WO2013007036A1 - 一种将信号光转换成双向圆偏光立体成像的液晶光阀 - Google Patents

一种将信号光转换成双向圆偏光立体成像的液晶光阀 Download PDF

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Publication number
WO2013007036A1
WO2013007036A1 PCT/CN2011/077943 CN2011077943W WO2013007036A1 WO 2013007036 A1 WO2013007036 A1 WO 2013007036A1 CN 2011077943 W CN2011077943 W CN 2011077943W WO 2013007036 A1 WO2013007036 A1 WO 2013007036A1
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Prior art keywords
liquid crystal
imaging
phase difference
difference compensation
film
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PCT/CN2011/077943
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English (en)
French (fr)
Inventor
潘汉强
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惠州市睿立宝莱光电科技有限公司
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Publication of WO2013007036A1 publication Critical patent/WO2013007036A1/zh

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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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
    • G02B5/305—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers

Definitions

  • Liquid crystal light valve for converting signal light into bidirectional circular polarized stereo imaging
  • Television and 2D imaging equipment are mature imaging technology devices that are widely used in society today. Although the current television and 2D imaging equipment can initially meet the needs of people for visual viewing, information transmission and acquisition of related visual image signals, it is still unable to satisfy people's further pursuit of more realistic, more professional and more aesthetic visual signals.
  • the current 3D projection imaging equipment has a complicated technical composition, high cost, and high operation and maintenance technology.
  • the 2D imaging devices that exist in the current society cannot be completely eliminated in a short time, and 3D imaging cannot be realized, which cannot meet the needs of people to fully use the social inventory 2D imaging device 3D. Summary of the invention
  • the object of the present invention is to convert a signal light into a bidirectional circular polarized stereo imaging technology, so that the complex state of the current 3D projection device can be technically compressed; second, the social inventory 2D imaging device can be conveniently By adding additional devices and processing the related circuits, it becomes a 3D imaging device, which not only makes the current 3D projection device technically simpler and cheaper, but also can effectively solve the 3D imaging application of social inventory 2D equipment. problem.
  • the invention consists of a polarizer, a liquid crystal cell and a phase difference compensation film.
  • the liquid crystal cell is between the polarizer and the phase difference compensation film, the polarizer is at the natural light incident end, and the phase difference compensation film is at the imaging end.
  • the phase difference compensation film thickness is 0.
  • the thickness of the liquid crystal cell is 0. 2mm-2. 5mm; the phase difference compensation film thickness is 0.
  • the thickness of the liquid crystal cell is 0. 2mm-2. . 03mm- 0. 2
  • the technical units for imaging with the present invention are: a video conversion circuit, a signal acquisition system, a synchronous control circuit, and a drive circuit.
  • connection method of the invention and the supporting imaging technology unit is divided into two types.
  • the connection mode is: the playback device is simultaneously connected with the display device and the signal acquisition system, the signal acquisition system is connected with the synchronous control circuit, and the synchronous control circuit is connected.
  • the drive circuit Connected to the drive circuit, the drive circuit is connected to the liquid crystal light valve.
  • connection method is: Connected to the video conversion circuit, the video conversion circuit is simultaneously connected with the display device and the signal acquisition system, the signal acquisition system is connected with the synchronous control circuit, the synchronous control circuit is connected with the drive circuit, and the drive circuit is connected with the liquid crystal light valve.
  • the working process of the independent 3D imaging of the present invention is as follows:
  • the signal acquisition system collects from the conventional picture signal source to the imaging signal, and transmits it to the driving circuit through the synchronous control circuit, and the driving circuit drives the present invention to realize bidirectional circular polarized light stereo imaging.
  • the working process is as follows: First, the video conversion circuit is connected to the imaging output end of the 2D imaging device, and is transmitted to the driving circuit through the synchronous control circuit, and the driving circuit drives the present invention to realize the bidirectional circular polarizing stereoscopic Imaging.
  • the invention when the invention is connected with the peripheral device of the known technology and realizes 3D imaging, only a single machine operation is required, and a set of devices can be subtracted compared with the current 3D projection imaging device. And the cost is both large and small; the invention is connected with the peripheral device of the known technology, and after the video conversion circuit is added, the 3D imaging device can be imaged, and the 3D imaging of the existing 2D device can be successfully solved. The problem, there are a lot of application needs and huge market potential.
  • FIG. 1 is an analytical diagram of a structure of a left-handed liquid crystal light valve, and is also an abstract drawing of the specification;
  • FIG. 2 is an analytical diagram of a structure of a right-handed liquid crystal light valve;
  • FIG. 3 is a composition of a 3D imaging system.
  • Figure 4 is a schematic diagram showing the block connection of the 2D imaging 3D imaging system.
  • phase difference compensation film (2) liquid crystal cell, (3) polarizer, (4) signal light source, (5) playback device, (6) video conversion device, (7) display Equipment, (8) signal acquisition system, (9) synchronous control circuit, (10) drive circuit, (11) liquid crystal light valve.
  • the polarizer 3 is a composite film composed of two layers of TAC and PVA, and has a composite thickness of 0.18 mm; the thickness of the liquid crystal cell 2 is 2. 2 ⁇ ; and the retardation parameter of the phase difference compensation film has a value of 125 ⁇ .
  • the video conversion circuit 6 converts the 2D image format signal into a 3D image format signal recognizable by the invention;
  • the signal acquisition system 8 has the function of reading the picture playback timing signal, and adopts a general frequency division and amplification circuit;
  • the synchronization control circuit 9 is composed of The calculation unit and the control unit are analyzed;
  • the drive circuit 10 is composed of an amplification switch circuit.

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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)
  • Studio Devices (AREA)

Abstract

一种将信号光转换成双向圆偏光立体成像的液晶光阀，由偏光片（3）、液晶盒（2）及位相差补偿膜（1）组成。液晶盒（2）处于偏光片（3）和位相差补偿膜（1）之间，偏光片（3）在自然光入射端，位相差补偿膜（1）在成像端。偏光片（3）是由2-10层TAC膜及1层PVA膜组成的复合膜，复合膜总厚度为0.10mm-3.0mm；液晶盒（2）厚度为0.2mm-2.5mm；位相差补偿膜（1）厚度为0.03mm-0.2mm。该液晶光阀在与已知技术的外围设备连接的基础上，简单添加视讯转换电路后，即可实现2D成像设备3D成像化，成功地解决现存2D设备3D成像化的问题。

Description

Figure imgf000003_0001
一种将信号光转换成双向圆偏光立体成像的液晶光阀 技术领域
电器成像设备中将 2D成像设备转换成 3D成像设备用的一种 将信号光转换成双向圓偏光立体成像的液晶光阀。 背景技术
电视和 2D成像设备是目前社会上广泛使用的成熟成像技术设 备。 现行的电视和 2D成像设备虽然可以初步满足人们视觉观赏、 信息传递及获取相关视觉影像信号的需求， 但是， 尚不能满足人 们对视觉信号更逼真、 更专业、 更具有美感的进一步追求。
近年来， 3D影像技术的发明、 应用及逐步普及， 初步弥补了 2D影像设备的上述不足， 满足了人们观赏更逼真、 更专业、 更具 有美感 3D影像的追求。
但是， 现行的 3D投影成像设备， 技术组成比较复杂， 存在成 本高、 操作维护技术高难等问题。 同时， 现行社会上大量存在的 2D成像设备短时间内尚无法全部淘汰， 又不能实现 3D成像， 不能 满足人们充分使用社会存量 2D成像设备 3D化的需求。 发明内容
本发明的目的是通过一种将信号光转换成双向圓偏光立体成 像的技术，使得一，可在技术上筒化现行 3D投影设备的复杂状态； 二， 可方便地将社会存量 2D成像设备， 通过添加附加装置及对相 关电路的筒单处理， 使其成为 3D成像设备， 不仅可以使现行 3D 投影设备技术上更筒单、 成本更低廉， 而且， 可有效解决社会存 量 2D设备 3D成像化应用问题。
本发明由偏光片、 液晶盒及位相差补偿膜组成， 液晶盒处于 偏光片和位相差补偿膜之间， 偏光片在自然光入射端， 位相差补 偿膜在成像端。
偏光片是由 2-10层 TAC膜及 1层 PVA膜组成的复合膜， 复合 膜总厚度为 0. 10mm_3. Omm; 液晶盒厚度为 0. 2mm-2. 5mm; 位相差 补偿膜厚度为 0. 03mm- 0. 2
与本发明配套成像的技术单元有： 视讯转换电路、 信号采集 系统、 同步控制电路、 驱动电路。
本发明与配套成像技术单元的连接方式分为两种， 独立 3D成 像时， 其连接方式为： 播放设备同时与显示设备和信号采集系统 连接， 信号采集系统与同步控制电路相连接， 同步控制电路与驱 动电路相连接， 驱动电路与液晶光阀相连接。
2D成像设备转换成 3D成像设备时， 其连接方式为： 播放设备 与视讯转换电路相连接， 视讯转换电路同时与显示设备和信号采 集系统连接， 信号采集系统与同步控制电路相连接， 同步控制电 路与驱动电路相连接， 驱动电路与液晶光阀相连接。
本发明独立 3D成像时的工作过程如下： 信号采集系统从传统 图片信号源采集到成像信号， 经同步控制电路传送给驱动电路， 驱动电路驱动本发明实现双向圓偏光立体成像。
本发明将 2D成像设备转换 3D成像设备时， 其工作过程如下： 首先将视频转换电路与 2D成像设备成像输出端连接， 经同步控制 电路传送给驱动电路， 驱动电路驱动本发明实现双向圓偏光立体 成像。
对 3D投影成像设备而言， 本发明与已知技术外围设备连接并 实现 3D成像时， 只需要单机工作即可， 较比现行 3D投影成像设 备而言， 可以减除一套设备， 在技术上和成本上均大为筒约； 本 发明在与已知技术外围设备连接的基础上， 筒单添加视讯转换电 路后， 即可实现 2D成像设备 3D成像化， 成功地解决现存 2D设备 3D成像化的问题， 有大量的应用需求和巨大的市场潜力。 附图说明
附图 1 是左旋液晶光阀结构解析图， 也是说明书摘要附图； 附图 2是右旋液晶光阀结构解析图； 附图 3是 3D成像系统组成方 框连接示意图； 附图 4是 2D设备 3D成像化系统组成方框连接示 意图。
图中各标号分别是： （1 )位相差补偿膜， （2 ) 液晶盒， （3 ) 偏光片， （4 )信号光源， (5) 播放设备，（6)视讯转换设备，（7)显示 设备，（8)信号采集系统，（9)同步控制电路， (10)驱动电路， (11)液 晶光阀。 具体实施方式
现举一实例， 对本发明做进一步说明。
实施例：
偏光片 3 是由两层 TAC及 PVA组成的复合膜， 复合厚度为 0. 18mm; 液晶盒 2的厚度为 2. 2匪；位相差补偿膜 1位相延迟参数 值为 125謹。
视讯转换电路 6是将 2D影像格式信号转换成本发明可识别的 3D影像格式信号； 信号采集系统 8具有读取图片播放时序信号的 功能， 采用通用的分频、 放大电路组成； 同步控制电路 9 由分析 计算单元及控制单元； 驱动电路 10是由放大开关电路组成。

Claims

权利要求书
1、 一种将信号光转换成双向圓偏光立体成像的液晶光阀，由 偏光片、 液晶盒及位相差补偿膜组成， 其特征在于： 液晶盒处于 偏光片和位相差补偿膜之间， 偏光片在自然光入射端， 位相差补 偿膜在成像端。
2、 如权利要求 1中所述的一种将信号光转换成双向圓偏光立 体成像的液晶光阀， 其特征在于： 偏光片是由 2-10层 TAC膜及 1 层 PVA膜组成的复合膜，复合膜总厚度为 0. 10匪- 3. 0匪。
3、 如权利要求 1中所述的一种将信号光转换成双向圓偏光立 体成像的液晶光阀， 其特征在于： 液晶盒厚度为 0. 2mm-2. 5mm。
4、 如权利要求 1中所述的一种将信号光转换成双向圓偏光立 体成像的液晶光阀， 其特征在于： 位相差补偿膜厚度为 0. 03mm-0. 2mm。
PCT/CN2011/077943 2011-07-13 2011-08-03 一种将信号光转换成双向圆偏光立体成像的液晶光阀 WO2013007036A1 (zh)

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