，即不会产生视差。
当对液晶透镜600施加工作电压时，由于越靠近液晶层630需要使液晶层630中液晶分子偏转的能量越大，因此第一层电极条622接收的电压v1小于第二层电极条623接收的电压v2，第二层电极条623接收的电压v2小于第三层电极条624接收的电压v3。与此同时，第一子电极条624a接收电压产生电场，使其对应的液晶分子产生如图2所示的偏转，第二子电极条624b接收电压产生电场，使如图2中相应处偏转异常的液晶分子朝向理想的偏转方向偏转，从而使其对应的Neff profile L3相比较于图4所示的Neff profile L1与理想Neff profile L更加吻合（图中虚线选定区域），进而使得液晶透镜600的聚光性更强，观看者使用其进行3D观看时效果更佳。
图8是本发明液晶透镜另一实施例的结构示意图。如图8所示，本实施例的液晶透镜800与上述实施例的液晶透镜600的不同之处在于：本实施例的第三层电极条824为一整体，第二层电极条823包括间隔设置的第一子电极条823a和第二子电极条823b。
在本实施例中，第一子电极条823a接收电压产生电场，使其对应的液晶分子产生如图3所示的偏转，第二子电极条823b接收电压产生电场，使如图3中相应处偏转异常的液晶分子朝向理想的偏转方向偏转，从而使其对应的Neff profile L4（如图9所示）相比较于图5所示的Neff profile L2与理想Neff profile L更加吻合（图中虚线选定区域），进而使得液晶透镜800的聚光性更强，观看者使用其进行3D观看时效果更佳。
应理解，前述两个实施例的液晶透镜及其所包含的子电极条的设置仅供说明举例，本发明可根据具体的液晶分子偏转特性将条状电极组中的任意一层电极条划分为任意至少两个子电极条，不限于划分为前文所举例的三层电极条，且每层电极条包括的子电极条亦可根据实际应用进行调整，只需满足将实际液晶分子偏转尽可能与理想状态下液晶分子的偏转相吻合即可。另外，需要说明的是，由于电场分布的不均匀以及其它实际操作原因，理想Neff profile L并不能绝对实现，只能根据实际情况对至少两子电极条的宽度和电压进行调整以实现对应的当前Neff profile尽可能与其吻合。
图10是本发明的立体显示装置一实施例的结构示意图。如图10所示，本实施例的立体显示装置900包括：显示面板910和上述实施例的液晶透镜920。其中，液晶透镜920设置于显示面板910的出光侧。
液晶透镜920未通电时，观看者观看的是没有视差的2D图像；
液晶透镜920通电时，其通过上述实施例所述的折射作用使显示面板910中不同像素P1、P2的光以不同偏振方向出射，从而将显示面板910上显示的左、右视差图像分别送入处于最佳观看距离处的观察者的左眼L、右眼R，再经过观察者大脑的融合从而获得立体感知，观看3D图像。
综上所述，本发明通过将传统液晶透镜中每一条状电极组中的至少一层电极条分割成间隔设置的至少两个子电极条，并且使得各个子电极条的宽度不同或在工作时接收的电压不同，进而不仅可以进行2D/3D显示的切换，还可以提高当前Neff profile与理想Neff profile的吻合度，增强显示的聚光性，改善3D显示时的观看效果。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (19)

  1. 一种液晶透镜，其中，所述液晶透镜包括相对设置的第一基板和第二基板以及夹持于两者之间的液晶层，所述第二基板上设置有沿平行于所述第二基板的第一方向间隔排布的多个条状电极组，每一所述条状电极组包括沿垂直于所述第二基板的第二方向依次绝缘堆叠的至少两层电极条，且所述至少两层电极条的宽度沿朝向所述第一基板的方向依次减小，其中每一所述条状电极组中最邻近所述第一基板的所述电极条沿所述第一方向分割成间隔设置的至少两个子电极条，或最邻近所述第二基板的电极条和最邻近所述第一基板的电极条之间的电极条沿所述第一方向分割成间隔设置的所述至少两个子电极条，所述至少两个子电极条的宽度彼此不同或者在工作时接收的电压彼此不同，同一所述条状电极组中的各电极条在工作时接收的电压彼此不同，且不同所述条状电极组中的同层电极条在工作时接收的电压彼此相同。
  2. 根据权利要求1所述的液晶透镜，其中，每一所述条状电极组包括沿所述第二方向依次绝缘堆叠的第一电极条、第二电极条和第三电极条，其中第一电极条最邻近所述第二基板。
  3. 根据权利要求2所述的液晶透镜，其中，所述第三电极条分割成所述至少两个子电极条。
  4. 根据权利要求2所述的液晶透镜，其中，所述第二电极条分割成所述至少两个子电极条。
  5. 一种液晶透镜，其中，所述液晶透镜包括相对设置的第一基板和第二基板以及夹持于两者之间的液晶层，所述第二基板上设置有沿平行于所述第二基板的第一方向间隔排布的多个条状电极组，每一所述条状电极组包括沿垂直于所述第二基板的第二方向依次绝缘堆叠的至少两层电极条，且所述至少两层电极条的宽度沿朝向所述第一基板的方向依次减小，其中每一所述条状电极组中的至少一层所述电极条沿所述第一方向分割成间隔设置的至少两个子电极条，且所述至少两个子电极条的宽度彼此不同或者在工作时接收的电压彼此不同。
  6. 根据权利要求5所述的液晶透镜，其中，所述第一基板设置有与所述多个条状电极组相对的公共电极。
  7. 根据权利要求5所述的液晶透镜，其中，所述至少两层电极条中最邻近所述第一基板的电极条沿所述第一方向分割成间隔设置的所述至少两个子电极条。
  8. 根据权利要求5所述的液晶透镜，其中，所述至少两层电极条中位于最邻近所述第二基板的电极条和最邻近所述第一基板的电极条之间的电极条沿所述第一方向分割成间隔设置的所述至少两个子电极条。
  9. 根据权利要求5所述的液晶透镜，其中，每一所述条状电极组包括沿所述第二方向依次绝缘堆叠的第一电极条、第二电极条和第三电极条，其中第一电极条最邻近所述第二基板。
  10. 根据权利要求9所述的液晶透镜，其中，所述第三电极条分割成所述至少两个子电极条。
  11. 根据权利要求9所述的液晶透镜，其中，所述第二电极条分割成所述至少两个子电极条。
  12. 根据权利要求5所述的液晶透镜，其中，所述至少两层电极条中的每一电极条在所述第二基板上的投影区域均落在更靠近所述第二基板的其他电极条在所述第二基板上的投影区域。
  13. 根据权利要求5所述的液晶透镜，其中，同一所述条状电极组中的各电极条在工作时接收的电压彼此不同，且不同所述条状电极组中的同层电极条在工作时接收的电压彼此相同。
  14. 一种立体显示装置，其中，所述立体显示装置包括：
    显示面板以及液晶透镜，所述液晶透镜设置于所述显示面板的出光侧，包括相对设置的第一基板和第二基板以及夹持于两者之间的液晶层，所述第二基板上设置有沿平行于所述第二基板的第一方向间隔排布的多个条状电极组，每一所述条状电极组包括沿垂直于所述第二基板的第二方向依次绝缘堆叠的至少两层电极条，且所述至少两层电极条的宽度沿朝向所述第一基板的方向依次减小，其中每一所述条状电极组中的至少一层所述电极条沿所述第一方向分割成间隔设置的至少两个子电极条，且所述至少两个子电极条的宽度彼此不同或者在工作时接收的电压彼此不同。
  15. 根据权利要求14所述的立体显示装置，其中，所述至少两层电极条中最邻近所述第一基板的电极条沿所述第一方向分割成间隔设置的所述至少两个子电极条。
  16. 根据权利要求14所述的立体显示装置，其中，所述至少两层电极条中位于最邻近所述第二基板的电极条和最邻近所述第一基板的电极条之间的电极条沿所述第一方向分割成间隔设置的所述至少两个子电极条。
  17. 根据权利要求14所述的立体显示装置，其中，每一所述条状电极组包括沿所述第二方向依次绝缘堆叠的第一电极条、第二电极条和第三电极条，其中第一电极条最邻近所述第二基板。
  18. 根据权利要求17所述的立体显示装置，其中，所述第三电极条分割成所述至少两个子电极条。
  19. 根据权利要求17所述的立体显示装置，其中，所述第二电极条分割成所述至少两个子电极条。
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CN103605245B (zh) * 2013-11-20 2016-04-20 深圳市华星光电技术有限公司 一种液晶透镜和立体显示装置
CN104570542B (zh) * 2015-02-02 2018-09-04 京东方科技集团股份有限公司 液晶透镜和显示装置
CN107102455B (zh) * 2016-02-23 2020-03-10 上海和辉光电有限公司 显示面板及其驱动方法、显示装置
CN107942528B (zh) * 2018-01-02 2021-01-26 京东方科技集团股份有限公司 一种裸眼3d显示设备及其制作方法
CN109856871B (zh) * 2019-03-29 2022-08-19 京东方科技集团股份有限公司 显示基板、显示面板和显示装置

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