WO2017219407A1 - 液晶透镜和3d显示器 - Google Patents

液晶透镜和3d显示器 Download PDF

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Publication number
WO2017219407A1
WO2017219407A1 PCT/CN2016/089783 CN2016089783W WO2017219407A1 WO 2017219407 A1 WO2017219407 A1 WO 2017219407A1 CN 2016089783 W CN2016089783 W CN 2016089783W WO 2017219407 A1 WO2017219407 A1 WO 2017219407A1
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Prior art keywords
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liquid crystal
display
crystal lens
upper substrate
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PCT/CN2016/089783
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English (en)
French (fr)
Inventor
谢畅
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Priority to US15/125,192 priority Critical patent/US10114227B2/en
Publication of WO2017219407A1 publication Critical patent/WO2017219407A1/zh
Anticipated expiration legal-status Critical
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/08—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of polarising materials
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/14—Protective coatings, e.g. hard coatings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/12—Fluid-filled or evacuated lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
    • G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/34—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. three-dimensional [3D] slide viewers
    • G02B30/36—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. three-dimensional [3D] slide viewers using refractive optical elements, e.g. prisms, in the optical path between the images and the observer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3083—Birefringent or phase retarding elements
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133526—Lenses, e.g. microlenses or Fresnel lenses
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13392—Gaskets; Spacers; Sealing of cells spacers dispersed on the cell substrate, e.g. spherical particles, microfibres
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • G02F1/133638—Waveplates, i.e. plates with a retardation value of lambda/n

Definitions

  • the invention belongs to the technical field of stereoscopic display, and particularly relates to a liquid crystal lens and a 3D display having the liquid crystal lens.
  • the naked-eye 3D display technology can realize the effect of displaying 3D images when viewing characters and pictures without using special glasses, and the technology is closer to the user's daily use habits, so the naked-eye 3D display technology has also become a trend of development in the future.
  • the liquid crystal lens is applied to the naked eye 3D display field, and has the advantages of simple control, high reliability, and low driving voltage, and has great potential application.
  • the liquid crystal layer of the liquid crystal lens has a large thickness, it is necessary to use a large spacer which supports the thickness of the liquid crystal cell.
  • the spacer has a certain influence on the outgoing direction of the light emitted by the display panel, thereby changing the light intensity distribution of different orientations of the viewing interval, which causes the contrast of the display effect to decrease, the color is deteriorated, and the larger the volume, the more serious the influence.
  • the spacer will form obvious bright spots on the reflected light, causing the dark state brightness to be high, reducing the contrast and affecting the overall 3D display effect.
  • An object of the present invention is to provide a liquid crystal lens which can improve the contrast of a screen and enhance the 3D display effect.
  • Another object of the present invention is to provide a 3D display using the above liquid crystal lens.
  • the present invention provides a liquid crystal lens, comprising: an upper substrate, a lower substrate, a liquid crystal layer and a spacer disposed between the upper substrate and the lower substrate, wherein the spacer is used to separate the Upper substrate and The lower substrate is coated with a ⁇ /4 phase retardation film on the surface of the spacer.
  • the material of the ⁇ /4 phase retardation film is at least one of a cycloolefin polymer, a polycarbonate, a polyethylene terephthalate, and a cellulose-based polymer.
  • a protective film is further included, and the protective film covers the surface of the ⁇ /4 phase retardation film.
  • the protective film comprises an acrylic material.
  • the spacer is evenly distributed between the upper substrate and the lower substrate.
  • the spacer is spherical.
  • the spacer has a diameter of between 20 um and 50 um.
  • the spacer is made of a resin material.
  • the light transmittance of the resin material is greater than 90%.
  • the present invention also provides a 3D display comprising a liquid crystal lens, the liquid crystal lens comprising: an upper substrate, a lower substrate, a liquid crystal layer and a spacer disposed between the upper substrate and the lower substrate, the spacer
  • the surface of the object is coated with a ⁇ /4 phase retardation film.
  • the material of the ⁇ /4 phase retardation film is at least one of a cycloolefin polymer, a polycarbonate, a polyethylene terephthalate, and a cellulose-based polymer.
  • a protective film is further included, and the protective film covers the surface of the ⁇ /4 phase retardation film.
  • the protective film comprises an acrylic material.
  • the spacer is evenly distributed between the upper substrate and the lower substrate.
  • the spacer is spherical.
  • the spacer has a diameter of between 20 um and 50 um.
  • the spacer is made of a resin material.
  • the light transmittance of the resin material is greater than 90%.
  • the present invention by providing a ⁇ /4 phase retardation film on the surface of the spacer, light partially incident on the ⁇ /4 phase retardation film cannot be reflected out of the film, thereby reducing the reflection of the spacer by light.
  • the light leakage has improved the contrast of the picture and improved the 3D stereoscopic display effect.
  • the 3D display of the invention has high picture contrast and good 3D stereoscopic display effect.
  • FIG. 1 is a schematic structural view of a liquid crystal lens of the present invention
  • Figure 2 is an enlarged schematic view of the spacer of Figure 1;
  • Figure 3 is a schematic view of the optical path of the spacer of Figure 2;
  • FIG. 4 is a schematic view showing the structure of a 3D display having the liquid crystal lens structure of FIG. 1.
  • the liquid crystal lens 100 of the present invention includes an upper substrate 10 , a lower substrate 20 , and a liquid crystal layer 30 encapsulated between the upper substrate 10 and the lower substrate 20 .
  • the upper substrate 10 and the lower substrate 20 are oppositely disposed.
  • a first electrode layer (not shown) is disposed on a side of the upper substrate 10 adjacent to the lower substrate 20, and a second electrode layer is disposed on a side of the lower substrate 20 adjacent to the upper substrate 10 (Fig. Not shown), the liquid crystal layer 30 is sandwiched between the first electrode layer and the second electrode layer.
  • a spacer 40 is further distributed in the liquid crystal layer 30.
  • the spacer 40 is evenly distributed between the upper substrate 10 and the lower substrate 20.
  • the spacer 40 is supported between the upper substrate 10 and the lower substrate 20 such that the upper substrate 10 and the lower substrate 20 are separated.
  • the outer surface of the spacer 40 is coated with a ⁇ /4 phase retardation film 41.
  • the ⁇ /4 phase retardation film 41 is first passed; after passing through the ⁇ /4 phase retardation film 41, the natural light is converted into left-handed circularly polarized light; the left-handed circularly polarized light is reached.
  • the surface of the spacer 40 After the surface of the spacer 40, the surface of the spacer 40 is reflected; after the reflection, the light is converted from left-handed circular polarization to right-handed circularly polarized light, since the ⁇ /4 phase retardation film 41 can only be polarized by left-handed circular, so right The circularly polarized light cannot pass through the ⁇ /4 phase retardation film 41, that is, the reflected light is cut off on the ⁇ /4 phase retardation film 41, and cannot be reflected out, thereby reducing the reflected light at the spacer 40.
  • a method of arranging a ⁇ /4 phase retardation film on the surface of the spacer causes partial injection
  • the light of the ⁇ /4 phase retardation film cannot reflect the film, thereby reducing the light leakage caused by the reflection of the spacer by the light, thereby improving the contrast of the screen and improving the 3D stereoscopic display effect.
  • the ⁇ /4 phase retardation film 41 of the present invention may be plated on the surface of the spacer 40 by a sputtering method or a vacuum deposition coating.
  • the ⁇ /4 phase retardation film 41 may employ one or more of, for example, but not limited to, a cycloolefin polymer, a polycarbonate, a polyethylene terephthalate, and a cellulose-based polymer.
  • the outermost layer of the spacer 40 is further coated with a protective film 42.
  • a protective film 42 is plated on the ⁇ /4 phase retardation film 41. That is, the ⁇ /4 phase retardation film 41 is interposed between the spacer 40 and the protective film 42.
  • the protective film 42 serves to prevent abrasion of the ⁇ /4 phase retardation film 41 due to the movement of the spacer 40.
  • the protective film 42 may be made of an acrylic material and should have a relatively low moisture permeability.
  • the acrylic material in the present invention may include at least one of (meth) acrylate monomer and (meth) acrylamide single containing an aliphatic ring or an aromatic ring on the basis of poly(methyl methacrylate) (PMMA). body.
  • the spacer 40 may be a photo spacer (PS) or a ball spacer (BS).
  • PS photo spacer
  • BS ball spacer
  • the spacer 40 is spherical.
  • the diameter of the spherical spacer 40 may be between 20 um and 50 um. That is, the cell thickness of the liquid crystal lens 100 is approximately in the range of 20 ⁇ m to 50 ⁇ m.
  • the spacers 40 may also be strips or the like.
  • the spacer 40 may be made of a resin material; the transmittance of the light of the resin material is greater than 90% to reduce the intensity of the reflected light.
  • the material of the upper substrate 10 and the lower substrate 20 may be glass or other transparent material.
  • it is PET, APET, PC, PMMA or glass, and those skilled in the art can select a suitable material according to actual needs.
  • the present invention further provides a 3D display 500 including a liquid crystal lens 100, a liquid crystal display panel 200, and a backlight 300 which are sequentially stacked.
  • the liquid crystal lens 100 is the liquid crystal lens described in any one of the above.
  • the 3D display 500 provided by the present invention can be applied to any display function including, but not limited to, electronic paper, liquid crystal television, mobile phone, digital photo frame, tablet computer and the like. Product or component.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)

Abstract

一种液晶透镜（100），包括上基板（10）、下基板（20）、设置于所述上基板（10）与所述下基板（20）之间的液晶层（30）和隔垫物（40），所述隔垫物（40）用于隔开所述上基板（10）与所述下基板（20），所述隔垫物（40）表面涂覆有λ/4相位延迟膜（41）。通过在隔垫物（40）表面设置λ/4相位延迟膜（41）的方法，使得部分射入λ/4相位延迟膜的光线无法反射出该膜，从而减少了隔垫物（40）对光的反射而造成的漏光，达到提高了画面的对比度的目的，改善了3D立体显示效果，使得3D显示器（500）具有较高的画面对比度，3D显示效果好。

Description

液晶透镜和3D显示器
本发明要求2016年6月22日递交的发明名称为“液晶透镜和3D显示器”的申请号201610458286.7的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明属于立体显示技术领域，尤其涉及液晶透镜和具有该液晶透镜的3D显示器。
背景技术
裸眼3D显示技术能够实现在不使用专用眼镜的情况下，观看文字及图画时呈现出3D影像的效果，给技术更接近用户日常使用习惯，因而裸眼3D显示技术也成为未来的发展的趋势。
液晶透镜应用于裸眼3D显示领域，其具有控制简单，可靠性强及驱动电压低等优点，其具有巨大的潜在应用性。但是在实际设计过程中由于液晶透镜的液晶层厚度较大，需要使用较大的支撑液晶盒厚的隔垫物。而隔垫物对显示面板发出的光线的出射方向有一定影响从而改变观看区间的不同方位的光强分布，这样会导致显示效果的对比度下降，色彩变差，其体积越大影响越严重。特别是在暗态显示情况下，当有外界较强光线反射时，隔垫物对反射光会形成明显的亮斑，造成暗态亮度偏高，降低对比度，影响整体3D显示效果。
发明内容
本发明的目的在于提供一种能够提高画面对比度，提升3D显示效果的液晶透镜。
本发明的另一目的在于提供一种采用上述液晶透镜的3D显示器。
为了实现上述目的，本发明实施方式提供如下技术方案：
本发明提供一种液晶透镜，其中，包括：上基板、下基板、设置于所述上基板与所述下基板之间的液晶层和隔垫物，所述隔垫物用于隔开所述上基板与 所述下基板，所述隔垫物表面涂覆有λ/4相位延迟膜。
其中，所述λ/4相位延迟膜的材料为包括环烯烃聚合物、聚碳酸酯、聚对苯二甲酸乙二醇酯和基于纤维素的聚合物中的至少一种。
其中，还包括保护膜，所述保护膜覆盖在所述λ/4相位延迟膜表面。
其中，所述保护膜包括丙烯酸材料。
其中，所述隔垫物均匀分布在所述上基板与所述下基板之间。
其中，所述隔垫物为球形。
其中，所述隔垫物的直径为20um～50um之间。
其中，所述隔垫物采用树脂材料制成。
其中，所述树脂材料的透光率大于90％。
本发明还提供一种3D显示器，包括液晶透镜，所述液晶透镜包括：上基板、下基板、设置于所述上基板与所述下基板之间的液晶层和隔垫物，所述隔垫物表面涂覆有λ/4相位延迟膜。
其中，所述λ/4相位延迟膜的材料为包括环烯烃聚合物、聚碳酸酯、聚对苯二甲酸乙二醇酯和基于纤维素的聚合物中的至少一种。
其中，还包括保护膜，所述保护膜覆盖在所述λ/4相位延迟膜表面。
其中，所述保护膜包括丙烯酸材料。
其中，所述隔垫物均匀分布在所述上基板与所述下基板之间。
其中，所述隔垫物为球形。
其中，所述隔垫物的直径为20um～50um之间。
其中，所述隔垫物采用树脂材料制成。
其中，所述树脂材料的透光率大于90％。
本发明实施例具有如下优点或有益效果：
本发明的中通过在隔垫物表面设置λ/4相位延迟膜的方法，使得部分射入λ/4相位延迟膜的光线无法反射出该膜，从而减少了隔垫物对光的反射而造成的漏光，达到提高了画面的对比度的目的，改善了3D立体显示效果。本发明的3D显示器具有较高的画面对比度，3D立体显示效果好。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施 例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明液晶透镜结构示意图；
图2是具有图1所述的隔垫物放大示意图；
图3是图2所述的隔垫物上光路示意图；
图4是具有图1所述液晶透镜结构的3D显示器结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1和图2，本发明提供的液晶透镜100，包括：上基板10、下基板20、封装于所述上基板10与所述下基板20之间的液晶层30。具体的，所述上基板10和所述下基板20相对设置。所述上基板10靠近所述下基板20的一侧设置有第一电极层(图未示出)，所述下基板20上靠近所述上基板10的一侧设置有第二电极层(图未示出)，所述液晶层30夹在所述第一电极层和所述第二电极层之间。所述液晶层30中还分布有隔垫物40，优选的，所述隔垫物40均匀分布在所述上基板10与所述下基板20之间。所述隔垫物40支撑于所述上基板10和所述下基板20之间，使得所述上基板10和所述下基板20分离。所述隔垫物40的外表面涂覆有λ/4相位延迟膜41。
请参阅图3，当外界自然光照射到隔垫物40表面时，首先要经过λ/4相位延迟膜41；自然光经过λ/4相位延迟膜41后，会转变成左旋圆偏光；左旋圆偏光到达隔垫物40表面后，在隔垫物40表面发生反射；经反射后光线由左旋圆偏光转变为右旋圆偏光，由于所述λ/4相位延迟膜41只能通过左旋圆偏光，所以右旋圆偏光无法通过λ/4相位延迟膜41，即反射光在λ/4相位延迟膜41上被截止，不能反射出去，从而减少了隔垫物40处的反射光。
本发明的中通过在隔垫物表面设置λ/4相位延迟膜的方法，使得部分射入 λ/4相位延迟膜的光线无法反射出该膜，从而减少了隔垫物对光的反射而造成的漏光，达到提高了画面的对比度的目的，改善了3D立体显示效果。
进一步的，本发明所述λ/4相位延迟膜41可以通过溅射法或真空沉积镀膜镀在所述隔垫物40的表面。λ/4相位延迟膜41可以采用包括但不限于是环烯烃聚合物、聚碳酸酯、聚对苯二甲酸乙二醇酯和基于纤维素的聚合物中的一种或几种。
本发明一个优选的实施例中，所述隔垫物40最外层还涂覆有保护膜42。通常，先在隔垫物40表面镀上一层λ/4相位延迟膜41之后，再在λ/4相位延迟膜41上镀上一层保护膜42。也就是说，所述λ/4相位延迟膜41介于隔垫物40与所述保护膜42之间。所述保护膜42用于防止λ/4相位延迟膜41由于隔垫物40移动而造成的磨损。具体的，所述保护膜42可以采用包括丙烯酸材料，并且应当具有相对较低的透湿性。本发明中的丙烯酸材料可包括以下至少一种：在聚(甲基丙烯酸甲酯)(PMMA)基础上包含脂肪环或芳香环的(甲基)丙烯酸酯单体和(甲基)丙烯酰胺单体。
在本发明实施例中，隔垫物40可采用柱状隔垫物(photospacer，简称PS)或球形隔垫物(ballspacer，简称BS)。对于本发明中液晶透镜100的盒厚相对较大的情况，优选的所述隔垫物40为球形。球形隔垫物40的直径可以介于20um～50um之间。也就是说，液晶透镜100的盒厚大致的范围为20um～50um之间。在本发明的其他实施例中，所述隔垫物40还可以为条形等。
进一步的，所述隔垫物40的可以采用树脂材料；该树脂材料的光线的透过率大于90％，以减少反射光线的强度。
进一步具体的，上基板10和下基板20的材料可以为玻璃或其他透明材料。例如：为PET、APET、PC、PMMA或玻璃，本领域技术人员可以根据实际的需要选自合适的材料。
请参阅图4，本发明还提供一种3D显示器500，包括依次层叠设置的液晶透镜100、液晶显示面板200和背光源300。液晶透镜100即为上述任意一种所述的液晶透镜。
可以理解的是，本发明提供的3D显示器500可以应用于包括但不限于为：电子纸、液晶电视、移动电话、数码相框、平板电脑等任何具有显示功能的产 品或部件。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述的实施方式，并不构成对该技术方案保护范围的限定。任何在上述实施方式的精神和原则之内所作的修改、等同替换和改进等，均应包含在该技术方案的保护范围之内。

Claims (18)

  1. 一种液晶透镜，其中，包括：上基板、下基板、设置于所述上基板与所述下基板之间的液晶层和隔垫物，所述隔垫物表面涂覆有λ/4相位延迟膜。
  2. 如权利要求1所述的液晶透镜，其中，所述λ/4相位延迟膜的材料为包括环烯烃聚合物、聚碳酸酯、聚对苯二甲酸乙二醇酯和基于纤维素的聚合物中的至少一种。
  3. 如权利要求1所述的液晶透镜，其中，还包括保护膜，所述保护膜覆盖在所述λ/4相位延迟膜表面。
  4. 如权利要求3所述的液晶透镜，其中，所述保护膜包括丙烯酸材料。
  5. 如权利要求1所述的液晶透镜，其中，所述隔垫物均匀分布在所述上基板与所述下基板之间。
  6. 如权利要求1所述的液晶透镜，其中，所述隔垫物为球形。
  7. 如权利要求6所述的液晶透镜，其中，所述隔垫物的直径为20um～50um之间。
  8. 如权利要求6所述的液晶透镜，其中，所述隔垫物采用树脂材料制成。
  9. 如权利要求8所述的液晶透镜，其中，所述树脂材料的透光率大于90％。
  10. 一种3D显示器，其中，包括液晶透镜，所述液晶透镜包括：上基板、下基板、设置于所述上基板与所述下基板之间的液晶层和隔垫物，所述隔垫物表面涂覆有λ/4相位延迟膜。
  11. 如权利要求10所述的3D显示器，其中，所述λ/4相位延迟膜的材 料为包括环烯烃聚合物、聚碳酸酯、聚对苯二甲酸乙二醇酯和基于纤维素的聚合物中的至少一种。
  12. 如权利要求10所述的3D显示器，其中，还包括保护膜，所述保护膜覆盖在所述λ/4相位延迟膜表面。
  13. 如权利要求12所述的3D显示器，其中，所述保护膜包括丙烯酸材料。
  14. 如权利要求10所述的3D显示器，其中，所述隔垫物均匀分布在所述上基板与所述下基板之间。
  15. 如权利要求10所述的3D显示器，其中，所述隔垫物为球形。
  16. 如权利要求15所述的3D显示器，其中，所述隔垫物的直径为20um～50um之间。
  17. 如权利要求15所述的3D显示器，其中，所述隔垫物采用树脂材料制成。
  18. 如权利要求17所述的3D显示器，其中，所述树脂材料的透光率大于90％。
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